CN222679801U

CN222679801U - Automatic laser fusion welding device

Info

Publication number: CN222679801U
Application number: CN202420386234.3U
Authority: CN
Inventors: 苗龙; 蒋广迁; 魏玉鹏; 侯方轲; 施宁
Original assignee: Qingdao Sinnwakk Automotive Equipments Co ltd
Current assignee: Qingdao Sinnwakk Automotive Equipments Co ltd
Priority date: 2024-02-29
Filing date: 2024-02-29
Publication date: 2025-03-28
Anticipated expiration: 2034-02-28

Abstract

The utility model discloses an automatic laser melting welding device, which relates to the technical field of automobile production welding, and comprises a workbench, a welding mechanism arranged above the workbench and a workpiece positioning mechanism arranged below the workbench, wherein the welding mechanism comprises a laser welding machine, the laser welding machine is placed above the workbench through a supporting frame, and a laser power detection device is arranged on the supporting frame and the workbench bracket; the workpiece positioning mechanism comprises a longitudinal moving component and a workpiece clamping component, the longitudinal moving component comprises a workpiece lifting cylinder, and a positioning fixture for clamping the workpiece is arranged above the workpiece lifting cylinder; the workpiece clamping component is arranged above the positioning fixture and is slidably connected to the bottom of the workbench; the workpiece clamping component comprises a positioning plate, a clamping block is slidably connected to the bottom of the positioning plate, a longitudinally penetrating guide hole is opened in the clamping block, a guide shaft is arranged in the guide hole, and a spring is arranged in the clamping block; the power of laser irradiation is controlled by a power meter detection device, and then the melting depth is controlled to be a set value, so as to ensure the accuracy of processing control.

Description

Automatic laser fusion welding device

Technical Field

The utility model relates to the technical field of automobile production welding, in particular to an automatic laser fusion welding device.

Background

After the substrate and the shell of some electronic products applied to automobile equipment are assembled, a protective cover needs to be additionally arranged, the product with larger size can be fastened and arranged by screws, and the protective cover needs to be arranged in a welding and fusing mode for the smaller product. In the prior art, efficient and precise welding can be performed through a laser welding machine, but in a flow production line, if full-automatic production of workpieces is to be completed, other tools are also required to be matched with the laser welding machine. Most of the existing devices can only realize automatic completion of conveying and processing of a part of workpieces, but the working procedure of assembling the protective cover on the fusing station is not realized, and the defects of processing efficiency and precision exist.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides the automatic laser fusion welding device which can carry out full-automatic processing of fusion of workpieces, realize more accurate positioning and processing control, improve the processing precision and reduce the environmental pollution.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

An automatic laser fusion welding device comprises a workbench, a welding mechanism arranged above the workbench and a workpiece positioning mechanism arranged below the workbench, wherein the welding mechanism comprises a laser welding machine which is arranged above the workbench through a support frame, and the support frame and a workbench bracket are provided with a laser power detection device;

The workpiece pressing assembly comprises a positioning plate, the bottom of the positioning plate is connected with a pressing block in a sliding mode, a longitudinally penetrating guide hole is formed in the pressing block, a guide shaft is arranged in the guide hole, and a spring is arranged in the pressing block.

As a further implementation, the compression block assembly is completed to form a protective cover profile.

As a further implementation mode, the workpiece positioning assembly is of a drawer type structure, the bottom surface of the positioning plate is provided with a sliding groove, and the top of the compression block is in sliding connection with the sliding groove, so that the compression block is convenient to detach and replace.

As a further implementation mode, the compressing block is limited in the chute by the locating pin, and the locating pin longitudinally penetrates through the workbench, so that the operation is convenient.

As a further implementation mode, the top of the workpiece lifting cylinder is connected with a cylinder fixing plate, the cylinder fixing plate is provided with a plurality of upright posts to support a connecting plate at the top, a cylinder rod of the workpiece lifting cylinder sequentially penetrates through the cylinder fixing plate and the connecting plate upwards, the top of the cylinder rod is provided with a connecting block, and the positioning jig is fixedly connected with the connecting block.

As a further implementation mode, a pressure sensor is arranged between the positioning jig and the connecting block and used for detecting the compression pressure of the workpiece, so that the workpiece is in a set range, the workpiece is ensured to be compressed safely, and the machining precision is ensured.

As a further implementation mode, a smoke exhaust pipe is further arranged below the workbench, one end of the smoke exhaust pipe is connected with the dust collector, the opening of the other end of the smoke exhaust pipe is enlarged and is in a horn shape and positioned on one side of the positioning jig, and smoke dust generated by welding and melting can be absorbed, so that pollution is reduced.

The laser power detection device comprises a laser power meter, wherein the laser power meter is driven by a front cylinder and a rear cylinder of the power meter and can linearly move along a guide rail fixed on a workbench, and when the power is detected, the laser power meter moves to a set position below a laser welding machine, the laser welding machine irradiates laser, and the laser power meter detects.

As a further implementation manner, a contact sensor is fixed on the workbench and is used for measuring the height of the workpiece before and after fusion.

As a further implementation mode, the positioning jig is also provided with a photoelectric sensor for detecting whether a workpiece on the positioning jig exists or not and the state of the workpiece.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. According to the utility model, through the matching of the workpiece positioning mechanism and the welding mechanism, the full-automatic processing of the workpiece fusion can be realized, the processing efficiency is effectively improved, and meanwhile, the guide shaft is arranged in the compression block to be matched with the spring, so that the linear movement of the compression block can be ensured, the stress is uniform, and the precision of the workpiece fusion welding is improved.

2. According to the utility model, the power of laser irradiation is controlled by the power meter detection device, so that the melting depth is controlled to be a set value, and the processing accuracy is improved.

3. The utility model detects the height difference of the workpiece before and after fusing by the contact sensor, can timely detect whether the processing quality of the workpiece is qualified, ensures the quality of the workpiece flowing into the subsequent process, avoids the waste of working hours and improves the production efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a first overall structure diagram of the present utility model;

FIG. 2 shows the present utility model a second integral structure diagram;

FIG. 3 is a schematic view of a workpiece compression assembly of the present utility model;

FIG. 4 is a schematic diagram of the power meter of the present utility model with the front and rear cylinders in forward motion;

FIG. 5 is a front view of the lifting cylinder of the workpiece of the utility model when it is lifted;

FIG. 6 is a cross-sectional view at A in FIG. 5;

FIG. 7 is a schematic diagram of the structure of the positioning jig of the present utility model.

In the figure, 1, a workbench, 21, a laser welding machine, 22, a support frame, 23, a laser power meter, 24, a front cylinder and a rear cylinder of the power meter, 25, a guide rail, 3, a workpiece, 41, a workpiece lifting cylinder, 411, a cylinder fixing plate, 412, a stand column, 413, a connecting plate, 414, a connecting block, 42, a positioning jig, 421, a contact sensor, 43, a workpiece pressing component, 431, a positioning plate, 432, a chute, 433, a pressing block, 434, a guide hole, 435, a guide shaft, 436, a spring, 437, a positioning pin, 44, a pressure sensor, 45, a smoke exhaust pipe, 46, a first photoelectric sensor, 47, an optical fiber sensor, 48, a second photoelectric sensor, 49 and a proximity switch.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

Example 1

The embodiment provides an automatic laser fusion welding device, as shown in fig. 1-7, which comprises a workbench 1, a welding mechanism arranged above the workbench 1 and a workpiece positioning mechanism arranged below the workbench 1, wherein the welding mechanism comprises a laser welder 21, the laser welder 21 is arranged above the workbench 1 through a support frame 22, and the support frame 22 and a support frame of the workbench 1 are provided with laser power detection devices;

As shown in fig. 1-2, the workpiece positioning mechanism comprises a longitudinal moving assembly and a workpiece compressing assembly 43, the longitudinal moving assembly comprises a workpiece lifting cylinder 41, a positioning jig 42 for positioning a workpiece 3 is arranged above the workpiece lifting cylinder 41, the workpiece compressing assembly 43 is arranged above the positioning jig 42 and connected with the bottom of the workbench 1, the workpiece compressing assembly 43 comprises a positioning plate 431, the bottom of the positioning plate 431 is slidably connected with a compressing block 433, a longitudinally through guide hole 434 is formed in the compressing block 433, a guide shaft 435 is arranged in the guide hole 434, and a spring 436 is arranged in the compressing block 433.

Considering that the compressing block 433 is a consumable product, the workpiece positioning assembly is in a drawer type structure, as shown in fig. 2-3, the bottom surface of the positioning plate 431 is provided with a sliding groove 432, and the top of the compressing block 433 is slidably connected with the sliding groove 432, so that the compressing block 433 can be conveniently detached and replaced. A proximity switch 49 is provided below the table 1 for detecting whether the compact block 433 is reloaded in place when it is replaced.

In order to ensure that the workpiece is stably pressed by the pressing block 433 when being melted, the pressing block 433 is limited in the chute 432 by the positioning pin 437, the positioning pin 437 longitudinally penetrates through the workbench 1 when being installed, and the top is positioned above the workbench 1, so that the operation of workers is facilitated. A second photoelectric sensor 48 is provided on one side of the positioning pin 437, and is used for detecting whether the positioning pin 437 is present or not when the pressing block 433 is replaced, so as to ensure that the reloaded pressing block 433 is fixed and installed.

As shown in fig. 3, the center of the pressing block 433 forms a protective cover profiling, which can adapt to the workpiece to be assembled with an arc-shaped bulge on the top surface. Preferably, the compressing block 433 is formed by four rectangular blocks, two or three longitudinally penetrating guide holes 434 are respectively formed in the compressing block, a guide shaft 435 is arranged in the guide holes 434, and a spring 436 is respectively arranged in the compressing block to ensure that the compressing block moves linearly and is stressed uniformly.

Considering that the impact sound of the cylinder rod is larger when the cylinder falls back, buffering is needed to be added between the positioning jig and the workpiece lifting cylinder. As shown in fig. 7, the top of the workpiece lifting cylinder 41 is connected with a cylinder fixing plate 411, the cylinder fixing plate 411 is provided with a plurality of upright posts 412 for supporting a connecting plate 413 at the top, a cylinder rod of the workpiece lifting cylinder 41 sequentially passes through the cylinder fixing plate 411 and the connecting plate 413 upwards, the top of the cylinder rod is provided with a connecting block 414, the positioning jig 42 is fixedly connected with the connecting block 414, and impact sound can be reduced through adjusting bolts by taking connecting pieces such as the fixing plate, the upright posts, the connecting plate and the connecting block as buffering, and meanwhile, the stability of the positioning jig is improved.

A pressure sensor 44 is arranged between the positioning jig 42 and the connecting block 414 and is used for detecting the compression pressure of the workpiece so as to ensure that the workpiece is in a set range, and the workpiece is ensured to be compressed safely, thereby ensuring the processing precision.

The lower part of the workbench 1 is also provided with a smoke exhaust pipe 45, the smoke exhaust pipe 45 is fixedly connected with the bottom of the workbench 1, the installation height of the smoke exhaust pipe 45 depends on the processing position of a workpiece, one end of the smoke exhaust pipe 45 is connected with a dust collector, the opening of the other end of the smoke exhaust pipe is enlarged and is positioned at the rear side of the positioning jig 42 in a horn shape, and the smoke dust generated by welding fusion can be absorbed, so that the pollution is reduced.

The laser power detection device comprises a laser power meter 23, wherein the laser power meter 23 is driven by a front cylinder 24 and a rear cylinder 24 of the power meter and can linearly move along a guide rail 25 fixed on the workbench 1, and when the power is detected, the laser power meter 23 moves to a set position below the laser welder 21, the laser welder 21 irradiates laser, and the laser power meter 23 detects.

A contact sensor 421 is fixed to the table 1 for measuring the height of the workpiece before and after the workpiece is melted.

A photoelectric sensor 422 is further arranged above the positioning jig 42 and is used for detecting whether a workpiece on the positioning jig 42 exists or not and the state of the workpiece. In this embodiment, when the housing and the upper cover of the electronic product are assembled, the first sensor 46 and the optical fiber sensor 47 are included, the first photoelectric sensor 46 detects whether the workpiece on the positioning jig 42 is detected, and the optical fiber sensor 47 detects whether the workpiece on the positioning jig 42 is provided with the upper cover, so as to avoid that the workpiece flowing in from the previous procedure leaks and places the upper cover, so that only the housing is welded and fused, and if and only when the first photoelectric sensor and the optical fiber sensor both feed back the confirmation signal, the welding mechanism and the workpiece lifting cylinder 41 start to work.

The working principle of this embodiment is that, first, before the laser welder 21 works, it is necessary to detect whether the output power is the set power or not to control the melting depth. The power meter front and rear cylinders 24 advance, the laser welder 21 irradiates, the laser power meter 23 detects power, and after the completion, the power meter front and rear cylinders 24 retreat.

When the first photoelectric sensor 46 detects that the workpiece 3 is placed on the positioning jig 42 and the optical fiber sensor 47 detects the upper cover on the workpiece 3, the workpiece lifting cylinder 41 lifts with the positioning jig 42 to drive the upper cover on the workpiece 3 to lift to contact the pressing block 433 and be pressed, and the pressure sensor 44 simultaneously detects the pressure to ensure that the pressure reaches a set value, so that the workpiece 3 can be ensured to be pressed. After the pressing, the height of the contact sensor is measured and recorded, the laser welding machine 21 irradiates with laser, the melting position of the laser irradiation can be modified by the operation of a touch screen of the welding machine, smoke dust can be generated during melting, the dust collector starts to work, and the smoke dust is sucked through the smoke exhaust pipe 45 of the dust collector for dust removal. After the melting is completed, the workpiece lifting cylinder 41 continues to drive the positioning jig 42 to ascend, at this time, the contact sensor measures a height again, if the height difference accords with the set value, the workpiece is qualified, the workpiece lifting cylinder 41 descends, and the workpiece flows into the subsequent processing procedure.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The automatic laser fusion welding device is characterized by comprising a workbench, a welding mechanism arranged above the workbench and a workpiece positioning mechanism arranged below the workbench, wherein the welding mechanism comprises a laser welding machine which is arranged above the workbench through a support frame, and the support frame and the workbench support are provided with a laser power detection device;

The workpiece pressing assembly comprises a positioning plate, the bottom of the positioning plate is connected with a pressing block in a sliding mode, a longitudinally through guide hole is formed in the pressing block, a guide shaft is arranged in the guide hole, and a spring is arranged in the pressing block.

2. The automatic laser melting welding device according to claim 1, wherein the workpiece pressing assembly is of a drawer type structure, a chute is formed in the bottom surface of the positioning plate, and the top of the pressing block is slidably connected with the chute.

3. An automated laser welding apparatus according to claim 1, wherein the hold down blocks are retained in the chute by locating pins extending longitudinally through the table.

4. An automated laser welding apparatus according to claim 1, wherein the center of the compact block forms a protective cover profile.

5. The automatic laser melting welding device according to claim 1, wherein the top of the workpiece lifting cylinder is connected with a cylinder fixing plate, a plurality of upright posts are arranged on the cylinder fixing plate to support a connecting plate at the top, a cylinder rod of the workpiece lifting cylinder sequentially penetrates through the cylinder fixing plate and the connecting plate upwards, a connecting block is arranged at the top of the cylinder rod, and the positioning jig is fixedly connected with the connecting block.

6. The automated laser welding apparatus of claim 5, wherein a pressure sensor is disposed between the positioning jig and the connection block.

7. The automatic laser welding device according to claim 1, wherein a smoke exhaust pipe is further arranged below the workbench, one end of the smoke exhaust pipe is connected with the dust collector, and an opening at the other end of the smoke exhaust pipe is enlarged and is positioned on one side of the positioning jig in a horn shape, so that smoke dust generated by welding is absorbed.

8. An automated laser welding apparatus according to claim 1, wherein the laser power detection means comprises a laser power meter driven by a power meter front and rear cylinder and linearly movable along a guide rail fixed to the table.

9. An automated laser welding apparatus according to claim 1, wherein a contact sensor is mounted on the table.

10. The automatic laser welding device according to claim 1, wherein the positioning jig is further provided with a photoelectric sensor.