Welding auxiliary tool

Abstract

The utility model discloses an auxiliary welding tool which comprises a hot plate, a base and an air ejector pipe. The base is provided with a mounting groove, and the hot plate is arranged in the mounting groove; and an air outlet of the air spraying pipe is positioned above the hot plate. The adjusting element and the gas ejector pipe are arranged, the gas ejector pipe is located above the position needing to be welded, inert gas ejected by the gas ejector pipe can protect welding flux at the position needing to be welded, the situation that the welding flux is oxidized, and the welding strength is affected is avoided, and therefore the welding stability is improved; and the technical effect of improving the welding yield and the welding efficiency is achieved. And meanwhile, the hot plate is fixed in the mounting groove, the situation that the hot plate moves to the position making contact with the worker in the welding process, and the worker is scalded can be avoided, and therefore the technical effect of improving operation safety is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic packaging, and particularly relates to a welding auxiliary tooling. Background Technique

[0002] In the field of electronic packaging, compared with the traditional epoxy conductive adhesive bonding, eutectic soldering has the advantages of high thermal conductivity, low resistance, fast heat transfer, strong reliability, large shear force after bonding, etc., so that eutectic soldering has been widely used. Specifically, eutectic soldering can be used in scenarios such as the bonding of chips and substrates, the bonding of substrates and packages, and package capping. Among them, manual eutectic soldering belongs to a type of eutectic soldering and can be applied in scenarios such as small-batch electronic packaging.

[0003] An auxiliary device for manual eutectic soldering operators disclosed in the existing patent No. CN218081116U specifically includes a hot stage, an upper support stage, a lower support stage, and support columns. The upper support stage and the lower support stage are connected by support columns. Both the upper support stage and the lower support stage are concave. The hot stage is arranged in the concave parts of the upper support stage and the lower support stage. During actual use, the hot stage is placed in the concave parts of the upper support stage and the lower support stage. This device can effectively support the operator's arm, can well combine operation tools such as a microscope and a hot stage, prevent the operator from being accidentally scalded, reduce operation fatigue, and at the same time can also be used for the reasonable placement of the materials to be assembled, which is beneficial to the picking and placing actions during operation.

[0004] However, the above-mentioned disclosed solution has at least the following deficiencies: 1. During the eutectic soldering process, the position of the hot stage can move along the direction close to or away from the operator, so there is a risk of scalding the staff due to improper operation, leading to safety accidents. 2. Since the temperature of eutectic soldering is relatively high (soldering temperature ≥ 280°C), the solder is extremely easy to oxidize with oxygen, resulting in the oxidation of the solder, reducing the quality of electronic packaging, and seriously affecting the soldering yield and soldering efficiency of the electronic packaging structure. Content of the Utility Model

[0005] In view of the above problems, the utility model discloses a welding auxiliary tooling to overcome the above problems or at least partially solve the above problems.

[0006] In order to achieve the above object, the utility model adopts the following technical solutions:

[0007] A welding auxiliary tooling includes a hot plate, a base, and a gas spray pipe;

[0008] The base is provided with an installation groove, and the hot plate is arranged in the installation groove; the air outlet of the gas spray pipe is located above the hot plate.

[0009] Further, it further includes an adjustment element; the adjustment element includes a slider and a movable arm;

[0010] A chute matching the slider is provided on the base, and the slider is slidably connected to the chute; the movable arm is respectively connected to the slider and the air injection pipe.

[0011] Further, the bracket is located between the slider and the movable arm and is respectively connected.

[0012] Further, the bracket is detachably connected to the slider.

[0013] Further, it further includes a first magnetic attraction member and a second magnetic attraction member;

[0014] The first magnetic attraction member is arranged on the bracket, the second magnetic attraction member is arranged on the slider, and a magnetic attraction force for mutual attraction is generated between the first magnetic attraction member and the second magnetic attraction member.

[0015] Further, the slider includes a sliding end and a limiting end;

[0016] One end face of the sliding end extends above the base and is in contact with the base; the limiting end is fixed on the sliding end in the chute.

[0017] Further, at least one surface of the slider in contact with the inner wall of the chute is provided with a ball, and the ball is in rolling connection with the inner wall of the chute.

[0018] Further, a notch is formed on one side surface of the base.

[0019] Further, the base includes a support plate and a plurality of support rods; the notch is located on the side surface of the support plate, and the bottom surface of the support plate is fixedly connected to the plurality of support rods.

[0020] Further, the air injection pipe is a corrugated pipe.

[0021] The advantages and beneficial effects of the present utility model are:

[0022] In the welding auxiliary tooling of the present utility model, by providing an air injection pipe and using the air injection pipe located above the position to be welded, the inert gas ejected by the air injection pipe can provide protection for the solder at the position to be welded, avoiding the situation that the solder is oxidized and affecting the welding strength, thereby improving the stability of welding and achieving the technical effects of improving the welding yield and welding efficiency. At the same time, by fixing the hot plate in the installation groove, it can avoid the situation that the hot plate moves to a position in contact with the staff during the welding process, causing burns to the staff, thereby achieving the technical effect of improving the operation safety. Description of the Drawings

[0023] Various other advantages and benefits will become clear to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0024] Figure 1 is a schematic diagram of the external structure of the welding auxiliary tooling of this embodiment;

[0025] Figure 2 is an exploded view of the chute, slider and bracket in the welding auxiliary tooling of this embodiment;

[0026] Figure 3 is an exploded view of the first magnetic attraction member and the bracket in the welding auxiliary tooling of this embodiment;

[0027] Figure 4 is a schematic diagram of the structure of the connection between the slider and the chute in the welding auxiliary tooling of other embodiments.

[0028] In the figure: 1, hot plate; 2, base; 3, air jet pipe; 5, bracket; 6, first magnetic attraction member; 7, bolt; 21, installation groove; 22, chute; 23, support plate; 24, support rod; 25, notch; 31, air outlet of the air jet pipe; 41, slider; 42, movable arm; 51, first support plate; 52, second support plate; 53, placement groove; 221, bottom of the chute; 411, sliding end; 412, limiting end; 511, through hole; 4121, plane of the limiting end that forms a contact surface with the notch of the chute; 4122, plane of the limiting end that forms a contact surface with the bottom of the chute. Detailed Embodiments

[0029] To make the purpose, technical solutions and effects of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0030] The following will detail the technical solutions provided by each embodiment of the present utility model in conjunction with the drawings.

[0031] Combined with Figures 1 to 3As shown in the figure, this embodiment discloses a welding auxiliary tooling, which can be applied in the field of eutectic welding, for example. Among them, the welding auxiliary tooling includes a hot plate 1, a base 2, and a gas injection pipe 3. The top surface of the base 2 is provided with an installation groove 21, and the hot plate 1 is fixed in the installation groove 21. The welding piece is placed on the hot plate 1. The air outlet 31 of the gas injection pipe is located above the hot plate 1. The air inlet of the gas injection pipe 3 is connected to a container containing an inert gas source, and is used to spray inert gas, such as nitrogen, toward the required welding position. Based on this, the position of the hot plate can be fixed through the installation groove, avoiding the situation where the hot plate moves to a position in contact with the staff and causing scalding of the staff, thereby achieving the technical effect of improving the safety of welding operations. At the same time, during the welding process, the gas injection pipe sprays inert gas toward the required welding position. Through the protection of the inert gas, oxidation of the solder at the required welding position can be avoided, which affects the stability of welding, thereby improving the welding quality of eutectic welding, and further achieving the technical effects of improving the welding yield and welding efficiency of eutectic welding.

[0032] In the welding auxiliary tooling of this embodiment, by setting the gas injection pipe, and using the fact that the gas injection pipe is located above the required welding position, the inert gas sprayed by the gas injection pipe can provide protection for the solder at the required welding position, avoiding the situation where the solder is oxidized and affects the welding strength, thereby improving the stability of welding, and achieving the technical effects of improving the welding yield and welding efficiency. At the same time, by fixing the hot plate in the installation groove, the situation where the hot plate moves to a position in contact with the staff and causes scalding of the staff during the welding process can be avoided, thereby achieving the technical effect of improving the operation safety.

[0033] In addition, as shown in combination with Figure 1 and Figure 2 In this embodiment, the welding auxiliary tooling further includes an adjustment element. The adjustment element is located between the gas injection pipe 3 and the hot plate 1 and is respectively connected. Based on this, when the required welding position on the welding piece changes, the position of the air outlet 31 of the gas injection pipe relative to the hot plate can be adjusted through the adjustment element, so that the orientation of the air outlet of the gas injection pipe can adapt to the change of the required welding position.

[0034] Among them, the adjustment element includes a slider 41 and a movable arm 42. The base 2 is provided with a chute 22 that matches the slider 41. The slider 41 is arranged in the chute 22 and is slidably connected to the chute 22. The movable arm 42 is respectively connected to the slider 41 and the gas injection pipe 3.

[0035] Specifically, the fixed end of the movable arm 42 (specifically the left end of the movable arm shown in Figure 1 is connected to the slider 41, and the movable end of the movable arm 42 (specifically the Figure 1The right end of the shown movable arm) is fixedly connected to the jet pipe 3. The working principle of the movable arm 42 is the same as that of the universal movable arm, which is used to adjust the angle of the air outlet of the jet pipe 3. Based on this, even if the required welding position changes, the position and angle of the air outlet of the jet pipe can be adjusted so that the air outlet of the jet pipe can move above the required welding position, facilitating the injection of inert protective gas at the required welding position, thereby improving the accuracy of protecting the required welding position.

[0036] In addition, as shown in Figure 1 In this embodiment, the length dimension of the hot plate 1 is equal to or slightly smaller than the length dimension of the installation groove 21, and the width dimension of the hot plate 1 is equal to or slightly smaller than the width dimension of the installation groove 21. That is, the hot plate and the installation groove adopt a clearance fit method, enabling the hot plate to be nested in the installation groove to fix the position of the hot plate.

[0037] Of course, in other embodiments, the length dimension of the installation groove can be greater than the length dimension of the hot plate, the width dimension of the installation groove can be greater than the width dimension of the hot plate, and multiple limiting grooves are provided on the inner wall of the installation groove. When the position of the hot plate is determined, the limiting block is inserted and fixed in the corresponding limiting groove to limit the position of the hot plate, and the technical effect of fixing the position of the hot plate can also be achieved. Further, the position of the hot plate in the installation groove can be adjusted according to actual needs, achieving the technical effect of improving the simplicity of use of the welding auxiliary tooling.

[0038] In addition, as shown in Figure 1 and Figure 2 In this embodiment, the welding auxiliary tooling further includes a bracket 5, a first magnetic attraction member 6, and a second magnetic attraction member (not shown in the figure). The bracket 5 is located between the slider 41 and the movable arm 42 and is respectively connected to support and fix the movable arm.

[0039] Preferably, as shown in Figure 3 the bracket 5 is detachably connected to the slider 41. Based on this, it is convenient to disassemble, install, and replace the bracket according to needs.

[0040] Further, the first magnetic attraction member 6 is fixed in the placement groove 53 provided on the bottom surface of the bracket 5, and the second magnetic attraction member is fixed on the top surface of the slider 41. The magnetic attraction force that can attract each other is generated between the first magnetic attraction member and the second magnetic attraction member, thereby achieving the technical effect of improving the connection stability between the bracket and the slider. At the same time, a round hole can be provided on the first magnetic attraction member for avoiding the bolt 7.

[0041] Of course, in other embodiments, the second mounting plate and the slider can also be magnetic components. That is, the second mounting plate serves as the first magnetic attracting component, and the slider serves as the second magnetic attracting component. Similarly, the attraction between the second mounting plate and the slider can be utilized to achieve the technical effect of improving the position stability between the second mounting plate and the slider.

[0042] In addition, as shown in combination with Figure 1 and Figure 2 in this embodiment, the bracket 5 includes a first support plate 51 and a second support plate 52. The first support plate 51 and the second support plate 52 can be set as rectangles, and the first support plate 51 and the second support plate 52 are fixedly arranged in an "┴" shape, where the vertical part is the second support plate 52 for connecting with the movable arm 42, and the horizontal part is the first support plate 51 which is detachably connected to the slider 41. For example, through holes 511 are provided on the first support plate 51, threaded holes are provided on the slider 41, and bolts 7 pass through the through holes 511 on the bracket 5 and are threadedly connected to the threaded holes on the slider 41 to facilitate the disassembly and assembly of the bracket.

[0043] Furthermore, the first support plate 51 and the second support plate 52 can be integrally connected, or of course, they can also be detachably connected in a split manner, such as by threaded connection, to facilitate the simplicity of disassembly and repair between the first support plate and the second support plate.

[0044] Of course, in other embodiments, the movable arm can also be directly threadedly connected and fixed to the slider. Specifically, threaded holes are provided on both the movable arm and the slider, and the movable arm is detachably connected to the slider by a stud, that is, one end of the stud is threadedly connected to the threaded hole of the movable arm, and the other end of the stud is threadedly connected to the threaded hole of the slider. In this embodiment, based on the setting of the bracket, the bracket and the slider can be detachably connected by a bolt passing through the through hole on the bracket and the threaded hole of the slider, that is, the detachable connection between the bracket and the slider can be completed by using a single threaded connection, thereby achieving the simplicity of the detachable connection between the bracket and the slider.

[0045] It should be noted that in other embodiments, the shapes of the first mounting plate and the second mounting plate can also be adjusted. At the same time, in other embodiments, the connection shape between the first mounting plate and the second mounting plate can also be set as an "L" shape or other shapes to facilitate modification and adjustment according to needs.

[0046] In addition, in other embodiments, the welding auxiliary tooling can also include a track and a self-locking moving block. Among them, the self-locking moving block can be a slider with a self-locking function, and the track can be a linear guide rail.

[0047] Specifically, the track is along the vertical direction (i.e., Figure 1It is fixed on the second support plate in the vertical direction (as shown), and can reciprocate along the length direction of the sliding groove with the slider. The self-locking moving block is slidably connected to the track, that is, it can linearly reciprocate along the Figure 1 shown Z-axis direction, and the movable arm is fixed on the self-locking moving block. Based on this, when there is a large difference between the height of the air outlet of the movable arm and the height of the required welding position, the position of the self-locking moving block on the track can be adjusted to realize the adjustment of the height of the air outlet of the movable arm, so as to achieve the technical effect of improving the simplicity and flexibility of the position adjustment of the movable arm.

[0048] Furthermore, the movable arm is detachably connected to the self-locking moving block. For example, the fixed end of the hoop is fixedly connected to the self-locking moving block, and the adjusting end of the hoop is detachably connected to the movable arm, so as to achieve the technical effect of disassembling, assembling and repairing the movable arm.

[0049] In addition, in combination with Figure 4 shown, the slider 41 includes a sliding end 411 and a limiting end 412. One end face of the sliding end 411, for example Figure 2 shown, the upper end face of the sliding end extends above the top surface of the base and contacts the top surface of the base 2, and is used for detachably connecting with the bracket 5. The limiting end 412 is fixed on the sliding end 411 located in the sliding groove 22.

[0050] Specifically, in this embodiment, in combination with Figure 1 and Figure 2 shown, the sliding groove 22 is located inside the base 2, that is, the sliding groove 22 is surrounded by the base 2, and the position of the slider 41 can be limited by the base 2. Among them, the sliding end 411 can be in the shape of "┌". Based on this, the turning point of the sliding end 411 can form a snap connection with the base 2, so as to improve the sliding stability of the slider in the sliding groove. The horizontal part of the sliding end 411 contacts the bottom surface of the base 2, and the base can support the horizontal part of the sliding end, achieving the technical effect of improving the support stability of the sliding end for the bracket.

[0051] Furthermore, in combination with Figure 2 shown, the limiting end 412 is located at the bottom surface of the sliding end 411, and the limiting end 412 forms a "┴" shape with the vertical part of the sliding end 411. At this time, the Y-axis direction section of the sliding groove 22 is in the shape of "┴". Through the setting of the limiting end, the contact area between the slider and the sliding groove can be increased, and the possibility of the slider shaking during the movement in the sliding groove can be reduced, so as to achieve the technical effect of improving the sliding stability of the slider.

[0052] Preferably, the limiting end 412 is a dovetail block, and the sliding groove corresponding to the limiting end 412 is a dovetail groove. By using the dovetail groove milling cutter originally available on the milling machine, the technical effect of facilitating the processing of the sliding groove can be achieved.

[0053] Furthermore, balls (not shown in the figure) are provided on at least one surface of the slider 41 that contacts the inner wall of the chute 22. For example, balls are provided on the bottom surface of the sliding plate and the side surface of the connecting plate that contacts the inner wall of the chute. By rolling the balls along the inner wall of the chute, the sliding connection is adjusted to a rolling connection, which can reduce the friction force received during the movement of the slider, achieve the technical effect of labor saving, and further reduce the wear of the slider.

[0054] Of course, as shown in Figure 4 In other embodiments, the chute 22 can also be exposed on the side surface of the base 2, that is, a chute 22 is provided on the side surface of the base 2. At this time, the depth direction of the chute 22 is along the Figure 4 horizontal direction shown. The length dimension of the plane 4121 of the limiting end that forms a contact surface with the notch of the chute is smaller than the length dimension of the plane 4122 of the limiting end that forms a contact surface with the bottom 221 of the chute (i.e., the plane opposite to the notch), and / or the width dimension of the plane 4121 of the limiting end that forms a contact surface with the notch of the chute is smaller than the width dimension of the plane 4122 of the limiting end that forms a contact surface with the bottom 221 of the chute. Based on this, it can be ensured that the limiting end slides only along the length direction of the chute, avoiding the situation of the limiting end falling off, thereby achieving the technical effect of improving the sliding stability of the limiting end.

[0055] In addition, the base 2 includes a support plate 23 and a plurality of support rods 24. The top surface of the support plate 23 serves as the top surface of the base 2, and the bottom surface of the support plate 23 is fixedly connected to the plurality of support rods 24 to achieve the technical effect of improving the stability of the top surface position.

[0056] Further, a notch 25 is provided on one side surface of the base, that is, a notch 25 is provided on one side surface of the support plate 23. Workers can perform welding operations within the notch. At the same time, during the working process, the arms of the workers can be supported on the support plate on both sides of the notch, which can achieve the technical effect of reducing operation fatigue.

[0057] In addition, in this embodiment, the air injection pipe 3 is a corrugated pipe. Based on this, the air injection pipe can finely adjust the orientation and height position of the air outlet of the air injection pipe according to the required welding position, achieving the technical effect of improving the accuracy of the inert gas injection position.

[0058] The above is only the specific implementation manner of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or deformations based on the above embodiments. Those skilled in the art should understand that the above specific description is only a better explanation of the purpose of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A welding auxiliary tool, characterized in that: It comprises a hot plate (1), a base (2) and an air jet pipe (3); The base (2) is provided with a mounting groove (21), and the hot plate (1) is arranged in the mounting groove (21); the air outlet (31) of the air jet pipe (3) is located above the hot plate (1).

2. The welding auxiliary tooling according to claim 1, characterized in that: It also includes an adjustment element; the adjustment element includes a slider (41) and a movable arm (42); The base (2) is provided with a slide groove (22) matching the slide block (41), and the slide block (41) is slidably connected to the slide groove (22); the movable arm (42) is respectively connected to the slide block (41) and the air injection pipe (3).

3. The tooling according to claim 2, characterized in that: It also comprises a bracket (5); the bracket (5) is located between the slider and the movable arm and is respectively connected.

4. The welding auxiliary tooling according to claim 3, characterized in that: The bracket (5) is detachably connected to the slider (41).

5. The welding auxiliary tooling according to claim 4, characterized in that: It also includes a first magnetic attraction component (6) and a second magnetic attraction component; The first magnetic attraction member (6) is arranged on the bracket (5), and the second magnetic attraction member is arranged on the slider (41), and a magnetic attraction force of mutual attraction is generated between the first magnetic attraction member (6) and the second magnetic attraction member.

6. The welding auxiliary tooling according to claim 4, characterized in that: The slider (41) comprises a sliding end (411) and a limiting end (412); An end surface of the sliding end (411) extends to the top of the base (2) and contacts the base (2); the limiting end (412) is fixed on the sliding end (411) in the sliding groove (22).

7. The welding auxiliary tooling according to claim 6, characterized in that: A ball bearing is arranged on at least one surface of the slider (41) that contacts the inner wall of the slide groove (22), and the ball bearing is connected to the inner wall of the slide groove (22) in a rolling manner.

8. The welding auxiliary tooling according to claim 1, characterized in that: A notch (25) is provided on one side of the base (2).

9. The welding auxiliary tooling according to claim 8, characterized in that: The base (2) comprises a support plate (23) and a plurality of support rods (24); the notch is located on a side surface of the support plate (23), and the bottom surface of the support plate (23) is fixedly connected to the plurality of support rods (24).

10. The welding auxiliary tool according to any one of claims 1 to 9, characterized in that: The air injection pipe (3) is a corrugated pipe.

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