A welding shield for an automotive regulator and method

Abstract

The application discloses a welding protection device and method for an automobile regulator, which comprises a moving platform, a protection device and a top rod, the moving platform is provided with a slide rail below, the moving platform is fixedly connected with a cushion block above, the cushion block is fixedly connected with a fixing seat above, the fixing seat is fixedly connected with a product mounting and fixing jig above, the protection device comprises a connecting shaft, the first end of the connecting shaft is fixedly connected with a splayed limiting rod, the splayed limiting rod comprises a first splayed limiting rod and a second splayed limiting rod, the second end of the connecting shaft is hinged to the side surface of the cushion block, the second end of the connecting shaft is fixedly connected with a driving protection arm in the direction away from the moving platform, the end of the driving protection arm away from the connecting shaft is fixedly connected with a protection sheet, and one end of the top rod is fixed, and the other end is located between the splayed limiting rods. The application solves the problem of the welding head scalding or damaging the support in the welding process of the support + PCBA structure, improves the product appearance and improves the reliability of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding protection, in particular to a welding protection device and method for an automobile regulator. BACKGROUND

[0002] The regulator is an indispensable part of the automobile generator. The main function of the regulator is to compensate for the impact of the generator speed change by controlling the on-off of the excitation current in the excitation coil, so as to maintain the stability of the generator output voltage. The performance and service life of the regulator greatly affect the use and service life of the automobile generator.

[0003] The automobile regulator is mainly composed of a regulator support, a heat sink, a circuit part, a rear cover, a carbon brush, a spring, a welding point protection cover and other components. The circuit part realizes the electrical function of the regulator through the connection of aluminum substrate / ceramic substrate / PCBA circuit assembly and the support. In order to meet the requirements of quality, appearance, reliability, production and cost, etc., and to solve the vulcanization failure problem of the circuit assembly, the current preferred product structure is the structure of support+PCBA circuit assembly. However, in the structure of support+PCBA, the support insert is required to be connected with the PCBA circuit assembly by tin soldering / drop welding. In this process, due to the high temperature of the welding head and the space limitation of the support, the welding head is easy to burn or the high temperature radiation causes the edge of the support to melt, resulting in poor product appearance and reduced product reliability. SUMMARY

[0004] In order to solve the problem of burning or damaging the support during welding, the present application provides a welding protection device and method for an automobile regulator, which aims to avoid damage to the support during welding, ensure the appearance of the product and improve the reliability of the product. In order to achieve the above technical purpose, the present application adopts the following technical scheme:

[0005] A welding protection device for an automobile regulator, comprising a transfer platform, a protection device and a top rod, wherein the transfer platform is provided below with a slide rail, the transfer platform is provided above with a fixed connection of a cushion block, the cushion block is provided above with a fixed connection of a fixed seat, the fixed seat is provided above with a fixed connection of a product mounting and fixing jig, the protection device comprises a connecting shaft, the first end of the connecting shaft is fixedly connected with a splayed limiting rod, the splayed limiting rod comprises a first splayed limiting rod and a second splayed limiting rod, the second end of the connecting shaft is hingedly connected with the side surface of the cushion block, the second end of the connecting shaft is fixedly connected with a driving protection arm in the direction away from the transfer platform, the end of the driving protection arm away from the connecting shaft is fixedly connected with a protection sheet, and one end of the top rod is fixed and the other end is located between the splayed limiting rods.

[0006] Preferably, the top rod is arranged in parallel with the connecting shaft, and the slide rail is arranged perpendicularly to the top rod.

[0007] Preferably, the rotation angle of the protection device is 90°.

[0008] Preferably, the protective sheet is hollowed in the middle and shaped like a Chinese character.

[0009] The application also provides a working method of the welding protection device for the automobile regulator, comprising the following steps:

[0010] S1: initially, the protective sheet is lifted to be 90° with the horizontal plane;

[0011] S2: the product to be welded is placed in the product mounting fixture and fixed;

[0012] S3: the transfer platform slides on the slide rail, so that the ejector rod contacts the first eight-shaped limiting rod;

[0013] S4: the transfer platform continues to slide on the slide rail, so that the ejector rod drives the protection device to rotate;

[0014] S5: after the protection device rotates 90°, the transfer platform stops sliding, at this time, the protective sheet is parallel to the horizontal plane, and the protective sheet is above the product to be welded;

[0015] S6: after the welding is completed, the transfer platform reversely slides on the slide rail, so that the ejector rod contacts the second eight-shaped limiting rod;

[0016] S7: the transfer platform continues to reversely slide on the slide rail, so that the ejector rod drives the protection device to reversely rotate;

[0017] S8: after the protection device reversely rotates 90°, the transfer platform stops sliding, at this time, the protective sheet is 90° with the horizontal plane;

[0018] S9: steps S2-S8 are repeated until the welding is completed.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The application sets the protection device, the transfer platform slides on the slide rail, the ejector rod contacts the first eight-shaped limiting rod and the second eight-shaped limiting rod respectively, and drives the protection device to rotate, so that the protective sheet rotates, solves the problem that the welding head burns or damages the support in the welding process of the support+PCBA structure, improves the appearance of the product and improves the reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1It is a schematic structural diagram of the product to be welded.

[0023] Figure 2 It is a schematic structural diagram of the welding protection device when the protection piece is parallel to the horizontal plane.

[0024] Figure 3 It is a schematic structural diagram of the welding protection device when the protection piece forms a 90° angle with the horizontal plane.

[0025] Figure 4 It is a schematic structural diagram of the welding protection device at another angle when the protection piece is parallel to the horizontal plane.

[0026] Figure 5 It is a schematic structural diagram of the protection device.

[0027] In the figure: 1. Transfer platform; 2. Cushion block; 3. Fixed seat; 4. Product installation and fixing jig; 5. Protection device; 5-1. First eight-shaped limiting rod; 5-2. Second eight-shaped limiting rod; 5-4. Connecting shaft; 5-5. Driving protection arm; 5-6. Protection piece; 6. Thrust rod; 7. Support; 8. Welding position. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figures 1-5 shown, a welding protection device for an automotive regulator includes a transfer platform 1, a protection device 5, and a thrust rod 6. A slide rail is provided below the transfer platform 1. A cushion block 2 is fixedly connected above the transfer platform 1. A fixed seat 3 is fixedly connected above the cushion block 2. A product installation and fixing jig 4 is fixedly connected above the fixed seat 3. The cross-sections of the transfer platform 1 and the fixed seat 3 are rectangular, and the cross-section of the cushion block 2 is I-shaped. The protection device 5 includes a connecting shaft 5-4. A first end of the connecting shaft 5-4 is fixedly connected with an eight-shaped limiting rod. The eight-shaped limiting rod includes a first eight-shaped limiting rod 5-1 and a second eight-shaped limiting rod 5-2. A second end of the connecting shaft 5-4 is hinged to the side surface of the cushion block 2. A driving protection arm 5-5 is fixedly connected to the second end of the connecting shaft 5-4 in a direction away from the transfer platform 1. A protection piece 5-6 is fixedly connected to an end of the driving protection arm 5-5 away from the connecting shaft 5-4. One end of the thrust rod 6 is fixed, and the other end is located between the eight-shaped limiting rods. The thrust rod 6 is arranged parallel to the connecting shaft 5-4, and the slide rail is arranged perpendicular to the thrust rod 6. The rotation angle of the protection device 5 is 90°. The middle of the protection piece 5-6 is hollowed out and is in a return shape. The product to be welded includes a PCBA and a support 7 outside it. A plurality of welding positions 8 are provided on the PCBA.

[0030] The application also provides a working method of the welding protection device for the automobile regulator, comprising the following steps:

[0031] S1: initially, the protection sheet 5-6 is lifted to be 90° with the horizontal plane;

[0032] S2: the product to be welded is placed in the product mounting and fixing jig 4 and fixed;

[0033] S3: the transfer platform 1 is slid on the slide rail, so that the jacking rod 6 is in contact with the first eight-shaped limiting rod 5-1;

[0034] S4: the transfer platform 1 continues to slide on the slide rail, so that the jacking rod 6 drives the protection device 5 to rotate;

[0035] S5: after the protection device 5 rotates 90°, the transfer platform 1 stops sliding, at this time, the protection sheet 5-6 is parallel to the horizontal plane, and the protection sheet 5-6 is above the product to be welded, the protection sheet 5-6 protects the support, avoiding the support from being scalded or damaged by the welding head in the welding process;

[0036] S6: after the welding is completed, the transfer platform 1 is reversely slid on the slide rail, so that the jacking rod 6 is in contact with the second eight-shaped limiting rod 5-2;

[0037] S7: the transfer platform 1 continues to reversely slide on the slide rail, so that the jacking rod 6 drives the protection device 5 to reversely rotate;

[0038] S8: after the protection device 5 reversely rotates 90°, the transfer platform 1 stops sliding, at this time, the protection sheet 5-6 is 90° with the horizontal plane;

[0039] S9: the steps S2-S8 are repeated until the welding is completed.

[0040] The application solves the problem that the support 7 is scalded or damaged by the welding head in the welding process of the support+PCBA structure, improves the product appearance and the product reliability by setting the protection device 5, sliding the transfer platform 1 on the slide rail, and making the jacking rod 6 in contact with the first eight-shaped limiting rod 5-1 and the second eight-shaped limiting rod 5-2 respectively to drive the protection device 5 to rotate, so that the protection sheet 5-6 rotates.

Claims

1. A welding protection device for an automotive regulator, comprising a transfer platform (1), a protection device (5), and a push rod (6), characterized in that, A slide rail is provided below the transfer platform (1), and a pad (2) is fixedly connected above the transfer platform (1). A fixed seat (3) is fixedly connected above the pad (2), and a product installation and fixing fixture (4) is fixedly connected above the fixed seat (3). The protective device (5) includes a connecting shaft (5-4). An eight-shaped limit rod is fixedly connected to the first end of the connecting shaft (5-4). The eight-shaped limit rod includes a first eight-shaped limit rod (5-1) and a second eight-shaped limit rod (5-2). The second end of the connecting shaft (5-4) is hinged to the side of the pad (2). A drive protective arm (5-5) is fixedly connected to the second end of the shaft (5-4) in the direction away from the transfer platform (1). A protective plate (5-6) is fixedly connected to one end of the drive protective arm (5-5) away from the connecting shaft (5-4). One end of the top rod (6) is fixed, and the other end is located between the figure-eight limit rods. It slides on the slide rail through the transfer platform (1). The top rod (6) contacts the first figure-eight limit rod (5-1) and the second figure-eight limit rod (5-2) respectively, driving the protective device to rotate, thereby realizing the rotation of the protective plate (5-6).

2. The welding protection device for automotive regulators according to claim 1, characterized in that, The top rod (6) is set parallel to the connecting shaft (5-4), and the slide rail is set perpendicular to the top rod (6).

3. The welding protection device for automotive regulators according to claim 1, characterized in that, The protective device (5) has a rotation angle of 90°.

4. The welding protection device for automotive regulators according to claim 1, characterized in that, The protective sheet (5-6) has a hollow center, forming a square shape.

5. The operating method of the welding protection device for automotive regulators according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Initially, the protective plates (5-6) are raised to a 90° angle with the horizontal plane; S2: Place the product to be welded in the product mounting fixture (4) and fix it; S3: The transfer platform (1) slides on the slide rail, so that the top rod (6) contacts the first figure-eight limit rod (5-1); S4: The transfer platform (1) continues to slide on the slide rail, causing the top rod (6) to drive the protective device (5) to rotate; S5: After the protective device (5) rotates 90°, the transfer platform (1) stops sliding. At this time, the protective plate (5-6) is parallel to the horizontal plane and the protective plate (5-6) is located above the product to be welded. S6: After welding is completed, the transfer platform (1) slides in the opposite direction on the slide rail, so that the top rod (6) contacts the second figure-eight limit rod (5-2); S7: The transfer platform (1) continues to slide in the opposite direction on the slide rail, causing the top rod (6) to drive the protective device (5) to rotate in the opposite direction; S8: After the protective device (5) rotates 90° in the opposite direction, the transfer platform (1) stops sliding. At this time, the protective plate (5-6) is at 90° with the horizontal plane. S9: Repeat steps S2-S8 until welding is complete.

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