An inductor coil tinning equipment

Abstract

The present invention relates to an inductor coil tinning equipment, which includes a base, a tin bath, a linear motion drive unit, a product jig, a jig bracket and a rotary motion drive unit. Among them, a plurality of inductor coils are sequentially inserted and fixed on the product jig. The tin bath is placed on the base. The jig bracket is displaced in the up and down directions under the drive of the linear motion drive unit. The product jig is arranged directly above the tin bath and clamped by the jig bracket. The rotary motion drive unit is fixed on the jig bracket to drive the product jig to perform intermittent circumferential rotation around its center line. In this way, on the one hand, the tinning efficiency of the inductor coil is effectively improved and the labor intensity of the workers is reduced; on the other hand, the tinning time of each terminal of the inductor coil is effectively guaranteed, thereby ensuring its final tinning quality.

Description

Technical Field

[0001] The invention relates to the field of tinning technology, in particular to tinning equipment for an inductor coil. Background Art

[0002] Tinning process is to coat the metal surface with a layer of tin to prevent oxidation and facilitate welding. In the molding process of the inductor coil, the surface needs to be tinned so that the tin metal or alloy is deposited on its working surface to form a uniform, dense and well-bonded metal layer, which plays a role in protecting against oxidation and makes the lead pins welded to it have good solderability, preparing for the next process. The quality of tinning directly affects the performance and service life of the inductor coil.

[0003] As is known, the inductor includes two terminals (such as Figure 1 ), all need to be tinned. In the prior art, the tinning operation of the inductor coil is mostly completed by manual operation, which is as follows: first, the operator clamps the inductor coil and immerses one end of it into the tin liquid. After the tinning is completed, the operator turns the wrist and immerses the other end into the tin liquid to finally complete the tinning operation. However, the above operation method has low production efficiency and wastes a lot of labor costs; and the time of each tinning is completely controlled by the operator personally, which is very arbitrary and subjective, which is not conducive to the quality control of tinning, thereby affecting the subsequent welding firmness of the inductor coil and the wiring, and reducing the yield rate of the product. Therefore, it is urgent for technical personnel to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an inductor coil tinning equipment which has a simple structural design, a high degree of automation, effectively improves production efficiency, reduces the labor intensity of workers, and ensures the molding quality of the tin layer.

[0005] In order to solve the above technical problems, the present invention relates to an inductor coil tinning equipment, which includes a base, a tin bath, a linear motion drive unit, a product jig, a jig bracket and a rotary motion drive unit. Among them, a plurality of inductor coils are sequentially inserted and fixed on the product jig. The tin bath is placed on the base. The jig bracket is displaced in the up and down directions under the drive of the linear motion drive unit. The product jig is arranged directly above the tin bath and is clamped by the jig bracket. The rotary motion drive unit is fixed on the jig bracket to drive the product jig to perform intermittent circumferential rotation around its center line.

[0006] As a further improvement of the technical solution of the present invention, the above-mentioned rotational motion driving unit includes a servo stepper motor, a first synchronous wheel assembly, a second synchronous wheel assembly, a force transmission shaft, a first rotating shaft and a second rotating shaft. The force transmission shaft crosses the fixture bracket and performs intermittent circumferential rotational motion around its central axis under the driving force of the above-mentioned servo stepper motor. The first synchronous wheel assembly and the second synchronous wheel assembly are symmetrically arranged on the left and right sides of the fixture bracket to respectively realize power transmission between the force transmission shaft and the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are both inserted into the fixture bracket, resting against the left and right ends of the product fixture, and perform synchronous circumferential rotational motion around their respective central axes under the drive of the first synchronous wheel assembly and the second synchronous wheel assembly, respectively.

[0007] As a further improvement of the technical solution of the present invention, the above-mentioned inductor coil tinning equipment also includes a slide rail slider assembly. The slide rail slider assembly includes a slide rail and a slider. The slide rail is placed horizontally and moves in the up and down direction under the action of the linear motion drive unit. The slider is connected between the fixture bracket and the slide rail so that the fixture bracket can slide in the left and right direction.

[0008] As a further improvement of the technical solution of the present invention, the above-mentioned inductor coil tinning equipment also includes a locking screw. Correspondingly, a threaded hole matched with the above-mentioned locking screw is opened on the fixture bracket corresponding to the slide rail.

[0009] As a further improvement of the technical solution of the present invention, the above-mentioned linear motion driving unit includes a linear module and a driving motor for driving the linear module.

[0010] By adopting the above technical solution, in the actual tinning process, the operator first puts the inductor coils on the product jig piece by piece, and then fixes the whole to the jig bracket. Then, the linear motion drive unit drives the jig bracket to move downward, and the inductor coil enters the tin liquid under the drive of the product jig, and stops for a period of time to complete the tinning operation of one terminal; then, the linear motion drive unit drives the jig bracket to move upward for a distance, and at the same time, the rotary motion drive unit moves to drive the product jig to flip 180°, and then, the linear motion drive unit drives the jig bracket to move downward for a distance again, until the other terminal of the inductor coil is immersed in the tin liquid, and also stops for a period of time to finally complete the tinning operation. In this way, on the one hand, the tinning efficiency of the inductor coil is effectively improved and the labor intensity of the workers is reduced; on the other hand, the tinning time of the terminal of the inductor coil is effectively controlled, the tinning quality of the inductor coil is guaranteed, and then the subsequent welding firmness of the inductor coil and the wiring is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural diagram of an inductor coil.

[0013] Figure 2 It is a schematic diagram of the installation of the inductor coil on the product fixture in the present invention.

[0014] Figure 3 It is a structural schematic diagram of a first embodiment of the inductor coil tinning equipment of the present invention.

[0015] Figure 4 yes Figure 3 Side view of.

[0016] Figure 5 It is a structural schematic diagram of a second embodiment of the inductor coil tinning equipment of the present invention.

[0017] 1-base; 2-tin bath; 3-linear motion drive unit; 31-linear module; 32-drive motor; 4-product fixture; 5-fixture bracket; 6-rotational motion drive unit; 61-servo stepper motor; 62-first synchronous wheel assembly; 63-second synchronous wheel assembly; 64-force transmission shaft; 65-first rotation axis; 66-second rotation axis; 7-slide rail and slider assembly; 71-slide rail; 72-slide slider; 8-locking screw. DETAILED DESCRIPTION

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] The present invention will be further described in detail below with reference to specific embodiments. Figure 3 , Figure 4The structural schematic diagram and the side view of the first embodiment of the inductor coil tinning equipment of the present invention are respectively shown. It can be seen that it is mainly composed of a base 1, a tin bath 2, a linear motion driving unit 3, a product jig 4, a jig bracket 5 and a rotary motion driving unit 6. Among them, multiple inductor coils are sequentially arranged and fixed on the product jig 4. The tin bath 2 is placed on the base 1. The jig bracket 5 is displaced in the up and down directions under the drive of the linear motion driving unit 3. The product jig 4 is arranged directly above the tin bath 2 and is clamped by the jig bracket 5. The rotary motion driving unit 6 is fixed on the jig bracket 5 to drive the product jig 4 to perform intermittent circumferential rotation around its center line. In this way, on the one hand, the tinning efficiency of the inductor coil is effectively improved and the labor intensity of the workers is reduced; on the other hand, the tinning time of the inductor coil terminal is effectively controlled, the tinning quality of the inductor coil is guaranteed, and then the subsequent welding firmness between it and the wiring is ensured.

[0020] In order to ensure the accuracy of the displacement of the fixture bracket 5 in the up and down direction, the linear motion driving unit 3 is preferably composed of a linear module 31 and a driving motor 32 for driving the linear module 31 (such as Figure 4 ).

[0021] The working principle of the above-mentioned inductor coil tinning equipment is as follows: before the formal tinning operation, the operator first inserts the inductor coils one by one on the product fixture 4 (such as Figure 2 As shown in the figure), the whole is then fixed to the jig bracket 5. Subsequently, the linear motion driving unit 3 drives the jig bracket 5 to move downward, and the inductor coil is driven by the product jig 4 to enter the tin liquid and stay for a period of time to complete the tinning operation of one terminal thereof. Then, the linear motion driving unit 3 drives the jig bracket 5 to move upward for a certain distance. At the same time, the rotary motion driving unit 6 is activated to drive the product jig 4 to flip 180°. Subsequently, the linear motion driving unit 3 drives the jig bracket 5 to move downward for a certain distance again until the other terminal of the inductor coil is immersed in the tin liquid and stays for a period of time to finally complete the tinning operation.

[0022] It should be noted that after the pre-tinned inductor coils are fixed to the product fixture 4, the abutment force between the inductor coils needs to be controlled to prevent them from rotating around their own center lines during the tinning process and affecting the molding quality of the tin layer. Generally speaking, the abutment force needs to be controlled at 3-5N.

[0023] As a further refinement of the structure of the above-mentioned inductor coil tinning equipment, the above-mentioned rotational motion driving unit 6 includes a servo stepper motor 61, a first synchronous wheel assembly 62, a second synchronous wheel assembly 63, a force transmission shaft 64, a first rotating shaft 65 and a second rotating shaft 66. The force transmission shaft 64 crosses the jig bracket 5, and performs intermittent circumferential rotational motion around its central axis under the driving force of the above-mentioned servo stepper motor 61. The first synchronous wheel assembly 62 and the second synchronous wheel assembly 63 are symmetrically arranged on the left and right sides of the jig bracket 5 to respectively realize the power transmission between the above-mentioned force transmission shaft 64 and the first rotating shaft 65 and the second rotating shaft 66. The first rotating shaft 65 and the second rotating shaft 66 are both inserted into the jig bracket 5, resting against the left and right ends of the product jig 4, and perform synchronous circumferential rotational motion around their respective central axes under the drive of the first synchronous wheel assembly 62 and the second synchronous wheel assembly 63 (such as Figure 4 By adopting the above technical solution, on the one hand, the structural design of the rotary motion driving part 6 is optimized, which effectively reduces the manufacturing cost and facilitates the subsequent maintenance operation, thereby reducing the use cost; on the other hand, the left and right ends of the product fixture 4 are subjected to force synchronously, thereby ensuring the balance of the force and further ensuring its service life.

[0024] Figure 5 The schematic diagram of the structure of the second embodiment of the inductor coil tinning equipment of the present invention is shown. The difference between the second embodiment and the first embodiment is that a slide rail slider assembly 7 is additionally provided to facilitate real-time adjustment of the position relationship of the product jig 4 relative to the tin bath 2 according to actual conditions, thereby ensuring the operability of the inductor coil tinning equipment. The specific recommended scheme is as follows: The slide rail slider assembly 7 includes a slide rail 71 and a slider 72. Among them, the slide rail 71 is placed horizontally, and is displaced in the up and down directions under the action of the linear motion drive unit 3. The slider 72 is connected between the jig bracket 5 and the slide rail 71, so that the jig bracket 5 can slide in the left and right directions (such as Figure 5 ).

[0025] Furthermore, the above-mentioned inductor coil tinning equipment can also be additionally provided with a locking screw 8 according to actual conditions. Correspondingly, a threaded hole (such as Figure 5 As shown in ). In this way, when the relative position of the jig bracket 5 is adjusted to the right position, the position is locked in time by the locking screw 8 to prevent it from sliding during the subsequent tinning process.

[0026] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inductor coil tinning equipment, characterized in that: It comprises a base, a tin bath, a linear motion driving unit, a product jig, a jig support and a rotary motion driving unit; wherein a plurality of inductance coils are sequentially arranged and fixed on the product jig; the tin bath is placed on the base; the jig support is displaced in the up and down directions under the drive of the linear motion driving unit; the product jig is arranged directly above the tin bath and is clamped by the jig support; the rotary motion driving unit is fixed on the jig support to drive the product jig to perform intermittent circumferential rotational motion around its center line; The rotary motion driving unit includes a servo stepper motor, a first synchronous wheel assembly, a second synchronous wheel assembly, a force transmission shaft, a first rotating shaft and a second rotating shaft; the force transmission shaft crosses the fixture bracket and performs intermittent circumferential rotational motion around its central axis under the driving force of the servo stepper motor; the first synchronous wheel assembly and the second synchronous wheel assembly are symmetrically arranged on the left and right sides of the fixture bracket to respectively realize power transmission between the force transmission shaft and the first rotating shaft and the second rotating shaft; the first rotating shaft and the second rotating shaft are both inserted into the fixture bracket, resting against the left and right ends of the product fixture, and perform synchronous circumferential rotational motion around their respective central axes under the drive of the first synchronous wheel assembly and the second synchronous wheel assembly respectively; The inductor coil tinning equipment also includes a slide rail and a slider assembly; the slide rail and the slider assembly include a slide rail and a slider; the slide rail is horizontally placed and moves in the up and down direction under the action of the linear motion driving unit; the slider is connected between the jig bracket and the slide rail so that the jig bracket can slide in the left and right direction; The inductor coil tinning equipment also includes a locking screw. Correspondingly, a threaded hole matched with the locking screw is opened on the fixture bracket just corresponding to the slide rail.

2. The inductor coil tinning equipment according to claim 1, characterized in that: The linear motion driving unit includes a linear module and a driving motor for driving the linear module.

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