CN114986256B - Multifunctional finish machining roughness on-machine measuring device and measuring method - Google Patents
Multifunctional finish machining roughness on-machine measuring device and measuring method Download PDFInfo
- Publication number
- CN114986256B CN114986256B CN202210841408.6A CN202210841408A CN114986256B CN 114986256 B CN114986256 B CN 114986256B CN 202210841408 A CN202210841408 A CN 202210841408A CN 114986256 B CN114986256 B CN 114986256B
- Authority
- CN
- China
- Prior art keywords
- roughness
- measuring
- machine
- workpiece
- machine tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention belongs to the technical field of numerical control machining measurement, and particularly relates to a multifunctional finish machining roughness on-machine measuring device and a measuring method, which comprise a standard tool handle, a radial attitude adjusting mechanism and a multifunctional measuring unit; the radial posture adjusting mechanism comprises a driving base body, a fixed mounting seat and a plurality of sliding mounting seats, wherein the fixed mounting seat and the driving base body are used for mounting the multifunctional measuring unit; the standard knife handle is coaxially detachably connected with the other end of the driving base body. The measuring device has the characteristics of modularization, high efficiency, low cost, multiple functions, strong adaptability, high measuring precision and good consistency, and can finish the rapid measurement of the roughness of various key processing surfaces without a special measuring station or equipment after the key parts of the large-scale parts are processed.
Description
Technical Field
The invention belongs to the technical field of numerical control machining measurement, and particularly relates to a multifunctional finish machining roughness on-machine measuring device and a measuring method.
Background
Roughness is a core evaluation index of finish machining surface quality, key machining parts of large parts such as large pipe joints, valve bodies and engineering machinery, such as features of large-hole inner walls, outer cylindrical surfaces, large-size curved surfaces and the like, have large shapes and positions in space and large quantity, and large parts are large and complex in volume, so that the surface precision of the key part for measuring the posture is difficult to flexibly adjust like a single small part.
Currently, there are three types of roughness measurement methods for such large part finished parts: 1) The method is visual, quick and low in cost, has the same lowest precision, strong manual subjectivity and lower consistency and reliability of measurement results, and has more dangers when a large part is used; 2) The portable roughness meter is manually utilized to combine with auxiliary tool measurement and manual recording, so that the cost is low, the operation is convenient and rapid, but the measurement error and the uncertainty are large, the measurement range is small, and the efficiency is low due to the influence of the skill level of an operator; 3) The method is characterized in that a special measuring station is built, special equipment such as a gantry type three-coordinate measuring machine and a movable measuring robot is used for carrying a roughness meter, the key part of the large component is measured, the precision is high, the measuring process can be automated, the cost is high, the occupied area is large, the large component is transferred from a processing station to the measuring station, the position calibration in the measuring station is involved, and the like, and the time is wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multifunctional finish machining roughness on-machine measuring device and method, the measuring device has the characteristics of modularization, high efficiency, low cost, multifunction, strong adaptability, high measuring precision and good consistency, and can be used for rapidly measuring the roughness of various key machining surfaces without a special measuring station or equipment after the machining of key parts of large parts is finished.
The invention realizes the purpose through the following technical scheme:
a multifunctional finish machining roughness on-machine measuring device comprises a standard tool handle, a radial posture adjusting mechanism and a multifunctional measuring unit. The radial attitude adjusting mechanism comprises a driving base body, a fixed mounting seat and a plurality of sliding mounting seats connected to one end of the driving base body; the fixed mounting seats and the driving base body are coaxially arranged, and all the sliding mounting seats are arranged at intervals in the circumferential direction around the central shaft of the driving base body and can move in the radial direction under the action of the driving base body. The multifunctional measuring unit comprises a plurality of trigger type 3D measuring heads and a plurality of roughness measuring modules; the trigger type 3D measuring head is used for being in one-to-one corresponding detachable connection with the fixed mounting seat or the sliding mounting seat, and the roughness measuring module is used for being in one-to-one corresponding detachable connection with the fixed mounting seat or the sliding mounting seat; the standard knife handle is coaxially detachably connected with the other end of the driving base body.
Preferably, four sliding installation seats which are arranged at equal intervals are connected to the driving base body.
Preferably, the driving base body comprises a mounting base and an encapsulation bottom shell, a connecting disc for connecting a standard knife handle is arranged at one end of the mounting base, and a plurality of radial sliding grooves for mounting the sliding mounting seats in one-to-one correspondence are formed in the bottom of the encapsulation bottom shell; the encapsulation bottom shell is coaxially and fixedly connected with one end of the mounting base and is matched with the mounting base to form a driving cavity, and a driving mechanism used for controlling the sliding mounting base to move is arranged in the driving cavity.
Preferably, the driving mechanism comprises a driving control circuit, a gear, and a crossed roller bearing, a gear ring and a driving disc which are coaxially arranged with the mounting base in sequence; the outer ring of the crossed roller bearing is fixedly connected with the mounting base, the inner ring of the crossed roller bearing is fixedly connected with a driving disc through a gear ring, a gear is mutually meshed with the gear ring, and involute chutes which are in one-to-one correspondence with the sliding mounting seats are arranged on the driving disc; the drive control circuit is arranged on the mounting base and used for providing rotary power for the gear.
Preferably, the drive control circuit comprises a servo speed reduction motor, a motor drive module, a battery and a master controller, wherein the master controller is used for controlling the multifunctional measuring unit to acquire corresponding detection data and upload the detection data to the numerical control system of the machine tool and the servo speed reduction motor controlled in a closed loop manner; the servo speed reducing motor is electrically connected with the master controller through the motor driving module, and a rotating shaft of the servo speed reducing motor is in transmission connection with the gear; the battery is used for providing working power supply for the drive control circuit and the multifunctional measuring unit.
Preferably, the roughness measuring module comprises an axial moving mechanism, a measuring head rod and a measuring rod shaking limiting sleeve, and a return spring is coaxially arranged inside the measuring rod shaking limiting sleeve; one end of the axial moving mechanism is used for connecting the sliding mounting seat, and the measuring rod shaking limiting sleeve is coaxially and fixedly connected with the other end of the axial moving mechanism; two sides of the measuring rod shaking limiting sleeve are respectively provided with a trigger switch, two trigger switches of the same measuring rod shaking limiting sleeve are positioned in the same radial direction of the driving base body, and the trigger switches are electrically connected to the main controller and are used for being matched with the main controller to control the roughness measuring module to work; the roughness probe is installed to the one end of measuring head pole, and the other end axial of measuring head pole inserts the measuring rod and rocks limit sleeve to rock limit sleeve swing joint through reset spring and axial moving mechanism or measuring rod.
Preferably, the roughness probe is in an annular symmetrical conical surface structure.
Preferably, the fixed mounting seat is arranged at the axis of the driving base body, one end of the fixed mounting seat is fixedly connected with the mounting base, and the other end of the fixed mounting seat penetrates through the packaging bottom shell; the driving disk and the packaging bottom shell are in clearance fit with the fixed mounting seat respectively.
Preferably, the slidable mounting seat includes the screens board, is used for connecting the connecting plate that triggers formula 3D gauge head or roughness measurement module and runs through and sets up in the inside slider of radial spout, and screens board and connecting plate are connected respectively at the slider both ends, be provided with on the screens board be used for with involute spout complex traveller.
Based on the multifunctional finish machining roughness on-machine measuring device, the technical scheme provides a finish machining roughness on-machine measuring method, which comprises the following steps:
s1, cutter resetting: after the numerical control finish machining of the workpiece is finished, controlling a main shaft of the machine tool to return the tool to a tool changing position of the machine tool by using a machine tool numerical control system;
s2, device installation and communication establishment: the method comprises the following steps of (1) disassembling a cutter used for machining a workpiece on a main shaft, installing a driving base body of an on-machine measuring device on the main shaft through a standard cutter handle, and establishing communication connection between the on-machine measuring device and a numerical control system of a machine tool;
s3, measuring the size of the workpiece: installing a trigger type 3D measuring head on the driving base body, acquiring size information of a measured part of a workpiece by using the trigger type 3D measuring head, and uploading the size information of the measured part of the workpiece to a machine tool numerical control system;
s4, roughness data acquisition: replacing a trigger type 3D measuring head on a driving base body with a roughness measuring module, adjusting the working position of the roughness measuring module according to the size information of the measured part of the workpiece, measuring the roughness of the measured part of the workpiece by using the roughness measuring module, and uploading the measured roughness data to a machine tool numerical control system;
s5, acquiring a roughness value and resetting an on-machine measuring device: and after the roughness data are acquired, controlling the on-machine measuring device to reset, and calculating an average roughness value by using a machine tool numerical control system based on the received roughness data, namely finishing the roughness measurement of the measured part of the current workpiece.
Preferably, the finish machining roughness on-machine measuring method comprises independent measurement and cooperative measurement, and based on the measurement, in the step S3, the workpiece dimension measurement comprises the following steps:
s31, determining a measurement mode, and selecting to adopt independent measurement or matched measurement according to the space constraint condition of the measured part of the workpiece;
s32, initializing the working radius of the on-machine measuring device: when the matched measurement is adopted, the axis of the fixed mounting seat is taken as the position of the initial working radius, namely the initial working radius is zero; when the matched measurement is adopted, the machine tool control system controls the driving base body to move the sliding installation seat to the position farthest from or closest to the central axis of the driving base body, and the distance between the axis of the sliding installation seat and the axis of the driving base body is used as an initial working radius;
s33, mounting a measuring head: when independent measurement is adopted, a trigger type 3D measuring head is installed on the fixed installation seat; when the matched measurement is adopted, a trigger type 3D measuring head is installed on the sliding installation seat;
s34, size measurement: the main shaft is controlled by a machine tool numerical control system to move the driving base body provided with the trigger type 3D measuring head to a workpiece, and the size information of the measured part of the workpiece is obtained in a mode of controlling the trigger type 3D measuring head to be in contact with the workpiece in a moving mode; when independent measurement is adopted, the machine tool numerical control system controls a machine tool main shaft to synchronously move and rotate with an on-machine measuring device so as to enable the trigger type 3D measuring head to be in contact with a workpiece; when the matched measurement is adopted, the machine tool numerical control system controls the trigger type 3D measuring head to move radially through the driving base body of the on-machine measuring device so as to contact with a workpiece, and during the period, the machine tool numerical control system records the change of the working radius of the on-machine measuring device;
and S35, uploading the obtained size information of the measured part of the workpiece to a numerical control system of the machine tool through the driving base body.
Preferably, in step S4, the roughness data acquisition includes the following steps:
s41, replacing a measuring head: controlling a main shaft of the machine tool by using a numerical control system of the machine tool to return the driving base body provided with the trigger type 3D measuring head to a tool changing position of the machine tool, and changing the trigger type 3D measuring head into a roughness measuring module;
s42, a moving path of the on-machine measuring device is set as follows: calling a machining coordinate system and a safety bit coordinate during the finish machining of a measured part of a workpiece by using a machine tool numerical control system, combining the coordinate information of the measured part of the workpiece, taking the safety bit coordinate as a starting point, and sequentially setting a deceleration bit and a buffer bit between the safety bit coordinate and the measured area of the workpiece;
s43, updating the working radius: the machine tool numerical control system acquires the working radius of the roughness measuring module based on the combination of the final working radius of the on-machine measuring device and the structural characteristics of the roughness measuring module, wherein the working radius of the roughness measuring module is the distance between the corresponding trigger switch and the axis of the on-machine measuring device; when the independent measurement is adopted, the axis of the on-machine measuring device is the final working radius position of the on-machine measuring device, and when the cooperative measurement is adopted, the machine tool numerical control system obtains the final working radius of the on-machine measuring device based on the working radius change of the on-machine measuring device recorded in the step S34;
s44, eliminating the position interference between the roughness probe and the workpiece to be detected: when independent measurement is adopted, position interference elimination operation is not required; when the matched measurement is adopted, the characteristic radius in the size information of the measured part of the workpiece is called by using a machine tool numerical control system, meanwhile, the working radius position of the roughness probe is obtained by combining the structural characteristic of the roughness measurement module and the working radius of the roughness measurement module, whether the roughness probe and the measured workpiece have interference or not is judged by combining the characteristic radius of the measured part of the workpiece and the working radius position of the roughness probe, if the interference exists, the machine tool numerical control system returns to the step S43 after driving the base body to control the sliding mounting seat to move synchronously with the on-machine measuring device, and if the interference does not exist, the step S45 is executed;
s45, the machine tool numerical control system calculates the radial adjusting distance of the roughness measuring module based on the characteristic radius of the measured part of the workpiece and the working radius of the roughness measuring module;
s46, moving the roughness measuring module to the position: moving the driving base body provided with the roughness measuring module to a workpiece by utilizing a machine tool numerical control system to correspond to the safety position coordinate, the deceleration position and the slow carry control main shaft in the step S42, so that the roughness probe is positioned at the measured part of the workpiece;
s47, roughness detection: when independent measurement is adopted, the machine tool numerical control system controls the machine tool spindle to synchronously move with the on-machine measuring device on the basis of the radial adjusting distance calculated in the corresponding step S45, so that the trigger switch is contacted with the workpiece and is switched on; when the cooperative measurement is adopted, the machine tool numerical control system controls the sliding mounting seat to move the roughness measurement module by driving the base body based on the radial adjustment distance calculated in the corresponding step S45, so that the trigger switch is contacted with the workpiece and is switched on; after the trigger switch is switched on, the roughness measuring module is controlled to move axially so as to scan the contact section of the roughness probe and the measured part of the workpiece, and the roughness information is uploaded to a numerical control system of the machine tool through a driving base body;
s48, judging whether transposition measurement is needed or not according to the measurement working condition; if so, returning the roughness measuring module to the working radius of the roughness measuring module in the step S45, and returning to the step S47 after the main shaft is controlled by the numerical control system of the machine tool to axially rotate the whole machine measuring device by a corresponding angle; if not, the process proceeds to step S5.
Preferably, the control resets the on-machine measuring device, that is, the roughness measuring module is returned to the working radius of the roughness measuring module in step S45, the machine tool numerical control system is used to control the spindle of the machine tool to return the on-machine measuring device to the safe position coordinate position of the workpiece to be measured during finish machining, and the machine tool control system is used to control the driving base to move the sliding mounting seat to the initial working radius position of the on-machine measuring device.
The invention has the beneficial effects that:
1) According to the on-machine measuring device provided with the variable-diameter adjusting module, a plurality of measuring heads are carried to work synchronously, so that the measuring efficiency is improved, the radial adjusting stroke is large, and the adaptability to measured parts with different sizes is strong; the machine tool digital control system is communicated with the machine tool digital control system, so that the roughness of the corresponding part of the workpiece is automatically measured, the operation is convenient and fast, the influence of human subjectivity is eliminated, and the consistency and the reliability of the measurement result are improved by scanning the roughness measuring head in the machine measuring device; in addition, the roughness measurement of the large part can be completed quickly and safely based on the diameter-variable adjustment of the on-machine measuring device;
2) Structurally, the technical scheme has the advantages of small volume, small occupied control and low relative cost. The rotary support and the axial positioning of the reducing adjusting module are realized by only one crossed roller bearing, the structural complexity and the number of parts are simplified, the cost is reduced, and the daily maintenance or the personalized reconstruction are facilitated.
3) The multifunctional three-dimensional measuring head disclosed by the invention adopts a multifunctional and modular design, can flexibly carry a standard trigger type 3D measuring head to measure the size of a finish-machined part, can also flexibly carry a plurality of roughness measuring modules to measure the surface precision of parts such as an inner hole, an outer cylindrical surface, a plane, a special curved surface and the like, and the whole device comprises four modules with clear boundaries of connection, control, variable diameter regulation and an output end, can flexibly configure the specification of each module according to a specific application scene, is favorable for reducing the development cost, and has a wide application range.
4) The invention can realize on-machine measurement after finish machining, is directly arranged on finish machining equipment, fully utilizes the coordinate information of a finish machining station, does not need to establish a special measuring station for machining precision, saves cost and space, reduces the transferring and repositioning procedures of most parts, saves time, and can be conveniently integrated into non-finish machining stations such as special measuring equipment in other scenes.
5) The machining precision on-machine measuring method can realize single multi-point sampling by utilizing a plurality of measuring heads, the sampling length can be flexibly configured, the measuring direction is changed by utilizing machine tool equipment, more comprehensive measurement can be realized, the data samples are sufficient, the reliability and the precision are higher, and the measurement uncertainty can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of a state when a mechanical measuring device measures the outer side wall of a workpiece;
FIG. 2 is a schematic view of a state structure when a machine measuring device measures the inner side wall of a workpiece;
FIG. 3 is a schematic bottom view of the structure of FIG. 2;
FIG. 4 is an enlarged view of the structure at A of FIG. 3;
FIG. 5 is an exploded view of the in-and-out measuring device;
FIG. 6 is an axial view of the drive plate;
FIG. 7 is a schematic view of a slide mount;
FIG. 8 is a schematic diagram of the movement path of the on-machine measuring device during roughness measurement;
FIG. 9 is a flow chart of an implementation of the on-machine measurement method of finish roughness;
in the figure:
1. a standard shank; 2. a drive base; 2.0, mounting a base; 2.1, packaging a bottom shell; 2.11, a radial chute; 2.2, connecting discs; 2.3, gears; 2.4, cross roller bearings; 2.5, gear ring; 2.6, a driving disc; 2.61, an involute chute; 2.7, driving a control circuit; 2.71, a servo speed reducing motor; 2.72, a motor driving module; 2.73, a battery; 2.74, a master controller; 3. fixing the mounting seat; 4. a sliding mounting seat; 4.1, a clamping plate; 4.2, connecting plates; 4.3, a sliding block; 4.4, a sliding column; 5. a trigger type 3D measuring head; 6. a roughness measuring module; 6.1 an axial moving mechanism; 6.2, measuring head rods; 6.3, the measuring rod shakes the limiting sleeve; 6.4, a roughness probe; 6.5, triggering a switch; 7. a workpiece; 7.1, a detected part; 8. the moving direction of the sliding mounting seat; 9. measuring the shaking direction of the head rod; 10. the axial movement direction of the roughness measuring module; 11. changing the cutter position; 12. a security bit; 13. a deceleration position; 14. carrying slowly; 15. the median is measured.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.
Thus, the following detailed description of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The embodiment firstly discloses a multifunctional finish machining roughness on-machine measuring device (hereinafter, collectively referred to as on-machine measuring device), which comprises a standard tool shank 1, a radial posture adjusting mechanism and a multifunctional measuring unit as a preferred embodiment of the invention, as shown in fig. 1 and fig. 2. The radial posture adjusting mechanism comprises a driving base body 2, a fixed mounting seat 3 and a plurality of sliding mounting seats 4 connected to one end of the driving base body 2; the fixed mounting seat 3 and the driving base body 2 are coaxially arranged, and the sliding mounting seat 4 is arranged around the central shaft of the driving base body 2 at intervals in the circumferential direction and can move in the radial direction under the action of the driving base body 2. The multifunctional measuring unit comprises a plurality of trigger type 3D measuring heads 5 and a plurality of roughness measuring modules 6; trigger formula 3D gauge head 5 is used for dismantling with fixed mounting seat 3 or sliding mounting seat 4 one-to-one and is connected, and roughness measurement module 6 is used for dismantling with fixed mounting seat 3 or sliding mounting seat 4 one-to-one and is connected specifically can adopt the screw connection. The other end of standard handle of a knife 1 and drive base member 2 is coaxial to be dismantled and is connected, including but not limited to adopting screw connection, different technical staff can adopt other connection modes of dismantling as required, and based on this, this technical scheme can select to change suitable standard handle of a knife 1 according to the epaxial handle of a knife interface model of lathe main shaft to the suitability at on-machine measuring device has been improved.
Based on the structure, the technical scheme combines the working principle of the on-machine measuring device, provides the on-machine measuring method for the finish machining roughness, and specifically comprises the following steps:
s1, cutter resetting: after the numerical control finish machining of the workpiece 7 is completed, the spindle of the machine tool is controlled by the numerical control system of the machine tool to retract the tool to the tool changing position 11 of the machine tool.
S2, device installation and communication establishment: the cutter used in the process of machining the workpiece 7 on the main shaft is disassembled, the driving base body 2 of the on-machine measuring device is arranged on the main shaft through the standard cutter handle 1, and communication connection between the on-machine measuring device and a numerical control system of a machine tool is established. Specifically, the communication between the drive base 2 and the numerical control system of the machine tool may be wired communication or wireless communication.
S3, measuring the size of the workpiece 7: the trigger type 3D measuring head 5 is installed on the driving base body 2, the size information of the measured part 7.1 of the workpiece 7 is obtained through the trigger type 3D measuring head 5, and the size information of the measured part 7.1 of the workpiece 7 is uploaded to a numerical control system of the machine tool. According to the technical scheme, independent measurement and matched measurement can be selected according to the size of the workpiece 7. The so-called independent measurement is that when the size of the workpiece 7 to be measured is small, specifically, a trigger type 3D measuring head 5 is installed on the fixed installation base 3, the machine tool spindle is controlled to move on the machine measuring device based on the numerical control system of the machine tool, and further the trigger type 3D measuring head 5 is in contact with the measured part 7.1 of the workpiece 7, so as to achieve the acquisition of the size information of the measured part 7.1 of the workpiece 7. The so-called cooperative measurement is used when the size of the measured workpiece 7 is large, specifically, the trigger type 3D measuring heads 5 are installed on all the sliding mounting seats 4, and based on communication established between the machine tool numerical control system and the machine measuring device, the machine tool numerical control system controls all the sliding mounting seats 4 to synchronously move through the driving base body 2, further, all the trigger type 3D measuring heads 5 are in contact with the measured part 7.1 of the workpiece 7, so that the multiple trigger type 3D measuring heads 5 cooperate to achieve acquisition of the size information of the measured part 7.1 of the workpiece 7, and the detection efficiency is improved. The size information mainly includes a characteristic radius.
S4, roughness data acquisition: the trigger type 3D measuring head 5 on the driving base body 2 is replaced by a roughness measuring module 6, the working position of the roughness measuring module 6 is adjusted according to the size information of the measured part 7.1 of the workpiece 7, the roughness measuring module 6 is utilized to measure the roughness of the measured part 7.1 of the workpiece 7, and the measured roughness data is uploaded to a machine tool numerical control system. Correspondingly, the control of the roughness measurement module 6 is different for the difference between the independent measurement and the cooperative measurement, specifically: when the matched measurement is adopted, a roughness measuring module 6 is arranged on the fixed mounting seat 3, the machine tool spindle is controlled to move on the machine measuring device based on a machine tool numerical control system, and the roughness measuring module 6 is further contacted with a measured part 7.1 of a workpiece 7, so that the roughness information of the measured part 7.1 of the workpiece 7 is obtained; when the matched measurement is adopted, the roughness measuring modules 6 are arranged on all the sliding installation seats 4, the numerical control system of the machine tool controls all the sliding installation seats 4 to synchronously move by driving the base body 2, and further all the roughness measuring modules 6 are in contact with the measured part 7.1 of the workpiece 7 (as shown in fig. 3 and 4), so that the roughness information of the measured part 7.1 of the workpiece 7 can be obtained by matching the plurality of roughness measuring modules 6, and the detection efficiency is also improved.
S5, acquiring a roughness value and resetting an on-machine measuring device: and after the roughness data is acquired, controlling the on-machine measuring device to reset, and calculating an average roughness value by using a machine tool numerical control system based on the received roughness data, namely finishing the roughness measurement of the measured part 7.1 of the current workpiece 7.
Example 2
The embodiment discloses a multifunctional finish machining roughness on-machine measuring device, which is a preferred embodiment of the invention, namely in the embodiment 1, four sliding installation seats 4 which are arranged at equal intervals are connected to a driving base body 2. On the premise of ensuring the stable structure, enough moving space is reserved, and enough installation positions are ensured to improve the detection efficiency.
Example 3
In this example, which discloses a multifunctional finishing roughness on-machine measuring device, as a preferred embodiment of the present invention, i.e., in example 1 or 2, as shown in fig. 5, a driving base 2 includes a mounting base 2.0 and a packaging bottom case 2.1. One end of the mounting base 2.0 is provided with a connecting disc 2.2 for connecting the standard tool shank 1. The bottom of encapsulation drain pan 2.1 is provided with a plurality of radial spout 2.11 that are used for the one-to-one correspondence installation slidable mounting seat 4, ensures the directional slip of slidable mounting seat 4 reliable and stable. The encapsulation bottom shell 2.1 is coaxially and fixedly connected with one end of the mounting base 2.0, and is matched with the mounting base 2.0 to form a driving cavity, so that a good internal environment of the driving base body 2 is maintained, and the daily maintenance and cleaning of the on-machine measuring device are facilitated. The driving cavity is internally provided with a driving mechanism for controlling the sliding mounting seat 4 to move, wherein the driving cavity plays a good role in protecting the driving mechanism, and the machine tool numerical control system is particularly communicated with the driving mechanism.
Example 4
The embodiment discloses a multifunctional finish machining roughness on-machine measuring device, which is a preferred embodiment of the invention, namely, in embodiment 3, as shown in fig. 5, a driving mechanism comprises a driving control circuit 2.7, a gear 2.3, and a crossed roller bearing 2.4, a gear ring 2.5 and a driving disc 2.6 which are coaxially arranged with a mounting base 2.0 in sequence; the outer ring of the crossed roller bearing 2.4 is fixedly connected with the mounting base 2.0, the inner ring of the crossed roller bearing 2.4 is fixedly connected with the driving disc 2.6 through the gear ring 2.5, the gear 2.3 is mutually meshed with the gear ring 2.5, and the driving disc 2.6 is provided with involute chutes 2.61 (shown in figure 6) which are in one-to-one correspondence with the sliding mounting bases 4; the drive control circuit 2.7 is arranged on the mounting base 2.0 and used for providing rotary power for the gear 2.3. Wherein, the communication is established with a numerical control system of the machine tool through a drive control circuit 2.7.
Based on the above structure, the operating principle of the driving base body 2 is as follows: the machine tool control system controls the gear 2.3 to rotate through the drive control circuit 2.7, under the supporting effect of the crossed roller bearing 2.4, the gear ring 2.5 rotates along with the gear 2.3 to further drive the driving disc 2.6, along with the rotation of the driving disc 2.6, the sliding installation seat 4 slides along the involute chute 2.61, and under the effect of the directional structure of the radial chute 2.11 on the packaging bottom shell 2.1, the sliding installation seat 4 moves in the radial direction of the packaging bottom shell 2.1.
Example 5
In the embodiment, which discloses a multifunctional finish machining roughness on-machine measuring device, as a preferred embodiment of the present invention, that is, in embodiment 4, as shown in fig. 5, a driving control circuit 2.7 includes, but is not limited to, a servo deceleration motor 2.71, a motor driving module 2.72, a battery 2.73 and a general controller 2.74; the servo speed reducing motor 2.71 is electrically connected with the master controller 2.74 through a motor driving module 2.72, and a rotating shaft of the servo speed reducing motor 2.71 is in transmission connection with the gear 2.3; the battery 2.73 is used for providing working power supply for the driving control circuit 2.7 and the multifunctional measuring unit. The master controller 2.74 is used for controlling the multifunctional measuring unit to collect corresponding detection data and uploading the detection data to the machine tool numerical control system, the machine tool control system controls the motor servo reducing motor 2.71 to work through the master controller 2.74 based on the detection data, and the multifunctional measuring unit is further controlled to move, so that closed-loop control of the servo reducing motor 2.71 is achieved.
Example 6
As a preferred embodiment of the present invention, in example 5, as shown in fig. 5, the roughness measuring module 6 includes an axial moving mechanism 6.1, a measuring head rod 6.2, and a measuring rod shake limiting sleeve 6.3. The axial moving mechanism 6.1 can be an electric cylinder and mainly realizes the directional telescopic function of the roughness measuring module 6 during working; the measuring rod shaking limiting sleeve 6.3 is of a hollow cylinder structure, the original radius in the measuring rod shaking limiting sleeve is larger than the radius of the cross section of the measuring head rod 6.2, and the measuring head rod 6.2 is guaranteed to have enough shaking space, so that the roughness probe 6.4 in the future is in flexible contact with the workpiece 7, and the roughness measuring module 6 and the workpiece 7 are prevented from being damaged mechanically as much as possible. One end of the axial moving mechanism 6.1 is used for connecting the sliding installation seat 4, and the measuring rod shaking limiting sleeve 6.3 is coaxially and fixedly connected with the other end of the axial moving mechanism; the two sides of the measuring rod shaking limiting sleeve 6.3 are respectively provided with a trigger switch 6.5, two trigger switches 6.5 of the same measuring rod shaking limiting sleeve 6.3 are located on the same radial direction of the driving base body 2, and the trigger switches 6.5 are electrically connected to the main controller 2.74 and used for being matched with the main controller 2.74 to control the roughness measuring module 6 to work. The roughness probe 6.4 is installed to the one end of gauge head pole 6.2, and the inside coaxial reset spring that is provided with of spacing sleeve 6.3 is rocked to the gauge head pole, and the other end axial of gauge head pole 6.2 inserts the gauge head and rocks spacing sleeve 6.3 to rock spacing sleeve 6.3 swing joint through reset spring and axial moving mechanism 6.1 or gauge head. The roughness probe 6.4 is electrically connected to the master controller 2.74, so that detected data are uploaded to the machine tool numerical control system through the master controller 2.74.
Further, electrical connectors can be arranged on the fixed mounting seat 3 and the sliding mounting seat 4, and the electrical connectors are connected to the main controller 2.74 through wires, so that the trigger-type 3D measuring head 5 and the roughness measuring module 6 can be quickly connected to the main controller 2.74 through the electrical connectors.
Example 7
As a preferred embodiment of the present invention, in example 6, as shown in fig. 1 and 5, a roughness probe 6.4 has an annular symmetric conical surface structure, that is, the roughness probe 6.4 has two conical surfaces, which can be regarded as a structure in which the bottom surfaces of two cones (the top structure of the cone is covered by a probe rod 6.2, so that it can be said that the cone is a circular truncated cone) are overlapped and spliced. The structure can realize contact with any working direction.
Example 8
As a preferred embodiment of the present invention, that is, any one of embodiments 4 to 7, as shown in fig. 5, a fixed mounting seat 3 is disposed at an axial center of a driving base 2, one end of the fixed mounting seat 3 is fixedly connected to a mounting base 2.0, and the other end of the fixed mounting seat 3 penetrates through a bottom package casing 2.1; the driving disk 2.6 and the packaging bottom shell 2.1 are in clearance fit with the fixed mounting seat 3 respectively. The structure divides the stress of each part of the on-machine measuring device again, the fixed mounting seat 3 can share a part of force, and the fixed mounting seat 3 can play a great role in centering, thereby improving the stability of the on-machine measuring device.
Example 9
As a preferred embodiment of the present invention, that is, in any one of embodiments 4 to 7, as shown in fig. 7, the sliding mounting base 4 includes a clamping plate 4.1, a connecting plate 4.2 for connecting the trigger 3D measuring head 5 or the roughness measuring module 6, and a sliding block 4.3 penetrating inside the radial sliding chute 2.11, two ends of the sliding block 4.3 are respectively connected to the clamping plate 4.1 and the connecting plate 4.2, and a sliding column 4.4 for matching with the involute sliding chute 2.61 is arranged on the clamping plate 4.1.
Example 10
The embodiment discloses a finish machining roughness on-machine measuring method, and as a preferred embodiment of the invention, a multifunctional finish machining roughness on-machine measuring device is adopted, as shown in fig. 9, comprising the following steps:
s1, cutter resetting: after finishing the numerical control finish machining of the workpiece 7, the spindle of the machine tool is controlled by the numerical control system of the machine tool to retract the tool to the tool changing position 11 of the machine tool.
S2, device installation and communication establishment: the cutter used in the process of machining the workpiece 7 on the main shaft is disassembled, the driving base body 2 of the on-machine measuring device is arranged on the main shaft through the standard cutter handle 1, and the communication connection between the on-machine measuring device and the numerical control system of the machine tool is established.
S3, measuring the size of the workpiece 7: the trigger type 3D measuring head 5 is installed on the driving base body 2, the size information of the measured part 7.1 of the workpiece 7 is obtained through the trigger type 3D measuring head 5, and the size information of the measured part 7.1 of the workpiece 7 is uploaded to a numerical control system of the machine tool. The method specifically comprises the following steps:
and S31, determining a measuring mode, and selecting to adopt independent measurement or matched measurement according to the space constraint condition of the measured part 7.1 of the workpiece 7. Specifically, when the space of the measured part 7.1 of the workpiece 7 is enough to accommodate a plurality of trigger-type 3D probes 5, the cooperative measurement may be adopted, and if not, the independent measurement may be adopted.
S32, initializing the working radius of the on-machine measuring device: when independent measurement is adopted, the axis of the fixed mounting seat 3 is taken as an initial working radius position, namely the initial working radius is zero; when the matching measurement is adopted, the machine tool control system controls the driving base body 2 to move the sliding mounting seat 4 to the position farthest from or closest to the central shaft of the driving base body 2, and the distance between the shaft center of the sliding mounting seat 4 and the shaft center of the driving base body 2 is used as the initial working radius. Specifically, the farthest position or the nearest position is determined mainly based on the position of the portion 7.1 to be measured of the workpiece 7, and as shown in fig. 1, when the outer side surface of the workpiece 7 is the portion 7.1 to be measured, the slide mount 4 is moved to the position farthest from the central axis of the drive base 2, and as shown in fig. 2, when the inner side surface of the workpiece 7 is the portion 7.1 to be measured, the slide mount 4 is moved to the position nearest to the central axis of the drive base 2.
S33, mounting a measuring head: when independent measurement is adopted, a trigger type 3D measuring head 5 is arranged on the fixed mounting base 3; when the cooperation measurement is adopted, the trigger type 3D measuring head 5 is installed on the sliding installation seat 4.
S34, size measurement: the main shaft is controlled by a machine tool numerical control system to move the driving base body 2 provided with the trigger type 3D measuring head 5 to a workpiece 7, and the size information of a measured part 7.1 of the workpiece 7 is obtained in a mode of controlling the trigger type 3D measuring head 5 to be in contact with the workpiece 7 in a moving mode; when independent measurement is adopted, the machine tool numerical control system controls the machine tool main shaft to synchronously move and rotate with the on-machine measuring device so that the trigger type 3D measuring head 5 is in contact with the workpiece 7; when using the co-ordinated measurement, the machine tool numerical control system makes contact with the workpiece 7 by controlling the radial movement of the trigger 3D feeler 5 by the drive base 2 of the on-machine measuring device, during which the machine tool numerical control system registers the working radius variation of the on-machine measuring device.
And S35, uploading the obtained size information of the measured part 7.1 of the workpiece 7 to a numerical control system of the machine tool through the driving base body 2. Wherein, the size information of the detected part 7.1 of the workpiece 7 mainly comprises the characteristic radius of the detected part 7.1 of the workpiece 7 as shown in fig. 8r2。
S4, roughness data acquisition: the trigger type 3D measuring head 5 on the driving base body 2 is replaced by a roughness measuring module 6, the working position of the roughness measuring module 6 is adjusted according to the size information of the measured part 7.1 of the workpiece 7, the measured part 7.1 of the workpiece 7 is subjected to roughness measurement by the roughness measuring module 6, and measured roughness data are uploaded to a machine tool numerical control system. The method specifically comprises the following steps:
s41, replacing a measuring head: and controlling a main shaft of the machine tool by using a numerical control system of the machine tool to return the driving matrix 2 provided with the trigger type 3D measuring head 5 to a tool changing position 11 of the machine tool, and replacing the trigger type 3D measuring head 5 with the roughness measuring module 6.
S42, setting a moving path of the on-machine measuring device: as shown in fig. 8, a machining coordinate system and coordinates of the safety bit 12 at the time of finish machining of the measured portion 7.1 of the workpiece 7 are called by the machine tool numerical control system, and a deceleration bit 13 and a buffer bit 14 are sequentially provided between the coordinates of the safety bit 12 and the measured region of the workpiece 7 with the safety bit 12 as a starting point in combination with the coordinate information of the measured portion 7.1 of the workpiece 7. Furthermore, considering that a certain distance exists between the roughness probe 6.4 and the trigger switch 6.5 of the roughness measurement module 6, it is required to ensure that both the roughness probe 6.4 and the trigger switch 6.5 are in contact with the measured part 7.1 of the workpiece 7 during measurement, and therefore, a contact section needs to be planned at the measured part 7.1 of the workpiece 7, the length of the contact section is made to be Lt, a measurement neutral position 15 is arranged in the middle of the contact section, and the roughness probe 6.4 performs reciprocating motion in the range of the contact section under the action of the axial moving mechanism 6.1 by taking the measurement neutral position 15 as a reference. During the movement of the on-machine measuring device, the spindle can move to the safety position 12 at a higher speed, then move to the deceleration position 13 at a higher speed, gradually decelerate in the process from the deceleration position 13 to the slow position 14, then start from the slow position 14, move at a lower speed until the roughness probe 6.4 reaches the measuring middle position 15. In this way, the safety of the on-machine measuring device and the workpiece 7 is ensured, as well as the ensured moving speed of the on-machine measuring device. The total length from the safety bit 12 to the measurement median 15 is L, and those skilled in the art can divide the distance between the positions (the safety bit 12, the deceleration bit 13, the buffer bit 14, and the measurement median 15) according to actual needs.
S43, updating the working radius: the machine tool numerical control system acquires the working radius of the roughness measurement module based on the combination of the final working radius of the on-machine measurement device and the structural characteristics of the roughness measurement module, wherein the working radius of the roughness measurement module is the distance between the corresponding trigger switch 6.5 and the axis of the on-machine measurement device, such as the working radius of the roughness measurement module in fig. 8r0; when the independent measurement is adopted, the axis of the on-machine measuring device is the final working radius position of the on-machine measuring device, and when the cooperative measurement is adopted, the machine tool numerical control system obtains the final working radius of the on-machine measuring device based on the working radius change of the on-machine measuring device recorded in the step S34;
s44, eliminating the position interference between the roughness probe 6.4 and the workpiece 7 to be measured: when independent measurement is adopted, position interference elimination operation is not required; when the matched measurement is adopted, the numerical control system of the machine tool is utilized to call the characteristic radius in the dimension information of the measured part 7.1 of the workpiece 7r2, simultaneously combining the structural characteristics (specifically, the structural characteristics) of the roughness measurement module and the working radius of the roughness measurement module to obtain the working radius of the roughness probe 6.4 (namely the real-time working radius of the roughness probe 6.4)r1) And (3) judging whether the roughness probe 6.4 and the workpiece 7 to be detected have interference or not by combining the characteristic radius of the detected part 7.1 of the workpiece 7 and the working radius position of the roughness probe 6.4, if so, returning to the step S43 after the numerical control system of the machine tool controls the sliding mounting seat 4 to synchronously move with the on-machine measuring device by driving the substrate 2, and if not, enteringStep S45 is entered. In particular, the radial distance Δ of the roughness probe 6.4 from the measured region 7.1 of the workpiece 7h=r2-r1, setting a radial safe distance delta from a roughness probe 6.4 to a measured part 7.1 of a workpiece 7 according to actual measurement working conditionshmaxIf Δh≤ΔhmaxIf not, judging that the interference exists.
S45, the machine tool numerical control system measures the working radius of the module based on the characteristic radius of the measured part 7.1 of the workpiece 7 and the roughnessr0 calculating the radial adjustment distance Δ of the roughness measurement module 6r=r2-r0；
S46, moving the roughness measuring module 6 to the position: controlling the main shaft to move the driving matrix 2 provided with the roughness measuring module 6 to the workpiece 7 by utilizing a machine tool numerical control system corresponding to the safety position 12 coordinate, the deceleration position 13 and the slow carry 14 in the step S42, so that the roughness probe 6.4 is positioned at the measured part 7.1 of the workpiece 7;
s47, roughness detection: when independent measurement is adopted, the machine tool numerical control system controls the machine tool main shaft to synchronously move with the on-machine measuring device on the basis of the radial adjusting distance calculated in the corresponding step S45, so that the trigger switch 6.5 is contacted with the workpiece 7 to be switched on; when the cooperative measurement is adopted, the machine tool numerical control system controls the sliding mounting seat 4 to move the roughness measuring module 6 by driving the base body 2 based on the radial adjusting distance calculated in the corresponding step S45, so that the trigger switch 6.5 is contacted with the workpiece 7 and is switched on; after the trigger switch 6.5 is switched on, the roughness measuring module is controlled to move axially so as to scan the contact section of the roughness probe 6.4 and the measured part 7.1 of the workpiece 7 and upload the roughness information to a machine tool numerical control system through the driving substrate 2;
s48, judging whether transposition measurement is needed or not according to the measurement working condition; if necessary, returning the roughness measuring module 6 to the working radius of the roughness measuring module in step S45rAt 0, controlling the main shaft through a numerical control system of the machine tool to enable the whole on-machine measuring device to axially rotate by a corresponding angle, and returning to the step S47; if not, the process proceeds to step S5.
S5, acquiring a roughness value and resetting an on-machine measuring device: and after the roughness data are acquired, controlling the on-machine measuring device to reset, and calculating an average roughness value by using a machine tool numerical control system based on the received roughness data, namely finishing the roughness measurement of the measured part 7.1 of the current workpiece 7. And controlling the on-machine measuring device to reset, namely, returning the roughness measuring module 6 to the working radius of the roughness measuring module in the step S45, controlling a main shaft of a machine tool by using a machine tool numerical control system to return the on-machine measuring device to the position of the safety position 12 coordinates of the measured part 7.1 of the workpiece 7 during finish machining, and controlling the driving base body 2 to move the sliding mounting seat 4 to the position of the initial working radius of the on-machine measuring device by using the machine tool control system.
Further, based on formula
An average roughness value is calculated, wherein,
represents an average roughness value;
represents the first
A roughness measuring head;
the total number of roughness measuring heads is shown, according to the structure of the on-machine measuring device of the technical proposal,
can take the value of 4;
representing the whole on-machine measuring device
An azimuth angle;
indicating the total number of azimuth adjustments of the whole on-machine measuring device; is as follows
At an azimuth angle of
Roughness measurements of the roughness stylus.
Claims (9)
1. The utility model provides a multi-functional finish machining roughness is at quick-witted measuring device which characterized in that: the device comprises a standard knife handle (1), a radial posture adjusting mechanism and a multifunctional measuring unit;
the radial posture adjusting mechanism comprises a driving base body (2), a fixed mounting seat (3) and a plurality of sliding mounting seats (4) connected to one end of the driving base body (2); all the sliding installation seats (4) are arranged at intervals around the central shaft of the driving base body (2) in the circumferential direction and can move in the radial direction under the action of the driving base body (2);
the driving base body (2) comprises a mounting base (2.0) and an encapsulation bottom shell (2.1), one end of the mounting base (2.0) is provided with a connecting disc (2.2) used for being connected with the standard tool shank (1), and the bottom of the encapsulation bottom shell (2.1) is provided with a plurality of radial sliding grooves (2.11) used for correspondingly mounting the sliding mounting seats (4) one by one; the packaging bottom shell (2.1) is coaxially and fixedly connected with one end of the mounting base (2.0) and is matched with the mounting base (2.0) to form a driving cavity, and a driving mechanism for controlling the sliding mounting base (4) to move is arranged in the driving cavity;
the driving mechanism comprises a driving control circuit (2.7), a gear (2.3), a crossed roller bearing (2.4), a gear ring (2.5) and a driving disc (2.6), wherein the crossed roller bearing, the gear ring and the driving disc are sequentially coaxially arranged with the mounting base (2.0); the outer ring of the crossed roller bearing (2.4) is fixedly connected with the mounting base (2.0), the inner ring of the crossed roller bearing (2.4) is fixedly connected with a driving disc (2.6) through a gear ring (2.5), a gear (2.3) is meshed with the gear ring (2.5), and involute chutes (2.61) which correspond to the sliding mounting bases (4) one by one are arranged on the driving disc (2.6); the drive control circuit (2.7) is arranged on the mounting base (2.0) and is used for providing rotary power for the gear (2.3);
the fixed mounting seat (3) is arranged at the axis of the driving base body (2), one end of the fixed mounting seat (3) is fixedly connected with the mounting base (2.0), and the other end of the fixed mounting seat (3) penetrates through the packaging bottom shell (2.1); the driving disc (2.6) and the packaging bottom shell (2.1) are in clearance fit with the fixed mounting seat (3) respectively;
the multifunctional measuring unit comprises a plurality of trigger type 3D measuring heads (5) and a plurality of roughness measuring modules (6); the trigger type 3D measuring head (5) is used for being in one-to-one correspondence detachable connection with the fixed mounting seat (3) or the sliding mounting seat (4), and the roughness measuring module (6) is used for being in one-to-one correspondence detachable connection with the fixed mounting seat (3) or the sliding mounting seat (4);
the sliding mounting seat (4) comprises a clamping plate (4.1), a connecting plate (4.2) used for connecting the trigger type 3D measuring head (5) or the roughness measuring module (6) and a sliding block (4.3) penetrating through the inner part of the radial sliding chute (2.11), two ends of the sliding block (4.3) are respectively connected with the clamping plate (4.1) and the connecting plate (4.2), and a sliding column (4.4) used for being matched with the involute sliding chute (2.61) is arranged on the clamping plate (4.1);
the standard knife handle (1) is coaxially and detachably connected with the other end of the driving base body (2).
2. The multifunctional finish roughness on-machine measuring device as claimed in claim 1, characterized in that: the driving base body (2) is connected with four sliding installation seats (4) which are arranged at equal intervals.
3. The multifunctional finish machining roughness on-machine measuring device as claimed in claim 1, wherein: the drive control circuit (2.7) comprises a servo speed reducing motor (2.71), a motor drive module (2.72), a battery (2.73) and a master controller (2.74) which is used for controlling the multifunctional measuring unit to collect corresponding detection data and uploading the detection data to a numerical control system of the machine tool and the servo speed reducing motor (2.71) controlled in a closed loop manner; the servo speed reducing motor (2.71) is electrically connected with the master controller (2.74) through the motor driving module (2.72), and a rotating shaft of the servo speed reducing motor (2.71) is in transmission connection with the gear (2.3); the battery (2.73) is used for providing working power supply for the driving control circuit (2.7) and the multifunctional measuring unit.
4. The multifunctional finish machining roughness on-machine measuring device as claimed in claim 3, characterized in that: the roughness measuring module (6) comprises an axial moving mechanism (6.1), a measuring head rod (6.2) and a measuring rod shaking limiting sleeve (6.3), and a return spring is coaxially arranged inside the measuring rod shaking limiting sleeve (6.3); one end of the axial moving mechanism (6.1) is used for being connected with the sliding installation seat (4), and the measuring rod shaking limiting sleeve (6.3) is coaxially and fixedly connected with the other end of the axial moving mechanism; two sides of the measuring rod shaking limiting sleeve (6.3) are respectively provided with a trigger switch (6.5), two trigger switches (6.5) of the same measuring rod shaking limiting sleeve (6.3) are positioned in the same radial direction of the driving base body (2), and the trigger switches (6.5) are electrically connected to the master controller (2.74) and are used for being matched with the master controller (2.74) to control the roughness measuring module (6) to work; a roughness probe (6.4) is installed at one end of the measuring head rod (6.2), the other end of the measuring head rod (6.2) is axially inserted into the measuring rod to shake the limiting sleeve (6.3), and the other end of the measuring head rod is movably connected with the axial moving mechanism (6.1) or the measuring rod to shake the limiting sleeve (6.3).
5. The multifunctional finish machining roughness on-machine measuring device as claimed in claim 4, wherein: the roughness probe (6.4) is in an annular symmetrical conical surface structure.
6. An on-machine measuring method for finish roughness, which is characterized in that a multifunctional on-machine measuring device for finish roughness as claimed in any one of claims 4 and 5 is adopted, namely, the on-machine measuring device comprises the following steps:
s1, cutter resetting: after the numerical control finish machining of the workpiece (7) is finished, controlling a main shaft of the machine tool to retract the tool to a tool changing position (11) of the machine tool by using a machine tool numerical control system;
s2, device installation and communication establishment: the method comprises the following steps of (1) disassembling a cutter used for machining a workpiece (7) on a main shaft, installing a driving base body (2) of an on-machine measuring device on the main shaft through a standard cutter handle (1), and establishing communication connection between the on-machine measuring device and a numerical control system of a machine tool;
s3, measuring the size of the workpiece (7): the method comprises the steps that a trigger type 3D measuring head (5) is installed on a driving base body (2), size information of a measured part (7.1) of a workpiece (7) is obtained through the trigger type 3D measuring head (5), and the size information of the measured part (7.1) of the workpiece (7) is uploaded to a machine tool numerical control system;
s4, roughness data acquisition: replacing a trigger type 3D measuring head (5) on a driving base body (2) with a roughness measuring module (6), adjusting the working position of the roughness measuring module (6) according to the size information of the measured part (7.1) of the workpiece (7), measuring the roughness of the measured part (7.1) of the workpiece (7) by using the roughness measuring module (6), and uploading the measured roughness data to a machine tool numerical control system;
s5, acquiring a roughness value and resetting the on-machine measuring device: and after the roughness data are acquired, controlling the on-machine measuring device to reset, and calculating an average roughness value by using a machine tool numerical control system based on the received roughness data, namely finishing the roughness measurement of the measured part (7.1) of the current workpiece (7).
7. An on-machine measurement method of finish roughness as claimed in claim 6, characterized in that it comprises independent and coordinated measurements, based on which in said step S3 the measurement of the dimensions of the workpiece (7) comprises the following steps:
s31, determining a measuring mode, and selecting to adopt independent measurement or matched measurement according to the space constraint condition of the measured part (7.1) of the workpiece (7);
s32, initializing the working radius of the on-machine measuring device: when independent measurement is adopted, the axis of the fixed mounting seat (3) is taken as an initial working radius position, namely the initial working radius is zero; when the matched measurement is adopted, the machine tool control system controls the driving base body (2) to move the sliding installation seat (4) to the position which is farthest or closest to the central shaft of the driving base body (2), and the distance between the shaft center of the sliding installation seat (4) and the shaft center of the driving base body (2) is taken as the initial working radius;
s33, mounting a measuring head: when independent measurement is adopted, a trigger type 3D measuring head (5) is arranged on the fixed mounting base (3); when the matched measurement is adopted, a trigger type 3D measuring head (5) is arranged on the sliding mounting seat (4);
s34, size measurement: the method comprises the steps that a main shaft is controlled through a machine tool numerical control system to move a driving base body (2) provided with a trigger type 3D measuring head (5) to a workpiece (7), and size information of a measured part (7.1) of the workpiece (7) is obtained in a mode that the trigger type 3D measuring head (5) is controlled to be in contact with the workpiece (7) in a moving mode; when independent measurement is adopted, the machine tool numerical control system controls a machine tool main shaft to synchronously move and rotate with an on-machine measuring device so as to enable the trigger type 3D measuring head (5) to be in contact with a workpiece (7); when the cooperative measurement is adopted, the machine tool numerical control system controls the trigger type 3D measuring head (5) to move radially to contact with a workpiece (7) through the driving base body (2) of the on-machine measuring device, and during the period, the machine tool numerical control system records the change of the working radius of the on-machine measuring device;
and S35, uploading the obtained size information of the measured part (7.1) of the workpiece (7) to a numerical control system of the machine tool through the driving base body (2).
8. The method for on-machine measurement of finish roughness according to claim 7, wherein in step S4, said roughness data acquisition comprises the following steps:
s41, replacing a measuring head: controlling a main shaft of the machine tool by using a numerical control system of the machine tool to retract a driving base body (2) provided with the trigger type 3D measuring head (5) to a tool changing position (11) of the machine tool, and replacing the trigger type 3D measuring head (5) with a roughness measuring module (6);
s42, a moving path of the on-machine measuring device is set as follows: calling a machining coordinate system and a safety position (12) coordinate when a measured part (7.1) of the workpiece (7) is subjected to finish machining by using a machine tool numerical control system, combining coordinate information of the measured part (7.1) of the workpiece (7), taking the safety position (12) coordinate as a starting point, and sequentially setting a deceleration position (13) and a buffer position (14) between the safety position (12) coordinate and a measured area of the workpiece (7);
s43, updating the working radius: the numerical control system of the machine tool acquires the working radius of the roughness measuring module based on the working radius of the final machine measuring device and the structural characteristics of the roughness measuring module, wherein the working radius of the roughness measuring module is the distance between the corresponding trigger switch (6.5) and the axis of the on-machine measuring device; when the independent measurement is adopted, the axis of the machine measuring device is the working radius position of the final machine measuring device, and when the matched measurement is adopted, the machine tool numerical control system obtains the working radius of the final machine measuring device based on the working radius change of the final machine measuring device recorded in the step S34;
s44, eliminating the position interference between the roughness probe (6.4) and the workpiece (7) to be measured: when independent measurement is adopted, position interference elimination operation is not required; when independent measurement is adopted, a machine tool numerical control system is used for calling a characteristic radius in the size information of a measured part (7.1) of a workpiece (7), meanwhile, the working radius position of a roughness probe (6.4) is obtained by combining the structural characteristic of a roughness measurement module and the working radius of the roughness measurement module, whether interference exists between the roughness probe (6.4) and the measured workpiece (7) is judged by combining the characteristic radius of the measured part (7.1) of the workpiece (7) and the working radius position of the roughness probe (6.4), if interference exists, the machine tool numerical control system returns to step S43 after controlling a sliding mounting seat (4) to move synchronously with an on-machine measuring device through a driving base body (2), and if interference does not exist, the machine tool numerical control system enters step S45;
s45, the machine tool numerical control system calculates the radial adjusting distance of the roughness measuring module (6) based on the characteristic radius of the measured part (7.1) of the workpiece (7) and the working radius of the roughness measuring module;
s46, moving the roughness measuring module (6) to a position: controlling a main shaft to move a driving base body (2) provided with a roughness measuring module (6) to a workpiece (7) by utilizing a safety position (12) coordinate, a deceleration position (13) and a buffer position (14) in the step S42 corresponding to a machine tool numerical control system, so that a roughness probe (6.4) is positioned at a measured part (7.1) of the workpiece (7);
s47, roughness detection: when independent measurement is adopted, the machine tool numerical control system controls the main shaft of the machine tool to synchronously move with the on-machine measuring device on the basis of the radial adjusting distance calculated in the corresponding step S45, so that the trigger switch (6.5) is contacted with the workpiece (7) to be switched on; when the cooperative measurement is adopted, the machine tool numerical control system controls the sliding installation seat (4) to move the roughness measurement module (6) by driving the base body (2) based on the radial adjustment distance calculated in the corresponding step S45, so that the trigger switch (6.5) is contacted with the workpiece (7) and is switched on; after the trigger switch (6.5) is switched on, the roughness measuring module is controlled to move axially so as to scan the contact section of the roughness probe (6.4) and the measured part (7.1) of the workpiece (7) and upload roughness information to a machine tool numerical control system through the driving base body (2);
s48, judging whether transposition measurement is needed or not according to the measurement working condition; if so, returning the roughness measuring module (6) to the working radius of the roughness measuring module in the step S45, controlling the spindle by a numerical control system of the machine tool to enable the whole machine measuring device to axially rotate by a corresponding angle, and then returning to the step S47; if not, the process proceeds to step S5.
9. A finish roughness on-machine measuring method according to claim 7, characterized in that in step S5, the control resets the on-machine measuring device, i.e. the roughness measuring module (6) is retracted to the working radius of the roughness measuring module in step S45, the machine tool numerical control system is used to control the spindle of the machine tool to retract the on-machine measuring device to the coordinate position of the safety position (12) when the measured part (7.1) of the workpiece (7) is finished, and the machine tool control system is used to control the driving base body (2) to move the sliding mounting seat (4) to the initial working radius position of the on-machine measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841408.6A CN114986256B (en) | 2022-07-18 | 2022-07-18 | Multifunctional finish machining roughness on-machine measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841408.6A CN114986256B (en) | 2022-07-18 | 2022-07-18 | Multifunctional finish machining roughness on-machine measuring device and measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114986256A CN114986256A (en) | 2022-09-02 |
| CN114986256B true CN114986256B (en) | 2022-12-13 |
Family
ID=83021608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210841408.6A Active CN114986256B (en) | 2022-07-18 | 2022-07-18 | Multifunctional finish machining roughness on-machine measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114986256B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011136390A (en) * | 2009-12-28 | 2011-07-14 | Seibu Electric & Mach Co Ltd | Multifunctional machine inside measuring device in working machine |
| JP2011194530A (en) * | 2010-03-19 | 2011-10-06 | Ts Precision Co Ltd | Automatic centering device and automatic centering method |
| EP1994362B1 (en) * | 2006-03-09 | 2015-01-21 | NAGEL Maschinen- und Werkzeugfabrik GmbH | Measuring method, measuring system, and processing machine comprising a measuring system |
| CN106112713A (en) * | 2016-08-27 | 2016-11-16 | 无锡市明鑫数控磨床有限公司 | Numerical control deep hole internal grinder measures monitoring processing integrated apparatus and control system |
| CN206248059U (en) * | 2016-11-30 | 2017-06-13 | 大连计量检测中心有限公司 | Multifunctional intellectual coordinate detector gauge head warehouse compartment system |
| CN108296500A (en) * | 2018-04-12 | 2018-07-20 | 吉林大学 | A kind of modular numerically controlled lathe process precision device for fast detecting and detection method |
| CN112008668A (en) * | 2020-08-13 | 2020-12-01 | 烟台汽车工程职业学院 | Instrument maintenance device with adjustable height for machinery |
| CN212567271U (en) * | 2020-07-31 | 2021-02-19 | 成都双创时代科技有限公司 | Optimized simple three-dimensional measuring head |
| CN213196755U (en) * | 2020-08-24 | 2021-05-14 | 太仓博正数控科技有限公司 | Numerical control machine tool measuring device for improving machining precision of precision parts |
| CN216745877U (en) * | 2021-12-27 | 2022-06-14 | 昆山新顺鑫精密模具有限公司 | Detection tool for detecting roundness of inner hole of stamping part |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4986530B2 (en) * | 2006-08-02 | 2012-07-25 | パナソニック株式会社 | Shape measuring method and measuring jig |
| CN114088979A (en) * | 2021-12-20 | 2022-02-25 | 百及纳米科技(上海)有限公司 | Probe calibration method, surface measurement method, and probe control apparatus |
-
2022
- 2022-07-18 CN CN202210841408.6A patent/CN114986256B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1994362B1 (en) * | 2006-03-09 | 2015-01-21 | NAGEL Maschinen- und Werkzeugfabrik GmbH | Measuring method, measuring system, and processing machine comprising a measuring system |
| JP2011136390A (en) * | 2009-12-28 | 2011-07-14 | Seibu Electric & Mach Co Ltd | Multifunctional machine inside measuring device in working machine |
| JP2011194530A (en) * | 2010-03-19 | 2011-10-06 | Ts Precision Co Ltd | Automatic centering device and automatic centering method |
| CN106112713A (en) * | 2016-08-27 | 2016-11-16 | 无锡市明鑫数控磨床有限公司 | Numerical control deep hole internal grinder measures monitoring processing integrated apparatus and control system |
| CN206248059U (en) * | 2016-11-30 | 2017-06-13 | 大连计量检测中心有限公司 | Multifunctional intellectual coordinate detector gauge head warehouse compartment system |
| CN108296500A (en) * | 2018-04-12 | 2018-07-20 | 吉林大学 | A kind of modular numerically controlled lathe process precision device for fast detecting and detection method |
| CN212567271U (en) * | 2020-07-31 | 2021-02-19 | 成都双创时代科技有限公司 | Optimized simple three-dimensional measuring head |
| CN112008668A (en) * | 2020-08-13 | 2020-12-01 | 烟台汽车工程职业学院 | Instrument maintenance device with adjustable height for machinery |
| CN213196755U (en) * | 2020-08-24 | 2021-05-14 | 太仓博正数控科技有限公司 | Numerical control machine tool measuring device for improving machining precision of precision parts |
| CN216745877U (en) * | 2021-12-27 | 2022-06-14 | 昆山新顺鑫精密模具有限公司 | Detection tool for detecting roundness of inner hole of stamping part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114986256A (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105750601B (en) | A kind of processing method for improving the large gearbox box body device accuracy of form and position | |
| CN105928479B (en) | A kind of cartridge type part outer diameter on-line measuring device in spinning process | |
| CN106903717B (en) | A kind of 3 D locating device for industry mechanical arm location position | |
| CN114986256B (en) | Multifunctional finish machining roughness on-machine measuring device and measuring method | |
| CN105965049B (en) | A kind of method for assembling positioning bore hole to aircraft canard using servo-drive system | |
| CN114178594B (en) | System and method for milling inner cavity of deviation-containing cylindrical thin-wall casting | |
| CN111702490A (en) | Automatic finish machining process method for end faces of assembly butt joint parts | |
| CN201322608Y (en) | Shifting cam measuring apparatus | |
| JP5496029B2 (en) | EDM machine | |
| CN105215484A (en) | A kind of internal thread grinding machine grinding carriage dip angle adjusting mechanism | |
| CN220104057U (en) | Center excircle detection mechanism with cylinder floating automatic rotation mechanism | |
| CN110006370A (en) | The concentricity automatic calibration method of multiaxis grinding device, device and system | |
| CN109186462B (en) | Laser high-speed measuring machine and measuring method | |
| CN110823128B (en) | Device and method for measuring sphericity of bearing ball | |
| CN111175674B (en) | High-precision magnetic field measuring equipment | |
| CN116295300B (en) | Intelligent building mapping method | |
| CN113001259B (en) | Measuring method and measuring system for measuring borehole and precision machine tool with measuring system | |
| CN112620738A (en) | Machining tool, machining device and machining method for closed annular groove of aviation part | |
| JPS6229143B2 (en) | ||
| CN113247297B (en) | Integrated system for machining and testing large part of machine body | |
| CN206464818U (en) | Axle journal repair machine | |
| CN217413375U (en) | Flatness alignment device of numerical control lathe | |
| CN106736563A (en) | Axle journal repair machine | |
| CN213646342U (en) | Micropore laser processing device | |
| CN219598891U (en) | Multi-shaft engraving equipment capable of automatically measuring and adjusting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |