Automatic nozzle changing device of cutting gun

Abstract

The utility model provides an automatic cutting torch changing device which comprises a support, a cutting torch feeding mechanism arranged on the support and a screwing mechanism movably arranged on the support, the discharging end of the cutting torch feeding mechanism and a cutting torch of a cutting torch are arranged side by side, and the working end of the screwing mechanism faces the cutting torch and / or the discharging end of the cutting torch feeding mechanism. The support is provided with a first driving mechanism used for driving the screwing mechanism to move so that the screwing mechanism can move to the position where a cutting torch on the cutting gun can be aligned and screwed and the position where a cutting torch at the discharging end of the feeding mechanism can be aligned and obtained. The cutting torch feeding mechanism is used for providing a new cutting torch, the old cutting torch is detached through the screwing mechanism, the new cutting torch is obtained through the screwing mechanism and then screwed to the cutting gun, the purpose of mechanically replacing the cutting torch is achieved, time and labor are saved, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting torch technical field especially relates to a cutting torch nozzle changing device. BACKGROUND

[0002] The brake drum is the key component of drum brake. The new bimetallic composite brake drum is formed by centrifugal casting of outer steel shell and inner lining gray cast iron. In the manufacturing process of the outer steel shell, a round cake is first punched out from a steel plate, and then the steel shell is spun into a cylindrical shape. After that, the lower end of the steel shell needs to be cut to remove the excess part.

[0003] In the prior art, the steel shell is cut by plasma cutting. After being used for a period of time, the cutting current and arc voltage may fluctuate greatly, or waste material may flow out after cutting is completed, so the cutting nozzle of the cutting torch needs to be replaced. In the prior art, the cutting nozzle is replaced manually, which is not only troublesome and affects product production, but also time-consuming and labor-intensive, thereby increasing production cost.

[0004] A kind of flame cutting torch cutting nozzle quick replacement device is disclosed in Chinese utility model patent with publication date of January 23, 2024 and publication number CN 220372412 U, comprising connecting rod clamping mechanism, gun body rotation-stopping mechanism, telescopic mechanism, forced reverse alignment screw mechanism, rotary impact block and impact hand wheel, the gun body rotation-stopping mechanism is used to be set on the gun body of flame cutting torch, and can control the rotation of gun body, connecting rod clamping mechanism is movably installed on the outer periphery of gun body rotation-stopping mechanism, and is used to clamp gun body in cooperation with gun body rotation-stopping mechanism, telescopic mechanism is rotatably installed in gun body rotation-stopping mechanism, and the upper end of telescopic mechanism is used to cooperate with the cutting nozzle of flame cutting torch, the lower end of telescopic mechanism extends out of gun body rotation-stopping mechanism and is rotatably connected with impact hand wheel, rotary impact block is installed on telescopic mechanism and located on the upper end of impact hand wheel, and impact hand wheel can impact rotary impact block and make telescopic mechanism drive cutting nozzle to rotate when rotating, forced reverse alignment screw mechanism is installed on gun body rotation-stopping mechanism and can be connected with telescopic mechanism. The patent can improve the replacement efficiency and safety of the cutting nozzle of the flame cutting torch. However, the patent not only has a complex structure, but also is not suitable for replacing the cutting nozzle of the plasma cutting torch. SUMMARY

[0005] To solve the problem of lack of automatic replacement device for the cutting nozzle of the plasma cutting torch in the prior art, the utility model provides an automatic nozzle replacement device for cutting torch.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] The utility model provides an automatic nozzle changing device of cutting torch, which comprises a support, a cutting nozzle feeding mechanism fixedly arranged on the support and a screwing mechanism movably arranged on the support, the discharge end of the cutting nozzle feeding mechanism is arranged side by side with the cutting nozzle of the cutting torch, and the working end of the screwing mechanism is arranged towards the cutting nozzle and / or the discharge end of the cutting nozzle feeding mechanism, the support is provided with a first driving mechanism for driving the screwing mechanism to move so that the screwing mechanism can be moved to a position for aligning and screwing the cutting nozzle on the cutting torch and a position for aligning and obtaining the cutting nozzle at the discharge end of the feeding mechanism, respectively.

[0008] Further, the screwing mechanism comprises an electric screwdriver and a conversion nozzle arranged at the front end of the electric screwdriver, one end of the conversion nozzle is connected with the rotating end of the electric screwdriver, and the other end is provided with a docking port for cooperating with the cutting nozzle to screw the cutting nozzle.

[0009] Further, the conversion nozzle comprises a sleeve arranged at the rotating end of the electric screwdriver, the docking port is arranged at the front end of the sleeve and communicates with the inside of the sleeve, and one side of the sleeve is provided with an air pipe interface for connecting the suction mechanism through the air pipe so that the conversion nozzle can suck the cutting nozzle.

[0010] Further, the screwing mechanism is provided with two, one of which is used for screwing off the old cutting nozzle in cooperation with the cutting torch, and the other is used for replacing the new cutting nozzle in cooperation with the cutting torch and the cutting nozzle feeding mechanism, and the two screwing mechanisms are arranged side by side and parallel.

[0011] Further, the first driving mechanism comprises a transverse moving part for driving the screwing mechanism to move in the direction perpendicular to the axis of the cutting nozzle, the transverse moving part is a first linear module or a first air cylinder, the fixed end of the first linear module or the first air cylinder is connected with the support, and the moving end is connected with the screwing mechanism.

[0012] Further, the first driving mechanism further comprises a front-back moving driving part for driving the screwing mechanism to move in the direction parallel to the axis of the cutting nozzle, the fixed end of the front-back moving driving part is connected with the support, the moving end is connected with a sliding support part, the fixed end of the first linear module or the first air cylinder is connected on the sliding support part so that the front-back moving driving part drives the transverse moving part and the screwing mechanism to move forward and backward, and a sliding block and a sliding rail matched with each other are arranged between the sliding support part and the support.

[0013] Further, the support is provided with a waste nozzle collecting box for collecting the old cutting nozzle.

[0014] Further, the feeding mechanism is a vibrating disc conveyor.

[0015] Further, the cutting torch lifting device is arranged on a support, and a lifting driving mechanism for driving the cutting torch lifting device is arranged on the support to lift the cutting torch for cutting work and to lower the cutting torch after the cutting work is completed.

[0016] Further, a vertical support plate is arranged on the support, and the lifting driving mechanism comprises a second linear module or a second cylinder vertically arranged on the support plate; and the cutting torch is connected to a moving end of the second linear module or the second cylinder.

[0017] The utility model discloses beneficial effects:

[0018] 1, the utility model discloses a cutting nozzle feeding mechanism for providing new cutting nozzle, through the screw mechanism dismantles old cutting nozzle, and after obtaining new cutting nozzle through the screw mechanism, the screw is twisted to the cutting torch, and the purpose of mechanized replacement cutting nozzle is achieved, and time and energy are saved, and production efficiency is improved.

[0019] 2, the utility model discloses that the new cutting nozzle is transported through the vibration disc conveyor, and the screw mechanism obtains the new cutting nozzle conveniently, and efficiency is improved.

[0020] 3, the utility model discloses a motor screwdriver and sets up the conversion mouth on the motor screwdriver, so that the device is more practical as a whole, and cost is saved. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 The utility model discloses a structural schematic diagram.

[0023] In the drawing: 1, support, 2, feeding mechanism, 3, cutting torch, 31, cutting nozzle, 4, motor screwdriver, 5, conversion mouth, 51, butt joint, 52, gas pipe interface, 6, transverse moving part, 7, front and back moving driving part, 8, sliding support, 9, waste nozzle collection box, 10, second linear module, 11, slide rail. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0025] As Figure 1 shown in the utility model embodiment 1 is a kind of automatic nozzle changing device of cutting torch, including support 1, fixedly arranged on the cutting nozzle feed mechanism 2 of support 1 and mobile setting on the screw mechanism of support 1.Cutting torch 3 is cooperatively arranged with support 1.That is, cutting torch 3 can be arranged on support 1, cutting torch 3 can also be separately arranged on a support piece, support 1 is close to support piece to make cutting nozzle feed mechanism 2 and screw mechanism cooperate with cutting torch 3 and change nozzle.In the embodiment, cutting torch 3 is arranged on support 1;Feed mechanism 2 uses the vibration disc conveyor in prior art for conveying to provide new cutting nozzle 31.The discharge end of cutting nozzle feed mechanism 2 is arranged side by side with the cutting nozzle 31 of cutting torch 3 to facilitate the work of screw mechanism.The working end of screw mechanism is arranged towards cutting nozzle 31 and / or the discharge end of cutting nozzle feed mechanism 2.In the embodiment, the axis of the rotating end of screw mechanism is always parallel to the axis of cutting nozzle 31 on cutting torch 3 and the axis of cutting nozzle 31 on the discharge end of vibration disc conveyor, to facilitate the movement and positioning of screw mechanism after obtaining or screwing cutting nozzle 31.The support 1 is provided with first driving mechanism for driving screw mechanism to move.In the embodiment, the first driving mechanism is translation driving mechanism to make screw mechanism parallel displacement, can be moved to the position where the working end of screw mechanism is aligned with cutting nozzle 31 on cutting torch 3 and can screw cutting nozzle 31 and the position where the working end of screw mechanism is aligned with cutting nozzle 31 on the discharge end of feed mechanism 2 and can screw cutting nozzle 31.

[0026] In another embodiment, screw mechanism can also be rotatably arranged on support 1, for example, rotate 90 degrees or 180 degrees, and the axis of cutting nozzle 31 on the discharge end of vibration disc conveyor is 90 degrees or 180 degrees with the axis of cutting nozzle 31 on cutting torch 3, so that screw mechanism can screw cutting nozzle 31 on cutting torch 3 or screw cutting nozzle 31 on the discharge end of feed mechanism 2 respectively before and after rotating.The first driving mechanism for driving screw mechanism to move can use rotary driving mechanism to drive screw mechanism to rotate 90 degrees or 180 degrees to be aligned with the position of cutting nozzle 31 on cutting torch 3 and the position of cutting nozzle 31 on the discharge end of feed mechanism 2 respectively and can screw.

[0027] Embodiment 2, which is different from embodiment 1, as Figure 1As shown, the screwing mechanism is provided with two, two screwing mechanism is respectively screwing mechanism A and screwing mechanism B. Screw mechanism A is matched with cutting torch 3 for screwing off the old cutting torch 31, and screwing mechanism B is matched with cutting torch 3 and feeding mechanism 2 for obtaining new cutting torch 31 and replacing new cutting torch 31 for cutting torch. In this embodiment, and two screwing mechanism is arranged side by side and parallel; and two screwing mechanism is connected with the moving end of the first driving mechanism, synchronous movement. When one of the screwing mechanism, namely screwing mechanism A, screws off the old cutting torch 31 on the cutting torch 3, the other screwing mechanism, namely screwing mechanism B, obtains the new cutting torch 31 on the discharge end of the vibrating disc conveyor. After that, two screwing mechanisms move synchronously, one screwing mechanism removes the old cutting torch 31 and moves to one side and discards, and the other screwing mechanism moves to the position corresponding to the cutting torch 31 on the cutting torch 3 with the new cutting torch 31, and then the new cutting torch 31 is screwed onto the cutting torch 3 and the cutting torch 31 is loosened. The waste nozzle collecting box 9 is arranged close to the screwing mechanism A, which is used to collect the old cutting torch removed by the screwing mechanism A.

[0028] Embodiment 3, which is different from embodiment 2, as shown in Figure 1 As shown, further, the bracket 1 is provided with a waste nozzle collecting box 9, which is arranged on one side of the cutting torch 3 and matched with one of the screwing mechanisms, for collecting the removed old cutting torch.

[0029] Embodiment 4, which is different from embodiment 2, as shown in Figure 1 As shown, two screwing mechanisms each include an electric screwdriver 4 and a conversion nozzle 5 arranged at the front end of the electric screwdriver 4, one end of the conversion nozzle 5 is connected with the rotating end of the electric screwdriver 4, and the other end is provided with a docking interface 51 matched with the cutting torch 31 for screwing the cutting torch 31. The shape of the docking interface 51 is set according to the structure of the front end of the cutting torch 31. The rotation of the electric screwdriver 4 drives the docking interface 51 to rotate, thereby screwing the cutting torch 31, and playing the role of screwing off the old cutting torch and screwing on the new cutting torch.

[0030] Further, the conversion nozzle 5 includes a sleeve arranged on the rotating end of the electric screwdriver 4, and the docking interface 51 is arranged at the front end of the sleeve and communicates with the inside of the sleeve. In this embodiment, the structure at the docking interface 51 is a small cylinder, which is located at the front end of the sleeve. The inner diameter of the small cylinder is greater than the minimum end of the front conical surface of the cutting torch 31 and less than the large end of the conical surface, so that the front end of the cutting torch 31 can partially enter the docking interface 51. The rear end of the sleeve is fixedly connected with the rotating end of the electric screwdriver 4. In this embodiment, the connection mode of the sleeve and the electric screwdriver 4 can adopt inserting a connecting shaft into the rotating end of the electric screwdriver 4, inserting the other end of the connecting shaft into the sleeve, and then fixing and connecting through transversely inserted pins.

[0031] Further, one side of the sleeve is provided with a tracheal interface 52, which is directly connected to the interface 51 inside the sleeve, and the tracheal interface 52 can be connected to a suction mechanism through a tracheal tube to suck the cutting nozzle 31 at the interface 51 of the conversion nozzle 5, so that the screwing mechanism stably sucks and obtains the cutting nozzle 31 and moves the cutting nozzle 31. Among them, the suction mechanism can use the existing technology of a dual-purpose fan with air suction and air blowing function to form positive pressure or negative pressure at the interface 51; or one tracheal interface 52 can be arranged on each side of the sleeve, and a vacuum pump and an air compressor are connected through a tracheal tube respectively to form negative pressure or positive pressure at the interface 51, or only one tracheal interface 52 is provided, and a three-way joint is connected through a tracheal tube, the other two ends of the three-way joint are connected through a pipeline respectively to a vacuum pump and an air compressor, and an electromagnetic valve is arranged on the pipeline connected to the air compressor, and positive pressure or negative pressure is formed at the interface 51 by the alternating work of the vacuum pump and the air compressor. When the cutting nozzle 31 is sucked, negative pressure is formed at the interface 51 to suck the cutting nozzle 31. When the old cutting nozzle 31 is discarded or the replaced new cutting nozzle 31 is loosened, positive pressure is formed at the interface 51 to loosen the cutting nozzle 31.

[0032] Embodiment 5, which is different from Embodiment 4, as shown in Figure 1 the first driving mechanism includes a transverse moving piece 6 for driving the screwing mechanism to move in a direction perpendicular to the axis of the cutting nozzle 31, and the fixed end of the transverse moving piece 6 is connected with the support 1 and the moving end is connected with the screwing mechanism. In this embodiment, the transverse moving piece 6 adopts a linear module in the prior art, which is horizontally arranged on the support 1 and used to drive the two screwing mechanisms to move in a horizontal direction perpendicular to the axis of the cutting nozzle 31.

[0033] Further, as shown in Figure 1 the first driving mechanism further includes a front-back moving driving piece 7 for driving the screwing mechanism to move in a direction parallel to the axis of the cutting nozzle 31, and the fixed end of the front-back moving driving piece 7 is connected with the support 1 and the moving end is connected with a sliding support 8, and the fixed end of the first linear module or the first cylinder is connected with the sliding support 8. In this embodiment, the fixed end of the first linear module is connected with the sliding support 8, so that the front-back moving driving piece 7 drives the transverse moving piece 6 and the screwing mechanism on the transverse moving piece 6 to move forward and backward. In this embodiment, the front-back moving driving piece 7 adopts a cylinder, which is horizontally arranged, and the telescopic end of the cylinder is connected with the rear side of the sliding support 8; and the telescopic direction of the cylinder is perpendicular to the moving direction of the moving end of the first linear module.

[0034] In addition, the sliding support 8 is provided with a sliding block and a sliding rail 11 matched therebetween at both ends and the support 1.

[0035] Embodiment 6, which is different from Embodiment 5, as shown inFigure 1 As shown, the cutting torch 3 is arranged on the support 1, and the support 1 is provided with a lifting driving mechanism for driving the cutting torch 3 to lift up for cutting work and to lower down for retraction after the cutting work is completed.

[0036] Further, the support 1 is provided with a vertical support plate, and the lifting driving mechanism comprises a second linear module 10 or a second cylinder vertically arranged on the support plate.

[0037] In use, as shown, Figure 1 As shown, the cutting torch is driven by the second linear module to move downward to reach the working position Y. Then the forward and backward moving driving member 7, i.e. the cylinder, is pushed forward, the screwing mechanism A removes the damaged cutting nozzle 31 of the cutting torch 3. In the process, the suction mechanism forms a negative pressure by suction to suck the removed cutting nozzle to prevent it from falling during the moving process. At the same time, the screwing mechanism B reaches the working position X to take a new cutting nozzle 31 from the vibrating disc conveyor. In the process, the suction mechanism forms a negative pressure by suction to suck the new cutting nozzle taken from the vibrating disc conveyor to prevent it from falling during the moving process.

[0038] Then the moving driving member 7 retreats, the first linear module moves leftward, and the electric screwdriver B reaches the working position Y. The moving driving member 7 is pushed forward, the electric screwdriver B installs the new cutting nozzle on the head of the cutting torch 3, and at the same time, the electric screwdriver A reaches above the waste nozzle collecting box 9 to form a positive pressure by blowing air at the connecting interface 51 to blow the old cutting nozzle out of the connecting interface and fall into the waste nozzle collecting box 9 below. Finally, the cylinder, i.e. the moving driving member 7, retreats to return to the original position.

[0039] Embodiment 7, which is different from Embodiment 1, is provided with a sensor and a controller connected therewith when the device is used for cutting the steel shell. The sensor is arranged on one side below the steel shell and is used for detecting whether the waste material cut is falling down. If not, it indicates that the cutting is not complete, and the cutting nozzle needs to be replaced. The controller is connected with the first linear module, the second linear module, the cylinder and the motor of the electric screwdriver 4 for controlling the working thereof to realize the intelligent replacement of the cutting nozzle.

[0040] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modification or equivalent replacement of the technical solutions described in the foregoing embodiments within the spirit and principles of the present application, and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A device for automatically changing a tip of a cutting torch, characterized in that, The utility model relates to a cutting nozzle feeding mechanism and a screwing mechanism for cutting nozzle, comprising a support (1), a cutting nozzle feeding mechanism (2) fixedly arranged on the support (1) and a screwing mechanism movably arranged on the support (1), the outlet end of the cutting nozzle feeding mechanism (2) is arranged side by side with the cutting nozzle (31) of a cutting gun (3), the working end of the screwing mechanism is arranged towards the cutting nozzle (31) and / or the outlet end of the cutting nozzle feeding mechanism (2), the support (1) is provided with a first driving mechanism for driving the screwing mechanism to move so that the screwing mechanism can be moved to positions for aligning and screwing the cutting nozzle (31) on the cutting gun (3) and positions for aligning and obtaining the cutting nozzle (31) at the outlet end of the feeding mechanism (2) respectively.

2. The automatic tip changer for a lancing gun according to claim 1, characterized in that The screwing mechanism comprises an electric screwdriver (4) and a conversion nozzle (5) arranged at the front end of the electric screwdriver (4), one end of the conversion nozzle (5) is connected with the rotating end of the electric screwdriver (4), and the other end is provided with a docking port (51) for cooperating with the cutting nozzle (31) to screw the cutting nozzle (31).

3. The automatic tip changer for a lancing gun according to claim 2, characterized in that The conversion nozzle (5) comprises a sleeve arranged on the rotating end of the electric screwdriver (4), the docking port (51) is arranged at the front end of the sleeve and communicates with the inside of the sleeve, and a gas pipe interface (52) is arranged on one side of the sleeve for connecting a suction mechanism through a gas pipe so that the conversion nozzle (5) can suck the cutting nozzle (31).

4. The automatic tip changer for a lancing gun according to claim 2 or 3, characterized in that The screwing mechanism is provided with two, one of which is used for unscrewing the old cutting nozzle (31) in cooperation with the cutting gun (3), and the other is used for replacing the new cutting nozzle (31) in cooperation with the cutting nozzle feeding mechanism (2) and the cutting gun (3), and the two screwing mechanisms are arranged side by side and parallel.

5. The automatic tip changer for a torch according to either one of claims 2 or 3, wherein, The first driving mechanism comprises a transverse moving part (6) for driving the screwing mechanism to move in the direction perpendicular to the axis of the cutting nozzle (31), the transverse moving part (6) is a first linear module or a first air cylinder, the fixed end of the first linear module or the first air cylinder is connected with the support (1), and the moving end is connected with the screwing mechanism.

6. The automatic tip changer for a lancing gun according to claim 5, characterized in that The first driving mechanism further comprises a forward-backward moving driving part (7) for driving the screwing mechanism to move in the direction parallel to the axis of the cutting nozzle (31), the fixed end of the forward-backward moving driving part (7) is connected with the support (1), the moving end is connected with a sliding support part (8), and the fixed end of the first linear module or the first air cylinder is connected on the sliding support part (8) so that the forward-backward moving driving part (7) drives the transverse moving part (6) and the screwing mechanism to move forward and backward, and a sliding block and a sliding rail (11) matched with each other are arranged between the sliding support part (8) and the support (1).

7. The automatic tip changer for a lancing gun according to claim 6, characterized in that The support (1) is provided with a waste nozzle collecting box (9) for collecting the old cutting nozzle (31).

8. The automatic tip changer for a torch according to any one of claims 1-3, 6 and 7, wherein, The feeding mechanism (2) is a vibrating disc conveyor.

9. The automatic tip changer for a torch according to any of claims 1-3, 6 and 7, wherein, The cutting gun (3) is arranged on the support (1) in a lifting manner, the support (1) is provided with a lifting driving mechanism for driving the cutting gun (3) to lift so that the cutting gun (3) can be lifted to work after cutting and can be lowered to be retracted after cutting is completed.

10. The automatic tip changer for a lancing gun according to claim 9, characterized in that The support (1) is provided with a vertical support plate, the lifting driving mechanism comprises a second linear module (10) or a second air cylinder arranged vertically on the support plate, and the cutting gun (3) is connected with the moving end of the second linear module (10) or the second air cylinder.

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