A fixed mold for a voice coil motor coil bracket

Abstract

The present invention relates to the technical field of voice coil motor processing equipment, and in particular to a fixed mold for a voice coil motor coil bracket, comprising a mold shell and a push tube, the mold shell being a hollow structure, one end of which is provided with a claw for fixing the coil bracket; the push tube is inserted in the mold shell, one end of the push tube is provided with a first stop portion, a compression spring is provided between the first stop portion and the end of the mold shell, an end adjacent to the coil bracket is provided with a second stop portion, and when the push tube is pushed and moved toward the side where the coil bracket is located, the compression spring is compressed, and the coil bracket is pushed through the second stop portion to achieve material discharge; a latch is provided in the mold shell, the latch is engaged with a bayonet socket provided at the suspended end of the rotating shaft, and when the rotating shaft rotates, the mold shell and the coil bracket fixed at its end are driven to rotate; the fixed mold provided by the present invention can adapt to coil brackets of various specifications, models and sizes, and it is only necessary to match the mold shell to coil brackets of different specifications, models and sizes.

Description

Technical Field

[0001] The invention relates to the technical field of voice coil motor processing equipment, and in particular to a fixed mold of a voice coil motor coil bracket. Background Art

[0002] A voice coil motor is a device that converts electrical energy into mechanical energy and realizes linear and limited swing angle motion. Its working principle is to use the interaction between the magnetic field from the permanent magnet and the magnetic poles in the magnetic field generated by the energized coil conductor to produce regular motion. The structure of a voice coil motor is relatively simple, including a coil, a spring and a magnet. Among them, the coil is the core component. For traditional coil winding, one is manual operation, which is inefficient, has poor precision, and poor stability in batch production; the other is mechanized production using mold clamping, but due to the small size of the motor, the structural design of the mold is correspondingly miniaturized, making it difficult to achieve precise positioning during assembly, affecting production efficiency; moreover, if a winding machine is to adapt to multiple models or sizes of coil brackets at the same time, it must be connected to the winding machine's rotating shaft and the positioning part of the fixed coil bracket through a connector. The traditional practice is to lock the connecting piece and the rotating shaft of the winding machine together, the coil holder is fixed on the positioning piece, the positioning piece is connected and fixed with the interchangeable piece corresponding to the model or size of the coil holder, and the interchangeable piece is then connected to the connecting piece through a sleeve. When a different coil holder needs to be replaced for winding, the connecting piece, positioning piece, interchangeable piece and sleeve must all be removed and replaced with the interchangeable piece corresponding to the size or model of the coil holder, and then assembled again and fixed on the rotating shaft of the winding machine. Therefore, when replacing the coil holder for winding, the steps are very cumbersome, affecting work efficiency, and the replacement process is prone to errors. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a fixed mold for a voice coil motor coil bracket to achieve convenience in the loading and unloading processes of the coil bracket, while also being able to conveniently replace the size and model of the coil bracket to improve the winding efficiency of the voice coil motor.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A fixed mold for a voice coil motor coil support, comprising:

[0006] The mold shell is a hollow structure and has a claw at one end for fixing the coil support to be wound;

[0007] A push tube is inserted into the mold shell, a first stop is provided at one end of the push tube away from the coil support, a compression spring is provided between the first stop and the end of the mold shell, a second stop is provided at one end of the push tube near the coil support, and when the push tube is pushed and moved toward the side where the coil support is located, the compression spring is compressed, and the coil support is pushed through the second stop to achieve material discharge;

[0008] Wherein, a latch is arranged in the mold shell, and the latch is engaged with a bayonet arranged at the hanging end of the rotating shaft, and drives the mold shell and the coil bracket fixed at the end thereof to rotate when the rotating shaft rotates.

[0009] Preferably, a strip-shaped through hole is provided on the tube body of the push tube and is in an avoidance position with a pin fixed on the mold shell.

[0010] Preferably, a magnet is fixed inside the pushing tube and attracts the rotating shaft.

[0011] Preferably, the magnet is cylindrical, inserted into the push tube, and fixed by bolts arranged on the push tube.

[0012] Compared with the prior art, the present invention has the following technical effects:

[0013] The fixed mold of the coil support provided by the present invention utilizes a mold shell to fix the coil support to be wound, and the mold shell is set as a hollow structure, and a latch is arranged inside the mold shell, so that a rotating shaft providing a rotating power is inserted into the mold shell, and a bayonet provided at the end thereof is engaged with the latch. When the rotating shaft rotates, the mold shell and the coil support engaged at the end of the mold shell are driven to rotate via the latch, thereby realizing the winding operation on the coil support;

[0014] Based on the technical solution provided by the present invention, since the rotating shaft that provides power is inserted in conjunction with the latch to provide power, it can adapt to coil brackets of various specifications, models and sizes, and it is only necessary to match the mold shell with the coil brackets of different specifications, models and sizes; and, the hollow structure design of the mold shell has a push tube arranged in its shell cavity. When the winding operation on the coil bracket is completed, the push tube is used to push the coil bracket out of the mold shell, which is simple and convenient.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a fixed mold of a voice coil motor coil support provided according to a specific embodiment of the present invention;

[0017] Figure 2 Shown as Figure 1Exploded schematic diagram of the fixed mold;

[0018] Figure 3 A schematic top view of an automated winding tool provided by the present invention is shown;

[0019] Figure 4 Shown as Figure 3 A magnified schematic diagram of position A in the middle;

[0020] Figure 5 It is a schematic diagram showing the cooperation between the automatic winding tooling and the rotating shaft in the present invention;

[0021] Figure 6 It is a schematic diagram of the main structure of the automated winding tooling in the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the automated winding tooling in the present invention;

[0023] Explanation of numbers in the figure: 1-coil bracket, 2-winding machine, 10-mold shell, 11-claw, 12-latch, 13-clamping part, 20-pushing tube, 21-first stopper, 22-second stopper, 23-strip through hole, 24-magnet, 30-compression spring, 40-rotating shaft, 41-bayonet, 50-upper clamping plate, 60-upper and lower driving source, 70-left and right driving source, 80-front plate, 81-recessed part, 82-guide column, 90-rear plate, 91-thrust rod, 911-spring, 92-through hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific drawings.

[0025] It should be noted that, in the present invention, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figure 1 , 2 As shown, the present invention provides a fixed mold for a voice coil motor coil support, including a mold shell 10 and a push tube 20; the mold shell 10 is a hollow structure, and a claw 11 is provided at one end thereof for fixing the coil support 1 to be wound; the push tube 20 is inserted in the mold shell 10, and a first stop portion 21 is provided at the end of the push tube 20 away from the coil support 1, and a compression spring 30 is provided between the first stop portion 21 and the end of the mold shell 10, and a second stop portion 22 is provided at the end of the push tube 20 adjacent to the coil support 1, and when the push tube 20 is pushed and moved toward the side where the coil support 1 is located, the compression spring 30 is compressed, and the coil support 1 is pushed through the second stop portion 22 to achieve material discharge; wherein, a latch 12 is provided in the mold shell 10, and the latch 12 is engaged with a bayonet 41 arranged at the suspended end of the rotating shaft 40, and when the rotating shaft 40 rotates, the mold shell 10 and the coil support 1 fixed at its end are driven to rotate.

[0028] In the technical solution provided by the present invention, the mold shell 10 is used to fix the coil support 1 to be wound, and the mold shell 10 is set to a hollow structure, and a latch 12 is set inside it, so that the rotating shaft 40 providing rotational power is inserted into the mold shell 10, and the bayonet 41 set at its end is engaged with the latch 12. When the rotating shaft 40 rotates, the mold shell 10 and the coil support 1 engaged with the end of the mold shell 10 are driven to rotate via the latch 12, thereby realizing the winding operation on the coil support 1; the above technical solution, because the rotating shaft 40 providing power adopts an insertion method to cooperate with the latch 12 to provide power, it can adapt to coil supports 1 of various specifications, models and sizes, and it only needs to match the mold shell 10 with coil supports 1 of different specifications, models and sizes; and the hollow structure design of the mold shell 10 is provided with a push tube 20 in its shell cavity. When the winding operation on the coil support 1 is completed, the push tube 20 is used to push the coil support 1 out of the mold shell 10, which is simple and convenient.

[0029] Further, according to the present invention, in order to ensure that the push tube 20 can be stably pushed to the coil support 1, a strip through hole 23 extending vertically through the tube body of the push tube 20 is in an avoidance position with the pin 12 fixed on the mold shell 10.

[0030] In the present invention, the rotating shaft 40 is inserted into the mold shell 10 and provides rotational power. In order to ensure the stability of the mold shell 10 and the push tube 20 during the rotation process, a magnet 24 is fixed in the push tube 20 to attract the rotating shaft 40. Further, in the present invention, the magnet 24 is cylindrical, inserted into the push tube 20, and locked and fixed by a bolt set on the push tube 20.

[0031] See also Figure 3-7As shown, the present invention also provides an automated winding tooling based on the above-mentioned voice coil motor coil bracket fixed mold, the automated winding tooling includes an upper clamping plate 50, an upper and lower driving source 60, a left and right driving source 70, a front plate 80 and the fixed mold;

[0032] The upper and lower driving sources 60 are arranged below the upper cardboard 50 to drive the upper cardboard 50 to move up and down, the left and right driving sources 70 are arranged beside the upper cardboard 50 to drive the upper cardboard 50 to move in the direction close to or away from the winding machine 2, the front plate 80 is arranged above the upper cardboard 50 and is arranged adjacent to the winding machine 2, the upper end surface of the front plate 80 is provided with a plurality of notches 81 arranged at intervals along the length direction of the plate, and the mold shell 10 is provided with a clamping portion 13 for clamping and fixing in the notches 81. After the upper and lower driving sources 60 drive the upper cardboard 50 to move upward so that the mold shell 10 is aligned with the rotating shaft 40 on the winding machine 2, the left and right driving sources 70 drive the upper cardboard 50 to move in the direction close to the winding machine 2 so that the rotating shaft 40 is inserted into the mold shell 10 and clamped with it, the rotation of the rotating shaft 40 drives the mold shell 10 to rotate, and drives the coil support 1 clamped on the mold shell 10 to perform winding.

[0033] The automatic winding tool provided by the present invention uniformly fixes the coil support 1 through the mold shell 10, and fixes the mold shell 10 loaded with the coil support 1 on the notch 81 of the front plate 80, first drives it to rise and align with the rotating shaft 40 of the winding machine 2 through the upper and lower driving sources 60, and then pushes the mold shell 10 loaded with the coil support 1 to be clamped on the rotating shaft 40 through the left and right driving sources 70, and then drives the upper clamping plate 50 to move downward through the upper and lower driving sources 60 to make it separate from the plane where the rotating shaft 40 is located, and turns on the winding machine 2 to rotate the rotating shaft 40, driving the mold shell 10 to rotate, and completing the winding operation of the coil support 1; then the upper and lower driving sources 60 drive the upper clamping plate 10 to rise again, and cooperate with the left and right driving sources 70 to remove the mold shell 10 and the coil support 1 fixed on the mold shell 10. The automatic winding tool provided by the present invention has high feeding accuracy and fast speed, ensuring the efficient and high-yield production of the voice coil motor coil support winding.

[0034] In the present invention, the functions of the up-down driving source 60 and the left-right driving source 70 are to provide a stable thrust. Specifically, the up-down driving source 60 and the left-right driving source 70 can be cylinders.

[0035] Furthermore, the automated winding tooling also includes a rear plate 90, which is arranged above the upper clamping plate 50 and spaced apart from and parallel to the front plate 80, and the rear plate 90 is provided with a plurality of top rods 91 perpendicular to its plate surface, the rod bodies of the top rods 91 extend to the side where the front plate 80 is located, and a spring 911 is sleeved on the top rods 91, and the cantilevered end of the spring 911 rests on the front plate 80; wherein, the power output shafts of the left and right driving sources 70 are fixedly connected to the rear plate 90, and when the rear plate 90 is pushed, the front plate 80 is pushed to move toward the side where the winding machine 2 is located via the spring 911 sleeved on the top rods 91.

[0036] Further, according to the present invention, in order to ensure the stability of the rear plate 90 during the reciprocating movement relative to the front plate 80, the front plate 80 is provided with a plurality of guide posts 82 perpendicular to its plate surface, and the guide posts 82 pass through corresponding through holes 92 provided on the rear plate 90.

[0037] The above shows and describes the basic principles, main features and characteristics of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A fixed mold for a voice coil motor coil support, characterized in that: include: A mold shell (10) having a hollow structure and provided with a clamping claw (11) at one end thereof for fixing a coil support (1) to be wound; A material pushing tube (20) is inserted into the mold shell (10), a first stopper (21) is provided at one end of the material pushing tube (20) away from the coil support (1), a compression spring (30) is provided between the first stopper (21) and the end of the mold shell (10), a second stopper (22) is provided at one end of the material pushing tube (20) adjacent to the coil support (1), and when the material pushing tube (20) is pushed and moved toward the side where the coil support (1) is located, the compression spring (30) is compressed, and the coil support (1) is pushed via the second stopper (22) to achieve material unloading; Wherein, a latch (12) is provided in the mold shell (10), and the latch (12) is engaged with a bayonet (41) provided at the hanging end of the rotating shaft (40), and when the rotating shaft (40) rotates, the mold shell (10) and the coil support (1) fixed at the end thereof are driven to rotate; The push tube (20) is provided with a strip-shaped through hole (23) which passes through the tube from top to bottom and is in an avoidance position with a latch (12) fixed on the mold shell (10); A magnet (24) is fixed inside the push tube (20) and attracts the rotating shaft (40); The magnet (24) is cylindrical and is inserted into the push tube (20) and is locked and fixed by bolts arranged on the push tube (20).

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