CN219626917U

CN219626917U - Special-shaped PCB ejector pin structure

Info

Publication number: CN219626917U
Application number: CN202320618435.7U
Authority: CN
Inventors: 姚喜龙
Original assignee: Tianjin Haner Electronics Co ltd
Current assignee: Tianjin Haner Electronics Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-09-01
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to the technical field of PCB ejector pins, and discloses a special-shaped PCB ejector pin structure which comprises a base, wherein a main mechanism is fixedly arranged at the top end of the base. The upper side inclined surface of the trapezoid block can be extruded by the bottom of the top cover, so that the trapezoid block is extruded into the movable groove, then the trapezoid block is pushed by the reset spring until the clamping groove corresponds to the movable groove, the trapezoid block is clamped with the clamping groove, the main mechanism and the sealing cover component can be quickly clamped, the main mechanism and the sealing cover component can be detached, the main mechanism and the sealing cover component can be timely separated when the ejector pin is in a problem, the ejector pin is convenient to overhaul, the mounting mode can improve the mounting and detaching efficiency, more time is saved, the threaded connection is avoided, and the auxiliary time of a tool can be reduced.

Description

Special-shaped PCB ejector pin structure

Technical Field

The utility model relates to the technical field of PCB ejector pins, in particular to a special-shaped PCB ejector pin structure.

Background

In reflow soldering of surface mount assemblies, solder paste is used for connection between pins or terminals of a surface mount component and pads. In the printing process, a screen printing machine, a screen plate, solder paste and a scraper are all key points related to the printing quality. In the solder paste printing process, the substrate is placed on a track platform of a screen printer, the substrate is clamped or vacuum adsorbed to be positioned, the positioning and deviation correction between the substrate and a screen plate are carried out visually, and finally, the printing is started by a scraper.

In the aspect of supporting, because the PCB is provided with various components and parts, the concave-convex of each position of the bottom surface of the PCB is different, the current supporting device can not firmly support the PCB and can not ensure levelness, so that the printing quality is not improved, the PCB is usually required to be supported by a top,

in carrying out the above operations, the technician finds at least the following problems: the PCB of 1.5MM thickness is held up to general thimble, and traditional thimble structure probably can need change whole thimble structure when the damage appears in the thimble simultaneously, and this is certainly comparatively extravagant raw and other materials and resource to do this, and detachable thimble structure adopts modes such as screw thread fixing in the aspect of dismantling generally, under the condition of screw thread locking, relies on manual dismantlement comparatively inconvenient to thimble mechanism, has reduced the efficiency of dismantling.

Disclosure of Invention

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dysmorphism PCB thimble structure, includes the base, the top fixed mounting of base has main mechanism, the inside activity grafting of main mechanism has the thimble, the top grafting of main mechanism is slided and is had the closing cap subassembly.

Preferably, the main mechanism comprises an inner box, two sides of the inner box are fixedly provided with sliding seats, two sides of the sliding seats are provided with movable grooves, the inside of each movable groove is fixedly provided with a fixed plate, one side of each fixed plate is fixedly provided with a fixed column, the outside of each fixed column is slidably connected with a trapezoid block, the inside of each trapezoid block is provided with a limiting groove, and one side of each trapezoid block is fixedly connected with a reset spring.

Preferably, the cover assembly comprises a top cover, clamping grooves are formed in two sides of the bottom of the top cover, and the clamping grooves are consistent with the vertical section of the movable groove in width.

Preferably, the surface of the cover assembly is provided with a plurality of jacks, and the top of the ejector pin penetrates through the inside of the main mechanism and extends to the upper side of the cover assembly, and penetrates through the jacks formed in the surface of the cover assembly.

Preferably, two ends of the reset spring are fixedly connected with the trapezoid block and the fixed plate respectively, and the length of the vertical section of the trapezoid block is smaller than the width of the vertical section of the movable groove.

Preferably, the number of the movable grooves and the clamping grooves is four, and two adjacent movable grooves and clamping grooves are two by two and are respectively positioned at two ends of the inner box and two ends of the top cover.

The beneficial effects of the utility model are as follows: the upper side inclined surface of the trapezoid block can be extruded by the bottom of the top cover, so that the trapezoid block is extruded into the movable groove, then the trapezoid block is pushed by the reset spring until the clamping groove corresponds to the movable groove, the trapezoid block is clamped with the clamping groove, the main mechanism and the sealing cover component can be quickly clamped, the main mechanism and the sealing cover component can be detached, the main mechanism and the sealing cover component can be timely separated when the ejector pin is in a problem, the ejector pin is convenient to overhaul, the mounting mode can improve the mounting and detaching efficiency, more time is saved, the threaded connection is avoided, and the auxiliary time of a tool can be reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a side cross-sectional view of the structure of the present utility model;

FIG. 3 is a side elevation, cut away view of the structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure a in fig. 2 according to the present utility model.

In the figure: 1. a base; 2. a main mechanism; 3. a thimble; 4. a capping assembly; 21. an inner box; 22. a slide; 23. a movable groove; 24. a fixing plate; 25. fixing the column; 26. a trapezoid block; 27. a limit groove; 28. a return spring; 41. a top cover; 42. a clamping groove.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a special-shaped PCB ejector pin structure includes a base 1, a main mechanism 2 is fixedly mounted at the top end of the base 1, an ejector pin 3 is movably inserted in the main mechanism 2, a cover assembly 4 is inserted and slid on the top of the main mechanism 2, a plurality of insertion holes are formed in the surface of the cover assembly 4, and the top of the ejector pin 3 penetrates through the inside of the main mechanism 2 and extends to the upper side of the cover assembly 4 and penetrates through the insertion holes formed in the surface of the cover assembly 4.

According to the illustration shown in fig. 3-4, the main mechanism 2 comprises an inner box 21, two sides of the inner box 21 are fixedly provided with a sliding seat 22, two sides of the sliding seat 22 are provided with movable grooves 23, the inside of the movable grooves 23 is fixedly provided with a fixed plate 24, one side of the fixed plate 24 is fixedly provided with a fixed column 25, the outside of the fixed column 25 is connected with a trapezoid block 26 in a sliding manner, the inside of the trapezoid block 26 is provided with a limit groove 27, one side of the trapezoid block 26 is fixedly connected with a reset spring 28, two ends of the reset spring 28 are respectively fixedly connected with the trapezoid block 26 and the fixed plate 24, the vertical section length of the trapezoid block 26 is smaller than the vertical section width of the movable groove 23, the sealing cover assembly 4 comprises a top cover 41, two sides of the bottom of the top cover 41 are provided with clamping grooves 42, the vertical section width of the clamping grooves 42 is identical with that of the movable grooves 23, the number of the movable grooves 23 and the clamping grooves 42 is four, and two adjacent two pairs of the clamping grooves 42 are respectively located at two ends of the inner box 21 and two ends of the top cover 41.

Working principle: when the ejector pin is used, please refer to fig. 1-4, through pressing two trapezoidal blocks 26, make trapezoidal block 26 slide in the outside of fixed column 25 through spacing groove 27, simultaneously at this in-process extrusion reset spring 28, until trapezoidal block 26 is located the inside of movable groove 23 completely, pulling top cap 41 upwards moves this moment, make draw-in groove 42 and trapezoidal block 26 separation, can realize tearing down to closing cap subassembly 4, and at this moment to the inside thimble 3 of inner box 21 overhaul and change can, it is fast to dismantle efficiency, and need press trapezoidal block 26 simultaneously, can realize dismantling, the circumstances that the mistake touches and leads to closing cap subassembly 4 and main mechanism 2 autosegregation takes place, wherein when needs the installation, directly aim at the top of inner box 21 with the top of top cap 41, then the bottom of top cap 41 can extrude the upper side inclined surface of trapezoidal block 26, thereby extrude the inside of movable groove 23 with trapezoidal block 26, afterwards until draw-in groove 42 and movable groove 23 correspond the time, trapezoidal block 26 can receive reset spring 28's promotion, make trapezoidal block 26 and draw-in groove 42 joint, can realize fast joint with draw-in groove 42, can realize that main mechanism and main mechanism 2 take place at the same time, can realize the time, can reduce the time to realize the time to the realization of the time of the realization of this kind of the mechanism, and can be more convenient for the realization, and the time-to realize the time-saving to the main mechanism 2, and can realize the time-saving the time, and can be more than 3, and convenient for the improvement, and 3.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a dysmorphism PCB thimble structure, includes base (1), its characterized in that: the top end of the base (1) is fixedly provided with a main mechanism (2), a thimble (3) is movably inserted in the main mechanism (2), and a sealing cover assembly (4) is inserted and slid at the top of the main mechanism (2);

main mechanism (2) are including inner box (21), both sides fixed mounting of inner box (21) have slide (22), movable groove (23) have been seted up to the both sides of slide (22), the inside fixed mounting of movable groove (23) has fixed plate (24), one side fixed mounting of fixed plate (24) has fixed column (25), the outside sliding connection of fixed column (25) has trapezoidal piece (26), spacing groove (27) have been seted up to the inside of trapezoidal piece (26), one side fixedly connected with reset spring (28) of trapezoidal piece (26).

2. The profiled PCB ejector pin structure of claim 1, wherein: the sealing cover assembly (4) comprises a top cover (41), clamping grooves (42) are formed in two sides of the bottom of the top cover (41), and the widths of the vertical sections of the clamping grooves (42) and the vertical sections of the movable grooves (23) are consistent.

3. The profiled PCB ejector pin structure of claim 1, wherein: the surface of closing cap subassembly (4) has seted up a plurality of jacks, the top of thimble (3) runs through the inside of main mechanism (2) and extends to the top of closing cap subassembly (4), and runs through the jack of closing cap subassembly (4) surface seting up.

4. The profiled PCB ejector pin structure of claim 1, wherein: the two ends of the return spring (28) are fixedly connected with the trapezoid block (26) and the fixed plate (24) respectively, and the vertical section length of the trapezoid block (26) is smaller than the vertical section width of the movable groove (23).

5. The profiled PCB ejector pin structure of claim 1, wherein: the number of the movable grooves (23) and the clamping grooves (42) is four, and the adjacent movable grooves (23) and the adjacent clamping grooves (42) are two by two and are respectively positioned at two ends of the inner box (21) and two ends of the top cover (41).