CN115338538A - Automatic protection device and method for high-speed switching of precision welding fixture - Google Patents
Automatic protection device and method for high-speed switching of precision welding fixture Download PDFInfo
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- CN115338538A CN115338538A CN202211276196.8A CN202211276196A CN115338538A CN 115338538 A CN115338538 A CN 115338538A CN 202211276196 A CN202211276196 A CN 202211276196A CN 115338538 A CN115338538 A CN 115338538A
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- 238000003466 welding Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 36
- 238000009434 installation Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of laser welding, in particular to an automatic protection device and a method for high-speed switching of a precision welding fixture, which comprises a closed high-speed annular guide rail line, wherein a welding station and a high-speed switching station are arranged along the high-speed annular guide rail line; the high-speed platforms move along the high-speed annular guide rail line, clamp fixing clamps are arranged on the high-speed platforms, inclined holes are formed in the clamp fixing clamps, and the clamp fixing clamps are used for fixing welding clamps; the high-precision follow-up bearing assembly is arranged at one arc end of the high-speed annular guide rail; the grabbing module is arranged on the portal frame, and the portal frame is also provided with a transverse moving module and a vertical moving module which drive the grabbing module to move; the camera is arranged on the bracket through the adjustable platform and is used for judging whether the product is neglected to be installed or deviated in the welding fixture; visual detection of the welding fixture is achieved through the camera, the detection result of the welding fixture is given, and the welding fixture which does not pass through detection is replaced through the high-speed switching work station.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to an automatic protection device and method for high-speed switching of a precision welding fixture.
Background
The welding between metal parts is usually completed by adopting a laser welding technology, when the metal parts are composed of a plurality of parts and have higher precision requirement, a special welding clamp needs to be manufactured to ensure the precision, and the welding clamp is inevitably damaged in the using and carrying processes.
For example, in the laser welding process of a plurality of metal parts, the product is small, for example, the thickness is 0.25MM, welding points among the metal parts are dense, the distance between the welding points and the edge of the metal part is 0.3MM, and the precision requirement is extremely high. In normal production of equipment, because various reasons cause the product to put not in place, leak and put and the product lacks the material, lead to leaking in welding jig and put or lack the material for laser welding directly welds the welding jig surface, causes welding jig's damage, and has influenced follow-up product welded precision.
Meanwhile, in the automatic production of the welding fixture, 2S finishes one production beat, and when the situation that the normal production of the equipment is not influenced and a product is not placed or lost on the precision welding fixture is detected, how to take down the abnormal fixture and switch the standby fixture at a high speed is realized, the equipment is not stopped in operation, and the output of the lifting equipment is very important.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an automatic protection device and method for high-speed switching of a precision welding clamp, so as to realize detection of the welding clamp.
In order to achieve the purpose, the automatic protection device for high-speed switching of the precision welding fixture comprises a closed high-speed annular guide rail line, wherein a welding station and a high-speed switching station are arranged along the high-speed annular guide rail line; the high-speed platforms move along the high-speed annular guide rail line, the high-speed platforms are provided with clamp fixing clamps, inclined holes are formed in the clamp fixing clamps, and the clamp fixing clamps are used for fixing welding clamps; the high-precision follow-up bearing assembly is arranged at one arc end of the high-speed annular guide rail; the grabbing module is arranged on the portal frame, and the portal frame is also provided with a transverse moving module and a vertical moving module which drive the grabbing module to move; the camera is arranged on the bracket through the adjustable platform and is used for judging whether the product is neglected to be installed or deviated in the welding fixture; the welding station comprises a laser lens and a welding mechanism; the high-speed switching station comprises an opening mechanism, wherein a transverse motion module and a vertical motion module on a portal frame drive the opening mechanism to be inserted into a clamp fixing clamp, so that the clamp fixing clamp is separated from a welding clamp.
The invention also comprises the following preferable technical scheme:
1. the adjustable platform consists of a fixed block and an installation block, the fixed block is installed on the support, the camera is installed on the installation block, and the fixed block is connected with the installation block through a longitudinal adjusting mechanism and a transverse adjusting mechanism.
2. The longitudinal adjusting mechanism and the transverse adjusting mechanism are both composed of a sliding block and a screw rod and comprise a longitudinal adjusting knob and a transverse adjusting knob, the adjusting knob is provided with threads meshed with the screw rod, the adjusting knob is rotated to control the screw rod to stretch and retract, and then the sliding block is controlled to move, so that transverse adjustment and longitudinal adjustment are achieved.
3. The high-speed platform is provided with a positioning needle, and the welding fixture is provided with a positioning hole corresponding to the positioning needle.
4. The welding fixture is provided with a positioning step, and the welding fixture is relatively provided with a fixed push block and a side push block for positioning a product.
5. The clamp material feeding assembly line and the clamp material discharging assembly line are arranged on two sides of the high-speed annular guide line along the transverse direction.
Further, the use method of the automatic protection device for high-speed switching of the precision welding jig comprises the following steps:
s1, arranging a product on a welding fixture, and driving the welding fixture to move along a high-speed annular track line by a high-speed platform;
s2, judging whether the product is neglected to be installed or is deviated in the welding fixture by the camera;
s21, no missing installation or offset exists, the high-speed platform continues to drive the welding fixture to move to the welding work station, and the welding mechanism welds the product
S22, neglected loading or deviation exists, the high-speed platform drives the abnormal fixture to the high-speed switching work station, the clamp opening mechanism enables the abnormal fixture to be separated from the fixture fixing clamp, the first grabbing module takes down the abnormal fixture to be conveyed to the fixture blanking assembly line, and the second grabbing module conveys the standby welding fixture to the high-speed platform from the fixture feeding assembly line.
Compared with the prior art, the invention has the advantages that: realize the visual detection to welding jig through the camera, and give the testing result to welding jig, change the welding jig who detects not passing through high-speed switching work station, prevent to carry out the laser welding operation to the welding jig who has quality defect, lead to welding jig's further harm and influence the welding quality of product, and welding jig's detection device integration sets up on a complete endless conveyor belt, it is high-efficient convenient to detect, all actions are high-efficient quick, 1.8s (be less than 2s of equipment's function beat) when whole usefulness, realize that equipment does not shut down and continuously operates.
Drawings
Fig. 1 schematically shows the overall structure of the present invention;
FIG. 2 schematically illustrates an enlarged detail view of portion A of FIG. 1 in accordance with the present invention;
FIG. 3 illustrates a schematic view of an adjustable platform of the present invention;
FIG. 4 illustrates a schematic lateral adjustment of the adjustable platform of the present invention;
FIG. 5 illustrates a schematic longitudinal adjustment of the adjustable platform of the present invention;
FIG. 6 is a schematic view of a welding fixture of the present invention;
FIG. 7 schematically illustrates a product of the invention;
FIG. 8 is a schematic view of a welding station of the present invention;
FIG. 9 is an enlarged detail view of portion B of FIG. 1 illustrating the present invention;
FIG. 10 is a schematic diagram illustrating a clip replacement structure of the present invention;
FIG. 11 is an enlarged detail view of portion C of FIG. 9 illustrating the present invention;
in the figure: A. a schematic view of a stent layout; B. schematic diagram of high-speed switching work station; C. a matching schematic diagram of the fixture replacing structure and a fixture fixing clamp of the welding fixture;
1. the automatic clamp device comprises a support 2, a camera 3, a light source 31, a positioning step 32, a side push block 33, a fixed push block 4, a welding clamp 5, an adjustable platform 51, a longitudinal adjusting knob 52, a transverse adjusting knob 53, a fixed block 54, a transverse fixing knob 55, an installation block 56, a longitudinal slide block 57, a guide block 6, a welding cover plate 8, a clamp feeding assembly line 9, a clamp blanking assembly line 10, a portal frame 101, a transverse moving module 102, a vertical moving module 103, a second grabbing module 104, a first grabbing module 1041, a chuck 105, a clamp opening mechanism 11, a high-speed annular guide line 12, a high-speed platform 13 and a clamp fixing clamp.
Detailed Description
The embodiment provides an automatic protection device for high-speed switching of a precision welding fixture, which mainly comprises a closed high-speed annular guide rail line, a plurality of high-speed platforms, a high-precision follow-up bearing assembly, a grabbing module, a camera, a welding station and a high-speed switching station, wherein the welding station and the high-speed switching station are arranged along the high-speed annular guide rail line; the high-speed platform moves along the high-speed annular guide rail line, a clamp fixing clamp is arranged on the high-speed platform, an inclined hole is formed in the clamp fixing clamp, and the clamp fixing clamp is used for fixing a welding clamp; the high-precision follow-up bearing assembly is arranged at one arc end of the high-speed annular guide rail; the grabbing module is arranged on the portal frame, and the portal frame is also provided with a transverse moving module and a vertical moving module which drive the grabbing module to move; the camera is arranged on the bracket through the adjustable platform and is used for judging whether the product is neglected to be installed or deviated in the welding fixture; the welding station comprises a laser lens and a welding mechanism; the high-speed switching work station comprises an opening mechanism, and a transverse motion module and a vertical motion module on the portal frame drive the opening mechanism to be inserted into the clamp fixing clamp so as to separate the clamp fixing clamp from the welding clamp.
Referring to fig. 1, the detection mechanism of the welding fixture includes a support, two adjustable platforms, a camera and a light source 3, the two adjustable platforms are connected to the support 1 and are respectively used for connecting the camera 2 and the light source 3, wherein the camera 2 is used for performing CCD detection on the welding fixture 4, and the light source 3 is used for providing proper illumination for the camera 2. Preferably, the light source 3 is an LED ring light source, and the LED ring light source is disposed at the lower side of the camera 2.
The adjustable platform consists of a fixed block and an installation block, the fixed block is installed on the support, the camera is installed on the installation block, and the fixed block is connected with the installation block through a longitudinal adjusting mechanism and a transverse adjusting mechanism. In order to adjust the position of the camera 2 and the light source mounted on said adjustable platform. For example, in one embodiment, as shown in fig. 2, 3 and 4, the adjustable platform includes a fixed block 53 and a mounting block 55, the fixed block 53 is used for connecting with the bracket 1, and the mounting block 55 is used for connecting with the camera 2 or the light source 3. The fixed block 53 is connected with a longitudinal sliding block 56 which can move longitudinally in a matching mode, for example, the fixed block 53 is provided with a longitudinal sliding groove, the longitudinal sliding block 56 is matched in the longitudinal sliding groove, the longitudinal adjusting knob is provided with threads, the lead screw is controlled to stretch and retract by rotating the longitudinal adjusting knob, so that the sliding block can move, the longitudinal sliding block 56 is connected with a guide block 57 and can drive the guide block 57 to move synchronously, the guide block 57 is provided with a transverse adjusting knob 52, the transverse adjusting knob 52 is connected with a lead screw in a matching mode through the threads, the other end of the lead screw is connected with a transverse sliding block, and the transverse sliding block is connected with the mounting block 55, so that the transverse sliding block and the mounting block 55 can be driven to move transversely by rotating the transverse adjusting knob 52. Further, by adjusting the horizontal adjustment knob 52 and the vertical adjustment knob 51, the horizontal and vertical movement of the mounting block 55 can be realized, and the camera 2 or the light source 3 can be moved. In a preferred embodiment, the guide block 57 is further provided with a fixing plate, the fixing plate extends to one side of the mounting block 55, the fixing plate is provided with a guide groove, the transverse fixing knob 54 is connected in the guide groove, and transverse fixing can be realized by adjusting tightness of the transverse fixing knob 54.
When the device is used, the welding fixture 4 on the high-speed annular track line 11 is conveyed to a detection station and is stable in position, the CCD system receives a signal, the light source 3 is automatically turned on, and the camera 2 photographs and recognizes for detection. The camera 2 saves the images after taking the pictures and automatically identifies the collected image characteristics. And after the image recognition is finished, transmitting the recognition information to the welding work station and the high-speed switching work station so as to carry out subsequent operation.
The welding fixture 4 which is qualified by detection is conveyed to a welding station by the high-speed annular guide rail line 11, and then welding operation is carried out on the product. At the welding station, the product is fed into the welding fixture 4 and the corresponding welding operation is performed. Combine fig. 5 and fig. 6 to show, welding jig 4 on be equipped with the corresponding location step 31 that sets up of cavity of product for fix a position the cavity of product, and the both sides of product be equipped with fixed ejector pad 33 and side ejector pad 32 respectively, side ejector pad 32 be close to one side of product and be equipped with a plurality of 0.5 mm's side and push away the needle, side ejector pad 32 and side push away actuating mechanism, for example the cylinder, be connected and can be close to or keep away from under the promotion of side push away actuating mechanism fixed ejector pad 33, thereby fixed product. As shown in fig. 7 and 8, a welding mechanism is further provided at the welding station, and the welding cover plate 6 driven by the driving mechanism is pressed down to perform welding operation on the product.
And the welding clamp 4 which is detected to be unqualified is conveyed to the high-speed switching work station by the high-speed annular guide rail line 11 and then is subjected to clamp changing operation. Trade press from both sides the mechanism and include anchor clamps material loading assembly line 8, anchor clamps unloading assembly line 9 and open and press from both sides the mechanism, lateral motion module and vertical motion module on the portal frame drive and open and press from both sides the mechanism and insert the anchor clamps fixation clamp, make anchor clamps fixation clamp and welding jig separation, anchor clamps material loading assembly line 8 and anchor clamps unloading assembly line 9 along transversely set up in endless conveyor belt 11's both sides.
During the use, after the recognition is unqualified, send the instruction to the welding work station, the welding work station does not carry out the laser welding operation, welding jig 4 continues to be carried the high-speed switching work station by annular conveyer belt 11, the high-speed switching work station receives the instruction after, transverse motion module 101 cooperates the vertical motion module drive second and snatchs the module and move to 8 upsides on anchor clamps material loading assembly line, the second snatchs module and drives reserve welding jig 4 on the material loading assembly line 8 of clamping jaw subassembly centre gripping anchor clamps, place on high-speed platform, transverse motion module 101 cooperates the vertical motion module drive first module of snatching 104 and drives the unqualified welding jig 4 of detection on the high-speed annular guide line 11 of clamping jaw subassembly centre gripping, place on anchor clamps unloading assembly line, then return to the normal position respectively.
In one embodiment, the high-speed platform 12 is provided with a positioning pin, the welding fixture 4 is provided with a positioning hole corresponding to the positioning pin, and the positioning pin and the positioning hole are matched and connected quickly and effectively when the welding fixture 4 is taken and placed. In a preferred embodiment, as shown in fig. 9, 10 and 11, the high-speed switching station includes an opening mechanism, the high-speed platform 12 is provided with a movable clamp fixing clamp 13, for example, the clamp fixing clamp 13 is disposed in a chute, a fixed insert is disposed on one side of the movable clamp fixing clamp 13, and a force directed to the fixed insert is applied to the welding clamp 4 by the movable clamp fixing clamp 13 to fix the welding clamp 4. The clamp fixing clamp 13 is provided with an inclined hole which is gradually close to the welding clamp 4 from top to bottom corresponding to the clamp opening mechanism 105, and the clamp opening mechanism can be contacted with the inclined hole when being driven to move downwards by the vertical movement module, so that the clamp fixing clamp 13 is driven to move towards the direction far away from the welding clamp 4 to loosen the clamping of the welding clamp 4. And, the said clamp fixing clamp 13 is also connected with an elastic member, such as a spring, which applies a force directed to the welding clamp 4, so that after the clamp opening mechanism 105 is out of contact with the inclined hole, the clamp fixing clamp 13 can be reset under the force of the spring and continue to clamp the welding clamp 4.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be within the technical scope of the present invention, and the technical solutions and novel concepts according to the present invention should be covered by the scope of the present invention.
Claims (7)
1. An automatic protection device for high-speed switching of precision welding fixtures is characterized by comprising
The high-speed annular guide rail line is closed, and a welding station and a high-speed switching station are arranged along the high-speed annular guide rail line;
the high-speed platforms move along the high-speed annular guide rail line, the high-speed platforms are provided with clamp fixing clamps, inclined holes are formed in the clamp fixing clamps, and the clamp fixing clamps are used for fixing welding clamps;
the high-precision follow-up bearing assembly is arranged at one arc end of the high-speed annular guide rail;
the grabbing module is arranged on the portal frame, and the portal frame is also provided with a transverse moving module and a vertical moving module which drive the grabbing module to move;
the camera is arranged on the bracket through the adjustable platform and is used for judging whether the product is neglected to be installed or deviated in the welding fixture;
the welding station comprises a laser lens and a welding mechanism;
the high-speed switching work station comprises an opening and clamping mechanism, and a transverse motion module and a vertical motion module on the portal frame drive the opening and clamping mechanism to be inserted into the clamp fixing clamp so as to separate the clamp fixing clamp from the welding clamp.
2. The automatic protection device for high-speed switching of the precision welding fixture according to claim 1, wherein: the adjustable platform consists of a fixed block and an installation block, the fixed block is installed on the support, the camera is installed on the installation block, and the fixed block and the installation block are connected through a longitudinal adjusting mechanism and a transverse adjusting mechanism.
3. The automatic protection device for high-speed switching of the precision welding fixture as claimed in claim 2, wherein: the longitudinal adjusting mechanism and the transverse adjusting mechanism are both composed of a sliding block and a screw rod and comprise a longitudinal adjusting knob and a transverse adjusting knob, the adjusting knob is provided with threads meshed with the screw rod, the adjusting knob is rotated to control the screw rod to stretch and retract, and then the sliding block is controlled to move, so that transverse adjustment and longitudinal adjustment are realized.
4. The automatic protection device for high-speed switching of the precision welding fixture according to claim 1, wherein: the high-speed platform is provided with a positioning needle, and the welding fixture is provided with a positioning hole corresponding to the positioning needle.
5. The automatic protection device for high-speed switching of the precision welding fixture according to claim 1, wherein: the welding fixture is provided with a positioning step, and the welding fixture is also relatively provided with a fixed push block and a side push block for positioning a product.
6. The automatic protection device for high-speed switching of the precision welding jig as claimed in claim 1, further comprising a jig feeding line and a jig discharging line, which are transversely disposed on both sides of the high-speed circular guide line.
7. The use method of the automatic protection device for high-speed switching of the precision welding jig as claimed in claim 1 is characterized in that the method comprises the following steps:
s1, arranging a product on a welding fixture, and driving the welding fixture to move along a high-speed annular track line by a high-speed platform;
s2, judging whether the product is neglected to be installed or is deviated in the welding fixture by the camera;
s21, no missing installation or offset exists, the high-speed platform continues to drive the welding fixture to move to a welding station, and the welding mechanism welds the product;
s22, neglected loading or deviation exists, the high-speed platform drives the abnormal fixture to the high-speed switching work station, the clamp opening mechanism enables the abnormal fixture to be separated from the fixture fixing clamp, the first grabbing module takes down the abnormal fixture to be conveyed to the fixture blanking assembly line, and the second grabbing module conveys the standby welding fixture to the high-speed platform from the fixture feeding assembly line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276196.8A CN115338538A (en) | 2022-10-19 | 2022-10-19 | Automatic protection device and method for high-speed switching of precision welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276196.8A CN115338538A (en) | 2022-10-19 | 2022-10-19 | Automatic protection device and method for high-speed switching of precision welding fixture |
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| Publication Number | Publication Date |
|---|---|
| CN115338538A true CN115338538A (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211276196.8A Pending CN115338538A (en) | 2022-10-19 | 2022-10-19 | Automatic protection device and method for high-speed switching of precision welding fixture |
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Application publication date: 20221115 |
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