CN110166924B - Multi-station processing device for loudspeaker frame - Google Patents

Multi-station processing device for loudspeaker frame Download PDF

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Publication number
CN110166924B
CN110166924B CN201910411795.8A CN201910411795A CN110166924B CN 110166924 B CN110166924 B CN 110166924B CN 201910411795 A CN201910411795 A CN 201910411795A CN 110166924 B CN110166924 B CN 110166924B
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Prior art keywords
punching
die
hole
punch
center
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CN110166924A (en
Inventor
郭桥生
康良军
郭奕君
郭智华
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Chaoyang Jushengtai Xinfeng Technology Co Ltd
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Chaoyang Jushengtai Xinfeng Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/003Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms

Abstract

The invention discloses a multi-station processing device for a loudspeaker basin frame, which comprises a mechanical disc, a stretching unit, a central hole punching unit and a waist hole punching unit, wherein a plurality of station holes are formed in the mechanical disc; a main shaft is arranged in the center of the mechanical disc and is arranged on the base through a bearing; according to the rotary multi-station mechanical disc, the rotary mechanical disc drives the workpiece to move to the stretching and punching stations to sequentially perform stretching, center hole punching and waist hole punching, a die does not need to be replaced, the processing of multiple procedures is automatically completed, the processing efficiency is greatly improved, and the rotary multi-station mechanical disc is worth of being widely popularized.

Description

Multi-station processing device for loudspeaker frame
Technical Field
The invention relates to the technical field of loudspeaker processing, in particular to a loudspeaker frame multi-station processing device.
Background
The loudspeaker is composed of an electromagnet, a coil and a loudspeaker diaphragm. The speaker converts the current frequency into sound. The principle of physics is that when current passes through a coil to generate an electromagnetic field, the direction of the magnetic field is the right-hand rule. Assuming that the speaker plays a C-tone at a frequency of 256Hz, i.e. 256 oscillations per second, the speaker outputs an alternating current at 256Hz, and the current changes 256 times per second, giving rise to the C-tone frequency. When the electrical coil vibrates with the speaker membrane, pushing the surrounding air to vibrate, the speaker thus generates sound.
The frequency of the sound waves that can be heard by the human ear is generally between 20 hz and 20000 hz, so that a general speaker is programmed in this range. The working principle is the same as described above. The energy conversion process is that electric energy is converted into magnetic energy, then the magnetic energy is converted into mechanical energy, and then the mechanical energy is converted into sound.
The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.
Cone speakers are also known as moving coil speakers.
It consists of three parts: the vibration system comprises a conical cone, a voice coil, a centering support and the like; a magnetic circuit system comprises a permanent magnet, a magnetic conduction plate, a field center column and the like; and the auxiliary system comprises a basin frame, a wiring board, a blank holder, a dust cover and the like. When voice frequency current flows through the voice coil in the magnetic field, a magnetic field changing along with the voice frequency current is generated, the magnetic field and the magnetic field of the permanent magnet interact with each other, so that the voice coil vibrates along the axial direction.
We most commonly use an electrodynamic cone speaker. The electrodynamic type cone loudspeaker often says that we become the cone loudspeaker in the past, though 2014 vibrating diaphragm still takes the cone as the main thing, has appeared many macromolecular material vibrating diaphragms, metal vibrating diaphragm simultaneously, has called the name with the cone loudspeaker true. The cone paper cone loudspeaker is mainly composed of three major parts, namely a magnetic loop system (a permanent magnet, a core column and a magnetic conduction plate), a vibration system (a paper cone and a voice coil), a support auxiliary system (a centering support sheet, a cone frame and a cushion edge) and the like.
1. Voice coil: the voice coil is a driving unit of a cone-shaped cone loudspeaker, and is formed by winding a thin copper wire on a paper tube in two layers, wherein dozens of turns of the thin copper wire are generally wound on the paper tube, and the thin copper wire is also called a coil and is placed in a magnetic suspected gap formed by a magnetic core column and a magnetic conduction plate. The voice coil is fixed together with the cone, and when a sound current signal is introduced into the voice coil, the voice coil vibrates to drive the cone to vibrate.
2. A paper basin: the cone diaphragm of cone paper cone loudspeaker is made of various materials, and generally includes two main types of natural fiber and artificial fiber. The natural fiber is usually cotton, wood, wool, spun silk, etc., and the artificial fiber is rayon, nylon, glass fiber, etc. Since the cone is a sound radiating device of the speaker and determines the sound reproduction performance of the speaker to a considerable extent, any cone is required to be light and rigid and not to be deformed due to changes in ambient temperature and humidity.
3. Folding rings: the corrugated rim is arranged for ensuring the axial movement of the cone along the loudspeaker and limiting the transverse movement, and simultaneously plays a role in blocking the circulation of the cone. The folding ring is made of common materials of the paper basin, and is adhered to the paper basin by plastic, natural rubber and the like through hot pressing.
4. Centering support piece: the centering support sheet is used for supporting the joint part of the voice coil and the cone so as to ensure that the voice coil and the cone are vertical and not inclined. The centering support is provided with a plurality of concentric rings, so that the voice coil can freely move up and down in the magnetic gap without transverse movement, and the voice coil is ensured not to collide with the magnetic conduction plate. The dust cover on the centering support piece is used for preventing external dust and the like from falling into magnetic gaps, and avoiding the friction between the dust and the voice coil so as to cause abnormal sound of the loudspeaker.
The loudspeaker frame is used as a framework of the loudspeaker, is a carrier and a support of a vibration system and a magnetic circuit system, the loudspeaker frame in the prior art is processed in a metal plate stamping mode, the loudspeaker frame is processed specifically by blanking, stretching, punching a center hole, punching a waist hole and other processes, after the processing of one process is finished, a die needs to be changed or a stamping machine needs to be replaced to process the next process, and the efficiency is low.
Disclosure of Invention
The invention aims to provide a loudspeaker frame multi-station processing device with high processing efficiency, and the loudspeaker frame multi-station processing device is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multi-station processing device for a loudspeaker basin frame comprises a mechanical disc, a stretching unit, a center hole punching unit and a waist hole punching unit, wherein a plurality of station holes are formed in the mechanical disc, a material sucking unit is arranged at the top of the mechanical disc on the inner side of each station hole and comprises a material sucking plate and a material sucking cylinder, the material sucking cylinder is fixedly mounted on the mechanical disc, a piston rod of the material sucking cylinder is fixedly connected with the material sucking plate, and an electromagnet is arranged at the bottom of the material sucking plate; the center of the mechanical disc is provided with a main shaft, the main shaft is arranged on the base through a bearing, the main shaft is also connected with a driving mechanism, the driving mechanism comprises a speed reducing motor, a driving gear is arranged on an output shaft of the speed reducing motor, and the driving gear is meshed with a driven gear on the main shaft;
the stretching unit comprises a stretching module, the stretching module comprises an upper stretching die and a lower stretching die, a stretching male die is arranged at the bottom of the upper stretching die, and a stretching female die matched with the stretching male die is arranged at the top of the lower stretching die; the top of the upper stretching die is fixedly connected with a punch;
the center hole punching unit comprises a center hole punching upper die and a center hole punching lower die, a center hole punching male die is arranged at the bottom of the center hole punching upper die, a center hole punching female die matched with the loudspeaker frame is arranged at the top of the center hole punching lower die, and a center blanking hole matched with the center hole punching male die is arranged at the center of the center hole punching female die; the top of the upper die for punching the central hole is fixedly connected with a punch rod;
the waist hole punching unit comprises a waist hole punching upper die and a waist hole punching lower die, a punch mechanism is arranged inside the waist hole punching upper die, the punch mechanism comprises a plurality of punching blocks which are uniformly distributed in an annular array manner, and the inner surfaces of the punching blocks are inclined planes; an inner punch is arranged at the center of the upper die for punching the waist hole, and a plurality of inclined planes wedged with the inner surface of the punching block are arranged on the periphery of the inner punch;
a blind hole matched with the inner punch is formed in the center of the upper die for punching the waist hole, a rectangular hole matched with the punching block is formed in the side face of the upper die for punching the waist hole, and the rectangular hole is communicated with the blind hole; the blind hole provides a channel for the inner punch to move up and down, and the bottom of the blind hole is in clearance fit with the bottom of the inner punch; the rectangular holes provide a channel for the punch block to move laterally.
The top of the upper die for punching the waist hole is fixedly connected with an upper die holder for punching the waist hole, the top of the inner punch is fixedly connected with a punch rod, the upper die holder for punching the waist hole is provided with a through hole which is in clearance fit with the punch rod, and the punch rod is in sliding connection with the upper die holder for punching the waist hole;
still be equipped with buffer gear between towards waist hole upper die base and the ram, this buffer gear includes buffer spring, and buffer spring locates between the spring holder on the ram and the towards waist hole upper die base, and spring holder fixed connection ram. The buffer spring has the effect that when the punch rod extrudes the punching block, the buffer spring can be used for pressing the upper die in the waist hole in a hedging mode, the positioning effect on the loudspeaker basin frame is kept, and the loudspeaker basin frame is prevented from shaking in the punching process.
A lower waist hole punching die is arranged below the upper waist hole punching die, a die cavity matched with the loudspeaker frame is arranged on the lower waist hole punching die, and a plurality of side blanking holes matched with the punching blocks are formed in the lower waist hole punching die.
As a further scheme of the invention: the mechanical disc below the material suction plate is provided with a slide rail, the bottom of the material suction plate is provided with a slide block matched with the slide rail, and the slide block is connected with the slide rail in a sliding manner.
As a further scheme of the invention: the punching die is characterized in that a reset mechanism is arranged between the punching block and the waist hole punching upper die, the reset mechanism comprises a chute arranged above the punching block, a sliding block embedded in the chute is arranged at the top of the punching block, a reset spring is arranged in the chute, one end of the reset spring is fixedly connected with the sliding block, and the other end of the reset spring is fixedly connected with the waist hole punching upper die. When the inner punch presses the punching block to move, the return spring is pressed to store energy, and when the inner punch is separated from the punching block, the return spring drives the punching block to reset.
As a further scheme of the invention: the periphery of the inner punch is provided with a protruding part matched with the punching block, an inclined plane wedged with the punching block is arranged outside the protruding part, and the thickness of the protruding part is the same as that of the punching block; the inner punch can also be in the shape of a circular truncated cone, and the inner punch is directly contacted with the punching block through the outer side face.
As a further scheme of the invention: and the part of the side blanking hole close to the outer side is provided with an inclined surface which inclines downwards. The waste materials which are punched can conveniently slide along the inclined plane.
As a further scheme of the invention: the punch rod is connected with a power mechanism, and the power mechanism can be a hydraulic cylinder or other linear driving mechanisms.
As a further scheme of the invention: and the lower stretching die of the stretching unit, the lower center hole punching die of the center hole punching unit and the lower waist hole punching die of the waist hole punching unit are arranged below the mechanical disc and respectively correspond to a station hole on the mechanical disc.
As a further scheme of the invention: the diameter of the station hole should be larger than the maximum width of any one of the upper stretching die of the stretching unit, the upper central hole punching die of the central hole punching unit and the upper waist hole punching die of the waist hole punching unit.
Compared with the prior art, the invention has the beneficial effects that: according to the rotary multi-station mechanical disc, the rotary mechanical disc drives the workpiece to move to the stretching and punching stations to sequentially perform stretching, center hole punching and waist hole punching, a die does not need to be replaced, the processing of multiple procedures is automatically completed, and the processing efficiency is greatly improved;
in addition, the waist hole punching unit is designed to transversely punch holes in a mode that the inner punch drives the punching block, and the waist hole punching quality can be improved by matching with the positioning of the upper die and the lower die.
Drawings
Fig. 1 is a schematic structural view of a multi-station processing device for a loudspeaker frame.
Fig. 2 is a schematic structural view of a material suction unit in the multi-station processing device for the loudspeaker frame.
Fig. 3 is a schematic structural diagram of a stretching unit in the loudspeaker frame multi-station processing device.
Fig. 4 is a schematic structural view of a center hole punching unit in the loudspeaker frame multi-station processing device.
Fig. 5 is a schematic structural view of a waist hole punching unit in the speaker frame multi-station processing device.
Fig. 6 is an enlarged view of fig. 5 at a.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-6, a multi-station processing device for a speaker frame comprises a mechanical disc 1, a stretching unit, a center hole punching unit and a waist hole punching unit, wherein a plurality of station holes 2 are arranged on the mechanical disc 1, a material sucking unit is arranged at the top of the mechanical disc 1 at the inner side of each station hole 2, the material sucking unit comprises a material sucking plate 3 and a material sucking cylinder 4, the material sucking cylinder 4 is fixedly arranged on the mechanical disc 1, a piston rod of the material sucking cylinder 4 is fixedly connected with the material sucking plate 3, and an electromagnet is arranged at the bottom of the material sucking plate 3;
the center of mechanical dish 1 is equipped with main shaft 5, and main shaft 5 passes through the bearing and installs on the base, and main shaft 5 still connects actuating mechanism, and this actuating mechanism includes gear motor, installs the driving gear on gear motor's the output shaft, and this driving gear meshes with the driven gear on the main shaft 5, and gear motor output power drives main shaft 5 through gear drive and rotates, and then drives mechanical dish 1 and rotate.
The mechanical disc 1 below the material suction plate 3 is provided with a slide rail 6, the bottom of the material suction plate 3 is provided with a slide block matched with the slide rail 6, and the slide block is connected with the slide rail 6 in a sliding manner.
Preferably, the electromagnets below the material suction plates 3 are respectively connected with a power supply through switches. And independent power on and power off control is realized.
The stretching unit comprises a stretching module, the stretching module comprises an upper stretching die 7 and a lower stretching die 8, a stretching male die 9 is arranged at the bottom of the upper stretching die 7, and a stretching female die 10 matched with the stretching male die 9 is arranged at the top of the lower stretching die 8; the top of the upper drawing die 7 is fixedly connected with a punch 100;
the center hole punching unit comprises a center hole punching upper die 11 and a center hole punching lower die 12, a center hole punching male die 13 is arranged at the bottom of the center hole punching upper die 11, a center hole punching female die 14 matched with the loudspeaker frame is arranged at the top of the center hole punching lower die 12, and a center blanking hole matched with the center hole punching male die 13 is arranged at the center of the center hole punching female die 14; the top of the upper die 11 for punching the central hole is fixedly connected with a punch 100;
the waist hole punching unit comprises a waist hole punching upper die 15 and a waist hole punching lower die 16, a punch mechanism is arranged in the waist hole punching upper die 15, the punch mechanism comprises a plurality of punching blocks 17 which are uniformly distributed in an annular array, and the inner surfaces of the punching blocks 17 are inclined planes; an inner punch 18 is arranged at the center of the upper die 15 for punching the waist hole, and a plurality of inclined planes which are wedged with the inner surface of the punching block 17 are arranged on the periphery of the inner punch 18;
a blind hole matched with the inner punch 18 is formed in the center of the upper die 15 for punching the waist hole, a rectangular hole matched with the punching block 17 is formed in the side face of the upper die 15 for punching the waist hole, and the rectangular hole is communicated with the blind hole; the blind hole provides a channel for the inner punch 18 to move up and down, and the bottom of the blind hole is in clearance fit with the bottom of the inner punch 18; the rectangular holes provide a path for punch block 17 to move laterally.
The top of the upper die 15 for punching the waist hole is fixedly connected with an upper die holder 19 for punching the waist hole, the top of the inner punch 18 is fixedly connected with a punch 100, the upper die holder 19 for punching the waist hole is provided with a through hole in clearance fit with the punch 100, and the punch 100 is in sliding connection with the upper die holder 19 for punching the waist hole;
a buffer mechanism is further arranged between the upper die holder 19 for punching the waist hole and the punch 100, the buffer mechanism comprises a buffer spring 20, the buffer spring 20 is arranged between a spring seat 21 on the punch 100 and the upper die holder 19 for punching the waist hole, and the spring seat 21 is fixedly connected with the punch 100. The buffer spring 20 has the function that when the punch 100 extrudes the punching block 17, the buffer spring 20 can apply pressure to the waist hole punching upper die 15, so that the positioning effect on the loudspeaker frame is kept, and the loudspeaker frame is prevented from shaking in the punching process.
A lower waist hole punching die 16 is arranged below the upper waist hole punching die 15, a die cavity matched with the loudspeaker frame is arranged on the lower waist hole punching die 16, and a plurality of side blanking holes matched with the punching blocks 17 are arranged on the lower waist hole punching die 16.
The punching rod 100 drives the upper die 15 for punching the waist hole to move downwards, the upper die 15 for punching the waist hole firstly contacts with the loudspeaker frame, the loudspeaker frame is positioned by matching with the lower die 16 for punching the waist hole, then the punching rod 100 continuously moves downwards to drive the inner punch 18 to move downwards, the punching block 17 is driven to move outwards through the wedged inclined plane to punch the waist hole of the loudspeaker frame, and the punched fertilizer is discharged from the blanking hole on the side surface to complete punching.
Preferably, be equipped with canceling release mechanical system between punching a hole piece 17 and the waist hole of dashing and go up mould 15, canceling release mechanical system is including seting up the spout 22 in punching a hole piece 17 top, and the top of punching a hole piece 17 is equipped with the slider that inlays in spout 22, is equipped with reset spring 23 in the spout 22, and reset spring 23's one end links firmly the slider, and the other end links firmly to dash waist hole and goes up mould 15. When the inner punch 18 extrudes the punching block 17 to move, the return spring 23 is extruded to store energy, and when the inner punch 18 is separated from the punching block 17, the return spring 23 drives the punching block 17 to return.
Preferably, the outer periphery of the inner punch 18 is provided with a protruding part matched with the punching block 17, the outer surface of the protruding part is provided with an inclined plane wedged with the punching block 17, and the thickness of the protruding part is the same as that of the punching block 17; the inner punch 18 may also be of truncated cone shape, in which case the inner punch 18 is in direct contact with the punch block 17 via the outer side.
Preferably, the part of the side blanking hole close to the outer side is provided with a downward inclined surface. The waste materials which are punched can conveniently slide along the inclined plane.
Preferably, the ram 100 is coupled to a power mechanism, which may be a hydraulic cylinder or other linear drive mechanism.
The stretching lower die 8 of the stretching unit, the center hole punching lower die 12 of the center hole punching unit and the waist hole punching lower die 16 of the waist hole punching unit are arranged below the mechanical disc 1 and respectively correspond to one station hole 2 on the mechanical disc 1. The diameter of the station hole 2 should be larger than the maximum width of any one of the upper drawing die 7 of the drawing unit, the upper center punching die 11 of the center punching unit and the upper waist punching die 15 of the waist punching unit. So that the station hole 2 does not obstruct the movement of the upper die.
It should be noted that the air inlet and the air outlet of the air cylinder are connected with an air source through a pipeline and a valve. The speed reducing motor is connected with a power supply through a switch.
The working principle of the invention is as follows: firstly, putting a cut plate into a lower stretching die 8, then driving the lower and upper dies to be matched through a punch 100, stretching the plate to form a body of a basin stand, then moving a material suction plate 3 to the position above a station hole 2 by the action of a material suction cylinder 4 on the inner side of the station hole 2, and then electrifying an electromagnet to adsorb the basin stand onto the material suction plate 3;
then the mechanical plate 1 rotates to rotate the basin frame to the position below the center hole punching unit, then the electromagnet is powered off, the basin frame falls on the center hole punching lower die 12, the material suction cylinder 4 drives the material suction plate 3 to retract, the punch rod 100 drives the center hole punching upper die 11 and the center hole punching lower die 12 to be matched, the basin frame is punched with a center hole, the material suction cylinder 4 moves to move the material suction plate 3 to the position above the station hole 2 after punching is completed, and then the electromagnet is powered on to adsorb the basin frame to the material suction plate 3;
then the mechanical plate 1 rotates to rotate the basin frame below the waist hole punching unit, then the electromagnet is powered off, the basin frame falls on the waist hole punching lower die 16, the material suction cylinder 4 drives the material suction plate 3 to retract, the punching rod 100 drives the waist hole punching upper die 15 and the waist hole punching lower die 16 to be matched, waist holes are punched on the basin frame, the material suction cylinder 4 moves to move the material suction plate 3 to the position above the station hole 2 after punching is completed, and then the electromagnet is powered on to adsorb the basin frame on the material suction plate 3;
then the mechanical plate 1 rotates to rotate the basin frame to a blanking station, the electromagnet is powered off, the basin frame falls on a material box or a conveying belt below the mechanical plate 1, and then the material suction cylinder 4 drives the material suction plate to reset.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (8)

1. A multi-station processing device for a loudspeaker frame is characterized by comprising a mechanical disc, a stretching unit, a central hole punching unit and a waist hole punching unit, wherein a plurality of station holes are formed in the mechanical disc, a material sucking unit is arranged at the top of the mechanical disc on the inner side of each station hole and comprises a material sucking plate and a material sucking cylinder, the material sucking cylinder is fixedly arranged on the mechanical disc, a piston rod of the material sucking cylinder is fixedly connected with the material sucking plate, and an electromagnet is arranged at the bottom of the material sucking plate; the center of the mechanical disc is provided with a main shaft, the main shaft is arranged on the base through a bearing, the main shaft is also connected with a driving mechanism, the driving mechanism comprises a speed reducing motor, a driving gear is arranged on an output shaft of the speed reducing motor, and the driving gear is meshed with a driven gear on the main shaft;
the stretching unit comprises a stretching module, the stretching module comprises an upper stretching die and a lower stretching die, a stretching male die is arranged at the bottom of the upper stretching die, and a stretching female die matched with the stretching male die is arranged at the top of the lower stretching die; the top of the upper stretching die is fixedly connected with a punch;
the center hole punching unit comprises a center hole punching upper die and a center hole punching lower die, a center hole punching male die is arranged at the bottom of the center hole punching upper die, a center hole punching female die matched with the loudspeaker frame is arranged at the top of the center hole punching lower die, and a center blanking hole matched with the center hole punching male die is arranged at the center of the center hole punching female die; the top of the upper die for punching the central hole is fixedly connected with a punch rod;
the waist hole punching unit comprises a waist hole punching upper die and a waist hole punching lower die, a punch mechanism is arranged inside the waist hole punching upper die, the punch mechanism comprises a plurality of punching blocks which are uniformly distributed in an annular array manner, and the inner surfaces of the punching blocks are inclined planes; an inner punch is arranged at the center of the upper die for punching the waist hole, and a plurality of inclined planes wedged with the inner surface of the punching block are arranged on the periphery of the inner punch; a blind hole matched with the inner punch is formed in the center of the upper die for punching the waist hole, a rectangular hole matched with the punching block is formed in the side face of the upper die for punching the waist hole, and the rectangular hole is communicated with the blind hole;
the top of the upper die for punching the waist hole is fixedly connected with an upper die holder for punching the waist hole, the top of the inner punch is fixedly connected with a punch rod, the upper die holder for punching the waist hole is provided with a through hole which is in clearance fit with the punch rod, and the punch rod is in sliding connection with the upper die holder for punching the waist hole; a buffer mechanism is also arranged between the upper die holder for punching the waist hole and the punch rod, the buffer mechanism comprises a buffer spring, the buffer spring is arranged between a spring seat on the punch rod and the upper die holder for punching the waist hole, and the spring seat is fixedly connected with the punch rod;
a lower waist hole punching die is arranged below the upper waist hole punching die, a die cavity matched with the loudspeaker frame is arranged on the lower waist hole punching die, and a plurality of side blanking holes matched with the punching blocks are formed in the lower waist hole punching die.
2. The multi-station processing device for the loudspeaker frame according to claim 1, wherein a slide rail is arranged on the mechanical disc below the material suction plate, a slide block matched with the slide rail is arranged at the bottom of the material suction plate, and the slide block is connected with the slide rail in a sliding manner.
3. The multi-station processing device for the loudspeaker frame according to claim 1, wherein a reset mechanism is arranged between the punching block and the upper kidney-hole punching die, the reset mechanism comprises a sliding groove arranged above the punching block, a sliding block embedded in the sliding groove is arranged at the top of the punching block, a reset spring is arranged in the sliding groove, one end of the reset spring is fixedly connected with the sliding block, and the other end of the reset spring is fixedly connected with the upper kidney-hole punching die.
4. The multi-station processing device for the loudspeaker frame according to claim 1, wherein a protruding part matched with the punching block is arranged on the periphery of the inner punch, an inclined surface wedged with the punching block is arranged outside the protruding part, and the thickness of the protruding part is the same as that of the punching block; the inner punch is in a circular truncated cone shape, and the inner punch is directly contacted with the punching block through the outer side face.
5. The multi-station processing device for the loudspeaker frame according to claim 1, wherein a part of the side blanking hole close to the outer side is provided with an inclined surface which inclines downwards.
6. The multi-station processing device for the loudspeaker frame according to claim 1, wherein the punch is connected with a power mechanism.
7. The loudspeaker frame multi-station processing device according to claim 1, wherein the drawing lower die of the drawing unit, the center hole punching lower die of the center hole punching unit and the waist hole punching lower die of the waist hole punching unit are arranged below the mechanical plate and respectively correspond to one station hole on the mechanical plate.
8. The multi-station processing device for the loudspeaker frame according to claim 1, wherein the diameter of the station hole is larger than the maximum width of any one of the upper drawing die of the drawing unit, the upper center punching die of the center punching unit and the upper waist punching die of the waist punching unit.
CN201910411795.8A 2019-05-16 2019-05-16 Multi-station processing device for loudspeaker frame Active CN110166924B (en)

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Publication number Priority date Publication date Assignee Title
CN110876111B (en) * 2019-11-27 2021-02-12 安徽井利电子有限公司 Multi-station processing device for loudspeaker frame
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