Positioning tool for machining nozzle of cutting gun

Abstract

The utility model discloses a positioning tool for machining a nozzle of a cutting gun, which belongs to the technical field of positioning tools and comprises a table top and three pressing plates, a threaded rod is rotatably mounted at the bottom of the table top and provided with a forward thread portion and a reverse thread portion, and the three pressing plates are mounted on the table top. The peripheral face of the forward thread part and the peripheral face of the reverse thread part are sleeved with a pressing sliding sleeve and a positioning sliding sleeve in a threaded mode respectively, three arc-shaped plates evenly distributed in the circumferential direction and three positioning plates evenly distributed in the circumferential direction are assembled on the top of the table top in a sliding mode respectively, directional blocks are welded to the bottoms of the positioning plates and the bottoms of the pressing plates, and six directional grooves are formed in the table top. And the six orientation blocks are slidably connected to the interiors of the corresponding orientation grooves correspondingly, three positioning movable rods which are evenly distributed in the circumferential direction and three pressing movable rods which are evenly distributed in the circumferential direction are movably hinged to the outer circumferential face of the positioning sliding sleeve and the outer circumferential face of the pressing sliding sleeve correspondingly, and the effects of being good in positioning effect and high in stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to a positioning tooling for processing cutting gun nozzles. Background Technology

[0002] Currently, the working principle of a plasma cutting gun is roughly as follows: high-pressure gas is introduced into the plasma arc, exciting the gas into plasma, which is then sprayed onto the object to be cut, thus achieving the cutting function; the nozzle is one of the core components of the plasma cutting gun. Chinese patent CN220144558U specifically discloses an alloy nozzle processing positioning fixture. The nozzle is positioned by the elastic force of a spring, facilitating subsequent processing and fixation. However, this patent uses spring elasticity for nozzle fixation, and the weak spring elasticity leads to unstable nozzle fixation, affecting processing accuracy and device reliability.

[0003] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0004] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a positioning fixture for cutting gun nozzle processing, which achieves good positioning effect and strong stability.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a positioning fixture for processing cutting gun nozzles, including a table and three clamping plates. A threaded rod is rotatably installed on the bottom of the table. The threaded rod is provided with a forward thread and a reverse thread. A clamping sleeve and a positioning sleeve are respectively threaded on the outer circumferential surface of the forward thread and the reverse thread.

[0006] The top of the platform is slidably fitted with three circumferentially distributed arc-shaped plates and three circumferentially distributed positioning plates. The bottom of the positioning plates and the pressing plates are welded with directional blocks. Six directional grooves are opened on the platform, and the six directional blocks are slidably connected to the interior of the corresponding directional grooves. The outer circumferential surfaces of the positioning sleeve and the pressing sleeve are respectively movably hinged with three circumferentially distributed positioning rods and three circumferentially distributed pressing rods. The other ends of the three positioning rods and the three pressing rods are respectively movably hinged to the corresponding directional blocks.

[0007] Furthermore, an adjusting screw is rotatably mounted on the arc-shaped plate, and a fixing rod is welded to the arc-shaped plate. The fixing rod has interconnected directional holes and several warning holes. A directional rod is welded to the clamping plate. The directional rod is slidably connected inside the directional hole. A circular groove is formed inside the directional rod. A warning block is slidably connected inside the circular groove. A return spring is fixedly connected to the bottom of the warning block and the inner wall of the circular groove.

[0008] Furthermore, a protective box is fixedly connected to the bottom of the platform by bolts, and an electrical box is fixedly connected to the bottom of the protective box by bolts. Both the electrical box and the protective box have protective doors installed on one side. Four support legs are fixedly connected inside the protective box, and both the protective box and the electrical box are provided with two ventilation holes.

[0009] Furthermore, a speed reducer and a servo motor are installed inside the electrical box.

[0010] Furthermore, the output end of the servo motor is fixedly connected to the input end of the reducer via a coupling, and the output end of the reducer is fixedly connected to the bottom end of the threaded rod via a coupling.

[0011] Furthermore, both the clamping sleeve and the positioning sleeve are provided with threaded grooves, and the forward threaded portion and the reverse threaded portion are respectively threaded into the interior of the corresponding threaded groove.

[0012] The beneficial effects of this application are: by moving the positioning plate and supporting it on the inner wall of the nozzle, it has multiple auxiliary points for support, which effectively prevents the nozzle from swaying or deforming during processing, and achieves more accurate and effective positioning. At the same time, the clamping plate can apply a stable clamping force on the outer surface of the nozzle, ensuring that the nozzle is more stable during processing. The rotation of the adjusting screw drives the movement of the clamping plate. This design allows the device to be adapted to nozzles of different sizes and models, enhancing its practicality. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the threaded rod of this utility model;

[0016] Figure 3 This is a schematic diagram of the clamping plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the fixing rod of this utility model.

[0018] In the diagram: 1. Tabletop; 2. Protective box; 3. Electrical box; 4. Protective door; 5. Threaded rod; 6. Pressing sleeve; 7. Positioning sleeve; 8. Pressing movable rod; 9. Positioning movable rod; 10. Positioning plate; 11. Arc plate; 12. Pressing plate; 13. Adjusting screw; 14. Fixing rod; 15. Orienting rod; 16. Warning block; 17. Return spring; 18. Support leg; 19. Orienting block; 20. Orienting groove; 21. Servo motor; 22. Reducer. Detailed Implementation

[0019] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] like Figure 1-4 As shown, this application provides a positioning fixture for processing cutting gun nozzles, including a table 1 and three clamping plates 12. A threaded rod 5 is rotatably mounted on the bottom of the table 1. The threaded rod 5 is provided with a forward thread and a reverse thread. A clamping sleeve 6 and a positioning sleeve 7 are respectively threaded on the outer circumferential surface of the forward thread and the reverse thread. Three circumferentially distributed arc-shaped plates 11 and three circumferentially distributed positioning plates 10 are slidably mounted on the top of the table 1. A directional block 19 is welded to the bottom of the positioning plate 10 and the clamping plate 12. Six directional grooves 20 are opened on the table 1. The six directional blocks 19 are slidably connected to the interior of the corresponding directional grooves 20. Three circumferentially distributed positioning movable rods 9 and three circumferentially distributed clamping movable rods 8 are movably hinged on the outer circumferential surface of the positioning sleeve 7 and the clamping sleeve 6. The other ends of the three positioning movable rods 9 and the three clamping movable rods 8 are movably hinged to the corresponding directional blocks 19.

[0021] like Figure 1-4 As shown, an adjusting screw 13 is threadedly mounted on the arc plate 11, and a fixing rod 14 is welded onto the arc plate 11. The fixing rod 14 has interconnected directional holes and several warning holes. A directional rod 15 is welded onto the clamping plate 12. The directional rod 15 is slidably connected inside the directional hole. A circular groove is opened inside the directional rod 15. A warning block 16 is slidably connected inside the circular groove. A return spring 17 is fixedly connected to the bottom of the warning block 16 and the inner wall of the circular groove.

[0022] like Figure 1 As shown, a protective box 2 is fixedly connected to the bottom of the tabletop 1 by bolts, and an electrical box 3 is fixedly connected to the bottom of the protective box 2 by bolts. A protective door 4 is installed on one side of both the electrical box 3 and the protective box 2. Four support legs 18 are fixedly connected inside the protective box 2. Two ventilation holes are provided on both the protective box 2 and the electrical box 3.

[0023] like Figure 1-2As shown, a speed reducer 22 is installed inside the electrical box 3, and a servo motor 21 is installed inside the electrical box 3.

[0024] like Figure 1-2 As shown, the output end of the servo motor 21 is fixedly connected to the input end of the reducer 22 via a coupling, and the output end of the reducer 22 is fixedly connected to the bottom end of the threaded rod 5 via a coupling.

[0025] like Figure 1-2 As shown, both the clamping sleeve 6 and the positioning sleeve 7 are provided with threaded grooves, and the forward threaded part and the reverse threaded part are respectively threaded into the interior of the corresponding threaded groove.

[0026] The working principle of this utility model is as follows: The nozzle is placed on the table 1 and three positioning plates 10 are fitted on it. The servo motor 21 is started by an external power supply. With the use of the reducer 22, the threaded rod 5 rotates slowly. Due to the threaded propulsion principle of the threaded rod 5 and the threaded groove, the positioning sleeve 7 and the clamping sleeve 6 move. The positioning sleeve 7 and the clamping sleeve 6 of the reverse thread and the forward thread move in opposite directions, thereby driving the positioning movable rod 9 and the clamping movable rod 8 to move. With the use of the directional block 19 and the directional groove 20, the three positioning plates 10 move outward along the direction of the directional groove 20 and support the inner wall of the nozzle, positioning it in the center position. The three arc plates 11 drive the clamping plate 12 to move inward along the direction of the directional groove 20 and press it on the outer wall of the nozzle, making it more stable and ensuring more effective processing of the nozzle in the future.

[0027] Furthermore, when positioning larger nozzles, the positioning plate 10 has a longer stroke. The adjustable screw 13 can be rotated to move the three clamping plates 12 outward, changing the position of the clamping plates 12 and effectively pressing them against the outer wall of the nozzle. Conversely, the clamping plates 12 move inward, which is suitable for smaller nozzles. When the adjustable screw 13 rotates, the clamping plates 12 move horizontally through the setting of the directional rod 15 and the directional hole. At the same time, the semi-circle set on the top of the warning block 16 is squeezed and moves into the circular groove. The return spring 17 resets the warning block 16 and moves it into the warning hole for easy observation by the staff. This ensures that the three clamping plates 12 move the same distance, ensuring more effective clamping and fixing of the nozzle.

[0028] In addition, the protective box 2 and the electrical box 3 protect each component, reducer and servo motor 21 respectively. The protective door 4 facilitates subsequent maintenance work by the staff. The ventilation holes enable ventilation and heat dissipation for the protective box 2 and the electrical box 3.

[0029] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for machining cutting gun nozzles, characterized in that, It includes a table (1) and three clamping plates (12). A threaded rod (5) is rotatably installed on the bottom of the table (1). The threaded rod (5) is provided with a forward thread and a reverse thread. A clamping sleeve (6) and a positioning sleeve (7) are respectively threaded on the outer circumferential surface of the forward thread and the reverse thread. The top of the platform (1) is slidably fitted with three circumferentially distributed arc-shaped plates (11) and three circumferentially distributed positioning plates (10). The bottom of the positioning plates (10) and the pressing plates (12) are welded with directional blocks (19). The platform (1) is provided with six directional grooves (20). The six directional blocks (19) are slidably connected to the inside of the corresponding directional grooves (20). The outer circumferential surfaces of the positioning sleeve (7) and the pressing sleeve (6) are respectively movably hinged with three circumferentially distributed positioning rods (9) and three circumferentially distributed pressing rods (8). The other ends of the three positioning rods (9) and the three pressing rods (8) are respectively movably hinged to the corresponding directional blocks (19).

2. The positioning fixture for machining cutting gun nozzles according to claim 1, characterized in that: An adjusting screw (13) is rotatably mounted on the arc plate (11). A fixing rod (14) is welded on the arc plate (11). The fixing rod (14) is provided with a directional hole and a number of warning holes. A directional rod (15) is welded on the pressing plate (12). The directional rod (15) is slidably connected inside the directional hole. A circular groove is provided inside the directional rod (15). A warning block (16) is slidably connected inside the circular groove. A return spring (17) is fixedly connected to the bottom of the warning block (16) and the inner wall of the circular groove.

3. The positioning fixture for machining cutting gun nozzles according to claim 1, characterized in that: The bottom of the tabletop (1) is fixedly connected to a protective box (2) by bolts. The bottom of the protective box (2) is fixedly connected to an electrical box (3) by bolts. Both the electrical box (3) and the protective box (2) have protective doors (4) installed on one side. The protective box (2) has four support legs (18) fixedly connected inside. Both the protective box (2) and the electrical box (3) have two ventilation holes.

4. The positioning fixture for machining cutting gun nozzles according to claim 3, characterized in that: The electrical box (3) is equipped with a speed reducer (22) and a servo motor (21).

5. The positioning fixture for machining cutting gun nozzles according to claim 4, characterized in that: The output end of the servo motor (21) is fixedly connected to the input end of the reducer (22) via a coupling, and the output end of the reducer (22) is fixedly connected to the bottom end of the threaded rod (5) via a coupling.

6. The positioning fixture for machining cutting gun nozzles according to claim 1, characterized in that: Both the clamping sleeve (6) and the positioning sleeve (7) are provided with threaded grooves, and the forward threaded part and the reverse threaded part are respectively threaded into the corresponding threaded groove.

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