A positioning device for wave soldering printed board modules

Abstract

The utility model discloses a kind of positioning device of printed board module for wave-soldering, printed board technical field.Positioning device includes bottom plate and positioning assembly;Bottom plate has the hole for avoiding printed board on printed board module on printed board;Positioning assembly includes fixed block, first guide rail, second guide rail, third guide rail and fourth guide rail, fixed block is located on bottom plate, first guide rail and second guide rail are arranged on bottom plate, first guide rail and second guide rail are all provided with the sliding slot extending along first direction, the both ends of third guide rail are slidably inserted into sliding slot respectively, first movable block and second movable block are provided on third guide rail, and third movable block is provided on fourth guide rail.The positioning device of printed board module for wave-soldering provided in the utility model embodiment can not only position and clamp the shell of printed board module assembly with different shapes and sizes, but also improve the consistency and reliability of printed board hand component welding during welding.

Description

TECHNICAL FIELD

[0001] The utility model belongs to printed board technical field, concretely relates to a positioning device for printed board module of wave crest weld. BACKGROUND

[0002] Printed board is also called printed wiring board, is important electronic component, is the support body of electronic component, is the carrier of electronic component electrical mutual connection.

[0003] In the related art, the printed board module includes a printed board and a shell, wherein the printed board is fixed on the shell, and a plurality of components are welded on the printed board. In the production process of the printed board module, the printed board and the shell are first assembled (the shell is a square frame structure, and the printed board is fixed in the shell), then the components are inserted and assembled on the through hole of the printed board (the components are also fixed on the shell through the lugs), and finally a plurality of components are manually welded on the printed board.

[0004] However, manual welding has uncontrollable factors, and the welding quality completely depends on the skill level of workers, so it is impossible to guarantee the quality consistency of the printed board modules. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects or improvement requirements of the prior art, the utility model provides a positioning device for printed board module of wave crest weld, which aims at: not only can the shell of the printed board module assembly with different shapes and sizes be positioned and clamped, but also can be used with wave crest weld, thereby improving the consistency and reliability of the printed board component welding.

[0006] To achieve the above purpose, in the first aspect, the utility model provides a positioning device for printed board module of wave crest weld, which includes a bottom plate and a positioning assembly.

[0007] The bottom plate has a position-avoiding hole for avoiding the printed board on the printed board module;

[0008] The positioning assembly comprises a fixed block, a first guide rail, a second guide rail, a third guide rail and a fourth guide rail, the fixed block is located on the bottom plate, the first guide rail and the second guide rail are arranged in parallel and at intervals on the bottom plate, a first lap is arranged on the side edge of the first guide rail, a second lap is arranged on the side edge of the second guide rail, the first lap and the second lap are arranged in parallel and at intervals and extend out of the bottom plate to be placed on the rollers of the wave soldering machine, a sliding groove extending in a first direction is arranged on the first guide rail and the second guide rail, the third guide rail and the fourth guide rail are arranged in parallel and at intervals on the bottom plate, the two ends of the third guide rail are slidably inserted into the sliding grooves, two first movable blocks and a second movable block slidable in a second direction are arranged on the third guide rail, and a third movable block slidable in the second direction is arranged on the fourth guide rail, and a positioning space for clamping the upper shell of the printed board module is formed between the fixed block, the first movable block, the second movable block and the third movable block.

[0009] Optionally, one side of the fixed block, the first movable block, the second movable block and the third movable block towards the positioning space is provided with an L-shaped step to correspond to the four right angles of the upper shell of the printed board module.

[0010] Optionally, the two ends of the third guide rail are provided with sliding blocks, the sliding blocks are in sliding fit with the corresponding sliding grooves, and the sliding blocks and the sliding grooves are dovetail structures or T-shaped structures.

[0011] Optionally, the positioning device further comprises two spaced-apart connecting blocks, each of the connecting blocks comprises a first connecting part and a second connecting part connected to each other, the first connecting part and the second connecting part are arranged in an L shape, the first connecting part is located on the third guide rail, the first movable block and the second movable block are located between the two first connecting parts, and the second connecting part is connected to the top surface of the corresponding sliding block.

[0012] Optionally, the first connecting part has through holes, the third guide rail is inserted into the opposite through holes, and the first connecting part and the third guide rail are connected together by bolts.

[0013] Optionally, a first locking bolt is inserted into the second connecting part, and the first locking bolt abuts against the first guide rail or the second guide rail after penetrating through the second connecting part.

[0014] Optionally, a guide groove is arranged on each of the first movable block, the second movable block and the third movable block, the third guide rail and the fourth guide rail extend in the second direction, and the guide groove is in sliding fit with the corresponding third guide rail or fourth guide rail.

[0015] Optionally, the first movable block, the second movable block and the third movable block are each provided with a second locking bolt, and the second locking bolt penetrates through the first movable block, the second movable block or the third movable block and abuts against the third guide rail or the fourth guide rail.

[0016] Optionally, the fourth guide rail is provided with a limiting block at each end to limit the third movable block.

[0017] The above technical features can be combined with each other as long as they do not conflict with each other.

[0018] Compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0019] For the positioning device for the printed board module of the wave-soldering, before the printed board module is welded (at this time, the printed board is fixed on the shell), firstly, the side of the shell on the printed board module abuts against the side of the fixed block, and the third movable block is moved so that the side of the third movable block abuts against the other side of the shell on the printed board module, at this time, the positioning of the two sides of the shell can be realized by the first fixed block and the third movable block. Then, the third guide rail is moved towards the shell on the printed board module, and the first movable block and the second movable block abut against the shell on the printed board module, so that the clamping positioning of the shell on the printed board module is realized by forming the positioning space. At this time, at least four sides of the shell are clamped and positioned. And, since the positions of the first movable block, the second movable block and the third movable block on the bottom plate are adjustable, the shell of the printed board module assembly with different shapes and sizes can be positioned and clamped. Finally, the first lap and the second lap are respectively placed on the rollers of the wave-soldering, enter the welding interval of the wave-soldering through the rollers, and the components on the printed board are automatically welded in the wave-soldering through the selected welding programming. The printed board is automatically welded from the bottom of the bottom plate and through the avoiding hole of the bottom plate during the wave-soldering, and the wave, the speed and the welding time are controllable, the consistency and the reliability of the welding of the components on the printed board are improved, and the problem that the qualities of the printed board modules are inconsistent due to the manual welding of the components is avoided.

[0020] That is, the positioning device for the printed board module of the wave-soldering provided by the utility model embodiment can not only position and clamp the shell of the printed board module assembly with different shapes and sizes, but also can be used in cooperation with the wave-soldering, and the consistency and the reliability of the welding of the components on the printed board are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the positioning device for the printed board module of the wave-soldering of the utility model embodiment;

[0022] Figure 2 is a structural schematic view of a bottom plate provided by an embodiment of the present application;

[0023] Figure 3 is a structural schematic view of a first guide rail provided by an embodiment of the present application;

[0024] Figure 4 is a structural schematic view of a second guide rail provided by an embodiment of the present application;

[0025] Figure 5 is an assembly schematic view of a third guide rail provided by an embodiment of the present application;

[0026] Figure 6 is a structural schematic view of a third guide rail provided by an embodiment of the present application;

[0027] Figure 7 is an assembly schematic view of a fourth guide rail provided by an embodiment of the present application;

[0028] Figure 8 is a structural schematic view of a fourth guide rail provided by an embodiment of the present application;

[0029] Figure 9 is a structural schematic view of a fixing block provided by an embodiment of the present application;

[0030] Figure 10 is a structural schematic view of a sliding block provided by an embodiment of the present application;

[0031] Figure 11 is a structural schematic view of a connecting block provided by an embodiment of the present application;

[0032] Figure 12 is a structural schematic view of a first movable block provided by an embodiment of the present application;

[0033] Figure 13 is a structural schematic view of a second movable block provided by an embodiment of the present application;

[0034] Figure 14 is a structural schematic view of a third movable block provided by an embodiment of the present application;

[0035] Figure 15 is a flow chart of a processing method of a printed board module for wave-soldering provided by an embodiment of the present application.

[0036] In all the drawings, same reference signs represent same technical features, specifically:

[0037] 1, bottom plate; 11, avoiding hole; 12, positioning hole; 13, threaded hole; 14, positioning pin; 15, bolt; 2, fixed block; 3, first guide rail; 31, first flange; 4, second guide rail; 41, second flange; 5, third guide rail; 51, first movable block; 52, second movable block; 53, sliding block; 54, connecting block; 541, first connecting part; 5411, through hole; 542, second connecting part; 543, first locking bolt; 6, fourth guide rail; 61, third movable block; 62, limiting block; 63, plug; 7, sliding groove; 71, bolt through hole; 8, L-shaped step; 9, guide groove; 10, second locking bolt; 100, shell; 200, printed board. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict.

[0039] In the description of the utility model, 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" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0040] In addition, the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0041] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0042] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can 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 "over", "above" and "on" the second feature can be that the first feature is directly above or diagonally above the second feature, or it simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "on" the second feature can be that the first feature is directly below or diagonally below the second feature, or it simply means that the first feature is horizontally lower than the second feature.

[0043] Embodiment:

[0044] Figure 1 is a structure schematic view of the positioning device for the printed board module of the wave-soldering of the utility model embodiment, as Figure 1 shown, the positioning device includes bottom plate 1 and positioning assembly.

[0045] Figure 2 is a structure schematic view of the bottom plate provided by the utility model embodiment, as Figure 2 shown, the bottom plate 1 has the position-avoiding hole 11 for avoiding the printed board 200 on the printed board module.

[0046] The positioning assembly includes fixed block 2, first guide rail 3, second guide rail 4, third guide rail 5 and fourth guide rail 6, and the fixed block 2 is located on the bottom plate 1, and the first guide rail 3 and the second guide rail 4 are arranged in parallel and spaced apart on the bottom plate 1.

[0047] Figure 3 is a structure schematic view of the first guide rail provided by the utility model embodiment, Figure 4 is a structure schematic view of the second guide rail provided by the utility model embodiment, as Figure 3 and Figure 4As shown in the drawings, the side of the first guide rail 3 is provided with a first flange 31, the side of the second guide rail 4 is provided with a second flange 41, the first flange 31 and the second flange 41 are arranged in parallel and are spaced apart, and both extend out of the bottom plate 1 to be placed on the rollers of the wave soldering, and the first guide rail 3 and the second guide rail 4 are both provided with a sliding groove 7 extending in the first direction (X-axis direction), and the third guide rail 5 and the fourth guide rail 6 are arranged in parallel and are spaced apart on the bottom plate 1.

[0048] Figure 5 It is the assembly schematic view of the third guide rail provided by the embodiment of the utility model, Figure 6 It is the structure schematic view of the third guide rail provided by the embodiment of the utility model, in combination with Figure 5 And Figure 6 As shown in the drawings, the two ends of the third guide rail 5 are respectively slidably inserted into the sliding groove 7, and the third guide rail 5 is provided with a first movable block 51 and a second movable block 52 which can slide in the second direction (Y-axis direction).

[0049] Figure 7 It is the assembly schematic view of the fourth guide rail provided by the embodiment of the utility model, Figure 8 It is the structure schematic view of the fourth guide rail provided by the embodiment of the utility model, in combination with Figure 7 And Figure 8 As shown in the drawings, the fourth guide rail 6 is provided with a third movable block 61 which can slide in the second direction, and the fixed block 2, the first movable block 51, the second movable block 52 and the third movable block 61 form a positioning space for clamping the printed board module upper shell 100.

[0050] The positioning device for the printed board module of the wave-soldering is provided by the embodiment of the utility model, before welding the printed board module (at this time, the printed board 200 is fixed on the shell 100), first, the side of the shell 100 on the printed board module is abutted with the side of the fixed block 2, and the third movable block 61 is moved, so that the side of the third movable block 61 is abutted with the other side of the shell 100 on the printed board module, at this time, the positioning of the two sides of the shell 100 can be realized through the first fixed block 2 and the third movable block 61. Then, the third guide rail 5 is moved to the direction of the shell 100 on the printed board module, and the first movable block 51 and the second movable block 52 are abutted with the shell 100 on the printed board module, so that the clamping positioning of the shell 100 on the printed board module is realized through the forming of the positioning space. At this time, at least four sides of the shell 100 are clamped and positioned. And, since the first movable block 51, the second movable block 52 and the third movable block 61 are adjustable in position on the bottom plate 1, the shell 100 of the printed board module assembly of different shapes and sizes can be positioned and clamped. Finally, the first lap 31 and the second lap 41 are respectively placed on the rollers of the wave-soldering, the welding interval of the wave-soldering is entered through the rollers, and the automatic welding of the components on the printed board 200 is realized in the wave-soldering through the selected welding programming. The automatic welding of the printed board 200 is realized from the bottom of the bottom plate 1 and through the avoiding hole 11 of the bottom plate 1 during the wave-soldering, and the wave, the speed and the welding time are controllable, the consistency and the reliability of the welding of the components on the printed board 200 are improved, and the problem that the qualities of the printed board modules are inconsistent due to the manual welding of the components is avoided.

[0051] That is, the positioning device for the printed board module of the wave-soldering provided by the embodiment of the utility model can not only position and clamp the shell 100 of the printed board module assembly of different shapes and sizes, but also can be used in cooperation with the wave-soldering, so that the consistency and the reliability of the welding of the components on the printed board 200 are improved.

[0052] It is easy to understand that the positioning device can not only position and clamp the shell 100 of the printed board module assembly of different shapes and sizes, but also can provide the laps (the first lap 31 and the second lap 41) matched with the rollers on the wave-soldering equipment, so that the wave-soldering equipment can be matched while being positioned and clamped.

[0053] Exemplarily, the first guide rail 3 and the second guide rail 4 are provided with the bolt through hole 71 corresponding to the sliding groove 7. The bottom plate 1 is provided with a plurality of threaded holes 13 and a plurality of positioning holes 12.

[0054] In an implementation mode of the utility model, the fixed block 2 (see Figure 9The first movable block 51, the second movable block 52 and the third movable block 61 are provided with L-shaped steps 8 on the side facing the positioning space, so as to correspond to the four right angles of the upper shell 100 of the printed board module.

[0055] In the above embodiment, the L-shaped steps 8 can support the shell 100 horizontally while clamping and positioning the shell 100, so as to avoid the risk of falling of the printed board module assembly from the bottom plate 1.

[0056] Exemplarily, the fixed block 2 is located at one end of the first guide rail 3 and one end of the fourth guide rail 6. The fixed block 2 is provided with a positioning hole 12 and a bolt through hole 71, and the fixed block 2 is fixed on the bottom plate 1 by inserting a positioning pin 14 and a bolt 15.

[0057] It should be noted that in other embodiments of the present application, the fixed block 2, the first movable block 51, the second movable block 52 and the third movable block 61 can also be provided with positioning grooves on the side facing the positioning space, and the positioning support is achieved by inserting and cooperating with the shell 100, and the present application does not limit this.

[0058] Figure 10 is a structural schematic view of a sliding block provided by the embodiment of the present application, as shown in the figure, Figure 10 Both ends of the third guide rail 5 are provided with sliding blocks 53, the sliding blocks 53 are in sliding cooperation with the corresponding sliding grooves 7, and the sliding blocks 53 and the sliding grooves 7 are both dovetail type structures or T-shaped structures.

[0059] In the above embodiment, the sliding blocks 53 facilitate the sliding cooperation of the third guide rail 5 and the sliding grooves 7. Moreover, the sliding blocks 53 and the sliding grooves 7 are both dovetail type structures or T-shaped structures, which can effectively prevent the sliding blocks 53 from being separated from the sliding grooves 7 during the sliding cooperation.

[0060] Figure 11 is a structural schematic view of a connecting block provided by the embodiment of the present application, as shown in the figure, Figure 11 The positioning device further comprises two spaced-apart connecting blocks 54, each of which comprises a first connecting part 541 and a second connecting part 542 connected to each other, the first connecting part 541 and the second connecting part 542 are arranged in an L shape, the first connecting part 541 is located on the third guide rail 5, and the first movable block 51 and the second movable block 52 are located between the two first connecting parts 541, and the second connecting part 542 is connected to the top surface of the corresponding sliding block 53. The connecting block 54 plays a role in connecting the third guide rail 5 and the sliding block 53.

[0061] In addition, the first connecting part 541 is provided with a through hole 5411, the third guide rail 5 is inserted into the opposite through holes 5411, and the first connecting part 541 and the third guide rail 5 are connected by bolts. The through hole 5411 can realize the positioning of the third guide rail 5 on the connecting block 54, and the reliable connection of the two by bolts.

[0062] Exemplarily, the two ends of the third guide rail 5 are provided with threaded holes 13 and positioning holes 12.

[0063] In the embodiment, the first locking bolt 543 is inserted into the second connecting part 542, and the first locking bolt 543 abuts against the first guide rail 3 or the second guide rail 4 after penetrating the second connecting part 542.

[0064] In the above embodiment, the first locking bolt 543 can lock the sliding of the connecting block 54, thereby locking the sliding of the sliding block 53.

[0065] Exemplarily, the sliding block 53 is provided with a through hole, which realizes the avoidance of the first locking bolt 543.

[0066] Figure 12 is a structural schematic view of a first movable block provided by the embodiment of the utility model, Figure 13 is a structural schematic view of a second movable block provided by the embodiment of the utility model, Figure 14 is a structural schematic view of a third movable block provided by the embodiment of the utility model, and Figures 12-14 As shown in the figure, the first movable block 51, the second movable block 52 and the third movable block 61 are all provided with a guide groove 9, the third guide rail 5 and the fourth guide rail 6 all extend along the second direction, and the guide groove 9 is in sliding cooperation with the corresponding third guide rail 5 or fourth guide rail 6.

[0067] In the above embodiment, the guide groove 9 can realize the sliding cooperation of the first movable block 51, the second movable block 52 and the third movable block 61 with the corresponding guide rail, and ensure the stability in the sliding process.

[0068] Exemplarily, the guide groove 9 can be a dovetail structure or a T-shaped structure.

[0069] Similarly, the first movable block 51, the second movable block 52 and the third movable block 61 are all inserted with the second locking bolt 10, the second locking bolt 10 abuts against the third guide rail 5 or the fourth guide rail 6 after penetrating the first movable block 51, the second movable block 52 or the third movable block 61, thereby realizing the locking of the corresponding movable block by the second locking bolt 10.

[0070] It needs to be explained that in other embodiments of the utility model, the first movable block 51, the second movable block 52 and the third movable block 61 can also be locked by the positioning pin (a plurality of positioning holes are arranged on the third guide rail 5 and the fourth guide rail 6, and the positioning pin is inserted into the corresponding positioning hole).

[0071] Exemplarily, the first movable block 51, the second movable block 52 and the third movable block 61 are all provided with threaded holes 13 to insert the second locking bolt 10. The fourth guide rail 6 is provided with a positioning hole 12 and a bolt through hole 71. Among them, the plug 63 is movably inserted into the bolt through hole 71, so that after the fourth guide rail 6 is fixed by inserting the bolt through the bolt through hole 71, the bolt through hole 71 can be filled by the plug 63, ensuring that the surface of the fourth guide rail 6 is flush, and ensuring the locking of the second locking bolt 10.

[0072] In this embodiment, the two ends of the fourth guide rail 6 are provided with limit blocks 62 to limit the third movable block 61, so as to avoid the third movable block 61 from being separated from the fourth guide rail 6 during sliding.

[0073] Exemplarily, the end of the fourth guide rail 6 is provided with a threaded hole 13, so that the fourth guide rail 6 and the limit block 62 are connected by a bolt.

[0074] Similarly, the first guide rail 3 and the second guide rail 4 are both provided with limit blocks 62.

[0075] Overall, compared with the prior art, the positioning device can achieve the following beneficial effects:

[0076] 1. The utility model discloses a guide rail and movable movable block, and can be applicable to the installation of printed board module assemblies of different shapes and sizes, is strong in universality, and is simple and convenient to operate.

[0077] 2. The utility model is accurate in positioning, reliable in clamping, uses selected welding programming, and significantly improves welding quality consistency and stability, avoids uncontrollable factors and quality hidden dangers of manual welding.

[0078] 3. The utility model uses wave soldering to replace manual welding, reduces welding time, reduces labor intensity, improves production efficiency and meets batch production demand.

[0079] Figure 15 It is a flow chart of the processing method of the printed board module for wave soldering provided by the utility model embodiment, as shown in Figure 15 The processing method is based on the above-mentioned positioning device, and the processing method comprises:

[0080] S1, one side of the upper shell 100 of the printed board module is abutted with one side of the fixed block 2, and the third movable block 61 is moved, so that one side of the third movable block 61 is abutted with the other side of the upper shell 100 of the printed board module.

[0081] S2, the third guide rail 5 is moved to the direction of the printed board module upper shell 100, and the first movable block 51 and the second movable block 52 are made to abut against the printed board module upper shell 100, so that the clamping positioning of the printed board module upper shell 100 is realized by forming a positioning space.

[0082] S3, the first lap 31 and the second lap 41 are respectively placed on the roller of the wave soldering, enter the welding interval of the wave soldering through the roller, and the components on the printed board 200 are automatically welded in the wave soldering through selective welding programming.

[0083] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning device for a printed circuit board module used in wave soldering, characterized in that, The positioning device includes a base plate (1) and a positioning assembly; The base plate (1) has a clearance hole (11) for avoiding the printed circuit board (200) on the printed circuit board module. The positioning assembly includes a fixing block (2), a first guide rail (3), a second guide rail (4), a third guide rail (5), and a fourth guide rail (6). The fixing block (2) is located on the base plate (1). The first guide rail (3) and the second guide rail (4) are arranged parallel to each other on the base plate (1). A first overlap (31) is provided on the side of the first guide rail (3), and a second overlap (41) is provided on the side of the second guide rail (4). The first overlap (31) and the second overlap (41) are arranged parallel to each other and both extend out of the base plate (1) to be placed on the wave soldering rollers respectively. Both the first guide rail (3) and the second guide rail (4) are provided with... There is a groove (7) extending along the first direction. The third guide rail (5) and the fourth guide rail (6) are arranged parallel to each other on the base plate (1). The two ends of the third guide rail (5) are slidably inserted into the groove (7). The third guide rail (5) is provided with two first movable blocks (51) and second movable blocks (52) that can slide along the second direction. The fourth guide rail (6) is provided with a third movable block (61) that can slide along the second direction. The fixed block (2), the first movable block (51), the second movable block (52) and the third movable block (61) form a positioning space for clamping the upper housing (100) of the printed circuit board module.

2. The positioning device for a printed circuit board module for wave soldering according to claim 1, characterized in that, The fixed block (2), the first movable block (51), the second movable block (52) and the third movable block (61) are all provided with L-shaped steps (8) on the side facing the positioning space, so as to respectively support the four right angles of the upper shell (100) of the printed circuit board module.

3. The positioning device for a printed circuit board module for wave soldering according to claim 1, characterized in that, Both ends of the third guide rail (5) are provided with sliders (53), the sliders (53) slide in cooperation with the corresponding grooves (7), and both the sliders (53) and the grooves (7) are dovetail-shaped or T-shaped structures.

4. A positioning device for a printed circuit board module for wave soldering according to claim 3, characterized in that, The positioning device further includes two spaced connecting blocks (54), each connecting block (54) including a first connecting part (541) and a second connecting part (542) connected to each other. The first connecting part (541) and the second connecting part (542) are arranged in an L-shape. The first connecting part (541) is located on the third guide rail (5), and the first movable block (51) and the second movable block (52) are located between the two first connecting parts (541). The second connecting part (542) is connected to the top surface of the corresponding slider (53).

5. A positioning device for a printed circuit board module for wave soldering according to claim 4, characterized in that, The first connecting part (541) has a through hole (5411), the third guide rail (5) is inserted into the opposite through hole (5411), and the first connecting part (541) and the third guide rail (5) are connected together by bolts.

6. A positioning device for a printed circuit board module for wave soldering according to claim 4, characterized in that, A first locking bolt (543) is inserted into the second connecting part (542). The first locking bolt (543) passes through the second connecting part (542) and abuts against the first guide rail (3) or the second guide rail (4).

7. A positioning device for a printed circuit board module for wave soldering according to claim 1, characterized in that, The first movable block (51), the second movable block (52) and the third movable block (61) are all provided with guide grooves (9), the third guide rail (5) and the fourth guide rail (6) both extend along the second direction, and the guide groove (9) slides in cooperation with the corresponding third guide rail (5) or the fourth guide rail (6).

8. A positioning device for a printed circuit board module for wave soldering according to claim 7, characterized in that, The first movable block (51), the second movable block (52) and the third movable block (61) are each fitted with a second locking bolt (10). The second locking bolt (10) passes through the first movable block (51), the second movable block (52) or the third movable block (61) and abuts against the third guide rail (5) or the fourth guide rail (6).

9. A positioning device for a printed circuit board module for wave soldering according to any one of claims 1-8, characterized in that, Limiting blocks (62) are provided at both ends of the fourth guide rail (6) to limit the third movable block (61).

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