CN114083127B - Reversible laser welding machine clamping mechanism and working method thereof - Google Patents

Reversible laser welding machine clamping mechanism and working method thereof Download PDF

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Publication number
CN114083127B
CN114083127B CN202210060893.3A CN202210060893A CN114083127B CN 114083127 B CN114083127 B CN 114083127B CN 202210060893 A CN202210060893 A CN 202210060893A CN 114083127 B CN114083127 B CN 114083127B
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China
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groups
clamping
positioning
lower clamping
operating platform
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CN114083127A (en
Inventor
刘俊
王志伟
王玉强
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Herolaser Intelligent Equipment Heyuan Co Ltd
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Herolaser Intelligent Equipment Heyuan Co Ltd
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    • 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

Abstract

The invention provides a clamping mechanism of a reversible laser welding machine and a working method thereof, belonging to the technical field of laser welding equipment, and the clamping mechanism of the reversible laser welding machine comprises a clamping mechanism body and a clamping mechanism body; a base; the operating platform is arranged on the upper side of the base; the supporting mechanism is arranged between the base and the operating platform and supports the operating platform in an adjustable mode to increase stability; the turnover mechanism is arranged on the supporting mechanism and is in rotating fit with the operating platform, and the turnover mechanism is used for realizing turnover of the operating platform; the positioning mechanism is arranged on the turnover mechanism and used for adjusting the turnover of the turnover mechanism; the bidirectional clamping mechanisms are symmetrically arranged, each group of bidirectional clamping mechanisms is provided with a plurality of groups, and the groups of bidirectional clamping mechanisms are transversely arranged at equal intervals; and a drive mechanism. The invention aims to solve the technical problems of low efficiency caused by turnover and low efficiency caused by difficulty in clamping a plurality of workpieces to be processed in the prior art.

Description

Reversible laser welding machine clamping mechanism and working method thereof
Technical Field
The invention belongs to the technical field of laser welding equipment, and particularly relates to a clamping mechanism of a reversible laser welding machine and a working method thereof.
Background
Along with the rapid development of social economy, the application range of laser welding is wider and wider, the laser welding is an efficient and precise welding method using a laser beam with high energy density as a heat source, the laser welding is one of important aspects of processing technology application, along with the development of various laser welding machines to high power, lightness and economy, the laser welding accords with the technical development directions of high quality, low consumption, high efficiency, cleanness, narrow heat affected zone, small joint deformation, flexible operation and the like due to high energy concentration and small heat affected zone, not only can carry out deep fusion welding on large components, but also can carry out precise welding on micro components, and has very wide application prospect.
The authorization publication number "CN 214684734U" describes "a clamping mechanism of a reversible laser welding machine, which places two groups of special-shaped workpieces to two groups of first clamping plates and two groups of second clamping plate brackets, extends through two groups of first hydraulic cylinders and two groups of second hydraulic cylinders, so that the two groups of first clamping plates and the two groups of second clamping plates clamp the two groups of special-shaped workpieces, and then welds the joint of the two groups of special-shaped workpieces through laser welding equipment; comprises a workbench, a supporting structure, two groups of guide posts, two groups of first fixing seats, two groups of connecting posts, two groups of second fixing seats, two groups of first hydraulic cylinders, two groups of second hydraulic cylinders, two groups of first clamping plates, two groups of second clamping plates and two groups of first motors.
The aforesaid is put two sets of special-shaped workpiece to two sets of first splint and two sets of second splint supports, extend through two sets of first pneumatic cylinders and two sets of second pneumatic cylinders, make two sets of first splint and two sets of second splint clip two sets of special-shaped workpiece, later weld the seam crossing of two sets of special-shaped workpiece through laser welding equipment, through opening two sets of first motors, make two sets of first fixing bases rotate in step, turn over two sets of special-shaped workpiece, make laser welding equipment weld the seam crossing of two sets of special-shaped workpiece another sides, thereby improve and reduce welding error, improve the welding effect.
The above-mentioned patent upset is in order to weld the seam crossing of two sets of special-shaped workpiece another sides, but the seam crossing welding of two sets of special-shaped workpiece another sides need not the upset alright accomplish, and its upset leads to inefficiency, and above-mentioned patent still exists a plurality of work pieces of treating of centre gripping simultaneously, leads to inefficiency then.
Disclosure of Invention
The invention aims to provide a clamping mechanism of a reversible laser welding machine and a working method thereof. The invention aims to solve the technical problems of low efficiency caused by turnover and low efficiency caused by difficulty in clamping a plurality of workpieces to be processed in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a reversible laser welder clamping mechanism, comprising:
a base;
the operating platform is arranged on the upper side of the base;
the supporting mechanism is arranged between the base and the operating platform and supports the operating platform in an adjustable mode to increase stability;
the turnover mechanism is arranged on the supporting mechanism, is in rotating fit with the operating platform and is used for realizing turnover of the operating platform;
the positioning mechanism is arranged on the turnover mechanism and used for adjusting the turnover of the turnover mechanism;
the bidirectional clamping mechanisms are symmetrically arranged, each group of the bidirectional clamping mechanisms is provided with a plurality of groups, and the groups of the bidirectional clamping mechanisms are transversely arranged at equal intervals; and
and the driving mechanism is arranged on the operating platform and is simultaneously connected with the two groups of bidirectional clamping mechanisms and used for driving the two groups of bidirectional clamping mechanisms to realize upper clamping or lower clamping. The invention aims to solve the technical problems of low efficiency caused by turnover and low efficiency caused by difficulty in clamping a plurality of workpieces to be processed in the prior art.
As a preferred scheme of the invention, a plurality of lower clamping fixing plates which are arranged at equal intervals are arranged at the bottom of the operating platform;
each subgroup of said bidirectional gripping mechanisms comprising:
the mounting assembly is arranged at the top of the operating platform;
the extrusion assembly is arranged on the mounting assembly and is in threaded fit with the mounting assembly;
the upper sliding assembly is arranged on the operating platform in a sliding manner and is positioned on one side of the extrusion assembly;
the upper clamping fixing plate is arranged at the top of the operating platform and is positioned on one side of the upper sliding assembly, and the upper sliding assembly is matched with the upper clamping fixing plate to realize upper clamping;
the sliding connection assembly is arranged on the operating platform in a sliding mode and is positioned on the other side of the extrusion assembly; and
the lower sliding assembly is arranged on the sliding connection assembly and is positioned at the bottom of the operating platform;
wherein: each lower clamping fixing plate is respectively positioned between the two groups of lower sliding assemblies and matched with the two groups of lower sliding assemblies to realize lower clamping.
As a preferred scheme of the invention, each group of the mounting assemblies comprises two screw seats, and the two screw seats are arranged at the top of the operating platform;
each group of the extrusion assemblies comprises a screw and an extrusion gear, the two screw seats are respectively provided with a thread groove matched with the screw, the screw is in threaded fit with the two screw seats through the thread grooves, and the extrusion gear is arranged at one end part of the screw;
each group of upper sliding assemblies comprises an upper clamping moving plate, inverted T-shaped sliding blocks, an upper clamping guide rod and upper clamping springs, two groups of inverted T-shaped sliding grooves are symmetrically formed in the top of the operating table, a plurality of groups of upper clamping guide rods are arranged in each group of inverted T-shaped sliding grooves, two inverted T-shaped sliding grooves are arranged in each group of inverted T-shaped sliding grooves at equal intervals, two inverted T-shaped sliding blocks and two upper clamping guide rods are arranged in each group of inverted T-shaped sliding grooves, the upper clamping moving plate is arranged on one side of the screw, the two inverted T-shaped sliding blocks are symmetrically arranged on the bottom of the upper clamping moving plate, the two inverted T-shaped sliding blocks are respectively arranged in the two inverted T-shaped sliding grooves in a sliding mode, each upper clamping guide rod is arranged between two side walls of each inverted T-shaped sliding groove, the upper clamping guide rods movably penetrate through the inverted T-shaped sliding blocks and are in sliding fit with the inverted T-shaped sliding grooves, and the upper clamping springs are arranged between two side walls of the inverted T-shaped sliding blocks and the two side walls of the inverted T-shaped sliding grooves, the upper clamping spring is movably sleeved on the circumferential surface of the upper clamping guide rod, and the upper clamping moving plate and the upper clamping fixed plate are matched with each other to realize upper clamping;
each group of the sliding connection components comprises a lower clamping connection plate, a lower clamping slide block, a lower clamping guide rod and a lower clamping spring, two groups of rectangular slide holes are symmetrically formed in the top of the operating table, a plurality of groups of the rectangular slide holes are arranged in each group, the rectangular slide holes are arranged in a plurality of groups in an equidistant manner, two rectangular slide holes are arranged in each group, the lower clamping connection plate is arranged on one side of the extrusion gear, two lower clamping slide blocks and two lower clamping guide rods are arranged, the two lower clamping guide rods are symmetrically arranged at the bottom of the lower clamping connection plate, the two lower clamping slide blocks are respectively arranged in the two rectangular slide holes in a sliding manner, each lower clamping guide rod is arranged between two side walls of the rectangular slide hole, the lower clamping guide rods movably penetrate through the lower clamping slide blocks and are in sliding fit with the lower clamping slide blocks, and the lower clamping springs are arranged between two side ends of the lower clamping slide blocks and two side walls of the rectangular slide holes, the lower clamping spring is movably sleeved on the circumferential surface of the lower clamping guide rod;
each group of lower sliding assemblies comprises a lower clamping moving plate, the lower clamping moving plates are arranged at the bottoms of the lower clamping sliding blocks and are positioned at the bottom of the operating platform, and the lower clamping moving plates and the lower clamping fixing plates are matched with each other to realize lower clamping.
As a preferable aspect of the present invention, the drive mechanism includes:
the matching assembly is arranged on the upper side of the operating platform and is respectively matched with the two groups of driving mechanisms;
two mounting seats are arranged and symmetrically arranged at the edges of two sides of the top of the operating platform;
the two groups of drawing components are respectively matched with the two mounting seats in a sliding manner and connected with the matching components;
and the two groups of locking assemblies are respectively in threaded fit with the two mounting seats and are used for fixing the drawing assembly.
As a preferable scheme of the present invention, the matching assembly includes a first rack, a second rack and two connecting bars, wherein teeth of the first rack are arranged downward, the first rack is arranged at an upper side of one of the large groups of the extrusion gears and is engaged with the extrusion gears, teeth of the second rack are arranged upward, the second rack is arranged at a lower side of the other large group of the extrusion gears and is engaged with the extrusion gears, the number of the connecting bars is two, and the first rack and the second rack are connected by the two connecting bars;
each group of drawing components comprises a rectangular sliding block and a handle, the rectangular sliding block is arranged at the outer side end of the connecting bar and is in sliding fit with the mounting seat, the outer side end of the rectangular sliding block extends to the outer side of the mounting seat, and the handle is arranged at the outer side end of the rectangular sliding block;
every group locking Assembly all includes set nut, set nut screw thread is located on the mount pad.
As a preferred aspect of the present invention, there are two sets of the supporting mechanisms, and the two sets of the supporting mechanisms are symmetrically disposed between the base and the operating platform, wherein each set of the supporting mechanisms includes:
the fixed supporting component is arranged at the top of the base; and
the two groups of rotating support assemblies are symmetrically arranged on the fixed support assembly;
the two groups of turnover mechanisms are respectively arranged on the two groups of fixed supporting components and are in rotating fit with the operating platform;
the positioning mechanism includes:
the transmission assembly is arranged on one group of the turnover mechanisms; and
and the elastic positioning assembly is arranged on one group of the turnover mechanisms and is connected with the transmission assembly.
As a preferred scheme of the invention, each group of fixed supporting components comprises two special-shaped supporting legs and two first supporting flat plates, wherein the two first supporting flat plates are arranged at the top of the base, and the first supporting flat plates are arranged at the tops of the two special-shaped supporting legs;
every group the rotation support subassembly all includes support pivot, second support flat board, support hemisphere and poker rod, it rotates to support the pivot to locate first support flat board top edge, the second supports the flat board to locate support the pivot top, it is equipped with a plurality ofly, a plurality of to support the hemisphere equidistance and locate the second supports dull and stereotyped top, and is a plurality of support hemisphere top with the operation panel bottom contacts, the poker rod is located support in the pivot, wherein:
the support rotating shaft is positioned at the outer side of the side end of the operating platform, the poke rod is arranged outwards along the direction of the transverse central axis of the second support flat plate, and when the second support flat plate and the poke rod rotate to the horizontal position, the second support flat plate and the poke rod are positioned at the outer side of the side end of the operating platform;
each group of turnover mechanisms comprises an L-shaped fixed plate and a turnover rotating shaft, the L-shaped fixed plate is arranged at the outer end part of the first support flat plate, one end of the turnover rotating shaft is rotatably arranged on the side wall of the L-shaped fixed plate close to the operating platform, and the other end of the turnover rotating shaft is connected with the side end of the operating platform;
the transmission assembly comprises a second bevel gear, a positioning rotating shaft, a first bevel gear and an operating hand wheel, the positioning rotating shaft is rotatably arranged on the longitudinal side wall of the L-shaped fixing plate, the bottom of the positioning rotating shaft rotatably penetrates through the L-shaped fixing plate and extends downwards, the first bevel gear is arranged at the top of the positioning rotating shaft, the second bevel gear is arranged on the circumferential surface of the overturning rotating shaft and is meshed with the first bevel gear, and the operating hand wheel is arranged on the circumferential surface of the positioning rotating shaft and is positioned at the upper side of the longitudinal side wall of the L-shaped fixing plate;
elastic positioning subassembly includes positioning gear, location inner ring gear, pull rod, positioning spring and semi-ring brace, positioning gear locates location pivot bottom, location inner ring gear locate L type fixed plate downside and with positioning gear meshes mutually, pull rod and positioning spring all are equipped with two, two the pull rod is all located tooth ring top in the location, two the equal activity of pull rod runs through L type fixed plate upwards extends, two positioning spring all locates L type fixed plate bottom with between the tooth ring top in the location, two positioning spring overlaps respectively and locates two pull rod circumferential surface, the semi-ring brace is located two the pull rod top, wherein:
and the semi-ring brace is pulled upwards, the positioning gear is separated from the positioning inner gear ring, the operating hand wheel is rotated, the operating platform is finally driven to overturn by 180 degrees, and the positioning gear is meshed with the positioning inner gear ring after being reset based on the elastic acting force of the positioning spring.
As a preferable aspect of the present invention, the present invention further includes:
the collecting mechanism is arranged on the base, positioned on the lower side of the operating platform and used for collecting the workpieces clamped up or down;
the signal transmission mechanism is arranged on the positioning mechanism and used for carrying out signal transmission;
the vibration sensor is arranged on the material collecting mechanism and is used for carrying out signal transmission; and
the PLC is arranged on one of the special-shaped supporting legs and is in signal connection with the material collecting mechanism, the vibration sensor and the signal transmission mechanism, and an interval driving program is arranged in the PLC;
wherein:
the mechanism that gathers materials includes:
the first material collecting component is used for collecting the upper clamped workpiece; and
the second material collecting component is used for collecting the lower clamped workpiece; wherein:
the first material collecting component and the second material collecting component are used for realizing ascending based on the signal transmitted by the signal transmission mechanism and matched with an interval driving program;
the first and second aggregate components effect a descent based on the signal transmitted by the vibration sensor.
As a preferred scheme of the present invention, the signal transmission mechanism includes a wireless signal transceiver module and a wireless signal transmitting module, the wireless signal transceiver module is disposed on the operating handwheel, the wireless signal transmitting module is disposed on the semi-ring brace, the operating handwheel and the semi-ring brace are initially in a contact state, the operating platform is driven to turn over 180 °, the operating handwheel and the semi-ring brace are initially still in a contact state, and when the operating handwheel is separated from the semi-ring brace and then contacts with the semi-ring brace, a signal is transmitted to the PLC controller;
the first material collecting assembly comprises two first material collecting grooves, two U-shaped connecting plates and two first electric cylinders, the two first material collecting grooves are respectively positioned at the lower sides of the two groups of upper clamping fixed plates and upper clamping movable plates, the two U-shaped connecting plates are respectively arranged between the side ends of the two first material collecting grooves, at least two first electric cylinders are arranged, and at least two first electric cylinders are arranged between the bottom of each U-shaped connecting plate and the top of the base;
the second material collecting assembly comprises a second material collecting groove and at least two second electric cylinders, the second material collecting groove is formed in the lower sides of the lower clamping fixing plates, and the at least two second electric cylinders are arranged between the bottom of the second material collecting groove and the top of the base;
the vibration sensors are provided with three groups, the three groups of vibration sensors are respectively embedded in the second material collecting groove and the two first material collecting grooves, each group of vibration sensors is provided with a plurality of vibration sensors, the vibration sensors are arranged at equal intervals, and protective cotton is paved in the second material collecting groove and the two first material collecting grooves;
and when the vibration signal is greater than a vibration threshold value set by the vibration sensor, the vibration sensor transmits the signal.
A working method of a clamping mechanism of a reversible laser welding machine comprises the following steps:
s1, upper clamping: sequentially unscrewing two positioning nuts, sequentially placing a plurality of identical workpieces to be machined between two groups of upper clamping fixed plates and upper clamping movable plates, pulling handles outwards, driving a first rack and a second rack to do linear motion through a rectangular sliding block and a connecting strip, respectively driving the two groups of extrusion gears to rotate and respectively move outwards along the tooth direction tracks of the first rack and the second rack based on the meshing transmission between the two groups of extrusion gears and the first rack and the second rack, respectively driving the two groups of extrusion gears to respectively drive two groups of screw rods to rotate and move outwards, and gradually extruding the two groups of upper clamping movable plates and driving the two groups of upper clamping movable plates to be close to the upper clamping fixed plates until the workpieces to be machined are clamped upwards;
s2, clamping and fixing: the two positioning nuts are screwed in sequence, the handle cannot be pulled at the moment, and clamping and fixing are finally realized;
s3, primary inversion: welding the upper clamped workpiece to be processed, rotating the poke rod to realize the rotation of the support rotating shaft after the welding is finished, finally rotating the plurality of support hemispheres to be parallel to the transverse central axis of the first support flat plate, executing the operation as above, sequentially rotating the four groups of rotary support assemblies to ensure that the rotary support assemblies do not support the operating platform any more and do not prevent the operating platform from overturning, pulling up the semi-ring brace, so that the positioning gear is separated from the positioning inner gear ring, then the operating hand wheel is rotated to finally drive the operating platform to turn over for 180 degrees, the semi-ring brace is not pulled upwards, after the positioning gear is reset based on the elastic acting force of the positioning spring, the positioning gear is meshed with the positioning inner gear ring, the wireless signal transceiving module is contacted with the wireless signal transmitting module again at the moment, then signal transmission is carried out, an interval driving program arranged in the PLC drives at least two first electric cylinders to extend, and then the two first material collecting tanks are conveyed to the lower sides of the two groups of upper clamping moving plates and the upper clamping fixing plates which are overturned;
s4, collecting by lower clamping and upper clamping: sequentially placing a plurality of identical workpieces to be processed between a plurality of lower clamping fixed plates and two groups of lower clamping movable plates after being turned, sequentially unscrewing two positioning nuts, pushing handles inwards, driving a first rack and a second rack to do linear motion through a rectangular sliding block and a connecting strip, respectively driving two groups of extrusion gears to respectively rotate and respectively move inwards along the tooth direction tracks of the first rack and the second rack based on the meshing transmission between the two groups of extrusion gears and the first rack and the second rack, respectively driving two groups of extrusion gears to respectively rotate and respectively drive two groups of screw rods to rotate and move inwards, gradually extruding two groups of lower clamping connecting plates, finally gradually extruding two groups of lower clamping movable plates and driving the lower clamping fixed plates to be close to the lower clamping fixed plates until the workpieces to be processed are clamped downwards, and simultaneously, the workpieces which are clamped upwards and welded are not clamped any more, then the materials fall downwards, finally fall into two first material collecting grooves, and vibrate in the falling process, wherein two groups of vibration sensors sense the vibration and generate corresponding vibration signals, the vibration signals are transmitted into a PLC (programmable logic controller), the PLC automatically controls at least two first electric cylinders to shorten and reset, then upper clamping collection is completed, and then step S2 is continuously executed to complete clamping fixation;
s5, rotating and supporting: rotating the poke rod to realize the rotation of the supporting rotating shaft, finally realizing the contact of the tops of the supporting hemispheres and the bottom of the operating platform, and sequentially rotating the four groups of rotating supporting assemblies to support the operating platform;
s6, secondary overturning: welding the workpiece to be processed which is clamped downwards, rotating the poke rod after the end of welding to finally ensure that the plurality of supporting hemispheres do not support the operating platform any more, sequentially rotating the four groups of rotating supporting assemblies to ensure that the operating platform is not supported any more and the overturning of the operating platform is not hindered, pulling up the semi-ring brace, so that the positioning gear is separated from the positioning inner gear ring, then the operating hand wheel is rotated, finally the operating platform is driven to turn over for 180 degrees again, the semi-ring brace is not pulled upwards, after the positioning gear is reset based on the elastic acting force of the positioning spring, the positioning gear is meshed with the positioning inner gear ring, the wireless signal transceiving module is contacted with the wireless signal transmitting module again at the moment, then signal transmission is carried out, an interval driving program arranged in the PLC drives at least two second electric cylinders to extend, and then the second material collecting groove is conveyed to a position between the lower clamping fixed plate which is overturned and the two groups of lower clamping movable plates;
s7, collecting by upper clamping and lower clamping: and S1 is executed, then the upper clamping is realized again, in the process of the upper clamping, the workpiece clamped and welded down is not clamped any more, then drops downwards and finally drops into the second material collecting groove, the workpiece vibrates in the dropping process, the other group of vibration sensors sense the vibration and generate corresponding vibration signals, the vibration signals are transmitted into the PLC, the PLC automatically controls at least two second electric cylinders to be shortened so as to reset, and then the lower clamping collection is completed.
Compared with the prior art, the invention has the beneficial effects that:
(1) based on the meshing transmission principle that a first rack and a second rack are respectively engaged with two groups of extrusion gears, the two groups of extrusion gears can be respectively rotated by utilizing the thread fit between a screw rod and a screw seat, and simultaneously the two groups of extrusion gears respectively make linear motion along the tooth direction tracks of the first rack and the second rack, so that the two groups of extrusion gears are finally far away from or close to each other, when the two groups of extrusion gears are far away from each other, the two groups of screw rods respectively extrude the two groups of upper clamping moving plates, and then the two groups of extrusion gears are matched with the upper clamping fixing plates to realize upper clamping; when the two groups of extrusion gears are close to each other, the two groups of extrusion gears respectively extrude the two groups of lower clamping connecting plates, then the two groups of lower clamping moving plates are gradually close to the group of lower clamping fixing plates, and finally the two groups of lower clamping moving plates are matched with the lower clamping fixing plates to realize lower clamping.
(2) The invention combines upper clamping or lower clamping and overturning, can realize lower clamping and upper clamping collection or upper clamping and lower clamping collection at the same time, can carry out lower clamping after overturning the workpiece clamped and welded at the upper part for 180 degrees, and can collect the workpiece clamped and welded at the upper part by falling downwards when carrying out the lower clamping process so as to finish lower clamping and upper clamping collection; in a similar way, after the workpiece which is clamped and welded is overturned by 180 degrees, the workpiece can be clamped, when the clamping process is carried out, the workpiece which is clamped and welded can drop downwards, then the workpiece can be collected, the clamping and the lower clamping collection are completed, the clamping and the collection process are simultaneously realized, the operation is convenient, and the efficiency is high.
(3) The overturning device is used for realizing the rotation of the overturning rotating shaft based on the bevel gear transmission principle, driving the positioning rotating shaft to rotate by rotating the operation hand wheel, further realizing the rotation of the first bevel gear, driving the rotation of the second bevel gear by the rotation of the first bevel gear, further realizing the rotation of the overturning rotating shaft, driving the operation table to rotate by the rotation of the two overturning rotating shafts, finally realizing the overturning of the operation table, realizing the reversing rotation based on the bevel gear transmission principle, facilitating the quick operation and control of an operator, and being convenient and quick.
(4) According to the invention, through pulling up the semi-ring brace, the positioning gear is separated from the positioning inner gear ring, then the operating hand wheel is rotated, finally the operating table is driven to turn over by 180 degrees, after the positioning gear is reset based on the elastic acting force of the positioning spring, the positioning gear is meshed with the positioning inner gear ring, and at the moment, the turning rotating shaft is in a non-rotatable state. And then the operation table is not deflected any more, and the overturning positioning is completed.
(5) According to the invention, the support rotating shaft can rotate by rotating the poke rod, so that the second support flat plate and the plurality of support hemispheres do circular motion along the support rotating shaft as a circle center, and the plurality of support hemispheres can be supported or no longer support the operation table.
(6) When the semi-ring brace is pulled upwards, the wireless signal transmitting module is separated from the wireless signal receiving and transmitting module, the operating hand wheel is rotated to finally drive the operating platform to turn over for 180 degrees, the semi-ring brace is reset under the elastic action of the positioning spring, at the moment, the wireless signal transmitting module is contacted and attached with the wireless signal receiving and transmitting module again to generate an electric signal which is transmitted into the PLC, an interval driving program arranged in the PLC can brake, a first electric cylinder and a second electric cylinder are driven to extend at intervals to carry out a collecting process, and when a clamped and welded workpiece falls down, vibration to a certain degree can be generated. And the vibration signal is transmitted into the PLC controller, the PLC controller automatically controls at least two first electric cylinders to shorten and reset, then clamping and collection are completed, workpieces clamped and welded downwards drop, and finally drop into the second material collecting groove, vibration occurs in the dropping process, the other group of vibration sensors sense the vibration and generate corresponding vibration signals, and the vibration signals are transmitted into the PLC controller, the PLC controller automatically controls at least two second electric cylinders to shorten and reset the second electric cylinders, then clamping and collection are completed, through the arrangement, the first material collecting assembly and the second material collecting assembly are separately operated, if the vibration signals are synchronously operated, a large amount of electric energy can be wasted, the energy-saving effect can be achieved, the protective cotton can effectively protect the vibration sensors, and meanwhile, the dropped workpieces can be effectively protected.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a first perspective view of a clamping mechanism of a reversible laser welder according to the present invention;
FIG. 2 is an exploded view of a clamping mechanism of a reversible laser welding machine according to the present invention;
FIG. 3 is a perspective view of a clamping mechanism driving mechanism and a bidirectional clamping mechanism of a reversible laser welding machine according to the present invention;
FIG. 4 is an enlarged view of the area A of the clamping mechanism diagram 3 of the reversible laser welding machine of the present invention;
FIG. 5 is an enlarged view of the area B of the clamping mechanism diagram 3 of the reversible laser welding machine according to the present invention;
FIG. 6 is a first perspective cut-away view of a clamping mechanism of a reversible laser welder, in accordance with the present invention;
FIG. 7 is an enlarged view of the clamping mechanism of the reversible laser welder shown at C in FIG. 6;
FIG. 8 is an enlarged view of clamping mechanism D of the reversible laser welder of FIG. 6;
FIG. 9 is a second perspective view of a clamping mechanism of a reversible laser welding machine according to the present invention;
FIG. 10 is an enlarged view at F of a clamping mechanism diagram 9 of a reversible laser welder according to the present invention;
FIG. 11 is an enlarged view at G of a clamping mechanism diagram 10 of a reversible laser welder according to the present invention;
FIG. 12 is a second perspective cut-away view of a clamping mechanism of a reversible laser welding machine according to the present invention;
FIG. 13 is an enlarged view at H of a clamping mechanism diagram 12 of a reversible laser welder according to the present invention;
FIG. 14 is a third perspective view of a clamping mechanism of a reversible laser welder according to the present invention;
fig. 15 is a left side view of a clamping mechanism of a reversible laser welder according to the present invention.
In the figure: 1. a base; 2. a PLC controller; 3. an operation table; 301. an inverted T-shaped chute; 302. a rectangular slide hole; 4. a support mechanism; 401. special-shaped supporting legs; 402. a first support plate; 403. a support shaft; 404. a second support plate; 405. a supporting hemisphere; 406. a poke rod; 5. a material collecting mechanism; 501. a first material collecting groove; 502. a U-shaped connecting plate; 503. a first electric cylinder; 504. protecting cotton; 505. a second material collecting groove; 506. a second electric cylinder; 6. a turnover mechanism; 601. an L-shaped fixing plate; 602. turning over the rotating shaft; 7. a positioning mechanism; 703. a second bevel gear; 704. positioning the rotating shaft; 705. a first bevel gear; 706. positioning a gear; 707. positioning the inner gear ring; 708. a pull rod; 709. a positioning spring; 7010. semi-ring bracing; 7011. operating a hand wheel; 8. a drive mechanism; 801. a first rack; 802. a second rack; 803. a connecting strip; 804. a rectangular slider; 805. a mounting seat; 806. a handle; 807. positioning a nut; 9. a bidirectional clamping mechanism; 901. a screw; 902. a screw seat; 903. an extrusion gear; 904. a lower clamping fixing plate; 905. a lower clamping connection plate; 906. a lower clamping slide block; 907. a lower clamping moving plate; 908. a lower clamping guide rod; 909. a lower clamping spring; 9010. an upper clamping fixing plate; 9011. an upper clamping moving plate; 9012. an inverted T-shaped slider; 9013. an upper clamping guide rod; 9014. an upper clamping spring; 10. a vibration sensor; 11. a signal transmission mechanism; 1101. a wireless signal transceiving module; 1102. and a wireless signal transmitting module.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1-15, the present invention provides the following technical solutions:
a reversible laser welder clamping mechanism, comprising:
a base 1, an operation table 3 arranged on the upper side of the base 1
Referring to fig. 1, 2 and 15, a supporting mechanism 4 is disposed between the base 1 and the console 3, and supports the console 3 in an adjustable manner to increase stability, the supporting mechanism 4 is provided with two sets, the two sets of supporting mechanisms 4 are symmetrically disposed between the base 1 and the console 3, wherein each set of supporting mechanism 4 is composed of a fixed supporting component and a rotating supporting component, and the details are as follows:
with continued reference to fig. 1, 2, 14 and 15, the fixed support assembly is disposed on the top of the base 1, specifically: each group of fixed supporting components comprises two special-shaped supporting legs 401 and two first supporting flat plates 402, the two first supporting flat plates 402 are fixed at the top of the base 1, and the first supporting flat plates 402 are fixed at the tops of the two special-shaped supporting legs 401;
in this embodiment: the inner ends of the two groups of first supporting flat plates 402 are positioned outside the operating platform 3, and as the arrangement is adopted, the operating platform 3 can be smoothly turned over;
referring to fig. 1, 2, 14 and 15, the two groups of rotating supporting components are symmetrically disposed on the fixed supporting component, specifically: every group rotates the supporting component and all includes supporting pivot 403, the second supports dull and stereotyped 404, support hemisphere 405 and poker rod 406, support pivot 403 and rotate and locate first dull and stereotyped 402 top edge of supporting, the second supports dull and stereotyped 404 and is fixed in and supports the pivot 403 top, it is equipped with a plurality ofly to support hemisphere 405, a plurality of hemisphere 405 equidistance of supporting are fixed in the second and support dull and stereotyped 404 top, a plurality of hemisphere 405 tops of supporting contact with 3 bottoms of operation panel, poker rod 406 is located and is supported on the pivot 403, wherein:
the supporting rotating shaft 403 is located at the outer side of the side end of the operating platform 3, the poke rod 406 is arranged outwards along the horizontal central axis of the second supporting flat plate 404, and when the second supporting flat plate 404 and the poke rod 406 rotate to the horizontal position, the poke rod 406 is located at the outer side of the side end of the operating platform 3;
in this embodiment: the poke rod 406 is rotated to enable the support rotating shaft 403 to rotate, so that the second support flat plate 404 and the plurality of support hemispheres 405 do circular motion along the support rotating shaft 403 as a circle center, and then the plurality of support hemispheres 405 support or no longer support the operation table 3, the turnover mechanism 6 and the positioning mechanism 7 are adopted to turn over the operation table 3, but a plurality of workpieces to be processed need to be clamped on the operation table 3, and a plurality of parts need to be supported, so that the operation table 3 is not easily well supported only by the turnover mechanism 6 and the positioning mechanism 7, the operation table 3 can be well supported when needed by the arrangement, and when the operation table 3 is turned over, the support mechanism 4 is adjusted to prevent the operation table 3 from turning over;
referring to fig. 1, 9 and 11, the supporting mechanism 4 is provided with a turning mechanism 6, the turning mechanism 6 is in rotational fit with the console 3 for turning the console 3, the turning mechanism 6 is provided with two sets, and the two sets of turning mechanisms 6 are respectively disposed on the two sets of fixed supporting components and are in rotational fit with the console 3, specifically: each group of turnover mechanisms 6 comprises an L-shaped fixing plate 601 and a turnover rotating shaft 602, the L-shaped fixing plate 601 is fixed at the outer end part of the first supporting flat plate 402, one end of the turnover rotating shaft 602 is rotatably arranged on the side wall of the L-shaped fixing plate 601 close to the operating platform 3, and the other end of the turnover rotating shaft 602 is fixed with the side end of the operating platform 3;
in this embodiment: the turnover mechanism 6 belongs to the conventional arrangement in the field, and the operation table 3 can be rotated through the turnover rotating shaft 602 so as to turn over the operation table;
referring to fig. 1, 9 and 10, a positioning mechanism 7 is disposed on the turnover mechanism 6 for adjusting the turnover of the turnover mechanism 6, the positioning mechanism 7 is composed of a transmission assembly and an elastic positioning assembly, and the following descriptions are provided:
referring to fig. 9 and 10, the transmission assembly is disposed on one of the turning mechanisms 6, specifically: the transmission assembly comprises a second bevel gear 703, a positioning rotating shaft 704, a first bevel gear 705 and an operating handwheel 7011, the positioning rotating shaft 704 is rotatably arranged on the longitudinal side wall of the L-shaped fixing plate 601, the bottom of the positioning rotating shaft 704 rotatably penetrates through the L-shaped fixing plate 601 and extends downwards, the first bevel gear 705 is fixed at the top of the positioning rotating shaft 704, the second bevel gear 703 is fixed on the circumferential surface of the overturning rotating shaft 602 and is meshed with the first bevel gear 705, and the operating handwheel 7011 is fixed on the circumferential surface of the positioning rotating shaft 704 and is positioned at the upper side of the longitudinal side wall of the L-shaped fixing plate 601;
in this embodiment: the turning rotating shaft 602 is rotated based on the bevel gear transmission principle, the positioning rotating shaft 704 is driven to rotate by rotating the operating hand wheel 7011, the first bevel gear 705 is rotated to drive the second bevel gear 703 to rotate, the turning rotating shaft 602 is rotated, the two turning rotating shafts 602 are rotated to drive the operating platform 3 to rotate, and finally the operating platform 3 is turned, so that the reversing rotation is realized based on the bevel gear transmission principle, the operation is convenient and fast for operators to operate and control;
with reference to fig. 9, 10, 12 and 15, the elastic positioning assembly is disposed on one of the turning mechanisms 6 and connected to the transmission assembly, specifically: elastic locating component includes positioning gear 706, location inner ring 707, pull rod 708, positioning spring 709 and semi-ring brace 7010, positioning gear 706 is fixed in location pivot 704 bottom, location inner ring 707 locates L type fixed plate 601 downside and meshes with positioning gear 706 mutually, pull rod 708 and positioning spring 709 all are equipped with two, two pull rods 708 are all fixed in location inner ring 707 top, two pull rods 708 all activity run through L type fixed plate 601 and upwards extend, two positioning spring 709 are all fixed in between L type fixed plate 601 bottom and location inner ring 707 top, two positioning spring 709 overlap respectively and locate two pull rod 708 circumferential surfaces, semi-ring brace 7010 is fixed in two pull rod 708 tops, wherein:
the semi-ring brace 7010 is pulled upwards, the positioning gear 706 is separated from the positioning inner toothed ring 707, the operating hand wheel 7011 is then rotated, the operating table 3 is finally driven to turn over 180 degrees, and after the positioning gear 706 is reset based on the elastic acting force of the positioning spring 709, the positioning gear 706 is meshed with the positioning inner toothed ring 707;
in this embodiment: realize the 3 backs of upset of operation panel through rotating operation hand wheel 7011, if not when adjusting four groups rotation supporting component to the position of supporting operation panel 3 fast, then can lead to turning on one's side of operation panel 3, consequently the aforesaid setting is convenient for lock the location pivot 704 fast and make it no longer rotate, then high efficiency makes operation panel 3 can not turn on one's side, then adjust four groups rotation supporting component of readjustment, make its good bearing to operation panel 3, pull up semi-ring brace 7010, make location gear 706 and location internal tooth ring 707 separate, operation hand wheel 7011 is in rotatable state this moment, then rotate operation hand wheel 7011, finally drive operation panel 3 upset 180, what need explain: the operation table 3 is driven to turn over by 180 degrees, the positioning gear 706 is meshed with the positioning inner gear ring 707, the arrangement is realized by reasonably setting the tooth numbers of the positioning gear 706 and the positioning inner gear ring 707, when the semi-ring brace 7010 is pulled up, the semi-ring brace and the operation hand wheel 7011 are not in the same plane, and the other important function is explained in embodiment 2;
referring to fig. 1, 2, 3, 4 and 5, the bidirectional clamping mechanism 9 has two groups, the two groups of bidirectional clamping mechanisms 9 are symmetrically arranged, each group of bidirectional clamping mechanisms 9 has a plurality of groups, and the groups of bidirectional clamping mechanisms 9 are transversely arranged at equal intervals;
referring to fig. 3, 4, 6 and 7, a plurality of lower clamping fixing plates 904 are fixed at the bottom of the console 3 at equal intervals, and the lower clamping fixing plates 904 are arranged to cooperate with the lower sliding assembly;
each group of bidirectional clamping mechanisms 9 is composed of a mounting assembly, an extrusion assembly, an upper sliding assembly, an upper clamping fixing plate 9010, a sliding connection assembly and a lower sliding assembly, and is explained as follows:
referring to fig. 2 and 3, the mounting assembly is disposed on the top of the console 3, specifically: each group of mounting assemblies comprises two screw bases 902, and the two screw bases 902 are fixed at the top of the operating platform 3;
referring to fig. 2, 3 and 4, the extrusion assemblies are arranged on the mounting assembly and in threaded fit with the mounting assembly, each group of extrusion assemblies comprises a screw 901 and an extrusion gear 903, two screw bases 902 are respectively provided with a thread groove matched with the screw 901, the screw 901 is in threaded fit with the two screw bases 902 through the thread grooves, and the extrusion gear 903 is fixed at one end of the screw 901;
in this embodiment: the screw seat 902 is used for installing a screw 901, the two screw seats 902 can well support the screw 901 and rotate the extrusion gear 903, the screw 901 can drive the extrusion gear 903 to rotate and simultaneously make linear motion because the screw seat 902 is fixed, and the screw 901 and the extrusion gear 903 can move towards the outer side or the inner side by controlling the steering of the extrusion gear 903;
referring to fig. 2, fig. 3, fig. 4 and fig. 5, the upper sliding assembly is slidably disposed on the operating platform 3 and located at one side of the extruding assembly, specifically: each group of upper sliding components comprises an upper clamping moving plate 9011, an inverted T-shaped sliding block 9012, an upper clamping guide rod 9013 and an upper clamping spring 9014, two groups of inverted T-shaped sliding grooves 301 are symmetrically formed in the top of the operating platform 3, a plurality of groups of inverted T-shaped sliding grooves 301 are formed in each group, the plurality of groups of inverted T-shaped sliding grooves 301 are arranged at equal intervals, two inverted T-shaped sliding grooves 301 are formed in each group, two inverted T-shaped sliding blocks 9012 and two upper clamping guide rods 9013 are arranged, the upper clamping moving plate 9011 is arranged on one side of the screw 901, the two inverted T-shaped sliding blocks 9012 are symmetrically fixed to the bottom of the upper clamping moving plate 9011, the two inverted T-shaped sliding blocks 9012 are respectively arranged in the two inverted T-shaped sliding grooves 301 in a sliding mode, each upper clamping guide rod 9013 is fixed between two side walls of the inverted T-shaped sliding grooves 301, the upper clamping guide rods 9013 movably penetrate through the inverted T-shaped sliding blocks 9012 and are in sliding fit with the upper clamping springs 9014 are fixed between two side walls of the inverted T-shaped sliding grooves 301, an upper clamping spring 9014 is movably sleeved on the circumferential surface of the upper clamping guide rod 9013, and an upper clamping moving plate 9011 and an upper clamping fixing plate 9010 are matched with each other to realize upper clamping;
in this embodiment: the inverted-T-shaped sliding block 9012 slides in the inverted-T-shaped sliding groove 301, so that the sliding of the upper clamping moving plate 9011 can be realized, the upper clamping moving plate 9011 can stably slide under the guiding action of the upper clamping guide rod 9013, the reset of the upper clamping moving plate 9011 can be realized under the action of the upper clamping spring 9014, and when the upper clamping moving plate 9011 is not extruded by the screw 901 any more, the reset of the upper clamping moving plate 9011 can be realized through the upper clamping spring 9014;
referring to fig. 1, 3 and 5, an upper clamping fixing plate 9010 is fixed to the top of the console 3 and located on one side of the upper sliding assembly, and the upper sliding assembly cooperates with the upper clamping fixing plate 9010 to realize upper clamping;
in this embodiment: fig. 1 is an initial state, an upper clamping fixing plate 9010 and an upper clamping moving plate 9011 are located at the top of the operating table 3 in the initial state, so that clamping between the upper clamping fixing plate 9010 and the upper clamping moving plate 9011 is called as upper clamping, and since the upper clamping moving plate 9011 can gradually approach to the upper clamping fixing plate 9010 under the extrusion of the screw 901, a workpiece to be processed can be clamped;
referring to fig. 3 and 4, the sliding connection assembly is slidably disposed on the operating platform 3 and located at the other side of the extrusion assembly, specifically: each small group of sliding connection components is provided with a lower clamping connection plate 905, a lower clamping slide block 906, lower clamping guide rods 908 and lower clamping springs 909, the top of the operating platform 3 is symmetrically provided with two groups of rectangular sliding holes 302, each large group of rectangular sliding holes 302 is provided with a plurality of small groups, the plurality of small groups of rectangular sliding holes 302 are arranged at equal intervals, each small group of rectangular sliding holes 302 is provided with two lower clamping connection plates 905 arranged at one side of the extrusion gear 903, the lower clamping slide block 906 and the lower clamping guide rods 908 are provided with two groups, the two lower clamping guide rods 908 are symmetrically fixed at the bottom of the lower clamping connection plate 905, the two lower clamping slide blocks 906 are respectively arranged in the two rectangular sliding holes 302 in a sliding manner, each lower clamping guide rod 908 is fixed between two side walls of the rectangular sliding hole 302, the lower clamping guide rods movably penetrate through the lower clamping slide block 906 and are in sliding fit with the lower clamping slide block 906, the lower clamping springs 909 are fixed between two side walls of the lower clamping slide block 906 and the rectangular sliding hole 302, the lower clamping spring 909 is movably sleeved on the circumferential surface of the lower clamping guide rod 908;
in this embodiment: the lower clamping connecting plate 905 is pressed by the pressing gear 903, so that the lower clamping sliding block 906 can slide in the rectangular sliding hole 302, the lower clamping connecting plate 905 can stably slide under the guiding action of the lower clamping guide rod 908, the lower clamping spring 909 is used for conveniently resetting the lower clamping connecting plate 905, and when the pressing gear 903 does not press the lower clamping connecting plate 905 any more, the lower clamping connecting plate 905 can be reset through the lower clamping spring 909;
referring to fig. 1, 3 and 4, the lower sliding assembly is disposed on the sliding connection assembly and located at the bottom of the operating platform 3, each group of lower sliding assemblies includes a lower clamping moving plate 907, the lower clamping moving plate 907 is located at the bottom of the two lower clamping sliders 906 and located at the bottom of the operating platform 3, and the lower clamping moving plate 907 and the lower clamping fixing plate 904 are matched with each other to realize lower clamping;
wherein: each lower clamping fixing plate 904 is respectively positioned between the two small groups of lower sliding components and is matched with the two small groups of lower sliding components to realize lower clamping;
in this embodiment: fig. 1 is an initial state, the lower clamping fixing plate 904 and the lower clamping moving plate 907 are located at the bottom of the operating table 3 in the initial state, so that clamping between the lower clamping fixing plate 904 and the lower clamping moving plate 907 is called lower clamping, since the lower clamping connecting plate 905 can be gradually close to the lower clamping fixing plate 904 under the extrusion of the extrusion gear 903, and finally the lower clamping moving plate 907 is gradually close to the lower clamping fixing plate 904, so that a workpiece to be processed can be clamped, and here two groups of lower clamping moving plates 907 are gradually close to one group of lower clamping fixing plate 904, so that two groups of workpieces to be processed can be clamped simultaneously, and the number of clamping is large to realize high efficiency;
referring to fig. 2 and 3, a driving mechanism 8 is disposed on the operating platform 3, the driving mechanism 8 is connected to two large groups of bidirectional clamping mechanisms 9 at the same time, and is used for driving the two large groups of bidirectional clamping mechanisms 9 to realize upper clamping or lower clamping, the driving mechanism 8 is composed of a matching component, a mounting seat 805, a pulling component, a magnetic sliding component and a magnetic limiting component, and the details are as follows:
with continued reference to fig. 2 and 3, the matching assembly is disposed on the upper side of the console 3 and is respectively matched with the two groups of driving mechanisms 8, specifically: the matching assembly comprises a first rack 801, a second rack 802 and a connecting strip 803, wherein the teeth of the first rack 801 are arranged downwards, the first rack 801 is arranged at the upper side of one large group of extrusion gears 903 and is meshed with the first rack, the teeth of the second rack 802 are arranged upwards, the second rack 802 is arranged at the lower side of the other large group of extrusion gears 903 and is meshed with the second rack, two connecting strips 803 are arranged, and the first rack 801 and the second rack 802 are fixed through the two connecting strips 803;
in this embodiment: through the arrangement of the first rack 801 and the second rack 802, based on the gear-rack meshing principle, the two groups of extrusion gears 903 can be respectively rotated, and simultaneously the two groups of extrusion gears 903 respectively make linear motion along the tooth direction tracks of the first rack 801 and the second rack 802, so that the two groups of extrusion gears 903 are finally far away from each other or close to each other, when the two groups of extrusion gears 903 are far away from each other, the two groups of screws 901 respectively extrude the two groups of upper clamping moving plates 9011, and then the two groups of screws 901 are matched with the upper clamping fixing plates 9010 to realize upper clamping; when the two large groups of extrusion gears 903 approach each other, the two large groups of extrusion gears 903 respectively extrude the two large groups of lower clamping connecting plates 905, so that the two large groups of lower clamping moving plates 907 gradually approach one group of lower clamping fixing plates 904, and finally the two large groups of extrusion gears are matched with the lower clamping fixing plates 904 to realize lower clamping;
referring to fig. 2, there are two mounting seats 805, and the two mounting seats 805 are symmetrically fixed at two side edges of the top of the console 3;
referring to fig. 3, two sets of drawing assemblies are provided, the two sets of drawing assemblies are respectively slidably engaged with the two mounting seats 805 and connected with the engaging assembly, specifically: each group of drawing components comprises a rectangular sliding block 804 and a handle 806, the rectangular sliding block 804 is fixed at the outer end of the connecting bar 803 and is in sliding fit with the mounting seat 805, the outer end of the rectangular sliding block 804 extends to the outer side of the mounting seat 805, and the handle 806 is fixed at the outer end of the rectangular sliding block 804;
in this embodiment: through the sliding fit between the drawing component and the mounting seat 805, the first rack 801 and the second rack 802 can be smoothly and linearly drawn conveniently;
referring to fig. 2, 9, 10, 11, 12 and 13, two sets of locking assemblies are provided, and the two sets of locking assemblies are respectively in threaded engagement with the two mounting seats 805 to fix the drawing assembly, specifically: each group of locking components comprises a positioning nut 807, and the positioning nut 807 is arranged on the mounting seat 805 in a threaded manner;
in this embodiment: after the centre gripping or lower centre gripping were gone up in the completion, if rectangle slider 804 takes place to slide, then can lead to the work piece of treating of centre gripping to drop, through the aforesaid setting, can make rectangle slider 804 no longer slide fast, what need explain is: a retaining nut 807 is provided at the sliding location of the rectangular sliding block 804 and the mounting seat 805, and its end can abut against the rectangular sliding block 804.
Example 2:
embodiment 1 after the upset, when carrying out down centre gripping, go up centre gripping and the good work piece of welding then can drop, consequently need collect it, and the like, after the upset again, when carrying out last centre gripping, the good work piece of lower centre gripping and welding then can drop again, and here also needs collect it, how to realize automatic and separately collecting, and embodiment 2 further optimizes on embodiment 1's basis:
referring to fig. 1 to 15, a collecting mechanism 5 is disposed on the base 1 and under the operating platform 3 for collecting the upper clamped or the lower clamped workpiece;
a signal transmission mechanism 11, which is arranged on the positioning mechanism 7 and is used for signal transmission;
the vibration sensor 10 is arranged on the material collecting mechanism 5 and is used for carrying out signal transmission; and
the PLC 2 is arranged on one special-shaped supporting leg 401 and is in signal connection with the material collecting mechanism 5, the vibration sensor 10 and the signal transmission mechanism 11, and an interval driving program is arranged in the PLC 2;
wherein:
the aggregate mechanism 5 includes:
first aggregate subassembly, it is used for collecting the work piece of centre gripping, specifically: the first material collecting assembly comprises two first material collecting grooves 501, two U-shaped connecting plates 502 and two first electric cylinders 503, the two first material collecting grooves 501 are respectively positioned at the lower sides of two groups of upper clamping fixing plates 9010 and upper clamping moving plates 9011, the number of the U-shaped connecting plates 502 is two, the two U-shaped connecting plates 502 are respectively fixed between the side ends of the two first material collecting grooves 501, at least two first electric cylinders 503 are arranged, and at least two first electric cylinders 503 are fixed between the bottom of the U-shaped connecting plates 502 and the top of the base 1;
the second subassembly that gathers materials, it is used for collecting the work piece of centre gripping down, specific: the second aggregate component comprises a second aggregate groove 505 and second electric cylinders 506, the second aggregate groove 505 is fixed at the lower sides of the plurality of lower clamping fixing plates 904, at least two second electric cylinders 506 are arranged, and at least two second electric cylinders 506 are fixed between the bottom of the second aggregate groove 505 and the top of the base 1;
in this embodiment: collect last centre gripping and the good work piece of welding as needs, only need drive first electric jar 503 can, collect down centre gripping and the good work piece of welding as needs, only need drive second electric jar 506 can, consequently need realize the automatic flexible of first electric jar 503 and second electric jar 506, as follows the explanation:
the first material collecting component and the second material collecting component are lifted based on the signals transmitted by the signal transmission mechanism 11 and matched with an interval driving program;
the first aggregate component and the second aggregate component realize the descent based on the signal transmitted by the vibration sensor 10, specifically: the signal transmission mechanism 11 comprises a wireless signal transceiver module 1101 and a wireless signal transmitting module 1102, the wireless signal transceiver module 1101 is fixed on an operating hand wheel 7011, the wireless signal transmitting module 1102 is fixed on a half-ring brace 7010, the operating hand wheel 7011 is initially in a contact state with the half-ring brace 7010, after the operating table 3 is driven to turn over by 180 degrees, the operating hand wheel 7011 is still initially in the contact state with the half-ring brace 7010, and after the operating hand wheel 7011 is separated from the half-ring brace 7010 and then is in contact with the half-ring brace 7010, signals are transmitted to the PLC controller 2;
in this embodiment: when the half-ring brace 7010 is pulled upwards, the wireless signal transmitting module 1102 is separated from the wireless signal receiving and transmitting module 1101, then the operating handwheel 7011 is rotated to finally drive the operating platform 3 to overturn for 180 degrees, the half-ring brace 7010 resets under the elastic action of the positioning spring 709, at the moment, the wireless signal transmitting module 1102 is contacted and attached with the wireless signal receiving and transmitting module 1101 again, then an electric signal is generated, the electric signal is transmitted into the PLC 2, an interval driving program arranged in the PLC 2 can brake, and the idea of the interval driving program is as follows: a. after the wireless signal transmitting module 1102 and the wireless signal receiving and transmitting module 1101 are separated for the first time and contacted and attached again, the first electric cylinder 503 is automatically braked to extend for M seconds, and the first material collecting groove 501 is conveyed to the lower sides of the two groups of upper clamping fixing plates 9010 and upper clamping moving plates 9011; b. after the wireless signal transmitting module 1102 and the wireless signal receiving and transmitting module 1101 are separated for the second time and contacted and attached again, the second electric cylinder 506 is automatically braked to extend for M seconds, and the second material collecting groove 505 is conveyed to the lower sides of the lower clamping fixing plate 904 and the two groups of lower clamping moving plates 907; the a and the b are executed in a circulating way, the lifting of the material collecting mechanism 5 is necessary, and the operation table 3 needs to be turned, so that a space required by turning exists, and the space has a certain height, so that the material collecting mechanism 5 is collected after being lifted, and the clamped and welded workpiece can be effectively prevented from being broken;
three groups of vibration sensors 10 are arranged, the three groups of vibration sensors 10 are respectively embedded in a second material collecting groove 505 and two first material collecting grooves 501, a plurality of vibration sensors 10 are arranged in each group, the plurality of vibration sensors 10 are arranged at equal intervals, and protective cotton 504 is paved in the second material collecting groove 505 and the two first material collecting grooves 501;
when the vibration signal is greater than the vibration threshold set by the vibration sensor 10, the vibration sensor 10 transmits the signal;
in this embodiment: the clamped and welded workpiece will vibrate to a certain extent when falling off, this embodiment utilizes this characteristic to reset the corresponding aggregate assembly, the upper clamped and welded workpiece will fall down and finally fall into the two first aggregate troughs 501, and will vibrate during falling, wherein two sets of vibration sensors 10 will sense the vibration and generate corresponding vibration signals, and transmit the vibration signals to the PLC controller 2, the PLC controller 2 will automatically control at least two first electric cylinders 503 to shorten and reset, and then complete the upper clamping and collection, and similarly, the lower clamped and welded workpiece will fall down and finally fall into the second aggregate trough 505, and will vibrate during falling, the other set of vibration sensors 10 will sense the vibration and generate corresponding vibration signals, and transmit the vibration signals to the PLC controller 2, and the controller 2 will automatically control at least two second electric cylinders 506 to shorten and reset, then accomplish down the centre gripping and collect, through the aforesaid setting for first subassembly and the second subassembly that gathers materials separately operates, if set up synchronous operation with it, then can waste a large amount of electric energy, and this embodiment can reach energy-conserving effect, and protection cotton 504 not only can effectively protect vibration sensor 10, still can effectively protect the work piece that drops simultaneously.
Example 3:
a working method of a clamping mechanism of a reversible laser welding machine comprises the following steps:
s1, upper clamping: sequentially unscrewing two positioning nuts 807, sequentially placing a plurality of identical workpieces to be processed between two groups of upper clamping fixing plates 9010 and upper clamping moving plates 9011, pulling handles 806 outwards, driving a first rack 801 and a second rack 802 to do linear motion through a rectangular sliding block 804 and a connecting strip 803, respectively driving two groups of extrusion gears 903 to rotate and respectively move outwards along the tooth-direction tracks of the first rack 801 and the second rack 802 based on the meshing transmission between the two groups of extrusion gears 903 and the first rack 801 and the second rack 802, respectively driving the two groups of extrusion gears 903 to rotate and respectively move outwards, respectively driving two groups of screws 901 to rotate and move outwards, and then gradually extruding the two groups of upper clamping moving plates 9011 and driving the two groups of upper clamping fixing plates 9010 to be close to the upper clamping fixing plates 9010 until the workpieces to be processed are clamped upwards;
s2, clamping and fixing: the two positioning nuts 807 are screwed in sequence, the handle 806 cannot be pulled at the moment, and clamping and fixing are finally realized;
s3, primary inversion: welding the upper clamped workpiece to be processed, after the welding is finished, rotating a poke rod 406 to realize the rotation of a support rotating shaft 403, finally rotating a plurality of support hemispheres 405 to be parallel to the transverse central axis of a first support flat plate 402, executing the operation as above, sequentially rotating four groups of rotary support assemblies to enable the rotary support assemblies not to support an operation table 3 and not to prevent the operation table 3 from overturning, pulling up a half ring brace 7010 to enable a positioning gear 706 to be separated from a positioning inner toothed ring 707, then rotating an operation hand wheel 7011 to finally drive the operation table 3 to overturn by 180 degrees, not pulling up the half ring brace 7010, after the positioning gear 706 is reset based on the elastic acting force of a positioning spring 709, meshing the positioning gear 706 with the positioning inner toothed ring 707, then contacting the wireless signal transceiver module 1101 with the wireless signal transmitting module 1102 again to transmit signals, and driving at least two first electric cylinders 503 to extend by an interval driving program arranged in the PLC 2, then, the two first material collecting grooves 501 are sent to the lower sides of the two groups of upper clamping moving plates 9011 and upper clamping fixing plates 9010 which are turned over;
s4, collecting by lower clamping and upper clamping: a plurality of identical workpieces to be processed are sequentially placed between a plurality of lower clamping fixing plates 904 and two groups of lower clamping moving plates 907 after being turned over, two positioning nuts 807 are sequentially unscrewed, handles 806 are pushed inwards, then a first rack 801 and a second rack 802 are driven to do linear motion through a rectangular sliding block 804 and a connecting strip 803, based on the meshing transmission between the two groups of extrusion gears 903 and the first rack 801 and the second rack 802 respectively, the two groups of extrusion gears 903 are driven to rotate and move inwards along the tooth-direction tracks of the first rack 801 and the second rack 802 respectively, the two groups of extrusion gears 903 are driven to rotate and move inwards, the two groups of screws 901 are driven to rotate and move inwards respectively, then the two groups of lower clamping connecting plates 905 are gradually extruded, finally, the two groups of lower clamping moving plates 907 are gradually extruded and driven to be close to the lower clamping fixing plates 904 until the workpieces to be processed are clamped downwards, meanwhile, the workpieces clamped and welded at the upper part are not clamped any more, then fall downwards and finally fall into the two first material collecting grooves 501, vibration occurs in the falling process, the two groups of vibration sensors 10 sense the vibration and generate corresponding vibration signals, the vibration signals are transmitted into the PLC controller 2, the PLC controller 2 automatically controls the at least two first electric cylinders 503 to shorten and reset, then upper clamping collection is completed, and then the step S2 is continuously executed, so that clamping and fixing are completed;
s5, rotating and supporting: rotating the poke rod 406 to realize the rotation of the support rotating shaft 403, finally realizing the contact of the tops of the plurality of support hemispheres 405 with the bottom of the operating platform 3, and sequentially rotating the four groups of rotating support assemblies to support the operating platform 3;
s6, secondary overturning: welding the workpiece to be processed clamped at the lower part, after the welding is finished, rotating the poke rod 406 to finally enable the plurality of supporting hemispheres 405 not to support the operating platform 3 any more, sequentially rotating the four groups of rotating supporting components to enable the rotating supporting components not to support the operating platform 3 any more and not to hinder the rotating of the operating platform, pulling up the semi-ring brace 7010, the positioning gear 706 is separated from the positioning inner gear ring 707, the operating handwheel 7011 is rotated, finally the operating platform 3 is driven to turn over for 180 degrees again, the semi-ring brace 7010 is not pulled upwards, the positioning gear 706 is reset based on the elastic acting force of the positioning spring 709, the positioning gear 706 is meshed with the positioning inner toothed ring 707, at this time, the wireless signal transceiver module 1101 is contacted with the wireless signal transmitting module 1102 again, and then signal transmission is performed, an interval driving program arranged in the PLC controller 2 drives at least two second electric cylinders 506 to extend, and then the second material collecting groove 505 is sent between the lower clamping fixing plate 904 which is turned over and the two groups of lower clamping moving plates 907;
s7, collecting by upper clamping and lower clamping: and step S1 is executed, then the upper clamping is realized again, in the process of the upper clamping, the workpiece clamped and welded at the lower part is not clamped any more, then drops downwards, finally drops into the second material collecting groove 505, and vibrates in the process of dropping, the other group of vibration sensors 10 sense the vibration and generate corresponding vibration signals, and transmit the vibration signals into the PLC controller 2, and the PLC controller 2 automatically controls at least two second electric cylinders 506 to shorten and reset, and then the lower clamping collection is completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a can convertible laser-beam welding machine clamping mechanism which characterized in that includes:
a base (1);
the operating platform (3) is arranged on the upper side of the base (1);
the supporting mechanism (4) is arranged between the base (1) and the operating platform (3) and supports the operating platform (3) in an adjustable mode to increase stability;
the turnover mechanism (6) is arranged on the supporting mechanism (4), is in running fit with the operating platform (3) and is used for turning over the operating platform (3);
the positioning mechanism (7) is arranged on the turnover mechanism (6) and used for adjusting the turnover of the turnover mechanism (6);
the bidirectional clamping mechanisms (9) are provided with two groups, the two groups of bidirectional clamping mechanisms (9) are symmetrically arranged, each group of bidirectional clamping mechanisms (9) is provided with a plurality of groups, and the groups of bidirectional clamping mechanisms (9) are transversely arranged at equal intervals; and
the driving mechanism (8) is arranged on the operating platform (3), is simultaneously connected with the two groups of bidirectional clamping mechanisms (9), and is used for driving the two groups of bidirectional clamping mechanisms (9) to realize upper clamping or lower clamping;
a plurality of lower clamping fixing plates (904) are arranged at the bottom of the operating table (3) at equal intervals;
each subgroup of said bidirectional gripping means (9) comprising:
the mounting assembly is arranged at the top of the operating platform (3);
the extrusion assembly is arranged on the mounting assembly and is in threaded fit with the mounting assembly;
the upper sliding assembly is arranged on the operating table (3) in a sliding manner and is positioned on one side of the extrusion assembly;
the upper clamping fixing plate (9010) is arranged at the top of the operating platform (3) and located on one side of the upper sliding assembly, and the upper sliding assembly is matched with the upper clamping fixing plate (9010) to realize upper clamping;
the sliding connection assembly is arranged on the operating table (3) in a sliding mode and is positioned on the other side of the extrusion assembly; and
the lower sliding assembly is arranged on the sliding connection assembly and is positioned at the bottom of the operating table (3);
wherein: each lower clamping fixing plate (904) is respectively positioned between the two small groups of lower sliding components and is matched with the two small groups of lower sliding components to realize lower clamping;
each group of mounting assemblies comprises two screw bases (902), and the two screw bases (902) are arranged at the top of the operating platform (3);
each small group of the extrusion components comprises a screw (901) and an extrusion gear (903), the two screw seats (902) are respectively provided with a thread groove matched with the screw (901), the screw (901) is in threaded fit with the two screw seats (902) through the thread grooves, and the extrusion gear (903) is arranged at one end part of the screw (901);
each group of upper sliding assemblies comprises an upper clamping moving plate (9011), inverted T-shaped sliding blocks (9012), an upper clamping guide rod (9013) and an upper clamping spring (9014), two groups of inverted T-shaped sliding grooves (301) are symmetrically formed in the top of the operating platform (3), each group of inverted T-shaped sliding grooves (301) is provided with a plurality of groups, the inverted T-shaped sliding grooves (301) are equidistantly arranged in each group, two inverted T-shaped sliding grooves (301) are arranged in each group, the inverted T-shaped sliding blocks (9012) and the upper clamping guide rods (9013) are respectively arranged in the two inverted T-shaped sliding grooves (301), the upper clamping moving plate (9011) is arranged on one side of the screw rod (901), the two inverted T-shaped sliding blocks (9012) are symmetrically arranged at the bottom of the upper clamping moving plate (9011), the two inverted T-shaped sliding blocks (9012) are respectively arranged in the two inverted T-shaped sliding grooves (301), and two side walls of each upper clamping guide rod (9013) are arranged between the inverted T-shaped sliding grooves (301), the upper clamping guide rod (9013) movably penetrates through the inverted T-shaped sliding block (9012) and is in sliding fit with the inverted T-shaped sliding block, upper clamping springs (9014) are arranged between two side ends of the inverted T-shaped sliding block (9012) and two side walls of the inverted T-shaped sliding chute (301), the upper clamping springs (9014) are movably sleeved on the circumferential surface of the upper clamping guide rod (9013), and the upper clamping moving plate (9011) and the upper clamping fixing plate (9010) are matched with each other to achieve upper clamping;
each group of sliding connection assembly comprises a lower clamping connection plate (905), a lower clamping sliding block (906), a lower clamping guide rod (908) and a lower clamping spring (909), two groups of rectangular sliding holes (302) are symmetrically formed in the top of the operating platform (3), each group of rectangular sliding holes (302) are provided with a plurality of groups, the rectangular sliding holes (302) are equidistantly arranged in the plurality of groups, two rectangular sliding holes (302) are arranged in each group, the lower clamping connection plate (905) is arranged on one side of the extrusion gear (903), two lower clamping sliding blocks (906) and two lower clamping guide rods (908) are arranged, the two lower clamping guide rods (908) are symmetrically arranged at the bottom of the lower clamping connection plate (905), the two lower clamping sliding blocks (906) are respectively arranged in the two rectangular sliding holes (302) in a sliding mode, and each lower clamping guide rod (908) is arranged between two side walls of the rectangular sliding holes (302), the lower clamping guide rod (908) movably penetrates through the lower clamping sliding block (906) and is in sliding fit with the lower clamping sliding block, lower clamping springs (909) are arranged between two side ends of the lower clamping sliding block (906) and two side walls of the rectangular sliding hole (302), and the lower clamping springs (909) are movably sleeved on the circumferential surface of the lower clamping guide rod (908);
each subgroup of the lower sliding assemblies comprises a lower clamping moving plate (907), the lower clamping moving plate (907) is arranged at the bottoms of the two lower clamping sliding blocks (906) and is positioned at the bottom of the operating table (3), and the lower clamping moving plate (907) and the lower clamping fixing plate (904) are matched with each other to realize lower clamping.
2. A reversible laser welder clamping mechanism according to claim 1, characterized in that the driving mechanism (8) comprises:
the matching assembly is arranged on the upper side of the operating platform (3) and is respectively matched with the two groups of driving mechanisms (8);
two mounting seats (805) are arranged, and the two mounting seats (805) are symmetrically arranged at the edges of two sides of the top of the operating platform (3);
the two groups of drawing components are respectively matched with the two mounting seats (805) in a sliding manner and connected with the matching components;
and two groups of locking assemblies are arranged, are respectively in threaded fit with the two mounting seats (805), and are used for realizing the fixation of the drawing assembly.
3. A convertible laser welder clamping mechanism according to claim 2, characterized in that the mating components comprise a first rack (801), a second rack (802), and a connecting strip (803), the teeth of the first rack (801) are arranged downward, the first rack (801) is arranged at the upper side of one of the large groups of the extrusion gears (903) and is meshed therewith, the teeth of the second rack (802) are arranged upward, the second rack (802) is arranged at the lower side of the other large group of the extrusion gears (903) and is meshed therewith, the connecting strip (803) is provided with two, and the first rack (801) and the second rack (802) are connected by the two connecting strips (803);
each group of drawing assemblies comprises a rectangular sliding block (804) and a handle (806), the rectangular sliding block (804) is arranged at the outer side end of the connecting bar (803) and is in sliding fit with the mounting seat (805), the outer side end of the rectangular sliding block (804) extends to the outer side of the mounting seat (805), and the handle (806) is arranged at the outer side end of the rectangular sliding block (804);
each group of locking assemblies comprises a positioning nut (807), and the positioning nut (807) is arranged on the mounting seat (805) in a threaded mode.
4. A convertible laser welder clamping mechanism according to claim 3, characterized in that there are two sets of the supporting mechanisms (4), and the two sets of the supporting mechanisms (4) are symmetrically arranged between the base (1) and the operating platform (3), wherein each set of the supporting mechanisms (4) comprises:
the fixed supporting component is arranged at the top of the base (1); and
the two groups of rotating support assemblies are symmetrically arranged on the fixed support assembly;
the two groups of turnover mechanisms (6) are arranged, and the two groups of turnover mechanisms (6) are respectively arranged on the two groups of fixed supporting components and are in rotating fit with the operating table (3);
the positioning mechanism (7) comprises:
the transmission assembly is arranged on one group of the turnover mechanisms (6); and
and the elastic positioning assembly is arranged on one group of the turnover mechanisms (6) and is connected with the transmission assembly.
5. A clamping mechanism of a reversible laser welding machine according to claim 4, characterized in that each group of the fixed supporting components comprises two special-shaped supporting feet (401) and a first supporting flat plate (402), the two special-shaped supporting feet (401) are arranged, the two first supporting flat plates (402) are arranged on the top of the base (1), and the first supporting flat plate (402) is arranged on the top of the two special-shaped supporting feet (401);
every group the rotation support subassembly all includes support pivot (403), second support flat board (404), support hemisphere (405) and poker rod (406), support pivot (403) and rotate and locate first support flat board (402) top edge, second support flat board (404) are located support pivot (403) top, it is equipped with a plurality ofly, a plurality of to support hemisphere (405) equidistance is located the second supports flat board (404) top, and is a plurality of support hemisphere (405) top with operation panel (3) bottom contacts, poker rod (406) are located support pivot (403) are last, wherein:
the supporting rotating shaft (403) is positioned at the outer side of the side end of the operating platform (3), the poke rod (406) is arranged outwards along the transverse central axis of the second supporting flat plate (404), and when the second supporting flat plate (404) and the poke rod (406) rotate to the horizontal position, the poke rod is positioned at the outer side of the side end of the operating platform (3);
each group of turnover mechanism (6) comprises an L-shaped fixing plate (601) and a turnover rotating shaft (602), the L-shaped fixing plate (601) is arranged at the outer end part of the first supporting flat plate (402), one end of the turnover rotating shaft (602) is rotatably arranged on the side wall, close to the operating table (3), of the L-shaped fixing plate (601), and the other end of the turnover rotating shaft (602) is connected with the side end of the operating table (3);
the transmission assembly comprises a second bevel gear (703), a positioning rotating shaft (704), a first bevel gear (705) and an operating hand wheel (7011), the positioning rotating shaft (704) is rotatably arranged on the longitudinal side wall of the L-shaped fixing plate (601), the bottom of the positioning rotating shaft (704) rotatably penetrates through the L-shaped fixing plate (601) and extends downwards, the first bevel gear (705) is arranged at the top of the positioning rotating shaft (704), the second bevel gear (703) is arranged on the circumferential surface of the overturning rotating shaft (602) and is meshed with the first bevel gear (705), and the operating hand wheel (7011) is arranged on the circumferential surface of the positioning rotating shaft (704) and is positioned on the upper side of the longitudinal side wall of the L-shaped fixing plate (601);
the elastic positioning assembly comprises a positioning gear (706), a positioning inner toothed ring (707), two pull rods (708), two positioning springs (709) and a semi-ring brace (7010), the positioning gear (706) is arranged at the bottom of the positioning rotating shaft (704), the positioning inner toothed ring (707) is arranged at the lower side of the L-shaped fixing plate (601) and is meshed with the positioning gear (706), the two pull rods (708) and the two positioning springs (709) are respectively arranged at the top of the positioning inner toothed ring (707), the two pull rods (708) movably penetrate through the L-shaped fixing plate (601) and extend upwards, the two positioning springs (709) are respectively arranged between the bottom of the L-shaped fixing plate (601) and the top of the positioning inner toothed ring (707), and the two positioning springs (709) are respectively sleeved on the circumferential surfaces of the two pull rods (708), the semi-ring brace (7010) is arranged at the top of the two pull rods (708), wherein:
the semi-ring brace (7010) is pulled upwards, the positioning gear (706) is separated from the positioning inner gear ring (707), the operating hand wheel (7011) is rotated, the operating table (3) is finally driven to turn over for 180 degrees, and after the positioning gear (706) is reset based on the elastic acting force of the positioning spring (709), the positioning gear (706) is meshed with the positioning inner gear ring (707).
6. The reversible laser welder clamping mechanism of claim 5, further comprising:
the material collecting mechanism (5) is arranged on the base (1) and positioned on the lower side of the operating platform (3) and is used for collecting the workpieces clamped up or down;
the signal transmission mechanism (11) is arranged on the positioning mechanism (7) and is used for carrying out signal transmission;
the vibration sensor (10) is arranged on the material collecting mechanism (5) and is used for carrying out signal transmission; and
the PLC (2) is arranged on one of the special-shaped supporting legs (401) and is in signal connection with the material collecting mechanism (5), the vibration sensor (10) and the signal transmission mechanism (11), and an interval driving program is arranged in the PLC (2);
wherein:
the aggregate mechanism (5) comprises:
the first material collecting component is used for collecting the upper clamped workpiece; and
the second material collecting component is used for collecting the lower clamped workpiece; wherein:
the first material collecting component and the second material collecting component are used for realizing ascending based on the signal transmitted by the signal transmission mechanism (11) and matched with an interval driving program;
the first and second aggregate components effect a drop based on the signal transmitted by the vibration sensor (10).
7. The clamping mechanism of a reversible laser welding machine according to claim 6, characterized in that the signal transmission mechanism (11) comprises a wireless signal transceiver module (1101) and a wireless signal transmitting module (1102), the wireless signal transceiver module (1101) is arranged on the operating handwheel (7011), the wireless signal transmitting module (1102) is arranged on the half-ring brace (7010), the operating handwheel (7011) and the half-ring brace (7010) are initially in contact, after the operating platform (3) is driven to turn over 180 degrees, the operating handwheel (7011) and the half-ring brace (7010) are initially still in contact, and after the operating handwheel (7011) and the half-ring brace (7010) are separated and then in contact, a signal is transmitted to the PLC controller (2);
the first material collecting assembly comprises two first material collecting grooves (501), two U-shaped connecting plates (502) and two first electric cylinders (503), the two first material collecting grooves (501) are respectively located on the lower sides of two groups of upper clamping fixing plates (9010) and upper clamping moving plates (9011), the two U-shaped connecting plates (502) are arranged, the two U-shaped connecting plates (502) are respectively arranged between the side ends of the two first material collecting grooves (501), at least two first electric cylinders (503) are arranged, and at least two first electric cylinders (503) are arranged between the bottom of the U-shaped connecting plate (502) and the top of the base (1);
the second material collecting assembly comprises a second material collecting groove (505) and second electric cylinders (506), the second material collecting groove (505) is arranged at the lower side of the lower clamping fixing plates (904), at least two second electric cylinders (506) are arranged, and at least two second electric cylinders (506) are arranged between the bottom of the second material collecting groove (505) and the top of the base (1);
the vibration sensors (10) are provided with three groups, the three groups of vibration sensors (10) are respectively embedded in the second material collecting groove (505) and the two first material collecting grooves (501), each group of vibration sensors (10) is provided with a plurality of vibration sensors, the plurality of vibration sensors (10) are arranged at equal intervals, and protective cotton (504) is paved in the second material collecting groove (505) and the two first material collecting grooves (501);
when the vibration signal is larger than a vibration threshold value set by the vibration sensor (10), the vibration sensor (10) transmits the signal.
8. A working method of a clamping mechanism of a reversible laser welding machine is characterized by being applied to the clamping mechanism of the reversible laser welding machine in claim 7, and comprising the following steps:
s1, upper clamping: sequentially unscrewing two positioning nuts (807), sequentially placing a plurality of identical workpieces to be processed between two groups of upper clamping fixing plates (9010) and upper clamping moving plates (9011), pulling a handle (806) outwards, driving a first rack (801) and a second rack (802) to do linear motion through a rectangular sliding block (804) and a connecting strip (803), respectively driving the two groups of extrusion gears (903) to rotate and respectively move outwards along the tooth direction tracks of the first rack (801) and the second rack (802) based on the meshing transmission between the two groups of extrusion gears (903) and the first rack (801) and the second rack (802), respectively driving two groups of screw rods (901) to rotate and move outwards through the two groups of extrusion gears (903), gradually extruding the two groups of upper clamping moving plates (9011) and driving the two groups of upper clamping moving plates to be close to the upper clamping fixing plates (9010), until the workpiece to be processed is clamped upwards;
s2, clamping and fixing: the two positioning nuts (807) are sequentially screwed, the handle (806) cannot be pulled at the moment, and clamping and fixing are finally realized;
s3, primary inversion: welding the upper clamped workpiece to be processed, after the welding is finished, rotating a poke rod (406) to realize the rotation of a supporting rotating shaft (403), finally rotating a plurality of supporting hemispheres (405) to be parallel to the transverse central axis of a first supporting flat plate (402), executing the operation as above, sequentially rotating four groups of rotating supporting components to ensure that the operating platform (3) is not supported any more and the overturning of the operating platform is not hindered, pulling up a half ring brace (7010) to ensure that a positioning gear (706) is separated from a positioning inner toothed ring (707), then rotating an operating hand wheel (7011), finally driving the operating platform (3) to overturn by 180 degrees and not pulling up the half ring brace (7010), resetting the positioning gear (706) based on the elastic acting force of a positioning spring (709), meshing the positioning gear (706) with the positioning inner toothed ring (707), and then contacting the wireless signal transceiver module (1101) with the wireless signal transmitting module (1102) again, then, signal transmission is carried out, an interval driving program arranged in the PLC (2) drives at least two first electric cylinders (503) to extend, and then the two first material collecting grooves (501) are sent to the lower sides of two groups of upper clamping moving plates (9011) and upper clamping fixing plates (9010) which are overturned;
s4, collecting by lower clamping and upper clamping: a plurality of identical workpieces to be processed are sequentially placed between a plurality of lower clamping fixing plates (904) and two groups of lower clamping moving plates (907) after being turned, two positioning nuts (807) are sequentially unscrewed, a handle (806) is pushed inwards, then a first rack (801) and a second rack (802) are driven to do linear motion through a rectangular sliding block (804) and a connecting strip (803), based on meshing transmission between the two groups of extrusion gears (903) and the first rack (801) and the second rack (802), the two groups of extrusion gears (903) are respectively driven to rotate and move inwards along the tooth tracks of the first rack (801) and the second rack (802), the two groups of extrusion gears (903) respectively drive the two groups of screw rods (901) to rotate and move inwards, then the two groups of lower clamping connecting plates (905) are gradually extruded, and finally the two groups of lower clamping moving plates (907) are gradually extruded, the workpiece to be processed is driven to approach a lower clamping fixing plate (904) until the workpiece to be processed is clamped down, meanwhile, the workpiece which is clamped and welded on the workpiece is not clamped any more, then drops downwards, finally drops into two first material collecting grooves (501), and vibrates in the dropping process, wherein two groups of vibration sensors (10) sense the vibration and generate corresponding vibration signals, and transmit the vibration signals into a PLC (2), the PLC (2) automatically controls at least two first electric cylinders (503) to shorten to reset, then upper clamping collection is completed, and then step S2 is continuously executed to complete clamping and fixing;
s5, rotating and supporting: rotating a poke rod (406) to realize the rotation of the support rotating shaft (403), finally realizing the contact of the tops of a plurality of support hemispheres (405) and the bottom of the operating platform (3), and sequentially rotating four groups of rotating support assemblies to support the operating platform (3);
s6, secondary overturning: welding a workpiece to be processed and clamped downwards, after the welding is finished, rotating a poke rod (406), finally enabling a plurality of supporting hemispheres (405) not to support an operation table (3), sequentially rotating four groups of rotating supporting components to enable the rotating supporting components not to support the operation table (3) and not to hinder the operation table from overturning, pulling up a semi-ring brace (7010), enabling a positioning gear (706) to be separated from a positioning inner toothed ring (707), then rotating an operation hand wheel (7011), finally driving the operation table (3) to overturn for 180 degrees again, not pulling up the semi-ring brace (7010), after the positioning gear (706) is reset based on the elastic acting force of a positioning spring (709), meshing the positioning gear (706) with the positioning inner toothed ring (707), at the moment, enabling a wireless signal transceiver module (1101) to be in contact with a wireless signal transmitting module (1102) again, then carrying out signal transmission, driving at least two second electric cylinders (506) to extend by an interval driving program arranged in a PLC (2), then, a second material collecting groove (505) is sent between the lower clamping fixed plate (904) which is overturned and the two groups of lower clamping moving plates (907);
s7, collecting by upper clamping and lower clamping: and S1 is executed, then the upper clamping is realized again, in the process of the upper clamping, the workpiece clamped and welded at the lower part is not clamped any more, then drops downwards, finally drops into the second material collecting groove (505), and vibrates in the dropping process, the other group of vibration sensors (10) sense the vibration and generate corresponding vibration signals, the vibration signals are transmitted into the PLC (2), and the PLC (2) automatically controls at least two second electric cylinders (506) to shorten to reset, and then the lower clamping collection is completed.
CN202210060893.3A 2022-01-19 2022-01-19 Reversible laser welding machine clamping mechanism and working method thereof Active CN114083127B (en)

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Denomination of invention: A reversible laser welding machine clamping mechanism and its working method

Effective date of registration: 20220907

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