Rectifier bridge burn-in tool

Abstract

The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge burn-in tool which comprises a die plate and slot positions, four groups of slot positions are arranged in the die plate, a rectifier bridge chip is arranged in each group of slot positions, a sawtooth groove is arranged behind the die plate, two sides of the die plate are respectively provided with a side wing, and a positioning groove is arranged in each side wing. According to the rectifier bridge burn-connection tool, the positioning holes are formed, the side wings are embedded into the bottoms of the two sides of the mold plate, the relative positions of the positioning bases and the side wings are adjusted through the multiple sets of positioning holes, the positioning bases and the side wings are fixed through the positioning screws, deviation cannot be generated, the mold plate can be taken down from the side wings upwards without disassembling the positioning bases, and the mold plate can be taken down conveniently. The wing feet are positioned by the two groups of positioning grooves, so that the position of the mold plate on the product is ensured to be consistent, the stability during sintering is ensured while the product is convenient to disassemble and take up and down, and the problems of poor flexibility of a single mold, inconvenience in loading and unloading of the product and poor fixing stability of the adjustable mold are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge sintering tool. Background Art

[0002] The rectifier bridge is an important electronic component that converts AC to DC and is widely used in power electronic equipment. It is composed of multiple diodes and realizes the output of DC by rectifying the positive and negative half-cycles of AC. In the production process of the rectifier bridge, the sintering process is a key step. The sintering process firmly connects the rectifier bridge chip to the circuit board at high temperature to ensure its stable operation under high current and high voltage conditions. The quality of sintering directly affects the electrical performance and service life of the rectifier bridge. Therefore, in the production process, there are strict requirements on the stability and accuracy of the sintering process.

[0003] There are two main types of rectifier bridge burning fixtures on the market: single mold and adjustable mold. Single molds usually use single-point positioning to locate the position of the rectifier bridge chip through the internal and external shapes of the slots. Although this design can ensure the accuracy of positioning to a certain extent, it is inconvenient to put the product in and out because the entire mold cannot be adjusted. The entire mold tooling needs to be removed; although the adjustable mold has a certain degree of flexibility in positioning and can adapt to different rectifier bridges by adjusting the position of the mold, its stability is poor and the fixed structure is single, resulting in unstable burning quality, which affects the electrical performance and reliability of the rectifier bridge.

[0004] Therefore, there is an urgent need for a rectifier bridge burning tool to solve the technical defects raised in the above technology. Utility Model Content

[0005] The utility model aims to provide a rectifier bridge sintering tooling to solve the problems of poor flexibility of a single mold, inconvenience in loading and unloading products, and poor stability of adjustable mold fixation proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rectifier bridge sintering tool, including a mold plate and slots, four groups of slots are arranged in the mold plate, a rectifier bridge chip is arranged in each group of slots, a serrated groove is arranged at the rear of the mold plate, side wings are respectively installed on both sides of the mold plate, positioning grooves are opened in the side wings, wing feet are arranged at the bottom ends of both sides of the mold plate, and the wing feet are respectively embedded in the positioning grooves, a group of positioning seats are fixed at the bottom ends of the side wings, and multiple groups of positioning holes are respectively arranged in the positioning seats, mounting holes are opened in the side wings, and positioning screws are fixedly connected between the mounting holes and the positioning holes.

[0007] Preferably, the positioning holes are arranged in a row and in multiple groups, and are distributed vertically at equal intervals in the positioning seat.

[0008] Preferably, two groups of side wings are provided and are respectively located at two sides below the mold plate, and the side wings are symmetrically distributed about the vertical center line of the mold plate.

[0009] Preferably, the wing foot forms a "cross" shape in the positioning groove, and the bottom end and side wall of the wing foot are both in contact with the positioning groove.

[0010] Preferably, the cross-section of the positioning groove is in the shape of an I, which matches the inner diameter of the wing foot.

[0011] Preferably, a group of card blocks are welded on each side of the mold plate below the rectifier bridge chip, and the card blocks correspond to the slot positions one by one.

[0012] Preferably, the slot size matches the sawtooth groove.

[0013] Preferably, the mold plate is a component with a thickness of 0.8 mm, and the mold plate is processed with spacers extending in the height direction of the mold plate on both sides of the groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the rectifier bridge burning tooling not only realizes the convenience of disassembly and upper and lower taking of products, but also ensures the stability during burning, realizes the product angle welding point height consistency, and the welding line is accurate, and realizes the early design operation is more sophisticated and simple, with high consistency and low yield rate of batch products;

[0015] (1) The tooling is assembled in three layers by providing positioning holes, side wings, positioning screws, and positioning seats. The side wings are embedded at the bottom of both sides of the mold plate, and the relative positions of the positioning seats and side wings are adjusted through multiple sets of positioning holes. The positioning seats and side wings are fixed by positioning screws. During sintering, the mold plate can be removed upward from the side wings without removing the positioning seats. When the mold plate is assembled on the side wings, no deviation will occur. The two sets of positioning grooves position the wing feet to ensure that the position of the mold plate on the product is consistent, which is convenient for disassembling and taking the product up and down, while ensuring stability during sintering;

[0016] (2) The mold plate is provided with four groups of slots. The rectifier bridge chips placed in each group of slots are fixed in shape by the slots and are also provided with a block. Three-point positioning is adopted to ensure that the length of the output line of the rectifier bridge chip is consistent and the left and right angles are consistent, thereby ensuring the accuracy of product sintering. There will be no gaps before and after sintering, and vibration will not cause displacement during tunnel furnace welding. The angle of the product is consistent and the welding line is accurate.

[0017] (3) By setting up the rectifier bridge chip and mold plate, the tooling design is precise, the integrity is strong, and it is adjustable. If deformation and damage occur due to long-term sintering, the damaged part can be directly disassembled and replaced. Each set of rectifier bridge chips and mold plates are well matched and have smaller tolerances. It is more sophisticated and simple in the early design operation. After the tunnel furnace welding is completed, the consistency is high, and the yield rate of batch products is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the mold plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the slot structure from top view of the utility model;

[0021] Figure 4 It is a schematic diagram of the installation position of the rectifier bridge chip of the utility model in the slot.

[0022] In the figure: 1. mold plate; 2. positioning seat; 3. side wing; 4. positioning groove; 5. mounting hole; 6. positioning hole; 7. positioning screw; 8. slot; 9. serrated groove; 10. rectifier bridge chip; 11. clamp block; 12. wing foot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-4 , a rectifier bridge sintering tooling comprises a mold plate 1 and slots 8, four groups of slots 8 are arranged in the mold plate 1, a rectifier bridge chip 10 is arranged in each group of slots 8, a serrated groove 9 is arranged at the rear of the mold plate 1, side wings 3 are respectively installed on both sides of the mold plate 1, positioning grooves 4 are opened in the side wings 3, wing feet 12 are arranged at the bottom ends of both sides of the mold plate 1, and the wing feet 12 are respectively embedded in the positioning grooves 4, a group of positioning seats 2 are fixed at the bottom ends of the side wings 3, and a plurality of groups of positioning holes 6 are respectively arranged in the positioning seats 2, a mounting hole 5 is opened in the side wings 3, and a positioning screw 7 is fixedly connected between the mounting hole 5 and the positioning hole 6, and the positioning holes 6 are arranged in a row and multiple groups, which are evenly spaced vertically in the positioning seat 2;

[0025] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the tooling adopts a three-layer assembly type, by embedding the side wings 3 at the bottom of both sides of the mold plate 1, and then adjusting the relative positions of the positioning seat 2 and the side wings 3 through multiple groups of positioning holes 6, and fixing the positioning seat 2 and the side wings 3 through positioning screws 7. When sintering, the mold plate 1 can be removed upward from the side wings 3 without removing the positioning seat 2. When the mold plate 1 is assembled on the side wings 3, no offset will occur, and two groups of positioning grooves 4 position the wing feet 12.

[0026] Embodiment 2: Two groups of side wings 3 are provided and are respectively located on both sides below the mold plate 1. The side wings 3 are symmetrically distributed about the vertical center line of the mold plate 1. The wing foot 12 forms a "cross" shape in the positioning groove 4. The bottom end and the side wall of the wing foot 12 are both fitted with the positioning groove 4. The cross-section of the positioning groove 4 is in the shape of a "one", which matches the inner diameter of the wing foot 12. A group of card blocks 11 are welded below each side of the rectifier bridge chip 10 of the mold plate 1, and the card blocks 11 correspond to the positions of the slots 8 one by one;

[0027] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the mold plate 1 is provided with four groups of slots 8. The rectifier bridge chips 10 placed in each group of slots 8 are fixed in shape by the slots 8 and are also secured by clamping blocks 11. Three-point positioning is adopted to ensure that the length of the output lines of the rectifier bridge chips 10 are consistent and the left and right angles are consistent.

[0028] Embodiment 3: The size of the slot 8 matches the sawtooth slot 9, the mold plate 1 is a 0.8 mm thick component, and the mold plate 1 is processed with spacers extending in the height direction of the mold plate 1 on both sides of the slot 8;

[0029] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the tooling is precisely designed, has strong integrity, and is adjustable. If deformation and damage occur due to long-term sintering, the damaged part can be directly disassembled and replaced. Each group of rectifier bridge chips 10 and the mold plate 1 have a good match and smaller tolerance.

[0030] Working principle: When the utility model is in use, it is first assembled, and the tooling adopts a three-layer assembly type. The side wings 3 are embedded in the bottom of both sides of the mold plate 1, and then the relative positions of the positioning seat 2 and the side wings 3 are adjusted through multiple groups of positioning holes 6. The positioning seat 2 and the side wings 3 are fixed by positioning screws 7. During sintering, the mold plate 1 can be removed upward from the side wings 3 without removing the positioning seat 2. When the mold plate 1 is assembled on the side wings 3, no offset will occur. Two groups of positioning grooves 4 position the wing feet 12 to ensure that the position of the mold plate 1 on the product is consistent. Four groups of slots 8 are provided at the mold plate 1. In addition to being fixed by the shape of the rectifier bridge chip 10 placed in each group of slots 8, a clamping block 11 is added to the position. Three-point positioning is adopted to make the length of the outlet line of the rectifier bridge chip 10 consistent and the left and right angles consistent, thereby ensuring the sintering accuracy of the product. There will be no gap before and after sintering, and vibration will not cause displacement during welding in the tunnel furnace.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rectifier bridge sintering tool, comprising a die plate (1) and a slot (8), characterized in that: The mold plate (1) is provided with four groups of slots (8), each group of slots (8) is provided with a rectifier bridge chip (10), a serrated groove (9) is provided at the rear of the mold plate (1), side wings (3) are respectively installed on both sides of the mold plate (1), positioning grooves (4) are provided in the side wings (3), wing feet (12) are provided at the bottom ends of both sides of the mold plate (1), and the wing feet (12) are respectively embedded in the positioning grooves (4), a group of positioning seats (2) are fixed at the bottom ends of the side wings (3), and a plurality of positioning holes (6) are respectively provided in the positioning seats (2), a mounting hole (5) is provided in the side wings (3), and a positioning screw (7) is fixedly connected between the mounting hole (5) and the positioning hole (6).

2. The rectifier bridge sintering tool according to claim 1, characterized in that: The positioning holes (6) are arranged in a row and in multiple groups, and are distributed vertically at equal intervals in the positioning seat (2).

3. The rectifier bridge sintering tool according to claim 1, characterized in that: The side wings (3) are provided in two groups and are respectively located on two sides below the mold plate (1), and the side wings (3) are symmetrically distributed about the vertical center line of the mold plate (1).

4. The rectifier bridge sintering tool according to claim 1, characterized in that: The wing foot (12) forms a "cross" shape in the positioning groove (4), and the bottom end and side wall of the wing foot (12) are both in contact with the positioning groove (4).

5. The rectifier bridge sintering tool according to claim 1, characterized in that: The cross section of the positioning groove (4) is in the shape of a letter "I" and matches the inner diameter of the wing foot (12).

6. The rectifier bridge sintering tool according to claim 1, characterized in that: The mold plate (1) is welded with a group of card blocks (11) below each side of the rectifier bridge chip (10), and the card blocks (11) correspond to the slots (8) in a one-to-one manner.

7. The rectifier bridge sintering tool according to claim 1, characterized in that: The size of the slot (8) matches the sawtooth slot (9).

8. The rectifier bridge sintering tool according to claim 1, characterized in that: The mold plate (1) is a component with a thickness of 0.8 mm. The mold plate (1) is provided with spacers extending in the height direction of the mold plate (1) on both sides of the groove (8).

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