CN209449028U

CN209449028U - A kind of SMT laser steel mesh reducing PCB deflection

Info

Publication number: CN209449028U
Application number: CN201920033476.3U
Authority: CN
Inventors: 吴姣红
Original assignee: Shenzhen Huaxing Sheng Technology Co Ltd
Current assignee: Shenzhen Huaxing Sheng Technology Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2019-09-27
Anticipated expiration: 2029-01-09

Abstract

The utility model discloses the SMT laser steel meshs that one kind can reduce PCB deflection, including fixed outline border, rectangular through-hole is offered on the fixed outline border, and the steel mesh main body of rectangle is equipped in fixed outline border through-hole, the workpiece fixed hole position of " work " shape is uniformly provided in the steel mesh main body, " T " shaped scolding tin workpiece is equipped in the workpiece fixed hole position, scolding tin hole location is offered in the scolding tin workpiece, and scolding tin workpiece lower end outer wall offers screw thread, and scolding tin workpiece thread jacket is equipped with circular workpiece fixinig plate, the workpiece fixinig plate is located at the lower end of fixed hole position.This, which can reduce, is provided with individual scolding tin workpiece on the SMT laser steel mesh of PCB deflection, and scolding tin hole location each so individually separates, if scolding tin hole location inner wall occurs coarse, individually the workpiece can be taken out, new workpiece is reinstalled, is easily serviced, working efficiency is greatly improved.

Description

A kind of SMT laser steel mesh reducing PCB deflection

Technical field

The utility model relates to mobile communication terminal technical field of processing equipment, specially one kind can reduce PCB deflection SMT laser steel mesh.

Background technique

With the continuous improvement of PCB welding technique, diversified trend is presented in welding form, new for the one kind occurred at present Type solder type PCB welding requirements needs for one piece of PCB to be welded on another piece of pcb board or other objects, existing for this new The PCB steel mesh of type welding technique is provided with single big scolding tin hole relative to the solderable region of solderable direct type PCB, when welding, Steel mesh is fixed on on substrate to be welded (such as another piece of PCB or other solderability objects), the steel mesh fixed is brushed Tin cream, tin cream removes steel mesh, at this time on substrate to be welded in the steel mesh aperture being filled on substrate to be welded at this time The only tin cream that leaves of steel mesh tapping；Solder type pcb board is fixed on the substrate for brushing tin cream.

Existing steel mesh hole is easy to appear coarse situation after long-time use, in hole, removes in this way in brush tin cream When steel mesh, tin cream and hole location inner wall generate bigger friction, and being easy to cause tin cream, deformation occurs or surface is formed Hole.

Utility model content

The purpose of this utility model is to provide the SMT laser steel meshs that one kind can reduce PCB deflection, to solve background skill The steel mesh hole proposed in art is easy to appear coarse situation after long-time use, in hole, when removing steel mesh, can hold The problem of easily leading to tin cream deformation occurs or surface forms hole.

To achieve the above object, the utility model provides the following technical solutions: the SMT that one kind can reduce PCB deflection swashs Light steel mesh, including outline border is fixed, rectangular through-hole is offered on the fixed outline border, and the steel of rectangle is equipped in fixed outline border through-hole Host's body is uniformly provided with the workpiece fixed hole position of " work " shape in the steel mesh main body, is equipped with " T " in the workpiece fixed hole position The scolding tin workpiece of shape offers scolding tin hole location in the scolding tin workpiece, and scolding tin workpiece lower end outer wall offers screw thread, and welds Tin workpiece thread jacket is equipped with circular workpiece fixinig plate, and the workpiece fixinig plate is located at the lower end of workpiece fixed hole position.

Preferably, the steel mesh lower body and fixed outline border lower end be in the same horizontal line.

Preferably, the center of the center line and scolding tin workpiece of the scolding tin hole location is on the same line.

Preferably, the scolding tin outer workpiece shape and the interior shape of workpiece fixed hole position match, and scolding tin workpiece Height it is equal with the height of workpiece fixed hole position.

Preferably, threaded hole, and screw thread and scolding tin in workpiece fixinig plate threaded hole are offered in the workpiece fixinig plate Outer workpiece screw thread matches.

Preferably, the workpiece fixinig plate outer shape matches with workpiece fixed hole position lower end outer shape.

Compared with prior art, the utility model has the beneficial effects that this can reduce the SMT laser steel mesh of PCB deflection On be provided with individual scolding tin workpiece, scolding tin hole location each so individually separate, if scolding tin hole location inner wall occur it is coarse, can Individually to take out the workpiece, new workpiece is reinstalled, is easily serviced, working efficiency is greatly improved.The steel of the device Host's body and fixed outline border lower end are on same level line, and such steel mesh main body and fixed outline border can be placed on work to be processed On part, the stabilization of steel mesh main body and fixed outline border is kept, scolding tin workpiece can be set in workpiece fixed hole position, can pass through work Part fixinig plate fixes the lower end of scolding tin workpiece, and scolding tin workpiece is fixed in workpiece fixed hole position, prevent scolding tin workpiece from It falls off in workpiece fixed hole position.

Detailed description of the invention

Fig. 1 is the SMT laser steel mesh top view figure that the utility model one kind can reduce PCB deflection；

Fig. 2 is that the utility model one kind can reduce in SMT laser steel mesh Fig. 1 of PCB deflection cross-sectional view at A-A；

Fig. 3 is that the utility model one kind can reduce enlarged structure signal at B in SMT laser steel mesh Fig. 2 of PCB deflection Figure；

Fig. 4 is the SMT laser steel mesh scolding tin Workpiece structure schematic diagram that the utility model one kind can reduce PCB deflection；

Fig. 5 is the SMT laser steel mesh workpiece fixinig plate structural schematic diagram that the utility model one kind can reduce PCB deflection.

In figure: 1, fixed outline border, 2, steel mesh main body, 3, scolding tin hole location, 4, scolding tin workpiece, 5, workpiece fixed hole position, 6, work Part fixinig plate.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: one kind can reduce the SMT laser steel of PCB deflection Net, including fixed outline border 1, fix on outline border 1 and offer rectangular through-hole, and the steel mesh master of rectangle is equipped in fixed 1 through-hole of outline border Body 2, the workpiece fixed hole position 5 of " work " shape is uniformly provided in steel mesh main body 2, and 2 lower end of steel mesh main body and fixed 1 lower end of outline border exist In same horizontal line, the steel mesh main body 2 of this structure and fixed 1 lower end of outline border are in same horizontal line, can guarantee steel in this way Host's body 2 and fixed outline border 1 are in horizontal state on workpiece to be processed, prevent steel mesh main body 2 and fixation outline border 1 with it is to be added There is biggish gap in work workpiece, improves the stability of steel mesh main body 2 and fixed outline border 1, is equipped with " T " in workpiece fixed hole position 5 The scolding tin workpiece 4 of shape offers scolding tin hole location 3 in scolding tin workpiece 4, and 4 lower end outer wall of scolding tin workpiece offers screw thread, and welds 4 thread jacket of tin workpiece is equipped with circular workpiece fixinig plate 6, and the center of the center line and scolding tin workpiece 4 of scolding tin hole location 3 is in On same straight line, the scolding tin hole location 3 of this structure is located on the center line of scolding tin workpiece 4, and such scolding tin hole location 3 is in fixed tin cream When in vertical state, keep the tin cream stress in scolding tin hole location 3 relatively uniform, steel mesh main body 2 be detached from tin cream When, it is ensured that tin cream it is complete, 4 outer shape of scolding tin workpiece and the interior shape of workpiece fixed hole position 5 match, and weld The height of tin workpiece 4 is equal with the height of workpiece fixed hole position 5, and the scolding tin workpiece 4 of this structure can be completely into solid to workpiece Determine in hole location 5, if worn in the scolding tin hole location 3 on scolding tin workpiece 4, only needs to change new scolding tin workpiece 4 i.e. Can, facilitate later maintenance, workpiece fixinig plate 6 is located at the lower end of fixed hole position 5, offers threaded hole, and work in workpiece fixinig plate 6 Screw thread in 6 threaded hole of part fixinig plate matches with 4 external screw-thread of scolding tin workpiece, and the workpiece fixinig plate 6 of this structure can cover Scolding tin workpiece 4 can be secured firmly in workpiece fixed hole position 5 by the lower end of scolding tin workpiece 4 in this way, prevent scolding tin workpiece 4 from It falls off in workpiece fixed hole position 5,6 outer shape of workpiece fixinig plate matches with 5 lower end outer shape of workpiece fixed hole position, this knot The workpiece fixinig plate 6 of structure can be stuck in 5 lower end of workpiece fixed hole position, do not interfere with putting for steel mesh main body 2 in this way, prevent work Steel mesh main body 2 is jacked up the situation for skew occur by part fixinig plate 6.

Working principle:, first will be outside the fixation of the device when the SMT laser steel mesh of PCB deflection can be reduced using this Frame 1 is placed on the workpiece for needing to process, and is registered to the scolding tin hole location 3 in steel mesh main body 2 on workpiece, later can be by tin cream It is filled into scolding tin hole location 3, then struck off by scraper plate, directly takes steel mesh main body 2 from workpiece after then waiting tin cream solidification Under, it, can be first by corresponding workpiece fixinig plate 6 from scolding tin work if there is uneven situation on 3 inner wall of scolding tin hole location It removes on part 4, then new scolding tin workpiece 4 is installed in the workpiece fixed hole position 5 of replacement again, then pass through workpiece fixinig plate 6 Scolding tin workpiece 4 is fixed, the steel mesh main body 2 of the device can be placed on to the processing for carrying out tin cream on workpiece again later, It safeguards simple and convenient, avoids tin cream from excessive deformation occur, to complete a series of activities.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims

1. the SMT laser steel mesh that one kind can reduce PCB deflection, it is characterised in that: including fixing outline border (1), outside the fixation Rectangular through-hole is offered on frame (1), and the steel mesh main body (2) of rectangle, the steel mesh main body are equipped in fixed outline border (1) through-hole (2) it is uniformly provided with the workpiece fixed hole position (5) of " work " shape on, is equipped with " T " shaped scolding tin work in the workpiece fixed hole position (5) Part (4), the scolding tin workpiece (4) is interior to be offered scolding tin hole location (3), and scolding tin workpiece (4) lower end outer wall offers screw thread, and Scolding tin workpiece (4) thread jacket is equipped with circular workpiece fixinig plate (6), and the workpiece fixinig plate (6) is located at workpiece fixation hole The lower end of position (5).

2. the SMT laser steel mesh that one kind according to claim 1 can reduce PCB deflection, it is characterised in that: the steel mesh Main body (2) lower end and fixed outline border (1) lower end are in the same horizontal line.

3. the SMT laser steel mesh that one kind according to claim 1 can reduce PCB deflection, it is characterised in that: the scolding tin The center line of hole location (3) and the center of scolding tin workpiece (4) are on the same line.

4. the SMT laser steel mesh that one kind according to claim 1 can reduce PCB deflection, it is characterised in that: the scolding tin Workpiece (4) outer shape and the interior shape of workpiece fixed hole position (5) match, and the height of scolding tin workpiece (4) and workpiece are solid The height for determining hole location (5) is equal.

5. the SMT laser steel mesh that one kind according to claim 1 can reduce PCB deflection, it is characterised in that: the workpiece Threaded hole, and the screw thread in workpiece fixinig plate (6) threaded hole and scolding tin workpiece (4) external screw-thread phase are offered in fixinig plate (6) Matching.

6. the SMT laser steel mesh that one kind according to claim 1 can reduce PCB deflection, it is characterised in that: the workpiece Fixinig plate (6) outer shape matches with workpiece fixed hole position (5) lower end outer shape.