A tooling device for diode soldering

Abstract

This utility model discloses a tooling device for diode welding, including a lower mold, a middle mold, a placement groove, a lead channel, a welding channel, a fixing ring groove, an upper mold, a fixing channel, and a fixing component. The fixing component passes through the upper opening of the fixing channel until its lower end contacts the upper end of the diode socket. The lower mold, middle mold, and upper mold constitute the main welding receiving body. The lower mold serves as the receiving base structure, and its assembly sequence is lead wire—solder pad—chip—solder pad. The middle mold on the upper side is equipped with a diode socket. The corresponding processing placement groove and welding channel between the two constitute a processing channel. The upper mold with a fixing groove and fixing channel is further connected externally. The fixed channel formed by the external fixing component can squeeze and fix the diode socket, effectively reducing the gaps caused by the "bowl-shaped" structure of the diode socket welding table and improving the welding effect.

Description

Technical Field

[0001] This utility model relates to the field of electrical component welding equipment, and in particular to a tooling equipment for diode welding. Background Technology

[0002] A diode is an electronic device made of semiconductor materials, possessing unidirectional conductivity. It is particularly useful in various electronic circuits, where diodes are connected in conjunction with resistors, capacitors, inductors, and other components to form circuits with different functions. Currently, most diodes are soldered using assembly and soldering fixtures with the socket at the bottom. This type of fixture meets the assembly and soldering requirements when the socket's soldering platform is planar. However, if the socket's soldering platform is non-planar, such as having a "bowl-shaped" structure, existing soldering fixtures create a gap between the bottom of the upper die and the socket's soldering platform due to the bowl-shaped structure. When the gap height exceeds the thickness of the solder pad, the upper die fails to position the solder pad, leading to solder pad displacement during assembly. This results in products with large holes, numerous short circuits, and a low product yield. To improve the soldering yield of these diodes, we propose a new diode soldering fixture structure to address the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a tooling device for diode welding, to solve the problem in the existing technology where, for diodes with a "bowl-shaped" structure on the welding platform of the diode socket, a gap exists between the bottom of the upper mold and the welding platform of the socket due to the "bowl-shaped" structure. When the gap height exceeds the thickness of the solder piece, the upper mold fails to position the solder piece. This leads to solder piece displacement during assembly, resulting in large holes, numerous short circuits, and a low product qualification rate in the final welded product.

[0004] The technical solution of this utility model is as follows: A tooling device for diode welding, comprising a lower mold, a middle mold provided on the upper end face of the lower mold, and a tube seat connected to the upper end face of the middle mold.

[0005] The upper end face of the lower mold is provided with multiple sets of placement slots, and the bottom of the inner side of the placement slot is provided with a through-wire channel.

[0006] The upper end face of the middle mold, and the upper side of the placement groove, is provided with a welding channel that runs vertically through it. The upper opening of the welding channel is provided with a fixing ring groove, and the edge of the tube seat is connected to the inner side of the ring groove.

[0007] The upper end face of the middle mold is provided with an upper mold, and the upper end face of the upper mold and the upper side of the fixed ring groove are provided with a fixed groove, and the bottom wall of the inner side of the fixed groove is provided with a fixed channel that runs through the upper and lower sides.

[0008] A fastener passes through the upper opening of the fixing channel until its lower end contacts the upper end of the tube seat.

[0009] Furthermore, it also includes a pad block, which is disposed on the lower side of the lower mold and connected to it by a first connector.

[0010] Further, the first connector includes:

[0011] The first connecting body serves as the connecting substrate;

[0012] The first threaded post is disposed at one end of the connecting body and passes through the lower mold to cooperate with and connect with the middle mold;

[0013] A connecting post is provided at the other end of the connecting body, and the connecting body is connected to the pad block.

[0014] Furthermore, the edges of the middle mold and the upper mold are connected by a second connector.

[0015] Furthermore, the second connector includes:

[0016] The second connecting body serves as the connecting substrate;

[0017] The second threaded post is disposed at one end of the second connecting body;

[0018] The third threaded post is disposed at the other end of the second connecting body and passes through the upper mold to cooperate with the middle mold.

[0019] Furthermore, a pressure block is provided on the upper side of the upper mold, and the pressure block is connected to the upper end of the second threaded column.

[0020] The advantages of this utility model compared with the prior art are as follows: The main welding receiving body is composed of a lower mold, a middle mold, and an upper mold. The lower mold serves as the receiving base structure, and its assembly sequence is lead wire—solder pad—chip—solder pad. The middle mold on the upper side is equipped with a tube seat. The corresponding processing placement groove and welding channel between the two form a processing channel. The upper mold with a fixing groove and a fixing channel is further connected externally. The fixed channel can be externally fixed to squeeze and fix the tube seat, effectively reducing the gaps caused by the "bowl-shaped" structure of the tube seat welding table and improving the welding effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall structure of this utility model;

[0023] Figure 3 for Figure 2 Sectional view along the center line at point "AA";

[0024] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0025] Figure 5 This is a schematic diagram of the overall structure of the middle mold in this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the pad block of this utility model;

[0027] Figure 7 This is a schematic diagram of the overall structure of the first connecting member of this utility model;

[0028] Figure 8 This is a schematic diagram of the overall structure of the lower mold of this utility model;

[0029] Figure 9 This is a schematic diagram of the overall structure of the lower mold of this utility model;

[0030] Figure 10 This is a schematic diagram of the overall structure of the second connector of this utility model;

[0031] Figure 11 This is a schematic diagram of the overall structure of the fastener of this utility model;

[0032] Figure 12 This is a schematic diagram of the overall structure of the upper mold of this utility model. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0036] See Figure 1-12 This invention discloses a tooling device for diode welding, comprising a lower mold 4, a middle mold 5 on the upper end face of the lower mold 4, and a tube seat 901 connected to the upper end face of the middle mold 5; the upper end face of the lower mold 4 has multiple sets of placement grooves 41, and the bottom of the placement grooves 41 has a through-wire channel 40; the upper end face of the middle mold 5 has a through-wire welding channel 52 on the upper side of the placement grooves 41, and the upper opening of the welding channel 52 has a fixing ring groove 51, the edge of the tube seat 901 is connected to the inner side of the ring groove 51; the upper end face of the middle mold 5 has an upper mold 6, and the upper end face of the upper mold 6 has a fixing groove 61 on the upper side of the ring groove 51, the bottom wall of the fixing groove has a through-wire channel 60; and a fixing member 9, which passes through the upper opening of the fixing channel 60 until its lower end abuts against the upper end face of the tube seat 901. In use, the formed lead seat is placed in the lead channel 40. The lead channel 40 formed on the lower side is used to place the lead 2. The upper side of the formed lead seat is placed with solder pad 902, chip 903 and solder pad 902 from bottom to top. The middle mold 5 with fixing groove 61 is placed on the upper end face of the lower mold 4, so that the opening of the fixing groove 61 is at the opening of the placement groove 41 to form a corresponding, forming a complete processing channel. The opening at the upper end of the placement groove 41 of the lower mold 4 is also formed with an annular groove 51 for placing the tube seat 901. The edge of the tube seat 901 is inserted into the annular groove 51, so that the opening at the upper end face of the soldering channel 52 is in a closed state. Furthermore, an upper mold 6 with a fixed channel 60 is placed on the upper side of the middle mold 5. The lower opening of the fixed groove 61 corresponds to the upper opening of the annular groove 51, and the opening diameters of the two are the same, or the opening diameter of the fixed groove 61 is larger than the opening diameter of the annular groove 51. The tube seat 901 is covered by the fixed channel 60, which involves the vertical passage. An external fixing member 9 can be connected to it, so that the lower end of the fixing member 9 presses against the upper end face of the tube seat 901. The tube seat 901 is continuously adjusted to pass through the fixed channel 60 and press against the tube seat 901, thereby reducing the gap between the bottom of the upper mold and the welding table of the tube seat due to the "bowl-shaped" structure of the tube seat welding table. The upper mold 6 can simultaneously play the role of limiting the tube seat and conducting heat.

[0037] Specifically, it also includes a pad 1, which is disposed on the lower side of the lower mold 4 and connected to it by a first connector 3. During assembly, the tube socket and the solder pad do not contact each other; the positions of the lead wire 2, solder pad 902, and chip 903 are fixed only by soldering the lead wire channel 40 of the lower mold 4. When entering the soldering furnace, the pad 1 lifts the lead wire 2, solder pad 902, and chip 903, allowing the solder pad 902 to contact the tube socket 901. This reduces short circuits caused by solder pad displacement due to vibration during the transfer process.

[0038] participate Figure 1 , 3 In 4 and 5, the first connecting member 3 specifically includes a first connecting body 30, which serves as a connecting base; a first threaded post 31, which is disposed at one end of the connecting body 30 and passes through the lower mold 4 to cooperate with the middle mold 5; and a connecting post 32, which is disposed at the other end of the connecting body 30, and the connecting body 30 cooperates with the pad block 1. The middle section of the first connector 3 serves as the connecting base, with first threaded posts 31 at both ends. The first threaded posts 31 pass through the lower mold 4 and the middle mold 5. The lower mold 4 has a first connecting hole 42 that runs vertically through it at its edge. The middle mold 5 also has a second connecting hole 50 corresponding to the first connecting hole 42 at its end face edge. The first threaded post 31 passes through the first connecting hole 42 first and then enters the inner side of the second connecting hole 50. Both are threaded, thus fixing the lower mold 4 and the middle mold 5. The edge of the end face of the pad 1 is also provided with a third connecting hole 10 corresponding to the first connecting hole 42, which facilitates the connection with the connecting post 32.

[0039] Specifically, to ensure that the middle mold 5 and the upper mold 6 do not separate during processing, the edges of the middle mold 5 and the upper mold 6 are connected by a second connecting member 7. The second connecting member 7 includes a second connecting body 70, which serves as the connecting base; a second threaded post 71, located at one end of the second connecting body 70; and a third threaded post 72, located at the other end of the second connecting body 70, passing through the upper mold 6 and engaging with the middle mold 5. (See reference...) Figure 3 and Figure 12 In the middle mold, the edge of the upper mold 6 end face is also provided with a fourth connecting hole 62 corresponding to the second connecting hole 50. The third threaded post 72 passes through the connecting hole formed by the upper mold 6 and the middle mold 5 and is connected to each other by threaded engagement. The first connecting piece 3 and the second connecting piece 7 can be used to connect the lower mold 4, the middle mold 5 and the upper mold 6 into a whole, improving the processing stability.

[0040] Specifically, the upper mold 6 is provided with a pressure block 8 on its upper side. The pressure block 8 is connected to the upper end of the second threaded post 71. The pressure block 8 formed is also provided with a fifth connecting hole 80 at its edge, which corresponds to the fourth connecting hole 62, so as to facilitate the cooperation with the second threaded post 71. Common nuts are used as fasteners.

[0041] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A tooling device for diode welding, comprising a lower mold (4), wherein a middle mold (5) is provided on the upper end face of the lower mold (4), and a tube seat (901) is connected to the upper end face of the middle mold (5), characterized in that: The lower mold (4) has multiple sets of placement slots (41) on its upper end face, and the bottom of the inner side of the placement slot (41) has a through-wire channel (40). The upper end face of the middle mold (5) and the upper side of the placement groove (41) are provided with a welding channel (52) that runs through the upper and lower sides. The upper opening of the welding channel (52) is provided with a fixing ring groove (51). The edge of the tube seat (901) is connected to the inner side of the ring groove (51). The upper end face of the middle mold (5) is provided with an upper mold (6), and the upper end face of the upper mold (6) and the upper side of the fixed ring groove (51) are provided with a fixed groove (61), and the bottom wall of the inner side of the fixed groove is provided with a fixed channel (60) that runs through the upper and lower sides. The fastener (9) passes through the upper opening of the fixed channel (60) until its lower end contacts the upper end of the tube seat (901).

2. The tooling equipment for diode welding according to claim 1, characterized in that, It also includes a pad (1), which is disposed on the lower side of the lower mold (4) and connected to it by a first connector (3).

3. The tooling equipment for diode welding according to claim 2, characterized in that, The first connector (3) includes: The first connecting body (30) serves as the connecting base; The first threaded post (31) is disposed at one end of the connecting body (30) and passes through the lower mold (4) to cooperate with the middle mold (5); A connecting post (32) is provided at the other end of the connecting body (30), and the connecting body (30) is connected to the pad (1).

4. The tooling equipment for diode welding according to claim 2, characterized in that, The middle mold (5) and the upper mold (6) are connected at their edges by a second connector (7).

5. The tooling equipment for diode welding according to claim 4, characterized in that, The second connector (7) includes: The second connecting body (70) serves as the connecting base; The second threaded post (71) is disposed at one end of the second connecting body (70); The third threaded post (72) is located at the other end of the second connecting body (70) and passes through the upper mold (6) to cooperate with the middle mold (5).

6. The tooling equipment for diode welding according to claim 5, characterized in that, The upper mold (6) is provided with a pressure block (8) on its upper side, and the pressure block (8) is connected to the upper end of the second threaded column (71).

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