Roller screw multi-shaft milling forming device

Abstract

The invention relates to the technical field of milling, in particular to a roller lead screw multi-axis milling forming device which comprises a base, a machine body, a chuck, a first linear motor, a second linear motor, a milling mechanism and a tailstock. Compared with an existing multi-axis milling forming device, the multi-axis milling forming device is provided with the positioning mechanism, the positioning mechanism has the angle detection function and the angle self-locking function, on one hand, whether the inclination angles of a plurality of sets of cutters are changed or not can be detected in real time in the working process through the positioning mechanism, and on the other hand, the multi-axis milling forming device is convenient to operate; on the one hand, the inclined angle of the cutter is prevented from being changed due to factors such as resistance when the cutter mills a workpiece, and then the machining precision is influenced, on the other hand, in the workpiece milling process, the load borne by the rotating motor can be reduced through the positioning mechanism, and then the service life of the rotating motor is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of milling, in particular to a roller screw multi-axis milling forming device. Background Art

[0002] The roller screw is a precision mechanical transmission element, which is widely used in various mechanical equipment to achieve efficient and low-friction linear motion. It is mainly composed of screws, rollers and other components. At present, the main processing methods of roller screws in China are whirlwind milling, grinding wheel grinding and hard turning. Among them, whirlwind milling has been widely used because it can be milled into shape in one time and has high processing efficiency.

[0003] However, in actual use, the existing roller screw cyclone milling equipment usually relies on the self-locking function of the servo motor itself to ensure that the angle of the milling mechanism does not change after adjustment. However, during the milling process, the tool will be subject to resistance from the workpiece every time it moves. At this time, the load of the servo motor will be very high, so that its service life is short. The staff needs to frequently calibrate the accuracy of the servo motor, which reduces work efficiency. In addition, the current roller screw cyclone milling equipment usually uses gears or transmission belts to connect the motor to the cutter disc. For example, the patent "CN202527799U CNC five-axis linkage internal cyclone milling machine" will cause the transmission efficiency to change due to wear after long-term use, thereby affecting the rotation of the cutter disc. The current roller screw cyclone milling equipment often needs to be shut down to replace worn gears or transmission belts to ensure normal operation. However, after each shutdown, in order to ensure milling accuracy, the staff usually needs to calibrate and adjust the inclination angles of several sets of tools and workpieces again, thereby reducing the labor intensity of the staff. Summary of the invention

[0004] The object of the present invention is to provide a roller screw multi-axis milling and forming device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a roller screw multi-axis milling and forming device, the multi-axis milling and forming device includes a base, a body, a chuck, a first linear motor, a second linear motor, a milling mechanism and a tailstock, the body and the first linear motor are both arranged above the base, the chuck and the tailstock are relatively arranged at the two ends inside the body, the milling mechanism is arranged between the chuck and the tailstock, the second linear motor is arranged above the first linear motor, the milling mechanism includes a fixed seat, a power mechanism, a cutter disc and a support seat, the support seat is provided with two groups, the two groups of support seats are relatively arranged at the two ends above the second linear motor, the fixed seat is arranged between the two groups of support seats, the power mechanism is arranged above the fixed seat, the cutter disc is arranged inside the fixed seat, and a plurality of groups of cutting tools are arranged on one end of the cutter disc close to the chuck, the present invention controls the milling mechanism to move along the X-axis and Y-axis directions on the base through the first linear motor and the second linear motor, and drives the cutter disc to move in the fixed seat through the power mechanism. The fixed seat rotates inside so that several groups of tools can mill workpieces. In the present invention, a positioning mechanism is provided on the side of one group of the support seats away from the fixed seat, and a rotating motor is provided on the side of the other group of the support seats away from the fixed seat. The fixed seat is connected to the rotating motor through a first rotating shaft, and the rotating motor drives the fixed seat and the cutter disc to rotate so as to change the relative angles of several groups of tools and the workpiece as needed. Finally, the fixed seat in the present invention is connected to the positioning mechanism through a second rotating shaft, and the positioning mechanism has an angle detection function and an angle self-locking function. Compared with the current multi-axis milling forming device, after adjusting the inclination angle of several groups of tools, the present invention can, on the one hand, detect in real time whether the inclination angle of several groups of tools changes during the working process, so as to avoid the inclination angle of the tool changing due to resistance and other factors when the tool is milling the workpiece, thereby affecting the processing accuracy. On the other hand, the present invention can reduce the load on the rotating motor during the process of milling the workpiece, thereby improving the working life of the rotating motor.

[0006] Furthermore, the positioning mechanism includes a mounting seat, wherein a third electromagnet, a self-locking block, an arc frame, a positioning seat and a connecting rod are arranged inside the mounting seat, the positioning seat is arranged on the arc frame, the second rotating shaft is connected to the positioning seat through a connecting rod, and two groups of the third electromagnets are arranged, and the two groups of the third electromagnets are relatively arranged at the left and right ends inside the positioning seat, and two groups of the self-locking blocks are arranged, and the two groups of the self-locking blocks are relatively arranged between the two groups of the third electromagnets, each group of the self-locking blocks is connected to the positioning seat through a telescopic spring, and friction patterns are arranged at one end of the two groups of arc frames close to the arc frames, and when the inclination angle of several groups of cutting tools reaches the target inclination angle, the two groups of the third electromagnets are turned on, and at this time, the two groups of the third electromagnets will generate a group of magnetic fields that repel the self-locking blocks, and at this time, the two groups of self-locking blocks will clamp the arc frame. The present invention can achieve the purpose of self-locking angle through the two groups of arc frames and the arc frame, and reduce the load on the rotating motor during milling of the workpiece.

[0007] Furthermore, a first conductive sheet is provided at the side end of the arc frame, a second conductive block is provided at one end of the first conductive sheet, and a first conductive block is provided at one end of the positioning seat close to the first conductive sheet. Before the present invention works, the first conductive block and the second conductive block are respectively connected to an external power supply and a current detection device. When the rotating motor adjusts the inclination angle of several groups of tools, the second rotating shaft will synchronously rotate with the connecting rod and the positioning seat. At this time, the distance between the first conductive block and the second conductive block will change accordingly. The staff can determine the inclination angle of several groups of tools by detecting the current value on the current detection device. Finally, in the process of milling the workpiece of the present invention, the staff can determine in real time whether the inclination angle of several groups of tools has changed by detecting the current change on the current detection device, thereby ensuring the processing accuracy of the roller screw.

[0008] Furthermore, the power mechanism includes a power seat, a power shaft, a linkage sleeve, a driving wheel and an emergency wheel are arranged inside the power seat, the power shaft runs through the driving wheel and the emergency wheel, the power shaft is connected to the power motor, the driving wheel is fixedly mounted on the power shaft, the emergency wheel is connected to the power shaft through a linkage assembly, an emergency groove and an active groove are arranged on the outer side of the cutter disc, an annular wheel is arranged inside the emergency groove, a first electromagnet and a fourth electromagnet are arranged on the side end of the annular wheel, the first electromagnet is fixedly connected to the fixed seat, the fourth electromagnet is fixedly connected to the cutter disc, the annular wheel is connected to the emergency wheel through an emergency belt, the active groove is connected to the driving wheel through a driving belt, and the transmission ratio of the annular wheel and the emergency wheel is the same as the transmission ratio of the active groove and the driving wheel.

[0009] Furthermore, a linkage sleeve is provided at one end of the power shaft close to the emergency wheel, and the linkage assembly includes a second electromagnet, a liquid storage tank, a telescopic slot and a linkage block. The telescopic slots are provided with two groups, and the two groups of telescopic slots are relatively arranged at the two inner ends of the emergency wheel. Two groups of linkage blocks are arranged in each group of telescopic slots, and the linkage blocks are connected to the telescopic slots through compression springs. The second electromagnet is arranged at the side end of the liquid storage tank, and a movable plate and transmission fluid are arranged in the liquid storage tank. The liquid storage tank is connected to the two groups of telescopic slots. When the present invention is milling a workpiece normally, the first electromagnet is in an on state, and the fourth electromagnet is in a off state. The annular wheel is fixed to the fixed seat by the first electromagnet, and the annular wheel is fixed to the fixed seat, and the linkage sleeve is not in contact with the linkage block. When the power motor is turned on, the power shaft rotates with the driving wheel (the emergency wheel does not rotate), and the driving wheel rotates with the cutter disc in the fixed seat through the driving belt and the driving slot (the annular wheel does not rotate). At this time The cutter disc will carry several groups of cutting tools to mill workpieces. If during the operation, the active belt is worn due to friction or other factors and the stable rotation of the cutter disc cannot be ensured, the staff can turn on the second electromagnet and the fourth electromagnet and turn off the first electromagnet. At this time, the annular wheel is fixed to the cutter disc through the fourth electromagnet, so that the annular wheel and the cutter disc are fixed together. The second electromagnet is used to squeeze the transmission fluid in the liquid storage tank into the two groups of telescopic grooves. At this time, the two groups of linkage blocks will contact and clamp together with the linkage sleeves. Finally, the power of the power motor will be transmitted to the cutter disc along the emergency wheel and the annular wheel to ensure that several groups of cutting tools can mill workpieces normally. Compared with the current multi-axis milling and forming device, the present invention can continue to work when the transmission belt is damaged without stopping for replacement or maintenance. On the one hand, it improves the work efficiency and processing accuracy. On the other hand, it avoids the need to calibrate and adjust the inclination angles of several groups of cutting tools and workpieces again after stopping, thereby reducing the labor intensity of the staff.

[0010] Furthermore, a sensing groove is provided inside the emergency wheel, a sensing rod and a first piezoelectric sheet are provided inside the sensing groove, compressed gas is provided between the sensing rod and the first piezoelectric sheet, and an induction spring is wound around one end of the sensing rod located in the sensing groove. When the present invention is milling a workpiece, the end of the sensing rod extending out of the sensing groove is always in contact with the linkage sleeve. If the rotation of the cutter disc is smooth, the compressed gas between the sensing rod and the first piezoelectric sheet should not change. When the rotation of the cutter disc is not smooth, the sensing rod will intermittently squeeze the compressed gas in the sensing groove. At this time, the electrical signal generated by the first piezoelectric sheet will change. The staff can determine whether the rotation of the cutter disc is normal in real time by monitoring the electrical signal of the first piezoelectric sheet, thereby ensuring the processing accuracy.

[0011] Furthermore, a grinding assembly and a cylinder are provided at one end of the cutter disc away from the chuck, and the grinding assembly includes a bracket, an end cover, an air guide pipe, a grinding wheel, a fixed plate and a grinding motor, the working end of the cylinder is connected to the bracket, the fixed plate is arranged inside the bracket, the grinding wheel is arranged outside the fixed plate, the end cover and the grinding motor are arranged on both sides of the bracket relatively, the grinding motor is connected to one end of the fixed plate, the air guide pipe is connected to the other end of the fixed plate, the air guide pipe is supported by the end cover, a plurality of through holes are arranged on the outer side of the grinding wheel, and the fixed plate is provided with a plurality of through holes. An air guide channel is provided inside the fixed plate, the air guide channel is connected to a plurality of groups of through holes, the air guide tube is connected to an external air pump, and when the present invention is milling a workpiece, the first linear motor drives the milling mechanism to move along the direction of the workpiece, and at this time the grinding wheel moves along the milled thread groove, and the fixed plate and the grinding wheel are driven to rotate by the grinding motor, and the thread groove is grinded by the grinding wheel to reduce the difficulty of subsequent processing, and gas is transported into the grinding wheel by the external air pump, which cools the thread groove on the one hand and blows away the debris generated by grinding on the other hand.

[0012] Furthermore, a detection groove and a detection frame are provided at the upper end of the bracket, one end of the detection frame is provided in the detection groove, the detection frame is connected to the detection groove through a detection spring, and a second piezoelectric sheet is provided at one end of the detection groove close to the detection spring. During the process of grinding the thread groove by the grinding wheel, the lower end of the detection frame is always in contact with the grinding wheel. When the diameter of the grinding wheel becomes smaller due to wear, the detection spring will deform accordingly, and the force applied to the second piezoelectric sheet will decrease. The staff can know the wear condition of the grinding wheel in real time by monitoring the changes in the electrical signal generated by the second piezoelectric sheet, so as to replace the grinding wheel in time to avoid being affected during the grinding process.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: compared with the current multi-axis milling and forming device, the present invention is provided with a positioning mechanism, and the positioning mechanism has an angle detection function and an angle self-locking function. After adjusting the inclination angles of several groups of cutting tools, the present invention can, through the positioning mechanism, on the one hand, detect in real time whether the inclination angles of several groups of cutting tools have changed during the working process, thereby avoiding the inclination angles of the cutting tools changing due to factors such as resistance when the cutting tools are milling the workpiece, thereby affecting the processing accuracy. On the other hand, during the milling process of the workpiece, the positioning mechanism can reduce the load on the rotating motor, thereby improving the working life of the rotating motor. The present invention is also provided with an emergency wheel and a driving wheel. Compared with the current multi-axis milling and forming device, the present invention can continue to work when the transmission belt is damaged, without stopping for replacement or maintenance. On the one hand, it improves the working efficiency and processing accuracy, and on the other hand, it avoids the need to stop the machine for replacement or maintenance after stopping. The inclination angles of several groups of tools and workpieces are calibrated and adjusted at the same time, thereby reducing the labor intensity of the staff. Finally, the present invention is also provided with a grinding assembly and a cylinder, and the lifting and lowering of the grinding assembly is controlled by the cylinder. When milling the workpiece, as the milling mechanism moves along the direction of the workpiece, the grinding assembly will synchronously move along the milled thread groove, and the thread groove is polished by the grinding assembly, thereby reducing the difficulty of subsequent processing. The grinding assembly in the present invention can self-detect when working, so that the staff can monitor the wear of the grinding assembly in real time to avoid being affected during the grinding process. The grinding assembly can also generate a group of airflows when working. On the one hand, the thread groove is cooled by this group of airflows, and on the other hand, the debris generated by the grinding is blown away. At the same time, the staff can know the wear of the grinding wheel in real time by monitoring the changes in the electrical signal generated by the second piezoelectric sheet, so as to replace the grinding wheel in time to avoid being affected during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the milling mechanism of the present invention;

[0017] Figure 3 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0018] Figure 4 The present invention Figure 3 Schematic diagram of the structure of the middle BB part;

[0019] Figure 5 The present invention Figure 2 Schematic diagram of the structure of the middle AA section;

[0020] Figure 6 It is a schematic diagram of the internal structure of the emergency wheel of the present invention;

[0021] Figure 7 The present invention Figure 6 Schematic diagram of the CC structure;

[0022] Figure 8 The present invention Figure 7 Schematic diagram of the structure of the middle D part;

[0023] Fig. 9 It is a schematic diagram of the structure of the grinding assembly of the present invention.

[0024] In the figure: 1, base; 2, fuselage; 3, chuck; 4, first linear motor; 5, second linear motor; 6, milling mechanism; 61, fixed seat; 611, first rotating shaft; 612, second rotating shaft; 613, first electromagnet; 62, power seat; 621, power shaft; 6211, linkage sleeve; 622, driving wheel; 623, emergency wheel; 6231, second electromagnet; 6232, liquid storage tank; 6233, linkage block; 6234, induction tank; 6235, induction rod; 624, power motor; 63, mounting seat; 631, third electromagnet; 632, self-locking Block; 633, arc frame; 6331, first conductive sheet; 634, positioning seat; 6341, first conductive block; 635, connecting rod; 636, second conductive block; 64, cutter head; 641, cutter; 642, grinding assembly; 6421, bracket; 64211, detection slot; 64212, detection frame; 6422, end cover; 6423, air duct; 6424, grinding wheel; 6425, fixed plate; 6426, grinding motor; 643, fourth electromagnet; 644, emergency slot; 645, active slot; 65, support seat; 66, rotating motor; 7, tailstock. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] See also Figure 1-Figure 9The present invention provides a technical solution: a roller screw multi-axis milling and forming device, the multi-axis milling and forming device includes a base 1, a body 2, a chuck 3, a first linear motor 4, a second linear motor 5, a milling mechanism 6 and a tailstock 7, the body 2 and the first linear motor 4 are both arranged above the base 1, the chuck 3 and the tailstock 7 are relatively arranged at the two ends inside the body 2, the milling mechanism 6 is arranged between the chuck 3 and the tailstock 7, the second linear motor 5 is arranged above the first linear motor 4, the milling mechanism 6 includes a fixed seat 61, a power mechanism, a cutter head 64 and a support seat 65, the support seat 65 is provided with two groups, the two groups of support seats 65 are relatively arranged at the two ends above the second linear motor 5, the fixed seat 61 is arranged between the two groups of support seats 65, the power mechanism is arranged above the fixed seat 61, the cutter disc 64 is arranged inside the fixed seat 61, and a plurality of groups of cutters 641 are arranged at one end of the cutter disc 64 close to the chuck 3. The present invention controls the milling mechanism 6 to move along the X-axis and Y-axis directions on the base 1 through the first linear motor 4 and the second linear motor 5, and drives the cutter disc 64 to rotate in the fixed seat 61 through the power mechanism, so that if The dry group of tools 641 mills the workpiece. In the present invention, a positioning mechanism is provided on the side of one group of support seats 65 away from the fixed seat 61, and a rotating motor 66 is provided on the side of the other group of support seats 65 away from the fixed seat 61. The fixed seat 61 is connected to the rotating motor 66 through the first rotating shaft 611, and the rotating motor 66 drives the fixed seat 61 and the cutter disc 64 to rotate, so as to change the relative angles of the several groups of tools 641 and the workpiece as needed. Finally, the fixed seat 61 in the present invention is connected to the positioning mechanism through the second rotating shaft 612, and the positioning mechanism has an angle detection function and an angle self-locking function. Compared with the current multi-axis milling forming device, after adjusting the inclination angle of several groups of tools 641, the present invention can, on the one hand, detect in real time whether the inclination angle of several groups of tools 641 changes during the working process, so as to avoid the inclination angle of the tool 641 changing due to factors such as resistance when the tool 641 is milling the workpiece, thereby affecting the processing accuracy. On the other hand, in the process of milling the workpiece, the present invention can reduce the load on the rotating motor 66, thereby improving the working life of the rotating motor 66.

[0027] like Figure 2-Figure 4As shown, the positioning mechanism includes a mounting seat 63, and a third electromagnet 631, a self-locking block 632, an arc frame 633, a positioning seat 634 and a connecting rod 635 are arranged inside the mounting seat 63. The positioning seat 634 is arranged on the arc frame 633, and the second rotating shaft 612 is connected to the positioning seat 634 through the connecting rod 635. The third electromagnet 631 is provided in two groups, and the two groups of third electromagnets 631 are relatively arranged at the left and right ends inside the positioning seat 634. The self-locking block 632 is provided in two groups, and the two groups of self-locking blocks 632 are relatively arranged between the two groups of third electromagnets 631. Each group of self-locking blocks 632 is connected to the positioning seat 634 through a telescopic spring, and the two groups of arc frames 633 are provided with friction patterns on one end close to the arc frames 633.

[0028] like Figure 2-Figure 4 As shown, a first conductive sheet 6331 is disposed at the side end of the arc frame 633 , a second conductive block 636 is disposed at one end of the first conductive sheet 6331 , and a first conductive block 6341 is disposed at one end of the positioning seat 634 close to the first conductive sheet 6331 .

[0029] Before the present invention works, the first conductive block 6341 and the second conductive block 636 are connected to the external power supply and the current detection device respectively. When the rotating motor 66 adjusts the inclination angle of the plurality of tool groups 641, the second rotating shaft 612 will synchronously rotate with the connecting rod 635 and the positioning seat 634. At this time, the distance between the first conductive block 6341 and the second conductive block 636 will change accordingly. The staff can determine the inclination angle of the plurality of tool groups 641 by detecting the current value on the current detection device. When the inclination angle of the plurality of tool groups 641 reaches the target inclination angle, Turn on the two groups of third electromagnets 631. At this time, the two groups of third electromagnets 631 will generate a magnetic field that repels the self-locking blocks 632. At this time, the two groups of self-locking blocks 632 will clamp the arc frame 633. The present invention can achieve the purpose of self-locking angle through the two groups of arc frames 633 and the arc frame 633. During the milling process of the workpiece, the load on the rotating motor 66 is reduced. Finally, during the milling process of the present invention, the staff can determine in real time whether the inclination angle of several groups of tools 641 changes by detecting the current change on the current detection device, thereby ensuring the processing accuracy of the roller screw.

[0030] like Figure 5As shown, the power mechanism includes a power seat 62, and a power shaft 621, a linkage sleeve 6211, a driving wheel 622 and an emergency wheel 623 are arranged inside the power seat 62, the power shaft 621 runs through the driving wheel 622 and the emergency wheel 623, the power shaft 621 is connected to the power motor 624, the driving wheel 622 is fixedly mounted on the power shaft 621, the emergency wheel 623 is connected to the power shaft 621 through a linkage assembly, an emergency groove 644 and an active groove 645 are arranged on the outer side of the cutter disc 64, an annular wheel is arranged inside the emergency groove 644, and a first electromagnet 613 and a fourth electromagnet 643 are arranged on the side end of the annular wheel, the first electromagnet 613 is fixedly connected to the fixed seat 61, the fourth electromagnet 643 is fixedly connected to the cutter disc 64, the annular wheel is connected to the emergency wheel 623 through an emergency belt, the active groove 645 is connected to the active wheel 622 through an active belt, and the transmission ratio of the annular wheel and the emergency wheel 623 is the same as the transmission ratio of the active groove 645 and the active wheel 622.

[0031] like Figure 5-Figure 7 As shown, a linkage sleeve 6211 is provided at one end of the power shaft 621 close to the emergency wheel 623, and the linkage assembly includes a second electromagnet 6231, a liquid storage tank 6232, a telescopic groove and a linkage block 6233. There are two groups of telescopic grooves, and the two groups of telescopic grooves are relatively arranged at the two ends inside the emergency wheel 623. Two groups of linkage blocks 6233 are arranged in each group of telescopic grooves, and the linkage blocks 6233 are connected to the telescopic grooves through compression springs. The second electromagnet 6231 is arranged at the side end of the liquid storage tank 6232, and a movable plate and transmission fluid are arranged in the liquid storage tank 6232. The liquid storage tank 6232 is connected to the two groups of telescopic grooves.

[0032] When the present invention is milling a workpiece normally, the first electromagnet 613 is in an on state, and the fourth electromagnet 643 is in a off state. The annular wheel is fixed to the fixed seat 61 by the first electromagnet 613, and the annular wheel is fixed to the fixed seat 61. At the same time, the linkage sleeve 6211 and the linkage block 6233 are not in contact. When the power motor 624 is turned on, the power shaft 621 rotates with the driving wheel 622 (the emergency wheel 623 does not rotate), and the driving wheel 622 rotates with the cutter disc 64 in the fixed seat 61 through the driving belt and the driving groove 645 (the annular wheel does not rotate). At this time, the cutter disc 64 will mill the workpiece with several groups of cutting tools 641. If the driving belt is worn due to friction or other factors during operation, and the stable rotation of the cutter disc 64 cannot be ensured, the staff can turn on the second electromagnet 6231 and the fourth electromagnet 643, and turn off the first The electromagnet 613, at this time, the annular wheel is attracted and fixed to the cutter disc 64 through the fourth electromagnet 643, and the movable plate is squeezed by the second electromagnet 6231 to squeeze the transmission fluid in the liquid storage tank 6232 into the two groups of telescopic grooves. At this time, the two groups of linkage blocks 6233 will contact and clamp together with the linkage sleeve 6211, and finally the power of the power motor 624 will be transmitted to the cutter disc 64 along the emergency wheel 623 and the annular wheel to ensure that several groups of tools 641 can mill the workpiece normally. Compared with the current multi-axis milling and forming device, the present invention can continue to work when the transmission belt is damaged without stopping for replacement or maintenance. On the one hand, it improves the work efficiency and processing accuracy, and on the other hand, it avoids the need to calibrate and adjust the inclination angle of several groups of tools 641 and the workpiece after stopping, thereby reducing the labor intensity of the staff.

[0033] like Figure 8 As shown, the interior of the emergency wheel 623 is also provided with a sensing groove 6234, and the interior of the sensing groove 6234 is provided with a sensing rod 6235 and a first piezoelectric sheet, and compressed gas is provided between the sensing rod 6235 and the first piezoelectric sheet, and one end of the sensing rod 6235 located in the sensing groove 6234 is wound with a sensing spring. When the present invention is milling a workpiece, the end of the sensing rod 6235 extending out of the sensing groove 6234 is always in contact with the linkage sleeve 6211. If the rotation of the cutter disc 64 is stable, the compressed gas between the sensing rod 6235 and the first piezoelectric sheet should not change. When the rotation of the cutter disc 64 is not stable, the sensing rod 6235 will intermittently squeeze the compressed gas in the sensing groove 6234. At this time, the electrical signal generated by the first piezoelectric sheet will change. The staff can determine whether the rotation of the cutter disc 64 is normal in real time by monitoring the electrical signal of the first piezoelectric sheet, thereby ensuring the processing accuracy.

[0034] like Figure 5 , Fig. 9As shown, a grinding assembly 642 and a cylinder are provided at one end of the cutter disc 64 away from the chuck 3. The grinding assembly 642 includes a bracket 6421, an end cover 6422, an air guide tube 6423, a grinding wheel 6424, a fixed plate 6425 and a grinding motor 6426. The working end of the cylinder is connected to the bracket 6421, the fixed plate 6425 is arranged inside the bracket 6421, the grinding wheel 6424 is arranged outside the fixed plate 6425, and the end cover 6422 and the grinding wheel 6424 are arranged outside the fixed plate 6425. The motors 6426 are relatively arranged on both sides of the bracket 6421, the grinding motor 6426 is connected to one end of the fixed plate 6425, the air guide pipe 6423 is connected to the other end of the fixed plate 6425, and the air guide pipe 6423 is supported by the end cover 6422. A plurality of through holes are arranged on the outer side of the grinding wheel 6424, and an air guide channel is arranged inside the fixed plate 6425, the air guide channel is connected to the plurality of through holes, and the air guide pipe 6423 is connected to an external air pump.

[0035] like Fig. 9 As shown, a detection slot 64211 and a detection frame 64212 are provided at the upper end of the bracket 6421, one end of the detection frame 64212 is provided in the detection slot 64211, the detection frame 64212 is connected to the detection slot 64211 through a detection spring, a second piezoelectric sheet is provided at one end of the detection slot 64211 close to the detection spring, and the other end of the detection frame 64212 is in contact with the grinding wheel 6424.

[0036] When the present invention is milling a workpiece, the first linear motor 4 will drive the milling mechanism 6 to move along the direction of the workpiece. At this time, the grinding wheel 6424 will move along the milled thread groove, and the grinding motor 6426 will drive the fixed plate 6425 and the grinding wheel 6424 to rotate, and the thread groove will be polished by the grinding wheel 6424 to reduce the difficulty of subsequent processing, and gas will be transported into the grinding wheel 6424 through an external air pump. On the one hand, the thread groove is cooled, and on the other hand, the debris generated by the grinding is blown away. Finally, during the process of grinding the thread groove by the grinding wheel 6424, the detection frame 64212 is always in contact with the grinding wheel 6424. When the diameter of the grinding wheel 6424 becomes smaller due to wear, the detection spring will undergo corresponding deformation, and the force received by the second piezoelectric sheet will be reduced. The staff can monitor the changes in the electrical signal generated by the second piezoelectric sheet to know the wear condition of the grinding wheel 6424 in real time, so as to replace the grinding wheel 6424 in time to avoid being affected during the grinding process.

[0037] The working principle of the present invention is as follows: before working, the workpiece is fixed by the chuck 3, the milling mechanism 6 is controlled to move by the first linear motor 4 and the second linear motor 5, and the tilt angle of the plurality of tool groups 641 is adjusted by the rotary motor 66 to facilitate the plurality of tool groups 641 to mill the workpiece. When the tilt angle of the plurality of tool groups 641 reaches the target tilt angle, the two third electromagnets 631 are turned on to make the two self-locking blocks 632 clamp the arc frame 633. When the workpiece is milled, the power motor 624 is turned on. The cutter disc 64 is driven to rotate in the fixed seat 61 through the power shaft 621 and the driving wheel 622. At this time, the cutter disc 64 will carry several groups of tools 641 to mill the workpiece. Finally, when several groups of tools 641 are milling the workpiece, the first linear motor 4 synchronously drives the milling mechanism 6 to move along the direction of the workpiece. At this time, the grinding wheel 6424 will move along the milled thread groove, and the fixed plate 6425 and the grinding wheel 6424 are driven to rotate through the grinding motor 6426. The thread groove is polished by the grinding wheel 6424 to reduce the difficulty of subsequent processing.

[0038] Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A roller screw multi-axis milling forming device, Features: The multi-axis milling forming device comprises a base (1), a body (2), a chuck (3), a first linear motor (4), a second linear motor (5), a milling mechanism (6) and a tailstock (7); the body (2) and the first linear motor (4) are both arranged above the base (1); the chuck (3) and the tailstock (7) are relatively arranged at two ends inside the body (2); the milling mechanism (6) is arranged between the chuck (3) and the tailstock (7); the second linear motor (5) is arranged above the first linear motor (4); the milling mechanism (6) comprises a fixed seat (61), a power mechanism, a cutter disc (64) and a support seat (65); the support seat (65) is provided with two groups, and the two groups of support seats (65) are relatively arranged on the second linear motor (5). At the upper two ends, the fixed seat (61) is arranged between two groups of support seats (65), the power mechanism is arranged above the fixed seat (61), the cutter disc (64) is arranged inside the fixed seat (61), and a plurality of groups of cutters (641) are arranged at one end of the cutter disc (64) close to the chuck (3), one group of the support seats (65) is provided with a positioning mechanism on the side away from the fixed seat (61), and another group of the support seats (65) is provided with a rotating motor (66) on the side away from the fixed seat (61), the fixed seat (61) is connected to the rotating motor (66) via a first rotating shaft (611), and the fixed seat (61) is connected to the positioning mechanism via a second rotating shaft (612), and the positioning mechanism has an angle detection function and an angle self-locking function.

2. A roller screw multi-axis milling forming device according to claim 1, Features: The positioning mechanism comprises a mounting seat (63), wherein a third electromagnet (631), a self-locking block (632), an arc frame (633), a positioning seat (634) and a connecting rod (635) are arranged inside the mounting seat (63); the positioning seat (634) is arranged on the arc frame (633); the second rotating shaft (612) is connected to the positioning seat (634) through the connecting rod (635); two groups of the third electromagnet (631) are arranged, and the two groups of the third electromagnet (631) are arranged relatively at the left and right ends inside the positioning seat (634); two groups of the self-locking blocks (632) are arranged, and the two groups of the self-locking blocks (632) are arranged relatively between the two groups of the third electromagnet (631); and each group of the self-locking blocks (632) is connected to the positioning seat (634) through a telescopic spring.

3. The roller screw multi-axis milling forming device according to claim 1, Features: A first conductive sheet (6331) is disposed at the side end of the arc-shaped frame (633), a second conductive block (636) is disposed at one end of the first conductive sheet (6331), and a first conductive block (6341) is disposed at one end of the positioning seat (634) close to the first conductive sheet (6331).

4. A roller screw multi-axis milling forming device according to claim 3, Features: The power mechanism comprises a power seat (62), wherein a power shaft (621), a linkage sleeve (6211), a driving wheel (622) and an emergency wheel (623) are arranged inside the power seat (62), wherein the power shaft (621) passes through the driving wheel (622) and the emergency wheel (623), wherein the power shaft (621) is connected to a power motor (624), wherein the driving wheel (622) is fixedly mounted on the power shaft (621), wherein the emergency wheel (623) is connected to the power shaft (621) via a linkage assembly, and wherein an emergency groove (644) and a driving groove (644) are arranged on the outer side of the cutter disc (64). (645), an annular wheel is arranged inside the emergency groove (644), and a first electromagnet (613) and a fourth electromagnet (643) are arranged on the side end of the annular wheel, the first electromagnet (613) is fixedly connected to the fixed seat (61), and the fourth electromagnet (643) is fixedly connected to the cutter disc (64), the annular wheel is connected to the emergency wheel (623) through an emergency belt, and the active groove (645) is connected to the active wheel (622) through an active belt, and the transmission ratio of the annular wheel and the emergency wheel (623) is the same as the transmission ratio of the active groove (645) and the active wheel (622).

5. A roller screw multi-axis milling forming device according to claim 4, Features: A linkage sleeve (6211) is provided at one end of the power shaft (621) close to the emergency wheel (623), and the linkage assembly comprises a second electromagnet (6231), a liquid storage tank (6232), a telescopic slot and a linkage block (6233). The telescopic slots are provided in two groups, and the two groups of telescopic slots are relatively arranged at two ends inside the emergency wheel (623). Two groups of linkage blocks (6233) are arranged in each group of telescopic slots, and the linkage blocks (6233) are connected to the telescopic slots through compression springs. The second electromagnet (6231) is arranged at the side end of the liquid storage tank (6232), and a movable plate and transmission fluid are arranged in the liquid storage tank (6232). The liquid storage tank (6232) is connected to the two groups of telescopic slots.

6. A roller screw multi-axis milling and forming device according to claim 5, Features: The emergency wheel (623) is also provided with a sensing groove (6234) inside, a sensing rod (6235) and a first piezoelectric sheet are provided inside the sensing groove (6234), compressed gas is provided between the sensing rod (6235) and the first piezoelectric sheet, one end of the sensing rod (6235) located in the sensing groove (6234) is wound with a sensing spring, and one end of the sensing rod (6235) extending out of the sensing groove (6234) is in contact with the linkage sleeve (6211).

7. A roller screw multi-axis milling and forming device according to any one of claims 1 to 6, Features: A grinding assembly (642) and a cylinder are disposed at one end of the cutter disc (64) away from the chuck (3); the grinding assembly (642) comprises a bracket (6421), an end cover (6422), an air guide tube (6423), a grinding wheel (6424), a fixed disc (6425) and a grinding motor (6426); a working end of the cylinder is connected to the bracket (6421); the fixed disc (6425) is disposed inside the bracket (6421); the grinding wheel (6424) is disposed outside the fixed disc (6425); and the end cover (6422) is disposed outside the fixed disc (6425). The grinding motor (6426) is arranged on both sides of the bracket (6421) opposite to each other, the grinding motor (6426) is connected to one end of the fixed disk (6425), the air guide pipe (6423) is connected to the other end of the fixed disk (6425), and the air guide pipe (6423) is supported by the end cover (6422), the outer side of the grinding wheel (6424) is provided with a plurality of through holes, the interior of the fixed disk (6425) is provided with an air guide channel, the air guide channel is connected to the plurality of through holes, and the air guide pipe (6423) is connected to an external air pump.

8. A roller screw multi-axis milling and forming device according to claim 7, Features: The upper end of the bracket (6421) is provided with a detection groove (64211) and a detection frame (64212), one end of the detection frame (64212) is arranged in the detection groove (64211), the detection frame (64212) is connected to the detection groove (64211) through a detection spring, a second piezoelectric sheet is arranged at one end of the detection groove (64211) close to the detection spring, and the other end of the detection frame (64212) is in contact with the grinding wheel (6424).

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