Automatic welding device and method thereof

Abstract

The present invention relates to an automated welding method, and the method comprises the following steps: step 1: loosening a clamp, placing a workpiece to be welded in the clamp, and then clamping the workpiece to be welded; step 2: adjusting a first lead screw by rotating a hand wheel to change the height of a support arm, thereby changing the height of a welding gun; the overall height of a welding platform is changed by adjusting a second lead screw; the first branch pipe or the second branch pipe can be adjusted by loosening a first bolt, a second bolt, a third bolt, or a fourth bolt, thereby adjusting the lateral distance of the welding gun, and tightening the second bolt after adjustment; adjusting the working angle of a swing motor by a clamp to align the welding gun with the workpiece to be welded; step 3: starting a driving device to drive the clamp to rotate, and the welding gun is swung left and right by a swing motor on the swing motor. The automated welding method designed by the present invention can realize automated welding, has strong adaptability, and is safe to operate.

Description

Technical Field

[0001] The present invention belongs to the field of automatic welding, and in particular relates to an automatic welding device and a method thereof. Background Art

[0002] Over the past 20 years, with the development of digitalization, automation, computers, and mechanical design technology, as well as the increasing emphasis on welding quality, automatic welding has become an advanced manufacturing technology. Automatic welding equipment is playing an increasingly important role in various industrial applications, and its scope of application is rapidly expanding. In modern industrial production, the mechanization and automation of the welding production process is an inevitable trend in the modernization of the welding mechanism manufacturing industry.

[0003] like Figure 3 The welding tool shown includes a clamp A25, a clamp B26, a clamp C27, a locking bolt 28, and an adjusting column 29. The adjusting column 29 is moved up and down by human pulling, and the adjusting column 29 can only be locked and fixed at a fixed height by the locking bolt 28. The clamps A25, B26, and C27 can only fix the welded parts by bolts. Since the welding tool is too bulky, there are risks in operation, and when the steel pipe or steel plate is too large or too small, it will not be able to be put down or locked. Summary of the Invention

[0004] In order to solve the existing Figure 3 The welding tool shown has the disadvantages of high risk, complicated welding process and low adaptability when operated.

[0005] The technical solution of the present invention is as follows: An automated welding device comprises a welding platform and a first lead screw fixedly connected to the welding platform, the first lead screw having an external thread, the first lead screw also having a support arm that matches the external thread, a handwheel being connected to the bottom of the support arm, an adjusting arm being fixedly connected to the support arm, a swing motor being fixedly connected to the outer end of the adjusting arm, a welding gun being provided on the swing motor, a fixture being provided on the welding platform for fixing the workpiece to be welded, and the fixture being driven to rotate by a driving device fixed to the bottom of the welding platform.

[0006] Preferably, a connecting plate is fixedly connected to the side of the telescopic end of the swing motor, and the bottom of the swing motor has an opening. The bottom of the connecting plate extends out of the opening and is fixedly connected to the welding gun. The connecting plate is L-shaped, and a clamp is fixed on the welding gun. The connecting plate and the welding gun are fixedly connected through the clamp, and the swing motor drives the welding gun to swing left and right.

[0007] Preferably, screw holes are provided on the adjusting arm and the support arm, and a first bolt and a second bolt are fixed between the support arm and the adjusting arm. The adjusting arm includes a first branch pipe, a second branch pipe, and a sleeve. The sleeve is sleeved on one end of the first branch pipe and one end of the second branch pipe, and is locked and fixed by a third bolt and a fourth bolt.

[0008] Preferably, a second lead screw is fixedly connected below the welding platform, and a fixing seat with a matching thread is also fixed to the bottom of the second lead screw.

[0009] Preferably, the driving device is a motor, which has two motors, the output shaft of the motor is fixedly connected to the clamp and there is a reducer between the output shaft of the motor and the clamp, or a driving sprocket is fixed to the output end of the motor, and a passive sprocket is fixed to the rear side of the clamp. The driving sprocket and the passive sprocket are connected by a chain, and the clamp is driven to rotate by the motor. A transmission is also fixedly connected to the bottom of the welding platform, and the transmission is used to adjust the motor speed.

[0010] Preferably, a convex tube is fixed to the rear side of the swing motor, a clamp is fixed to the outer end of the regulating arm, and the convex tube passes through the clamp and is fixedly connected by bolts.

[0011] Preferably, there are two clamps, and the clamps are three-jaw chucks.

[0012] Preferably, the clamp is arranged axially vertically or horizontally.

[0013] An automated welding method is implemented using the above-mentioned tooling, and the method comprises the following steps:

[0014] Step 1: Loosen the fixture, place the workpiece to be welded in the fixture, and then clamp the workpiece to be welded with the fixture;

[0015] Step 2: By turning the hand wheel, adjust the first screw to change the height of the support arm, and then change the height of the welding gun; rotate the first screw to adjust the adjustment arm fixed to the support arm, thereby adjusting the welding position of the welding gun and welding the parts to be welded on different fixtures; the overall height of the welding platform can be changed by adjusting the second screw; by loosening the first bolt, the second bolt, and the third bolt, the position of the first branch pipe can be adjusted, or by loosening the fourth bolt to adjust the position of the second branch pipe, thereby adjusting the lateral distance of the welding gun; adjust the working angle of the swing motor through the clamp to align the welding gun with the part to be welded;

[0016] Step 3: Start the driving device to drive the fixture to rotate, start the welding gun to weld, and when the weld is large, the welding gun swings left and right through the swing motor to weld.

[0017] Preferably, the welding platform is further provided with a quick clamping piece, which can press and fix the plate-shaped workpiece and cooperate with the welding gun for welding.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides an automated welding device and method, which can realize automated welding, and can realize welding between tubular workpieces and plate-like workpieces, welding between plate-like workpieces and plate-like workpieces, and welding between tubular workpieces and tubular workpieces, with strong adaptability and safe operation; by designing a handwheel and a lead screw sleeve for use in conjunction with the lead screw, the safety is high; by designing a clamp, the swing motor can be adjusted to rotate 360°, the structure is simple and easy to adjust; by designing a three-jaw chuck, the workpiece to be welded can be clamped, avoiding the difficult posture of looking up for welding; by designing the motor and the fixture, and the motor and the sprocket and chain, manual rotation is eliminated, and automated welding is realized; by designing the swing motor on the swing motor, the swing motor can drive the welding gun to move back and forth, and the welding is more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 A top view of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the existing welding tooling;

[0023] Figure 4 A top view of a quick-clamping member according to an embodiment of the present invention;

[0024] In the figure: 1-welding platform, 2-first lead screw, 3-support arm, 4-first branch pipe, 5-swing motor, 6-first bolt, 7-second bolt, 8-welding gun, 9-clamp, 10-handwheel, 11-sleeve, 12-second branch pipe, 13-transmission, 14-fixed seat, 15-second lead screw, 16-motor, 17-chain, 18-passive sprocket, 19-third bolt, 20-fourth bolt, 21-hoop, 22-convex pipe, 23-reducer, 24-connecting plate, 25-clamp A, 26-clamp B, 27-clamp C, 28-locking bolt, 29-adjusting column, 30-quick clamping piece. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] See also Figure 1-2 An automated welding device comprises a welding platform 1 and a first lead screw 2 fixedly connected to the welding platform 1, the first lead screw 2 having an external thread, the first lead screw 2 also having a support arm 3 with a matching thread, a handwheel 10 being connected to the bottom of the support arm 3, an adjusting arm being fixedly connected to the support arm 3, a swing motor 5 being fixedly connected to the outer end of the adjusting arm, a welding gun 8 being provided on the swing motor 5, and a clamp 9 for fixing the workpiece to be welded being provided on the welding platform 1, the clamp 9 being driven to rotate by a driving device fixed to the bottom of the welding platform 1.

[0027] Please continue to see Figure 1 In one embodiment of the present invention, a connecting plate 24 is fixedly connected to the side of the telescopic end of the swing motor 5. The bottom of the swing motor 5 has an opening. The bottom of the connecting plate 24 extends out of the opening and is fixedly connected to the welding gun 8. The connecting plate 24 is L-shaped. A clamp 21 is fixed on the welding gun 8. The connecting plate 24 is fixedly connected to the welding gun 8 through the clamp 21, and the welding gun 8 on the swing motor 5 swings left and right.

[0028] Please continue to see Figure 1 In another embodiment of the present invention, screw holes are provided on the adjusting arm and the support arm 3, and a first bolt 6 and a second bolt 7 are fixed between the support arm 3 and the adjusting arm. The adjusting arm includes a first branch pipe 4, a second branch pipe 12, and a sleeve 11. The sleeve 11 is sleeved on one end of the first branch pipe 4 and one end of the second branch pipe 12, and is locked and fixed by a third bolt 19 and a fourth bolt 20.

[0029] Please continue to see Figure 1 In one embodiment of the present invention, a second screw 15 is fixedly connected to the bottom of the welding platform 1, and a fixing seat 14 with a matching thread is fixed to the bottom of the second screw 15 to facilitate adjustment of the overall height of the tooling.

[0030] Please continue to see Figure 1 In one embodiment of the present invention, the driving device is a motor 16, which has two motors. The output shaft of the motor is fixedly connected to the fixture 9 and there is a reducer 23 between the output shaft of the motor and the fixture 9, or a driving sprocket is fixed to the output end of the motor, and a passive sprocket 18 is fixed to the rear side of the fixture 9. The driving sprocket and the passive sprocket are connected by a chain 17. The fixture 9 is driven to rotate by the motor 16. The bottom of the welding platform 1 is also fixedly connected to a transmission 13, and the transmission 13 is used to adjust the speed of the motor 16.

[0031] Please continue to see Figure 2 In one embodiment of the present invention, a convex tube 22 is fixed to the rear side of the swing motor 5, a clamp 21 is fixed to the outer end of the adjusting arm, and the convex tube 22 passes through the clamp 21 and is fixedly connected by bolts. The swing motor is adjusted to rotate 360° through the clamp 21. The structure is simple and easy to adjust.

[0032] Please continue to see Figure 1 In one embodiment of the present invention, there are two clamps, and the clamp 9 is a three-jaw chuck.

[0033] In one embodiment of the present invention, the clamp 9 is axially arranged vertically or horizontally.

[0034] An automated welding method is implemented using the above-mentioned tooling, and the method comprises the following steps:

[0035] Step 1: Loosen the clamp, place the workpiece to be welded in the clamp 9, and then clamp the clamp 9 tightly around the workpiece to be welded;

[0036] Step 2: By turning the hand wheel 10, the first screw 2 is adjusted to change the height of the support arm 3, thereby changing the height of the welding gun 8; the first screw 2 is rotated to adjust the adjustment arm fixed to the support arm 3, thereby adjusting the welding position of the welding gun 8 and welding the parts to be welded on different fixtures; the overall height of the welding platform 1 is changed by adjusting the second screw 15; the position of the first branch pipe 4 can be adjusted by loosening the first bolt 6, the second bolt 7, and the third bolt 19, or the position of the second branch pipe 12 can be adjusted by loosening the fourth bolt 20, thereby adjusting the lateral distance of the welding gun; the working angle of the swing motor 5 is adjusted by the clamp 21, so that the welding gun 6 is aligned with the part to be welded;

[0037] Step 3: Start the driving device to drive the clamp 9 to rotate, and start the welding gun 6 for welding. When the weld is large, the welding gun 6 swings left and right through the swing motor 5 to perform welding. At this time, the welding is between a tubular workpiece and a plate workpiece or between tubular workpieces.

[0038] See Figure 4 In one embodiment of the present invention, a quick clamping member 30 is provided on the welding platform. There are four quick clamping members 30. The quick clamping members 30 can press and fix the plate-shaped workpiece and cooperate with the welding gun 8 for welding.

[0039] The model of the quick clamping member 30 is CH-101-A. Two plate-like workpieces are placed in the working area of the quick clamping member 30, and the quick clamping member 30 is started to press the plate-like workpieces and perform welding to achieve welding between the plate-like workpieces.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automated welding device, characterized in that: The welding platform comprises a first lead screw fixedly connected to the welding platform, the first lead screw having an external thread, the first lead screw also having an arm matching the external thread, a hand wheel connected to the bottom of the arm, an adjustment arm fixedly connected to the arm, an outer end of the adjustment arm fixedly connected to a swing motor, a welding gun provided on the swing motor, and a fixture for fixing the workpiece to be welded on the welding platform, the fixture being driven to rotate by a drive device fixed to the bottom of the welding platform; The side of the telescopic end of the swing motor is fixedly connected to a connecting plate, the bottom of the swing motor has an opening, the bottom of the connecting plate extends out of the opening and is fixedly connected to the welding gun, the connecting plate is L-shaped, a clamp is fixed on the welding gun, the connecting plate and the welding gun are fixedly connected through the clamp, and the swing motor drives the welding gun to swing left and right; The adjusting arm and the supporting arm are provided with screw holes, and a first bolt and a second bolt are fixed between the supporting arm and the adjusting arm. The adjusting arm includes a first branch pipe, a second branch pipe, and a sleeve. The sleeve is sleeved on one end of the first branch pipe and one end of the second branch pipe and is locked and fixed by a third bolt and a fourth bolt. A second lead screw is fixedly connected to the bottom of the welding platform, and a fixing seat with a matching thread is fixed to the bottom of the second lead screw; The driving device is a motor, which has two motors. The output shaft of the motor is fixedly connected to the clamp and there is a reducer between the output shaft of the motor and the clamp, or a driving sprocket is fixed to the output end of the motor. A passive sprocket is fixed to the rear side of the clamp. The driving sprocket and the passive sprocket are connected by a chain. The clamp is driven to rotate by the motor. A transmission is also fixedly connected to the bottom of the welding platform, and the transmission is used to adjust the motor speed.

2. The automated welding device according to claim 1, characterized in that: A convex tube is fixed to the rear side of the swing motor, a clamp is fixed to the outer end of the regulating arm, and the convex tube passes through the clamp and is fixedly connected by bolts.

3. The automated welding device according to claim 2, characterized in that: There are two clamps, and the clamps are three-jaw chucks.

4. The automated welding device according to claim 3, characterized in that: The fixture axis is set vertically or horizontally.

5. An automated welding method, characterized in that: The method is implemented by an automated welding device according to claim 2, and the method steps are as follows: Step 1: Loosen the fixture, place the workpiece to be welded in the fixture, and then clamp the workpiece to be welded with the fixture; Step 2: By turning the hand wheel, adjust the first screw to change the height of the support arm, and then change the height of the welding gun; rotate the first screw to adjust the adjustment arm fixed to the support arm, thereby adjusting the welding position of the welding gun and welding the parts to be welded on different fixtures; the overall height of the welding platform can be changed by adjusting the second screw; by loosening the first bolt, the second bolt, and the third bolt, the position of the first branch pipe can be adjusted, or by loosening the fourth bolt to adjust the position of the second branch pipe, thereby adjusting the lateral distance of the welding gun; adjust the working angle of the swing motor through the clamp to align the welding gun with the part to be welded; Step 3: Start the driving device to drive the fixture to rotate, start the welding gun to weld, and when the weld is large, the welding gun swings left and right through the swing motor to weld.

6. An automated welding method according to claim 5, characterized in that: The welding platform is also provided with a quick clamping piece, which can press and fix the plate-shaped workpiece and cooperate with the welding gun for welding.

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