CN114290130B - Workpiece contour machining process - Google Patents
Workpiece contour machining process Download PDFInfo
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- CN114290130B CN114290130B CN202111606086.9A CN202111606086A CN114290130B CN 114290130 B CN114290130 B CN 114290130B CN 202111606086 A CN202111606086 A CN 202111606086A CN 114290130 B CN114290130 B CN 114290130B
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Abstract
The invention relates to the field of workpiece processing, in particular to a workpiece contour processing technology, which comprises the following steps of S1: preparing a tool bit for polishing the outer contour of the corresponding workpiece; s2: installing a tool bit on a main shaft of a numerical control machine tool; s3: a rotary tool capable of enabling the workpiece to rotate around the axis of the workpiece is installed on a workbench of the numerical control machine tool; s4: mounting a workpiece on a rotary tool; s5: start rotatory frock and digit control machine tool, the spindle of digit control machine tool drives the tool bit action, the work piece outline in the tool bit pairing rotation is processed, whole the in-process of polishing, do not need the manual work to go the operation, and after polishing, only need with the work piece from rotatory frock dismantle can, do not need to go the adjustment aircraft nose angle when using cylindrical grinder to add man-hour, efficiency is higher, do not have yet like cylindrical grinder the problem that need adjust relative position between aircraft nose and the tailstock, furthermore, the digit control machine tool can control main shaft and tool bit removal, thereby can polish to the outline of special-shaped workpiece.
Description
Technical Field
The invention relates to the field of workpiece machining, in particular to a workpiece contour machining process.
Background
In the process of processing the workpiece, the workpiece is limited by the material of the workpiece, the hardness of some workpieces is more than 90 degrees due to alloy, and the workpieces cannot be processed by common turning and milling but only can be ground. When a workpiece with a circular cross section is ground and processed, a cylindrical grinding machine is usually adopted for processing in the grinding process, and the workpiece rotates around the axis of the workpiece in the processing process.
The score die workpiece 1 is a tool for processing the easy open lid, and is made of an alloy with the hardness of more than 90 degrees, as shown in fig. 1, fig. 2 and fig. 3, fig. 1 and fig. 2 are score die workpieces 1 before polishing, fig. 3 is score die workpieces 1 after polishing, the score die workpieces 1 are cylinders, the score die workpieces 1 are provided with annular cutting edges 39, and the annular cutting edges 39 on the score die workpieces 1 are used for processing annular cuts on the easy open lid, so that a user can easily open the easy open lid. The grinding process of the scribing die workpiece 1 is to grind the outer side wall of the annular cutting edge 39, and the annular cutting edge 39 in fig. 1 is processed into the annular cutting edge 39 in fig. 2.
In the process of polishing and processing the scribing mold workpiece 1, a cylindrical grinding machine polishing process is generally adopted for processing, the scribing mold workpiece 1 is installed on a three-jaw chuck of the cylindrical grinding machine, then the angle of a machine head is adjusted, so that the outer side wall of an annular cutting edge 39 on the scribing mold workpiece 1 faces one side of a grinding wheel on the cylindrical grinding machine and is parallel to the grinding wheel, the three-jaw chuck drives the scribing mold workpiece 1 to rotate, then the outer side wall of the annular cutting edge 39 is abutted against the rotating grinding wheel, the outer side wall of the annular cutting edge 39 is polished, and finally the annular cutting edge 39 in the figure 2 is processed.
The grinding process of the cylindrical grinding machine has the following defects: 1. after the machining, the angle of the machine head needs to be adjusted and restored to the initial position, the whole adjusting process is long in time consumption, and the efficiency is low; 2. after machining, the cylindrical grinding machine needs to be adjusted to enable the center line of the machine head and the center line of the main shaft of the tailstock to be located on the same straight line, the adjusting process is difficult, and accumulated errors exist after frequent adjustment, so that the precision of a machine tool is influenced; 3. the manual operation in the processing process is not easy to control; 4. only a straight line profile with an angle can be processed, and the profile of a special-shaped workpiece with a round cross section cannot be processed (for example, a flanging roller workpiece 2 shown in fig. 4 is used for processing a can body needing flanging, such as a pop can, and the material of the flanging roller workpiece is that the alloy hardness is more than 90 degrees, the flanging roller workpiece 2 is in a special shape, which cannot be processed by a grinding process of a cylindrical grinding machine, and the flanging roller is required to be processed by generally adopting electric pulse discharge processing, so that the components are expensive).
Disclosure of Invention
In order to overcome the defects, the application provides a workpiece contour machining process.
The workpiece contour machining process provided by the application adopts the following technical scheme:
a workpiece contour machining process comprises the following steps:
s1: preparing a tool bit for polishing the outer contour of the corresponding workpiece;
s2: installing a tool bit on a main shaft of a numerical control machine tool;
s3: a rotary tool capable of enabling the workpiece to rotate around the axis of the rotary tool is installed on a workbench of the numerical control machine tool;
s4: mounting the workpiece on a rotary tool;
s5: and starting the rotating tool and the numerical control machine tool, driving the tool bit to move by a main shaft of the numerical control machine tool, and processing the outer contour of the workpiece in rotation by the tool bit.
Through adopting the above technical scheme, when polishing the work piece, the work piece that will polish is installed on rotatory frock, install the tool bit that is used for polishing this work piece on the main shaft of digit control machine tool again, start digit control machine tool and rotatory frock, the main shaft of digit control machine tool drives the tool bit action, rotatory frock drives the rotation of work piece original place, the tool bit uses with rotatory frock cooperation, polish the processing with the work piece, whole polishing in-process, do not need the manual work to go the operation, by the digit control machine tool, tool bit and rotatory frock cooperation are polished, and after polishing, only need with the work piece from rotatory frock dismantle can, do not need to go to adjust the aircraft nose angle like using cylindrical grinder to add man-hour, higher efficiency, do not have like cylindrical grinder the problem that need adjust the relative position between aircraft nose and the tailstock either, and, digit control machine tool can control main shaft and tool bit removal, thereby can polish to the outline of special-shaped work piece.
Optionally, the rotary tool comprises a fixing seat, a rotary motor, a rotary shaft and a three-jaw chuck, the fixing seat is arranged on the numerical control machine tool, the rotary shaft is connected to the fixing seat in a rotating mode, the three-jaw chuck is arranged on the rotary shaft, and the rotary motor is linked with the rotary shaft.
By adopting the technical scheme, when the rotary tool is used, a workpiece to be polished is installed on the three-jaw chuck, the rotary motor is started, the rotary motor drives the rotary shaft to rotate, and the rotary shaft drives the three-jaw chuck to rotate, so that the purpose of rotating the workpiece to be polished in situ is achieved.
Optionally, the rotating motor is linked with the rotating shaft through a transmission assembly, the transmission assembly comprises a transmission wheel and a transmission belt, the transmission wheel is connected to the rotating motor, and the transmission belt is sleeved on the rotating shaft and the transmission wheel and is tensioned by the rotating shaft and the transmission wheel.
Through adopting above-mentioned technical scheme, the rotating electrical machines links through drive assembly before with the rotation axis, compares with the rotating electrical machines lug connection rotation axis, can be in vertical direction save space.
Optionally, the rotary tool is arranged on the numerical control machine tool through a rotary driving device, the rotary driving device comprises a rotary disk and a driving piece used for driving the rotary disk to rotate, the rotary disk is rotatably connected to the numerical control machine tool, the output end of the driving piece is connected with the rotary disk, at least two groups of rotary tools are arranged, the rotary tools are in an annular array by taking the center line of the rotary disk as the center, and fixing seats on the rotary tools are arranged on the rotary disk.
By adopting the technical scheme, when a workpiece on one rotary tool is machined, workpieces to be machined can be installed on other rotary tools, after one workpiece is machined, the driving piece is started, the rotary disc rotates, the machined workpiece is moved away, the workpiece to be machined is moved to a machining position, the workpieces can be further polished, and the machining efficiency is high.
Optionally, the rotation driving device further includes a locking assembly, the locking assembly includes an outer ratchet ring, a ratchet and an installation block, the outer ratchet ring is disposed on the rotating disk, the installation block is disposed on the numerical control machine tool, the ratchet is hinged to the installation block through a pin, a torsion spring is sleeved on the pin, one free end of the torsion spring is connected to the installation block, the other free end of the torsion spring is connected to the ratchet, and the ratchet is engaged with the outer ratchet ring.
By adopting the technical scheme, in the rotating process of the rotating disk, the outer ratchet ring rotates along with the rotating disk, when the rotating disk stops rotating, the ratchet is clamped on the outer ratchet ring, and the ratchet is meshed with the outer ratchet ring, so that the possibility of continuing to rotate under the action of external force after the rotating disk stops can be reduced.
Optionally, locking Assembly sets up to two sets ofly, the opposite direction of the outer ratchet ring among two sets of locking Assembly, connect through adjusting part between the installation piece among two sets of locking Assembly, adjusting part includes adjusting motor, the lead screw, first nut piece and second nut piece, the vertical rotation of lead screw is connected on the digit control machine tool, adjusting motor sets up on the digit control machine tool and with the lead screw linkage, screw thread on the lead screw is two sections opposite direction's screw thread, one section screw thread department on the lead screw of first nut piece threaded connection, another section screw thread department on the lead screw of second nut piece threaded connection, first nut piece and second nut piece are in vertical direction and digit control machine tool sliding fit, the installation piece among a set of locking Assembly is connected on first nut piece, the installation piece among another set of locking Assembly is connected on second nut piece.
By adopting the technical scheme, when the rotating disc needs to be rotated, the adjusting motor is started, the adjusting motor drives the lead screw to rotate, the lead screw drives the first nut block and the second nut block to move towards opposite directions in the rotating process, the first nut block and the second nut block drive the mounting blocks connected with the first nut block and the second nut block to move in the moving process, so that ratchets in the two groups of locking assemblies are separated from the outer ratchet ring, the rotating disc is relieved of limitation, the adjusting motor is started again when the rotating disc does not need to rotate, the distance between the two nut blocks is readjusted, the first nut block and the second nut block drive the corresponding mounting blocks to move in the moving process, the ratchets are re-engaged with the outer ratchet ring, and the rotating disc can be neither locked because the directions of the outer ratchet rings in the two groups of locking assemblies are opposite, so that the rotating disc can rotate clockwise nor anticlockwise, and the purpose of locking the rotating disc is achieved.
Optionally, the fixed seat is detachably connected with the rotating disc.
Through adopting above-mentioned technical scheme, when rotatory frock broke down, can dismantle the fixing base from the rotary disk to make rotatory frock break away from the rotary disk, make things convenient for the staff to install rotatory frock.
Optionally, be equipped with middle groove and mounting groove on the rotary disk, middle groove sets up in rotary disk center department, and the number of mounting groove is the same with the number of fixing base, and the mounting groove uses the central line of rotary disk to be annular array as the center, and the fixing base is inserted and is established in the mounting groove, and middle inslot internal rotation is connected with the locking post, is connected with the arc check lock pole through the connecting rod on the locking post, and the number of connecting rod is the same with the number of fixing base, and the connecting rod sets up with the fixing base interval, is equipped with the locking mouth on the fixing base, and the arc check lock pole inserts in the locking mouth, be connected with the setting element that is used for advancing line location to the locking post on the rotary disk.
Through adopting the above technical scheme, when the installation fixing base, insert every fixing base in corresponding mounting groove, rotate the locking post, locking post drive arc check lock lever rotates, the arc check lock lever inserts corresponding fixing base rotating the in-process, thereby realize the purpose of fixed all fixing bases simultaneously, fix a position the locking post through the setting element, avoid the locking post to take place to rotate, influence the stability of fixing base after being installed, when the fixing base is dismantled to needs, rotate the locking post, the arc check lock lever shifts out from the fixing base, remove the spacing to the fixing base, thereby make the installation and the dismantlement process of fixing base convenient, and is fast.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when a workpiece is polished, the workpiece to be polished is installed on a rotary tool, then a tool bit for polishing the workpiece is installed on a main shaft of a numerical control machine, the numerical control machine and the rotary tool are started, the main shaft of the numerical control machine drives the tool bit to act, the rotary tool drives the workpiece to rotate in place, the tool bit is matched with the rotary tool for use, the workpiece is polished and processed, in the whole polishing process, manual operation is not needed, the numerical control machine, the tool bit and the rotary tool are matched for polishing, after polishing is finished, the workpiece only needs to be detached from the rotary tool, the angle of the machine head does not need to be adjusted when a cylindrical grinding machine is used for processing, the efficiency is higher, the problem that the relative position between the machine head and a tailstock needs to be adjusted like the cylindrical grinding machine does not exist, in addition, the numerical control machine can control the main shaft and the tool bit to move, and therefore the outer contour of the special-shaped workpiece can be polished;
2. when the rotary tool is used, a workpiece to be polished is installed on the three-jaw chuck, the rotary motor is started, the rotary motor drives the rotary shaft to rotate, and the rotary shaft drives the three-jaw chuck to rotate, so that the purpose of rotating the workpiece to be polished in situ is achieved;
3. when a workpiece on one rotary tool is machined, workpieces to be machined can be installed on other rotary tools, after one workpiece is machined, the driving piece is started, the rotary disc rotates to move the machined workpiece away, and the workpiece to be machined is moved to a machining position so as to continue to be polished and machined, so that the machining efficiency is high.
Drawings
Fig. 1 is a schematic structural view of a reticle mold workpiece before grinding in the prior art.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic diagram of a reticle mold workpiece after grinding in the prior art.
Fig. 4 is a schematic structural diagram of a flanging roller workpiece in the background art.
Fig. 5 is a schematic structural diagram for showing a positional relationship between the rotary tool and the numerically controlled machine tool in embodiment 1.
Fig. 6 is a schematic structural view for embodying the rotary tool in embodiment 1.
FIG. 7 is a schematic view of the structure of a tool tip used for grinding a work piece of a scribing die in embodiment 1.
FIG. 8 is a schematic view of the structure of a cutter head for grinding a burring roller work piece in example 1.
Fig. 9 is a schematic structural view for embodying the positional relationship between the rotating disk and the numerical control machine in embodiment 2.
Fig. 10 is a schematic structural view for embodying the positional relationship between the rotating disk and the outer ratchet ring in embodiment 2.
Fig. 11 is a schematic structural diagram for showing the connection relationship between the fixed base and the rotating disk in embodiment 2.
Fig. 12 is an enlarged view of a portion B in fig. 11.
Fig. 13 is a schematic structural diagram for embodying the positioning member in embodiment 2.
Fig. 14 is an enlarged view of a portion C of fig. 10.
Description of reference numerals:
1. a scribing die workpiece; 2. flanging the roller workpiece; 3. a numerical control machine tool; 4. a fixed seat; 5. a rotating electric machine; 6. a rotating shaft; 7. a three-jaw chuck; 8. a driving wheel; 9. a transmission belt; 10. an annular groove; 11. rotating the disc; 12. a drive member; 13. an intermediate tank; 14. mounting grooves; 15. positioning a groove; 16. a communication port; 17. a locking post; 18. an arc-shaped locking rod; 19. a connecting rod; 20. a locking port; 21. a positioning column; 22. positioning a plate; 23. a polygonal groove; 24. a polygonal raised block; 25. a hand wheel; 26. a polygonal through opening; 27. a polygonal block body; 28. an outer ratchet ring; 29. a ratchet; 30. mounting blocks; 31. a pin shaft; 32. a torsion spring; 33. a lead screw; 34. a first nut block; 35. a second nut block; 36. an adjusting bracket; 37. a guide bar; 38. adjusting the motor; 39. an annular blade; 40. a machine base.
Detailed Description
The embodiment of the application discloses a workpiece contour machining process.
Example 1
As shown in fig. 5, a process for processing a workpiece profile includes the following steps:
s1: preparing a tool bit for polishing the outer contour of the corresponding workpiece;
s2: the tool bit is arranged on a main shaft of the numerical control machine 3, in the embodiment, the numerical control machine 3 adopts a high-speed engraving and milling machine;
s3: a rotating tool capable of enabling the workpiece to rotate around the axis of the workpiece is installed on a workbench of the numerical control machine tool 3;
s4: mounting the workpiece on a rotary tool;
s5: and starting the rotating tool and the numerical control machine 3, driving the tool bit to move by a main shaft of the numerical control machine 3, and processing the outer contour of the workpiece in the rotation by the tool bit.
As shown in fig. 5 and 6, the rotary tool comprises a fixed seat 4, a rotary motor 5, a rotary shaft 6 and a three-jaw chuck 7, the fixed seat 4 is connected on a workbench of the numerical control machine tool 3, the rotary shaft 6 is rotatably connected at one end of the fixed seat 4, the other end of the fixed seat 4 is connected with a machine base 40, the three-jaw chuck 7 is connected at one end of the rotary shaft 6 far away from the fixed seat 4, the rotary motor 5 is arranged on the machine base 40, and the rotary motor 5 is linked with the rotary shaft 6 through a transmission assembly.
As shown in fig. 6, the transmission assembly includes a transmission wheel 8 and a transmission belt 9, the transmission wheel 8 is connected to a motor shaft of the rotating motor 5, an annular groove 10 is provided on the rotating shaft 6, the transmission belt 9 is sleeved on the rotating shaft 6 and the transmission wheel 8 and is tensioned by the rotating shaft 6 and the transmission wheel 8, and the transmission belt 9 sleeved on the rotating shaft 6 is located in the annular groove 10 so as to limit the transmission belt 9.
The implementation principle of the embodiment 1 is as follows: when polishing the work piece, the work piece that will polish is installed on three-jaw chuck 7, the tool bit that will be used for polishing this work piece again is installed on the main shaft of digit control machine tool 3, start digit control machine tool 3 and rotating electrical machines 5, the main shaft of digit control machine tool 3 drives the tool bit action, rotating electrical machines 5 drives drive wheel 8 and rotates, drive wheel 8 drives rotation axis 6 and three-jaw chuck 7 through drive belt 9 and rotates, thereby make the work piece cover self axle center original place rotation, the tool bit uses with rotatory frock cooperation, polish the processing with the work piece.
Specifically, when the scribing mold workpiece 1 is polished, a tool bit for polishing the scribing mold workpiece 1 as shown in fig. 7 is adopted, the end of the tool bit for polishing the scribing mold workpiece 1 is in a truncated cone shape, in the process of polishing the scribing mold workpiece 1, the tool bit for polishing the scribing mold workpiece 1 is installed on a spindle of a numerical control machine tool 3, the scribing mold workpiece 1 is installed on a three-jaw chuck 7, the position of the tool bit for polishing the scribing mold workpiece 1 is adjusted through the numerical control machine tool 3, the side wall of the end, which is in the truncated cone shape, of the tool bit is attached to the outer side wall of an annular cutting edge on the scribing mold workpiece 1, the numerical control machine tool 3 and the rotating motor 5 are started, the tool bit and the scribing mold workpiece 1 both rotate in situ, and therefore the purpose of polishing the scribing mold workpiece 1 is achieved.
When a cross section of a flange roller of a special-shaped workpiece with a circular shape is polished, a tool bit for polishing a flange roller workpiece 2 is adopted as shown in fig. 8, the end of the tool bit for polishing the flange roller workpiece 2 is arranged in a fillet manner, in the process of polishing the flange roller workpiece 2, the tool bit for polishing the flange roller workpiece 2 is installed on a main shaft of a numerical control machine tool 3, the flange roller workpiece 2 is installed on a three-jaw chuck 7, the position of the tool bit for polishing the flange roller workpiece 2 is adjusted through the numerical control machine tool 3, the fillet portion of the tool bit is attached to the outer side wall of the flange roller workpiece 2, the numerical control machine tool 3 and a rotating motor 5 are started, the flange roller workpiece 2 rotates in situ, the numerical control machine tool 3 controls the tool bit for polishing the flange roller workpiece 2 to rotate and move, the tool bit can polish the outer contour of the flange roller workpiece 2, and the purpose of polishing the flange roller workpiece 2 is achieved.
In conclusion, in the process of polishing the workpiece, manual operation is not needed, the workpiece is polished by the numerical control machine tool 3, the tool bit and the rotating tool in a matched mode, after polishing is finished, the workpiece is only needed to be detached from the three-jaw chuck 7, the angle of the machine head is not needed to be adjusted when the cylindrical grinding machine is used for machining, efficiency is higher, the problem that the relative position between the machine head and the tailstock needs to be adjusted like the cylindrical grinding machine does not exist, in addition, the numerical control machine tool 3 can control the main shaft and the tool bit to move, and therefore the outer contour of the special-shaped workpiece can be polished.
Example 2
A workpiece contour machining process, as shown in fig. 9 and 10, which is different from embodiment 1 in that a rotary tool is disposed on a workbench of a numerical control machine tool 3 through a rotary driving device, and the rotary driving device includes a rotary disk 11, a driving member 12 for driving the rotary disk 11 to rotate, and a locking assembly.
As shown in fig. 9 and 10, the rotating disc 11 is rotatably connected to the numerical control machine tool 3, the output end of the driving element 12 is connected to the rotating disc 11, specifically, the driving element 12 is a motor, the driving element 12 is disposed on the table of the numerical control machine tool 3, and the rotating disc 11 is connected to the motor shaft of the driving element 12.
As shown in fig. 9 and 10, at least two groups of rotary tools are provided, in this embodiment, three groups of rotary tools are provided, the three groups of rotary tools are in an annular array with the center line of the rotary disc 11 as the center, and the fixing seat 4 on the rotary tool is detachably connected to the rotary disc 11.
As shown in fig. 11, be equipped with middle groove 13 and mounting groove 14 on the rotary disk 11, middle groove 13 sets up in rotary disk 11 center department, the number of mounting groove 14 is the same with the number of fixing base 4, the one end and the rotary disk 11 lateral wall intercommunication of mounting groove 14, mounting groove 14 uses the central line of rotary disk 11 to be the annular array as the center, fixing base 4 inserts and establishes in mounting groove 14, still be equipped with constant head tank 15 on the rotary disk 11, the number of constant head tank 15 equals with the number of mounting groove 14, constant head tank 15 is fan-shaped, constant head tank 15 sets up with mounting groove 14 interval, communicate through two intercommunication mouths 16 between adjacent constant head tank 15 and the mounting groove 14, intercommunication mouth 16 is the arc opening, the one end and the middle groove 13 intercommunication of constant head tank 15.
As shown in fig. 11 and 12, a locking column 17 is rotatably connected in the middle groove 13, a center line of the locking column 17, a center line of the middle groove 13 and a center line of the rotating disk 11 are overlapped, an arc-shaped locking rod 18 is connected to the locking column 17, the locking column 17 is connected to the arc-shaped locking rods 18 through a connecting rod 19, the number of the connecting rods 19 is the same as that of the fixing seat 4, the connecting rods 19 are annularly arrayed on the locking column 17 with the center line of the locking column 17 as the center, the connecting rods 19 are located in the positioning grooves 15, two arc-shaped locking rods 18 are connected to each connecting rod 19, the two arc-shaped locking rods 18 connected to the connecting rods 19 correspond to the communication ports 16 one by one to one, the movement tracks of the arc-shaped locking rods 18 pass through the communication ports 16 corresponding to the connecting rods 19, the connecting rods 19 are spaced from the fixing seat 4, the fixing seat 4 is provided with locking ports 20, the locking ports 20 are arc-shaped, the locking ports 20 are communicated with the communication ports 16, and the arc-shaped locking rods 18 penetrate through the communication ports 16 and are inserted into the fixing seat 4 through the locking ports 20.
As shown in fig. 12 and 13, the rotating disc 11 is connected with a positioning member for positioning the locking post 17, the positioning member includes a positioning post 21 and a positioning plate 22, the locking post 17 is provided with a polygonal groove 23, one end of the positioning post 21 is connected with a polygonal protruding block 24 matching the polygonal groove 23, the other end is connected with a hand wheel 25, the polygonal protruding block 24 is inserted into the polygonal groove 23, the positioning plate 22 is arranged on the rotating disc 11 and blocks the notch of the middle groove 13, the positioning plate 22 is provided with a polygonal through opening 26, the positioning post 21 is connected with a polygonal block 27 matching the polygonal through opening 26, when the positioning post 21 abuts against the locking post 17, the polygonal block 27 is located in the polygonal through opening 26, the thickness of the polygonal block 27 is smaller than the height of the polygonal protruding block 24, and when the polygonal block 27 is separated from the polygonal through opening 26, the polygonal protruding block 24 is still located in the polygonal groove 23.
When installing fixing base 4 on the rotatory frock, insert every fixing base 4 in corresponding mounting groove 14, pulling hand wheel 25, hand wheel 25 drives reference column 21, polygon protruding piece 24 and polygon block 27 rebound, polygon block 27 shifts out from polygonal opening 26, polygon protruding piece 24 still is located polygon recess 23 this moment, rotate hand wheel 25, hand wheel 25 drives reference column 21 and rotates, through the cooperation of polygon protruding piece 24 and polygon recess 23, reference column 21 drives locking column 17 and rotates, locking column 17 drives connecting rod 19 and rotates at the rotation in-process, connecting rod 19 drives arc check lock lever 18 and rotates, arc check lock lever 18 passes intercommunication mouth 16 and inserts in fixing base 4, promote hand wheel 25 downwards again, reference column 21 conflicts locking column 17, polygon block 27 reinserts in polygon opening 26, thereby to locking column 17, connecting rod 19 and arc check lock lever 18 carry on spacingly, avoid arc check lock lever 18 to shift out from locking mouth 20, influence the stability after fixing base 4 installs, this moment, accomplish the installation of fixing base 4. And all the fixed seats 4 on the rotating disc 11 can be installed at the same time, so that the installation efficiency is high.
When the fixing seat 4 on the rotating disk 11 is disassembled, the hand wheel 25 is pulled, the polygonal block 27 is moved out from the polygonal through hole 26, the locking column 17 is released from being positioned, the hand wheel 25 is rotated, the arc-shaped locking rod 18 is moved out from the locking port 20, the fixing seat 4 is released from being positioned, and the fixing seat 4 is disassembled.
As shown in fig. 9, 10 and 14, the locking assemblies are arranged in two groups, each locking assembly comprises an outer ratchet ring 28, ratchets 29 and a mounting block 30, the outer ratchet rings 28 are arranged on the rotating disc 11, the directions of the outer ratchet rings 28 in the two groups of locking assemblies are opposite, the mounting block 30 is arranged on the numerical control machine tool 3, the ratchets 29 are hinged on the mounting block 30 through pin shafts 31, torsion springs 32 are sleeved on the pin shafts 31, one free ends of the torsion springs 32 are connected with the mounting block 30, the other free ends of the torsion springs 32 are connected with the ratchets 29, and the ratchets 29 are meshed with the outer ratchet rings 28.
As shown in fig. 9, fig. 10 and fig. 14, the mounting blocks 30 in the two sets of locking assemblies are connected through the adjusting assembly, the adjusting assembly includes an adjusting motor 38, a lead screw 33, a first nut block 34 and a second nut block 35, the lead screw 33 is vertically and rotatably connected to the numerical control machine 3, an adjusting frame 36 is connected to a workbench of the numerical control machine 3, the lead screw 33 is rotatably connected to the adjusting frame 36, the adjusting motor 38 is disposed on the workbench of the numerical control machine 3, a motor shaft of the adjusting motor 38 is connected to the lead screw 33, threads on the lead screw 33 are two opposite threads, a first thread of the first nut block 34 is threadedly connected to the lead screw 33, a second thread of the second nut block 35 is threadedly connected to the lead screw 33, the first nut block 34 and the second nut block 35 are in sliding fit with the numerical control machine 3 in the vertical direction, specifically, a guide rod 37 is connected to the adjusting frame 36, the guide rod 37 penetrates through the first nut block 34 and the second nut block 35, so as to guide the moving direction of the first nut block 34 and the second nut block 35, the mounting blocks 30 in the first set of the mounting assembly, and the mounting blocks 30 in the second locking assembly, and the mounting blocks 35.
The driving part 12 can drive the rotating disc 11 to rotate under the working state; when the rotating disc 11 needs to be rotated, the adjusting motor 38 is started, the adjusting motor 38 drives the first nut block 34 and the second nut block 35 to move towards the directions away from each other through the lead screw 33, the first nut block 34 drives the mounting block 30 and the ratchet 29 connected with the first nut block to move in the moving process, the second nut block 35 drives the mounting block 30 and the ratchet 29 connected with the second nut block to move in the moving process, therefore, the ratchet 29 and the outer ratchet ring 28 in the two groups of locking assemblies are separated, the limit of the rotating disc 11 is released, and the rotating disc 11 can rotate smoothly.
When the rotary disk 11 does not need to rotate, the adjusting motor 38 is started again, the distance between the two nut blocks is adjusted again, the ratchet 29 on the first nut block 34 is meshed with the corresponding outer ratchet ring 28, the ratchet 29 on the second nut block 35 is meshed with the corresponding outer ratchet ring 28, and the directions of the outer ratchet rings 28 in the two groups of locking assemblies are opposite, so that the rotary disk 11 can be locked, the rotary disk 11 can not rotate clockwise or anticlockwise, and the purpose of locking the rotary disk 11 is achieved.
The implementation principle of the embodiment 2 is as follows: when a workpiece on one rotary tool is machined, workpieces to be machined can be installed on other rotary tools, after one workpiece is machined, the adjusting motor 38 is started to separate the ratchet 29 from the outer ratchet ring 28, the driving part 12 is started, the rotary disc 11 rotates, the workpieces on the rotary disc 11 rotate along with the rotary disc 11, the machined workpieces are moved away, the workpieces to be machined are moved to the machining position, the adjusting motor 38 is started again to enable the ratchet 29 to be meshed with the outer ratchet ring 28, the rotary disc 11 is positioned, the workpieces can be further polished, machining efficiency is high, the machined workpieces can be detached and then installed, and machining efficiency is further improved.
Claims (4)
1. A workpiece contour machining process is characterized in that: the method comprises the following steps:
s1: preparing a tool bit for polishing the outer contour of the corresponding workpiece;
s2: installing a tool bit on a main shaft of a numerical control machine tool (3);
s3: a rotary tool capable of enabling the workpiece to rotate around the axis of the workpiece is installed on a workbench of the numerical control machine tool (3);
s4: mounting a workpiece on a rotary tool;
s5: starting the rotating tool and the numerical control machine (3), wherein a spindle of the numerical control machine (3) drives the tool bit to move, and the tool bit processes the outer contour of the rotating workpiece;
the rotary tool comprises a fixed seat (4), a rotary motor (5), a rotary shaft (6) and a three-jaw chuck (7), wherein the fixed seat (4) is arranged on the numerical control machine tool (3), the rotary shaft (6) is rotationally connected to the fixed seat (4), the three-jaw chuck (7) is arranged on the rotary shaft (6), and the rotary motor (5) is linked with the rotary shaft (6);
the rotary tool is arranged on the numerical control machine tool (3) through a rotary driving device, the rotary driving device comprises a rotary disk (11) and a driving piece (12) used for driving the rotary disk (11) to rotate, the rotary disk (11) is rotatably connected to the numerical control machine tool (3), the output end of the driving piece (12) is connected with the rotary disk (11), at least two groups of rotary tools are arranged, the rotary tools are in an annular array by taking the central line of the rotary disk (11) as the center, and a fixing seat (4) on each rotary tool is arranged on the rotary disk (11);
the fixed seat (4) is detachably connected with the rotating disc (11); groove (13) and mounting groove (14) in the middle of being equipped with on rotary disk (11), middle groove (13) sets up in rotary disk (11) center department, the number of mounting groove (14) is the same with the number of fixing base (4), mounting groove (14) use the central line of rotary disk (11) to be the ring array as the center, fixing base (4) are inserted and are established in mounting groove (14), middle groove (13) internal rotation is connected with locking post (17), be connected with arc check lock lever (18) through connecting rod (19) on locking post (17), the number of connecting rod (19) is the same with the number of fixing base (4), connecting rod (19) and fixing base (4) interval set up, be equipped with locking mouth (20) on fixing base (4), arc check lock lever (18) are inserted in locking mouth (20), be connected with the setting element that is used for fixing a position locking post (17) on rotary disk (11).
2. A process for profiling a workpiece as claimed in claim 1, wherein: the rotating motor (5) is linked with the rotating shaft (6) through a transmission assembly, the transmission assembly comprises a transmission wheel (8) and a transmission belt (9), the transmission wheel (8) is connected to the rotating motor (5), and the transmission belt (9) is sleeved on the rotating shaft (6) and the transmission wheel (8) and tensioned by the rotating shaft (6) and the transmission wheel (8).
3. A process for profiling a workpiece according to claim 1, characterised in that: the rotary driving device further comprises a locking assembly, the locking assembly comprises an outer ratchet ring (28), ratchets (29) and an installation block (30), the outer ratchet ring (28) is arranged on the rotary disk (11), the installation block (30) is arranged on the numerical control machine tool (3), the ratchets (29) are hinged to the installation block (30) through pin shafts (31), torsion springs (32) are sleeved on the pin shafts (31), the installation block (30) is connected with one free end of each torsion spring (32), the ratchets (29) are connected with the other free end, and the ratchets (29) are meshed with the outer ratchet ring (28).
4. A process for profiling a workpiece according to claim 3, wherein: the locking assemblies are arranged into two groups, the directions of outer ratchet rings (28) in the two groups of locking assemblies are opposite, installation blocks (30) in the two groups of locking assemblies are connected through an adjusting assembly, the adjusting assembly comprises an adjusting motor (38), a lead screw (33), a first nut block (34) and a second nut block (35), the lead screw (33) is vertically connected to a numerical control machine (3) in a rotating mode, the adjusting motor (38) is arranged on the numerical control machine (3) and is linked with the lead screw (33), threads on the lead screw (33) are threads with two opposite directions, one section of threads of the first nut block (34) are connected to the lead screw (33) in a threaded mode, the other section of threads of the second nut block (35) are connected to the lead screw (33) in a threaded mode, the first nut block (34) and the second nut block (35) are in a sliding fit with the numerical control machine (3) in the vertical direction, the installation blocks (30) in the group of locking assemblies are connected to the first nut block (34), and the installation blocks (30) in the other group of locking assemblies are connected to the second nut block (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111606086.9A CN114290130B (en) | 2021-12-25 | 2021-12-25 | Workpiece contour machining process |
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| CN202111606086.9A CN114290130B (en) | 2021-12-25 | 2021-12-25 | Workpiece contour machining process |
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