Multi-class automatic four-axis arc welding equipment

Abstract

The utility model relates to the technical field of car body welding, and particularly discloses a multi-class automatic four-axis arc welding device which comprises a main frame, a Z-axis module and an X-axis module, the X-axis module is installed on the main frame, the Z-axis module is connected with a sliding part of the X-axis module through a connecting plate, the X-axis module is connected with an X-axis motor through a bolt, and the X-axis motor is connected with the Z-axis module through a bolt. The X-axis motor drives the Z-axis module to transversely move along with a sliding part of the X-axis module, a Z-axis motor is installed at the bottom of the Z-axis module, and the Z-axis motor drives a sliding part of the Z-axis module to vertically ascend and descend; the Z-axis motor controls the lifting height of the welding gun, the Z-axis rotating motor controls the vertical axis of the welding gun to rotate, and the arc walking motor controls the welding gun to swing front and back. The automatic welding device can remarkably reduce labor intensity, reduces harm of welding smoke to operators, saves time and labor, is efficient and energy-saving, has good safety, achieves full-automatic welding, improves production efficiency and product quality, and further meets requirements of modern industrial production.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body welding, and in particular to a multi-category automatic four-axis arc welding device. Background Art

[0002] With the continuous development and growth of the global automotive industry, its position in the world economy is becoming increasingly prominent. The automotive industry has gradually become a pillar industry in major automobile-producing countries, and has a significant driving force and far-reaching impact on the development of the world economy and social progress. my country's automotive industry has also made great progress, and the demand for automobiles continues to grow. In recent years, with the expansion of infrastructure, freight, military and other fields, the demand for heavy-duty commercial vehicles has also increased significantly.

[0003] Body-in-white sheet metal welding is an important welding method for automobile body-in-white. It is large in size and heavy in weight. During the production of automobile front panel assembly, a rod-shaped workpiece needs to be welded to the front panel lower bracket. The workpiece is small and has high positioning requirements. The operator needs to wear gloves to complete the operation process. The whole process requires repeated loading, unloading, and welding, which seriously affects the operation efficiency. The heat during welding will produce a large amount of smoke, which will have an adverse effect on the health of the operators. Secondly, the workpiece size is relatively small, and the positioning and assembly process of the workpiece occupies most of the time in the entire operation process, which is the most important factor in low welding efficiency. Therefore, by designing this type of automated arc welding station, people can place workpieces continuously, and the welding process is replaced by machines, and frequent switching of actions during the operation is avoided as much as possible, which can directly improve work efficiency.

[0004] The lower bracket assembly of the heavy-duty commercial truck body in white is a welding process. The welding process is mainly completed by manpower, which is labor-intensive and has a large personnel density. The smoke generated during the welding process causes great harm to the operators.

[0005] For the above reasons, in order to solve the above technical problems, it is necessary to design a multi-category automatic four-axis arc welding equipment that can reduce labor intensity, reduce the number of operators, improve efficiency, and improve the working environment, so as to overcome the problems of high labor intensity, high personnel density and safety hazards in the existing technology. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-category automatic four-axis arc welding equipment.

[0007] The technical solution adopted by the utility model to solve the technical problem is: a multi-category automatic four-axis arc welding equipment, including a main frame, a Z-axis module and an X-axis module, wherein the X-axis module is installed on the main frame, the Z-axis module is connected to the sliding component of the X-axis module through a connecting plate, the X-axis module is connected to the X-axis motor through bolts, the X-axis motor drives the Z-axis module to move horizontally along with the sliding component of the X-axis module, the Z-axis motor is installed at the bottom of the Z-axis module, and the Z-axis motor drives the sliding component of the Z-axis module to perform vertical lifting and lowering movement;

[0008] The sliding parts of the Z-axis module are connected to the Z-axis rotary motor through bolts, the Z-axis rotary motor and the Z-axis harmonic reducer connecting plate are connected through bolts, the Z-axis harmonic reducer is installed at the lower part of the Z-axis harmonic reducer connecting plate, the Z-axis harmonic reducer and the arc-travel motor bracket are connected through bolts, the arc-travel motor bracket and the arc-travel motor are connected through bolts, the output shaft of the arc-travel motor is connected to the welding gun connecting bracket, the welding gun connecting bracket and the welding gun clamp are connected through bolts, the welding gun clamp and the welding gun are rigidly connected through bolts, the Z-axis motor controls the lifting height of the welding gun, the Z-axis rotary motor controls the rotation of the vertical axis of the welding gun, and the arc-travel motor controls the forward and backward swing of the welding gun.

[0009] Preferably, the main frame is rigidly connected to the main unit top cover, a vacuum cleaner is installed on the main unit top cover, and the exhaust port of the vacuum cleaner is connected to the waste pipe by bolts.

[0010] Preferably, the main frame is hinged to the wire tray through a pin, the welding wire is wound on the wire tray, the welding wire passes through the wire feeding tube slide and enters the wire feeder, the wire feeder is installed on the sliding component of the X-axis module, the wire feeding tube is installed at the outlet of the wire feeder, the wire feeder transports the welding wire to the welding gun, and the welding gun is electrically connected to the welding machine.

[0011] Preferably, flip motors are installed on both sides of the main frame, and a flip beam is installed between the output shafts of the flip motors. A transverse clamping cylinder, a rod-shaped workpiece clamping cylinder and a translation cylinder are also installed on the flip beam.

[0012] Preferably, the transverse clamping cylinder is hinged to the cylinder bracket, the cylinder bracket is connected to the flip beam by bolts, the output shaft of the transverse clamping cylinder is connected to the clamping block connecting plate, multiple workpiece clamping blocks are installed on the inner side of the clamping block connecting plate, and the transverse clamping cylinder extends to clamp the L-shaped workpiece.

[0013] Preferably, rod-shaped workpiece clamping cylinders are installed on both sides of the flip beam, workpiece clamping plates are installed between the output shafts of the rod-shaped workpiece clamping cylinders, and the rod-shaped workpiece clamping cylinders control the workpiece clamping plates to clamp the rod-shaped workpiece.

[0014] Preferably, the translation cylinder is connected to the flip beam through bolts, the output shaft of the translation cylinder is connected to the hexagonal nut clamping plate, a positioning pin is installed on the flip beam, a nut welding plate is installed on the positioning pin, a hexagonal nut is sleeved on the positioning pin, and the translation cylinder controls the hexagonal nut clamping plate to clamp the hexagonal nut.

[0015] Preferably, a handheld controller is installed on the main frame.

[0016] The utility model has the following beneficial effects:

[0017] The multi-category automatic four-axis arc welding equipment designed by this utility model can replace one operator, which can significantly reduce labor intensity, reduce the harm of welding smoke to operators, save time and effort, be highly efficient and energy-saving, have good safety, realize fully automatic welding, improve production efficiency and product quality, and further meet the needs of modern industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of multiple categories of automatic four-axis arc welding equipment Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of multiple categories of automatic four-axis arc welding equipment Figure 2 .

[0020] Figure 3 This is the main view of a variety of automatic four-axis arc welding equipment.

[0021] Figure 4 It is a side view of a multi-category automatic four-axis arc welding equipment.

[0022] Figure 5 This is a top view of a variety of automatic four-axis arc welding equipment.

[0023] Figure 6 It is a partial stereoscopic enlargement of multiple categories of automatic four-axis arc welding equipment Figure 1 .

[0024] Figure 7 This is a partial enlarged front view of multiple types of automatic four-axis arc welding equipment.

[0025] Figure 8 This is an enlarged partial side view of a variety of automatic four-axis arc welding equipment.

[0026] Figure 9 It is a partial stereoscopic enlargement of multiple categories of automatic four-axis arc welding equipment Figure 2 .

[0027] In the figure: 1-exhaust duct; 2-vacuum cleaner; 3-main unit top cover; 4-main frame; 5-Z-axis module; 6-Z-axis rotary motor; 7-Z-axis harmonic reducer connecting plate; 8-Z-axis harmonic reducer; 9-arc motor; 10-arc motor bracket; 11-welding gun connecting bracket; 12-welding gun clamp; 13-Z-axis motor; 14-wire tray; 15-wire feed tube; 16-wire feeder; 17-X-axis module; 18-X-axis motor; 19-handheld control Control device; 20-rod-shaped workpiece; 21-workpiece clamping plate; 22-L-shaped workpiece; 23-workpiece clamping block; 24-clamping block connecting plate; 25-lateral clamping cylinder; 26-cylinder bracket; 27-turning beam; 28-turning motor; 29-nut welding plate; 30-hexagonal nut; 31-locating pin; 32-hexagonal nut clamping plate; 33-welding gun; 34-rod-shaped workpiece clamping cylinder; 35-wire feed tube sliding groove; 36-welding machine; 37-translational cylinder. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely further describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Example 1.

[0030] like Figures 1-9 As shown, a multi-category automatic four-axis arc welding equipment includes a main frame 4, a Z-axis module 5 and an X-axis module 17. The moving mechanism of the Z-axis module 5 and the X-axis module 17 adopts a motor screw mode or a motor rack mode.

[0031] The X-axis module 17 is installed on the main frame 4, the Z-axis module 5 is connected to the sliding part of the X-axis module 17 through a connecting plate, the X-axis module 17 is connected to the X-axis motor 18 by bolts, the X-axis motor 18 drives the Z-axis module 5 to move horizontally along with the sliding part of the X-axis module 17, and the Z-axis motor 13 is installed at the bottom of the Z-axis module 5, and the Z-axis motor 13 drives the sliding part of the Z-axis module 5 to move vertically up and down.

[0032] The sliding parts of the Z-axis module 5 are connected to the Z-axis rotary motor 6 by bolts, and the Z-axis rotary motor 6 is connected to the Z-axis harmonic reducer connecting plate 7 by bolts. The Z-axis harmonic reducer 8 is installed at the lower part of the Z-axis harmonic reducer connecting plate 7. The Z-axis harmonic reducer 8 is connected to the arc motor bracket 10 by bolts, and the arc motor bracket 10 is connected to the arc motor 9 by bolts. The output shaft of the arc motor 9 is connected to the welding gun connecting bracket 11, and the welding gun connecting bracket 11 is connected to the welding gun clamp 12 by bolts. The welding gun clamp 12 is rigidly connected to the welding gun 33 by bolts. The Z-axis motor 13 controls the lifting height of the welding gun 33, the Z-axis rotary motor 6 controls the vertical axis rotation of the welding gun 33, and the arc motor 9 controls the forward and backward swing of the welding gun 33.

[0033] The main frame 4 is rigidly connected to the main unit top cover 3 , a vacuum cleaner 2 is installed on the main unit top cover 3 , an exhaust port of the vacuum cleaner 2 is connected to the waste pipe 1 by bolts, and a wire feeding tube chute 35 is also provided on the main unit top cover 3 .

[0034] The main frame 4 is hinged to the welding wire tray 14 through a pin. The welding wire is wound on the welding wire tray 14 and passes through the wire feeding tube slide 35 into the wire feeder 16. The wire feeder 16 is installed on the sliding component of the X-axis module 17. The wire feeding tube 15 is installed at the outlet of the wire feeder 16. The wire feeder 16 transports the welding wire to the welding gun 33, and the welding gun 33 is electrically connected to the welding machine 36.

[0035] Flip motors 28 are installed on both sides of the main frame 4, and a flip beam 27 is installed between the output shafts of the flip motor 28. The flip beam 27 is also installed with a transverse clamping cylinder 25, a rod-shaped workpiece clamping cylinder 34 and a translation cylinder 37.

[0036] The transverse clamping cylinder 25 is hinged to the cylinder bracket 26, and the cylinder bracket 26 is connected to the flip beam 27 by bolts. The output shaft of the transverse clamping cylinder 25 is connected to the clamping block connecting plate 24, and multiple workpiece clamping blocks 23 are installed on the inner side of the clamping block connecting plate 24. The transverse clamping cylinder 25 extends out to clamp the L-shaped workpiece 22.

[0037] Rod-shaped workpiece clamping cylinders 34 are installed on both sides of the flip beam 27 , and workpiece clamping plates 21 are installed between the output shafts of the rod-shaped workpiece clamping cylinders 34 . The rod-shaped workpiece clamping cylinders 34 control the workpiece clamping plates 21 to clamp the rod-shaped workpiece 20 .

[0038] The translation cylinder 37 is connected to the flip beam 27 through bolts, and the output shaft of the translation cylinder 37 is connected to the hexagonal nut clamping plate 32. A positioning pin 31 is installed on the flip beam 27, and a nut welding plate 29 is installed on the positioning pin 31. A hexagonal nut 30 is sleeved on the positioning pin 31. The translation cylinder 37 controls the hexagonal nut clamping plate 32 to clamp the hexagonal nut 30.

[0039] A handheld controller 19 is installed on the main frame 4.

[0040] The working principle of this utility model:

[0041] After the two parts (rod-shaped workpiece 20 and L-shaped workpiece 22) are placed in two areas separated by the centerline of the arc welding station, the clamping start button is pressed simultaneously, clamping the rod-shaped workpiece 20 and L-shaped workpiece 22. At this time, the start program control button is pressed, and the Z-axis module 5 drives the welding gun 33 to move within the set area according to the preset posture, so that the welding gun 33 welds the parts at the required position on the workpiece. The entire arc welding station can weld parts in two states. Each work surface is divided into two left and right areas, with four welding stations. After the worker places the workpiece on one side, he presses the program control button, and the movement mechanism starts to drive the welding gun 33 to start welding. The operator can then place the workpiece on the other side. This operation is repeated until the task is completed for the day and the switch is turned off. The welding gun 33 completes the required welding posture and trajectory under the control of the motion mechanism. The entire power of the welding gun 33 is executed by the servo motor, which is adjusted by the program controller. The mechanism moves at a specific position according to the instructions issued by the program controller, which can realize the welding of the L-shaped workpiece 22 and the rod-shaped workpiece 20, thereby realizing the effect of rotating unmanned welding operation.

[0042] The steps for using a fully automatic four-axis arc welding system are as follows:

[0043] 1) Place eight L-shaped workpieces 22 on the fixture in the left area of ​​the clamping fixture table, and at the same time place eight rod-shaped workpieces 20 on the L-shaped workpieces 22, and activate the pneumatic clamping button.

[0044] 2) Then start the program control button on one side.

[0045] 3) After the start button is turned on, the moving part of the entire mechanism drives the welding gun 33 to perform welding operations according to the set posture. After the welding action is completed, the position of the welding gun 33 automatically returns to the zero point.

[0046] 4) At this time, the workpiece on the other side is placed in the same way, and the program control button on the other side is activated, and the welding gun 33 moves again to weld the workpiece on the other side.

[0047] 5) Manually start the flip motor 28 to drive the flip beam 27 to face upward. The working surface is also divided into two working areas, left and right. The same principle is used to place the hexagonal nut 30 and the workpiece to be welded in the left area and clamp them, and start the welding process. At the same time, place the same workpiece in the right area and repeat the operation.

[0048] 6) Open the clamping button on the other side, remove the two welded workpieces and check the weld quality. Then, replace the unprocessed workpiece. Repeat this process. After 10 cycles, apply welding anti-spatter to the nozzle of the welding gun. Clean the welding slag in the area where the tooling contacts the workpiece to ensure that the workpiece is placed smoothly and in the correct position. This principle can be widely applied in various fields.

[0049] Two axes in the welding system are linear and two are rotational. The motion control trajectories of the four axes are completed by the controller. The motion of the effective weld is directly approximated by the rotation of the arc motor to obtain a linear weld. The basic structure composed of the entire motion mechanism, main frame, and arc welding station top cover is compact and space-saving.

[0050] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention.

[0051] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. A multi-category automatic four-axis arc welding equipment, characterized in that: The Z-axis module comprises a main frame, a Z-axis module and an X-axis module. The X-axis module is mounted on the main frame. The Z-axis module is connected to the sliding component of the X-axis module via a connecting plate. The X-axis module is connected to the X-axis motor via bolts. The X-axis motor drives the Z-axis module to move laterally along with the sliding component of the X-axis module. The Z-axis motor is mounted at the bottom of the Z-axis module. The Z-axis motor drives the sliding component of the Z-axis module to move vertically. The sliding parts of the Z-axis module are connected to the Z-axis rotary motor through bolts, the Z-axis rotary motor and the Z-axis harmonic reducer connecting plate are connected through bolts, the Z-axis harmonic reducer is installed at the lower part of the Z-axis harmonic reducer connecting plate, the Z-axis harmonic reducer and the arc-travel motor bracket are connected through bolts, the arc-travel motor bracket and the arc-travel motor are connected through bolts, the output shaft of the arc-travel motor is connected to the welding gun connecting bracket, the welding gun connecting bracket and the welding gun clamp are connected through bolts, the welding gun clamp and the welding gun are rigidly connected through bolts, the Z-axis motor controls the lifting height of the welding gun, the Z-axis rotary motor controls the rotation of the vertical axis of the welding gun, and the arc-travel motor controls the forward and backward swing of the welding gun.

2. The multi-category automatic four-axis arc welding equipment according to claim 1, characterized in that: The main frame is rigidly connected to the main unit top cover, a vacuum cleaner is installed on the main unit top cover, and the exhaust port of the vacuum cleaner is connected to the waste pipe through bolts.

3. The multi-category automatic four-axis arc welding equipment according to claim 1, characterized in that: The main frame is hinged to the welding wire tray through a pin, and the welding wire is wound on the welding wire tray. The welding wire passes through the wire feeding tube slide groove and enters the wire feeder. The wire feeder is installed on the sliding component of the X-axis module. The wire feeding tube is installed at the outlet of the wire feeder. The wire feeder transports the welding wire to the welding gun, and the welding gun is electrically connected to the welding machine.

4. The multi-category automatic four-axis arc welding equipment according to claim 1, characterized in that: Flip motors are installed on both sides of the main frame, and a flip beam is installed between the output shafts of the flip motors. A transverse clamping cylinder, a rod-shaped workpiece clamping cylinder and a translation cylinder are also installed on the flip beam.

5. The multi-category automatic four-axis arc welding equipment according to claim 4, characterized in that: The transverse clamping cylinder is hinged to the cylinder bracket, the cylinder bracket is connected to the flip beam by bolts, the output shaft of the transverse clamping cylinder is connected to the clamping block connecting plate, multiple workpiece clamping blocks are installed on the inner side of the clamping block connecting plate, and the transverse clamping cylinder extends out to clamp the L-shaped workpiece.

6. The multi-category automatic four-axis arc welding equipment according to claim 4, characterized in that: Rod-shaped workpiece clamping cylinders are installed on both sides of the flip beam, and workpiece clamping plates are installed between the output shafts of the rod-shaped workpiece clamping cylinders. The rod-shaped workpiece clamping cylinders control the workpiece clamping plates to clamp the rod-shaped workpiece.

7. The multi-category automatic four-axis arc welding equipment according to claim 4, characterized in that: The translation cylinder is connected to the flip beam through bolts, the output shaft of the translation cylinder is connected to the hexagonal nut clamping plate, a positioning pin is installed on the flip beam, a nut welding plate is installed on the positioning pin, a hexagonal nut is sleeved on the positioning pin, and the translation cylinder controls the hexagonal nut clamping plate to clamp the hexagonal nut.

8. The multi-category automatic four-axis arc welding equipment according to claim 1, characterized in that: A handheld controller is installed on the main frame.

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