An optical communication module welding fixture

Abstract

The present invention relates to the technical field of optical communication module production and manufacturing. Specifically, it relates to a welding fixture for an optical communication module, which includes a base, a cover plate installed above the base and movable in the vertical direction, and a support plate arranged below the base and movable in the vertical direction. An installation groove for placing a PCB board is formed in the base in the transverse direction. The base and the support plate are formed with first installation holes for placing devices in the vertical direction. Through holes corresponding to the first installation holes are provided on the cover plate. The combination of a plurality of installation grooves and first installation holes is arranged in the longitudinal direction to form a concave placement surface. In the present invention, the vertical limit of the device is realized through the first installation holes on the base and the support plate. After the flexible board is attached to the device pins, the PCB board is placed in the installation groove for welding. The fixation of the device and the PCB board is convenient and reliable. The distance between the base and the support plate is adjustable. By simply adjusting the height of the support plate, the welding of devices with different heights can be achieved, improving the compatibility of different devices.

Description

Technical Field

[0001] The present invention relates to the technical field of optical communication module production and manufacturing, and more particularly, to a welding fixture for an optical communication module. Background Art

[0002] The welding position of an optical communication module is an important and key position in the production and manufacturing process of an optical communication module. Currently, the welding of an optical communication module mainly includes: the welding of components and flexible boards, and the welding of flexible boards and PCB boards. How to improve the welding quality and efficiency of an optical communication module plays a crucial role in the survival and development of production and manufacturing manufacturers.

[0003] Currently, the welding work of an optical communication module is mainly completed by the cooperation of manual labor and machines or entirely by manual labor. The main welding difficulties are how to fix and limit components, flexible boards, and PCB boards during the welding process, and how to achieve the compatibility of welding the same series of components, flexible boards, and PCB boards on a set of fixtures. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding fixture for an optical communication module, which has the characteristics of high positioning accuracy, reliable clamping and fixing, strong compatibility, and low assembly difficulty, and can realize the welding of the same series of components, flexible boards, and PCB boards, so as to solve the problems pointed out in the background art.

[0005] An embodiment of the present invention is achieved by the following technical solutions: A welding fixture for an optical communication module includes a base, a cover plate installed above the base and movable in the vertical direction, and a support plate arranged below the base and movable in the vertical direction;

[0006] An installation groove for placing a PCB board is formed on the base in the transverse direction, a first installation hole for placing components is formed on the base and the support plate in the vertical direction, through holes corresponding to the first installation holes are provided on the cover plate, and a combination of several installation grooves and first installation holes are arranged in the longitudinal direction to form a concave placement surface, and a welding head passes through the through holes and extends to the corresponding welding position of the optical communication module on the concave placement surface.

[0007] According to a preferred embodiment, second installation holes are correspondingly provided at both longitudinal ends of the cover plate and the base, and the cover plate and the base are connected by a threaded component that cooperates with the second installation holes.

[0008] According to a preferred embodiment, the threaded component includes a knob nut and a threaded sleeve, and the threaded sleeve is arranged in the corresponding second installation hole on the base and is in interference fit with the corresponding second installation hole on the base.

[0009] According to a preferred embodiment, first threaded through holes are correspondingly formed at both longitudinal ends of the cover plate, the base and the support plate, and the cover plate, the base and the support plate are connected by first screws threadedly engaged with the first threaded through holes.

[0010] According to a preferred embodiment, a spring is disposed between the support plate and the base.

[0011] According to a preferred embodiment, a magnetic member is disposed between the cover plate and the base.

[0012] According to a preferred embodiment, the first mounting hole is a TOSA device mounting hole for mounting a TOSA device or a ROSA device mounting hole for mounting a ROSA device, and a notch is formed in the cover plate at a position corresponding to the TOSA device mounting hole or the ROSA device mounting hole.

[0013] According to a preferred embodiment, the support plate is composed of a first support plate and a second support plate that can move relative to each other in the vertical direction.

[0014] According to a preferred embodiment, the first mounting hole is composed of a TOSA device mounting hole and a ROSA device mounting hole. The TOSA device mounting hole is disposed on the first support plate, and the ROSA device mounting hole is disposed on the second support plate.

[0015] According to a preferred embodiment, a combination of second threaded through holes and first elongated holes is formed in the lateral direction on the sides of the first support plate and the second support plate. Among them, the second threaded through holes on the first support plate correspond to the first elongated holes on the second support plate, and the first elongated holes on the first support plate correspond to the threaded through holes on the second support plate;

[0016] Second elongated holes are formed in the base corresponding to the second threaded through holes and the first elongated holes, and the base and the support plate are connected by second screws engaged with the second elongated holes.

[0017] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: (1) For the optical communication module welding fixture provided by the present invention, the device is vertically limited through the first mounting holes on the base and the support plate. After the flexible board is attached to the device pins, the PCB board is placed in the installation groove for welding. The fixing of the device and the PCB board is convenient and reliable. (2) The device and the PCB board have strong compatibility. The distance between the base and the support plate is adjustable. By only adjusting the height of the support plate, the welding of devices with different heights can be achieved, improving the compatibility of different devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the optical communication module welding fixture provided in Embodiment 1 of the present invention;

[0019] Figure 2 Overall schematic diagram of the optical communication module welding fixture provided in Embodiment 1 of the present invention;

[0020] Figure 3 Schematic diagram of the back of the base provided in Embodiment 1 of the present invention;

[0021] Figure 4 Schematic diagram of the front of the base provided in Embodiment 1 of the present invention;

[0022] Figure 5 Schematic diagram of the cover plate provided in Embodiment 1 of the present invention;

[0023] Figure 6 Schematic diagram of the first support plate provided in Embodiment 1 of the present invention;

[0024] Figure 7 Schematic diagram of the second support plate provided in Embodiment 1 of the present invention;

[0025] Figure 8 Schematic diagram of the fixture base provided in Embodiment 1 of the present invention;

[0026] Figure 9 Schematic diagram of the completion of the welding of the same-direction devices provided in Embodiment 1 of the present invention;

[0027] Figure 10 Schematic diagram of the PCB board and the flexible board provided in Embodiment 1 of the present invention;

[0028] Figure 11 Structural schematic diagram of the optical communication module welding fixture provided in Embodiment 2 of the present invention;

[0029] Figure 12 Overall schematic diagram of the optical communication module welding fixture provided in Embodiment 2 of the present invention;

[0030] Figure 13 Schematic diagram of the back of the base provided in Embodiment 2 of the present invention;

[0031] Figure 14 Schematic diagram of the cover plate provided in Embodiment 2 of the present invention;

[0032] Figure 15 Schematic diagram of the front of the base provided in Embodiment 2 of the present invention;

[0033] Figure 16 Schematic diagram of the support plate provided in Embodiment 2 of the present invention;

[0034] Figure 17 Schematic diagram of the PCB board with a flexible board provided in Embodiment 2 of the present invention;

[0035] Figure 18 Schematic diagram of the completion of the welding of the reverse devices provided in Embodiment 2 of the present invention;

[0036] Figure 19 Schematic diagram of the structure of the optical communication module welding fixture provided in Embodiment 3 of the present invention;

[0037] Figure 20 Overall schematic diagram of the optical communication module welding fixture provided in Embodiment 3 of the present invention;

[0038] Figure 21 Front view of the base provided in Embodiment 3 of the present invention;

[0039] Figure 22 Schematic diagram of the completion of welding of the same-direction devices provided in Embodiment 3 of the present invention;

[0040] Icons: 1 - fixture base, 2 - base, 3 - TOSA device, 4 - ROSA device, 5 - threaded sleeve, 6 - knob nut, 7 - spring, 8 - cover plate, 9 - first support plate, 10 - second support plate, 11 - magnet, 12 - first pin, 13 - second pin, 14 - first screw, 15 - PCB board with flexible board, 16 - second screw, 17 - support plate. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0042] Embodiment 1

[0043] Refer to Figures 1 to 10 as shown, an optical communication module welding fixture is provided in an embodiment of the present invention.

[0044] The optical communication module welding fixture provided in the embodiment of the present invention includes a base, a cover plate and a support plate. Specifically:

[0045] Base 2, refer to Figure 4 as shown, an installation groove for placing a PCB board is formed on its upper surface in the transverse direction, and there are local support points in the groove. The support points correspond to the gold fingers of the PCB board and the safety areas reserved along the edges of the PCB board, so as to support the PCB boards of the same series without interfering with the components on the PCB board; a first installation hole for installing a TOSA device 3 and a ROSA device 4 is also formed on the base 2 in the vertical direction; two of the four corners of the base 2 are rounded structures, and the other two corners are right-angled structures, which are mainly used to cooperate with the fixture base 1 connected to its bottom for installation to achieve an anti-fooling effect. The fixture base 1 is as Figure 8 shown.

[0046] The cover plate 8, as Figure 5 shown, is arranged above the base 2 and is arranged to be movable in the vertical direction; further, through holes are provided on the cover plate 8 corresponding to the first mounting holes, and the combination of a plurality of the mounting grooves and the first mounting holes is arranged in the longitudinal direction to form a concave placement surface, and the welding head passes through the through holes and extends to the welding position corresponding to the optical communication module on the concave placement surface. Specifically, in the embodiment of the present invention, there are two rows of first mounting holes corresponding to the installation of the TOSA device 3 and the ROSA device 4 on the cover plate 8, so as to expose the welding area of the flexible board and the device pins. It should be noted that in the specific practice process, the through holes do not expose all of the device pin areas and the flexible board, so as to ensure the welding accuracy.

[0047] Further, in the embodiment of the present invention, second mounting holes are correspondingly opened at both longitudinal ends of the cover plate 8 and the base 2, and the cover plate 8 and the base 2 are connected by a threaded assembly that cooperates with the second mounting holes. The threaded assembly includes a knob nut 6 and a threaded sleeve 5. The threaded sleeve 5 is arranged in the corresponding second mounting hole on the base 2 and is in interference fit with the corresponding second mounting hole on the base 2. The internal thread of the threaded sleeve 5 is used to cooperate with the threaded end on the knob nut 6 to achieve the function of clamping the cover plate 8. For the knob nut 6, one end is a threaded structure end, and the other end is a rotating end. The surface of the rotating end is treated with anti-slip threads to improve the anti-slip effect.

[0048] Further, first pin 12 holes are correspondingly opened at the top of the base 2 and the bottom of the cover plate 8, and the base 2 and the cover plate 8 are limited by a first pin 12 that cooperates with the first pin 12 holes; specifically, one end of the first pin 12 is chamfered, and it is in interference fit with the corresponding first pin 12 hole on the base 2, so as to cooperate with the corresponding first pin 12 hole on the cover plate 8 to play a role of quickly positioning and limiting the cover plate 8. In addition, second pin 13 holes are also correspondingly opened at the top of the base 2 and the bottom of the cover plate 8, and the base 2 and the cover plate 8 are limited by a second pin 13 that cooperates with the second pin 13 holes; specifically, one end of the second pin 13 is chamfered, and it is in interference fit with the corresponding second pin 13 hole on the base 2, so as to cooperate with the corresponding second pin 13 hole on the cover plate 8 to play a role of quickly positioning and limiting the cover plate 8. In addition, the sizes of the first pin 12 and the second pin 13 are different, so as to be able to play a role of anti-fooling for the cover plate 8.

[0049] The support plate 17, as Figure 6 and Figure 7As shown, it is set to be movable in the vertical direction; further, the support plate 17 is formed with first mounting holes for mounting the TOSA device 3 and the ROSA device 4 in the vertical direction; specifically in the embodiment of the present invention, the first mounting holes are correspondingly arranged as stepped holes inside the support plate 17, wherein the mounting hole diameter of the TOSA device 3 is smaller than the mounting hole diameter of the TOSA device 3 on the base 2, and the mounting hole diameter of the ROSA device 4 is smaller than the mounting hole diameter of the ROSA device 4 on the base 2.

[0050] Further, in the embodiment of the present invention, first threaded through holes are correspondingly opened at both longitudinal ends of the cover plate 8, the base 2 and the support plate 17, and the cover plate 8, the base 2 and the support plate 17 are connected by first screws 14 that are threadedly engaged with the first threaded through holes, and the first screws 14 serve to adjust the distance between the support plate 17 and the base 2.

[0051] Further, the support plate 17 is composed of a first support plate 9 and a second support plate 10 that can move relative to each other in the vertical direction. Specifically in the embodiment of the present invention, a TOSA device mounting hole is provided inside the first support plate 9, and a semi-circular groove is provided on one side thereof for cooperation with the second support plate 10; a ROSA device 4 mounting hole is provided inside the second support plate 10, and a semi-circular boss that cooperates with the semi-circular groove on the first support plate 9 is provided on one side thereof. It should be noted that through the structure in which the double support plate 17 of the fixture is individually adjustable, the adjustment requirements for different heights of the TOSA device 3 and the ROSA device 4 are realized, thereby achieving the goal of welding the co-directional TOSA device 3 and ROSA device 4 at one time.

[0052] Further, a combination of second threaded through holes and first elongated holes is opened along the transverse direction on the side edges of the first support plate 9 and the second support plate 10, wherein the second threaded through holes on the first support plate 9 correspond to the first elongated holes on the second support plate 10, and the first elongated holes on the first support plate 9 correspond to the threaded through holes on the second support plate 10; second elongated holes are correspondingly opened on the side of the base 2 for the second threaded through holes and the first elongated holes, and the base 2 and the support plate 17 are connected by second screws 16 that cooperate with the second elongated holes. Specifically in the embodiment of the present invention, two first elongated holes are provided on the first support plate 9, two second threaded through holes are provided between the two first elongated holes, and the two first elongated holes and the two second threaded through holes are arranged on the same straight line, and the first elongated holes and the second threaded through holes on the second support plate 10 are correspondingly arranged with respect to the first support plate 9; specifically in the embodiment of the present invention, the ground of the base 2 is in an I-shaped structure, and the first elongated holes are provided on the I-shaped structure beam.

[0053] In addition, in an implementation manner of the embodiment of the present invention, the clamping method between the cover plate 8 and the base 2 is not limited to the pressing method of the knob nut 6, and can also be the pressing method of the spring 7, the magnetic attraction pressing method, the buckle pressing method, etc., which will not be elaborated here.

[0054] Further, magnetic attraction installation counterbores are correspondingly arranged at the bottom of the cover plate 8 and the top of the base 2, and magnetic members are arranged in the magnetic attraction installation counterbores. In an implementation manner of the embodiment of the present invention, the magnetic members are magnets. In addition, spring 7 installation holes are correspondingly arranged at the top of the base 2 and the top of the support plate 17, and a spring 7 is arranged in the spring 7 installation holes.

[0055] To sum up, the optical communication module welding fixture provided by the present invention is applicable to the welding work of co-directional devices. The devices are limited in the vertical direction through the first installation holes on the base 2 and the support plate 17. Specifically, Figure 9 as shown in the PCB board 15 with a flexible board. After the flexible board is attached to the device pins, the PCB board is placed into the installation groove for welding, specifically Figure 10 as shown; the fixing of the devices and the PCB board is convenient and reliable; the compatibility of the devices and the PCB board is strong, and the distance between the base 2 and the support plate 17 is adjustable. By only adjusting the height of the support plate 17, the welding of devices with different heights can be achieved, improving the compatibility of different devices.

[0056] Embodiment 2

[0057] Different from Embodiment 1, in an implementation manner of the embodiment of the present invention, it mainly aims at the welding work of reverse devices. Refer to Figures 12 to 18 , the support plate 17 is an integral body. Correspondingly, only a pair of first waist-shaped holes are opened on the I-shaped structural beam of the base 2, as Figure 16 shown. Only a pair of second threaded through holes are opened on the support plate 17 corresponding to the first waist-shaped holes; the fixture provided by the embodiment of the present invention is for the welding work of ROSA devices 4 with different sizes from the ROSA devices 4 welded in Embodiment 1. It should be noted that the ROSA devices 4 targeted in both Embodiment 1 and Embodiment 2 have the characteristic that the circumferential dimension at one end is larger than that at the other end.

[0058] For the PCB board that needs to perform the welding work of ROSA / TOSA devices 3 after the TOSA / ROSA devices 4 have been welded, the structure of the cover plate 8 in Embodiment 1 is adjusted in the embodiment of the present invention, as Figure 14 shown. Specifically, a row of first installation holes are arranged on the cover plate 8, and a notch is opened at the position of the cover plate 8 corresponding to the TOSA device installation hole or the ROSA device installation hole. In addition, reinforcing ribs are arranged inside the cover plate 8 provided by the embodiment of the present invention to improve the overall strength of the cover plate 8 and prevent deformation.

[0059] In summary, this fixture can be used in combination with a welding platform for secondary clamping and welding to achieve the goal of automatic welding of reverse devices. In addition, by combining with a welding platform, not only can the welding efficiency be greatly improved, but also the consistency and reliability of welding can be ensured, the welding quality can be enhanced, and the risks of unqualified welding such as bridging, cold soldering, and cusp formation can be reduced.

[0060] Embodiment 3

[0061] Different from the above embodiments, in an implementation manner of the embodiments of the present invention, refer to Figures 19 to 22 , in the embodiments of the present invention, the structures of the base 2 and the cover plate 8 in the above embodiments are adjusted. Specifically, the TOSA device mounting holes and ROSA device mounting holes of the shown base 2 are set as rectangular holes to target the rectangular TOSA device 3 and ROSA device 4. Correspondingly, the aperture of the first through hole on the cover plate 8 is adjusted according to the TOSA device 3 and ROSA device 4 to ensure that the welding area exposed by the first through hole will not affect the normal progress of the welding work.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An optical communication module welding fixture, characterized in that, It includes a base (2), a cover plate (8) installed above the base (2) and movable in the vertical direction, and a support plate (17) arranged below the base (2) and movable in the vertical direction; An installation groove for placing a PCB board is formed in the base (2) in the transverse direction. The base (2) and the support plate (17) are formed with first installation holes for placing devices in the vertical direction. Through holes corresponding to the first installation holes are provided on the cover plate (8). The combination of a number of the installation grooves and the first installation holes is arranged in the longitudinal direction to form a concave placement surface, through which a soldering head passes and extends to the soldering position corresponding to an optical communication module on the concave placement surface; The support plate (17) is composed of a first support plate (9) and a second support plate (10) that can move relative to each other in the vertical direction.

2. The optical communication module soldering fixture according to claim 1, characterized in that Second installation holes are correspondingly formed at both longitudinal ends of the cover plate (8) and the base (2). The cover plate (8) and the base (2) are connected by a threaded component that cooperates with the second installation holes.

3. The optical communication module soldering fixture according to claim 2, wherein The threaded component includes a knob nut (6) and a threaded sleeve (5). The threaded sleeve (5) is arranged in the corresponding second installation hole on the base (2) and is in interference fit with the corresponding second installation hole on the base (2).

4. The optical communication module soldering fixture according to any one of claims 1 to 3, characterized in that, First threaded through holes are correspondingly formed at both longitudinal ends of the cover plate (8), the base (2), and the support plate (17). The cover plate (8), the base (2), and the support plate (17) are connected by a first screw (14) that is threadedly engaged with the first threaded through holes.

5. The optical communication module soldering fixture according to claim 4, wherein A spring (7) is arranged between the support plate (17) and the base (2).

6. The optical communication module soldering fixture according to claim 5, characterized in that, A magnetic part is arranged between the cover plate (8) and the base (2).

7. The optical communication module soldering fixture according to claim 6, wherein, The first installation hole is a TOSA device installation hole for installing a TOSA device (3) or a ROSA device installation hole for installing a ROSA device (4). A notch is formed in the cover plate (8) at the position corresponding to the TOSA device installation hole or the ROSA device installation hole.

8. The optical communication module soldering jig according to claim 6, characterized in that, The first installation hole is composed of a TOSA device installation hole and a ROSA device installation hole. The TOSA device installation hole is arranged on the first support plate (9), and the ROSA device installation hole is arranged on the second support plate (10).

9. The optical communication module soldering fixture according to claim 8, wherein, A combination of a second threaded through hole and a first waist-shaped hole is formed in the lateral direction at the side edges of the first support plate (9) and the second support plate (10). Among them, the second threaded through hole on the first support plate (9) corresponds to the first waist-shaped hole on the second support plate (10), and the first waist-shaped hole on the first support plate (9) corresponds to the threaded through hole on the second support plate (10); Second waist-shaped holes are formed at the side of the base (2) corresponding to the second threaded through hole and the first waist-shaped hole. The base (2) and the support plate (17) are connected by a second screw (16) that cooperates with the second waist-shaped holes.

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