Single-station annular welding equipment

Abstract

The utility model relates to single-station annular welding equipment which comprises a machine frame, a conveying line used for conveying workpieces, a tray used for bearing the workpieces, a rotary mechanical arm used for feeding and discharging, first annular welding equipment, a transition workpiece placing table and a control system, the tray is located on the conveying line, and the conveying line drives the tray to conduct conveying along the conveying line; the first annular welding equipment is arranged on the rack; the turntable device comprises two workpiece placing seats used for placing workpieces, a first clamp used for clamping and positioning the workpieces, a second clamp used for clamping and positioning the workpieces, a turntable and a first motor, and the first clamp and the second clamp are the same in structure; through cooperative work of the conveying line, the rotary manipulator and the first annular welding equipment, the automatic conveying, clamping, rotating and welding processes of workpieces are achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to single-station annular welding equipment. Background Art

[0002] In the existing technical means, the stator, rotor and other related parts are assembled into the inner cavity of the compressor shell, and then the cover and the shell are connected by welding to form a complete sealed shell. The main technical means currently used is manual welding, in which the welding operation requires circular welding of the connection between the shell and the cover, which leads to high labor costs.

[0003] Although there are some semi-automatic devices that allow operators to place the workpiece (shell and cover assembled) in the semi-automatic welding machine. However, the operator still needs to manually start the welding machine and guide it to rotate to achieve the circular welding of the connection between the shell and the cover. Although this semi-automatic equipment improves efficiency compared to full manual operation, it still has the problems of high labor costs and low work efficiency.

[0004] In this context, seeking more efficient and automated welding methods to reduce labor costs, improve work efficiency, and ensure the stability of compressor sealing effects has become a current technical problem that needs to be solved. Utility Model Content

[0005] The first purpose of the utility model is to provide a single-station annular welding device with automatic annular welding and high working efficiency.

[0006] The first purpose of the utility model is achieved in this way:

[0007] A single-station annular welding device comprises a frame, a conveyor line for transporting workpieces, a pallet for carrying workpieces, a rotary manipulator for loading and unloading, a first annular welding device, a transition workpiece placement table and a control system, wherein the pallet is placed on the conveyor line, and the conveyor line drives the pallet to be transported along the conveyor line;

[0008] The first annular welding device is arranged on a frame;

[0009] The first annular welding device includes a frame, a turntable device, a welding machine device for performing annular welding on the workpiece, and a conductive lifting and rotating device for connecting the workpiece to a conductive carbon brush, lifting the workpiece and driving the workpiece to rotate;

[0010] The turntable device includes two workpiece placement seats for placing workpieces, a first fixture for clamping and positioning the workpiece, a second fixture for clamping and positioning the workpiece, a turntable and a first motor, wherein the first fixture and the second fixture have the same structure;

[0011] The first fixture is arranged on the turntable and is located next to the corresponding workpiece placement seat, the second fixture is arranged on the turntable and is located next to the corresponding workpiece placement seat, the first motor is connected to the turntable, the first motor drives the turntable to rotate, and adjusts the positions of the two workpiece placement seats;

[0012] The conductive lifting and rotating device is arranged under the turntables corresponding to the two workpiece placing seats;

[0013] The rotary manipulator is arranged on the frame and is located beside the first annular welding device. The rotary manipulator comprises a first clamping device for clamping and releasing the workpiece and a rotary base. The first clamping device is fixed at the front end of the rotary base.

[0014] The rotating base drives the first clamping device to rotate, and switches the position of the first clamping device;

[0015] The transition workpiece placement table is arranged on the frame and is located beside the rotating manipulator;

[0016] The conveyor line, the rotary manipulator and the first annular welding device are electrically connected to the control system respectively.

[0017] Automated production: Through the coordinated work of the conveyor line, rotating manipulator and the first circular welding equipment, the automatic conveying, clamping, rotation and welding process of the workpiece is realized, which improves the production efficiency.

[0018] High-precision welding: The design of the fixture in the turntable device and the conductive lifting and rotating device can accurately clamp and position the workpiece, ensuring high precision and stability during the welding process.

[0019] Multi-workpiece processing: Two workpiece placement seats are set on the turntable, and their positions are adjusted by the first motor, so that the equipment can process two workpieces at the same time, improving production efficiency.

[0020] Flexible process adjustment: The design of the rotary manipulator allows the position of the first gripper device to be switched, which enables the equipment to adapt to workpieces of different sizes or shapes, providing a certain degree of process adjustment flexibility.

[0021] Lifting and rotating device: Through the conductive lifting and rotating device, the equipment can lift and rotate the workpiece at the same time during welding, which helps to achieve all-round uniform treatment during welding and improves the welding quality.

[0022] Comprehensive control system: The conveyor line, rotary manipulator and first ring welding equipment are electrically connected to the control system, which enables automatic monitoring and regulation of the entire production process, thus improving the intelligence of the production line.

[0023] Improved production continuity and efficiency: The transition workpiece placement table provides a temporary storage area so that the finished workpiece can be placed while waiting to be clamped and transported, while the welding equipment can continue to carry out new welding tasks. This helps to improve the continuity and efficiency of the overall production line.

[0024] Automated collaborative operation: The transition workpiece placement table works in conjunction with the rotary manipulator, conveyor line and first ring welding equipment, and an automated workflow is achieved through electrical connection of the control system. This helps reduce manual intervention and improves the level of automation.

[0025] Enhanced flexibility and adaptability: The transition workpiece placement table allows the temporary storage of completed workpieces, making the welding equipment more flexible to handle workpieces of different sizes, shapes or types, and improving the adaptability of the production line.

[0026] Optimized space utilization: The addition of the transition workpiece placement table optimizes space utilization, ensuring that the space around the welding station is used more effectively, making the entire production area more tidy and orderly.

[0027] Reduce waiting time: Due to the existence of the transition workpiece placement table, there is no need to wait for all workpieces to be welded, which can reduce waiting time to a certain extent and improve work efficiency.

[0028] Smooth process flow: The clamping and transportation design of the transition workpiece placement table makes the process flow smoother, ensuring that the welded workpieces can be clamped onto the pallet and transported out in a timely manner, making the entire production process seamlessly connected.

[0029] In general, the introduction of the transition workpiece placement table enhances the production efficiency, flexibility and automation of the entire welding equipment, providing a smoother and more efficient working environment for welding production.

[0030] The first purpose of the utility model can also be solved by the following technical measures:

[0031] Furthermore, the rotating machine base includes a second motor, a crossbeam, a support frame and a first cylinder, the support frame is connected to the rotating shaft of the second motor, and the second motor drives the support frame to rotate when it works;

[0032] The crossbeam is connected to the support frame in a vertical sliding manner, the first cylinder is arranged on the support frame, the push rod of the first cylinder is connected to the crossbeam, and the first cylinder drives the crossbeam to rise and fall when it works;

[0033] The first clamping jaw device is arranged at the front end of the crossbeam.

[0034] Precise Positioning and Rotation Control: The design of the second motor and support frame enables the rotary base to perform precise rotational motion. This helps ensure that the first gripper unit accurately grips and releases the workpiece, improving the accuracy of positioning and rotation control.

[0035] Lifting adjustment: The vertical sliding connection of the beam and the design of the first cylinder allow the rotating machine base to be lifted and lowered. This design helps to adapt to workpieces of different heights, making the welding equipment more versatile.

[0036] Flexible adaptation to different workpieces: By lifting the crossbeam and rotating the support frame, the rotating machine base can adapt to workpieces of different sizes and shapes. This increases the flexibility of the equipment and enables it to adapt to diverse welding needs.

[0037] Fast switching and adjustment: The fast rotation of the second motor and the lifting function of the first cylinder enable the rotary base to quickly switch and adjust between different process requirements. This is very beneficial for processing multiple batches and different types of workpieces.

[0038] Efficient clamping: The first clamping jaw device is set at the front end of the beam. Through the control of the rotating machine base, efficient operation of clamping and releasing the workpiece is achieved, ensuring the efficient operation of the production line.

[0039] Reduce manual intervention: Through the automated collaborative work of the second motor, beam and first cylinder, the reliance on manual operation is reduced and the automation level of the production line is improved.

[0040] In general, the design of this rotating machine base enhances the positioning, rotation and clamping capabilities of the welding equipment through the synergy of multiple mechanical components, and improves the adaptability and production efficiency of the equipment.

[0041] Furthermore, the welding machine device includes a welding machine and a first servo motor. The welding machine is movably arranged on a frame and located above a turntable. The first servo motor is arranged on the frame and connected to the welding machine. The first servo motor drives the welding machine to rise and fall. The welding machine includes a first welding gun and a second welding gun. A welding area is formed between the first welding gun and the second welding gun.

[0042] Adjustable welding height: The setting of the first servo motor enables the welder to be raised and lowered in the vertical direction. This helps to adapt to workpieces of different heights and improves the flexibility and adaptability of the welding equipment.

[0043] Double welding gun design: The welding machine includes a first welding gun and a second welding gun, and a welding area is formed between the two. This design allows the equipment to weld multiple welding points at the same time, improving welding efficiency.

[0044] Clearly defined welding area: The welding area formed between the first welding gun and the second welding gun helps to ensure a clear definition of the welding point, improving the accuracy and quality of the welding.

[0045] Servo motor control: The use of the first servo motor allows the lifting process of the welding machine to be realized through precise electronic control. This improves the automation level of the welding equipment and makes the welding process more controllable.

[0046] Flexible adaptation to different welding requirements: The adjustable welding height and dual welding gun design enable the welder to adapt to workpieces of different shapes, sizes and types, improving the flexibility of the equipment.

[0047] Efficient production: Using the first welding gun and the second welding gun at the same time, combined with the control of the servo motor, enables the welding equipment to perform multi-spot welding efficiently and shorten the production cycle.

[0048] Reduce the switching time between production stages: The multi-welding point design of the equipment helps to reduce the switching time between different production stages and improve the operating efficiency of the production line.

[0049] In summary, the design of the welding machine device further improves the adaptability, accuracy and efficiency of the welding equipment by introducing features such as adjustable welding height, dual welding guns and servo motor control, making it more in line with the requirements of complex welding tasks.

[0050] Furthermore, the conductive lifting and rotating device includes a socket for connecting a workpiece, a conductive carbon brush, a third motor and a third cylinder, the conductive carbon brush is arranged on the socket, the third motor is connected to the socket, the third motor drives the socket to rotate, the third cylinder is connected to the socket, and the third cylinder drives the socket to rise and fall.

[0051] Improved conductivity: The conductive carbon brush is set on the socket, and the socket can rotate and rise and fall to make the conductive carbon brush contact the workpiece in all directions. This helps to improve the conductivity and ensure good current conduction during welding.

[0052] Full contact with the workpiece: Through the rotation of the third motor and the lifting of the third cylinder, the socket can achieve full rotation and lifting movement in space. This ensures that the conductive carbon brush can contact the workpiece at all angles and heights, providing more comprehensive coverage for welding.

[0053] Multi-dimensional adjustment: The combination of the third motor and the third cylinder enables the conductive lifting and rotating device to have multi-dimensional adjustment capabilities. This helps to adapt to workpieces of different shapes, sizes and heights, and improves the adaptability of the welding equipment.

[0054] Automatic control and adjustment: The automatic control of the third motor and the third cylinder enables the conductive lifting and rotating device to achieve automatic rotation and lifting adjustment during the welding process. This reduces manual intervention and improves the intelligence level of the welding equipment.

[0055] Efficient welding: All-round contact and multi-dimensional adjustment enable the conductive lifting and rotating device to achieve a more efficient welding process, ensuring comprehensiveness and consistency of welding.

[0056] Adaptable to different process requirements: The design of the conductive lifting and rotating device makes it suitable for various welding process requirements, including rotation of the workpiece and vertical lifting, providing solutions for diverse production tasks.

[0057] In general, the design of the conductive lifting and rotating device enhances the electrical connection between the welding equipment and the workpiece, and improves the efficiency, accuracy and adaptability of welding through multi-dimensional automatic adjustment.

[0058] Furthermore, the first annular welding device further comprises a self-locking module, the self-locking module comprises a rod body, a spring and a plate body, the socket is provided with a notch, and the plate body is provided with a protrusion at a position corresponding to the notch;

[0059] The turntable has a connection port, the plate has a plug hole, the lower end of the rod is provided with a blocking portion, the rod passes through the plug hole, the upper end of the rod locks the connection port, the plate abuts against the blocking portion, and the plate can slide along the length direction of the rod;

[0060] The spring is sleeved on the rod body, the upper end of the spring abuts against the rotating disk, and the lower end of the spring abuts against the plate body. The spring constitutes a reset mechanism of the plate body, and the elastic force of the spring pushes the plate body downward until the protrusion is inserted into the notch to achieve locking.

[0061] Automatic locking mechanism: The self-locking module forms an automatic locking mechanism through the design of the spring. The elastic force of the spring pushes the plate down until the protrusion is inserted into the notch, achieving automatic locking. This helps to ensure that the device is safely locked when needed.

[0062] Improved reliability and stability: The protrusion and notch design in the self-locking module ensures the reliability and stability of the lock. Once locked, the device is not prone to accidental loosening during operation, which improves the reliability of the device.

[0063] Simple and effective design: The self-locking module consisting of the rod body, spring and plate body has a simple and effective structure. This makes the self-locking module relatively easy to manufacture and maintain, which helps to improve the maintainability of the overall equipment.

[0064] Flexible adaptation to different working conditions: The design of the self-locking module can flexibly adapt to different working conditions. By adjusting the elastic force of the spring or the shape and number of the protrusions, different locking strengths and safety can be achieved.

[0065] Quick and safe locking of equipment: The design of the self-locking module allows the equipment to be quickly and safely locked when needed, improving the operating efficiency and work safety of the equipment.

[0066] Suitable for high vibration environment: The structure of the self-locking module makes it tolerant to vibration and shock, and is suitable for working environments where mechanical vibration may exist.

[0067] On the whole, the introduction of the self-locking module not only improves the safety and stability of the equipment, but also provides a beneficial impact on the maintainability and operating efficiency of the equipment through a simple and reliable design.

[0068] Furthermore, the first annular welding equipment also includes an unlocking module, which includes a fourth cylinder, a pushing rod of the fourth cylinder rests on the plate body, the fourth cylinder drives the pushing rod to rise, and the pushing rod drives the plate body to move upward to overcome the elastic force of the spring until the protrusion leaves the notch, thereby achieving unlocking.

[0069] Automatic unlocking mechanism: The unlocking module is pushed by the fourth cylinder, causing the push rod to rise, thereby driving the plate to move upward against the elastic force of the spring until the protrusion leaves the notch, achieving automatic unlocking. This helps to unlock the device quickly and reliably when needed.

[0070] Safe and controllable unlocking operation: The design of the fourth cylinder can achieve precise control of the unlocking process by controlling the pushing force and speed of the cylinder. This helps to ensure that the unlocking operation is safe and controllable.

[0071] Quick response: The design of the unlocking module can complete the unlocking process in a relatively short time. This is very beneficial for working environments that require rapid adjustment of equipment status, and improves operational flexibility.

[0072] Adapt to different working conditions: The design of the unlocking module can adapt to the unlocking requirements under different working conditions by adjusting the parameters of the cylinder. This helps to improve the adaptability of the equipment.

[0073] Human-computer interaction: The automated design of the unlocking module helps reduce manual operations and improves human-computer interaction. This makes the use of the device more convenient and safer.

[0074] Working in coordination with the self-locking module: The collaborative work of the unlocking module and the self-locking module ensures that the device can be quickly switched from the locked state to the unlocked state when needed, thus enhancing the intelligence of the device.

[0075] Overall, the design of the unlocking module improves the operational flexibility, safety and controllability of the equipment, making the equipment more intelligent and convenient during operation.

[0076] Further, the first clamp comprises a synchronous gear, a first clamp arm, a first slide rail, a first slider, a fifth cylinder, a second clamp arm, a second slide rail, a second slider, a sixth cylinder and a dustproof housing, the first slide rail and the second slide rail are arranged in an inner cavity of the dustproof housing, the first slide rail and the second slide rail stand opposite to each other, the first slider is arranged on the first slide rail in a sliding manner, the second slider is arranged on the second slide rail in a sliding manner, and the synchronous gear is arranged in a rotatable manner in the inner cavity of the dustproof housing and is located between the first slide rail and the second slide rail;

[0077] The upper portion of the first clamp arm extends into the inner cavity of the dustproof housing to connect the first slider and the second slider, and the upper portion of the first clamp arm is provided with a first rack, which is meshed with a synchronous gear;

[0078] The upper part of the second clamp arm extends into the inner cavity of the dustproof housing to connect the first slider and the second slider, and the upper part of the second clamp arm is provided with a second rack, and the second rack is meshed with the synchronous gear;

[0079] The push rod of the fifth cylinder extends into the dustproof housing and connects to the upper part of the first clamp arm, and the action of the fifth cylinder drives the first clamp arm to move, and the push rod of the sixth cylinder extends into the dustproof housing and connects to the upper part of the second clamp arm, and the action of the sixth cylinder drives the second clamp arm to move, thereby realizing that the first clamp arm and the second clamp arm are brought closer to or separated from each other;

[0080] It also includes a first positioning guide bar and a second positioning guide bar, wherein the first positioning guide bar is arranged in the dustproof housing, the first sliding block is closely attached to the first positioning guide bar, and the second sliding block is closely attached to the second positioning guide bar.

[0081] Synchronous movement and positioning accuracy: The first clamp adopts synchronous gears, first slide rails, second slide rails and other components to ensure the synchronous movement of the first clamp arm and the second clamp arm. At the same time, the use of the first positioning guide bar and the second positioning guide bar improves the positioning accuracy and ensures the accurate positioning of the clamp during work.

[0082] Clamping stability: The first clamp can stably clamp the workpiece by moving the first clamp arm and the second clamp arm closer or farther away from each other. This is very important to ensure the stability and consistency of the workpiece during welding.

[0083] Modular design: The design of the first fixture includes multiple components, such as synchronous gears, first slide rails, second slide rails, etc., which makes the fixture modular, facilitates maintenance and replacement of damaged parts, and improves the maintainability of the equipment.

[0084] Cylinder drive: The use of the fifth and sixth cylinders realizes the dynamic control of the first clamping arm and the second clamping arm. Through the push of the cylinder, the clamp can flexibly adjust the clamping state to adapt to workpieces of different shapes and sizes.

[0085] Dust-proof housing design: The use of dust-proof housing protects the internal mechanical structure of the fixture from dust and impurities, which helps to improve the stability and life of the equipment.

[0086] Application of positioning guide strips: The use of the first positioning guide strip and the second positioning guide strip helps to ensure that the fixture maintains a stable positioning during operation, avoids unnecessary deviation, and improves the accuracy of welding.

[0087] Clean working environment: The design of the dust-proof housing not only protects the internal mechanical structure, but also helps to keep the working environment clean and reduce the interference of impurities on the normal operation of the equipment.

[0088] In summary, the design of the first fixture takes into account multiple aspects such as synchronous movement, clamping stability, and modular maintenance, which improves the working efficiency and reliability of welding equipment.

[0089] Further, the first annular welding equipment also includes a height measuring device, which includes a vertical rod, a mounting plate, a second servo motor, a height measuring rod and a seventh cylinder. The mounting plate is slidably arranged on the vertical rod, the second servo motor is arranged on the vertical rod and connected to the mounting plate, the second servo motor drives the mounting plate to rise and fall along the vertical rod, the height measuring rod is laterally arranged on the mounting plate in a slidable manner, the seventh cylinder is arranged on the mounting plate and connected to one end of the height measuring rod, the other end of the height measuring rod is provided with a high measuring head, and the seventh cylinder drives the height measuring rod to extend and retract;

[0090] When the high-end measuring head contacts the workpiece, the torque of the second servo motor increases. At this time, the second servo motor compares the stroke with the initial preset value to form height difference data. The second servo motor feeds back the height difference data to the control system, and the control system sends the height difference data to the first servo motor. The first servo motor drives the welding machine to move to the specified height.

[0091] Real-time height measurement feedback: The height measurement device can sense the height difference of the workpiece in real time. Through the torque change of the second servo motor, the height difference data is accurately fed back to the control system. This helps to achieve precise control of the workpiece height during welding.

[0092] Intelligent height adjustment: After receiving the height difference data, the control system adjusts the first servo motor through the feedback signal, so that the welder can quickly move to the specified height. This improves the intelligence and automation level of the equipment.

[0093] Multi-motor collaborative work: The collaborative work of the first servo motor and the second servo motor makes the welding equipment more flexible in height adjustment, can adapt to workpieces of different heights, and improves the adaptability of the equipment.

[0094] Precision welding: Through the height feedback of the height measuring device, the welder can accurately adjust the welding position to ensure that the welding point is at the specified height, thus improving the accuracy and quality of welding.

[0095] Integrated design: The integrated design of the height measuring device, including the vertical rod, the mounting plate, the second servo motor, the height measuring rod and the seventh cylinder, makes the entire height measuring system highly integrated and easy to install and maintain.

[0096] Quick response: The height measuring device can quickly adjust the welding machine position when height changes are detected in real time, ensuring that the equipment responds quickly to changes in workpiece height and improving production efficiency.

[0097] In general, the design of the height measuring device not only improves the equipment's ability to perceive the height of the workpiece, but also achieves precise control of the welding height through feedback and adjustment, providing support for the intelligence and efficiency of the welding process.

[0098] The beneficial effects of the utility model are as follows:

[0099] The utility model, the single-station annular welding equipment is characterized by its highly automated production process, and realizes automatic conveying, clamping, rotation and welding of workpieces through the coordinated operation of the conveyor line, the rotating manipulator and the first annular welding equipment, which significantly improves the production efficiency. At the same time, its design focuses on high-precision welding, and the stability and high precision of the welding process are ensured through the clamps on the turntable and the conductive lifting and rotating device.

[0100] The utility model realizes the simultaneous processing of two workpieces by means of two workpiece placing seats arranged in the equipment and the adjustment of their positions by the first motor, thereby further improving the production efficiency.

[0101] The utility model, through the ingenious design of the lifting and rotating device, can lift and rotate the workpiece at the same time during welding, which helps to achieve all-round uniform processing and improve the welding quality. The electrical connection of the overall control system enables the conveyor line, the rotating manipulator and the first ring welding equipment to achieve highly automated collaborative operation, thereby improving the intelligence level of the production line.

[0102] The utility model, by introducing a transition workpiece placement table, improves the production efficiency while also enhancing the flexibility and adaptability of the equipment. The existence of the transition workpiece placement table allows the welding equipment to continue with new welding tasks while the completed workpieces are waiting to be clamped and transported, thus reducing waiting time and improving work efficiency. The design also optimizes space utilization, ensuring that the space around the welding site is more effectively utilized, making the entire production area more tidy and orderly. The introduction of the transition workpiece placement table brings all-round advantages to the annular welding equipment, optimizes the production process, improves production efficiency and flexibility, and enables the welding equipment to perform well in responding to diversified and efficient production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Figure 1 It is a schematic diagram of a single-station circular welding equipment.

[0104] Figure 2 This is a schematic diagram of a single-station circular welding device from another angle.

[0105] Figure 3 It is a top view of a single-station circular welding device.

[0106] Figure 4 A schematic diagram of a first annular welding device which is a single-station annular welding device.

[0107] Figure 5 Another angle schematic diagram of the first annular welding device of the single-station annular welding device.

[0108] Figure 6 It is a schematic diagram of the first annular welding device of a single-station annular welding device (welding state).

[0109] Figure 7 This is a schematic diagram from another angle of the first annular welding device of the single-station annular welding device (welding state).

[0110] Figure 8 This is a schematic diagram of the first clamp of the single-station annular welding equipment (unclamped state).

[0111] Fig. 9 This is a schematic diagram of the first clamp of the single-station annular welding equipment (unclamped state).

[0112] Fig.10 This is a schematic diagram of the first fixture of the single-station annular welding equipment (unclamped state, except for part of the shell).

[0113] Fig.11 This is a schematic diagram of the first clamp of the single-station annular welding equipment (clamping state).

[0114] Fig.12This is a schematic diagram of the first clamp of the single-station annular welding equipment (clamping state).

[0115] Fig.13 Schematic diagram of the workpiece (shell and cover assembly). DETAILED DESCRIPTION

[0116] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0117] Example, combined with Figures 1 to 13 As shown, a single-station annular welding device includes a frame 9, a conveyor line 91 for transporting workpieces, a pallet 92 for carrying workpieces, a rotating manipulator 1 for loading and unloading, a first annular welding device 2, a transition workpiece placement table 3 and a control system, wherein the pallet 92 sits on the conveyor line 91, and the conveyor line 91 drives the pallet 92 to be transported along the conveyor line 91;

[0118] The workpiece 93 includes a shell 931 and a cover 932 , and the shell 931 and the cover 932 are assembled into the workpiece 93 .

[0119] The first annular welding device 2 is arranged on a frame 9;

[0120] The first annular welding device 2 includes a frame 21, a turntable device 22, a welding machine device 23 for performing annular welding on the workpiece, and a conductive lifting and rotating device 24 for connecting the workpiece to a conductive carbon brush, lifting the workpiece and driving the workpiece to rotate;

[0121] The turntable device 22 includes two workpiece placement seats 221 for placing workpieces, a first fixture 222 for clamping and positioning the workpiece, a second fixture 223 for clamping and positioning the workpiece, a turntable 224 and a first motor 225. The first fixture 222 and the second fixture 223 have the same structure.

[0122] The first fixture 222 is disposed on the turntable 224 and is located next to the corresponding workpiece placement seat 221, the second fixture 223 is disposed on the turntable 224 and is located next to the corresponding workpiece placement seat 221, the first motor 225 is connected to the turntable 224, and the first motor 225 drives the turntable 224 to rotate to adjust the positions of the two workpiece placement seats 221;

[0123] The conductive lifting and rotating device 24 is disposed below the turntable 224 corresponding to the two workpiece placing seats 221;

[0124] The rotary manipulator 1 is arranged on the frame 9 and is located beside the first annular welding device 2. The rotary manipulator 1 comprises a first clamping device 11 and a rotary base 13 for clamping and releasing a workpiece. The first clamping device 11 is fixed at the front end of the rotary base 13.

[0125] The rotating base 13 drives the first clamping device 11 to rotate, and switches the position of the first clamping device 11;

[0126] The transition workpiece placement table 3 is arranged on the frame 9 and is located beside the rotating manipulator 1;

[0127] The conveyor line 91, the rotary robot 1 and the first annular welding device 2 are electrically connected to a control system respectively.

[0128] Furthermore, the rotating base 13 includes a second motor 131, a crossbeam 132, a support frame 133 and a first cylinder 134. The support frame 133 is connected to the rotating shaft of the second motor 131, and the second motor 131 drives the support frame 133 to rotate when it works;

[0129] The cross beam 132 is connected to the support frame 133 in a vertical sliding manner, the first cylinder 134 is arranged on the support frame 133, the push rod of the first cylinder 134 is connected to the cross beam 132, and the first cylinder 134 drives the cross beam 132 to rise and fall when it works;

[0130] The first clamping jaw device 11 is disposed at the front end of the crossbeam 132 .

[0131] Furthermore, the welding machine device 23 includes a welding machine 231 and a first servo motor 232. The welding machine 231 is movably arranged on the frame 21 and is located above the turntable 224. The first servo motor 232 is arranged on the frame 21 and connected to the welding machine 231. The first servo motor 232 drives the welding machine 231 to rise and fall. The welding machine 231 includes a first welding gun 2321 and a second welding gun 2322. A welding area 2323 is formed between the first welding gun 2321 and the second welding gun 2322.

[0132] Furthermore, the conductive lifting and rotating device 24 includes a socket 241 for connecting a workpiece, a conductive carbon brush 242, a third motor 243 and a third cylinder 244, the conductive carbon brush 242 is arranged on the socket 241, the third motor 243 is connected to the socket 241, the third motor 243 drives the socket 241 to rotate, the third cylinder 244 is connected to the socket 241, and the third cylinder 244 drives the socket 241 to rise and fall.

[0133] Furthermore, the first annular welding device 2 further includes a self-locking module 4, the self-locking module 4 includes a rod 41, a spring 42 and a plate 43, the socket 241 is provided with a notch 2411, and the plate 43 is provided with a protrusion 431 at a position corresponding to the notch 2411;

[0134] The rotating disk 224 is provided with a connection port 2241, the plate body 43 is provided with an insertion hole, the lower end of the rod body 41 is provided with a blocking portion 411, the rod body 41 passes through the insertion hole, the upper end of the rod body 41 locks the connection port 2241, the plate body 43 abuts against the blocking portion 411, and the plate body 43 can slide along the length direction of the rod body 41;

[0135] The spring 42 is sleeved on the rod body 41, the upper end of the spring 42 abuts against the rotating disk 224, and the lower end of the spring 42 abuts against the plate body 43. The spring 42 constitutes a reset mechanism of the plate body 43. The elastic force of the spring 42 pushes the plate body 43 downward until the protrusion 431 is inserted into the notch 2411 to achieve locking.

[0136] Furthermore, the first annular welding equipment 2 also includes an unlocking module 5, which includes a fourth cylinder 51. The pushing rod 41 of the fourth cylinder 51 is against the plate 43. The fourth cylinder 51 drives the pushing rod 41 to rise, and the pushing rod 41 drives the plate 43 to move upward to overcome the elastic force of the spring 42 until the protrusion 431 leaves the notch 2411, thereby achieving unlocking.

[0137] Further, the first clamp 222 includes a synchronous gear 2221, a first clamp arm 2222, a first slide rail 2223, a first slider 2224, a fifth cylinder 2225, a second clamp arm 2226, a second slide rail 2227, a second slider 2228, a sixth cylinder 2229 and a dustproof housing 2220, the first slide rail 2223 and the second slide rail 2227 are arranged in the inner cavity of the dustproof housing 2220, the first slide rail 2223 and the second slide rail 2227 stand opposite to each other, the first slider 2224 is slidably arranged on the first slide rail 2223, the second slider 2228 is slidably arranged on the second slide rail 2227, and the synchronous gear 2221 is rotatably arranged in the inner cavity of the dustproof housing 2220 and is located between the first slide rail 2223 and the second slide rail 2227;

[0138] The upper portion of the first clamp arm 2222 extends into the inner cavity of the dustproof housing 2220 to connect the first slider 2224 and the second slider 2228. The upper portion of the first clamp arm 2222 is provided with a first rack 200, and the first rack 200 is meshed with the synchronous gear 2221.

[0139] The upper portion of the second clamp arm 2226 extends into the inner cavity of the dustproof housing 2220 to connect the first slider 2224 and the second slider 2228. The upper portion of the second clamp arm 2226 is provided with a second rack, which is meshed with the synchronous gear 2221.

[0140] The push rod of the fifth cylinder 2225 extends into the dustproof housing 2220 to connect to the upper part of the first clamp arm 2222. The action of the fifth cylinder 2225 drives the first clamp arm 2222 to move. The push rod of the sixth cylinder 2229 extends into the dustproof housing 2220 to connect to the upper part of the second clamp arm 2226. The action of the sixth cylinder 2229 drives the second clamp arm 2226 to move, thereby achieving the first clamp arm 2222 and the second clamp arm 2226 to move closer to or separate from each other.

[0141] It also includes a first positioning guide strip 6 and a second positioning guide strip 7 . The first positioning guide strip 6 is disposed in the dustproof housing 2220 . The first sliding block 2224 is in close contact with the first positioning guide strip 6 , and the second sliding block 2228 is in close contact with the second positioning guide strip 7 .

[0142] Further, the first annular welding equipment 2 also includes a height measuring device 8, which includes a vertical rod 81, a mounting plate 82, a second servo motor 83, a height measuring rod 84 and a seventh cylinder 85. The mounting plate 82 is slidably arranged on the vertical rod 81, the second servo motor 83 is arranged on the vertical rod 81 and connected to the mounting plate 82, and the second servo motor 83 drives the mounting plate 82 to rise and fall along the vertical rod 81. The height measuring rod 84 is laterally arranged on the mounting plate 82 in a sliding manner, the seventh cylinder 85 is arranged on the mounting plate 82 and connected to one end of the height measuring rod 84, and the other end of the height measuring rod 84 is provided with a high measuring head 841, and the seventh cylinder 85 drives the height measuring rod 84 to extend and retract;

[0143] When the high-end measuring head 841 contacts the workpiece, the torque of the second servo motor 83 increases. At this time, the second servo motor 83 compares the stroke with the initial preset value to form height difference data. The second servo motor 83 feeds back the height difference data to the control system. The control system sends the height difference data to the first servo motor 232. The first servo motor 232 drives the welding machine 231 to move to the specified height.

[0144] A workpiece annular welding method using a single-station annular welding device comprises the following steps:

[0145] Step 1: Two workpieces to be processed are placed on a tray 92, and a conveyor line 91 drives multiple trays 92 to be transported along the conveyor line 91;

[0146] Step 2: The first clamping device 11 is actuated to clamp the corresponding workpiece to be processed, and then the second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the turntable 224 of the first annular welding device 2, and finally, the first clamping device 11 is actuated to release the corresponding workpiece to the corresponding workpiece placement seat 221 of the first annular welding device 2 for initial positioning;

[0147] Step 4: The fifth cylinder 2225 of the first clamp 222 drives the first clamp arm 2222 to move, and the sixth cylinder 2229 of the first clamp 222 drives the second clamp arm 2226 to move, so that the first clamp arm 2222 and the second clamp arm 2226 move closer to each other to clamp the workpiece to be processed, thereby adjusting the center position of the workpiece to be processed;

[0148] Step 5: The first motor 225 of the first annular welding device 2 drives the turntable 224 to rotate, so that the corresponding workpiece placement seat 221 to be processed enters the welding area 2323 of the welding machine 231 device 23 of the first annular welding device 2;

[0149] Step 6: The seventh cylinder 85 of the first annular welding device 2 drives the height measuring rod 84 to extend toward the workpiece to be processed, and the second servo motor 83 drives the height measuring rod 84 to descend until the high measuring head 841 abuts against the workpiece to be processed, and the torque of the second servo motor 83 increases. At this time, the second servo motor 83 compares the stroke with the initial preset value to form height difference data, and the second servo motor 83 feeds back the height difference data to the control system, and the control system sends the height difference data to the first servo motor 232, and the first servo motor 232 drives the welding machine 231 to move to the specified height;

[0150] Step 7: The fourth cylinder 51 of the first annular welding device 2 drives the push rod 41 to rise, and the push rod 41 overcomes the elastic force of the spring 42 to drive the plate 43 to move upward until the protrusion 431 leaves the notch 2411, and the socket 241 is in a free state;

[0151] Step 8: The third cylinder 244 of the first annular welding device 2 drives the socket 241 to rise through the corresponding workpiece placement seat 221 to lift the workpiece to be processed and connect the workpiece to be processed, while the conductive carbon brush 242 is in close contact with the workpiece to be processed;

[0152] Step nine: the third motor 243 of the first annular welding device 2 drives the socket 241 to rotate, thereby driving the workpiece to be processed to rotate;

[0153] Step ten: the first welding gun 2321 and the second welding gun 2322 of the first annular welding device 2 weld the workpiece, and since the workpiece to be processed rotates, the workpiece to be processed completes 360-degree annular welding;

[0154] Step 11: The fourth cylinder 51 of the first annular welding device 2 drives the push rod 41 to descend, and the push rod 41 overcomes the elastic force of the spring 42 to drive the plate 43 to move downward until the protrusion 431 enters the notch 2411, and the socket 241 is in a locked state;

[0155] Step 12: The first motor 225 of the first annular welding device 2 drives the turntable 224 to rotate, so that the workpiece that has completed 360-degree annular welding leaves the welding area 2323 of the welding machine 231 device 23 of the first annular welding device 2;

[0156] Step 13: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the turntable 224 of the first annular welding device 2, and the first clamping device 11 is actuated to clamp the workpiece corresponding to the 360-degree annular welding;

[0157] Step 14: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the transition workpiece placement table 3, and the first clamping device 11 is actuated to release the workpiece that has completed 360-degree circular welding to the top of the transition workpiece placement table 3;

[0158] Step 15: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the tray 92, and the first clamping device 11 is actuated to clamp another workpiece to be processed;

[0159] Step 16: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the turntable 224 of the first annular welding device 2, and the first clamping device 11 is actuated to release the corresponding workpiece to the corresponding workpiece placement seat 221 of the first annular welding device 2 for initial positioning;

[0160] Step 17: Execute steps 4 to 13;

[0161] Step 18: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the transition workpiece placement table 3, and the first clamping device 11 clamps the transition workpiece placement table 3 to complete the 360-degree circular welding of the workpiece;

[0162] Step 19: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the tray 92, and the first clamping device 11 is actuated to release the workpiece corresponding to the 360-degree circular welding to the top of the tray 92;

[0163] Step 20: The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the workpiece to be processed on the next tray 92, and the first clamping device 11 is actuated to clamp the corresponding workpiece to be processed. The second motor 131 drives the first clamping device 11 to rotate, so that the first clamping device 11 is located above the turntable 224 of the first annular welding equipment 2. Then, the first clamping device 11 is actuated to release the corresponding workpiece to be processed to the corresponding workpiece placement seat 221 of the first annular welding equipment 2 for initial positioning, and steps four to thirteen are executed, and the cycle is repeated.

[0164] Step 21: When two workpieces with 360-degree circular welding are placed on the previous tray 92, the previous tray 92 is transported along the conveyor line 91, and the next tray 92 is transported along the conveyor line 91 to the designated position, and steps 1 to 21 are executed, and the cycle is repeated.

Claims

1. A single-station annular welding device, comprising a frame, a conveyor line for transporting workpieces, a tray for carrying workpieces, a rotary manipulator for loading and unloading, a first annular welding device, a transition workpiece placement table and a control system, characterized in that: The pallet is placed on a conveyor line, and the conveyor line drives the pallet to be transported along the conveyor line; The first annular welding device is arranged on a frame; The first annular welding device includes a frame, a turntable device, a welding machine device for performing annular welding on the workpiece, and a conductive lifting and rotating device for connecting the workpiece to a conductive carbon brush, lifting the workpiece and driving the workpiece to rotate; The turntable device includes two workpiece placement seats for placing workpieces, a first fixture for clamping and positioning the workpiece, a second fixture for clamping and positioning the workpiece, a turntable and a first motor, wherein the first fixture and the second fixture have the same structure; The first fixture is arranged on the turntable and is located next to the corresponding workpiece placement seat, the second fixture is arranged on the turntable and is located next to the corresponding workpiece placement seat, the first motor is connected to the turntable, the first motor drives the turntable to rotate, and adjusts the positions of the two workpiece placement seats; The conductive lifting and rotating device is arranged below the turntables corresponding to the two workpiece placing seats; The rotary manipulator is arranged on the frame and is located beside the first annular welding device. The rotary manipulator comprises a first clamping device for clamping and releasing the workpiece and a rotary base. The first clamping device is fixed at the front end of the rotary base. The rotating base drives the first clamping device to rotate, thereby switching the position of the first clamping device; The transition workpiece placement table is arranged on the frame and is located beside the rotating manipulator; The conveyor line, the rotary manipulator and the first annular welding device are electrically connected to the control system respectively.

2. The single-station annular welding equipment according to claim 1, characterized in that: The rotating machine base comprises a second motor, a crossbeam, a support frame and a first cylinder. The support frame is connected to the rotating shaft of the second motor, and the second motor drives the support frame to rotate when it works. The crossbeam is connected to the support frame in a vertical sliding manner, the first cylinder is arranged on the support frame, the push rod of the first cylinder is connected to the crossbeam, and the first cylinder drives the crossbeam to rise and fall when it works; The first clamping jaw device is arranged at the front end of the crossbeam.

3. The single-station annular welding equipment according to claim 1, characterized in that: The welding machine device includes a welding machine and a first servo motor. The welding machine is movably arranged on a frame and located above a turntable. The first servo motor is arranged on the frame and connected to the welding machine. The first servo motor drives the welding machine to rise and fall. The welding machine includes a first welding gun and a second welding gun. A welding area is formed between the first welding gun and the second welding gun.

4. The single-station annular welding equipment according to claim 1, characterized in that: The conductive lifting and rotating device includes a socket for connecting a workpiece, a conductive carbon brush, a third motor and a third cylinder. The conductive carbon brush is arranged on the socket. The third motor is connected to the socket and drives the socket to rotate. The third cylinder is connected to the socket and drives the socket to rise and fall.

5. The single-station annular welding equipment according to claim 4, characterized in that: The first annular welding device further includes a self-locking module, the self-locking module includes a rod body, a spring and a plate body, the socket is provided with a notch, and the plate body is provided with a protrusion at a position corresponding to the notch; The turntable has a connection port, the plate has a plug hole, the lower end of the rod is provided with a blocking portion, the rod passes through the plug hole, the upper end of the rod locks the connection port, the plate rests against the blocking portion, and the plate can slide along the length direction of the rod; The spring is sleeved on the rod body, the upper end of the spring abuts against the rotating disk, and the lower end of the spring abuts against the plate body. The spring constitutes a reset mechanism of the plate body, and the elastic force of the spring pushes the plate body downward until the protrusion is inserted into the notch to achieve locking.

6. The single-station annular welding equipment according to claim 5, characterized in that: The first annular welding equipment also includes an unlocking module, which includes a fourth cylinder. The pushing rod of the fourth cylinder is against the plate body. The fourth cylinder drives the pushing rod to rise, and the pushing rod drives the plate body to move upward to overcome the elastic force of the spring until the protrusion leaves the notch to achieve unlocking.

7. The single-station annular welding equipment according to claim 1, characterized in that: The first clamp comprises a synchronous gear, a first clamp arm, a first slide rail, a first slider, a fifth cylinder, a second clamp arm, a second slide rail, a second slider, a sixth cylinder and a dustproof housing, wherein the first slide rail and the second slide rail are arranged in an inner cavity of the dustproof housing, the first slide rail and the second slide rail stand opposite to each other, the first slider is arranged on the first slide rail in a sliding manner, the second slider is arranged on the second slide rail in a sliding manner, and the synchronous gear is arranged in a rotatable manner in the inner cavity of the dustproof housing and is located between the first slide rail and the second slide rail; The upper portion of the first clamp arm extends into the inner cavity of the dustproof housing to connect the first slider and the second slider, and the upper portion of the first clamp arm is provided with a first rack, which is meshed with a synchronous gear; The upper part of the second clamp arm extends into the inner cavity of the dustproof housing to connect the first slider and the second slider, and the upper part of the second clamp arm is provided with a second rack, and the second rack is meshed with the synchronous gear; The push rod of the fifth cylinder extends into the dustproof housing and connects to the upper part of the first clamp arm, and the action of the fifth cylinder drives the first clamp arm to move, and the push rod of the sixth cylinder extends into the dustproof housing and connects to the upper part of the second clamp arm, and the action of the sixth cylinder drives the second clamp arm to move, thereby realizing that the first clamp arm and the second clamp arm are brought closer to or separated from each other; It also includes a first positioning guide bar and a second positioning guide bar, wherein the first positioning guide bar is arranged in the dustproof housing, the first sliding block is closely attached to the first positioning guide bar, and the second sliding block is closely attached to the second positioning guide bar.

Images