Automatic assembling equipment for switch key of dental three-purpose gun

Abstract

This application discloses an automatic assembly device for the switch button of a dental three-way gun, relating to the field of dental three-way gun assembly. It achieves automated assembly of the switch button, improving assembly efficiency. The station transfer device includes a horizontally rotatable turntable and multiple tooling fixtures evenly arranged along the outer circumference of the turntable. The turntable drives the tooling fixtures to sequentially rotate to a first, second, third, fourth, fifth, and sixth station arranged along the outer circumference of the turntable. A loading device inverts the button body onto the tooling fixture at the first station. A first assembly device slides a sleeve onto the button body on the tooling fixture at the second station. A second assembly device slides a first sealing ring onto the sleeve on the tooling fixture at the third station. A third assembly device slides a second sealing ring onto the button body on the tooling fixture at the fourth station. A fourth assembly device engages a retaining ring with the button body on the tooling fixture at the fifth station. A unloading device unloads the switch button from the tooling fixture at the sixth station.

Description

Technical Field

[0001] This application relates to the field of dental three-way gun assembly technology, and in particular to an automatic assembly device for the switch button of a dental three-way gun. Background Technology

[0002] A dental three-way gun (or three-way spray gun) is a cleaning tool used in dental oral treatment, capable of spraying water for rinsing, air drying, and water mist into the patient's mouth. In the structure of a dental three-way gun, the switch button includes a button body (or pressing valve body), a retaining spring, a sliding sleeve, a first sealing ring, and a second sealing ring. One end of the button body is the pressing part. The sliding sleeve, the first sealing ring, the second sealing ring, and the retaining spring are sequentially installed from the other end of the button body. The sliding sleeve is fitted onto the button body, the first sealing ring is fitted onto the sliding sleeve, and the second sealing ring is fitted onto the button body and abuts against the sliding sleeve. The retaining spring is engaged with the button body to limit the second sealing ring between the sliding sleeve and the retaining spring. In related technologies, the various parts of the switch button are assembled manually one by one. However, this assembly process involves high labor input, low work efficiency, increased costs, and reduced benefits. Summary of the Invention

[0003] This application proposes an automatic assembly device for the switch buttons of a dental three-way gun, which realizes the automated assembly of the switch buttons of the dental three-way gun and improves the assembly efficiency.

[0004] This application provides an automatic assembly device for the switch button of a dental three-way gun. The switch button includes a button body, a sliding sleeve, a first sealing ring, a second sealing ring, and a retaining spring. The automatic assembly device for the switch button of the dental three-way gun includes: A workstation transfer device includes a horizontally rotatable turntable and multiple tooling fixtures for positioning and fixing the button body. The multiple tooling fixtures are disposed on the turntable and evenly arranged along the outer periphery of the turntable. The turntable has a first workstation, a second workstation, a third workstation, a fourth workstation, a fifth workstation, and a sixth workstation arranged sequentially along its outer periphery. The turntable is configured to drive the tooling fixtures to rotate sequentially to the first workstation, the second workstation, the third workstation, the fourth workstation, the fifth workstation, and the sixth workstation. A feeding device is used to invert the button body onto the tooling fixture at the first station; A first assembly device is used to mount the sliding sleeve onto the tooling fixture at the second workstation for the button body; The second assembly device is used to fit the first sealing ring onto the sliding sleeve of the tooling fixture at the third station; The third assembly device is used to fit the second sealing ring onto the tooling fixture at the fourth station of the button body; The fourth assembly device is used to snap the snap ring onto the button body on the tooling fixture at the fifth station to assemble the switch button; The unloading device is used to unload the switch button from the tooling fixture at the sixth station.

[0005] The automatic assembly device for the switch button of the dental three-way gun according to the embodiments of this application has at least the following beneficial effects: During the operation of the station transfer device, the turntable can drive multiple tooling fixtures to rotate horizontally, so that the tooling fixtures can sequentially reach the first station, the second station, the third station, the fourth station, the fifth station, and the sixth station; when the tooling fixture rotates to the first station, the loading device transfers the button body in an inverted position to the tooling fixture located at the first station to complete the button body loading work; when the tooling fixture rotates to the second station, the first assembly device transfers the sliding sleeve to the tooling fixture located at the second station, so that the sliding sleeve is fitted downwards onto the button body on the tooling fixture to complete the sliding sleeve assembly work; when the tooling fixture rotates to the third station, the second assembly device transfers the first sealing ring. The first sealing ring is mounted downwards onto the sliding sleeve on the tooling fixture at the third station, completing the assembly of the first sealing ring. When the tooling fixture rotates to the fourth station, the third assembly device transfers the second sealing ring to the tooling fixture at the fourth station, mounting the second sealing ring downwards onto the button body on the tooling fixture, completing the assembly of the second sealing ring. When the tooling fixture rotates to the fifth station, the fourth assembly device transfers the retaining spring to the tooling fixture at the fifth station, engaging the retaining spring with the button body on the tooling fixture, thus assembling the button body, sliding sleeve, first sealing ring, second sealing ring, and retaining spring together into a switch button. When the tooling fixture rotates to the sixth station, the unloading device removes the switch button from the tooling fixture at the sixth station, completing the unloading of the switch button.

[0006] Therefore, the automatic assembly equipment for the switch buttons of a dental three-way gun can complete the work of button body feeding, slide assembly, first sealing ring assembly, second sealing ring assembly, snap ring assembly, and switch button unloading at the same time, realizing the automated assembly of switch buttons, reducing manpower input, improving the assembly efficiency of switch buttons, and helping to reduce assembly costs and improve product benefits.

[0007] In some embodiments of this application, the tooling fixture includes: The tooling plate has an upward-facing positioning groove, which is configured to adapt to and contact the outer peripheral surface of the pressing part of the button body so that the pressing part is placed in the positioning groove. The tooling plate is connected to the turntable. The limiting plate is slidably connected to the tooling plate; A first spring, with its two ends connected to the tooling plate and the limiting plate respectively, is configured to drive the limiting plate to move toward the positioning groove and abut against the pressing part, so that the limiting plate and the positioning groove together form a limiting structure for positioning and fixing the button body.

[0008] In some embodiments of this application, the feeding device includes: A first vibrating feeding mechanism is used to sequentially output the button body, and the first vibrating feeding mechanism is provided with a first feeding position; A feeding mechanism is used to lift the button body of the first feeding position upwards; The first gripping mechanism includes a first rotary drive and at least one first gripper. The first gripper is arranged in a circumferential manner on the output end of the first rotary drive. The first gripper is configured to grip or release the button body. The first rotary drive is configured to drive the first gripper to transfer the button body that has been lifted to the tooling plate of the first station, so that the pressing part is located in the positioning groove. A first pushing mechanism is used to push the limiting plate of the first station to move away from the positioning groove so that the pressing part is placed in the positioning groove. The first pushing mechanism is configured to automatically reset after the button body is inverted on the tooling plate of the first station so that the first spring drives the limiting plate to move closer to the positioning groove.

[0009] In some embodiments of this application, the first assembly apparatus includes: The feeding seat is provided with a horizontally extending discharge channel and a feeding channel and a guiding channel that are both connected vertically. The lower end of the feeding channel is connected to the discharge channel. The guiding channel is configured to be vertically opposite to the positioning groove on the tooling plate of the second station, so as to guide the sliding sleeve downward to the button body. The second vibrating feeding mechanism is used to sequentially output the sliding sleeve, and the second vibrating feeding mechanism is configured to transport the sliding sleeve into the feeding channel; The first feeding mechanism includes a first linear drive and a feeding plate. The feeding plate has a positioning hole that runs through the top and bottom and is used to accommodate the sliding sleeve. The first linear drive is configured to drive the feeding plate to move horizontally along the discharge channel so that the feeding plate receives the sliding sleeve falling from the loading channel and conveys it to the guide channel. A pushing mechanism is used to push the sliding sleeve inside the positioning hole down along the material guide channel when the positioning hole is aligned vertically with the material guide channel, so that the sliding sleeve is fitted onto the button body.

[0010] In some embodiments of this application, the second assembly apparatus includes: The third vibrating feeding mechanism is used to sequentially output the first sealing ring, and the third vibrating feeding mechanism is provided with a third feeding position; A sealing ring assembly mechanism is used to transfer the first sealing ring from the third loading position to the tooling plate of the third station, and to fit the first sealing ring onto the sliding sleeve.

[0011] In some embodiments of this application, the sealing ring assembly mechanism includes: The sealing ring opening mechanism includes a plurality of opening claws arranged circumferentially and movably, wherein the plurality of opening claws are configured to open outward to support the first sealing ring inward. The first adsorption robot is used to vacuum adsorb the first sealing ring at the third loading position and transfer it to the sealing ring spreading mechanism so that the first sealing ring is placed around the periphery of the plurality of spreading claws. An assembly robot includes a first motion unit, an outer sleeve, an inner pin, and a second spring, all extending vertically. The upper end of the outer sleeve is connected to the output end of the first motion unit. The outer sleeve is fitted onto the inner pin and the second spring. The outer sleeve slides vertically and horizontally with the inner pin. The lower end of the inner pin has a stepped clearance hole with an opening facing downwards, allowing the button body and the sliding sleeve to extend into it. The two ends of the second spring abut against the outer sleeve and the inner pin, respectively, to drive the inner pin to protrude downwards beyond the outer sleeve. The first motion unit is configured to drive the inner pin to move to the inner periphery of a plurality of spreading claws, so that the sealing ring spreading mechanism fits the first sealing ring onto the inner pin. The first motion unit is also configured to drive the outer sleeve to move downwards relative to the sliding sleeve, so that the inner pin retracts into the outer sleeve when it abuts against the sliding sleeve, while the outer sleeve presses down on the first sealing ring on the inner pin and fits it onto the sliding sleeve.

[0012] In some embodiments of this application, the third assembly device includes: The fourth vibrating feeding mechanism is used to sequentially output the second sealing ring, and the fourth vibrating feeding mechanism is provided with a fourth feeding position; The second adsorption robot is used to vacuum adsorb the second sealing ring at the fourth loading position and transfer it to the tooling plate at the fourth station so that the second sealing ring is fitted onto the button body.

[0013] In some embodiments of this application, the fourth assembly device includes: The fifth vibrating feeding mechanism is used to sequentially output the retaining rings, and the fifth vibrating feeding mechanism is provided with a fifth feeding position; The second feeding mechanism includes a second linear drive and a feeding seat. The feeding seat has an upward-opening receiving groove and a clearance groove located below the receiving groove. The receiving groove is configured to receive the retaining spring, and the clearance groove is configured to avoid the button body. The receiving groove and the clearance groove are U-shaped when viewed vertically and extend through the side of the feeding seat near the positioning groove. The clearance groove extends vertically and communicates with the receiving groove. The second linear drive is configured to drive the feeding seat to move horizontally so that the feeding seat receives the retaining spring that falls from the fifth loading position and horizontally engages the retaining spring with the button body.

[0014] In some embodiments of this application, the fourth assembly device further includes: The positioning mechanism includes a third linear drive and a positioning block. The positioning block and the feed seat are arranged opposite to each other along the moving direction of the feed seat. The third linear drive is configured to drive the positioning block to move along the moving direction of the feed seat, so that the positioning block presses and positions the button body when the snap ring is engaged with the button body, so that the button body remains in a straight state.

[0015] In some embodiments of this application, the feeding device includes: The second material handling mechanism includes a second motion unit and a second gripper. The second gripper is configured to grip or release the switch button, and the second motion unit is configured to drive the second gripper to remove the switch button from the tooling plate of the sixth station. The second pushing mechanism is used to push the limiting plate of the sixth station to move away from the positioning groove so that the switch button can leave the tooling plate. The second pushing mechanism is configured to automatically reset after the switch button is unloaded so that the first spring drives the limiting plate to move closer to the positioning groove.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the switch button on a dental three-way gun; among them, Figure 1 (a) is a schematic diagram of the assembly structure of the switch button. Figure 1 (b) is a schematic diagram of the disassembled structure of the switch button; Figure 2 This is a top view of the automatic assembly device for the switch button of a dental three-way gun provided according to the embodiments of this application; Figure 3 This is a perspective view of an automatic assembly device for the switch button of a dental three-way gun according to an embodiment of this application; Figure 4 This is a schematic diagram of the tooling fixture provided according to the embodiments of this application; Figure 5 This is a schematic diagram of the tooling fixture provided according to an embodiment of this application from another perspective; Figure 6 This is a perspective view of the feeding device provided according to an embodiment of this application; Figure 7 This is a perspective view of the first assembly device provided according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of the first feeding mechanism and the pushing mechanism provided according to the embodiments of this application; Figure 9 This is a perspective view of the second assembly device provided according to an embodiment of this application; Figure 10 This is a perspective view of the sealing ring opening mechanism provided according to an embodiment of this application; Figure 11 This is a cross-sectional schematic diagram of the assembly head provided according to an embodiment of this application; Figure 12 This is a perspective view of the third assembly device provided according to an embodiment of this application; Figure 13 This is a perspective view of the fourth assembly device provided according to an embodiment of this application; Figure 14 This is a perspective view of the second feeding mechanism provided according to an embodiment of this application; Figure 15 This is a perspective view of the feeding device provided according to an embodiment of this application.

[0018] Reference numerals: 110, button body; 111, pressing part; 120, sliding sleeve; 130, first sealing ring; 140, second sealing ring; 150, retaining ring; 210. Turntable; 220. Tooling fixture; 221. Tooling plate; 222. Positioning groove; 223. Limiting plate; 224. U-shaped opening; 225. First spring; 226. Slide groove; 227. Sliding block; 300. Feeding device; 310. First vibrating feeding mechanism; 321. First rotary drive component; 322. First gripper; 331. Push rod; 332. Push cylinder; 341. First push block; 342. First cylinder; 400. First assembly device; 410. Second vibrating feeding mechanism; 421. Feeding plate; 422. First linear drive component; 423. Positioning hole; 431. Push rod; 432. Push cylinder; 440. Loading seat; 441. Loading channel; 442. Discharge channel; 443. Guide channel; 500. Second assembly device; 510. Third vibrating feeding mechanism; 521. First suction head; 522. First lifting cylinder; 530. Assembly head; 531. Outer sleeve; 532. Inner pin; 533. Step clearance hole; 534. Second spring; 535. Cavity; 540. Second lifting cylinder; 550. First translation cylinder; 560. Sealing ring opening mechanism; 561. Opening claw; 600. Third assembly device; 610. Fourth vibrating feeding mechanism; 621. Second suction head; 622. Third lifting cylinder; 623. Second translation cylinder; 700. Fourth assembly device; 710. Fifth vibrating feeding mechanism; 721. Feeding seat; 722. Second linear drive; 723. Receiving groove; 724. Clearance groove; 731. Positioning block; 732. Third linear drive; 800. Feeding device; 811. Second gripper; 812. Fourth lifting cylinder; 813. Third translation cylinder; 821. Second push block; 822. Second cylinder; 910. Testing agency; 920. Frame. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] The following is for reference. Figures 1 to 15 This application describes an automatic assembly device for a dental three-way gun with a switch button, according to an embodiment of the present application.

[0023] like Figures 1 to 15 As shown, the automatic assembly device for the switch button of the dental three-way gun according to the embodiment of this application can be applied to the assembly of the switch button of the dental three-way gun, realize the automated assembly of the switch button of the dental three-way gun, improve assembly efficiency, and reduce costs.

[0024] like Figure 1 (a) and Figure 1 As shown in (b), the switch button structure includes a button body 110, a sliding sleeve 120, a first sealing ring 130, a second sealing ring 140, and a retaining spring 150. One end of the button body 110 is configured as a pressing part 111, which is generally circular. The sliding sleeve 120, the first sealing ring 130, and the second sealing ring 140 are fitted onto the other end of the button body 110. The retaining spring 150 is engaged with the other end of the button body 110, so that the sliding sleeve 120 is fitted onto the button body 110. The first sealing ring 130... The first sealing ring 130 is set on the slide sleeve 120. The second sealing ring 140 is set on the button body 110. The second sealing ring 140 is located on the side of the slide sleeve 120 away from the pressing part 111. The second sealing ring 140 can abut against the slide sleeve 120. The retaining ring 150 is located on the side of the second sealing ring 140 away from the slide sleeve 120. The retaining ring 150 can limit the second sealing ring 140 to prevent the second sealing ring 140 from easily coming off the button body 110.

[0025] Understandably, the sliding sleeve 120 has an annular groove so that the first sealing ring 130 is disposed in the annular groove, thereby fixing the first sealing ring 130 relative to the sliding sleeve 120. The button body 110 has a retaining groove so that the retaining spring 150 is engaged in the retaining groove, thereby fixing the retaining spring 150 relative to the button body 110. The first sealing ring 130 and the second sealing ring 140 can be O-rings. In this embodiment, the inner diameter of the first sealing ring 130 is larger than the inner diameter of the second sealing ring 140. When the pressing part 111 is vertically downward, the button body 110 is in an inverted state, at which time the sliding sleeve 120, the first sealing ring 130, and the second sealing ring 140 can be fitted onto the button body 110 from top to bottom.

[0026] like Figure 2 and Figure 3As shown, the automatic assembly equipment for the switch button of the dental three-way gun includes a frame 920, a station transfer device, a feeding device 300, a first assembly device 400, a second assembly device 500, a third assembly device 600, a fourth assembly device 700, and a discharging device 800. The station transfer device, the feeding device 300, the first assembly device 400, the second assembly device 500, the third assembly device 600, the fourth assembly device 700, and the discharging device 800 are all mounted on the frame 920.

[0027] like Figure 2 and Figure 3 As shown, the workstation transfer device includes a second rotary drive, a turntable 210, and multiple tooling fixtures 220. The second rotary drive includes a motor, a reducer, and a transmission structure. The motor's output shaft is connected to the input end of the transmission structure via the reducer, and the output end of the transmission structure is connected to the turntable 210. The transmission structure can be a belt drive or a coupling, etc. The turntable 210 is horizontally positioned and has a circular plate design. The central axis of the turntable 210 extends vertically. The turntable 210 can be mounted on the frame 920 via bearings and can rotate horizontally around its central axis under the drive of the second rotary drive. The second rotary drive is located below the turntable 210. The turntable 210 has a first workstation, a second workstation, a third workstation, a fourth workstation, a fifth workstation, and a sixth workstation arranged sequentially along its outer circumference. It is understandable that the first, second, third, fourth, fifth, and sixth workstations can be evenly or unevenly arranged along the circumference of the turntable 210.

[0028] The tooling fixture 220 is used for positioning and fixing the button body 110 to facilitate the assembly of the sliding sleeve 120, the first sealing ring 130, the second sealing ring 140, and the retaining ring 150. Multiple tooling fixtures 220 are fixedly mounted on the turntable 210. The tooling fixtures 220 can be bolted to the periphery of the turntable 210, positioned above it, and evenly distributed along the outer periphery of the turntable 210. The turntable 210 is configured to drive the tooling fixtures 220 sequentially to the first, second, third, fourth, fifth, and sixth positions under the drive of the second rotary drive component, thereby sequentially completing the loading of the button body 110, the assembly of the sliding sleeve 120, the assembly of the first sealing ring 130, the assembly of the second sealing ring 140, the assembly of the retaining ring 150, and the unloading of the switch button.

[0029] Understandably, the specific number of tooling fixtures 220 can be determined according to actual needs, with multiple tooling fixtures 220 arranged in a circle around the central axis of the turntable 210. The second rotary drive can drive the turntable 210 to rotate by the same angle each time, ensuring that the first, second, third, fourth, fifth, and sixth stations all have corresponding tooling fixtures 220, so that the work of feeding the button body 110, assembling the sliding sleeve 120, assembling the first sealing ring 130, assembling the second sealing ring 140, assembling the snap ring 150, and unloading the switch button can be carried out simultaneously. When one of the fixtures 220 on the turntable 210 rotates to the first station, the turntable 210 stops rotating to ensure that the fixture 220 is in a stable and stationary state. After the work of feeding the button body 110, assembling the sliding sleeve 120, assembling the first sealing ring 130, assembling the second sealing ring 140, assembling the snap ring 150, and unloading the switch button is completed, the turntable 210 rotates again, causing the fixture 220 to rotate to the next station.

[0030] In a specific embodiment, such as Figure 4 and Figure 5 As shown, the tooling fixture 220 includes a tooling plate 221, a limiting plate 223, and a first spring 225.

[0031] The tooling plate 221 has an upward-facing positioning groove 222, which is configured to fit and contact the outer peripheral surface of the pressing part 111 of the button body 110, so that the pressing part 111 is placed within the positioning groove 222. The tooling plate 221 is connected to the turntable 210. It can be understood that the shape and size of the positioning groove 222 are consistent with the shape and size of the pressing part 111. The pressing part 111 of the button body 110 is circular, therefore, the positioning groove 222 adopts a cylindrical structure design, and the depth of the positioning groove 222 is the same as the thickness of the pressing part 111. The button body 110 can move in and out of the positioning groove 222 in the vertical direction. When the button body 110 is placed upside down on the tooling plate 221, the outer peripheral surface of the pressing part 111 is in contact with the inner peripheral surface of the positioning groove 222, and the lower surface of the pressing part 111 is in contact with the bottom surface of the positioning groove 222. The positioning groove 222 can provide support and positioning for the pressing part 111, ensuring that the button body 110 is in a stable upside-down state on the tooling plate 221.

[0032] In this embodiment, one end of the tooling plate 221 along its length is bolted to the turntable 210, and the other end of the tooling plate 221 along its length protrudes beyond the turntable 210. The length of the tooling plate 221 extends radially along the turntable 210, and a positioning groove 222 is provided at the other end of the tooling plate 221 along its length. Figure 2 As shown.

[0033] The limiting plate 223 is slidably connected to the tooling plate 221, allowing the limiting plate 223 to move horizontally relative to the tooling plate 221. In this embodiment, the length direction of the limiting plate 223 is consistent with the length direction of the tooling plate 221. The tooling plate 221 is provided with a T-shaped limiting groove that extends along the length direction of the tooling plate 221. The limiting plate 223 is adapted to the limiting groove, allowing the limiting plate 223 to move linearly along the limiting groove. The limiting plate 223 and the limiting groove are located on the side of the positioning groove 222 near the central axis of the turntable 210. Moreover, the end of the limiting plate 223 near the positioning groove 222 is provided with a U-shaped opening 224. The U-shaped opening 224 can avoid the upper part of the pressing part 111 of the button body 110, thereby increasing the contact area between the limiting plate 223 and the upper surface of the pressing part 111 and enhancing the limiting and fixing effect. Figure 4 As shown. Of course, it is not excluded that in other embodiments, the horizontal movement direction of the limiting plate 223 is the tangential direction of the turntable 210. The shape of the limiting plate 223 can be determined according to the actual design.

[0034] The two ends of the first spring 225 are connected to the tooling plate 221 and the limiting plate 223 respectively. The first spring 225 is configured to drive the limiting plate 223 to move toward the positioning groove 222 and drive the limiting plate 223 to abut against the pressing part 111 downward, so that the limiting plate 223 and the positioning groove 222 together form a limiting structure for positioning and fixing the button body 110.

[0035] It is understood that the limiting plate 223 has a first position and a second position. When the limiting plate 223 is in the first position, the first spring 225 is in a relatively extended state. At this time, the limiting plate 223 can limit the pressing part 111 in the positioning groove 222 in the vertical direction, preventing the pressing part 111 from easily detaching from the positioning groove 222. When the limiting plate 223 is in the second position, the second spring 534 is in a relatively compressed state. At this time, the limiting plate 223 will not contact the pressing part 111, so the button body 110 can be placed in the positioning groove 222 of the tooling plate 221. When the pressing part 111 of the button body 110 is placed in the positioning groove 222, the limiting plate 223 moves horizontally under the elastic force of the first spring 225 and moves to the first position, so that a part of the limiting plate 223 is above the pressing part 111 and in contact with the upper surface of the pressing part 111, so that the limiting plate 223 can limit the pressing part 111, thereby enabling the limiting plate 223 to cooperate with the positioning groove 222 to effectively fix the button body 110, ensuring that the button body 110 maintains a stable inverted state during assembly and will not tip over. When it is necessary to place the button body 110 on the tooling plate 221, an external force is applied to the limiting plate 223 to overcome the elastic force of the first spring 225, so that the limiting plate 223 moves from the first position to the second position, thereby releasing the limiting effect of the limiting plate 223. The number of first springs 225 is not limited to one.

[0036] In this embodiment, the length direction of the first spring 225 is the same as the length direction of the limiting plate 223. The limiting groove penetrates the upper surface of the tooling plate 221, facilitating the installation of the first spring 225 within the limiting groove. Both the limiting plate 223 and the tooling plate 221 are provided with grooves so that the end of the first spring 225 can be placed within the groove, allowing both ends of the first spring 225 to abut against the tooling plate 221 and the limiting plate 223 respectively. Figure 4As shown. Furthermore, the lower part of the tooling plate 221 is provided with a sliding groove 226, which runs vertically and communicates with the limiting groove. The length direction of the sliding groove 226 is consistent with the moving direction of the limiting plate 223. The sliding groove 226 can be a stepped groove, and it is located on the outer side of the turntable 210 along its radial direction. The lower part of the limiting plate 223 is provided with a sliding block 227, which is fixedly connected to the limiting plate 223. The sliding block 227 is adapted to the sliding groove 226, and its lower part protrudes beyond the sliding groove 226, allowing for sliding... Block 227 can move horizontally along the slide groove 226. At this time, block 227 acts as the force-bearing part of the limiting plate 223, and can move the limiting plate 223 away from the positioning groove 222 under external force. Block 227 can be a bearing and is mounted on the limiting plate 223 via a vertically extending connecting shaft. The slide groove 226 can limit the movement distance of block 227, thereby preventing excessive compression of the first spring 225 and ensuring that the first spring 225 remains in contact with the limiting plate 223. Figure 5 As shown. Of course, it is possible that the force-bearing part of the limiting plate 223 is located in other positions of the limiting plate 223.

[0037] like Figure 6 As shown, the feeding device 300 can be used to invert the button body 110 onto the tooling fixture 220 of the first station. In a specific embodiment, the structure of the feeding device 300 includes a first vibrating feeding mechanism 310, a top feeding mechanism, a first gripping mechanism, and a first pushing mechanism.

[0038] The first vibratory feeding mechanism 310 is used to sequentially output the button bodies 110. The first vibratory feeding mechanism 310 has a first feeding position, which allows the lifting mechanism to support the button bodies 110 located at the first feeding position, and simultaneously allows the first gripping mechanism to grip the supported button bodies 110. It can be understood that the first vibratory feeding mechanism 310 includes a vibratory feeder and a linear feeder (or linear vibrator). The vibratory feeder can sort and orient the button bodies 110, and the linear feeder can stably and linearly convey the button bodies 110 fed from the vibratory feeder. In this embodiment, the button bodies 110 at the first feeding position are in an upright position, that is, the pressing part 111 is vertically upward. The first vibratory feeding mechanism 310 is mounted on the frame 920.

[0039] The ejector mechanism is used to lift the button body 110 at the first loading position so that the first gripping mechanism can grasp the lifted button body 110. The ejector mechanism is mounted on the frame 920. In this embodiment, the ejector mechanism includes an ejector rod 331 and an ejector cylinder 332. The ejector rod 331 extends vertically and is located above the ejector cylinder 332, directly below the first loading position. The output end of the ejector cylinder 332 is connected to the lower end of the ejector rod 331. The ejector cylinder 332 can drive the ejector rod 331 to move upward so that the ejector rod 331 can contact and lift the button body 110 located at the first loading position. The height of the lifted button body 110 can be determined according to actual needs, as long as it meets the condition that the first gripping mechanism can grasp it.

[0040] The first gripping mechanism is mounted on the frame 920. This mechanism transfers the lifted button body 110 to the corresponding tooling fixture 220 at the first workstation, causing the button body 110 to be inverted in the positioning groove 222. The first gripping mechanism includes a first rotary drive 321 and at least one first gripper 322. The at least one first gripper 322 is circumferentially arranged on the output end of the first rotary drive 321, which is rotatable about a horizontally extending axis of rotation. The first gripper 322 is configured to grip or release the button body 110. The first rotary drive 321 is configured to drive the first gripper 322 to transfer the lifted button body 110 to the tooling plate 221 at the first workstation, so that the pressing portion 111 of the button body 110 is located within the positioning groove 222.

[0041] In this embodiment, there are two first grippers 322, arranged vertically opposite each other. The first rotary drive 321 is a rotary cylinder. The two first grippers 322 are fixedly connected to the rotary table of the rotary cylinder and arranged circumferentially. The two first grippers 322 are located between the first loading position and the first work station. When one of the first grippers 322 clamps and fixes the lifted button body 110, the other first gripper 322 can release the button body 110 onto the tooling fixture 220 of the first work station. Through the driving action of the rotary cylinder, the two first grippers 322 are simultaneously rotated 180° around the rotation center of the rotary cylinder, thereby switching the positions of the two first grippers 322. Therefore, by having the two first grippers 322 work simultaneously and alternately perform the clamping and releasing work of the button body 110, the loading efficiency of the button body 110 can be improved. It can be understood that the first gripper 322 is a pneumatic gripper, which can stably clamp the button body 110 with two claw fingers. Of course, it is not excluded that in other embodiments, the output end of the first rotary drive 321 may only have a first gripper 322.

[0042] A first pushing mechanism is mounted on the frame 920. This mechanism is used to push the limiting plate 223 of the first station away from the positioning groove 222, so that the pressing part 111 is placed within the positioning groove 222. The first pushing mechanism is configured to automatically reset after the button body 110 is inverted on the tooling plate 221 of the first station, so that the first spring 225 drives the limiting plate 223 to move closer to the positioning groove 222.

[0043] In this embodiment, the first pushing mechanism includes a first pushing block 341 and a first cylinder 342. The first pushing block 341 is located below the tooling fixture 220 of the first station. The output end of the first cylinder 342 is connected to the first pushing block 341. The first pushing block 341 and the sliding block 227 of the first station are arranged opposite to each other along the moving direction of the sliding block 227. Under the driving action of the first cylinder 342, the first pushing block 341 can push the sliding block 227 to move linearly during the movement, so that the limiting plate 223 can overcome the elastic force of the first spring 225 and move away from the positioning groove 222, so that the first gripping mechanism can place the button body 110 in the positioning groove 222 of the tooling fixture 220 in an inverted manner. After the button body 110 is loaded, the first cylinder 342 drives the first push block 341 to move in the opposite direction so that the first push block 341 automatically resets. At this time, the limiting plate 223 moves linearly under the elastic force of the first spring 225 and applies a limiting effect to the pressing part 111 of the button body 110, so that the button body 110 remains in an inverted state under the cooperation of the limiting plate 223 and the positioning groove 222, and can rotate together with the turntable 210 and the tooling fixture 220.

[0044] like Figure 7 and Figure 8 As shown, the first assembly device 400 can be used to mount the sliding sleeve 120 onto the tooling fixture 220 at the second station. In a specific embodiment, the structure of the first assembly device 400 includes a loading seat 440, a second vibration feeding mechanism 410, a first feeding mechanism, and a pushing mechanism.

[0045] The loading seat 440 is mounted on the frame 920. The loading seat 440 has a loading channel 441, a discharge channel 442, and a guide channel 443. The loading channel 441 and guide channel 443 are vertically connected, while the discharge channel 442 extends horizontally. The lower end of the loading channel 441 connects to the discharge channel 442. The guide channel 443 is located between the discharge channel 442 and the second station. The guide channel 443 is configured to be vertically aligned with the positioning groove 222 on the tooling plate 221 of the second station, guiding the sliding sleeve 120 downwards to the button body 110. It is understood that the specific shape design of the loading seat 440 can be determined according to actual needs. The feeding channel 441 allows the sliding sleeve 120 to pass through from top to bottom in an upright position and enter the discharge channel 442. The guiding channel 443 guides the sliding sleeve 120 so that it can move downward along the guiding channel 443 under the action of thrust and fit into the button body 110. In this embodiment, the feeding channel 441 and the guiding channel 443 are cylindrical, and the connection between the feeding channel 441 and the discharge channel 442 can be set as a second feeding position.

[0046] The second vibrating feeding mechanism 410 is mounted on the frame 920. The second vibrating feeding mechanism 410 is used to sequentially output sliding sleeves 120. The second vibrating feeding mechanism 410 is configured to convey the sliding sleeves 120 into the feeding channel 441. It is understood that the second vibrating feeding mechanism 410 includes a vibrating plate or a vibrating plate and a linear feeder. The second vibrating feeding mechanism 410 has a conveying channel, the end of which is connected to the upper end of the feeding channel 441. The sliding sleeves 120 are made of plastic, and the second vibrating feeding mechanism 410 can convey individual sliding sleeves 120 to the feeding channel 441 through the conveying channel.

[0047] The first feeding mechanism can be mounted on the frame 920 or the loading seat 440. The first feeding mechanism includes a first linear drive 422 and a feeding plate 421. The feeding plate 421 has a positioning hole 423, which extends vertically and can accommodate a sliding sleeve 120. The positioning hole 423 is a circular hole, and its inner diameter matches the maximum outer diameter of the sliding sleeve 120. The sliding sleeve 120 in the loading channel 441 can enter the positioning hole 423 from top to bottom. The feeding plate 421 is connected to the output end of the first linear drive 422. The first linear drive 422 is configured to drive the feeding plate 421 to move horizontally along the discharge channel 442, so that the feeding plate 421 receives the sliding sleeve 120 falling from the loading channel 441 and conveys it to the guide channel 443. In this embodiment, the feeding plate 421 is rectangular.

[0048] It is understandable that the first linear drive component 422 can be a telescopic cylinder. The feeding plate 421 has a first working position and a second working position. When the feeding plate 421 is in the first working position, part of the feeding plate 421 is located in the discharge channel 442, and the positioning hole 423 is vertically aligned with the feeding channel 441, so that the sliding sleeve 120 in the feeding channel 441 can accurately fall into the positioning hole 423. After the sliding sleeve 120 falls into the positioning hole 423, the first cylinder 342 drives the feeding plate 421 to move the sliding sleeve 120 to the second working position. At this time, the positioning hole 423 is aligned with the guide channel 443, and the lowermost sliding sleeve 120 in the feeding channel 441 will abut against the upper surface of the feeding plate 421. The lowermost sliding sleeve 120 is located in the second feeding position. At this time, the central axis of the sliding sleeve 120 extends in the vertical direction. The lowermost sliding sleeve 120 will stably fall into the positioning hole 423 when the positioning hole 423 is aligned with the feeding channel 441 again. The upper surface of the sliding sleeve 120 is higher than or flush with the upper end of the positioning hole 423.

[0049] The pushing mechanism can be installed on the frame 920 or the loading seat 440. When the positioning hole 423 is vertically aligned with the guide channel 443, the pushing mechanism pushes the sliding sleeve 120 inside the positioning hole 423 downwards along the guide channel 443, so that the sliding sleeve 120 is fitted onto the button body 110. In this embodiment, the pushing mechanism includes a pushing rod 431 and a pushing cylinder 432. The pushing rod 431 extends vertically and is located directly above the guide channel 443. The output end of the pushing cylinder 432 is connected to the upper end of the pushing rod 431. The outer diameter of the pushing rod 431 is less than or equal to the inner diameter of the guide channel 443. When the feeding plate 421 is in the second working position, the positioning hole 423 and the guide channel 443 are aligned vertically. At this time, the pushing cylinder 432 drives the pushing rod 431 to move downward, so that the pushing rod 431 can apply downward pressure to the upper end of the sliding sleeve 120 in the positioning hole 423. Under the pushing force of the pushing rod 431, the sliding sleeve 120 passes through the positioning hole 423 and the guide channel 443 in sequence, and finally accurately fits onto the button body 110 in the second working position.

[0050] like Figure 9 , Figure 10 and Figure 11 As shown, the second assembly device 500 can be used to mount the first sealing ring 130 onto the sliding sleeve 120 of the tooling fixture 220 at the third station. In a specific embodiment, the structure of the second assembly device 500 includes a third vibration feeding mechanism 510 and a sealing ring assembly mechanism.

[0051] The third vibratory feeding mechanism 510 is mounted on the frame 920. The third vibratory feeding mechanism 510 is used to sequentially output the first sealing ring 130. The third vibratory feeding mechanism 510 has a third feeding position, which allows the sealing ring assembly mechanism to grasp the first sealing ring 130. It is understood that the third vibratory feeding mechanism 510 includes a vibratory plate and a linear feeder. In this embodiment, the first sealing ring 130 at the third feeding position is in an upright position, and the central axis of the first sealing ring 130 extends in the vertical direction.

[0052] The sealing ring assembly mechanism is mounted on the frame 920. The sealing ring assembly mechanism can be used to transfer the first sealing ring 130 of the third loading position to the tooling plate 221 of the third station, and to fit the first sealing ring 130 onto the sliding sleeve 120. The sealing ring assembly mechanism includes a sealing ring opening mechanism 560, a first adsorption robot, and an assembly robot.

[0053] The sealing ring opening mechanism 560 includes multiple opening claws 561, which are arranged circumferentially and are movable. During operation, the multiple opening claws 561 either move inwards or outwards. The multiple opening claws 561 are configured to open outwards to inwardly support the first sealing ring 130. It is understood that the structure and working principle of the sealing ring opening mechanism 560 are well known to those skilled in the art and will not be described in detail here. When the multiple opening claws 561 are in the inward-moving state, the first sealing ring 130 can be freely fitted onto the multiple opening claws 561; then, when the multiple opening claws 561 are in the outward-moving state, the first sealing ring 130 is deformed by the tensile force of the multiple opening claws 561, causing the first sealing ring 130 to expand.

[0054] The first adsorption robot is used to vacuum adsorb the first sealing ring 130 at the third loading position and transfer it to the sealing ring spreading mechanism 560, so that the first sealing ring 130 is placed around the plurality of spreading claws 561. The first adsorption robot is located between the third loading position and the sealing ring spreading mechanism 560.

[0055] An assembly robot is positioned between the sealing ring opening mechanism 560 and the third workstation. The assembly robot includes a first motion unit and an assembly head 530. The assembly head 530 includes an outer sleeve 531, an inner pin 532, and a second spring 534. The outer sleeve 531, the inner pin 532, and the second spring 534 all extend vertically. The upper end of the outer sleeve 531 is connected to the output end of the first motion unit. The outer sleeve 531 has a cavity 535 with its opening facing downwards. The outer sleeve 531 is fitted onto the inner pin 532 and the second spring 534. The outer sleeve 531 and the inner pin 532 slide vertically together, allowing the inner pin 532 to partially extend out of the cavity 535 and also retract entirely into the cavity 535. In this embodiment, the cavity 535 is a stepped cavity, and the inner pin 532 is a stepped cylinder. The inner pin 532 can be adapted to connect with the cavity 535, allowing the inner pin 532 to slide up and down relative to the outer sleeve 531, while maintaining a connection between the inner pin 532 and the outer sleeve 531. The lower end of the inner pin 532 is provided with a stepped clearance hole 533, which opens downwards and allows the button body 110 and the sliding sleeve 120 to extend into it. The second spring 534 is located above the inner pin 532 and inside the cavity 535. The upper and lower ends of the second spring 534 abut against the outer sleeve 531 and the inner pin 532, respectively, so that the inner pin 532 protrudes downwards from the outer sleeve 531 through the elastic force of the second spring 534.

[0056] The first motion unit can be used to drive the assembly head 530 to perform two-dimensional or three-dimensional motion. The first motion unit is configured to drive the inner pin 532 to move to the inner periphery of a plurality of spreading claws 561, so that the sealing ring spreading mechanism 560 sleeves the first sealing ring 130 on the inner pin 532. Moreover, the first motion unit is also configured to drive the outer sleeve 531 to move downward relative to the sliding sleeve 120, so that the inner pin 532 retracts into the outer sleeve 531 when it abuts against the sliding sleeve 120, while the outer sleeve 531 presses down on the first sealing ring 130 on the inner pin 532 and sleeves it on the sliding sleeve 120.

[0057] In this embodiment, the first motion unit includes a second lifting cylinder 540 and a first translation cylinder 550. The upper end of the assembly head 530 is fixedly connected to the output end of the second lifting cylinder 540, and the second lifting cylinder 540 is fixedly connected to the output end of the first translation cylinder 550. The first adsorption manipulator includes a first adsorption head 521 and a first lifting cylinder 522. The upper end of the first adsorption head 521 is fixedly connected to the output end of the first lifting cylinder 522, and the first lifting cylinder 522 is fixedly connected to the output end of the first translation cylinder 550.

[0058] It is understandable that by operating the first translation cylinder 550, the first lifting cylinder 522 and the second lifting cylinder 540 can move synchronously, thus saving one translation cylinder. When the first suction head 521 is located directly above the third loading position, the assembly head 530 is located directly above the multiple spreading claws 561; when the first suction head 521 moves horizontally to the position directly above the multiple spreading claws 561, the assembly head 530 moves horizontally to the position directly above the button body 110 of the third station. Of course, it is not excluded that in other embodiments, the first lifting cylinder 522 and the second lifting cylinder 540 are set separately, and an additional translation cylinder is added to drive the first lifting cylinder 522 to move horizontally.

[0059] The lower surface of the first adsorption head 521 is provided with multiple first adsorption holes. By evacuating the first adsorption holes, the first adsorption head 521 can pick up the first sealing ring 130 located at the third loading position through vacuum adsorption. Driven by the first lifting cylinder 522 and the first translation cylinder 550, the first adsorption head 521 transfers the first sealing ring 130 to a position directly above the multiple opening claws 561. By releasing the vacuum adsorption, the first sealing ring 130 is allowed to automatically fit into the multiple opening claws 561 due to gravity. Then, the sealing ring opening mechanism 560 expands the first sealing ring 130. Next, the second lifting cylinder 540 and the first translation cylinder 550 work together to make the assembly head 530 and the multiple opening claws 561 arranged vertically opposite each other. At this time, the sealing ring opening mechanism 560 fits the expanded first sealing ring 130 onto the inner pin shaft 532.

[0060] Subsequently, driven by the second lifting cylinder 540 and the first translation cylinder 550, the assembly head 530 moves the first sealing ring 130 to directly above the button body 110 at the third station, and then moves downward relative to the button body 110. Figure 11 As shown, during the downward movement of the assembly head 530, the upper end of the button body 110 and the upper end of the sliding sleeve 120 extend into the stepped clearance hole 533. When the upper end of the sliding sleeve 120 abuts against the inner pin 532, the inner pin 532 overcomes the elastic force of the second spring 534 due to the force of the sliding sleeve 120 and retracts into the cavity 535 of the outer sleeve 531. At the same time, as the outer sleeve 531 continues to move downward, it can engage with the first sealing ring fitted on the inner pin 532. The sealing ring 130 is pushed, causing the first sealing ring 130 to move downward relative to the inner pin 532. When the inner pin 532 is completely retracted into the cavity 535 of the outer sleeve 531, the first sealing ring 130 returns to its natural state due to leaving the inner pin 532 and is fitted onto the appropriate position of the sliding sleeve 120. Thus, through the cooperation of the outer sleeve 531 and the inner pin 532, the first sealing ring 130 on the inner pin 532 is pressed down and fitted onto the sliding sleeve 120.

[0061] This embodiment, by employing the aforementioned sealing ring assembly mechanism, can simultaneously perform the opening and fitting of the first sealing ring 130, which helps to accelerate the assembly speed of the first sealing ring 130 and thus improve assembly efficiency.

[0062] like Figure 12 As shown, the third assembly device 600 can be used to mount the second sealing ring 140 onto the button body 110 on the tooling fixture 220 of the fourth station. In a specific embodiment, the third assembly device 600 includes a fourth vibrating feeding mechanism 610 and a second suction robot.

[0063] A fourth vibrating feeding mechanism 610 is mounted on the frame 920. This mechanism sequentially outputs the second sealing rings 140. The fourth vibrating feeding mechanism 610 has a fourth feeding position, which allows a second suction robot to pick up the second sealing rings 140. It is understood that the fourth vibrating feeding mechanism 610 includes a vibrating plate and a linear feeder. In this embodiment, the second sealing ring 140 at the fourth feeding position is upright, and its central axis extends vertically.

[0064] The second suction robot is mounted on the frame 920. It is used to vacuum-adsorb the second sealing ring 140 at the fourth loading position and transfer it to the tooling plate 221 at the fourth station, so that the second sealing ring 140 is fitted onto the button body 110. In this embodiment, the second suction robot includes a second suction head 621, a third lifting cylinder 622, and a second translation cylinder 623. The upper end of the second suction head 621 is fixedly connected to the output end of the third lifting cylinder 622, and the third lifting cylinder 622 is fixedly connected to the output end of the second translation cylinder 623.

[0065] The lower surface of the second adsorption head 621 is provided with multiple second adsorption holes. By evacuating the second adsorption holes, the second adsorption head 621 can pick up the second sealing ring 140 located at the fourth loading position through vacuum adsorption. With the cooperation of the second translation cylinder 623 and the third lifting cylinder 622, the second adsorption head 621 drives the second sealing ring 140 to move to the position directly above the button body 110 at the fourth position. At this time, by releasing the vacuum adsorption effect, the second sealing ring 140 automatically fits into the button body 110 under the action of gravity and abuts against the upper surface of the sliding sleeve 120.

[0066] like Figure 13 and Figure 14 As shown, the fourth assembly device 700 can be used to snap the snap ring 150 onto the button body 110 on the tooling fixture 220 of the fifth station to assemble a switch button. In a specific embodiment, the fourth assembly device 700 includes a fifth vibration feeding mechanism 710 and a second feeding mechanism.

[0067] The fifth vibrating feeding mechanism 710 is mounted on the frame 920. The fifth vibrating feeding mechanism 710 can be used to output the snap ring 150 in sequence. The fifth vibrating feeding mechanism 710 has a fifth feeding position, which allows the snap ring 150 to fall on the second feeding mechanism.

[0068] The second feeding mechanism is mounted on the frame 920. The second feeding mechanism includes a second linear drive 722 and a feeding seat 721. The feeding seat 721 has a receiving groove 723 and a clearance groove 724. The receiving groove 723 is open upwards and configured to receive the retaining spring 150. The clearance groove 724 is located below the receiving groove 723 and configured to avoid the button body 110. The receiving groove 723 and the clearance groove 724 form a U-shape when viewed vertically, and both penetrate the side of the feeding seat 721 near the positioning groove 222. The clearance groove 724 extends vertically and communicates with the receiving groove 723. In this embodiment, the clearance groove 724 and the receiving groove 723 together form a stepped notch that extends vertically and forms a U-shape when viewed vertically. The feeder 721 is located above the tooling fixture 220 at the fifth station. The feeder 721 is fixedly connected to the output end of the second linear drive 722. The second linear drive 722 is configured to drive the feeder 721 to move horizontally so that the feeder 721 receives the snap ring 150 falling from the fifth loading position and horizontally snaps the snap ring 150 onto the button body 110.

[0069] Understandably, the second linear drive 722 can be a telescopic cylinder, and the feed seat 721 can be installed at the output end of the telescopic cylinder via a connecting block. The fifth vibratory feeding mechanism 710 includes a vibratory plate or a vibratory plate and a linear feeder. The fifth vibratory feeding mechanism 710 has a conveying track, which can limit and convey the snap rings 150, ensuring that each snap ring 150 is arranged in sequence and can move along the conveying track, while the openings of the snap rings 150 face the same direction. The end of the conveying track is located directly above the receiving groove 723 of the feed seat 721, so that the snap rings 150 can fall vertically downwards onto the receiving groove 723. When the snap ring 150 leaves the conveying track and is placed in the receiving groove 723, the upper surface of the snap ring 150 is flush with the upper end of the receiving groove 723, and the openings of the snap ring 150, the receiving groove 723, and the clearance groove 724 face the same direction.

[0070] Then, under the driving action of the second linear drive 722, the feed seat 721 drives the retaining ring 150 to move horizontally towards the fifth station. At this time, the retaining ring 150 at the bottom of the conveying track will abut against the upper surface of the feed seat 721. During the horizontal movement of the feed seat 721 relative to the button body 110 of the fifth station, the button body 110 will extend into the receiving groove 723 and the clearance groove 724 relative to the feed seat 721. Under this condition, the retaining ring 150 will be deformed by the pushing action of the feed seat 721 and the spreading action of the button body 110, so that the opening of the retaining ring 150 is expanded until the retaining ring 150 moves horizontally to the position relative to the button body 110. The opening of the retaining ring 150 will shrink or even return to its original state, so that the retaining ring 150 and the button body 110 are engaged. Next, the feeder 721 moves in the opposite direction under the action of the second linear drive 722 until the receiving groove 723 is aligned vertically with the end of the conveying track so that the feeder 721 can receive the next retaining ring 150.

[0071] Furthermore, such as Figure 13 As shown, the fourth assembly device 700 also includes a positioning mechanism. The positioning mechanism is mounted on the frame 920 and includes a third linear drive 732 and a positioning block 731. The positioning block 731 and the feed seat 721 are arranged opposite each other along the moving direction of the feed seat 721. The positioning block 731 is connected to the output end of the third linear drive 732, which is configured to drive the positioning block 731 to move along the moving direction of the feed seat 721, so that the positioning block 731 presses against and positions the button body 110 when the retaining spring 150 engages with the button body 110, keeping the button body 110 in a straight position.

[0072] It is understandable that the third linear drive 732 can be a telescopic cylinder. The shape and size of the positioning block 731 are not limited, as long as it can ensure that the button body 110 remains straight during the installation of the retaining spring 150. During the assembly of the retaining spring 150, the third linear drive 732 drives the positioning block 731 to move towards the positioning groove 222, so that the positioning block 731 can contact the button body 110 and apply a blocking and limiting effect, ensuring that the button body 110 remains straight when the retaining spring 150 is pressed in. This prevents the button body 110 from easily bending and deforming due to the pressure of the retaining spring 150, thereby ensuring that the retaining spring 150 can smoothly and accurately engage in the set position of the button body 110, improving assembly efficiency and assembly success rate, and reducing the defect rate. In this embodiment, the receiving groove 723 of the positioning block 731 and the feeding seat 721 are arranged opposite each other in the radial direction of the turntable 210. The positioning block 731 is located on the side of the fifth station away from the central axis of the turntable 210, and the feeding seat 721 is located on the side of the fifth station close to the central axis of the turntable 210.

[0073] like Figure 15 As shown, the unloading device 800 can be used to unload the tooling fixture 220 at the sixth station by pressing the switch button. In a specific embodiment, the unloading device 800 includes a second gripping mechanism and a second pushing mechanism.

[0074] The second gripping mechanism is mounted on the frame 920. The second gripping mechanism includes a second motion unit and a second gripper 811. The second gripper 811 is configured to grip or release the switch button. The output end of the second motion unit is connected to the second gripper 811, and the second motion unit can drive the second gripper 811 to perform two-dimensional or three-dimensional motion. The second motion unit is configured to drive the second gripper 811 to remove the switch button from the tooling plate 221 of the sixth station.

[0075] In this embodiment, the second motion unit includes a fourth lifting cylinder 812 and a third translation cylinder 813. The second gripper 811 is a pneumatic gripper that can stably grip the switch button with two claw fingers. The second gripper 811 is fixedly connected to the output end of the fourth lifting cylinder 812, and the fourth lifting cylinder 812 is fixedly connected to the output end of the third translation cylinder 813. Under the cooperative action of the fourth lifting cylinder 812 and the third translation cylinder 813, the second gripper 811 can stably grip the switch button located at the sixth station and remove the switch button from the tooling fixture 220 to transfer it to the set position, thereby completing the unloading of the assembled switch button.

[0076] The second pushing mechanism is mounted on the frame 920. The second pushing mechanism can be used to push the limit plate 223 of the sixth station to move away from the positioning groove 222 so that the switch button can leave the tooling plate 221. The second pushing mechanism is configured to automatically reset after the switch button is unloaded so that the first spring 225 drives the limit plate 223 to move closer to the positioning groove 222.

[0077] In this embodiment, the second pushing mechanism includes a second push block 821 and a second cylinder 822. The second push block 821 is located below the tooling fixture 220 of the sixth station. The output end of the second cylinder 822 is connected to the second push block 821. The second push block 821 and the sliding block 227 of the sixth station are arranged opposite each other along the moving direction of the sliding block 227. Under the driving action of the second cylinder 822, the second push block 821 can push the sliding block 227 to move linearly during the movement, so that the limiting plate 223 can overcome the elastic force of the first spring 225 and move away from the positioning groove 222, which facilitates the second gripping mechanism to remove the switch button of the sixth station from the tooling fixture 220. After the unloading of the switch button is completed, the second cylinder 822 drives the second push block 821 to move in the opposite direction so that the second push block 821 automatically resets. At this time, the limiting plate 223 moves linearly under the elastic force of the first spring 225, so that the limiting plate 223 returns to its initial state.

[0078] In some embodiments, such as Figure 2 and Figure 3 As shown, the automatic assembly equipment for the switch button of the dental three-way gun also includes a detection mechanism 910. A detection station is provided along the outer periphery of the turntable 210, located between the first and second stations. The detection mechanism 910 is positioned opposite the detection station and can detect the button body 110 on the fixture 220 at the detection station. It is understood that the detection mechanism 910 can be a photoelectric switch or a camera from a vision system. If the detection mechanism 910 detects that the button body 110 is not present on the fixture 220 at the detection station, it will generate a first detection signal. At this time, the automatic assembly equipment for the switch button of the dental three-way gun will stop and issue an alarm, notifying the staff to handle the problem promptly, such as replenishing the button body 110 to the first vibrating feeding mechanism 310.

[0079] It is understood that the cylinder mentioned in the above embodiments can be a single-axis cylinder or a multi-axis cylinder.

[0080] The automatic assembly process of the switch button of the dental three-way gun provided in this application embodiment is as follows: During the operation of the station transfer device, the turntable 210 can drive multiple tooling fixtures 220 to rotate horizontally, so that the tooling fixtures 220 can sequentially reach the first station, the second station, the third station, the fourth station, the fifth station, and the sixth station; when the tooling fixture 220 rotates to the first station, the feeding device 300 operates and transfers the button body 110 in an inverted position to the tooling fixture located at the first station. The tooling fixture 220 is used to load the button body 110. When the tooling fixture 220 rotates to the second station, the first assembly device 400 operates and transfers the sliding sleeve 120 to the tooling fixture 220 at the second station, so that the sliding sleeve 120 is fitted downwards onto the button body 110 on the tooling fixture 220 to complete the assembly of the sliding sleeve 120. When the tooling fixture 220 rotates to the third station, the second assembly device 500 operates and transfers the first sealing ring 130 to the tooling fixture 220 at the third station. The first sealing ring 130 is fitted downwards onto the sliding sleeve 120 on the tooling fixture 220 to complete the assembly of the first sealing ring 130. When the tooling fixture 220 rotates to the fourth position, the third assembly device 600 operates and transfers the second sealing ring 140 to the tooling fixture 220 located at the fourth position, so that the second sealing ring 140 is fitted downwards onto the button body 110 on the tooling fixture 220 to complete the assembly of the second sealing ring 140. When the tooling fixture 220 rotates to the fifth position, the fourth assembly device 600 operates. The device 700 operates and transfers the retaining ring 150 to the tooling fixture 220 located at the fifth station, so that the retaining ring 150 is engaged with the button body 110 on the tooling fixture 220, and the button body 110, the sliding sleeve 120, the first sealing ring 130, the second sealing ring 140 and the retaining ring 150 are assembled together to form a switch button; when the tooling fixture 220 rotates to the sixth station, the unloading device 800 operates and removes the switch button on the tooling fixture 220 located at the sixth station to complete the unloading of the switch button.

[0081] Therefore, the automatic assembly equipment for the switch buttons of the dental three-way gun can complete the feeding of the button body 110, the assembly of the sliding sleeve 120, the assembly of the first sealing ring 130, the assembly of the second sealing ring 140, the assembly of the retaining ring 150, and the unloading of the switch buttons at the same time, realizing the automated assembly of the switch buttons, reducing manpower input, improving the assembly efficiency of the switch buttons, and helping to reduce assembly costs and increase product production efficiency.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An automatic assembly device for the switch button of a dental three-way gun, wherein the switch button includes a button body, a sliding sleeve, a first sealing ring, a second sealing ring, and a retaining spring, characterized in that, The automatic assembly device for the switch button of the dental three-way gun includes: A workstation transfer device includes a horizontally rotatable turntable and multiple tooling fixtures for positioning and fixing the button body. The multiple tooling fixtures are disposed on the turntable and evenly arranged along the outer periphery of the turntable. The turntable has a first workstation, a second workstation, a third workstation, a fourth workstation, a fifth workstation, and a sixth workstation arranged sequentially along its outer periphery. The turntable is configured to drive the tooling fixtures to rotate sequentially to the first workstation, the second workstation, the third workstation, the fourth workstation, the fifth workstation, and the sixth workstation. A feeding device is used to invert the button body onto the tooling fixture at the first station; A first assembly device is used to mount the sliding sleeve onto the tooling fixture at the second workstation for the button body; The second assembly device is used to fit the first sealing ring onto the sliding sleeve of the tooling fixture at the third station; The third assembly device is used to fit the second sealing ring onto the tooling fixture at the fourth station of the button body; The fourth assembly device is used to snap the snap ring onto the button body on the tooling fixture at the fifth station to assemble the switch button; The unloading device is used to unload the switch button from the tooling fixture at the sixth station.

2. The automatic assembly device for the switch button of the dental three-way gun according to claim 1, characterized in that, The tooling fixture includes: The tooling plate has an upward-facing positioning groove, which is configured to adapt to and contact the outer peripheral surface of the pressing part of the button body so that the pressing part is placed in the positioning groove. The tooling plate is connected to the turntable. The limiting plate is slidably connected to the tooling plate; A first spring, with its two ends connected to the tooling plate and the limiting plate respectively, is configured to drive the limiting plate to move toward the positioning groove and abut against the pressing part, so that the limiting plate and the positioning groove together form a limiting structure for positioning and fixing the button body.

3. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The feeding device includes: A first vibrating feeding mechanism is used to sequentially output the button body, and the first vibrating feeding mechanism is provided with a first feeding position; A feeding mechanism is used to lift the button body of the first feeding position upwards; The first gripping mechanism includes a first rotary drive and at least one first gripper. The first gripper is arranged in a circumferential manner on the output end of the first rotary drive. The first gripper is configured to grip or release the button body. The first rotary drive is configured to drive the first gripper to transfer the button body that has been lifted to the tooling plate of the first station, so that the pressing part is located in the positioning groove. A first pushing mechanism is used to push the limiting plate of the first station to move away from the positioning groove so that the pressing part is placed in the positioning groove. The first pushing mechanism is configured to automatically reset after the button body is inverted on the tooling plate of the first station so that the first spring drives the limiting plate to move closer to the positioning groove.

4. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The first assembly device includes: The feeding seat is provided with a horizontally extending discharge channel and a feeding channel and a guiding channel that are both connected vertically. The lower end of the feeding channel is connected to the discharge channel. The guiding channel is configured to be vertically opposite to the positioning groove on the tooling plate of the second station, so as to guide the sliding sleeve downward to the button body. The second vibrating feeding mechanism is used to sequentially output the sliding sleeve, and the second vibrating feeding mechanism is configured to convey the sliding sleeve into the feeding channel; The first feeding mechanism includes a first linear drive and a feeding plate. The feeding plate has a positioning hole that runs through the top and bottom and is used to accommodate the sliding sleeve. The first linear drive is configured to drive the feeding plate to move horizontally along the discharge channel so that the feeding plate receives the sliding sleeve falling from the loading channel and conveys it to the guide channel. A pushing mechanism is used to push the sliding sleeve inside the positioning hole down along the material guide channel when the positioning hole is aligned vertically with the material guide channel, so that the sliding sleeve is fitted onto the button body.

5. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The second assembly device includes: The third vibrating feeding mechanism is used to sequentially output the first sealing ring, and the third vibrating feeding mechanism is provided with a third feeding position; A sealing ring assembly mechanism is used to transfer the first sealing ring from the third loading position to the tooling plate of the third station, and to fit the first sealing ring onto the sliding sleeve.

6. The automatic assembly device for the switch button of the dental three-way gun according to claim 5, characterized in that, The sealing ring assembly mechanism includes: The sealing ring opening mechanism includes a plurality of opening claws arranged circumferentially and movably, wherein the plurality of opening claws are configured to open outward to support the first sealing ring inward. The first adsorption robot is used to vacuum adsorb the first sealing ring at the third loading position and transfer it to the sealing ring spreading mechanism so that the first sealing ring is placed around the periphery of the plurality of spreading claws. An assembly robot includes a first motion unit, an outer sleeve, an inner pin, and a second spring, all extending vertically. The upper end of the outer sleeve is connected to the output end of the first motion unit. The outer sleeve is fitted onto the inner pin and the second spring. The outer sleeve slides vertically and horizontally with the inner pin. The lower end of the inner pin has a stepped clearance hole with an opening facing downwards, allowing the button body and the sliding sleeve to extend into it. The two ends of the second spring abut against the outer sleeve and the inner pin, respectively, to drive the inner pin to protrude downwards beyond the outer sleeve. The first motion unit is configured to drive the inner pin to move to the inner periphery of a plurality of spreading claws, so that the sealing ring spreading mechanism fits the first sealing ring onto the inner pin. The first motion unit is also configured to drive the outer sleeve to move downwards relative to the sliding sleeve, so that the inner pin retracts into the outer sleeve when it abuts against the sliding sleeve, while the outer sleeve presses down on the first sealing ring on the inner pin and fits it onto the sliding sleeve.

7. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The third assembly device includes: The fourth vibrating feeding mechanism is used to sequentially output the second sealing ring, and the fourth vibrating feeding mechanism is provided with a fourth feeding position; The second adsorption robot is used to vacuum adsorb the second sealing ring at the fourth loading position and transfer it to the tooling plate at the fourth station so that the second sealing ring is fitted onto the button body.

8. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The fourth assembly device includes: The fifth vibrating feeding mechanism is used to sequentially output the retaining rings, and the fifth vibrating feeding mechanism is provided with a fifth feeding position; The second feeding mechanism includes a second linear drive and a feeding seat. The feeding seat has an upward-opening receiving groove and a clearance groove located below the receiving groove. The receiving groove is configured to receive the retaining spring, and the clearance groove is configured to avoid the button body. The receiving groove and the clearance groove are U-shaped when viewed vertically and extend through the side of the feeding seat near the positioning groove. The clearance groove extends vertically and communicates with the receiving groove. The second linear drive is configured to drive the feeding seat to move horizontally so that the feeding seat receives the retaining spring that falls from the fifth loading position and horizontally engages the retaining spring with the button body.

9. The automatic assembly device for the switch button of the dental three-way gun according to claim 8, characterized in that, The fourth assembly device also includes: The positioning mechanism includes a third linear drive and a positioning block. The positioning block and the feed seat are arranged opposite to each other along the moving direction of the feed seat. The third linear drive is configured to drive the positioning block to move along the moving direction of the feed seat, so that the positioning block presses and positions the button body when the snap ring is engaged with the button body, so that the button body remains in a straight state.

10. The automatic assembly device for the switch button of the dental three-way gun according to claim 2, characterized in that, The feeding device includes: The second material handling mechanism includes a second motion unit and a second gripper. The second gripper is configured to grip or release the switch button, and the second motion unit is configured to drive the second gripper to remove the switch button from the tooling plate of the sixth station. The second pushing mechanism is used to push the limiting plate of the sixth station to move away from the positioning groove so that the switch button can leave the tooling plate. The second pushing mechanism is configured to automatically reset after the switch button is unloaded so that the first spring drives the limiting plate to move closer to the positioning groove.

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