CN118023594A - Variable-diameter multi-form ball end mill - Google Patents
Variable-diameter multi-form ball end mill Download PDFInfo
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- CN118023594A CN118023594A CN202410419957.3A CN202410419957A CN118023594A CN 118023594 A CN118023594 A CN 118023594A CN 202410419957 A CN202410419957 A CN 202410419957A CN 118023594 A CN118023594 A CN 118023594A
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- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 238000003801 milling Methods 0.000 claims abstract description 80
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a variable-diameter multi-form ball end milling cutter, which relates to the technical field of machining cutters and comprises a cutter bar, wherein a cutter ejecting mechanism is arranged at the top above the cutter bar; a side cutter mechanism is arranged on the inner side of the middle part above the cutter bar; the inner side of the lower part above the cutter bar is provided with a driving mechanism for providing extrusion force; the side end of the driving mechanism is provided with a locking mechanism which rotates and is self-locking. According to the milling cutter disclosed by the invention, the ball end milling cutter is arranged as two independent milling cutter pieces, a user pushes the two ball end milling cutter pieces to perform relative movement to adjust the distance by increasing the pressure, so that the function of variable diameter is realized, the convenience of the milling cutter in use is improved, and a plurality of freely telescopic gear tooth milling cutter pieces are additionally arranged on the basis of the milling cutter, so that the milling cutter has various working modes, curved surface-shaped cutting can be performed by utilizing the ball end milling cutter pieces, and tooth-shaped cutting can be performed by utilizing the gear tooth milling cutter pieces, so that the functionality of the milling cutter is greatly improved.
Description
Technical Field
The invention relates to the technical field of machining tools, in particular to a variable-diameter multi-form ball end mill.
Background
The ball end milling cutter is a cutter with a cutting edge similar to a ball end and assembled on a milling machine and used for milling various curved surfaces and arc grooves, the ball end milling cutter is also called an R cutter, and raw materials can be engraved under the drive of driving equipment, so that the raw materials can be changed into required shapes after being processed by the ball end milling cutter, and the ball end milling cutter can mill die steel, cast iron, carbon steel, alloy steel, tool steel and general iron materials and belongs to end milling cutters. The ball end mill can normally operate in a high-temperature environment.
In the process of grooving, the sizes of the surface and the inner groove of the die are not fixed, but the existing ball end milling cutter does not have the capacity of changing the diameter according to the requirement, so that when grooving with different sizes of the same die is performed, operators are required to intermittently replace the ball end milling cutter, the operation is complicated, and the production efficiency is reduced;
And a mold is also free from the shape of its internal slot during processing, for example: gear (surface has curved surface and tooth groove simultaneously), and current ball end mill can't change the form according to the demand, consequently, to the slotting of same work piece different styles when processing, need the intermittent type change milling cutter of operating personnel, complex operation also can reduce production efficiency.
Disclosure of Invention
The invention discloses a variable-diameter multi-form ball end milling cutter, and aims to solve the technical problem that the existing ball end milling cutter cannot change the machining shape and the machining scale according to requirements, so that the production efficiency is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a variable diameter polymorphic ball end mill, includes the cutter arbor, the top is provided with the top sword mechanism that is used for cutting curved slot above the cutter arbor;
A side cutter mechanism for cutting out tooth slots is arranged on the inner side of the middle part above the cutter bar;
A driving mechanism for providing extrusion force is arranged on the inner side of the upper and lower parts of the cutter bar;
The side end of the driving mechanism is provided with a locking mechanism capable of rotating and self-locking;
The diameter of the top cutter mechanism is controlled by rotating the driving mechanism, the driving mechanism is reversed to control the extension of the side cutter mechanism, and when the cutter bar operates, the locking mechanism is automatically started to lock the driving mechanism.
The driving mechanism is arranged to control the top cutter mechanism and the side cutter mechanism, so that a user can rotate the driving mechanism forward, and the cutting diameter of the top cutter can be controlled; the user can reverse the driving mechanism to drive the side cutter mechanism to extend outwards; the variable-diameter top cutter mechanism improves the application range of the equipment, and the additionally arranged side cutter mechanism improves the functionality of the equipment, so that the equipment has higher use value, and in the running process of the equipment, the locking mechanism can be utilized to realize self-locking of the driving mechanism, thereby ensuring the running stability of the equipment.
In a preferred scheme, the top sword mechanism is including seting up in the inboard gas storehouse in cutter arbor top, cutter arbor top slip distributes has two bulb milling cutter spare, and two bulb milling cutter spare is mirror symmetry, the bottom of bulb milling cutter spare is fixed with the connecting piece, two the connecting piece again respectively slip distribute in the inside both sides of gas storehouse, first air flue has been seted up along vertical direction to the inboard of cutter arbor, just the top through connection of first air flue in the middle part of gas storehouse, the bottom through connection of first air flue in actuating mechanism's top.
Through being provided with two independent ball end mill structures that exist that are promoted by atmospheric pressure, the user increases the inside pressure of gas storehouse through rotating actuating mechanism to promote two ball end mill structures and carry out relative movement, adjust the interval, realize the function of current ball end mill diameter variation, the user need not to change milling cutter when cutting same work piece, guarantees convenience and the use value of equipment use.
In a preferred scheme, the side cutter mechanism comprises an annular air bin which is arranged on the inner side of the middle part above the cutter bar in the horizontal direction, a plurality of gear tooth milling cutter pieces are uniformly distributed in the annular air bin, the gear tooth milling cutter pieces are slidably mounted in the annular air bin and penetrate through the side end of the cutter bar, a second air channel is arranged on the inner side of the cutter bar in the vertical direction, the top of the second air channel is in through connection with the inner side of the annular air bin, and the bottom of the second air channel is in through connection with the bottom of the driving mechanism.
Through being provided with a plurality of teeth of a cogwheel milling cutter spare that is promoted by atmospheric pressure, the user increases the inside pressure of annular gas storehouse through rotating actuating mechanism to promote a plurality of teeth of a cogwheel milling cutter spare outwards to take place to remove, make this equipment have multiple working form, not only can carry out curved surface smear metal, can also carry out tooth's socket cutting, by a wide margin improved the functionality of equipment.
In a preferred scheme, the actuating mechanism includes vertically set up in the inside square straight flute of cutter arbor, square straight flute's top link up in the bottom of first air flue, square straight flute's bottom link up in the top of second air flue, square straight flute's middle part rotates installs the knob, the side of knob is followed the lateral wall of cutter arbor runs through, the middle part of knob is vertical to run through again and is distributed with the threaded rod, the threaded rod with the middle part threaded connection of knob.
Through being provided with the threaded rod structure by user rotation drive, utilize the reciprocates of threaded rod, can drive bulb milling cutter spare and teeth of a cogwheel milling cutter spare respectively to the perfection when guaranteeing the equipment operation.
In a preferred scheme, the locking mechanism comprises a chute arranged in the cutter bar, the chute is in through connection with the side end of the square straight groove, the connecting part is horizontally distributed at the side end of the knob, a clamping block is slidably distributed in the chute, a spring is fixedly connected between the clamping block and a crack of the chute, and the side end of the clamping block can be in extrusion clamping with the side end of the knob.
Through being provided with the fixture block structure by the traction of spring at the side of knob, when this equipment operation, the fixture block can pull the spring because of centrifugal force's influence to extrusion block is in the side of knob, causes the unable rotation of knob, thereby has guaranteed the stability of structure when equipment operation, makes the operation of equipment more perfect.
From the above, it can be seen that. Compared with the prior art, the ball end mill with the variable diameter and multiple forms has the following improvement and advantages:
The method comprises the following steps: through setting up ball end mill structure into two milling cutter spare that can take place relative movement alone on current ball end mill's basis, the user is through increasing the inside pressure of air-entraining storehouse to promote two ball end mill spare structures and carry out relative movement and adjust the interval, realize the function of variable diameter, when the user is cutting same work piece, need not to change milling cutter, thereby improves the convenience when milling cutter uses.
And two,: through being provided with a plurality of tooth milling cutter spare that is promoted by atmospheric pressure, the user is through increasing the inside pressure of annular gas storehouse to promote a plurality of tooth milling cutter spare outwards to take place to remove and can work along with the rotation of cutter arbor, make this equipment have multiple working form, not only can utilize the bulb milling cutter spare to carry out curved surface form smear metal, can also utilize tooth milling cutter spare to carry out tooth's socket form cutting, thereby the functionality of equipment has been improved by a wide margin.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a variable diameter multi-form ball nose milling cutter according to the present invention.
Fig. 2 is a schematic view of a variable diameter multi-form ball end mill according to the present invention.
Fig. 3 is a schematic view showing the structure of a gear tooth milling cutter member of a variable diameter multi-form ball milling cutter according to the present invention when the gear tooth milling cutter member is extended.
Fig. 4 is an exploded view of a ball end mill member of a variable diameter multi-form ball end mill according to the present invention.
Fig. 5 is a cross-sectional view of the side structure of the upper middle part of the cutter bar of the variable diameter multi-form ball end mill according to the present invention.
Fig. 6 is an enlarged view of the structure a in fig. 5 of a variable diameter multi-form ball nose milling cutter according to the present invention.
Fig. 7 is a cross-sectional view of the top side of a shank of a variable diameter multi-form ball nose milling cutter according to the present invention.
Fig. 8 is a cross-sectional view of the top structure of a shank of a variable diameter multi-form ball nose milling cutter according to the present invention.
Fig. 9 is a cross-sectional view of the upper middle part of the cutter bar of the variable diameter multi-form ball end mill according to the present invention.
Fig. 10 is a diagram showing an example of a machining product of a variable diameter multi-form ball nose milling cutter according to the present invention.
In the figure: 1. a cutter bar; 2. a knife pushing mechanism; 201. a gas bin; 202. a ball nose milling cutter member; 203. a connecting piece; 204. a first airway; 205. alloy blade; 3. A side cutter mechanism; 301. an annular gas bin; 302. a gear tooth milling cutter member; 303. a second airway; 4. a driving mechanism; 401. square straight groove; 402. a knob; 403. a threaded rod; 404. square blocks; 405. a piston block; 406. a pressure release valve; 5. a locking mechanism; 501. a chute; 502. a clamping block; 503. a spring; 6. a planar portion.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The invention discloses a variable-diameter multi-form ball end mill which is mainly applied to a scene of workpiece cutting processing.
Referring to fig. 1 to 9, a variable diameter multi-form ball end mill comprises a cutter bar 1, wherein a top cutter mechanism 2 for cutting curved grooves is arranged on the top above the cutter bar 1;
a side cutter mechanism 3 for cutting out tooth slots is arranged on the inner side of the middle part above the cutter bar 1;
A driving mechanism 4 for providing extrusion force is arranged on the inner side of the upper lower part of the cutter bar 1;
The side end of the driving mechanism 4 is provided with a locking mechanism 5 which is rotationally self-locking;
The diameter of the top cutter mechanism 2 is controlled by rotating the driving mechanism 4, the driving mechanism 4 is reversed to control the extension of the side cutter mechanism 3, and the locking mechanism 5 is self-opened to lock the driving mechanism 4 when the cutter bar 1 runs.
In this embodiment: the user installs the cutter bar 1 on the lathe, fixes the workpiece to be processed above the lathe, starts the lathe at the same time, and the lathe can move according to a set program and drive the cutter bar 1 and the cutter pushing mechanism 2 positioned at the top of the cutter bar 1 to rotate at a high speed, so as to cut the workpiece; when the cut size of the curved groove on the workpiece needs to be changed, a user needs to stop the lathe first and then forward rotate the driving mechanism 4 by hand, so that the diameter of the driving mechanism 4 driving the top cutter mechanism 2 is changed, and the cut size of the workpiece is changed; when the shape of the workpiece to be cut needs to be changed, a user needs to stop the lathe firstly and then reversely rotate the driving mechanism 4 by hand, so that the driving mechanism 4 drives the side cutter mechanism 3 to operate and extend out of the cutter bar 1, and at the moment, the user controls the cutter bar 1 to rotate at a high speed, so that the side cutter mechanism 3 cuts the side end of the workpiece, and the shape of the workpiece to be cut is changed; and under the condition that the cutter bar 1 rotates at a high speed, the locking mechanism 5 is influenced by centrifugal force and can automatically lock and fix the driving mechanism 4, so that the stability of the whole equipment in the operation process is ensured.
In the above scheme, considering that curved slots with different size requirements exist on the same workpiece, the existing ball end mill structure needs to have the diameter-changing capability to adjust the cutting diameter, and the specific operation is as follows.
Referring to fig. 1 to 5 and 7, in a preferred embodiment, the top cutter mechanism 2 includes a gas chamber 201 that is opened at the inner side of the top of the cutter bar 1, two ball end milling cutter pieces 202 are slidably disposed above the top of the cutter bar 1, and the two ball end milling cutter pieces 202 are mirror symmetry, a connecting piece 203 is fixed at the bottom of the ball end milling cutter pieces 202, the two connecting pieces 203 are slidably disposed at two sides of the inner side of the gas chamber 201, a first air passage 204 is opened at the inner side of the cutter bar 1 along the vertical direction, the top of the first air passage 204 is connected to the middle of the gas chamber 201, and the bottom of the first air passage 204 is connected to the top of the driving mechanism 4.
In this embodiment: when the size of the workpiece to be cut needs to be changed, a user needs to stop the lathe first and then forward rotate the driving mechanism 4 by hand, so that the driving mechanism 4 pressurizes the inside of the air chamber 201 through the first air passage 204, the pressure in the air chamber 201 is increased, the increased pressure can push the two connecting pieces 203 to move relatively along the inside of the air chamber 201, so that the ball end milling cutter pieces 202 positioned at the top of the connecting pieces 203 can also synchronously move, the maximum diameters of the two ball end milling cutter pieces 202 are changed, and when the cutter bar 1 drives the two ball end milling cutter pieces 202 to rotate at a high speed, the machinable areas of the two ball end milling cutter pieces 202 are correspondingly changed, so that the size of the curved groove cut on the workpiece is changed.
The supplementary explanation is that: the overlapped part of the tops of the two ball end mill pieces 202 is provided with a plane part 6, and specific reference is made to fig. 2 to 3, 5 and 7; by providing the flat portion 6, it is ensured that the contact surfaces between the tops of the two ball nose milling cutter members 202 and the workpiece are not affected by the shape of the ball nose milling cutter members 202 to form uneven grooves during cutting.
Further, supplementary explanation is: the alloy blade 205 is clamped and mounted at the side end of the ball end milling cutter 202, and the alloy blade 205 and the ball end milling cutter 202 are fixed through nuts, and specific reference is made to fig. 1 to 5 and 7; the alloy insert 205 located at the side end of the ball nose milling cutter member 202 is the body that contacts the workpiece when the ball nose milling cutter member 202 is rotated at a high speed, increasing cutting ability on the one hand and wearing on the other hand.
In the above-mentioned scheme, consider a mould in the course of carrying out processing, its shape of internal slotting is also not fixed, for example: the gear (the surface has both curved surface and tooth groove, refer to fig. 10), but the existing ball end mill cannot change its shape according to the requirement, so in order to improve the shape function of the existing ball end mill, the specific operation is as follows.
Referring to fig. 1 to 9, in a preferred embodiment, the side cutter mechanism 3 includes an annular air chamber 301 that is opened at the inner side of the middle part above the cutter bar 1 along the horizontal direction, a plurality of gear teeth milling cutter members 302 are uniformly distributed in the annular air chamber 301, the gear teeth milling cutter members 302 are slidably mounted in the annular air chamber 301 and penetrate through the side end of the cutter bar 1, a second air passage 303 is opened at the inner side of the cutter bar 1 along the vertical direction, the top of the second air passage 303 is connected in the annular air chamber 301 in a penetrating manner, and the bottom of the second air passage 303 is connected in a penetrating manner to the bottom of the driving mechanism 4.
In this embodiment: when the shape of the workpiece to be cut needs to be changed, the user needs to stop the lathe first and then reversely rotate the driving mechanism 4 by hand, so that the driving mechanism 4 pressurizes the inside of the annular air chamber 301 through the second air passage 303, the pressure in the annular air chamber 301 is increased, the increased pressure can push all the gear tooth milling cutter pieces 302 to relatively move along the inside of the annular air chamber 301 and extend out of the inside of the cutter rod 1, at the moment, the user controls the cutter rod 1 to rotate at a high speed, and the gear tooth milling cutter pieces 302 positioned at the side end of the cutter rod 1 and the side end of the workpiece are enabled to contact and cut, so that the shape of the workpiece to be cut is changed.
In the above-described configuration, it is considered that the top blade mechanism 2 and the side blade mechanism 3 can be individually driven for power supply, and the specific operation is as follows.
Referring to fig. 5 to 6, in a preferred embodiment, the driving mechanism 4 includes a square straight groove 401 vertically opened in the cutter bar 1, the top of the square straight groove 401 is connected with the bottom of the first air channel 204 in a penetrating manner, the bottom of the square straight groove 401 is connected with the top of the second air channel 303 in a penetrating manner, a knob 402 is rotatably installed in the middle of the square straight groove 401, the side end of the knob 402 penetrates through the side wall of the cutter bar 1, a threaded rod 403 is vertically and fixedly arranged in the middle of the knob 402, and the threaded rod 403 is in threaded connection with the middle of the knob 402.
In this embodiment: when the user rotates the knob 402 forward, the rotated knob 402 drives the threaded rod 403 to move vertically upwards along the square straight groove 401 through the thread groove, so that air in the first air channel 204 is pushed, the air in the air chamber 201 is pressurized, and the ball end mill 202 is pushed; when the user reversely rotates the knob 402, the rotated knob 402 drives the threaded rod 403 to move vertically downwards along the square straight groove 401, so as to push the air in the second air passage 303, pressurize the inside of the annular air chamber 301, and push the gear tooth milling cutter 302.
The supplementary explanation is that: by default, we take the top view of the knob 402 as the main, and the knob 402 rotates counterclockwise to rotate forward; knob 402 rotates clockwise to reverse; with particular reference to fig. 6.
Further, supplementary explanation is: square blocks 404 are fixed at the upper end and the lower end of the threaded rod 403, and the square blocks 404 are in sliding fit with the inner walls of the square straight grooves 401, and particularly refer to fig. 5 and 6; when the user rotates the knob 402, the rotated knob 402 drives the threaded rod 403 through the thread groove, and the threaded rod 403 is limited by the square block 404, so that rotation cannot occur, and only up-and-down movement is possible, and the operation reasonability of the driving mechanism 4 is ensured.
In the above-described scheme, considering that the knob 402 is rotated by the foreign object to affect the accuracy and operation of the entire apparatus when the cutter bar 1 is rotated at a high speed, it is necessary to prevent the knob 402 from rotating, as follows.
Referring to fig. 5 to 6, in a preferred embodiment, the locking mechanism 5 includes a chute 501 that is opened inside the cutter bar 1, the chute 501 is connected with the side end of the square straight groove 401 in a penetrating manner, the connection part is horizontally distributed at the side end of the knob 402, a clamping block 502 is slidingly distributed inside the chute 501, a spring 503 is fixedly connected between the clamping slot of the clamping block 502 and the chute 501, and the side end of the clamping block 502 can be in extrusion clamping with the side end of the knob 402.
In this embodiment: when the cutter bar 1 rotates at a high speed, the clamping block 502 positioned in the chute 501 is influenced by centrifugal force, overcomes the tensile force of the spring 503, slides outwards, and can be in extrusion contact clamping with the side end of the knob 402, so that the knob 402 cannot rotate; when the cutter bar 1 stops rotating, the clamping block 502 which is influenced by the centrifugal force is pulled to reset by the contracted spring 503, and the contact relation with the knob 402 is released, so that the knob 402 can be rotated normally by a user.
In the above scheme, considering that the threaded rod 403 moves up and down, the operations of the top cutter mechanism 2 and the side cutter mechanism 3 are driven correspondingly, so as to ensure that the operations of the two mechanisms are not contradictory to each other, the specific operations are as follows.
Referring to fig. 5 and 6, in a preferred embodiment, a piston block 405 is slidably disposed in the connection between the top of the square straight groove 401 and the bottom of the first air duct 204, and in the connection between the bottom of the square straight groove 401 and the top of the second air duct 303, and a pressure release valve 406 is horizontally disposed on the outside of the connection between the top of the square straight groove 401 and the bottom of the first air duct 204, and on the outside of the connection between the bottom of the square straight groove 401 and the top of the second air duct 303.
In this embodiment: when the threaded rod 403 moves upward, the top of the threaded rod 403 presses the upper piston block 405, so that the upper piston block 405 is pushed to pressurize the interior of the first air channel 204, when the user needs to change the cutting shape of the workpiece, the user reverses the knob 402, controls the threaded rod 403 to move downward, and at the moment, the upper piston block 405 loses the pressing limit and moves downward synchronously with the threaded rod 403, and causes the two ball end mill pieces 202 to perform centering reset movement until the top of the threaded rod 403 moves to the side end of the upper relief valve 406 (the two ball end mill pieces 202 are also completely reset in centering), the relief valve 406 vents to the upper piston block 405 and the top of the threaded rod 403, and at the moment, the threaded rod can fall off from contact relation with the upper piston block 405, and continues to move downward and the lower piston block 405 to contact, and pushes the lower piston block 405, so that the lower piston block 405 pressurizes the interior of the second air channel 303 (during the upward reset movement of the threaded rod 403, the same principle).
Working principle: when the tool bar 1 is used, a user installs the tool bar 1 on a lathe, fixes a workpiece to be processed above the lathe, starts the lathe at the same time, moves the tool bar 1 and the tool pushing mechanism 2 positioned at the top of the tool bar 1 according to a set program and drives the tool pushing mechanism to rotate at a high speed, so that the workpiece is cut, and when the cut size of the workpiece needs to be changed, the user needs to stop the lathe first and then rotate the knob 402 forward by hand, so that the threaded rod 403 moves upwards; the first air channel 204 pressurizes the inside of the air bin 201, so that the pressure in the air bin 201 is increased, the increased pressure can push the two connecting pieces 203 to move relatively along the inside of the air bin 201, so that the ball end milling cutter pieces 202 positioned at the top of the connecting pieces 203 can also move synchronously, the maximum diameters of the two ball end milling cutter pieces 202 are changed, and when the cutter bar 1 drives the two ball end milling cutter pieces 202 to rotate at a high speed, the machinable areas of the two ball end milling cutter pieces 202 can also be correspondingly changed, so that the cut size of a curved groove on a workpiece is changed; when the shape of the workpiece to be cut needs to be changed, a user needs to stop the lathe first, then reversely rotate the knob 402 by hand, so that the threaded rod 403 moves downwards, the pressure in the annular air chamber 301 is increased by the second air passage 303, the increased pressure can push all the gear tooth milling cutter pieces 302 to relatively move along the inside of the annular air chamber 301 and extend out of the inside of the cutter rod 1, and at the moment, the user controls the cutter rod 1 to rotate at a high speed, so that the gear tooth milling cutter pieces 302 positioned at the side end of the cutter rod 1 and the side end of the workpiece are contacted and cut, and the shape of the workpiece to be cut is changed; when the cutter bar 1 rotates at a high speed, the clamping block 502 positioned in the chute 501 is influenced by centrifugal force, overcomes the tensile force of the spring 503, slides outwards and can be in extrusion contact clamping with the side end of the knob 402, so that the knob 402 cannot rotate; when the cutter bar 1 stops rotating, the clamping block 502 which is influenced by the centrifugal force is pulled to reset by the contracted spring 503, and the contact relation with the knob 402 is released, so that the knob 402 can be rotated normally by a user.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a variable diameter polymorphic ball end mill, includes cutter arbor (1), its characterized in that, top above cutter arbor (1) is provided with top sword mechanism (2) that are used for cutting curved slot;
A side cutter mechanism (3) for cutting out tooth slots is arranged on the inner side of the middle part above the cutter bar (1);
a driving mechanism (4) for providing extrusion force is arranged on the inner side of the upper and lower parts of the cutter bar (1);
A locking mechanism (5) capable of rotating and self-locking is arranged at the side end of the driving mechanism (4);
The diameter of the top cutter mechanism (2) is controlled by rotating the driving mechanism (4), the driving mechanism (4) is reversed to control the extension of the side cutter mechanism (3), and when the cutter bar (1) operates, the locking mechanism (5) is self-opened to lock the driving mechanism (4);
The utility model provides a top sword mechanism (2) including set up in inboard gas storehouse (201) in cutter arbor (1) top, cutter arbor (1) top slip distribution have two bulb milling cutter spare (202), and two bulb milling cutter spare (202) are mirror symmetry, the bottom of bulb milling cutter spare (202) is fixed with connecting piece (203), two connecting piece (203) again slip distribution in the inside both sides of gas storehouse (201), first air flue (204) have been seted up along vertical direction to the inboard of cutter arbor (1), just the top through connection of first air flue (204) in the middle part of gas storehouse (201), the bottom through connection of first air flue (204) in the top of actuating mechanism (4).
2. The variable-diameter multi-form ball end mill according to claim 1, wherein the side cutter mechanism (3) comprises an annular air bin (301) which is horizontally arranged on the inner side of the middle part above the cutter bar (1), a plurality of gear tooth milling cutter pieces (302) are uniformly distributed in the annular air bin (301), the gear tooth milling cutter pieces (302) are slidably mounted in the annular air bin (301) and penetrate through the side end of the cutter bar (1), a second air channel (303) is formed in the inner side of the cutter bar (1) along the vertical direction, the top of the second air channel (303) is in through connection with the inner side of the annular air bin (301), and the bottom of the second air channel (303) is in through connection with the bottom of the driving mechanism (4).
3. The variable-diameter multi-form ball end mill according to claim 2, wherein the driving mechanism (4) comprises a square straight groove (401) vertically arranged in the cutter bar (1), the top of the square straight groove (401) is connected with the bottom of the first air passage (204) in a penetrating manner, the bottom of the square straight groove (401) is connected with the top of the second air passage (303) in a penetrating manner, a knob (402) is rotatably arranged in the middle of the square straight groove (401), the side end of the knob (402) penetrates through the side wall of the cutter bar (1), a threaded rod (403) is vertically arranged in the middle of the knob (402) in a penetrating manner, and the threaded rod (403) is in threaded connection with the middle of the knob (402).
4. A variable diameter polymorphic ball end mill according to claim 3, wherein, locking mechanism (5) including open in chute (501) inside cutter arbor (1), chute (501) with square straight flute (401) side link up and connect the department level distribute in the side of knob (402), the inside slip of chute (501) distributes has fixture block (502), fixture block (502) with connect again between the crack of chute (501) and be fixed with spring (503), the side of fixture block (502) can take place extrusion block with the side of knob (402).
5. A variable diameter multi-form ball end mill according to claim 4, characterized in that the top of two ball end mill pieces (202) is provided with a planar portion (6) where they overlap.
6. The variable diameter multi-form ball end mill according to claim 5, wherein the side end of the ball end mill member (202) is snap-fitted with an alloy blade (205), the alloy blade (205) and the ball end mill member (202) being secured by a nut.
7. The variable diameter multi-form ball end mill according to claim 6, wherein square blocks (404) are fixed at the upper and lower ends of the threaded rod (403), and the square blocks (404) are slidably attached to the inner walls of the square straight grooves (401).
8. The variable diameter multi-form ball nose milling cutter according to claim 7, wherein a piston block (405) is slidably provided in each of the interior of the junction of the top of the square straight groove (401) and the bottom of the first air passage (204), and the interior of the junction of the bottom of the square straight groove (401) and the top of the second air passage (303).
9. The ball end mill of claim 8, wherein a relief valve (406) is horizontally disposed at the outer side of the junction between the top of the square straight groove (401) and the bottom of the first air passage (204), and at the outer side of the junction between the bottom of the square straight groove (401) and the top of the second air passage (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410419957.3A CN118023594A (en) | 2024-04-09 | 2024-04-09 | Variable-diameter multi-form ball end mill |
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| CN202410419957.3A CN118023594A (en) | 2024-04-09 | 2024-04-09 | Variable-diameter multi-form ball end mill |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA968139A (en) * | 1971-03-22 | 1975-05-27 | Christian Flayac | Milling cutter with adjustable blade inserts |
| US20020110428A1 (en) * | 2001-02-13 | 2002-08-15 | Valenite Inc. | Cutting tool adjustment device |
| US6908267B1 (en) * | 2003-04-04 | 2005-06-21 | Hiep N. Tran | Variable radii cutter |
| CN109500442A (en) * | 2018-12-10 | 2019-03-22 | 陕西航空电气有限责任公司 | A kind of reducing wire rod quality knife handle tool |
| CN213591868U (en) * | 2020-10-16 | 2021-07-02 | 成都航威精密刃具有限公司 | Reducing ball-end milling cutter |
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2024
- 2024-04-09 CN CN202410419957.3A patent/CN118023594A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA968139A (en) * | 1971-03-22 | 1975-05-27 | Christian Flayac | Milling cutter with adjustable blade inserts |
| US20020110428A1 (en) * | 2001-02-13 | 2002-08-15 | Valenite Inc. | Cutting tool adjustment device |
| US6908267B1 (en) * | 2003-04-04 | 2005-06-21 | Hiep N. Tran | Variable radii cutter |
| CN109500442A (en) * | 2018-12-10 | 2019-03-22 | 陕西航空电气有限责任公司 | A kind of reducing wire rod quality knife handle tool |
| CN213591868U (en) * | 2020-10-16 | 2021-07-02 | 成都航威精密刃具有限公司 | Reducing ball-end milling cutter |
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