CN221695083U - Surface-mounted chip pin coplanarity correction device - Google Patents

Abstract

The utility model belongs to the field of electronic assembly, and particularly relates to a coplanarity correction device for pins of a surface-mounted chip. Comprising the following steps: the device comprises a base (2), a width adjusting rod (3), a universal correction die (4), a pressing block (5), a support (6) and a pressing rod mechanism (7), wherein the universal correction die (4) comprises a die seat, a left die and a right die, the width adjusting rod (3) penetrates through threaded holes in the lower parts of the left die and the right die, and the width between the left die and the right die can be adjusted by rotating the width adjusting rod (3); the universal correction die (4) and the bracket (6) are arranged on the base (2), and the bracket (6) is a longitudinal support structure positioned at one side of the universal correction die (4); the pressure bar mechanism (7) comprises a pressure bar and a fixed seat, wherein the pressure bar mechanism (7) is fixed on the bracket (6) through the fixed seat, one end of the pressure bar is a handle, and the other end of the pressure bar is connected with the pressing block (5).

Description

Surface-mounted chip pin coplanarity correction device

Technical Field

The utility model belongs to the electronic assembly technology, and particularly relates to a coplanarity correction device for pins of a surface-mounted chip.

Background

Along with the rapid development of electronic assembly technology, the application of surface mount chips is more and more widespread, wherein the pins of SOP devices are fine, the pins are often deformed in the processes of incoming material transportation and production field turnover, and the coplanarity of the pins is poor. The standard requires the coplanarity of the pins of the surface-mounted chip to be less than 0.1mm. Poor coplanarity of pins of the surface-mounted chip can cause welding defects such as insufficient tin on the pins after assembly and welding, and the quality and reliability of electronic products are affected.

Disclosure of utility model

The utility model aims to: the coplanarity correction device for the pins of the surface-mounted chip solves the problem of welding defects caused by poor coplanarity of the surface-mounted chip.

The technical scheme is as follows:

A device for correcting coplanarity of pins of a surface mount chip, comprising: the device comprises a base 2, a width adjusting rod 3, a universal correction die 4, a pressing block 5, a support 6 and a pressing rod mechanism 7, wherein the universal correction die 4 comprises a die seat, a left die and a right die which are symmetrically arranged on the die seat, threaded holes are formed in the lower parts of the left die and the right die, threads are formed in the width adjusting rod 3, the width adjusting rod 3 penetrates through the threaded holes in the lower parts of the left die and the right die, and the width between the left die and the right die can be adjusted by rotating the width adjusting rod 3; the universal correction die 4 and the bracket 6 are both arranged on the base 2, and the bracket 6 is a longitudinal supporting structure positioned at one side of the universal correction die 4; the pressing rod mechanism 7 comprises a pressing rod and a fixing seat, wherein the pressing rod mechanism 7 is fixed on the support 6 through the fixing seat, one end of the pressing rod is a handle, the other end of the pressing rod is connected with the pressing block 5, the handle is pressed, and the pressing block 5 is pressed down to the surface-mounted chip pins on the left die and the right die, so that coplanarity correction is completed.

Further, a guide rail 1 is arranged below the universal correction die 4, a chute is fixed on the base 2, and the universal correction die 4 slides in the chute through the guide rail 1 and is far away from the lower part of the pressing block 5 or near the lower part of the pressing block 5.

Further, the cross section of the chute and the cross section below the guide rail are dovetail-shaped.

Further, the bracket 6 comprises two mutually perpendicular longitudinal plates, wherein a first longitudinal plate is used for fixing the compression bar mechanism 7 and a second longitudinal plate is used for supporting the first longitudinal plate.

Further, the bracket 6 is fixed to the base 2 by screws.

Further, the direction in which the universal correction die 4 slides in the slide groove through the guide rail 1 is perpendicular to the first longitudinal plate of the bracket 6.

The beneficial effects are that:

The utility model can realize coplanarity correction of the pins of the surface-mounted chip by using the pressing blocks and the universal correction die; the width of the universal correction die is adjustable, so that the universal correction die is suitable for most of the digital label chips and has strong universality; in addition, the single-shaft guide rail is arranged above the base, so that the front-back movement of the die can be corrected, the surface mount chip can be conveniently taken and placed, the operation is simple and convenient, and the processing difficulty is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings required to be used in the embodiments of the present utility model, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a device for calibrating coplanarity of pins of a surface mount chip according to the present utility model;

Wherein: 1 is a guide rail, 2 is a base, 3 is a width adjusting rod, 4 is a general correction die, 5 is a pressing block, 6 is a bracket, and 7 is a pressing rod mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making any inventive effort are intended to fall within the scope of the present utility model.

Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. The present utility model is in no way limited to any particular arrangement and method set forth below, but rather covers any adaptations, alternatives, and modifications of structure, method, and device without departing from the spirit of the utility model. In the drawings and the following description, well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other, and the embodiments may be referred to and cited with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The utility model provides a coplanarity correcting device for pins of a surface-mounted chip, which can be used for correcting the pins of a device with coplanarity problem before the assembly and welding of the surface-mounted chip, and ensuring that the coplanarity of the pins is qualified, thereby improving the welding quality. The die with adjustable width is arranged, can be suitable for most common surface mount chips, and has the advantages of strong applicability and simplicity and convenience in operation.

Referring to fig. 1, a device for correcting coplanarity of pins of a surface-mounted chip comprises a guide rail 1, a base 2, a width adjusting rod 3, a universal correction die 4, a pressing block 5, a bracket 6 and a pressing rod mechanism 7.

The universal correction die 4 can realize single-shaft relative movement with the base 2 through the dovetail guide rail 1, the width of a left die and a right die in the universal correction die 4 can be realized by rotating the width adjusting rod 3 to drive a screw rod to move, and the vertical movement of the pressing block 5 can be realized by the relative movement of a pressing rod in the hand-held pressing rod mechanism 7 and the bracket 6. The width of the left die and the width of the right die on the universal correction die 4 are adjustable, and the universal correction die is used for bearing surface-mounted chips with different body sizes, and the pins of the surface-mounted chips can be ensured to be flat through pressing of the pressing blocks and the universal correction die, so that good coplanarity of the pins is obtained.

During operation, the universal correction die 4 is moved out of the lower part of the pressing block 5 through the guide rail 1, then the surface-mounted chip is inverted above the universal correction die 4, the width of the left die and the width of the right die of the universal correction die 4 are adjusted through the width adjusting rod 3, the widths of the left die and the right die are guaranteed to be matched with the sizes of the chip body, and the flat parts of the pins are enabled to contact the plane of the universal correction die 4. After the surface-mounted chip is placed correctly, the general correction die 4 carrying the chip is moved to the lower part of the pressing block 5 through the guide rail 1, the pressing rod of the manual control pressing rod structure 7 enables the pressing block 5 to move downwards to be in contact with the general correction die 4 and press, the pressing rod 7 is controlled to enable the pressing block 5 to be lifted, the corrected chip is removed, and the correction process is completed.

Through a large number of experiments, the result proves that the coplanarity correcting device for the pins of the surface-mounted chip is simple in structure, convenient to operate and high in universality. At present, the device is applied to most of the surface-mounted chip pin correction processes before the surface-mounted production line goes on line.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about various equivalent modifications or substitutions within the technical scope of the present utility model, and these modifications or substitutions should be covered in the scope of the present utility model.

Claims (6)

1. The utility model provides a table pastes chip pin coplanarity correcting unit which characterized in that includes: a base (2), a width adjusting rod (3), a general correction die (4), a pressing block (5), a bracket (6) and a pressing rod mechanism (7), wherein,

The universal correction die (4) comprises a die seat, a left die and a right die which are symmetrically arranged on the die seat, threaded holes are formed in the lower parts of the left die and the right die, threads are formed in the width adjusting rod (3), the width adjusting rod (3) penetrates through the threaded holes in the lower parts of the left die and the right die, and the width between the left die and the right die can be adjusted by rotating the width adjusting rod (3);

the universal correction die (4) and the bracket (6) are arranged on the base (2), and the bracket (6) is a longitudinal support structure positioned at one side of the universal correction die (4);

The pressing rod mechanism (7) comprises a pressing rod and a fixing seat, wherein the pressing rod mechanism (7) is fixed on the support (6) through the fixing seat, one end of the pressing rod is a handle, the other end of the pressing rod is connected with the pressing block (5), the handle is pressed, and the pressing block (5) is pressed down to the surface-mounted chip pins on the left die and the right die, so that coplanarity correction is completed.

2. The surface mount chip pin coplanarity correcting device according to claim 1, wherein a guide rail (1) is arranged below the universal correcting die (4), a sliding groove is fixed on the base (2), and the universal correcting die (4) slides in the sliding groove through the guide rail (1) and is far away from the lower part of the pressing block (5) or near the lower part of the pressing block (5).

3. The surface mount chip pin coplanarity calibration device of claim 2, wherein the chute cross section and the rail lower cross section are dovetail shaped.

4. The device for correcting coplanarity of pins of a surface-mounted chip according to claim 2, wherein the bracket (6) comprises two mutually perpendicular longitudinal plates, wherein a first longitudinal plate is used for fixing the compression bar mechanism (7), and a second longitudinal plate is used for supporting the first longitudinal plate.

5. The surface mount chip pin coplanarity correcting device according to claim 2, wherein the bracket (6) is fixed on the base (2) by a screw.

6. The correction device for coplanarity of pins of a surface-mounted chip according to claim 4, wherein the direction in which the universal correction die (4) slides in the chute through the guide rail (1) is perpendicular to the first longitudinal plate of the bracket (6).