Knob switch buckle pressing equipment

Abstract

The application relates to a knob switch buckle pressing equipment, which comprises a rack, a dividing disc for assembling a knob switch and a knob assembly feeding device for driving the knob assembly to the dividing disc are arranged on the rack, a plurality of clamps for clamping the knob assembly are fixedly arranged on the dividing disc in the circumferential direction; and a base assembly feeding device for clamping the base assembly and pressing the base assembly on the knob assembly on the clamp is further arranged. By adopting the technical scheme, the contact is automatically pressed downward to make the rotor overcome the spring force and keep horizontal, the clamping assembly clamps the rotor from the lower side to prevent springback, then the base clamping device presses the base assembly downward to complete partial buckle fixation, the problems of large operation difficulty, misalignment and poor buckling in manual assembly are effectively solved, the contact and the base clamping device are relatively fixed on the same displacement assembly, the two are synchronously moved, the coaxiality of pre-pressing and pressing is guaranteed, and no additional driving is needed.

Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology, and in particular relates to a knob switch snap-fit ​​device. Background Technology

[0002] A rotary switch typically consists of a knob assembly and a base assembly, which are interconnected by multiple circumferentially arranged latches. The knob assembly contains a return spring and a rotor. When the base is not attached, the spring force causes one side of the rotor to spring up, making it difficult to maintain a horizontal position and complicating base assembly. Furthermore, the latches are usually distributed in multiple directions, such as front, back, left, and right, requiring pressure to be applied from multiple directions to fully lock them in place.

[0003] In existing technologies, the assembly of rotary switches mainly relies on manual operation or semi-automatic single-station equipment. Manual operation has the following problems: one hand presses the rotor while the other presses down the base, which is difficult to operate, leads to inaccurate alignment, poor engagement, and low efficiency. Although single-station press-fitting equipment can provide greater pressure, completing the snap-fit ​​assembly in multiple directions at one station at the same time can easily cause interference between the pressing head mechanisms in different directions. Furthermore, uneven force distribution during simultaneous multi-directional pressing can easily cause switch deformation or snap-fit ​​damage.

[0004] Furthermore, the loading and unloading processes of existing equipment still largely rely on manual labor or simple robotic arms, making it difficult to achieve fully automated continuous production and limiting overall efficiency. For example, the loading of knob assemblies, base assemblies, unloading after assembly, calibration, and transmission lack system integration, making it impossible to form an automated production line. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a rotary switch snap-fit ​​device, which solves the problem that the rotor rebounds due to the internal spring force of the rotary switch assembly, making it difficult to keep it horizontal, thus causing the need for manual pressing during base assembly, inaccurate alignment, and poor snap-fit.

[0006] The technical solution of the present invention: a rotary switch snap-fit ​​pressing device, comprising a frame, wherein a dividing plate for assembling rotary switches is provided on the frame and a rotary assembly feeding device for driving rotary assemblies to the dividing plate, wherein a plurality of clamps for clamping rotary assemblies are fixedly provided on the dividing plate along its circumference; and further comprising a base assembly feeding device for clamping base assemblies and pressing them onto the rotary assemblies on the clamps. The base assembly feeding device includes a base clamping device for clamping the base assembly and a base displacement assembly for moving the base clamping device. The base clamping device is fixedly provided with a contact, and the clamp has a positioning groove that matches the shape of the knob assembly. The bottom of the positioning groove is provided with a through hole for the knob to pass through downwards. The frame is provided with a clamping component for clamping the part of the knob assembly located below the clamp. When the contact abuts against the knob assembly, the clamping component clamps the knob assembly. Before the base clamping device releases the base assembly, the base assembly feeding device drives the base assembly to press onto the knob assembly. The frame is also equipped with a feeding device for removing the assembled rotary switches from the fixture.

[0007] By adopting the above technical solution, the contact automatically presses down on the rotor to overcome the spring force and maintain horizontality. Simultaneously, the clamping assembly clamps the rotor from below to prevent rebound. Then, the base clamping device presses down the base assembly to complete the snap-fit ​​fixation. This effectively solves the problems of high operational difficulty, inaccurate alignment, and poor fastening in manual assembly. The contact and base clamping device are relatively fixed on the same displacement component, and their synchronous movement ensures the coaxiality of pre-pressing and pressing, without requiring additional drive. Simultaneously, the indexing plate transfers the not fully locked assembly to the next station, where the pressing component completes the lateral snap-fit ​​pressing, avoiding interference from multiple pressing heads at the same station. The snap-fit ​​is evenly stressed and reliably locked. The fully automatic loading and unloading and multi-station design significantly improves assembly efficiency and yield, providing a foundation for fully automated production lines.

[0008] A further feature of the present invention is that the indexing plate includes a fixed base and a rotating indexing ring rotatably disposed around the fixed base, and the clamp is fixedly disposed on the rotating indexing ring.

[0009] With the above-mentioned further configuration, the indexing plate has a simple structure and precise indexing, which can sequentially deliver the rotary switch assembly to each assembly station, realize assembly line operation, and improve the assembly cycle and automation level.

[0010] A further feature of the present invention is as follows: a pressing assembly is provided on the fixed base. The pressing assembly includes a slanted groove slide and a guide groove slide that are linearly slidably disposed relative to the fixed base in the same direction. The pressing assembly also includes two driving devices that drive the slanted groove slide and the guide groove slide to move respectively. The driving devices are fixedly disposed on the fixed base. The slanted groove slide has two slanted grooves that are inclined to its own direction of movement. The two slanted grooves are symmetrically disposed with respect to the direction of movement of the slanted groove slide. A transmission pin is slidably disposed in each of the two slanted grooves. Each transmission pin is rotatably connected to a pressure rod. Guide grooves are provided on both sides of the guide groove slide. The pressure rod is disposed through a corresponding guide groove. When the slanted groove slide and the guide groove slide move together, the pressure rod moves closer to or away from the fixture of the corresponding assembly station. When the slanted groove slide and the guide groove slide move relative to each other, the ends of the two pressure rods that are close to the fixture move closer to or away from each other. The pressing assembly also includes a pressure-stabilizing cylinder disposed above the clamp. When the end of the pressing rod near the clamp moves closer to each other, the output end of the pressure-stabilizing cylinder extends out and abuts against the top of the knob switch of the clamp.

[0011] With the above-mentioned further configuration, the pressing assembly realizes the two actions of advancing and retracting the pressing rod and opening and closing through the combined movement of two sliders. It has a compact structure and direct driving force, and can press the knob switch assembly simultaneously from both sides, so that the lateral buckles are evenly locked by force, avoiding the deviation or damage caused by pressing from one side.

[0012] A further feature of the present invention is that the knob assembly feeding device includes a knob clamping device for clamping the knob assembly and a knob displacement assembly for moving the knob clamping device; both the knob clamping device and the base clamping device are cylinder grippers; both the base displacement assembly and the knob displacement assembly include a first horizontal drive unit, a second horizontal drive unit, and a vertical drive unit; the first horizontal drive unit includes a first drive member and a first lead screw nut assembly driven by the first drive member; the nut of the first lead screw nut assembly is integrally or fixedly connected to a first slider; the first horizontal drive unit is mounted on a frame; the second horizontal drive unit includes a second drive member and a second lead screw nut assembly driven by the second drive member; the nut of the second lead screw nut assembly is integrally or fixedly connected to a second slider; the second horizontal drive unit is mounted on the first slider. The vertical drive unit is mounted on the second slider. The knob gripping device and the base gripping device are each driven by a vertical drive unit to move in the vertical direction.

[0013] With the above-mentioned further configuration, both the knob displacement component and the base displacement component are driven by a three-axis lead screw and nut pair, which has high positioning accuracy and smooth movement, and can adapt to the assembly requirements of knob switches of different specifications; at the same time, the contact and base clamping device are integrated on the same vertical slider, which ensures the coaxiality of the timing of the pre-pressing and pressing actions and simplifies the control logic.

[0014] A further feature of the present invention is that the clamping assembly includes a clamping and stabilizing device for clamping the portion of the knob assembly located below the clamp, and a clamping drive for moving the clamping and stabilizing device closer to or away from the clamp, wherein the clamping and stabilizing device is a cylinder gripper.

[0015] With the above-mentioned further configuration, the clamping and stabilizing device can quickly extend into and clamp the neck of the knob assembly after the contact is pressed down, effectively preventing the rotor from springing back; it can also withdraw in time after pressing to avoid interfering with the rotation of the indexing plate, ensuring reliable operation and a compact structure.

[0016] A further feature of the present invention is that the clamping drive component is a telescopic cylinder, a guide rail seat is fixedly mounted on one side of the clamping drive component, a transmission slider is slidably mounted on the guide rail seat, and the output end of the clamping drive component and the clamping stabilizing device are both fixed relative to the transmission slider. With the above-mentioned further configuration, the telescopic cylinder, in conjunction with the guide rail slider mechanism, is low in cost and moves smoothly, ensuring the straightness of the clamping and stabilizing device's advance and retreat, avoiding damage to the knob assembly due to shaking, and facilitating maintenance.

[0017] A further feature of the present invention is that the feeding device includes a feeding horizontal drive unit mounted on the frame, the feeding horizontal drive unit includes a fourth drive member and a fourth lead screw nut pair driven by the fourth drive member, and the nut of the fourth lead screw nut pair is integrally or fixedly connected to the feeding horizontal slider. The horizontal slider for feeding is provided with a first vertical drive unit and a second vertical drive unit arranged in parallel. The first vertical drive unit includes a fifth drive component and a fifth lead screw and nut assembly driven by the fifth drive component. The nut of the fifth lead screw and nut assembly is integrally or fixedly connected to a first feeding device. The second vertical drive unit includes a sixth drive member and a sixth lead screw and nut assembly driven by the sixth drive member. The nut of the sixth lead screw and nut assembly is integrally or fixedly connected to a second feeding device. It also includes a flipping device, wherein the first unloading device picks up the assembled knob switch from the fixture and transfers it to the flipping device, and the second unloading device simultaneously picks up the flipped knob switch from the flipping device.

[0018] With the above-mentioned further configuration, the feeding device uses a horizontal drive unit to drive two parallel vertical drive units, realizing continuous action of picking up, discharging and picking up. With the help of the flipping device, the orientation of the finished product can be adjusted, which provides convenience for subsequent inspection or packaging, and greatly improves the feeding efficiency and automation level.

[0019] A further feature of the present invention includes a conveyor belt, with the second unloading device clamping knob on the conveyor belt.

[0020] With the above-mentioned further settings, the conveyor belt automatically transports the assembled rotary switches to the next process or collection area, realizing the automation of finished product output and further reducing manual intervention.

[0021] A further feature of the present invention is that the indexing plate is provided with a first station, a second station, a third station and a fourth station in sequence along its circumference; the knob assembly feeding device corresponds to the first station and is used to place the knob assembly on the fixture. The base assembly feeding device corresponds to the second station and is used to press the base assembly onto the knob assembly; The pressing component corresponds to the third station and is used to apply lateral pressure to the rotary switch assembly; The unloading device corresponds to the fourth station and is used to remove the assembled rotary switch from the fixture.

[0022] By adopting the above-mentioned further settings, the assembly tasks are reasonably allocated through the four-station indexing plate. Each station works independently and in parallel, with a compact cycle time and no interference between them, which significantly improves the overall production efficiency of the machine and facilitates fault isolation and maintenance.

[0023] A further provision of the present invention: the flipping device includes a gripper for holding the circuit board and a rotary drive for driving the gripper to rotate.

[0024] With the above-mentioned further configuration, the flipping device can flip the assembled rotary switch 180°, which facilitates the inspection of the other side or subsequent assembly, thus expanding the applicability of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the base assembly feeding device in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the indexing plate and the feeding device in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the knob assembly feeding device in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the base clamping device in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the overall structure of the clamping component in a specific embodiment of the present invention; Figure 7 This is a schematic diagram of the overall structure of the pressing component in a specific embodiment of the present invention; Figure 8 This is a schematic diagram of the cooperation between the first slider and the second slider in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the indexing plate and the feeding device from another perspective in a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the overall structure of the clamp in a specific embodiment of the present invention.

[0026] In the diagram: 1. Frame; 2. Indexing plate; 21. Fixed base; 22. Rotary indexing ring; 3. Fixture; 4. Knob assembly feeding device; 41. Knob clamping device; 42. Knob displacement assembly; 5. Base assembly feeding device; 51. Base clamping device; 511. Contact; 52. Base displacement assembly; 6. Clamping assembly; 61. Clamping stabilizing device; 62. Clamping drive component; 621. Guide rail seat; 622. Transmission slider; 7. Pressing assembly; 70. Drive device; 71. Inclined slide; 72. Guide slide; 73. Inclined groove; 75. Pressure rod; 76. Guide groove; 77. Sliding seat; 78. Pressure stabilizing cylinder; 8. Unloading device; 81. Unloading horizontal drive unit; 811. Fourth Drive components; 812, fourth lead screw and nut pair; 813, horizontal unloading slider; 82, first vertical drive unit; 821, fifth drive component; 822, fifth slider; 823, first unloading device; 83, second vertical drive unit; 831, sixth drive component; 832, sixth slider; 833, second unloading device; 84, flipping device; 85, conveyor belt; 9, first horizontal drive unit; 91, first drive component; 92, first lead screw and nut pair; 93, first slider; 10, second horizontal drive unit; 101, second drive component; 102, second lead screw and nut pair; 103, second slider; 111, third drive component; 112, third lead screw and nut pair; 113, third slider. Detailed Implementation

[0027] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that in the description of this invention, all directional indications (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, in this invention, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0031] like Figure 1-10 As shown, this embodiment provides a fully automatic rotary switch snap-fit ​​device. The overall structure includes a frame 1, on which an indexing plate 2 is mounted. The indexing plate 2 consists of a fixed base 21 and a rotating indexing ring 22. The rotating indexing ring 22 is driven by a servo motor to rotate intermittently. Four assembly stations are evenly arranged along its circumference: the first station, the second station, the third station, and the fourth station. A fixture 3 is fixedly installed at each station. The upper surface of the fixture 3 is provided with a positioning groove that matches the shape of the rotary switch assembly. A through hole is opened at the bottom of the groove so that the knob of the rotary switch assembly can pass through downwards.

[0032] Knob assembly feeding device 4: Corresponding to the first station, it includes a knob displacement assembly 42 and a knob clamping device 41. The knob displacement assembly 42 is a three-axis linkage mechanism, including a first horizontal drive unit 9, a second horizontal drive unit 10, and a vertical drive unit 11. The first horizontal drive unit 9 includes a first drive member 91 and a first lead screw nut pair 92 driven by the first drive member 91. The nut of the first lead screw nut pair 92 is integrally or fixedly connected to a first slider 93. The first horizontal drive unit 9 is mounted on the frame 1. The first drive member 91 is a servo motor. The second horizontal drive unit 10 includes a second drive member 101 and a second lead screw nut pair 102 driven by the second drive member 101. The nut of the second lead screw nut pair 102 is integrally or fixedly connected to the second slider 103. The second horizontal drive unit 10 is mounted on the first slider 93. The second drive member 101 is a servo motor. The vertical drive unit 11 is mounted on the second slider 103; The vertical drive unit 11 is a cylinder, and its output end is fixedly connected to the knob clamping device 41, driving it to move in the vertical direction.

[0033] The knob gripping device 41 is a cylinder gripper. During operation, the knob displacement component 42 drives the knob gripping device 41 to move to the knob assembly feeding position, grips the knob assembly and moves it to the first working position, and places the knob assembly into the positioning groove of the fixture 3 for clamping and fixing, so that the knob passes through the through hole with the knob facing downward.

[0034] Base assembly loading device 5: Corresponding to the second station, it includes a base displacement assembly 52 and a base clamping device 51. The base displacement assembly 52 is the same as the knob displacement assembly 42, both consisting of a first horizontal drive unit 9, a second horizontal drive unit 10, and a vertical drive unit 11. The first horizontal drive unit 9 includes a first drive member 91 and a first lead screw nut pair 92 driven by the first drive member 91. The nut of the first lead screw nut pair 92 is integrally or fixedly connected to a first slider 93. The first horizontal drive unit 9 is mounted on the frame 1. The first drive member 91 is a servo motor. The second horizontal drive unit 10 includes a second drive member 101 and a second lead screw nut pair 102 driven by the second drive member 101. The nut of the second lead screw nut pair 102 is integrally or fixedly connected to the second slider 103. The second horizontal drive unit 10 is mounted on the first slider 93. The second drive member 101 is a servo motor. The vertical drive unit 11 includes a third drive component 111 and a third lead screw nut pair 112 driven by the third drive component 111. The nut of the third lead screw nut pair 112 is integrally or fixedly connected to a third slider 113. The vertical drive unit 11 is mounted on the second slider 103. The base clamping device 51 is fixedly mounted on the third slider 113. The vertical drive unit 11 at this location uses a motor and a lead screw and nut pair for transmission, resulting in higher precision. The base clamping device 51 is a cylinder gripper, and a contact 511 is fixedly connected to the cylinder body of the base clamping device 51 via a connecting plate. The contact 511 is located on one side of the base clamping device 51, below the second work station. A clamping assembly 6 is mounted on the frame 1. The clamping assembly 6 includes a clamping stabilizing device 61, a clamping drive component 62, a guide rail seat 621, and a transmission slider 622. The clamping stabilizing device 61 is a cylinder gripper, and the clamping drive component 62 is a telescopic cylinder. The cylinder of the clamping drive 62 is fixed on the frame 1, the guide rail seat 621 is fixed on one side of the clamping drive 62, the transmission slider 622 is slidably disposed on the guide rail seat 621, and the output end of the clamping drive 62 and the clamping stabilizing device 61 are both fixed on the transmission slider 622.

[0035] Assembly process at the second station: The base displacement assembly 52 drives the base clamping device 51 and the contact 511 to move to the base assembly feeding position. After clamping the base assembly, it moves to the top of the second station. First, the vertical drive unit 11 of the base displacement assembly 52 drives the contact 511 to descend. The contact 511 first contacts the knob assembly and presses it down to a horizontal position. Then, the clamping drive 62 extends and pushes the transmission slider 622 to move the clamping stabilizing device 61 to the bottom of the fixture 3. The clamping stabilizing device 61 closes and clamps the neck of the knob assembly from below to prevent the rotor from springing back. Next, the base displacement assembly 52 rises and releases the contact from the knob assembly. Then, the position is adjusted so that the base assembly contacts the knob assembly and is pressed down further, so that the buckles on the front and rear sides are pre-engaged. At this time, the buckles on the left and right sides are not yet locked. After that, the base clamping device 51 opens to release the base assembly. The vertical drive unit 11 drives the contact and the gripper to rise and reset. The clamping stabilizing device 61 opens and exits.

[0036] Pressing assembly 7: Corresponding to the third station, it is set on the fixed base 21. The pressing assembly 7 includes a slanted slide 71, a guide slide 72, two driving devices 70, two slanted grooves 73, two transmission pins, two pressure rods 75, and a guide groove 76. Among them, the driving device 70 is a cylinder. The guide slide 72 is slidably set on the sliding seat 77 of the fixed base 21, and the slanted slide 71 is slidably set on the guide slide 72. The output ends of the two driving devices 70 are fixedly connected to the slanted slide 71 and the guide slide 72, respectively. The slanted slide 71 has symmetrical openings. The device has two inclined grooves 73 that are tilted relative to the direction of movement, forming an "eight" shape. A transmission pin is slidably installed in each inclined groove 73, and the transmission pin is rotatably connected to the middle of the pressure rod 75. Guide grooves 76 are provided on both sides of the guide groove slide 72, and the pressure rod 75 passes through the guide grooves 76 with its free end facing the clamp 3. The pressing assembly 7 also includes a pressure stabilizing cylinder 78 installed above the clamp 3. The pressure stabilizing cylinder 78 is fixedly installed on the frame 1 and is used to clamp the rotary switch with the pressure rod 75 while its output end abuts against the top of the rotary switch to prevent the rotary switch from disintegrating.

[0037] The assembly process at the third station: When the indexing plate 2 moves the assembly that has been pre-locked at the second station to the third station, the two drive devices 70 extend simultaneously, pushing the inclined slide 71 and the guide slide 72 together to move towards the fixture 3, so that the pressure rod 75 approaches the assembly; then the inclined slide 71 continues to move forward, that is, moves relative to the guide slide 72, the inclined groove 73 forces the transmission pin to slide axially inward, driving the pressure rod 75 to swing around the guide groove 76, and the free ends of the two pressure rods 75 move inward synchronously, pressing the assembly from the left and right sides. At the same time, the output end of the pressure stabilizing cylinder 78 extends and abuts against the top of the knob switch on the fixture 3, finally locking the buckles on the left and right sides. After pressure holding, the drive device 70 moves in the opposite direction, the output end of the pressure stabilizing cylinder 78 retracts, and the pressure rod 75 opens and resets.

[0038] The unloading device 8, corresponding to the fourth station, includes an unloading horizontal drive unit 81, a first vertical drive unit 82, a second vertical drive unit 83, a flipping device 84, and a conveyor belt 85. The unloading horizontal drive unit 81 includes a fourth drive component 811, a fourth lead screw and nut pair 812, and an unloading horizontal slider 813, which are mounted on the frame 1. The first vertical drive unit 82 and the second vertical drive unit 83 are fixed in parallel on the unloading horizontal slider 813. Both are cylinder-driven vertical motion units. Specifically, the first vertical drive unit 82 includes a fifth drive component 821 and a fifth slider 822 driven vertically by the output end of the fifth drive component 821. The fifth slider 822 is integrally or fixedly connected to the first unloading device 823. The second vertical drive unit 83 includes a sixth drive member 831 and a sixth slider 832 driven vertically by the output end of the sixth drive member 831. The sixth slider 832 is integrally or fixedly connected to the second feeding device 833. Two vertical drive units drive the first unloading device 823 and the second unloading device 833 to move vertically, respectively. Both the first unloading device 823 and the second unloading device 833 are cylinder grippers. The flipping device 84 is located on the side of the fourth station. The flipping device 84 includes grippers for holding the circuit board and a rotary drive component, which can flip the finished product 180°. The conveyor belt 85 is located on the other side of the flipping device 84.

[0039] The working process of the fourth station: The indexing plate 2 turns the assembled knob switch to the fourth station. The unloading horizontal drive unit 81 moves the first vertical drive unit 82 to directly above the clamp 3. The first vertical drive unit 82 drives the first unloading device 823 to descend, clamp the finished product and then rise. Then the unloading horizontal drive unit 81 moves and moves the first unloading device 823 to above the flipping device 84, placing the finished product on the flipping device 84. The flipping device 84 flips the finished product 180°. At the same time, the second unloading device 833 of the second vertical drive unit 83 has moved to above the flipping device 84, clamps the flipped finished product, and then moves it to above the conveyor belt 85, placing the finished product on the conveyor belt 85 for output. The two vertical drive units work alternately or synchronously to achieve efficient unloading.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotary switch snap-fit ​​pressing device, comprising a frame (1), wherein the frame (1) is provided with an indexing plate (2) for assembling rotary switches and a rotary switch assembly feeding device (4) for driving rotary switches to the indexing plate (2), wherein the indexing plate (2) is fixedly provided with a plurality of clamps (3) for clamping rotary switches along its circumference; characterized in that: It also includes a base assembly loading device (5), which is used to clamp the base assembly and press it onto the knob assembly on the clamp (3). The base assembly feeding device (5) includes a base clamping device (51) for clamping the base assembly and a base displacement assembly (52) for moving the base clamping device (51). The base clamping device (51) is fixedly provided with a contact (511). The clamp (3) has a positioning groove that matches the shape of the knob assembly. The bottom of the positioning groove is provided with a through hole for the knob to pass through downwards. The frame (1) is provided with a clamping assembly (6) for clamping the part of the knob assembly located below the clamp (3). When the contact (511) abuts against the knob assembly, the clamping assembly (6) clamps the knob assembly. Before the base clamping device (51) releases the base assembly, the base assembly feeding device (5) drives the base assembly to press onto the knob assembly. The frame (1) is also provided with a feeding device (8) for removing the assembled rotary switch from the fixture (3). The indexing plate (2) includes a fixed base (21) and a rotating indexing ring (22) rotatably disposed around the fixed base (21). The clamp (3) is fixedly disposed on the rotating indexing ring (22). A pressing assembly (7) is provided on the fixed base (21). The pressing assembly (7) includes a sloping groove slide (71) and a guide groove slide (72) that are linearly slidable relative to the fixed base (21) in the same direction. The pressing assembly (7) also includes two driving devices (70) that drive the sloping groove slide (71) and the guide groove slide (72) to move respectively. The driving devices (70) are fixedly arranged on the fixed base (21). The sloping groove slide (71) is provided with two sloping grooves (73) that are inclined to its own direction of movement. The two sloping grooves (73) are connected by the sloping groove slide (71) to move. The two inclined slots (73) are symmetrically arranged in the direction of movement. A transmission pin is slidably arranged in each of the two inclined slots (73). Each transmission pin is rotatably connected to a pressure rod (75). The guide slot slide (72) has guide slots (76) on both sides. The pressure rod (75) passes through a guide slot (76). When the inclined slot slide (71) and the guide slot slide (72) move together, the pressure rod (75) moves closer to or away from the fixture (3) of the corresponding assembly station. When the inclined slot slide (71) and the guide slot slide (72) move relative to each other, the ends of the two pressure rods (75) that are close to the fixture (3) move closer to or away from each other. The pressing assembly (7) also includes a pressure-stabilizing cylinder (78) disposed above the clamp (3). When the end of the pressing rod (75) near the clamp (3) moves closer to each other, the output end of the pressure-stabilizing cylinder (78) extends out and abuts against the top of the knob switch of the clamp (3).

2. The rotary switch snap-fitting device according to claim 1, characterized in that: The knob assembly feeding device (4) includes a knob clamping device (41) for clamping the knob assembly and a knob displacement assembly (42) for moving the knob clamping device (41). Both the knob gripping device (41) and the base gripping device (51) are cylinder grippers; The base displacement assembly (52) and the knob displacement assembly (42) both include a first horizontal drive unit (9), a second horizontal drive unit (10) and a vertical drive unit (11). The first horizontal drive unit (9) includes a first drive member (91) and a first lead screw nut pair (92) driven by the first drive member (91). The nut of the first lead screw nut pair (92) is integrally or fixedly connected to a first slider (93). The first horizontal drive unit (9) is mounted on the frame (1). The second horizontal drive unit (10) includes a second drive member (101) and a second lead screw nut pair (102) driven by the second drive member (101). The nut of the second lead screw nut pair (102) is integrally or fixedly connected to a second slider (103). The second horizontal drive unit (10) is mounted on the first slider (93). The vertical drive unit (11) is mounted on the second slider (103); The knob gripping device (41) and the base gripping device (51) are each driven by a vertical drive unit (11) to move in the vertical direction.

3. The rotary switch snap-fitting device according to claim 1, characterized in that: The clamping assembly (6) includes a clamping stabilizing device (61) for clamping the portion of the knob assembly located below the clamp (3) and a clamping drive (62) for moving the clamping stabilizing device (61) closer to or away from the clamp (3). The clamping stabilizing device (61) is a cylinder gripper.

4. The rotary switch snap-fitting device according to claim 3, characterized in that: The clamping drive (62) is a telescopic cylinder. A guide rail seat (621) is fixedly provided on one side of the clamping drive (62). A transmission slider (622) is slidably provided on the guide rail seat (621). The output end of the clamping drive (62) and the clamping stabilizing device (61) are both fixed relative to the transmission slider (622).

5. The rotary switch snap-fitting device according to claim 1, characterized in that: The feeding device (8) includes a feeding horizontal drive unit (81) mounted on the frame (1). The feeding horizontal drive unit (81) includes a fourth drive member (811) and a fourth lead screw nut pair (812) driven by the fourth drive member (811). The nut of the fourth lead screw nut pair (812) is integrally or fixedly connected to the feeding horizontal slider (813). The material feeding horizontal slider (813) is provided with a first vertical drive unit (82) and a second vertical drive unit (83) arranged in parallel. The first vertical drive unit (82) includes a fifth drive member (821) and a fifth slider (822) driven vertically by the output end of the fifth drive member (821). The fifth slider (822) is integrally or fixedly connected to the first feeding device (823). The second vertical drive unit (83) includes a sixth drive member (831) and a sixth slider (832) driven vertically by the output end of the sixth drive member (831). The sixth slider (832) is integrally or fixedly connected to the second feeding device (833). It also includes a flipping device (84), in which the first unloading device (823) picks up the assembled knob switch from the fixture (3) and transfers it to the flipping device (84), and the second unloading device (833) simultaneously picks up the flipped knob switch from the flipping device (84).

6. The rotary switch snap-fitting device according to claim 5, characterized in that: It also includes a conveyor belt (85), and the second unloading device (833) has a gripping knob on the conveyor belt (85).

7. The rotary switch snap-fitting device according to claim 1, characterized in that: The indexing plate (2) is provided with a first station, a second station, a third station and a fourth station in sequence along its circumference; the knob assembly feeding device (4) corresponds to the first station and is used to place the knob assembly on the fixture (3); The base assembly feeding device (5) corresponds to the second station and is used to press the base assembly onto the knob assembly; The pressing component (7) corresponds to the third station and is used to apply lateral pressure to the rotary switch assembly; The unloading device (8) corresponds to the fourth station and is used to remove the assembled rotary switch from the fixture (3).

8. The rotary switch snap-fitting device according to claim 5, characterized in that: The flipping device (84) includes a gripper for holding a rotary switch and a rotary drive for driving the gripper to rotate.

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