Energy storage welding electrode assembly and control method thereof

Abstract

The invention provides an energy storage welding electrode assembly and a control method thereof, and relates to the technical field of electronic packaging. The energy storage welding electrode assembly comprises an upper electrode and a lower electrode assembly. The upper electrode assembly comprises an upper carrying table and an upper electrode embedded in the upper carrying table; the lower electrode assembly comprises a lower downloading platform and a lower electrode embedded in the lower downloading platform; a circular weld-aid hole is formed in one end, far away from the lower loading table, of the lower electrode, a plurality of groups of tube leg limiting holes are sequentially formed in the periphery of the weld-aid hole, and the aperture of the weld-aid hole is smaller than the circumferential diameter of a tube leg of a smallest target device in a to-be-capped round tube shell device set; the circumferential diameter of the pipe leg refers to the diameter of the circumference where the pipe leg is located; each group of pipe leg limiting holes are respectively positioned on different circle centers of the upper surface of the lower electrode; the lower electrode is used for fixing a round tube shell device to be capped, the upper electrode is used for pressing a tube cap and a tube shell of the round tube shell device to be capped, cap sealing is carried out through high-frequency pulse discharge, the suitability of the energy storage welding electrode can be improved, the cost is reduced, and the cap sealing efficiency and the yield are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic packaging, and in particular to an energy storage welding electrode assembly and a control method thereof. Background Art

[0002] In the military electronic packaging industry, energy storage welding is mostly used in the capping process of TO packaging. Based on the special hemispherical packaging structure of TO type resin materials, it is mainly composed of four parts: tube cap, tube shell, tube leg and tube core. When capping, the upper and lower electrodes of the energy storage welding machine are used to match the tube shell and the tube cap, and then the pressure and capacitor pulse discharge mechanism are used to weld them together.

[0003] In the existing capping process, when capping round tube shell circuits such as TO-39 type, it is usually necessary to set the tube shell legs in the holes of the lower electrode to achieve fixation. However, due to the different sizes of round tube shells of different TO models, different lower electrodes need to be designed for round tube shell circuits of different TO models, which not only increases the equipment cost, but also reduces the capping efficiency due to the need to frequently replace the lower electrode. At the same time, due to the size deviation of different round tube shells of the same model, the shell will shift during welding, and the weld edge will be uneven and uneven, which will cause leakage in the circuit after capping.

[0004] Military electronic chip circuits have extremely strict standards and requirements for product airtightness. Therefore, circuits packaged using existing capping processes are often scrapped due to failure in airtightness inspections (leakage), which greatly reduces the yield rate. Summary of the invention

[0005] The purpose of this application includes providing a storage energy welding electrode assembly and a control method thereof, which can improve the adaptability of the storage energy welding electrode, reduce equipment costs, and avoid the problem of low capping efficiency caused by frequent replacement of the lower electrode, while also improving the yield rate.

[0006] In a first aspect, the present application provides an energy storage welding electrode assembly, the energy storage welding electrode assembly comprising:

[0007] An upper electrode assembly 100 and a lower electrode assembly 200;

[0008] The upper electrode assembly 100 includes an upper loading platform 110 and a cylindrical upper electrode 120 embedded in the upper loading platform; the lower electrode assembly 200 includes a lower loading platform 210 and a cylindrical lower electrode 220 embedded in the lower loading platform;

[0009] A circular soldering hole 2201 is provided at one end of the lower electrode 220 away from the unloading platform 210, and multiple groups of tube leg limiting holes 2202 are sequentially provided on the periphery of the soldering hole 2201. The aperture of the soldering hole 2201 is smaller than the tube leg circumference diameter of the smallest target device in the set of circular tube shell devices to be sealed; the tube leg circumference diameter refers to the diameter of the circumference of the circle where the tube leg is located; each group of tube leg limiting holes 2202 is respectively located on different center circles on the upper surface of the lower electrode;

[0010] The lower electrode 220 is used to fix the round tube shell device to be capped, and the upper electrode 120 is used to compress the tube cap and tube shell of the round tube shell device to be capped, and perform capping through high-frequency pulse discharge.

[0011] According to a storage welding electrode assembly provided in the present application, a circular electrode fixing hole 2203 is provided at one end of the lower electrode 220 close to the unloading platform 210, and correspondingly, a cylindrical protrusion matching the electrode fixing hole 2203 is provided at one end of the unloading platform 210 close to the lower electrode; the depth of the electrode fixing hole 2203 is the same as the height of the cylindrical protrusion.

[0012] According to an energy storage welding electrode assembly provided by the present application, the unloading platform 210 further includes a lower base 2101, and the lower base 2101 is fixedly arranged on the lower surface of the energy storage type sealing welding machine through a threaded hole;

[0013] An electrode seat 2102 is disposed above the lower base 2101, and the cylindrical protrusion is disposed on the upper surface of the electrode seat 2102;

[0014] A circular electric limiter 2103 is also disposed on the periphery of the cylindrical protrusion, and the lower electrode 220 is disposed in the electric limiter 2103 and engaged with the cylindrical protrusion.

[0015] According to an energy storage welding electrode assembly provided by the present application, the upper electrode 120 and the lower electrode 220 have the same size, and the upper loading platform 110 and the unloading platform 120 have the same structure.

[0016] According to an energy storage welding electrode assembly provided by the present application, the upper electrode assembly 100 further includes an upper electrode clamping unit 130;

[0017] The upper electrode clamping unit 130 includes a ring-shaped structural mold frame 1301, a rod-shaped structure 1302, a cylinder 1303 and an electrode clamp 1304;

[0018] The annular structure mold frame 1301 is fixed on the upper base 1101 of the upper carrier 110 by bolts, the rod-shaped structure 1302 is fixedly connected to the cylinder 1303 and the annular structure mold frame 1301, and the electrode clamp 1304 is transmission-connected to the cylinder 1303 for clamping the upper electrode 120 under the action of the cylinder 1303.

[0019] According to a storage welding electrode assembly provided by the present application, the rod-shaped structure 1302 includes two rod-shaped substructures located at the end points of the diameter of the annular structure mold frame, each rod-shaped substructure is connected to a cylinder 1303, and each cylinder 1303 is connected to an electrode fixture 1304.

[0020] According to an energy storage welding electrode assembly provided by the present application, the electrode clamp 1304 includes an arc-shaped clamping portion, and the curvature of the arc-shaped clamping portion matches the upper electrode 120 .

[0021] According to an energy storage welding electrode assembly provided by the present application, the number of each group of tube leg limiting holes 2202 is at least four, and the apertures of each tube leg limiting hole are the same.

[0022] The present application also provides a control method for an energy storage welding electrode assembly, the control method being applied to the above-mentioned energy storage welding electrode assembly, the control method comprising:

[0023] Step S1, controlling the upper electrode clamping unit to fix the upper electrode;

[0024] Step S2, determining the corresponding target tube leg limiting holes based on the TO model and tube leg layout of the current round tube shell component to be capped, and inserting the tube legs of the round tube shell component to be capped into the target tube leg limiting holes;

[0025] Step S3, starting the sealing welding process of the current round tube shell device to be sealed, and taking out the current round tube shell device to be sealed after the welding is completed;

[0026] Step S4, judging whether the process of the current batch of round tube shell devices to be sealed has been completed, if so, executing step S5, if not, jumping to executing step S2;

[0027] Step S5, outputting process completion indication information.

[0028] According to a control method of an energy storage welding electrode assembly provided by the present application, the method of determining the corresponding target tube leg limiting hole based on the TO model and tube leg layout of the current round tube shell device to be sealed specifically includes:

[0029] Based on the TO model of the current round tube shell component to be sealed, determine the circumferential diameter of the tube legs of the current round tube shell component to be sealed;

[0030] Determine the target tube leg limiting hole group based on the tube leg circumference diameter of the current round tube shell component to be sealed;

[0031] Based on the tube leg layout mode of the current round tube shell device to be sealed, the target tube leg limiting holes in the target tube leg limiting hole group are determined.

[0032] The present application provides an energy storage welding electrode assembly and a control method thereof, wherein the energy storage welding electrode assembly comprises: an upper electrode assembly and a lower electrode assembly; the upper electrode assembly comprises an upper loading platform and a cylindrical upper electrode embedded in the upper loading platform; the lower electrode assembly comprises a lower loading platform and a cylindrical lower electrode embedded in the lower loading platform; a circular soldering hole is provided at one end of the lower electrode away from the lower loading platform, and a plurality of groups of tube leg limiting holes are sequentially provided on the periphery of the soldering hole, the aperture of the soldering hole being smaller than the tube leg circumference diameter of the smallest target device in the set of circular tube shell devices to be capped; the tube leg circumference diameter refers to the diameter of the circle where the tube leg is located; each group of tube leg limiting holes is respectively located on different center circles on the upper surface of the lower electrode; the lower electrode is used to fix the circular tube shell device to be capped, and the upper electrode is used to press the tube cap and tube shell of the circular tube shell device to be capped, and capping is performed by high-frequency pulse discharge, which can improve the adaptability of the energy storage welding electrode, reduce equipment cost, and avoid the problem of low capping efficiency caused by frequent replacement of the lower electrode, and at the same time, can also improve the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of the energy storage welding electrode assembly provided in this application;

[0035] Figure 2 A detailed structural diagram of the lower electrode assembly provided in this application;

[0036] Figure 3 A top view of the lower electrode provided for this application;

[0037] Figure 4 for Figure 3 Sectional view along the cutting line AA;

[0038] Figure 5 A detailed structural diagram of the upper electrode clamping unit provided in this application;

[0039] Figure 6A schematic flow chart of a control method for an energy storage welding electrode assembly provided in the present application;

[0040] Figure 7 A schematic diagram of the process of determining the target pipe leg limiting hole provided in this application.

[0041] Icons: 100-upper electrode assembly; 110-upper loading platform; 120-upper electrode; 130-upper electrode clamping unit; 1301-annular structural mold frame; 1302-rod-shaped structure; 1303-cylinder; 1304-electrode fixture; 200-lower electrode assembly; 210-downloading platform; 2101-lower base; 2102-electrode seat; 2103-electrode limiter; 220-lower electrode; 2201-soldering hole; 2202-tube leg limit hole; 2203-electrode fixing hole. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 application.

[0046] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0047] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0048] Figure 1 The schematic diagram of the structure of the energy storage welding electrode assembly provided in the present application is that the energy storage welding electrode assembly provided in the embodiment of the present application is specifically arranged in the process chamber of the energy storage welding machine to perform the capping process on the round tube shell device to be capped. Figure 1 As shown, the energy storage welding electrode assembly comprises:

[0049] An upper electrode assembly 100 and a lower electrode assembly 200;

[0050] The upper electrode assembly 100 includes an upper loading platform 110 and a cylindrical upper electrode 120 embedded in the upper loading platform; the lower electrode assembly 200 includes a lower loading platform 210 and a cylindrical lower electrode 220 embedded in the lower loading platform;

[0051] A circular soldering hole 2201 is provided at one end of the lower electrode 220 away from the unloading platform 210, and multiple groups of tube leg limiting holes 2202 are sequentially provided on the periphery of the soldering hole 2201. The aperture of the soldering hole 2201 is smaller than the tube leg circumference diameter of the smallest target device in the set of circular tube shell devices to be sealed; the tube leg circumference diameter refers to the diameter of the circumference of the circle where the tube leg is located; each group of tube leg limiting holes 2202 is respectively located on different center circles on the upper surface of the lower electrode;

[0052] The lower electrode 220 is used to fix the round tube shell device to be capped, and the upper electrode 120 is used to compress the tube cap and tube shell of the round tube shell device to be capped, and perform capping through high-frequency pulse discharge.

[0053] Based on the foregoing, it can be known that in the existing capping process, when capping round tube shell circuits such as TO-39 type, it is usually necessary to set the tube shell legs in the holes of the lower electrode to achieve fixation. However, due to the different sizes of round tube shells of different TO models, different lower electrodes need to be designed for round tube shell circuits of different TO models, which not only increases the equipment cost, but also reduces the capping efficiency due to the need to frequently replace the lower electrode. At the same time, due to the size deviation of different round tube shells of the same model, the shell will shift during welding, and the weld edge will be uneven and uneven, which will cause leakage in the circuit after capping. In response to this problem, the embodiment of the present application proposes a storage welding electrode assembly, which aims to improve the adaptability of the energy storage welding electrode, reduce equipment costs, avoid the problem of low capping efficiency caused by frequent replacement of the lower electrode, and improve the yield rate.

[0054] Specifically, Figure 1As shown, the upper electrode assembly 100 includes an upper loading platform 110 and a cylindrical upper electrode 120 embedded in the upper loading platform; the lower electrode assembly 200 includes a lower loading platform 210 and a cylindrical lower electrode 220 embedded in the lower loading platform, the lower electrode 220 is used to fix the circular tube shell device to be capped, and the upper electrode 120 is used to press the tube cap and tube shell of the circular tube shell device to be capped, and cap it through high-frequency pulse discharge. In order to improve the adaptability of energy storage welding electrodes, the embodiments of the present application have conducted an in-depth study on the dimensions of TO-39 type and other circular tube shell devices, wherein the TO-39 type circular tube shell device is divided into a three-leg version and a four-leg version: the tube leg circumference diameter of the two versions is 5.08 mm, and the tube leg diameter of the three-leg version is between 0.406-0.483 mm, wherein two tube legs are respectively arranged at the two end points of the tube leg circumference diameter, and the third tube leg is arranged on the tube leg circumference, and is 90 degrees apart from the other two tube legs; the tube leg diameter of the four-leg version is between 0.41-0.48 mm, and the four tube legs are evenly arranged on the tube leg circumference, and the adjacent tube legs are spaced 90 degrees apart.

[0055] TO-5 round tube shell devices are divided into six-leg version and eight-leg version: the circumferential diameter of the tube legs of the six-leg and eight-leg versions are both between 4.953-5.207 mm, and the diameter of the tube legs is between 0.406-0.483 mm. Four of the tube legs of the six-leg version are respectively arranged at the end points of the circumferential diameters of two tube legs that are perpendicular to each other, and the other two tube legs are arranged at the end points of the circumferential diameter of another tube leg and are spaced 45 degrees from the adjacent tube legs; the eight tube legs of the eight-leg version are evenly arranged on the tube leg circumference, and the adjacent tube legs are spaced 45 degrees apart.

[0056] TO-18 round tube shell devices only have three-leg version: the leg circumference diameter is 2.54 mm, the leg diameter is between 0.41-0.48 mm, and the leg layout is the same as the three-leg version of TO39, where two legs are set at the two end points of the leg circumference diameter, and the third leg is set on the leg circumference, 90 degrees apart from the other two legs.

[0057] TO-46 round tube shell devices are divided into two-leg version, three-leg version and four-leg version: the diameter of the tube legs of the three versions is 2.54 mm, and the diameter of the tube legs is between 0.406-0.483 mm. The two tube legs of the two-leg version are respectively set at the two ends of the diameter of the tube leg circle; the tube leg layout of the three-leg version is the same as the three-leg version of the TO39 type, in which two tube legs are respectively set at the two ends of the diameter of the tube leg circle, and the third tube leg is set on the tube leg circle, and the other two tube legs are separated by 90 degrees; the tube leg layout of the four-leg version is the same as the four-leg version of the TO39 type, and the four tube legs are evenly set on the tube leg circle, and the adjacent tube legs are separated by 90 degrees.

[0058] Through the above research, it can be known that the tube leg diameters of various types of circular tube shell devices are basically the same (that is, the same or the difference is very small and can be ignored). At the same time, the circumferential diameters of the tube legs of TO-39 type circular tube shell devices and TO-5 type circular tube shell devices are similar, and the circumferential diameters of the tube legs of TO-18 type circular tube shell devices and TO-46 type circular tube shell devices are the same. Therefore, TO-39 type circular tube shell devices and TO-5 type circular tube shell devices can be fixed with the same set of tube leg limiting holes, and TO-18 type circular tube shell devices and TO-46 type circular tube shell devices can be fixed with the same set of tube leg limiting holes. Based on this, the embodiment of the present application can realize the capping process of four types of circular tube shell devices through two sets of tube leg limiting holes. Specifically, in a set of tube leg limiting holes corresponding to the TO-39 type circular tube shell device and the TO-5 type circular tube shell device, the number of tube leg limiting holes is 8, which are evenly arranged on the first target center circle on the upper surface of the lower electrode, and each tube leg limiting hole is 45 degrees apart. Based on the foregoing, it can be understood that the diameter of the first target concentric circle can be selected as any value between 4.953-5.207 mm, and the pins of the two types of round tube shell devices can be inserted through slight deformation. At the same time, the diameter of the limiting hole is preferably 0.483 mm or a value slightly larger than 0.483 mm (for example, 0.49 mm) to avoid the situation where the tube legs cannot be inserted. Similarly, in a group of tube leg limiting holes corresponding to the TO-18 type round tube shell device and the TO-46 type round tube shell device, the number of tube leg limiting holes is 4, which are evenly arranged on the second target center circle on the upper surface of the lower electrode, and the interval between each tube leg limiting hole is 90 degrees. Based on the foregoing, it can be understood that the diameter of the second target concentric circle is preferably 2.54 mm, and the pins of the two types of round tube shell devices can be directly inserted. At the same time, the diameter of the limiting hole is preferably 0.483 mm or a value slightly larger than 0.483 mm (for example, 0.49 mm) to avoid the situation where the tube legs cannot be inserted.

[0059] It is worth noting that the above four types of round tube shell devices are only examples of the round tube shell devices to be sealed included in the set of round tube shell devices to be sealed. In actual application, the set of round tube shell devices to be sealed may include more other types of round tube shell devices to be sealed (such as TO52, TO72, etc.). In order to meet different process requirements, the embodiment of the present application can add more groups of tube leg limiting holes on the lower electrode to adapt to more types of round tube shell devices. The setting method of the newly added tube leg limiting holes can refer to the above example, and the matching setting is carried out according to the number of tube legs, tube leg layout method, tube leg diameter and tube leg circumference diameter of the round tube shell device to be sealed. The embodiment of the present application will not repeat its specific setting method here. It should also be noted that the number of each group of tube leg limiting holes 2202 is at least four, and the aperture of each tube leg limiting hole is the same. Based on this, a group of tube leg limiting holes can at least simultaneously adapt to the two-pin, three-pin and four-pin versions of the circular tube shell device to be capped, thereby minimizing the number of tube leg limiting hole groups while improving the adaptability of the lower electrode, thereby reducing the workload of opening the limiting holes.

[0060] In summary, the embodiment of the present application can improve the adaptability of the energy storage welding electrode by setting multiple groups of tube leg limiting holes on the lower electrode, while ensuring that the round tube shell device to be capped is stably fixed, thereby improving the yield.

[0061] Specifically, Figure 2 A detailed structural diagram of the lower electrode assembly provided in this application, Figure 3 A top view of the lower electrode provided in this application, Figure 4 for Figure 3 Sectional view along the cutting line AA. Figure 1-3 It can be seen that a circular soldering hole 2201 is provided at one end of the lower electrode 220 away from the unloading platform 210, and a plurality of groups of tube leg limiting holes 2202 are sequentially provided on the periphery of the soldering hole 2201. The aperture of the soldering hole 2201 is smaller than the circumferential diameter of the tube legs of the smallest target device in the set of circular tube shell devices to be capped; each group of tube leg limiting holes 2202 is respectively located on a different center circle on the upper surface of the lower electrode. It is worth noting that the soldering hole 2201 is provided to reduce the contact area between the tube shell and the lower electrode, because the larger the contact area, the smaller the contact resistance, and correspondingly, the smaller the resistance heat, which may cause desoldering. Therefore, by providing the soldering hole 2201, desoldering can be avoided and the quality of the capping can be ensured. Combined with Figure 4It can be seen that a circular electrode fixing hole 2203 is provided at one end of the lower electrode 220 close to the unloading platform 210, and correspondingly, a cylindrical protrusion matching the electrode fixing hole 2203 is provided at one end of the unloading platform 210 close to the lower electrode; the depth of the electrode fixing hole 2203 is the same as the height of the cylindrical protrusion. Based on this, the stability of the lower electrode can be guaranteed, and the instability of the lower electrode during the sealing process can be avoided to affect the sealing quality. Based on this, it can be understood that the tube leg limiting hole can be connected to the electrode fixing hole in the depth direction, and the depth of the tube leg limiting hole can also be set according to the length of the tube pin of the circular tube shell device to be sealed. The embodiment of the present application does not make specific limitations on this.

[0062] based on Figure 1-2 It can also be known that the downloading platform 210 further includes a lower base 2101, and the lower base 2101 is fixedly arranged on the lower surface of the energy storage type sealing machine through threaded holes;

[0063] An electrode seat 2102 is disposed above the lower base 2101, and the cylindrical protrusion is disposed on the upper surface of the electrode seat 2102;

[0064] The outer periphery of the cylindrical protrusion is also provided with a circular electric limiter 2103, and the lower electrode 220 is arranged in the electric limiter 2103 and engages with the cylindrical protrusion. Based on this, the stability of the lower electrode can be further ensured, and the sealing quality can be ensured. Figure 1-2 It can also be understood that the upper electrode 120 has the same size as the lower electrode 220, and the upper loading platform 110 has the same structure as the unloading platform 120. Based on this, the manufacturing difficulty of the energy storage welding electrode assembly can be reduced and the production efficiency of the energy storage welding electrode assembly can be improved.

[0065] On the basis of the above, considering that the existing capping process requires manual adjustment of the upper electrode after each welding process to avoid the upper electrode position disturbance caused by the previous welding process, this process will seriously affect the efficiency of the capping process and cannot guarantee the accuracy of the upper electrode position. Therefore, the embodiment of the present application further improves the upper electrode assembly 100. Specifically, Figure 5 A detailed structural diagram of the upper electrode clamping unit provided in this application, combined with Figure 1 and Figure 5 It can be seen that the upper electrode assembly 100 further includes an upper electrode clamping unit 130;

[0066] The upper electrode clamping unit 130 includes a ring-shaped structural mold frame 1301, a rod-shaped structure 1302, a cylinder 1303 and an electrode clamp 1304;

[0067] The annular structure mold frame 1301 is fixed on the upper base 1101 of the upper carrier 110 by bolts, the rod-shaped structure 1302 is fixedly connected to the cylinder 1303 and the annular structure mold frame 1301, and the electrode clamp 1304 is transmission-connected to the cylinder 1303 for clamping the upper electrode 120 under the action of the cylinder 1303.

[0068] based on Figure 1 and Figure 5 It can be seen that the rod-shaped structure 1302, the cylinder 1303 and the electrode fixture 1304 are all symmetrically arranged. Specifically, the rod-shaped structure 1302 includes two rod-shaped substructures located at the end points of the diameter of the annular structural mold frame, each rod-shaped substructure is connected to a cylinder 1303, and each cylinder 1303 is connected to an electrode fixture 1304. Based on this, after the upper electrode is installed, the cylinder 1303 can be controlled to drive the electrode fixture 1304 to fix and clamp the upper electrode, so as to avoid the displacement of the upper electrode position during the capping process. Figure 1 and Figure 5 It can be further known that the electrode fixture 1304 includes an arc-shaped clamping portion, and the curvature of the arc-shaped clamping portion matches the upper electrode 120. Based on this, the clamping stability of the electrode fixture 1304 can be ensured, and the yield rate can be further improved.

[0069] The energy storage welding electrode assembly provided in the embodiment of the present application includes: an upper electrode assembly 100 and a lower electrode assembly 200; the upper electrode assembly 100 includes an upper loading platform 110 and a cylindrical upper electrode 120 embedded in the upper loading platform; the lower electrode assembly 200 includes a lower loading platform 210 and a cylindrical lower electrode 220 embedded in the lower loading platform; a circular soldering hole 2201 is provided at one end of the lower electrode 220 away from the lower loading platform 210, and a plurality of groups of tube leg limiting holes 2202 are sequentially provided on the periphery of the soldering hole 2201, and the aperture of the soldering hole 2201 is less than The tube leg circumference diameter of the smallest target device in the set of circular tube shell devices to be capped; the tube leg circumference diameter refers to the diameter of the circle on which the tube leg is located; each group of tube leg limiting holes 2202 is respectively located on different center circles on the upper surface of the lower electrode; the lower electrode 220 is used to fix the circular tube shell device to be capped, and the upper electrode 120 is used to press the tube cap and tube shell of the circular tube shell device to be capped, and capping is performed through high-frequency pulse discharge, which can improve the adaptability of energy storage welding electrodes, reduce equipment costs, and avoid the problem of low capping efficiency caused by frequent replacement of the lower electrode, and at the same time, it can also improve the yield rate.

[0070] The present application also provides a control method for an energy storage welding electrode assembly, which is applied to the energy storage welding electrode assembly provided in the above embodiment. Figure 6 A flow chart of a control method for an energy storage welding electrode assembly provided in the present application, such as Figure 6As shown, the control method includes:

[0071] Step S1, controlling the upper electrode clamping unit to fix the upper electrode;

[0072] Step S2, determining the corresponding target tube leg limiting holes based on the TO model and tube leg layout of the current round tube shell component to be capped, and inserting the tube legs of the round tube shell component to be capped into the target tube leg limiting holes;

[0073] Step S3, starting the sealing welding process of the current round tube shell device to be sealed, and taking out the current round tube shell device to be sealed after the welding is completed;

[0074] Step S4, judging whether the process of the current batch of round tube shell devices to be sealed has been completed, if so, executing step S5, if not, jumping to executing step S2;

[0075] Step S5, outputting process completion indication information.

[0076] It is understandable that after the upper electrode and the lower electrode are manually installed by the operator, the embodiment of the present application can realize automatic control of the energy storage welding electrode assembly to perform a continuous capping process. The circular tube shell device to be capped can be inserted into the tube leg limiting hole manually or automatically according to the actual configuration of the energy storage welding machine and removed from the tube leg limiting hole after the capping process is completed. Specifically, after the upper electrode and the lower electrode are installed, the embodiment of the present application first controls the upper electrode clamping unit to fix the upper electrode, and then determines the corresponding target tube leg limiting hole based on the TO model and tube leg layout of the current circular tube shell device to be capped, and inserts the tube legs of the circular tube shell device to be capped into the target tube leg limiting hole (the insertion action can be completed manually or automatically by a manipulator or other equipment). Figure 7 The schematic diagram of the process of determining the target pipe leg limiting hole provided in this application is as follows: Figure 7 As shown, the method of determining the corresponding target tube leg limiting hole based on the TO model and tube leg layout of the current round tube shell device to be sealed specifically includes:

[0077] Step S201, determining the circumferential diameter of the tube legs of the current round tube shell component to be sealed based on the TO model of the current round tube shell component to be sealed;

[0078] Step S202, determining a target tube leg limiting hole group based on the tube leg circumference diameter of the current round tube shell component to be capped;

[0079] Step S203, determining a target leg limiting hole in a target leg limiting hole group based on the leg layout of the round tube shell component to be capped.

[0080] Based on the foregoing, it can be known that the diameter of the concentric circle where each tube leg limiting hole group is located matches the tube leg circumferential diameter of the circular tube shell device to be capped, and the TO model of the circular tube shell device to be capped determines the tube leg circumferential diameter of the circular tube shell device to be capped. Therefore, the embodiment of the present application first determines the tube leg circumferential diameter of the current circular tube shell device to be capped based on the TO model of the current circular tube shell device to be capped, and based on the tube leg circumferential diameter of the current circular tube shell device to be capped, the target tube leg limiting hole group can be determined. After determining the target tube leg limiting hole group, the target tube leg limiting hole in the target tube leg limiting hole group can be determined based on the tube leg layout mode of the current circular tube shell device to be capped (including the number of tube legs, tube leg positions and tube leg spacing angles).

[0081] After the tube legs of the circular tube shell device to be capped are inserted into the target tube leg limiting holes, the sealing and welding process of the current circular tube shell device to be capped is started, and the current circular tube shell device to be capped is taken out after the welding is completed. After taking out the current circular tube shell device to be capped, it is necessary to determine whether the current batch of circular tube shell devices to be capped has completed the process. It can be understood that a batch of circular tube shell devices to be capped is usually multiple, and may include devices of different TO models. Therefore, in order to avoid confusion between devices from different batches, production progress tracking is required. Based on this, the embodiment of the present application can determine whether the current batch of circular tube shell devices to be capped has completed the process through production progress tracking information. If so, the process completion indication information is output. If not, the process of the subsequent circular tube shell devices to be capped is continued (i.e., jump to step S2). In this way, a continuous capping process can be achieved. It can be seen that the control method of the energy storage welding electrode assembly of the embodiment of the present application can realize a continuous capping process without adjusting the position of the upper electrode or frequently replacing the lower electrode. At the same time, since the energy storage welding electrode assembly can stably fix the circular tube shell device to be capped, the yield is improved.

[0082] The method provided in the embodiment of the present application includes: step S1, controlling the upper electrode clamping unit to fix the upper electrode; step S2, determining the corresponding target tube leg limiting hole based on the TO model and tube leg layout of the current round tube shell device to be capped, and inserting the tube legs of the round tube shell device to be capped into the target tube leg limiting hole; step S3, starting the sealing welding process of the current round tube shell device to be capped, and taking out the current round tube shell device to be capped after the welding is completed; step S4, judging whether the current batch of round tube shell devices to be capped has completed the process, if so, executing step S5, if not, jumping to execute step S2; step S5, outputting the process completion indication information, which can avoid the problem of low sealing efficiency caused by upper electrode position adjustment and frequent replacement of the lower electrode, and at the same time, can also improve the yield rate.

[0083] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiment scheme of the present application. Those of ordinary skill in the art may understand and implement it without creative labor.

[0084] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage welding electrode assembly, characterized in that: The energy storage welding electrode assembly comprises: An upper electrode assembly (100) and a lower electrode assembly (200); The upper electrode assembly (100) comprises an upper loading platform (110) and a cylindrical upper electrode (120) embedded in the upper loading platform; the lower electrode assembly (200) comprises a lower loading platform (210) and a cylindrical lower electrode (220) embedded in the lower loading platform; A circular soldering hole (2201) is provided at one end of the lower electrode (220) away from the lower platform (210); a plurality of groups of tube leg limiting holes (2202) are sequentially provided around the periphery of the soldering hole (2201); the aperture of the soldering hole (2201) is smaller than the tube leg circumference diameter of the smallest target device in the set of circular tube shell devices to be capped; the tube leg circumference diameter refers to the diameter of the circle where the tube leg is located; and each group of tube leg limiting holes (2202) is respectively located on different center circles on the upper surface of the lower electrode; The lower electrode (220) is used to fix the round tube shell device to be capped, and the upper electrode (120) is used to press the tube cap and tube shell of the round tube shell device to be capped, and capping is performed through high-frequency pulse discharge; The number of each group of tube leg limiting holes (2202) is at least four, and the apertures of each tube leg limiting hole are the same.

2. The energy storage welding electrode assembly according to claim 1, characterized in that: A circular electrode fixing hole (2203) is provided at one end of the lower electrode (220) close to the unloading platform (210), and correspondingly, a cylindrical protrusion matching the electrode fixing hole (2203) is provided at one end of the unloading platform (210) close to the lower electrode; the depth of the electrode fixing hole (2203) is the same as the height of the cylindrical protrusion.

3. The energy storage welding electrode assembly according to claim 2, characterized in that: The unloading platform (210) further comprises a lower base (2101), and the lower base (2101) is fixedly arranged on the lower surface of the energy storage type sealing and welding machine through threaded holes; An electrode seat (2102) is arranged above the lower base (2101), and the cylindrical protrusion is arranged on the upper surface of the electrode seat (2102); A circular electric limiter (2103) is also provided on the periphery of the cylindrical protrusion, and the lower electrode (220) is arranged in the electric limiter (2103) and is engaged with the cylindrical protrusion.

4. The energy storage welding electrode assembly according to claim 3, characterized in that: The upper electrode (120) and the lower electrode (220) have the same size, and the upper loading platform (110) and the unloading platform (120) have the same structure.

5. The energy storage welding electrode assembly according to claim 4, characterized in that: The upper electrode assembly (100) further comprises an upper electrode clamping unit (130); The upper electrode clamping unit (130) comprises an annular structural mold frame (1301), a rod-shaped structure (1302), a cylinder (1303) and an electrode clamp (1304); The annular structural mold frame (1301) is fixedly arranged on the upper base (1101) of the upper carrier (110) by means of bolts, the rod-shaped structure (1302) is fixedly connected to the cylinder (1303) and the annular structural mold frame (1301), and the electrode clamp (1304) is transmission-connected to the cylinder (1303) for clamping the upper electrode (120) under the action of the cylinder (1303).

6. The energy storage welding electrode assembly according to claim 5, characterized in that: The rod-shaped structure (1302) includes two rod-shaped substructures located at the end points of the diameter of the annular structural mold frame, each rod-shaped substructure is connected to a cylinder (1303), and each cylinder (1303) is connected to an electrode fixture (1304).

7. The energy storage welding electrode assembly according to claim 6, characterized in that: The electrode clamp (1304) comprises an arc-shaped clamping portion, the arc of which matches the upper electrode (120).

8. A control method for an energy storage welding electrode assembly, characterized in that: The control method is applied to the energy storage welding electrode assembly according to claim 7, and the control method comprises: Step S1, controlling the upper electrode clamping unit to fix the upper electrode; Step S2, determining the corresponding target tube leg limiting holes based on the TO model and tube leg layout of the current round tube shell component to be capped, and inserting the tube legs of the round tube shell component to be capped into the target tube leg limiting holes; Step S3, starting the sealing welding process of the current round tube shell device to be sealed, and taking out the current round tube shell device to be sealed after the welding is completed; Step S4, judging whether the process of the current batch of round tube shell devices to be sealed has been completed, if so, executing step S5, if not, jumping to executing step S2; Step S5, outputting process completion indication information.

9. The control method of the energy storage welding electrode assembly according to claim 8, characterized in that: The determining of the corresponding target tube leg limiting hole based on the TO model and tube leg layout of the current round tube shell device to be sealed specifically includes: Based on the TO model of the current round tube shell component to be sealed, determine the circumferential diameter of the tube legs of the current round tube shell component to be sealed; Determine the target tube leg limiting hole group based on the tube leg circumference diameter of the current round tube shell component to be sealed; Based on the tube leg layout mode of the current round tube shell device to be sealed, the target tube leg limiting holes in the target tube leg limiting hole group are determined.

Images