CN214445864U

CN214445864U - Face mask mounting fixture capable of realizing conversion positioning by means of magnetic attraction

Info

Publication number: CN214445864U
Application number: CN202120015974.2U
Authority: CN
Inventors: 朱剑
Original assignee: Nanjing Borui Meishi Photoelectric Technology Co ltd
Current assignee: Nanjing Borui Meishi Photoelectric Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-10-22
Anticipated expiration: 2031-01-05

Abstract

The utility model provides a rely on magnetism to inhale face guard sectional fixture of conversion location, inhale the anchor clamps including PCB locating plate, face guard installation, be equipped with first fixed establishment, PCB board, fixed plate and fixed strip on the PCB locating plate, be equipped with second fixed establishment, first bellying, vacuum tray, bullet ejector pin and face guard on the face guard installation inhale the anchor clamps, a face guard surface is equipped with the recess, face guard another surface is equipped with the second bellying, the face guard place in the face guard installation inhales the anchor clamps upper surface, the second bellying with the mutual butt in first bellying upper end. The utility model discloses can improve the installation accuracy of face guard and PCB board fluorescent tube.

Description

Face mask mounting fixture capable of realizing conversion positioning by means of magnetic attraction

Technical Field

The utility model relates to a projection display equipment technical field, concretely relates to rely on magnetism to inhale face guard sectional fixture who changes location.

Background

Present glass shows projection display screen is in order to reach better projection effect, need accurate will be used for the projective face guard accurate install the lamp pearl on, the position of face guard installation has the deviation will cause the inconsistent of whole lamp plate back colour of lighting with the position of lamp pearl to influence the display effect of big screen.

The existing method is to precisely cut the PCB shape, position the mask by the PCB shape, and then mount the mask on the PCB lamp tube.

The accuracy of the face guard installation is improved to a certain extent by the existing installation mode, but the accuracy is guaranteed by the fact that machining errors of the appearance of the PCB are small enough, the lamp tube is high in position deviation consistency relative to the appearance of the PCB, the ideal installation effect can be achieved, more or less errors can exist in both human factors and equipment factors in actual production, and the ideal installation effect or certain difficulty can be achieved.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing a rely on magnetism to inhale face guard sectional fixture who changes location, for solving above-mentioned technical problem, the utility model discloses a following technical scheme realizes:

a face mask mounting clamp depending on magnetic suction conversion positioning comprises a PCB positioning plate and a face mask mounting air suction clamp;

the PCB positioning plate is provided with a first fixing mechanism, a plurality of PCB plates, a fixing plate and fixing strips, the fixing strips are fixedly connected to the upper surface of the PCB positioning plate, the PCB plates are placed on the upper surface of the PCB positioning plate, one surface of each PCB plate, provided with a lamp tube, is abutted against the upper surface of the PCB positioning plate, the fixing plate is fixedly connected with the PCB plates, and the first fixing mechanism is connected with the fixing plate;

the mask installation air suction fixture is provided with a second fixing mechanism, a first bulge, a vacuum air suction tray, an ejection pin and a mask, the upper end of the first bulge is a conical surface, the upper end of the first bulge is provided with a through hole, the through hole is communicated with the upper end of the first bulge and the lower surface of the mask installation air suction fixture, the ejection pin is connected with the upper surface of the mask installation air suction fixture through an elastic piece, and the vacuum air suction tray is fixedly connected to the lower surface of the mask installation air suction fixture;

the mask is characterized in that more than two grooves are formed in one surface of the mask, a second protruding portion is arranged on the other surface of the mask, the mask is placed on the upper surface of the mask installation air suction fixture, and the upper ends of the second protruding portion and the first protruding portion are mutually abutted.

Advantageously, the first fixing mechanism comprises a first fixing seat, a second fixing seat, a third fixing seat and a fine positioning block, a magnet is embedded in the fine positioning block, two fine positioning blocks are embedded in the first fixing seat, one fine positioning block is embedded in the second fixing seat, and one fine positioning block is embedded in the third fixing seat;

the second fixing mechanism comprises a fourth fixing seat, a fifth fixing seat, a sixth fixing seat and the fine positioning blocks, two fine positioning blocks are embedded in the fourth fixing seat, one fine positioning block is embedded in the fifth fixing seat, and one fine positioning block is embedded in the sixth fixing seat;

and the side wall of the fixed plate is fixedly connected with a magnetic iron block.

Beneficially, the lower surface of the PCB positioning plate is fixedly connected with an air cylinder, and one end of a piston rod on the air cylinder penetrates through the PCB positioning plate and abuts against one surface of the PCB.

Advantageously, the PCB board and the fixing board are connected by screws, and screw washers are sleeved on the screws.

Advantageously, said elastic member is a spring.

The utility model discloses it does to have following beneficial effect:

1. the mask and the mask installation air suction clamp are freely guided and attached by the first bulge, the through hole and the vacuum air suction tray by utilizing the vacuum principle, and the position of the mask is accurately positioned;

2. the mounting position of the PCB and the PCB positioning plate is unique, the mounting position of the mask and the mask mounting air suction fixture is unique, the fixing plate is equivalent to a medium, the magnetic attraction of the magnetic iron block and the magnet is realized, the uniqueness of the mounting position of the fixing plate and the PCB positioning plate is ensured, the uniqueness of the mounting position of the fixing plate and the mask mounting air suction fixture is also ensured, thereby ensuring the accuracy of the mask and the installation of the lamp tube on the PCB, reducing the requirement of the product on precision machining, reducing the production cost, improving the mounting accuracy of the product, and improving the consistency of the product.

Drawings

The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.

Fig. 1 is a schematic structural view of the PCB positioning board of the present invention;

fig. 2 is a schematic structural view of the PCB positioning board according to the present invention in one working state;

fig. 3 is a schematic structural view of the PCB positioning board according to the present invention in one working state;

FIG. 4 is a schematic structural view of the mask installation suction jig of the present invention;

fig. 5 is an enlarged schematic view of fig. 4 at a according to the present invention;

fig. 6 is a schematic structural view of the PCB board and the fixing board of the present invention;

fig. 7 is a schematic view of the mask of the present invention;

fig. 8 is a schematic view of the structure of fig. 7 from another angle according to the present invention.

Reference numerals: the PCB positioning plate comprises a PCB positioning plate 1, a first fixing seat 2, a second fixing seat 3, a third fixing seat 4, a fine positioning block 5, a magnet 6, a PCB 7, a fixing plate 8, a screw 81, a screw gasket 82, a cylinder 9, a magnetic iron block 10, a mask installation air suction clamp 11, an installation area 111, a positioning area 112, a first protruding portion 113, a through hole 114, a vacuum air suction tray 12, a fourth fixing seat 13, a fifth fixing seat 14, a sixth fixing seat 15, an elastic jacking pin 16, a mask 17, a groove 171, a second protruding portion 172 and a fixing strip 18.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

As shown in fig. 1-7, a mask mounting fixture which is switched and positioned by magnetic attraction comprises a PCB positioning plate 1 and a mask mounting suction fixture 11;

the PCB positioning plate 1 is provided with a first fixing mechanism, a plurality of PCB plates 7, a fixing plate 8 and a fixing strip 18, the fixing strip 18 is fixedly connected to the upper surface of the PCB positioning plate 1, the PCB plates 7 are placed on the upper surface of the PCB positioning plate 1, one surface of each PCB plate 7 provided with a lamp tube is abutted against the upper surface of the PCB positioning plate 1, the fixing plate 8 is fixedly connected with the PCB plates 7, and the first fixing mechanism is connected with the fixing plate 8;

the mask installation air suction clamp 11 is provided with a second fixing mechanism, a first boss 113, a vacuum air suction tray 12, an ejection pin 16 and a mask 17, the upper end of the first boss 113 is a conical surface, the upper end of the first boss 113 is provided with a through hole 114, the through hole 114 is communicated with the upper end of the first boss 113 and the lower surface of the mask installation air suction clamp 11, the ejection pin 16 is connected with the upper surface of the mask installation air suction clamp 11 through an elastic part, and the vacuum air suction tray 12 is fixedly connected with the lower surface of the mask installation air suction clamp 11;

more than two grooves 171 are formed in one surface of the face mask 17, a second protruding portion 172 is arranged on the other surface of the face mask 17, the face mask 17 is placed on the upper surface of the face mask installation air suction clamp 11, and the upper ends of the second protruding portion 172 and the first protruding portion 113 are abutted to each other.

According to an optional embodiment of the present invention, the first fixing mechanism includes a first fixing seat 2, a second fixing seat 3, a third fixing seat 4 and a fine positioning block 5, a magnet 6 is embedded in the fine positioning block 5, two fine positioning blocks 5 are embedded on the first fixing seat 2, one fine positioning block 5 is embedded on the second fixing seat 3, and one fine positioning block 5 is embedded on the third fixing seat 4;

the second fixing mechanism comprises a fourth fixing seat 13, a fifth fixing seat 14, a sixth fixing seat 15 and the fine positioning blocks 5, two fine positioning blocks 5 are embedded on the fourth fixing seat 13, one fine positioning block 5 is embedded on the fifth fixing seat 14, and one fine positioning block 5 is embedded on the sixth fixing seat 15;

and a magnetic iron block 10 is fixedly connected to the side wall of the fixed plate 8.

According to the utility model discloses an in an optional embodiment, the surface rigid coupling has cylinder 9 under PCB locating plate 1, piston rod one end on the cylinder 9 runs through PCB locating plate 1 with 7 mutual butts in surface of PCB board.

According to the utility model discloses an optional embodiment, PCB board 7 with fixed plate 8 passes through the screw 81 connection, the cover is equipped with screw gasket 82 on the screw 81.

In an alternative embodiment of the invention, the elastic element is a spring.

The implementation process comprises the following steps: at first place PCB board 7 at 1 upper surface of PCB locating plate, PCB board 7 is equipped with the one side of fluorescent tube and the mutual butt of 1 upper surface of PCB locating plate, thereby the fluorescent tube card on PCB board 7 is fixed a position between a plurality of fixed strips 18, put fixed plate 8 on PCB board 7 upper surface again, magnet 6 in the smart locating piece 5 can carry out the actuation to magnetism iron plate 10 on the fixed plate 8, make fixed plate 8 fix at the current position, reuse screw 81 and screw gasket 82, connect PCB board 7 and fixed plate 8, then start cylinder 9, piston rod on the cylinder 9 is ejecting PCB board 7 and fixed plate 8, make fixed plate 8 break away from the fixed of a plurality of smart locating pieces 5.

Placing the face of the face mask 17 provided with the second protruding part 172 on the positioning area 112 in the mounting area 111, contacting the second protruding part 172 with the upper end of the first protruding part 113, connecting the vacuum suction tray 12 with an external vacuum pump, starting the vacuum pump to form negative pressure inside the vacuum suction tray 12, freely guiding and tightly attaching the second protruding part 172 of the face mask 17 with the upper end of the first protruding part 113, firmly attaching all the face masks 17 on the plurality of first protruding parts 113, placing the mutually connected PCB 7 and the fixing plate 8 on the upper surface of the face mask mounting suction fixture 11, placing the face of the PCB 7 provided with the lamp tube facing the upper surface of the mounting suction fixture 11, supporting the PCB 7 by the elastic top pin 16, avoiding the face mask 17 from contacting the lamp tube on the PCB 7, magnetically fixing the fixing plate 8 by the fine positioning blocks 5 on the fourth fixing seat 13, the fifth fixing seat 14 and the sixth fixing seat 15, pressing the PCB 7 and the fixing plate 8 downwards by using a pressing device, the spring on the ejection pin 16 is gradually compressed, the lamp tube on the PCB 7 is contacted with the mask 17 to complete the pressing, the vacuum pump 12 stops working, the pressing device returns, and the mask 17 and the PCB 7 are completely installed.

The pressing device may be a press or a press cylinder.

The utility model utilizes the vacuum principle to lead the face mask 17 to be freely guided and attached to the face mask mounting air suction clamp 11 through the first convex part 113, the through hole 114 and the vacuum air suction tray 12, and the position of the face mask 17 is accurately positioned; the mounting position of the PCB 7 and the PCB positioning plate 1 is unique, the mounting position of the mask 17 and the mask mounting air suction clamp 11 is unique, the fixing plate 8 is equivalent to a medium, the magnetic attraction of the magnetic iron block 10 and the magnet 6 is realized, the mounting position of the fixing plate 8 and the PCB positioning plate 1 is unique, the mounting position of the fixing plate 8 and the mask mounting air suction clamp 11 is unique, thereby ensuring the mounting precision of the mask 17 and the lamp tube on the PCB 7, reducing the requirement of the product on precision machining, reducing the production cost, improving the mounting precision of the product, and improving the consistency of the product.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mask mounting clamp depending on magnetic attraction conversion positioning is characterized by comprising a PCB positioning plate (1) and a mask mounting air suction clamp (11);

the PCB positioning plate (1) is provided with a first fixing mechanism, a PCB (7), a fixing plate (8) and fixing strips (18), more than two fixing strips (18) are fixed on the upper surface of the PCB positioning plate (1), the PCB (7) is abutted against the upper surface of the PCB positioning plate (1), the PCB (7) is matched with the fixing strips on the PCB positioning plate (1), the fixing plate (8) is fixedly connected with the PCB (7), and the first fixing mechanism is connected with the fixing plate (8);

the mask installation air suction fixture (11) is provided with a second fixing mechanism, the bottom of the mask installation air suction fixture (11) is connected with a vacuum air suction tray (12), the upper surface of the mask installation air suction fixture (11) is provided with an installation area (111), more than two positioning areas (112) are arranged in the installation area (111), more than two first protruding parts (113) are arranged on the positioning areas (112), the upper ends of the first protruding parts (113) are conical surfaces, the upper ends of the first protruding parts (113) are provided with through holes (114), and the through holes (114) are communicated with the upper ends of the first protruding parts (113) and the lower surface of the mask installation air suction fixture (11);

the upper surface of the mask installation air suction clamp (11) is also provided with an ejection pin (16) and a mask (17), and the ejection pin (16) is fixed on the upper surface of the mask installation air suction clamp (11) through an elastic piece;

two or more grooves (171) are formed in one surface of the face mask (17), two or more second protruding portions (172) are arranged on the other surface of the face mask (17), the face mask (17) abuts against the mounting area (111), and the upper ends of the second protruding portions (172) and the first protruding portions (113) are mutually abutted.

2. The mask mounting fixture based on magnetic suction conversion positioning as claimed in claim 1, wherein the first fixing mechanism comprises a first fixing seat (2), a second fixing seat (3), a third fixing seat (4) and more than two fine positioning blocks (5), a magnet (6) is embedded in each fine positioning block (5), two fine positioning blocks (5) are embedded in the first fixing seat (2), one fine positioning block (5) is embedded in the second fixing seat (3), one fine positioning block (5) is embedded in the third fixing seat (4), and the first fixing seat (2), the second fixing seat (3) and the third fixing seat (4) are respectively and fixedly connected to three corners of the upper surface of the PCB positioning plate (1);

the second fixing mechanism comprises a fourth fixing seat (13), a fifth fixing seat (14), a sixth fixing seat (15) and more than two fine positioning blocks (5), the fourth fixing seat (13) is embedded with the two fine positioning blocks (5), the fifth fixing seat (14) is embedded with one fine positioning block (5), the sixth fixing seat (15) is embedded with one fine positioning block (5), and the fourth fixing seat (13), the fifth fixing seat (14) and the sixth fixing seat (15) are fixedly connected to three corners of the upper surface of the mask installation air suction clamp (11) respectively;

and the side wall of the fixed plate (8) is fixedly connected with a magnetic iron block (10).

3. The mask mounting fixture based on magnetic suction switching positioning as claimed in claim 2, wherein the lower surface of the PCB positioning plate (1) is fixedly connected with a cylinder (9), and one end of a piston rod on the cylinder (9) penetrates through the PCB positioning plate (1) and one surface of the PCB board (7) to abut against each other.

4. The mask mounting fixture of claim 3, wherein the PCB (7) is connected to the fixing plate (8) by a screw (81), and the screw (81) is sleeved with a screw gasket (82).

5. The mask installation jig of claim 4 wherein the resilient member is a spring.