Automatic speaker base spring bending and disc mounting machine

Abstract

The application discloses a loudspeaker base frame elastic sheet bending and tray loading automatic machine, which is used for completing the assembly between the elastic sheet and the base frame which are combined on a material belt, and comprises a feeding channel and an assembly mechanism. The feeding channel is carried on a machine body to feed the material belt. The assembly mechanism comprises a base frame clamping unit, a downward bending punch, a side bending punch and a buckling punch. The base frame clamping unit clamps the base frame. The downward bending punch bends the elastic sheet vertically downward. The side bending punch bends the elastic sheet horizontally. The buckling punch acts on the inner side edge of the plating layer to buckle the hook foot part into the base frame. The effective stroke of the downward bending punch is less than the distance from the fixed end of the elastic sheet to the inner side edge of the plating layer. The effective stroke of the side bending punch is less than the distance from the fixed end of the elastic sheet to the inner side edge of the buckling punch. The side bending punch has a first end part for bending the elastic sheet horizontally and a second end part for shaping the side part of the root of the bent elastic sheet. The application improves the efficiency and reliability of the elastic sheet assembly and reduces the damage to the plating layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic assembly of the diaphragm of a loudspeaker, in particular to a loudspeaker base frame diaphragm bending and disc loading automatic machine. BACKGROUND

[0002] In order to facilitate the automatic production of the loudspeaker, realize the automatic feeding of the loudspeaker, the loudspeaker is designed into a tape form, and the base frames of each loudspeaker are connected through the edge tape. Figure 1 The loudspeaker usually has a diaphragm, which is connected with an external power supply to drive the loudspeaker to work. Figure 2 As shown in a diaphragm structure of a loudspeaker, one end of the diaphragm is a fixed end, that is, the fixed end is integrally molded with the base frame in the molding process of the base frame and forms a pad in the inner cavity of the base frame, and the other end is a floating end, which needs to be buckled into the buckle slot in the base frame in the subsequent process to complete the assembly.

[0003] The utility model patent with the authorized announcement number CN210024369U discloses a loudspeaker diaphragm and cover assembly machine, which bends the diaphragm through a first lower bending knife and a second lower bending knife for the first time, so that the diaphragm sequentially has a first bending part bent upward and a second bending part bent downward, then pushes the first bending part downward to the position directly below the cover through a second upper bending knife, and finally makes the diaphragm buckle into the cover through the side top block in the buckling mechanism acting on the side surface of the first bending part and the third top block acting on the lower end surface of the diaphragm.

[0004] This scheme realizes the automatic assembly of the diaphragm and improves the work efficiency, but still has certain limitations: the process is complicated and difficult to combine, and the material needs to be moved multiple times to complete the assembly. Specifically, the first bending part needs to be pre-bent, the first bending part cannot be combined with the downward bending process of the second upper bending knife, the downward bending process of the second upper bending knife cannot be combined with the side top process of the side top block, otherwise the downward bending process of the diaphragm will interfere with the side top block, so at least a first station for pre-bending the first bending part, a second station for downward bending the first bending part, and a third station for combining the side top pressure of the first bending part and the buckling of the diaphragm are needed; the reliability is poor, the first bending part needs to be pre-bent, and after the diaphragm is buckled into the cover, there is a risk that the diaphragm will be pulled out of the cover during the transportation and oscillation of the loudspeaker; the contact point is easily damaged, the diaphragm is buckled directly by the third top block, and when the hook foot part of the diaphragm is a plated hook foot part, the plated hook foot part is easily damaged by the abutment of the third top block. SUMMARY

[0005] The purpose of the present application is to provide a loudspeaker base frame diaphragm bending and disc loading automatic machine, which can improve the efficiency of diaphragm assembly, improve the reliability after assembly, and reduce the damage to the plated layer.

[0006] To achieve the above object, the present application adopts the following technical solutions:

[0007] A loudspeaker base frame spring bending and disc loading automatic machine is used for completing the assembly between the spring of a loudspeaker and the base frame of the loudspeaker, the floating end of the spring forms a hook foot part buckling the base frame and a plating layer attached to the hook foot part, and the machine comprises:

[0008] A machine body;

[0009] A feeding channel mounted on the machine body for conveying the material belt;

[0010] An assembly mechanism arranged on the feeding channel, comprising a base frame clamping unit, a lower bending punch, a side bending punch and a buckling punch, the base frame clamping unit clamps the base frame, the lower bending punch, the side bending punch and the buckling punch are arranged above the fixed side of the spring, below the lateral side of the fixed side of the spring and below the base frame respectively, in time sequence, the lower bending punch bends the spring vertically downward, the side bending punch bends the spring horizontally, and the buckling punch acts on the inner side edge of the plating layer to buckle the hook foot part into the base frame, wherein the effective stroke of the lower bending punch is smaller than the distance from the fixed end of the spring to the inner side edge of the plating layer, and the effective stroke of the side bending punch is smaller than the distance from the fixed end of the spring to the inner side edge of the buckling punch; the side bending punch has a first end portion for bending the spring horizontally and a second end portion for shaping the lateral part of the root of the bent spring.

[0011] Further, the base frame clamping unit comprises a lifting bottom die and a lifting upper die, the lifting bottom die is provided with a supporting column supporting the base frame, the lifting upper die comprises an upper die seat and a pressing block, the lower bending punch follows the lifting of the upper die seat, a sliding cavity is formed in the upper die seat in the vertical direction, the first end of the pressing block is slidingly connected in the sliding cavity, the second end of the pressing block extends out of the upper die seat, a spring is arranged between the first end of the pressing block and the top of the sliding cavity, and the compressible space of the spring is larger than the stroke of the lower bending punch.

[0012] Further, the shaping mechanism further comprises a pre-shaping punch and a post-shaping punch, the feeding channel has an arc groove corresponding to the arc part of the spring, the pre-shaping punch is arranged before the lower bending punch and has a first arc protrusion adapted to the arc groove to shape the arc part of the spring, and the post-shaping punch is arranged after the buckling punch and has a second arc protrusion for shaping the root of the arc part of the spring.

[0013] Further, the side folding punch is concave to form a punch slot corresponding to the elastic sheet and a clearance slot formed by the punch slot towards the side where the base frame is located, the front end of the punch slot forms the first end, the rear slot wall of the punch slot forms the second end, the front end of the clearance slot and the front end of the slot wall of the punch slot protrude from the front end of the punch slot and form a horn corresponding to the punch slot.

[0014] Further, a floating bottom plate mechanism is further included, the floating bottom plate mechanism includes a floating bottom plate, a support block and a transverse moving rod, the floating bottom plate is slidably arranged above the machine body and supports the feeding channel, the upper end of the support block is connected to the center of the floating bottom plate, the lower end of the support block penetrates the machine body downwards and forms an inclined slot, the transverse moving rod includes a transverse moving seat, a transverse rod, a transverse moving pin and a hand wheel seat, the transverse moving seat is connected to the lower part of the machine body, the transverse rod is slidably connected in the transverse moving seat, the transverse rod is provided with a transverse moving pin corresponding to the inclined slot, and the hand wheel seat adjusts the transverse moving amount of the transverse rod.

[0015] Further, a traction mechanism arranged below the feeding channel is further included, the traction mechanism includes a traction motor and a traction wheel driven by the output end of the traction motor, the material belt is arrayed with traction holes in the length direction, and the traction wheel is provided with traction pins corresponding to the traction holes in the circumferential direction.

[0016] Further, a cutting mechanism arranged at the rear end of the assembly mechanism is further included, the cutting mechanism includes a blade seat and a lever frame, the blade seat is elastically mounted on the feeding channel by a spring, the blade seat has a blade opening through which the material belt passes, one end of the lever frame is connected with a lifting actuator, and the other end of the lever frame is located above the blade seat to press the blade seat.

[0017] Further, a material moving mechanism arranged at the rear end of the cutting mechanism is further included, the material moving mechanism includes a sliding base, a first clamping jaw unit and a material moving cylinder, the sliding base is slidably arranged on the machine body in the direction of the feeding channel, the first clamping jaw unit is carried on the sliding base, the clamping jaw of the first clamping jaw unit clamps the cut material belt, and the material moving cylinder is arranged in the direction of the feeding channel, one end of the material moving cylinder is connected with the machine body, and the other end drives the sliding base to move the material belt clamped by the first clamping jaw unit backwards.

[0018] Further, a material removing mechanism is arranged at the rear end of the cutting mechanism, and the material removing mechanism comprises a base frame positioning seat, a second clamping jaw unit, an eccentric oscillation unit and a waste material channel, the base frame positioning seat bears the base frame in the material belt clamped by the first clamping jaw unit, the clamping jaw of the second clamping jaw unit clamps the waste material of the material belt, the oscillation end of the eccentric oscillation unit is connected to the air cylinder of the second clamping jaw unit to drive the up and down oscillation thereof, and the waste material channel is arranged below the second clamping jaw unit to discharge the waste material clamped thereby.

[0019] Further, a material removing mechanism is arranged at the rear end of the cutting mechanism, and the material removing mechanism comprises a base frame positioning seat, a second clamping jaw unit, an eccentric oscillation unit and a waste material channel, the base frame positioning seat bears the base frame in the material belt clamped by the first clamping jaw unit, the clamping jaw of the second clamping jaw unit clamps the waste material of the material belt, the oscillation end of the eccentric oscillation unit is connected to the air cylinder of the second clamping jaw unit to drive the up and down oscillation thereof, and the waste material channel is arranged below the second clamping jaw unit to discharge the waste material clamped thereby.

[0020] After the above technical scheme is adopted, the present application has the following advantages compared with the background art.

[0021] 1. The present application directly bends the elastic sheet vertically downward by the lower bending punch, which requires one station; then directly bends the elastic sheet horizontally by the side bending punch, and buckles the hook foot into the base frame by the buckling punch. Since the effective stroke of the side bending punch is smaller than the distance from the fixed end of the elastic sheet to the inner edge of the buckling punch, the side bending punch and the buckling punch can be combined in one station, so that the elastic sheet can be buckled and installed by only two stations. In addition, the side bending punch also combines a second end part for shaping the side part of the root of the bent elastic sheet, so that the elastic sheet and the base frame can be reliably buckled.

[0022] 2. In the present application, the effective stroke of the lower bending punch is smaller than the distance from the fixed end of the elastic sheet to the inner edge of the plating layer, the buckling punch only acts on the inner edge of the plating layer, and the effective stroke of the side bending punch is also smaller than the distance from the fixed end of the elastic sheet to the inner edge of the buckling punch, so that none of the processes will contact the plating layer, avoiding damage to the plating layer.

[0023] 3. The present application does not have a first bending part for pre-bending, so that the buckled elastic sheet will not be accidentally unbuckled due to excessive stress of the first bending part.

[0024] 4. The application is provided with a pre-shaping punch, and the feeding channel is also provided with an arc groove corresponding to the arc part of the elastic sheet. Through the shaping of the pre-shaping punch and the arc groove, the shape of the elastic sheet is kept relatively consistent when entering the assembly mechanism, improving the accuracy of the subsequent assembly mechanism bending and the reliability after assembly. In addition, the application is provided with a post-shaping punch, which shapes the root of the arc part of the elastic sheet, so that the elastic sheet is more fitted with the base frame and further reduces the stress of the bending part of the elastic sheet at the fixed end, improving the reliability after the elastic sheet is buckled.

[0025] 5. The side folding punch of the application is designed with a punch groove and a displacement groove. The horn makes it easy to align the elastic sheet with the punch groove to bend the elastic sheet from vertical to horizontal. At the same time, the groove wall of the punch groove and the rib wall of the base frame can correct the elastic sheet during bending, avoiding the skew of the hook foot part relative to its fixed end, so that the buckling punch can easily buckle the hook foot part of the elastic sheet into the base frame.

[0026] 6. The application designs a floating bottom plate mechanism that is easy to adjust, so that the height of the feeding channel can be adjusted flexibly, facilitating the coordinated adjustment of the feeding channel with the traction mechanism and the shaping mechanism.

[0027] 7. The application is provided with a cutting mechanism driven by a lever frame, which has a compact structure and can realize double cutting, improving the reuse rate of components.

[0028] 8. The application is provided with a material removal mechanism. The material removal mechanism clamps the waste of the material belt through the clamping jaw, and then through the high-frequency oscillation of the eccentric oscillation unit, the root of the waste part is fatigued and fractured, so as to separate from the base frame. Compared with the common cutting knife cutting method, the clamping jaw oscillation method can remove the waste of multiple stations at a time, and does not need to be close to the base frame like a cutting knife, so the structure layout space is easy to adjust, and compared with the cutting knife, it will not cause the folding phenomenon of the cutting knife after passivation, so that the waste can be effectively separated.

[0029] 9. The material discharge clamping jaw unit in the material discharge mechanism of the application can realize clamping jaw distance change, so as to solve the transfer problem that the distance between the base frames on the material belt is not consistent with the distance between the base frames on the last material disc. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of a loudspeaker material belt;

[0031] Figure 2 It is a schematic diagram of the base frame and the elastic sheet of a loudspeaker;

[0032] Figure 3 It is a schematic diagram of the assembly of the application;

[0033] Figure 4 It is a schematic diagram of the traction mechanism and the assembly mechanism of the application;

[0034] Figure 5 This is a schematic diagram of the traction mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the pre-forming punch of the present invention (with material strip);

[0036] Figure 7 This is a schematic diagram of the pre-forming punch of the present invention (without material strip);

[0037] Figure 8 This is a schematic diagram of the process flow of the present invention;

[0038] Figure 9 This is a schematic diagram of the assembly mechanism of the present invention;

[0039] Figure 10 This is a schematic diagram of the internal structure of the assembly mechanism of the present invention (with material belt);

[0040] Figure 11 This is a schematic diagram of the internal structure of the assembly mechanism of the present invention (without material strip);

[0041] Figure 12 This is a schematic diagram of the side-folding punch of the present invention;

[0042] Figure 13 This is a schematic diagram showing the cooperation between the side-folding punch and the base frame of the present invention;

[0043] Figure 14 This is a schematic diagram of the structure of the post-forming punch of the present invention;

[0044] Figure 15 This is a schematic diagram of the floating base plate mechanism of the present invention;

[0045] Figure 16 This is a schematic diagram of the material transfer mechanism and the material dismantling mechanism of the present invention;

[0046] Figure 17 This is a schematic diagram of the blade holder structure of the present invention;

[0047] Figure 18 This is a schematic diagram of the structure of the second gripper unit and the eccentric oscillation unit of the present invention;

[0048] Figure 19 This is a schematic diagram of the feeding mechanism of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] 100. Speaker; 110. Base frame; 111. Clip; 112. Rib; 120. Spring; 121. Fixed end; 122. Arc; 123. Hook foot; 1231. Plating; 130. Scrap; 140. Traction hole;

[0051] 200, body; 210, rack;

[0052] 300, floating bottom plate mechanism; 310, feeding passage arc; 311, arc groove; 320, floating bottom plate; 330, support block; 331, inclined groove; 340, transverse moving rod; 341, transverse moving seat; 342, transverse rod; 343, transverse moving pin; 344, hand wheel seat;

[0053] 400, traction mechanism; 410, traction motor; 420, traction wheel; 421, traction pin;

[0054] 500, assembly mechanism; 510, pre-shaping unit; 511, pre-shaping cylinder; 512, pre-shaping punch; 5121, first arc protrusion; 520, base frame clamping unit; 521, lifting lower die; 5211, lower die cylinder; 5212, lower die seat; 5213, support column; 522, lifting upper die; 5221, upper die seat; 52211, sliding cavity; 5222, upper die cylinder; 5223, pressing block; 52231, pressing block protrusion; 52232, spring groove; 530, lower folding punch; 540, side folding punch; 541, side folding cylinder; 542, punch groove; 543, clearance groove; 544, horn; 545, second end; 550, buckling punch; 551, buckling cylinder; 560, post-shaping unit; 561, upper pressing block; 562, post-shaping punch; 5621, second arc protrusion; 563, post-shaping cylinder;

[0055] 600, cutting mechanism; 610, blade seat; 611, blade edge; 620, lever frame;

[0056] 700, material moving mechanism; 710, sliding base; 720, first clamping jaw unit; 721, first clamping jaw cylinder; 722, first clamping jaw; 730, material moving cylinder;

[0057] 800, material disassembling mechanism; 810, base frame positioning seat; 820, second clamping jaw unit; 821, connecting groove; 830, eccentric oscillation unit; 831, motor; 832, shaft device; 833, eccentric disc; 8331, eccentric pin; 840, waste material passage;

[0058] 900, material feeding mechanism; 910, material moving arm; 911, transverse material moving unit; 912, vertical material moving unit; 920, material feeding clamping jaw unit; 921, material feeding seat plate; 922, variable distance sliding table; 9221, variable distance pin; 923, variable distance cylinder; 924, variable distance plate; 9241, variable distance groove; 925, material feeding clamping jaw. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, it should be noted that:

[0060] The terms “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer” are based on the orientation or positional relationship shown in the accompanying drawings and are used merely for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element of the present invention must have a specific orientation and therefore should not be construed as a limitation of the present invention.

[0061] When an element is referred to as "fixed to," "set on," or "located on" another element, it can be directly on or indirectly on that other element. When an element is referred to as "connected to," it can be directly connected to or indirectly connected to that other element.

[0062] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example

[0063] Please refer to Figure 1 As shown, the base frame 110 of each speaker 100 is connected by an edge strip. The spring 120 is injection molded into the base frame 110 during the injection molding process. Therefore, the strip contains the base frame 110, the spring 120 and the waste material 130 connecting the base frame 110. The edge of the waste material 130 forms a hole, which is used as the traction hole 140 and positioning hole of the strip.

[0064] like Figure 2 As shown, the spring piece 120 includes, from the side where the base frame 110 is located outwards, a fixed end 121, an arc portion 122, and a hook portion 123, with a plating layer 1231 on the hook portion 123. The base frame 110 has a fastening groove 111. After bending the fixed end 121, the hook portion 123 is fastened into the fastening groove 111 in the base frame 110 to complete the assembly.

[0065] Please refer to Figure 3As shown, the present invention discloses an automatic assembly machine for speaker 100 spring 120, used to complete the assembly between spring 120 and base frame 110 as described above. It includes a machine body 200, a feeding channel, a traction mechanism 400, an assembly mechanism 500, a floating base plate mechanism 300, a cutting mechanism 600, a material transfer mechanism 700, a material removal mechanism 800, and a material unloading mechanism 900.

[0066] The machine body 200 is equipped with a material rack 210 for mounting a disc-shaped material belt, thereby feeding material into the feeding channel. The feeding channel is mounted on the machine body 200 for conveying the material belt.

[0067] Please refer to Figure 4 and Figure 5 As shown, the traction mechanism 400 is located below the feeding channel. The traction mechanism 400 includes a traction motor 410 and a traction wheel 420 driven by the output end of the traction motor 410. The material belt has traction holes 140 arranged in an array along its length direction, and the traction wheel 420 is provided with traction pins 421 corresponding to the traction holes 140 in its circumferential direction. Thus, when the traction motor 410 drives the traction wheel 420 to rotate, the traction pins 421 distributed in the circumferential direction on the traction wheel 420 will be inserted into the traction holes 140 in sequence, thereby driving the material belt forward.

[0068] Please refer to Figure 6 and Figure 7 As shown, the assembly mechanism 500 includes a pre-shaping unit 510, which includes a pre-shaping cylinder 511 and a pre-shaping punch 512. The pre-shaping punch 512 is located above the feeding channel. The pre-shaping cylinder 511 drives the pre-shaping punch 512 to move up and down. The feeding channel has an arc groove 311 corresponding to the arc portion 122 of the spring sheet 120. The pre-shaping punch 512 has a first arc protrusion 5121 that is adapted to the arc groove 311 to shape the arc portion 122 of the spring sheet 120.

[0069] Thus, through the shaping of the pre-shaped punch 512 and the arc groove 311, the shape of the spring piece 120 is relatively consistent when it enters the assembly mechanism 500, making it less likely to get stuck in the feeding channel. It also improves the consistency of the bending of the spring piece 120 by the subsequent assembly mechanism 500, making the spring piece 120 easier to assemble.

[0070] Please refer to Figure 4 and Figure 8 As shown, the assembly mechanism 500 is located on the feeding channel, and it also includes a base frame clamping unit 520, a downward folding punch 530, a side folding punch 540, and a snap-fit ​​punch 550.

[0071] The base frame clamping unit 520 is used to clamp the base frame 110, and includes a lifting bottom mold 521 and a lifting upper mold 522.

[0072] The upper die 522 comprises an upper die seat 5221, an upper die cylinder 5222 and a pressing block 5223. The upper die cylinder 5222 drives the upper die seat 5221 to move up and down. The upper die seat 5221 has a sliding cavity 52211 formed in the upper die seat 5221 along the up and down direction. The first end of the pressing block 5223 is slidably connected to the sliding cavity 52211 through a pressing block protrusion 52231, and the second end of the pressing block 5223 extends out of the upper die seat 5221. A spring is arranged between the first end of the pressing block 5223 and the top of the sliding cavity 52211, and the compressible space of the spring is greater than the stroke of the lower bending punch 530.

[0073] The lower die 521 comprises a lower die cylinder 5211, a lower die seat 5212 and a supporting column 5213. The lower die cylinder 5211 drives the lower die seat 5212 to move up and down. A plurality of supporting columns 5213 are arranged on the lower die seat 5212 to support the base frame 110. In this way, when the upper die cylinder 5222 and the lower die cylinder 5211 act, the pressing block 5223 moves downward, and the supporting column 5213 moves upward, thereby clamping the base frame 110.

[0074] The lower bending punch 530 is arranged above the fixed side of the spring sheet 120 corresponding to the base frame clamping unit 520, and moves up and down with the upper die seat 5221. In this way, when the upper die seat 5221 moves downward, the pressing block 5223 first contacts the base frame 110 and clamps the base frame 110 together with the supporting column 5213, and then the upper die continues to move downward, and the lower bending punch 530 completes the stamping of the spring sheet 120, bending the spring sheet 120 from a horizontal state to a vertical downward state. Then the upper die resets upward, and during the resetting process, the lower bending punch 530 first separates from the spring sheet 120, and when the pressing block 5223 reaches its sliding stroke in the sliding cavity 52211, the upper die seat 5221 drives the pressing block 5223 to move upward, thereby releasing the clamping of the base frame 110. Here, the effective stroke of the lower bending punch 530 is less than the distance from the fixed end 121 of the spring sheet 120 to the inner edge of the plating layer 1231, so as to avoid damaging the plating layer 1231. The effective stroke refers to the distance between the position where the punch contacts the spring sheet 120 and the final position where the punch stops.

[0075] The side bending punch 540 is arranged below the fixed side of the spring sheet 120 corresponding to the base frame clamping unit 520. After the spring sheet 120 is bent vertically downward as described above, it is pulled to the position of the side bending punch 540. When the pressing block 5223 and the supporting column 5213 clamp the base frame 110, the side bending cylinder 541 drives the side bending punch 540 to move horizontally to bend the spring sheet 120 horizontally.

[0076] The clamping punch 550 is arranged below the base frame 110 corresponding to the base frame clamping unit 520. After the elastic sheet 120 is horizontally bent, the clamping punch 550 then moves upward and acts on the inner side edge of the plating layer 1231 to clamp the hooking foot part 123 into the base frame 110. That is, the head of the clamping punch 550 is small, and the outer side of the head only acts on the inner side edge of the plating layer 1231, and the inner side of the head must be side-bent.

[0077] The present application directly bends the elastic sheet 120 downward vertically by the downward-bending punch 530, which requires one station; then directly bends the elastic sheet 120 horizontally by the side-bending punch 540, and clamps the hooking foot part 123 into the base frame 110 by the clamping punch 550. Since the effective stroke of the side-bending punch 540 is smaller than the distance from the fixed end 121 of the elastic sheet 120 to the inner side edge of the clamping punch 550, the side-bending punch 540 and the clamping punch 550 can be combined in one station, and thus the clamping installation of the elastic sheet 120 can be completed by only two stations.

[0078] In addition, the effective stroke of the downward-bending punch 530 is smaller than the distance from the fixed end 121 of the elastic sheet 120 to the inner side edge of the plating layer 1231, the clamping punch 550 only acts on the inner side edge of the plating layer 1231, and the effective stroke of the side-bending punch 540 is also smaller than the distance from the fixed end 121 of the elastic sheet 120 to the inner side edge of the clamping punch 550. Therefore, no matter which station, no contact with the plating layer 1231 occurs, and damage to the plating layer 1231 is avoided.

[0079] In addition, the side-bending punch 540 has a first end part for horizontally bending the elastic sheet 120 and a second end part 545 for shaping the side of the root of the horizontally bent elastic sheet 120. The side of the root of the horizontally bent elastic sheet 120 is shaped by the second end part 545, so that the elastic sheet 120 can be reliably clamped with the base frame 110.

[0080] Please refer to Figure 12 and 13 In a preferred embodiment, as shown in the drawings, the side-bending punch 540 is concave to form a punch groove 542 corresponding to the elastic sheet 120 and a giving-way groove 543 formed by the punch groove 542 towards the side where the base frame 110 is located. The giving-way groove 543 gives way to the rib wall 112 of the lower end of the base frame 110. The front end of the punch groove 542 forms the aforementioned first end part, the rear groove wall of the punch groove 542 forms the aforementioned second end part 545, the front end of the giving-way groove 543 and the front end of the groove wall of the punch groove 542 protrude from the front end of the punch groove 542 and form a horn mouth 544 corresponding to the punch groove 542.

[0081] Thus, the side folding punch 540 is designed with the punch groove 542 and the displacement groove 543, and the horn mouth 544 is used to easily align the bullet 120 to fold the bullet 120 from vertical to horizontal. At the same time, the groove wall of the punch groove 542 and the rib wall 112 of the base frame 110 can correct the bullet 120 during the folding process to avoid the hooking foot 123 of the bullet 120 being skewed relative to the fixed end 121, so that the hooking foot 123 of the bullet 120 can be easily buckled into the base frame 110 by the buckling punch 550.

[0082] As shown in Figure 7 and Figure 14 The assembly mechanism 500 further includes a rear shaping unit 560, which is arranged behind the buckling punch 550 and includes an upper pressing block 561, a rear shaping punch 562, and a rear shaping cylinder 563. The upper pressing block 561 is elastically mounted on the upper die seat 5221 by a spring and descends with the upper die seat 5221, and the rear shaping punch 562 is driven upward by the rear shaping cylinder 563. The rear shaping punch 562 is provided with a second arc protrusion 5621 for shaping the root of the arc portion 122 of the bullet 120. Through the shaping, the folded portion of the bullet 120 is more closely fitted with the base frame 110, and at the same time, the hooking foot 123 can be moved away from the fixed side of the bullet 120, so that the bullet 120 is more tightly buckled with the buckling groove 111 in the base frame 110.

[0083] As shown in Figure 15 The floating bottom plate mechanism 300 includes a floating bottom plate 320, a support block 330, and a transverse moving rod 340. The floating bottom plate 320 is slidably arranged above the machine body 200 and supports the feeding channel by guide columns. The upper end of the support block 330 is connected to the center of the floating bottom plate 320 to support the floating bottom plate 320, and the lower end of the support block 330 penetrates downward through the machine body 200 and forms an inclined groove 331. The transverse moving rod 340 includes a transverse moving seat 341, a transverse rod 342, a transverse pin 343, and a hand wheel seat 344. The transverse moving seat 341 is connected to the lower part of the machine body 200, the transverse rod 342 is slidably connected in the transverse moving seat 341, and the transverse pin 343 corresponding to the inclined groove 331 is arranged on the transverse rod 342. Thus, by rotating the hand wheel of the hand wheel seat 344, the transverse amount of the transverse rod 342 can be adjusted, so that the height of the feeding channel can be flexibly adjusted, and the coordinated adjustment of the feeding channel with the traction mechanism 400 and the shaping mechanism can be easily realized.

[0084] As shown in Figure 16 and Figure 17As shown, the cutting mechanism 600 is arranged at the rear end of the assembling mechanism 500, and is used to cut the continuous material belt into a segmented material belt. For example, if the tray is arranged with 6 components in each row, the material belt is cut into 6 segments. The cutting mechanism 600 includes a blade holder 610 and a lever frame 620. The blade holder 610 is elastically mounted on the feeding channel by a spring, and has a blade opening 611 through which the material belt passes. One end of the lever frame 620 is connected to the lifting actuator, and the other end of the lever frame 620 is arranged above the blade holder 610 to press the blade holder 610. The cutting mechanism 600 driven by the lever frame 620 has a compact structure, can realize double cutting, and improves the reuse rate of components.

[0085] As shown in Figure 16 The material moving mechanism 700 is arranged at the rear end of the cutting mechanism 600, and includes a sliding base 710, a first jaw unit 720, and a material moving cylinder 730. The sliding base 710 is slidably arranged on the machine body 200 along the feeding channel. The first jaw unit 720 is mounted on the sliding base 710, and the jaws of the first jaw unit 720 hold the cut material belt. The material moving cylinder 730 is arranged along the feeding channel, and one end of the material moving cylinder 730 is connected to the machine body 200, and the other end drives the sliding base 710 to move the material belt held by the first jaw unit 720 backward. In this way, the material moving mechanism 700 realizes the function of transporting the segmented material belt generated by the cutting mechanism 600 backward.

[0086] As shown in Figure 18 The material moving mechanism 700 is arranged at the rear end of the cutting mechanism 600, and includes a sliding base 710, a first jaw unit 720, and a material moving cylinder 730. The sliding base 710 is slidably arranged on the machine body 200 along the feeding channel. The first jaw unit 720 is mounted on the sliding base 710, and the jaws of the first jaw unit 720 hold the cut material belt. The material moving cylinder 730 is arranged along the feeding channel, and one end of the material moving cylinder 730 is connected to the machine body 200, and the other end drives the sliding base 710 to move the material belt held by the first jaw unit 720 backward. In this way, the material moving mechanism 700 realizes the function of transporting the segmented material belt generated by the cutting mechanism 600 backward.

[0087] The disassembling mechanism 800 of the present application bears the base frame 110 through the base frame positioning seat 810, then a pressing structure presses the base frame 110, then the second clamping jaw unit 820 clamps the scrap 130 of the material belt, then the high-frequency oscillation of the eccentric oscillation unit 830 causes the root of the scrap 130 part to fatigue fracture, so as to separate from the base frame 110. Compared with the common cutting knife cutting mode, the clamping jaw oscillation mode can disassemble the scrap 130 of multiple stations at one time, and does not need to be close to the base frame 110 like the cutting knife, so that the structure layout space is easy to adjust, and the cutting knife does not produce the folding phenomenon after the cutting knife is blunt, so that the scrap 130 can be effectively separated.

[0088] As shown in Figure 19 The present application also includes a discharging mechanism 900 arranged at the rear end of the disassembling mechanism 800. The discharging mechanism 900 includes a transfer arm 910 and a discharging clamping jaw unit 920. The transfer arm 910 has a transverse transfer unit 911 and a vertical transfer unit 912. The discharging clamping jaw unit 920 includes a discharging seat plate 921, a plurality of variable-distance sliding platforms 922, a variable-distance cylinder 923, a variable-distance plate 924, and a plurality of discharging clamping jaws 925. The discharging seat plate 921 is connected to the vertical transfer unit 912. The plurality of variable-distance sliding platforms 922 are arranged along the width direction of the discharging seat plate 921. Each variable-distance sliding platform 922 is provided with a variable-distance pin 9221. The variable-distance cylinder 923 is connected to the discharging seat plate 921, and the output end thereof is connected to the variable-distance plate 924. The variable-distance plate 924 is provided with a plurality of variable-distance grooves 9241 corresponding to each variable-distance pin 9221. The plurality of discharging clamping jaws 925 are connected to each variable-distance sliding platform 922 one by one. In this way, the variable-distance cylinder 923 drives the variable-distance plate 924, and then the variable-distance sliding platform 922 slides, so as to change the distance of the discharging clamping jaw 925, thereby solving the transfer problem that the interval of the base frame 110 on the material belt is inconsistent with the interval of the base frame 110 on the final material disc. In addition, the discharging clamping jaw unit 920 here serves as the pressing structure for pressing the base frame 110 in the disassembling mechanism 800.

[0089] The discharging mechanism 900 delivers the completed loudspeaker 100 to the subsequent disc loading mechanism to perform the subsequent process.

[0090] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic machine for bending and mounting speaker base springs, used to assemble speaker springs laminated on a strip with the speaker base, wherein the floating end of the spring forms a hook portion that engages with the base and a plating layer for a protruding portion attached to the hook portion, characterized in that, It includes: Machine body; Feeding channel, mounted on the machine body for conveying the material belt; Assembly mechanism provided on the feeding channel, which includes a base frame clamping unit, a lower folding punch, a side folding punch and a buckling punch, the base frame clamping unit clamps the base frame, the lower folding punch, the side folding punch and the buckling punch are respectively provided above the fixed side of the sheet, below the lateral side of the fixed side of the sheet and below the base frame corresponding to the base frame clamping unit, in time sequence, the lower folding punch downwardly bends the sheet vertically downward, the side folding punch horizontally bends the sheet, and the buckling punch upwardly acts on the inner side edge of the plating layer to buckle the hooking foot into the base frame, wherein the effective stroke of the lower folding punch is less than the distance from the fixed end of the sheet to the inner side edge of the plating layer, and the effective stroke of the side folding punch is less than the distance from the fixed end of the sheet to the inner side edge of the buckling punch; the side folding punch has a first end portion for horizontally bending the sheet and a second end portion for shaping the lateral portion of the root portion of the sheet after being horizontally bent.

2. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: The base frame clamping unit includes a lifting bottom die and a lifting upper die, the lifting bottom die is provided with a supporting column supporting the base frame, the lifting upper die includes an upper die seat and a pressing block, the lower folding punch follows the lifting of the upper die seat, a sliding cavity is formed in the upper die seat in the up-down direction, the first end of the pressing block is slidingly connected in the sliding cavity, the second end of the pressing block extends out of the upper die seat, a spring is arranged between the first end of the pressing block and the cavity top of the sliding cavity, and the compressible space of the spring is greater than the stroke of the lower folding punch.

3. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: The assembly mechanism further includes a pre-shaping punch and a post-shaping punch, the feeding channel has an arc groove corresponding to the arc portion of the sheet, the pre-shaping punch is arranged before the lower folding punch and has a first arc protrusion adapted to the arc groove to shape the arc portion of the sheet; The post-shaping punch is arranged after the buckling punch and is provided with a second arc protrusion for shaping the root portion of the arc portion of the sheet.

4. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: The side folding punch is concave to form a punching groove corresponding to the sheet and a giving slot formed by the punching groove towards the side of the base frame, the front end of the punching groove forms the first end portion, the rear groove wall of the punching groove forms the second end portion, the front end of the giving slot and the front end of the groove wall of the punching groove protrude from the front end of the punching groove and form a horn corresponding to the punching groove.

5. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: It also includes a floating bottom plate mechanism, the floating bottom plate mechanism includes a floating bottom plate, a support block and a transverse moving rod, the floating bottom plate is slidingly arranged above the machine body and supports the feeding channel, the upper end of the support block is connected to the center of the floating bottom plate, the lower end of the support block penetrates downwardly through the machine body and forms an inclined slot, the transverse moving rod includes a transverse moving seat, a transverse rod, a transverse moving pin and a hand wheel seat, the transverse moving seat is connected below the machine body, the transverse rod is slidingly connected in the transverse moving seat, the transverse rod is provided with a transverse moving pin corresponding to the inclined slot, and the hand wheel seat adjusts the transverse moving amount of the transverse rod.

6. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: The feeding channel is provided with a traction mechanism below the feeding channel, the traction mechanism comprising a traction motor and a traction wheel driven by the output end of the traction motor, the material belt being provided with traction holes along the length direction of the material belt, and the traction wheel being provided with traction pins corresponding to the traction holes.

7. The loudspeaker spider bending and disc mounting automatic machine of claim 1, wherein: The feeding channel is provided with a cutting mechanism at the rear end of the feeding channel, the cutting mechanism comprising a blade seat and a lever frame, the blade seat being elastically mounted on the feeding channel by a spring, the blade seat having a blade opening through which the material belt passes, one end of the lever frame being connected to a lifting actuator, and the other end of the lever frame being located above the blade seat to press the blade seat.

8. The loudspeaker spider bending and disc mounting automatic machine of claim 7, wherein: The cutting mechanism is provided with a material moving mechanism at the rear end of the cutting mechanism, the material moving mechanism comprising a sliding base, a first clamping jaw unit and a material moving cylinder, the sliding base being slidably arranged on the machine body along the feeding channel, the first clamping jaw unit being mounted on the sliding base, the clamping jaw of the first clamping jaw unit clamping the cut material belt, and the material moving cylinder being arranged along the feeding channel, one end of the material moving cylinder being connected to the machine body and the other end of the material moving cylinder driving the sliding base to move the material belt clamped by the first clamping jaw unit rearward.

9. The loudspeaker spider bending and disc mounting automatic machine of claim 8, wherein: The cutting mechanism is provided with a material removing mechanism at the rear end of the cutting mechanism, the material removing mechanism comprising a base frame positioning seat, a second clamping jaw unit, an eccentric oscillation unit and a waste material channel, the base frame positioning seat clamping the base frame in the material belt clamped by the first clamping jaw unit, the clamping jaw of the second clamping jaw unit clamping the waste material of the material belt, the oscillation end of the eccentric oscillation unit being connected to the cylinder of the second clamping jaw unit to drive the second clamping jaw unit to oscillate up and down, and the waste material channel being arranged below the second clamping jaw unit to discharge the waste material clamped by the second clamping jaw unit.

10. The loudspeaker spider bending and disc mounting automatic machine of claim 9, wherein: The material removing mechanism is provided with a material discharging mechanism at the rear end of the material removing mechanism, the material discharging mechanism comprising a material moving arm and a material discharging clamping jaw unit, the material moving arm having a horizontal material moving unit and a vertical material moving unit, the material discharging clamping jaw unit comprising a material discharging seat plate, a plurality of variable distance sliding bases, a variable distance cylinder, a variable distance plate and a plurality of material discharging clamping jaws, the material discharging seat plate being connected to the vertical material moving unit, the plurality of variable distance sliding bases being arranged along the width direction of the material discharging seat plate, each variable distance sliding base being provided with a variable distance pin, the variable distance cylinder being connected to the material discharging seat plate and the output end of the variable distance cylinder being connected to the variable distance plate, the variable distance plate being provided with a plurality of variable distance grooves corresponding to the variable distance pins, and the plurality of material discharging clamping jaws being connected to the plurality of variable distance sliding bases one by one.

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