CN117798390A - Automatic production device for automobile bearings - Google Patents
Automatic production device for automobile bearings Download PDFInfo
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- CN117798390A CN117798390A CN202311846002.8A CN202311846002A CN117798390A CN 117798390 A CN117798390 A CN 117798390A CN 202311846002 A CN202311846002 A CN 202311846002A CN 117798390 A CN117798390 A CN 117798390A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000003754 machining Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000005299 abrasion Methods 0.000 claims description 24
- 239000000110 cooling liquid Substances 0.000 claims description 12
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to the field of bearing machining, in particular to an automatic production device for an automobile bearing, which comprises a machining data acquisition module for acquiring corresponding parameters in the running process of a numerical control lathe, and an instruction module, wherein the machining data acquisition module is connected with the machining data acquisition module and used for judging whether the current running condition accords with a standard according to parameter information output by the machining data acquisition module, and a state analysis module for determining an adjusting mode for the running condition of the numerical control lathe according to the difference value between the current running parameter and the standard running parameter and sending a corresponding instruction to a central control computer of the lathe according to the judging result of the state analysis module.
Description
Technical Field
The invention relates to the field of bearing machining, in particular to an automatic production device for an automobile bearing.
Background
The automobile bearing is an important part in automobile parts, and has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the motion process and ensuring the rotation precision, so that the machining precision of the bearing part is higher, and a machine tool is often adopted for machining, so that the bearing is important for the automatic control of the machine tool, and related machining equipment is valued.
For example, chinese patent publication No.: CN102744426a discloses an automatic production device for automobile bearings, which comprises a feeding mechanism, a clamping mechanism, a tool rest and a frame, wherein a mobile station is arranged on the frame, the tool rest is arranged on the mobile station, the automatic production device further comprises a controller, the tool rest comprises a first clamping piece and a second clamping piece, a first groove and a second groove are arranged on the first clamping piece, a third groove is arranged on the second clamping piece, the first groove, the second groove and the third groove are parallel to each other, different turning tools are respectively arranged in the first groove, the second groove and the third groove, and the controller controls the mobile station to move back and forth. The controller controls the movable table to move back and forth and left and right to drive the tool rest to move so as to finish tool changing and cutting.
However, the following problems are also present in the prior art: when facing a complex machining process, the numerical control lathe relies on manually setting parameters to complete adjustment and determination of the running state of the lathe, if the determined parameters deviate, the control efficiency of the working state of the lathe is low, the machining size of the bearing part does not meet the standard, and meanwhile, the hidden danger of damaging the cutter head is also caused.
Disclosure of Invention
Therefore, the invention provides an automatic production device for the automobile bearing, which is used for solving the problems that the prior art relies on manual parameter setting to finish the adjustment and the determination of the running state of a lathe, and the determined parameter has errors in the processing process of the bearing part.
In order to achieve the above object, the present invention provides an automatic production device for an automobile bearing, comprising:
the processing data acquisition module comprises a plurality of sensors, and corresponding parameters in the running process of the numerical control lathe are acquired through corresponding positions arranged on the numerical control lathe;
the state analysis module is connected with the processing data acquisition module and is used for judging whether the current running condition meets the standard according to the parameter information output by the processing data acquisition module and determining an adjusting mode aiming at the running condition of the numerical control lathe according to the difference value of the current running parameter and the standard running parameter;
the command module is connected with the state analysis module and used for sending a corresponding command to the central control computer of the lathe according to the judging result of the state analysis module so as to enable the central control computer of the lathe to adjust the operation parameters of the corresponding parts to corresponding values;
the sensor of the processing data acquisition module comprises a temperature sensor used for acquiring the temperature of cooling liquid, a speed sensor used for acquiring the feeding speed of the tool bit, a Hall sensor used for acquiring the rotating speed of a lathe spindle box, a position sensor used for acquiring the moving distance of the tool bit relative to the tool rest, a laser interference type vibration sensor used for acquiring the vibration frequency of the tool bit and a vision sensor used for acquiring the profile information of the tool bit.
Further, the state analysis module is used for judging whether the processing of the lathe for the bearing component in the preset time length meets the preset standard or not based on the comparison result of the vibration frequency of the tool bit acquired by the laser interference type vibration sensor in the preset operation time length of the lathe and the preset vibration frequency standard in the state analysis module;
the state analysis module is further used for carrying out secondary judgment on whether the machining of the bearing component meets the standard or not based on the rotating speed of the spindle box acquired by the machining data acquisition module when the machining of the bearing component is not in accordance with the preset standard, and determining an adjusting mode of the numerically controlled lathe based on the vibration frequency of the tool bit when the hidden danger exists in the machining of the bearing component in the current state.
Further, the method is characterized in that the state analysis module is provided with a plurality of adjustment modes aiming at the moving speed of the tool rest based on the difference value of the vibration frequency of the tool bit and the second preset vibration frequency set in the state analysis module when the working state of the current numerical control lathe aiming at the processing of the bearing part is judged to be not in accordance with the preset standard, and the adjustment values of the adjustment modes aiming at the moving speed of the tool rest are different.
Further, the state analysis module is provided with a plurality of adjustment modes aiming at the flow rate of the cooling liquid controlled and output by the lathe controller based on the adjusted moving speed of the tool bit, and the output quantity of the cooling liquid adjusted by each adjustment mode is different.
Further, the state analysis module determines clamping parameters for the cutter head based on the temperature of the cutter head and the abrasion condition of the cutter head acquired by the processing data acquisition module after the processing is finished under the condition that the moving adjustment of the cutter head is completed and the processing of the numerical control lathe for the bearing part is still judged to be not in accordance with a preset standard, wherein the clamping parameters comprise the clamping size and the clamping force for the cutter head; and the state analysis module determines the abrasion condition of the cutter head according to the variation of the contour area of the cutter head in the cutter head image information acquired by the processing data acquisition module.
Further, the state analysis module is provided with a plurality of adjusting modes aiming at the clamping size of the cutter head based on the abrasion parameters, and the lengths of the cutter head, which are adjusted by the adjusting modes, exposed out of the cutter rest are different.
Further, the wear parameter is obtained by the following formula:
M＝μ×(T/T0)+ω×(S/S0)
wherein M is a wear parameter, T is an actual temperature, T0 is a preset temperature, S is an actual contour area of the cutter head, S0 is an initial contour area of the cutter head, μ is a first weighting coefficient, ω is a first weighting coefficient, and μ+ω=1 is set.
Further, the state analysis module adjusts the clamping force of the tool bit based on the adjusted clamping size, a plurality of adjusting modes are arranged in the state analysis module, and the clamping forces obtained in the adjusting modes are different.
Further, when the state analysis module preliminarily determines that the machining of the bearing component does not meet the standard, a plurality of standard adjustment modes for the first preset vibration frequency and the second preset vibration frequency which are used as the determination reference are set on the basis of the rotating speed of the spindle box acquired by the machining data acquisition module, and the first preset vibration frequency and the second preset vibration frequency which are adjusted by the standard adjustment modes are different.
Further, the state analysis module re-determines whether the machining of the bearing component meets a preset standard based on the adjusted first preset vibration frequency and the second preset vibration frequency, and determines that the machining of the lathe for the bearing component does not meet the preset standard when the actual vibration frequency of the tool bit is greater than the first preset vibration frequency.
Compared with the prior art, the invention has the beneficial effects that the processing data acquisition module and the state analysis module are arranged, so that the state analysis module preliminarily judges whether the processing of the bearing part meets the preset standard according to the acquired vibration frequency, and judges whether the processing meets the standard or not based on the rotating speed of the spindle box when the processing is preliminarily judged to be not met, thereby improving the judging precision of the working state of the lathe and being beneficial to improving the stability and the flexibility of the processing of the bearing part of the numerical control lathe; meanwhile, the state analysis module is further used for determining the clamping size and the adjusting mode of the clamping force aiming at the cutter head based on the operation parameters of the cutter head when the hidden danger exists in the working of the lathe, so that the machining stability of the numerical control lathe on the bearing part is further improved, and the stability of the cutter head in the use process can be effectively improved through effective clamping of the cutter head, so that the protection efficiency of the lathe on the cutter head is effectively improved while the condition that the cutter head is damaged due to the fact that the cutter head is not contacted with the bearing part at a standard angle is avoided, the operation cost of the lathe is reduced, and the machining efficiency of the lathe on the bearing part is effectively improved.
Further, the state analysis module is used for comparing the vibration frequency of the tool bit acquired by the processing data acquisition module in the running process of the lathe with the preset vibration frequency standard in the state analysis module to judge whether the processing of the bearing component currently meets the preset standard or not, and can monitor whether the current processing state meets the standard or not in real time, and adjust the processing stability of the bearing component of the numerical control lathe in time under the condition that the processing data does not meet the standard, so that the processing precision of the bearing component is improved, the protection efficiency of the lathe for the tool bit is further improved while the condition that the tool bit is damaged by the bearing component due to the fact that the tool bit is not contacted with the bearing component at the standard angle is avoided, and the processing efficiency of the lathe for the bearing component is effectively improved while the running cost of the lathe is reduced;
the state analysis module is further used for carrying out secondary judgment on whether the machining of the bearing component meets the standard or not based on the rotating speed of the spindle box acquired by the machining data acquisition module when the machining of the bearing component is not met with the preset standard, and adjusting the operation parameters of the tool bit based on the vibration frequency of the tool bit when the hidden danger exists in the machining of the bearing component in the current state is judged, so that the stability of the machining of the bearing component by the numerical control lathe is further improved, the machining precision of the bearing component is improved, and the cost of manual adjustment is saved.
Further, the state analysis module is provided with a plurality of adjustment modes aiming at the moving speed of the tool rest based on the difference value of the vibration frequency of the tool bit and the second preset vibration frequency set in the state analysis module when the machining of the bearing component by the lathe is judged not to meet the preset standard, after adjustment, the state analysis module is provided with a plurality of adjustment modes aiming at the flow rate of the cooling liquid controlled and output by the central control computer of the lathe based on the moving speed of the tool bit after adjustment, the current machining state is judged again whether to meet the preset standard or not, if the current machining state does not meet the preset standard, the state analysis module records the current machining parameters, so that the protection efficiency of the lathe aiming at the tool bit is further improved, the running cost of the lathe is reduced, and meanwhile the machining efficiency of the lathe aiming at the bearing component is effectively improved.
Further, the state analysis module determines clamping parameters for the tool bit based on the temperature of the tool bit and the abrasion condition of the tool bit after finishing machining under the condition that the moving adjustment of the tool bit is completed and the machining of the lathe for the bearing part is still judged to be not in accordance with a preset standard; the state analysis module is provided with a plurality of dimension adjustment modes aiming at the clamping dimension of the tool bit based on the abrasion parameters, the abrasion parameters are determined by the formula M=mu× (T/T0) +omega× (S/S0), and the clamping force of the tool rest to the tool bit is adjusted based on the adjusted clamping dimension, so that the protection efficiency of the lathe aiming at the tool bit is further improved, the running cost of the lathe is reduced, and the processing efficiency of the lathe aiming at the bearing part is effectively improved.
Further, the state analysis module is used for adjusting the rotation speed of the spindle box based on the rotation speed of the spindle box when the machining of the lathe on the bearing component is not in accordance with the standard, and is used for judging whether the machining of the lathe on the bearing component is in accordance with the preset standard again based on the adjusted first preset vibration frequency and the adjusted second preset vibration frequency, and judging that the machining of the lathe on the bearing component is not in accordance with the preset standard when the actual vibration frequency of the tool bit is larger than the first preset vibration frequency, so that the protection efficiency of the lathe on the tool bit is further improved, the running cost of the lathe is reduced, and meanwhile the machining efficiency of the lathe on the bearing component is effectively improved.
Drawings
FIG. 1 is a block diagram of an automated production device for automotive bearings according to the present invention;
FIG. 2 is a flow chart of a preliminary determination of whether the vibration frequency of the tool bit meets a preset standard according to the present invention;
FIG. 3 is a flow chart of a secondary determination of whether the vibration frequency of the tool bit meets a preset standard according to the present invention;
FIG. 4 is a flow chart of the adjustment of the state analysis module according to the present invention for the case that the secondary decision is not met.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The above and further technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Please refer to fig. 1, which illustrates the present invention
The automatic production device for the automobile bearing is connected with each component of the numerical control lathe through the sensors of the processing data acquisition module to acquire the running state of the numerical control lathe, the instruction module is electrically connected with the lathe central control computer of the numerical control lathe, and an adjusting instruction for the lathe, which is obtained through analysis by the state analysis module, is issued to the lathe.
Referring to fig. 1, a block diagram of an automatic production device for automotive bearings according to the present invention includes a processing data acquisition module, a state analysis module and an instruction module;
the processing data acquisition module comprises a plurality of sensors, and corresponding parameters in the running process of the numerical control lathe are acquired through corresponding positions arranged on the numerical control lathe;
the state analysis module is connected with the processing data acquisition module and is used for judging whether the current running condition meets the standard according to the parameter information output by the processing data acquisition module and determining an adjusting mode aiming at the running condition of the numerical control lathe according to the difference value between the current running parameter and the standard running parameter;
the command module is connected with the state analysis module and is used for sending a corresponding command to the central control computer of the lathe according to the judging result of the state analysis module so as to enable the central control computer of the lathe to adjust the operation parameters of the corresponding parts to corresponding values;
the sensor of the processing data acquisition module comprises a temperature sensor used for acquiring the temperature of cooling liquid, a speed sensor used for acquiring the feeding speed of the tool bit, a Hall sensor used for acquiring the rotating speed of a lathe spindle box, a position sensor used for acquiring the moving distance of the tool bit relative to the tool rest, a laser interference type vibration sensor used for acquiring the vibration frequency of the tool bit and a vision sensor used for acquiring the profile information of the tool bit.
In particular, the present invention is not limited to the specific structure of the state analysis module and the processing data acquisition module, and may be formed of a logic component or a combination of logic components, where the logic component includes a field programmable part, a computer, or a microprocessor.
Specifically, the specific structure of the numerical control lathe is not limited, and the numerical control lathe is the prior art, and only needs to adjust the operation parameters of the cutter, and is not repeated.
Referring to fig. 2, a flowchart of a determination of whether the difference between the vibration frequency of the tool bit collected by the state analysis module during the operation of the lathe and the preset vibration frequency standard in the state analysis module meets the preset standard is shown by the state analysis module according to the present invention; for the vibration frequency of the cutter head, the state analysis module is provided with a judging mode for judging whether the difference value between the actual vibration frequency and the preset vibration frequency meets the standard, wherein,
the first judging mode is that the state analysis module preliminarily judges that the difference value of the actual vibration frequency and the preset vibration frequency meets the standard, and the numerical control lathe is qualified for the processing state of the bearing part; the first judging mode meets the condition that the difference value is smaller than a first preset difference value set in the state analysis module, and a first preset difference value S1=1kHz is set;
the second judging mode is that the state analysis module preliminarily judges that the difference value of the actual vibration frequency and the preset vibration frequency does not meet the standard, the processing state of the numerical control lathe on the bearing part is not the optimal state, and the state analysis module judges whether the current working state meets the standard or not based on the rotating speed of the spindle box; the second judging mode meets the condition that the difference value is larger than or equal to a first preset difference value set in the state analysis module and smaller than a second preset difference value set in the state analysis module, the second preset difference value is set to be larger than the first preset difference value, and the second preset difference value S2=5kHz;
the third judging mode is that the state analysis module judges that the difference value of the actual vibration frequency and the preset vibration frequency does not meet the preset standard and potential safety hazards exist in the current working state, the state analysis module determines the operation parameters of the numerical control lathe based on the vibration frequency of the tool bit, and a corresponding adjusting mode is adopted for the processing state based on the determined operation parameters; the third judging mode meets the condition that the difference value is larger than or equal to a second preset difference value set in the state analysis module.
Referring to fig. 3, a determination flow chart of the state analysis module according to the present invention for performing a secondary determination based on a difference between a tool bit vibration frequency and a second preset vibration frequency set in the state analysis module when it is determined that the machining of the bearing component by the lathe does not meet a preset standard; for the vibration frequency of the cutter head, the state analysis module is provided with a judging mode for judging whether the difference value between the actual vibration frequency and the second preset vibration frequency meets the standard, wherein,
the first one-to-one judging mode is that the state analysis module judges that the difference value between the actual vibration frequency and the second preset vibration frequency meets the standard; the first one-to-one judging mode meets the condition that the difference value is smaller than the difference value of the second preset vibration frequency, and the difference value S=3Khz of the second preset vibration frequency is set;
the first and second judging modes are that the state analysis module judges that the difference value of the actual vibration frequency and the second preset vibration frequency does not accord with the standard, the state analysis module is provided with an adjusting mode aiming at the moving speed of the tool rest when the second judging mode does not accord with the standard, and the instruction module controls the lathe controller to adjust; the first and second judging modes meet the condition that the difference value is larger than or equal to the difference value of the second preset vibration frequency.
Fig. 4 is a flow chart of the adjustment of the state analysis module according to the present invention for the case that the secondary determination is not in accordance with the standard; the state analysis module is provided with a regulating mode aiming at the flow of the cooling liquid based on the interval where the moving speed of the tool bit is positioned after regulating aiming at the condition that the secondary judgment is not in accordance with the standard, wherein,
the first adjusting mode is that the state analysis module compares the moving speed interval of the moving speed of the tool bit; the first adjusting mode meets the condition that the moving speed of the cutter head is in a first interval, the flow rate of the cooling liquid is increased by 1L/min, and the first interval is set to be 0.05m/s to 0.08m/s;
the second adjusting mode is that the state analysis module compares the moving speed interval of the moving speed of the tool bit; the second adjusting mode meets the condition that the moving speed of the cutter head is in a second interval, the flow rate of the cooling liquid is increased by 3L/min, and the second interval is set to be 0.08m/s to 0.11m/s;
the third adjusting mode is that the state analysis module compares the moving speed interval where the moving speed of the tool bit is; the third adjusting mode meets the condition that the moving speed of the cutter head is in a third interval, the flow rate of the cooling liquid is increased by 5L/min, and the third interval is set to be 0.11m/s to 0.14m/s;
with continued reference to fig. 1 to 4, the state analysis module of the present invention determines, when the adjustment of the movement of the tool bit is completed and it is still determined that the machining of the bearing component by the lathe does not meet the preset standard, a clamping parameter for the tool bit based on the temperature of the tool bit and the wear condition of the tool bit after the machining is completed, where the wear parameter is obtained by the following formula:
M＝μ×(T/T0)+ω×(S/S0)
wherein M is a wear parameter, T is an actual temperature, T0 is a preset temperature, S is an actual contour area of the cutter head, S0 is an initial contour area of the cutter head, μ is a first weighting coefficient, ω is a first weighting coefficient, μ is set equal to 0.53, ω is set equal to 0.47, μ+ω=1.
The state analysis module determines an adjustment for the clamping dimension and the clamping force of the tool head based on the determined wear parameters, wherein,
the first one-to-one adjustment mode is that the state analysis module compares the abrasion parameters of the cutter head with preset abrasion parameter adjustment standard intervals, and adjusts the length of the cutter head exposed out of the cutter rest and the clamping force of the cutter rest to the cutter head according to the comparison result; the first one-to-one adjustment mode meets the condition that the abrasion parameters are located in a first abrasion zone, the length of the cutter head exposed out of the cutter rest is reduced by 1mm, and the clamping force of the cutter rest to the cutter head is improved by 50N; setting the first abrasion section to be in a range of 0 to 2 of abrasion parameters;
the first two-step adjustment mode is that the state analysis module compares the abrasion parameters of the cutter head with preset abrasion parameter adjustment standard intervals, and adjusts the length of the cutter head exposed out of the cutter rest and the clamping force of the cutter rest to the cutter head according to the comparison result; the first and second adjusting modes meet the condition that the abrasion parameters are located in a second abrasion zone, the length of the cutter head exposed out of the cutter rest is reduced by 2mm, and the clamping force of the cutter rest to the cutter head is improved by 100N; setting the second abrasion section to be in a range of 2 to 3 of abrasion parameters;
the first three adjusting mode is that the state analysis module compares the abrasion parameters of the cutter head with preset abrasion parameter adjusting standard intervals, and adjusts the length of the cutter head exposed out of the cutter rest and the clamping force of the cutter rest to the cutter head according to the comparison result; the first three adjusting mode meets the condition that the abrasion parameter is located in a third abrasion zone, the length of the cutter head exposed out of the cutter rest is reduced by 3mm, and the clamping force of the cutter rest to the cutter head is improved by 200N; setting the third wear section to be the wear parameter greater than 3
With continued reference to fig. 1 to 4, the state analysis module of the present invention provides a plurality of standard adjustment modes for the first preset vibration frequency and the second preset vibration frequency as determination references based on the rotation speed of the headstock when it is preliminarily determined that the machining of the bearing component by the lathe does not meet the standard, wherein,
the second adjusting mode is that the state analysis module compares the rotating speed of the main shaft box with a preset standard rotating speed, and adjusts the first preset vibration frequency and the second preset vibration frequency according to the comparison result; the second adjusting mode meets the condition that the rotating speed of the main shaft box meets the preset standard, and adjustment is not needed; setting the preset rotating speed of the spindle box 2 to 1000 Vc/pi D;
the second adjusting mode is that the state analysis module compares the rotating speed of the main shaft box with a preset standard rotating speed, and adjusts the first preset vibration frequency and the second preset vibration frequency according to the comparison result; the second adjusting mode meets the condition that the rotating speed of the main shaft box is higher than the preset rotating speed of the main shaft box, and the first preset vibration frequency and the second preset vibration frequency are respectively increased by 5KHZ;
the second three adjusting mode is that the state analysis module compares the rotating speed of the main shaft box with a preset standard rotating speed, and adjusts the first preset vibration frequency and the second preset vibration frequency according to the comparison result; the second adjusting mode meets the condition that the rotating speed of the main shaft box is lower than the preset rotating speed of the main shaft box, and the first preset vibration frequency and the second preset vibration frequency are respectively reduced by 5KHZ;
thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automated production device for automotive bearings, comprising:
the processing data acquisition module comprises a plurality of sensors, and corresponding parameters in the running process of the numerical control lathe are acquired through corresponding positions arranged on the numerical control lathe;
the state analysis module is connected with the processing data acquisition module and is used for judging whether the current running condition meets the standard according to the parameter information output by the processing data acquisition module and determining an adjusting mode aiming at the running condition of the numerical control lathe according to the difference value of the current running parameter and the standard running parameter;
the command module is connected with the state analysis module and used for sending a corresponding command to the central control computer of the lathe according to the judging result of the state analysis module so as to enable the central control computer of the lathe to adjust the operation parameters of the corresponding parts to corresponding values;
the sensor of the processing data acquisition module comprises a temperature sensor used for acquiring the temperature of cooling liquid, a speed sensor used for acquiring the feeding speed of the tool bit, a Hall sensor used for acquiring the rotating speed of a lathe spindle box, a position sensor used for acquiring the moving distance of the tool bit relative to the tool rest, a laser interference type vibration sensor used for acquiring the vibration frequency of the tool bit and a vision sensor used for acquiring the profile information of the tool bit.
2. The automated production device of automotive bearings according to claim 1, wherein the state analysis module is configured to determine whether the machining of the bearing component by the lathe within a preset time period meets a preset standard based on a comparison result of a vibration frequency of the tool bit collected by the laser interference vibration sensor within the preset time period of the lathe and a vibration frequency standard preset in the state analysis module;
the state analysis module is further used for carrying out secondary judgment on whether the machining of the bearing component meets the standard or not based on the rotating speed of the spindle box acquired by the machining data acquisition module when the machining of the bearing component is not in accordance with the preset standard, and determining an adjusting mode of the numerically controlled lathe based on the vibration frequency of the tool bit when the hidden danger exists in the machining of the bearing component in the current state.
3. The automatic production device for the automobile bearings according to claim 2, wherein the state analysis module is provided with a plurality of adjustment modes aiming at the moving speed of the tool rest based on the difference value between the vibration frequency of the tool bit and the second preset vibration frequency set in the state analysis module when the working state of the current numerical control lathe aiming at the processing of the bearing parts is judged to be not in accordance with the preset standard, and the adjustment values of the adjustment modes aiming at the moving speed of the tool rest are different.
4. The automated production device for automotive bearings according to claim 3, wherein the state analysis module is provided with a plurality of adjustment modes for the flow rate of the cooling liquid controlled and outputted by the lathe controller based on the adjusted moving speed of the tool bit, and the output amounts of the cooling liquid adjusted by the adjustment modes are different.
5. The automatic production device for the automobile bearings according to claim 3, wherein the state analysis module determines clamping parameters for the cutter head based on the temperature of the cutter head and the abrasion condition of the cutter head acquired by the processing data acquisition module after the processing is finished, wherein the clamping parameters comprise clamping size and clamping force for the cutter head when the moving adjustment of the cutter head is completed and the processing of the bearing part by the numerical control lathe is still judged to be not in accordance with a preset standard; and the state analysis module determines the abrasion condition of the cutter head according to the variation of the contour area of the cutter head in the cutter head image information acquired by the processing data acquisition module.
6. The automated production device of automotive bearings according to claim 5, wherein the state analysis module is provided with a plurality of adjustment modes for the clamping size of the cutter head based on the wear parameters, and the lengths of the cutter heads adjusted by the adjustment modes exposed out of the cutter rest are different.
7. The automated production device of automotive bearings of claim 6, wherein the wear parameter is obtained by the following formula:
M＝μ×(T/T0)+ω×(S/S0)
wherein M is a wear parameter, T is an actual temperature, T0 is a preset temperature, S is an actual contour area of the cutter head, S0 is an initial contour area of the cutter head, μ is a first weighting coefficient, ω is a first weighting coefficient, and μ+ω=1 is set.
8. The automated production device of automotive bearings according to claim 7, wherein the state analysis module adjusts the clamping force of the cutter head based on the adjusted clamping size, wherein a plurality of adjustment modes are provided in the state analysis module, and the clamping forces obtained in the adjustment modes are different.
9. The automated production device for automotive bearings according to claim 2, wherein the state analysis module is provided with a plurality of standard adjustment modes for the first preset vibration frequency and the second preset vibration frequency serving as the determination reference based on the rotation speed of the headstock acquired by the processing data acquisition module when the processing for the bearing member is preliminarily determined not to meet the standard, and the first preset vibration frequency and the second preset vibration frequency adjusted by the standard adjustment modes are different.
10. The automated production device of automotive bearings according to claim 9, wherein the state analysis module re-determines whether the machining for the bearing component meets a preset standard based on the adjusted first preset vibration frequency and the second preset vibration frequency, and determines that the machining for the bearing component by the lathe does not meet the preset standard when the actual vibration frequency of the tool bit is greater than the first preset vibration frequency.
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