阅读说明：本技术 一种防元件偏移的回流焊加工用限位装置 (Prevent stop device for reflow soldering processing of component skew ) 是由 李晓东 于 2021-06-17 设计创作，主要内容包括：本发明公开了一种防元件偏移的回流焊加工用限位装置,包括：框架主体,框架主体为矩形框架结构,待焊接元件放置在框架主体上矩形的容纳仓内,框架主体的一相对侧边上设置有对称布置的连接座,连接座通过紧固件固定安装在待焊接PCB上,待焊接PCB上设置有若干个焊盘孔,连接座上设置有第一通孔,第一通孔垂直于待焊接PCB,紧固件依次穿过第一通孔和焊盘孔后将框架主体固定安装在待焊接PCB上。本发明相较于现有技术,在元件进行回流焊的时候,对其进行限位,避免焊接过程中出现位置偏移,保证焊接质量。(The invention discloses a limiting device for reflow soldering processing, which can prevent element deviation, comprising: the frame main part, the frame main part is rectangle frame construction, treat that welding element places in the storehouse that holds of rectangle in the frame main part, be provided with symmetrical arrangement's connecting seat on the relative side of frame main part, the connecting seat passes through fastener fixed mounting and treats welding PCB on, treat to be provided with a plurality of pad hole on welding PCB, be provided with first through-hole on the connecting seat, the PCB is treated welding to first through-hole perpendicular to, after the fastener passes first through-hole and pad hole in proper order with frame main part fixed mounting treat welding PCB on. Compared with the prior art, the invention limits the component during reflow soldering, avoids position deviation in the soldering process and ensures the soldering quality.)

1. A limiting device for reflow soldering processing for preventing component deviation is characterized by comprising a frame main body (1), the frame main body (1) is a rectangular frame structure, elements to be welded are placed in a rectangular containing bin (11) on the frame main body (1), one opposite side edge of the frame body (1) is provided with symmetrically arranged connecting seats (2), the connecting seat (2) is fixedly arranged on the PCB (3) to be welded through a fastener, the PCB (3) to be welded is provided with a plurality of pad holes (31), the connecting seat (2) is provided with a first through hole (4), the first through hole (4) is perpendicular to the PCB (3) to be welded, and the frame body (1) is fixedly installed on the PCB (3) to be welded after the fastener sequentially penetrates through the first through hole (4) and the pad hole (31).

2. The limiting device for preventing component deviation in reflow soldering process according to claim 1, wherein the connecting seat (2) comprises a first rod body (21) and a second rod body (22) which are sequentially arranged from top to bottom, the first rod body (21) is fixedly installed on the frame body (1), the second rod body (22) is hinged on the first rod body (21) through a connector (211) arranged at the bottom of the first rod body (21), the first through hole (4) penetrates through the connector (211), the first rod body (21) is fixed on the second rod body (22) through a screw (212), and a second through hole (221) is arranged on the second rod body (22).

3. A component shift prevention position limiter for reflow soldering process according to claim 2, wherein the diameter of the second through hole (221) is equal to the diameter of the first through hole (4).

4. The limiting device for reflow soldering process for preventing component deviation according to claim 1, wherein a movable limiting plate (5) is disposed on the sidewall of the accommodating bin (11), the movable limiting plate (5) is fixedly mounted on the frame body (1) through an adjusting bolt (6), the adjusting bolt (6) is screwed on the frame body (1), and the end of the rod body of the adjusting bolt (6) is fixedly mounted on the movable limiting plate (5) through a bearing.

5. A component shift prevention limiting device for reflow soldering process according to claim 4, wherein the movable limiting plate (5) is embedded in the side wall of the containing bin (11).

6. The limiting device for reflow soldering process for preventing component deviation according to claim 4 or 5, wherein the back of the movable limiting plate (5) is provided with a plurality of guide rods (51) arranged in parallel, and the guide rods (51) are arranged through the side wall of the accommodating bin (11).

7. The limiting device for reflow soldering process for preventing component deviation according to claim 1, wherein avoidance positions (111) are provided at four inner corners of the accommodating chamber (11).

8. The limiting device for reflow soldering process for preventing component deviation according to claim 7, wherein the avoiding portion (111) has a circular arc structure.

Technical Field

The invention belongs to the field of PCB processing, and particularly relates to a limiting device for reflow soldering processing, which can prevent component deviation.

Background

Pcb (printed circuit board), i.e. printed wiring board, printed circuit board for short, is one of the important parts in the electronics industry, and is a carrier for electrical connection of electronic components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved.

Reflow soldering is a common soldering method when a component is mounted on a PCB, a heating circuit is arranged in reflow soldering equipment, air or nitrogen is heated to a high enough temperature and then blown to a circuit board on which the component is mounted, and solder on two sides of the component is bonded with a mainboard after being melted.

When the component is attached to the PCB by reflow soldering, the mounting position is lack of limitation, which causes the position to deviate after the reflow soldering is completed, the soldering quality is poor, and the mounting of other components is affected.

Disclosure of Invention

The invention aims to: the limiting device for reflow soldering processing is used for preventing component deviation, when a component is subjected to reflow soldering, the component is limited, position deviation in the soldering process is avoided, and soldering quality is guaranteed.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a prevent stop device for reflow soldering processing of component skew, including the frame main part, the frame main part is rectangle frame construction, treat that welding element places in the storehouse that holds of rectangle in the frame main part, be provided with symmetrical arrangement's connecting seat on the opposite side of frame main part, the connecting seat passes through fastener fixed mounting and treats welding PCB on, treat to be provided with a plurality of pad hole on welding PCB, be provided with first through-hole on the connecting seat, welding PCB is treated to first through-hole perpendicular to, the fastener passes first through-hole and pad hole back in proper order with frame main part fixed mounting treat welding PCB on.

As a further description of the above technical solution:

the connecting seat comprises a first rod body and a second rod body which are sequentially arranged from top to bottom, the first rod body is fixedly installed on the frame body, the second rod body is hinged to the first rod body through a connector arranged at the bottom of the first rod body, a first through hole penetrates through the connector, the first rod body is fixed to the second rod body through a screw, and a second through hole is formed in the second rod body.

As a further description of the above technical solution:

the diameter of the second through hole is equal to the diameter of the first through hole.

As a further description of the above technical solution:

the lateral wall of the containing bin is provided with a movable limiting plate, the movable limiting plate is fixedly installed on the frame main body through an adjusting bolt, the adjusting bolt is in threaded connection with the frame main body, and the end part of the rod body of the adjusting bolt is fixedly installed on the movable limiting plate through a bearing.

As a further description of the above technical solution:

the movable limiting plate is embedded on the side wall of the containing bin.

As a further description of the above technical solution:

the back of the movable limiting plate is provided with a plurality of guide rods which are arranged in parallel, and the guide rods penetrate through the side wall of the accommodating bin.

As a further description of the above technical solution:

avoidance positions are arranged at four inner corners of the containing bin.

As a further description of the above technical solution:

the avoiding position is of a circular arc structure.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the frame main body is detachably arranged on the PCB to be welded through the connecting seat, and the jig limits the position of the element to be welded through the frame main body, so that the element is prevented from position deviation in the welding process, and the welding quality is ensured.

2. In the invention, in order to better adjust the through hole on the connecting seat to align with the pad hole on the PCB to be welded, the connecting seat consists of a first rod body and a second rod body. When the first through hole on the connecting seat is aligned with the pad hole, the fastener for fixing the connecting seat is arranged in the first through hole; when the first through hole on the connecting base can not be aligned with the pad hole, the second rod body of the connecting base is rotated, the second rod body is attached to a PCB to be welded and rotates by taking the connecting head as a shaft, the second rod body stops rotating when the second through hole is aligned with the pad hole, and the fastener for fixing the connecting base is arranged in the second through hole.

3. In the invention, in order to further improve the positioning effect of the element, the side wall of the accommodating bin is provided with the movable limiting plate, and the movable limiting plate can horizontally move through the rotation of the adjusting bolt so as to extrude the side surface of the element. The specific working principle of the movable limiting plate is as follows: the end part of the rod body of the adjusting bolt is fixedly arranged on the movable limiting plate through a bearing, the outer ring of the bearing is fixedly arranged on the movable limiting plate, and the inner ring of the bearing is sleeved on the rod body of the adjusting bolt, so that the movable limiting plate is pushed in the horizontal direction when the adjusting bolt is rotated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view showing the mounting of a reflow soldering apparatus for preventing component displacement.

Fig. 2 is a schematic view showing a change in the mounting state of a reflow soldering apparatus for preventing component displacement.

Fig. 3 is a schematic structural view of a reflow soldering process stopper device for preventing component deviation.

Fig. 4 is a schematic structural diagram of a connection seat in a reflow soldering process limiting device for preventing component deviation.

Fig. 5 is a schematic view of a top view angle structure of a connection seat in a limiting device for reflow soldering process for preventing component deviation.

Illustration of the drawings:

1. a frame body; 11. an accommodating bin; 111. avoidance positions; 2. a connecting seat; 21. a first rod body; 211. a connector; 212. a screw; 22. a second rod body; 221. a second through hole; 3. a PCB to be welded; 31. a pad hole; 4. a first through hole; 5. a movable limit plate; 51. a guide bar; 6. and adjusting the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a prevent stop device for reflow soldering processing of component skew, including frame subject 1, frame subject 1 is the rectangular frame structure, treat that welding element places in the storehouse 11 that holds of rectangle on frame subject 1, be provided with symmetrical arrangement's connecting seat 2 on the opposite side of frame subject 1, connecting seat 2 is through fastener fixed mounting treat welding PCB3 on, treat to be provided with a plurality of pad hole 31 on welding PCB3, be provided with first through-hole 4 on connecting seat 2, PCB3 is treated to first through-hole 4 perpendicular to, the fastener passes first through-hole 4 and pad hole 31 back in proper order with frame subject 1 fixed mounting treat welding PCB3 on.

Connecting seat 2 is including the first body of rod 21 and the second body of rod 22 that from top to bottom arranges in proper order, and first body of rod 21 fixed mounting is on frame main part 1, and the second body of rod 22 articulates on first body of rod 21 through the connector 211 that first body of rod 21 bottom set up, and first through-hole 4 runs through connector 211, and first body of rod 21 passes through the fixed second body of rod 22 of screw 212, is provided with second through-hole 221 on the second body of rod 22, better fixed connection seat 2.

The diameter of the second through hole 221 is equal to the diameter of the first through hole 4, so that the fastener is convenient to use.

The lateral wall that holds storehouse 11 is provided with movable limiting plate 5, and movable limiting plate 5 passes through 6 fixed mounting of adjusting bolt on frame main part 1, and 6 threaded connection of adjusting bolt are on frame main part 1, and adjusting bolt 6's body of rod tip passes through bearing fixed mounting on movable limiting plate 5, controls 5 reciprocating motion of movable limiting plate.

The embedded setting of activity limiting plate 5 is on the lateral wall that holds storehouse 11, improves the adjustment range who holds storehouse 11, better positioning element.

The back of the movable limiting plate 5 is provided with a plurality of guide rods 51 which are arranged in parallel, the guide rods 51 penetrate through the side wall of the accommodating bin 11, and the movable limiting plate 5 is controlled to move smoothly.

Avoidance positions 111 are arranged at four inner corners of the accommodating bin 11, the avoidance positions 111 are of circular arc structures, damage to corners of elements is avoided, and the frame main body 1 is convenient to take down.

The working principle is as follows: the frame main part passes through connecting seat detachable and installs on treating welding PCB, and the tool is treated welding element's position through the frame main part and is restricted, avoids the component position offset to appear in welding process, guarantees welding quality. In order to better adjust the through hole on the connecting seat to align with the pad hole on the PCB to be welded, the connecting seat consists of a first rod body and a second rod body. When the first through hole on the connecting seat is aligned with the pad hole, the fastener for fixing the connecting seat is arranged in the first through hole; when the first through hole on the connecting base can not be aligned with the pad hole, the second rod body of the connecting base is rotated, the second rod body is attached to a PCB to be welded and rotates by taking the connecting head as a shaft, the second rod body stops rotating when the second through hole is aligned with the pad hole, and the fastener for fixing the connecting base is arranged in the second through hole. In order to further improve the positioning effect of the element, a movable limiting plate is arranged on the side wall of the accommodating bin, and the movable limiting plate can horizontally move through rotation of the adjusting bolt to extrude the side face of the element. The specific working principle of the movable limiting plate is as follows: the end part of the rod body of the adjusting bolt is fixedly arranged on the movable limiting plate through a bearing, the outer ring of the bearing is fixedly arranged on the movable limiting plate, and the inner ring of the bearing is sleeved on the rod body of the adjusting bolt, so that the movable limiting plate is pushed in the horizontal direction when the adjusting bolt is rotated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.