Positioning device and laser welding equipment

Abstract

The utility model relates to the technical field of positioning and welding. The utility model provides a positioning device. The positioning device comprises a positioning device, the positioning jig is provided with a plurality of groove sets arranged in the length direction of the positioning jig, each groove set comprises various grooves distributed in the length direction of the positioning jig, and the grooves of different types are used for positioning the first elements of different models; a plurality of through grooves are formed in the cover plate jigs at intervals, and the through grooves in the cover plate jigs of different types are used for allowing the first elements of different models to pass through; wherein the cover plate jig is selectively and detachably installed on the positioning jig, and when the cover plate jig is installed on the positioning jig, the through grooves and the grooves, corresponding to the first elements of the same model, in the cover plate jig and the positioning jig are aligned and communicated one by one in position; and the cover plate jig shields and positions other types of grooves of other models on the positioning jig. According to the positioning device and the laser welding equipment, the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical fields of positioning and welding, and particularly to a positioning device and a laser welding device. Background Art

[0002] In the process of welding to form a product, it is usually necessary to first use a positioning device to position a first component and a plurality of types of second components that make up the product. The traditional method of using a positioning device to position a plurality of types of first components in a plurality of products is to sequentially position each of the plurality of types of first components in each product one by one onto the positioning device, and then synchronously position a plurality of second components forming a plurality of products onto the positioning device, and finally laser-weld the second components and the corresponding plurality of types of first components. This operation method is troublesome and complex, resulting in low production efficiency of the product. Summary of the Utility Model

[0003] Based on this, in view of the above problems, it is necessary to provide a positioning device and a laser welding device that can improve production efficiency.

[0004] A positioning device, the positioning device includes;

[0005] A positioning jig having a plurality of groups of grooves arranged along its length direction, each group of the grooves including a plurality of grooves arranged along the length direction of the positioning jig, and different types of the grooves being used to position different models of first components; and

[0006] A plurality of cover jigs having a plurality of through slots arranged at intervals thereon, and the through slots on different types of the cover jigs being used to pass different models of first components;

[0007] Wherein, the cover jig is selectively and detachably installed on the positioning jig. When the cover jig is installed on the positioning jig, the through slots and the grooves corresponding to the same model of the first component in both the cover jig and the positioning jig are aligned and communicated with each other, and the cover jig blocks the other types of grooves on the positioning jig for positioning other models.

[0008] In some embodiments, the dimension of the through slot in the length direction of the positioning jig is W2, the maximum diameter of the first component passing through the through slot is D, and D < W2 < 1.5D.

[0009] In some embodiments, the depth of the through slot is H1, and the depth of the groove aligned and communicated with the through slot is H2, and H1 < 0.5D, H2 < 0.5D.

[0010] In some of these embodiments, either a convex portion or a concave portion is formed on the surface of the positioning fixture where the groove is formed, and the other of the convex portion and the concave portion is formed on the cover fixture. The convex portion and the concave portion are detachably connected by a snap - fit manner of convex - concave cooperation.

[0011] In some of these embodiments, convex portions protrude from both ends of the positioning fixture along its length direction, and all the groove groups are located between the convex portions at both ends of the positioning fixture; concave portions are formed by recessing both ends of the cover fixture along its length direction, and the concave portions are in one - to - one correspondence and cooperation with the convex portions, and all the through - slots are located between the concave portions at both ends of the cover fixture.

[0012] In some of these embodiments, a magnetic attraction assembly is further included. The magnetic attraction assembly is disposed on the positioning fixture and is used for attracting and positioning the first elements in all the grooves.

[0013] In some of these embodiments, the magnetic attraction assembly includes a plurality of magnetic attraction members. All the magnetic attraction members are arranged in rows and columns along the length direction and the width direction of the positioning fixture, and each groove has at least one corresponding magnetic attraction member.

[0014] In some of these embodiments, the magnetic attraction assembly is disposed on the bottom side of the positioning fixture facing away from the groove.

[0015] In some of these embodiments, the dimension of the groove in the width direction of the positioning fixture is L1, the dimension of the through - slot that aligns with and communicates with the groove in the width direction of the cover fixture is L2, and the length of the first element passing through the through - slot is L, where L1 < L < L2;

[0016] The groove extends along the width direction of the positioning fixture, and an opening corresponding to and communicating with the groove is formed on one end surface of the positioning fixture along its width direction. When the cover fixture is installed on the positioning fixture, the orthographic projection of the through - slot on the cover fixture on the plane where the surface of the positioning fixture with the groove is located partially extends outside the end surface where the opening of the positioning fixture is formed.

[0017] A laser welding device, comprising:

[0018] The positioning device according to any one of the above - mentioned embodiments; and

[0019] A laser welding device, which is used for welding a second element installed on the positioning fixture and a first element in the corresponding groove group of the second element.

[0020] The above-mentioned positioning device and laser welding equipment, by setting up a variety of cover jigs, can use different types of cover jigs to assemble pin wires of different models, and when each cover jig is installed on the positioning jig, only the pin wire corresponding to the model of the cover jig can be assembled, and the pin wire of the corresponding model can be spread out and assembled into the corresponding groove in the groove group by moving a handful of pin wires, thereby realizing the rapid installation of pin wires of various models, and then the production efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A top view of the positioning fixture and the third cover plate fixture in cooperation with each other according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A top view of the positioning fixture in FIG.

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of a local structure A in the positioning fixture shown;

[0024] Figure 4 for Figure 2 A front view of the positioning fixture shown;

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of a local structure B in the positioning fixture shown;

[0026] Figure 6 A top view of a first cover plate fixture in an embodiment of the present application;

[0027] Figure 7 A top view of a second cover plate fixture in one embodiment of the present application;

[0028] Figure 8 A top view of a third cover plate fixture in one embodiment of the present application;

[0029] Figure 9 A top view of a substrate in one embodiment of the present application;

[0030] Figure 10 A top view of a positioning jig in one embodiment of the present application in which all grooves are equipped with lead wires and the positioning jig and the substrate are positioned and installed;

[0031] Figure 11 for Figure 10 A magnified schematic diagram of the local structure C.

[0032] Figure Number:

[0033] 100, positioning device; 200, heating network group; 300, lead wire; 400, substrate;

[0034] 10. Positioning fixture; 20. Cover plate fixture; 30. Magnetic attraction component;

[0035] 11. Groove group; 12. Groove; 121. First groove; 122. Second groove; 123. Third groove; 124. First part; 125. Second part; 13. Positioning post; 14. Opening;

[0036] 21. First cover plate fixture; 22. Second cover plate fixture; 23. Third cover plate fixture; 24. Through groove; 25. Positioning hole;

[0037] 31. Magnetic attraction piece;

[0038] 210. Heating mesh;

[0039] 310. First lead wire; 320. Second lead wire; 330. Third lead wire; 340. First section; 350. Second section 350;

[0040] X. Length direction of the positioning fixture; Y. Width direction of the positioning fixture; Z. Thickness direction of the positioning fixture. Detailed implementation manners

[0041] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0047] Please refer to Figure 1 、 Figures 9 to 11 This application provides a positioning device 100. The positioning device 100 is used to position a second element and a variety of models of first elements corresponding to the second element. As an example, the first element is a pin wire 300, and the second element is a heating mesh group 200. The heating mesh group 200 is connected to a variety of models of pin wires 300 to form a multi-mesh heating element. As an example, the multi-mesh heating element is applied to an atomizing device and can be used to heat an aerosol-forming substrate to generate an aerosol.

[0048] Of course, the first element and the second element can also be of other structures, and the connection between the second element and the first elements of multiple models corresponding to the second element is not limited to forming a multi-network heating element, and can be specifically set according to requirements.

[0049] For the convenience of description, in the following embodiments, the first element is the pin wire 300 and the second element is the heating network group 200 as examples for illustration.

[0050] Among them, according to the different numbers of heating networks 210 in the heating network group 200, the number of models of the pin wires 300 corresponding to the same heating network group 200 is also different. Generally speaking, the number of models of the pin wires 300 corresponding to the heating network group 200 is the number of heating networks 210 in the heating network group 200 plus 1. For example, taking the heating network group 200 including 2 heating networks 210 as an example, the number of models of the pin wires 300 corresponding to the heating network group 200 is 3. That is to say, the heating network group 200 with 2 heating networks 210 needs to weld 3 types of pin wires 300. Taking the heating network group 200 including 3 heating networks 210 as an example, the number of models of the pin wires 300 corresponding to the heating network group 200 is 4. That is to say, the heating network group 200 with 3 heating networks 210 needs to weld 4 types of pin wires 300.

[0051] For the convenience of description, in the following embodiments, the heating network group 200 includes 2 heating networks 210, and the number of models of the pin wires 300 corresponding to the heating network group 200 is 3 as examples for illustration.

[0052] Please refer to Figures 1 to 11 , in which the positioning device 100 includes a positioning fixture 10 and a variety of cover fixtures 20. The positioning fixture 10 is provided with multiple groups of groove groups 11 along its length direction. Each group of groove groups 11 includes a variety of grooves 12 arranged along the width direction X of the positioning fixture 10. Different types of grooves 12 are used to position different models of the first element. A plurality of through grooves 24 are arranged at intervals on each cover fixture 20. The through grooves 24 on different types of cover fixtures 20 are used to pass different models of the first element. Among them, the cover fixture 20 can be selectively and detachably installed on the positioning fixture 10. When the cover fixture 20 is installed on the positioning fixture 10, the positions of the through grooves 24 and the grooves 12 corresponding to the same model of the first element in both the cover fixture 20 and the positioning fixture 10 are aligned and communicated one by one, and the cover fixture 20 blocks the other types of grooves 12 on the positioning fixture 10 for positioning other models.

[0053] The type of the groove 12 is determined by the model of the pin wire 300 it locates, and the model of the pin wire 300 is determined by its welding position in the heating mesh group 200. Specifically, when welding with the same heating mesh group 200, the models of the pin wires 300 with different welding positions are different, and the types of the grooves 12 that locate the pin wires 300 of different models are also different.

[0054] Multiple groups of groove groups 11 correspond one-to-one with multiple heating mesh groups 200. For example, Figure 1 taking the case where there are 9 groove groups 11, the 9 groove groups 11 correspond one-to-one with 9 heating mesh groups 200.

[0055] The lengths of the pin wires 300 of different models may be the same or different, and the diameters of the pin wires 300 of different models may be the same or different. Correspondingly, the lengths of the grooves 12 of different types may be the same or different, and the widths of the grooves 12 of different types may be the same or different. When the pin wire 300 is positioned in the corresponding groove 12, the length direction of the pin wire 300 is the same as the length direction of the groove 12, and this direction is also the width direction Y of the positioning jig 10. The radial direction of the pin wire 300 is the same as the width direction of the groove 12, and this direction is also the width direction X of the positioning jig 10. Taking the state of the positioning device 100 in Figure 1 as an example, the width direction X of the positioning jig 10 is the left-right direction, and the width direction Y of the positioning jig 10 is the up-down direction.

[0056] As an example, the number of models of the first workpiece is the same as the number of types of the cover plate jig 20. For example, if the first workpiece has 3 models, then the cover plate jig 20 also has 3 categories.

[0057] As an example, the cover plate jig 20 is detachably installed on the positioning jig 10 through ways such as concave-convex fitting and snap-fitting. When the cover plate jig 20 is installed on the positioning jig 10, the through slots 24 and the grooves 12 corresponding to the pin wires 300 of the same model in both the cover plate jig 20 and the positioning jig 10 are aligned and communicated. Therefore, the pin wire 300 corresponding to the model of the through slot 24 on the cover plate jig 20 can fall through the through slot 24 on the cover plate jig 20 into the groove 12 aligned with the through slot 24 to achieve the positioning of the pin wire 300. Since the cover plate jig 20 blocks the other types of grooves 12 on the positioning jig 10 for positioning other models, the pin wire 300 that does not correspond to the model of the cover plate jig 20 installed on the positioning jig 10 cannot fall through the through slot 24 into the groove 12 of the positioning jig 10. That is to say, each time a cover plate jig 20 is installed, it can only be used to complete the installation of the pin wire 300 corresponding to the model of the through slot 24 of the cover plate jig 20.

[0058] For the convenience of description, in the following embodiments, the heating wire group 200 has 2 heating wires 210, there are 3 types of cover plate fixtures 20 and grooves 12 respectively, the pin wires 300 have 3 models, the groove groups 11 on the positioning fixture 10 are 9 groups, and the through slots 24 on the cover plate fixture 20 are 9. This will be described by taking these as examples.

[0059] Define the first type of cover plate fixture 20 as the first cover plate fixture 21, the second type of cover plate fixture 20 as the second cover plate fixture 22, the third type of cover plate fixture 20 as the third cover plate fixture 23, the pin wire 300 of the first model as the first pin wire 310, the pin wire 300 of the second model as the second pin wire 320, the pin wire 300 of the third model as the third pin wire 330, the first type of groove 12 as the first groove 121, the second type of groove 12 as the second groove 122, and the third type of groove 12 as the third groove 123.

[0060] During actual operation, the first cover plate fixture 21 is installed on the positioning fixture 10, and the 9 through slots 24 on the first type of cover plate fixture 20 are aligned and communicated with the 9 first grooves 121 in the 9 groove groups 11 on the positioning fixture 10 one by one. Then, randomly grab a handful of first pin wires 310 (the number is at least 9) and place them on the first cover plate fixture 21, and then move the whole handful of first pin wires 310 along the width direction X of the positioning fixture 10, so that the first pin wires 310 are spread out and the first pin wires 310 pass through the 9 through slots 24 in sequence and orderly and respectively fall into the first grooves 121 of the 9 groove groups 11. After that, disassemble the first cover plate fixture 21, and take out the redundant first pin wires 310 on the first cover plate fixture 21 and in the first grooves 121 to ensure that there is only 1 first pin wire 310 in each first groove 121. It is worth mentioning that since the second grooves 122 and the third grooves 123 in each groove group 11 are covered by the first cover plate fixture 21, therefore, no first pin wires 310 will fall into the second grooves 122 and the third grooves 123. Then, install the second cover plate fixture 22 and the third cover plate fixture 23 in sequence, and install the second pin wires 320 in the second grooves 122 of each groove group 11 and the third pin wires 330 in the third grooves 123 of each groove group 11 in sequence. The installation methods of the second pin wires 320 and the third pin wires 330 are the same as that of the first pin wires 310, so they will not be elaborated here. It is worth mentioning that the installation order of the first pin wires 310, the second pin wires 320 and the third pin wires 330 is not limited to the above one, and the installation order of the first pin wires 310, the second pin wires 320 and the third pin wires 330 can be interchanged. Moreover, when installing the second pin wires 320, the installation of the first pin wires 310 and the third pin wires 330 cannot be completed, and when installing the third pin wires 330, the installation of the first pin wires 310 and the second pin wires 320 cannot be completed.

[0061] After the installation of the first pin line 310, the second pin line 320 and the third pin line 330 in all the groove groups 11 is completed, the substrate 400 with 9 heating mesh groups 200 attached is positioned on the positioning fixture 10, and then each heating mesh group 200 and the first pin line 310, the second pin line 320 and the third pin line 330 in the groove group 11 corresponding to the heating mesh group 200 are welded together in turn to assemble into 9 multi-mesh heating components.

[0062] It can be seen from this that by setting up a variety of cover jigs 20, different types of cover jigs 20 can be used to assemble different models of pin wires 300, and when each cover jig 20 is installed on the positioning jig 10, only the pin wire 300 corresponding to the model of the cover jig 20 can be assembled, and the corresponding model of the pin wire 300 can be spread out and assembled into the corresponding groove 12 in the groove group 11 by moving a handful of pin wires 300, thereby realizing the rapid installation of multiple models of pin wires 300, and the production efficiency is also improved accordingly.

[0063] See also Figure 6 and Figure 11 In some optional embodiments, the dimension of the through slot 24 in the width direction X of the positioning fixture 10 is W2, and the maximum diameter of the first element through which the through slot 24 passes is D; D<W2<1.5D.

[0064] The dimension of the through slot 24 in the width direction X of the positioning fixture 10 is the width of the through slot 24 , that is, the width of the through slot 24 is W2 .

[0065] In order to distinguish different types of pin wires 300, the insulation skins of different types of pin wires 300 are presented in different colors. The pin wire 300 includes a first section 340 and a second section 350. The first section 340 is welded to the heating network group 200, and the second section 350 is arranged away from the heating network group 200. To ensure the welding effect, the insulation skin of the first section 340 needs to be peeled off, resulting in the diameter of the first section 340 being smaller than the diameter of the second section 350. The maximum diameter of the first element is the diameter of the second section 350.

[0066] D<W2<1.5D, then in the process of moving and spreading out a handful of pin wires 300 of the same model and installing the pin wires 300 of the same model, each through groove 24 can only pass one pin wire 300 in its width direction, thereby ensuring that the number of pin wires 300 that fall into the groove 12 is also one, ensuring the accuracy of the installation of the pin wires 300.

[0067] Combination Figure 1 , Figure 3 , Figure 6 and Figure 11, It is worth mentioning that in this embodiment, the maximum dimension of the groove 12 in the width direction X of the positioning fixture 10 is W1, and it is sufficient that W1 > D.

[0068] To improve the positioning effect, the shape of the corresponding groove 12 is adapted to the shape of the lead wire 300. The groove 12 includes a first part 124 and a second part 125 that are interconnected. The first part 124 is used to position the first section 340 of the lead wire 300, and the second part 125 is used to position the second section 350 of the lead wire 300. Therefore, the dimension of the first part 124 in the width direction X of the positioning fixture 10 is smaller than the dimension of the second part 125 in the width direction X of the positioning fixture 10, and the maximum dimension of the groove 12 in the width direction X of the positioning fixture 10 is the dimension of the second part 125 in the width direction X of the positioning fixture 10.

[0069] If W1 < W2, the orthographic projection of the through slot 24 in the plane of the surface of the positioning fixture 10 where the groove 12 is formed is arranged around the periphery of the groove 12 aligned with the through slot 24. If W1 > W2, the orthographic projection of the through slot 24 in the plane of the surface of the positioning fixture 10 where the groove 12 is formed partially overlaps with the groove 12 aligned with the through slot 24 to ensure that the lead wire 300 can fall through the through slot 24 into the groove 12 aligned with the through slot 24.

[0070] Please refer to Figure 5 , Figure 6 and Figure 11 , Further, in some alternative embodiments, the depth of the through slot 24 is H1, and the depth of the through slot 24 is also the thickness of the cover plate fixture 20. The depth of the groove 12 aligned and connected with the through slot 24 is H2, H1 < 0.5D, and H2 < 0.5D.

[0071] When the cover plate fixture 20 is attached to the positioning fixture 10, the sum of the depth of the through slot 24 and the depth of the groove 12 that are aligned and connected is H. Since H1 < 0.5D and H2 < 0.5D, then H = H1 + H2, and H < D. Therefore, when the lead wire 300 falls from the through slot 24 into the groove 12 that is aligned and connected with the through slot 24, part of the lead wire 300 is located in the groove 12, part is located in the through slot 24, and the remaining part protrudes outside the through slot 24. In this way, during the installation process of the lead wires 300 of the same model, only one lead wire 300 can pass through each through slot 24 in its depth direction, thereby ensuring that only one lead wire 300 falls into the groove 12 and ensuring the accuracy of the installation of the lead wire 300.

[0072] In such an embodiment, even when assembling the pin wires 300 of the same model, the number of pin wires 300 placed on the cover plate jig 20 is greater than the number of grooves 12 corresponding to the pin wires 300. After the assembly of the pin wires 300 of this model is completed, the excess pin wires 300 will remain on the cover plate jig 20 and are convenient to remove.

[0073] It can be understood that the depth direction of the through slot 24 coincides with the thickness direction of the cover plate jig 20 and the thickness direction Z of the positioning jig 10.

[0074] Next, two specific embodiments will be used to illustrate the effects brought about by different relationships between the diameter of the pin wire 300 and the channel width.

[0075] In the first embodiment, taking the diameter D of the pin wire 300 as 0.6 mm, the length of the first pin wire 310 as a, the length of the second pin wire 320 as b, and the length of the third pin wire 330 as c, where a and c are both 30 mm and b is 20 mm as an example, the lengths of the through slots 24 on the first cover plate jig 21 and the third cover plate jig 23 are both 35 mm, and the length of the through slot 24 on the second cover plate jig 22 is greater than 20 mm.

[0076]

[0077] In the second embodiment, taking the diameter D of the pin wire 300 as 0.3 mm, a and c both being 30 mm, and b being 20 mm as an example, the lengths of the through slots 24 on the first cover plate jig 21 and the third cover plate jig 23 are both 35 mm, and the length of the through slot 24 on the second cover plate jig 22 is greater than 20 mm.

[0078]

[0079]

[0080] As can be seen from the above-mentioned first embodiment and the second embodiment, when W2 < 1.5D and / or H1 < 0.5D, there is only one pin wire 300 in each groove 12. When W2 = 1.5D or W2 > 1.5D, and / or, H1 = 0.5D or H1 > 0.5D, there will be two or more pin wires 300 in some of the grooves 12. Therefore, it is recommended that W2 < 1.5D and / or H1 < 0.5D.

[0081] Please refer to Figures 4 to 9 , in some alternative embodiments, either a convex portion or a concave portion is formed on the surface structure of the positioning jig 10 where the groove 12 is opened, and the other of the convex portion and the concave portion is formed on the cover plate jig 20. The convex portion and the concave portion are detachably connected by a snap-fit connection method of concave-convex cooperation to realize the positioning and installation of the cover plate jig 20. This method is simple to disassemble and assemble and is convenient for quickly replacing the cover plate jig 20.

[0082] Specifically, the convex part can be columnar, rod-shaped or other shapes, and the concave part can be a channel, a groove or other structures.

[0083] In order to position and install the substrate 400 equipped with multiple heating mesh groups 200 before welding, the other of the convex part and the concave part is also formed on the substrate 400. The convex part and the concave part are detachably connected by a snap-fit manner of concave-convex cooperation to realize the positioning and installation of the substrate 400.

[0084] Further, in some alternative embodiments, convex parts are convexly provided at both ends of the positioning jig 10 arranged along its length direction, and all the groove groups 11 are located between the convex parts at both ends of the positioning jig 10; concave parts are recessed at both ends of the cover plate jig 20 arranged along its length direction, and the concave parts are in one-to-one correspondence and cooperation with the convex parts, and all the through grooves 24 are located between the concave parts at both ends of the cover plate jig 20.

[0085] For example, the convex part on the positioning jig 10 is a positioning post 13, and there are two positioning posts 13 which are arranged on both sides of all the groove groups 11 along the width direction X of the positioning jig 10. The concave part on the cover plate jig 20 is a positioning hole 25, and there are two positioning holes 25 which are arranged on the opposite sides of all the through grooves 24 along the length direction of the cover plate jig 20. Similarly, the concave part on the substrate 400 is also two and is the positioning hole 25, and the two positioning holes 25 are arranged on the opposite sides of all the heating mesh groups 200 along the length direction of the substrate 400.

[0086] In this design, the positioning jig 10 can position and install both ends of the cover plate jig 20 to reduce the risk of the cover plate jig 20 moving relative to the positioning jig 10, so that the through grooves 24 on the cover plate jig 20 can be aligned and communicated with the corresponding grooves 12. In addition, the positioning jig 10 in this embodiment can also position and install both ends of the substrate 400 to reduce the risk of the substrate 400 moving relative to the positioning jig 10, ensuring the accuracy of subsequent welding.

[0087] Please refer to Figures 2 to 4 , in some alternative embodiments, the positioning device 100 further includes a magnetic attraction assembly 30. The magnetic attraction assembly 30 is arranged on the positioning jig 10 and is used to adsorb and position the first components in all the grooves 12. The pin wire 300 and the positioning jig 10 are usually made of metal. The magnetic attraction assembly 30 is directly adsorbed on the positioning jig 10 and adsorbs the pin wire 300 when the pin wire 300 falls into the groove 12, so that the pin wire 300 can be stably positioned in the corresponding groove 12, facilitating the subsequent welding of the pin wire 300 and the heating mesh group 200.

[0088] As an example, the magnetic attraction assembly 30 is disposed on the bottom side of the positioning jig 10 facing away from the groove 12. In this way, the installation of the magnetic attraction assembly 30 on the lead wire 300 will not cause interference, and the installed lead wire 300 can be adsorbed, ensuring the reliability of the installation of the lead wire 300.

[0089] In some alternative embodiments, the magnetic attraction assembly 30 includes a plurality of magnetic attraction members 31. All the magnetic attraction members 31 are arranged in rows and columns along the width direction X and the width direction of the positioning jig 10, and each groove 12 has at least one corresponding magnetic attraction member 31.

[0090] Since lead wires 300 of different models may have different lengths, there may be a length difference between different types of grooves 12 within the same groove group 11. By arranging all the magnetic attraction members 31 in rows and columns along the width direction X and the width direction of the positioning jig 10, it can be ensured that almost each groove 12 has at least one corresponding magnetic attraction member 31 to adsorb the lead wire 300 located in each groove 12, so that the lead wire 300 can be reliably positioned within the corresponding groove 12.

[0091] Please refer to Figure 2 、 Figure 6 、 Figures 9 to 11 , in some alternative embodiments, the size of the groove 12 in the width direction Y of the positioning jig 10 is L1, the size of the through groove 24 that aligns with and communicates with the groove 12 in the width direction of the cover plate jig 20 is L2, and the length of the first component passing through the through groove 24 is L, where L1 < L < L2; the groove 12 extends along the width direction Y of the positioning jig 10, and an opening 14 corresponding to and communicating with the groove 12 is formed on one end surface of the positioning jig 10 arranged along its width direction. When the cover plate jig 20 is installed on the positioning jig 10, the orthographic projection of the through groove 24 on the cover plate jig 20 on the plane where the surface of the positioning jig 10 where the groove 12 is formed extends beyond the end surface where the opening 14 is located of the positioning jig 10.

[0092] Therefore, when the lead wire 300 falls into the corresponding groove 12 via the through groove 24, a part of the lead wire 300 extends out of the opening 14 communicating with the groove 12 where it is located. At this time, by pushing the lead wire 300 from the outside to the inside and driving the lead wire 300 to slide inward along the groove 12 where it is located, the position of the lead wire 300 in the width direction Y of the positioning jig 10 can be adjusted, so that the lead wire 300 can be aligned with the corresponding welding position on the heating mesh group 200, and the welding is more accurate.

[0093] The present application also provides a laser welding device, which includes a laser welding device and a positioning device 100 described in any one of the above embodiments, and the laser welding device is used to weld a second element installed on the positioning fixture 10 and a first element corresponding to the second element and positioned in the groove group 11.

[0094] After the pin wires 300 are laid in all the grooves 12 on the positioning jig 10, the substrate 400 is positioned on the positioning jig 10 according to the positioning columns 13 on the positioning jig 10, and the corresponding heating mesh group 200 and the pin wires 300 are attached by the magnetic suction part 31 on the positioning jig 10, and then laser welding equipment is used to perform laser welding to weld the pin wires 300 to the welding positions corresponding to the heating mesh group 200, thereby realizing the molding of multi-mesh heating components.

[0095] The laser welding equipment in the present application has the effects brought by any of the above-mentioned embodiments, so it will not be described in detail here.

[0096] The above-mentioned positioning device 100 and laser welding equipment, by setting up a variety of cover jigs 20, can use different types of cover jigs 20 to assemble different types of pin wires 300, and when each cover jig 20 is installed on the positioning jig 10, only the pin wire 300 corresponding to the model of the cover jig 20 can be assembled, and the corresponding model of the pin wire 300 can be spread out and assembled into the corresponding groove 12 in the groove group 11 by moving a handful of pin wires 300, thereby realizing the rapid installation of various types of pin wires 300, and the production efficiency is also improved accordingly.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A positioning device, characterized in that: The positioning device comprises: A positioning jig (10) having a plurality of groove groups (11) arranged along the length direction (X) thereof, each of the groove groups (11) comprising a plurality of grooves (12) arranged along the length direction (X) of the positioning jig (10), and the grooves (12) of different types are used to position first components of different models; and A plurality of cover plate jigs (20) each having a plurality of through slots (24) arranged at intervals thereon, wherein the through slots (24) on the cover plate jigs (20) of different types are used to pass first components of different models; The cover jig (20) can be selectively and detachably mounted on the positioning jig (10); when the cover jig (20) is mounted on the positioning jig (10), the through slots (24) and the grooves (12) corresponding to the first element of the same type in both the cover jig (20) and the positioning jig (10) are aligned one by one and connected, and the cover jig (20) blocks the grooves (12) of other types on the positioning jig (10) for positioning other types of components.

2. The positioning device according to claim 1, characterized in that: The dimension of the through slot (24) in the length direction (X) of the positioning fixture (10) is W2, the maximum diameter of the first element through which the through slot (24) passes is D, and D<W2<1.5D.

3. The positioning device according to claim 2, characterized in that: The depth of the through groove (24) is H1, and the depth of the groove (12) aligned with and connected to the through groove (24) is H2, H1<0.5D, H2<0.5D.

4. The positioning device according to claim 1, characterized in that: The surface structure of the positioning jig (10) on which the groove (12) is formed is formed with either a convex portion or a concave portion, and the cover jig (20) is formed with the other of the convex portion and the concave portion, and the convex portion and the concave portion are detachably connected by a concave-convex fitting snap-fitting manner.

5. The positioning device according to claim 4, characterized in that: Both ends of the positioning jig (10) arranged along its length direction are provided with convex parts, and all the groove groups (11) are located between the convex parts at both ends of the positioning jig (10); both ends of the cover jig (20) arranged along its length direction are recessed to form concave parts, and the concave parts correspond to the convex parts one by one, and all the through grooves (24) are located between the concave parts at both ends of the cover jig (20).

6. The positioning device according to claim 1, characterized in that: It also includes a magnetic attraction component (30), which is arranged on the positioning fixture (10) and is used to absorb and position the first element in all the grooves (12).

7. The positioning device according to claim 6, characterized in that: The magnetic attraction component (30) comprises a plurality of magnetic attraction components (31), all of the magnetic attraction components (31) are arranged in rows and columns along the length direction (X) and the width direction of the positioning fixture (10), and each of the grooves (12) has at least one magnetic attraction component (31) corresponding thereto.

8. The positioning device according to claim 6 or 7, characterized in that: The magnetic attraction component (30) is arranged on the bottom side of the positioning fixture (10) facing away from the groove (12).

9. The positioning device according to claim 1, characterized in that: The dimension of the groove (12) in the width direction (Y) of the positioning fixture (10) is L1, the dimension of the through groove (24) aligned with and connected to the groove (12) in the width direction of the cover plate fixture (20) is L2, the length of the first element through which the through groove (24) passes is L, and L1<L<L2; The groove (12) extends along the width direction (Y) of the positioning jig (10); an end face of the positioning jig (10) arranged along the width direction (Y) is provided with an opening (14) corresponding to and connected with the groove (12); when the cover jig (20) is installed on the positioning jig (10), the orthographic projection of the through groove (24) on the cover jig (20) on the plane where the surface of the positioning jig (10) where the groove (12) is provided is located, and partially extends out of the end face of the positioning jig (10) where the opening (14) is provided.

10. A laser welding device, characterized in that: include: A positioning device as claimed in any one of claims 1 to 9 above; and A laser welding device is provided, wherein the laser welding device is used to weld a second element mounted on the positioning fixture (10) and a first element in the groove group (11) corresponding to the second element.

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