CN215787821U

CN215787821U - CFP2 optical module hot press welding anchor clamps

Info

Publication number: CN215787821U
Application number: CN202122015110.3U
Authority: CN
Inventors: 马雁潮; 毛明旺; 叶宇
Original assignee: Shenzhen Hi Optel Technology Co ltd
Current assignee: Shenzhen Hi Optel Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-11
Anticipated expiration: 2031-08-25

Abstract

The utility model provides a hot-press welding fixture for a CFP2 optical module, which comprises an optical device fixing plate and a PCBA fixing plate arranged opposite to the optical device fixing plate, wherein one end of the optical device fixing plate is provided with an optical device placing groove, two sides of the optical device placing groove are symmetrically provided with two first clearance grooves, the bottom in the optical device placing groove is provided with a vacuumizing hole, and one side of the optical device fixing plate is also provided with an air suction opening communicated with the vacuumizing hole; PCBA fixed plate one end is equipped with the PCBA standing groove, and both sides are equipped with a support boss respectively in the PCBA standing groove, and the outer both sides of PCBA standing groove are equipped with one respectively and can follow the rotatory fixed clamp piece in PCBA fixed plate place plane. The fixing clamp block is simple in structure, the PCBA can be effectively fixed through the fixing clamp block, the optical device can be effectively fixed through the vacuumizing hole arranged in the optical device placing groove, the optical device cannot be displaced after being aligned, and welding precision is guaranteed.

Description

CFP2 optical module hot press welding anchor clamps

Technical Field

The utility model relates to the field of optical communication, in particular to a hot-press welding clamp for a CFP2 optical module.

Background

The thermocompression bonding technique has been widely used for production and manufacturing of communication products due to its high reliability and production efficiency. The realization mode of the technology mainly utilizes a pneumatic device in a hot-press welding machine to press the soft board with the welding on a corresponding bonding pad of the circuit board by a hot-press head, and the soldering tin preset on the bonding pad is melted and permeates the soft board by heating the hot-press head, thereby realizing the high-efficiency and high-quality welding of the soft board on the circuit board. In the whole hot-press welding process, the flexible board and the circuit board need to be fixed in respective clamps respectively to ensure that products do not displace in the press welding process. Therefore, different products need to be designed to ensure reliable hot-press welding and to ensure smooth removal of the product. Only CN102015001011683 in the published patent discloses a clamp structure for hot press bonding of an SFP module, the optical device used in the SFP module is a TO package, and the light-emitting direction of a flexible board and a die is perpendicular. And the optical device used by the CFP2 optical module is a BOX (BOX) package, and the soft board and the die light-emitting direction are parallel. The holding structures of the optical devices are therefore not compatible; the PCBA of the SFP optical module described in CN102015001011683 is small in size, and can be directly sucked by a vacuum nozzle during soldering to keep the PCBA fixed in the fixture. The PCBA area of the CFP2 optical module is six times of that of the SFP, and the CFP2 optical module cannot be fixed by a vacuum suction nozzle, so that the structure of a PCBA holding part needs to be adjusted in terms of a clamping mechanism; the pad pitch of the SFP PCBA described in CN102015001011683 is larger than that of the CFP2 optical module, so that the clamping size precision of the CFP2 optical module clamp is required to be higher, and the welding process needs to be adjusted to a process of welding only one optical device (a light emitting component or a light receiving component).

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a hot-press welding fixture for a CFP2 optical module.

The utility model provides a hot-press welding fixture for a CFP2 optical module, which comprises an optical device fixing plate and a PCBA fixing plate arranged opposite to the optical device fixing plate, wherein one end of the optical device fixing plate is provided with an optical device placing groove, two first clearance grooves are symmetrically arranged on two sides of the optical device placing groove, a vacuumizing hole is formed in the bottom of the optical device placing groove, and one side of the optical device fixing plate is also provided with an air suction opening communicated with the vacuumizing hole; PCBA fixed plate one end is equipped with the PCBA standing groove, both sides are equipped with a support boss respectively in the PCBA standing groove, the outer both sides of PCBA standing groove are equipped with one respectively and can follow the rotatory fixed clamp splice in PCBA fixed plate place plane.

As a further improvement of the utility model, the middle of the optical device fixing plate is further provided with a plurality of first fixing holes and two front and rear position adjusting strip-shaped holes arranged on two sides of the plurality of first fixing holes.

As a further improvement of the utility model, one end of the supporting boss far away from the optical device fixing plate is also provided with a PCBA positioning column.

As a further improvement of the utility model, two symmetrically arranged PCBA left and right position adjusting holes and a plurality of symmetrically arranged second fixing holes are arranged on the PCBA fixing plate and positioned at two sides of the PCBA placing groove.

As a further improvement of the utility model, two symmetrically arranged handheld grooves are arranged on two sides of the PCBA placing groove close to one end of the optical device fixing plate.

As a further improvement of the present invention, a second clearance groove is further provided at an end of the PCBA placement groove close to the optical device fixing plate, and a third clearance groove is provided at an end of the PCBA placement groove far from the optical device fixing plate.

As a further improvement of the utility model, the fixing clamping block is fixed on the PCBA fixing plate through a fixing bolt.

The utility model has the beneficial effects that: the fixing clamp block is simple in structure, the PCBA can be effectively fixed through the fixing clamp block, the optical device can be effectively fixed through the vacuumizing hole arranged in the optical device placing groove, the optical device cannot be displaced after being aligned, and welding precision is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a CFP2 optical module thermocompression bonding fixture according to the present invention;

FIG. 2 is a reference diagram of a use state of a CFP2 optical module thermocompression bonding fixture according to the present invention;

fig. 3 is a reference diagram of a use state of the CFP2 optical module thermocompression bonding fixture of the present invention mounted on the thermocompression bonding fixture.

Reference numerals: 1-an optical device fixing plate; 2-PCBA fixing plate; 3-an optical device; 4-PCBA; 5-hot press welder; 6-rotating the disc; 7-hot pressing head; 11-optical device placement groove; 12-a first clearance groove; 13-vacuum hole; 14-a first fixation hole; 15-adjusting the strip-shaped holes in the front and back positions; 21-PCBA placement groove; 22-support bosses; 23-fixing the clamping block; 24-PCBA locating posts; 25-a second fixation hole; 26-PCBA left and right position adjusting holes; 27-a handheld slot; 28-a second clearance groove; 29-third clearance groove.

Detailed Description

As shown in fig. 1 to 3, the utility model discloses a CFP2 optical module thermocompression bonding fixture, which comprises an optical device fixing plate 1 for fixing an optical device 3 and a PCBA fixing plate 2 arranged opposite to the optical device fixing plate 1 and used for fixing a PCBA4, wherein one end of the optical device fixing plate 1 is provided with an optical device placing groove 11, two first clearance grooves 12 are symmetrically arranged at two sides of the optical device placing groove 11, the first clearance grooves 12 are used for avoiding two strip plates extending from the front end of the PCBA4, a vacuum pumping hole 13 is arranged at the bottom in the optical device placing groove 11, one side of the optical device fixing plate 1 is further provided with an air pumping port communicated with the vacuum pumping hole 13, and the optical device 3 can be firmly adsorbed in the optical device placing groove 11 by opening a vacuum pumping device of a thermocompression bonding machine 5 during thermocompression bonding so as to ensure that no displacement occurs during the bonding; 2 one end of PCBA fixed plate is equipped with PCBA standing groove 21 for place the PCBA board, both sides are equipped with a support boss 22 respectively in the PCBA standing groove 21 and are used for accepting PCBA4, and hot pressing head 7 that be can keep supporting and indeformable when pushing down the soft board, PCBA4 outside the PCBA standing groove 21 both sides are equipped with one respectively and can follow the rotatory fixed clamp splice 23 in PCBA fixed plate 2 place plane, place back in PCBA standing groove 21 when PCBA4, stir fixed clamp splice 23, make it press and hold on PCBA4 to realize PCBA 4's complete fixation.

When the device is used, the optical device 3 and the PCBA4 are respectively fixed on the optical device fixing plate 1 and the PCBA fixing plate 2, then the soft board part of the optical device 3 is lapped on a PCBA pad, then the optical device fixing plate 1 and the PCBA fixing plate 2 are fixed on a rotating disk 6 of a hot-press welder 5, and finally the position of the rotating disk 6 is adjusted to enable the clamp to correspond to the position of a hot-press head 7, so that hot-press welding is completed.

This technical scheme simple structure can be effectively fixed respectively to optical device 3 and PCBA4, and easy dismounting, can realize accurate welding, has improved welding efficiency greatly.

In this technical scheme, 1 middle part of optical device fixed plate still is equipped with a plurality of first fixed orificess 14 and two locates position control bar hole 15 around a plurality of first fixed orificess 14 both sides can adjust the height of optical device fixed plate 1 through a plurality of first fixed orificess 14, and position control bar hole 15 can adjust the front and back position of this optical device fixed plate 1 around through two that set up, then through screw locking.

In this technical scheme, keep away from on the support boss 22 the one end of optical device fixed plate 1 still is equipped with PCBA reference column 24, and the position of PCBA reference column 24 corresponds with the through-hole position on PCBA4, and when placing PCBA4, the through-hole on PCBA4 can pass PCBA reference column 24 to the realization is to PCBA 4's location, makes its PCBA4 installation back can not take place the position, further improves fixed effect.

In this technical scheme, lie in on PCBA fixed plate 2 PCBA standing groove 21 both sides are equipped with the PCBA left and right sides position control hole 26 that two symmetries set up and the second fixed orifices 25 that a plurality of symmetries set up, and position control hole 26 can control the regulation of position to PCBA fixed plate 2 about PCBA makes its counterpoint more accurate.

In this technical scheme, be close to the both sides of the PCBA standing groove 21 of optical device fixed plate 1 one end are equipped with the handheld groove 27 of two symmetry settings, can conveniently hand take out PCBA 4.

In this technical scheme, be close to in the PCBA standing groove 21 the one end of optical device fixed plate 1 still is equipped with the second and keeps away empty groove 28, keeps away from in the PCBA standing groove 21 the one end of optical device fixed plate 1 the third keeps away empty groove 29, the second keeps away empty groove 28 and the third keeps away empty groove 29 and all is used for keeping away the bellied components and parts of PCBA4 lower extreme.

In the technical scheme, the fixing clamping block 23 is fixed on the PCBA fixing plate 2 through a fixing bolt, so that the installation is convenient and the structure is simple.

The fixing clamp block 23 is simple in structure, the PCBA4 can be effectively fixed through the fixing clamp block 23, the optical device 3 can be effectively fixed through the vacuumizing hole 13 arranged in the optical device placing groove 11, the optical device cannot be displaced after being aligned, and welding accuracy is guaranteed.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. The utility model provides a CFP2 optical module hot briquetting anchor clamps which characterized in that: the device comprises an optical device fixing plate and a PCBA fixing plate arranged opposite to the optical device fixing plate, wherein one end of the optical device fixing plate is provided with an optical device placing groove, two first clearance grooves are symmetrically arranged on two sides of the optical device placing groove, a vacuumizing hole is formed in the bottom of the optical device placing groove, and an air suction opening communicated with the vacuumizing hole is formed in one side of the optical device fixing plate; PCBA fixed plate one end is equipped with the PCBA standing groove, both sides are equipped with a support boss respectively in the PCBA standing groove, the outer both sides of PCBA standing groove are equipped with one respectively and can follow the rotatory fixed clamp splice in PCBA fixed plate place plane.

2. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: the middle part of the optical device fixing plate is also provided with a plurality of first fixing holes and two front and back position adjusting strip-shaped holes which are arranged at two sides of the first fixing holes.

3. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: and one end of the support boss, which is far away from the optical device fixing plate, is also provided with a PCBA positioning column.

4. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: lie in on the PCBA fixed plate PCBA standing groove both sides are equipped with the PCBA left and right sides position control hole that two symmetries set up and the second fixed orifices that a plurality of symmetries set up.

5. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: and two symmetrically-arranged handheld grooves are formed in the two sides of the PCBA placing groove close to one end of the optical device fixing plate.

6. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: be close to in the PCBA standing groove the one end of optical device fixed plate still is equipped with the second and keeps away the dead slot, keeps away from in the PCBA standing groove the one end of optical device fixed plate the third keeps away the dead slot.

7. The CFP2 optical module thermocompression bonding fixture of claim 1, wherein: the fixed clamping block is fixed on the PCBA fixed plate through a fixed bolt.