Multi-station plug-in welding robot

Abstract

The application discloses a multi-station plug-in welding robot, which comprises a rack, a rotating mechanism and a welding mechanism. The rack is provided with multiple stations at intervals. The rotating mechanism is arranged at the middle part of the rack and comprises a first driving member, a rotating disc drivenly connected to the first driving member and a jig arranged on the rotating disc. The multiple stations are distributed along the circumference of the rotating disc. The rotating mechanism is used for conveying the jig between the multiple stations. The multiple stations comprise a feeding station, a first station and a second station. The welding mechanism comprises two welding assemblies. The two welding assemblies are arranged on the first station and the second station respectively and are used for welding different welding points of a product in sequence. The welding assembly comprises two welding devices. The two welding devices are used for welding and fixing the opposite two pins of the same electronic component on the product. The technical scheme of the application can improve the welding production efficiency of the product which needs to weld multiple electronic components.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, in particular to a multi-station plug-in welding robot. Background Art

[0002] The welding equipment currently used to solder and fix electronic components to electronic products can usually only complete the welding operation of one electronic component. If two or more electronic components need to be soldered to the same electronic product, the product needs to be repeatedly loaded and unloaded on multiple welding equipment before the welding operation of all electronic components can be completed, resulting in low welding production efficiency of the product. Summary of the Invention

[0003] The main purpose of the present invention is to provide a multi-station plug-in welding robot, which aims to improve the welding production efficiency of products that require welding multiple (referring to two or more) electronic components.

[0004] To achieve the above-mentioned object, the present invention proposes a multi-station plug-in welding robot for welding electronic components to products, and the multi-station plug-in welding robot comprises:

[0005] The rack is equipped with multiple workstations at intervals;

[0006] a rotating mechanism disposed in the middle of the frame, the rotating mechanism comprising a first driving member, a turntable drivingly connected to the first driving member, and a fixture disposed on the turntable, the plurality of workstations being spaced apart along the circumference of the turntable, the rotating mechanism being used to transfer the fixture between the plurality of workstations, the plurality of workstations comprising a loading station, a first station, and a second station; and

[0007] The welding mechanism includes two welding assemblies, which are respectively arranged at the first workstation and the second workstation and are used to successively weld and fix different electronic components to the product. The welding assembly includes two welders, which are used to respectively weld and fix two opposite pins of the same electronic component to the product.

[0008] Optionally, the multiple workstations also include a third workstation and a fourth workstation, the welding mechanism also includes two welding assemblies respectively arranged at the third workstation and the fourth workstation, the jig is provided with a first positioning groove and a second positioning groove spaced apart along the circumference of the turntable, the first positioning groove and the second positioning groove are used to respectively position and install one of the products, the welding assemblies on the first workstation and the second workstation are used to perform welding operations on one of the products in the first positioning groove, and the welding assemblies on the third workstation and the fourth workstation are used to perform welding operations on another product in the second positioning groove.

[0009] Optionally, the loading station, the first station, the second station, the third station, and the fourth station are arranged in sequence along the circumference of the turntable.

[0010] Optionally, the multiple workstations also include a unloading station located between the fourth workstation and the loading station, and the multi-station plug-in welding robot also includes a unloading mechanism located at the unloading station, the unloading mechanism including a manipulator and a conveyor, and the manipulator is used to clamp the product located on the jig and transfer it to the conveyor.

[0011] Optionally, the fixture is provided with a positioning groove for positioning and installing the product, and the rotating mechanism further includes a clamping assembly movably connected to the turntable, and the clamping assembly is used to press the product into the positioning groove.

[0012] Optionally, the clamping assembly includes a guide base provided on the edge of the turntable, a guide rod slidably connected to the guide base, an elastic member connecting the guide base and the guide rod, and a pressure block installed on the guide rod, the pressure block is located above the positioning groove, the pressure block is used to press the product or the electronic component, the guide rod slides in the up and down directions and drives the pressure block to move away from or close to the positioning groove, and the elastic member is used to make the pressure block tend to approach the positioning groove.

[0013] Optionally, the multi-station plug-in welding robot further includes a lifting cylinder provided at the loading station, wherein the lifting cylinder is located below the guide rod, and the lifting cylinder is used to drive the guide rod to slide upward.

[0014] Optionally, the multi-station plug-in welding robot further includes a feeding mechanism provided at the second station, the feeding mechanism including a feeder and a feeding assembly, and the feeding assembly is used to transfer the electronic components on the feeder to the product located on the jig.

[0015] Optionally, the feeding assembly includes a rotating member and two grabbing members connected to opposite sides of the rotating member, the grabbing members are used to grab or place the electronic components, the feeding assembly is located between the feeder and the jig located at the second workstation, and the rotating member is used to drive the grabbing members to rotate and switch positions between the jig and the feeder.

[0016] Optionally, the rotating member includes a driving motor, a reducer drivingly connected to the driving motor, and a mounting base drivingly connected to the reducer. The two grasping members are respectively arranged at opposite ends of the mounting base. The grasping member includes a second driving member installed on the mounting base, a third driving member arranged on the second driving member, a pneumatic finger arranged on the third driving member, and a clamping claw drivingly connected to the pneumatic finger. The pneumatic finger is located above the feeder and is used to control the clamping claw to clamp or release the electronic component. The second driving member is used to drive the third driving member to approach or move away from the feeder in the up and down directions. The third driving member is used to drive the pneumatic finger to rotate. The rotation axis of the pneumatic finger is arranged in parallel with the tangent of the turntable on the second workstation.

[0017] Optionally, the mounting base is provided with two opposing slide rails, and the two slide rails are spaced apart along the width direction of the mounting base, the grabbing member also includes a mounting bracket slidably connected to the two slide rails, the second driving member is provided on the mounting bracket, and the rotating member also includes two telescopic cylinders arranged corresponding to the two slide rails, the telescopic direction of the telescopic cylinder is arranged in parallel with the extension direction of the slide rail, one end of the telescopic cylinder is connected to the mounting bracket of one of the grabbing members, and the other end is connected to the mounting bracket of the other grabbing member.

[0018] In the technical solution of the present invention, the two welding assemblies on the multi-station plug-in welding robot are used to sequentially complete welding operations on different welding points of the same product, avoiding the problems of low positioning accuracy and low production efficiency caused by repeated loading and unloading of the same product between different welding robots, thereby improving the production efficiency of the product and maintaining consistent positioning references for different welding points on the product, thereby improving welding quality. Secondly, using two welders to simultaneously weld and fix two opposing pins on an electronic component can further improve the product's welding production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of an embodiment of a multi-station plug-in welding robot according to the present invention;

[0021] Figure 2 for Figure 1 Top view of the multi-station plug-in welding robot;

[0022] Figure 3 for Figure 1 A partial enlarged view of the multi-station plug-in welding robot at point A;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure of the middle clamping assembly and the lifting cylinder;

[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the feeding mechanism;

[0025] Figure 6 for Figure 5 A partial enlarged view of the feeding mechanism at point B;

[0026] Figure 7 for Figure 5 Main view of the feeding mechanism;

[0027] Figure 8 for Figure 1 Schematic diagram of the structure of the feeding mechanism and welder located at the fourth station.

[0028] Description of Figure Numbers:

[0029]

[0030] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The welding equipment currently used to solder and fix electronic components to electronic products can usually only complete the welding operation of one electronic component. If two or more electronic components need to be soldered to the same electronic product, the product needs to be repeatedly loaded and unloaded on multiple welding equipment before the welding operation of all electronic components can be completed, resulting in low welding production efficiency of the product.

[0035] In view of this, the present invention proposes a multi-station plug-in welding robot for welding electronic components on products. Figure 1 、 2 And 8, in one embodiment of the present invention, the multi-station plug-in welding robot includes:

[0036] The frame 10 is provided with a plurality of workstations at intervals;

[0037] a rotating mechanism 20 disposed in the middle of the frame 10, the rotating mechanism 20 including a first driving member 21, a turntable 22 drivingly connected to the first driving member 21, and a fixture 230 disposed on the turntable 22, wherein the plurality of workstations are spaced apart along the circumference of the turntable 22, and the rotating mechanism 20 is used to transfer the fixture 230 between the plurality of workstations, including the loading station 11, the first workstation 12, and the second workstation 13; and

[0038] The welding mechanism includes two welding assemblies 31, which are respectively arranged on the first station 12 and the second station 13, and are used to weld different electronic components to the product in sequence. The welding assembly 31 includes two welders 32, and the two welders 32 are used to weld two opposite pins of the same electronic component to the product respectively.

[0039] In the technical solution of the present invention, different electronic components are successively welded and fixed on the product through the two welding assemblies 31 on the multi-station plug-in welding robot, avoiding the problem of low positioning accuracy and low production efficiency caused by repeated loading and unloading of the same product between different welding robots, thereby improving the production efficiency of the product, and being able to keep the positioning reference of different welding points on the product consistent, thereby improving the welding quality. Secondly, using two welders 32 to weld and fix two opposite pins on an electronic component at the same time can further improve the welding production efficiency of the product. It should be noted that if the welder 32 is set as an electric soldering iron, then by using two electric soldering irons to abut the two pins of the electronic component, it can also avoid the electronic component from shifting and causing problems of poor welding quality, such as cold soldering problems, thereby improving the welding quality of the product.

[0040] In this embodiment, the two welding devices 32 can be both configured as electric soldering irons, or laser welders, or a combination of electric soldering irons and laser welders. In addition, the first driving member 21 can be configured as one of a servo motor, a stepping motor, a hydraulic motor, or a pneumatic motor.

[0041] Reference Figure 3 In this embodiment, the fixture 230 further includes a positioning groove 231 for positioning and installing the product. The rotating mechanism 20 also includes a clamping assembly 240 movably connected to the turntable 22. The clamping assembly 240 is used to press the product into the positioning groove 231. In this way, the clamping assembly 240 provides a clamping force for the product, ensuring that the product is always accurately positioned and installed in the positioning groove 231 during the welding process, thereby improving the positioning accuracy of the product and further improving the welding quality of the product.

[0042] Reference Figure 3In this embodiment, the clamping assembly 240 further includes a guide base 241 disposed on the edge of the turntable 22, a guide rod 242 slidably connected to the guide base 241, an elastic member 243 connecting the guide base 241 and the guide rod 242, and a pressure block 244 mounted on the guide rod 242. The pressure block 244 is located above the positioning groove 231 and is used to press the product or the electronic component. The guide rod 242 slides in the vertical direction and drives the pressure block 244 away from or toward the positioning groove 231. The elastic member 243 is used to force the pressure block 244 toward the positioning groove 231. In this way, the elastic member 243 ensures that the pressure block 244 continuously provides a pressing force on the product. This not only simplifies the structure and helps reduce the manufacturing cost of the welding robot, but also provides a continuous and stable pressing force, which helps ensure the positioning accuracy of the product, thereby improving the welding quality of the product. Secondly, to release the pressure of the product from the clamping block 244, one only needs to apply force to the elastic member 243 to elastically deform it and move the clamping block 244 upward. This is a simple and quick operation. It should be noted that the elastic member 243 can be a compression spring, spring steel, elastic silicone, or elastic rubber. However, this design is not limited to this. In other embodiments, the clamping assembly includes a bracket disposed above the fixture and a set screw threadedly connected to the bracket. The set screw passes through one end of the bracket and presses against the product in the positioning groove.

[0043] Reference Figure 3 and 4 In this embodiment, the multi-station plug-in welding robot further includes a lifting cylinder 40 provided at the loading station 11. The lifting cylinder 40 is located below the guide rod 242 and is used to drive the guide rod 242 to slide upward. It should be noted that the guide rod 242 moves between the multiple stations as the turntable 22 rotates. When a guide rod 242 moves to the loading station 11, it is just above the lifting cylinder 40. At this time, the piston 41 of the lifting cylinder 40 extends and pushes the guide rod 242 upward, thereby moving the pressure block 244 on the guide rod 242 away from the product in the positioning groove 231. It can be understood that when the lifting cylinder 40 is not working, the guide rod 242 will tend to move downward due to the force of the elastic member 243, that is, the pressure block 244 will continue to press on the product. In this way, the lifting cylinder 40 is used to drive the pressure block 244 on the guide rod 242 to move upward, thereby releasing the pressure of the pressure block 244 on the product. The worker only needs to be responsible for loading the product into the positioning groove 231, which makes it convenient for the worker to operate and reduces the working hours required for loading, thereby improving production efficiency.

[0044] Reference Figure 3 and 4In this embodiment, the lifting cylinder 40 further includes a piston member 41, the outer end of which is provided with a slot 42. The bottom wall of the slot 42 is provided with a pin hole (not shown in the drawings). The guide rod 242 includes a rod body 245 and a stopper provided on one end of the rod body 245 near the piston member 41. The stopper includes a latch portion 246 for engaging with the pin hole and a support portion 247 connecting the latch portion 246 and the rod body 245. The support portion 247 has two opposing abutment surfaces for slidingly abutting against the side walls of the slot 42. The slot 42 has a notch that gradually widens toward the guide rod 242. This makes the driving process of the guide rod 242 by the lifting cylinder 40 smoother and more stable, and reduces operating noise.

[0045] Reference Figure 3 and 4 In this embodiment, the slots 42 optionally extend along the circumference of the turntable 22 and penetrate opposite sides of the piston 41. This allows the guide rod 242 to remain in the slot 42 even if the lift cylinder 40 malfunctions or fails, preventing the guide rod 242 from promptly disengaging from the slot 42 and the turntable 22 resumes its operation. In this case, the guide rod 242 will not collide with the piston 41 and become stuck in the slot 42, thereby preventing serious damage to the welding robot and extending its service life.

[0046] Reference Figures 1 to 3 In this embodiment, the multiple workstations further include a third workstation 14 and a fourth workstation 15. The welding mechanism also includes two welding assemblies 31 located at the third workstation 14 and the fourth workstation 15. The positioning grooves 231 on the jig 230 include a first positioning groove 232 and a second positioning groove 233. The first positioning grooves 232 and the second positioning grooves 233 are spaced apart along the circumference of the turntable 22 and are used to position and install a product respectively. The welding assemblies 31 at the first workstation 12 and the second workstation 13 are used to weld a product within the first positioning groove 232, and the welding assemblies 31 at the third workstation 14 and the fourth workstation 15 are used to weld another product within the second positioning groove 233. In this way, by using the two welding assemblies 31 at the third workstation 14 and the fourth workstation 15 to weld another product, the production efficiency of the welding robot can be improved. Specifically, workers can load two products onto the jig 230 at one time, and then the two products can be welded and fixed to the electronic components under the welding operation of the four welding components 31, thereby shortening the working hours required for the loading and unloading process of each product, as well as the working hours required for transfer between different workstations, thereby improving the production efficiency of the welding robot, and reducing the energy consumed when transferring each product, thereby reducing the average production energy consumption of the welding robot.

[0047] Reference Figure 2In this embodiment, the loading station 11, the first station 12, the second station 13, the third station 14, and the fourth station 15 are optionally arranged in sequence along the circumference of the turntable 22. This makes the structural layout of the welding robot more compact, thereby facilitating a miniaturized design of the equipment and reducing the equipment's footprint. However, the present design is not limited to this. In other embodiments, the loading station, the first station, the third station, the second station, and the fourth station may also be arranged in sequence along the circumference of the turntable.

[0048] Reference Figure 1 and 2 In this embodiment, the plurality of workstations further includes a blanking station 16 located between the fourth workstation 15 and the loading station 11. The multi-station plug-in welding robot also includes a blanking mechanism 50 located at the blanking station 16. The blanking mechanism 50 includes a manipulator 51 and a conveyor 52. The manipulator 51 is used to grip the product on the fixture 230 and transfer it to the conveyor 52. In this way, the use of the blanking mechanism 50 to achieve automatic product unloading can reduce the labor intensity of workers and avoid the problem of low work efficiency caused by workers' emotions or fatigue, thereby reducing the unloading time for each product and improving the production efficiency of the welding robot. It should be noted that the manipulator 51 can be a gripping manipulator 51 or a suction cup manipulator 51.

[0049] In this embodiment, optionally, the conveyor 52 is a belt conveyor. However, the present design is not limited thereto. In other embodiments, the conveyor can also be a roller conveyor.

[0050] Reference Figure 1 、 2 And 5, in this embodiment, further, the multi-station plug-in welding robot also includes two feeding mechanisms 60 respectively arranged on the second station 13 and the fourth station 15, and the feeding mechanism 60 includes a flyer 61 and a feeding assembly, and the feeding assembly is used to transfer the electronic components on the flyer 61 to the product located on the fixture 230. It should be noted that the flyer 61 product belongs to a mature technology in this technical field, so it will not be described in detail here. In this way, the automatic loading function of electronic components is realized by the flyer 61 and the feeding assembly, thereby reducing the number of workers and the labor intensity of workers, and making the loading operation of electronic components more standardized, which can not only improve the welding quality of the product, but also improve the production efficiency of the product.

[0051] It should be further explained that in this example, the product has four welding pins, and these four welding pins need to be welded and fixed to two electronic components, including an inductor and a resistor, wherein the inductor has four pins and the resistor has two pins. The lifting cylinder 40 drives the guide rod 242 and the pressure block 244 located at the loading station 11 to rise, so that the worker can place the two semi-finished products into the first positioning groove 232 and the second positioning groove 233 located on the loading station 11, respectively, and then place the two inductors on the two products respectively. Then, the lifting cylinder 40 cancels the lifting effect on the guide rod 242, causing the pressure block 244 to fall back to its initial position and press the inductor on the product, so that the four pins of the inductor are respectively in contact with the four welding pins of the product. Then, the turntable 22 rotates and drives the jig 230 to transfer from the loading station 11 to the first station 12. The two welders 32 on the first station 12 respectively weld the two pins of the inductor to the first product. When the jig 230 is transferred to the second station 13, the feeding assembly on the second station 13 first transfers the resistor on the feeder 61 to the first product, and aligns the two pins of the resistor with the other two pins of the first product to be welded. The two welders 32 on the second station 13 then weld the two pins of the resistor and the other two pins of the inductor to the two pins of the first product to be welded, one-to-one, to complete the welding operation on the first product. Then, when the jig 230 is transferred to the third station 14 and the fourth station 15, the welders 32 and feeding mechanism 60 on these two stations perform the same operation, except that the objects are the second product on the jig 230. Finally, the jig 230 is transferred to the unloading station 16, and the two products are gripped by the robot 51 and transferred to the conveyor 52. The welding robot has completed its production cycle.

[0052] Reference Figures 5 to 8In this embodiment, the feeding assembly further includes a rotating member 620 and two grabbing members 630 connected to opposite sides of the rotating member 620. The grabbing members 630 are used to grab or place electronic components. The feeding assembly is located between the flyer 61 and the jig 230 located at the second workstation 13. The rotating member 620 is used to drive the grabbing members 630 to rotate and switch positions between the jig 230 and the flyer 61. Specifically, when one of the grabbing members 630 grabs an electronic component on the flyer 61, the other grabbing member 630 is just above the jig 230 and places the electronic component on the product on the jig 230. Then, the grabbing member 630 that has placed the electronic component rotates to move above the flyer 61 to grab a new electronic component. At this time, the grabbing member 630 that originally grabbed the electronic component can also place the electronic component on the product of the newly arrived jig 230, and the operation repeats in this way. In this way, by using two relatively arranged grabbing members 630 to work simultaneously, the loading efficiency of electronic components can be improved, thereby improving the production efficiency of the product. However, the present design is not limited to this. In other embodiments, the feeding mechanism can also include an electric ball screw provided on the frame, the electric ball screw is used to drive the flyer to rise and fall relative to the frame, the feeding assembly includes a drive motor located above the flyer, and a grabbing member connected to the drive motor, the grabbing member can rotate relative to the drive motor and has a first position and a second position. In the first position, the flyer moves toward the grabbing member under the drive of the electric ball screw, and the grabbing member moves toward the flyer and grabs the electronic components on the flyer; then the flyer moves away from the grabbing member under the drive of the electric ball screw, and the grabbing member rotates to the second position under the drive of the drive motor and is set toward the fixture.

[0053] Reference Figures 6 to 8In this embodiment, further, the rotating member 620 includes a driving motor 621, a reducer 622 drivingly connected to the driving motor 621, and a mounting base 623 drivingly connected to the reducer 622. The two grasping members 630 are respectively arranged at opposite ends of the mounting base 623. The grasping member 630 includes a second driving member 631 mounted on the mounting base 623, a third driving member 632 arranged on the second driving member 631, a pneumatic finger 633 arranged on the third driving member 632, and a clamping claw 634 drivingly connected to the pneumatic finger 633. The pneumatic finger 633 is located above the flyer 61 and is used to control the clamping claw 634 to clamp or release the electronic component. The second driving member 631 is used to drive the third driving member 632 to approach or move away from the flyer 61 in the up and down directions. The third driving member 632 is used to drive the pneumatic finger 633 to rotate. The rotation axis of the pneumatic finger 633 is arranged parallel to the tangent of the turntable 22 on the second workstation 13. It should be noted that parallel means parallel and nearly parallel. In this way, the second drive member 631 and the third drive member 632 provide the pneumatic finger 633 with more degrees of freedom of displacement, so that the pneumatic finger 633 and the clamping claw 634 thereon can be more freely displaced on the frame 10 and reduce the risk of interference and collision with other parts or materials. It can be understood that since the pneumatic finger 633 has a high degree of freedom of displacement, the possibility of its displacement route planning is increased, so correspondingly, the parts located around the pneumatic finger 633 can be arranged more compactly, which is conducive to the miniaturization design of the welding robot. However, the present design is not limited to this. In other embodiments, the rotating part can also be configured as a pneumatic motor and a mounting base plate, and the gripping part can be configured as an intelligent bionic manipulator.

[0054] In this embodiment, the second driving member 631 can be configured as one of a cylinder, a hydraulic cylinder or a linear motor; the third driving member 632 can be configured as one of a servo motor, a stepper motor, a hydraulic motor or a pneumatic motor.

[0055] Reference Figure 6In this embodiment, the mounting base 623 further includes two opposing slide rails 624 spaced apart along the width of the mounting base 623. The gripping member 630 further includes a mounting bracket 635 slidably connected to the two slide rails 624. The second driving member 631 is disposed on the mounting bracket 635. The rotating member 620 further includes two telescopic cylinders 625 corresponding to the two slide rails 624. The telescopic cylinders 625 extend in parallel with the extension direction of the slide rails 624. One end of the telescopic cylinder 625 is connected to the mounting bracket 635 of one gripping member 630, and the other end is connected to the mounting bracket 635 of the other gripping member 630. It should be noted that the two gripping members 630 are disposed at opposite ends of the mounting base 623 along its length. As can be understood, due to the numerous components mounted on mounting bracket 635, including second drive member 631, third drive member 632, and pneumatic finger 633, gripper 630 is relatively heavy overall, with its center of gravity being relatively high and located at the end of mounting base plate 623. Consequently, the gripper 630 experiences a particularly large moment of inertia when drive motor 621 initiates or stops rotating mounting base plate 623. In particular, when mounting base plate 623 stops rotating, gripper 630's large moment of inertia exerts a significant impact on the connection between mounting bracket 635 and mounting base plate 623, causing the gripper 630 to wobble. In this embodiment, the mounting bracket 635 is arranged across the two slide rails 624 and can slide along the slide rails 624. Then, the two mounting brackets 635 are pulled at the same time by two telescopic cylinders 625. This can significantly offset the impact force on the mounting substrate 623 caused by the rotational inertia of the grabbing member 630, and reduce the tendency of the grabbing member 630 to shake, thereby increasing the service life of the welding robot.

[0056] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A multi-station plug-in welding robot for welding electronic components to products, characterized in that: The multi-station plug-in welding robot includes: The rack is equipped with multiple workstations at intervals; a rotating mechanism disposed in the middle of the frame, the rotating mechanism comprising a first driving member, a turntable drivingly connected to the first driving member, and a fixture disposed on the turntable, the plurality of workstations being spaced apart along the circumference of the turntable, the rotating mechanism being used to transfer the fixture between the plurality of workstations, the plurality of workstations comprising a loading station, a first station, and a second station; and A welding mechanism comprising two welding assemblies, the two welding assemblies being respectively arranged at the first station and the second station and being used to successively weld different electronic components to the product, the welding assemblies comprising two welders, the two welders being used to respectively weld two opposite pins of the same electronic component to the product; The plurality of workstations further include a third workstation and a fourth workstation, the welding mechanism further includes two welding assemblies respectively arranged at the third workstation and the fourth workstation, the jig is provided with a first positioning groove and a second positioning groove spaced apart along the circumference of the turntable, the first positioning groove and the second positioning groove are used to respectively position and install one of the products, the welding assemblies on the first workstation and the second workstation are used to perform welding operations on one of the products in the first positioning groove, and the welding assemblies on the third workstation and the fourth workstation are used to perform welding operations on another product in the second positioning groove; The plurality of workstations further include a blanking workstation located between the fourth workstation and the loading workstation, and the multi-workstation plug-in welding robot further includes a blanking mechanism located at the blanking workstation, the blanking mechanism including a manipulator and a conveyor, the manipulator being used to grip the product on the jig and transfer it to the conveyor; The loading station, the first station, the second station, the third station, the fourth station and the unloading station are sequentially arranged along the circumference of the turntable; The fixture is provided with a positioning groove for positioning and installing the product, and the rotating mechanism further includes a clamping assembly movably connected to the turntable, and the clamping assembly is used to press the product into the positioning groove; The clamping assembly includes a guide base provided on the edge of the turntable, a guide rod slidably connected to the guide base, an elastic member connecting the guide base and the guide rod, and a pressure block installed on the guide rod, the pressure block is located above the positioning groove, the pressure block is used to press the product or the electronic component located in the positioning groove, the guide rod slides in the up and down direction and drives the pressure block to move away from or close to the positioning groove, and the elastic member is used to make the pressure block have a tendency to move close to the positioning groove; The multi-station plug-in welding robot further includes a lifting cylinder provided at the loading station, wherein the lifting cylinder is located below the guide rod and is used to drive the guide rod to slide upward; The lifting cylinder includes a piston member, a slot is provided at the outer end of the piston member, a pin hole is provided on the bottom wall of the slot, the guide rod includes a rod body, and a limiting portion provided on one end of the rod body close to the piston member, the limiting portion includes a pin portion for engaging with the pin hole, and a supporting portion connecting the pin portion and the rod body, the supporting portion having two opposite abutting surfaces, the abutting surfaces being used to slide and abut against the side walls of the slot; the slot extends along the circumference of the turntable and passes through the opposite side surfaces of the piston member, and the notch of the slot is gradually expanded toward the direction close to the guide rod.

2. The multi-station plug-in welding robot according to claim 1, characterized in that: The multi-station plug-in welding robot also includes a feeding mechanism arranged at the second station, and the feeding mechanism includes a feeder and a feeding assembly, and the feeding assembly is used to transfer the electronic components on the feeder to the product located on the fixture.

3. The multi-station plug-in welding robot according to claim 2, characterized in that: The feeding assembly includes a rotating member and two grabbing members connected to opposite sides of the rotating member, the grabbing members are used to grab or place the electronic components, the feeding assembly is located between the feeder and the jig located at the second workstation, and the rotating member is used to drive the grabbing members to rotate and switch positions between the jig and the feeder.

4. The multi-station plug-in welding robot according to claim 3, characterized in that: The rotating member includes a driving motor, a reducer connected to the driving motor, and a mounting base connected to the reducer. The two grasping members are arranged at opposite ends of the mounting base. The grasping member includes a second driving member installed on the mounting base, a third driving member arranged on the second driving member, a pneumatic finger arranged on the third driving member, and a clamp connected to the pneumatic finger. The pneumatic finger is located above the feeder and is used to control the clamp to clamp or release the electronic component. The second driving member is used to drive the third driving member to approach or move away from the feeder in the up and down directions. The third driving member is used to drive the pneumatic finger to rotate. The rotation axis of the pneumatic finger is arranged in parallel with the tangent of the turntable on the second workstation.

5. The multi-station plug-in welding robot according to claim 4, characterized in that: The mounting base is provided with two opposing slide rails, and the two slide rails are spaced apart along the width direction of the mounting base. The grabbing member also includes a mounting bracket slidably connected to the two slide rails, and the second driving member is provided on the mounting bracket. The rotating member also includes two telescopic cylinders arranged corresponding to the two slide rails, and the telescopic direction of the telescopic cylinder is arranged in parallel with the extension direction of the slide rail. One end of the telescopic cylinder is connected to the mounting bracket of one of the grabbing members, and the other end is connected to the mounting bracket of the other grabbing member.

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