Cutter response vibration monitoring device

Abstract

The utility model discloses a cutter response vibration monitoring device which comprises a base, one end of the top of the base is fixedly connected with a first box body, the other end of the top of the base is fixedly connected with a second box body, the bottom end of the inner wall of the second box body is fixedly connected with a first amplifying circuit, after a sliding rod is pressed downwards, a second cutter is bent, and at the moment, the sliding rod slides; the bottom end of the second cutter is quickly separated from the surface of the second cutter, then the second cutter vibrates, and the first arc-shaped noise sensor and the second arc-shaped noise sensor can receive vibration noise signals generated by vibration of the second cutter from two different directions correspondingly. By arranging the first amplifying circuit, the first filter, the second amplifying circuit and the second filter, received vibration noise signals can be quickly screened out, and by arranging the first vibration noise monitor and the second vibration noise monitor, two sets of vibration noise signals can be extracted, processed and analyzed. Therefore, relevant parameters of the two groups of second cutters are provided.

Description

Technical Field

[0001] The utility model relates to the technical field of tool detection for numerically controlled machine tools, in particular to a tool response vibration monitoring device. Background Art

[0002] The tool response vibration monitoring device is an important tool for real-time monitoring of the vibration of the tool during the machining process. The tool will be affected by the cutting force during the cutting process, causing vibration. These vibration signals are closely related to factors such as the cutting force, tool wear, and machining materials during the cutting process. By performing digital signal processing and analysis on the collected vibration signals, characteristic parameters related to the tool status can be extracted. These parameters can reflect information such as the degree of tool wear, tool breakage, and tool material.

[0003] Existing CNC machine tool tool testing requires regular tool removal and testing, which is cumbersome, delays production time, and causes losses to the company. Although there are currently methods for detecting tool vibration, these methods require invasive data collection on existing CNC machine tool equipment, damaging the existing CNC machine tool equipment. The operation process is cumbersome and cannot achieve real-time detection of the operating vibration state of CNC machine tool tools. To address these problems, Chinese patent CN209223710U discloses a vibration-based tool online testing device. This device monitors the real-time online vibration of CNC machine tool tools during operation, and promptly feeds back vibration phenomena caused by poor tool dynamic balance, unreasonable cutting parameters, or machine tool impact to an external server, thereby protecting the tool and electric spindle and improving the reliability and service life of the electric spindle. The sensor unit for CNC machine tool tool vibration detection uses a vibration velocity sensor, which can achieve non-invasive vibration signal detection, ensure the integrity of the original equipment, is easy to use, has low output impedance, a good signal-to-noise ratio, and can measure small vibrations at a low operating frequency. It has a wide detection range and improves the detection accuracy of vibration signals.

[0004] This device cannot monitor the response vibration of a new tool that is about to be replaced. The new tool must be installed on the CNC machine tool for monitoring. If there is a quality problem with the new tool, the new tool must be removed from the CNC machine tool and replaced with another tool. This process not only wastes the staff's time, but also reduces the monitoring speed of the tool response vibration. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] The tool response vibration monitoring device includes a base, wherein one end of the top of the base is fixedly connected to a first box, the other end of the top of the base is fixedly connected to a second box, the bottom end of the inner wall of the second box is fixedly connected to a first amplifier circuit, the outer wall of one side of the first amplifier circuit is fixedly connected to a first filter, the center of the outer wall of one side of the first filter is fixedly connected to a first data line, the top of the first data line is fixedly connected to a first vibration noise monitor, the top of the first amplifier circuit is fixedly connected to a first arc noise sensor, a square cavity is opened at the center of the top of the second box running through it from top to bottom, the bottom end of the inner wall of the square cavity is fixedly connected to a second filter, the bottom end of the second filter is fixedly connected to a second amplifier circuit, the bottom end of the second amplifier circuit is fixedly connected to a second arc noise sensor, the center of the top of the second filter is fixedly connected to a second data line, the top of the second data line is fixedly connected to a second vibration noise monitor, a side plate is passed through the center of one side of the inner wall of the second box, the bottom end of the outer wall of one side of the side plate is fixedly connected to a placement plate, a second tool is placed on the top of each placement plate, the first arc noise sensor is arranged directly below the second tool, and the second arc noise sensor is arranged directly above the second tool.

[0008] As a further description of the above technical solution:

[0009] A motor is installed in the first box body, the movable end of the motor is rotatably connected to a shaft, a rotating plate is fixedly connected to the outer wall of one side of the shaft, a vibration velocity sensor is fixedly connected to the top center of the rotating plate, and a warning light is fixedly connected to the outer wall of one side of the vibration velocity sensor.

[0010] As a further description of the above technical solution:

[0011] Both ends of the outer wall of one side of the rotating plate are fixedly connected with a threaded shaft, one end of the outer wall of the threaded shaft is sleeved with a first tool, and the other end of the outer wall of the threaded shaft is threadedly connected with a nut.

[0012] As a further description of the above technical solution:

[0013] One end of the top of the second box body is provided with a sliding groove running through it from top to bottom, the inner wall of the sliding groove is slidably connected to a sliding rod, and the other end of the top of the second box body is vertically penetrated by a shaft ring, the inner wall of the shaft ring is rotatably connected to the first shaft core, the top of the first shaft core is fixedly connected to the first turntable, the bottom of the first shaft core is fixedly connected to the first threaded rod, the outer wall of the first threaded rod is threadedly connected to a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected to a hollow column, the bottom of the hollow column is fixedly connected to a pressure plate, and the top of the outer wall of one side of the side plate is slidably connected to the outer wall of the other side of the pressure plate.

[0014] As a further description of the above technical solution:

[0015] The two ends of the outer wall on the other side of the pressure plate are fixedly connected to a U-shaped frame, and the outer wall on the other side of the side plate is fixedly connected to a first frosting plate. Sliding holes are opened at both ends of the side plate, and the inner walls of the sliding holes are slidably connected to the two ends of the outer wall of the U-shaped frame. The top and bottom of the U-shaped frame are slidably connected to a hollow frame.

[0016] As a further description of the above technical solution:

[0017] A second shaft core passes through the center of one side of the inner wall of the hollow frame, a second turntable is fixedly connected to the outer wall of one side of the second shaft core, a second threaded rod is fixedly connected to the outer wall of the other side of the second shaft core, one end face of the second threaded rod is rotatably connected to a rotating shaft, and one end of the outer wall of the rotating shaft is fixedly connected to the center of the other side of the inner wall of the hollow frame.

[0018] As a further description of the above technical solution:

[0019] A second frosted plate is fixedly connected to the center of the outer wall of one side of the hollow frame, and both sides of the front end of the second box body are fixedly connected to slide rails, and the inner wall of the slide rail is slidably connected to the box plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) After the slide bar is pressed downward, the second tool will bend. At this time, slide the slide bar so that its bottom end quickly separates from the surface of the second tool, and then the second tool will vibrate. The first arc noise sensor and the second arc noise sensor can receive the vibration noise signal generated by the vibration of the second tool from two different directions respectively. By setting the first amplifier circuit and the first filter, the second amplifier circuit and the second filter, the received vibration noise signal can be quickly screened out. By setting the first vibration noise monitor and the second vibration noise monitor, the two groups of vibration noise signals can be extracted, processed and analyzed, thereby providing the relevant parameters of the two groups of second tools, which can not only play a comparative role, but also quickly monitor whether there are quality problems with the new tool, which helps to reduce the time wasted by the staff.

[0022] (2) By setting a simple connection method between the threaded shaft and the nut, the disassembly and assembly steps of the first tool are made more convenient and quick. When the first turntable on the top of the first shaft core rotates, the first threaded rod will also rotate together. At this time, the threaded sleeve can move up and down on the outer wall of the rotating first threaded rod, and the pressure plate will also move up and down together. When the pressure plate moves downward, the second tool placed on the placement plate can be fixed. When the second turntable rotates, the second threaded rod will also rotate together. At this time, the rotating second threaded rod can move back and forth in the threaded hole inside the U-shaped frame. At the same time, the first frosting plate and the second frosting plate will move closer to or away from each other. When the opposite surfaces of the first frosting plate and the second frosting plate are tightly attached to each other, the pressure plate can be fixed again. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural diagrams of the present utility model;

[0024] Figure 2 This is the second structural diagram of the present utility model;

[0025] Figure 3 It is a front view of the utility model;

[0026] Figure 4 It is a front sectional view of the utility model;

[0027] Figure 5 It is a right side view of the utility model;

[0028] Figure 6 For this utility model Figure 4 A partial enlarged view of area A in the middle;

[0029] Figure 7 For this utility model Figure 4 A partial enlarged view of area B in the middle.

[0030] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0031] 1. Base; 2. First housing; 3. Motor; 4. Shaft; 5. Rotating plate; 6. Vibration velocity sensor; 7. Warning light; 8. Threaded shaft; 9. First tool; 10. Nut; 11. Second housing; 12. First amplifier circuit; 13. First filter; 14. First data line; 15. First vibration noise monitor; 16. First arc noise sensor; 17. Square cavity; 18. Second filter; 19. Second amplifier circuit; 20. Second arc noise sensor; 21. Second data line; 22. Second vibration and noise monitor; 23. slide; 24. slide rod; 25. placement plate; 26. second tool; 27. shaft collar; 28. first shaft core; 29. first turntable; 30. first threaded rod; 31. threaded sleeve; 32. hollow column; 33. pressure plate; 34. side plate; 35. U-shaped frame; 36. first frosted plate; 37. slide hole; 38. hollow frame; 39. second shaft core; 40. second turntable; 41. second threaded rod; 42. rotating shaft; 43. second frosted plate; 44. slide rail; 45. box plate. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0035] Reference Figure 1-7The present invention provides an embodiment of a tool response vibration monitoring device, comprising a base 1, one end of the top of the base 1 is fixedly connected to a first box body 2, a motor 3 is installed in the first box body 2, the movable end of the motor 3 is rotatably connected to a shaft body 4, an outer wall of one side of the shaft body 4 is fixedly connected to a rotating plate 5, a vibration speed sensor 6 is fixedly connected at the top center of the rotating plate 5, a warning light 7 is fixedly connected to the outer wall of one side of the vibration speed sensor 6, a threaded shaft 8 is fixedly connected to both ends of the outer wall of one side of the rotating plate 5, one end of the outer wall of the threaded shaft 8 is sleeved with a first tool 9, and the other end of the outer wall of the threaded shaft 8 is threadedly connected to a nut 10. By setting the vibration speed sensor 6, the vibration signal generated by the first tool 9 can be received. When the first tool 9 is worn or broken, the vibration signal will be abnormal. At this time, the warning light 7 will light up, thereby serving as a reminder to the staff. By setting a simple connection method between the threaded shaft 8 and the nut 10, the disassembly and assembly steps of the first tool 9 are more convenient and quick.

[0036] The other end of the top of the base 1 is fixedly connected to a second box body 11, and the bottom end of the inner wall of the second box body 11 is fixedly connected to a first amplifier circuit 12, and a first filter 13 is fixedly connected to the outer wall of one side of the first amplifier circuit 12, and a first data line 14 is fixedly connected to the center of the outer wall of one side of the first filter 13, and the top of the first data line 14 is fixedly connected to a first vibration and noise monitor 15, and the top of the first amplifier circuit 12 is fixedly connected to a first arc noise sensor 16. A square cavity 17 running through the top of the second box body 11 is opened at the center of the top, and a second filter 18 is fixedly connected to the bottom end of the inner wall of the square cavity 17, and a second filter 18 is fixedly connected to the bottom end of the second filter 18. A second amplifier circuit 19 is fixedly connected to the bottom end of the second amplifier circuit 19. A second arc noise sensor 20 is fixedly connected to the second data line 21 at the center of the top of the second filter 18, and a second vibration and noise monitor 22 is fixedly connected to the top of the second data line 21.

[0037] A slide groove 23 is provided at one end of the top of the second box body 11, and a slide rod 24 is slidably connected to the inner wall of the slide groove 23. A side plate 34 is passed through the center of one side of the inner wall of the second box body 11, and a square perforation is provided at the bottom end of the other side of the inner wall of the second box body 11. One end of the outer wall of the first vibration noise monitor 15 is set in the square perforation, and a placement plate 25 is fixedly connected to the bottom end of the outer wall of one side of the side plate 34. A second tool 26 is placed on the top of the placement plate 25. The second tool 26 is a new tool. After pressing the slide rod 24 downward, the second tool 26 will bend. At this time, the slide rod 24 is slid to allow its bottom end to quickly separate from the surface of the second tool 26, and then the second tool 26 will Vibration, the first arc noise sensor 16 and the second arc noise sensor 20 can receive the vibration noise signal generated by the vibration of the second tool 26 from two different directions respectively, and by setting the first amplifier circuit 12 and the first filter 13, the second amplifier circuit 19 and the second filter 18, the received vibration noise signal can be quickly screened out, and by setting the first vibration noise monitor 15 and the second vibration noise monitor 22, the two groups of vibration noise signals can be extracted, processed and analyzed, thereby providing the relevant parameters of the two groups of second tools 26, which can not only play a comparison role, but also can quickly monitor whether there are quality problems with the new tools.

[0038] The other end of the top of the second box body 11 is vertically penetrated by a shaft ring 27, and the inner wall of the shaft ring 27 is rotatably connected to the first shaft core 28, the top of the first shaft core 28 is fixedly connected to the first turntable 29, and the bottom of the first shaft core 28 is fixedly connected to the first threaded rod 30. The outer wall of the first threaded rod 30 is threadedly connected to a threaded sleeve 31, and the outer wall of the threaded sleeve 31 is fixedly connected to a hollow column 32, and the bottom of the hollow column 32 is fixedly connected to a pressing plate 33. When the first turntable 29 at the top of the first shaft core 28 rotates, the first threaded rod 30 will also rotate together. At this time, the threaded sleeve 31 can move up and down on the outer wall of the rotating first threaded rod 30, and the pressing plate 33 will also move up and down together. When the pressing plate 33 moves downward, the second tool 26 placed on the placing plate 25 can be fixed. The top of the outer wall of one side of the side plate 34 is slidably connected to the outer wall of the other side of the pressing plate 33. By setting a connection structure between the pressing plate 33 and the side plate 34, it is beneficial to improve the stability of the pressing plate 33 during the up and down movement.

[0039] The two ends of the outer wall of the other side of the pressure plate 33 are fixedly connected to the U-shaped frame 35, and the outer wall of the other side of the side plate 34 is fixedly connected to the first frosting plate 36. Slide holes 37 are provided at both ends of the side plate 34. The inner walls of the slide holes 37 are slidably connected to the two ends of the outer wall of the U-shaped frame 35. The top and bottom of the U-shaped frame 35 are slidably connected to the hollow frame 38. A second shaft core 39 passes through the center of one side of the inner wall of the hollow frame 38. The outer wall of one side of the second shaft core 39 is fixedly connected to the second turntable 40. The outer wall of the other side of the second shaft core 39 is fixedly connected to the second threaded rod 41. A threaded hole is provided at the center of one side of the inner wall of the U-shaped frame 35. The outer wall of the second threaded rod 41 passes through the threaded hole and can be threadedly connected to the inner wall of the threaded hole. One end face of the second threaded rod 41 is rotatably connected to the rotating shaft 42. The outer wall of the rotating shaft 42 One end is fixedly connected to the center of the other side of the inner wall of the hollow frame 38, and a second frosting plate 43 is fixedly connected to the center of the outer wall of one side of the hollow frame 38. When the second turntable 40 rotates, the second threaded rod 41 will also rotate together. At this time, the rotating second threaded rod 41 can move back and forth in the threaded hole inside the U-shaped frame 35. At the same time, the first frosting plate 36 and the second frosting plate 43 will approach or move away from each other. When the opposite surfaces of the first frosting plate 36 and the second frosting plate 43 are tightly attached to each other, the pressure plate 33 can be fixed again. Both sides of the front end of the second box body 11 are fixedly connected with sliding rails 44, and the inner wall of the sliding rails 44 is slidably connected with a box plate 45. By setting the box plate 45, the debris broken by the tool can be blocked.

[0040] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A tool response vibration monitoring device, comprising a base (1), characterized in that: One end of the top of the base (1) is fixedly connected to a first box (2), the other end of the top of the base (1) is fixedly connected to a second box (11), the bottom end of the inner wall of the second box (11) is fixedly connected to a first amplifier circuit (12), the outer wall of one side of the first amplifier circuit (12) is fixedly connected to a first filter (13), the center of the outer wall of one side of the first filter (13) is fixedly connected to a first data line (14), the top of the first data line (14) is fixedly connected to a first vibration noise monitor (15), the top of the first amplifier circuit (12) is fixedly connected to a first arc-shaped noise sensor (16), a square cavity (17) is provided at the center of the top of the second box (11) and is passed through from top to bottom, the bottom end of the inner wall of the square cavity (17) is fixedly connected to the second filter ( 18), the bottom end of the second filter (18) is fixedly connected to a second amplifier circuit (19), the bottom end of the second amplifier circuit (19) is fixedly connected to a second arc noise sensor (20), the center of the top of the second filter (18) is fixedly connected to a second data line (21), the top of the second data line (21) is fixedly connected to a second vibration noise monitor (22), a side plate (34) is passed through the center of one side of the inner wall of the second box (11), the bottom end of the outer wall of one side of the side plate (34) is fixedly connected to a placement plate (25), a second tool (26) is placed on the top of each placement plate (25), the first arc noise sensor (16) is arranged directly below the second tool (26), and the second arc noise sensor (20) is arranged directly above the second tool (26).

2. The tool response vibration monitoring device according to claim 1, characterized in that: A motor (3) is installed in the first box (2); a movable end of the motor (3) is rotatably connected to a shaft (4); a rotating plate (5) is fixedly connected to an outer wall of one side of the shaft (4); a vibration velocity sensor (6) is fixedly connected to the center of the top of the rotating plate (5); and a warning light (7) is fixedly connected to an outer wall of one side of the vibration velocity sensor (6).

3. The tool response vibration monitoring device according to claim 2, characterized in that: Both ends of the outer wall of one side of the rotating plate (5) are fixedly connected with a threaded shaft (8), one end of the outer wall of the threaded shaft (8) is sleeved with a first tool (9), and the other end of the outer wall of the threaded shaft (8) is threadedly connected with a nut (10).

4. The tool response vibration monitoring device according to claim 1, characterized in that: A sliding groove (23) is provided at one end of the top of the second box body (11) and is passed through from top to bottom. The inner wall of the sliding groove (23) is slidably connected to a sliding rod (24). A shaft ring (27) is vertically passed through the other end of the top of the second box body (11). The inner wall of the shaft ring (27) is rotatably connected to the first shaft core (28). The top of the first shaft core (28) is fixedly connected to the first turntable (29). The bottom of the first shaft core (28) is fixedly connected to the first threaded rod (30). The outer wall of the first threaded rod (30) is threadedly connected to a threaded sleeve (31). The outer wall of the threaded sleeve (31) is fixedly connected to a hollow column (32). The bottom of the hollow column (32) is fixedly connected to a pressure plate (33). The top of the outer wall of one side of the side plate (34) is slidably connected to the outer wall of the other side of the pressure plate (33).

5. The tool response vibration monitoring device according to claim 4, characterized in that: The outer wall of the other side of the pressure plate (33) is fixedly connected to a U-shaped frame (35) at both ends, and the outer wall of the other side of the side plate (34) is fixedly connected to a first grinding plate (36). Both ends of the side plate (34) are provided with sliding holes (37). The inner walls of the sliding holes (37) are slidably connected to the outer walls of the U-shaped frame (35) at both ends. The top and bottom of the U-shaped frame (35) are slidably connected to hollow frames (38).

6. The tool response vibration monitoring device according to claim 5, characterized in that: A second shaft core (39) passes through the center of one side of the inner wall of the hollow frame (38); a second turntable (40) is fixedly connected to the outer wall of one side of the second shaft core (39); a second threaded rod (41) is fixedly connected to the outer wall of the other side of the second shaft core (39); one end face of the second threaded rod (41) is rotatably connected to a rotating shaft (42); one end of the outer wall of the rotating shaft (42) is fixedly connected to the center of the other side of the inner wall of the hollow frame (38).

7. The tool response vibration monitoring device according to claim 6, characterized in that: A second frosted plate (43) is fixedly connected to the center of the outer wall of one side of the hollow frame (38), and both sides of the front end of the second box body (11) are fixedly connected to slide rails (44), and the inner wall of the slide rails (44) is slidably connected to a box plate (45).

Images