A teaching tool for plasma beveling machine

Abstract

The utility model relates to the field of plasma cutting equipment, especially a kind of demonstration tool for plasma bevel cutting machine, including the round tubular probe cap for being installed on plasma gun head, probe cap is fixedly installed with probe cap, probe cap is installed with probe, probe cap is conical shell shape;Notch is set up on probe cap;Fixed cap is set up on probe cap by screw thread;Probe is installed on fixed cap. The conical shell shape probe cap adapts the inclination angle of probe when bevel operation, and the notch on probe cap forms effective avoiding structure, solves the problem that traditional tooling has no avoiding design to influence inclination angle and cannot complete bevel demonstration;Meanwhile, the threaded cooperation of probe cap and fixed cap can flexibly adjust probe position to adapt different plate thickness / bevel depth, and the round tubular probe cap can stably connect plasma gun head, improves bevel cutting precision and on-site programming efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plasma cutting equipment, and in particular to a teaching fixture for a plasma beveling machine. Background Technology

[0002] In fields such as engineering machinery and shipbuilding, plasma robotic cutting machines have become the core equipment for beveling steel plates due to their high cutting efficiency and small heat-affected zone. During operation, horizontal movement is controlled by programming software, and the distance between the cutting torch and the workpiece is adjusted by an arc pressure sensor. The key to on-site programming lies in the teaching of the tool coordinate reference point—the accuracy of the reference point directly determines the beveling quality. Therefore, special tooling is required to help capture the reference point and adapt to the collaborative operation system of arc pressure height control and horizontal movement. There are currently two types of teaching solutions in the industry: one is laser lamp assistance, which involves installing a laser emitter next to the cutting torch to project laser points to mark reference points, but this is only applicable to the vertical cutting path of the cutting torch; the other is traditional mechanical tooling, which is mostly flat or cylindrical, with the probe fixed by welding / interference fit and without any avoidance structure, affecting the probe tilt angle during beveling operations. Existing technologies have two major problems: First, traditional tooling lacks a clearance design, affecting the probe tilt angle and making it impossible to teach beveling operations; second, traditional probes are fixed and cannot be adjusted, making it difficult to adapt to different plate thicknesses / beveling depths, and the connection between the tooling and the gun head is unstable. These problems directly restrict the beveling cutting accuracy and on-site programming efficiency. Utility Model Content

[0003] To address the problem that current designs lack obstacle avoidance, which affects the probe tilt angle and prevents the completion of beveling operations, this utility model provides a teaching fixture for a plasma beveling machine.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A teaching fixture for a plasma beveling machine includes a cylindrical probe cap for mounting on the plasma gun head. A probe cap is fixedly mounted on the probe cap, and a probe is mounted on the probe cap. The probe cap is conical in shape. A notch is formed on the probe cap. A fixing cap is threaded onto the probe cap. The probe is mounted on the fixing cap. The conical probe cap adapts to the tilt angle of the probe during beveling operations, and the notch on the probe cap forms an effective clearance structure, solving the problem of traditional fixtures lacking clearance design, which affects the tilt angle and cannot complete beveling teaching. Simultaneously, the threaded engagement between the probe cap and the fixing cap allows for flexible adjustment of the probe position to accommodate different plate thicknesses and beveling depths. The cylindrical probe cap provides a stable connection to the plasma gun head, improving beveling cutting accuracy and on-site programming efficiency. Preferably, the large-diameter end of the probe cap is fixed to the probe cap; a ring is fixedly provided at the small-diameter end of the probe cap; and the fixing cap is threaded onto the ring. Fixing the large-diameter end of the probe cap to the probe cap increases the contact area, thus enhancing the connection stability. The ring at the small-diameter end of the probe cap provides a threaded mounting carrier for the fixing cap, allowing it to be stably screwed onto the ring. The position of the fixing cap and the mounted probe can be adjusted via the thread, easily adapting to teaching requirements of different plate thicknesses and bevel depths, improving the teaching accuracy and adaptability of bevel cutting.

[0005] Preferably, the fixing cap has a through hole in the middle; the probe is installed in the through hole. The through hole in the middle of the fixing cap provides an installation reference for the probe, ensuring that the probe is installed neatly and the axis is stable, avoiding the offset and skew problems that are easy to occur in traditional probe installation, and ensuring the positioning accuracy of the tool coordinate reference point; at the same time, the through hole structure allows the probe to be stably embedded and, together with the thread adjustment function of the fixing cap, smoothly realizes the flexible adjustment of the probe extension length, better adapts to the teaching needs of different plate thicknesses and bevel depths, and further improves the adaptability of the tooling to working conditions and the teaching accuracy.

[0006] Preferably, the probe and the through hole are interference-fitted. The interference fit ensures a secure connection between the probe and the fixing cap, preventing the probe from loosening or shifting during teaching, ensuring accurate positioning of the tool coordinate reference point, and guaranteeing the teaching accuracy of bevel cutting.

[0007] Preferably, the inner wall of the through hole is provided with an internal thread; the outer wall of the probe is provided with an external thread; and the probe thread is located inside the through hole. The threaded engagement between the inner wall of the through hole of the fixing cap and the outer wall of the probe allows for flexible adjustment of the probe's extension length within the through hole, easily adapting to teaching conditions with different plate thicknesses and bevel depths. Simultaneously, the threaded connection ensures stable probe installation, preventing probe loosening or displacement during teaching, guaranteeing accurate positioning of the tool's coordinate reference point, effectively solving the problems of poor adaptability and easy positioning deviation of traditional fixed probes, and improving the teaching quality of bevel cutting.

[0008] Preferably, the probe cap has several elongated grooves evenly distributed along its circumference on its outer wall. These grooves extend upwards from the bottom of the probe cap, and their length is less than the height of the probe cap. The probe cap and the plasma gun head are fitted with an interference fit. The evenly distributed elongated grooves on the outer wall of the probe cap, combined with the interference fit between the probe cap and the plasma gun head, allow for easy installation and removal of the probe cap and adaptation to different sized gun heads through the elastic deformation space of the grooves, avoiding installation difficulties caused by the interference fit. Furthermore, because the length of the grooves is less than the height of the probe cap, the structural strength of the upper part of the probe cap is preserved, ensuring a stable and secure connection with the gun head, providing a stable tooling foundation for teaching operations.

[0009] Preferably, an illumination mechanism is installed on the outer wall of the probe cap. Installing an illumination mechanism on the outer wall of the probe cap provides sufficient and directional lighting directly to the teaching area, solving the problem of insufficient on-site lighting making it difficult for programmers to clearly observe the contact reference point between the probe and the workpiece. This eliminates the need for additional lighting equipment, simplifies the operation process, and ensures the accuracy of the tool coordinate reference point positioning, further improving the precision and efficiency of bevel cutting teaching.

[0010] Preferably, the lighting mechanism includes a rectangular housing; the housing is fixedly mounted on the side wall of the probe cap and positioned between two adjacent elongated slots; a bulb is fixedly mounted on the side of the housing facing the probe; the bulb is electrically connected to a switch; the switch is electrically connected to a battery; the switch is mounted on the side wall of the housing; and the battery is installed inside the housing. In this lighting mechanism, the rectangular housing is fixed between adjacent elongated slots of the probe cap, which fully utilizes space to ensure stable installation without affecting the elastic adaptation function of the elongated slots of the probe cap; the bulb is positioned facing the probe, accurately illuminating the contact reference point between the probe and the workpiece, solving the problem of unclear field of view during on-site teaching; the switch is mounted on the side wall of the housing for quick operation; and the battery is integrated into the housing, eliminating the need for additional lighting equipment and significantly improving the convenience and efficiency of bevel cutting teaching.

[0011] Preferably, a charging board is also installed inside the housing; the USB charging port of the charging board is installed on the side wall of the housing; the charging board is electrically connected to the battery. The charging board installed inside the housing is electrically connected to the battery, which can repeatedly charge the battery, avoiding the situation where the lighting mechanism cannot be used after the battery is depleted, and effectively extending the service life of the lighting mechanism; at the same time, the USB charging port of the charging board is located on the side wall of the housing, which can be used to complete the charging operation on site without disassembling the housing, adapting to the operation requirements of plasma beveling cutting on-site programming teaching, ensuring continuous and stable lighting, providing reliable light support for the observation of teaching reference points, and further improving the efficiency of on-site teaching.

[0012] Preferably, the housing height is less than the probe cap height; the housing is positioned on the side of the probe cap away from the notch. This prevents interference between the lighting mechanism and the workpiece or cutting torch components, ensuring smooth teaching operations.

[0013] As can be seen from the above technical solutions, the advantages of this utility model include: 1. The conical shell-shaped probe cap adapts to the tilt angle of the probe during beveling operations, and the notch on the probe cap forms an effective avoidance structure, solving the problem that the traditional tooling's lack of avoidance design affects the tilt angle and makes it impossible to complete beveling teaching; at the same time, the threaded fit between the probe cap and the fixing cap allows for flexible adjustment of the probe position to adapt to different plate thicknesses / beveling depths, and the cylindrical probe cap can stably connect to the plasma gun head, improving the beveling cutting accuracy and on-site programming efficiency.

[0014] 2. Installing a lighting mechanism on the outer wall of the probe cap can directly provide sufficient and directional lighting to the teaching area, solving the problem that insufficient on-site lighting makes it difficult for programmers to clearly observe the contact reference point between the probe and the workpiece. There is no need to carry or arrange additional lighting equipment, simplifying the operation process. At the same time, it ensures the accuracy of the tool coordinate reference point positioning, further improving the accuracy and efficiency of bevel cutting teaching. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after removing the fixing cap and probe. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the structure of this utility model after removing the fixing cap and probe. Figure 2 .

[0019] Explanation of reference numerals in the attached diagram: 1-Probe cap, 2-Probe cap, 3-Probe, 4-Fixing cap, 5-Housing, 6-Light bulb, 7-Switch, 8-USB charging port; 101-Long groove; 201-Notch, 202-Ring; 401-Through hole. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] like Figure 1-3 As shown, a teaching fixture for a plasma beveling machine includes a cylindrical probe cap 1 for mounting on the plasma gun head, a probe cap 2 fixedly mounted on the probe cap 1, a probe 3 mounted on the probe cap 2, and the probe cap 2 being conical in shape; a notch 201 is provided on the probe cap 2; a fixing cap 4 is threaded onto the probe cap 2; and the probe 3 is mounted on the fixing cap 4.

[0022] The conical shell-shaped probe cap 2 adapts to the tilt angle of the probe during beveling operations, and the notch 201 on the probe cap 2 forms an effective avoidance structure, which solves the problem that the traditional tooling without avoidance design affects the tilt angle and makes it impossible to complete beveling teaching; at the same time, the threaded engagement between the probe cap 2 and the fixing cap 4 allows for flexible adjustment of the probe 3 position to adapt to different plate thicknesses / beveling depths, and the cylindrical probe cap 1 can stably connect to the plasma gun head, improving the beveling cutting accuracy and on-site programming efficiency.

[0023] In the above configuration, the large-diameter end of the probe cap 2 is fixed to the probe cap 1; a ring 202 is fixedly mounted on the small-diameter end of the probe cap 2; and a fixing cap 4 is threaded onto the ring 202. A through hole 401 is provided in the middle of the fixing cap 4; the probe 3 is installed in the through hole 401. The probe 3 and the through hole 401 are interference-fitted. Several elongated grooves 101 are evenly provided along the circumferential direction on the outer wall of the probe cap 1; the elongated grooves 101 extend upward from the bottom surface of the probe cap 1, and the length of the elongated grooves 101 is less than the height of the probe cap 1; the probe cap 1 and the plasma gun head are interference-fitted. The large-diameter end of the probe cap 2 is fixed to the probe cap 1, increasing the contact area and enhancing the stability of their connection. The ring 202 at the small-diameter end of the probe cap 2 provides a threaded mounting carrier for the fixing cap 4, allowing the fixing cap 4 to be stably screwed onto the ring 202. The position of the fixing cap 4 and the mounted probe 3 can be adjusted by thread adjustment, easily adapting to teaching requirements of different plate thicknesses and bevel depths, improving the teaching accuracy and adaptability of bevel cutting. The through hole 401 in the middle of the fixing cap 4 provides an installation reference for the probe 3, ensuring that the probe 3 is installed neatly and its axis is stable, avoiding the offset and skew problems that are prone to occur in traditional probe 3 installation, and ensuring the positioning accuracy of the tool coordinate reference point. At the same time, the through hole 401 structure allows the probe 3 to be stably embedded and, in conjunction with the thread adjustment function of the fixing cap 4, smoothly realizes the flexible adjustment of the probe 3's extension length, better adapting to teaching requirements of different plate thicknesses and bevel depths, further improving the tooling's adaptability and teaching accuracy. The probe 3 and the through hole 401 are fitted with an interference fit, which ensures a firm connection between the probe 3 and the fixing cap 4, preventing the probe 3 from loosening or shifting during the teaching process, ensuring accurate positioning of the tool coordinate reference point, and guaranteeing the teaching accuracy of bevel cutting. The elongated grooves 101 evenly distributed around the outer circumference of the probe cap 1, together with the interference fit between the probe cap 1 and the plasma gun head, allow the probe cap 1 to be easily installed and removed and adapted to gun heads of different sizes through the elastic deformation space of the elongated grooves 101, avoiding the installation difficulties caused by the interference fit; at the same time, because the length of the elongated grooves 101 is less than the height of the probe cap 1, the strength of the upper structure of the probe cap 1 is preserved, ensuring a firm and secure connection with the gun head, providing a stable tooling foundation for the teaching operation.

[0024] In other alternative embodiments, the inner wall of the through hole 401 is provided with an internal thread; the outer wall of the probe 3 is provided with an external thread; the probe 3 is threaded inside the through hole 401. The threaded engagement between the inner wall of the through hole 401 and the outer wall of the probe 3 of the fixing cap 4 allows for flexible adjustment of the extension length of the probe 3 within the through hole 401, easily adapting to teaching conditions with different plate thicknesses and bevel depths. Simultaneously, the threaded connection ensures the probe 3 is securely installed, preventing it from loosening or shifting during teaching, ensuring accurate positioning of the tool coordinate reference point, effectively solving the problems of poor adaptability and easy positioning deviation of traditional fixed probes 3, and improving the teaching quality of bevel cutting.

[0025] To address the issue of insufficient lighting making it difficult for programmers to clearly observe the contact reference point between probe 3 and the workpiece, an illumination mechanism is installed on the outer wall of probe cap 1. This illumination mechanism directly provides ample, directional lighting to the teaching area, eliminating the need for additional lighting equipment, simplifying the operation process, and ensuring the accuracy of tool coordinate reference point positioning, further improving the precision and efficiency of bevel cutting teaching.

[0026] The lighting mechanism includes a rectangular housing 5; housing 5 is fixedly mounted on the side wall of probe cap 1 and positioned between two adjacent elongated slots 101; a bulb 6 is fixedly mounted on the side of housing 5 facing probe 3; bulb 6 is electrically connected to switch 7; switch 7 is electrically connected to battery; switch 7 is mounted on the side wall of housing 5; battery is installed inside housing 5. A charging board is also installed inside housing 5; USB charging port 8 of the charging board is mounted on the side wall of housing 5; charging board is electrically connected to battery. The height of housing 5 is less than the height of probe cap 1; housing 5 is positioned on the side of probe cap 1 away from notch 201, which avoids interference between the lighting mechanism and workpiece or cutting torch components, ensuring smooth teaching operation. In the lighting mechanism, the rectangular housing 5 is fixed between the adjacent elongated slots 101 of the probe cap 1, making full use of space to ensure stable installation without affecting the flexible adaptation function of the elongated slots 101 of the probe cap 1. The bulb 6 is set towards the probe 3, which can accurately illuminate the contact reference point between the probe 3 and the workpiece, solving the problem of unclear field of view in on-site teaching. The switch 7 is installed on the side wall of the housing 5 for quick operation. The battery is built into the housing 5 for integrated design, eliminating the need to carry additional lighting equipment and greatly improving the convenience and efficiency of bevel cutting teaching. The charging board installed in the housing 5 is electrically connected to the battery, which can repeatedly charge the battery and avoid the situation where the lighting mechanism cannot be used after the battery is depleted, effectively extending the service life of the lighting mechanism. At the same time, the USB charging port 8 of the charging board is located on the side wall of the housing 5, which can be conveniently charged on-site without disassembling the housing 5, adapting to the operation requirements of plasma bevel cutting on-site programming teaching, ensuring continuous and stable lighting, providing reliable light support for observation of the teaching reference point, and further improving on-site teaching efficiency.

[0027] The working principle of this teaching tool: First, the cylindrical probe cap 1 is fitted onto the plasma gun head with an interference fit. The evenly distributed elongated grooves 101 on its outer circumference can adapt to the gun head size through elastic deformation, ensuring a stable connection between the tooling and the gun head that is not easily loosened. Second, based on the workpiece thickness and bevel depth requirements, the position of the fixing cap 4 is adjusted by the threaded engagement between the small-diameter end ring 202 of the probe cap 2 and the fixing cap 4. Then, relying on the connection (interference fit or threaded fit) between the probe 3 and the through hole 401 in the middle of the fixing cap 4, the precise adaptation of the probe 3's extension length is achieved, meeting the positioning requirements of the tool coordinate reference point under different working conditions. Subsequently... During bevel cutting demonstration operations, the conical probe cap 2 can be synchronously adapted to the angle of the cutting torch to avoid obstructing the non-perpendicular cutting path. At the same time, the notch 201 on the probe cap 2 further provides clearance space and increases the tilt angle of the probe 3. Finally, when the on-site lighting is insufficient, the operator can turn on the switch 7 on the side wall of the housing 5 to power the bulb 6 facing the probe 3 with the battery inside the housing 5, focusing the light on the contact reference point between the probe 3 and the workpiece, ensuring clear and efficient teaching operations. The charging board inside the housing 5 can charge the battery through the USB charging port 8 to ensure the tooling's continuous operation capability.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A teaching fixture for a plasma beveling machine, comprising a cylindrical probe cap (1) for mounting on a plasma gun head, a probe cap (2) fixedly mounted on the probe cap (1), and a probe (3) mounted on the probe cap (2), characterized in that, The probe cap (2) is in the shape of a conical shell; a notch (201) is provided on the probe cap (2); a fixing cap (4) is threaded on the probe cap (2); the probe (3) is installed on the fixing cap (4).

2. The teaching fixture for a plasma beveling machine according to claim 1, characterized in that, The large-diameter end of the probe cap (2) is fixed on the probe cap (1); the small-diameter end of the probe cap (2) is fixed with a ring (202); the fixing cap (4) is threaded on the ring (202).

3. The teaching fixture for a plasma beveling machine according to claim 2, characterized in that, The fixing cap (4) has a through hole (401) in the middle; the probe (3) is installed in the through hole (401).

4. The teaching fixture for a plasma beveling machine according to claim 3, characterized in that, The probe (3) and the through hole (401) are interference fit.

5. The teaching fixture for a plasma beveling machine according to claim 3, characterized in that, The inner wall of the through hole (401) is provided with an internal thread; the outer wall of the probe (3) is provided with an external thread; the thread of the probe (3) is provided inside the through hole (401).

6. The teaching fixture for a plasma beveling machine according to claim 1, characterized in that, The probe cap (1) has several long grooves (101) evenly arranged along the circumferential direction on its outer wall; the long grooves (101) extend upward from the bottom surface of the probe cap (1), and the length of the long grooves (101) is less than the height of the probe cap (1); the probe cap (1) and the plasma gun head are interference fit.

7. The teaching fixture for a plasma beveling machine according to claim 2, characterized in that, The probe cap (1) has a lighting mechanism installed on its outer wall.

8. The teaching fixture for a plasma beveling machine according to claim 7, characterized in that, The lighting mechanism includes a rectangular housing (5); the housing (5) is fixedly mounted on the side wall of the probe cap (1) and is located between two adjacent long slots (101); a bulb (6) is fixedly mounted on the side of the housing (5) facing the probe (3); the bulb (6) is electrically connected to a switch (7); the switch (7) is electrically connected to a battery; the switch (7) is mounted on the side wall of the housing (5); the battery is mounted inside the housing (5).

9. The teaching fixture for a plasma beveling machine according to claim 8, characterized in that, A charging board is also installed inside the housing (5); the USB charging port (8) of the charging board is installed on the side wall of the housing (5); the charging board is electrically connected to the battery.

10. The teaching fixture for a plasma beveling machine according to claim 9, characterized in that, The height of the housing (5) is less than the height of the probe cap (1); the housing (5) is located on the side of the probe cap (1) away from the notch (201).

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