CN117817387B - Cutting tool clamping device - Google Patents
Cutting tool clamping device Download PDFInfo
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- CN117817387B CN117817387B CN202410253262.2A CN202410253262A CN117817387B CN 117817387 B CN117817387 B CN 117817387B CN 202410253262 A CN202410253262 A CN 202410253262A CN 117817387 B CN117817387 B CN 117817387B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 93
- 238000001125 extrusion Methods 0.000 claims description 26
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 23
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 23
- 241001330002 Bambuseae Species 0.000 claims description 23
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 23
- 239000011425 bamboo Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of clamping devices, but not limited to, discloses a cutting tool clamping device, which comprises a driving motor arranged on a machine tool spindle, a mounting shaft detachably arranged on an output shaft of the driving motor, a collet inserted into the mounting shaft, and a fastening nut arranged on the outer wall of the mounting shaft in a matched manner through internal and external threads, wherein a compensation unit used for filling the internal gap of the collet is arranged in the mounting shaft, the compensation unit comprises a T-shaped rod arranged in the mounting shaft, a filling part sleeved on the wall of the T-shaped rod and used for filling the internal gap of the collet, and the filling part is elastically connected with a shaft shoulder, and the compensation unit also comprises a driving part arranged on the T-shaped rod. The cutting tool clamping device can be quickly adapted to tools with various lengths and various diameters so as to meet diversified processing requirements, greatly improve the adaptability and flexibility of work, improve the working efficiency and reduce the cost and time investment.
Description
Technical Field
The present invention relates to the field of clamping devices, and more particularly to a cutting tool clamping device.
Background
Profiling devices are commonly used in machine tools that enable the machine tool to perform a machining operation according to a predetermined profile, which device is capable of reproducing the shape of a model or mould so that the tool of the machine tool can cut along the profile corresponding to the surface of the model, wherein the tool of the machine tool is removably mounted on the machine tool by means of clamping means.
In the mounting and fixing of cylindrical tools such as milling cutters, drills, boring cutters, etc., referring to fig. 1-3, a conventional clamping device for cylindrical cutting tools is generally used, which comprises a mounting shaft 1, a collet 2 and a tightening nut 3, the collet 2 also being called a collet chuck, and the specific working procedure is that firstly, the type and size of the collet 2 are adapted to the shank diameter of the cutting tool to be mounted, then the collet 2 is placed inside the tightening nut 3, the rattling sound is representative of the correct placement of the collet 2, then the collet 2 with the tool is placed in a conical hole or clamping position of the mounting shaft 1, and then the tightening nut 3 is manually screwed into a thread on the mounting shaft 1, when a resistance feeling is felt during the rotation of the tightening nut 3, the tightening nut 3 starts to be slightly clamped, at which time the tightening of the tightening nut 3 is continued using a suitable wrench or other tool (such as a special pliers, a clamping hand, etc.). During this process the tightening nut 3 presses the collet 2 into the conical bore of the mounting shaft 1, creating a clamping force for the cutting tool by contraction of the inner wall of the collet 2, preventing the tool from loosening or slipping during cutting.
Referring to fig. 4, according to the machining depth of the workpiece, it may be required to extend the cutter out of the collet 2 by a length sufficient to reach the bottom of the workpiece, at this time, if the cutter is not long enough, the cutter is suspended and clamped inside the collet 2, and since the hard alloy hardness of the cutting cutter is far higher than that of the collet 2, the cutter is easily clamped and fixed for a long time, so that the inside of the collet 2 is easily worn, the gap inside the collet 2 is not supported by the cutter handle, and the cutting cutter suspended and clamped easily leaves a step on the inner wall of the collet 2, thereby damaging the straightness of the collet 2, and finally losing precision, and meanwhile, the service life of the cutter is also rapidly reduced, and even the cutter is broken during the machining process.
Disclosure of Invention
In view of the problems in the prior art that if a cutter is not long enough, the cutter is suspended and clamped in the collet, and in the process of clamping and fixing the cutter for a long time, the suspended and clamped cutting cutter is easy to leave a step on the inner wall of the collet, and finally the precision is lost, meanwhile, the service life of the cutter is also rapidly reduced, and even the cutter breakage phenomenon occurs in the processing process, the cutting cutter clamping device is provided.
In one aspect of the present application, there is provided a cutting tool holding apparatus, which aims to: the sleeve is pulled to drive the filling part to fill the gap inside the collet chuck, so that additional support is provided for the tool handle, the phenomenon of steps on the inner wall of the collet chuck is effectively avoided, the bending stress of the tool is reduced, the service life of the tool is prolonged, and the possibility of breaking the tool is effectively reduced.
The technical scheme of the invention is as follows: the cutting tool clamping device comprises a driving motor arranged on a main shaft of a machine tool, a mounting shaft detachably arranged on an output shaft of the driving motor, a collet inserted into the mounting shaft, and a fastening nut arranged on the outer wall of the mounting shaft in a matched manner through internal and external threads, wherein a compensation unit for filling the gap in the collet is arranged in the mounting shaft, and comprises a T-shaped rod arranged in the mounting shaft, a shaft shoulder arranged on the wall of the T-shaped rod, and a filling part sleeved on the wall of the T-shaped rod and used for filling the gap in the collet, and the filling part is elastically connected with the shaft shoulder;
the compensation unit also comprises a driving part arranged on the T-shaped rod, and the driving part is used for driving the T-shaped rod to slide towards the direction close to the collet chuck and fixing the sliding position of the T-shaped rod.
By adopting the scheme, through the compensation unit that sets up, this device can be adapted to the cutter of multiple length and multiple diameter fast to reply diversified processing requirement, promoted adaptability and the flexibility of work by a wide margin, also improved work efficiency simultaneously, reduced the input of cost and time.
Further, the shaft wall of the installation shaft is provided with a thread groove, the inside of the thread groove is connected with a threaded rod through internal and external thread matching, and the end part of the threaded rod is in contact with the output shaft of the driving motor.
By adopting the scheme, the mounting shaft is matched with the threaded rod through the threaded groove, so that the mounting shaft and the output shaft of the driving motor can be detachably connected.
Further, the drive part is including setting up in the connecting plate of T shape pole wall, set up in the installation axle shaft wall and with the inside intercommunication of installation axle, the sleeve of installation axle shaft wall is located to the cover to and the extension spring of installation axle shaft wall is located to the cover, and the outer wall of connecting plate and the inner wall slip laminating of intercommunication groove, the one end and the telescopic inner wall fixed connection of T shape pole are kept away from to the connecting plate, the one end fixed connection of T shape pole is kept away from to extension spring's one end and connecting plate, the other end and the axle wall fixed connection of installation axle of extension spring.
By adopting the scheme, when the cutting tool is not long enough and the suspension clamping occurs in the collet, the filling part can extend into the collet to fill the gap in the collet by sliding the T-shaped rod in the direction close to the collet.
Further, the drive part is still including setting up in the mounting box of mounting axle inner wall, pass through the torsional spring rotation and install the locating plate that is close to a connecting plate side at the mounting box, set up in the inside dog that is used for restricting locating plate rotation direction of mounting box, set up in the inside first voussoir of mounting box, elastic mounting in the inside sliding plate of mounting box, elastic mounting in the inside second voussoir of mounting box, set up in the limiting plate inside limiting plate of mounting box, set up in the limiting plate keep away from the slider of first voussoir side, set up in the mounting box inner wall and supply gliding spout of slider, set up in the first extrusion pole of sliding plate outer wall, set up in the limiting plate be close to the fixed slot that supplies first extrusion pole to insert to establish in the second extrusion pole of first voussoir side, set up in the second extrusion pole of limiting plate be close to first voussoir one side supply the relief groove that second extrusion pole inserts to establish, set up in the bracing piece of limiting plate lateral wall, and the reset spring of cover is located bracing piece wall, and reset spring's one end and limiting plate's lateral wall fixed connection, reset spring's the other end and the inner wall fixed connection of mounting box, the sliding plate is close to a side and the connecting plate outer wall that is close to a connecting plate and a side of first voussoir fixed connection's side and a wedge, the corresponding to the fixed connection of the connecting plate of side of first side and the connecting plate.
By adopting the scheme, through the cooperation between the structures, the sleeve can be pulled in the direction close to the collet chuck to fix the position of the T-shaped rod, so that the filling part is not moved or loosened in the cutting process, and the rigidity and stability of the cutter are enlarged.
Further, the driving part further comprises a first elastic part arranged inside the mounting box and a second elastic part arranged inside the mounting box, one end of the first elastic part is fixedly connected with the inner wall of the mounting box, the other end of the first elastic part is fixedly connected with one side surface of the sliding plate away from the connecting plate, one end of the second elastic part is fixedly connected with the inner wall of the mounting box, and the other end of the second elastic part is fixedly connected with one side surface of the second wedge block away from the connecting plate.
By adopting the scheme, the sliding plate, the first wedge block and the stop block can be driven to reset through the first elastic piece, and the second wedge block can be driven to reset through the second elastic piece.
Further, fill the part including the cover locate the first flexible section of thick bamboo of T shape pole wall, the compression spring of cover locating T shape pole wall to and set up in the outside second flexible subassembly of first flexible section of thick bamboo, and the one end and the shaft shoulder of compression spring are close to one side fixed connection of collet chuck, the other end and the section of thick bamboo wall fixed connection of first flexible section of thick bamboo of compression spring.
By adopting the scheme, the clamping range of the part collet chuck is about 1mm in the diameter of the cutter handle, and the clamping range of the part collet chuck can be suitable for cutting tools with different cutter handle diameters, for example, the ER high-precision elastic collet chuck can be used for clamping the cutting tools with the range of 1-13mm, and further can be suitable for cutting tools with more cutter handle diameters.
Further, the second flexible subassembly is including setting up in the outside second flexible section of thick bamboo of first flexible section of thick bamboo, set up in the flexible groove of the flexible section of thick bamboo inner wall of second, set up in the flexible spring of flexible inslot portion, and slidable mounting is in the inside connecting block of flexible inslot, and the one end of flexible spring and the inner wall fixed connection of flexible groove, the other end of flexible spring and the outer wall fixed connection of connecting block, the flexible subassembly of second is provided with a plurality ofly, a plurality of flexible subassemblies of second set gradually in the outside of first flexible section of thick bamboo from inside to outside, the connecting block is close to the section of thick bamboo wall fixed connection of the second flexible section of thick bamboo of a side of first flexible section of thick bamboo and adjacent being close to, wherein, the connecting block in the flexible subassembly of second of innermost is close to a side and the section of thick bamboo wall fixed connection of first flexible section of thick bamboo.
By adopting the scheme, the collet chuck of the ER high-precision elastic chuck which can adapt to tool shanks with different diameters can be used for filling tools with shorter lengths through the filling parts, and the collet chuck of the ER high-precision elastic chuck can be suitable for tools with more common tool shank diameters and can be compatible with the collet chucks of tools with more sizes, so that the application range of equipment is improved.
Further, the invention also provides a method for using the cutting tool clamping device, which comprises the following steps:
Firstly, confirming that the model and the size of the collet are matched with the diameter of the handle of the cutting tool to be mounted, then placing the collet into the fastening nut, making a click to indicate that the collet is placed in a correct position, and then placing the handle of the cutting tool into the collet, wherein at the moment, whether the length of the handle of the cutting tool in the collet can be satisfied with the length of the collet on the premise that the cutting process of the cutting tool is ensured can be clearly observed;
If the length of the cutter handle inside the collet is shorter than that of the collet, a worker firstly puts the collet with the cutter into a conical hole or a clamping part of the mounting shaft, then manually screws the fastening nut into a thread on the mounting shaft, when the fastening nut is sensed to have resistance in the process of rotating, the collet starts to slightly clamp the cutter, at the moment, the diameter of the inner wall of the collet is almost close to the diameter of the cutter handle of the cutting cutter, and the inner wall of the collet is kept in a straight line state;
Then, the staff pulls the sleeve in the direction approaching to the collet, so that the first telescopic cylinder and the second telescopic cylinder which are not larger than the diameter of the inner wall of the collet can extend into the collet under the drive of the T-shaped rod to fill the gap in the collet, and the second telescopic cylinder which is larger than the diameter of the inner wall of the collet is retained outside the collet;
meanwhile, the outer wall of the connecting plate is mutually abutted against the outer wall of the positioning plate, and the stop block limits the rotation direction of the positioning plate, so that the positions of the connecting plate and the T-shaped rod are fixed;
Finally, a proper wrench or other tools such as special pliers, pliers and the like are used for continuously screwing the fastening nut, the fastening nut continuously presses the collet chuck into the conical hole of the mounting shaft in the process, and the clamping force of the cutting tool is generated through the contraction of the inner wall of the collet chuck, so that the mounting and fixing of the cutting tool are completed;
When the cutting tool needs to be disassembled, a worker continuously pulls the sleeve, the connecting plate extrudes the first wedge block, the stop block is fixed in the mounting box, the stop block does not limit the rotation direction of the positioning plate any more, then, the worker loosens the sleeve, the first wedge block and the stop block can be driven to reset, the T-shaped rod and the filling part also return to the initial positions, and finally, the collet chuck and the cutting tool are unscrewed.
By adopting the scheme, the device can be quickly adapted to cutters with various lengths and various diameters so as to meet diversified processing requirements, greatly improve the working adaptability and flexibility, improve the working efficiency and reduce the cost and time investment.
Furthermore, if the length of the shank of the cutter inside the collet is smaller than the length of the collet, the operator does not need to pull the sleeve, and the operator can directly find out a proper wrench or other tools such as special pliers, pliers hands and the like to continuously screw the fastening nut, and directly unscrew the collet and the cutter when the cutter is required to be disassembled.
By adopting the scheme, when the length of the cutter handle inside the collet chuck is equal to the length of the collet chuck, no extra action is needed to be operated, and the convenience of using the device is further improved.
The invention has the beneficial effects that:
When the cutter is positioned in the collet, the length of the cutter handle is shorter than that of the collet, a worker can drive the filling part to extend into the collet by pulling the sleeve towards the direction close to the collet, so that the filling part can provide additional support for the cutter handle, the collet can effectively clamp the filling part, the filling part plays a role in transmitting the clamping force of the collet, the cutter handle of the cutting cutter is clamped sufficiently and uniformly, the phenomenon of steps on the inner wall of the collet is effectively avoided, the bending stress of the cutter is reduced, the service life of the cutter is prolonged, and the possibility of cutter breakage is effectively reduced.
When the cutter is positioned in the collet, the length of the cutter handle is shorter than that of the collet, a worker pulls the sleeve in the direction close to the collet, the first telescopic cylinder and the second telescopic cylinder which are not larger than the diameter of the inner wall of the collet can extend into the collet under the drive of the T-shaped rod, gaps in the collet are filled, the second telescopic cylinder which is larger than the diameter of the inner wall of the collet is reserved outside the collet, and accordingly the collet which is suitable for cutter handles with different diameters can be used for the ER high-precision collet.
When the length of the cutter handle inside the collet is smaller than the length of the collet, a worker does not need to pull the sleeve, a proper wrench or other tools such as a special pliers, a pliers hand and the like are directly found to continuously screw the fastening nut, and when the cutting cutter needs to be disassembled, the collet and the cutting cutter are directly unscrewed, so that when the length of the cutter handle inside the collet is smaller than the length of the collet, no additional action is required to be operated, and the convenience of using the device is further improved.
Drawings
FIG. 1 is a perspective view of the prior art;
FIG. 2 is a prior art mounting schematic of a collet;
FIG. 3 is an exploded view of the prior art;
FIG. 4 is a force analysis diagram of a prior art collet;
FIG. 5 is an overall perspective view of the present invention;
FIG. 6 is a schematic view of the installation of a T-bar in accordance with the present invention;
FIG. 7 is a perspective view of a T-bar of the present invention;
FIG. 8 is a schematic view of the installation of the drive components of the present invention;
fig. 9 is a perspective view of a driving part in the present invention;
FIG. 10 is a schematic view of the mounting of the stop of the present invention;
FIG. 11 is a cross-sectional view of the mounting case of the present invention;
FIG. 12 is an internal schematic view of the mounting box of the present invention;
FIG. 13 is an internal schematic view of a shim member according to the present invention;
FIG. 14 is a perspective view of a shim member according to the present invention;
Fig. 15 is an initial state diagram of the T-bar of the present invention.
In the figure:
1. A mounting shaft; 2. a collet; 3. a fastening nut; 4. a driving motor; 5.a compensation unit; 6. a T-bar; 7. a shaft shoulder; 8. a filling member; 9. a driving part; 10. a connecting plate; 11. a sleeve; 12. a tension spring; 13. a mounting box; 14. a positioning plate; 15. a stop block; 16. a first wedge; 17. a second wedge; 18. a sliding plate; 19. a first extrusion rod; 20. a second extrusion rod; 21. a limiting plate; 22. a fixing groove; 23. a release groove; 24. a slide block; 25. a chute; 26. a support rod; 27. a return spring; 28. a first elastic member; 29. a second elastic member; 30. a first telescopic cylinder; 31. a connecting block; 32. a second telescopic cylinder; 33. a telescopic spring; 34. a compression spring; 35. a threaded rod; 36. a thread groove; 37. a communication groove; 38. a telescopic slot.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Embodiment 1 referring to fig. 5 to 12, for a first embodiment of the present invention, there is provided a cutting tool clamping device comprising a driving motor 4 provided on a spindle of a machine tool, a mounting shaft 1 detachably mounted on an output shaft of the driving motor 4, a collet 2 inserted inside the mounting shaft 1, and a fastening nut 3 mounted on an outer wall of the mounting shaft 1 by an internal and external screw fitting.
Specifically, the driving motor 4 is fixedly mounted on the machine tool spindle, the driving motor 4 can be a direct current motor or an alternating current servo motor which are common in the prior art, the direct current motor is preferred, the specific model of the driving motor can be determined according to actual use requirements, excessive description is not made here, and the mounting shaft 1 can be detachably connected with the output shaft of the driving motor 4 through the cooperation of the thread groove 36 and the threaded rod 35.
The work flow of clamping and fixing the tool shank of the cutting tool by the collet chuck 2, the mounting shaft 1 and the fastening nut 3 is as follows: firstly, the type and size of the collet 2 are confirmed to be adapted to the shank diameter of the cutting tool to be mounted, then the collet 2 is placed inside the tightening nut 3, a clicking sound is made to represent that the collet 2 is placed in a correct position, then the collet 2 with the tool is placed in a conical hole or clamping position of the mounting shaft 1, then the tightening nut 3 is manually screwed into the thread on the mounting shaft 1, when a resistance feeling is felt during the rotation of the tightening nut 3, the tightening nut 3 is continued to be screwed on by using a suitable wrench or other tool (such as a special pliers, a pliers hand, etc.), which represents that the collet 2 starts slightly clamping the tool. During this process the tightening nut 3 presses the collet 2 into the conical bore of the mounting shaft 1, creating a clamping force for the cutting tool by contraction of the inner wall of the collet 2, preventing the tool from loosening or slipping during cutting.
Referring to fig. 5 to 6, a screw groove 36 is formed in the shaft wall of the installation shaft 1, a threaded rod 35 is connected to the inside of the screw groove 36 through internal and external screw fitting, and the end of the threaded rod 35 is abutted against the output shaft of the driving motor 4.
Specifically, threaded rod 35 and thread groove 36 all are provided with a plurality of, a plurality of threaded rods 35 symmetric distribution is in the outside of driving motor 4 output shaft, the one end that the driving motor 4 output shaft was kept away from to threaded rod 35 is seted up flutedly, through inserting specific instrument in the recess, it rotates to rotate tool drive threaded rod 35 again, then can make the tip of threaded rod 35 to be close to driving motor 4's output shaft direction and remove, until the tip of a plurality of threaded rods 35 carries out stable centre gripping to driving motor 4's output shaft, conversely, when needs are torn down this device from the lathe, through reverse rotation threaded rod 35, make the tip of a plurality of threaded rods 35 and driving motor 4's output shaft separation, can tear this device down from driving motor 4's output shaft.
Referring to fig. 6-7, a compensation unit 5 for filling the internal gap of the collet 2 is arranged in the mounting shaft 1, the compensation unit 5 comprises a T-shaped rod 6 arranged in the mounting shaft 1, a shaft shoulder 7 arranged on the wall of the T-shaped rod 6, and a filling component 8 sleeved on the wall of the T-shaped rod 6 and used for filling the internal gap of the collet 2, and the filling component 8 is elastically connected with the shaft shoulder 7.
The T-shaped rod 6 is slidably mounted inside the mounting shaft 1, and the shaft shoulder 7 is fixedly mounted on the rod wall of the T-shaped rod 6.
When the cutting tool is not long enough and the floating clamping occurs in the collet 2, the filling member 8 can be inserted into the collet 2 by sliding the T-bar 6 in a direction approaching the collet 2, thereby filling the gap in the collet 2.
Referring to fig. 8-12, the compensation unit 5 further includes a driving member 9 provided on the T-bar 6, and the driving member 9 is configured to drive the T-bar 6 to slide in a direction approaching the collet 2, and fix a position of the T-bar 6 after sliding.
The driving part 9 comprises a connecting plate 10 arranged on the rod wall of the T-shaped rod 6, a communicating groove 37 which is formed in the shaft wall of the mounting shaft 1 and communicated with the inside of the mounting shaft 1, a sleeve 11 sleeved on the shaft wall of the mounting shaft 1, and a tension spring 12 sleeved on the shaft wall of the mounting shaft 1, wherein the outer wall of the connecting plate 10 is in sliding fit with the inner wall of the communicating groove 37, one end of the connecting plate 10, which is far away from the T-shaped rod 6, is fixedly connected with the inner wall of the sleeve 11, one end of the tension spring 12 is fixedly connected with one end of the connecting plate 10, which is far away from the T-shaped rod 6, and the other end of the tension spring 12 is fixedly connected with the shaft wall of the mounting shaft 1.
Specifically, one end of the connecting plate 10 is fixedly connected with the rod wall of the T-shaped rod 6, one end of the connecting plate 10, which is far away from the T-shaped rod 6, is fixedly connected with the inner wall of the sleeve 11, and the outer wall of the connecting plate 10 is in sliding fit with the inner wall of the communication groove 37, so that the tightness of the inside of the communication groove 37 is ensured.
Through pulling sleeve 11 to the direction that is close to collet chuck 2, connecting plate 10 can drive T shape pole 6 to slide to the direction that is close to collet chuck 2, then T shape pole 6 can drive filling part 8 and stretch into the inside of collet chuck 2, filling part 8 can be the extension bar the same with cutting tool's handle of a knife diameter, filling part 8 can fill up the inside space of collet chuck 2, thereby filling part 8 provides extra support for the handle of a knife, collet chuck 2 can carry out effective centre gripping to filling part 8, consequently filling part 8 plays the effect of conveying collet chuck 2 centre gripping, ensure that cutting tool's handle of a knife is fully and evenly pressed from both sides, effectively avoided the phenomenon of step appearing on the collet chuck 2 inner wall, the bending stress of cutter has been lightened, cutter life is prolonged, and the possibility of breaking the sword has effectively been reduced.
Referring to fig. 8-12, the driving part 9 further comprises a mounting box 13 arranged on the inner wall of the mounting shaft 1, a positioning plate 14 rotatably mounted on the mounting box 13 through a torsion spring and close to one side surface of the connecting plate 10, a stop 15 arranged in the mounting box 13 and used for limiting the rotation direction of the positioning plate 14, a first wedge 16 arranged in the mounting box 13, a sliding plate 18 elastically mounted in the mounting box 13, a second wedge 17 elastically mounted in the mounting box 13, a limiting plate 21 arranged in the mounting box 13, a sliding block 24 arranged on one side surface of the limiting plate 21 far away from the first wedge 16, a sliding groove 25 formed on the inner wall of the mounting box 13 and used for sliding the sliding block 24, a first extrusion rod 19 arranged on the outer wall of the sliding plate 18, a fixing groove 22 formed on one side surface of the limiting plate 21 and close to the first wedge 19 and used for inserting the first extrusion rod 19, a second extrusion rod 20 arranged on the outer wall of the second wedge 17, a release groove 23 formed on one side of the limiting plate 21 and close to the first wedge 16, a supporting rod 26 arranged on the side of the limiting plate 21, a sliding block 24 and a sliding block 24 arranged on one side of the sliding rod 26, a reset spring 27 arranged on the reset spring 27 fixedly connected with one side of the connecting plate 10, and the reset wedge 10 and the other side of the reset plate 10 is fixedly connected with one side of the side wall 18, which is close to the side of the sliding plate 10, and the reset wedge plate 10 is fixedly connected with one side of the side wall plate 10, which is close to the side of the side wall plate 18 and the side wall 18 is fixed with the side wall corresponding one side of the side wall plate 10.
Specifically, the installation box 13 is fixedly installed on the inner wall of the installation shaft 1, the stop block 15 is slidably installed in the installation box 13, the first wedge block 16 is slidably installed in the installation box 13, the sliding plate 18 is used for connecting the stop block 15 and the first wedge block 16, the limiting plate 21 is slidably installed in the installation box 13, the sliding block 24 is fixedly installed on one side surface, far away from the first wedge block 16, of the limiting plate 21, the first extrusion rod 19 is fixedly installed on the outer wall of the sliding plate 18, the second extrusion rod 20 is fixedly installed on the outer wall of the second wedge block 17, the supporting rod 26 is fixedly installed on the side wall of the limiting plate 21, the length of the baffle 15 extending out of the installation box 13 is short, and the connecting plate 10 cannot contact the baffle 15 during sliding.
Through the cooperation between the above-mentioned structure, can be after pulling sleeve 11 to the direction that is close to collet chuck 2, fix the position of T shape pole 6, help guaranteeing that filling part 8 can not remove or become flexible in the cutting process, enlarged the rigidity and the stability of cutter, reduce because the error that vibration or displacement caused, help increasing the security of this device, reduce the risk that unexpected emergence.
Referring to fig. 12, the driving part 9 further includes a first elastic member 28 disposed inside the mounting box 13, and a second elastic member 29 disposed inside the mounting box 13, where one end of the first elastic member 28 is fixedly connected to an inner wall of the mounting box 13, the other end of the first elastic member 28 is fixedly connected to a side surface of the sliding plate 18 away from the connecting plate 10, one end of the second elastic member 29 is fixedly connected to an inner wall of the mounting box 13, and the other end of the second elastic member 29 is fixedly connected to a side surface of the second wedge 17 away from the connecting plate 10.
Specifically, the first elastic element 28 and the second elastic element 29 may be a spring piece or an elastic plate commonly used in the prior art, preferably a spring piece, and through the first elastic element 28, the sliding plate 18, the first wedge block 16 and the stop block 15 can be driven to return, and through the second elastic element 29, the second wedge block 17 can be driven to return.
In the use process, firstly, the model and the size of the collet chuck 2 are confirmed to be matched with the handle diameter of the cutting tool to be mounted, then the collet chuck 2 is placed in the fastening nut 3, the rattling sound represents that the collet chuck 2 is placed in a correct position, and then the handle of the cutting tool is placed in the collet chuck 2, at the moment, whether the length of the handle of the cutting tool in the collet chuck 2 can be satisfied with the length of the collet chuck 2 on the premise that the cutting process of the cutting tool is ensured can be clearly observed.
If the cutter is located inside the collet 2 and the length of the shank is shorter than the length of the collet 2, the collet 2 with the cutter is first placed into the tapered hole or clamping portion of the mounting shaft 1, then the fastening nut 3 is manually threaded into the thread on the mounting shaft 1, and when the resistance feeling is felt during the rotation of the fastening nut 3, the slight clamping of the cutter is started by the collet 2, at this time, the diameter of the inner wall of the collet 2 is almost similar to the shank diameter of the cutting cutter, and the inner wall of the collet 2 is kept in a straight state.
Then the staff pulls sleeve 11 to the direction that is close to collet chuck 2, connecting plate 10 can drive T shape pole 6 to slide to the direction that is close to collet chuck 2, then T shape pole 6 can drive filling part 8 and stretch into the inside of collet chuck 2, filling part 8 can be the extension bar the same with cutting tool's handle diameter, filling part 8 fills the inside space of collet chuck 2, simultaneously, connecting plate 10 is to the in-process that is close to collet chuck 2, connecting plate 10 promotes locating plate 14, drive locating plate 14 to rotate to the direction that is close to collet chuck 2, when connecting plate 10 slides to the separation with locating plate 14, under the elasticity effect of torsional spring, can drive locating plate 14 and reset, contact with dog 15, afterwards, under the elasticity effect of extension spring 12, can drive connecting plate 10 to slide to the direction that is kept away from collet chuck 2, until the outer wall of connecting plate 10 and the outer wall of locating plate 14 contradict each other, realize the fixed to connecting plate 10 and T shape pole 6 position.
Finally, a proper wrench or other tool (such as a special pliers, a wrench hand, etc.) is used to continuously screw the fastening nut 3, during this process, the fastening nut 3 continuously presses the collet 2 into the tapered hole of the mounting shaft 1, and the clamping force of the cutting tool is generated by the contraction of the inner wall of the collet 2, so as to prevent the tool from loosening or slipping during the cutting process, and complete the mounting and fixing of the cutting tool.
When the cutting tool needs to be disassembled, a worker continuously drives the connecting plate 10 to move towards the direction close to the collet chuck 2 by pulling the sleeve 11, the connecting plate 10 extrudes the first wedge block 16, the first wedge block 16 is pressed into the mounting box 13, the sliding plate 18 and the stop block 15 are driven to retract into the mounting box 13, at the moment, the first extrusion rod 19 contacts with the inclined surface of the inner wall of the fixing groove 22, the limiting plate 21 is driven to move towards the direction close to the reset spring 27, the reset spring 27 is extruded until the first extrusion rod 19 moves to the transverse part of the fixing groove 22, the limiting plate 21 can be driven to reset under the elastic force of the reset spring 27, then the first extrusion rod 19 can be clamped at the transverse groove part of the fixing groove 22, the stop block 15 can be fixed in the mounting box 13, and the stop block 15 does not limit the rotation direction of the positioning plate 14.
Then, the staff loosens sleeve 11, under the elasticity effect of extension spring 12, drive sleeve 11 and connecting plate 10 to the direction of keeping away from collet chuck 2 and remove, connecting plate 10 promotes locating plate 14 to the direction rotation of keeping away from collet chuck 2, until connecting plate 10 and locating plate 14 separate, locating plate 14 resets under the elasticity effect of torsional spring, when connecting plate 10 slides to the one side that intercommunication groove 37 kept away from collet chuck 2, connecting plate 10 extrudees second voussoir 17, drive second voussoir 17 to impress the inside of installing box 13, then second extrusion rod 20 can extrude the inclined plane of relieving groove 23, drive limiting plate 21 to be close to reset spring 27's direction and remove, then, the transverse part of fixed slot 22 no longer blocks first extrusion rod 19, under the elasticity effect of first elastic component 28, can drive first voussoir 16 and dog 15 and reset, T shape pole 6 and filling part 8 also get back to initial position, finally, unscrew collet chuck 2 and cutting tool can.
If the length of the shank of the tool located inside the collet 2 is equal to the length of the collet 2, the operator does not need to pull the sleeve 11, and can directly find a proper wrench or other tools (such as a special pliers, a pliers hand, etc.) to continue screwing the fastening nut 3, and can directly unscrew the collet 2 and the cutting tool when the cutting tool needs to be disassembled.
Thereby fill part 8 can provide extra support for the handle of a knife, and collet chuck 2 can carry out effective centre gripping to fill part 8, consequently fill part 8 play the effect of conveying collet chuck 2 centre gripping, ensure that cutting tool's handle of a knife is fully and evenly pressed from both sides, effectively avoided the phenomenon that appears the step on collet chuck 2 inner wall, alleviateed the bending stress of cutter, extension cutter life to effectively reduced the possibility of breaking the cutter.
Embodiment 2, referring to fig. 13-15, is a second embodiment of the present invention, which differs from the first embodiment in that: the filling part 8 comprises a first telescopic cylinder 30 sleeved on the rod wall of the T-shaped rod 6, a compression spring 34 sleeved on the rod wall of the T-shaped rod 6 and a second telescopic assembly arranged outside the first telescopic cylinder 30, one end of the compression spring 34 is fixedly connected with one side surface of the shaft shoulder 7, which is close to the collet chuck 2, and the other end of the compression spring 34 is fixedly connected with the cylinder wall of the first telescopic cylinder 30.
Specifically, the clamping range of the part collet 2 is about 1mm of the diameter of the cutter handle, and the clamping range of the part elastic collet 2 can be suitable for cutting tools with different cutter handle diameters, for example, an ER20 high-precision elastic collet, the clamping range can be 1-13mm, and then the device can be suitable for cutting tools with more cutter handle diameters, and for the collet 2, the device can be suitable for tools with more cutter handle diameters while filling tools with shorter lengths through the filling part 8.
Referring to fig. 14 to 15, the second telescopic assembly includes a second telescopic cylinder 32 disposed outside the first telescopic cylinder 30, a telescopic slot 38 opened on an inner wall of the second telescopic cylinder 32, a telescopic spring 33 disposed inside the telescopic slot 38, and a connection block 31 slidably mounted inside the telescopic slot 38, one end of the telescopic spring 33 is fixedly connected with the inner wall of the telescopic slot 38, the other end of the telescopic spring 33 is fixedly connected with an outer wall of the connection block 31, the second telescopic assembly is provided with a plurality of second telescopic assemblies, the plurality of second telescopic assemblies are sequentially disposed outside the first telescopic cylinder 30 from inside to outside, one side surface of the connection block 31 close to the first telescopic cylinder 30 is fixedly connected with a cylinder wall of the second telescopic cylinder 32 adjacent to one side of the first telescopic cylinder 30, wherein the connection block 31 in the innermost second telescopic assembly is fixedly connected with a cylinder wall of the first telescopic cylinder 30 close to one side surface of the first telescopic cylinder 30.
Specifically, the second telescopic cylinder 32 is located outside the first telescopic cylinder 30, and in the case that the model and the size of the collet 2 are confirmed to be adapted to the shank diameter of the cutting tool to be mounted, the cylinder wall diameters of the first telescopic cylinder 30 and the second telescopic cylinder 32 are matched with the shank diameter of the common cutting tool, the first telescopic cylinder 30 is suitable for the cutting tool with the smallest shank diameter common in the clamping range of the collet 2, and by the provision of the plurality of second telescopic cylinders 32, the cutting tool with more different shank diameters can be adapted in the clamping range of the collet 2.
During the use, when the staff pulls sleeve 11 to the direction that is close to collet chuck 2, drive T shape pole 6 to the direction that is close to collet chuck 2 and slide, first telescopic tube 30 and a plurality of second telescopic tube 32 are synchronous to the direction that is close to collet chuck 2, when first telescopic tube 30 and second telescopic tube 32 are kept away from the one end of fastening nut 3 with collet chuck 2, be not greater than collet chuck 2 inner wall diameter's first telescopic tube 30 and second telescopic tube 32, can stretch into collet chuck 2's inside under the drive of T shape pole 6, fill the inside space of collet chuck 2, be greater than collet chuck 2 inner wall diameter's second telescopic tube 32 then be detained in collet chuck 2's outside, make detain at collet chuck 2 outside second telescopic tube 32, can slide along the first telescopic tube 30 or second telescopic tube 32's that stretches into collet chuck 2 inside outermost, through the compression spring 34 who sets up, can be in collet chuck 2 inside space when less, for first telescopic tube 30 or second telescopic tube 32, finally, T shape pole 6 can drive the inside of collet chuck 2 and stretch into collet chuck 2 inside space, and fill for collet chuck 2 inside space, and can be adjusted to the inside to first telescopic tube 30 and second telescopic tube 32, finally, the inside diameter is adjusted to the inside of collet chuck 2.
Therefore, the collet chuck 2 which can adapt to tool shanks with different diameters aiming at the ER20 high-precision elastic chuck can be adapted to tools with more common tool shanks with different diameters while filling tools with shorter lengths through the filling parts 8, the collet chuck 2 which can be compatible with tools with more sizes can be also realized, the application range of equipment is improved, the requirement and time for tool replacement are reduced when different processing tasks are carried out, the requirement of the filling parts 8 on the independent collet chucks 2 with various sizes is reduced, and the cost expenditure is effectively reduced.
Above-mentioned, this device can adapt to the cutter of multiple length and multiple diameter fast to the processing requirement of reply diversification has promoted adaptability and the flexibility of work by a wide margin, has also improved work efficiency simultaneously, has reduced the input of cost and time.
The rest of the structure is the same as that of embodiment 1.
Embodiment 3, referring to fig. 5-15, for a third embodiment of the present invention, there is provided: a method of using a cutting tool holding apparatus, comprising the steps of:
Step one: firstly, confirming that the type and the size of the collet 2 are adapted to the diameter of the handle of the cutting tool to be mounted, then placing the collet 2 into the fastening nut 3, making a click to indicate that the collet 2 is placed in a correct position, and then placing the handle of the cutting tool into the collet 2, wherein on the premise of ensuring the cutting process, whether the length of the handle of the cutting tool in the collet 2 can be satisfied with the length of the collet 2 can be clearly observed;
Step two: if the length of the shank of the cutter inside the collet 2 is shorter than that of the collet 2, firstly, the collet 2 with the cutter is put into a conical hole or a clamping part of the mounting shaft 1, then the fastening nut 3 is manually screwed into a thread on the mounting shaft 1, when resistance is felt in the process of rotating the fastening nut 3, the collet 2 starts to slightly clamp the cutter, at the moment, the diameter of the inner wall of the collet 2 is almost similar to that of the shank of the cutter, and the inner wall of the collet 2 is kept in a straight state;
Then, the worker pulls the sleeve 11 towards the direction close to the collet 2, the connecting plate 10 can drive the T-shaped rod 6 to slide towards the direction close to the collet 2, the first telescopic cylinder 30 and the plurality of second telescopic cylinders 32 are driven to synchronously move towards the direction close to the collet 2, when the first telescopic cylinder 30 and the second telescopic cylinders 32 are contacted with one end of the collet 2 far away from the fastening nut 3, the first telescopic cylinder 30 and the second telescopic cylinder 32 which are not larger than the diameter of the inner wall of the collet 2 can extend into the collet 2 under the drive of the T-shaped rod 6, the gap inside the collet 2 is filled, the second telescopic cylinder 32 which is larger than the diameter of the inner wall of the collet 2 is retained outside the collet 2, so that the second telescopic cylinder 32 outside the collet 2 can slide along the wall of the first telescopic cylinder 30 or the second telescopic cylinder 32 which extends into the outermost layer inside the collet 2, a moving space is provided for the first telescopic cylinder 30 or the second telescopic cylinder 32 when the gap inside the collet 2 is smaller through the compression spring 34, and finally, the T-shaped rod 6 can drive the first telescopic cylinder 30 and the second telescopic cylinder 32 to extend into the gap inside the collet 2;
Meanwhile, in the process that the connecting plate 10 slides towards the direction close to the collet 2, the connecting plate 10 pushes the positioning plate 14 to drive the positioning plate 14 to rotate towards the direction close to the collet 2, when the connecting plate 10 slides to be separated from the positioning plate 14, the positioning plate 14 can be driven to reset under the elastic force of the torsion spring to be contacted with the stop block 15, and then the connecting plate 10 can be driven to slide towards the direction far away from the collet 2 under the elastic force of the extension spring 12 until the outer wall of the connecting plate 10 and the outer wall of the positioning plate 14 are mutually abutted, so that the positions of the connecting plate 10 and the T-shaped rod 6 are fixed;
Finally, a proper wrench or other tools (such as special pliers, pliers and the like) are used for continuously screwing the fastening nut 3, in the process, the fastening nut 3 continuously presses the collet 2 into the conical hole of the mounting shaft 1, and the clamping force of the cutting tool is generated through the contraction of the inner wall of the collet 2, so that the tool is prevented from loosening or slipping in the cutting process, and the mounting and the fixing of the cutting tool are completed;
Step three: when the cutting tool needs to be disassembled, a worker continuously pulls the sleeve 11, the sleeve 11 continuously drives the connecting plate 10 to move towards the direction close to the collet chuck 2, the connecting plate 10 extrudes the first wedge block 16, the first wedge block 16 is pressed into the mounting box 13, the sliding plate 18 and the stop block 15 are driven to retract into the mounting box 13, at the moment, the first extrusion rod 19 contacts with the inclined surface of the inner wall of the fixed groove 22, the limiting plate 21 is driven to move towards the direction close to the reset spring 27, the reset spring 27 is extruded until the first extrusion rod 19 moves to the transverse part of the fixed groove 22, the limiting plate 21 can be driven to reset under the elastic force of the reset spring 27, and then the first extrusion rod 19 can be clamped at the transverse groove part of the fixed groove 22, so that the stop block 15 can be fixed in the mounting box 13, and the stop block 15 does not limit the rotating direction of the positioning plate 14 any more;
Then, the worker loosens the sleeve 11, under the action of the elasticity of the extension spring 12, the sleeve 11 and the connecting plate 10 are driven to move in the direction away from the collet chuck 2, the connecting plate 10 pushes the positioning plate 14 to rotate in the direction away from the collet chuck 2 until the connecting plate 10 is separated from the positioning plate 14, the positioning plate 14 is reset under the action of the elasticity of the torsion spring, when the connecting plate 10 slides to the side, away from the collet chuck 2, of the communicating groove 37, the connecting plate 10 presses the second wedge block 17 to drive the second wedge block 17 to be pressed into the mounting box 13, then the second extrusion rod 20 can press the inclined surface of the release groove 23 to drive the limiting plate 21 to move in the direction close to the reset spring 27, then the transverse part of the fixing groove 22 can not stop the first extrusion rod 19, under the action of the elasticity of the first elastic piece 28, the T-shaped rod 6 and the filling part 8 can be driven to reset to the initial position, and finally the collet chuck 2 and the cutting tool can be screwed out;
Step four: if the length of the shank of the tool located inside the collet 2 is equal to the length of the collet 2, the operator does not need to pull the sleeve 11, and can directly find a proper wrench or other tools (such as a special pliers, a pliers hand, etc.) to continue screwing the fastening nut 3, and can directly unscrew the collet 2 and the cutting tool when the cutting tool needs to be disassembled.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a cutting tool clamping device, includes setting up at epaxial driving motor (4) of lathe main shaft, can dismantle install installation axle (1) on driving motor (4) output shaft, insert establish at inside collet chuck (2) of installation axle (1) to and install fastening nut (3) at installation axle (1) outer wall through the internal and external screw thread cooperation, its characterized in that: the device comprises a mounting shaft (1), a compensation unit (5) used for filling the internal gap of the collet (2) is arranged in the mounting shaft (1), the compensation unit (5) comprises a T-shaped rod (6) arranged in the mounting shaft (1), a shaft shoulder (7) arranged on the rod wall of the T-shaped rod (6), and a filling component (8) sleeved on the rod wall of the T-shaped rod (6) and used for filling the internal gap of the collet (2), wherein the filling component (8) is elastically connected with the shaft shoulder (7);
The compensating unit (5) further comprises a driving component (9) arranged on the T-shaped rod (6), and the driving component (9) is used for driving the T-shaped rod (6) to slide towards the direction close to the collet chuck (2) and fixing the sliding position of the T-shaped rod (6);
The driving component (9) comprises a connecting plate (10) arranged on the rod wall of the T-shaped rod (6), a communication groove (37) formed in the shaft wall of the mounting shaft (1) and communicated with the inside of the mounting shaft (1), a sleeve (11) sleeved on the shaft wall of the mounting shaft (1), and a tension spring (12) sleeved on the shaft wall of the mounting shaft (1), wherein the outer wall of the connecting plate (10) is in sliding fit with the inner wall of the communication groove (37), one end of the connecting plate (10) far away from the T-shaped rod (6) is fixedly connected with the inner wall of the sleeve (11), one end of the tension spring (12) is fixedly connected with one end of the connecting plate (10) far away from the T-shaped rod (6), and the other end of the tension spring (12) is fixedly connected with the shaft wall of the mounting shaft (1);
the driving part (9) further comprises a mounting box (13) arranged on the inner wall of the mounting shaft (1), a positioning plate (14) which is rotatably arranged on the mounting box (13) and is close to one side surface of the connecting plate (10) through a torsion spring, a stop block (15) which is arranged inside the mounting box (13) and is used for limiting the rotation direction of the positioning plate (14), a first wedge block (16) which is arranged inside the mounting box (13), a sliding plate (18) which is elastically arranged inside the mounting box (13), a second wedge block (17) which is elastically arranged inside the mounting box (13), a limiting plate (21) which is arranged inside the mounting box (13), a sliding groove (24) which is arranged on the inner wall of the mounting box (13) and is far away from one side surface of the first wedge block (16) and is used for sliding the sliding of the sliding block (24), a first extrusion rod (19) which is arranged on the outer wall of the sliding plate (18), a fixed groove (22) which is arranged on one side surface of the limiting plate (21) and is close to the first wedge block (16) and is used for inserting the first extrusion rod (19), a second wedge block (17) which is elastically arranged inside the mounting box (17) and a limiting plate (21) which is arranged on the outer wall of the second extrusion rod (20) which is elastically arranged inside the mounting box (13) and a side wall which is close to the first extrusion rod (21) and a side wall which is arranged on the side of the limiting rod (20, the reset spring (27) is sleeved on the rod wall of the support rod (26), one end of the reset spring (27) is fixedly connected with the side wall of the limiting plate (21), the other end of the reset spring (27) is fixedly connected with the inner wall of the mounting box (13), one side surface of the sliding plate (18) close to the connecting plate (10) is fixedly connected with the outer wall of the first wedge block (16), one side surface of the sliding plate (18) close to the connecting plate (10) is fixedly connected with the outer wall of the stop block (15), and the position of the second wedge block (17) corresponds to one side of the communication groove (37);
The driving part (9) further comprises a first elastic piece (28) arranged inside the mounting box (13) and a second elastic piece (29) arranged inside the mounting box (13), one end of the first elastic piece (28) is fixedly connected with the inner wall of the mounting box (13), the other end of the first elastic piece (28) is fixedly connected with one side surface of the sliding plate (18) away from the connecting plate (10), one end of the second elastic piece (29) is fixedly connected with the inner wall of the mounting box (13), and the other end of the second elastic piece (29) is fixedly connected with one side surface of the second wedge block (17) away from the connecting plate (10).
2. The cutting tool holding apparatus as set forth in claim 1, wherein: the shaft wall of the installation shaft (1) is provided with a thread groove (36), a threaded rod (35) is connected inside the thread groove (36) through internal and external thread matching, and the end part of the threaded rod (35) is in contact with the output shaft of the driving motor (4).
3. The cutting tool holding apparatus as set forth in claim 2, wherein: the filling component (8) comprises a first telescopic cylinder (30) sleeved on the rod wall of the T-shaped rod (6), a compression spring (34) sleeved on the rod wall of the T-shaped rod (6), and a second telescopic assembly arranged outside the first telescopic cylinder (30), one end of the compression spring (34) is fixedly connected with one side surface, close to the collet (2), of the shaft shoulder (7), and the other end of the compression spring (34) is fixedly connected with the cylinder wall of the first telescopic cylinder (30).
4. A cutting tool holding apparatus as claimed in claim 3, wherein: the second flexible subassembly is including setting up in the outside flexible section of thick bamboo (32) of first flexible section of thick bamboo (30), set up in the flexible groove (38) of the inside wall of flexible section of thick bamboo (32), set up in the inside flexible spring (33) of flexible groove (38), and slidable mounting is in the inside connecting block (31) of flexible groove (38), and the one end and the inner wall fixed connection of flexible groove (38) of flexible spring (33), the other end and the outer wall fixed connection of connecting block (31) of flexible spring (33), the flexible subassembly of second is provided with a plurality of, a plurality of flexible subassemblies of second set gradually in the outside of first flexible section of thick bamboo (30) from inside to outside, the connecting block (31) is close to the section of thick bamboo wall fixed connection of a side of the flexible section of thick bamboo (32) of a side of first flexible section of thick bamboo (30) and adjacent second, wherein, the connecting block (31) in the second flexible subassembly of the innermost is close to the side of first flexible section of thick bamboo (30) and the section of thick bamboo wall fixed connection of first flexible section of thick bamboo (30).
5. A method of using the cutting tool holding apparatus of claim 4, comprising the steps of:
firstly, confirming that the model and the size of the collet (2) are adapted to the diameter of the handle of the cutting tool to be mounted, then placing the collet (2) into the fastening nut (3), making a click to indicate that the collet (2) is placed in a correct position, and then placing the handle of the cutting tool into the collet (2), wherein the length of the handle of the cutting tool in the collet (2) can be clearly observed on the premise that the cutting process is ensured, and whether the length of the handle of the cutting tool in the collet (2) can be satisfied with the length of the collet (2);
If the length of the cutter handle inside the collet chuck (2) is shorter than the length of the collet chuck (2), firstly, the collet chuck (2) with the cutter is put into a conical hole or a clamping part of the mounting shaft (1), then the fastening nut (3) is manually screwed into a thread on the mounting shaft (1), when resistance is felt in the process of rotating the fastening nut (3), the cutter is slightly clamped by the collet chuck (2), and at the moment, the inner wall of the collet chuck (2) is kept in a straight line state;
Then, by pulling the sleeve (11) in a direction approaching the collet (2), the worker can make the first telescopic cylinder (30) and the second telescopic cylinder (32) which are not larger than the diameter of the inner wall of the collet (2) extend into the collet (2) under the drive of the T-shaped rod (6), fill the gap in the collet (2), and the second telescopic cylinder (32) which is larger than the diameter of the inner wall of the collet (2) is retained outside the collet (2);
Meanwhile, the outer wall of the connecting plate (10) is mutually abutted against the outer wall of the positioning plate (14), and the stop block (15) limits the rotation direction of the positioning plate (14) so as to fix the positions of the connecting plate (10) and the T-shaped rod (6);
finally, continuously screwing the fastening nut (3), continuously pressing the collet chuck (2) into the conical hole of the mounting shaft (1) by the fastening nut (3) in the process, generating the clamping force of the cutting tool through the contraction of the inner wall of the collet chuck (2), and completing the mounting and fixing of the cutting tool;
When needs dismantle cutting tool, the staff is through continuing pulling sleeve (11), connecting plate (10) extrudees first voussoir (16), dog (15) are fixed in the inside of mounting box (13), dog (15) no longer restrict the direction of rotation of locating plate (14), then, the staff unclamps sleeve (11), can drive first voussoir (16) and dog (15) and reset, T shape pole (6) and filling part (8) also get back to initial position equally, finally, unscrew collet chuck (2) and cutting tool can.
6. A method of using a cutting tool holding apparatus as defined in claim 5, wherein: if the length of the cutter handle inside the collet (2) is equal to the length of the collet (2), the sleeve (11) is not required to be pulled by a worker, the fastening nut (3) is directly screwed continuously, and the collet (2) and the cutting tool are directly screwed out when the cutting tool is required to be disassembled.
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| CN202410253262.2A CN117817387B (en) | 2024-03-06 | 2024-03-06 | Cutting tool clamping device |
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| CN214109592U (en) * | 2020-12-30 | 2021-09-03 | 百达福美智能科技(江苏)有限公司 | Tool collet convenient for adjusting clamping depth |
| CN112792615A (en) * | 2021-01-15 | 2021-05-14 | 成都工业学院 | Flexible seal main shaft center cooling device |
| CN113878152A (en) * | 2021-09-16 | 2022-01-04 | 江苏双阳机械科技有限公司 | Clamping and grabbing device for end milling cutter |
| CN217254767U (en) * | 2022-02-25 | 2022-08-23 | 深圳市新乡弘科技有限公司 | Knife handle assembly for numerical control machine tool |
| CN217044922U (en) * | 2022-03-15 | 2022-07-26 | 山东大柴缸体缸盖股份有限公司 | Tapping automatic compensation knife handle of machining center |
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