Anti-collision plasma torch cutting gun

Abstract

The utility model discloses a kind of anti-collision plasma flame torch cutting torch, including cutting torch main body, collar group, swing disc and electrode group. Collar group is made of positioning ring and float ring, electrode group is arranged therebetween, float ring can cause electrode sheet separation when contact with external object, trigger alarm. Swing disc is movably sleeved in the outer periphery of cutting torch main body, multiple contact rods and isolation plates are arranged thereon;When longitudinal or oblique contact occurs, contact rod is contacted with barrier to cause swing, drives isolation plate to be inserted between electrode sheet, realizes disconnect detection. Isolation plate is connected with positioning ring by spring, with automatic reset function. The structure realizes 360 degrees omnidirectional lateral collision detection and longitudinal, oblique protection, with the advantages of fast response, simple structure, strong self-resetting capability, etc., suitable for collision sensing and safety control of cutting torch in plasma cutting operation.

Description

Technical Field

[0001] This utility model relates to the field of plasma cutting equipment technology, specifically to an anti-collision plasma torch cutting gun. Background Technology

[0002] Plasma torches are tools commonly used for metal cutting and industrial welding, widely applied in shipbuilding, steel structure fabrication, and heavy industrial assembly. These devices typically use a high-temperature plasma arc to efficiently cut materials. During processing, operators must manually or automatically control the torch and frequently move it in different directions and positions. Due to the complex operating environment, there is a high risk of unexpected collisions between the torch head and external workpieces or structures, especially in confined spaces or automated systems. Collisions can lead to equipment damage, personnel injury, or reduced cutting accuracy, impacting production safety and efficiency.

[0003] Currently, some anti-collision structures are used in torch-type equipment, such as those employing mechanical limit mechanisms, pressure sensors, or edge switches to detect collisions. While these technologies offer some protection, they still have the following shortcomings: Limited protection: Traditional structures mainly rely on unidirectional or limited multidirectional sensing, which cannot achieve all-round (especially 360-degree horizontal) collision monitoring of the cutting torch body. They are prone to failure when impact occurs in directions other than the set direction, resulting in safety blind spots.

[0004] Complex structure and poor stability: Some devices use multi-level linkage or electronic sensor combination, which increases the complexity of the structure, makes installation and debugging inconvenient, and has poor stability and environmental adaptability. In addition, it is prone to false alarms or failures in electromagnetic interference or high temperature and dust environments.

[0005] Longitudinal / oblique protection response lag: During torch operation, when a slight impact occurs longitudinally or obliquely downward, traditional devices often have difficulty in timely detection and response, and cannot effectively distinguish between touching and non-dangerous contact, resulting in false alarms or failure to shut down the power in time.

[0006] The reset mechanism is missing or relies on external force: some devices require manual intervention to reset after the alarm is triggered, which cannot quickly restore the normal working state and affects the continuity and efficiency of operation.

[0007] In summary, existing anti-collision plasma torch cutting torches still have significant shortcomings in terms of multi-directional sensing, timely protective response, structural stability, and automatic reset capability. There is an urgent need for an improved anti-collision cutting torch device with a simpler structure, more sensitive response, support for multi-directional sensing, and automatic reset capability to meet the pressing needs of industrial sites for safety and high efficiency. Utility Model Content

[0008] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] Therefore, the technical solution adopted by this utility model is: an anti-collision plasma torch cutting torch, comprising: a cutting torch body, a collar assembly, a swing disk, and an electrode assembly. The overall structure is compact, highly adaptable, and easily integrated into existing plasma torch systems.

[0010] In a preferred embodiment, the collar assembly includes a positioning ring and a floating ring, which are respectively fixedly disposed on the upper and lower surfaces of the electrode assembly. The outer diameter of the floating ring is larger than that of the positioning ring and is sleeved on the outer periphery of the cutting torch body, preferentially contacting foreign objects during lateral collisions. The external force on the floating ring causes deformation of the inner elastic support foot, thereby causing the upper and lower electrode plates to separate, and thus outputting a disconnect signal.

[0011] Specifically, the floating structure can achieve 360-degree omnidirectional lateral collision avoidance perception, avoid blind spots in any direction, and improve the safety protection range of the equipment.

[0012] In a preferred embodiment, the oscillating disc is movably mounted on the outside of the cutting torch body. Several contact rods are arranged in a radiating pattern on the lower surface of the oscillating disc to sense longitudinal or oblique downward contact. When such contact occurs, the contact rods are forced to rotate or deflect the oscillating disc, causing the connected isolation plate to move upwards or tilt upwards, thereby inserting itself between the two electrode plates and triggering their disconnection.

[0013] Specifically, the longitudinal and oblique impact response structures effectively fill the blind spots in lateral protection and enhance the three-dimensional full-coverage detection capability.

[0014] In a preferred embodiment, the isolation plate has a through hole, and its top end is connected to the bottom surface of the positioning ring via a connecting spring, providing a spring-loaded reset function. After the impact is eliminated, the isolation plate can automatically reset to its initial position under the action of gravity and elastic restoring force, preventing false triggering from persisting and ensuring system stability.

[0015] Specifically, the design has excellent self-healing capabilities, requires no manual intervention, and improves the continuity and intelligence of operations.

[0016] In a preferred example, the electrode assembly consists of two spherical arcuate metal electrodes arranged close together, with several support feet on its outer periphery for support and restraint. The support feet are made of insulating material and have elasticity, enabling stable conduction and disconnection logic when the electrode electrodes separate.

[0017] Specifically, the electrode assembly structure has a rapid response and good repeatability, ensuring that the trigger signal is accurate and free from interference.

[0018] In a preferred example, the number of electrode groups and isolation plates is set to several groups, which are evenly distributed in a circumferential direction along the outer periphery of the cutting torch body, and the electrode groups and isolation plates correspond one to one.

[0019] Specifically, the multi-group, equally spaced arrangement enables comprehensive monitoring and independent triggering of zones, resulting in high system sensitivity and strong reliability.

[0020] In a preferred example, the electrode is made of metal to ensure conductivity and stability of electrical signal output; the support and the isolation plate are both made of insulating material to avoid stray current causing malfunctions or electrical interference.

[0021] Specifically, the differentiated configuration of materials ensures the safety of the electrical system and the accuracy of signal response.

[0022] In summary, this utility model, by integrating a floating sensing structure, an insertable isolation structure, and a reset elastic element, achieves rapid response, accurate alarm, and automatic recovery of the cutting torch under lateral, longitudinal, and oblique collisions. It significantly improves the safety, intelligence level, and industrial site adaptability of the equipment. It has the advantages of compact structure, convenient installation, reliable operation, and significant technical effects, and is suitable for widespread application in plasma cutting and related automated operations.

[0023] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting up multiple sets of electrodes consisting of floating rings, positioning rings and elastic support feet, collision detection of the cutting torch in all directions is realized. When a collision occurs in any direction, the electrodes are disconnected, which can trigger an alarm and stop the machine, effectively improving the safety and reliability of the plasma torch in complex environments.

[0024] 2. In this utility model, by setting a contact rod and an isolation plate on the swing plate, combined with an elastic connecting spring and an inlet-type through-hole structure, the response triggering for longitudinal and oblique downward impacts is realized. It has a self-resetting function, simple structure, sensitive action, avoids false triggering, and ensures the stability and efficient response capability of the equipment during dynamic use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the collar assembly and swing disk structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the oscillating disk mounting structure according to an embodiment of the present invention; Figure 4 This is an exploded view of the electrode assembly and isolation plate according to an embodiment of the present invention.

[0026] Figure label: 100. Main body of the cutting gun; 200. Ring assembly; 210. Positioning ring; 220. Floating ring; 211. Connecting spring; 300. Swing plate; 310. Contact rod; 320. Isolation plate; 321. Through hole; 400. Electrode assembly; 410. Electrode sheet; 420. Support foot. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an anti-collision plasma torch cutting gun.

[0030] Combination Figures 1-4 As shown, the present invention provides an anti-collision plasma torch cutting torch, comprising a cutting torch body 100, a collar assembly 200, a swing disk 300, and an electrode assembly 400.

[0031] The cutting torch body 100 is the core component of the plasma cutting equipment. It is used to install nozzles, electrodes and other welding and cutting mechanism components, and is the execution structure for the movement and cutting operation of the whole machine.

[0032] The collar assembly 200 includes a positioning ring 210 and a floating ring 220. The positioning ring 210 and the floating ring 220 are respectively fixedly disposed between the upper and lower surfaces of the electrode assembly 400. The positioning ring 210 is fixedly connected to the cutting torch body 100 and serves as a structural positioning reference. The outer diameter of the floating ring 220 is larger than that of the positioning ring 210. It is sleeved on the outer periphery of the cutting torch body 100 and does not directly contact the surface of the cutting torch body 100. It allows for angular displacement around its central axis when a lateral impact occurs, thereby realizing a floating swing function.

[0033] The electrode assembly 400 includes two opposing electrode plates 410. Each electrode plate 410 has a spherical arcuate convex structure with its convex surfaces facing each other, in a close-fitting state. Several support legs 420 are provided on the outer periphery of the two electrode plates 410. These support legs 420 are made of elastic material and are respectively connected between the inner surfaces of the positioning ring 210 and the floating ring 220. They are used to fix the two electrode plates 410 between the positioning ring 210 and the floating ring 220, and also have a deformation function: when the cutting torch body 100 experiences a lateral collision, the floating ring 220 is displaced by external force, causing the support legs 420 to bend elastically, thereby causing the two electrode plates 410 to separate, forming an open state, triggering the corresponding stop and alarm control circuit.

[0034] like Figure 3 and Figure 4 As shown, the swing disk 300 is disposed on the outer periphery of the cutting torch body 100 and is movably connected to the cutting torch body 100. Several contact rods 310 are evenly distributed on its bottom in a radially outward-spreading structure, used to first contact external obstacles when the cutting torch impacts longitudinally or obliquely. Several isolation plates 320 are connected to the upper surface of the swing disk 300. The top of each isolation plate 320 is connected to the bottom surface of the positioning ring 210 via a connecting spring 211, providing an elastic return function.

[0035] The isolation plate 320 is a long strip structure with a through hole 321. The through hole 321 can shift its position relative to the electrode group 400 during the movement of the isolation plate 320. When the isolation plate 320 moves upward axially or tilts upward, it can be inserted between the two electrode plates 410, causing them to break apart, thereby triggering an electrode disconnection signal to stop and alarm the cutting torch system.

[0036] In one possible implementation, when the cutter body 100 contacts an obstacle in the lateral direction, the float ring 220, due to its larger outer diameter than the positioning ring 210, preferentially contacts the object and is subjected to external force, causing the support leg 420 to undergo elastic deformation. This disengages the two electrode plates 410, triggering a disconnection signal to prompt the operator to stop the machine and trigger an alarm. Because the electrode groups 400 are multiple and evenly distributed along the circumference, even if an impact occurs in any direction, it will cause the two electrode plates 410 in the corresponding electrode group 400 to break off, ensuring 360-degree omnidirectional anti-collision functionality.

[0037] In another implementation scenario, when the cutting torch impacts the obstacle longitudinally or diagonally, the contact rod 310 first contacts the obstacle and displaces, causing the oscillating disk 300 to rotate or shift. This, in turn, drives the isolation plate 320 connected to the oscillating disk 300 to move upward or tilt. During this movement, the through hole 321 inserts between the electrode plates 410, causing the electrode plates 410 to disengage, thus disconnecting the electrical signal and triggering the system's shutdown and alarm functions. After the impact ends, the connecting spring 211, under its elastic force, drives the isolation plate 320 to reset. Simultaneously, the isolation plate 320 can also naturally descend under its own gravity, returning to its initial state.

[0038] Furthermore, to ensure the reliability and insulation of the electrical signal triggering, the electrode 410 is made of a metallic conductive material and serves as the electrode contact for signal triggering; while the support foot 420 and the isolation plate 320 are both made of insulating material to avoid unwanted conduction and interference.

[0039] Furthermore, the electrode groups 400 and the isolation plates 320 are of the same number and correspond one-to-one, evenly distributed along the circumference of the cutting torch body 100, improving the overall response sensitivity and multi-directional monitoring coverage. Since the contact rods 310 are arranged radially at the bottom, they effectively enhance contact detection capabilities in both longitudinal and inclined directions.

[0040] In summary, this utility model uses the floating ring 220 and the contact rod 310 to sense collisions of the cutting torch in the lateral and longitudinal / oblique directions, and triggers an alarm signal by disconnecting the electrode plate 410 in the electrode assembly 400. Structurally, it combines the elasticity of the support foot 420 and the insertion and automatic reset mechanism of the isolation plate 320 to form a complete anti-collision detection, triggering and reset system. It has high sensitivity, high reliability and multi-directional protection capabilities, and is suitable for the field of cutting torch safety protection in plasma cutting operations.

[0041] Working principle and usage process of this utility model: 1. Lateral collision detection: When the cutter body 100 experiences a lateral collision during use: the floating ring 220, due to its larger outer diameter than the positioning ring 210, will preferentially contact the obstacle; after being subjected to force, the support foot 420 will undergo elastic deformation and bend; causing the two electrode plates 410 to separate from each other, thus generating an electrode disconnection signal; the electrical signal is processed by the circuit to trigger the cutter to stop and provide an alarm; since the 400 electrode groups are evenly distributed along the circumference, a 360° omnidirectional anti-collision warning function can be achieved, and any electrode group will trigger an alarm upon deformation.

[0042] 2. Longitudinal / Oblique Collision Detection: When the cutting torch experiences a longitudinal or oblique downward contact collision: the bottom contact rod 310 first contacts the foreign object and swings; this causes the isolation plate 320 to move upward in a straight line or obliquely upward; the through hole 321 of the isolation plate shifts and inserts between the two electrode plates 410; this causes the electrode plates to separate, triggering a disconnection signal, thus achieving automatic shutdown and alarm of the cutting torch; after the impact is resolved, the isolation plate 320 automatically returns to its original position under the action of the spring force of the connecting spring 211 and its own gravity.

[0043] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A shockproof plasma torch cutting torch, characterized in that, include: The cutting torch body (100), the collar assembly (200), and the swing disk (300) are provided. The collar assembly (200) includes a positioning ring (210) and a floating ring (220) respectively fixed to the upper and lower surfaces of the electrode assembly (400). The swing disk (300) is movably sleeved on the surface of the cutting torch body (100), and the upper and lower surfaces of the swing disk (300) are respectively provided with a plurality of isolation plates (320) and contact rods (310). The top of the isolation plate (320) is provided with a connecting spring (211) connected to the bottom surface of the positioning ring (210). The surface of the isolation plate (320) is provided with a through hole (321). The electrode assembly (400) includes two opposing electrode plates (410) that are in close contact with each other. The outer periphery of the electrode plate (410) is provided with a support foot (420) and is fixedly connected to the surface of the positioning ring (210) and the floating ring (220) through the support foot (420). The two electrode plates (410) are spherical arc convex surfaces and are in close contact with each other through a through hole (321). Electrodes are connected to the surface of the two electrode plates (410) to generate an impact signal when the electrode is disconnected, so as to trigger the shutdown and alarm signals.

2. The anti-collision plasma torch cutting gun according to claim 1, characterized in that, The floating ring (220) is fitted around the outer periphery of the cutting torch body (100) and does not contact the surface of the cutting torch body (100). The outer diameter of the floating ring (220) is larger than the outer diameter of the positioning ring (210) and is used to swing when in contact with foreign objects.

3. The anti-collision plasma torch cutting gun according to claim 1, characterized in that, The support foot (420) is an elastic deflection structure used to fix the electrode (410) between the positioning ring (210) and the floating ring (220), and to guide the two electrode (410) to disengage from the contact state during the deformation and bending of the support foot (420).

4. The anti-collision plasma torch cutting gun according to claim 1, characterized in that, The electrode (410) is a metal component, and the support (420) and the isolation plate (320) are both insulating components.

5. The anti-collision plasma torch cutting gun according to claim 1, characterized in that, The contact rods (310) on the bottom surface of the swing disk (300) are arranged in a radiating pattern. A gap is provided between the inner side of the swing disk (300) and the outer periphery of the cutting torch body (100) for the swing of the swing disk (300).

6. The anti-collision plasma torch cutting gun according to claim 1, characterized in that, The number of electrode groups (400) and isolation plates (320) is several, and they are arranged in a one-to-one correspondence. The electrode groups (400) and isolation plates (320) are evenly distributed in a circumferential direction along the outer periphery of the cutting torch body (100).

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