CN109877490B - Welding feeding mechanism with iron core locating rod loading and unloading function - Google Patents
Welding feeding mechanism with iron core locating rod loading and unloading function Download PDFInfo
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- CN109877490B CN109877490B CN201910172015.9A CN201910172015A CN109877490B CN 109877490 B CN109877490 B CN 109877490B CN 201910172015 A CN201910172015 A CN 201910172015A CN 109877490 B CN109877490 B CN 109877490B
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Abstract
The invention discloses a welding feeding mechanism with an iron core positioning rod loading and unloading function, wherein an indexing rotary feeding mechanism is arranged on a workbench, the mechanism adopts a turntable to rotationally switch a welding station and a feeding station to convey an iron core, and an iron core supporting cylinder for placing the iron core is arranged on the turntable; simultaneously, an automatic assembling and disassembling mechanism for the iron core positioning rod is correspondingly designed, and the mechanism adopts a positioning rod lifting driving mechanism arranged at the bottom of the workbench and corresponding to the feeding station to drive a positioning rod base in the iron core supporting cylinder and a plurality of iron core positioning rods vertically fixed on the positioning rod base to move up and down, so that the function of leading the iron core positioning rods into and out of the iron core wire slots is realized. And when the iron core locating rod is inserted into the iron core wire slot, a magnet used for being adsorbed to the bottom of the iron core is arranged on the base of the locating rod. The invention can automatically complete the installation and the disassembly of the iron core positioning rod in the feeding process, and has higher automation degree, thereby obviously improving the production efficiency of iron core welding.
Description
Technical Field
The invention relates to a welding feeding mechanism with an iron core positioning rod assembling and disassembling function.
Background
As known, in the known motor manufacturing industry, a stator core is manufactured by adopting a mode of welding and fixing after lamination of silicon steel sheets, and the effect of welding after lamination is to reduce hysteresis loss and eddy current loss of a motor and prevent the motor from being overheated during operation, thereby reducing efficiency and even burning. Many manufacturers currently use special welding equipment, either purchased or designed by themselves, for welding the core. The welding equipment generally comprises a workbench, an iron core positioning tool arranged on the workbench, a feeding mechanism, a welding gun and a driving mechanism for driving the welding gun to move.
Compared with manual operation, the welding device has higher welding efficiency and accuracy, and partial special-designed welding devices can realize special welding operations such as oblique welding and the like, so that the welding track is convenient to control. For example, the applicant manufactured and declared an invention patent (application number 201610768272.5) is a high-precision automatic welding device for silicon steel sheets, which adopts a circular welding gun disc to mount a welding gun, and further designs the welding gun disc into a rotatable form, adopts a driving motor to connect and drive the welding gun disc to move through a transmission mechanism, so that the welding gun disc can perform stable horizontal rotation during operation, and the welding gun action on the welding gun disc is controlled with high precision so as to implement 'oblique welding' operation. And when a plurality of welding guns are fixed on the welding gun disc, multi-point oblique welding operation can be synchronously performed, so that the operation efficiency and quality are greatly improved, and the requirements of customers are better met.
Meanwhile, the sheet arranging mechanism of the welding equipment is specially designed to be a poking sheet arranging mechanism, a mode that the ejector rod pokes from bottom to top and is matched with the downward pressing guide frame to press the iron core is adopted, wherein the punching top of the ejector rod drives the silicon steel sheets to bend and arch, complex stress inside each silicon steel sheet is eliminated, the silicon steel sheets are concentrated and tightly adhered, then rebound and fall back to be flat under the action of the pressure of the downward pressing guide frame, self gravity and material deformation reset force, and an excellent sheet arranging effect is achieved. The implementation effect is good, the silicon steel sheets after being processed can be laminated in order, the lamination degree is higher, and the subsequent welding quality of the silicon steel sheets is improved to a certain extent.
In addition, the welding device is mainly matched with the guide rail sliding type double-station feeding mechanism, the two sliding carrying platforms are used for alternately feeding, when one of the two sliding carrying platforms is located on a welding station for operation, the other one of the two sliding carrying platforms can be used for stacking silicon steel sheets in advance, so that the working efficiency is greatly improved, the sliding carrying platforms are controlled to translate by the translation driving mechanism, a special path is provided, the stability is good, the moving distance is short, the silicon steel sheets on the sliding carrying platforms can be effectively prevented from shaking and misplacement, and the follow-up welding precision is improved.
Of course, although the welding device has a plurality of functions and is convenient to use, according to the concept of continuous innovation and improvement of the technology, research and development personnel find that the following parts to be improved exist in the feeding mechanism through practice in the process of applying the welding device:
1) Mounting and dismounting functions of coreless positioning rod
As is well known, the iron core needs to be corrected and positioned by adopting the positioning rods before welding, namely, a plurality of vertical positioning rods are inserted into the inner side wire slots of the iron core, so that the influence on welding precision and quality caused by dislocation deflection among silicon steel sheets is avoided, and the positioning rods need to be removed after welding is finished. However, in the prior art, all the installation and the dismantling of the positioning rod are performed manually, the positioning rod is installed on a fixture of the welding device in advance by a worker, and then the wire slot on the iron core is correspondingly sleeved on the positioning rod. Because the iron core wire slot is narrower, the locating rod is more, so even experienced workers need to spend more time (repeatedly calibrating the iron core locating rod and the iron core wire slot) to carry out the installation operation, and then the disassembly is carried out, the operation is complex, and the welding operation efficiency is greatly reduced.
And just because the locating lever still adopts the manual work to install, cause present above-mentioned welding feed mechanism can't carry and place the better linking of leading automatic equipment of iron core with many adoption manipulators, cause the holistic production efficiency of iron core can't further improve.
2) The guide rail and the sliding carrier are required to be installed, the structure is complex, and the design and the introduction of the automatic installation mechanism of the iron core positioning rod are not facilitated. In addition, the iron core is larger to the impact of guide rail when reason piece punching press for guide rail life-span and operational reliability greatly reduced, although design has floating slip microscope carrier to solve this problem, still have higher requirement to the material and the structural strength of guide rail, and make feed mechanism whole more complicated, manufacturing cost improves greatly.
Disclosure of Invention
The invention aims at: the welding feeding mechanism with the iron core positioning rod loading and unloading function is capable of automatically completing the installation and the removal of the iron core positioning rod in the feeding process, and is higher in automation degree, so that the iron core welding production efficiency is remarkably improved.
The technical scheme of the invention is as follows: the welding feeding mechanism comprises a workbench provided with welding stations, and is characterized in that the workbench is provided with an indexing rotary feeding mechanism, the mechanism comprises a turntable and an indexing rotary driving device connected with the turntable, the workbench is provided with a plurality of feeding stations corresponding to the turntable, and the feeding stations and the welding stations are uniformly distributed at intervals according to the indexing angle of the turntable; an iron core supporting cylinder for placing an iron core is arranged on the turntable corresponding to the welding station and each feeding station; the automatic loading and unloading mechanism for the iron core positioning rods is characterized by further comprising an automatic loading and unloading mechanism for the iron core positioning rods, wherein the automatic loading and unloading mechanism comprises a positioning rod base arranged in each iron core supporting cylinder, a plurality of iron core positioning rods vertically fixed on the positioning rod base, and a positioning rod base lifting driving mechanism corresponding to the iron core supporting cylinders on each feeding station and arranged at the bottom of the workbench; the clamping jaw is connected with the clamping jaw driving device, is driven by the clamping jaw driving device and is opened so as to be matched and locked with the clamping jaw groove arranged on the positioning rod base, and is used for pulling the positioning rod base downwards, the rotary table is provided with holes corresponding to each iron core supporting cylinder, and the workbench is also provided with holes corresponding to the holes on the rotary table for driving the driving seat and the upper driving top plate and the clamping jaw to move up and down.
Further, the invention also comprises a PLC controller which is connected with the jacking device and the indexing rotary driving device, the jacking device is provided with three working positions which are controlled by the cooperation of the proximity sensor and the PLC controller, the jacking device outputs the jacking height of the ejector rod to be respectively an initial position from low to high according to the jacking device, the initial position is avoided, the driving seat and the driving top plate and the clamping jaw on the driving seat are positioned below the turntable and do not interfere with the rotation of the turntable, and the jacking device pulls the positioning rod base and the iron core positioning rod on the positioning rod base to retract into an avoidance cavity arranged in the iron core supporting cylinder and does not interfere with the iron core transfer when in the avoidance position; when the iron core is in the upper jacking position, the jacking device drives the positioning rod base to jack and adsorb the positioning rod base at the bottom of the iron core, so that the iron core positioning rod is inserted into the wire slot of the iron core.
Further, the workbench is provided with the sensor bracket beside the iron core supporting cylinder of the feeding station and the iron core detection photoelectric sensor arranged on the sensor bracket, and the iron core detection photoelectric sensor is connected with the PLC and is used for detecting whether an iron core exists on the iron core supporting cylinder of the feeding station.
Furthermore, a positioning rod base lifting guide mechanism is arranged in each iron core supporting cylinder, and comprises a plurality of positioning rod base guide posts vertically fixed on the turntable, and the positioning rod base guide posts are matched with guide sleeves arranged on the positioning rod base.
Further, in the invention, the feeding station is one, and the feeding station and the welding station are distributed at 180 degrees relative to the center of the turntable.
Further, in the invention, the jacking device is an air cylinder or an oil cylinder.
Further, in the invention, the indexing rotary driving device is an electric indexing disc or a pneumatic indexing disc.
It should be noted that, the welding station on the workbench in the present invention is commonly used to provide a welding mechanism and a sheet arranging mechanism as in the conventional technology.
The welding mechanism generally comprises a lifting mechanism and a welding gun tray mechanism arranged on the lifting mechanism, wherein the lifting mechanism comprises a lifting bracket provided with the welding gun tray mechanism and a lifting driving device for driving the lifting bracket to lift, and the lifting driving device is an air cylinder or a hydraulic cylinder or a servo cylinder; the welding gun disc mechanism is a fixed welding gun disc mechanism and comprises a welding gun disc fixed with the lifting bracket and a plurality of welding guns arranged on the welding gun disc at uniform intervals along the circumference;
or the welding gun disc mechanism can also be a rotary welding gun disc mechanism, which comprises an annular mandrel longitudinally fixed on the lifting support, a welding gun disc arranged on the annular mandrel through a bearing sleeve, and a driving motor which is arranged on the lifting support and connected with the lifting support through a transmission mechanism and drives the welding gun disc to rotate, wherein a plurality of welding guns are uniformly arranged on the welding gun disc at intervals along the circumference, the transmission mechanism is a gear transmission mechanism and comprises an outer gear ring fixedly or integrally arranged on the outer side of the welding gun disc, and a horizontal rotation driving gear which is pivoted on the lifting support and meshed with the outer gear ring, the horizontal rotation driving gear is connected with an output shaft of the driving motor, or the transmission mechanism is a synchronous belt transmission mechanism and comprises a driven wheel fixedly or integrally arranged on the outer side of the welding gun disc and a driving wheel pivoted on the lifting support and connected with the driven wheel through a synchronous belt, and the driving wheel is connected with an output shaft of the driving motor, and the driving motor is a servo motor or a stepping motor or a direct current motor; the bearing is a ball bearing or a thrust bearing.
The sheet arranging mechanism can be an existing poking sheet arranging mechanism and comprises a pressing mechanism and an upper poking mechanism, wherein the upper poking mechanism comprises a push rod arranged below a workbench corresponding to a welding station and a punch top driving device for driving the push rod to act, and the workbench is provided with a perforation corresponding to the perforation on the turntable and used for the push rod to pass through; the pressing mechanism comprises a pressing guide frame and a pressing driving device for driving the pressing guide frame to act, and a pressing cover for pressing the iron core is arranged on the pressing guide frame; the ejector rod is driven by the ejection driving device to jack up and sequentially jack in the iron core after passing through the perforation on the workbench, the perforation on the turntable and the iron core supporting cylinder to drive the silicon steel sheet of the iron core to bend and arch, and the pressing cover is driven by the pressing driving device to press down against the iron core, so that the silicon steel sheet of the iron core falls back and is leveled; the pressing mechanism further comprises a plurality of pressing guide upright posts vertically fixed on the workbench, and guide sleeves matched with the pressing guide upright posts are arranged on the pressing guide frame.
The working principle of the invention is as follows:
at the beginning, place the iron core that waits to weld by manual work or manipulator on the iron core support section of thick bamboo on the carousel material loading station (when the material loading station is a plurality of, all place the iron core on the iron core support section of thick bamboo of every material loading station), after the iron core detects photoelectric sensor and detects the iron core and put in place, send the signal and give the PLC controller, then order about jacking device and graduation rotation driving device operation completion following step under the control of PLC controller:
1) The output ejector rod of the jacking device is jacked out from an initial position (namely the lowest position) to drive the driving seat and the driving top plate on the driving seat to jack the positioning rod base to rise, and the positioning rod base stops when the driving seat is jacked up to the upper position, at the moment, the positioning rod base is jacked and adsorbed at the bottom of the iron core, the iron core positioning rod is inserted into the wire slot of the iron core, the installation of the iron core positioning rod is completed, and the iron core is positioned;
2) The output ejector rod of the jacking device is retracted to an initial position (namely a lowest position), the turntable rotates under the drive of the indexing rotation driving device, the positioned iron core is sent to the welding station, the sheet arranging mechanism carries out sheet arranging operation under the control of the PLC, and then the welding mechanism carries out welding operation under the control of the PLC, which are all known technologies and are not described in detail;
3) After the iron cores on the welding stations are welded, the PLC controls the indexing rotary driving device to drive the turntable to rotate, the welded iron cores are screwed to the adjacent feeding stations again, after the iron cores are in place, the jacking devices corresponding to the feeding stations are jacked up again to the jacking positions, the positioning rod base and the iron core positioning rods arranged on the positioning rod base are pulled by the matching of the clamping jaw and the clamping jaw grooves to retract into the avoidance cavity arranged in the iron core supporting cylinder, the iron cores are not interfered to be transferred, and then the welded iron cores are taken out by a manual or mechanical arm to be sent to the next procedure;
4) And (3) placing a new iron core to be welded on the iron core supporting cylinder from which the iron core is taken away on the feeding station by a manual or mechanical arm, and repeating the steps 1) to 3).
When the iron core is initially placed, corresponding marks are made on the iron core and the workbench in advance to ensure that the placement position and angle of the iron core are fixed, so that the iron core positioning rod at the bottom can be vertically and unobstructed inserted into the iron core wire slot.
The invention has the advantages that:
1. according to the welding feeding mechanism with the iron core positioning rod loading and unloading function, the iron core positioning rod automatic loading and unloading mechanism is specially designed on the workbench, the iron core positioning rod can be automatically installed and dismantled in the feeding process, the automation degree is very high, the defect of a conventional welding machine in the aspect is overcome, and therefore the production efficiency is remarkably improved.
2. The automatic iron core positioning rod loading and unloading mechanism is carefully designed, the jacking device is adopted to drive the driving top plate and the clamping jaw to alternately finish the jacking and pulling of the positioning rod base, the action is simple and rapid, the positioning rod base is vertically guided by the lifting guide mechanism of the positioning rod base, the action precision of the positioning rod base in the iron core supporting cylinder is further improved, the matching precision of the iron core positioning rod and the iron core wire slot is further ensured, compared with manual operation, the time cost for repeatedly correcting the iron core positioning rod and the iron core wire slot is eliminated, and the working efficiency is greatly improved.
3. Compared with the traditional guide rail sliding type double-station feeding mechanism which is required to be provided with the guide rail and the sliding carrier, the guide rail sliding type double-station feeding mechanism has the advantages that the structure is simple, the problem that the guide rail is easy to be impacted is avoided, the manufacturing cost is saved, the design and the introduction of an automatic iron core positioning rod installing mechanism are particularly facilitated, the automatic iron core positioning rod installing mechanism can be well matched with the automatic iron core positioning rod installing mechanism, and the interference problem of a plurality of mechanisms is avoided.
4. According to the invention, the iron core is placed by arranging the iron core supporting cylinder on the turntable, and the positioning rod base and the iron core positioning rod thereof are formed in the iron core supporting cylinder, wherein the positioning rod base and the iron core positioning rod are contained in the cavity after the cavity is retracted, so that the problem that the iron core positioning rod interferes with the iron core to be taken out is effectively avoided.
5. The feeding mechanism provided by the invention is convenient for taking and placing the iron core, so that the feeding mechanism can be well connected with a plurality of front automatic equipment for conveying and placing the iron core by adopting a mechanical arm, and the whole automation degree and the production efficiency of the iron core are further improved.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of the overall perspective of a welder incorporating the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a section A-A of fig. 2 (with the ram and ram drive omitted).
Wherein: 1. a work table; 2. an iron core; 3. a turntable; 4. an indexing rotation driving device; 5. an iron core supporting cylinder; 6. a positioning rod base; 6a, clamping jaw grooves; 7. an iron core positioning rod; 8. a jacking device; 8a, outputting a push rod; 8b, jacking the guide rod of the device; 9. a driving seat; 10. driving the top plate; 11. a clamping jaw; 12. opening holes; 13. avoiding the cavity; 14. positioning rod base guide posts; 15. a lifting bracket; 16. a servo cylinder; 17. a welding gun disc; 18. a welding gun; 19. perforating; 20. pressing down the guide frame; 21. a push-down driving device; 22. a gland; 23. pressing down the guide upright post; 24. a stress cushion block; a. an initial bit; b. avoidance of yielding; c. and (5) the upper top position.
Detailed Description
Examples: the following describes a specific embodiment of the welding feeding mechanism with the iron core positioning rod assembling and disassembling function according to the present invention with reference to fig. 1 to 3. As shown in fig. 1-3, the whole welding machine is provided with the welding machine, and the welding machine is provided with a workbench 1 provided with a welding station, a welding mechanism and a sheet arranging mechanism which are arranged on the workbench 1 corresponding to the welding station, and a feeding mechanism which is arranged on the workbench 1 and is used for conveying iron cores 2 to the welding station, and the core improvement of the feeding mechanism is that an indexing rotary feeding mechanism is arranged on the workbench 1, and an automatic loading and unloading mechanism of an iron core positioning rod is correspondingly designed.
Referring to fig. 1 to 3, the indexing rotary feeding mechanism of the present invention comprises a turntable 3, a connection turntable 3, an indexing rotary driving device 4, and two core supporting cylinders 5 provided on the turntable 3. The indexing rotation driving device 4 is an electric indexing disc, and the indexing angle is 180 degrees, namely, the indexing rotation driving device rotates 180 degrees each time.
In this embodiment, a feeding station is disposed on the workbench 1 corresponding to the turntable 3, and the feeding station and the welding station are uniformly distributed at intervals according to the indexing angle of the turntable 3, that is, the feeding station and the welding station are distributed 180 degrees about the center of the turntable 3. The turntable 3 is provided with an iron core supporting cylinder 5 for placing the iron core 2 corresponding to the welding station and the feeding station.
Specifically referring to fig. 3, the automatic assembling and disassembling mechanism for the iron core positioning rod is composed of a positioning rod base 6 arranged in each iron core supporting cylinder 5, four iron core positioning rods 7 vertically fixed on the positioning rod base 6, and a positioning rod base lifting driving mechanism arranged at the bottom of the workbench 1 corresponding to the iron core supporting cylinder 5 on the feeding station. The lifting driving mechanism of the positioning rod consists of a jacking device 8, a driving seat 9 fixed on an output ejector rod 8a of the jacking device 8, a driving top plate 10 and a clamping jaw 11 fixed on the driving seat 9, and a clamping jaw driving device connected with the action of driving the clamping jaw 11, wherein the clamping jaw driving device is an air cylinder in the embodiment.
Still as shown in fig. 3, the lifting device 8 in this embodiment is an oil cylinder, and has an output ejector rod 8a, and two lifting device guide rods 8b disposed in parallel on two sides of the output ejector rod 8a, which are lifted and lowered synchronously with the output ejector rod 8 a. The driving top plate 10 is used for pushing the positioning rod base 6 to ascend, and a magnet used for being adsorbed to the bottom of the iron core 2 is arranged on the positioning rod base 6; the clamping jaw 11 is driven by the clamping jaw driving device and is opened so as to be matched and locked with the clamping jaw groove 6a arranged on the positioning rod base 6, the clamping jaw driving device is used for pulling the positioning rod base 6 downwards, an opening 12 is arranged on the turntable 3 corresponding to each iron core supporting cylinder 5, and an opening 12 for driving the driving seat 9 and the upper driving top plate 10 and the clamping jaw 11 to move up and down is also arranged on the workbench 1 corresponding to the opening 12 on the turntable 3, as shown in fig. 3.
In this embodiment, a PLC controller is provided that is connected to the jacking device 8, the indexing rotary driving device 4, the welding mechanism, and the sheet arranging mechanism. The jacking device 8 is provided with three working positions which are controlled by the cooperation of the proximity sensor and the PLC controller, and the three working positions are respectively an initial position, a avoidance position and an upper jacking position according to the ejection height of the jacking device 8 output ejector rod 8a from low to high. For convenience of explanation, three working positions are correspondingly represented on a jacking device guide rod 8b which is synchronously lifted with the output ejector rod 8a, namely an initial position a, a avoidance position b and an upper jacking position c, and the initial position a, the avoidance position b and the upper jacking position c are corresponding to the ejection height of the output ejector rod 8 a.
In the initial position a, the output ejector rod 8a keeps the original height, the driving seat 9 and the driving top plate 10 and the clamping jaw 11 on the driving seat are positioned below the turntable 3, the rotation of the turntable 3 is not interfered, and in the avoidance position b, the jacking device 8 pulls the positioning rod base 6 and the iron core positioning rod 7 on the positioning rod base to retract into the avoidance cavity 13 arranged in the iron core supporting cylinder 5, as shown in fig. 3, the iron core 2 is not interfered to be transferred; in the upper jacking position c, the jacking device 8 drives the positioning rod base 6 to jack and adsorb the positioning rod base at the bottom of the iron core 2, so that the iron core positioning rod 7 is inserted into the wire slot of the iron core 2.
The workbench 1 is provided with a sensor bracket positioned beside the iron core supporting cylinder 5 of the feeding station and an iron core detection photoelectric sensor (omitted in the figure) arranged on the sensor bracket, and the iron core detection photoelectric sensor is connected with the PLC controller and is used for detecting whether the iron core 2 exists on the iron core supporting cylinder 5 of the feeding station.
In order to improve the stability of the vertical lifting movement of the positioning rod base 6, a positioning rod base lifting guide mechanism is arranged in each iron core supporting cylinder 5, and in this embodiment, the positioning rod base lifting guide mechanism is composed of four positioning rod base guide posts 14 vertically fixed on the turntable 3 and guide sleeves arranged on the positioning rod base 6 and matched with the positioning rod base guide posts 14, as shown in fig. 3.
The welding mechanism in this embodiment is composed of a lifting mechanism and a welding gun tray mechanism provided on the lifting mechanism as in the conventional art, and as shown in fig. 1 and 3, the lifting mechanism includes a lifting support 15 provided with the welding gun tray mechanism and a lifting drive device for driving the lifting support 15 to lift. The lifting driving device in the embodiment is a servo cylinder 16 which is symmetrically arranged on two sides of the lifting bracket 15, the servo cylinder is a screw rod driven by a servo motor and a movable block matched with the screw rod through a threaded hole, and the lifting driving device also comprises a bracket provided with a guide rail, and a sliding groove is arranged on the movable block to be matched with the guide rail; the two sides of the lifting bracket 15 are fixed with movable blocks in the corresponding servo cylinders 16. The torch tray mechanism in this embodiment is a fixed torch tray mechanism having a torch tray 17 fixed to the elevating bracket 15 and a plurality of torches 18 provided on the torch tray 17 at regular intervals along the circumference.
In this embodiment, the sheet arranging mechanism is an existing poking sheet arranging mechanism, and the existing poking sheet arranging mechanism is composed of a pressing mechanism and an upper poking mechanism, the upper poking mechanism includes a push rod arranged below the workbench 1 corresponding to the welding station and a punch top driving device (both omitted in fig. 3) for driving the push rod to act, and the workbench 1 is provided with a perforation 19 corresponding to the perforation 12 on the turntable 3 for the push rod to pass through, as shown in fig. 3; the pressing mechanism comprises a pressing guide frame 20 and a pressing driving device 21 for driving the pressing guide frame 20 to act, and a pressing cover 22 for pressing against the iron core is arranged on the pressing guide frame 20. In this embodiment, the pressing driving device 21 is an air cylinder, and the punching driving device is an oil cylinder.
The ejector rod is jacked up under the drive of the jacking driving device and sequentially passes through the perforation 19 on the workbench 1, the perforation 12 on the turntable 3 and the iron core supporting cylinder 5 and then jacked into the iron core 2 to drive the silicon steel sheet of the iron core 2 to bend and arch, and the gland 22 is pressed down against the iron core 2 under the drive of the pressing driving device 21, so that the silicon steel sheet of the iron core 2 falls back and is leveled.
As shown in fig. 1 to 3, the pressing mechanism in this embodiment further includes four pressing guide posts 23 vertically fixed on the workbench 1, and guide sleeves matched with the pressing guide posts 23 are disposed on the pressing guide frame 20.
In this embodiment, four force-bearing pads 24 for supporting the bottom of the turntable 3 are disposed on the workbench 1 corresponding to the welding station, and the force-bearing pads 24 are uniformly spaced around the through holes 19 on the turntable 3, as shown in fig. 3.
The working principle of this embodiment is as follows:
at the beginning, the iron core 2 to be welded is placed on the iron core supporting cylinder 5 on the feeding station of the turntable 3 by a manual or mechanical arm, after the iron core detection photoelectric sensor detects that the iron core 2 is placed in place, a signal is sent to the PLC, and then the jacking device 8, the indexing rotary driving device 4, the welding mechanism and the sheet arranging mechanism are driven to operate under the control of the PLC to finish the following steps:
1) The output ejector rod 8a of the jacking device 8 is jacked out from an initial position a (namely the lowest position), the driving seat 9 and the driving top plate 10 on the driving seat are driven to push the positioning rod base 6 to ascend, and the positioning rod base 6 stops when the jacking position c is up, at the moment, the positioning rod base 6 is jacked and adsorbed at the bottom of the iron core 2, the iron core positioning rod 7 is inserted into a wire slot of the iron core 2, the installation of the iron core positioning rod 7 is completed, and the iron core 2 is positioned;
2) The output ejector rod 8a of the jacking device 8 is retracted to an initial position a (namely a lowest position), the turntable 3 rotates 180 degrees under the drive of the indexing rotary driving device 4, the positioned iron cores 2 are sent to a welding station, a sheet arranging mechanism performs sheet arranging operation under the control of a PLC (programmable logic controller), and then a welding mechanism performs welding operation under the control of the PLC, which are all known technologies and are not described in detail;
3) After the iron cores 2 on the welding station are welded, the PLC controls the indexing rotary driving device 4 to drive the turntable 3 to rotate 180 degrees, the welded iron cores 2 are rewound into the feeding station, after the iron cores 2 are in place, the jacking device 8 corresponding to the feeding station is jacked to the jacking position c again, the positioning rod base 6 and the iron core positioning rod 7 on the positioning rod base are pulled by the matching of the clamping jaw 11 and the clamping jaw groove 6a to retract into the avoidance cavity 13 arranged in the iron core supporting cylinder 5, the iron cores 2 are not interfered to be transferred, and then the welded iron cores 2 are taken out by a manual or mechanical arm to be sent to a next procedure;
4) And (3) for the iron core supporting cylinder 5 from which the iron core 2 is taken away on the feeding station, placing a new iron core 2 to be welded by a manual or mechanical arm, and repeating the steps 1) to 3).
When the iron core 2 is initially placed, the corresponding marks are made on the iron core 2 and the workbench 1 in advance to ensure that the placement position and angle of the iron core 2 are fixed, so that the iron core positioning rod 7 at the bottom can be vertically and unobstructed inserted into the slot of the iron core 2.
The above embodiments are merely for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention to those skilled in the art to understand the present invention and implement the same. All modifications made according to the spirit of the main technical proposal of the invention should be covered in the protection scope of the invention.
Claims (7)
1. The welding feeding mechanism with the iron core positioning rod loading and unloading function comprises a workbench (1) provided with welding stations, and is characterized in that an indexing rotary feeding mechanism is arranged on the workbench (1), the mechanism comprises a turntable (3) and an indexing rotary driving device (4) connected with the turntable (3), a plurality of feeding stations are arranged on the workbench (1) corresponding to the turntable (3), and the feeding stations and the welding stations are uniformly distributed at intervals according to an indexing angle of the turntable (3); an iron core supporting cylinder (5) for placing the iron core (2) is arranged on the turntable (3) corresponding to the welding stations and each feeding station; the automatic loading and unloading mechanism for the iron core positioning rod comprises a positioning rod base (6) arranged in each iron core supporting cylinder (5), a plurality of iron core positioning rods (7) vertically fixed on the positioning rod base (6), and a positioning rod base lifting driving mechanism which is arranged at the bottom of the workbench (1) and corresponds to the iron core supporting cylinders (5) on each feeding station, wherein the positioning rod lifting driving mechanism comprises a jacking device (8) and a driving seat (9) fixed on an output ejector rod (8 a) of the jacking device (8), a driving top plate (10) and clamping jaws (11) are fixed on the driving seat (9), the driving top plate (10) is used for pushing the positioning rod base (6) to ascend, and a magnet used for being adsorbed to the bottom of the iron core (2) is arranged on the positioning rod base (6); the clamping jaw (11) is connected with the clamping jaw driving device, is driven by the clamping jaw driving device and is opened so as to be matched and locked with a clamping jaw groove (6 a) arranged on the positioning rod base (6), and is used for pulling the positioning rod base (6) downwards, the rotary table (3) is provided with holes (12) corresponding to each iron core supporting cylinder (5), and the workbench (1) is also provided with a driving seat (9) corresponding to the holes (12) on the rotary table (3) and holes (12) for driving the top plate (10) and the clamping jaw (11) to move up and down.
2. The welding feeding mechanism with the iron core positioning rod loading and unloading function according to claim 1, further comprising a PLC (programmable logic controller) connected with both the jacking device (8) and the indexing rotary driving device (4), wherein the jacking device (8) is provided with three working positions which are controlled by matching of a proximity sensor and the PLC, the three working positions are respectively an initial position, a yielding position and an upper jacking position according to the jacking height of an output ejector rod (8 a) of the jacking device (8), in the initial position, both a driving base (9) and a driving top plate (10) and a clamping jaw (11) on the driving base are positioned below the turntable (3) and do not interfere with the rotation of the turntable (3), and in the yielding position, the jacking device (8) pulls a positioning rod base (6) and an iron core positioning rod (7) on the positioning rod base to fall back into a yielding cavity (13) arranged in an iron core supporting cylinder (5) and do not interfere with the transfer of an iron core (2); when in upper jacking position, the jacking device (8) drives the positioning rod base (6) to jack and adsorb at the bottom of the iron core (2), so that the iron core positioning rod (7) is inserted into the wire slot of the iron core (2).
3. The welding feeding mechanism with the iron core positioning rod loading and unloading function according to claim 2, wherein a sensor bracket positioned beside an iron core supporting cylinder (5) of the loading station and an iron core detection photoelectric sensor arranged on the sensor bracket are arranged on the workbench (1), and the iron core detection photoelectric sensor is connected with the PLC and used for detecting whether an iron core (2) exists on the iron core supporting cylinder (5) of the loading station.
4. Welding feeding mechanism with iron core positioning rod loading and unloading function according to claim 1, characterized in that a positioning rod base lifting guide mechanism is arranged in each iron core supporting cylinder (5), the positioning rod base lifting guide mechanism comprises a plurality of positioning rod base guide posts (14) vertically fixed on the turntable (3), and the positioning rod base guide posts (14) are matched with guide sleeves arranged on the positioning rod base (6).
5. The welding feeding mechanism with the iron core positioning rod assembling and disassembling function according to claim 1, wherein the feeding station is one, and the feeding station and the welding station are distributed at 180 degrees relative to the center of the turntable (3).
6. The welding feeding mechanism with the iron core positioning rod assembling and disassembling function according to claim 1 or 2, wherein the jacking device (8) is an air cylinder or an oil cylinder.
7. Welding feeding mechanism with iron core positioning rod loading and unloading function according to claim 1 or 2, characterized in that the indexing rotary driving device (4) is an electric indexing disc or a pneumatic indexing disc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172015.9A CN109877490B (en) | 2019-03-07 | 2019-03-07 | Welding feeding mechanism with iron core locating rod loading and unloading function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172015.9A CN109877490B (en) | 2019-03-07 | 2019-03-07 | Welding feeding mechanism with iron core locating rod loading and unloading function |
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| CN109877490A CN109877490A (en) | 2019-06-14 |
| CN109877490B true CN109877490B (en) | 2024-03-15 |
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| CN201910172015.9A Active CN109877490B (en) | 2019-03-07 | 2019-03-07 | Welding feeding mechanism with iron core locating rod loading and unloading function |
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| CN114473204B (en) * | 2022-04-14 | 2022-06-21 | 常州神力电机股份有限公司 | Intelligent assembling equipment and method for motor silicon steel sheet capable of being radially twisted |
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| JPS61138456A (en) * | 1984-12-07 | 1986-06-25 | Matsushita Electric Ind Co Ltd | Current collector welding unit for spiral electrode |
| CN205834470U (en) * | 2016-04-21 | 2016-12-28 | 上海豪精机电有限公司 | A kind of eight station automatic welding machine systems |
| CN107790909A (en) * | 2016-08-30 | 2018-03-13 | 昆山利玛赫自动化科技有限公司 | Silicon steel sheet high-precision automatic welder |
| CN109108512A (en) * | 2018-09-21 | 2019-01-01 | 广东利迅达机器人系统股份有限公司 | A kind of automatic welding work station of Auto Container flap |
| CN209969904U (en) * | 2019-03-07 | 2020-01-21 | 昆山利玛赫自动化科技有限公司 | Welding feeding mechanism with iron core positioning rod loading and unloading functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61138456A (en) * | 1984-12-07 | 1986-06-25 | Matsushita Electric Ind Co Ltd | Current collector welding unit for spiral electrode |
| CN205834470U (en) * | 2016-04-21 | 2016-12-28 | 上海豪精机电有限公司 | A kind of eight station automatic welding machine systems |
| CN107790909A (en) * | 2016-08-30 | 2018-03-13 | 昆山利玛赫自动化科技有限公司 | Silicon steel sheet high-precision automatic welder |
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