CN219684237U

CN219684237U - Spot welding device and full-automatic welding equipment

Info

Publication number: CN219684237U
Application number: CN202320234591.3U
Authority: CN
Inventors: 吴超
Original assignee: Shenzhen Gimech Technology Corp
Current assignee: Shenzhen Gimech Technology Corp
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-09-15
Anticipated expiration: 2033-02-06

Abstract

The utility model belongs to the technical field of motor processing, and particularly relates to a spot welding device and full-automatic welding equipment. The spot welding device includes: the feeding structure comprises a feeding table and a feeding assembly, wherein the feeding assembly is arranged on the feeding table and conveys workpieces towards a material moving station; the welding structure comprises a welding assembly and a material moving assembly, wherein the material moving assembly comprises a fixedly arranged supporting arm and a manipulator connected with the supporting arm, the manipulator moves a workpiece between a material moving station and a welding station, the welding assembly comprises a welding head and a welding driving mechanism for driving the welding head to reciprocate, and the welding driving mechanism drives the welding head to abut against the workpiece so that the welding head welds the workpiece; and a power structure for providing electrical power to the bond head; wherein, the welding structure is arranged at intervals, and one welding head is electrically connected with the power supply structure. The spot welding device can automatically weld workpieces, improve the equipment utilization rate of a power supply structure, reduce welding cost and improve welding efficiency.

Description

Spot welding device and full-automatic welding equipment

Technical Field

The utility model belongs to the technical field of motor processing, and particularly relates to a spot welding device and full-automatic welding equipment.

Background

The motor comprises a rotor shaft, a rotor iron core fixed on the rotor shaft, a commutator fixed on the rotor shaft and each rotor winding embedded on the rotor iron core, wherein enamelled wire heads of each rotor winding are electrically connected with lifting pieces of each commutator piece of the commutator.

With the increasing requirements on the motor, the high rotation speed and the high torque characteristic of the high-performance motor tend to increase the working strength of the motor rotor. If the motor rotor is manufactured by stacking conventional sectional iron cores, the interference fit between the iron cores and the rotor shaft is not firm, and the rotor shaft and the iron cores are required to be assisted in a welding and fixing mode to improve the firm coefficient.

However, in the existing welding process, generally, a worker performs manual feeding to the resistance welding machine, after the welding is completed, the rotor shaft is removed from the resistance welding machine, and the rotor shaft to be welded is placed in the resistance welding machine.

Disclosure of Invention

The embodiment of the utility model aims to provide a spot welding device, which aims to solve the problems of how to automatically weld a rotor shaft and an iron core and improve the utilization rate of a power supply structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a spot welding apparatus is provided for welding a workpiece, the spot welding apparatus having a material moving station and a welding station disposed in spaced relation to the material moving station, the spot welding apparatus comprising:

the feeding structure comprises a feeding table and a feeding assembly, wherein the feeding assembly is arranged on the feeding table and conveys workpieces to the material moving station;

the welding structure comprises a welding assembly and a material moving assembly, wherein the material moving assembly comprises a fixedly arranged supporting arm and a manipulator connected with the supporting arm, the manipulator moves the workpiece between the material moving station and the welding station, the welding assembly comprises a welding head and a welding driving mechanism for driving the welding head to reciprocate, and the welding driving mechanism drives the welding head to abut against the workpiece so as to enable the welding head to weld the workpiece; and

a power structure for providing electrical power to the welding head;

the welding structures are arranged at intervals, and one welding head is electrically connected with the power supply structure.

In some embodiments, the welding driving mechanism comprises a fixedly arranged slide rail, a slide seat slidingly connected with the slide rail, and a welding driver for driving the slide seat to slide reciprocally along the slide rail, wherein the slide rails are arranged at intervals, two ends of the slide seat are respectively slidingly connected with two slide rails, and the welding head is connected with the surface of the slide seat facing the welding station.

In some embodiments, two carriages are provided, one of the carriages is connected to the welding driver, the other one of the carriages is connected to the welding head, the welding driving mechanism further includes an elastic member having an elastic restoring force, and two ends of the elastic member are respectively connected to the two carriages.

In some embodiments, the elastic element is a tube spring, wherein a sliding seat connected with the welding head is provided with a sliding groove, the welding driving mechanism further comprises a guide post penetrating through the tube spring and a positioning ring sleeved outside the guide post, one end of the guide post is connected with one sliding seat, the other end of the guide post is slidably arranged on the sliding groove, one end of the tube spring is abutted against the positioning ring, and the positioning ring slides a preset distance relative to the guide post so as to adjust the initial deformation amount of the tube spring.

In some embodiments, the spot welding device further comprises a lifting and rotating structure arranged at the welding station, the lifting and rotating structure comprises a positioning block with a rotating hole, a lifting and rotating shaft penetrating through the rotating hole, and a rotating driver connected with the positioning block and used for driving the lifting and rotating shaft to rotate, and the workpiece is arranged at the lifting and rotating shaft.

In some embodiments, the lifting and turning structure further comprises a guide seat and a lifting driver connected with the guide seat, wherein the positioning block is connected with the guide seat in a sliding manner, and the lifting driver is used for driving the positioning block to slide back and forth along the guide seat.

In some embodiments, the welding structure further comprises an exhaust pipe located at the welding station, and an air inlet end of the exhaust pipe is arranged in a horn shape.

In some embodiments, the manipulator includes a cross beam connected to the support arm, a slider slidably disposed on the cross beam, a material moving driver driving the slider to reciprocate along the cross beam, and a clamping arm connected to the slider, the clamping arm moving the workpiece between the material moving station and the welding station.

In some embodiments, the feeding assembly comprises a feeding driver, rollers and a conveying belt for placing the workpieces, wherein a plurality of rollers are sequentially arranged at intervals, each roller supports the conveying belt, and at least one roller is connected with the feeding driver.

In a second aspect, a full-automatic welding apparatus is provided, which includes the spot welding device.

The utility model has the beneficial effects that: the spot welding device comprises a feeding structure, a welding structure and a power supply structure, wherein the welding assembly comprises a welding head and a welding driving mechanism for driving the welding head to reciprocate, and the welding driving mechanism drives the welding head to abut against a workpiece so that the welding head can automatically weld the workpiece, and the labor cost of welding is reduced. The two welding heads are electrically connected with the power supply structure, so that the equipment utilization rate of the power supply structure can be improved, the welding cost is reduced, and the welding efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or exemplary technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic perspective view of a spot welding apparatus according to an embodiment of the present utility model;

fig. 2 is a partial enlarged view of the spot welding apparatus of fig. 1 at a;

FIG. 3 is a schematic perspective view of the welding assembly of FIG. 1;

FIG. 4 is a schematic perspective view of the elevating and revolving structure of FIG. 1;

FIG. 5 is a schematic perspective view of the transfer assembly of FIG. 1;

fig. 6 is a schematic perspective view of a full-automatic welding apparatus according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

100. a spot welding device; 101. a material transferring station; 102. a welding station; 200. a feeding structure; 201. a feeding table; 202. a feeding assembly; 2021. a conveyor belt; 2022. a roller; 110. a workpiece; 300. welding a structure; 301. welding the assembly; 302. a material moving assembly; 500. a lifting and rotating structure; 3019. a welding head; 303. an exhaust pipe; 3011. a welding driver; 3012. a slide; 3013. a positioning ring; 3014. an elastic member; 3015. positioning a sliding sleeve; 3016. a positioning groove; 3020. a slide rail; 3018. a chute; 3017. a guide post; 501. a lifting rotary shaft; 502. a positioning block; 503. a slewing drive; 504. a lifting driver; 505. a guide seat; 5051. positioning columns; 5052. a lower positioning plate; 5053. an upper positioning plate; 506. driven wheel; 507. a driving wheel; 3021. a support arm; 3022. a material moving driver; 3023. a clamping arm; 3024. a cross beam; 3025. a slide block; 3026. a manipulator; 700. a blanking structure; 701. a blanking station; 701. a blanking station;

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and are not intended to indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art as appropriate. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

Referring to fig. 1 to 3, a spot welding apparatus 100 is provided for welding a workpiece 110, where the spot welding apparatus 100 has a material transferring station 101 and a welding station 102 spaced from the material transferring station 101. In this embodiment, the workpiece 110 includes a rotor shaft and an iron core, and the rotor shaft and the iron core can be welded by the spot welding apparatus 100, so as to improve the reliability of the connection between the rotor shaft and the iron core. In other embodiments, the workpiece 110 may be other structural members, which are not limited herein, and may be selected according to practical situations.

Referring to fig. 1 to 3, the spot welding apparatus 100 includes a feeding structure 200, a welding structure 300, and a power supply structure. The feeding structure 200 comprises a feeding table 201 and a feeding assembly 202 which is arranged on the feeding table 201 and horizontally conveys the workpiece 110 towards the material moving station 101; the workpieces 110 are arranged linearly on the feed assembly 202 and sequentially pass through the transfer station 101.

The welding structure 300 includes a welding assembly 301 and a material transferring assembly 302, where the material transferring assembly 302 includes a support arm 3021 that is fixedly disposed and a manipulator 3026 that is connected to the support arm 3021, and the manipulator 3026 moves the workpiece 110 between the material transferring station 101 and the welding station 102, and it is understood that the manipulator 3026 moves the workpiece 110 to be welded from the material transferring station 101 to the welding station 102, or moves the welded workpiece 110 from the welding station 102 to the feeding assembly 202 of the blanking station 701701.

Referring to fig. 1 to 3, the welding assembly 301 includes a welding head 3019 and a welding driving mechanism for driving the welding head 3019 to reciprocate, where the welding driving mechanism drives the welding head 3019 to abut against the workpiece 110 so that the welding head 3019 automatically welds the workpiece 110, and after the welding of the workpiece 110 is completed, the welding driving mechanism drives the welding head 3019 to separate from the workpiece 110 so that the robot 3026 moves the workpiece 110 to the feeding assembly 202. The power supply structure is configured to provide electrical power to the bond head 3019, and it is understood that the power supply structure is capable of providing the bond head 3019 with the voltage it requires so that the bond head 3019 can automatically perform resistance welding on the workpiece 110. Two welding heads 3019 are alternatively and electrically connected to the power supply structure, that is, when one welding head 3019 is in a welding state, the other welding head 3019 is in a blanking and feeding state; after the welding head 3019 in the welding state finishes welding the workpiece 110, the power supply structure is switched to the other welding head 3019 to circulate, so that the equipment utilization rate of the power supply structure can be improved, the welding cost can be reduced, and the welding efficiency can be improved.

Referring to fig. 1 to 3, the spot welding apparatus 100 provided in this embodiment includes a feeding structure 200, a welding structure 300, and a power supply structure, the welding assembly 301 includes a welding head 3019 and a welding driving mechanism for driving the welding head 3019 to reciprocate, and the welding driving mechanism drives the welding head 3019 to abut against the workpiece 110, so that the welding head 3019 automatically welds the workpiece 110, thereby reducing labor cost of welding. One of the two welding heads 3019 is electrically connected with the power supply structure, namely, when one welding head 3019 is in a welding state, the other welding head 3019 is in a blanking and loading state; after the welding head 3019 in the welding state finishes welding the workpiece 110, the power supply structure is switched to the other welding head 3019 to circulate, so that the equipment utilization rate of the power supply structure can be improved, the welding cost can be reduced, and the welding efficiency can be improved.

Referring to fig. 1 to 3, it will be appreciated that two circuits may be led out from the power supply structure, one of the circuits supplies power to one of the welding heads 3019, the other circuit supplies power to the other welding head 3019, and the controller controls the two circuits to be turned on and off.

Referring to fig. 1 to 3, in some embodiments, the welding driving mechanism includes a fixedly disposed slide rail 3020, a slide 3012 slidingly connected to the slide rail 3020, and a welding driver 3011 for driving the slide 3012 to slide reciprocally along the slide rail 3020, two slide rails 3020 are arranged at intervals, two ends of the slide 3012 are slidingly connected to the two slide rails 3020 respectively, and the welding head 3019 is connected to a surface of the slide 3012 facing the welding station 102.

Optionally, the sliding rails 3020 are disposed on the machine, and the length direction of the sliding rails 3020 is horizontally disposed, the welding driver 3011 is an air cylinder, a piston rod of the air cylinder is connected to the sliding seat 3012, and the air cylinder is used for driving the sliding seat 3012 to slide reciprocally along the length direction of the two sliding rails 3020.

Referring to fig. 1 to 3, in some embodiments, two carriages 3012 are provided, one of the carriages 3012 is connected to the welding driver 3011, the other carriage 3012 is connected to the welding head 3019, the welding driving mechanism further includes an elastic member 3014 having an elastic restoring force, and two ends of the elastic member 3014 are respectively connected to the two carriages 3012. Optionally, when the welding driver 3011 drives the welding head 3019 to be located at the welding station 102 and welds the workpiece 110, the elastic member 3014 is in a compressed state, the impact of the welding head 3019 on the workpiece 110 can be buffered by the elastic member 3014, and the pressure of the welding head 3019 abutting against the workpiece 110 can be adjusted by adjusting the deformation amount of the elastic member 3014, so that the welding head 3019 meets different welding pressure requirements.

Referring to fig. 1 to 3, in some embodiments, the elastic member 3014 is a tube spring, a sliding slot 3018 is formed in the sliding seat 3012 connected to the welding head 3019, the welding driving mechanism further includes a guide post 3017 penetrating through the tube spring and a positioning ring 3013 sleeved on the guide post 3017, one end of the guide post 3017 is connected to one of the sliding seats 3012, the other end of the guide post 3017 is slidably disposed in the sliding slot 3018, one end of the tube spring abuts against the positioning ring 3013, and the positioning ring 3013 slides a predetermined distance relative to the guide post 3017 to adjust an initial deformation amount of the tube spring.

It will be appreciated that the amount of initial deflection of the coil spring may be adjusted, as may the pressure at which the weld head 3019 abuts the workpiece 110.

It can be appreciated that the positioning ring 3013 is provided with a positioning threaded hole, and is screwed and locked in the positioning threaded hole by a positioning bolt and abuts against the guide post 3017, so that the connection position of the guide post 3017 and the positioning ring 3013 is simple in operation process.

Referring to fig. 1 to 3, optionally, a positioning sliding sleeve 3015 is disposed in the sliding chute 3018, a positioning groove 3016 is provided on the outer surface of the positioning sliding sleeve 3015, a notch edge of the sliding chute 3018 is clamped into the positioning groove 3016, one end of the guiding post 3017 slides through the positioning sliding sleeve 3015, and one end of the tube spring abuts against the positioning sliding sleeve 3015. Ease of disassembly and assembly is provided by positioning the sliding sleeve 3015 and reducing wear of the guide post 3017.

Referring to fig. 1 to 3, alternatively, two guide posts 3017 and two tube springs are provided, and the two tube springs are connected to the two guide posts 3017, respectively.

Referring to fig. 4, in some embodiments, the spot welding apparatus 100 further includes a lifting and turning structure 500 disposed at the welding station 102, the lifting and turning structure 500 includes a positioning block 502 having a rotation hole, a lifting and turning shaft 501 penetrating the rotation hole, and a turning driver 503 connected to the positioning block 502 and used for driving the lifting and turning shaft 501 to rotate, and the workpiece 110 is disposed on the lifting and turning shaft 501.

Referring to fig. 4, optionally, the rotary driver 503 is a servo motor, a driving wheel 507 is disposed on an output shaft of the servo motor, a driven wheel 506 is disposed at a lower end of the lifting rotary shaft 501, and the driving wheel 507 and the driven wheel 506 are connected through a synchronous belt, so that the rotary driver 503 can drive the lifting rotary shaft 501 to rotate, and meanwhile, the workpieces 110 located on the lifting rotary shaft 501 synchronously rotate, so that the corresponding welding heads 3019 can weld the workpieces 110 by 360 degrees, and welding quality and reliability are improved.

Referring to fig. 4, in some embodiments, the lifting and turning structure 500 further includes a guide holder 505 and a lifting driver 504 connected to the guide holder 505, where the positioning block 502 is slidably connected to the guide holder 505, and the lifting driver 504 is used to drive the positioning block 502 to slide reciprocally along the guide holder 505.

Referring to fig. 4, optionally, the lifting driver 504 is also an air cylinder, the guide holder 505 includes an upper positioning plate 5053, a lower positioning plate 5052 and a positioning post 5051, one end of the positioning post 5051 is connected to the upper positioning plate 5053, the other end of the positioning post 5051 is connected to the lower positioning plate 5052, a plurality of positioning posts 5051 are arranged at intervals, the positioning block 502 is slidably connected to each positioning post 5051, and the lifting driver 504 is connected to the lower positioning plate 5052.

In some embodiments, the welding structure 300 further includes an exhaust pipe 303 located at the welding station 102, and an air inlet end of the exhaust pipe 303 is disposed in a horn shape.

It can be appreciated that in the welding process, welding smoke is generated, the exhaust pipe 303 is connected with the exhaust fan, so that the welding smoke can be pumped away, pollution is prevented, and the air inlet end of the exhaust pipe 303 is arranged in a horn shape, so that the welding smoke can be pumped away as much as possible.

Referring to fig. 5, in some embodiments, the manipulator 3026 includes a cross beam 3024 connected to the support arm 3021, a slide block 3025 slidably disposed on the cross beam 3024, a material moving driver 3022 for driving the slide block 3025 to reciprocate along the cross beam 3024, and a clamping arm 3023 connected to the slide block 3025, where the clamping arm 3023 moves the workpiece 110 between the material moving station 101 and the welding station 102. Optionally, a plurality of support arms 3021 are disposed at intervals, each support arm 3021 is connected to a beam 3024, and the material moving driver 3022 may also be a cylinder, where a piston rod of the cylinder is connected to the slider 3025.

Referring to fig. 5, in some embodiments, the feeding assembly 202 includes a feeding driver, rollers 2022 and a conveyor 2021 on which the workpieces 110 are placed, the rollers 2022 are sequentially arranged at intervals, each roller 2022 supports the conveyor 2021, and at least one roller 2022 is connected to the feeding driver, which may be a servo motor, and the feeding driver drives the corresponding roller 2022 to rotate, so that the conveyor 2021 sequentially transfers the workpieces 110 to the transfer station 101.

Referring to fig. 6, the present utility model further provides a full-automatic welding apparatus, which includes a spot welding device 100, and the specific structure refers to the above embodiment.

In some embodiments, the fully automated fusion apparatus has a blanking station 701701 and a discharge structure at the blanking station 701701, upon which the welded work piece 110 is placed and transported to the collection area.

The foregoing is merely an alternative embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. The spot welding device for weld the work piece, the spot welding device have move material station and with move the welding station that material station interval set up, its characterized in that, the spot welding device includes:

a power structure for providing electrical power to the welding head;

2. The spot welding apparatus of claim 1 wherein: the welding driving mechanism comprises a sliding rail, a sliding seat and a welding driver, wherein the sliding rail is fixedly arranged, the sliding seat is connected with the sliding rail in a sliding mode, the welding driver is used for driving the sliding seat to slide along the sliding rail in a reciprocating mode, the two sliding rails are arranged at intervals, two ends of the sliding seat are respectively connected with the two sliding rails in a sliding mode, and the welding head is connected with the surface of the sliding seat, facing the welding station.

3. The spot welding apparatus as defined in claim 2, wherein: the welding driving mechanism comprises a welding head, a welding driver, a welding head, two sliding seats and an elastic piece, wherein the two sliding seats are arranged, the welding driver is connected with one sliding seat, the other sliding seat is connected with the welding head, the welding driving mechanism further comprises the elastic piece with elastic restoring force, and two ends of the elastic piece are respectively connected with the two sliding seats.

4. A spot welding apparatus as defined in claim 3, wherein: the elastic piece is a tube spring, one of the sliding seats connected with the welding head is provided with a sliding groove, the welding driving mechanism further comprises a guide post penetrating through the tube spring and a positioning ring sleeved on the guide post, one end of the guide post is connected with one of the sliding seats, the other end of the guide post is slidably arranged on the sliding groove, one end of the tube spring is abutted to the positioning ring, and the positioning ring slides a preset distance relative to the guide post so as to adjust the initial deformation quantity of the tube spring.

5. The spot welding apparatus as defined in any one of claims 1-4, wherein: the spot welding device further comprises a lifting and rotating structure arranged at the welding station, the lifting and rotating structure comprises a positioning block with a rotating hole, a lifting and rotating shaft penetrating through the rotating hole and a rotating driver connected with the positioning block and used for driving the lifting and rotating shaft to rotate, and the workpiece is arranged on the lifting and rotating shaft.

6. The spot welding apparatus of claim 5, wherein: the lifting and rotating structure further comprises a guide seat and a lifting driver connected with the guide seat, the positioning block is connected with the guide seat in a sliding mode, and the lifting driver is used for driving the positioning block to slide back and forth along the guide seat.

7. The spot welding apparatus as defined in any one of claims 1-4, wherein: the welding structure further comprises an exhaust pipe positioned at the welding station, and the air inlet end of the exhaust pipe is arranged in a horn shape.

8. The spot welding apparatus as defined in any one of claims 1-4, wherein: the manipulator comprises a cross beam connected with the supporting arm, a sliding block arranged on the cross beam in a sliding manner, a material moving driver for driving the sliding block to reciprocate along the cross beam, and a clamping arm connected with the sliding block, wherein the clamping arm moves between the material moving station and the welding station.

9. The spot welding apparatus as defined in any one of claims 1-4, wherein: the feeding assembly comprises a feeding driver, rollers and a conveyor belt for placing the workpieces, wherein the rollers are sequentially arranged at intervals, each roller supports the conveyor belt, and at least one roller is connected with the feeding driver.

10. Full-automatic welding equipment, characterized by comprising a spot welding device according to any one of claims 1-9.