CN219087414U

CN219087414U - PCB fixing mechanism

Info

Publication number: CN219087414U
Application number: CN202223366600.9U
Authority: CN
Inventors: 韩鹏; 李峰; 狄庆超; 李侠; 夏升阳
Original assignee: Dingnan Jinpeng Electronic Co ltd
Current assignee: Dingnan Jinpeng Electronic Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-26
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a PCB fixing mechanism, which relates to the technical field of PCB processing, and solves the problems that in the prior art, only a support of a jig is positioned in the process of printing solder paste, the PCB is unstable and easy to generate ectopic, thereby affecting the printing effect of the PCB and reducing the yield, and the utility model provides the following scheme: the movable split limiting block is symmetrically arranged at two ends of the bottom of the main body table, the telescopic end of the second cylinder penetrates through the side wall of the main body table and is connected with a connecting plate, and the top of the connecting plate is connected with an upper limiting plate. The utility model realizes double fixing of the PCB and is convenient for subsequent processing operation of the PCB.

Description

PCB fixing mechanism

Technical Field

The utility model relates to the technical field of PCB processing, in particular to a PCB fixing mechanism.

Background

When the PCB is printed with solder paste, one surface of the PCB with the electric element faces downwards, and the lower surface of the PCB is provided with a positioning block jig with a slotted hole in the middle part, so that all the electric elements are avoided by being supported, but only the support of the jig is positioned in the process of printing the solder paste, the PCB is unstable and easy to produce ectopic, thereby affecting the printing effect of the PCB and reducing the yield.

Disclosure of Invention

The utility model aims to solve the technical problems that the PCB is unstable and easy to be ectopic in the process of printing solder paste only by the support of the jig, thereby influencing the printing effect of the PCB and reducing the yield;

the bottom of the main body table is rotationally connected with a first air cylinder, the telescopic end of the first air cylinder is connected with the center of the bottom of the positioning table, four openings are symmetrically formed in the table top of the positioning table, and movable bifurcation limiting blocks extend out of the openings;

the telescopic ends of the second cylinders penetrate through the side wall of the main body table and are connected with the connecting plate, the top of the connecting plate is connected with the upper limiting plate, the upper limiting plate is slidably connected to the top of the main body table, and a notch corresponding to the position of the bifurcation limiting block is formed in the upper limiting plate.

Preferably, the screw thread department spiro union slider of locating bench intracavity installation screw rod, slider bottom sliding connection is in the spout, the spout is installed in locating bench intracavity bottom, the branching stopper is connected at the slider top, the branching stopper is provided with two branch portions, the branch portion stretches out the locating bench mesa through the opening.

Preferably, the second motor is installed at the bottom of the positioning table, a belt pulley is arranged at the power output end of the second motor and the right end of the screw rod, and the belt pulleys are connected through belt transmission.

Preferably, the screw is a double-head screw with two threads with opposite screwing directions, and the two sliding blocks are respectively screwed on the threads at two sides.

Preferably, the first motor is installed at the bottom of the main body table, the power output end of the first motor is connected with the first gear, the outer side of the circumference of the fixed end of the first cylinder is connected with the second gear, and the first gear is rotationally connected with and meshed with the second gear.

Compared with the prior art, the utility model has the beneficial effects that: the utility model drives the screw to rotate, thereby driving the sliding blocks at two sides to move oppositely and driving the bifurcation limiting block to move oppositely, and further limiting and fixing the two ends of the PCB.

Starting the first cylinder to drive the positioning table to move upwards, so that two ends of the PCB board contact the bottom surface of the upper limiting board, and further the upper limiting board limits the PCB board in the vertical direction, and double fixing of the PCB board is realized.

Wherein, drive first gear through first motor and rotate, first gear engagement second gear drives first cylinder and rotates 180 degrees to drive the locating bench and rotate 180 degrees, make the direction of PCB board change, be convenient for follow-up processing demand.

Drawings

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

FIG. 2 is a top view showing the positional relationship between the positioning table and the upper limiting plate in the present utility model.

FIG. 3 is a side view of a bifurcated stopper structure of the present utility model.

Reference numerals in the drawings: 1. a main body table; 2. a first cylinder; 3. a positioning table; 31. an opening; 32. a chute; 4. a first motor; 5. a first gear; 6. a second gear; 7. a screw; 8. a slide block; 81. a bifurcation limiting block; 9. a second motor; 10. a belt pulley; 11. a belt; 12. a second cylinder; 13. a splice plate; 14. an upper limit plate; 141. and (5) a notch.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 3, a PCB board fixing mechanism includes a main body table 1;

the bottom of the main body table 1 is rotationally connected with a first air cylinder 2, the telescopic end of the first air cylinder 2 is connected with the center of the bottom of the positioning table 3, four openings 31 are symmetrically formed in the table top at the top of the positioning table 3, and movable bifurcation limiting blocks 81 extend out of the openings 31;

the second air cylinders 12 are symmetrically arranged at two ends of the bottom of the main body table 1, the telescopic ends of the second air cylinders 12 penetrate through the side wall of the main body table 1 and are connected with the connecting plate 13, the top of the connecting plate 13 is connected with the upper limiting plate 14, the upper limiting plate 14 is slidably connected to the top of the main body table 1, and the upper limiting plate 14 is provided with a notch 141 corresponding to the position of the bifurcation limiting block 81.

In order to better fix the PCB, the utility model further comprises a sliding block 8 which is in threaded connection with the thread of the installation screw 7 in the cavity of the positioning table 3, the bottom of the sliding block 8 is in sliding connection with a sliding groove 32, the sliding groove 32 is installed at the bottom of the cavity of the positioning table 3, the top of the sliding block 8 is connected with a bifurcation limiting block 81, the bifurcation limiting block 81 is provided with two branch parts, and the branch parts extend out of the table top of the positioning table 3 through an opening 31. The second motor 9 is installed at the bottom of the positioning table 3, a belt pulley 10 is arranged at the power output end of the second motor 9 and the right end of the screw rod 7, and the belt pulleys 10 are in transmission connection through a belt 11. The screw rod 7 is a double-head screw rod with two threads with opposite screwing directions, and the two sliding blocks 8 are respectively screwed on the threads at the two sides. The first motor 4 is installed to main part platform 1 bottom, the power take off end of first motor 4 connects first gear 5, the second gear 6 is connected to the stiff end circumference outside of first cylinder 2, first gear 5 rotates to be connected and the meshing second gear 6.

Working principle: the utility model is to place the PCB board on the surface of the positioning table 3. The second motor 9 is started, the belt pulley 10 is matched with the belt 11, the screw rod 7 is driven to rotate, the sliding blocks 8 on two sides are driven to move in opposite directions, the bifurcation limiting block 81 is driven to move in opposite directions, and therefore limiting and fixing are carried out on two ends of the PCB. According to the width of the PCB, the second air cylinder 12 is started, and the connecting plate 13 is matched to drive the upper limit plates 14 on the two sides to move in opposite directions, so that the upper limit plates 14 have the coincident positions with the two ends of the PCB in the vertical direction. And then the first air cylinder 2 is started to drive the positioning table 3 to move upwards, so that the two ends of the PCB are contacted with the bottom surface of the upper limiting plate 14, the upper limiting plate 14 is used for limiting the PCB in the vertical direction, and double fixing of the PCB is realized. Wherein, accessible resets first cylinder 2, drives positioning table 3 decline, and rethread first motor 4 drives first gear 5 and rotates, and first gear 5 meshing second gear 6 drives first cylinder 2 and rotates 180 degrees to drive positioning table 3 and rotate 180 degrees, make the direction of PCB board change, the subsequent processing demand of being convenient for.

The examples described above only represent preferred embodiments of the present utility model, which are described in more detail, but the present utility model is not limited to these examples, and it should be noted that it is obvious to those skilled in the art that the present utility model is not limited to these examples. Any modifications thereof fall within the scope of the present utility model without departing from the spirit of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A PCB board fixed establishment, its characterized in that: comprises a main body table (1);

the bottom of the main body table (1) is rotationally connected with a first air cylinder (2), the telescopic end of the first air cylinder (2) is connected with the center of the bottom of the positioning table (3), four openings (31) are symmetrically formed in the table top at the top of the positioning table (3), and movable bifurcation limiting blocks (81) extend out of the openings (31);

second air cylinders (12) are symmetrically arranged at two ends of the bottom of the main body table (1), the telescopic ends of the second air cylinders (12) penetrate through the side wall of the main body table (1) and are connected with a connecting plate (13), the top of the connecting plate (13) is connected with an upper limiting plate (14), the upper limiting plate (14) is slidably connected to the top of the main body table (1), and a notch (141) corresponding to the position of the bifurcation limiting block (81) is formed in the upper limiting plate (14).

2. The PCB fixing mechanism of claim 1, wherein: the positioning table is characterized in that the thread of the positioning table (3) is provided with a screw (7) in a threaded manner, the bottom of the slide (8) is slidably connected with a sliding groove (32), the sliding groove (32) is arranged at the bottom of the positioning table (3), the top of the slide (8) is connected with a bifurcation limiting block (81), the bifurcation limiting block (81) is provided with two branching parts, and the branching parts extend out of the table top of the positioning table (3) through an opening (31).

3. The PCB fixing mechanism of claim 2, wherein: the positioning table (3) is characterized in that a second motor (9) is arranged at the bottom of the positioning table (3), a belt pulley (10) is arranged at the power output end of the second motor (9) and the right end of the screw rod (7), and the belt pulley (10) is in transmission connection through a belt (11).

4. The PCB fixing mechanism of claim 2, wherein: the screw (7) is a double-head screw with opposite screw threads at two ends, and the two sliding blocks (8) are respectively connected to the screw threads at two sides in a screwed mode.

5. The PCB fixing mechanism of claim 1, wherein: the novel hydraulic control device is characterized in that a first motor (4) is arranged at the bottom of the main body table (1), a power output end of the first motor (4) is connected with a first gear (5), the outer side of the circumference of the fixed end of the first cylinder (2) is connected with a second gear (6), and the first gear (5) is rotationally connected with and meshed with the second gear (6).