阅读说明：本技术 一种pcb板生产用自动喷锡装置 (Automatic tin spraying device is used in PCB board production ) 是由 胡佳杰 于 2021-09-25 设计创作，主要内容包括：本发明涉及一种PCB板生产用自动喷锡装置,所述PCB板生产用自动喷锡装置包括底座、固定安装在所述底座侧端上的安装板以及固定设置在所述底座上的喷锡箱,当需要对PCB板进行上锡操作时,通过调节机构调整夹板之间的距离,使其与需加工的PCB板相匹配,再通过夹持组件将PCB板限制在夹板上,双向驱动机构正向工作,驱动夹板带动PCB板向喷锡箱移动,在其运动至喷锡箱中时,喷锡头对PCB板表面喷锡,且在此过程中,双向驱动机构始终驱动PCB板移动,PCB板将挡板挤压,直至PCB板完全通过挡板,双向驱动机构反向工作,当PCB板与挡板的平面端接触时,挡板将PCB板阻挡,双向驱动机构带动夹板继续移动,使挡板与夹板脱离,并掉落至传送带上。(The invention relates to an automatic tin spraying device for PCB production, which comprises a base, a mounting plate fixedly mounted on the side end of the base and a tin spraying box fixedly arranged on the base, wherein when the PCB needs to be subjected to tin spraying operation, the distance between clamping plates is adjusted through an adjusting mechanism so as to be matched with the PCB to be processed, the PCB is limited on the clamping plates through a clamping assembly, a bidirectional driving mechanism works in the forward direction and drives the clamping plates to drive the PCB to move towards the tin spraying box, when the PCB moves into the tin spraying box, a tin spraying head sprays tin on the surface of the PCB, in the process, the bidirectional driving mechanism drives the PCB to move all the time, the PCB extrudes a baffle until the PCB completely passes through the baffle, the bidirectional driving mechanism works in the reverse direction, when the PCB is contacted with the plane end of the baffle, the baffle blocks the PCB, the bidirectional driving mechanism drives the clamping plates to move continuously, the baffle is disengaged from the clamp plate and drops onto the conveyor belt.)

1. The utility model provides a PCB board production is with automatic tin spraying device, a serial communication port, PCB board production is with automatic tin spraying device includes base (1), fixed mounting is in mounting panel (2) and fixed the setting on base (1) side are in tin spraying box (6) on base (1), PCB board production is with automatic tin spraying device still includes:

the clamping plates (20) are symmetrically arranged above the base (1) through an adjusting mechanism, clamping components are arranged at the side ends of the clamping plates (20) and used for limiting the PCB between the openings of the tin spraying box (6), and the adjusting mechanism is used for adjusting the distance between the two clamping plates (20) so that the clamping plates (20) can be adapted to various PCBs;

the bidirectional driving mechanism is arranged on the base (1) and used for driving the clamping plate (20) to drive the PCB to move transversely in a reciprocating mode so that the PCB moves to the tin spraying chamber (6) to be subjected to tin coating operation, a baffle (15) is arranged at the side end of the tin spraying chamber (6) through the supporting plate (14), and the baffle (15) is movably arranged in a through groove formed in the side end of the supporting plate (14) and used for taking the PCB subjected to tin coating out of the clamping plate (20) and enabling the PCB to fall onto a conveyor belt (16) arranged below the supporting plate (14) so as to achieve automatic blanking of the PCB.

2. The automatic tin spraying device for the production of the PCB as recited in claim 1, wherein the clamping assembly comprises a triangular block (21) fixedly mounted at the bottom of the clamping plate (20), a spring (25) arranged in a through groove formed at the side end of the clamping plate (20) and an arc-shaped block (22) movably arranged in the through groove, and the spring (25) connects the clamping plate (20) and the arc-shaped block (22).

3. The automatic tin spraying device for the production of the PCB as recited in claim 2, wherein the adjusting mechanism comprises a second motor (12) fixedly installed at the side end of the base (1), a threaded component arranged at the output end of the second motor (12), and a guide component connecting the threaded component and the clamping plate (20).

4. The automatic tin spraying device for the PCB production as claimed in claim 3, wherein the screw assembly comprises a bidirectional screw rod (11) fixedly arranged on the output end of the second motor (12) and adjusting sleeves (9) symmetrically sleeved on the periphery of the bidirectional screw rod (11), and the two adjusting sleeves (9) are respectively matched with the screw threads arranged on the bidirectional screw rod (11).

5. The automatic tin spraying device for the production of the PCB as claimed in claim 4, wherein the guiding assembly comprises a movable plate (17) arranged on the base (1), a guiding rod (10) connecting the movable plate (17) and the adjusting sleeve (9), and a movable sleeve (13) sleeved on the periphery of the guiding rod (10), wherein the movable sleeve (13) is connected with the clamping plate (20);

the lower end of the clamping plate (20) is movably provided with a connecting rod (23) through a convex block (24) for connecting the two clamping plates (20) in series so as to enable the two clamping plates to move synchronously.

6. The automatic tin spraying device for PCB production as recited in claim 1, wherein the bi-directional driving mechanism comprises a reciprocating component disposed at a side end of the mounting plate (2) and a sleeve component connecting the reciprocating component and the clamping plate (20).

7. The automatic tin spraying device for the PCB production according to claim 6, wherein the reciprocating component comprises a first motor (3) fixedly installed on the base (1), a screw rod (4) arranged on the output end of the first motor (3) and a threaded sleeve (7) sleeved on the periphery of the screw rod (4).

8. The automatic tin spraying device for the PCB production according to claim 7, wherein the sleeve assembly comprises a square sleeve (8) fixedly installed at the side end of the threaded sleeve (7) and a piston rod (19) movably arranged in the square sleeve (8), and the piston rod (19) is connected with the movable sleeve (13).

Technical Field

The invention relates to the technical field related to production and processing of circuit boards, in particular to an automatic tin spraying device for production of a PCB.

Background

The printed circuit board can be classified into a tin-spraying board, a gold-melting board, a silver-melting board, an OSP board and the like in terms of production and manufacturing processes. The tin-spraying plate is a common type of PCB, is generally a multilayer PCB with high precision, and is used in various fields and products of electronic equipment, communication products, computers, medical equipment, aerospace and the like.

The hot air spraying is a step and a process flow in the production and manufacturing process of the PCB, and particularly, the PCB is immersed in a molten soldering tin pool, so that all exposed copper surfaces are covered by the soldering tin, and then the excessive soldering tin on the PCB is removed through a hot air cutter. Because the surface of the circuit board after tin spraying and the solder paste are the same substances, the welding strength and the reliability are better. However, due to the processing characteristics, the surface flatness of the tin-spraying treatment is not good, and particularly for small electronic components such as BGA and the like, short circuit and other problems may be caused if the flatness is not good due to the small welding area, so a process with good flatness is required to solve the problem of the tin-spraying plate.

The existing PCB tin spraying device generally carries out feeding and blanking on the PCB manually, and the fixing operation on the PCB is complex in the feeding and blanking process, so that the production efficiency is low, the product rejection rate is high, and the ideal effect cannot be achieved.

Disclosure of Invention

The invention aims to provide an automatic tin spraying device for PCB production, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a PCB board production is with automatic tin spraying device, PCB board production is with automatic tin spraying device includes base, fixed mounting and is in mounting panel and fixed the setting on the base side are in tin spraying box on the base, PCB board production is with automatic tin spraying device still includes:

the clamping plates are symmetrically arranged above the base through an adjusting mechanism, clamping components are arranged at the side ends of the clamping plates and used for limiting the PCB between the openings of the tin spraying box, and the adjusting mechanism is used for adjusting the distance between the two clamping plates so as to enable the clamping plates to be adaptive to various PCBs;

two-way actuating mechanism, two-way drive assembly sets up on the base, be used for the drive splint drive the reciprocal sideslip of PCB board to make the PCB board move and carry out the operation of going up tin to the tin spraying room, just be provided with the baffle through the extension board on the tin spraying room side, the baffle activity sets up in the logical groove that the extension board side set up for the PCB board that will go up tin takes out from between the splint, and makes it drop to setting up on the conveyer belt of extension board below, in order to realize the automatic unloading of PCB board.

As a further scheme of the invention: the clamping assembly comprises a triangular block fixedly mounted at the bottom of the clamping plate, a spring arranged in a through groove formed in the side end of the clamping plate and an arc-shaped block movably arranged in the through groove, and the spring is connected with the clamping plate and the arc-shaped block.

As a still further scheme of the invention: the adjusting mechanism comprises a second motor fixedly mounted at the side end of the base, a threaded component arranged at the output end of the second motor and a guide component for connecting the threaded component and the clamping plate;

the screw assembly comprises a bidirectional screw rod fixedly arranged on the output end of the second motor and adjusting sleeves symmetrically arranged on the periphery of the bidirectional screw rod, and the adjusting sleeves are respectively matched with threads arranged on the bidirectional screw rod.

As a still further scheme of the invention: the guide assembly comprises a movable plate arranged on the base, a guide rod connecting the movable plate and the adjusting sleeve, and a movable sleeve sleeved on the periphery of the guide rod, and the movable sleeve is connected with the clamping plate;

the lower end of the clamping plate is movably provided with a connecting rod through a convex block, and the connecting rod is used for connecting the two clamping plates in series so as to enable the two clamping plates to move synchronously.

As a still further scheme of the invention: the bidirectional driving mechanism comprises a reciprocating component arranged at the side end of the mounting plate and a sleeve component for connecting the reciprocating component and the clamping plate;

the reciprocating moving assembly comprises a first motor fixedly mounted on the base, a screw rod arranged on the output end of the first motor and a threaded sleeve sleeved on the periphery of the screw rod;

the sleeve assembly comprises a square sleeve fixedly mounted on the side end of the threaded sleeve and a piston rod movably arranged in the square sleeve, and the piston rod is connected with the movable sleeve.

Compared with the prior art, the invention has the beneficial effects that:

1. when the PCB needs to be tinned, the distance between the clamping plates is adjusted through the adjusting mechanism to be matched with the PCB to be processed, the PCB is limited on the clamping plates through the clamping assembly, the bidirectional driving mechanism works in the forward direction, the driving clamping plates drive the PCB to move towards the tin spraying box, when the PCB moves into the tin spraying box, the tin spraying head pumps tin to the tin storage box through the pump and sprays tin to the surface of the PCB, in the process, the bidirectional driving mechanism drives the PCB to move all the time, when the clamping plates drive the PCB to move to be in contact with the inclined surface of the baffle, the PCB extrudes the baffle to enable the baffle to move upwards until the PCB completely passes through the baffle, the baffle restores to the original position due to gravity, the bidirectional driving clamping plates drive the PCB to move in the reverse direction, when the PCB is in contact with the plane end of the baffle, the baffle blocks the PCB, the bidirectional driving mechanism drives the clamping plates to continue moving, separating the baffle from the clamping plate, dropping the baffle onto the conveying belt, finally realizing automatic tin spraying on the PCB, and repeating the steps;

2. in conclusion, through the mutual matching of all the mechanisms and parts in the device, the automatic tin spraying of the PCB is realized, and due to the adjustability of the clamping plate, the device can be suitable for the PCB with various sizes, so that the practicability of the device is greatly improved;

3. because the automaticity of device work, so make the work efficiency to the operation of tin on the PCB board obtain apparent promotion, consequently, this automatic tin spraying device is used in PCB board production is suitable for using widely.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an automatic tin spraying device for producing a PCB board.

FIG. 2 is a sectional view showing the connection between a solder box and a base in an embodiment of the automatic solder spraying apparatus for PCB production.

FIG. 3 is a sectional view showing the connection of the clamping plate and the guide bar in an embodiment of the automatic tin spraying apparatus for PCB production.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is an enlarged view of fig. 3 at B.

In the figure: 1-a base; 2-mounting a plate; 3-a first motor; 4-screw rod; 5-a tin storage box; 6-tin spraying box; 7-a threaded sleeve; 8-a square sleeve; 9-adjusting the sleeve; 10-a guide bar; 11-a bidirectional screw rod; 12-a second electric machine; 13-a movable sleeve; 14-a support plate; 15-a baffle; 16-a conveyor belt; 17-a movable plate; 18-a tin spraying head; 19-a piston rod; 20-clamping plate; 21-a triangular block; 22-an arc-shaped block; 23-a connecting rod; 24-a bump; 25-spring.

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.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 5, in an embodiment of the present invention, an automatic tin spraying device for PCB production includes a base 1, an installation plate 2 fixedly installed on a side end of the base 1, and a tin spraying box 6 fixedly installed on the base 1, and further includes:

the clamping plates 20 are symmetrically arranged above the base 1 through an adjusting mechanism, clamping components are arranged at the side ends of the clamping plates 20 and used for limiting the PCB between the openings of the tin spraying box 6, and the adjusting mechanism is used for adjusting the distance between the two clamping plates 20 so that the clamping plates 20 can be adapted to various PCBs;

the bidirectional driving mechanism is arranged on the base 1 and used for driving the clamping plate 20 to drive the PCB to move transversely in a reciprocating manner so as to enable the PCB to move to the tin spraying chamber 6 for tin coating operation, a baffle plate 15 is arranged at the side end of the tin spraying chamber 6 through the supporting plate 14, and the baffle plate 15 is movably arranged in a through groove arranged at the side end of the supporting plate 14 and used for taking out the PCB which is subjected to tin coating from the clamping plate 20 and enabling the PCB to fall onto a conveyor belt 16 arranged below the supporting plate 14 so as to realize automatic blanking of the PCB;

in detail, the bottom of the baffle 15 is designed to be an inclined plane, and a layer of rubber sleeve is sleeved outside the baffle 15, so that the PCB can be jacked up when being in contact with the inclined plane of the baffle 15, and the rubber sleeve can effectively protect the PCB;

what needs to be supplemented is that the tin spraying chamber 6 is fixedly installed above the base 1 through a support, the support is symmetrically provided with tin storage boxes 5, and the tin storage boxes 5 are connected with a plurality of groups of tin spraying heads 18 arranged in the tin spraying chamber 6 and used for carrying out tin coating operation on the PCB entering the tin spraying chamber 6.

In the embodiment of the invention, when the PCB needs to be tinned, the distance between the clamping plates 20 is adjusted by the adjusting mechanism to be matched with the PCB to be processed, the PCB is limited on the clamping plates 20 by the clamping assembly, the bidirectional driving mechanism works in the forward direction, the driving clamping plates 20 drive the PCB to move towards the tin spraying box 6, when the PCB moves into the tin spraying box 6, the tin spraying head 18 pumps tin to the tin storage box 5 through a pump and sprays tin on the surface of the PCB, in the process, the bidirectional driving mechanism drives the PCB to move all the time, when the clamping plates 20 drive the PCB to move to be in contact with the inclined surface of the baffle 15, the baffle 15 is extruded by the PCB to move upwards until the PCB completely passes through the baffle 15, the baffle 15 recovers from the original position due to gravity, the bidirectional driving mechanism works in the reverse direction, the driving clamping plates 20 drive the PCB to move in the reverse direction, when the PCB is in contact with the plane end of the baffle 15, the baffle 15 blocks the PCB, the two-way driving mechanism drives the clamping plate 20 to move continuously, the baffle 15 is separated from the clamping plate 20 and falls onto the conveyor belt 16, finally, automatic tin spraying on the PCB is realized, and the steps are repeated;

in conclusion, through the mutual matching of all the mechanisms and parts in the device, on one hand, the automatic tin spraying of the PCB is realized, and due to the adjustability of the clamping plate 20, the device can be suitable for the PCB with various sizes, so that the practicability of the device is greatly improved;

on the other hand, because the automaticity of device work, so make the work efficiency to the operation of tin on the PCB board obtain apparent promotion, consequently, this automatic tin spraying device is used in PCB board production is suitable for using widely.

As an embodiment of the present invention, the clamping assembly includes a triangular block 21 fixedly mounted at the bottom of the clamping plate 20, a spring 25 disposed in a through groove formed at a side end of the clamping plate 20, and an arc block 22 movably disposed in the through groove, the spring 25 connects the clamping plate 20 and the arc block 22;

in detail, the triangular block 21 has a fixing plate mounted on an end thereof adjacent to the mounting plate 2 for limiting a movable range of the PCB.

In the embodiment of the invention, when the PCB is required to be limited between the clamping plates 20, the PCB is placed on the arc-shaped block 22 and pressed downwards, so that the arc-shaped block 22 presses the spring 25 and moves into the through groove, and at the moment, the spring 25 accumulates elastic potential energy, and when the PCB is in contact with the triangular block 21, the spring 25 releases the elastic potential energy, so that the arc-shaped block 22 is abutted against the PCB and limited on the triangular block 21;

when the bidirectional driving mechanism works in the forward direction, the driving clamping plate 20 drives the PCB to be in inclined surface contact with the baffle plate 15, the PCB is limited by the fixing plate at the moment, the baffle plate 15 is extruded upwards, and when the bidirectional driving mechanism works in the reverse direction, the baffle plate 15 blocks the PCB, so that the PCB is moved to be separated from the clamping plate 20 from one end which is not provided with the fixing plate.

As an embodiment of the present invention, the adjusting mechanism includes a second motor 12 fixedly installed at a side end of the base 1, a screw assembly disposed at an output end of the second motor 12, and a guide assembly connecting the screw assembly and the clamp plate 20;

the screw assembly comprises a bidirectional screw rod 11 fixedly arranged on the output end of the second motor 12 and adjusting sleeves 9 symmetrically sleeved on the periphery of the bidirectional screw rod 11, and the two adjusting sleeves 9 are respectively matched with threads arranged on the bidirectional screw rod 11;

the guide assembly comprises a movable plate 17 arranged on the base 1, a guide rod 10 connecting the movable plate 17 and the adjusting sleeve 9, and a movable sleeve 13 sleeved on the periphery of the guide rod 10, wherein the movable sleeve 13 is connected with the clamping plate 20;

the lower end of the clamping plate 20 is movably provided with a connecting rod 23 through a convex block 24, and the connecting rod is used for connecting the two clamping plates 20 in series so as to enable the two clamping plates 20 to move synchronously.

In the embodiment of the invention, when the distance between the clamping plates 20 needs to be adjusted, the second motor 12 drives the two-way screw rod 11 to rotate, the adjusting sleeve 9 is driven to move relatively on the two-way screw rod 11, the adjusting sleeve 9 drives the guide rod 10 to move oppositely, so that the guide rod 10 drives the movable sleeve 13 to move, in the process, the clamping plates 20 drive the lugs 24 to move oppositely along the connecting rods 23, and the distance between the clamping plates 20 is adjusted.

As an embodiment of the present invention, the bidirectional driving mechanism includes a reciprocating assembly disposed at a side end of the mounting plate 2 and a sleeve assembly connecting the reciprocating assembly and the clamping plate 20;

the reciprocating moving assembly comprises a first motor 3 fixedly mounted on the base 1, a screw rod 4 arranged on the output end of the first motor 3 and a threaded sleeve 7 sleeved on the periphery of the screw rod 4;

the sleeve assembly comprises a square sleeve 8 fixedly arranged at the side end of the threaded sleeve 7 and a piston rod 19 movably arranged in the square sleeve 8, and the piston rod 19 is connected with the movable sleeve 13;

it should be noted that, the first motor 3 and the second motor 12 are both positive and negative rotation motors, and a 4IK/80 yyyjt motor is adopted, and the motor has stable performance, and of course, other types of motors may be adopted as long as the driving requirements are met, and this is not specifically limited in this application.

In the embodiment of the invention, when the first motor 3 is driven, the driving screw 4 drives the threaded sleeve 7 to reciprocate on the screw 4, in the process, the square sleeve 8 drives the movable sleeve 13 to move on the guide rod 10 through the piston rod 19, so as to drive the clamping plates 20 to move on the inner side of the guide rod 10, and the two clamping plates 20 synchronously move through the connecting rod 23;

when the adjusting sleeve 9 is driven to move by the second motor 12, the movable sleeve 13 drives the piston rod 19 to move in the square sleeve 8, so that not only the distance between the two clamping plates 20 can be adjusted, but also the piston rod 19 can drive the two clamping plates 29 to move back and forth.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.