Pre-assembling device for loudspeaker fixing piece

Abstract

The preassembling device for the loudspeaker fixing part comprises an equipment base, a fixing bolt feeding device, a sealing gasket feeding device, a pressing device and a controller, the fixing bolt feeding device comprises a first rotary feeding disc, a feeding pipe and a fixing base, and a first connecting groove and a second connecting groove are formed in the fixing base; the sealing washer feeding device comprises a second rotary feeding disc, a conveying rail, a sliding base, a material pushing plate, a flat vibration motor and a first hydraulic air cylinder, a limiting groove is formed in the material pushing plate, and the pressing device comprises a fixing frame, a pressing rod and a second hydraulic air cylinder. The controller is electrically connected with the first hydraulic air cylinder, the second hydraulic air cylinder, the first rotary feeding disc, the second rotary feeding disc and the flat vibration motor.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a pre-assembly device for loudspeaker fixing components. Background Technology

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals. A loudspeaker is assembled from various components, which are then secured and protected by a loudspeaker housing. The housing is typically fixed with bolts. To ensure a tight seal inside the housing, a gasket is usually placed on the bolts. Currently, the gasket and bolts are manually assembled before the loudspeaker is assembled, which significantly reduces assembly efficiency. Furthermore, workers may forget to place the gasket, resulting in insufficient sealing in the assembled loudspeaker. Therefore, a new device is needed that can efficiently, accurately, and automatically pre-assemble the fasteners. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a device capable of efficiently, accurately, and automatically completing the pre-assembly of fasteners.

[0004] The technical solution of this utility model: A pre-assembly device for speaker fixing components, comprising a device base, a fixing bolt feeding device connected to the device base, a sealing gasket feeding device connected to the device base, a clamping device connected to the device base, and a controller. The fixing bolt feeding device includes a first rotating feeding disc connected to the device base, a feeding pipe connected to the first rotating feeding disc, and a fixing base connected to the feeding pipe. The fixing base is provided with a first connecting groove and a second connecting groove. The feeding pipe is fixedly connected to the first connecting groove, and the first connecting groove communicates with the second connecting groove. The central axis of the first connecting groove and the central axis of the second connecting groove are at a certain oblique angle, and the central axis of the second connecting groove is vertical. The sealing gasket feeding device includes a second rotating feeding disc connected to the device base, a transmission track connected to the second rotating feeding disc, and a device slidably connected to the device base. The device comprises a sliding base, a pusher plate fixedly connected to the sliding base, a vibrating motor connected to the transmission track, and a first hydraulic cylinder for driving the sliding base to move horizontally. The pusher plate is provided with a limiting groove, which is adapted to the shape and size of the sealing gasket to be processed. When the pusher plate is in the initial position, the limiting groove corresponds to the end position of the transmission track. After the pusher plate slides a certain distance, the limiting groove is located directly below the second connecting groove. The pressing device includes a fixed frame connected to the equipment base, a pressure rod slidably connected to the fixed frame, and a second hydraulic cylinder for driving the pressure rod to move vertically. The pressure rod is adapted to the cross-sectional shape of the second connecting groove, and the position of the pressure rod corresponds to the second connecting groove. The controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the first rotary feed plate, the second rotary feed plate, and the vibrating motor.

[0005] Using the above technical solution, when pre-assembly of fasteners is required, the controller first controls the first rotating feed plate to transfer the fastening bolt to be processed into the feed pipe. Then, the fastening bolt enters the first connecting groove through the feed pipe. Since the first connecting groove is connected to the second connecting groove, the fastening bolt enters the second connecting groove and keeps the central axis of the fastening bolt vertical. At the same time, the controller controls the second rotating feed plate to transfer the sealing gasket to be processed to the end of the transmission track and drops it from the end of the transmission track into the corresponding limiting groove. Then, the controller controls the first hydraulic cylinder to drive the sliding base to move horizontally, so that the pusher plate slides a certain distance until the position of the limiting groove is directly below the second connecting groove. Then, the controller controls the second hydraulic cylinder to drive the pressure rod to move vertically downward, so that the fastening bolt enters the through hole on the sealing gasket, thereby completing the pre-assembly of the fastening bolt and the sealing gasket. This allows for efficient assembly of the speaker housing later. In addition, this pre-assembly method has a high degree of automation, which can greatly improve assembly efficiency and reduce labor costs.

[0006] A further feature of this invention is a discharge device, which includes a limiting baffle fixedly connected to the equipment base and a material collection bin fixedly connected to the equipment base. The distance between the top of the limiting baffle and the bottom of the pusher plate is 0.5 cm. When the sliding base moves horizontally, the limiting groove can pass directly above the limiting baffle. The central axis of the limiting baffle forms a certain angle with the X-axis, and the limiting groove is semi-circular.

[0007] Using the above technical solution, after the pre-assembly of the fasteners is completed, the controller controls the first hydraulic cylinder to drive the sliding base to reset, and the pusher plate also resets accordingly. During the reset process of the pusher plate, since the distance between the top of the limit baffle and the bottom of the pusher plate is 0.5 cm, the bottom of the fixing bolt will be blocked by the limit baffle, thus sliding out of the limit groove along with the sealing gasket, thereby completing the automatic material discharge work, further reducing labor costs and improving the automation level of the equipment.

[0008] A further feature of this invention is that the device base is provided with a first infrared sensor and a second infrared sensor. The position of the infrared signal emitted by the first infrared sensor corresponds to the initial position of the limiting groove, and the position of the infrared signal emitted by the second infrared sensor corresponds to the position directly below the second connecting groove. The first infrared sensor and the second infrared sensor are electrically connected to the controller.

[0009] By adopting the above technical solution, since the position of the infrared signal emitted by the first infrared sensor corresponds to the initial position of the limiting groove, and the position of the infrared signal emitted by the second infrared sensor corresponds to the position directly below the second connecting groove, when the sealing gasket enters the initial position of the limiting groove, the first infrared sensor senses that the sealing gasket has entered the limiting groove and sends an electrical signal to the controller. The controller controls the first hydraulic cylinder to drive the sliding base to slide horizontally. When the second infrared sensor senses that the limiting groove is directly below the second connecting groove, the second infrared sensor sends an electrical signal to the controller. The controller controls the second hydraulic cylinder to drive the pressure rod to move vertically downward, thereby assembling the fixing bolt and the sealing gasket together. This can greatly improve the accuracy of the pre-assembled fasteners and reduce the defect rate of the pre-assembled fasteners.

[0010] A further feature of this invention is that the equipment base is also equipped with an air blowing device, which includes an air blowing element fixedly connected to the equipment base, a connecting pipe connected to the air blowing element, and a blower connected to the connecting pipe. The airflow blown by the air blowing element blows from the direction of the second rotating feed plate to the direction of the pusher plate. The controller is electrically connected to the blower. Using the above technical solution, after the sealing gasket enters the transmission track from the second rotating feed plate, the controller controls the blower and the vibrating motor to work simultaneously. The sealing gasket, moved by the vibration force of the vibrating motor to the position where the airflow blown by the air blowing element is located, will accelerate towards the direction of the limiting groove due to the airflow, thereby improving the feeding efficiency of the sealing gasket and thus improving the overall assembly efficiency of the device. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of a pre-assembly device for a speaker fixing component according to a specific embodiment of the present invention.

[0012] Appendix Figure 2 This is a cross-sectional view of a fixing base in a pre-assembly device for a speaker fixing component according to a specific embodiment of the present invention.

[0013] 1-Equipment base, 2-Fixing bolt feeding device, 3-Sealing gasket feeding device, 4-Clamping device, 5-Controller, 6-First rotary feeding disc, 7-Feeding pipe, 8-Fixing base, 9-First connecting groove, 10-Second connecting groove, 11-Second rotary feeding disc, 12-Transmission track, 13-Sliding base, 14-Push plate, 15-Shrinking motor, 16-First hydraulic cylinder, 17-Limiting groove, 18-Fixing frame, 19-Pressure rod, 20-Second hydraulic cylinder, 21-Discharge device, 22-Limiting baffle, 23-Collection bin, 24-First infrared sensor, 25-Second infrared sensor, 26-Blowing device, 27-Blowing element, 28-Connecting pipe, 29-Blower. Detailed Implementation

[0014] like Figure 1-2As shown, a pre-assembly device for speaker mounting components includes a base 1, a bolt feeding device 2 connected to the base 1, a gasket feeding device 3 connected to the base 1, a clamping device 4 connected to the base 1, and a controller 5. The bolt feeding device 2 includes a first rotating feed disc 6 connected to the base 1, a feed pipe 7 connected to the first rotating feed disc 6, and a fixed base 8 connected to the feed pipe 7. The fixed base 8 has a first connecting groove 9 and a second connecting groove 10. The feed pipe 7 is fixedly connected to the first connecting groove 9, and the first connecting groove 9 communicates with the second connecting groove 10. The central axis of the first connecting groove 9 and the central axis of the second connecting groove 10 form a certain oblique angle, and the central axis of the second connecting groove 10 is vertical. The gasket feeding device 3 includes a second rotating feed disc 11 connected to the base 1, a transmission track 12 connected to the second rotating feed disc 11, a sliding base 13 slidably connected to the base 1, and a clamping device 4 fixedly connected to the base 1. The sliding base 13 includes a pusher plate 14, a vibrating motor 15 connected to the transmission rail 12, and a first hydraulic cylinder 16 for driving the sliding base 13 to move horizontally. The pusher plate 14 is provided with a limiting groove 17, which is adapted to the shape and size of the sealing gasket to be processed. When the pusher plate 14 is in the initial position, the limiting groove 17 corresponds to the end position of the transmission rail 12. After the pusher plate 14 slides a certain distance, the limiting groove 17 is located in the second connecting groove. Directly below, the pressing device 4 includes a fixed frame 18 connected to the equipment base 1, a pressure rod 19 slidably connected to the fixed frame 18, and a second hydraulic cylinder 20 for driving the pressure rod 19 to move in the vertical direction. The pressure rod 19 is adapted to the cross-sectional shape of the second connecting groove, and the position of the pressure rod 19 corresponds to that of the second connecting groove. The controller 5 is electrically connected to the first hydraulic cylinder 16, the second hydraulic cylinder 20, the first rotating feed plate 6, the second rotating feed plate 11, and the vibration motor 15.

[0015] When pre-assembly of fasteners is required, the controller 5 first controls the first rotating feed plate 6 to transfer the fastening bolt to be processed into the feed pipe 7. Then, the fastening bolt enters the first connecting groove through the feed pipe 7. Since the first connecting groove is connected to the second connecting groove, the fastening bolt will enter the second connecting groove and keep the central axis of the fastening bolt vertical. At the same time, the controller 5 controls the second rotating feed plate 11 to transfer the sealing gasket to be processed to the end of the transfer track 12, and it falls from the end of the transfer track 12 into the corresponding limiting groove 17. Then, the control... The controller 5 controls the first hydraulic cylinder 16 to drive the sliding base 13 to move horizontally, so that the pusher plate 14 slides a certain distance until the position of the limiting groove 17 is directly below the second connecting groove. Then, the controller 5 controls the second hydraulic cylinder 20 to drive the pressure rod 19 to move vertically downward, so that the fixing bolt enters the through hole on the sealing gasket, thereby completing the pre-assembly of the fixing bolt and the sealing gasket, so that the subsequent assembly of the speaker housing can be completed efficiently. In addition, this pre-assembly method has a high degree of automation, which can greatly improve assembly efficiency and reduce labor costs.

[0016] It also includes a discharge device 21, which includes a limiting baffle 22 fixedly connected to the equipment base 1 and a collection bin 23 fixedly connected to the equipment base 1. The distance between the top of the limiting baffle 22 and the bottom of the pusher plate 14 is 0.5 cm. When the sliding base 13 moves in the horizontal direction, the limiting groove 17 can pass directly above the limiting baffle 22. The central axis of the limiting baffle 22 is at a certain angle to the X-axis, and the limiting groove 17 is semi-circular.

[0017] After the pre-assembly of the fasteners is completed, the controller 5 controls the first hydraulic cylinder 16 to drive the sliding base 13 to reset, and the pusher plate 14 is also reset. During the reset of the pusher plate 14, since the distance between the top of the limit baffle 22 and the bottom of the pusher plate 14 is 0.5 cm, the bottom of the fixing bolt will be blocked by the limit baffle 22, and thus slide out of the limit groove 17 along with the sealing gasket, thereby completing the automatic material discharge work, further reducing labor costs and improving the automation level of the equipment.

[0018] The device base 1 is provided with a first infrared sensor 24 and a second infrared sensor 25. The position of the infrared signal emitted by the first infrared sensor 24 corresponds to the initial position of the limiting groove 17, and the position of the infrared signal emitted by the second infrared sensor 25 corresponds to the position directly below the second connecting groove. The first infrared sensor 24 and the second infrared sensor 25 are electrically connected to the controller 5 respectively.

[0019] Since the infrared signal emitted by the first infrared sensor 24 corresponds to the initial position of the limiting groove 17, and the infrared signal emitted by the second infrared sensor 25 corresponds to the position directly below the second connecting groove, when the sealing gasket enters the initial position of the limiting groove 17, the first infrared sensor 24 senses that the sealing gasket has entered the limiting groove 17 and sends an electrical signal to the controller 5. The controller 5 controls the first hydraulic cylinder 16 to drive the sliding base 13 to slide horizontally. When the second infrared sensor 25 senses that the limiting groove 17 is directly below the second connecting groove, the second infrared sensor 25 sends an electrical signal to the controller 5. The controller 5 controls the second hydraulic cylinder 20 to drive the pressure rod 19 to move vertically downward, thereby assembling the fixing bolt and the sealing gasket together. This can greatly improve the accuracy of the pre-assembled fasteners and reduce the defect rate of the pre-assembled fasteners.

[0020] The equipment base 1 is also provided with an air blowing device 26. The air blowing device 26 includes an air blowing element 27 fixedly connected to the equipment base 1, a connecting pipe 28 connected to the air blowing element 27, and a blower 29 connected to the connecting pipe 28. The airflow blown out by the air blowing element 27 blows from the direction of the second rotating feed plate 11 to the direction of the pusher plate 14. The controller 5 is electrically connected to the blower 29.

[0021] After the sealing gasket enters the transmission track 12 from the second rotating feed plate 11, the blower 29 and the vibrating motor 15 are controlled by the controller 5 to work simultaneously. The sealing gasket is moved by the vibration force of the vibrating motor 15 to the position where the air blowing element 27 blows the air. Under the influence of the air flow, it will accelerate towards the direction of the limiting groove 17, thereby improving the feeding efficiency of the sealing gasket and thus improving the overall assembly efficiency of the device.

Claims

1. A pre-assembly device for loudspeaker fixtures, characterized by: The utility model provides a kind of equipment, including equipment pedestal, fixed bolt feeding device connected to equipment pedestal, sealing washer feeding device connected to equipment pedestal, pressing device connected to equipment pedestal and controller, the fixed bolt feeding device includes first rotary feeding disc connected to equipment pedestal, feeding pipe connected to first rotary feeding disc and fixed pedestal connected to feeding pipe, first connecting groove and second connecting groove are equipped on the fixed pedestal, the feeding pipe is fixedly connected to first connecting groove, first connecting groove is communicated with second connecting groove, the center axis of first connecting groove and the center axis of second connecting groove are at a certain oblique angle, the center axis of second connecting groove is vertical, the sealing washer feeding device includes second rotary feeding disc connected to equipment pedestal, transmission track connected to second rotary feeding disc, sliding base slidingly connected to equipment pedestal, push plate fixedly connected to sliding base, flat-shock motor connected to transmission track and first hydraulic cylinder for driving sliding base to move along horizontal direction, limit groove is equipped on the push plate, the shape and size of limit groove are adapted to the sealing washer to be processed, when push plate is at initial position, limit groove corresponds with the end position of transmission track, when push plate slides a certain distance, limit groove is located directly below second communicating groove, the pressing device includes fixed frame connected to equipment pedestal, pressure rod slidingly connected to fixed frame and second hydraulic cylinder for driving pressure rod to move along vertical direction, the pressure rod is adapted to the shape of the cross section of second communicating groove, the position of pressure rod corresponds with second communicating groove, the controller is electrically connected with first hydraulic cylinder, second hydraulic cylinder, first rotary feeding disc, second rotary feeding disc and flat-shock motor respectively.

2. A pre-assembly device for loudspeaker fixtures according to claim 1, characterized in that: It also includes discharge device, the discharge device includes fixedly connected to equipment pedestal's limit baffle and fixedly connected to equipment pedestal's material collecting bin, the spacing between the top of limit baffle and the bottom of push plate is 0.5 centimeters, when sliding base moves along horizontal direction, limit groove can pass directly above limit baffle, the center axis of limit baffle and X axis are at a certain oblique angle, limit groove is semicircular.

3. A pre-assembly device for loudspeaker fixtures according to claim 1, characterized in that: First infrared sensor and second infrared sensor are equipped on the equipment pedestal, the position of infrared signal emitted by first infrared sensor corresponds with the initial position of limit groove, the position of infrared signal emitted by second infrared sensor corresponds with directly below second communicating groove, first infrared sensor and second infrared sensor are electrically connected with controller respectively.

4. A pre-assembly device for loudspeaker fixtures according to claim 1, characterized in that: The equipment pedestal is also provided with blowing device, the blowing device includes fixedly connected to equipment pedestal's blowing element, connecting pipe connected to blowing element, air blower connected to connecting pipe, the airflow blown by blowing element blows from the direction where second rotary feeding disc is located to the direction where push plate is located, the controller is electrically connected with air blower.

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