Voice coil bent wire positioning mechanism

Abstract

The utility model relates to the technical field of loudspeaker voice coil production equipment, in particular to a voice coil wire bending positioning mechanism, which comprises a base and a voice coil jig, and is characterized in that the base is provided with a lifting stop unit and a wire bending unit; the wire bending unit comprises a rotation driving assembly and a support, the support is provided with a pressing-down driving assembly, and the pressing-down driving assembly is provided with a film pressing ring used for abutting against the voice coil and a wire blocking and bending rod arranged on the side of the film pressing ring. According to the utility model, the film pressing ring is arranged on the screw-down driving assembly, when a wire is bent, the lifting stop unit is started to ascend to fix the voice coil jig, the screw-down driving assembly drives the film pressing ring to abut against a voice coil, the wire blocking and bending rod is in contact with a voice coil lead, and the rotary driving assembly drives the bracket to rotate, so that the wire blocking and bending rod bends the lead; the voice coil is pressed against the voice coil jig through the film pressing ring, so that positioning of the voice coil is realized, the voice coil is prevented from falling off or displacing from the voice coil jig when the voice coil rotates to be bent, and the voice coil can be effectively bent.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeaker voice coil production equipment, in particular to a voice coil wire bending and positioning mechanism. Background Technique

[0002] After the voice coil and the vibration diaphragm are assembled into the voice coil diaphragm, it is necessary to bend and fix the end wire of the voice coil diaphragm. The traditional bending and dispensing fixation operations of the end wire of the voice coil diaphragm are completed by manual processing on the assembly line. With the development of the economy, automation has gradually replaced manual operations. For this reason, some voice coil wire bending and shaping mechanisms applied to loudspeaker voice coil production equipment have emerged on the market to complete the bending of the end wire of the voice coil.

[0003] For example, a voice coil lead wire scribing mechanism disclosed by the Chinese Patent Office, with the patent number 2023211888834, the utility model relates to the technical field of voice coil and diaphragm assembly equipment, in particular to a voice coil lead wire scribing mechanism, including: a turntable, the turntable is provided with a rotatable fixture; a wire clamping assembly, having a clamping unit that can be lifted and adjusted in angle and is used for clamping the lead wire; a blocking assembly, having a stop pin for cooperating with the lead wire of the clamping unit; a pair of inserting power assemblies, having a plug that can be lifted and is used for driving the fixture to rotate and a first driving unit. The utility model clamps the lead wire by the clamping unit on the wire clamping assembly and cooperates with the stop pin on the blocking assembly. The plug is lifted by the pair of inserting power assemblies, so that the first driving unit drives the plug to drive the fixture to rotate, and then the clamping unit and the stop pin cooperate to scribe the lead wire, thereby completing the integration of cutting and scribing, improving its automation level, and effectively reducing the labor cost; at the same time, the angle of the wire clamping by the clamping unit can be adjusted and then cooperate with the stop pin to meet the scribing process requirements of different voice coil combinations.

[0004] However, when the above-mentioned voice coil lead wire scribing mechanism bends the wire, by driving the fixture to rotate and cooperating with the stop pin to bend the wire, this wire bending method is prone to loosening of the voice coil during wire bending because there is no positioning of the voice coil on the fixture, resulting in wire bending failure and defective products. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a voice coil wire bending and positioning mechanism, including: a base and voice coil fixtures arranged above the base and equidistantly on the outer peripheral edge of the turntable, the base is provided with a lifting and stopping unit that can be lifted and is used for positioning the voice coil fixture, and the base is also provided with a wire bending unit for bending the voice coil lead wire in the voice coil fixture;

[0006] Among them, the curved wire unit includes a rotation driving component and a bracket disposed at the output end of the rotation driving component and driven to rotate by the rotation driving component. The bracket rotates along the outer periphery of the turntable. A pressing driving component is provided on the bracket. The pressing driving component is provided with a pressing film ring for pressing against the voice coil and a wire blocking and bending rod disposed on the side of the pressing film ring. After the lifting and stopping unit lifts and positions the voice coil jig, the pressing film ring is driven by the pressing driving component to press against the voice coil, and the wire blocking and bending rod contacts the voice coil lead. The rotation driving component drives the bracket to rotate, so that the wire blocking and bending rod bends the lead.

[0007] Furthermore, the curved wire unit further includes a rotation angle positioning and sensing component disposed on the side of the base and used for sensing the rotation angle of the bracket. The rotation angle positioning and sensing component includes a sensor electrically connected to the rotation driving component.

[0008] Furthermore, the lifting and stopping unit includes a first lifting device and a movable frame connected to the output end of the first lifting device. One end of the movable frame is close to the output end of the rotation driving component, and the output end of the rotation driving component passes through the movable frame. An insertion block that does not rotate following the output end of the rotation driving component is provided on the movable frame on one side of the output end of the rotation driving component. When the insertion block rises, it inserts into the bottom of the voice coil jig.

[0009] Furthermore, the pressing driving component includes a second lifting device disposed on one side of the bracket and a mounting frame slidably disposed on the other side of the bracket and connected to the output end of the second lifting device. One end of the mounting frame is provided with a fixing plate respectively connected to the pressing film ring and the wire blocking and bending rod.

[0010] Furthermore, a pressing film rod is provided at the upper end of the pressing film ring. The pressing film rod is fixed to the fixing plate. The pressing film ring is provided with a hollow part that allows the wire blocking and bending rod to move, and a pressing part that coincides with the voice coil is formed in the middle of the pressing film ring.

[0011] Furthermore, the rotation driving component includes a rotation driving device and a rotating shaft component rotatably disposed on the base. A driving synchronous pulley and a driven synchronous pulley are respectively provided at the output end of the rotation driving device and on the rotating shaft component. A synchronous belt is connected between the driving synchronous pulley and the driven synchronous pulley. The bracket is disposed on the rotating shaft component.

[0012] Furthermore, one end of the fixing plate is provided with a strip-shaped groove, and the other end of the fixing plate is provided with an adjustable clamping groove. The pressing film rod and the wire blocking and bending rod are respectively disposed on the corresponding clamping grooves. A mounting position corresponding to the strip-shaped groove is provided on the mounting frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a film pressing ring on the pressing drive assembly, when bending the wire, the lifting stop unit starts to rise to fix the voice coil jig on the turntable. The pressing drive assembly drives the film pressing ring to press against the voice coil, and the wire blocking and bending rod contacts the voice coil lead. The rotation drive assembly drives the bracket to rotate, so that the wire blocking and bending rod bends the lead. The voice coil is pressed against the voice coil jig through the film pressing ring to achieve the positioning of the voice coil, avoiding the voice coil falling off or shifting from the voice coil jig when rotating and bending the wire, so that the voice coil can be effectively bent. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of one perspective of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of another perspective of the present utility model. Detailed Embodiment

[0016] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0017] Please refer to Figure 1 and Figure 2 , this embodiment provides a voice coil wire bending positioning mechanism, which is arranged on the lower side of a turntable (not shown in the figure) of a speaker voice coil production device. The voice coil wire bending positioning mechanism includes a base 1 and voice coil jigs arranged above the base 1 and equidistantly on the outer peripheral edge of the turntable (not shown in the figure). The base 1 is provided with a lifting stop unit 2 that can be lifted and is used to position the voice coil jig. The base 1 is also provided with a wire bending unit 3 for bending the voice coil lead in the voice coil jig. When the voice coil to be bent is moved to the upper side of the lifting stop unit 2 through the turntable (not shown in the figure), the lifting stop unit 2 starts to rise to fix the voice coil jig. After the voice coil jig is fixed, the wire bending unit 3 starts to position the voice coil on the voice coil jig and then rotates to bend the voice coil lead;

[0018] Among them, the lifting stop unit 2 includes a first lifting device 20 and a movable frame 21 connected to the output end of the first lifting device 20. The movable frame 21 is slidably arranged on the base 1 through a slide rail and a slider. The movable frame 21 is provided with an insertion block 22. When the first lifting device 20 starts, it drives the movable frame 21 to rise, so that the insertion block 22 is inserted into the bottom of the voice coil jig when rising to position the voice coil jig.

[0019] In addition, the curved wire unit 3 includes a rotary drive assembly 30 and a bracket 31 provided at the output end of the rotary drive assembly 30 and driven to rotate by the rotary drive assembly 30. The bracket 31 rotates along the outer periphery of a turntable (not shown in the figure). A pressing drive assembly 32 is provided on the bracket 31. The pressing drive assembly 32 is provided with a pressing film ring 33 for pressing against the voice coil and a wire blocking and bending rod 34 provided on the side of the pressing film ring 33. After the lifting and stopping unit 2 lifts and positions the voice coil jig, the pressing film ring 33 is driven by the pressing drive assembly 32 to press against the voice coil, and the wire blocking and bending rod 34 contacts the voice coil lead. The rotary drive assembly 30 drives the bracket 31 to rotate, so that the wire blocking and bending rod 34 bends the lead wire.

[0020] In order to ensure the uniformity of the bending arc of the wire, a rotation angle positioning and sensing assembly for sensing the rotation angle of the bracket 31 is provided on the base 1 along the rotation direction of the bracket 31. The rotation angle positioning and sensing assembly includes a sensor 10 electrically connected to the rotary drive assembly 30. By setting the sensor 10, when the bracket 31 drives the wire blocking and bending rod 34 to rotate and bend the wire, after the sensor 10 senses the bracket 31, it feeds back a signal to the rotary drive assembly 30 to stop the operation of the rotary drive assembly 30, thereby ensuring the consistency of the bending arc each time.

[0021] Specifically, in this embodiment, the pressing drive assembly 32 includes a second lifting device 320 provided on one side of the bracket 31 and a mounting frame 321 slidably provided on the other side of the bracket 31 and connected to the output end of the second lifting device 320. The pressing film ring 33 and the wire blocking and bending rod 34 are respectively fixed to the mounting frame 321 through fixing plates 322. The second lifting device 320 drives the mounting frame 321 to move downward, so that the pressing film ring 33 presses the voice coil against the voice coil jig to prevent the voice coil from loosening. The wire blocking and bending rod 34 contacts the voice coil lead. When the bracket 31 rotates, the wire blocking and bending rod 34 pushes the lead wire to be bent;

[0022] Wherein, one end of the fixing plate 322 is provided with a strip-shaped groove, and the other end of the fixing plate 322 is provided with a clamping groove with adjustable tightness. The wire blocking and bending rod 34 is provided on the corresponding clamping groove, and the pressing film ring 33 is provided on the corresponding clamping groove through a pressing film rod 330. The mounting frame 321 is provided with a mounting position corresponding to the strip-shaped groove, and the mounting position is provided with several threaded holes. By loosening the clamping groove, the height of the pressing film ring 33 or the wire blocking and bending rod 34 can be adjusted, or by adjusting the position of the fixing plate 322, the pressing film ring 33 or the wire blocking and bending rod 34 can effectively position and bend the voice coil.

[0023] It should be noted that in this embodiment, the first lifting device 20 and the second lifting device 320 adopt air cylinders; or in other embodiments, the first lifting device 20 and the second lifting device 320 can adopt electric cylinders; or in other embodiments, the first lifting device 20 and the second lifting device 320 can adopt the motor and lead screw drive mode of the prior art; or in other embodiments, the first lifting device 20 and the second lifting device 320 can adopt the motor, pulley and belt drive mode of the prior art, or the first lifting device 20 and the second lifting device 320 adopt other drive modes to achieve lifting, which will not be elaborated one by one in this embodiment.

[0024] In this embodiment, the rotation drive assembly 30 includes a rotation drive device 300 and a rotating shaft assembly 301 rotatably disposed on the base 1. A driving synchronous pulley 302 and a driven synchronous pulley 303 are respectively provided at the output end of the rotation drive device 300 and on the rotating shaft assembly 301. A synchronous belt is connected between the driving synchronous pulley 302 and the driven synchronous pulley 303. The bracket 31 is disposed on the rotating shaft assembly 301, and the bracket 31 is driven to rotate by the rotating shaft assembly 301. The upper end of the rotating shaft assembly 301 passes through the movable frame 21 and extends into the mating plug 22, and the mating plug 22 does not rotate with the rotating shaft assembly 301; it should be noted that in this embodiment, the rotation drive device 300 adopts a motor.

[0025] Preferably, in order to enable the film pressing ring 33 to better press against the voice coil, and to prevent the voice coil from deforming when pressing, and to cooperate with the wire bending of the wire blocking and wire bending rod 34, therefore, in this embodiment, the film pressing ring 33 is provided with a mounting hole, the film pressing rod 330 is disposed on the mounting hole, the film pressing ring 33 is provided with a hollow portion 331 allowing the wire blocking and wire bending rod 34 to move, and a pressing portion 332 matching the voice coil is formed in the middle of the film pressing ring 33. Through this setting, when the film pressing ring 33 presses down the voice coil, the deformation and loosening of the voice coil are avoided.

[0026] In summary, the present utility model fixes the voice coil jig on the turntable (not shown in the figure) by starting the lifting of the lifting stop unit 2 when bending the wire by providing the film pressing ring 33 on the pressing drive assembly 32. The pressing drive assembly 32 drives the film pressing ring 33 to press against the voice coil, and the wire blocking and wire bending rod 34 contacts the voice coil lead. The rotation drive assembly 30 drives the bracket 31 to rotate, so that the wire blocking and wire bending rod 34 bends the lead, and the voice coil is pressed against the voice coil jig by the film pressing ring 33 to realize the positioning of the voice coil, avoiding the voice coil from falling off or displacing from the voice coil jig when rotating and bending the wire, so that the voice coil can be effectively bent.

[0027] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

Claims

1. A voice coil bending line positioning mechanism, comprising: A base and a voice coil fixture disposed above the base and arranged at equal intervals on the outer circumferential edge of the turntable, characterized in that the base is provided with a lifting stop unit that can be lifted and lowered and is used to position the voice coil fixture, and the base is also provided with a bending unit for bending the voice coil lead wire in the voice coil fixture; Among them, the wire bending unit includes a rotating drive component and a bracket arranged at the output end of the rotating drive component and driven to rotate by the rotating drive component. The bracket rotates along the outer peripheral edge of the turntable. A pressing drive component is provided on the bracket. The pressing drive component is provided with a film pressing ring for pressing the voice coil and a wire-stopping bending rod arranged on the side of the film pressing ring. After the lifting and stopping unit lifts the voice coil fixture to position, the film pressing ring is driven by the pressing drive component to press the voice coil, and the wire-stopping bending rod contacts the voice coil lead. The rotating drive component drives the bracket to rotate, so that the wire-stopping bending rod bends the lead.

2. The voice coil bending line positioning mechanism according to claim 1, characterized in that: The wire bending unit also includes a rotation angle positioning sensing component arranged at the side of the base and used to sense the rotation angle positioning sensing component of the bracket. The rotation angle positioning sensing component includes a sensor electrically connected to the rotation driving component.

3. The voice coil bending line positioning mechanism according to claim 1, characterized in that: The lifting stop unit includes a first lifting device and a movable frame connected to the output end of the first lifting device, one end of the movable frame is close to the output end of the rotation drive component, and the output end of the rotation drive component passes through the movable frame, and a counter-block that does not rotate with the output end of the rotation drive component is provided on the movable frame on one side of the output end of the rotation drive component, and the counter-block is inserted into the bottom of the voice coil fixture when it rises.

4. The voice coil bending line positioning mechanism according to claim 1, characterized in that: The pressing drive assembly includes a second lifting device arranged on one side of the bracket and a mounting frame slidably arranged on the other side of the bracket and connected to the output end of the second lifting device. One end of the mounting frame is provided with a fixing plate respectively connected to the film pressing ring and the wire bending rod.

5. The voice coil bending line positioning mechanism according to claim 4, characterized in that: A film pressing rod is provided at the upper end of the film pressing ring, which is fixed on a fixed plate. The film pressing ring is provided with a hollow portion that allows the wire bending rod to move, and a pressing portion that matches the voice coil is formed in the middle of the film pressing ring.

6. The voice coil bending line positioning mechanism according to claim 3, characterized in that: The rotary drive assembly includes a rotary drive device and a rotating shaft assembly rotatably arranged on a base. An active synchronous wheel and a driven synchronous wheel are respectively arranged on the output end of the rotary drive device and the rotating shaft assembly. The active synchronous wheel and the driven synchronous wheel are connected with a synchronous belt. The bracket is arranged on the rotating shaft assembly.

7. The voice coil bending line positioning mechanism according to claim 5, characterized in that: A strip groove is arranged at one end of the fixing plate, and a clamping groove with adjustable tightness is arranged at the other end of the fixing plate. The film pressing rod and the wire-blocking and bending rod are respectively arranged on the corresponding clamping grooves, and a mounting position corresponding to the strip groove is arranged on the mounting frame.

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