CN214291392U

CN214291392U - Assembling device for metal sheet and protective shell of thermal protector

Info

Publication number: CN214291392U
Application number: CN202022907181.XU
Authority: CN
Inventors: 何春武; 梁伟枝
Original assignee: Zhongshan Chuancheng Precision Electronics Co ltd
Current assignee: Zhongshan Chuancheng Precision Electronics Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-09-28
Anticipated expiration: 2030-12-07

Abstract

The utility model provides an assembling device of a metal sheet and a protective shell of a thermal protector, which comprises a workbench, a pressing device, an assembling die, a laser welding platform and a laser welding device; the pressing device, the laser welding platform and the laser welding device are respectively arranged on the workbench; the assembling die is arranged at the output end position of the pressing device, and the pressing device drives the assembling die to open and close the die; the laser welding platform is arranged on one side of the output end of the assembling die; the laser generator is positioned right above the laser welding platform. The assembly device utilizes a laser welding technology to replace an arc welding mode, so that the problem that an arc generates craters on a metal sheet and a protective shell and the performance of a product is influenced is avoided; the influence on the metal sheet caused by high temperature during welding is reduced; and the laser welding speed is high, and the laser welding device is more suitable for batch processing production of the thermal protectors.

Description

Assembling device for metal sheet and protective shell of thermal protector

Technical Field

The utility model relates to a hot protector processingequipment technical field especially relates to an assembly quality of hot protector sheetmetal and protective housing.

Background

The thermal protector is formed by combining two different alloys, generates heat after current flows, and the alloys tend to bend in one direction due to different thermal expansion coefficients of the two different alloys. When the thermal protector is connected to an electric appliance and works normally, the bimetallic strip is in a free state, the contact is in a closed/open state, when the temperature rises to an action temperature value, the bimetallic element is heated to generate internal stress to act rapidly, and the contact is opened/closed to cut off/connect a circuit, so that the thermal protection effect is achieved. When the temperature is reduced to the set temperature, the contact is automatically closed/opened, and the normal working state is recovered.

In current hot protector preparation technology, generally use the mode of arc welding to assemble sheetmetal and protective housing, the mode of arc welding is: the metal sheet is used as one pole, the welding rod is used as the other pole, when the metal sheet is close to the welding rod, an electric arc is generated, the welding rod and the metal sheet are mutually melted by heat generated by electric arc discharge, and a melt which is in contact with the protective shell is formed; after the melt has condensed, the metal sheet is joined to the protective shell.

However, the welding rod is lost in the welding process, so that the welding precision is reduced, and the welding effect in the same batch is obviously different. Moreover, the arc welding mode can form ablation black spots on the surface of the bimetallic strip, and even the problem that welding slag splashes or current breaks down the bimetallic strip can occur, so that the assembly precision of the metal strip and the protective shell is reduced; in addition, the instantaneous high temperature generated in the electric welding process may interfere with the temperature sensing deformation capability of the bimetallic strip, and the performance of the product is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equipment of thermal protector sheetmetal and protective housing.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an assembling device of a metal sheet and a protective shell of a thermal protector, which comprises a workbench, a pressing device, an assembling die, a laser welding platform and a laser welding device;

the pressing device, the laser welding platform and the laser welding device are respectively arranged on the workbench; the assembling die is arranged at the output end position of the pressing device, and the pressing device drives the assembling die to open and close the die;

the laser welding platform is arranged on one side of the output end of the assembling die;

the laser welding device comprises a device bracket and a laser generator; the lower end of the device bracket is connected with the workbench, and the upper end of the device bracket is connected with the laser generator; the laser generator is located directly above the laser welding platform.

The device support is provided with a lifting mechanism, and the laser generator is driven by the lifting mechanism to move up and down relative to the laser welding platform.

In the assembling device of the thermal protector metal sheet and the protective shell, the assembling mold further includes: the stamping die comprises an upper die plate, a lower die plate, a stamping die core, a positioning column and a connecting stamping device;

the upper template is movably connected to the lower template; the stamping mold core is arranged at the upper end of the lower template; the positioning columns are arranged on the lower plate surface of the upper template and can vertically extend into the stamping die core; the connecting punch is arranged on the lower plate surface of the upper template; a passive raised head is arranged on the lower bottom surface of the stamping mold core, and an active raised head is arranged on the upper top surface of the connecting stamping device; when the upper template is pressed towards the lower template, the driving raised head is vertically pressed on the driven raised head;

the stamping die core is provided with a metal sheet feeding channel and a protective shell feeding channel which are in a right-to-up position; the positioning column can vertically extend into the metal sheet feeding channel and/or the protective shell feeding channel.

The assembling device of the metal sheet of the thermal protector and the protective shell further comprises an illuminating assembly, wherein the illuminating assembly comprises a lamp holder and an illuminating lamp; one end of the lamp holder is arranged on the workbench, and the other end of the lamp holder is electrically connected with the illuminating lamp; the lighting lamp illuminates the area between the upper template and the lower template.

In the assembling device of the thermal protector metal sheet and the protective shell, the positioning column includes: sheet metal positioning columns and protective shell positioning columns;

when the pressing device presses the upper template downwards against the lower template, the metal sheet positioning column can vertically extend into the metal sheet feeding channel; the protective shell positioning column can vertically extend into the protective shell feeding channel.

The assembling device of the metal sheet of the thermal protector and the protective shell further comprises a feeding assembly; the feeding assembly comprises a feeding bracket and a feeding rotating wheel; the feeding rotating wheel is rotatably connected with the feeding bracket;

the feeding assembly is divided into a metal sheet feeding assembly and a protective shell feeding assembly; a feeding rotating wheel of the metal sheet feeding assembly is wound with a metal sheet material belt; and a protective shell material belt is wound on a feeding rotating wheel of the protective shell feeding assembly.

In the assembling device of the metal sheet of the thermal protector and the protective shell, the feeding assembly further comprises a feeding motor and a feeding pedal;

the feeding motor is arranged on the feeding support, the output end of the feeding motor is connected with the feeding rotating wheel, and the feeding pedal is arranged on the feeding support in a swinging manner; the feeding pedal is electrically connected with the feeding motor.

The assembling device of the metal sheet of the thermal protector and the protective shell further comprises a workpiece moving assembly; the workpiece moving assembly includes: the device comprises a workpiece driver, a feeding seat piece and a feeding driving piece;

the workpiece driver is arranged below the stamping die core, and the output end of the workpiece driver can horizontally and telescopically contact with the feeding seat piece, so that the feeding seat piece can horizontally move below the stamping die core; a horizontal driving track is arranged at the vertical telescopic position of the feeding driving part of the stamping die core; the feeding driving part can be vertically and telescopically arranged in the driving hole of the feeding seat part and can vertically extend out of and pass through the driving track.

The assembling device of the metal sheet of the thermal protector and the protective shell also comprises a welding quality detection device;

the welding quality detection device is arranged on the workbench and is positioned above the output end of the laser welding platform; the welding quality detection device is electrically connected with the workpiece moving assembly.

The assembling device of the metal sheet of the thermal protector and the protective shell also comprises a laser positioning device; the laser positioning device is arranged in the stamping die core and is electrically connected with the workpiece moving assembly; the laser positioning device comprises: the device comprises a first laser emitting device, a second laser emitting device, a first laser detecting device and a second laser detecting device;

the first laser emitting device and the first laser detecting device are respectively arranged at the upper position and the lower position of the metal sheet feeding channel;

the second laser emitting device and the second laser detecting device are respectively arranged at the upper position and the lower position of the protective shell feeding channel.

Drawings

The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.

FIG. 1 is a front view of an assembly device according to one embodiment of the present invention;

fig. 2 is a schematic structural diagram of an assembly device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an assembly mold according to an embodiment of the present invention;

FIG. 4 is a schematic sectional view of the assembled mold shown in FIG. 3;

FIG. 5 is an exploded view of the assembled mold of FIG. 3;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a schematic illustration of the metal sheet and protective shell in an unassembled configuration according to one embodiment of the present invention;

fig. 8 is a schematic diagram of a laser positioning device according to an embodiment of the present invention;

fig. 9 is a schematic view of a press-fit mold core with a workpiece moving assembly according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a feeder shoe according to an embodiment of the present invention.

Wherein: the device comprises a workbench 1, a pressing device 2, an assembling die 3, a laser welding platform 4, a laser welding device 5, an illuminating assembly 6, a feeding assembly 7, a workpiece moving assembly 8, a welding quality detection device 9 and a laser positioning device 10;

a metal sheet material belt 11 and a protective shell material belt 12; the metal sheet 111, the protective shell 121 and the metal sheet riveting hole 1111; riveting raised head 1211 and protective shell positioning hole 1212;

the stamping die comprises an upper die plate 31, a lower die plate 32, a stamping die core 33, a positioning column 34, a connecting stamping device 35 and a guide column 36;

a sheet metal feeding channel 331, a protective shell feeding channel 332, a passive raised head 333, an active raised head 351, a sheet metal positioning column 341 and a protective shell positioning column 342;

a device bracket 51, a laser generator 52;

lamp holders 61, illumination lamps 62;

a sheet metal feeding component 7a and a protective shell feeding component 7 b; a feeding bracket 71, a feeding rotating wheel 72, a feeding motor 73 and a feeding pedal 74;

a workpiece driver 81, a feeding seat member 82 and a feeding driving member 83;

a first laser emitting device 101, a second laser emitting device 102, a first laser detecting device 103, and a second laser detecting device 104.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present invention provides an assembly device of a metal sheet and a protective shell of a thermal protector, which includes a workbench 1, a pressing device 2, an assembly mold 3, a laser welding platform 4 and a laser welding device 5;

the pressing device 2, the laser welding platform 4 and the laser welding device 5 are respectively arranged on the workbench 1; the assembling die 3 is arranged at the output end position of the pressing device 2, and the pressing device 2 drives the assembling die 3 to open and close the die;

the laser welding platform 4 is arranged on one side of the output end of the assembling die 3;

the laser welding device 5 comprises a device bracket 51 and a laser generator 52; the lower end of the device bracket 51 is connected with the workbench 1, and the upper end of the device bracket 51 is connected with the laser generator 52; the laser generator 52 is located directly above the laser welding platform 4.

Specifically, the assembling device is used for assembling the metal sheet 111 and the protective shell 121 through pressing, so that full automation is provided for production of the thermal protector, and the effect of batch processing production is achieved. In addition, this assembly device utilizes laser welding technique, and is as an organic whole with sheetmetal 111 and protective housing 121 welding, has replaced the mode of arc welding, avoids the electric arc to produce the problem of crater on sheetmetal 111 and protective housing 121, influences the performance of product. In contrast, the laser welding technology has a small welding area and high precision, ensures the consistency of the welding effect of the metal sheet 111 of the thermal protector and the protective shell 121, and reduces the influence on the metal sheet 111 caused by high temperature during welding; and the laser welding speed is high, and the laser welding device is more suitable for batch processing production of the thermal protectors.

Workstation 1 is connected with external power source, and compression fittings 2, assembly jig 3 and laser welding device 5 and workstation 1 electric connection are by workstation 1 for compression fittings 2, assembly jig 3 and laser welding device 5 and workstation 1 provide power.

Specifically, the device holder 51 is provided with a lifting mechanism by which the laser generator 52 is driven to move up and down with respect to the laser welding platform 4. The laser generator 52 is fixed at the upper end of the device bracket 51, and the lifting mechanism is lifted/lowered according to the size, thickness and other parameters of the metal sheet 111 and the protective shell 121, so that the distance between the laser generator 52 and the laser welding platform 4 is prolonged/shortened, and the laser welding effect is adjusted.

Referring to fig. 3, fig. 4 and fig. 5, the assembly mold 3 further includes: the stamping die comprises an upper die plate 31, a lower die plate 32, a stamping die core 33, a positioning column 34 and a connecting stamping device 35;

the upper template 31 is movably connected to the lower template 32; the stamping die core 33 is arranged at the upper end of the lower template 32; the positioning columns 34 are arranged on the lower plate surface of the upper template 31 and can vertically extend into the stamping die core 33; the connecting punch 35 is arranged on the lower plate surface of the upper template 31; a passive raised head 333 is arranged on the lower bottom surface of the stamping mold core 33, and an active raised head 351 is arranged on the upper top surface of the connecting stamping device 35; when the upper template 31 is pressed towards the lower template 32, the driving boss 351 is vertically pressed on the driven boss 333;

the stamping die core 33 is provided with a sheet metal feeding channel 331 and a protective shell feeding channel 332 which are in a right-to-up position; the positioning posts 34 may vertically extend into the sheet metal feed channel 331 and/or the protective shell feed channel 332.

Referring to fig. 4 to 7, further, the sheet metal feeding channel 331 is located above the protective shell feeding channel 332; the metal sheet material belt 11 enters the stamping die core 33 from the metal sheet feeding channel 331, the protective shell material belt 12 enters the stamping die core 33 from the protective shell feeding channel 332, the metal sheet feeding channel 331 and the protective shell feeding channel 332 are located on the same vertical plane, in the two material belts, each metal sheet 111 corresponds to the vertical position of one protective shell 121, the metal sheet 111 is right opposite to the inner shell position of the protective shell 121, and after the metal sheet material belt 11 and the protective shell material belt 12 move for the same unit each time, the metal sheets 111 and the protective shells 121 at the upper and lower positions are still in one-to-one correspondence; when the upper die plate 31 presses the stamping die core 33 towards the lower die plate 32, the metal sheet 111 located in the metal sheet feeding channel 331 and the protective shell 121 located in the protective shell feeding channel 332 are sequentially positioned by the positioning columns 34, wherein a part of the positioning columns 34 pass through the metal sheet feeding channel 331 and pass through the originally designed metal sheet riveting hole 1111 of the metal sheet 111, so that the metal sheet 111 is positioned; similarly, a part of the positioning posts 34 can position the protective casing 121, and the positioning posts 34 pass through the positioning holes of the protective casing 121, so that the riveting holes 1111 are aligned with the riveting protrusions 1211 arranged on the protective casing 121; after the positioning step is completed, after the metal sheet 111 and the protective shell 121 move to the designated stations, the metal sheet 111 and the protective shell 121 move to the position between the connecting punch 35 and the passive raised head 333, when the upper template 31 presses the punching mold core 33 towards the lower template 32, the connecting punch 35 presses the metal sheet 111 and the protective shell 121 towards the passive raised head 333, so that the riveting raised head 1211 of the metal sheet 111 of the protective shell 121 is riveted with the metal sheet riveting hole 1111, and the metal sheet 111 is fixed in the protective shell 121; at this time, the metal sheet 111 of the metal sheet feeding channel 331 behind the metal sheet feeding channel and the protective casing 121 located in the protective casing feeding channel 332 are sequentially positioned by the positioning columns 34, and the process is continuously repeated;

the two material belts are drawn by different processing workpieces at the rear end, so that the metal sheet material belt 11 and the protective shell material belt 12 sequentially pass through the assembling die 3 for positioning and riveting; namely, when the upper template 31 is pressed on the lower template 32, one side is positioned, and the other side is riveted; in an embodiment, the protective case 121 has two riveting protrusions 1211, and correspondingly, the metal sheet 111 has two metal sheet riveting holes 1111, and the protective case 121 and the metal sheet 111 are riveted by two riveting points.

The protective shell material belt 12 riveted with the metal sheet material belt 11 is dragged by a processing workpiece at the rear end to enter the laser welding platform 4; the laser generator 52 emits laser at regular time, when the protective shell material belt 12 riveted with the metal sheet material belt 11 passes through the laser generator 52, the laser emitted by the laser generator 52 generates high temperature, and the irradiated part of the surface laser of the metal sheet 111 is melted due to instant high temperature and is contacted with the protective shell 121; after the laser-irradiated portion of the surface of the metal sheet 111 is cooled, the metal sheet 111 is connected to the protective case 121.

The active raised head 351 and the passive raised head 333 can realize the function of improving the fixing force under the interaction; that is, the driving nib 351 is used to positively press the sheet metal staking hole 1111 against the staking nib 1211 against the sheet metal 111; the interior of the protective casing 121 is provided with a riveting nose 1211, and the exterior of the casing is provided with a notch in the riveting nose 1211, the notch being aligned with the passive nose 333; therefore, under the interaction of the driving boss 351 and the driven boss 333, the metal sheet 111 can be tightly pressed against the protective case 121, and the fixing force of the two is improved. Preferably, the assembly mold 3 further comprises: the guide posts 36, the upper template 31 can vertically move on the lower template 32 through the guide posts 36, and the guide posts 36 can realize the guiding function.

Furthermore, the assembly device of the thermal protector metal sheet and the protective shell further comprises an illumination assembly 6, wherein the illumination assembly 6 comprises a lamp holder 61 and an illumination lamp 62; one end of the lamp holder 61 is installed on the workbench 1, and the other end is electrically connected with the illuminating lamp 62; the illumination lamp 62 illuminates the area between the upper and

lower templates

31 and 32.

The lamp holders 61 and the illumination lamps 62 are commercially available. In the actual production, after the metal sheet material belt 11 and the protective shell material belt 12 are consumed, a new metal sheet material belt 11 and a new protective shell material belt 12 need to be connected; when the metal sheet material belt 11 and the protective shell material belt 12 that continue, the producer need readjust the position of metal sheet material belt 11 and protective shell material belt 12, ensures that the position of metal sheet material belt 11 and protective shell material belt 12 corresponds, but the distance between cope match-plate pattern 31 and the lower bolster 32 is less, and the light source is not enough, and the producer is difficult to see the position of metal sheet material belt 11 and protective shell material belt 12 clearly. Thus, the illumination lamps 62 are provided to provide a light source and the area between the upper and lower dies 31, 32 is sufficiently bright to allow the manufacturer to adjust the position of the strip of sheet metal 11 and the strip of protective casing 12.

Referring to fig. 4 and 5, specifically, the positioning pillar 34 includes: sheet metal positioning posts 341 and protective case positioning posts 342;

when the pressing device 2 presses the upper mold plate 31 downward against the lower mold plate 32, the metal sheet positioning column 341 may vertically extend into the metal sheet feeding passage 331; the protective shell positioning columns 342 can vertically extend into the protective shell feeding channel 332.

The number of the positioning columns 34 is considered according to the sizes of the upper template 31, the lower template 32 and the stamping die core 33 and the size of a single workpiece in the material belt, and the number of the positioning columns 34 can be designed to be 1 or more; considered in this application as 1, which is located close to the connecting punch 35; meanwhile, in the stamping die core 33, after the metal sheet 111 and the protective shell 121 are positioned, the stamping die core 33 is not blocked between the upper position and the lower position, and can be directly pressed to the passive boss 333 by the connecting stamping device 35.

The positioning columns 34 can be subdivided into sheet metal positioning columns 341 and protective shell positioning columns 342; the sheet metal positioning column 341 is configured to position the sheet metal riveting hole 1111 of the sheet metal 111; the protective shell positioning column 342 is used for passing through a protective shell positioning hole 1212 of the protective shell 121 and positioning the protective shell 121, so that the riveting boss 1211 of the protective shell 121 is aligned with the sheet metal riveting hole 1111; the riveting accuracy of the two can be effectively ensured.

Referring to fig. 2, specifically, the assembling device of the thermal protector metal sheet and the protective shell further includes a feeding assembly 7; the feeding assembly 7 comprises a feeding bracket 71 and a feeding rotating wheel 72; the feeding rotating wheel 72 is rotatably connected to the feeding bracket 71;

the feeding assembly 7 is divided into a metal sheet feeding assembly 7a and a protective shell feeding assembly 7 b; a feeding rotating wheel 72 of the metal sheet feeding component 7a winds the metal sheet material belt 11; the protective shell material belt 12 is wound on the feeding rotating wheel 72 of the protective shell feeding assembly 7 b.

The assembly center uses a feed wheel 72 for feeding. The feeding components are divided into two types according to the types of conveying raw materials, one type is a metal sheet feeding component 7a for conveying a metal sheet 111, and the other type is a protective shell feeding component 7b for conveying a protective shell 121; under the traction action of the rear end processing device, the feeding rotating wheel 72 can rotate and unreel the metal sheet 111 and the protective shell 121 respectively, so that the effect of continuous feeding is achieved.

Specifically, the feeding assembly 7 further comprises a feeding motor 73 and a feeding pedal 74; the feeding motor 73 is arranged on the feeding bracket 71, the output end of the feeding motor 73 is connected with the feeding rotating wheel 72, and the feeding pedal 74 is arranged on the feeding bracket 71 in a swinging manner; the feed pedal 74 is electrically connected to the feed motor 73.

The sheet metal strip 11 contacts the feeding pedal 74 of the sheet metal feeding assembly 7a and is guided to the sheet metal feeding channel 331;

the protective shell material belt 12 contacts the feeding pedal 74 of the protective shell feeding assembly 7b and leads to the protective shell feeding channel 332.

Wherein the metal sheet material belt 11 and the protective shell material belt 12 are respectively contacted with the feeding pedal 74; the feeding principle of the metal sheet feeding assembly 7a and the protective shell feeding assembly 7b is the same, and for convenience of description, the metal sheet material belt 11 and the protective shell material belt 12 are collectively referred to as material belts.

When the material belt is in a loose state, the material belt is positioned below the feeding pedal, and under the condition that the feeding pedal 74 is not triggered, the feeding motor 73 stops, and the feeding rotating wheel 72 temporarily stops unwinding the material belt; the material belt is gradually tightened along with the continuous assembly of the pressing device and the laser welding device on the material belt and the forward movement of the free end of the material belt, and when the material belt is tightened to a certain degree, the material belt can touch the feeding pedal 74 under the action of tension and the feeding pedal swings upwards; when the feeding pedal 74 swings, the feeding pedal is connected with the power supply of the feeding motor 73, so that the feeding motor 73 is started; the output end of the feeding motor 73 rotates and drives the feeding rotating wheel 72 to rotate, the feeding rotating wheel 72 respectively unreels the material strips, in the process, the tension of the material strips gradually decreases until the material strips can not enable the feeding pedals 74 to swing, the feeding pedals 74 cut off the power supply of the feeding motor 73, and the feeding rotating wheel 72 temporarily stops unreeling the material strips; until the tension at the feed pedal 74 increases as the sheet metal strip 11 and the protective shell strip 12 are retightened, i.e., the feed motor 73 is restarted; the effect of automatic feeding is achieved.

Referring to fig. 9 and 10, in particular, the assembly device of the thermal protector metal sheet and the protective shell further includes a workpiece moving assembly 8; the workpiece moving assembly 8 includes: a workpiece driver 81, a feeding seat member 82 and a feeding driving member 83;

the workpiece driver 81 is arranged below the stamping die core 33, and the output end of the workpiece driver can horizontally and telescopically contact with the feeding seat part 82, so that the feeding seat part 82 can horizontally move below the stamping die core 33; the stamping die core 33 is provided with a horizontal driving track at the vertical telescopic position of the feeding driving part 83; the feeding driving member 83 is vertically and telescopically arranged in the driving hole of the feeding base member 82, and can vertically extend out and pass through the driving track.

The workpiece moving assembly 8 is used for driving the metal sheet 111 and the protective shell 121 of the stamping die core 33 to move; specifically, when the upper mold plate 31 is far away from the lower mold plate 32, that is, in the mold opening state, the feeding driving member 83 in the feeding seat member 82 vertically extends out of the driving hole and passes through the driving rail, and the feeding driving member 83 passes through the bracket positioning hole (the hole corresponding to the metal sheet 111) of the protective housing 121; the workpiece driver 81 pushes out the feeding seat 82 horizontally, the belt feeding driving piece 83 moves horizontally, under the action of the feeding driving piece 83, the protective shell material belt 12 moves forward one unit, and the feeding driving piece 83 resets into the driving hole; the upper template 31, the lower template 32 and the positioning columns 34 are used for positioning, and corresponding rear processing steps are sequentially carried out.

The workpiece driver 81 here is a known horizontal driving structure such as an air cylinder, a motor-screw structure, a motor-gear structure, and the like. The feeding driving member 83 is a vertical insertion pin, and a retractable driving structure is provided below the vertical insertion pin, the driving structure is also a known vertical driving structure, and an air hole can be provided at the lower template 32, a horizontal plate is provided below the insertion pin, the air hole is communicated with the space where the horizontal plate is located, and the air hole is blown to lift the horizontal plate, so that the water insertion pin can be retracted into the driving hole.

Referring to fig. 1, preferably, the assembly device of the thermal protector metal sheet and the protective shell further includes a welding quality detection device 9; the welding quality detection device 9 is arranged on the workbench 1 and is positioned above the output end of the laser welding platform 4; the welding quality detection device 9 is electrically connected with the workpiece moving assembly 8.

After the welding, welding quality detection device 9 can detect just welded position again, whether welds and targets in place, whether welds the back and influences the surface, if unqualified promptly can record and remove subassembly 8 through signal of telecommunication transmission to the work piece, work piece removes subassembly 8 and stops propelling movement protective housing material area 12 and sheetmetal material area 11, treats production personnel further processing.

Referring to fig. 8, specifically, the assembly device of the thermal protector metal sheet and the protective shell further includes a laser positioning device 10; the laser positioning device 10 is arranged in the stamping die core 33 and is electrically connected with the workpiece moving component 8; the laser positioning device 10 includes: a first laser emitting device 101, a second laser emitting device 102, a first laser detecting device 103 and a second laser detecting device 104;

the first laser emitting device 101 and the first laser detecting device 103 are respectively arranged at the upper and lower positions of the metal sheet feeding channel 331;

the second laser emitting device 102 and the second laser detecting device 104 are respectively disposed at upper and lower positions of the protective shell feeding channel 332.

The laser emitting device is divided into a first laser emitting device 101 and a second laser emitting device 102 according to the set position, and the laser positioning device 10 is divided into a first laser detecting device 103 and a second laser detecting device 104 according to the set position.

The laser emitting device and the laser detecting device are matched with each other, so that the positioning effect of the metal sheet 111 and the protective shell 121 can be improved; the laser positioning device 10 can be disposed near the positioning post 34, or disposed at a position connected to the punch 35; either the laser emitting device or the laser detecting device is arranged at the upper end in the metal sheet feeding channel 331 and/or the protective shell feeding channel 332, and the other is arranged at the lower end; the metal sheet 111 passes through the position before the laser emitting device and the laser detecting device, and if the laser lines emitted by the laser emitting device at the upper and lower positions of the metal sheet riveting hole 1111 can be received by the laser detecting device, the metal sheet is qualified; otherwise, the workpiece moving assembly 8 is not qualified, and the workpiece moving assembly slightly moves forwards to adjust the metal sheet material belt 11 or the protective shell material belt 12 until the laser emitted by the laser emitting device is not blocked and is received by the laser detecting device, so that the pressing precision is improved.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides an assembly device of thermal protector sheetmetal and protective housing which characterized in that: the device comprises a workbench, a pressing device, an assembling die, a laser welding platform and a laser welding device;

2. The assembly of a thermal protector sheet metal and protective case of claim 1, wherein: the device support is provided with a lifting mechanism, and the laser generator is driven by the lifting mechanism to move up and down relative to the laser welding platform.

3. The assembly of a thermal protector sheet metal and protective case of claim 1, wherein: the assembling die further includes: the stamping die comprises an upper die plate, a lower die plate, a stamping die core, a positioning column and a connecting stamping device;

4. A device for assembling a thermal protector sheet metal with a protective case according to claim 3, wherein: the lighting assembly comprises a lamp holder and a lighting lamp; one end of the lamp holder is arranged on the workbench, and the other end of the lamp holder is electrically connected with the illuminating lamp; the lighting lamp illuminates the area between the upper template and the lower template.

5. A device for assembling a thermal protector sheet metal with a protective case according to claim 3, wherein: the reference column includes: sheet metal positioning columns and protective shell positioning columns;

6. The assembly of a thermal protector sheet metal and protective case of claim 1, wherein: the device also comprises a feeding component; the feeding assembly comprises a feeding bracket and a feeding rotating wheel; the feeding rotating wheel is rotatably connected with the feeding bracket;

7. The assembly of a thermal protector sheet metal and protective case of claim 6, wherein: the feeding assembly also comprises a feeding motor and a feeding pedal;

8. A device for assembling a thermal protector sheet metal with a protective case according to claim 3, wherein: the workpiece moving assembly is further included; the workpiece moving assembly includes: the device comprises a workpiece driver, a feeding seat piece and a feeding driving piece;

9. The assembly of a thermal protector sheet metal and protective case of claim 8, wherein: the welding quality detection device is also included;

10. The assembly of a thermal protector sheet metal and protective case of claim 8, wherein: the device also comprises a laser positioning device; the laser positioning device is arranged in the stamping die core and is electrically connected with the workpiece moving assembly; the laser positioning device comprises: the device comprises a first laser emitting device, a second laser emitting device, a first laser detecting device and a second laser detecting device;