Circuit board positioning tool and positioning method

Abstract

The invention provides a circuit board positioning tool and a positioning method. The positioning tool comprises a bearing seat, a positioning supporting assembly and a positioning cover plate. A positioning groove for accommodating a circuit board is formed in the first surface of the bearing seat; the positioning and supporting assembly comprises a plurality of positioning columns, and the positions of the positioning columns correspond to the distribution positions of to-be-welded components on the circuit board; the positioning cover plate is hinged to the first surface; the first end of the positioning column can penetrate through a process hole in the circuit board to abut against the bottom of a to-be-welded component, and the positioning cover plate can be turned over to cover the positioning groove and press the top of the to-be-welded component. Based on the technical scheme, the positioning supporting assembly is matched with the positioning cover plate, the to-be-welded component can be clamped in the direction perpendicular to the circuit board, then the position, height and placement posture of the to-be-welded component relative to the circuit board can be accurately positioned, manual intervention is not needed, and the welding efficiency is improved. And the efficiency and the quality of subsequent welding operation are effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of tooling and fixtures, and in particular to a circuit board positioning tool and a positioning method. Background Art

[0002] At present, in the production process of the air conditioner outdoor unit mainboard, due to the production process requirements, the mainboard components need to be welded and fixed and connected to the mainboard circuit, which requires the components to be accurately and stably positioned on the mainboard before welding. However, due to the limitations of their own structure, some components cannot be stably positioned on the mainboard before welding, thus affecting the welding process. For example, some components with single-row bent pins cannot be stably placed and positioned on the mainboard if they only have pins on one side.

[0003] Therefore, since these components cannot be directly positioned and effectively supported during welding, they are prone to collapse after placement, making welding impossible. Manual intervention is required to insert and straighten them to assist welding operations, which seriously affects production quality and efficiency. Summary of the invention

[0004] In order to solve the problem that some components cannot be stably positioned on a mainboard during welding of existing circuit boards, the present invention proposes a circuit board positioning tool and a positioning method.

[0005] In a first aspect, the present invention provides a circuit board positioning tool, which includes:

[0006] A bearing seat, wherein a positioning groove for accommodating a circuit board is configured on a first surface of the bearing seat;

[0007] A positioning support assembly, comprising a plurality of positioning posts arranged on one side of the bottom of the positioning groove, wherein the first ends of the positioning posts are located in the positioning grooves, and the positions of the positioning posts correspond to the distribution positions of the components to be soldered on the circuit board; and

[0008] A positioning cover plate, which is hinged to the first surface of the bearing seat;

[0009] The first end of the positioning column can pass through the process hole on the circuit board and abut the bottom of the component to be welded, and the positioning cover plate can be flipped over to cover the top of the positioning groove and press the top of the component to be welded.

[0010] In one embodiment, the positioning groove extends from the first surface of the bearing seat to the second surface opposite to the first surface, and a positioning step for supporting the edge of the circuit board is constructed on the groove wall of the positioning groove, and the step surface of the positioning step faces the first surface.

[0011] In one embodiment, the positioning support assembly further includes a support member, the support member spans the positioning slot and both ends of the support member are fixed to the second surface of the bearing seat, and the second end of the positioning column is fixed to the support member.

[0012] In one embodiment, the positioning column includes a column body and an elastic ejector pin, one end of the elastic ejector pin is inserted into the column body, and the other end of the elastic ejector pin is configured to abut against the bottom of the component to be welded.

[0013] In one embodiment, a protruding tip portion is configured at the center of the first end surface of the positioning column, and the tip portion is configured to be inserted into the positioning hole on the component to be welded when the first end of the positioning column abuts against the bottom of the component to be welded.

[0014] In one embodiment, the positioning cover includes a connecting portion that can contact the first surface when covering the top of the positioning groove, and a magnetic attraction member is embedded in a corresponding position on the first surface, and the magnetic attraction member is constructed to be magnetically attracted to the connecting portion.

[0015] In one embodiment, the positioning cover includes a positioning portion corresponding to the circuit board when covering the top of the positioning groove, the surface of the positioning portion can abut the top of the component to be welded, and a protrusion that can abut the circuit board is also constructed on the surface of the positioning portion.

[0016] In one embodiment, it further comprises:

[0017] A limiting assembly, which is arranged on the first surface of the bearing seat at a position adjacent to the edge of the positioning groove, and the limiting assembly includes a limiting member capable of extending and retracting in a direction parallel to the first surface;

[0018] Wherein, the first end of the limiting member can extend toward the direction close to the positioning groove so as to go over the edge of the positioning groove and buckle on the edge of the circuit board.

[0019] In one embodiment, the limit assembly also includes a limit seat fixed to the first surface of the bearing seat, the limit member is slidably disposed in the limit seat, and a pre-tightened elastic member is disposed between the second end of the limit member and the limit seat, and the elastic member is constructed to maintain the extended state of the first end of the limit member.

[0020] In one embodiment, a through hole corresponding to the second end of the limiting member is formed on the bearing seat, the through hole runs through the first surface of the bearing seat to the second surface opposite to the first surface, the second end of the limiting member is configured with a transmission part that fits in the through hole, and the side surface of the transmission part is configured as an inclined surface;

[0021] Wherein, the positioning tool further includes a lifting component corresponding to the second surface of the bearing seat, and the lifting component is configured to abut against the inclined surface during lifting to drive the first end of the limiting member to retract.

[0022] In one embodiment, the shape and size of the positioning groove match the shape and size of the circuit board, and the depth of the positioning groove is configured so that the surface of the circuit board placed in the positioning groove is flush with the first surface of the bearing seat.

[0023] In a second aspect, the present invention proposes a positioning method using the above-mentioned positioning tool for positioning, which comprises the following steps:

[0024] Flipping the positioning cover plate hinged on the bearing seat of the positioning tool to one side of the positioning slot constructed on the bearing seat to open the positioning slot;

[0025] Put the circuit board into the positioning groove, make the positioning post with one end located in the positioning groove correspond to the process hole on the circuit board, and make the positioning post pass through the corresponding process hole;

[0026] Placing each component to be welded at a corresponding position on the circuit board, inserting each bent pin of the component to be welded into a corresponding welding hole on the circuit board, and making the bottom of the component to be welded abut against the corresponding positioning column to be supported;

[0027] The positioning cover plate is flipped over to cover the positioning groove to press the components to be welded.

[0028] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0029] Compared with the prior art, the circuit board positioning tool and positioning method provided by the present invention have at least the following beneficial effects:

[0030] A circuit board positioning tool and positioning method of the present invention utilizes the cooperation of a positioning support assembly and a positioning cover plate to clamp components to be welded in a direction perpendicular to the circuit board, thereby accurately positioning the position, height and placement posture of the components to be welded relative to the circuit board without manual intervention, thereby effectively ensuring the efficiency and quality of subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0032] Figure 1 A schematic diagram showing the structure of the positioning tool of the present invention is shown;

[0033] Figure 2 A schematic diagram showing the structure of the positioning tool of the present invention after being placed in a circuit board;

[0034] Figure 3 Shows Figure 2 A schematic diagram of the back of the structure shown;

[0035] Figure 4 A schematic structural diagram showing a positioning support assembly of a positioning tool of the present invention;

[0036] Figure 5 A three-dimensional diagram showing a limiting member of a limiting assembly of a positioning tool of the present invention;

[0037] Figure 6 A front view showing a limiting member of a limiting assembly of a positioning tool of the present invention;

[0038] Figure 7 A schematic structural diagram of the lifting assembly of the positioning tool of the present invention is shown.

[0039] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0040] Reference numerals:

[0041] 10-bearing seat, 101-first surface, 102-second surface, 11-positioning groove, 111-positioning step, 12-magnetic element, 13-grabbing groove, 14-through hole, 15-bearing seat, 20-positioning support assembly, 21-positioning column, 211-column, 212-elastic ejector pin, 213-tip portion, 22-support member, 30-positioning cover plate, 31-connecting portion, 32-positioning portion, 321-protrusion, 40-limiting assembly, 41-limiting member, 411-transmission portion, 412-inclined surface, 413-assembly groove, 42-limiting seat, 43-elastic member, 50-lifting assembly, 51-elastic ejector rod, 52-connecting plate, 53-cylinder, 60-circuit board, 61-process hole, 70-components to be welded, 71-positioning hole. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings.

[0043] Example 1

[0044] The embodiment of the present invention provides a circuit board positioning tool, which includes a bearing seat 10, a positioning support assembly 20 and a positioning cover plate 30. A positioning groove 11 for accommodating a circuit board 60 is constructed on the first surface 101 of the bearing seat 10; the positioning support assembly 20 includes a plurality of positioning columns 21 arranged on one side where the bottom of the positioning groove 11 is located, the first end of the positioning column 21 is located in the positioning groove 11, and the position of the positioning column 21 corresponds to the distribution position of the components 70 to be welded on the circuit board 60; the positioning cover plate 30 is hinged to the first surface 101 of the bearing seat 10.

[0045] The first end of the positioning column 21 can pass through the process hole 61 on the circuit board 60 to abut against the bottom of the component to be welded 70, and the positioning cover 30 can be flipped over to cover the top of the positioning groove 11 and press the top of the component to be welded 70.

[0046] Specifically, as described in the background art, the positioning tool of the present invention is mainly used to solve the problem of pre-positioning the components 70 to be welded on the circuit board 60 to ensure the accuracy and quality of subsequent welding. The positioning of the components 70 to be welded on the circuit board 60 mentioned here includes the positioning of the position of the components 70 to be welded on the circuit board 60, the positioning of the height of the components 70 to be welded relative to the circuit board 60, and the positioning of the placement posture of the components 70 to be welded.

[0047] Refer to the attached pictures Figures 1 to 3 The positioning tool of the present invention first includes a bearing seat 10 as a structural basis, and a positioning groove 11 is constructed on the bearing seat 10. The circuit board 60 can be placed in the positioning groove 11, so as to first position the circuit board 60 itself. Among them, the specific structure of the bearing seat 10 of the positioning tool can be selected according to actual needs. For example, in this embodiment, in order to facilitate the positioning tool to cooperate with the welding assembly line for circulation and adapt to the general structure of the circuit board 60, the bearing seat 10 is overall constructed as a plate-like structure similar to the circuit board 60, that is, to meet the placement requirements of the circuit board 60, and also to minimize the volume and weight, which is convenient for circulation.

[0048] The bearing seat 10 is provided with a positioning support assembly 20 and a positioning cover plate 30, which are used to cooperate with each other to position the components 70 to be welded that need to be assembled on the circuit board 60. Among them, the positioning support assembly 20 includes a plurality of positioning columns 21, and the positioning columns 21 are arranged on the side where the bottom of the positioning groove 11 is located. Here, there are two optional implementations, namely, directly setting the positioning columns 21 on the bottom of the groove in the positioning groove 11 and setting the positioning columns 21 outside the positioning groove 11 and close to the side of the bottom of the positioning groove 11. Regardless of which implementation is adopted, the first end of the positioning column 21 is located in the positioning groove 11, wherein for the method of setting the positioning column 21 outside the positioning groove 11, the first end of the positioning column 21 can pass through the bottom of the positioning groove 11 and enter the positioning groove 11. The positioning cover plate 30 is hinged to the first surface 101 of the bearing seat 10 and the hinge point is close to the edge of the positioning groove 11, so that the positioning cover plate 30 can be covered on the positioning groove 11 by flipping, or can be flipped away from the positioning groove 11 and flipped to one side of the positioning groove 11.

[0049] Specifically, when in use, first flip the positioning cover 30 to one side of the positioning slot 11 so that the notch portion of the positioning slot 11 is fully opened, and then place the circuit board 60 into the positioning slot 11. After the circuit board 60 is placed into the positioning slot 11, the circuit board 60 is located above the entire positioning support assembly 20, and the first end of the positioning column 21 of the positioning support assembly 20 passes through the corresponding process hole 61 on the circuit board 60 (the process hole 61 is pre-processed at the welding position corresponding to the component 70 to be welded on the circuit board 60). Then, the component 70 to be welded is loaded into the circuit board 60, wherein the bent pins of the component 70 to be welded are inserted into the corresponding welding holes on the circuit board 60, that is, the component 70 to be welded is inserted, as shown in the accompanying drawings. Figure 2 As shown, after the insertion is completed, the main body of the component 70 to be welded is located above the process hole 61, so the bottom of the component 70 to be welded is in contact with the first end of the positioning column 21 passing through the process hole 61. At this time, the component 70 to be welded is effectively supported by the positioning column 21, and its position, height and placement posture relative to the circuit board 60 are guaranteed. Finally, the positioning cover plate 30 is flipped to cover the positioning groove 11. The flipped positioning cover plate 30 partially covers the local area of ​​the positioning groove 11, that is, the area where the multiple components 70 to be welded are located as a whole. Therefore, the positioning cover plate 30 can press the top of the component 70 to be welded, thereby cooperating with the positioning column 21 to clamp the component 70 to be welded in the direction perpendicular to the circuit board 60, and then the position, height and placement posture of the component 70 to be welded relative to the circuit board 60 can be accurately positioned. The circuit board 60 positioned by the positioning tool can be placed in the welding line together with the component 70 to be welded with the positioning tool, and transferred to the welding process through the welding line.

[0050] It should be noted that, for components 70 to be welded with a larger area, multiple process holes 61 and positioning columns 21 can be provided accordingly for multi-point support and positioning. In addition, all steps in the practical application of the positioning tool of the present invention, including opening the positioning cover plate 30, inserting the components 70 to be welded, and closing the positioning cover plate 30, can be fully automatically performed by corresponding manipulators.

[0051] The positioning tool of the present invention, by utilizing the cooperation between the positioning support assembly 20 and the positioning cover plate 30, can clamp the components 70 to be welded in a direction perpendicular to the circuit board 60, and can thereby accurately position the position, height and placement posture of the components 70 to be welded relative to the circuit board 60 without the need for manual intervention, thereby effectively ensuring the efficiency and quality of subsequent welding operations.

[0052] Furthermore, the shape and size of the positioning groove 11 match the shape and size of the circuit board 60 , and the depth of the positioning groove 11 is configured so that the surface of the circuit board 60 placed in the positioning groove 11 is flush with the first surface 101 of the supporting seat 10 .

[0053] Specifically, as shown in the attached figure Figure 2 As shown, after the circuit board 60 is placed in the positioning groove 11, the positioning groove 11 can be filled, so that the circuit board 60 can be ensured not to be offset in the positioning groove 11, creating favorable conditions for the positioning of the components 70 to be welded later. Preferably, a grabbing groove 13 is provided on the first surface 101 of the bearing seat 10 at the edges of the two sides of the positioning groove 11 opposite to each other, and the grabbing groove 13 is connected to the positioning groove 11 from the side of the positioning groove 11 and corresponds to the side of the circuit board 60. The grabbing groove 13 is provided to facilitate the manipulator or the operator's hand to clamp the circuit board 60 from both sides, and then take the circuit board 60 out of the positioning groove 11.

[0054] Optionally, the height of the bottom of the grasping groove 13 is lower than the height of the bottom surface of the circuit board 60 placed in the positioning groove 11; preferably, the height difference between the two is 2mm to 5mm; this allows the robot or the operator's hand to further buckle on the edge of the bottom surface of the circuit board 60 through the grasping groove 13 when grasping the circuit board 60, thereby improving the stability of grasping.

[0055] Furthermore, the positioning cover 30 includes a connecting portion 31 that can contact the first surface 101 when covering the top of the positioning groove 11 , and a magnetic attraction member 12 is embedded at a corresponding position on the first surface 101 , and the magnetic attraction member 12 is configured to be magnetically attracted to the connecting portion 31 .

[0056] In addition, the positioning cover 30 also includes a positioning portion 32 corresponding to the circuit board 60 when covering the top of the positioning groove 11. The surface of the positioning portion 32 can abut the top of the component to be welded 70. The surface of the positioning portion 32 is also constructed with a protrusion 321 that can abut the circuit board 60.

[0057] Specifically, as shown in the attached figure Figure 1 and Figure 2 As shown, one side of the positioning cover 30 is hinged to the first surface 101 of the bearing seat 10, specifically, it is engaged with the bearing seat 15 on the first surface 101 of the bearing seat 10 through a bearing. When the positioning cover 30 is flipped over to cover the top of the positioning groove 11, it has a positioning portion 32 corresponding to the positioning groove 11 (that is, corresponding to the circuit board 60 placed in the positioning groove 11) and a connecting portion 31 corresponding to the bearing seat 10, wherein the connecting portion 31 is in contact with the first surface 101 of the bearing seat 10, and the positioning portion 32 is in contact with the top of the component 70 to be welded. In addition, a protrusion 321 capable of abutting the circuit board 60 is further provided at the positioning portion 32, so that the positioning portion 32 can simultaneously assist in positioning the circuit board 60. A magnetic suction component 12 is embedded on the first surface 101 of the bearing seat 10, as shown in the accompanying drawings. Figure 1 and Figure 2 As shown, it can be magnetically attracted to the connecting portion 31 , thereby maintaining the stability of the state in which the positioning cover 30 covers the positioning groove 11 , and the positioning portion 32 presses the component 70 to be welded by magnetic attraction.

[0058] In addition, the magnetic attraction between the magnetic attraction member 12 and the connecting portion 31 in this embodiment can be that the magnetic attraction member 12 is a magnet and the connecting portion 31 is a metal that can be attracted to the magnet, or that the connecting portion 31 is a magnet and the magnetic attraction member 12 is a metal that can be attracted to the magnet. Preferably, in order to facilitate the integrated manufacturing of the positioning cover 30, the connecting portion 31 and even the entire positioning cover 30 are made of metal that can be attracted to the magnet instead of a magnet, because in the integrated manufacturing process, if the connecting portion 31 is a magnet, then the positioning portion 32 will also be a magnet, which will cause the positioning portion 32 to have an adverse effect on the component 70 to be welded due to magnetism when it contacts the component 70 to be welded.

[0059] At the same time, it should be noted that the attached drawings Figure 1 and Figure 2 The actual structure of the positioning cover plate 30, including the structure and shape of the protrusion 321, is slightly different because Figure 1 and Figure 2 These are two different actual implementation structures of the positioning cover plate 30, but their principle structures are the same.

[0060] Example 2

[0061] The embodiment of the present invention provides a circuit board positioning tool, which includes a bearing seat 10, a positioning support assembly 20 and a positioning cover plate 30. A positioning groove 11 for accommodating a circuit board 60 is constructed on the first surface 101 of the bearing seat 10; the positioning support assembly 20 includes a plurality of positioning columns 21 arranged on one side where the bottom of the positioning groove 11 is located, the first end of the positioning column 21 is located in the positioning groove 11, and the position of the positioning column 21 corresponds to the distribution position of the components 70 to be welded on the circuit board 60; the positioning cover plate 30 is hinged to the first surface 101 of the bearing seat 10.

[0062] The first end of the positioning column 21 can pass through the process hole 61 on the circuit board 60 to abut against the bottom of the component to be welded 70, and the positioning cover 30 can be flipped over to cover the top of the positioning groove 11 and press the top of the component to be welded 70.

[0063] Specifically, as described in the background art, the positioning tool of the present invention is mainly used to solve the problem of pre-positioning the components 70 to be welded on the circuit board 60 to ensure the accuracy and quality of subsequent welding. The positioning of the components 70 to be welded on the circuit board 60 mentioned here includes the positioning of the position of the components 70 to be welded on the circuit board 60, the positioning of the height of the components 70 to be welded relative to the circuit board 60, and the positioning of the placement posture of the components 70 to be welded.

[0064] Refer to the attached pictures Figures 1 to 3 The positioning tool of the present invention first includes a bearing seat 10 as a structural basis, and a positioning groove 11 is constructed on the bearing seat 10. The circuit board 60 can be placed in the positioning groove 11, so as to first position the circuit board 60 itself. Among them, the specific structure of the bearing seat 10 of the positioning tool can be selected according to actual needs. For example, in this embodiment, in order to facilitate the positioning tool to cooperate with the welding assembly line for circulation and adapt to the general structure of the circuit board 60, the bearing seat 10 is overall constructed as a plate-like structure similar to the circuit board 60, that is, to meet the placement requirements of the circuit board 60, and also to minimize the volume and weight, which is convenient for circulation.

[0065] The bearing seat 10 is provided with a positioning support assembly 20 and a positioning cover plate 30, which are used to cooperate with each other to position the components 70 to be welded that need to be assembled on the circuit board 60. Among them, the positioning support assembly 20 includes a plurality of positioning columns 21, and the positioning columns 21 are arranged on the side where the bottom of the positioning groove 11 is located. Here, there are two optional implementations, namely, directly setting the positioning columns 21 on the bottom of the groove in the positioning groove 11 and setting the positioning columns 21 outside the positioning groove 11 and close to the side of the bottom of the positioning groove 11. Regardless of which implementation is adopted, the first end of the positioning column 21 is located in the positioning groove 11, wherein for the method of setting the positioning column 21 outside the positioning groove 11, the first end of the positioning column 21 can pass through the bottom of the positioning groove 11 and enter the positioning groove 11. The positioning cover plate 30 is hinged to the first surface 101 of the bearing seat 10 and the hinge point is close to the edge of the positioning groove 11, so that the positioning cover plate 30 can be covered on the positioning groove 11 by flipping, or can be flipped away from the positioning groove 11 and flipped to one side of the positioning groove 11.

[0066] Specifically, when in use, first flip the positioning cover 30 to one side of the positioning slot 11 so that the notch portion of the positioning slot 11 is fully opened, and then place the circuit board 60 into the positioning slot 11. After the circuit board 60 is placed into the positioning slot 11, the circuit board 60 is located above the entire positioning support assembly 20, and the first end of the positioning column 21 of the positioning support assembly 20 passes through the corresponding process hole 61 on the circuit board 60 (the process hole 61 is pre-processed at the welding position corresponding to the component 70 to be welded on the circuit board 60). Then, the component 70 to be welded is loaded into the circuit board 60, wherein the bent pins of the component 70 to be welded are inserted into the corresponding welding holes on the circuit board 60, that is, the component 70 to be welded is inserted, as shown in the accompanying drawings. Figure 2 As shown, after the insertion is completed, the main body of the component 70 to be welded is located above the process hole 61, so the bottom of the component 70 to be welded is in contact with the first end of the positioning column 21 passing through the process hole 61. At this time, the component 70 to be welded is effectively supported by the positioning column 21, and its position, height and placement posture relative to the circuit board 60 are guaranteed. Finally, the positioning cover plate 30 is flipped to cover the positioning groove 11. The flipped positioning cover plate 30 partially covers the local area of ​​the positioning groove 11, that is, the area where the multiple components 70 to be welded are located as a whole. Therefore, the positioning cover plate 30 can press the top of the component 70 to be welded, thereby cooperating with the positioning column 21 to clamp the component 70 to be welded in the direction perpendicular to the circuit board 60, and then the position, height and placement posture of the component 70 to be welded relative to the circuit board 60 can be accurately positioned. The circuit board 60 positioned by the positioning tool can be placed in the welding line together with the component 70 to be welded with the positioning tool, and transferred to the welding process through the welding line.

[0067] It should be noted that, for components 70 to be welded with a larger area, multiple process holes 61 and positioning columns 21 can be provided accordingly for multi-point support and positioning. In addition, all steps in the practical application of the positioning tool of the present invention, including opening the positioning cover plate 30, inserting the components 70 to be welded, and closing the positioning cover plate 30, can be fully automatically performed by corresponding manipulators.

[0068] The positioning tool of the present invention, by utilizing the cooperation between the positioning support assembly 20 and the positioning cover plate 30, can clamp the components 70 to be welded in a direction perpendicular to the circuit board 60, and can thereby accurately position the position, height and placement posture of the components 70 to be welded relative to the circuit board 60 without the need for manual intervention, thereby effectively ensuring the efficiency and quality of subsequent welding operations.

[0069] Furthermore, the shape and size of the positioning groove 11 match the shape and size of the circuit board 60 , and the depth of the positioning groove 11 is configured so that the surface of the circuit board 60 placed in the positioning groove 11 is flush with the first surface 101 of the supporting seat 10 .

[0070] Specifically, as shown in the attached figure Figure 2 As shown, after the circuit board 60 is placed in the positioning groove 11, the positioning groove 11 can be filled, so that the circuit board 60 can be ensured not to be offset in the positioning groove 11, creating favorable conditions for the positioning of the components 70 to be welded later. Preferably, a grabbing groove 13 is provided on the first surface 101 of the bearing seat 10 at the edges of the two sides of the positioning groove 11 opposite to each other, and the grabbing groove 13 is connected to the positioning groove 11 from the side of the positioning groove 11 and corresponds to the side of the circuit board 60. The grabbing groove 13 is provided to facilitate the manipulator or the operator's hand to clamp the circuit board 60 from both sides, and then take the circuit board 60 out of the positioning groove 11.

[0071] Optionally, the height of the bottom of the grasping groove 13 is lower than the height of the bottom surface of the circuit board 60 placed in the positioning groove 11; preferably, the height difference between the two is 2mm to 5mm; this allows the robot or the operator's hand to further buckle on the edge of the bottom surface of the circuit board 60 through the grasping groove 13 when grasping the circuit board 60, thereby improving the stability of grasping.

[0072] Furthermore, the positioning cover 30 includes a connecting portion 31 that can contact the first surface 101 when covering the top of the positioning groove 11 , and a magnetic attraction member 12 is embedded at a corresponding position on the first surface 101 , and the magnetic attraction member 12 is configured to be magnetically attracted to the connecting portion 31 .

[0073] In addition, the positioning cover 30 also includes a positioning portion 32 corresponding to the circuit board 60 when covering the top of the positioning groove 11. The surface of the positioning portion 32 can abut the top of the component to be welded 70. The surface of the positioning portion 32 is also constructed with a protrusion 321 that can abut the circuit board 60.

[0074] Specifically, as shown in the attached figure Figure 1 and Figure 2 As shown, one side of the positioning cover 30 is hinged to the first surface 101 of the bearing seat 10, specifically, it is engaged with the bearing seat 15 on the first surface 101 of the bearing seat 10 through a bearing. When the positioning cover 30 is flipped over to cover the top of the positioning groove 11, it has a positioning portion 32 corresponding to the positioning groove 11 (that is, corresponding to the circuit board 60 placed in the positioning groove 11) and a connecting portion 31 corresponding to the bearing seat 10, wherein the connecting portion 31 is in contact with the first surface 101 of the bearing seat 10, and the positioning portion 32 is in contact with the top of the component 70 to be welded. In addition, a protrusion 321 capable of abutting the circuit board 60 is further provided at the positioning portion 32, so that the positioning portion 32 can simultaneously assist in positioning the circuit board 60. A magnetic suction component 12 is embedded on the first surface 101 of the bearing seat 10, as shown in the accompanying drawings. Figure 1 and Figure 2 As shown, it can be magnetically attracted to the connecting portion 31 , thereby maintaining the stability of the state in which the positioning cover 30 covers the positioning groove 11 , and the positioning portion 32 presses the component 70 to be welded by magnetic attraction.

[0075] In addition, the magnetic attraction between the magnetic attraction member 12 and the connecting portion 31 in this embodiment can be that the magnetic attraction member 12 is a magnet and the connecting portion 31 is a metal that can be attracted to the magnet, or that the connecting portion 31 is a magnet and the magnetic attraction member 12 is a metal that can be attracted to the magnet. Preferably, in order to facilitate the integrated manufacturing of the positioning cover 30, the connecting portion 31 and even the entire positioning cover 30 are made of metal that can be attracted to the magnet instead of a magnet, because in the integrated manufacturing process, if the connecting portion 31 is a magnet, then the positioning portion 32 will also be a magnet, which will cause the positioning portion 32 to have an adverse effect on the component 70 to be welded due to magnetism when it contacts the component 70 to be welded.

[0076] At the same time, it should be noted that the attached drawings Figure 1 and Figure 2 The actual structure of the positioning cover plate 30, including the structure and shape of the protrusion 321, is slightly different because Figure 1 and Figure 2 These are two different actual implementation structures of the positioning cover plate 30, but their principle structures are the same.

[0077] Furthermore, the positioning groove 11 extends from the first surface 101 of the supporting base 10 to the second surface 102 opposite to the first surface 101 , and a positioning step 111 for supporting the edge of the circuit board 60 is constructed at the groove wall of the positioning groove 11 , and the step surface of the positioning step 111 faces the first surface 101 .

[0078] Specifically, as shown in the attached figure Figure 1 As shown, in this embodiment, the positioning groove 11 adopts a structure that penetrates the bearing seat 10, that is, the positioning groove 11 has no substantial groove bottom. The purpose of this design is to make the front and back sides of the circuit board 60 exposed when the circuit board 60 is placed in the positioning groove 11, so as to facilitate the subsequent welding operation of the circuit board 60 and the components 70 to be welded. Based on this structure, in order to ensure the stable placement of the circuit board 60 in the positioning groove 11, positioning steps 111 are constructed on the groove walls around the positioning groove 11, and the edges of the circuit board 60 are supported by the positioning steps 111, so that the circuit board 60 is stably placed in the positioning groove 11.

[0079] Furthermore, the positioning support assembly 20 further includes a support member 22 , which spans the positioning slot 11 and has two ends fixed to the second surface 102 of the bearing seat 10 , and a second end of the positioning column 21 is fixed to the support member 22 .

[0080] Specifically, as shown in the attached figure Figure 1 and Figure 3 As shown, based on the through structure adopted by the positioning groove 11 without a substantial groove bottom, the positioning column 21 cannot be directly set on the groove bottom of the positioning groove 11. Therefore, a support member 22 spanning the positioning groove 11 is set on the side where the groove bottom of the positioning groove 11 is originally located, that is, on the second surface 102 of the supporting seat 10, and the positioning column 21 is set on the support member 22, so that the first end of the positioning column 21 can directly extend into the positioning groove 11.

[0081] In addition, in order to expose both back sides of the circuit board 60 to the outside to the greatest extent and facilitate welding, the area of ​​the support member 22 needs to be as small as possible. Therefore, the support member 22 is constructed as a strip structure with a width as small as possible, and its width is sufficient to meet the setting of the positioning column 21, as shown in the accompanying drawings. Figure 4 In addition, the trend of the strip structure of the support member 22 matches the arrangement path of the components 70 to be soldered on the circuit board 60, as shown in the accompanying drawings Figure 3 shown.

[0082] Furthermore, the positioning column 21 includes a column body 211 and an elastic ejector pin 212 , one end of the elastic ejector pin 212 is inserted into the column body 211 , and the other end of the elastic ejector pin 212 is configured to abut against the bottom of the component 70 to be welded.

[0083] Specifically, as shown in the attached figure Figure 1 and Figure 4As shown, the positioning column 21 structurally includes two parts, one part is a fixed column 211 (for example, fixed on the support member 22), and the other part is an elastic ejector pin 212 partially inserted into the column 211. The column 211 and the elastic ejector pin 212 together form a positioning column 21 with adjustable support height. For components 70 to be welded with different thicknesses, when they are uniformly pressed by the positioning cover plate 30, the top heights of the components 70 to be welded are the same. Based on the different thicknesses, the bottom heights of the components 70 to be welded are different, which requires the positioning column 21 to provide different support heights. By setting the elastic ejector pin 212, when the positioning cover plate 30 uniformly presses the components 70 to be welded, the elastic ejector pin 212 corresponding to the thicker component 70 to be welded has a larger compression amount, and the elastic ejector pin 212 corresponding to the thinner component 70 to be welded has a smaller compression amount, thereby providing different support heights.

[0084] It should be noted that the elastic ejector pin 212 in the embodiment may adopt an existing structure such as a spring ejector pin, so the specific structural design of the elastic ejector pin 212 is not described in detail in this embodiment, and reference may be made to existing literature.

[0085] Preferably, a protruding tip portion 213 is configured at the center of the first end surface of the positioning column 21 , and the tip portion 213 is configured to be inserted into the positioning hole 71 on the component 70 to be welded when the first end of the positioning column 21 abuts against the bottom of the component 70 to be welded.

[0086] Specifically, as shown in the attached figure Figure 4 As shown, the center of the first end face of the positioning column 21, that is, the center of the end face of the elastic ejector pin 212, is configured with a protruding tip portion 213, the purpose of which is to be inserted from the bottom into the positioning hole 71 on the component 70 to be welded when the positioning column 21 abuts against the component 70 to be welded, as shown in the accompanying drawings Figure 2 As shown, the tip portion 213 is used to position the component 70 to be welded in more directions and has a larger contact area, thereby enhancing the positioning effect and positioning stability.

[0087] Furthermore, it also includes a limit assembly 40, which is arranged on the first surface 101 of the supporting base 10 at a position adjacent to the edge of the positioning groove 11, and the limit assembly 40 includes a limit member 41 that can be extended and retracted in a direction parallel to the first surface 101; wherein the first end of the limit member 41 can extend in a direction close to the positioning groove 11 to cross the edge of the positioning groove 11 and buckle on the edge of the circuit board 60.

[0088] Specifically, as shown in the attached figure Figure 1 and Figure 2As shown, after the circuit board 60 is placed in the positioning groove 11, it can be supported by the positioning groove 11. However, there is no structure on one side of the notch of the positioning groove 11 that can limit the circuit board 60, so there is still a risk that the circuit board 60 will slip out of the positioning groove 11 through the notch of the positioning groove 11. In order to eliminate this risk, in this embodiment, a limiting component 40 adjacent to the edge of the positioning groove 11 is provided on the first surface 101 of the bearing seat 10. When the limiting member 41 in the limiting component 40 is extended, its first end can pass over the edge of the positioning groove 11 and buckle on the edge of the circuit board 60, thereby limiting the circuit board 60 on one side of the notch of the positioning groove 11, eliminating the risk that the circuit board 60 will slip out of the positioning groove 11 through the notch of the positioning groove 11.

[0089] Furthermore, the limit assembly 40 also includes a limit seat 42 fixed to the first surface 101 of the supporting seat 10, the limit member 41 is slidably arranged in the limit seat 42, and a pre-tightened elastic member 43 is arranged between the second end of the limit member 41 and the limit seat 42, and the elastic member 43 is constructed to maintain the extended state of the first end of the limit member 41.

[0090] Specifically, as shown in the attached figure Figure 1 As shown, the limit member 41 is installed in the limit seat 42, that is, the limit seat 42 is provided with a telescopic channel parallel to the first surface 101 of the bearing seat 10 for installing the limit member 41, and the second end of the limit member 41 is located in the telescopic channel, and an elastic member 43 (a spring is used in this embodiment) is provided between the second end of the limit member 41 and the limit seat 42 (that is, the end of the telescopic channel). The elastic member 43 is provided with a pre-tightening elastic force, which can drive the limit member 41 to extend out of the telescopic channel, that is, the first end of the limit member 41 can be maintained in the extended state, thereby ensuring the limiting function of the circuit board 60. When the circuit board 60 needs to be placed in or taken out, the first end of the limit member 41 can be retracted by pressing the first end of the limit member 41 or by pulling the second end of the limit member 41 to release the limiting state.

[0091] In addition, as shown in the attached figure Figure 6 As shown, a mounting groove 413 for accommodating one end of the elastic member 43 is provided on the end surface of the second end of the limiting member 41 .

[0092] Furthermore, a through hole 14 corresponding to the second end of the limiting member 41 is opened on the bearing seat 10, and the through hole 14 passes through the first surface 101 of the bearing seat 10 to the second surface 102 opposite to the first surface 101. The second end of the limiting member 41 is constructed with a transmission part 411 that fits in the through hole 14, and the side of the transmission part 411 is set as a slope 412; wherein, the positioning tool also includes a jacking component 50 corresponding to the second surface 102 of the bearing seat 10, and the jacking component 50 is constructed to be able to abut the slope 412 during jacking to drive the first end of the limiting member 41 to retract.

[0093] Specifically, it is mentioned above that the first end of the limiter 41 can be retracted to release the limit state by pressing the first end of the limiter 41 or by pulling the second end of the limiter 41. This embodiment further realizes automatic control of the limiter 41 by pulling the second end of the limiter 41 through structural design.

[0094] As shown in the attached picture Figure 3 and Figure 5 As shown, a protruding transmission part 411 is constructed on the side surface of the second end of the limiting member 41 (specifically, the side surface facing the first surface 101 of the bearing seat 10), and the transmission part 411 is matched in the through hole 14 penetrating the bearing seat 10. As required, the end of the transmission part 411 can also pass through the through hole 14 and protrude from the second surface 102 of the bearing seat 10. The side surface of the transmission part 411 facing the positioning groove 11 is configured as an inclined surface 412, and the inclined surface 412 can cooperate with the lifting component 50 corresponding to the second surface 102 of the bearing seat 10 (that is, it is arranged below the second surface 102 of the bearing seat 10). When the lifting component 50 is lifted, its top can abut and squeeze the inclined surface 412 of the transmission part 411, so that the lifting motion is converted into the direction of the limiting member 41 to contract in the direction away from the positioning groove 11 through the inclined surface 412, so that the first end of the limiting member 41 can be driven to retract.

[0095] It should be noted that, since the transmission part 411 will move synchronously in the through hole 14 with the extension and contraction of the limiter 41, the through hole 14 needs to be set as a long hole extending along the extension and contraction direction of the limiter 41, as shown in the accompanying drawings. Figure 3 As shown, a movement space is provided for the movement of the transmission part 411.

[0096] In addition, the lifting assembly 50 includes a topmost push rod 51, which is vertically fixed to a connecting plate 52, and the connecting plate 52 is fixed to the output end of a cylinder 53 serving as a power source, as shown in the accompanying drawings. Figure 7 And as required, a plurality of push rods 51 can be simultaneously arranged on the connecting plate 52, so that a plurality of position limiting members 41 can be synchronously driven to realize synchronous action of a plurality of position limiting components 40.

[0097] Example 3

[0098] An embodiment of the present invention provides a positioning method using the positioning tool of any of the above embodiments for positioning, the method comprising the following steps:

[0099] Step S100: flipping a positioning cover plate hinged on a bearing seat of the positioning tool to one side of a positioning groove constructed on the bearing seat to open the positioning groove;

[0100] Step S200: placing the circuit board into the positioning groove, making the positioning post with one end located in the positioning groove correspond to the process hole on the circuit board, and making the positioning post pass through the corresponding process hole;

[0101] Step S300: placing each component to be welded at a corresponding position on the circuit board, inserting each bent pin of the component to be welded into a corresponding welding hole on the circuit board, and making the bottom of the component to be welded abut against the corresponding positioning column to be supported;

[0102] Step S400: Flip the positioning cover plate over to cover the positioning groove to press the components to be welded.

[0103] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0104] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A circuit board positioning tool, characterized in that: include: A bearing seat, wherein a positioning groove for accommodating a circuit board is configured on a first surface of the bearing seat; A positioning support assembly, comprising a plurality of positioning posts arranged on one side of the bottom of the positioning groove, wherein the first ends of the positioning posts are located in the positioning grooves, and the positions of the positioning posts correspond to the distribution positions of the components to be soldered on the circuit board; and A positioning cover plate, which is hinged to the first surface of the bearing seat; The first end of the positioning column can pass through the process hole on the circuit board and abut the bottom of the component to be welded, and the positioning cover plate can be flipped over to cover the top of the positioning groove and press the top of the component to be welded.

2. The circuit board positioning tool according to claim 1, characterized in that: The positioning groove extends from the first surface of the bearing seat to the second surface opposite to the first surface. A positioning step for supporting the edge of the circuit board is configured on the groove wall of the positioning groove, and the step surface of the positioning step faces the first surface.

3. The circuit board positioning tool according to claim 2, characterized in that: The positioning support assembly also includes a support member, the support member spans the positioning slot and both ends of the support member are fixed to the second surface of the bearing seat, and the second end of the positioning column is fixed to the support member.

4. The circuit board positioning tool according to claim 1, characterized in that: The positioning column comprises a column body and an elastic ejector pin, one end of the elastic ejector pin is inserted into the column body, and the other end of the elastic ejector pin is configured to abut against the bottom of the component to be welded.

5. The circuit board positioning tool according to any one of claims 1 to 4, characterized in that: A protruding tip portion is configured at the center of the first end surface of the positioning column, and the tip portion is configured to be inserted into the positioning hole on the component to be welded when the first end of the positioning column abuts against the bottom of the component to be welded.

6. The circuit board positioning tool according to claim 1, characterized in that: The positioning cover plate includes a connecting portion that can contact the first surface when covering the top of the positioning groove, and a magnetic attraction member is embedded in a corresponding position on the first surface, and the magnetic attraction member is configured to be magnetically attracted to the connecting portion.

7. The circuit board positioning tool according to claim 1 or 6, characterized in that: The positioning cover plate includes a positioning portion corresponding to the circuit board when covering the top of the positioning groove, the surface of the positioning portion can abut the top of the component to be welded, and a protrusion that can abut the circuit board is also constructed on the surface of the positioning portion.

8. The circuit board positioning tool according to claim 1, characterized in that: Also includes: A limiting assembly, which is arranged on the first surface of the bearing seat at a position adjacent to the edge of the positioning groove, and the limiting assembly includes a limiting member capable of extending and retracting in a direction parallel to the first surface; Wherein, the first end of the limiting member can extend toward the direction close to the positioning groove so as to go over the edge of the positioning groove and buckle on the edge of the circuit board.

9. The circuit board positioning tool according to claim 8, characterized in that: The limiting assembly also includes a limiting seat fixed to the first surface of the bearing seat, the limiting member is slidably arranged in the limiting seat, a pre-tightened elastic member is arranged between the second end of the limiting member and the limiting seat, and the elastic member is constructed to maintain the extended state of the first end of the limiting member.

10. The circuit board positioning tool according to claim 9, characterized in that: The bearing seat is provided with a through hole corresponding to the second end of the limiting member, the through hole runs through the first surface of the bearing seat to the second surface opposite to the first surface, the second end of the limiting member is configured with a transmission part fitted in the through hole, and the side surface of the transmission part is configured as an inclined surface; Wherein, the positioning tool further includes a lifting component corresponding to the second surface of the bearing seat, and the lifting component is configured to abut against the inclined surface during lifting to drive the first end of the limiting member to retract.

11. The circuit board positioning tool according to claim 1, characterized in that: The shape and size of the positioning groove match the shape and size of the circuit board, and the depth of the positioning groove is configured so that the surface of the circuit board placed in the positioning groove is flush with the first surface of the bearing seat.

12. A positioning method using the positioning tool as claimed in any one of claims 1 to 11, characterized in that: The following steps are involved: Flipping the positioning cover plate hinged on the bearing seat of the positioning tool to one side of the positioning slot constructed on the bearing seat to open the positioning slot; Put the circuit board into the positioning groove, make the positioning post with one end located in the positioning groove correspond to the process hole on the circuit board, and make the positioning post pass through the corresponding process hole; Placing each component to be welded at a corresponding position on the circuit board, inserting each bent pin of the component to be welded into a corresponding welding hole on the circuit board, and making the bottom of the component to be welded abut against the corresponding positioning column to be supported; The positioning cover plate is flipped over to cover the positioning groove to press the components to be welded.

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