CN209845481U

CN209845481U - SMT vacuum printing jig

Info

Publication number: CN209845481U
Application number: CN201920247568.1U
Authority: CN
Inventors: 刘睿强; 林涛
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2019-12-24
Anticipated expiration: 2029-02-26

Abstract

The utility model relates to a surface mounting printing technology field, and an SMT vacuum printing tool is disclosed, including rectangle frame and the link of setting on the rectangle frame, the inside of rectangle frame is equipped with the movable plate of two vertical settings, the inside center department of rectangle frame transversely rotates and is connected with first bidirectional screw, the upper surface center department of two movable plates is the fixed block that is equipped with all, the lateral wall of two fixed blocks is respectively through the pole wall both sides threaded connection of first screw hole and second screw hole and first bidirectional screw, the inside transverse fixation of rectangle frame is equipped with two slide bars, two slide bars are the upper and lower distribution setting, the upper surface both ends of two movable plates are the fixed slider that is equipped with all. The utility model discloses can adjust the distance between the vacuum chuck according to not unidimensional printed circuit board to can realize quick, stable press from both sides printed circuit board tight fixed, improve the welding efficiency of equipment components and parts.

Description

SMT vacuum printing jig

Technical Field

The utility model relates to a surface mounting printing technology field especially relates to a SMT vacuum printing tool.

Background

The surface mounting technology of electronic circuit is a circuit mounting and connecting technology which mounts the surface mounting component without pins or short leads on the printed circuit board by the methods of reflow soldering or dip soldering, etc. The printing jig plays an important role in bearing and fixing the assembled components in the SMT printing process.

Traditional printing jig is pressing from both sides the fastening to printed circuit board regularly, appears printed circuit board easily and appears the phenomenon of rocking, moreover because the size of printed circuit board is not unified to reduced and pressed from both sides tight fixed efficiency to it, finally appear assembling the bad problem of components and parts solder joint, can produce the a large amount of wastes of resource, also can cause the increase of SMT printing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and in prior art pressing from both sides the fastening regularly to printed circuit board, appearing the phenomenon that printed circuit board appears rocking easily, moreover because the size of the printed circuit board is non-uniform to reduced and pressed from both sides tight fixed efficiency to it, finally appear assembling the bad problem of components and parts solder joint, and a SMT vacuum printing jig that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an SMT vacuum printing jig comprises a rectangular frame and a connecting frame arranged on the rectangular frame, wherein two movable plates which are longitudinally arranged are arranged inside the rectangular frame, the center of the inside of the rectangular frame is transversely and rotatably connected with a first bidirectional screw, fixed blocks are fixedly arranged at the centers of the upper surfaces of the two movable plates, the side walls of the two fixed blocks are respectively in threaded connection with the two sides of the rod wall of the first bidirectional screw through a first threaded hole and a second threaded hole, two sliding rods are transversely and fixedly arranged inside the rectangular frame and are distributed up and down, sliding blocks are fixedly arranged at the two ends of the upper surface of the two movable plates, the side walls of the two sliding blocks at the same side are respectively in sliding connection with the rod wall of the sliding rod through sliding holes, strip grooves are formed in the lower surfaces of the two movable plates along the length direction of the lower surfaces of the two movable plates, and second bidirectional screws are rotatably connected inside the two strip grooves, one end of each of the two second bidirectional screws penetrates through the outer portions of the two moving plates respectively, the two moving blocks are symmetrically and slidably connected to the inner portions of the two strip-shaped grooves, the side walls of the two moving blocks located in the two strip-shaped grooves are in threaded connection with the two sides of the rod wall of each second bidirectional screw through third threaded holes and fourth threaded holes, and vacuum suckers are fixedly arranged on the lower surfaces of the two moving blocks located in the two strip-shaped grooves through fixing frames.

Preferably, two opposite inner side walls of the rectangular frame are fixedly provided with first rolling bearings, and two ends of the first bidirectional screw are rotatably connected with the inner side walls of the rectangular frame through the first rolling bearings.

Preferably, a gripping sleeve is fixedly arranged at the center of the rod wall of the first bidirectional screw rod.

Preferably, two the inside wall that the bar groove is relative all fixedly is equipped with second antifriction bearing, the both ends of second bidirectional screw rod all through second antifriction bearing respectively with two the lateral wall rotation of bar groove is connected.

Preferably, rotating wheels are fixedly arranged at one ends of the two second bidirectional screws, which are positioned outside the moving plate.

Preferably, rubber pads are fixedly arranged at four corners of the bottom of the rectangular frame.

Compared with the prior art, the utility model provides a SMT vacuum printing tool possesses following beneficial effect:

1. this SMT vacuum printing jig, through setting up the first bidirectional screw in rectangle frame inside, the first bidirectional screw of manual rotation, can make two movable plates relatively close to or keep away from, thereby can adjust the lateral distance between two vacuum chuck that are located on two movable plates, through setting up the second bidirectional screw on two movable plates, the second bidirectional screw of manual rotation, can make two movable plates relatively close to or keep away from, thereby can adjust the longitudinal distance between two vacuum chuck that are located on two movable plates, and then can adjust the distance between the vacuum chuck according to not unidimensional printed circuit board, finally can realize fast, the stable printed circuit board presss from both sides tightly fixedly, the welding efficiency of equipment components and parts has been improved.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can adjust the distance between the vacuum chuck according to not unidimensional printed circuit board to can realize quick, stable press from both sides printed circuit board tight fixed, improve the welding efficiency of equipment components and parts.

Drawings

Fig. 1 is a top view of an SMT vacuum printing jig according to the present invention;

fig. 2 is a schematic structural view of the side of the moving plate in fig. 1.

In the figure: the device comprises a rectangular frame 1, a connecting frame 2, a moving plate 3, a fixed block 4, a first bidirectional screw 5, a sliding block 6, a sliding rod 7, a second bidirectional screw 8, a moving block 9, a fixed frame 10, a vacuum chuck 11, a gripping sleeve 12, a rotating wheel 13 and a rubber pad 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, an SMT vacuum printing jig comprises a rectangular frame 1 and a connecting frame 2 disposed on the rectangular frame 1, the rectangular frame 1 is fixedly connected with an external mechanical arm through the connecting frame 2, two moving plates 3 longitudinally disposed are disposed inside the rectangular frame 1, a first bidirectional screw 5 is laterally rotatably connected to the center of the inside of the rectangular frame 1, first rolling bearings are fixedly disposed on two opposite inner side walls of the rectangular frame 1, two ends of the first bidirectional screw 5 are rotatably connected with the inner side walls of the rectangular frame 1 through the first rolling bearings, a gripping sleeve 12 is fixedly disposed at the center of the rod wall of the first bidirectional screw 5, fixed blocks 4 are fixedly disposed at the centers of the upper surfaces of the two moving plates 3, the side walls of the two fixed blocks 4 are respectively in threaded connection with two sides of the rod wall of the first bidirectional screw 5 through a first threaded hole and a second threaded hole, two sliding rods 7 are laterally fixedly disposed inside the rectangular frame 1, two slide bars 7 are the setting that distributes from top to bottom, the upper surface both ends of two movable plates 3 all are fixed and are equipped with slider 6, the lateral wall of two sliders 6 of homonymy all passes through slide opening and slide bar 7's pole wall sliding connection, the bar groove has all been seted up along its length direction to the lower surface of two movable plates 3, the inside in two bar grooves is all rotated and is connected with second bidirectional screw 8, the inside wall that two bar grooves are relative all fixed and is equipped with second antifriction bearing, the both ends of second bidirectional screw 8 all rotate with the lateral wall in two bar grooves through second antifriction bearing respectively and is connected, and the outside of two movable plates 3 is run through respectively to two one end of second bidirectional screw 8, two second bidirectional screw 8 lie in the outside one end of movable plate 3 and all fixedly are equipped with runner 13, the inside equal symmetric sliding connection in two bar grooves has two movable blocks 9, the lateral wall of two movable blocks 9 that lie in two bar inslot portion all passes through third screw hole and fourth Wall both sides threaded connection, the lower surface that is located two inside movable blocks 9 of two bar grooves all is equipped with vacuum chuck 11 through mount 10 is fixed, vacuum chuck 11 is connected with outside vacuum pump, and the bottom four corners department of rectangle frame 1 all fixedly is equipped with rubber pad 14, and when rectangle frame 1 lapse and printed circuit board contact, rubber pad 14 can provide a cushioning effect for rectangle frame 1.

The utility model discloses in, during the use, the first bidirectional screw of operator manual rotation 5, can make two movable plates 3 be close to relatively or keep away from, thereby can adjust the transverse distance that is located between two vacuum chuck 11 on two movable plates 3, then manual rotation second bidirectional screw 8, can make two movable plates 9 be close to relatively or keep away from, thereby can adjust the longitudinal distance that is located between two vacuum chuck 11 on two movable plates 3, and then can adjust the distance between the vacuum chuck 11 according to the not unidimensional printed circuit board, finally can realize fast, the stable printed circuit board presss from both sides tightly fixedly, the welding efficiency of equipment components and parts has been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The SMT vacuum printing jig comprises a rectangular frame (1) and a connecting frame (2) arranged on the rectangular frame (1), and is characterized in that two vertically-arranged moving plates (3) are arranged in the rectangular frame (1), a first bidirectional screw (5) is transversely and rotatably connected to the center of the interior of the rectangular frame (1), fixed blocks (4) are fixedly arranged at the centers of the upper surfaces of the two moving plates (3), the side walls of the two fixed blocks (4) are respectively in threaded connection with the two sides of the rod wall of a first bidirectional screw (5) through a first threaded hole and a second threaded hole, two sliding rods (7) are transversely and fixedly arranged in the rectangular frame (1), the two sliding rods (7) are vertically distributed, sliding blocks (6) are fixedly arranged at the two ends of the upper surface of the two moving plates (3), the side walls of the two sliding blocks (6) at the same side are both in sliding connection with the rod wall of the sliding rods (7) through sliding holes, the lower surfaces of the two moving plates (3) are provided with strip-shaped grooves along the length direction of the lower surfaces, the interiors of the two strip-shaped grooves are connected with second bidirectional screws (8) in a rotating mode, one ends of the two second bidirectional screws (8) penetrate through the outsides of the two moving plates (3) respectively, the interiors of the two strip-shaped grooves are connected with two moving blocks (9) in a sliding mode symmetrically, the side walls of the two moving blocks (9) located in the two strip-shaped grooves are connected with the two sides of the rod wall of the second bidirectional screw (8) through third threaded holes and fourth threaded holes in a threaded mode, and the lower surfaces of the two moving blocks (9) located in the two strip-shaped grooves are fixedly provided with vacuum suckers (11) through fixing frames (10).

2. An SMT vacuum printing jig according to claim 1, wherein first rolling bearings are fixedly arranged on two opposite inner side walls of the rectangular frame (1), and two ends of the first bidirectional screw (5) are rotatably connected with the inner side walls of the rectangular frame (1) through the first rolling bearings.

3. An SMT vacuum printing jig according to claim 1, wherein a gripping sleeve (12) is fixedly disposed at a center of a rod wall of the first bi-directional screw (5).

4. An SMT vacuum printing jig according to claim 1, wherein second rolling bearings are fixedly arranged on inner side walls opposite to the two strip-shaped grooves, and two ends of the second bidirectional screw (8) are rotatably connected with the side walls of the two strip-shaped grooves through the second rolling bearings respectively.

5. An SMT vacuum printing jig according to claim 1, wherein one end of each of the two second bidirectional screws (8) located outside the moving plate (3) is fixedly provided with a rotating wheel (13).

6. An SMT vacuum printing jig according to claim 1, wherein rubber pads (14) are fixedly arranged at four corners of the bottom of the rectangular frame (1).