Multi-contact-pin welding tool

Abstract

The utility model provides a multi-contact-pin welding tool. The multi-contact-pin welding tool comprises a base, a flat plate and a pressing buckle. The front surface of the base is provided with a plurality of hole structures corresponding to contact pins of to-be-welded printed boards in position, and the back surface of the base is provided with sockets matched with the to-be-welded printed boards in number; the flat plate is arranged on the front face of the base and provided with grooves corresponding to the sockets in position and used for containing printed boards to be welded. The pressing buckle is arranged on the flat plate, can rotate along a rotating shaft of the pressing buckle and is used for pressing or loosening the printed board to be welded in the groove. The device is simple in structure, convenient to operate, and capable of effectively and accurately limiting and fixing the contact pin during welding. The printed board is fixed by the elastic component, so that the printed board can be conveniently installed before welding and taken down after welding, and the damage of the elastic component to the printed board is small.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, and particularly relates to a multi-pin welding tooling. Background Art

[0002] With the continuous deepening of the degree of informatization, electronic products have been widely used in military and civilian fields. The core components of the vast majority of electronic products are printed circuit board assemblies, which are composed of printed circuit boards and components. They usually achieve their electrical functions through electrical interconnection by means of soldering with soft solder. Through-hole mounting is the most common mounting method for components on printed circuit boards. The steps for through-hole mounting of components usually include shaping the pins of the components (if necessary), assembling the components onto the printed circuit board according to the technical requirements of the drawing and the process document requirements, and manual soldering.

[0003] The installation of pins on the printed circuit board belongs to through-hole mounting. Usually, the pins should be inserted into the corresponding through-holes on the printed circuit board first. One person holds the printed circuit board, and the other person holds the pins to ensure the installation height and perpendicularity requirements specified in the technical requirements of the drawing and the process document, and then manual soldering is carried out with a temperature-controlled soldering iron. Repeat this way to complete the soldering operation of 5 pins in 2 types on the printed circuit board.

[0004] Since the installation of pins on the printed circuit board in the prior art is positioned by one person holding the printed circuit board and the other person holding the pins, and the installation height and perpendicularity requirements of the pins are manually ensured, there are inevitably problems such as high requirements for the quality of operators, low installation efficiency, and high rejection rate. The consistency of the installation height and perpendicularity of the pins on different printed circuit boards is also relatively poor. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is how to achieve the installation of pins on the printed circuit board with high efficiency, high consistency, and high qualification rate. In view of this, the utility model provides a multi-pin welding tooling.

[0006] The technical solution adopted by the utility model is that the multi-pin welding tooling includes:

[0007] A base, on the front surface of the base, there are provided a plurality of hole structures corresponding to the pin positions of the workpiece to be welded, and on the back surface, there is provided a socket matching the number of workpieces to be welded;

[0008] A flat plate, arranged on the front surface of the base, is provided with grooves corresponding to the positions of the sockets for placing the workpiece to be welded;

[0009] A buckle, arranged on the flat plate and rotatable along its own rotation axis, is used to press or release the workpiece to be welded located in the groove.

[0010] In one embodiment, the base and the flat plate are connected by a plurality of flat plate screws, the socket is assembled to the base through socket screws, the buckle is arranged on the flat plate through buckle screws, and the workpiece to be welded is a printed circuit board, which is arranged in the groove through printed circuit board screws.

[0011] In one embodiment, a spring is arranged around the buckle screw, and a buckle nut is arranged at the distal end.

[0012] In one embodiment, central through holes corresponding to the height and perpendicularity of the thick pins welded on the printed circuit board are provided in the base and the socket, for limiting the height and perpendicularity of the thick pins.

[0013] In one embodiment, blind holes corresponding to the height and perpendicularity of the thin pins welded on the printed circuit board are provided on the base, for limiting the height and perpendicularity of the thin pins.

[0014] In one embodiment, the flat plate and the base are made of rigid body materials.

[0015] In one embodiment, the bottom surface of the buckle is a chamfered fillet.

[0016] Adopting the above technical solutions, the present utility model has at least the following advantages:

[0017] The structure of the present utility model is simple and the operation is convenient. During welding, the pins can be effectively and accurately limited and fixed. The printed circuit board is fixed by an elastic component, which is convenient for installing the printed circuit board before welding and removing it after welding. At the same time, the elastic component causes less damage to the printed circuit board. Description of the Drawings

[0018] Figure 1 It is an installation schematic diagram (front view) of the multi-pin welding tooling provided in this embodiment.

[0019] Figure 2 It is a flow chart of the multi-pin welding tooling provided in this embodiment.

[0020] Figure 3 It is an installation schematic diagram (reverse view) of the multi-pin welding tooling provided in this embodiment.

[0021] Figure 4 It is a schematic diagram of fixing the printed circuit board and the thick pins to the pin welding tooling provided in this embodiment.

[0022] Figure 5 It is a schematic diagram of fixing the printed circuit board and the thin pins to the pin welding tooling provided in this embodiment.

[0023] Figure 6Schematic diagram of the printed circuit board after the thick pins and thin pins provided in this embodiment are welded.

[0024] Reference numerals

[0025] 1 - Base, 2 - Flat plate, 3 - Flat plate screw, 4 - Clasp, 5 - Spring, 6 - Clasp screw, 7 - Clasp nut, 8 - Socket screw, 9 - Socket, 10 - Printed circuit board, 11 - Thick pin, 12 - Printed circuit board screw, 13 - Thin pin. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following examples are given with reference to the accompanying drawings to further elaborate on the present application in detail.

[0027] It should be understood that the terms "include", "include with", "have", "contain" and / or "contain with", when used in this specification, indicate the presence of the stated features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations. In addition, when an expression such as "at least one of..." appears after a list of listed features, it modifies the entire list of listed features rather than an individual element in the list. In addition, when describing the embodiments of the present application, "may" is used to indicate "one or more embodiments of the present application". Also, the term "exemplary" is intended to refer to an example or illustration.

[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless clearly defined herein.

[0029] An embodiment of the present utility model, a multi - pin welding tooling, as Figure 1 shown, includes:

[0030] A base 1, on the front surface of the base 1, there are provided a plurality of hole structures corresponding to the pin positions of the workpiece to be welded, and on the back surface, there is a socket 9 matching the number of workpieces to be welded;

[0031] A flat plate 2, arranged on the front surface of the base 1, is provided with a groove corresponding to the position of the socket 9 for placing the workpiece to be welded;

[0032] A clasp 4, arranged on the flat plate 2 and rotatable along its own rotation axis, is used to press or loosen the workpiece to be welded located in the groove.

[0033] In this embodiment, the base 1 and the flat plate 2 are connected by a plurality of flat plate screws 3, the socket 9 is assembled to the base 1 by socket screws 8, the buckle 4 is arranged on the flat plate 2 by buckle screws 6, and the workpiece to be welded is a printed circuit board 10, which is arranged in the groove by printed circuit board screws 12.

[0034] In this embodiment, a spring 5 is arranged around the buckle screw 6, and a buckle nut 7 is arranged at the distal end.

[0035] In this embodiment, corresponding central through holes are provided in the base 1 and the socket 9, which match the height and perpendicularity of the thick insertion pins 11 welded on the printed circuit board, for limiting the height and perpendicularity of the thick insertion pins 11.

[0036] In this embodiment, blind holes corresponding to the height and perpendicularity of the thin insertion pins 13 welded on the printed circuit board 10 are provided on the base 1, for limiting the height and perpendicularity of the thin insertion pins 13.

[0037] In this embodiment, the materials of the base 1 and the flat plate 2 are rigid body materials.

[0038] In this embodiment, the bottom surface of the buckle 4 is a chamfered fillet.

[0039] Reference Figure 2 , the following provides an application operation example of the device provided in this embodiment.

[0040] Step 1: Assemble the insertion pin welding tooling.

[0041] Reference can be made again to Figure 1 , use the buckle screw 6 and the buckle nut 7 to assemble the spring 5 and the buckle 4 onto the flat plate 2, and then assemble the flat plate 2 onto the base 1 with the flat plate screw 3. Refer to Figure 3 , use the socket screw 8 to assemble the socket 9 onto the base 1.

[0042] Step 2: Fix the printed circuit board and install the thick insertion pins.

[0043] Reference Figure 4 , place 4 printed circuit boards 10 into the 4 grooves of the flat plate 2, and then fix the printed circuit boards 10 to the grooves of the flat plate 2 with the printed circuit board screws 12. To prevent the printed circuit boards 10 from warping, turn the buckle 4 onto the printed circuit boards 10 and fix them. Install the thick insertion pins 11 into the welding holes at the center of the printed circuit boards 10, press them down firmly, and limit the thick insertion pins 11 by the socket 9.

[0044] Step 3: Weld the thick insertion pins. Hold the soldering iron and use the solder wire to align with Figure 4 the exposed thick insertion pins 11 for welding.

[0045] Step 4: Turn over and fix the printed circuit board and install the thin pins. Screw the buckle 4 onto the flat plate 2, remove the printed circuit board screws 12, and remove the printed circuit board 10 with the thick pins 11 welded.

[0046] refer to Figure 5 , turn the printed board 10 to the other side, place it in the four grooves of the flat plate 2, and then fix the printed board 10 in the grooves of the flat plate 2 with the printed board screws 12. To prevent the printed board 10 from warping, screw the buckle 4 onto the printed board 10 to fix it. Install the four thin pins 13 into the welding holes around the printed board 10, and limit the thin pins 13 by the holes of the flat plate 2 and the base 1.

[0047] Step 5: Solder the thin pins. Hold the soldering iron and align the solder wire Figure 5 After welding is completed, the buckle 4 is screwed onto the flat plate 2, the printed circuit board screws 12 are removed, and the printed circuit board 10 with the thick pins 11 and the thin pins 13 welded is removed to obtain a finished welding product, such as Figure 6 as shown in .

[0048] In summary, this embodiment can be used to achieve:

[0049] 1) The utility model completes welding with specific requirements by designing welding auxiliary tooling.

[0050] 2) The utility model limits the installation height of the thin pin by using the depth of the through hole of the flat plate and the depth of the blind hole of the base.

[0051] 3) The utility model limits the verticality of the thin pin by the diameter lines of the through holes at the four corners of the flat groove.

[0052] 4) The utility model limits the installation height of the thick pin by the depth of the socket provided by the product and the central through hole of the flat plate groove.

[0053] 5) The utility model temporarily fixes the printed circuit board through elastic components.

[0054] 6) The plate and base of the utility model are made of rigid materials, and the plate should be able to withstand a high temperature of at least 200°C.

[0055] Therefore, compared with the prior art, the advantages of the present invention are mainly reflected in:

[0056] 1. The utility model has a simple structure and is easy to operate. It can effectively limit and fix the pins accurately during welding. The printed circuit board is fixed with an elastic component, which is convenient for installation before welding and removal of the printed circuit board after welding. At the same time, the elastic component has little damage to the printed circuit board.

[0057] 2. The utility model has strong popularization. For operations similar to inserting pins and welding them onto a printed circuit board, only the depth, diameter, position of the pin limiting holes and the position of the elastic components need to be adjusted. This device is flexible in operation, can be used for products with multiple varieties and small batches, saves production costs, solidifies the product size, and has a high consistency of the finished product after welding, and can be used as a special tooling.

[0058] 3. The utility model has strong interchangeability. The elastic components are not limited to springs and can also be replaced with other elastic materials. The tooling materials can be selected from common and inexpensive metal materials or plastics that can withstand temperatures above 200°C. Each part is connected by screws, which is convenient for disassembly and maintenance.

[0059] Through the description of the specific implementation manners, it should be possible to have a more in-depth and specific understanding of the technical means and effects adopted by the utility model to achieve the intended purpose. However, the attached drawings are only for reference and illustration, and are not used to limit the utility model.

Claims

1. A multi-pin welding tooling, characterized in that, Comprising: A base, on the front of which there are provided a plurality of hole structures corresponding to the pin positions of the workpiece to be welded, and on the back there is provided a socket matching the number of the workpieces to be welded; A flat plate, arranged on the front of the base, provided with grooves corresponding to the positions of the sockets for placing the workpieces to be welded; A buckle, arranged on the flat plate and rotatable along its own rotation axis, for pressing or loosening the workpiece to be welded located in the groove.

2. The multi-pin welding tooling according to claim 1, wherein, The base and the flat plate are connected by a plurality of flat plate screws, the socket is assembled on the base by socket screws, the buckle is arranged on the flat plate by buckle screws, and the workpiece to be welded is a printed circuit board, which is arranged in the groove by printed circuit board screws.

3. The multi-pin welding tooling according to claim 2, characterized in that, A spring is arranged around the buckle screw, and a buckle nut is arranged at the distal end.

4. The multi-pin welding tooling according to claim 2, wherein Centrally through holes corresponding to the height and perpendicularity of the thick pins welded on the printed circuit board are provided in the base and the socket correspondingly, for limiting the height and perpendicularity of the thick pins.

5. The multi-pin soldering tooling according to claim 2, characterized in that, Blind holes corresponding to the height and perpendicularity of the thin pins welded on the printed circuit board are provided correspondingly on the base, for limiting the height and perpendicularity of the thin pins.

6. The multi-pin soldering tooling according to any one of claims 1 to 5, characterized in that The materials of the flat plate and the base are rigid body materials.

7. The multi-pin welding tooling according to claim 1, characterized in that The bottom surface of the buckle is a chamfered fillet.

Images