A dynamic balance test system for CNC machine tool tools

By adopting a unique clamping system and automatic control technology in the CNC machine tool dynamic balance test machine, the problems of inconvenience in disassembly, low testing efficiency and inability to cooperate with multiple tool diameters in the existing technology are solved, and a more efficient and safer tool dynamic balance test is achieved.

CN118936735BActive Publication Date: 2025-04-04NANTONG TONGLI METAL TECH CO LTD
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Patent Information

Application Number
CN202411117483.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-04-04
Estimated Expiration
2044-08-15

AI Technical Summary

Technical Problem

The existing CNC machine tool dynamic balance test machines have problems such as inconvenience in disassembly and assembly, low testing efficiency and inability to cooperate with various tool diameters, especially when the diameter of the tool rod and the test frame are large, there is a risk of flying knives.

Method used

A CNC machine tool dynamic balance testing machine is designed, adopting a unique clamping system, including tool sleeve, clamping handle and protruding head, fixing the tool by centrifugal force, and stable clamping of tools of different diameters is achieved through the cooperation of the transverse guide slider and the longitudinal slider.

Benefits of technology

It improves the stability of the tool when rotating at high speed, enhances the accuracy and efficiency of testing, simplifies the tool replacement process, and ensures the safety and reliability of the equipment through automatic control and sensor monitoring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a dynamic balancing test system for a CNC machine tool tool, and specifically relates to the field of dynamic balancing test for a CNC machine tool tool. The system comprises a controller, a motor, an integral bracket and a clamping system. The controller, the motor and the clamping system are installed on the integral bracket. A tool tray, a tool sleeve, a plurality of transverse clamping rails, a plurality of transverse guide slide blocks, a plurality of longitudinal slide blocks, a plurality of clamping handles and a plurality of supporting wheels are arranged inside the clamping system. In the invention, a worker places a machine tool tool to be dynamically balanced after processing in the tool sleeve, presses the tool to lower the tool tray, and after the tool tray is lowered, the tool can be clamped at the center of the tool sleeve through the mechanical structure inside the clamping system. Then, the series switch is pressed by both hands, and the device automatically performs a dynamic balancing test for the tool. The controller analyzes the reading of the sensor, and lights an indicator light if the test result does not meet the standard.
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Description

Technical Field

[0001] The present invention relates to the field of dynamic balance testing of a CNC machine tool tool, and more specifically, to a dynamic balance testing system of a CNC machine tool tool. Background Art

[0002] The dynamic balance performance of CNC machine tool tools is one of the important indicators of tools. Dynamic balance refers to the ability of the tool to maintain a stable rotation state when rotating at high speed. If the dynamic balance performance of the tool does not meet the standard, it may shorten the tool life, reduce the processing quality, and even cause damage to the tool. Therefore, dynamic balancing test of CNC machine tool tools is an essential process before the tool is used. The dynamic balancing test of CNC machine tool tools is mainly completed by the dynamic balancing test machine of CNC machine tool tools. Testing the dynamic balancing test machine of CNC machine tool tools can find defects in the dynamic balance of the tool, reduce the risk of mechanical processing, and protect the safety of mechanical processing personnel and mechanical processing equipment.

[0003] The existing CNC machine tool tool dynamic balancing tester has the following shortcomings: either the chuck is tightened with bolts, or a test frame that matches the clearance of the tool rod diameter is used. The first method has the disadvantages of inconvenient disassembly and assembly, and low efficiency of multi-tool testing; the other is that it cannot match a variety of tool diameters. When the clearance between the tool rod diameter and the test frame is large and there is a dynamic balance problem, there is a risk of flying tools.

[0004] In order to solve the defects of the above two devices, a technical solution is now provided. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a dynamic balancing test system for a CNC machine tool to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A CNC machine tool tool dynamic balancing tester comprises a device housing, a clamping system is arranged inside the device housing, an integral bracket is fixedly connected to the bottom of the device housing, and a controller is arranged on the integral bracket, and is characterized in that:

[0008] A tool sleeve is arranged inside the clamping system, a top cover is fixed above the tool sleeve, a tool tray is arranged at the bottom of the tool sleeve, the tool tray is arranged on a base plate, the tool tray is slidably connected to the base plate, a clamping handle is arranged inside the clamping system, a protruding head is arranged on the clamping handle, and the protruding head clamps the tool in the tool sleeve under the action of the centrifugal force generated by the rotation of the clamping system.

[0009] In a preferred embodiment, the described CNC machine tool tool dynamic balancing testing machine is characterized in that: a plurality of transverse slider guide rails and a plurality of handle guide rail fixing seats are arranged on the bottom plate of the clamping system, a plurality of transverse guide sliders are slidably connected around the tool tray, the transverse slider guide is slidably connected to a transverse guide slider, a longitudinal slider is slidably connected to the middle of the transverse guide slider, the longitudinal slider is arranged between the transverse slider guide and the handle guide fixing seat, a handle is slidably connected to the top of the longitudinal slider, the handle is arranged in the handle guide rail, and the handle guide rail is arranged on the handle guide fixing seat.

[0010] In a preferred embodiment, the CNC machine tool tool dynamic balancing testing machine is characterized in that: a support wheel is arranged between the device housing and the clamping system, the support wheel is fixed on the support wheel bracket, a pressure sensor is arranged on the support wheel bracket, a motor is arranged at the bottom of the clamping system, the motor is fixedly connected to the clamping system, a plurality of series switches are arranged on the support frame, a device top cover is arranged on the top of the device housing, and a distance sensor is arranged between the transverse guide slider and the inner wall of the clamping system.

[0011] In a preferred embodiment, the CNC machine tool tool dynamic balancing tester is characterized in that: the clamping handle includes an external clamping handle, a middle clamping handle is arranged inside the external clamping handle, an internal clamping handle is arranged inside the middle clamping handle, and the protruding head is slidably matched with the tool sleeve.

[0012] In a preferred embodiment, the CNC machine tool tool dynamic balancing tester is characterized in that: the controller includes:

[0013] The information collection module is used to detect the status of the equipment when it is put into use and when it is working, and to record the readings of each sensor when the equipment is running;

[0014] The processing module calculates the data collected by the information collection module, generates stability parameters and speed coefficients, and sends the stability coefficients and speed coefficients to the calculation module;

[0015] The calculation module performs joint calculation on the data processed by the processing module, generates a tool evaluation coefficient and sends it to the control module;

[0016] The control module lights up the corresponding indicator light according to the tool evaluation coefficient, controls the motor speed change rate according to the speed change coefficient, and determines whether the equipment stops running according to the stability parameter.

[0017] In a preferred embodiment, the CNC machine tool tool dynamic balancing tester is characterized in that the controller control process includes the following steps:

[0018] S1: Information collection module, which collects equipment information in real time, including the distance between each lateral guide slider and the inner wall of the clamping system, the pressure on each support wheel, and sends the data to the processing module. If the sensor is abnormal, the indicator light will be turned on;

[0019] S2: The processing module performs preliminary processing on the parameters collected by the acquisition module and sends the processing results to the calculation module;

[0020] S2.1: When starting the equipment, do not put in the tool, start the motor through the series switch, and you can get the initial stability parameters of the equipment:

[0021]

[0022] In the formula are the distances between each transverse guide slider and the housing, They are the instantaneous readings of the pressure sensor on the support wheel, They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. are greater than 0, and Greater than ;

[0023] S2.2: When using the equipment, insert the tool and wait for the worker to start the motor to obtain the stability parameters of the equipment during operation:

[0024]

[0025] In the formula is the force exerted by the tool on the tool tray, are the distances between each transverse guide slider and the housing, They are the instantaneous readings of the pressure sensor on the support wheel, They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. are greater than 0, and Greater than ;

[0026] S2.3: When working, a speed coefficient is required to control the speed change rate of the clamping system:

[0027]

[0028] In the formula, They are the instantaneous readings of the pressure sensor on the support wheel, is the preset device jitter coefficient, and >0;

[0029] S3: The calculation module calculates the information sent by the processing module to obtain:

[0030] S3.1: Tool evaluation coefficient :

[0031]

[0032] In the formula is the current clamping system speed, It is a data set that uses different data at different speeds for calculation;

[0033] S4: The control module controls the device:

[0034] S4.1: The control module uses the speed coefficient to control the motor speed. The motor speed is controlled according to the predetermined gear. During the speed switching process, the acceleration of the motor speed is controlled according to the speed coefficient. The larger the speed coefficient, the greater the acceleration.

[0035] S4.2: The control module uses the tool evaluation coefficient to light up the corresponding indicator light, sets a threshold range for the result of the tool dynamic balance test, and lights up the corresponding indicator light according to the threshold range where the tool evaluation coefficient is located;

[0036] S4.3: The management module uses the stability parameter to control whether the motor stops running. When the stability parameter changes by more than the first threshold, the motor is turned off to make the device stop automatically, and the corresponding indicator light is turned on. When the stability parameter is greater than the second threshold, the motor is stopped and braked, and the corresponding indicator light is turned on.

[0037] Technical effects and advantages of the invention:

[0038] 1. In the present invention, when the CNC machine tool tool dynamic balancing tester is used, the tool is placed on the tool tray at the lower side of the tool sleeve. The tool tray will push the transverse guide slider to the surrounding under the downward pressure of the tool. Under the action of the transverse guide slider, the longitudinal slider and the clamping handle, the extended head of the clamping handle can clamp the tool in the tool sleeve. As the equipment starts, the tool will be fixed more firmly under the action of centrifugal force, and when the equipment stops, the lateral pressure on the tool is small, so it is easy to take out.

[0039] 2. In the present invention, when the CNC machine tool tool dynamic balancing tester is used, the extended end of the clamping handle has a large range of motion and can clamp tools of different types. When an abnormality occurs, the device will stop automatically to ensure safety.

[0040] 3. In the present invention, when the CNC machine tool tool dynamic balancing tester is used, the worker only needs to put the tool into the tool sleeve and press it down, and then press the switch on the equipment with both hands, which can avoid errors caused by manual disassembly and assembly of the tool, reduce manpower and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0042] Figure 1 A schematic diagram of the structure of a CNC machine tool dynamic balancing test machine and a control system proposed by the present invention;

[0043] Figure 2 A top view of a CNC machine tool dynamic balancing test machine proposed by the present invention with the cover of the device removed;

[0044] Figure 3 A schematic diagram of a clamping system of a CNC machine tool dynamic balancing test machine proposed by the present invention in a clamping state;

[0045] Figure 4 A schematic diagram of a clamping system of a CNC machine tool dynamic balancing tester proposed by the present invention when the clamping system is in an unclamped state;

[0046] Figure 5 The present invention is a system flow chart of a CNC machine tool dynamic balancing test machine and a control system.

[0047] In the figure: 1. fine-tuning screw; 2. controller; 3. series switch 1; 4. top cover; 5. equipment top cover; 6. equipment housing; 7. series switch 2; 8. motor; 9. integral bracket; 10. tool sleeve; 11. distance sensor; 12. support rail; 13. support wheel; 14. support wheel bracket; 15. handle rail; 16. handle rail fixing seat; 17. horizontal slider rail; 18. extension head; 19. tool tray; 20. horizontal guide slider; 21. middle handle; 22. internal handle; 23. external handle; 24. longitudinal slider; 25. tray support rod; 26. indicator light. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] Please refer to Figure 1-4 The following is a CNC machine tool dynamic balancing tester, and its use process is as follows

[0051] It includes a clamping system, which is arranged in the device housing 6. The bottom of the device housing 6 is fixedly connected to an integral bracket 9, and the integral bracket 9 is provided with a controller 2. It is characterized in that:

[0052] A tool sleeve 10 is arranged inside the clamping system, a top cover 4 is fixed above the tool sleeve 10, a tool tray 19 is arranged at the bottom of the tool sleeve 10, the tool tray 19 is arranged on the bottom plate of the clamping system, the tool tray 19 is slidably connected to the bottom plate of the clamping system, a clamping handle is arranged inside the clamping system, and an extension head 18 is arranged on the clamping handle, and the extension head 18 clamps the tool in the tool sleeve 10 under the action of the centrifugal force generated by the rotation of the clamping system.

[0053] The advantage of this design is that a unique clamping system is used to fix the tool, ensuring the stability of the tool during high-speed rotation. By utilizing the effect of centrifugal force, the tool is clamped more firmly in the tool sleeve 10, thereby improving the accuracy and efficiency of the tool dynamic balance test. At the same time, this design also makes the process of replacing the tool simpler and more convenient, and only the position of the extension head 18 needs to be adjusted to achieve rapid tool change. The use of the integral bracket 9 makes the entire device have good stability and durability. Through fine control by the controller 2, accurate testing of various tools can be achieved.

[0054] A plurality of transverse slider guide rails 17 and a plurality of handle guide rail fixing seats 16 are arranged on the bottom plate of the clamping system, a plurality of transverse guide sliders 20 are slidably connected around the tool tray 19, the transverse slider guide rail 17 is slidably connected to the transverse guide slider 20, a longitudinal slider 24 is slidably connected to the middle of the transverse guide slider 20, the longitudinal slider 24 is arranged between the transverse slider guide rail 17 and the handle guide rail fixing seat 16, a handle is slidably connected to the top of the longitudinal slider 24, the handle is arranged in the handle guide rail 15, and the handle guide rail 15 is arranged on the handle guide rail fixing seat 16.

[0055] The advantage of this design is that the clamping system composed of the lateral slider guide 17, the handle guide fixing seat 16 and other related components enhances its rigidity and vibration resistance, ensuring stable and reliable working conditions during high-speed rotation. By freely adjusting the position and angle of each component, tools of various diameters can be tested. The modular design concept makes assembly, disassembly and maintenance easier and faster, saving time and cost.

[0056] A support wheel 13 is arranged between the device housing 6 and the clamping system, the support wheel 13 is fixed on a support wheel bracket 14, a pressure sensor is arranged on the support wheel bracket 14, a motor 8 is arranged at the bottom of the clamping system, the motor 8 is fixedly connected to the clamping system, a plurality of series switches are arranged on the support bracket, a device top cover 5 is arranged on the top of the device housing 6, and a distance sensor 11 is arranged between the transverse guide slider 20 and the inner wall of the clamping system.

[0057] The advantage of this design is that the pressure sensor on the support wheel 13 can help accurately monitor the clamping pressure and accurately control the movement of the clamping system through the motor 8, thereby achieving a more stable test result. The series switch on the support frame can monitor the status of the equipment in real time and cut off the power supply in time when a problem occurs, effectively avoiding the occurrence of failures. By setting the distance sensor 11, the distance change between the lateral guide slider 20 and the inner wall of the clamping system can be monitored in real time, so that the controller 2 can judge the tool status more accurately.

[0058] The clamping handle comprises an external clamping handle 23 , a middle clamping handle 21 is disposed inside the external clamping handle 23 , an internal clamping handle 22 is disposed inside the middle clamping handle 21 , and the protruding head 18 is slidably matched with the tool sleeve 10 .

[0059] The advantage of this design is that the three sets of clamping handles clamp the tool in the tool sleeve 10 from three directions. The layered design can make the weight of the clamping handles consistent and the center of gravity of the clamping handles on the same layer, reducing the impact on the dynamic balance test.

[0060] Example 2

[0061] The controller 2 includes the following control modules:

[0062] The information collection module is used to detect the status of the equipment when it is put into use and when it is working, and to record the readings of each sensor when the equipment is running;

[0063] The processing module calculates the data collected by the information collection module, generates stability parameters and speed coefficients, and sends the stability coefficients and speed coefficients to the calculation module;

[0064] The calculation module performs joint calculation on the data processed by the processing module, generates a tool evaluation coefficient and sends it to the control module;

[0065] The control module lights up the corresponding indicator light 26 according to the tool evaluation coefficient, controls the speed change rate of the motor 8 according to the speed change coefficient, and determines whether the equipment stops running according to the stability parameter.

[0066] This controller 2 adopts a modular structure, each module has a clear division of labor, and is easy to maintain and update. Among them, the information acquisition module is responsible for real-time monitoring of the status of the equipment, and records the readings of each sensor when the equipment is running, which is convenient for subsequent data analysis and troubleshooting. The processing module will comprehensively process these data, generate stability parameters and speed coefficients, so as to better control the operating status of the equipment. The calculation module calculates based on these two parameters, generates a tool evaluation coefficient, and transmits it to the control module. The control module is the core part of the entire system. It will light up the corresponding indicator light 26 according to the received tool evaluation coefficient, and will also control the rate of change of the motor 8 speed according to the speed coefficient, and decide whether the equipment needs to stop running according to the stability parameter. This design not only realizes the automation and intelligent management of the equipment, but also greatly improves the work efficiency and safety and stability of the equipment.

[0067] The control process of the controller 2 includes the following control steps:

[0068] S1: Information collection module, which collects equipment information in real time, including the distance between each lateral guide slider 20 and the inner wall of the clamping system, the pressure on each support wheel 13, and sends the data to the processing module. If the sensor is abnormal, the indicator light 26 is turned on;

[0069] S2: The processing module performs preliminary processing on the parameters collected by the acquisition module and sends the processing results to the calculation module;

[0070] S2.1: When starting the equipment, without inserting the tool, start the motor 8 through the series switch, and the initial stability parameters of the equipment can be obtained:

[0071]

[0072] In the formula are the distances between each transverse guide slider 20 and the housing, are respectively the instantaneous readings of the pressure sensor on the support wheel 13, They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. are greater than 0, and Greater than ;

[0073] The application scenario of this formula is the calculation steps of the processing module when the equipment is in trial operation. The distance between each lateral guide slider 20 and the shell can determine whether the mechanical structure inside the equipment can operate. When the mechanical structure is stuck or there are foreign objects blocking the movement of the mechanical structure, this parameter reflects the problem. The instantaneous reading of the pressure sensor on the support wheel 13 is used to determine the stability of the mechanical structure itself. When the clamping system is deformed or the equipment has dents that cause the center of gravity to deflect, it will also cause the controller 2 to make abnormal judgments.

[0074] S2.2: When using the equipment, insert the tool, and after the worker starts the motor 8, the stability parameters of the equipment during operation can be obtained:

[0075]

[0076] In the formula is the force applied by the tool to the tool tray 19, are the distances between each transverse guide slider 20 and the housing, are respectively the instantaneous readings of the pressure sensor on the support wheel 13, They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. are greater than 0, and Greater than ;

[0077] The application scenario of this formula is the calculation steps of the processing module when the equipment performs tool testing. The force applied by the tool to the tool tray 19 can be regarded as whether the extension head 18 clamps the tool when the equipment is running. When the extension head 18 clamps the tool, the equipment is stable, and the value of this part is 1. The distance between each lateral guide slider 20 and the shell can determine whether the tool is in the center of the tool sleeve 10. When there is a problem with the placement of the tool, this parameter will reflect the problem. Under normal conditions, the value of this parameter is 0. The instantaneous reading of the pressure sensor on the support wheel 13 is used to judge the dynamic balance performance of the tool itself. The larger the result, the greater the problem with the tool.

[0078] S2.3: When working, a speed coefficient is required to control the speed change rate of the clamping system:

[0079]

[0080] In the formula, They are the instantaneous readings of the pressure sensor on the support wheel, is the preset device jitter coefficient, and >0;

[0081] If the motor 8 accelerates too fast, accidents may occur when the tool is not clamped. The denominator of this formula is used to determine whether the equipment is stable. When the equipment is stable, the larger the speed coefficient is;

[0082] S3: The calculation module calculates the information sent by the processing module to obtain:

[0083] S3.1: Tool evaluation coefficient :

[0084]

[0085] In the formula is the current clamping system speed, It is a data set that uses different data at different speeds for calculation;

[0086] The value of is taken from a self-increasing step function, which ensures that the tool evaluation coefficient can truly reflect the dynamic balance state of the tool in different speed ranges.

[0087] S4: The control module controls the device:

[0088] S4.1: The control module uses the speed coefficient to control the speed of the motor 8. The speed of the motor 8 is controlled according to the predetermined gear. During the speed switching process, the acceleration of the speed of the motor 8 is controlled according to the speed coefficient.

[0089] S4.2: The control module uses the tool evaluation coefficient to light up the corresponding indicator light 26, sets a threshold interval for the result of the tool dynamic balance test, and lights up the corresponding indicator light 26 according to the threshold interval where the tool evaluation coefficient is located;

[0090] S4.3: The management module uses the stability parameter to control whether the motor 8 stops running. When the stability parameter changes beyond the first threshold, the motor 8 is turned off to make the device stop automatically, and the corresponding indicator light 26 is lit. When the stability parameter is greater than the second threshold, the motor 8 is stopped and braked, and the corresponding indicator light 26 is lit.

[0091] The control steps of the controller 22 are explained as detailed as possible below:

[0092] The first step is to collect information. When collecting information, the information collection module mainly collects the distance between each transverse guide slider 20 and the inner wall of the clamping system, and the pressure on each support wheel 13; the distance between each transverse guide slider 20 and the inner wall of the clamping system affects the stability of the system. If the distance between each transverse guide slider 20 and the inner wall of the clamping system is different, the equipment will shake violently when working, affecting the safety of the equipment; the reason for the change in the pressure on the support wheel 13 when the equipment is stable is that the tool is unstable, so the pressure on each support wheel 13 should be collected;

[0093] The second step is to debug the equipment. During the debugging process, the motor 8 and various sensors in the equipment are used. The sensors are read at different working speeds of the motor 8, and the stability parameter calculation formula is used for calculation. If the calculated result does not meet the threshold, the corresponding indicator light 26 is turned on. After seeing the indicator light 26 light up, the worker rotates the balancing screw in the debugging hole and then tests the equipment again. If the test still does not meet the threshold, it can continue to be adjusted until the clamping system itself is stable, and then the subsequent steps can be started.

[0094] The third step is to insert the tool after the equipment performance meets expectations, and then perform a dynamic balance test on the tool. When the tool is placed in the prop sleeve, in the absence of centrifugal force, the clamping force of the middle clamping handle 21 on the tool is very weak, which can easily cause danger. Therefore, this feature is taken into consideration when designing the formula, and the pressure value of the tool tray 19 is added to the formula. When the clamping system rotates, the clamping force provided by the middle clamping handle 21 increases, and the pressure on the tool tray 19 decreases, and the system tends to be stable.

[0095] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0096] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0097] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0098] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0099] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0100] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0101] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A CNC machine tool tool dynamic balancing tester, comprising a device housing (6), a clamping system is arranged inside the device housing (6), an integral bracket (9) is fixedly connected to the bottom of the device housing (6), and a controller (2) is arranged on the integral bracket (9), characterized in that: A tool sleeve (10) is arranged inside the clamping system, a top cover (4) is fixed above the tool sleeve (10), a tool tray (19) is arranged at the bottom of the tool sleeve (10), the tool tray (19) is arranged on a bottom plate, the tool tray (19) is slidably connected to the bottom plate, a clamping handle is arranged inside the clamping system, a protruding head (18) is arranged on the clamping handle, and the protruding head (18) clamps the tool in the tool sleeve (10) under the action of the centrifugal force generated by the rotation of the clamping system; A plurality of transverse slider guide rails (17) and a plurality of handle guide rail fixing seats (16) are arranged on the bottom plate of the clamping system; a plurality of transverse guide sliders (20) are slidably connected around the tool tray (19); the transverse slider guide rail (17) is slidably connected to the transverse guide slider (20); a longitudinal slider (24) is slidably connected to the middle of the transverse guide slider (20); the longitudinal slider (24) is arranged between the transverse slider guide rail (17) and the handle guide rail fixing seat (16); a handle is slidably connected to the top of the longitudinal slider (24); the handle is arranged in the handle guide rail (15); and the handle guide rail (15) is arranged on the handle guide rail fixing seat (16); A support wheel (13) is arranged between the device housing (6) and the clamping system, the support wheel (13) is fixed on a support wheel bracket (14), a pressure sensor is arranged on the support wheel bracket (14), a motor (8) is arranged at the bottom of the clamping system, the motor (8) is fixedly connected to the clamping system, a plurality of series switches are arranged on the bracket, a device top cover (5) is arranged on the top of the device housing (6), and a distance sensor (11) is arranged between the transverse guide slider (20) and the inner wall of the clamping system.

2. A CNC machine tool tool dynamic balancing tester according to claim 1, characterized in that: The clamping handle comprises an external clamping handle (23), a middle clamping handle (21) is arranged inside the external clamping handle (23), an internal clamping handle (22) is arranged inside the middle clamping handle (21), and the protruding head (18) is slidably matched with the tool sleeve (10).

3. The CNC machine tool tool dynamic balancing tester according to claim 1, characterized in that: The controller (2) comprises the following control modules: The information collection module is used to detect the status of the equipment when it is put into use and when it is working, and to record the readings of each sensor when the equipment is running; The processing module calculates the data collected by the information collection module, generates stability parameters and speed coefficients, and sends the stability coefficients and speed coefficients to the calculation module; The process of obtaining the stability parameters is as follows: When starting the equipment, without inserting a tool, the motor (8) is started by connecting a series switch, and the initial stability parameters of the equipment can be obtained: ; In the formula , , are respectively the distances between each transverse guide slider (20) and the housing, , , are respectively the instantaneous readings of the pressure sensor on the support wheel (13), , They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. , are greater than 0, and Greater than ; When the equipment is in use, the tool is inserted and the worker starts the motor (8), and then the stability parameters of the equipment during operation can be obtained: ; In the formula is the force applied by the tool to the tool tray (19), , , are respectively the distances between each transverse guide slider (20) and the housing, , , are respectively the instantaneous readings of the pressure sensor on the support wheel (13), , They are the preset proportional coefficients of the internal structural stability parameters of the clamping system and the runout tolerance of the clamping system during operation. , are greater than 0, and Greater than ; The process of obtaining the speed coefficient is as follows: When working, a speed coefficient is required to control the speed change rate of the clamping system: ; In the formula, , , are respectively the instantaneous readings of the pressure sensor on the support wheel (13), is the preset device jitter coefficient, and >0; The calculation module performs joint calculation on the data processed by the processing module, generates a tool evaluation coefficient and sends it to the control module; Tool evaluation factor The formula used to obtain is: ; In the formula is the current clamping system speed, It is a data set that uses different data at different speeds for calculation; The control module lights up the corresponding indicator light (26) according to the tool evaluation coefficient, controls the speed change rate of the motor (8) according to the speed change coefficient, and determines whether the equipment stops running according to the stability parameter.

4. A dynamic balancing test system, implemented by a CNC machine tool tool dynamic balancing test machine according to claim 3, characterized in that: The control process of the controller (2) includes the following control steps: S1: an information collection module, which collects equipment information in real time, including the distance between each lateral guide slider (20) and the inner wall of the clamping system, the pressure on each support wheel (13), and sends the data to the processing module. If the sensor is abnormal, the indicator light (26) is turned on; S2: a processing module, which performs preliminary processing on the parameters collected by the acquisition module, and sends the stability coefficient and speed coefficient generated by the processing result to the calculation module; S3: The calculation module calculates the information sent by the processing module to obtain the tool evaluation coefficient ; S4: The control module controls the device: S4.1: The control module uses the speed coefficient to control the speed of the motor (8), and the speed of the motor (8) is controlled according to the predetermined gear. During the speed switching process, the acceleration of the speed of the motor (8) is controlled according to the speed coefficient. The larger the speed coefficient, the greater the acceleration; S4.2: The control module uses the tool evaluation coefficient to light up the corresponding indicator light (26), sets a threshold interval for the result of the tool dynamic balance test, and lights up the corresponding indicator light (26) according to the threshold interval where the tool evaluation coefficient is located; S4.3: The management module uses the stability parameter to control whether the motor (8) stops running. When the stability parameter changes and exceeds a first threshold, the motor (8) is turned off to make the device stop automatically, and the corresponding indicator light (26) is lit. When the stability parameter is greater than a second threshold, the motor (8) is stopped and braked, and the corresponding indicator light (26) is lit.

Citation Information

Patent Citations

  • Centrifugal force clamping type lathe clamp

    CN104525996A

  • Dynamic balance testing device based on numerical control machine tool cutter

    CN114878075A