CN110587130B

CN110587130B - Laser welding system

Info

Publication number: CN110587130B
Application number: CN201910975091.3A
Authority: CN
Inventors: 颜志诚; 刘晓清
Original assignee: Bofeite Shanghai Intelligent Equipment Co ltd
Current assignee: Bofeite Shanghai Intelligent Equipment Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2024-04-09
Anticipated expiration: 2039-10-14
Also published as: CN110587130A

Abstract

The invention relates to a laser welding system, comprising: the welding room (1), the inside of the welding room (1) is a working chamber, and a chamber opening (2) is arranged on the side face of the welding room; the rotary workbench is arranged in the working chamber and is close to the chamber opening (2), the rotary workbench comprises a plurality of open stations (3), and the peripheral side surface of each station (3) is a workpiece opening with a shape matched with the chamber opening (2); the sealing components are movably arranged on the inner wall of the welding room (1) and distributed on the peripheral edge of the cavity opening (2); the control component is connected with the sealing component, and when a single station (3) of the rotary workbench is opposite to the cavity opening (2), the control component controls the sealing component to be close to the station (3) so as to seal the station (3) with the cavity opening (2), or controls the sealing component to be far away from the station (3) so as to open the station (3). Compared with the prior art, the invention has good sealing effect and simple driving.

Description

Laser welding system

Technical Field

The invention relates to the technical field of machining, in particular to a laser welding system.

Background

The process of laser welding and the like in the automobile production process has a sealing requirement on the operation environment is common, and the development of the process has an increasing trend. The process of operating in the house is now a gradually applied way in most production plants due to the demands of automation and rapidity of production and the increasing use of special processes for improving efficiency. At this time, the sealing of the house is also a necessary item, and how to better and more conveniently finish the sealing of the house is also a problem which is preferentially concerned and solved by the factory. The turntable form is a preferred form for facilitating product switching and product sorting. Meanwhile, the use condition of the turntable and the house body is matched, and at the moment, when one surface of the turntable needs to interact with the outer side of the house body, the effective seal is formed after the turntable rotates in place on the premise that the normal process of the turntable is not affected.

The mechanism for sealing the laser house and the turntable has a certain trend in adopting a movable type for sealing.

Patent CN209272737U discloses a double-station laser welding device, which comprises a laser welding head, a welding room, a shielding door, a welding positioning tool and an automatic feeding device, wherein the welding room is provided with a welding working chamber, the laser welding head is arranged in the welding working chamber, and the side part of the welding working chamber is also provided with a chamber opening; the shielding door can be rotatably arranged at the cavity opening, two sides of the shielding door are respectively provided with a group of work tables for placing workpieces to be welded, and the two work tables are alternately positioned in the welding work cavity along with the rotation of the shielding door; a group of welding positioning tools for positioning the workpieces to be welded are arranged on each workbench; the automatic feeding device comprises a material rack for stacking materials and a carrying mechanism for transferring the materials on the material rack to the workbench one by one. The welding equipment can only realize double-station conversion, and the welding processing area is isolated from the feeding and discharging areas by adopting the shielding door, so that the isolation effect is not ideal.

Disclosure of Invention

The invention aims to solve the problems and provide a laser welding system which can realize the welding of workpieces in a closed space and can automatically control the switching of a station for holding the welded workpieces and a station for holding the workpieces to be welded.

The aim of the invention is achieved by the following technical scheme:

a laser welding system, the system comprising:

the welding room is internally provided with a working chamber, and a chamber opening is formed in the side face of the welding room;

the rotary workbench is arranged in the working chamber and is close to the chamber opening, the rotary workbench comprises a plurality of open stations, the peripheral side surface of each station is provided with a workpiece opening matched with the chamber opening in shape, and when the stations are opposite to the chamber opening, the workpiece opening is used as a take-out opening of a welded workpiece and a put-in opening of the workpiece to be welded;

the sealing components are movably arranged on the inner wall of the welding room and distributed on the peripheral edge of the cavity opening;

the control assembly is connected with the sealing assembly, and when a single station of the rotary workbench is opposite to the cavity opening, the control assembly controls the sealing assembly to be close to the station to seal the station with the cavity opening, or controls the sealing assembly to be far away from the station to open the station.

Further, seal assembly is including setting up the side seal board of the upper seal board, downside and the left and right sides in cavity mouth upside, be equipped with the baffle between the adjacent station, top and bottom are open, the shape of upper seal board cooperatees with the top horizontal cross-section of station, and the shape of lower seal board cooperatees with the shape of bottom horizontal cross-section, and the vertical length of side seal board is the same with the vertical length of baffle. The top and the bottom of the station of the rotary workbench are open, and by arranging the large-area upper and lower sealing plates capable of sealing the station, not only can the consumable of the rotary workbench be reduced, but also sparks or other sparks generated in the welding process can be directly sprayed out during laser welding without rebound of the top and the bottom, so that the welding effect is affected; the partition plates are arranged between the adjacent stations, so that the width of the side sealing plates is reduced, when the rotary workbench rotates, the side sealing plates serving as sealing assemblies are opened, and enough space can be reserved for the rotary workbench by the small opening amplitude.

Further, the rotary workbench comprises a driving base, a workbench platform and a workbench support, wherein the driving base comprises a motor, a rotary disc is arranged in the middle of the driving base, the rotary disc is connected with the motor in a transmission manner, the upper side of the rotary disc is fixedly connected with the workbench platform, the workbench support is arranged on the upper side of the workbench platform, the rotary workbench is divided into a plurality of stations, and each station is provided with a workpiece mounting seat.

Further, the workbench platforms are of equal pentagons, each vertex angle is provided with a workpiece mounting seat, the workbench support is in a six shape, the workbench platforms are equally divided into five stations, and the workpiece mounting seats are located on the central axis of each station. The workpiece mounting seat is arranged at the vertex angle of the pentagonal workbench platform, so that the workpiece can be more conveniently mounted and dismounted.

Further, the workbench platform is provided with a through hole, the workbench bracket comprises a coaming arranged around the through hole, and the coaming is concentric with the workbench platform and is in an equilateral pentagon shape.

Further, the part of the lower sealing plate connected with the workbench platform is in an inverted W shape, and the workpiece mounting seat is positioned at the concave part of the W-shaped lower sealing plate.

Further, a plurality of support rails parallel to the rotary workbench are arranged on the upper side of the cavity opening, extend into the working cavity and are positioned on the upper side of the upper sealing plate, and the top of the welding room is connected with the upper sealing plate through a telescopic rod. The possibility that the tail end of the upper sealing plate is easy to bend due to gravity is reduced because the upper sealing plate is only supported by the sliding rail when lifted upwards to be suspended.

Further, the bottom of the lower sealing plate is provided with a supporting rod, and the supporting rod is arranged along the periphery of the lower sealing plate in a circle. The thickness of the lower sealing plate can be reduced by arranging the supporting rods, and the lower sealing plate can be supported in a station opening state.

Further, the lower edge of the cavity opening is at the same height as the workbench platform. The sealing performance of the rotary workbench and the sealing assembly is guaranteed, and the rotary workbench is smoother in the process of installing and detaching workpieces.

Further, the control assembly comprises a plurality of air cylinders, a control console and a plurality of groups of sliding rails which are arranged in parallel, the air cylinders are connected with the control console and the sealing assemblies, the sliding rails and the sealing assemblies are arranged on the inner wall of the welding room in one-to-one correspondence, the sealing assemblies are in sliding limiting connection with the sliding rails, and the air cylinders drive the sealing assemblies to reciprocate on the sliding rails.

The rotary workbench is provided with five equally-divided stations, a chamber opening is formed in one side face of a welding room, the rotary workbench is arranged close to the chamber opening, when the workpiece is welded and needs to be unloaded, and the workpiece to be welded is loaded and ready for welding, a cylinder is driven to move a sealing assembly along a sliding rail, an upper sealing plate is lifted, a telescopic rod is retracted at the moment, a lower sealing plate is lowered, left and right side sealing plates slide outwards, the sealing state of the stations is relieved, the inside and outside of the welding room are communicated, a motor is started to rotate the rotary workbench for 72 degrees, the stations for unloading the workpiece to be welded are opposite to the chamber opening, a cylinder is driven to move the sealing assembly along the sliding rail, the upper sealing plate is lowered to cover the top of the stations, the lower sealing plate is lifted to cover the bottom of the stations, and the left and right side sealing plates are slid inwards to be connected with a partition plate, and a station with only the workpiece opening being opened is formed.

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

(1) The laser welding room is sealed by the sealing component, namely the sealing plate, so that light leakage generated by mechanisms such as a hairbrush and the like can be avoided;

(2) The top and the bottom of the workbench bracket are opened, an upper sealing plate and a lower sealing plate which can completely cover the top and the bottom of the workbench bracket are arranged on the inner wall of the welding room, so that the sealing of the laser welding room is realized, the overlarge dead weight of the rotary workbench is avoided, and the load of the driving base is increased;

(3) The workbench bracket is provided with the partition plate, so that the width of the side sealing plate can be reduced, and under the condition of small opening amplitude, a space enough for the rotary workbench to rotate is provided;

(4) The cylinder is adopted to move the sealing component, so that the stability of the whole system is improved, the system is simple and efficient, and the cost of power and bearing is greatly reduced;

(5) The sliding rail is provided with a limit, and the precision and the repeatability are high.

Drawings

FIG. 1 is a schematic view of the internal structure of a laser welding system according to an embodiment of the present invention;

FIG. 2 is a schematic view of the external structure of a laser welding system according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the driving base;

FIG. 4 is a schematic view of a structure of a table platform;

FIG. 5 is a schematic view of a structure of a table support;

FIG. 6 is a schematic view of the structure of the upper closure plate;

FIGS. 7 and 8 are schematic views of the structure of the table support and the upper seal plate;

FIG. 9 is a schematic view of the lower seal plate;

FIGS. 10-11 are schematic structural views of left and side closure plates;

in the figure: 1-a welding room; 2-chamber port; 3-station; 4-upper sealing plates; 5-lower sealing plates; 6-side sealing plates; 7-a separator; 8-driving a base; 9-a workbench platform; 10-a workbench bracket; 11-an electric motor; 12-rotating the disc; 13-a workpiece mounting seat; 14-through holes; 15-coaming; 16-support rails; 17-a telescopic rod; 18-supporting rods; 19-slide rail.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples.

Examples

A laser welding system, as shown in fig. 1 and 2, comprising:

the welding room 1, the inside of the welding room 1 is a working chamber, a chamber opening 2 is arranged on the side surface of the welding room, and the welding room in fig. 1 only comprises a part of room body provided with the chamber opening;

the rotary workbench is arranged in the working chamber and is adjacent to the chamber opening 2, the rotary workbench comprises a plurality of open stations 3, and the peripheral side surface of each station 3 is a workpiece opening with a shape matched with the chamber opening 2;

the sealing components are movably arranged on the inner wall of the welding room 1 and distributed on the peripheral edge of the cavity opening 2;

the control component is connected with the sealing component, and when a single station 3 of the rotary workbench is opposite to the chamber opening 2, the control component controls the sealing component to be close to the station 3 to seal the station 3 with the chamber opening 2 or controls the sealing component to be far away from the station 3 to open the station 3.

The rotary table comprises a driving base 8, a table platform 9 and a table bracket 10. As shown in fig. 3 and 4, the driving base 8 comprises a motor 11, a rotary disk 12 is arranged in the middle of the driving base, the rotary disk 12 is in transmission connection with the motor 11, the upper side of the rotary disk 12 is fixedly connected with the workbench platform 9, the workbench bracket 10 is arranged on the upper side of the workbench platform 9, the rotary workbench is divided into a plurality of work stations 3, and each work station 3 is provided with a work piece mounting seat 13. The workbench platform 9 is provided with a through hole 14, the workbench bracket 10 comprises a coaming 15 arranged around the through hole 14, and the coaming 15 is concentric with the workbench platform 9 and takes the shape of an equilateral pentagon. As shown in fig. 4, the workbench platform 9 is of an equilateral pentagon shape, each vertex angle is provided with a workpiece mounting seat 13, and the workbench platform 9 is at the same height as the lower edge of the chamber port 2. As shown in fig. 5, 7 and 8, the workbench bracket 10 is arranged on the upper side of the workbench platform 9 and is in a shape of a six, the workbench platform 9 is equally divided into five stations 3, the coaming 15 is arranged around the through hole 14, the coaming 15 is concentric with the workbench platform 9 and is in an equal pentagon shape, the workpiece mounting seat 13 is positioned on the central axis of each station 3, the partition plates 7 are arranged between the adjacent stations 3, the top and the bottom are open, and the partition plates 7 of the adjacent stations are connected only through a plurality of connecting rods.

The sealing assembly comprises an upper sealing plate 4 arranged on the upper side of the chamber opening 2, a lower sealing plate 5 arranged on the lower side of the chamber opening and side sealing plates 6 arranged on the left side and the right side of the chamber opening, wherein the arrangement position and the shape of the upper sealing plate 4 are specifically shown in fig. 6, the sealing assembly is installed on a roof in a lifting mode, in addition, as shown in fig. 1, a plurality of supporting rails 16 parallel to a rotary workbench are arranged on the upper side of the chamber opening 2, and the supporting rails 16 extend into the working chamber and are positioned on the upper side of the upper sealing plate 4 and are connected with the upper sealing plate 4 through telescopic rods 17. The part of the lower sealing plate 5 connected with the workbench platform 9 is in an inverted W shape, is matched with the shape of the horizontal section of the bottom end of the station 3, the workpiece mounting seat 13 is positioned at the concave part of the W-shaped lower sealing plate 5, the bottom of the lower sealing plate 5 is also provided with a supporting rod 18, and the supporting rod is arranged along the periphery of the lower sealing plate 5 in a circle. As shown in fig. 10 and 11, the vertical length of the side seal plates 6 is the same as the vertical length of the separator 7.

The control assembly comprises a plurality of air cylinders, a control console and a plurality of groups of sliding rails 19 which are arranged in parallel, the air cylinders are connected with the control console and the sealing assemblies, the sliding rails 19 and the sealing assemblies are arranged on the inner wall of the welding room 1 in a one-to-one correspondence mode, the sealing assemblies are connected with the sliding rails 19 in a sliding mode, the air cylinders drive the sealing assemblies to reciprocate on the sliding rails 19, and the sliding rails 19 corresponding to the side sealing plates 6 can be seen in fig. 10 and 11.

As shown in fig. 2, the welding room 1 is a two-layer room body, and a plurality of stairs are arranged on the side surface of the room body.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims

1. A laser welding system, the system comprising:

the welding room (1), the inside of the welding room (1) is a working chamber, and a chamber opening (2) is arranged on the side face of the welding room;

the rotary workbench is arranged in the working chamber and is close to the chamber opening (2), the rotary workbench comprises a plurality of open stations (3), and the peripheral side surface of each station (3) is a workpiece opening with a shape matched with the chamber opening (2);

the sealing components are movably arranged on the inner wall of the welding room (1) and distributed on the peripheral edge of the cavity opening (2);

the control component is connected with the sealing component, and when a single station (3) of the rotary workbench is opposite to the cavity opening (2), the control component controls the sealing component to be close to the station (3) to seal the station (3) with the cavity opening (2), or controls the sealing component to be far away from the station (3) to open the station (3);

the sealing assembly comprises an upper sealing plate (4) arranged on the upper side of the cavity opening (2), a lower sealing plate (5) arranged on the lower side of the cavity opening and side sealing plates (6) arranged on the left side and the right side of the cavity opening, a partition plate (7) is arranged between adjacent stations (3), the top and the bottom of each station are open, the shape of the upper sealing plate (4) is matched with the top horizontal section of each station (3), the shape of the lower sealing plate (5) is matched with the shape of the bottom horizontal section, and the vertical length of each side sealing plate (6) is identical to the vertical length of each partition plate (7);

a plurality of support rails (16) parallel to the rotary workbench are arranged on the upper side of the chamber opening (2), the support rails (16) extend into the working chamber and are positioned on the upper side of the upper sealing plate (4), and the top of the welding room (1) is connected with the upper sealing plate (4) through a telescopic rod (17);

the rotary workbench comprises a driving base (8), a workbench platform (9) and a workbench support (10), wherein the driving base (8) comprises a motor (11), a rotary disc (12) is arranged in the middle of the driving base (8), the rotary disc (12) is in transmission connection with the motor (11), the upper side of the rotary disc (12) is fixedly connected with the workbench platform (9), the workbench support (10) is arranged on the upper side of the workbench platform (9), the rotary workbench is divided into a plurality of stations (3), and each station (3) is provided with a workpiece mounting seat (13);

the workbench platforms (9) are of equal pentagons, each vertex angle is provided with a workpiece mounting seat (13), the workbench supports (10) divide the workbench platforms (9) into five equal parts to form five stations (3), and the workpiece mounting seats (13) are positioned on the central axis of each station (3);

the workbench platform (9) is provided with a through hole (14), the workbench bracket (10) comprises a coaming (15) arranged around the through hole (14), and the coaming (15) is concentric with the workbench platform (9) and takes the shape of an equilateral pentagon;

the part of the lower sealing plate (5) connected with the workbench platform (9) is in an inverted W shape, and the workpiece mounting seat (13) is positioned at the concave part of the W-shaped lower sealing plate (5).

2. A laser welding system according to claim 1, characterized in that the bottom of the lower closing plate (5) is provided with support bars (18) arranged around the circumference of the lower closing plate (5).

3. A laser welding system according to claim 1, characterized in that the lower edge of the chamber opening (2) is level with the table platform (9).

4. A laser welding system according to any one of claims 1-3, wherein the control assembly comprises a plurality of cylinders, a control console and a plurality of groups of parallel sliding rails (19), the cylinders are connected with the control console and the sealing assemblies, the sliding rails (19) are arranged on the inner wall of the welding room (1) in a one-to-one correspondence manner, the sealing assemblies are in slidable limit connection with the sliding rails (19), and the cylinders drive the sealing assemblies to reciprocate on the sliding rails (19).