Cutting mechanism of plasma cutting machine

Abstract

The utility model relates to the field of cutting machines, and discloses a cutting mechanism of a plasma cutting machine, which comprises a workbench, a numerical control guide rail is arranged on the upper surface of the workbench, a cutting machine main body is movably mounted on the outer surface of the numerical control guide rail, a cutting head is mounted in the middle of the bottom end of the cutting machine main body, and a fixed baffle is fixedly mounted on one side of the outer surface of the cutting head. Guide sliding grooves are symmetrically formed in the two side portions of the fixed baffle in a penetrating mode, sliding blocks are movably installed in the guide sliding grooves, the bottom ends of the sliding blocks penetrate through the guide sliding grooves to be welded with protection plates, movable connecting plates are hinged to the middles of the top ends of the sliding blocks through damping bearings, and gears are fixedly connected to the side portions of one sides of the bottom ends of the movable connecting plates; according to the cutting head, the protection plate is convenient to synchronously and movably adjust along with spark sputtering, so that the effect of conveniently protecting and shielding sparks generated during use of the cutting head is achieved, the safety of the cutting head during use is improved, and the problem that the sparks generated during use of the cutting head cause harm to surrounding operators is solved.

Description

Technical Field

[0001] The present application relates to the field of cutting machines, and in particular to a cutting mechanism of a plasma cutting machine. Background Art

[0002] Plasma cutting machine is a kind of equipment that uses plasma technology to cut metal. Plasma cutting machine uses arc discharge to excite gas (usually oxygen, nitrogen, argon, etc.) into plasma. The heat energy generated by high-temperature plasma can locally heat the metal material to the melting point to form a molten pool. At the same time, high-pressure gas (usually oxygen) is ejected from the cutting nozzle to blow the metal in the molten pool away from the workpiece surface, thus achieving the cutting and processing of metal materials.

[0003] When a plasma cutting machine cuts metal materials, some unmelted metal particles or other impurities exist in the cutting area. The electric arc may heat them, ignite them and generate sparks. The sparks generated during cutting will scatter along the cutting area, and the sputtering direction of the sparks mostly moves along the cutting path. The scattered sparks may cause damage to operators in the surrounding environment, so that there are certain safety hazards when using the plasma cutting machine.

[0004] In view of the above-mentioned related technologies, the inventor believes that there is a defect that sparks scatter along the cutting path when the plasma cutting machine is used. Therefore, a cutting mechanism of a plasma cutting machine is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem that sparks generated by an ion cutting machine scatter along a cutting path when the ion cutting machine is in use, the present application provides a cutting mechanism of a ion cutting machine.

[0006] The cutting mechanism of a plasma cutting machine provided in this application adopts the following technical solution:

[0007] A cutting mechanism of a plasma cutting machine comprises a workbench, the upper surface of the workbench is provided with a CNC guide rail, a cutting machine body is movably installed on the outer surface of the CNC guide rail, a cutting head is installed in the middle of the bottom end of the cutting machine body, a fixed baffle is fixedly installed on one side of the outer surface of the cutting head, both side edges of the fixed baffle are symmetrically penetrated with guide grooves, a sliding block is movably installed inside the guide groove, a protective plate is welded to the outside of the guide groove through the bottom end of the sliding block, a movable connecting plate is hingedly connected to the middle part of the top end of the sliding block through a damping bearing, a gear is fixedly connected to one side edge of the bottom end of the movable connecting plate, the gear is rotatably installed on the upper surface of the fixed baffle, and a sliding mechanism is also provided on the upper surface of the fixed baffle for controlling the rotation of multiple gears.

[0008] Preferably, the sliding mechanism includes a double-sided rack plate, which is symmetrically and movably installed between two gears on the same side above the fixed baffle, a mounting seat is fixedly connected to the middle of the top of the double-sided rack plate, a rotating support rod is hinged inside the mounting seat, a cylinder is installed on the outer surface of the cutting head above the fixed baffle, an outer sleeve is installed at the bottom end of the cylinder, fixed grooves are opened on both side edges of the outer sleeve, and the top of one side of the rotating support rod is hinged inside the fixed groove.

[0009] Preferably, both front and rear end edges of the double-sided rack plate are movable close to the outer surface of the gear, and the gear and the double-sided rack plate are meshed with each other.

[0010] Preferably, guide ridges are symmetrically welded on both sides of the upper surface of the fixed baffle plate, grooves are symmetrically opened on the bottom edge of the double-sided rack plate, the top of the guide ridge is located inside the groove, and the guide ridge and the groove are coupled to each other.

[0011] Preferably, a circular hole is formed through the middle of the top end of the outer sleeve, the outer diameter of the cutting head is smaller than the inner diameter of the circular hole, the outer sleeve is movably sleeved on the outer surface of the cutting head, and the cutting head and the circular hole are interlocked.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The workpiece placed on the upper surface of the workbench is cut by the cutting head, and the outer sliding sleeve slides up and down along the outer surface of the cutting head, thereby pushing the rotating support rod to rotate and driving the double-sided rack plate to slide along the outer surface of the guide convex strip, so that the double-sided rack plate drives the gear to rotate, and then multiple protective plates are rotated along the outer surface of the cutting head to adjust their positions; compared with the prior art, this solution has the effect of facilitating the protection and shielding of sparks generated when the cutting head is used, thereby improving the safety of the cutting head when in use and solving the problem of sparks generated when the cutting head is in use causing harm to surrounding operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 is an enlarged structural schematic diagram of the cutting machine body in the embodiment of the application;

[0016] Figure 3 It is a schematic diagram of the structure of the protective plate in the application embodiment;

[0017] Figure 4 It is an application embodiment Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part;

[0018] Explanation of the accompanying drawings: 1. Workbench; 2. CNC guide rail; 3. Cutting machine body; 4. Cutting head; 5. Fixed baffle; 6. Guide slide groove; 7. Sliding block; 8. Protective plate; 9. Movable connecting plate; 10. Gear; 11. Double-sided rack plate; 12. Mounting seat; 13. Rotating support rod; 14. Cylinder; 15. Outer sleeve; 16. Fixed groove; 17. Guide convex strip. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a cutting mechanism of a plasma cutting machine. Figure 1-4 A cutting mechanism of a plasma cutting machine comprises a workbench 1, a numerical control guide rail 2 is arranged on the upper surface of the workbench 1, a cutting machine body 3 is movably installed on the outer surface of the numerical control guide rail 2, a cutting head 4 is installed in the middle of the bottom end of the cutting machine body 3, a fixed baffle 5 is fixedly installed on one side of the outer surface of the cutting head 4, guide grooves 6 are symmetrically penetrated on both sides of the fixed baffle 5, a sliding block 7 is movably installed inside the guide groove 6, a protective plate 8 is welded to the outside of the sliding block 7 through the guide groove 6, a movable connecting plate 9 is hinged to the middle part of the top of the sliding block 7 through a damping bearing, a gear 10 is fixedly connected to one side edge of the bottom end of the movable connecting plate 9, the gear 10 is rotatably installed on the upper surface of the fixed baffle 5, and a sliding mechanism is also provided on the upper surface of the fixed baffle 5 for controlling the rotation of multiple gears 10.

[0021] By placing the workpiece on the upper surface of the workbench 1, the CNC guide rail 2 is movable and adjusted along the upper surface of the workbench 1, and the cutting machine body 3 is movable along the outer surface of the CNC guide rail 2, so that the cutting head 4 can perform movable cutting on the workpiece placed on the upper surface of the workbench 1, and the single double-sided rack plate 11 drives the two gears 10 on the same side to rotate relative to each other, and the movable connecting plate 9 drives the sliding block 7 to move along the inside of the guide groove 6, so that multiple protective plates 8 can be rotated and adjusted along the outer surface of the cutting head 4 with the sliding block 7. Different spark sputtering directions are generated along the different cutting paths of the cutting head 4, and the placement positions of multiple protective plates 8 are synchronously adjusted, which reflects the overall position adjustment effect of the protective plates 8.

[0022] Reference Figure 2 and Figure 4The sliding mechanism includes a double-sided rack plate 11, which is symmetrically and movably installed between the two gears 10 on the same side above the fixed baffle 5. The front and rear ends of the double-sided rack plate 11 are both movable close to the outer surface of the gear 10. The gear 10 and the double-sided rack plate 11 are meshed with each other. A mounting seat 12 is fixedly connected to the middle of the top of the double-sided rack plate 11. A rotating support rod 13 is hinged inside the mounting seat 12. A cylinder 14 is installed on the outer surface of the cutting head 4 above the fixed baffle 5. An outer sleeve 15 is installed at the bottom end of the cylinder 14. A circular hole is opened in the middle of the top of the outer sleeve 15. The outer diameter of the cutting head 4 is smaller than the inner diameter of the circular hole. The outer sleeve 15 is movably sleeved on the outer surface of the cutting head 4. The cutting head 4 and the circular hole are embedded with each other. Fixed grooves 16 are opened on the edges on both sides of the outer sleeve 15, and the top of one side of the rotating support rod 13 is hinged inside the fixed groove 16.

[0023] By starting the cylinder 14, the outer sleeve 15 is driven to slide up and down along the outer surface of the cutting head 4, so that the outer sleeve 15 can move to push the rotating support rod 13 to rotate, and at the same time, the rotating support rod 13 can rotate along the inside of the mounting seat 12, and the rotating rotating support rod 13 can drive the double-sided rack plate 11 to move, which reflects the activity adjustment effect of the outer sleeve 15 on the double-sided rack plate 11.

[0024] Reference Figure 4 Guide ridges 17 are symmetrically welded on both sides of the upper surface of the fixed baffle 5, and grooves are symmetrically opened on the bottom edge of the double-sided rack plate 11. The top of the guide ridge 17 is located inside the groove. The guide ridge 17 and the groove are coupled with each other. The guide ridge 17 guides and supports the moving double-sided rack plate 11, thereby keeping the double-sided rack plate 11 in a stable state when it is active, which reflects the overall stability of the double-sided rack plate 11 when it moves.

[0025] The implementation principle of the cutting mechanism of a plasma cutting machine in the embodiment of the present application is as follows: by placing a workpiece on the upper surface of a workbench 1, the CNC guide rail 2 is moved along the upper surface of the workbench 1 to adjust its position, and at the same time, the cutting machine body 3 is moved along the outer surface of the CNC guide rail 2, so that the cutting head 4 can move and cut the workpiece placed on the upper surface of the workbench 1, and the cylinder 14 is started to drive the outer sleeve 15 to slide up and down along the outer surface of the cutting head 4, and the input end of the power supply of the cylinder 14 is electrically connected to the output end of the external power supply, so that the outer sleeve 15 can move and push the rotating support rod 13 to rotate, and the rotating supporting rod 13 in rotation drives the double-sided rack plate 11 to move, so that the guide convex strips 17 guide the moving double-sided rack plate 11 To support, thereby keeping the double-sided rack plate 11 in a stable state when it is active, so that the single double-sided rack plate 11 drives the two gears 10 on the same side to rotate relative to each other, and the movable connecting plate 9 drives the sliding block 7 to move along the inside of the guide slide groove 6, so that the multiple protective plates 8 are rotated and adjusted along the outer surface of the cutting head 4 with the movement of the sliding block 7, and the placement positions of the multiple protective plates 8 are adjusted synchronously with the different cutting paths of the cutting head 4 to generate different spark sputtering directions; compared with the prior art, this solution has the effect of facilitating the protection and shielding of the sparks generated when the cutting head 4 is in use, thereby improving the safety of the cutting head 4 when in use, and solving the problem that the sparks generated when the cutting head 4 is in use cause harm to the surrounding operators.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cutting mechanism of a plasma cutting machine, comprising a workbench (1), wherein the upper surface of the workbench (1) is provided with a numerical control guide rail (2), a cutting machine body (3) is movably mounted on the outer surface of the numerical control guide rail (2), and a cutting head (4) is mounted at the middle of the bottom end of the cutting machine body (3), Features: A fixed baffle (5) is fixedly installed on one side of the outer surface of the cutting head (4), and guide grooves (6) are symmetrically opened on both side edges of the fixed baffle (5). A sliding block (7) is movably installed inside the guide groove (6), and a protective plate (8) is welded to the outside of the guide groove (6) at the bottom end of the sliding block (7). A movable connecting plate (9) is hingedly connected to the middle part of the top end of the sliding block (7) through a damping bearing, and a gear (10) is fixedly connected to one side edge of the bottom end of the movable connecting plate (9). The gear (10) is rotatably installed on the upper surface of the fixed baffle (5), and a sliding mechanism is also provided on the upper surface of the fixed baffle (5) for controlling the rotation of multiple gears (10).

2. The cutting mechanism of a plasma cutting machine according to claim 1, Features: The sliding mechanism comprises a double-sided rack plate (11), the double-sided rack plate (11) is symmetrically mounted between two gears (10) on the same side above the fixed baffle (5), a mounting seat (12) is fixedly connected to the middle of the top of the double-sided rack plate (11), a rotating support rod (13) is hinged inside the mounting seat (12), a cylinder (14) is mounted on the outer surface of the cutting head (4) above the fixed baffle (5), an outer sleeve (15) is mounted at the bottom end of the cylinder (14), both sides of the outer sleeve (15) are provided with fixed grooves (16), and the top of one side of the rotating support rod (13) is hinged inside the fixed groove (16).

3. The cutting mechanism of a plasma cutting machine according to claim 2, Features: The front and rear end edges of the double-sided rack plate (11) are both movable and close to the outer surface of the gear (10), and the gear (10) and the double-sided rack plate (11) are meshed with each other.

4. The cutting mechanism of a plasma cutting machine according to claim 2, Features: Guide ridges (17) are symmetrically welded on both sides of the upper surface of the fixed baffle (5), and grooves are symmetrically opened on the bottom edge of the double-sided rack plate (11), and the top of the guide ridge (17) is located inside the groove, and the guide ridge (17) and the groove are coupled to each other.

5. The cutting mechanism of a plasma cutting machine according to claim 2, Features: A circular hole is formed through the middle of the top of the outer sleeve (15); the outer diameter of the cutting head (4) is smaller than the inner diameter of the circular hole; the outer sleeve (15) is movably sleeved on the outer surface of the cutting head (4); and the cutting head (4) and the circular hole are interlocked.

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