Tool for being matched with welding of circuit board

Abstract

The invention discloses a tool used for being matched with circuit board welding. The tool comprises a first positioning assembly and a second positioning assembly. The first positioning assembly is used for bearing a circuit board body of the circuit board and is provided with a welding avoiding area. And the second positioning assembly is releasably or detachably connected to the first positioning assembly and is used for temporarily fixing the vertical connector and / or the horizontal connector of the circuit board on the front surface of the circuit board body. Wherein the welding avoiding area is used for exposing pins, penetrating out of the back face of the circuit board body, of the vertical connector and / or the horizontal connector. The tool ensures that a circuit board body, a vertical connector and a horizontal connector which are welded by the tool can be effectively connected with a male-female complementary connector after being welded, so that the welding quality and the production efficiency of the circuit board are improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of circuit board welding, and more specifically, the present invention relates to a tool for welding a circuit board. Background Art

[0002] In the field of electronic manufacturing, the welding of connectors on circuit boards (or circuit boards) is a crucial process. Among them, vertical connectors and horizontal connectors are two common types of connectors. Vertical connectors usually insert the connector vertically into the circuit board, while horizontal connectors place the connector horizontally on the circuit board. These two types of connectors play a key role in the assembly and connection of electronic equipment. In the prior art, vertical connectors are usually welded to the circuit board body in the following way: first, the vertical connector is vertically inserted into the preset position of the circuit board body, and the operator uses welding equipment to weld the pins of the connector and the pads on the circuit. The welding method of horizontal connectors and vertical connectors is roughly the same.

[0003] Although manual soldering is widely used in the prior art, it still has the following disadvantages: when the operator inserts the vertical connector and / or the horizontal connector into the corresponding preset position of the circuit board body only by intuition, there is a high probability that the pins of the vertical connector and / or the horizontal connector will be inserted into the preset position of the circuit board body in a non-vertical state, making it difficult for the circuit board after the vertical connector and / or the horizontal connector is soldered to the circuit board body to be effectively connected with the male and female complementary connector, making the soldered circuit board scrapped, seriously affecting the soldering quality and production efficiency of the circuit board. Summary of the invention

[0004] In order to solve one or more of the technical problems mentioned above, the present invention provides a tool for assisting in the welding of circuit boards, which can improve the welding quality, production efficiency and yield rate of circuit boards.

[0005] An embodiment of the present invention provides a tool for welding a circuit board, comprising:

[0006] A first positioning assembly, which is used to support a circuit board body of the circuit board and has a welding avoidance area; and

[0007] a second positioning assembly, which is releasably or detachably connected to the first positioning assembly and is used to temporarily fix the vertical connector and / or horizontal connector of the circuit board on the front side of the circuit board body;

[0008] The soldering avoidance area is used to expose the pins of the vertical connector and / or the horizontal connector that pass through the back side of the circuit board body.

[0009] Furthermore, the number of the vertical connectors is multiple;

[0010] The first positioning assembly comprises a carrying plate for carrying the circuit board body and having the welding avoidance area;

[0011] The second positioning assembly includes a clamping plate, one end of which is hinged to the carrier plate and the other end of which is interlocked with the carrier plate, and a limiting plate arranged between the clamping plate and the carrier plate, wherein the limiting plate is located between the clamping plate and the circuit board body and is connected to the carrier plate, and has a plurality of positioning through holes allowing each of the vertical connectors to pass therethrough so that each of the vertical connectors can pass out of the circuit board body according to a corresponding predetermined position, and the clamping plate is used to cooperate with the carrier plate and clamp the stacked circuit board bodies and the limiting plate between the clamping plate and the carrier plate.

[0012] Furthermore, a plurality of first positioning pins are provided on one of the carrier plate and the limit plate, and a plurality of first positioning holes are provided on the other of the carrier plate and the limit plate. The plurality of first positioning pins can pass through the plurality of reserved notches or the plurality of reserved through holes of the circuit board body one by one and be inserted into the corresponding first positioning holes. A first limiting protrusion and / or a first avoidance groove are provided on the side of the limit plate facing the carrier plate. The first limiting protrusion is used to abut against the circuit board body, and the first avoidance groove is used to avoid the electronic components of the circuit board.

[0013] Furthermore, a second limiting protrusion and / or a second avoiding groove is provided on the side of the clamping plate facing the limiting plate, the second limiting protrusion is used to abut the limiting plate, and the second avoiding groove is used to avoid the part of the vertical connector being forced to remain outside the limiting plate.

[0014] Furthermore, the clamping plate includes a positioning plane facing the limiting plate and at least one positioning boss arranged on the positioning plane, the positioning plane is used to abut and position a part of the plurality of vertical connectors, and at least one positioning boss is used to abut and position the remaining part of the plurality of vertical connectors.

[0015] Furthermore, the tool also includes a magnetic lock, which includes a first magnetic component provided on the supporting plate and protruding toward the clamping plate, and a second magnetic component provided on the clamping plate and mutually attracted to the first magnetic component, wherein one of the first magnetic component and the second magnetic component is a magnetic material, and the other of the first magnetic component and the second magnetic component is a magnetic material or a magnetizable material.

[0016] Furthermore, at least one overlapping boss is provided on the carrying plate, and the overlapping boss is used to carry the horizontal connector installed in the corresponding preset position of the circuit board body, so as to cooperate with the limiting plate and jointly clamp the horizontal connector.

[0017] Further, the tool also includes a pallet having a first area and a second area and a pivot structure arranged on the pallet and located at the intersection of the first area and the second area, the bearing plate is arranged on the pallet through the pivot structure, when the bearing plate carrying the limiting plate and the pressing plate is flipped to be completely located in the first area, the bearing plate is closer to the pallet than the limiting plate and the pressing plate, and the bearing plate abuts against a first pad fixedly provided in the first area of ​​the pallet, when the bearing plate carrying the limiting plate and the pressing plate is flipped to be completely located in the second area, the pressing plate is closer to the pallet than the limiting plate and the bearing plate, and the pressing plate abuts against a second pad fixedly provided in the second area of ​​the pallet.

[0018] Furthermore, the tool also includes a supporting structure, which includes a base, a support rod arranged on the base, and a ball joint structure arranged on the support rod and used to connect the support plate, and the support plate rotates relative to the base and the support rod with the support of the ball joint structure.

[0019] Furthermore, the tool further comprises a locking mechanism, and the locking mechanism comprises:

[0020] A sliding rod, which is inserted into the support rod and can abut against the ball joint structure;

[0021] A through hole is opened in the support rod along the radial direction of the support rod, and the hole wall includes a first conical surface and a second conical surface symmetrical about the central axis of the support rod;

[0022] An extrusion ring, which is arranged inside the first conical surface and has a third conical surface matching the first conical surface;

[0023] An extrusion screw, comprising a head disposed in the second conical surface and having a fourth conical surface matched with the second conical surface, and a screw connected to the head and passing through the extrusion ring;

[0024] An adjusting nut, which is arranged outside the support rod and cooperates with the screw rod;

[0025] When the adjusting nut is rotated and approaches the head of the extrusion screw, the head of the extrusion screw and the extrusion ring move toward each other in the through hole, and the sliding rod is pushed to apply pressure to the ball head of the ball joint structure through the first inclined push surface provided at the head of the extrusion screw and the second inclined push surface provided at the end of the extrusion ring, so as to increase the friction force of the ball head in the ball socket of the ball joint structure;

[0026] When the adjusting nut is rotated and moves away from the head of the pressing screw, the first and second tapered surfaces of the through hole sequentially guide the pressing ring and the head of the pressing screw to move away from each other via the third and fourth tapered surfaces.

[0027] The tool provided in this embodiment for assisting the circuit board welding cleverly uses the first positioning component to stabilize the circuit board body, and at the same time, through the second positioning component connected to the first positioning component, the vertical connector and the horizontal connector are temporarily fixed and accurately placed on the circuit board body. This design ensures that the pins of the vertical connector and the horizontal connector can penetrate the circuit board body in the correct insertion posture and maintain the required posture, so that the operator can accurately weld the vertical connector and the horizontal connector on the circuit board body in the welding avoidance area, and obtain a high-quality circuit board including the vertical connector and the horizontal connector, ensuring that the vertical connector and the horizontal connector of the circuit board can be effectively connected with the corresponding male and female complementary connectors (belonging to the upper computer or the lower computer), so as to achieve the purpose of improving the welding quality, production efficiency and yield rate of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0029] Figure 1 An exploded view of a first positioning component, a second positioning component and a circuit board before welding in a tool for welding a circuit board according to an embodiment of the present invention is shown;

[0030] Figure 2 A schematic diagram showing a carrier board and a circuit board before welding according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram showing a load-bearing plate, a limiting plate and a circuit board before welding according to an embodiment of the present invention;

[0032] Figure 4A schematic diagram showing a load-bearing plate, a limiting plate, a pressing plate and a circuit board before welding according to an embodiment of the present invention;

[0033] Figure 5 A schematic structural diagram of a limit plate according to an embodiment of the present invention is shown;

[0034] Figure 6 A schematic structural diagram of a load-bearing plate according to an embodiment of the present invention is shown;

[0035] Figure 7 A schematic structural diagram of a compression plate according to an embodiment of the present invention is shown;

[0036] Figure 8 A schematic structural diagram of a support plate according to an embodiment of the present invention is shown;

[0037] Fig. 9 A schematic diagram showing a circuit board in a first area according to an embodiment of the present invention is shown;

[0038] Fig.10 A schematic diagram showing a circuit board according to an embodiment of the present invention in the second area;

[0039] Fig.11 A schematic diagram showing a tool for soldering a circuit board according to an embodiment of the present invention in use;

[0040] Fig.12 A cross-sectional view of a tool for soldering a circuit board according to an embodiment of the present invention in use is shown.

[0041] In the figure:

[0042] 1. first positioning assembly; 11. bearing plate; 111. welding avoidance area; 112. first positioning pin; 113. overlapping boss;

[0043] 2. Second positioning assembly; 21. Pressing plate; 211. Second limiting protrusion; 212. Positioning plane; 213. Positioning boss; 22. Limiting plate; 221. Positioning through hole; 222. First positioning hole; 223. First limiting protrusion; 224. First avoidance groove;

[0044] 3. Magnetic lock; 31. First magnetic component; 32. Second magnetic component;

[0045] 4. support plate; 41. first cushion block; 42. second cushion block;

[0046] 5. Pivot structure;

[0047] 6. Support structure; 61. Base; 62. Support rod; 621. Through hole; 63. Ball joint structure;

[0048] 7. Locking mechanism; 71. Sliding rod; 72. Extrusion ring; 73. Extrusion screw; 74. Adjusting nut;

[0049] 100, circuit board body; 200, vertical connector; 300, horizontal connector. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0051] Figure 1 FIG. 2 shows an exploded view of the tool for soldering a circuit board according to the embodiment of the present invention in use. Figure 1 As shown, this embodiment provides a tool for welding a circuit board, comprising a first positioning component 1 and a second positioning component 2. The first positioning component 1 is used to support the circuit board body 100 of the circuit board body 100 and has a welding avoidance area 111. The second positioning component 2 can be releasably or detachably connected to the first positioning component 1, and is used to temporarily fix the vertical connector 200 and / or the horizontal connector 300 of the circuit board on the front side of the circuit board body 100. The welding avoidance area 111 is used to expose the pins of the vertical connector 200 and / or the horizontal connector 300 that pass through the back side of the circuit board body 100, so that the operator can perform welding operations there.

[0052] When in use, the circuit board body 100 is first placed on the first positioning component 1 to position the circuit board body 100 using the first positioning component 1, and then the second positioning component 2 is releasably or detachably connected to the first positioning component 1, and the vertical connector 200 and / or the horizontal connector 300 are temporarily fixed on the circuit board body 100 through the second positioning component 2, so that the pins of the vertical connector 200 and / or the horizontal connector 300 pass through the back of the circuit board body 100. Then, the tool and the circuit board body 100, the vertical connector 200 and / or the horizontal connector 300 inside are turned over to expose the welding avoidance area 111 of the first positioning component 1 at an angle that is convenient for welding operation, such as facing upward, so that the operator can perform the operation of welding the vertical connector 200 and / or the horizontal connector 300 on the circuit board body 100 in the welding avoidance area 111, and obtain a circuit board including the vertical connector 200 and / or the horizontal connector 300. Finally, the circuit board is removed from the second positioning component 2 and the first positioning component 1 by utilizing the releasable or detachable characteristics between the second positioning component 2 and the first positioning component 1 .

[0053] The tool for soldering a circuit board provided in this embodiment cleverly uses the first positioning component 1 to stabilize the circuit board body 100, and at the same time, the second positioning component 2 connected to the first positioning component 1 realizes the temporary fixation of the vertical connector 200 and / or the horizontal connector 300 and accurately places them on the circuit board body 100. This design ensures that the pins of the vertical connector 200 and the horizontal connector 300 can penetrate the circuit board body 100 in the correct insertion posture and maintain the required posture, so that the operator can accurately solder the vertical connector 200 and / or the horizontal connector 300 on the circuit board body 100 in the soldering avoidance area 111, and obtain a high-quality circuit board including the vertical connector 200 and / or the horizontal connector 300, ensuring that the vertical connector 200 and the horizontal connector 300 of the circuit board can be effectively connected with the corresponding male and female complementary connectors (belonging to the upper computer or the lower computer), so as to achieve the purpose of improving the soldering quality, production efficiency and yield rate of the circuit board.

[0054] It should be noted that the detachable connection between the second positioning component 2 and the first positioning component 1 refers to a detachable connection structure well known in the art such as a bolt connection or a snap connection between the two. The releasable connection between the second positioning component 2 and the first positioning component 1 refers to a connection method similar to that between a door and a door frame, such as one end of the two is connected by a hinge and the other end is connected by a lock, so that the second positioning component 2 can be flipped relative to the first positioning component 1 and open the area of ​​the first positioning component 1 for carrying the circuit board.

[0055] Figure 2 FIG. 1 shows a schematic diagram of a carrier board 11 and a circuit board before welding according to an embodiment of the present invention. Figure 3 Combined with Figure 1 and Figure 2 As shown, the number of vertical connectors 200 in the circuit board is usually multiple. The first positioning component 1 includes a carrier board 11 for carrying the circuit board body 100 and having a welding avoidance area 111 to achieve the support of the circuit board body 100 and provide welding positions for the pins of the vertical connector 200 and the horizontal connector 300 after loading.

[0056] Figure 3 Schematic diagram of the carrier plate 11, the limiting plate 22 and the circuit board before welding in this embodiment, Figure 4 FIG. 1 shows a schematic diagram of the load-bearing plate 11, the limiting plate 22, the pressing plate 21 and the circuit board before welding in this embodiment. Figure 3 and Figure 4 Combined with Figure 1 and Figure 2As shown, the second positioning assembly 2 includes a clamping plate 21 hinged to the bearing plate 11 at one end and interlocked with the bearing plate 11 at the other end, and a limiting plate 22 arranged between the clamping plate 21 and the bearing plate 11 .

[0057] Figure 5 FIG. 2 shows a schematic diagram of the structure of the limit plate 22 of this embodiment. Figure 5 Combined with Figure 1-Figure 4 As shown, the limiting plate 22 is located between the clamping plate 21 and the circuit board body 100 and is connected to the circuit board body 100. The limiting plate 22 has a plurality of positioning through holes 221 that allow each vertical connector 200 to pass through so that each vertical connector 200 can pass out of the circuit board body 100 according to the corresponding predetermined position. After the circuit board body 100 is placed on the carrier plate 11 of the first positioning assembly 1, the limiting plate 22 is placed on the circuit board body 100 and connected to the circuit board body 100, and multiple vertical connectors 200 are inserted into the multiple positioning through holes 221 of the limiting plate 22 one by one and their pins are passed through the circuit board body 100, and then the clamping plate 21 in the open state is rotated to the closed state and interlocked with the carrier plate 11 is completed, and the stacked circuit board bodies 100 and the limiting plate 22 are pressed between the clamping plate 21 and the carrier plate 11 by using the clamping plate 21, so as to ensure that the multiple vertical connectors 200 inserted into the circuit board body 100 are firmly limited on the circuit board body 100, thereby avoiding the pins of the vertical connectors 200 from being offset during the welding process.

[0058] Figure 6 FIG. 1 is a schematic diagram showing the structure of the carrier plate 11 of this embodiment. Figure 5 and Figure 6 Combined with Figure 1-Figure 4As shown, as an example, a plurality of first positioning pins 112 are provided on one of the carrier plate 11 and the limiting plate 22, and a plurality of first positioning holes 222 are provided on the other of the carrier plate 11 and the limiting plate 22. The plurality of first positioning pins 112 can pass through the plurality of reserved notches or the plurality of reserved through holes of the circuit board body 100 one by one and be inserted into the corresponding first positioning holes 222. The cooperation of the plurality of first positioning pins 112 and the plurality of positioning holes can not only ensure that the circuit board body 100 is accurately positioned between the carrier plate 11 and the limiting plate 22, but also prevent the limiting plate 22 and the circuit board body 100 from being translated relative to the carrier plate 11. On this basis, a first limiting protrusion 223 and / or a first avoidance groove 224 are provided on the side of the limiting plate 22 facing the carrier plate 11. When both the first limiting protrusion 223 and the first avoiding groove 224 are provided on the limiting plate 22, the first limiting protrusion 223 is used to abut against the circuit board body 100 to prevent the circuit board body 100 from moving away from the carrier plate 11 (for example, moving upward), and the first avoiding groove 224 can be used to avoid the electronic components of the circuit board, especially the electronic components higher than the first limiting protrusion 223. When only the first limiting protrusion 223 is provided on the limiting plate 22, the first limiting protrusion 223 is used to abut against the circuit board body 100 to prevent the circuit board body 100 from moving away from the carrier plate 11. When only the first avoiding groove 224 is provided on the limiting plate 22, the first avoiding groove 224 needs to avoid all the electronic components provided on the circuit board body 100 by volume or number to ensure that the limiting plate 22 directly abuts against the circuit board body 100 and prevents the circuit board body 100 from moving away from the carrier plate 11.

[0059] Furthermore, at least one overlapping boss 113 is provided on the carrier plate 11, and at least one overlapping boss 113 is used to support the horizontal connector 300 installed in the corresponding preset position of the circuit board body 100, so as to cooperate with the limiting plate 22 and jointly clamp the horizontal connector 300, thereby realizing the limitation of the horizontal connector 300.

[0060] Figure 7 FIG. 2 shows a schematic diagram of the structure of the clamping plate 21 of this embodiment. Figure 5-Figure 7 Combined with Figure 1-Figure 4As shown, as an example, a second limiting protrusion 211 and / or a second avoidance groove are provided on the side of the pressing plate 21 facing the limiting plate 22. The second limiting protrusion 211 is used to abut the pressing plate 21, and the second avoidance groove is used to avoid the portion of the vertical connector 200 that is forced to remain outside the limiting plate 22. When both the second limiting protrusion 211 and the second avoidance groove are provided on the pressing plate 21, the second limiting protrusion 211 is used to abut the limiting plate 22 to prevent the limiting plate 22 from moving away from the carrier plate 11 (for example, moving upward), and the second avoidance groove can be used to avoid the portion of the vertical connector 200 that is forced to remain outside the limiting plate 22. When only the second limiting protrusion 211 is provided on the pressing plate 21, the second limiting protrusion 211 is used to abut the limiting plate 22 to prevent the limiting plate 22 from moving away from the carrier plate 11. When only the second avoidance groove is provided on the clamping plate 21, the second avoidance groove needs to rely on volume or quantity to avoid the portion of each vertical connector 200 that is forced to remain outside the limiting plate 22, so as to ensure that the clamping plate 21 directly abuts against the limiting plate 22 and prevent the limiting plate 22 from moving away from the supporting plate 11.

[0061] Furthermore, the clamping plate 21 includes a positioning plane 212 facing the limiting plate 22 and at least one positioning boss 213 provided on the positioning plane 212, the positioning plane 212 is used to abut against and position a portion of the plurality of vertical connectors 200, and at least one positioning boss 213 is used to abut against and position the remaining portion of the plurality of vertical connectors 200, so that the clamping plate 21 of the tool can adapt to different types of vertical connectors 200 for abutment, thereby improving the applicability of the tool.

[0062] like Figure 4 , Figure 6 and Figure 7 , and combined with Figure 1-Figure 3 As shown, the tool also includes a magnetic lock 3, which includes a first magnetic member 31 provided on the carrier plate 11 and protruding toward the clamping plate 21, and a second magnetic member 32 provided on the clamping plate 21 and mutually attracted to the first magnetic member 31. Among them, one of the first magnetic member 31 and the second magnetic member 32 is a magnetic material (such as a magnet or a magnet), and the other of the first magnetic member 31 and the second magnetic member 32 is a magnetic material or a magnetizable material (such as iron, cobalt or nickel). With the help of the magnetic lock 3, the clamping plate 21 can press the vertical connector 200, the horizontal connector 300, and the limit plate 22 onto the circuit board body 100, and the magnetic suction method can enable the operator to load and unload the circuit board more quickly.

[0063] Figure 8 The structural schematic diagram of the support plate 4 of this embodiment is shown. Fig. 9 FIG. 1 is a schematic diagram showing a circuit board of this embodiment in the first area. Fig.10FIG. 2 shows a schematic diagram of the circuit board of this embodiment in the second area. Figure 8-Figure 10 Combined with Figure 1-Figure 7 As shown, the tool also includes a pallet 4 having a first area and a second area and a pivot structure 5 arranged on the pallet 4 and located at the intersection of the first area and the second area. The carrying plate 11 is arranged on the pallet 4 through the pivot structure 5. When the carrying plate 11 carrying the limiting plate 22 and the clamping plate 21 is flipped to be completely located in the first area, the carrying plate 11 is closer to the pallet 4 than the limiting plate 22 and the clamping plate 21, and the carrying plate 11 abuts against the first pad 41 fixed in the first area of ​​the pallet 4, so that the operator can place the circuit board body 100, the vertical connector 200 and the horizontal connector 300 into the tool in sequence at the first area position. When the carrier plate 11 carrying the limit plate 22 and the clamping plate 21 is flipped to be completely located in the second area, the clamping plate 21 is closer to the pallet 4 than the limit plate 22 and the carrier plate 11, and the clamping plate 21 abuts against the second pad 42 fixed in the second area of ​​the pallet 4. By flipping the clamping plate 21, the limit plate 22 and the carrier plate 11 from the first area to the second area with the aid of the pivot structure 5, the welding avoidance area 111 provided on the carrier plate 11 can be exposed, so that the operator can weld the pins of the vertical connector 200 and the horizontal connector 300.

[0064] It should be noted that, in this embodiment, the clamping plate 21 is rotatably connected to the supporting plate 11 via a pivot, the supporting plate 11 is rotatably connected to the support plate 4 via a pivot, and the limiting plate 22 is constructed to be sandwiched between the clamping plate 21 and the supporting plate 11.

[0065] Fig.11 A schematic diagram showing the use of the tool for soldering a circuit board according to the embodiment of the present invention is shown. Fig.12 FIG. 2 shows a cross-sectional view of a tool for soldering a circuit board according to an embodiment of the present invention in use. Fig.11 and Fig.12 Combined with Figure 1-Figure 10 As shown, the tool also includes a support structure 6, which includes a base 61, a support rod 62 arranged on the base 61, and a ball joint structure 63 arranged on the support rod 62 and used to connect the pallet 4. With the support of the ball joint structure 63, the pallet 4 rotates relative to the base 61 and the support rod 62, so as to drive the clamping plate 21, the limit plate 22 and the supporting plate 11 located on the pallet 4 to follow the pallet 4 and rotate approximately synchronously with the pallet 4, thereby driving the circuit board to be welded to rotate approximately synchronously with the pallet 4, and the ball joint structure 63 can be used to make the pallet 4 rotate in multiple directions, thereby realizing the adjustment of the pins of the vertical connector 200 and the horizontal connector 300 to a welding angle that is more suitable for the operator, thereby facilitating welding and improving efficiency.

[0066] It should be noted that, in the present embodiment, the ball joint structure 63 is constructed with a straight rod at one end and a ball head at the other end. One end of the ball head is arranged in the spherical groove of the base 61, and one end of the straight rod is fixedly connected to the bottom surface of the support plate 4. The operator can realize rotational movement by operating the movement of the support plate 4.

[0067] Furthermore, the tool also includes a locking mechanism 7, which includes a sliding rod 71, a through hole 621, an extrusion ring 72, an extrusion screw 73 and an adjusting nut 74. The sliding rod 71 is inserted in the support rod 62 and can abut against the ball joint structure 63. The through hole 621 is opened in the support rod 62 along the radial direction of the support rod 62, and its hole wall includes a first conical surface and a second conical surface symmetrical about the central axis of the support rod 62. The extrusion ring 72 is arranged in the first conical surface and has a third conical surface matching the first conical surface. The extrusion screw 73 includes a head arranged in the second conical surface and having a fourth conical surface matching the second conical surface, and a screw connected to the head and passing through the extrusion ring 72. The adjusting nut 74 is arranged outside the support rod 62 and matches the screw. When the adjusting nut 74 is rotated and approaches the head of the extrusion screw 73, the head of the extrusion screw 73 and the extrusion ring 72 move closer in the through hole 621, and push the slide rod 71 to apply pressure to the ball head of the ball joint structure 63 through the first inclined push surface provided on the head of the extrusion screw 73 and the second inclined push surface provided on the end of the extrusion ring 72 to increase the friction force of the ball head in the ball socket of the ball joint structure 63, and press the slide rod 71 against the ball joint structure 63 through the extrusion ring 72 and the head of the extrusion screw 73, and lock the slide rod 71, thereby limiting the slide rod 71 from continuing to move radially along the support rod 62 in the through hole 621, thereby locking the ball joint structure 63. When the adjusting nut 74 is rotated and moves away from the head of the extrusion screw 73, the first conical surface and the second conical surface of the through hole 621 guide the heads of the extrusion ring 72 and the extrusion screw 73 away from each other via the third conical surface and the fourth conical surface in turn. At this time, the heads of the extrusion ring 72 and the extrusion screw 73 no longer press the sliding rod 71 against the ball joint structure 63, and the sliding rod 71 gradually moves away from the ball joint structure 63, thereby unlocking the ball joint structure 63 when the support plate 4 needs to be adjusted.

[0068] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0069] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "upper", "bottom", "inner", "outer", "radial", "circumferential", etc., which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of the present application, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0070] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0071] Although multiple embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art may conceive of many changes, modifications, and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The appended claims are intended to define the scope of protection of the present invention, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A tool for soldering a circuit board, characterized in that: include: A first positioning assembly, which is used to carry the circuit board body of the circuit board and has a welding avoidance area; as well as a second positioning assembly, which is releasably or detachably connected to the first positioning assembly and is used to temporarily fix the vertical connector and / or horizontal connector of the circuit board on the front side of the circuit board body; The soldering avoidance area is used to expose the pins of the vertical connector and / or the horizontal connector that pass through the back side of the circuit board body.

2. The tool according to claim 1, characterized in that: The number of the vertical connectors is multiple; The first positioning assembly comprises a carrying plate for carrying the circuit board body and having the welding avoidance area; The second positioning assembly includes a clamping plate, one end of which is hinged to the carrier plate and the other end of which is interlocked with the carrier plate, and a limiting plate arranged between the clamping plate and the carrier plate, wherein the limiting plate is located between the clamping plate and the circuit board body and is connected to the carrier plate, and has a plurality of positioning through holes allowing each of the vertical connectors to pass therethrough so that each of the vertical connectors can pass out of the circuit board body according to a corresponding predetermined position, and the clamping plate is used to cooperate with the carrier plate and clamp the stacked circuit board bodies and the limiting plate between the clamping plate and the carrier plate.

3. The tool according to claim 2, characterized in that A plurality of first positioning pins are provided on one of the carrier plate and the limiting plate, and a plurality of first positioning holes are provided on the other of the carrier plate and the limiting plate. The plurality of first positioning pins can pass through the plurality of reserved notches or the plurality of reserved through holes of the circuit board body one by one and be inserted into the corresponding first positioning holes. A first limiting protrusion and / or a first avoidance groove are provided on the side of the limiting plate facing the carrier plate. The first limiting protrusion is used to abut against the circuit board body, and the first avoidance groove is used to avoid the electronic components of the circuit board.

4. The tool according to claim 2, characterized in that A second limiting protrusion and / or a second avoiding groove is provided on the side of the clamping plate facing the limiting plate, wherein the second limiting protrusion is used to abut against the limiting plate, and the second avoiding groove is used to avoid the part of the vertical connector being forced to remain outside the limiting plate.

5. The tool according to claim 2, characterized in that The clamping plate includes a positioning plane facing the limiting plate and at least one positioning boss arranged on the positioning plane, the positioning plane is used to abut and position a part of the plurality of vertical connectors, and at least one positioning boss is used to abut and position the remaining part of the plurality of vertical connectors.

6. The tool according to claim 2, characterized in that The tool also includes a magnetic lock, which includes a first magnetic component disposed on the carrier plate and protruding toward the clamping plate, and a second magnetic component disposed on the clamping plate and mutually attracted to the first magnetic component, wherein one of the first magnetic component and the second magnetic component is a magnetic material, and the other of the first magnetic component and the second magnetic component is a magnetic material or a magnetizable material.

7. The tool according to claim 2, characterized in that At least one overlapping boss is provided on the carrying plate, and the overlapping boss is used to carry the horizontal connector installed in the corresponding preset position of the circuit board body, so as to cooperate with the limiting plate and jointly clamp the horizontal connector.

8. The tool according to claim 2, characterized in that The tool also includes a pallet having a first area and a second area and a pivot structure arranged on the pallet and located at the intersection of the first area and the second area. The supporting plate is arranged on the pallet through the pivot structure. When the supporting plate carrying the limiting plate and the pressing plate is flipped to be completely located in the first area, the supporting plate is closer to the pallet than the limiting plate and the pressing plate, and the supporting plate abuts against a first pad fixedly provided in the first area of ​​the pallet. When the supporting plate carrying the limiting plate and the pressing plate is flipped to be completely located in the second area, the pressing plate is closer to the pallet than the limiting plate and the supporting plate, and the pressing plate abuts against a second pad fixedly provided in the second area of ​​the pallet.

9. The tool according to claim 8, characterized in that The tool also includes a supporting structure, which includes a base, a support rod arranged on the base, and a ball joint structure arranged on the support rod and used to connect the support plate. The support plate rotates relative to the base and the support rod with the support of the ball joint structure.

10. The tool according to claim 9, characterized in that The tool also includes a locking mechanism, the locking mechanism comprising: A sliding rod, which is inserted into the support rod and can abut against the ball joint structure; A through hole is opened in the support rod along the radial direction of the support rod, and the hole wall includes a first conical surface and a second conical surface symmetrical about the central axis of the support rod; An extrusion ring, which is arranged inside the first conical surface and has a third conical surface matching the first conical surface; An extrusion screw, comprising a head disposed in the second conical surface and having a fourth conical surface matched with the second conical surface, and a screw connected to the head and passing through the extrusion ring; An adjusting nut, which is arranged outside the support rod and cooperates with the screw rod; When the adjusting nut is rotated and approaches the head of the extrusion screw, the head of the extrusion screw and the extrusion ring move toward each other in the through hole, and the sliding rod is pushed to apply pressure to the ball head of the ball joint structure through the first inclined push surface provided at the head of the extrusion screw and the second inclined push surface provided at the end of the extrusion ring, so as to increase the friction force of the ball head in the ball socket of the ball joint structure; When the adjusting nut is rotated and moves away from the head of the pressing screw, the first and second tapered surfaces of the through hole sequentially guide the pressing ring and the head of the pressing screw to move away from each other via the third and fourth tapered surfaces.

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