WO2018036226A1

WO2018036226A1 - Multi-dimensional multi-planar multi-point synchronous tin-dispensing device and tin-dispensing method

Info

Publication number: WO2018036226A1
Application number: PCT/CN2017/085506
Authority: WO
Inventors: 吕晓胜; 郭林波; 刘峰; 王文长; 杨志勇; 黄武
Original assignee: 京信通信技术(广州)有限公司; 京信通信系统（中国）有限公司; 天津京信通信系统有限公司
Priority date: 2016-08-22
Filing date: 2017-05-23
Publication date: 2018-03-01
Also published as: CN106180951A; CN106180951B

Abstract

A multi-dimensional multi-point synchronous tin-dispensing device, which comprises: a machine base (1), a tin storage device, an operation platform (3) which is arranged on the machine base (1) and which is provided with a circumferential rotation mechanism, a front-and-back movement mechanism (2), vertical posts (4) disposed at the left and right sides of the machine base (1), a cross beam (7) which connects top ends of the two vertical posts (4) and which is provided with a left-and-right movement mechanism, a lifting mechanism (8) which is connected to the left-and-right movement mechanism and which is capable of left-and-right movements, a multi-branch tin discharging terminal (5) which is connected to the other end of the lifting mechanism (8) and which is connected to the tin storage device, a tin discharging control module which is electrically connected to the multi-branch tin discharging terminal (5) and which controls the multi-branch tin discharging terminal (5) to discharge tin synchronously, and a control system. The present invention also relates to a tin dispensing method to be implemented by the tin-dispensing device. By means of a multiple axial movement system, the positioning of a workpiece and a plurality of tin discharging nozzles of the multi-branch tin discharging terminal (5) may be achieved; by using the tin discharging control module to control the multi-branch tin discharging terminal (5) to discharge tin synchronously, multi-dimensional multi-point synchronous welding may be achieved, which improves welding efficiency.

Description

Multi-dimensional multi-plane multi-point synchronous point tin device and point tin method

Technical field

The invention relates to the field of welding technology, in particular to related technologies related to welding processing in a communication device, in particular to a multi-dimensional multi-plane multi-point synchronous point tin device and a tin point method.

Background technique

In the field of mobile communication technology, the base component of the base station antenna is mainly formed by welding metal structural members (radiation units) and different components. In each combination, the welding process details vary greatly, and the level of control of the amount of tin used in the welding parameters determines the level of welding yield. In tin brazing, 80% of the quality problems occur in the tin control process. Among the problems that are prone to control tin, the following two phenomena are particularly prominent: uneven usage and shifting position of tin control.

Solder control, the industry's common method is the SMT industry's overall stencil printing tin, or the use of manual point tin for point tin. Since the metal structure of the base station antenna is a special-shaped structural member, the solder joints are distributed in multiple directions and the number of solder joints is large, and the whole tin printing process of the steel mesh cannot be used, and only the tin can be used for the spot tin. However, the point of the tin can not be synchronized multiple points, let alone the multi-dimensional synchronization.

There are some innovations in the industry, that is, using a three-dimensional robot to drive a single point tin terminal to perform the tin of the required solder. Although it can also satisfy the quantitative control of the amount of tin, it is still impossible to perform multi-point synchronous tinning operation, only one by one. The solder joints are tinned sequentially and the efficiency is extremely low.

Summary of the invention

The primary object of the present invention is to provide a multi-dimensional multi-planar synchronous spot tin device that can improve welding efficiency and ensure welding quality.

Another object of the present invention is to provide a multi-dimensional multi-planar synchronous point tin process implemented by the multi-dimensional multi-plane synchronous dot tin device described above.

In order to achieve the above object, the present invention provides the following technical solutions:

A multi-dimensional multi-plane multi-point synchronous point tin device, comprising a machine table and a tin storage device, further comprising a working platform and a driving work device arranged on the machine table for placing a workpiece and having a circumferential rotating mechanism a front and rear moving mechanism for moving the platform along the front and rear direction of the machine, a column disposed on the left and right sides of the machine, a beam spanning between the top ends of the two columns and having a left and right moving mechanism, and one end connected to the left and right moving mechanism a lifting mechanism movable along the beam to the left and right, a multi-manifact tin-out terminal connected to the other end of the lifting mechanism and connected to the tin storage device, for electrically connecting with the multi-manifold tin-out terminal and controlling the multi-manifold tin-out The tin-out control module of the plurality of tin-out nozzles of the terminal synchronously outputs tin, and the control system electrically connected with the circumferential rotating mechanism, the front-rear moving mechanism, the lifting mechanism and the tin-out control module.

Preferably, the tin-out control module includes a gas flow distributor for controlling the flow of gas of each of the manifolds of the multi-manifold.

Preferably, the airflow distributor synchronously vents a plurality of conduits of the multi-manifold tin-out terminal and controls the pressure and outgassing time of each pipeline airflow.

Preferably, the airflow distributor may cause the multi-manifold exiting tin terminal to form a negative pressure inside the tube to allow the fluid tin to reflow after the gas outlet time is reached.

Further, a multi-point positioning assembly is further included, and the multi-manifold tin-out terminal is connected to the tin storage device by the multi-point positioning assembly.

Preferably, the multi-pivot positioning component has a blind-proof blind connection, and the multi-manifact tin-out terminal is blindly connected to the connection end of the multi-pivot positioning component by its own latching structure.

Preferably, the multi-pivot positioning component is a ring type multi-point structure or an array type multi-point structure.

Preferably, the plurality of nozzles of the multi-manifold tin-out terminal have the same or different shape and/or diameter.

Preferably, the outlet of the tin nozzle is one or more of a circular shape, an elliptical shape, a triangular shape, a rectangular shape, a step shape and other polygonal shapes.

Preferably, the multi-manifold tin-out terminal has a limiting structure for ensuring the distance between the tin nozzle and the tin depositor.

Preferably, the multi-manifold tin-out terminal has a telescopic point tin separation structure on the side of the tin-out nozzle.

Preferably, the working platform has a positioning locking mechanism for achieving rapid positioning and locking of the workpiece.

Preferably, the control system has a program group switching module for quickly switching between a plurality of groups of preset programs in the control system, and the control system can pre-store the workpiece through offline programming of the teach pendant Location program.

Preferably, the front and rear moving mechanism, the circumferential rotating mechanism, and the lifting mechanism are moved by a screw drive system driven by a stepping motor.

Preferably, the number of beams and/or the forward and backward moving mechanisms is adjusted to accommodate the number of solder joints required for the workpiece.

A multi-dimensional multi-plane multi-spot synchronization point tin method, comprising the multi-dimensional multi-plane multi-point synchronization point tin device described above, the method comprising the steps of: positioning and locking a workpiece preset on a working platform, The workpiece is a pre-assembled structure of the product to be welded and the workpiece to be welded; the tin device is activated to automatically position the plurality of tin nozzles of the multi-manifold tin-out terminal to a preset position; and the multi-manifold tin-out terminal is controlled The plurality of tin nozzles synchronously discharge tin to a plurality of solder joint positions; after the tin tin is completed, the soldered workpiece is unlocked and removed from the working platform.

Further, after the plurality of tin nozzles of the multi-manifold tin-out terminal are synchronized to the tin-out time of the plurality of solder joints, the fluid tin in the tin terminal tube is controlled to flow back.

When the position information of the workpiece solder joint does not exist in the preset program of the control module, the solder joint position information is directly programmed to the tin device through the teach pendant.

Compared with the whole tin printing, single point tin point tin process, the present invention has the following advantages and benefits:

1. The multi-dimensional multi-planar multi-point synchronous point tin device of the invention can realize the fast and precise positioning of the workpiece through the movement of the multi-dimensional multi-axis system, and realize the special-shaped by synchronously controlling the tin output of the multi-manifold out of the tin terminal. The welding tin material control requirements for the welding of the three-dimensional structural parts ensure the quantification (including differentiation) control of the tin. Based on the synchronization point tin, the differential management of the amount of tin between the solder joints can be realized.

2. Synchronization of multi-site tin is realized by multi-dimensional multi-plane multi-spot synchronous point tin process point tin. At the same time, due to multi-dimensional multi-plane synchronization, the adjustment steps of the workpiece and/or the spot tin are reduced, By hand-pointing the tin process, the efficiency is increased by several times or even ten times.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a perspective view of a multi-dimensional multi-planar multi-point sync point tin device of the present invention;

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

1 shows a multi-dimensional multi-planar multi-point synchronization point tin device (hereinafter referred to as "dot tin device") of the present invention, including a tin storage device (not shown, the same below), a machine table 1, and a machine table. The working platform 3 on the 1st, the front and rear moving mechanism 2, the left and right moving mechanism (not shown), the lifting mechanism 8, the multi-manifold tin-out terminal 5, the tin-out control module (not shown), and the control system (not labeled).

Wherein, the left and right sides of the machine table 1 are provided with a pair of uprights 4, and the top ends of the opposite columns 4 are bridged by the cross beams 7.

The work platform 3 has a circumferential rotation mechanism (not shown) so that it can be rotated circumferentially, thereby adjusting the orientation of the workpiece on the workpiece.

The front and rear moving mechanism 2 is disposed between the machine table 1 and the work platform 3, and the front and rear moving mechanism 2 can drive the work platform 3 to move in the front-rear direction of the machine table.

The left and right moving mechanism is disposed on the beam 7, and one end of the lifting mechanism 8 is connected to the left and right moving mechanism, so that the lifting mechanism 8 can move in the left and right direction of the machine 1.

The multi-manifold tin-out terminal 5 is connected to the other end of the lifting mechanism 8 such that the multi-manifold tin-out terminal 5 moves up and down by the lifting mechanism 8.

The tin-out control module is connected to the multi-manifold tin-out terminal 5 for controlling the synchronous tin-out of the tin-out nozzle of the plurality of pipelines of the multi-manifold tin-out terminal.

The control system is electrically connected to the circumferential rotating mechanism, the front and rear moving mechanism, the left and right moving mechanism, the lifting mechanism and the tinning control module to control the operation of each mechanism by a preset program.

Wherein the left and right moving mechanism, the front and rear moving mechanism, the lifting mechanism and the circumferential rotating mechanism The four-axis motion system is configured to realize the positioning of the workpiece and accurately move the respective tin nozzles of the multi-manifold tin-out terminal to a position where tin is required. Wherein, the front and rear moving mechanism and the circumferential rotating mechanism are respectively used for moving the workpiece forward and backward and circumferentially, that is, realizing the positioning of the workpiece; the left and right moving mechanism and the lifting mechanism are respectively used for realizing the left and right movement of the tin nozzle and moving up and down .

The spot tin device of the invention realizes the positioning of the workpiece and the movement of the multi-manifold tin-out terminal through the four-axis motion system, and controls the plurality of tin-out nozzles of the multi-manifold tin-out terminal to synchronously output tin through the tin-out control module. It can complete the synchronous point tin work of multiple solder joints of multiple planes with multiple dimensions, which greatly improves the welding efficiency compared with the traditional tin-doping process.

Preferably, the tin-out control module includes a gas flow distributor for controlling a gas flow rate of each of the plurality of manifold outlet terminals, and the amount of tin per pipe is controlled by controlling the gas flow rate. Control, with precise control features.

Specifically, the airflow distributor synchronously outputs air to a plurality of pipelines of the multi-manifact out-out tin terminal, and controls a pressure value and an outgassing time of each pipeline airflow.

In addition, the airflow distributor may also cause the multi-manifold exiting tin terminal to form a negative pressure inside the pipe after the gas outlet time is reached, so that the fluid tin is recirculated, so that the pressure of the raw material in the pipeline of the multi-manifold exiting tin terminal is balanced before and after. Through the recirculation function of the airflow distributor, the broken tin can be absorbed back into the tube, avoiding the phenomenon of uneven tin content caused by tin residue, ensuring the consistency of the solder joint and improving the welding quality.

Further, the tin device also includes an integrated multi-point positioning assembly 6 that is coupled to a tin storage device (not shown) by the multi-point positioning assembly 6. Wherein, the multi-pivot positioning assembly 6 can be positioned by a precise pin-assisted thread structure to satisfy the rapid replacement of each multi-pivot positioning structure 6. The multi-point positioning component 6 is a ring type multi-point structure or an array type multi-point structure.

Preferably, the multi-pivot positioning component 6 has a lock-proof locking position (ie, a connection end), and the multi-manifold out-out tin terminal 5 has a card structure matched with the lock position of the multi-pivot positioning component 6 The fast blind connection between the multi-manifold tin-out terminal 5 and the multi-point positioning assembly 6 is realized by the cooperation of the card structure and the lock structure.

Preferably, the shape and/or the diameter of the plurality of nozzles of the multi-manifact tinout terminal 5 are the same or different. The cross section of the tin nozzle is one or more of a circular shape, an elliptical shape, a triangular shape, a rectangular shape, a step shape, and other polygonal shapes.

By setting the shape or the size of the plurality of nozzles of the multi-manifact tin-out terminal 5, the amount of tin in each pipeline can be controlled differently, and at the same time, it can be adapted to solder joints of different shapes or/and sizes. One-time welding to improve welding efficiency.

Preferably, the multi-manifact tin-out terminal 5 has a limiting structure for ensuring the distance between the tin nozzle and the tin storage device, so that the tin storage device and the multi-point positioning component can be separated and designed, so that the tin storage device is replaced. Tin does not affect the alignment of the tin nozzle, ensuring the repeatability of the tin position.

Preferably, the multi-manifact tin-out terminal 5 has a telescopic point tin separation structure on the side of the tin-out nozzle, which can apply a reaction force to the multi-manifact tin-out terminal 5 after the tin-out of the tin-out nozzle is completed. The tin nozzle is separated from the tin at the solder joint. On the one hand, the tin can be left untouched, and on the other hand, the workpiece is not affected and the positioning of the workpiece is affected.

Preferably, the work platform 3 further has a positioning locking mechanism for realizing rapid positioning and locking of the workpiece.

Preferably, the control system has a program group switching module for quickly switching between a plurality of sets of programs preset in the control system, and the control system can pre-store the workpiece position program through off-line programming of the teach pendant.

Preferably, the circumferential rotation mechanism, the front and rear movement mechanism, the right and left movement mechanism, and the lifting mechanism are moved by a screw drive system driven by a stepping motor. Wherein, the stepping motor is preferably a precision stepping motor, and the maximum moving speed is 800 mm/sec, and the repeatable precision positioning accuracy is up to ±0.01 mm.

Through the mutual cooperation of hardware and software, the spot tin device of the present invention can be applied to the welding of different products, and each product can have multiple dimensions and multiple planes of multiple solder joints.

In addition, the number of beams and/or forward and backward moving mechanisms is adjusted to accommodate the number of solder joints required for the workpiece.

In addition, the present invention also relates to the tin-spot method implemented by the above-mentioned tin-spot device, and specifically includes the following steps:

Positioning and locking the workpiece preset on the work platform;

The workpiece placed on the working platform is quickly positioned and locked by the positioning locking mechanism of the working platform, and the required welding points of the workpiece are realized by the action of the front and rear moving mechanism and the circumferential rotating mechanism. Wherein, the workpiece is a pre-assembled structure of a metal structural member and a welded member. The side of the workpiece The position is realized by the front and rear moving mechanism and the circumferential rotating mechanism according to the control command output by the control system based on the preset product position information program therein.

Controlling a plurality of tin nozzles of the multi-manifold tin-out terminal to automatically position to a preset position;

The plurality of tin nozzles of the multi-manifold tin-out terminal are correspondingly moved to a preset position corresponding to each solder joint by the left-right moving mechanism and the lifting mechanism. The position of the tin nozzle is driven by the control system to output the left and right moving mechanism and the lifting mechanism according to the control command outputted by the product position information program therein.

Controlling a plurality of tin nozzles of the multi-manifold tin-out terminal to synchronously discharge tin to a plurality of solder joint positions;

When the workpiece is positioned and the tin nozzle of the multi-manifold tin-out terminal is moved to the preset position, the tin-out control module controls the plurality of tin-out nozzles to synchronously discharge the tin under the action of the control system, thereby realizing the metal structural member and the Welding of welding.

After the tin is completed, the welded workpiece is unlocked and removed from the work platform.

Further, after the plurality of tin-out nozzles of the multi-manifact tin-out terminal synchronously reach the tin-out time of the tin at the plurality of solder joint positions, the fluid tin in the tin terminal tube is controlled to be recirculated to avoid the tin residue remaining. The phenomenon of unevenness ensures the consistency of welding.

When the position information of the workpiece solder joint does not exist in the preset program of the control module, the solder joint position information is offlinely programmed to the tin device through the teach pendant to adapt to the welding of different products.

The above is only a part of the embodiments of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

A multi-dimensional multi-plane multi-spot synchronous spot tin device, comprising a machine table and a tin storage device, characterized by further comprising a working platform disposed on the machine table for placing a workpiece and having a circumferential rotating mechanism, driving the work a front and rear moving mechanism for moving the platform along the front and rear direction of the machine, and a column disposed on the left and right sides of the machine, spanning between the top ends of the two columns and having a beam of the left and right moving mechanism, and one end is connected with the left and right moving mechanism a lifting mechanism movable to the left and right along the beam, a multi-manifact tin-out terminal connected to the other end of the lifting mechanism and connected to the tin storage device, for electrically connecting with the multi-manifold tin-out terminal and controlling the multi-manifold tin-out terminal A plurality of tin-out nozzles for synchronous tin-out of the tin-out nozzle, and a control system electrically connected to the circumferential rotating mechanism, the front-rear moving mechanism, the left-right moving mechanism, the lifting mechanism, and the tin-out control module.
The multi-dimensional multi-plane multi-point synchronization point tin device of claim 1 , wherein the tin-out control module comprises a gas flow for controlling each of the tubes of the multi-manifold tin-out terminal Airflow distributor.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 2, wherein the air flow distributor synchronously outputs air to a plurality of pipes of the multi-manifact tin-out terminal, and controls each pipe air flow. Pressure and venting time.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 3, wherein the air flow distributor can also form a negative pressure inside the multi-manifold tin-out terminal to make the fluid tin after the air outlet time is reached. Reflux.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, further comprising a multi-point positioning assembly, wherein the multi-manifold tin-out terminal is connected to the tin storage device by means of the multi-point positioning assembly .
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 5, wherein the multi-point positioning assembly has a blind-proof connection terminal, and the multi-manifact tin-out terminal is provided by itself The card structure is blinded to the connection end of the multi-pivot positioning component.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 5, wherein the multi-point positioning component is a ring type multi-point structure or an array type multi-point structure.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, wherein The shape and/or the diameter of the plurality of nozzles of the multi-manifact tin-out terminal are the same or different.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 8, wherein the cross section of the nozzle is circular, elliptical, triangular, rectangular, stepped, and one of other polygons. Or a variety.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1 , wherein the multi-manifold tin-out terminal has a limiting structure for ensuring a distance between the tin nozzle and the tin storage device.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, wherein the multi-manifold tin-out terminal has a telescopic point tin separation structure on a side of the tin-out nozzle.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, wherein the working platform has a positioning locking mechanism for realizing rapid positioning and locking of the workpiece.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, wherein the control system has a program group switching module for quickly switching between a plurality of groups of preset programs in the control system, and The control system can pre-store the workpiece position program through offline programming of the teach pendant.
The multi-dimensional multi-plane multi-point synchronization point tin device according to claim 1, wherein the circumferential rotating mechanism, the front and rear moving mechanism, the left and right moving mechanism, and the lifting mechanism are driven by a stepper motor driven screw drive motion.
The multi-dimensional multi-planar multi-point sync point tin device of claim 1 wherein the number of beams and/or front and rear moving mechanisms is adapted to the number of solder joints required for the workpiece.
A multi-dimensional multi-plane multi-spot synchronization point tin method, comprising the multi-dimensional multi-plane multi-point synchronization point tin device according to any one of claims 1 to 15, the method comprising the steps of:

Positioning and locking a workpiece preset on the working platform, the workpiece being a pre-assembled structure of the product to be welded and the welded part;

Controlling a plurality of tin nozzles of the multi-manifold tin-out terminal to automatically position to a preset position, the preset position Set to match the position of the solder joint;

Controlling a plurality of tin nozzles of the multi-manifold tin-out terminal to synchronously discharge tin to a plurality of solder joint positions;

After the tin is completed, the welded workpiece is unlocked and removed from the work platform.
The multi-dimensional multi-plane multi-spot synchronous point tin method according to claim 16, wherein the plurality of tin-out nozzles of the multi-manifact tin-out terminal are synchronized to the tin-out time of the plurality of solder joints Control the flow of fluid tin in the tin terminal tube.
The multi-dimensional multi-plane multi-spot synchronization point tin method according to claim 16, wherein when the position information of the workpiece solder joint does not exist in the preset program of the control module, the tin device is turned to the point by the teach pendant. Offline programming of input solder joint position information.