High-strength stainless steel plate welding method and device

Abstract

The invention relates to the related technical field of plate welding, discloses a high-strength stainless steel plate welding method and device, and aims to solve the problem that a stainless steel plate with an angle is not easy to position and fasten during welding. The stainless steel plates on the right turning plate and the left turning plate can slide downwards under the gravity factor, the stainless steel plate on the left turning plate is finally pressed on the surface of the stainless steel plate on the right turning plate, the turning plate servo motor is combined to regulate and control the required deflection angle of the right turning plate and the left turning plate, and it is guaranteed that the two stainless steel plates can be fixed at the required angle; the stainless steel plate on the left turning plate is extruded on the surface of the stainless steel plate on the right turning plate, so that a welding seam of the two plates can be pressed, welding is facilitated, and finally the effects of double-plate angle adjustment and gravity pressing of a welded junction are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to plate welding, and in particular to a high-strength stainless steel plate welding method and device. Background Art

[0002] Stainless steel is a kind of steel with unique and excellent properties. It is famous for its high strength, high hardness, excellent plasticity and toughness. The surface of this steel is extremely smooth, not only beautiful, but also has high mechanical strength, and can withstand large external forces without deformation. What is more valuable is that stainless steel has excellent corrosion resistance and can withstand the erosion of acid, alkaline gas, solution and other media. This allows it to maintain its original performance in a humid and corrosive environment, is not easy to rust, and greatly extends its service life.

[0003] However, in practical applications, especially when it comes to welding operations involving stainless steel plates, especially when the plates need to be precisely butted at a certain angle, the existing operating methods are relatively cumbersome and inefficient. At present, the stainless steel plates are mainly clamped and fixed by a clamping hand, and then rotated to a suitable welding position by a motor or other mechanical means. This process not only requires precise operation and multiple adjustments, but also takes time, affecting the overall production efficiency. Therefore, how to improve the fixing and adjustment methods of stainless steel plates during welding and improve welding efficiency and accuracy has become a problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides a high-strength stainless steel plate welding method and device, which has the advantages of double-plate angle adjustment and gravity press weld, and is used to solve the problem of difficult positioning and fastening of angled stainless steel plates in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-strength stainless steel plate welding device, comprising: a welding frame, a right flap and a left flap are movably installed in the middle, and the right flap and the left flap can provide support for the stainless steel plate; the right flap and the left flap are movably installed with positioning pulleys for guiding the stainless steel plate on the surface; flap servo motors are symmetrically movably arranged on the top of the welding frame, and flap screws are fixedly installed on the output shafts of the two flap servo motors, and the sides of the right flap and the left flap are correspondingly movably installed with screw sleeves threadedly connected to the flap screws. When the flap servo motor drives the flap screw to rotate, the flap The lead screw drives the lead screw sleeve to move to deflect the right flap and the left flap, so that the stainless steel plates on the right flap and the left flap are placed at a set angle; a support sleeve is movably installed at the bottom of the right flap, and a tension spring is connected between the support sleeve and the right flap, and a positioning frame is movably installed inside the support sleeve to prevent the stainless steel plate from falling off the right flap. The stainless steel plate on the inclined left flap will be pressed on the surface of the stainless steel plate on the right flap due to gravity, so that the weld is pressed by gravity; a multi-axis robotic arm is movably installed on the top of the welding frame, and a welding machine for welding the weld is fixedly installed on the output end of the multi-axis robotic arm.

[0006] Furthermore, the side of the positioning frame is in an "L" shape.

[0007] Furthermore, an adjusting disk is movably mounted on the end of the supporting sleeve, and an adjusting screw which is threadably connected to the positioning frame is coaxially and fixedly mounted on the adjusting disk.

[0008] Furthermore, a supporting slide block is movably installed in the middle of the welding frame, and a reset push spring is connected between the supporting slide block and the welding frame, a guide arm is fastened to the side of the left flap, and the supporting slide block and the guide arm are movably connected.

[0009] Furthermore, a slide groove is opened on the surface of the right flap, a guide slide is movably installed at the bottom of the right flap, an anti-return wheel passing through the slide groove is fixedly installed on the surface of the guide slide, a guide rail frame is fastened to the side of the support sleeve, and a guide roller rod movably connected to the guide rail frame is fixedly installed at the bottom of the guide slide.

[0010] Furthermore, a cylinder is fastened to the guide slide, and a piston rod coaxially arranged with the anti-return wheel is movably installed in the cylinder, and a top head is fixedly installed on the top of the piston rod; an inclined slide is opened on one side of the left flap surface.

[0011] Furthermore, a right air whistle connected to the inner cavity of the cylinder is fixedly installed on the top of the outer side of the cylinder, and a pressure limiting valve is fixed between the right air whistle and the inner cavity of the cylinder, an air pipe connected to the inner cavity of the cylinder is fixedly installed on the bottom of the outer side of the cylinder, a pipe blocking tube is movably installed inside the cylinder, and a top tube spring is connected between the pipe blocking tube and the cylinder, and a positioning groove located at the end of the sliding seat groove is opened on the surface of the right flap.

[0012] Furthermore, an alarm hole is opened on the surface of the left flap, and the alarm hole is located at the top of the inclined surface of the inclined slide; an alarm tube connected to the alarm hole is fixedly installed at the bottom of the left flap, and the alarm tube is connected to the air pipe, and a left air whistle is fixedly installed at the end of the alarm tube.

[0013] An application method of a high-strength stainless steel plate welding device comprises the following steps:

[0014] S1. The flap servo motor drives the flap screw to rotate, and the transmission between the flap screw and the screw sleeve is used to place the right flap and the left flap horizontally, and the required stainless steel plates are respectively delivered to the surfaces of the right flap and the left flap.

[0015] S2. Turn the adjusting disk to adjust the length of the positioning frame so that it extends to the desired position, thereby changing the welding position on the surface of the stainless steel plate on the right flap.

[0016] S3. Start the flap servo motor again to drive the flap screw to rotate, causing the right flap to deflect upward. During this process, the positioning frame is relatively separated from the left flap and rises relative to the surface of the right flap under the elastic force of the tension spring; as the right flap continues to tilt, the stainless steel plate on it slides along its surface in a directed manner under the action of gravity until the edge of the stainless steel plate contacts the positioning frame.

[0017] S4. The flap servo motor on the left flap is started, driving the left flap to deflect upward until the edge of the stainless steel plate on the left flap contacts the surface of the stainless steel plate on the right flap; during this process, the stainless steel plate on the left flap is pressed against the surface of the stainless steel plate on the right flap due to gravity, and the weld between the two is further pressed by gravity.

[0018] S5. The multi-axis robotic arm drives the welding machine to move to the welding position to weld the welds of the two stainless steel plates, completing the welding of the stainless steel plates with angles.

[0019] The present invention has the following beneficial effects:

[0020] The invention provides a high-strength stainless steel plate welding method and device, which respectively drives the right flap and the left flap to deflect upward at a preset precise angle through two precisely controlled flap servo motors. This design not only ensures the flexibility of operation, but also greatly improves the accuracy of welding.

[0021] Driven by the flap servo motor, the right and left flaps slowly rise at a predetermined angle. During this process, precise control of the motor is crucial, ensuring that each deflection can reach the required welding angle, laying a solid foundation for subsequent welding operations. Subsequently, under the action of gravity, the stainless steel plates placed on the right and left flaps will naturally slide down along the slope until the stainless steel plate on the left flap is firmly pressed on the surface of the stainless steel plate on the right flap. This process makes full use of the gravity principle of physics and does not require additional clamping devices, which simplifies the operation process and reduces costs.

[0022] More advanced is that the device can adjust the deflection angle of the right and left flaps in real time through precise control of the flap servo motor, thus ensuring that the two stainless steel plates can be fixed at any desired angle. This flexibility greatly broadens the scope of application of the device, enabling it to cope with various complex and changing welding requirements.

[0023] When the stainless steel sheet on the left flap is pressed against the surface of the stainless steel sheet on the right flap, the weld between the two is naturally pressed together. This method of pressing together using the weight of the stainless steel sheet not only ensures close contact of the weld, but also greatly simplifies the preparation work before welding, making the welding process smoother and more efficient.

[0024] In summary, this high-strength stainless steel plate welding method and device, through innovative flip-plate servo motor control technology, achieves the effect of precise adjustment of the double-plate angle and gravity pressing weld, which not only improves the welding accuracy and efficiency, but also reduces the operation difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] The present invention may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0027] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic front view of the left / right flap of the present invention;

[0029] Figure 3 This is a schematic diagram of the front three-dimensional structure of the right flap of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the back of the right flap of the present invention;

[0031] Figure 5It is a schematic diagram of the internal three-dimensional structure of the support sleeve in the present invention;

[0032] Figure 6 It is a schematic diagram of the positions and three-dimensional structures of various components on the guide slide of the present invention;

[0033] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the cylinder of the present invention;

[0034] Figure 8 This is a schematic diagram of the front three-dimensional structure of the left flap of the present invention;

[0035] Fig. 9 This is a schematic diagram of the three-dimensional structure of the back of the left flap of the present invention;

[0036] Fig.10 It is a schematic diagram of the position between the alarm hole and the top head after the left / right flap is deflected in the present invention.

[0037] In the figure: 1. welding frame; 2. supporting slider; 200. reset push spring; 3. multi-axis robot arm; 4. welding machine; 5. flap servo motor; 6. flap screw; 600. screw sleeve; 7. right flap; 700. slide seat slot; 701. positioning slot; 8. left flap; 800. alarm hole; 801. inclined slide; 9. guide arm; 10. positioning pulley; 11. anti-return wheel; 12. support sleeve; 120. tension spring; 13. positioning frame; 14. guide rail frame; 15. guide slide; 151. guide roller; 16. cylinder; 161. piston rod; 17. alarm tube; 18. top head; 19. adjusting plate; 191. adjusting screw; 20. right air whistle; 21. air pipe; 22. pipe stopper; 220. top tube spring; 23. left air whistle. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] For example, see Figure 1 and Figure 2It can be seen that the welding frame 1 serves as the support of the entire mechanism, and can be fixedly installed in the desired position through the mounting holes reserved at the bottom. The right flap 7 and the left flap 8 are movably installed in the middle of the welding frame 1. In detail, the end of the right flap 7 is hinged in the middle of the welding frame 1, and the end of the left flap 8 is movably installed in the middle of the welding frame 1. The right flap 7 and the left flap 8 provide a placement platform for two stainless steel plates to be welded. Generally speaking, corresponding conveyor belts are provided on the ends of the right flap 7 and the left flap 8, and the conveyor belts can transport the stainless steel plates to be welded to the right flap 7 / left flap 8. The positioning pulley 10 movably installed on the surface of the right flap 7 / left flap 8 is used for positioning and guiding, so as to realize the movement positioning of the stainless steel plates.

[0040] The top of the welding frame 1 is symmetrically and movably installed with a flap servo motor 5, and the output shafts of the two flap servo motors 5 are fixedly installed with flap screws 6. Correspondingly, the sides of the right flap 7 / left flap 8 are movably installed with screw sleeves 600 that are threadedly connected to the flap screws 6. The screw sleeves 600 are relatively far away from the connection between the right flap 7 / left flap 8 and the welding frame 1. The flap screws 6 are controlled by the flap servo motor 5 to rotate, so that the flap screws 6 and the screw sleeves 600 deflect the corresponding right flap 7 / left flap 8 upward. By accurately controlling the rotation of the flap servo motor 5, it is possible to ensure that the right flap 7 / left flap 8 can be deflected upward at different angles, and the deflection angle between the stainless steel plates placed on the right flap 7 / left flap 8 is adjusted. It should be noted that the screw sleeve 600 in this embodiment 1 can rotate relative to the side of the right flap 7 / left flap 8, and the flap servo motor 5 can also deflect relatively on the welding frame 1. Therefore, by driving the flap servo motor 5, the right flap 7 / left flap 8 can be moved relatively stably.

[0041] In order to prevent the stainless steel plate on the right flap 7 from falling off, Figure 2 , Figure 4 and Figure 5 It can be seen that at the bottom of the right flap 7 there is a support sleeve 12 that uses a cylindrical guide rail for directional movement, and a tension spring 120 located outside the cylindrical guide rail is connected between the support sleeve 12 and the right flap 7. The elastic force of the tension spring 120 forces the support sleeve 12 to always move closer to the right flap 7. Inside the support sleeve 12 there is a positioning frame 13 that uses a rectangular parallelepiped for movable guidance, and the side shape of the positioning frame 13 is "L" shaped. Figure 2As shown, when the right flap 7 and the left flap 8 are in a relatively horizontal position, the left flap 8 presses the positioning frame 13 and causes the positioning frame 13 to drive the support sleeve 12 to pull down the tension spring 120, and the horizontal end welding of the two stainless steel plates can be completed by utilizing the plane constructed between the right flap 7 and the left flap 8; similarly, when relative deflection occurs between the right flap 7 and the left flap 8, the positioning frame 13 tends to move upward under the push of the elastic force of the tension spring 120, so that the positioning frame 13 is higher than the surface of the right flap 7, thereby preventing the stainless steel plate on the right flap 7 from directly sliding off the right flap 7 after tilting.

[0042] Furthermore, combined Figure 5 It can be seen that an adjusting disk 19 is movably mounted on the end of the support sleeve 12 away from the positioning frame 13, and an adjusting screw 191 is coaxially fixedly mounted on the adjusting disk 19 and is threadedly connected to the rectangular parallelepiped in the positioning frame 13. Therefore, the handle on the adjusting disk 19 can be used to drive the adjusting disk 19 to drive the adjusting screw 191 to rotate, so that the positioning frame 13 can be extended and retracted along the support sleeve 12. The advantage of this design is that, if Figure 2 As shown, when the adjusting plate 19 is rotated to make the positioning frame 13 move away from the supporting sleeve 12, the deflected stainless steel plate will slide downward along the right flap 7 due to its own gravity, and finally the stainless steel plate will hit the positioning frame 13. The movement of the positioning frame 13 also changes the contact position between the stainless steel surface on the right flap 7 and the end of the stainless steel plate on the left flap 8, so that the stainless steel plate on the left flap 8 can be welded to the required position of the stainless steel plate on the right flap 7.

[0043] As for the means of welding, the present application adopts a multi-axis robot arm 3, but the actual application is not limited thereto. The multi-axis robot arm 3 is movably mounted on the top of the welding frame 1, and the multi-axis robot arm 3 can move along the top of the welding frame 1, so as to facilitate changing the welding position. A welding machine 4 is fixedly mounted on the output end of the multi-axis robot arm 3, and the welding machine 4 can be used to weld two stainless steel plates, so as to realize the welding fixation work.

[0044] Specifically, the flap servo motor 5 drives the flap screw 6 to rotate, so that the flap screw 6 and the screw sleeve 600 are transmitted to place the right flap 7 and the left flap 8 horizontally, and the required stainless steel plate is conveyed to the surface of the right flap 7 / left flap 8 by the conveyor belt near the end of the right flap 7 / left flap 8. Secondly, the adjustment disk 19 is rotated to extend the positioning frame 13 to the required length, so as to change the welding position of the stainless steel plate surface on the right flap 7.

[0045] Afterwards, the flap servo motor 5 drives the flap screw 6 to rotate, causing the right flap 7 to deflect upward counterclockwise first, with the direction referenced Figure 2At this time, since the positioning frame 13 is also relatively separated from the left flap 8, the positioning frame 13 is relatively higher than the surface of the right flap 7 under the pull of the tension spring 120. As the right flap 7 continues to tilt, the stainless steel plate on the right flap 7 moves directionally along the surface of the right flap 7 under the action of gravity until the stainless steel plate hits the positioning frame 13. Afterwards, the flap servo motor 5 on the left flap 8 deflects the left flap 8 clockwise and upwards until the stainless steel plate on the left flap 8 hits the surface of the stainless steel plate on the right flap 7. At this time, the stainless steel plate on the left flap 8 is pressed on the surface of the stainless steel plate on the right flap 7 by the influence of gravity. Therefore, gravity is used to further press the weld between the two. It should be noted that in the actual welding process, the end of the stainless steel plate placed on the left flap 8 needs to first cut a corresponding inclined surface to ensure that the two stainless steel plates can be tightly pressed together.

[0046] Finally, the multi-axis robot arm 3 drives the welder 4 to weld the welds of the two stainless steel plates. At this point, the welding of the stainless steel plates with an angle is completed.

[0047] The second embodiment is a further improvement on the basis of the first embodiment. Figure 1 and Figure 8 It can be seen that a support slider 2 is movably installed in the middle of the welding frame 1, and a reset spring 200 connected between the support slider 2 and the welding frame 1 always pushes the support slider 2 toward the welding frame 1. Correspondingly, a guide arm 9 is fastened and connected by bolts on the side of the left flap 8, and the support slider 2 and the guide arm 9 are movably connected by a cylindrical rod. Specifically, as Figure 1 As shown, a cylindrical guide rod is provided in the middle of the supporting slider 2, and the guide rod is inserted into the rectangular groove opened on the side of the guide arm 9. In actual application, in order to further prevent the movement between the guide rod and the rectangular groove, a push spring can be added to the rectangular groove. The push spring between the guide arm 9 and the guide rod can be used to ensure that the guide rod is always close to the left flap 8 and tightly attached to one end of the rectangular groove.

[0048] The advantage of this design is that when the flap screw 6 and the screw sleeve 600 pull the left flap 8 to deflect upward clockwise, the welding fixation purpose as described in Example 1 is achieved. After welding is completed, the flap servo motor 5 drives the flap screw 6 to rotate further, forcing the right flap 7 and the left flap 8 to deflect relative to each other again and get closer. At this time, since the stainless steel sheet between the right flap 7 and the left flap 8 has been welded and fixed, if the two are close again, the welded stainless steel sheet will be squeezed. Since the right flap 7 is hinged to the welding frame 1, it will not move. The left flap 8 and the welding frame 1 are movably connected by the support slider 2. When the left flap 8 is further deflected upward, the stainless steel sheet will be squeezed. Since the left flap 8 and the flap screw 6 are movably connected via the screw sleeve 600, when the top of the left flap 8 further approaches the flap servo motor 5, compared with using the welded stainless steel plate as a fulcrum, the bottom of the left flap 8 suppresses the reset push spring 200 via the supporting slider 2, thereby preventing the right flap 7 and the left flap 8 from rigidly squeezing the welded stainless steel plate. Fig.10 The state shown in the figure on the right side of the figure (the Y shape is the two stainless steel plates after welding). In this way, the welded stainless steel plates can be pressed, that is, the weld bears the elastic force of the reset spring 200. If the welding is not in place, the two stainless steel plates will be de-welded under the elastic force of the reset spring 200, and the original welding shape cannot be maintained.

[0049] Example 3 is a further improvement on Example 2. Figure 3-Figure 6 It can be seen that a slide groove 700 is provided on the surface of the right flap 7, a guide slide 15 is movably installed at the bottom of the right flap 7, and an anti-return wheel 11 passing through the slide groove 700 is fixedly installed on the surface of the guide slide 15. Therefore, the slide groove 700 limits the movement range of the anti-return wheel 11, so that the anti-return wheel 11 can move within a certain range on the surface of the right flap 7. In order to make the movement state of the guide slide 15 controllable, a guide rail frame 14 is fastened and connected by bolts to the side of the support sleeve 12, and the guide rail frame 14 is inclined toward the bottom of the right flap 7. At the same time, a guide roller 151 movably connected to the guide rail frame 14 is fixedly installed at the bottom of the guide slide 15. Specifically, a rectangular groove arranged obliquely upward is provided in the guide rail frame 14, and the guide roller 151 is placed in the rectangular groove. The advantage of this design is that under normal conditions, the right flap 7 and the left flap 8 are in a horizontal state, the left flap 8 squeezes the positioning frame 13 to make the support sleeve 12 move downward and drive the guide rail frame 14 to move downward synchronously, and the guide roller 151 will drive the guide slide 15 to move toward the side of the right flap 7 due to the downward movement of the guide rail frame 14, so that the anti-return wheel 11 is quite far away from the middle of the right flap 7, that is, Figure 3The position shown. In this way, it can be ensured that the plate will not be blocked by the anti-return wheel 11 when it is input from the end of the right flap 7, and the plate input to the surface of the right flap 7 can finally be positioned by the positioning pulley 10. When the right flap 7 and the left flap 8 are relatively deflected, the elastic force of the tension spring 120 will cause the support sleeve 12 to move upward, and the support sleeve 12 will simultaneously drive the guide rail frame 14 to move upward. When the guide roller 151 moves along the guide rail frame 14, the guide slide 15 drives the anti-return wheel 11 to move to the middle of the right flap 7. Afterwards, when the two plates are welded, the right flap 7 and the left flap 8 are relatively deflected and approached to further squeeze the stainless steel plate. If the two plates are squeezed and have a tendency to move upward along the right flap 7, they will be blocked by the anti-return wheel 11, which can prevent the stainless steel plate from accidentally moving upward along the right flap 7.

[0050] On this basis, combined with Figure 6-Figure 8 It can be seen that the guide slide 15 is fastened with a cylinder 16, and a piston rod 161 coaxially arranged with the anti-return wheel 11 is movably installed in the cylinder 16, and a head 18 passing through the middle of the anti-return wheel 11 is fixedly installed on the top of the piston rod 161. When the air pump delivers air to the inside of the cylinder 16, the piston rod 161 can be extended / retracted. Correspondingly, an inclined slide 801 is opened on one side of the surface of the left flap 8. When the right flap 7 and the left flap 8 have completed the upward deflection, the head 18 corresponds to the inclined slide 801, as shown in FIG. Fig.10 As shown. Afterwards, the piston rod 161 in the cylinder 16 is extended outward by controlling the air pump, so that the top 18 can be pushed against the inclined slide 801. Since the inclined slide 801 is relatively inclined, when the top 18 is continuously extended, the top 18 will first move along the inclined slide 801, which means that the top 18 drives the guide slide 15 to move toward the side of the right flap 7. As mentioned above, when the guide slide 15 approaches the side of the right flap 7, the support sleeve 12 will pull down the positioning frame 13 and further lengthen the tension spring 120. On the one hand, as the top 18 is continuously pushed outward, the left flap 8 will be deflected outward with the screw sleeve 600 as the rotation point, further increasing the distance between the right flap 7 and the left flap 8, so as to facilitate the falling of the plate after welding between the two; on the other hand, due to the retraction of the positioning frame 13, the falling stainless steel plate will not be blocked.

[0051] Moreover, combined with Figure 7It can be seen that in the third embodiment, a right air whistle 20 communicating with the inner cavity of the cylinder 16 is fixedly installed on the outer top of the cylinder 16, and a pressure limiting valve is fixed between the right air whistle 20 and the inner cavity of the cylinder 16. When the pressure in the inner cavity of the cylinder 16 is greater than the pressure of the pressure limiting valve, the airflow is discharged from the right air whistle 20 and a sound is emitted. In more detail, the pressure limiting valve is similar to a one-way valve, which includes a stopper bead and a spring, and the stopper bead is used to block the area between the right air whistle 20 and the inner cavity of the cylinder 16. When the airflow pressure is sufficient to overcome the elastic force of the spring, the gas will flow. An air pipe 21 communicating with the inner cavity of the cylinder 16 is fixedly installed at the bottom of the outer side of the cylinder 16, and a pipe blocking tube 22 is movably installed inside the cylinder 16, and a spring 220 is connected between the pipe blocking tube 22 and the cylinder 16. Under normal circumstances, the pipe blocking tube 22 is pushed upward by the elastic force of the spring 220, and the air pipe 21 is blocked by the outer wall. Only when airflow is applied to the top of the cylinder 16 to move the piston rod 161 downward, the bottom of the piston rod 161 can push the pipe blocking tube 22 and press down the spring 220, finally making the inner cavity of the cylinder 16 and the air pipe 21 directly connected. For the control of driving the downward position of the pipe blocking tube 22, combined with Figure 3 It can be seen that a positioning groove 701 is provided on the surface of the right flap 7 at the end of the sliding seat groove 700. Only when the head 18 moves to above the positioning groove 701, by applying a downward moving airflow to the cylinder 16, the piston rod 161 will be squeezed downward and finally hit the blocking tube 22.

[0052] Correspondingly, the combination Figure 8 and Fig. 9 It can be seen that an alarm hole 800 is provided on the surface of the left flap 8, and the alarm hole 800 is located at the top of the inclined surface of the inclined slide 801. An alarm cylinder 17 communicating with the alarm hole 800 is fixedly installed at the bottom of the left flap 8, and the other end of the air pipe 21 is fixedly installed on the outside of the alarm cylinder 17. The air pipe 21 can realize the mutual communication between the inner cavity of the alarm cylinder 17 and the inner cavity of the cylinder 16. A left air whistle 23 is fixedly installed at the end of the alarm cylinder 17. When gas passes through the left air whistle 23, the left air whistle 23 will make a sound. More importantly, Figure 8 It can be seen that an annular rubber ring is fixedly installed at the end of the alarm hole 800, and the rubber ring is aligned with the surface of the left flap 8. Since the rubber ring has the characteristic of recovering after being squeezed, when the plate is attached to the alarm hole 800, the airflow in the alarm hole 800 will not overflow by the sealing of the rubber ring.

[0053] The advantage of this method is that under normal conditions, the flap servo motor 5 controls the flap screw 6 to rotate, so that the right flap 7 and the left flap 8 are in a relatively horizontal state. The left flap 8 presses the positioning frame 13 to lengthen the tension spring 120, and the guide rail frame 14 moves downward to drive the guide roller 151 to drive the anti-return wheel 11 on the guide slide 15 to move closer to the side of the right flap 7, thereby ensuring that the stainless steel plate on the conveyor belt will not be blocked by the anti-return wheel 11 when being transported to the right flap 7.

[0054] Afterwards, the flap servo motor 5 first controls the right flap 7 to deflect upward. When it deflects to a preset angle, the left flap 8 is then deflected upward, so that the stainless steel plate between the right flap 7 and the left flap 8 is placed at a certain angle. During this process, if the length of the stainless steel plate on the right flap 7 is too long, it will make it difficult to detach later. During the deflection of the right flap 7, the positioning frame 13 will also move away from the left flap 8. Under the pull of the tension spring 120, the support sleeve 12 drives the positioning frame 13 and the guide rail frame 14 to push upward. The positioning frame 13 is higher than the surface of the right flap 7 to prevent the stainless steel plate from falling off the surface of the right flap 7. The guide rail frame 14 moves upward to make the anti-return wheel 11 approach the middle of the right flap 7. Because the plate is too long at this time and blocks the movement path of the anti-return wheel 11, the top head 18 cannot move to the top of the positioning slot 701. Afterwards, the air pump applies airflow from the top of the cylinder 16, and the airflow pushes the piston rod 161 downward, but the top head 18 will eventually hit the surface of the right flap 7 after going down, which will cause the piston rod 161 to be unable to go down before squeezing the stop tube 22. As the airflow pressure in the inner cavity of the cylinder 16 continues to increase, the airflow eventually overcomes the pressure of the pressure-limiting valve, causing the airflow to flow out from the right air whistle 20 and make a sound. The operator can judge that the plate on the right flap 7 is too long through the right air whistle 20. In addition, if the plate on the left flap 8 is too long, the top head 18 will normally move to the top of the slot 701. After the airflow is input from the top inner cavity of the cylinder 16, the piston rod 161 will eventually push the stop tube 22 downward to compress the top tube spring 220, and the airflow flows from the air pipe 21, and the air pipe 21 will eventually transport the airflow to the alarm tube 17. Since the plate on the left flap 8 is too long at this time, it will press on the alarm hole 800, so that the airflow in the alarm hole 800 can only be discharged from the left air whistle 23, and the airflow passing through the left air whistle 23 will make a sound, thereby alerting the operator that the plate on the left flap 8 is too long. At this point, the sound can be used to determine whether the length of the plate input on the right flap 7 and the left flap 8 is too long, so as to prevent the problem of difficulty in unloading in the later stage due to the plate being too long.

[0055] After the length detection of the plates is completed, the multi-axis robot arm 3 controls the welder 4 to weld the weld seam between the two plates to achieve a tight connection between the two plates.

[0056] Afterwards, the flap servo motor 5 is used to pull the left flap 8 upward to deflect. Since the left flap 8 is blocked by the plate, the top of the left flap 8 is the driving point, and the contact point between the plate and the left flap 8 is the fulcrum, so that the bottom of the left flap 8 drives the support slider 2 to squeeze the reset spring 200, and the strength of the welding between the plates is tested by the elastic force of the reset spring 200. When the left flap 8 cannot deflect upward, the flap servo motor 5 controls the right flap 7 to deflect upward until the right flap 7 cannot deflect upward again.

[0057] If the welding between the plates of the right flap 7 and the left flap 8 is not strong during the deflection process, the bottom of the left flap 8 cannot overcome the elastic force of the reset spring 200. Under the push of the reset spring 200, the left flap 8 and the right flap 7 will eventually be in a relatively parallel state. Fig.10 As shown on the left side. Afterwards, by applying airflow to the bottom of the cylinder 16, the piston rod 161 is pushed outward, but at this time the alarm hole 800 and the plug 18 are just in a relatively coaxial state. When the plug 18 is pushed into the alarm hole 800, since the airflow in the alarm hole 800 can only be discharged from the left air whistle 23, the left air whistle 23 will be forced to make a sound, alerting the operator that there is a problem with the plate welding between the right flap 7 and the left flap 8, and maintenance is required.

[0058] Similarly, if the welding between the plates is relatively strong, such as Fig.10 As shown on the right. At this time, the alarm hole 800 and the top head 18 are not on the same axis. Combined with the relative inclination of the inclined slide 801, when the piston rod 161 is pushed outward, it will first move along the inclined slide 801, forcing the cylinder 16 to drive the guide slide 15 to move to the outer side of the right flap 7. When the guide slide 15 drives the guide roller 151 to move along the guide rail frame 14, the support sleeve 12 will pull the positioning frame 13 below the surface of the right flap 7. Afterwards, as the top head 18 continues to push the left flap 8, the left flap 8 deflects with the top as the fulcrum, the distance between the right flap 7 and the left flap 8 is further increased, and the plate falls off from between the two. At this point, the welding and stiffness testing of the plate are completed.

[0059] Finally, the flap servo motor 5 drives the right flap 7 and the left flap 8 to be in a relatively horizontal state again, thereby resetting the entire device.

Claims

1. A high-strength stainless steel plate welding device, characterized in that: include: The welding frame (1) has a right flap (7) and a left flap (8) movably mounted in the middle, and the right flap (7) and the left flap (8) can provide support for the stainless steel plate; positioning pulleys (10) for guiding the stainless steel plate are movably mounted on the surfaces of the right flap (7) and the left flap (8); The flap servo motors (5) are symmetrically arranged on the top of the welding frame (1). The output shafts of the two flap servo motors (5) are fixedly mounted with flap screws (6). The sides of the right flap (7) and the left flap (8) are correspondingly mounted with screw sleeves (600) threadedly connected to the flap screws (6). When the flap servo motors (5) drive the flap screws (6) to rotate, the flap screws (6) drive the screw sleeves (600) to move to realize the deflection of the right flap (7) and the left flap (8), so that the stainless steel plates on the right flap (7) and the left flap (8) are placed at a set angle. A support sleeve (12) is movably mounted on the bottom of the right flap (7), and a tension spring (120) is connected between the support sleeve (12) and the right flap (7). A positioning frame (13) is movably mounted inside the support sleeve (12) to prevent the stainless steel plate from falling off the right flap (7). The stainless steel plate on the inclined left flap (8) is pressed against the surface of the stainless steel plate on the right flap (7) by gravity, so that the weld is pressed by gravity. The multi-axis mechanical arm (3) is movably mounted on the top of the welding frame (1), and a welding machine (4) for welding the weld seam is fixedly mounted on the output end of the multi-axis mechanical arm (3).

2. The high-strength stainless steel plate welding device according to claim 1, characterized in that: The side of the positioning frame (13) is in an "L" shape.

3. The high-strength stainless steel plate welding device according to claim 1, characterized in that: An adjusting disk (19) is movably mounted on the end of the supporting sleeve (12), and an adjusting screw (191) threadedly connected to the positioning frame (13) is coaxially fixedly mounted on the adjusting disk (19).

4. The high-strength stainless steel plate welding device according to claim 1, characterized in that: A support slide block (2) is movably installed in the middle of the welding frame (1), and a reset push spring (200) is connected between the support slide block (2) and the welding frame (1). A guide arm (9) is fastened to the side of the left flap (8), and the support slide block (2) and the guide arm (9) are movably connected.

5. The high-strength stainless steel plate welding device according to claim 4, characterized in that: A slide groove (700) is provided on the surface of the right flap (7), a guide slide (15) is movably mounted on the bottom of the right flap (7), an anti-return wheel (11) passing through the slide groove (700) is fixedly mounted on the surface of the guide slide (15), a guide rail frame (14) is fastened to the side of the support sleeve (12), and a guide roller (151) movably connected to the guide rail frame (14) is fixedly mounted on the bottom of the guide slide (15).

6. The high-strength stainless steel plate welding device according to claim 5, characterized in that: A cylinder (16) is fixedly connected to the guide slide seat (15), and a piston rod (161) coaxially arranged with the anti-return wheel (11) is movably installed in the cylinder (16), and a top head (18) is fixedly installed on the top of the piston rod (161); an inclined slideway (801) is provided on one side of the surface of the left flap (8).

7. The high-strength stainless steel plate welding device according to claim 6, characterized in that: A right air whistle (20) communicating with the inner cavity of the cylinder (16) is fixedly installed on the top of the outer side of the cylinder (16), and a pressure limiting valve is fixed between the right air whistle (20) and the inner cavity of the cylinder (16). An air pipe (21) communicating with the inner cavity of the cylinder (16) is fixedly installed on the bottom of the outer side of the cylinder (16). A pipe blocking tube (22) is movably installed inside the cylinder (16), and a top tube spring (220) is connected between the pipe blocking tube (22) and the cylinder (16). A positioning groove (701) located at the end of the slide seat groove (700) is opened on the surface of the right flap (7).

8. The high-strength stainless steel plate welding device according to claim 7, characterized in that: An alarm hole (800) is provided on the surface of the left flap (8), and the alarm hole (800) is located at the top of the inclined surface of the inclined slideway (801); an alarm tube (17) communicating with the alarm hole (800) is fixedly installed at the bottom of the left flap (8), and the alarm tube (17) is connected to the air pipe (21), and a left air whistle (23) is fixedly installed at the end of the alarm tube (17).

9. An application method of the high-strength stainless steel plate welding device according to claim 3, characterized in that: The following steps are involved: S1, the flap servo motor (5) drives the flap screw (6) to rotate, and the right flap (7) and the left flap (8) are placed horizontally by using the transmission between the flap screw (6) and the screw sleeve (600), and the required stainless steel plates are respectively transported onto the surfaces of the right flap (7) and the left flap (8); S2, rotating the adjusting plate (19) to adjust the length of the positioning frame (13) so that it is extended to a desired position, thereby changing the welding position of the surface of the stainless steel plate on the right flap (7); S3, start the flap servo motor (5) again, drive the flap screw (6) to rotate, and make the right flap (7) deflect upward. In this process, the positioning frame (13) is relatively separated from the left flap (8) and rises relative to the surface of the right flap (7) under the elastic force of the tension spring (120); as the right flap (7) continues to tilt, the stainless steel plate thereon slides along its surface in a directional manner under the action of gravity until the edge of the stainless steel plate contacts the positioning frame (13); S4, the flap servo motor (5) on the left flap (8) is started, driving the left flap (8) to deflect upward until the edge of the stainless steel plate on the left flap (8) contacts the surface of the stainless steel plate on the right flap (7); during this process, the stainless steel plate on the left flap (8) is pressed against the surface of the stainless steel plate on the right flap (7) due to gravity, and the weld between the two is further pressed together by gravity; S5. The multi-axis robot arm (3) drives the welding machine (4) to move to the welding position, welds the weld seams of the two stainless steel plates, and completes the welding of the stainless steel plates with an angle.

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