CN113458567A - Side top mechanism and corresponding full-automatic unilateral spot welding machine - Google Patents
Side top mechanism and corresponding full-automatic unilateral spot welding machine Download PDFInfo
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- CN113458567A CN113458567A CN202110903761.8A CN202110903761A CN113458567A CN 113458567 A CN113458567 A CN 113458567A CN 202110903761 A CN202110903761 A CN 202110903761A CN 113458567 A CN113458567 A CN 113458567A
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- stator
- servo indexing
- indexing mechanism
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- positioning
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/02—Pressure butt welding
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The application is 201911260556.3's division application, belong to the spot welder field, a side top mechanism and corresponding full-automatic unilateral spot welder are disclosed, full-automatic unilateral spot welder includes the transfer chain body, the positioning die, servo indexing mechanism, loading system, side top mechanism and feeding mechanism, the positioning die slides and sets up on the transfer chain body, servo indexing mechanism is located the top of the transfer chain body, loading system is located one side of servo indexing mechanism, be used for carrying out the pressure welding to the line ear on the stator, side top mechanism is located the opposite side in order to form the support to servo indexing mechanism, feeding mechanism is used for promoting stator and the servo indexing mechanism in positioning die and the pairing. According to the full-automatic single-side spot welding machine, the side jacking mechanism is arranged, so that when the pressurizing mechanism performs pressurizing welding on the wire lug on the stator, the side jacking mechanism can apply balancing force to the other side of the servo indexing mechanism, equipment can be protected, and the service life of the equipment can be prolonged.
Description
The application is a divisional application of an invention patent with the application number of '201911260556.3', belongs to the field of spot welding machines, and discloses a side jacking mechanism and a corresponding full-automatic single-side spot welding machine.
Technical Field
The invention relates to the field of spot welding machines, in particular to a full-automatic single-side spot welding machine.
Background
The stator of the motor is wound with a coil, the stator wire lug is injection-molded on the stator plastic end cover, poor conduction between the coil and the stator wire lug can cause abnormal motor power and reduced service life, and therefore good conduction between the coil and the wire lug must be ensured in the processing process of the stator. In the industry, a coil is wound on a lug, the lug is deformed and welded on a stator by pressurizing and heating the lug, and meanwhile, a coil varnish is gasified and extruded at high temperature, so that the permanent connection and conduction between the coil and the lug are realized. In the prior art, the lugs on a plurality of stators are not distributed on the periphery of the stators in an opposite mode, so that the lugs need to be subjected to spot welding one by one, but the spot welding operation is performed from one side, and due to unbalanced stress, parts of spot welding equipment are easy to damage after the spot welding equipment becomes long.
Therefore, it is necessary to provide a fully automatic single-side spot welding machine to solve the above technical problems.
Disclosure of Invention
The invention provides a full-automatic single-side spot welding machine, which is provided with a side jacking mechanism, so that when a pressurizing mechanism pressurizes and welds a lug on a stator, the side jacking mechanism can apply a balancing force to the other side of a servo indexing mechanism, equipment can be protected, the service life of the equipment is prolonged, and the problem that parts of the spot welding equipment are easily damaged due to unbalanced stress and long-term use when the spot welding machine in the prior art performs spot welding operation from one side is solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: a full-automatic unilateral point welding machine is used for the lug on the pressure welding stator for the lug compresses tightly the enameled wire and gets rid of the enamel coating that is compressed tightly the position by the lug on the enameled wire, it includes:
a conveyor line body;
the positioning die is arranged on the conveying line body in a sliding mode and used for positioning and placing the stator;
the servo indexing mechanism is positioned above the conveying line body and is used for being connected with the stator to drive the stator to rotate according to a set stroke;
the pressurizing mechanism is arranged above the conveying line body and positioned on one side of the servo indexing mechanism and is used for pressurizing and welding wire lugs on the stator;
the side jacking mechanism is arranged above the conveying line body and positioned on the other side opposite to the pressurizing mechanism and is used for supporting the servo indexing mechanism so as to balance the pressure of the pressurizing mechanism on the servo indexing mechanism; and
and the feeding mechanism is positioned below the conveying line body and used for pushing the positioning die and the stator in the positioning die to ascend so as to be matched with the servo indexing mechanism, so that the pressurizing mechanism is used for pressurizing and welding the plurality of lugs on the peripheral side of the stator.
In the invention, the side jacking mechanism comprises a base frame, a cylinder, a fixing part and a roller;
the base frame is fixedly connected to the conveying line body, the cylinder is fixedly connected to the base frame, the fixing portion is fixedly connected to one end of a telescopic rod of the cylinder, the roller is rotatably connected to the fixing portion, and a circumferential rolling surface of the roller is used for being in rolling contact with the servo indexing mechanism to support the servo indexing mechanism.
The lateral ejection mechanism further comprises a guide pillar, the axial direction of the guide pillar is consistent with the axial direction of the telescopic rod, one end of the guide pillar is connected with the base frame in a sliding mode, and the other end of the guide pillar is fixedly connected with the fixing portion.
Furthermore, the fixing part comprises a connecting plate and a connecting block, two ends of the connecting plate are respectively and fixedly connected with a telescopic rod of the air cylinder and the guide pillar, and the connecting block is detachably connected to one side of the connecting plate, which is far away from the telescopic rod;
the connecting block is provided with two rollers, the rotating axes of the two rollers are parallel to the rotating axis of the servo indexing mechanism, and the welding point on the stator is positioned on the symmetrical plane between the two rollers;
the connecting plate is provided with a first threaded hole, the connecting block is provided with a first elongated connecting hole corresponding to the first threaded hole, and the radial length direction of the first connecting hole is approximately perpendicular to the rotation axis of the servo indexing mechanism so as to adjust the position of the roller relative to the servo indexing mechanism.
Furthermore, the roller comprises an inner ring and an outer ring which is rotatably connected to the periphery of the inner ring, the inner ring of the roller is fixed to the top surface of the connecting block through a fixing screw, a circumferential rolling surface of the outer ring is used for being in rolling contact with the servo indexing mechanism, a locking screw is further connected to the side surface of the connecting block, and the locking screw is in contact with the fixing screw.
In the invention, the full-automatic single-side spot welding machine further comprises a detection mechanism for detecting a wire lug on the stator before welding, wherein the detection mechanism is positioned on one side of the conveying line body and below the side jacking mechanism;
the detection mechanism comprises a first driving part, a first lifting plate, a detection needle and a correlation sensor, the detection needle comprises a barrel body and a needle body which is connected in the barrel body in a penetrating and sliding manner, and the first driving part is used for driving the first lifting plate to lift;
the correlation sensor sets up the top of first lifter plate, the barrel runs through to be fixed on the first lifter plate, the one end of needle body be used for with the contact of line ear, the other end be used for extending to respond to between the correlation response region of correlation sensor.
Furthermore, a positioning through hole consistent with the peripheral outline of the stator is formed in the first lifting plate;
the detection needle further comprises a spring limited in the barrel, and the spring is used for extruding the needle body to slide downwards so that the needle body is separated from the induction of the correlation sensor;
the first lifting plate is provided with a plurality of detection needles which are in one-to-one correspondence with the wire lugs on the stator, and the first lifting plate is provided with one correlation sensor.
In the invention, the full-automatic single-side spot welding machine further comprises a detection mechanism for detecting a wire lug on the stator before welding, the detection mechanism is positioned on one side of the conveying line body and below the side jacking mechanism, the detection mechanism comprises a second driving part, a second lifting plate and a distance sensor arranged on the second lifting plate, and the position of the distance sensor is opposite to the wire lug of the stator.
In addition, the pressurizing mechanism further comprises a lifting module, a moving module, a sliding seat, a copper rod, a tungsten rod, a pressurizing device, a cover plate, a first connecting rod and a second connecting rod;
the moving module is arranged on the lifting module, the lifting module controls lifting according to detection information of the detection mechanism, the sliding seat is connected to the moving module to obtain movement towards the direction of the servo indexing mechanism, and the first connecting rod, the second connecting rod and the pressurizing device are arranged on the sliding seat;
the utility model discloses a servo indexing mechanism, including servo indexing mechanism, first connecting rod, copper bar, pressure device, copper bar, first connecting rod, servo indexing mechanism, the first connecting rod is close to servo indexing mechanism's one end is connected the tungsten bar, and the other end is connected pressure device, the extending direction of tungsten bar with the extending direction of first connecting rod is unanimous, the copper bar slope is connected the tip of second connecting rod, the copper bar passes through the apron is pressed admittedly in the week side of second connecting rod, so that the copper bar with the tungsten bar homoenergetic contacts with the lug and forms the electric property return circuit.
Further, be provided with on the apron and be used for fixing the first constant head tank and the second constant head tank of bar copper, first constant head tank with second constant head tank cross arrangement to it is fixed through first constant head tank or through the second constant head tank the bar copper, so that the bar copper is and sets for different inclination.
The side of the second connecting rod is provided with a second threaded hole and a third threaded hole, a second connecting hole is formed in the cover plate, when the screw passes through the second connecting hole and the second threaded hole is connected, the cover plate is fixed through the first positioning groove, when the screw passes through the second connecting hole and the third threaded hole is connected, the cover plate is fixed through the second positioning groove and the copper rod.
Compared with the prior art, the invention has the beneficial effects that: according to the full-automatic single-side spot welding machine, the side jacking mechanism is arranged, so that when the pressurizing mechanism performs pressurizing welding on the wire lug on the stator, the side jacking mechanism can apply a balancing force to the other side of the servo indexing mechanism, equipment can be protected, and the service life of the equipment is prolonged;
the side top mechanism is driven by the cylinder to move through the fixing portion, so that the roller on the fixing portion is in rolling contact with the servo indexing mechanism, the servo indexing mechanism is not influenced in rotation when the side top is formed, on the other hand, the fixing portion is in sliding connection with the base frame through the guide pillar, the roller is arranged on the fixing portion through the fixing screw and the anti-loosening screw, and the side top mechanism is more stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.
Fig. 1 is a schematic structural view of a preferred embodiment of the fully automatic single-sided spot welder of the present invention.
Fig. 2 is an exploded view of the full automatic single-side spot welder of the present invention.
Fig. 3 is a schematic structural view of the side roof mechanism.
Fig. 4 is a schematic view of a connection structure of the fixing portion of the side top mechanism and the roller.
Fig. 5 is a schematic structural view of the detection mechanism.
Fig. 6 is a schematic structural view of a stator and a positioning mold.
Fig. 7 is a partial structural schematic view of a pressurizing mechanism of the full-automatic single-side spot welding machine of the invention.
Fig. 8 is a schematic structural view of the cover plate.
Detailed Description
The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.
The terms "first," "second," and the like in the terms of the invention are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., the connection may be a detachable connection or a connection in a unitary structure; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the prior art, the lugs on a plurality of stators are not distributed oppositely on the peripheral side of the stators, so that the lugs need to be subjected to spot welding one by one, but the spot welding operation is carried out from one side, and the stress is unbalanced, so that each part of the spot welding equipment is easy to damage after the stator is used for a long time.
The following is a preferred embodiment of the present invention that provides a fully automatic single-sided spot welder that solves the above technical problems.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a preferred embodiment of the full-automatic single-side spot welder of the present invention, and fig. 2 is a schematic structural diagram of an explosion of the full-automatic single-side spot welder of the present invention.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The invention provides a full-automatic unilateral spot welding machine which is used for pressure welding of a wire lug 191 on a stator 19, so that the wire lug 191 presses an enameled wire and removes a paint skin on a part pressed by the wire lug 191 on the enameled wire, and the full-automatic unilateral spot welding machine comprises a box body 11, a conveying wire body 12, a positioning die 18, a servo indexing mechanism 13, a pressurizing mechanism 14, a lateral jacking mechanism 15, a detection mechanism 16 and a feeding mechanism 17, wherein the conveying wire body 12, the positioning die 18, the servo indexing mechanism 13, the pressurizing mechanism 14, the lateral jacking mechanism 15 and the detection mechanism 16 are all arranged on the upper part in the box body 11, and the feeding mechanism 17 is arranged on the lower part in the box body 11.
It should be noted that a control host is further connected to one side of the box 11 to electrically connect the components to control the cooperative operation.
The positioning mold 18 is slidably disposed on the conveyor line body 12, the positioning mold 18 is used for positioning and placing the stators 19 (the stators are not labeled one by one in the figure), and then the conveyor line body 12 is used for conveying, it should be noted that the corresponding sensors are disposed to sense the stators 19 on the conveyor line body 12, so as to feed back the position information of the stators 19, and thus start and stop control of the conveyor line body 12 is achieved.
The servo indexing mechanism 13 is located above the conveyor line body 12 and is used for being connected with the stator 19 to drive the stator 19 to rotate according to a set stroke.
The pressing mechanism 14 is disposed above the conveyor line body 12 and on one side of the servo indexing mechanism 13, and is used for pressure welding the lug 191 on the stator 19.
The side jacking mechanism 15 is arranged above the conveyor line body 12 and on the other side opposite to the pressurizing mechanism 14, and is used for supporting the servo indexing mechanism 13 so as to balance the pressure of the pressurizing mechanism 14 on the servo indexing mechanism 13.
The feeding mechanism 17 is located below the conveyor line body 12, and is used for pushing the positioning die 18 and the stator 19 in the positioning die 18 to ascend so as to be matched with the servo indexing mechanism 13, so that the plurality of wire lugs 191 on the peripheral side of the stator 19 are subjected to pressure welding by the pressurizing mechanism 14.
According to the full-automatic single-side spot welding machine, the side jacking mechanism 15 is arranged, so that when the pressurizing mechanism 14 performs pressurizing welding on the wire lug on the stator 19, the side jacking mechanism 15 can provide balance force on the other side of the servo indexing mechanism 13, equipment can be protected, and the service life of the equipment can be prolonged.
Referring to fig. 6, the positioning mold 18 is slidably disposed on the conveyor line body 12, an annular chute is disposed on the conveyor line body 12, the positioning mold 18 is pushed by an air cylinder to move in the chute to realize circulation, and the positioning mold 18 is used for positioning and placing a stator 19;
the positioning mould 18 is provided with a positioning groove for positioning and placing the stator 19, meanwhile, the inner wall of the positioning groove can be provided with a matching groove corresponding to the protrusion on the peripheral side of the stator 19, so that accurate matching is realized, the position of the stator 19 is fixed, and in addition, the positioning mould 18 can be provided with a position avoiding groove 1821 corresponding to the wire lug 191.
The positioning mold 18 includes a sliding plate 181 and a positioning main body 182 detachably connected to the sliding plate 181 in a positioning manner, the sliding plate 181 is slidably disposed in a sliding slot of the conveyor line body 12, and the positioning main body 182 and the sliding plate 181 are detachably connected in a mating manner.
The sliding plate 181 is provided with a positioning through slot 1811 for positioning and connecting the positioning main body part 182, and the inner wall of the positioning through slot 1811 is provided with a supporting boss 1812 for supporting the positioning main body part 182.
The positioning through slot 1811 is also used for forming a clearance with the ascending or descending path of the feeding mechanism 17, so that the feeding mechanism 17 can pass through the positioning through slot 1811 to push the positioning main body part 182 to ascend, and when descending, the positioning main body part 182 is connected in the positioning through slot 1811 in a positioning way and supported by the supporting boss 1812, and then is conveyed by the conveyor line body 12.
In addition, the feeding mechanism 17 includes a driving module, a feeding shaft, and a feeding base.
The two ends of the feeding shaft are respectively connected with the driving module and the feeding base to drive the feeding base to ascend towards the servo indexing mechanism 13, a magnet block and a positioning column can be arranged on the feeding base, and meanwhile, a magnetic part corresponding to the magnet block and a positioning hole corresponding to the positioning column are arranged on the bottom surface, close to the feeding mechanism 17, of the positioning main body part 182, so that alignment during feeding is realized.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the side-top mechanism.
In the present invention, the side roof mechanism 15 includes a base frame, a cylinder 22, a fixing portion 23, and a roller 24.
The base frame is fixedly connected to the conveyor line body 12, specifically, the base frame is fixedly connected with a fixed frame part of the conveyor line body 12, the air cylinder 22 is fixedly connected to the base frame, the fixing part 23 is fixedly connected to one end of a telescopic rod of the air cylinder 22, the roller 24 is rotatably connected to the fixing part 23, a circumferential rolling surface of the roller 24 is used for being in rolling contact with the servo indexing mechanism 13 to support the servo indexing mechanism 13, and the rolling contact enables the servo indexing mechanism 13 to form a side top and simultaneously does not influence the rotation of the servo indexing mechanism 13.
The base frame comprises a main supporting plate 211 and reinforcing plates 212 connected to two sides of the main supporting plate 211, wherein through grooves 213 are further formed in the main supporting plate 211, and the through grooves 213 are used for avoiding stators on the conveyor line body 12. The reinforcing plates 212 on both sides may be triangular, and the dimension specification may be designed differently according to the actual installation environment and the stress condition.
In addition, the side ejection mechanism 15 further comprises a guide pillar 25, the axial direction of the guide pillar 25 is consistent with the axial direction of the telescopic rod, one end of the guide pillar 25 is connected with the base frame in a sliding mode, the other end of the guide pillar 25 is fixedly connected with the fixing portion 23, and the fixing portion 23 is connected with the base frame in a sliding mode through the guide pillar 23, so that the side ejection mechanism is more stable.
Referring to fig. 4, the fixing portion 23 in this embodiment includes a connecting plate 231 and a connecting block 232, two ends of the connecting plate 231 are respectively and fixedly connected to the telescopic rod of the cylinder 22 and the guide post 25, and the connecting block 232 is detachably connected to a side of the connecting plate 231 away from the telescopic rod.
Two rollers 24 are arranged on the connecting block 232, the rotation axes of the two rollers 24 are parallel to the rotation axis of the servo indexing mechanism 13, and the welding point on the stator 19 is positioned on the symmetrical plane between the two rollers 24, so that the support of the two rollers 24 on the servo indexing mechanism 13 and the pressure of the pressurizing mechanism 14 on the servo indexing mechanism 13 form a stable isosceles triangle relationship, and the balance effect is good.
As shown in fig. 4, the connecting block 232 in this embodiment includes a first block at the bottom and a second block at the top, and the first block and the second block are connected in an L shape, so that the first block is conveniently and fixedly connected to the connecting plate 231, and the second block is conveniently provided with the roller 24.
In the present embodiment, a first threaded hole is provided on the connecting plate 231, an elongated first connecting hole 2321 corresponding to the first threaded hole is provided on the connecting block 232, and a radial length direction of the first connecting hole 2321 is substantially perpendicular to a rotation axis of the servo indexing mechanism 13, so as to adjust a position of the roller 24 relative to the servo indexing mechanism 13, thereby adjusting a side top balance effect.
The roller 24 in this embodiment includes an inner ring and an outer ring rotatably connected to the outer periphery of the inner ring, for example, a bearing may be used as the roller 24, the inner ring of the roller 24 is fixed to the top surface of the connecting block 232 by a fixing screw 26, the circumferential rolling surface of the outer ring is used for rolling contact with the servo indexing mechanism 13, a locking screw 27 is further connected to the side surface of the connecting block 232, the locking screw 27 is in contact with the fixing screw 26, and the roller is disposed on the fixing portion by the fixing screw and the locking screw, so that the structure is more stable.
Referring to fig. 5, fig. 5 is a schematic structural diagram of the detection mechanism.
In the invention, the full-automatic single-side spot welding machine further comprises a detection mechanism 16 for detecting the lug 191 on the stator 19 before welding, the size specification of the lug 191 is mainly detected, the position of the lug 191 connected on the stator 19 is detected, the position difference of the lug 191 enables the pressurizing mechanism 14 to be adjusted to be at the corresponding processing position, and the detection mechanism 16 is positioned on one side of the conveyor line body 12 and below the side jacking mechanism 15.
The height positions of the wire lugs on different stators are different, and the wire lugs 191 are detected by the detection mechanism 16, so that the information such as the model specification of the stator can be detected and judged, and meanwhile, the copper rod 147 and the tungsten rod 148 are controlled to move to be opposite to the wire lugs 191 at different height positions.
The detection mechanism 16 in this embodiment includes a first driving portion 32, a first lifting plate 33, a detection needle 34, and a correlation sensor 35, the first driving portion 32 may be an air cylinder, the detection needle 34 includes a cylinder 341 and a needle body 342 slidably connected in the cylinder 341, and the first driving portion 32 is configured to drive the first lifting plate 33 to lift;
the correlation sensor 35 is arranged on the top of the first lifting plate 33, the cylinder 341 is fixed on the first lifting plate 33 in a penetrating manner, one end of the needle body 342 is used for contacting with the wire lug 191, and when the first lifting plate 33 descends and the needle body 342 is jacked up by the wire lug 191, the other end of the needle body 342 extends to a correlation sensing area of the correlation sensor 35 for sensing.
The detection mechanism 16 provided with the detection needle can be used for detecting the stators 19 with two specifications with different lug height positions, the lower lug 191 can not be detected by the correlation sensor 35 in an induction way, and the higher lug 191 can be detected by the correlation sensor 35 in an induction way, so that the information such as the model and the specification of the stator needing to be processed can be judged according to the information.
Preferably, a positioning through hole 331 conforming to the outer peripheral profile of the stator 19 may be provided on the first lifting plate 33, providing accuracy and stability of detection.
The detection needle 34 further comprises a spring which is limited in the barrel 341, the spring is used for extruding the needle body 342 to slide downwards, so that the needle body 342 is separated from the induction of the correlation sensor 35, wherein the needle body 342 is only required to be provided with a first section and a second section which are different in shaft diameter, the spring can be sleeved on the first section, the shaft diameter of the second section is larger than the aperture of the spring, the spring forms elastic extrusion on the second section, the other end of the spring is limited by the formation of the barrel 341, and the detection needle 34 can realize elastic expansion and contraction.
Preferably, a plurality of detection pins 34 corresponding to the wire lugs 191 of the stator 19 one by one are provided on the first lifting plate 33, and a stable and balanced detection state can be formed by the contact of the plurality of detection pins 34 with the plurality of wire lugs 191, but the height position of the wire lug 191 can be detected and determined by only providing one correlation sensor 35 on the first lifting plate 33, so that information such as the type or specification of the stator can be determined.
The detecting mechanism 16 in this embodiment further includes a supporting base fixedly connected to the fixing frame portion of the conveyor line body 12 through the supporting base, the supporting base includes a main body plate 311, the first driving portion 32 is disposed on one side of the main body plate 311, the first lifting plate 33 is in sliding contact with the main body plate 311, a transverse bottom plate 312 is disposed at a bottom end of the main body plate 311 for enhancing connection with the conveyor line body 12, and a reinforcing plate 313 is disposed between the main body plate 311 and the transverse bottom plate 312 for improving structural stability.
When the full-automatic single-side spot welding machine is used for processing stators with more than two specifications, wherein the height positions of the wire lugs have more than two different specifications, in this case, a detection mechanism with another structure can be adopted, and the detection mechanism comprises a second driving part, a second lifting plate and a distance sensor arranged on the second lifting plate, wherein the second driving part and the second lifting plate are consistent with the first driving part 32 and the first lifting plate 33 in structure, the difference is mainly that the distance sensor is adopted, the distance sensor is arranged at the position of a detection needle 34 in fig. 5, the position of the distance sensor is opposite to the wire lug 191 of the stator 19, and the distance sensor can feed back the height position of the wire lug 191.
Compared with the detection mechanism 16 provided with the detection needle 34 and the correlation sensor 35, the detection mechanism has the advantages that the height position difference between the wire lugs 191 of different stators is small, the detection is fine, the precision is high, the requirement on a distance sensor is high, the price is high, the cost is high, the correlation sensor 35 can be stably sensed and detected by the correlation sensor 35 as long as the needle body 342 moves, the detection is stable, and the cost is low.
Referring to fig. 7, fig. 7 is a partial structural schematic view of a pressing mechanism of the full-automatic single-side spot welding machine of the present invention.
The pressurizing mechanism 14 in this embodiment further includes a lifting module 141, a moving module 142, a sliding base 143, a copper bar 147, a tungsten bar 148, a pressurizing device 146, a cover plate 149, a first connecting rod 145, and a second connecting rod 144;
the moving module 142 is disposed on the lifting module 141, the lifting module 141 controls lifting according to the detection information of the detection mechanism 16, so that the copper bar 147 and the tungsten bar 148 can be opposite to the wire lugs 191 at different height positions, the sliding base 143 is connected to the moving module 142 to obtain movement towards the servo indexing mechanism 13, the first connecting rod 145, the second connecting rod 144 and the pressurizing device 146 are disposed on the sliding base 143, the sliding base 143 includes a limit plate 1431, and the limit plate 1431 is used for connecting the first connecting rod 145, the second connecting rod 144 and the pressurizing device 146.
One end of the first connecting rod 145 close to the servo indexing mechanism 13 is connected with a tungsten rod 148, the other end of the first connecting rod 145 is connected with a pressurizing device 146, the extending direction of the tungsten rod 148 is consistent with the extending direction of the first connecting rod 145, the copper rod 147 is obliquely connected to the end part of the second connecting rod 144, the copper rod 147 is fixedly pressed on the peripheral side of the second connecting rod 144 through a cover plate 149, so that the copper rod 147 and the tungsten rod 148 can be in contact with the lug 191 to form an electric loop, then welding resistance is formed at the position of the tungsten rod 148 to generate welding heat, and the purpose of welding is achieved.
An elastic member 1441 is further arranged between the second connecting rod 144 and the limit plate 1431, the direction of the elastic force of the elastic member 1441 is consistent with the sliding track of the sliding seat 143, the contact between the copper bar 147 and the lug 191 is more stable by arranging the elastic member 1441, and the contact is not easy to break away in the moving deformation process.
Referring to fig. 8, the cover plate 149 is provided with a first positioning groove 41 and a second positioning groove 42 for fixing the copper bar 147, and the first positioning groove 41 and the second positioning groove 42 are arranged in a crossing manner, so that the copper bar 147 is fixed through the first positioning groove 41 or the second positioning groove 42, and the copper bar 147 is set to have different inclination angles, thereby achieving high utilization rate, cost saving, and good compatibility.
Specifically, a second threaded hole and a third threaded hole may be provided on the peripheral side of the second connecting rod 144, a second connecting hole 43 is provided on the cover plate 149, and the cover plate 149 of this embodiment is provided with 2 second connecting holes, that is, four threaded holes are required to be provided on the peripheral side of the second connecting rod 144;
when the screw is connected with the second screw hole through the second connecting hole 43, the cover plate 149 fixes the copper bar 147 through the first positioning groove 41, and when the screw is connected with the third screw hole through the second connecting hole 43, the cover plate 149 fixes the copper bar 147 through the second positioning groove 42.
The working principle of the full-automatic unilateral spot welding machine is as follows: a stator 19 to be welded is placed on a positioning die 18 at one end of a conveying section outside the conveyor line body 12, the conveyor line body 12 is conveyed in a running mode, and when the stator 19 reaches a position opposite to the detection mechanism 16, the first driving portion 32 drives the first lifting plate 33 to descend, so that the positioning through hole 331 is matched with the periphery of the stator 19 in a positioning mode, and meanwhile, the detection needle 34 is in contact with the wire lug 191;
then, the control host can correspondingly control the lifting module 141 to lift according to the sensing signal of the correlation sensor 35, so that the subsequent copper bar 147 and tungsten bar 148 can perform the pressure spot welding operation relative to the wire lug 191;
when the stator 19 reaches a position opposite to the servo indexing mechanism 13, the feeding shaft of the feeding mechanism 17 is lifted, so that the feeding base and the positioning main body part 182 form fixed connection through magnetic attraction and positioning of the positioning column, the positioning main body part 182 is separated from the sliding plate 181 through continuous lifting, and the stator 14 on the positioning main body part 182 is in positioning contact with the positioning part on the servo indexing mechanism 13 through further lifting;
then, the moving module 142 drives the copper bar 147 and the tungsten bar 148 to approach to the lug 191 on the servo indexing mechanism 13 for spot welding, and meanwhile, the cylinder 22 drives the fixing part 23 to move towards the servo indexing mechanism 13, so that the circumferential rolling surface of the roller 24 is in rolling contact with the servo indexing mechanism 13 to form a side top, wherein the copper bar 147 and the tungsten bar 148 can both be in contact with the lug 191 and form an electrical loop, and then a welding resistor is formed at the position of the tungsten bar 148 to generate welding heat, so that the purpose of welding is achieved;
after one lug 191 is welded, the moving module 142 drives the copper bar 147 and the tungsten bar 148 to be away from the servo indexing mechanism 13, the air cylinder 22 drives the roller 24 to be away from the servo indexing mechanism 13, and the servo indexing mechanism 13 rotates for a set stroke to weld the next lug 191.
After the welding is completed, the feeding shaft of the feeding mechanism 17 descends to drive the stator 19 and the positioning main body part 182 to descend together until the positioning main body part 182 is positioned and connected in the positioning through groove 1811 and supported by the supporting boss 1812, and then the stator is continuously conveyed by the conveyor line body 12.
Thus, the process of spot welding the lug of the stator by the full-automatic single-side spot welding machine of the preferred embodiment is completed.
According to the full-automatic single-side spot welding machine in the preferred embodiment, the side jacking mechanism is arranged, so that when the pressurizing mechanism performs pressurizing welding on the wire lug on the stator, the side jacking mechanism can apply balancing force to the other side of the servo indexing mechanism, equipment can be protected, and the service life of the equipment can be prolonged;
the side top mechanism is driven by the cylinder to move through the fixing portion, so that the roller on the fixing portion is in rolling contact with the servo indexing mechanism, the servo indexing mechanism is not influenced in rotation when the side top is formed, on the other hand, the fixing portion is in sliding connection with the base frame through the guide pillar, the roller is arranged on the fixing portion through the fixing screw and the anti-loosening screw, and the side top mechanism is more stable.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. The side jacking mechanism is used for supporting a servo indexing mechanism to balance pressure of a pressurizing mechanism on the servo indexing mechanism, and comprises a base frame, a cylinder, a fixed part guide post and a roller;
the base frame is fixedly connected to the conveyor line body, the cylinder is fixedly connected to the base frame, the fixing portion is fixedly connected to one end of a telescopic rod of the cylinder, the roller is rotatably connected to the fixing portion, a circumferential rolling surface of the roller is used for being in rolling contact with the servo indexing mechanism to support the servo indexing mechanism, the axial direction of the guide pillar is consistent with the axial direction of the telescopic rod, one end of the guide pillar is slidably connected with the base frame, and the other end of the guide pillar is fixedly connected with the fixing portion.
2. The side-jacking mechanism according to claim 1, wherein the fixing part comprises a connecting plate and a connecting block, two ends of the connecting plate are respectively fixedly connected with the telescopic rod of the cylinder and the guide post, and the connecting block is detachably connected to one side of the connecting plate away from the telescopic rod;
the connecting block comprises a first block at the bottom and a second block at the top, the first block and the second block are connected into an L shape, two rollers are arranged on the second block, the rotating axes of the two rollers are parallel to the rotating axis of the servo indexing mechanism, and the welding point on the stator is positioned on the symmetrical plane between the two rollers;
the connecting plate is provided with a first threaded hole, the connecting block is provided with a first elongated connecting hole corresponding to the first threaded hole, and the radial length direction of the first connecting hole is approximately perpendicular to the rotation axis of the servo indexing mechanism so as to adjust the position of the roller relative to the servo indexing mechanism.
3. The mechanism of claim 1, wherein the roller comprises an inner ring and an outer ring rotatably connected to the outer circumference of the inner ring, the inner ring of the roller is fixed to the top surface of the connecting block by a fixing screw, the circumferential rolling surface of the outer ring is used for rolling contact with the servo indexing mechanism, and a locking screw is further connected to the side surface of the connecting block, and the locking screw is in contact with the fixing screw.
4. The mechanism as claimed in claim 1, wherein the base frame comprises a main support plate and reinforcing plates connected to both sides of the main support plate, the main support plate having a through slot.
5. A full-automatic one-side spot welding machine for pressure welding a lug on a stator so that the lug presses an enameled wire and removes a coating on the enameled wire at a portion pressed by the lug, wherein the machine comprises the side-jacking mechanism of any one of claims 1 to 4, and further comprises:
a conveyor line body;
the positioning mould is arranged on the conveying line body in a sliding mode, and a positioning groove for positioning and placing the stator is formed in the positioning mould;
the servo indexing mechanism is positioned above the conveying line body and is used for being connected with the stator to drive the stator to rotate according to a set stroke;
the pressurizing mechanism is arranged above the conveying line body and positioned on one side of the servo indexing mechanism and is used for pressurizing and welding wire lugs on the stator;
the side jacking mechanism is arranged above the conveying line body and is positioned at the other side opposite to the pressurizing mechanism; and
and the feeding mechanism is positioned below the conveying line body and used for pushing the positioning die and the stator in the positioning die to ascend so as to be matched with the servo indexing mechanism, so that the pressurizing mechanism is used for pressurizing and welding the plurality of lugs on the peripheral side of the stator.
6. The fully automatic one-sided spot welder of claim 5, further comprising a detection mechanism for detecting a lug on a stator prior to welding, the detection mechanism located on one side of the conveyor line body and below the side jacking mechanism;
the detection mechanism comprises a first driving part, a first lifting plate, a detection needle and a correlation sensor, the detection needle comprises a barrel body and a needle body which is connected in the barrel body in a penetrating and sliding manner, and the first driving part is used for driving the first lifting plate to lift;
the correlation sensor sets up the top of first lifter plate, the barrel runs through to be fixed on the first lifter plate, the one end of needle body be used for with the contact of line ear, the other end be used for extending to respond to between the correlation response region of correlation sensor.
7. The full-automatic single-sided spot welder according to claim 6, wherein the first lifting plate is provided with positioning through holes conforming to the peripheral profile of the stator;
the detection needle further comprises a spring limited in the barrel, and the spring is used for extruding the needle body to slide downwards so that the needle body is separated from the induction of the correlation sensor;
the first lifting plate is provided with a plurality of detection needles which are in one-to-one correspondence with the wire lugs on the stator, and the first lifting plate is provided with one correlation sensor.
8. The fully automatic one-sided spot welder of claim 5, further comprising a detection mechanism for detecting a lug on a stator prior to welding, the detection mechanism located on one side of the conveyor line body and below the side jacking mechanism, the detection mechanism comprising a second drive portion, a second lift plate, and a distance sensor disposed on the second lift plate, the distance sensor located opposite the lug of the stator.
9. The full-automatic one-sided spot welder according to claim 6, wherein the pressurizing mechanism further comprises a lifting module, a moving module, a slide, a copper rod, a tungsten rod, a pressurizing device, a cover plate, a first connecting rod and a second connecting rod;
the moving module is arranged on the lifting module, the lifting module controls lifting according to detection information of the detection mechanism, the sliding seat is connected to the moving module to obtain movement towards the direction of the servo indexing mechanism, and the first connecting rod, the second connecting rod and the pressurizing device are arranged on the sliding seat;
the utility model discloses a servo indexing mechanism, including servo indexing mechanism, first connecting rod, copper bar, pressure device, copper bar, first connecting rod, servo indexing mechanism, the first connecting rod is close to servo indexing mechanism's one end is connected the tungsten bar, and the other end is connected pressure device, the extending direction of tungsten bar with the extending direction of first connecting rod is unanimous, the copper bar slope is connected the tip of second connecting rod, the copper bar passes through the apron is pressed admittedly in the week side of second connecting rod, so that the copper bar with the tungsten bar homoenergetic contacts with the lug and forms the electric property return circuit.
10. The full-automatic one-sided spot welder according to claim 9, wherein a first positioning groove and a second positioning groove for fixing the copper bar are provided on the cover plate, and the first positioning groove and the second positioning groove are arranged to intersect each other, so that the copper bar is fixed by the first positioning groove or the second positioning groove, and the copper bar is at different inclination angles.
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| CN202110903761.8A CN113458567B (en) | 2019-12-10 | 2019-12-10 | Side top mechanism and corresponding full-automatic unilateral spot welding machine |
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| CN201911260556.3A CN110860775B (en) | 2019-12-10 | 2019-12-10 | Full-automatic unilateral spot welding machine |
| CN202110903761.8A CN113458567B (en) | 2019-12-10 | 2019-12-10 | Side top mechanism and corresponding full-automatic unilateral spot welding machine |
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| CN110860775B (en) | 2021-09-03 |
| CN110860775A (en) | 2020-03-06 |
| CN113458567B (en) | 2022-08-26 |
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