Abnormal vibration detection equipment for numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool abnormal vibration detection device which comprises a detection box, the inner top wall of the detection box is fixedly connected with a pneumatic cylinder, and the lower surface of the pneumatic cylinder is movably connected with a pneumatic rod. According to the abnormal vibration detection equipment for the numerical control machine tool, through the arrangement of the detection box, the detection head and the amplification head and the cooperation of the pneumatic cylinder and the pneumatic rod, the position between the vibration detector and the amplification head and the position between the vibration sensor and the amplification head are adjusted, and the amplification head drives the detection head to naturally fall at the movable hole under the action of self gravity; a part of the detection heads can be ensured to be in a just contact state with the surface of the machine tool, the detection application range is enlarged through the multiple detection heads, the applicability is improved, when the machine tool generates abnormal vibration, the detection heads are driven to vibrate and make contact with the vibration sensor through amplification of the amplification head, and finally a signal is transmitted to the vibration detector for detection. When the machine tool is on a plane, the detection head is just in contact with the machine tool surface for detection.

Description

Technical Field

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

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, represent them with coded numbers, and input them into the CNC device through information carriers.

[0003] After searching, Chinese patent application publication number CN 117583952 A discloses an abnormal vibration detection device for CNC machine tools. The present invention measures the distance between the upper end surface of the CNC machine tool and the upper end surface after two infrared rangefinders are moved to determine the horizontal state of the upper end of the detected part of the CNC machine tool. The distance between the upper end surface and the CNC machine tool is measured by two infrared rangefinders to ensure that the upper end of the detected part of the CNC machine tool is in a horizontal state, reduce the interference of the depression of the upper end of the CNC machine tool on the vibration intensity detection, and improve the detection accuracy. However, in actual use, the fixation of the detection part cannot better fit some curvatures of the outer surface of the CNC machine tool itself, and it is not convenient to adjust the detection. A structure that can increase the detection area and mainly involves a part of the touch can assist in completing the detection to improve the detection efficiency. Therefore, it is necessary to design an abnormal vibration detection device for CNC machine tools. Utility Model Content

[0004] The main purpose of the utility model is to provide an abnormal vibration detection device for a numerically controlled machine tool, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for detecting abnormal vibration of a CNC machine tool comprises a detection box, an inner top wall of the detection box is fixedly connected to a pneumatic cylinder, a lower surface of the pneumatic cylinder is movably connected to a pneumatic rod, one end of the pneumatic rod is fixedly connected to a vibration detector, and a lower surface of the vibration detector is fixedly connected to a vibration sensor; movable holes are opened on the lower surface of the detection box, and the number of the movable holes is several, and the several movable holes are arranged in the form of a rectangular array, a detection head is movably overlapped on the inner side wall of the movable hole, an amplifying head is fixedly connected to the upper surface of the detection head, and the size of the amplifying head is larger than the size of the movable hole.

[0007] In order to achieve the purpose of convenient observation, as a CNC machine tool abnormal vibration detection device of the utility model, an observation window is opened on the front surface of the detection box.

[0008] In order to facilitate the height adjustment of the detection box, the utility model provides an abnormal vibration detection device for CNC machine tools. The surface of the detection box is fixedly connected to an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to a slider, and screws are symmetrically arranged in the middle of the slider, and the top of the screw is fixedly connected to a limiting nut.

[0009] In order to achieve the purpose of providing driving force for height adjustment, as an abnormal vibration detection device for CNC machine tools of the utility model, the lower surface of the screw is fixedly connected to a motor, and the outer surface of the motor is fixedly connected to a mounting block.

[0010] In order to achieve the purpose of storing and supplying electricity, as an abnormal vibration detection device for CNC machine tools of the utility model, the lower surface of the mounting block is fixedly connected to a stabilizing block, the front surface of the stabilizing block is provided with an installation chamber, and the inner bottom wall of the installation chamber is fixedly connected to a power storage block.

[0011] In order to achieve the purpose of helping to dissipate heat, as a CNC machine tool abnormal vibration detection device of the utility model, the front surface of the installation room is hingedly connected with a protective door, and the side surface of the installation room is symmetrically provided with heat dissipation gaps.

[0012] In order to achieve the purpose of increasing the contact area and helping to prevent slipping, as a CNC machine tool abnormal vibration detection device of the utility model, the lower surface of the stabilizing block is fixedly connected with an anti-slip pad.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the detection box is placed on the upper surface of the CNC machine tool through the arrangement of the detection box, the pneumatic cylinder, the pneumatic rod, the vibration detector, the vibration sensor, the movable hole, the detection head and the magnifying head. The position of the vibration detector, the vibration sensor and the magnifying head is adjusted through the cooperation of the pneumatic cylinder and the pneumatic rod. The magnifying head drives the detection head to naturally fall at the movable hole under its own gravity. When the surface of the machine tool is tilted, it can ensure that a part of the detection head is in a state of just contact with the surface of the machine tool. Multiple detection heads increase the applicable scope of detection and improve applicability. When the machine tool generates abnormal vibration, it will drive the detection head to vibrate, and after amplification by the magnifying head, it will contact the vibration sensor, and finally transmit the signal to the vibration detector for detection. When the machine tool is flat, it can ensure that the detection head is in a state of just contact with the surface of the machine tool for better detection.

[0015] 2. In the utility model, through the arrangement of the electric telescopic rod, the screw rod, the nut, the slider, the protective door and the heat dissipation gap, the electric telescopic rod can adjust the position between the detection box and the machine tool, the screw rod can drive the slider to slide up and down, and adjust the contact height position between the detection box and the machine tool, the limit nut limits the height of the screw rod to prevent the slider from falling off the screw rod, thereby improving safety, the protective door can protect the safety of the components inside the installation room, prevent exposure to external damage, thereby improving safety, and the heat dissipation gap can help dissipate heat and cool down, thereby extending the service life of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the detection box of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a stabilizing block according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the detection head of an embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the movable hole structure of an embodiment of the utility model.

[0021] In the figure: 1. detection box; 2. pneumatic cylinder; 3. pneumatic rod; 4. vibration detector; 5. vibration sensor; 6. movable hole; 7. detection head; 8. magnifying head; 9. observation window; 10. electric telescopic rod; 11. slider; 12. screw rod; 13. limit nut; 14. motor; 15. mounting block; 16. stabilizing block; 17. mounting room; 18. power storage block; 19. protective door; 20. heat dissipation gap; 21. anti-slip mat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] like Figure 1-5As shown, an abnormal vibration detection device for a CNC machine tool comprises a detection box 1, a pneumatic cylinder 2 is fixedly connected to the inner top wall of the detection box 1, a pneumatic rod 3 is movably connected to the lower surface of the pneumatic cylinder 2, one end of the pneumatic rod 3 is fixedly connected to a vibration detector 4, and a vibration sensor 5 is fixedly connected to the lower surface of the vibration detector 4;

[0025] In this embodiment, a movable hole 6 is opened on the lower surface of the detection box 1. There are several movable holes 6, which are arranged in the form of a rectangular array. A detection head 7 is movably overlapped on the inner wall of the movable hole 6. An enlargement head 8 is fixedly connected to the upper surface of the detection head 7. The size of the enlargement head 8 is larger than the size of the movable hole 6.

[0026] During specific use, the detection box 1 is placed on the upper surface of the CNC machine tool. Through the cooperation of the pneumatic cylinder 2 and the pneumatic rod 3, the positions of the vibration detector 4, the vibration sensor 5 and the magnifying head 8 are adjusted. The magnifying head 8 drives the detection head 7 to naturally fall at the movable hole 6 due to its own gravity. When the surface of the machine tool is tilted, it can ensure that a part of the detection head 7 is in a state of just contact with the surface of the machine tool. Multiple detection heads 7 increase the applicable scope of detection and improve applicability. When the machine tool generates abnormal vibration, it will drive the detection head 7 to vibrate, and after amplification by the magnifying head 8, it will contact the vibration sensor 5, and finally transmit the signal to the vibration detector 4 for detection. When the machine tool is flat, it can ensure that the detection head 7 is in a state of just contact with the surface of the machine tool for better detection.

[0027] In this embodiment, an observation window 9 is provided on the front surface of the detection box 1 .

[0028] During specific use, the observation window 9 can better observe the positions of the internal components of the detection box 1, which is convenient for control and adjustment.

[0029] In this embodiment, an electric telescopic rod 10 is fixedly connected to the surface of the detection box 1, one end of the electric telescopic rod 10 is fixedly connected to a slider 11, a screw rod 12 is symmetrically arranged in the middle of the slider 11, and a limiting nut 13 is fixedly connected to the top of the screw rod 12.

[0030] During specific use, the electric telescopic rod 10 can adjust the position between the detection box 1 and the machine tool, the screw 12 can drive the slider 11 to slide up and down, adjust the contact height position between the detection box 1 and the machine tool, and the limit nut 13 limits the height of the screw 12 to prevent the slider 11 from falling off the screw 12, thereby improving safety.

[0031] In this embodiment, a motor 14 is fixedly connected to the lower surface of the screw rod 12 , and a mounting block 15 is fixedly connected to the outer surface of the motor 14 .

[0032] During specific use, the mounting block 15 can be fixed on the stabilizing block 16 to facilitate fixed installation of the motor 14 .

[0033] In this embodiment, a stabilizing block 16 is fixedly connected to the lower surface of the mounting block 15 , a mounting chamber 17 is provided on the front surface of the stabilizing block 16 , and a power storage block 18 is fixedly connected to the inner bottom wall of the mounting chamber 17 .

[0034] During specific use, the stabilizing block 16 stabilizes the center of gravity, and the installation chamber 17 can be installed with a power storage block 18 to ensure power storage for the equipment and normal operation.

[0035] In this embodiment, a protection door 19 is hingedly connected to the front surface of the installation chamber 17 , and heat dissipation slots 20 are symmetrically provided on the side surfaces of the installation chamber 17 .

[0036] During specific use, the protection door 19 can protect the safety of the internal components of the installation room 17, avoid exposure to external damage, and improve safety. The heat dissipation gap 20 can help dissipate heat and cool down, thereby extending the service life of the components.

[0037] In this embodiment, an anti-slip pad 21 is fixedly connected to the lower surface of the stabilizing block 16 .

[0038] During specific use, the anti-skid pad 21 increases the contact area with the ground, improves the friction, and avoids sliding, which may cause errors in detection data.

[0039] Working principle: During use, the electric telescopic rod 10 can adjust the position between the detection box 1 and the machine tool, the screw 12 can drive the slider 11 to slide up and down, and adjust the contact height position between the detection box 1 and the machine tool. The limit nut 13 limits the height of the screw 12 to prevent the slider 11 from falling off the screw 12, thereby improving safety. The detection box 1 is placed on the upper surface of the CNC machine tool. Through the cooperation of the pneumatic cylinder 2 and the pneumatic rod 3, the position between the vibration detector 4 and the vibration sensor 5 and the magnifying head 8 is adjusted. The magnifying head 8 drives the detection head 7 to naturally fall at the movable hole 6 under its own gravity. When the surface of the machine tool is tilted, it can ensure that a part of the detection head 7 is in a state of just contact with the surface of the machine tool. Multiple detection heads 7 increase the scope of detection and improve applicability. When the machine tool produces abnormal vibration, it will drive the detection head 7 to vibrate, and the magnifying head The amplified signal of 8 contacts the vibration sensor 5, and finally transmits the signal to the vibration detector 4 for detection. When the machine tool is flat, ensure that the detection head 7 is in a state of just contact with the surface of the machine tool for better detection. The observation window 9 can better observe the position of the internal components of the detection box 1, which is convenient for control and adjustment. The mounting block 15 can be fixed on the stabilizing block 16, which is convenient for fixing and installing the motor 14. The stabilizing block 16 stabilizes the center of gravity. The installation room 17 can be installed with a storage block 18 to ensure that the equipment can store electricity and store electricity for normal operation. The protective door 19 can protect the safety of the internal components of the installation room 17 to avoid exposure to external damage and improve safety. The heat dissipation seam 20 can help dissipate heat and cool down, extend the service life of the components, and the anti-slip pad 21 increases the contact area with the ground, improves friction, avoids sliding, and causes detection data errors.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An abnormal vibration detection device for a numerically controlled machine tool, comprising a detection box (1), characterized in that: The inner top wall of the detection box (1) is fixedly connected to a pneumatic cylinder (2), the lower surface of the pneumatic cylinder (2) is movably connected to a pneumatic rod (3), one end of the pneumatic rod (3) is fixedly connected to a vibration detector (4), and the lower surface of the vibration detector (4) is fixedly connected to a vibration sensor (5); The lower surface of the detection box (1) is provided with a movable hole (6), the number of the movable holes (6) is multiple, and the multiple movable holes (6) are arranged in the form of a rectangular array, the inner side wall of the movable hole (6) is movably overlapped with a detection head (7), the upper surface of the detection head (7) is fixedly connected with an enlargement head (8), and the size of the enlargement head (8) is larger than the size of the movable hole (6).

2. The abnormal vibration detection device for CNC machine tools according to claim 1, characterized in that: An observation window (9) is provided on the front surface of the detection box (1).

3. The abnormal vibration detection device for CNC machine tools according to claim 1, characterized in that: The detection box (1) has a surface fixedly connected to an electric telescopic rod (10), one end of the electric telescopic rod (10) is fixedly connected to a slider (11), a screw rod (12) is symmetrically arranged in the middle of the slider (11), and the top end of the screw rod (12) is fixedly connected to a limiting nut (13).

4. The abnormal vibration detection device for a CNC machine tool according to claim 3, characterized in that: The lower surface of the screw rod (12) is fixedly connected to a motor (14), and the outer surface of the motor (14) is fixedly connected to a mounting block (15).

5. The abnormal vibration detection device for a CNC machine tool according to claim 4, characterized in that: The lower surface of the mounting block (15) is fixedly connected to a stabilizing block (16), the front surface of the stabilizing block (16) is provided with a mounting chamber (17), and the inner bottom wall of the mounting chamber (17) is fixedly connected to a power storage block (18).

6. The abnormal vibration detection device for a CNC machine tool according to claim 5, characterized in that: The front surface of the installation chamber (17) is hingedly connected to a protective door (19), and the side surface of the installation chamber (17) is symmetrically provided with heat dissipation slots (20).

7. The abnormal vibration detection device for a CNC machine tool according to claim 5, characterized in that: An anti-slip pad (21) is fixedly connected to the lower surface of the stabilizing block (16).

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