Automatic fault diagnosis device for medium-speed wire cutting machine
By installing a radar rangefinder on the inner wall of the liquid collector of the middle wire cutting machine, automatic detection and diagnosis of wirefinding mechanism failures is achieved, the problems of reduced processing accuracy and product size errors caused by wear or gaps are solved, and the stability and accuracy of the processing process are improved.
Patent Information
- Application Number
- CN202421774835.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-25
AI Technical Summary
During the processing process of the wire-trapping cutting machine, the guide wheels, screws or gears in the wire-trapping mechanism have wear or gaps, resulting in a reduction in processing accuracy, large errors in product size, and it is difficult to detect faults in a timely manner.
An automatic fault diagnosis device was designed. By installing an X radar rangefinder and a Y radar rangefinder on the inner side wall of the liquid collector, the actual wire-trapping distance of the wire-trapping mechanism is detected, and the distance set by CNC is compared to the fault is diagnosed in real time.
Automatic detection and diagnosis of wire-trapping mechanism faults is realized, reducing processing accuracy and product size errors caused by wear or gaps is avoided, and the stability and accuracy of the processing process is improved.
Smart Images
Figure CN223012106U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medium-speed wire cutting machines, in particular to a fault automatic diagnosis device for a medium-speed wire cutting machine. Background Technique
[0002] The medium-speed wire cutting machine is a high-precision wire electrical discharge machining machine tool. Its wire feeding speed is between high speed and low speed. By cutting multiple times, it reduces material deformation and wire electrode loss, thereby improving the machining quality. When the medium-speed wire cutting machine is used for rough machining, a relatively high wire feeding speed of 8 - 12 mm / s is adopted, while for finish machining, a lower wire feeding speed of 1 - 3 mm / s is used. This compound wire feeding method makes the working process more stable, reduces vibration, and helps to improve the overall machining accuracy and surface quality. The medium-speed wire cutting technology can perform multiple cuts. The first cut mainly completes high-speed and stable cutting, and subsequent cuts are mainly used for fine trimming and polishing. Such multiple cuts not only ensure dimensional accuracy but also effectively reduce the surface roughness to reach the range of Ra1.4 - 1.7 μm.
[0003] The medium-speed wire cutting machine tool mainly consists of a bed, a wire frame, a wire feeding mechanism, and an X - Y numerical control workbench. These components work together to ensure that the electrode wire moves precisely along a predetermined trajectory to complete complex cutting tasks. To ensure effective cooling during the machining process and the removal of electro - erosion products, the machine tool is equipped with a dedicated working fluid system. The high - frequency power supply generates the necessary high - frequency rectangular pulses to achieve precise wire electrical discharge cutting. Modern medium-speed wire cutting machine tools are usually equipped with advanced numerical control and servo systems, which provide highly automated and precise control capabilities, thus greatly improving the operation convenience and machining efficiency.
[0004] However, when the guide wheels, lead screws, or gears in the wire feeding mechanism are worn or have gaps, it is difficult to detect during the machining process, resulting in a reduction in machining accuracy and large errors in the dimensions of the machined products. In view of this, this application proposes a fault automatic diagnosis device for a medium-speed wire cutting machine. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a fault automatic diagnosis device for a medium-speed wire cutting machine, which has the advantages of detecting the actual wire feeding distance of the wire feeding mechanism through radar and comparing and diagnosing it with the numerically controlled wire feeding distance, etc., and solves the problems that when the guide wheels, lead screws, or gears in the wire feeding mechanism are worn or have gaps, it is difficult to detect during the machining process, resulting in a reduction in machining accuracy and large errors in the dimensions of the machined products.
[0006] To achieve the above object, the present utility model provides the following technical solutions: a fault automatic diagnosis device for a middle-wire electrical discharge wire-cutting machine, including a liquid collecting tank, wherein two X tracks are fixedly installed on the inner side wall of the liquid collecting tank, an X moving plate is slidably installed on the top of the X tracks, two Y tracks are fixedly installed on the top of the X moving plate, and a Y moving plate is fixedly installed on the top of the Y tracks;
[0007] An X radar rangefinder which is fixedly installed on the inner side wall of the liquid collecting tank above one of the X tracks and aligned with the X moving plate, one end of one of the Y tracks is fixedly installed with a mounting plate, one side of the mounting plate is fixedly installed with a Y radar rangefinder aligned with the Y moving plate, one side of the liquid collecting tank is fixedly installed with a support base, and one side of the support base is fixedly installed with a fault display screen.
[0008] Further, an X limit block adapted to the X track is fixedly installed at the bottom of the X moving plate, an X slider is fixedly installed at the bottom of the X moving plate, and an X screw rod threadedly connected with the X slider is rotatably installed on the inner side wall of the liquid collecting tank.
[0009] Further, a Y limit block adapted to the Y track is fixedly installed at the bottom of the Y moving plate, a Y slider is fixedly installed at the bottom of the Y moving plate, and a Y screw rod threadedly connected with the Y slider is rotatably installed on the inner side wall of the liquid collecting tank.
[0010] Further, an X gear box is fixedly installed on one side of the liquid collecting tank, an X motor is fixedly installed on one side of the X gear box, the output end of the X gear box is fixedly connected with one end of the X screw rod, and the output end of the X motor is fixedly connected with the input end of the X gear box.
[0011] Further, a Y gear box is fixedly installed on one side of the liquid collecting tank, a Y motor is fixedly installed on one side of the Y gear box, the output end of the Y gear box is fixedly connected with one end of the Y screw rod, and the output end of the Y motor is fixedly connected with the input end of the Y gear box.
[0012] Further, a mounting frame is fixedly installed on the top of the Y moving plate, a wire routing device is fixedly installed on the top of the support base, and a working fluid spray head penetrated by a molybdenum wire is fixedly installed on one side of the wire routing device.
[0013] Further, a connecting pipe is fixedly installed at one end of the working fluid spray head, a working fluid tank is fixedly installed on one side of the liquid collecting tank, a delivery pump is fixedly installed on the inner bottom wall of the working fluid tank, and the connecting pipe is communicated with the output end of the delivery pump.
[0014] Further, a slide bar is fixedly installed on the inner side wall of the working fluid tank, a floating block is fixedly installed on the surface of the slide bar, a contact block is fixedly installed on the surface of the slide bar near the bottom end, and a liquid filling port is opened on the top of the working fluid tank.
[0015] Compared with the prior art, the present utility model provides a fault automatic diagnosis device for a middle-wire walking wire cutting machine, which has the following beneficial effects:
[0016] The fault automatic diagnosis device for the middle-wire walking wire cutting machine detects the actual moving distances of the X moving plate and the Y moving plate through an X radar rangefinder arranged on the inner side wall of the liquid collecting tank and aligned with the X moving plate and a Y radar rangefinder arranged on one side of the mounting plate at one end of the Y track and aligned with the Y moving plate, and transmits the data to the fault display screen for comparison with the set moving data to diagnose whether there is a fault in the middle-wire walking wire cutting machine, solving the problem that it is difficult to detect when the guide wheels, lead screws or gears in the wire walking mechanism are worn or have gaps during the processing, resulting in a reduction in processing accuracy and large errors in the dimensions of the processed products. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is a schematic side sectional view of the structure of the present utility model;
[0019] Figure 3 is a three-dimensional schematic diagram of the liquid collecting tank of the present utility model.
[0020] In the figure: 1. Liquid collecting tank; 2. X track; 3. X moving plate; 31. X limit block; 32. X slider; 4. Y track; 41. Mounting plate; 5. Y moving plate; 51. Y limit block; 52. Y slider; 6. X radar rangefinder; 7. Y radar rangefinder; 8. Support base; 9. Fault display screen; 10. X screw rod; 11. Y screw rod; 12. X gear box; 13. X motor; 14. Y gear box; 15. Y motor; 16. Mounting frame; 17. Wire walking device; 18. Working fluid spray head; 19. Connecting pipe; 20. Working fluid tank; 21. Delivery pump; 22. Slide bar; 23. Floating block; 24. Contact block; 25. Liquid filling port. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1 to 3, A fault automatic diagnosis device for a middle-wire electrical discharge wire cutting machine, including a liquid collecting tank 1. On the inner side wall of the liquid collecting tank 1, two X tracks 2 are fixedly installed. On the top of the X tracks 2, an X moving plate 3 is slidably installed. On the top of the X moving plate 3, two Y tracks 4 are fixedly installed. On the top of the Y tracks 4, a Y moving plate 5 is fixedly installed.
[0023] Among them, on the inner side wall of the liquid collecting tank 1, an X radar rangefinder 6 is fixedly installed above one of the X tracks 2 and aligned with the X moving plate 3. At one end of one of the Y tracks 4, a mounting plate 41 is fixedly installed. On one side of the mounting plate 41, a Y radar rangefinder 7 is fixedly installed and aligned with the Y moving plate 5. On one side of the liquid collecting tank 1, a support base 8 is fixedly installed. On one side of the support base 8, a fault display screen 9 is fixedly installed.
[0024] When the X moving plate 3 moves, the X radar rangefinder 6 detects the actual moving distance of the X moving plate 3 and displays it on the fault display screen 9. When the Y moving plate 5 moves, the Y radar rangefinder 7 detects the actual moving distance of the Y moving plate 5 and displays it on the fault display screen 9, and compares it with the set moving distance.
[0025] At the same time, at the bottom of the X moving plate 3, an X limit block 31 adapted to the X track 2 is fixedly installed. At the bottom of the X moving plate 3, an X slider 32 is fixedly installed. On the inner side wall of the liquid collecting tank 1, an X screw rod 10 is rotatably installed and threadedly connected to the X slider 32.
[0026] Among them, on one side of the liquid collecting tank 1, an X gearbox 12 is fixedly installed. On one side of the X gearbox 12, an X motor 13 is fixedly installed. The output end of the X gearbox 12 is fixedly connected to one end of the X screw rod 10. The output end of the X motor 13 is fixedly connected to the input end of the X gearbox 12. When the X motor 13 drives the X gearbox 12 to work, drives the X screw rod 10 to rotate, and drives the X moving plate 3 to move, when there is an error between the set X-direction moving distance and the actual moving distance, it is diagnosed that the X gearbox 12 or the X screw rod 10 is damaged.
[0027] At the same time, at the bottom of the Y moving plate 5, a Y limit block 51 adapted to the Y track 4 is fixedly installed. At the bottom of the Y moving plate 5, a Y slider 52 is fixedly installed. On the inner side wall of the liquid collecting tank 1, a Y screw rod 11 is rotatably installed and threadedly connected to the Y slider 52.
[0028] Among them, a Y gearbox 14 is fixedly installed on one side of the liquid collecting tank 1, a Y motor 15 is fixedly installed on one side of the Y gearbox 14, the output end of the Y gearbox 14 is fixedly connected to one end of a Y screw rod 11, and the output end of the Y motor 15 is fixedly connected to the input end of the Y gearbox 14. When the Y motor 15 drives the Y gearbox 14 to work, drives the Y screw rod 11 to rotate, and drives the Y moving plate 5 to move, when there is an error between the set Y-direction moving distance and the actual moving distance, it is diagnosed that the Y gearbox 14 or the Y screw rod 11 is damaged.
[0029] At the same time, a mounting frame 16 is fixedly installed on the top of the Y moving plate 5, a wire routing device 17 is fixedly installed on the top of the support base 8, and a working fluid spray head 18 penetrated by molybdenum wire is fixedly installed on one side of the wire routing device 17.
[0030] Among them, a connecting pipe 19 is fixedly installed at one end of the working fluid spray head 18, a working fluid tank 20 is fixedly installed on one side of the liquid collecting tank 1, a delivery pump 21 is fixedly installed on the inner bottom wall of the working fluid tank 20, and the connecting pipe 19 is communicated with the output end of the delivery pump 21.
[0031] Secondly, a sliding rod 22 is fixedly installed on the inner side wall of the working fluid tank 20, a floating block 23 is fixedly installed on the surface of the sliding rod 22, a contact block 24 is fixedly installed on the surface of the sliding rod 22 near the bottom end, and a liquid filling port 25 is opened at the top of the working fluid tank 20. When the liquid level of the working fluid inside the working fluid tank 20 drops, the floating block 23 descends. When the floating block 23 comes into contact with the contact block 24, an electrical signal is transmitted to the fault display screen 9 to prompt that the working fluid needs to be added.
[0032] When this embodiment is in use, the actual moving distance of the X moving plate 3 is detected by the X radar rangefinder 6 and displayed on the fault display screen 9. The actual moving distance of the Y moving plate 5 is detected by the Y radar rangefinder 7 and displayed on the fault display screen 9, and compared with the set moving distance. When there is an error in the data, it can be diagnosed that the moving component has a fault. When the floating block 23 comes into contact with the contact block 24, it can be diagnosed by transmitting an electrical signal to the fault display screen 9 that the working fluid needs to be added.
[0033] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed electrical connection technologies are not elaborated in the text.
[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic fault diagnosis device for a medium-speed wire cutting machine, comprising a liquid collecting box (1), characterized in that: Two X-tracks (2) are fixedly mounted on the inner side wall of the liquid collecting box (1); an X-moving plate (3) is slidably mounted on the top of the X-track (2); two Y-tracks (4) are fixedly mounted on the top of the X-moving plate (3); and a Y-moving plate (5) is fixedly mounted on the top of the Y-track (4); An X radar rangefinder (6) located above one of the X tracks (2) and aligned with the X moving plate (3) is fixedly mounted on the inner side wall of the liquid collecting box (1); a mounting plate (41) is fixedly mounted on one end of one of the Y tracks (4); a Y radar rangefinder (7) aligned with the Y moving plate (5) is fixedly mounted on one side of the mounting plate (41); a support base (8) is fixedly mounted on one side of the liquid collecting box (1); and a fault display screen (9) is fixedly mounted on one side of the support base (8).
2. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 1 is characterized in that: An X-limiting block (31) adapted to the X-track (2) is fixedly mounted on the bottom of the X-moving plate (3), an X-sliding block (32) is fixedly mounted on the bottom of the X-moving plate (3), and an X-screw rod (10) threadedly connected to the X-sliding block (32) is rotatably mounted on the inner side wall of the liquid collecting box (1).
3. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 1 is characterized in that: A Y limit block (51) adapted to the Y track (4) is fixedly mounted on the bottom of the Y moving plate (5), a Y sliding block (52) is fixedly mounted on the bottom of the Y moving plate (5), and a Y screw rod (11) threadedly connected to the Y sliding block (52) is rotatably mounted on the inner side wall of the liquid collecting box (1).
4. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 2 is characterized in that: An X gear box (12) is fixedly mounted on one side of the liquid collecting box (1), an X motor (13) is fixedly mounted on one side of the X gear box (12), an output end of the X gear box (12) is fixedly connected to one end of the X screw rod (10), and an output end of the X motor (13) is fixedly connected to an input end of the X gear box (12).
5. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 3 is characterized in that: A Y gear box (14) is fixedly mounted on one side of the liquid collecting box (1), a Y motor (15) is fixedly mounted on one side of the Y gear box (14), an output end of the Y gear box (14) is fixedly connected to one end of the Y screw rod (11), and an output end of the Y motor (15) is fixedly connected to an input end of the Y gear box (14).
6. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 1 is characterized in that: A mounting frame (16) is fixedly mounted on the top of the Y movable plate (5), a wiring device (17) is fixedly mounted on the top of the supporting base (8), and a working fluid nozzle (18) penetrated by a molybdenum wire is fixedly mounted on one side of the wiring device (17).
7. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 6 is characterized in that: A connecting pipe (19) is fixedly mounted on one end of the working liquid spray head (18), a working liquid tank (20) is fixedly mounted on one side of the liquid collecting tank (1), a delivery pump (21) is fixedly mounted on the inner bottom wall of the working liquid tank (20), and the connecting pipe (19) is connected to the output end of the delivery pump (21).
8. The automatic fault diagnosis device for medium-speed wire cutting machine according to claim 7 is characterized in that: A slide bar (22) is fixedly mounted on the inner wall of the working liquid tank (20), a floating block (23) is fixedly mounted on the surface of the slide bar (22), a contact block (24) is fixedly mounted on the surface of the slide bar (22) near the bottom end, and a liquid filling port (25) is opened on the top of the working liquid tank (20).