CN210137507U

CN210137507U - Prevent pressing from both sides limit structure of type SMT chip mounter that inclines

Info

Publication number: CN210137507U
Application number: CN201920911325.3U
Authority: CN
Inventors: 张小冬
Original assignee: Changxing Chenyuan Electronic Technology Co ltd
Current assignee: Changxing Chenyuan Electronic Technology Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-03-10
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a prevent double-layered limit structure of type SMT chip mounter that inclines, including the anchor clamps, the fixed orifices has all been seted up to anchor clamps top both sides, the inside embedding of fixed orifices has clamping screw, clamping screw has cup jointed the ejector pin inside, clamping screw outside one side is installed the locating pin, the ejector pin bottom is installed fixed splint, fixed splint bottom is seted up the fixed slot, fixed slot internally mounted has L type clamp plate, the utility model discloses the structure is scientific and reasonable, and convenient to use is provided with fixed orifices, clamping screw, ejector pin and locating pin, has solved the problem that traditional anchor clamps need frequently rotate clamping screw, and the device can carry out the fixed limit of double-layered fast to printed circuit board of different sizes, is provided with fixed splint and L type clamp plate, has improved the fastness of printed circuit board installation on the bottom plate, avoids printed circuit board position to take place to rotate the skew, the SMT patch quality of the printed circuit board is affected.

Description

Prevent pressing from both sides limit structure of type SMT chip mounter that inclines

Technical Field

The utility model relates to a SMT chip mounter technical field specifically is a prevent pressing from both sides limit structure of type SMT chip mounter that inclines.

Background

An SMT chip mounter is generally used for completing chip mounting in modes of reflow soldering or dip soldering, the printed circuit boards are often required to be clamped and fixed in the chip mounting process, clamping structures of the SMT chip mounter in the prior art are disclosed in a large quantity, however, the clamping structures of the SMT chip mounter (patent publication No. CN 202889800U) cannot rapidly clamp and fix the printed circuit boards in different sizes in use, the device is poor in use convenience, the positions of the printed circuit boards are prone to rotating and shifting, and the SMT chip quality of the printed circuit boards is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent double-layered limit structure of type SMT chip mounter that inclines, the double-layered limit structure that can effectively solve current SMT chip mounter that proposes in the above-mentioned background art exists the device and can not carry out the contained limit fast to the printed circuit board of equidimension not fixed when using, and the convenience that the device used is relatively poor and the printed circuit board position takes place to rotate the skew easily, influences the problem of printed circuit board's SMT paster quality.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a prevent double-layered limit structure of type SMT chip mounter that inclines, includes anchor clamps, the fixed orifices has all been seted up to anchor clamps top both sides, the inside embedding of fixed orifices has clamping screw, clamping screw has inside the ejector pin of having cup jointed, clamping screw installs the locating pin in outside one side, the constant head tank has evenly been seted up to ejector pin outer wall one side, the inside embedding of locating pin has the dead lever, the fixture block is installed on the dead lever top, through reset spring fixed connection between the dead lever outside and the locating pin inner wall, solid fixed splint are installed to the ejector pin bottom, the fixed slot has been seted up to solid fixed splint bottom, fixed slot internally mounted has L type clamp plate, through support column fixed connection between L type clamp plate and the fixed slot, compression spring is installed through.

Preferably, the bottom plate is installed to inside bottom of anchor clamps, the rubber tie plate is installed through the nut in bottom plate top.

Preferably, the fixed clamping plate is fixedly connected with the ejector rod through a fixed cylinder, and a thread groove is formed in the fixed cylinder.

Preferably, a sliding groove is formed in one side of the outer wall of the ejector rod, rollers are uniformly arranged inside the sliding groove, and a silica gel gasket is sleeved outside the rollers.

Preferably, the inner diameter of the positioning groove is equal to the outer diameter of the fixture block, and the fixture block is in a semi-ellipsoidal shape.

Preferably, the bottom end of the L-shaped pressing plate is pasted with a rubber gasket, and anti-skid lines are uniformly arranged on the surface of the rubber gasket.

Preferably, handles are installed on two sides of the top end of the clamping screw, and a sponge cushion cover is sleeved outside each handle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with the fixed orifices, press from both sides tight screw, the ejector pin, the constant head tank, locating pin and reset spring, install through selecting corresponding fixed orifices to pressing from both sides tight screw, and promote the ejector pin and move in pressing from both sides tight screw inside, fix the ejector pin by reset spring, constant head tank and locating pin, rotate simultaneously and press from both sides tight screw and finely tune, thereby solved the problem that traditional anchor clamps need frequently rotate and press from both sides tight screw, the while device can press from both sides the limit fast to the printed circuit board of equidimension and fix, it is convenient to use.

2. Be provided with solid fixed splint, support column, fixed slot, L type clamp plate and compression spring, the fixed slot through solid fixed splint bottom is fixed L type clamp plate to the inside compression spring of cooperation support column supports L type clamp plate, thereby has improved the fastness of printed circuit board installation on the bottom plate, avoids printed circuit board position to take place to rotate the skew, influences printed circuit board's SMT paster quality.

3. Be provided with spout, gyro wheel and silica gel gasket, the roll through the inside gyro wheel of spout has reduced the friction between ejector pin outer wall and the clamping screw inner wall, has avoided the ejector pin when frequently promoting, receives wearing and tearing deformation, has prolonged the actual life of ejector pin.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the installation structure of the ejector rod of the present invention;

FIG. 3 is a schematic structural view of the ejector rod of the present invention;

fig. 4 is a schematic view of the mounting structure of the L-shaped pressing plate of the present invention.

Reference numbers in the figures: 1. a clamp; 2. a fixing hole; 3. clamping the screw rod; 4. a top rod; 5. a handle; 6. positioning pins; 7. fixing the clamping plate; 8. a base plate; 9. positioning a groove; 10. a fixed cylinder; 11. fixing the rod; 12. a clamping block; 13. a return spring; 14. a chute; 15. a roller; 16. a silica gel gasket; 17. fixing grooves; 18. an L-shaped pressing plate; 19. a support pillar; 20. compressing the spring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a clamping edge structure of an anti-tilting SMT chip mounter, which comprises a clamp 1, wherein both sides of the top end of the clamp 1 are provided with fixing holes 2, a clamping screw 3 is embedded in each fixing hole 2, a mandril 4 is sleeved in each clamping screw 3, both sides of the top end of each clamping screw 3 are provided with a handle 5, a sponge cushion cover is sleeved outside each handle 5, a worker can conveniently rotate the clamping screw 3 through the handle 5, the comfort of the handle 5 during rotation is improved through the sponge cushion cover, one side of the outer part of each clamping screw 3 is provided with a positioning pin 6, one side of the outer wall of each mandril 4 is uniformly provided with a positioning groove 9, a fixing rod 11 is embedded in each positioning pin 6, the top end of each fixing rod 11 is provided with a clamping block 12, the tightness of connection between each clamping block 12 and the positioning, the clamping block 12 is prevented from falling off, the firmness of the clamping of the fixing clamping plate 7 on the printed circuit board is influenced, the inner diameter of the positioning groove 9 is equal to the outer diameter of the clamping block 12, and the clamping block 12 is semi-ellipsoidal.

The outer part of a fixed rod 11 is fixedly connected with the inner wall of a positioning pin 6 through a reset spring 13, the bottom end of a mandril 4 is provided with a fixed splint 7, the bottom end of the inner part of a clamp 1 is provided with a bottom plate 8, the top end of the bottom plate 8 is provided with a rubber cushion plate, a printed circuit board in the clamp 1 can be supported through the bottom plate 8 and the rubber bottom plate, the bottom end of the printed circuit board is prevented from being worn when the clamping edge is fixed, the firmness of the installation of the fixed splint 7 at the bottom end of the mandril 4 is improved, the fixed splint 7 is convenient to take down for maintenance and replacement, the convenience in use of the device is improved, the fixed splint 7 is fixedly connected with the mandril 4 through a fixed cylinder 10, the inner part of the fixed cylinder 10 is provided with a thread groove, the bottom end of the fixed splint 7 is provided with a fixed groove 17, the fastness of L type clamp plate 18 to printed circuit board top centre gripping has been increased through the anti-skidding line on rubber gasket surface, avoids L type clamp plate 18 bottom centre gripping pressure too big simultaneously, leads to the printed circuit board top to receive the damage, through support column 19 fixed connection between L type clamp plate 18 and the fixed slot 17, and compression spring 20 is installed through the spring fixing base to the inside bottom of support column 19.

The spout 14 has been seted up to ejector pin 4 outer wall one side, and the inside even gyro wheel 15 that installs of spout 14, gyro wheel 15 outside cup jointed silica gel gasket 16.

The utility model discloses a theory of operation and use flow: in the process of using the edge clamping structure of the anti-inclination SMT chip mounter, firstly, a printed circuit board to be mounted is placed through the top end of a bottom plate 8 inside a fixture 1, a fixing hole 2 at a corresponding position is selected to mount and fix a clamping screw 3 according to the size and specification of an actual printed circuit board, then a mandril 4 is pushed to push a fixing clamp plate 7 to the top end of the printed circuit board, a fixture block 12 at the top end of a fixing rod 11 is added into a positioning groove 9 under the action of a positioning pin 6 and a positioning reset spring 13, the mandril 4 is fixed, the clamping screw 3 is screwed through a handle 5, the mandril 4 and the fixing clamp plate 7 are moved downwards and finely adjusted, the edge clamping fixing work of the printed circuit board is completed, the problem that the clamping screw 3 needs to be frequently rotated by the traditional fixture 1 is solved, and meanwhile, the device can rapidly clamp edges of printed circuit boards of different sizes, the use is convenient;

then, when the ejector rod 4 moves in the clamping screw rod 3, the friction between the outer wall of the ejector rod 4 and the inner wall of the clamping screw rod 3 is reduced under the action of the rolling of the roller 15 in the sliding groove 14 and the silica gel gasket 16, the ejector rod 4 is prevented from being worn and deformed when being frequently pushed, and the actual service life of the ejector rod 4 is prolonged;

finally, fixed slot 17 through solid fixed splint 7 bottom is fixed L type clamp plate 18 to the inside compression spring 20 of cooperation support column 19 supports L type clamp plate 18, thereby has improved the fastness of printed circuit board installation on bottom plate 8, avoids printed circuit board position to take place to rotate the skew, influences printed circuit board's SMT paster quality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent pressing from both sides limit structure of type SMT chip mounter that inclines, includes anchor clamps (1), its characterized in that: the clamp is characterized in that fixing holes (2) are formed in two sides of the top end of the clamp (1), clamping screws (3) are embedded in the fixing holes (2), ejector rods (4) are sleeved in the clamping screws (3), positioning pins (6) are installed on one side of the outer portions of the clamping screws (3), positioning grooves (9) are evenly formed in one sides of the outer walls of the ejector rods (4), fixing rods (11) are embedded in the positioning pins (6), clamping blocks (12) are installed at the top ends of the fixing rods (11), the outer portions of the fixing rods (11) are fixedly connected with the inner walls of the positioning pins (6) through reset springs (13), fixing clamping plates (7) are installed at the bottom ends of the ejector rods (4), fixing grooves (17) are formed in the bottom ends of the fixing clamping plates (7), L-shaped pressing plates (18) are installed in the fixing grooves (17), and the L-shaped pressing plates, and a compression spring (20) is installed at the bottom end inside the supporting column (19) through a spring fixing seat.

2. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: bottom plate (8) are installed to anchor clamps (1) inside bottom, rubber tie plate is installed through the nut in bottom plate (8) top.

3. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: the fixed splint (7) is fixedly connected with the ejector rod (4) through a fixed cylinder (10), and a thread groove is formed in the fixed cylinder (10).

4. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: the automatic lifting device is characterized in that a sliding groove (14) is formed in one side of the outer wall of the ejector rod (4), rolling wheels (15) are evenly installed inside the sliding groove (14), and silica gel gaskets (16) are sleeved outside the rolling wheels (15).

5. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: the inner diameter of the positioning groove (9) is equal to the outer diameter of the fixture block (12), and the fixture block (12) is semi-ellipsoidal.

6. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: the bottom end of the L-shaped pressing plate (18) is coated with a rubber gasket, and anti-skid lines are uniformly arranged on the surface of the rubber gasket.

7. The edge-clamping structure of an anti-tilting SMT chip mounter according to claim 1, wherein: handles (5) are installed on two sides of the top end of the clamping screw rod (3), and a sponge cushion cover is sleeved outside each handle (5).