CN114850551A - Special cutter with composite cutting edge - Google Patents
Special cutter with composite cutting edge Download PDFInfo
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- CN114850551A CN114850551A CN202210449499.9A CN202210449499A CN114850551A CN 114850551 A CN114850551 A CN 114850551A CN 202210449499 A CN202210449499 A CN 202210449499A CN 114850551 A CN114850551 A CN 114850551A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 178
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 238000003801 milling Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 41
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 18
- 239000002184 metal Substances 0.000 abstract description 10
- 239000007921 spray Substances 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract 1
- 230000000670 limiting effect Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 239000002826 coolant Substances 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 230000008719 thickening Effects 0.000 description 6
- 230000002411 adverse Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000030279 gene silencing Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/28—Features relating to lubricating or cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a special cutter with a composite cutting edge, which comprises a cutter body, wherein a first cutter head and a second cutter head are respectively arranged at two ends of the cutter body in the length direction, and a protective sleeve is slidably sleeved outside the cutter body through a sliding assembly; a first air cooling flow channel and a second air cooling flow channel for cooling the first tool bit and the second tool bit are respectively arranged at two ends of the interior of the tool body; the invention can select to replace the first tool bit or the second tool bit to process the workpiece with different precisions according to the requirement of the machining precision of the workpiece, thereby realizing that a single tool can meet the machining requirement of different precisions of the workpiece, cooling the first tool bit and the second tool bit by generating airflow at high speed per se to avoid the fracture and damage of the tool caused by spray cooling, blowing off metal chips after the airflow is blown off to avoid the influence on the machining precision due to the attachment on the tool, and having outstanding substantive characteristics and remarkable progress compared with the traditional tool.
Description
Technical Field
The invention relates to the technical field of cutters, in particular to a special cutter with a composite cutting edge.
Background
The present invention relates to a tool, which is generally a tool used for cutting machining in machine manufacturing, and is also called a cutting tool, and in the field of machining, a common tool used in the prior art has a relatively simple structure, and can only meet the machining requirement of a single precision during machining, so that a plurality of tools are often required to be prepared for replacement during machining when a machining worker mills a workpiece with different precisions, thereby causing inconvenience in use for the machining worker.
Disclosure of Invention
The invention aims to provide a special cutter with a composite cutting edge, which is used for solving the problems that the existing cutter in the background technology can only meet the machining requirement of single precision, and various cutters are required to be replaced when machining with different precisions is carried out, so that the use is inconvenient; and the cutter adopts the spray heat dissipation, has the problem of extremely adverse effect to the life and the result of use of cutter.
The invention is realized by the following technical scheme:
a special cutter with a composite cutting edge comprises a cutter body, wherein a first cutter head and a second cutter head are respectively arranged at two ends of the cutter body in the length direction, and a protective sleeve is slidably sleeved outside the cutter body through a sliding assembly;
a first air-cooled runner and a second air-cooled runner for cooling the first tool bit and the second tool bit are respectively arranged at two ends of the interior of the tool body, the outer surfaces of the two ends of the cutter body are respectively provided with a first air inlet flow passage communicated with the first air cooling flow passage and a second air inlet flow passage communicated with the second air cooling flow passage, the openings of the first air inlet channel and the second air inlet channel are both provided with a flow guide part, the windward surface at one side of the flow guide part is provided with an inclined surface transition part inclining downwards, and the inclined plane transition part is provided with an air guide opening, the opening end of the air guide opening expands outwards to be trumpet-shaped, the bottom end of the air guide opening is communicated with the first air inlet flow channel or the second air inlet flow channel respectively, and a plurality of first air exhaust holes and second air exhaust holes which are in one-to-one correspondence with the first air cooling flow channels and the second air cooling flow channels and are communicated with the first air cooling flow channels and the second air cooling flow channels are formed in the outer surfaces of the first cutter head and the second cutter head respectively.
It should be noted that, in the long-term use of the tool for machining, the applicant finds that many tools can only meet the machining requirement of single precision, and in the machining engineering, due to the complexity of workpiece machining, it is often necessary to perform cutting machining of different precisions on a workpiece, therefore, in the actual machining process, a plurality of tools are often required to be prepared for replacement, so that a machining worker needs to prepare different tools additionally each time the machining worker machines, which causes machining inconvenience and affects the machining efficiency of the machining worker, for this reason, the applicant specifies that a first tool bit and a second tool bit are respectively arranged at two ends of a tool body, and a protective sleeve is sleeved outside the tool body through a sliding assembly, so when the machining worker uses the tool to machine the workpiece, the first tool bit or the second tool bit can be selected to be replaced to perform machining of different precisions on the workpiece according to the requirement of the machining precision of the workpiece, the cutter meets the requirement of processing workpieces with different precisions, and the situation that in the processing process, a plurality of cutters are additionally prepared by processing personnel to be replaced and used is avoided, so that the processing personnel can more conveniently process the workpieces.
It should be noted that, at the same time, the applicant finds that, when the existing cutter is cooled, most of the existing cutters are cooled by spraying cooling medium (such as cooling liquid) on the outer surface of the cutter, and this way of cooling the cutter by spraying cooling medium is very easy to cause the surface of the cutter to break due to uneven cooling and heating, thereby shortening the service life of the cutter, and the spraying cooling medium (such as cooling liquid) is used to cool the cutter, which has great limitation, especially when the weather is cold, the cooling medium is easy to freeze, thereby affecting the fluidity of the cooling medium, further affecting the heat dissipation of the cutter, and finally causing a very adverse effect on the use effect of the cutter; based on the above, the applicant sets a first air-cooling channel and a second air-cooling channel at two ends of the interior of the cutter body, and sets a first air inlet channel communicated with the first air-cooling channel and a second air inlet channel communicated with the second air-cooling channel at the outer surfaces of two ends of the cutter body, respectively, and sets a diversion member at the opening position of the first air inlet channel and the second air inlet channel, and the windward side of one side of the diversion member is set with an air guide opening, and the opening end of the air guide opening expands outwards to be horn-shaped, so that in the machining process of the cutter, the cutter can generate air flow by utilizing the high-speed rotation of the cutter, and under the guiding action of the diversion member and the air guide opening, the air flow is guided to enter the first air-cooling channel and the second air-cooling channel through the first air inlet channel or the second air inlet channel, and finally discharged through the first air outlet or the second air outlet, thereby realizing that the cutter can cool the first cutter head or the second cutter head through the air flow generated by exhausting through the air flow, thereby avoid adopting the cooling of spraying, lead to the cutter to appear cold and hot uneven and breaking occur and damage, and can effectively avoid coolant to appear freezing and influence the cutter heat dissipation when weather is cold, and finally the condition that causes extremely adverse effect to the result of use of cutter appears, thereby make cutter life longer, and the result of use is better, the air current is when exhausting through first hole or the second hole of airing exhaust simultaneously, also can blow off adnexed metal fillings on first tool bit or the second tool bit, avoid it to adhere on first tool bit or the second tool bit, and influence the processing effect of cutter.
Furthermore, a plurality of guide plates are circumferentially arranged in the direction of the delay axis of the inner wall of the air guide opening, and one layer of silencing sponge cushion is bonded on the two side plate surfaces of each guide plate.
Furthermore, the first cutter head is a fine-tooth milling cutter, a plurality of spiral first cutting edges which are arranged along the axial direction of the first cutter head are arranged on the periphery of the outer portion of the first cutter head, a first chip discharge groove is formed between any two adjacent first cutting edges, and a first conical cutting guide edge is arranged on the cutting surface of any one first cutting edge and close to the end portion of the cutting surface; because the first tool bit is a fine-tooth milling cutter, the first tool bit can realize that the cutter carries out fine machining on a workpiece, when the first tool bit cuts a workpiece through the first cutting edge, a large torque stress is often generated at the contact position of the edge end part of the first cutting edge and the workpiece, therefore, the end part of the cutting edge of the first cutting edge is easy to generate the rolling edge breakage, and the scheme is characterized in that the end part of the first cutting edge is provided with a conical first cutting guide edge, therefore, the end part of the first cutting edge is reinforced and protected by the first cutting guide edge, the edge rolling breakage is avoided when the first cutting edge is contacted with a workpiece, and simultaneously, when the first cutting edge carries out cutting processing on the workpiece, the first cutting edge is guided and positioned, so that the phenomenon of tool running dislocation during cutting of the first cutting edge is avoided, and the machining precision of the first tool bit is improved.
Furthermore, the second cutter head is a coarse-tooth milling cutter, a plurality of spiral second cutting edges which are arranged along the axial direction of the second cutter head are arranged on the periphery of the outer part of the second cutter head, a second chip groove is arranged between any two adjacent second cutting edges, and a conical second cutting guide edge is arranged at the position, close to the end part, of the cutting surface of any one second cutting edge; because the second tool bit is a coarse-tooth milling cutter, the rough machining of the workpiece by the tool can be realized by the second tool bit, when the second tool bit cuts a workpiece through the second cutting edge, a large torque stress is often generated at the contact position of the edge end of the second cutting edge and the workpiece, therefore, the end part of the cutting edge of the second cutting edge is easy to generate the rolling edge breakage, and the scheme is characterized in that the end part of the second cutting edge is provided with a conical second cutting guide edge, therefore, the end part of the second cutting edge is reinforced and protected by the second cutting guide edge, the rolling edge is prevented from being broken when the second cutting guide edge is contacted with a workpiece, and simultaneously, when the second cutting edge carries out cutting processing on the workpiece, play a guide positioning's effect to the second cutting edge to avoid the second cutting edge to appear the phenomenon of running sword dislocation when cutting processing, thereby promote the machining precision of second tool bit greatly.
Preferably, the first exhaust holes are distributed in the first chip grooves in a one-to-one correspondence manner, and the second exhaust holes are distributed in the second chip grooves in a one-to-one correspondence manner; first exhaust hole sets up in first chip groove, when being convenient for the air current to discharge through it, give off the heat that first sword man-hour produced, with this realization cool off the first sword, simultaneously when the air current discharges, also can blow away the metal fillings in the first chip groove, avoid its jam in first chip groove, in the same way, the second hole setting of airing exhaust is in the second chip groove, also be favorable to cooling the second sword when gas discharge, and blow away the metal fillings in the second chip groove, avoid it to block up the second chip groove, with this result of use that improves the cutter greatly, and make the cutter practicality better.
Further, the first cutting guide edge and the second cutting guide edge are made of cemented carbide, and the cemented carbide is favorable for improving the strength and the wear resistance of the first cutting guide edge and the second cutting guide edge, so that the first cutting guide edge and the second cutting guide edge are prevented from being broken and damaged in the using process, and the first cutting guide edge and the second cutting guide edge can be better protected and guided by the first cutting guide edge and the second cutting guide edge respectively.
Further, the sliding component comprises a sliding groove arranged on the cutter body along the axial direction of the cutter body, a sliding block arranged in the sliding groove and in sliding fit with the sliding groove, the top of the sliding groove is connected with the inner wall of the protective sleeve, limiting screw holes arranged at two ends of the bottom surface of the sliding groove, and a limiting screw rod arranged on the outer surface of the cutter body, one end of the length direction of the sliding groove sequentially penetrates through the cutter body and the sliding block and is matched with the limiting screw holes, particularly, when a processing worker pushes the protective sleeve to slide, the protective sleeve can drive the sliding block to slide in the sliding groove, so that the protective sleeve can slide on the outer surface of the cutter body through the matching of the sliding block and the sliding groove, and when the protective sleeve slides to a proper position (namely after shielding the first cutter head or the second cutter head), a user can insert the limiting screw rod into the limiting screw holes so as to be matched with the limiting screw holes, the realization is spacing to the antiskid cover.
Further, the axial direction both ends of lag all are equipped with thickening clamping handle portion, and through setting up thickening clamping handle portion at the both ends of lag, be convenient for increase lag and processing equipment press from both sides intensity and the rigidity of dress position department to do benefit to the processing personnel and press from both sides the cutter fastening on processing equipment through thickening clamping handle portion.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) in the invention, the first tool bit, the second tool bit and the protective sleeve are skillfully arranged, the first tool bit and the second tool bit are respectively arranged at two ends of the tool body, and the protective sleeve is sleeved on the outer surface of the tool body in a sliding way through the sliding component, so that when a user uses the tool to process a workpiece, the first tool bit or the second tool bit can be selectively replaced to process the workpiece with different precision according to the requirement of the processing precision of the workpiece, thereby realizing that a single tool can meet the processing requirement of different precision on the workpiece, avoiding that a plurality of tools need to be additionally prepared for replacement when the processing personnel processes the workpiece, thereby leading the processing personnel to be more convenient for processing, and when the processing personnel replaces the first tool bit or the second tool bit, the protective sleeve needs to be pushed to slide up and down on the outer surface of the tool body, so as to realize that when one tool bit works, the lag can shelter from the protection to another tool bit to improve the cutter practicality greatly.
(2) In the invention, the first cutting guide edge and the second cutting guide edge are skillfully arranged at the end parts of the first cutting edge and the second cutting edge, so that the end parts of the first cutting edge or the second cutting edge can be reinforced and protected by the first cutting guide edge and the second cutting edge, and the first cutting edge or the second cutting edge is prevented from generating edge rolling breakage due to the generation of large torque stress at the end parts when the first cutting edge or the second cutting edge is contacted with a workpiece, thereby greatly improving the strength of the first cutting edge and the second cutting edge, ensuring that the first cutting edge and the second cutting edge have better durability, simultaneously, the first cutting guide edge and the second cutting guide edge can also play a role of guiding and positioning the first cutting edge or the second cutting edge when the first cutting edge or the second cutting edge performs cutting on the workpiece, so as to avoid the phenomenon of tool running dislocation during the cutting process, thereby greatly improving the processing precision of the cutter.
(3) In the invention, a first air cooling flow passage, a second air cooling flow passage, a first air inlet flow passage, a second air inlet flow passage, a first exhaust hole and a second exhaust hole are skillfully arranged, and a flow guide piece, a wind guide port and a flow guide plate are also arranged at the same time, and silencing sponge cushions are bonded on two sides of the flow guide plate, so that in the cutter processing process, the cutter can generate airflow by utilizing the high-speed rotation of the cutter, and the airflow is guided into the first air cooling flow passage and the second air cooling flow passage respectively through the first air inlet flow passage or the second air inlet flow passage and finally exhausted through the first exhaust hole or the second exhaust hole under the guide action of the flow guide piece and the wind guide port, thereby realizing that the cutter cools and cools the first cutter head or the second cutter head through the airflow generated by the cutter per se, avoiding the adoption of spraying and cooling to cause the cutter to break and damage due to uneven cooling and effectively avoiding the influence on the heat dissipation of the cutter due to the freezing of a cooling medium in cold weather, and finally, the condition that the using effect of the cutter is extremely adversely affected occurs, so that the service life of the cutter is longer, the using effect is better, meanwhile, when the airflow is discharged through the first air exhaust hole or the second air exhaust hole, the metal scraps attached to the first tool bit or the second tool bit can be blown away, the phenomenon that the metal scraps are adhered to the first tool bit or the second tool bit to affect the processing effect of the cutter is avoided, the guide plate can disperse and guide the airflow when the high-speed airflow enters the air guide opening so as to destroy the self-excitation of a shock wave surface generated when the airflow passes through the air guide opening, and further avoid airflow squeaking noise when the airflow passes through the air guide opening, and the sound waves generated when the airflow passes through the air guide opening can be further absorbed and eliminated by adhering a layer of silencing sponge pad on the two side plate surfaces of the guide plate, so as to further inhibit the generation of the airflow noise.
In conclusion, the invention has the advantages that the invention can process workpieces with different precision, avoids the need of additionally preparing various cutters for replacement, is more convenient to use, can strengthen and protect the end parts of the first cutting edge or the second cutting edge, avoids the breakage during processing, ensures better durability of the cutters, can guide the first cutting edge and the second cutting edge during cutting processing of the cutters, avoids cutter running, improves the processing precision, can cool the first cutter head and the second cutter head by generating airflow at high speed per se, avoids the cutter breakage and damage caused by spray cooling, can blow off metal chips after the airflow is blown off, avoids the influence on the processing precision caused by the attachment on the cutters, simultaneously does not need to fill cooling medium for cooling constantly by the processing personnel, reduces the processing difficulty of the processing personnel and the like, thereby compared with the traditional cutters, has prominent substantive features and remarkable progress.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view (a first tool bit in use) of the present invention;
FIG. 2 is a schematic structural view (a second tool bit in use) of the present invention;
FIG. 3 is a schematic view of a partial perspective structure of a first tool bit according to the present invention;
FIG. 4 is a partial perspective view of a second cutting head according to the present invention;
FIG. 5 is a schematic view of the internal cross-section of the present invention;
FIG. 6 is an enlarged view of the part A of the present invention;
FIG. 7 is a schematic cross-sectional view of a tool body of the present invention (with the sheath removed);
FIG. 8 is a schematic sectional view of the invention in the direction A;
FIG. 9 is a schematic perspective view of a tool body according to the present invention (without a protective sleeve);
FIG. 10 is a schematic view of the present invention at a position B with a partially enlarged structure.
In the drawings, the names of the parts corresponding to the reference numerals are as follows:
1. a tool body; 10. a first air-cooled flow passage; 100. a first exhaust hole; 11. a second air-cooled runner; 110. a second air outlet; 12. a first air intake channel; 13. a second air inlet channel; 14. a flow guide member; 140. a wind guide opening; 141. a baffle; 2. a first cutter head; 20. a first cutting edge; 200. a first cutting guide edge; 21. a first chip discharge groove; 3. a second cutter head; 30. a second cutting edge; 300. a second cutting guide edge; 31. a second chip groove; 4. a protective sleeve; 40. thickening the handle part; 50. a chute; 51. a slider; 52. a limiting screw hole; 53. and a limiting screw rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
First, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 1 to 10, the present embodiment provides a special tool with a composite cutting edge, which includes a tool body 1, a first tool bit 2 and a second tool bit 3 are respectively disposed at two ends of the tool body 1 in a length direction, and a protective sleeve 4 is slidably sleeved outside the tool body 1 through a sliding assembly; in the scheme, the arrangement of the protective sleeve 4 is mainly considered that when a processing worker uses the first tool bit 2 or the second tool bit 3 to process, the protective sleeve 4 can be slid to protect the tool bit which is not in a working state, namely when the processing worker selects the first tool bit 2 to process in specific implementation, the processing worker can clamp the tool body 1 on processing equipment through the protective sleeve 4 and enable the first tool bit 2 to be just opposite to a workpiece; when a processing person needs to replace the second tool bit 3 to process a workpiece, the user can push the protective sleeve 4 to slide downwards on the tool body 1 through the sliding assembly, so that the protective sleeve 4 shields the first tool bit 2 and exposes the second tool bit 3, and then the processing person can turn the tool body 1 to be installed on processing equipment and downwards just face the workpiece with the second tool bit 3.
Wherein, the two ends of the interior of the cutter body 1 are respectively provided with a first air-cooling flow channel 10 and a second air-cooling flow channel 11 for cooling the first cutter head 2 and the second cutter head 3, the outer surfaces of the two ends of the cutter body 1 are respectively provided with a first air inlet flow channel 12 communicated with the first air-cooling flow channel 10 and a second air inlet flow channel 13 communicated with the second air-cooling flow channel 11, the opening positions of the first air inlet flow channel 12 and the second air inlet flow channel 13 are both provided with a flow guide member 14, one side windward surface of the flow guide member 14 is provided with an inclined plane transition part inclining downwards, it is to be noted that the inclined plane transition part is provided with an air guide opening 140, the opening end of the air guide opening 140 expands outwards to be horn-shaped, it is to be noted that one side windward surface of the flow guide member 14 is provided with an inclined plane transition part inclining downwards, which is helpful to reduce the air flow resistance generated when the cutter body 1 rotates, and enables the air flow to better guide the air flow to enter the air guide opening 140 when the air flow passes through the flow guide member 14, the opening end of the air guide opening 140 is flared outwards, so that the flow of air flow entering the air guide opening 140 is increased when the cutter body 1 rotates at a high speed, the bottom end of the air guide opening 140 is respectively communicated with the first air inlet runner 12 or the second air inlet runner 13, and the outer surfaces of the first cutter head 2 and the second cutter head 3 are respectively provided with a plurality of first air exhaust holes 100 and second air exhaust holes 110 which are in one-to-one correspondence with and communicated with the first air cooling runner 10 and the second air cooling runner 11; therefore, in the process of machining the cutter, the cutter can generate air flow by utilizing self high-speed rotation, and under the guiding action of the flow guide piece 14 and the air guide port 140, the air flow is guided to enter the first air cooling flow channel 10 and the second air cooling flow channel 11 through the first air inlet flow channel 12 or the second air inlet flow channel 13 respectively and is finally discharged through the first air exhaust hole 100 or the second air exhaust hole 110, so that the cutter can cool the first cutter head 2 or the second cutter head 3 through the air flow generated by the cutter per se, the phenomenon that the cutter is broken and damaged due to uneven cooling and heating is avoided due to the adoption of spray cooling is avoided, the phenomenon that the heat dissipation of the cutter is influenced due to the fact that a cooling medium is frozen in cold weather can be effectively avoided, and the phenomenon that the use effect of the cutter is extremely adversely influenced is finally avoided, so that the service life of the cutter is longer, and the use effect of the cutter is better.
Specifically, referring to fig. 8, 9 and 10, a plurality of air deflectors 141 are circumferentially arranged in the inner wall delay axis direction of the air guiding opening 140, and a layer of sound absorbing sponge cushion is adhered to two side plate surfaces of any one of the air deflectors 141; the guide plate 141 can disperse and guide the airflow when the high-speed airflow enters the air guide opening 140 so as to destroy the self-excitation of a shock wave surface generated when the airflow passes through the air guide opening 140, thereby avoiding airflow squeaking noise generated when the airflow passes through the air guide opening 140, and the silencing sponge pads adhered to the two side plate surfaces of the guide plate 141 can further absorb and eliminate sound waves generated when the airflow passes through the air guide opening 140, thereby further inhibiting the generation of airflow noise.
Specifically, referring to fig. 1, 2, 3, 5, 7 and 9, the first tool bit 2 is a fine-teeth milling cutter, a plurality of spiral first cutting edges 20 are arranged around the outer portion of the first tool bit 2 along the axial direction of the first tool bit 2, a first flute 21 is arranged between any two adjacent first cutting edges 20, and a first tapered cutting guide edge 200 is arranged on the cutting surface of any one first cutting edge 20 and near the end thereof; because the first tool bit 2 is a fine-tooth milling cutter, the fine processing of the workpiece by the tool can be realized by the first tool bit 2, and when the first tool bit 2 performs the cutting processing of the workpiece by the first cutting edge 20, the contact part of the edge end part of the first cutting edge 20 and the workpiece often generates a large torque stress, so that the edge end part of the first cutting edge 20 is easily subjected to edge breakage, therefore, the scheme is characterized in that the tapered first cutting guide edge 200 is arranged at the end part of the first cutting edge 20, so that the end part of the first cutting edge 20 can be reinforced and protected by the first cutting guide edge 200, the edge breakage when the first cutting edge 20 contacts the workpiece is avoided, meanwhile, the first cutting guide edge 200 can also perform guiding positioning on the first cutting edge 20 when the workpiece is subjected to the cutting processing by the first cutting edge 20, and the phenomenon of tool dislocation when the first cutting edge 20 performs the cutting processing is avoided, thereby improving the machining accuracy of the first tool bit 2.
Specifically, referring to fig. 1, 2, 4, 5, 7 and 9, the second cutting head 3 is a coarse-tooth milling cutter, a plurality of spiral second cutting edges 30 are arranged around the outside of the second cutting head 3 along the axial direction of the second cutting head 3, a second chip removal groove 31 is arranged between any two adjacent second cutting edges 30, and a conical second cutting guide edge 300 is arranged at a position, close to the end, of the cutting surface of any one second cutting edge 30; because the second cutting head 3 is a coarse-tooth milling cutter, the rough machining of the workpiece by the cutter can be realized by the second cutting head 3, and similarly, when the second cutting head 3 performs the cutting machining of the workpiece by the second cutting edge 30, the contact part of the edge end part of the second cutting edge 30 and the workpiece also generates a large torque stress, so that the edge end part of the second cutting edge 30 is easily subjected to edge rolling breakage, and therefore, the scheme is characterized in that the end part of the second cutting edge 30 is provided with the second cutting guide edge 300 which is tapered, so that the end part of the second cutting edge 30 is reinforced and protected by the second cutting guide edge 300, the edge rolling breakage when the second cutting edge 30 contacts the workpiece is avoided, and meanwhile, the second cutting guide edge 300 can perform the cutting machining of the workpiece by the second cutting edge 30, and plays a guiding and positioning role on the second cutting edge 30, so as to avoid the phenomenon that the second cutting edge 30 runs out and misplaces during the cutting machining, thereby greatly improving the machining precision of the second tool bit 3.
Specifically, referring to fig. 3, 2 and 4, the first exhaust holes 100 are distributed in the first chip groove 21 in a one-to-one correspondence manner, and the second exhaust holes 110 are distributed in the second chip groove 31 in a one-to-one correspondence manner, where it should be noted that in the present embodiment, the first exhaust holes 100 and the second exhaust holes 110 are preferably respectively disposed in the first chip groove 21 and the second chip groove 31, so as to facilitate the air flow to be exhausted through the first exhaust holes 100 or the second exhaust holes 110, so that the metal scraps in the first chip groove 21 or the second chip groove 31 can be purged, and the metal scraps are prevented from being blocked in the first chip groove 21 or the second chip groove 31, and further the processing effect of the entire tool is affected.
Specifically, referring to fig. 3 and 4, the first cutting guide edge 200 and the second cutting guide edge 300 are made of cemented carbide; the cemented carbide is advantageous to improve the strength and wear resistance of the first and second cutting guide edges 200 and 300, thereby preventing the first and second cutting guide edges 200 and 300 from being broken and damaged during use, so that the first and second cutting guide edges 200 and 300 can better protect and guide the first and second cutting edges 20 and 30, respectively.
Specifically referring to fig. 1, 2, 5 and 6, the sliding assembly includes a sliding groove 50 formed on the tool body 1 along the axial direction of the tool body 1, a sliding block 51 disposed in the sliding groove 50, slidably engaged with the sliding groove 50, and having a top connected to the inner wall of the protecting sleeve 4, a limiting screw hole 52 formed at two ends of the bottom surface of the sliding groove 50, and a limiting screw 53 disposed on the outer surface of the tool body 1, having one end in the length direction sequentially passing through the tool body 1 and the sliding block 51 and being adapted to the limiting screw hole 52, specifically, when the protecting sleeve 4 is pushed by a processing worker to slide, the protecting sleeve 4 can drive the sliding block 51 to slide in the sliding groove 50, so that the protecting sleeve 4 can slide on the outer surface of the tool body 1 by the engagement of the sliding block 51 and the sliding groove 50, and when the protecting sleeve 4 slides to a proper position (i.e. after the first tool bit 2 or the second tool bit 3 is shielded), the user can insert limiting screw 53 to limiting screw 52 to the cooperation through limiting screw 53 and limiting screw 52 realizes carrying out spacing fixed to lag 4.
Specifically, referring to fig. 1, fig. 2 and fig. 5, both ends of the protecting sleeve 4 in the axial direction are provided with thickened clamp handle portions 40; this scheme is through setting up thickening clamping handle portion 40 at the both ends of lag 4, and the main objective is in order to increase lag 4 and processing equipment and press from both sides the intensity and the rigidity of dress position department to do benefit to the processing personnel and press from both sides 1 fastening of cutter body on processing equipment through thickening clamping handle portion 40, and then improve lag 4's practicality.
The working principle of the invention is briefly explained as follows:
in specific implementation, when a processing person uses the tool to process a workpiece, the processing person can select to use the first tool bit 2 or the second tool bit 3 to process the workpiece according to the processing precision requirement of the workpiece, if the processing person uses the first tool bit 2 for processing initially, because the protecting sleeve 4 is fixed at the upper end of the sliding groove 50 through the limiting screw 53 and the limiting screw hole 52, the processing person can clamp the tool body 1 on processing equipment through the protecting sleeve 4 and enable the first tool bit 2 to face the workpiece, and after the tool body 1 rotates rapidly and processes the workpiece through the first tool bit 2, the first cutting guide edge 200 can guide and protect the first cutting edge 20 to prevent the first cutting edge 20 from being broken and damaged;
when a processing person needs to replace the second tool bit 3 to process a workpiece, the user can firstly detach the tool body 1 from the equipment, then unscrew the limit screw 53 from the limit screw hole 52 and the slide block 51 to remove the limit on the protective sleeve 4, then the user can push the protective sleeve 4 to slide downwards in the sliding groove 50 through the slide block 51, so that the protective sleeve 4 slides to the lower end from the upper end of the tool body 1 and shields the first tool bit 2, meanwhile, the processing person can screw the limit screw 53 into the limit screw hole 52 to fix and limit the protective sleeve 4, so that the protective sleeve 4 shields the first tool bit 2 and exposes the second tool bit 3, finally, the processing person turns the tool body 1 to install on the processing equipment, so that the second tool bit 3 faces downwards to the workpiece, and the workpiece is processed by the second tool bit 3, during the machining process of the second tool bit 3, the second cutting guide edge 300 can guide and protect the second cutting edge 30 to prevent the second cutting edge 30 from being broken and damaged;
in the process of machining the cutter body 1 (no matter the cutter body is machined by the first cutter head 2 or the second cutter head 3), the cutter body 1 can generate air flow by utilizing the high-speed rotation of the cutter body 1, the air flow is guided to enter the first air cooling flow channel 10 and the second air cooling flow channel 11 through the first air inlet flow channel 12 or the second air inlet flow channel 13 respectively under the guiding action of the flow guide piece 14 and the air guide port 140 and is finally discharged through the first air exhaust hole 100 or the second air exhaust hole 110, so that heat generated when the first cutter head 2 or the second cutter head 3 works can be dissipated through the flowing of the air flow, the first cutter head 2 or the second cutter head 3 is cooled, further, the condition that the cutter is broken and damaged due to uneven cold and hot handles due to the adoption of spraying and cooling is avoided, the use effect of the cutter is greatly improved, the service life of the cutter is effectively prolonged, and meanwhile in the scheme, the air current is when exhausting through first hole 100 or the second hole 110 of airing exhaust, can blow off adnexed metal fillings on first tool bit 2 or the second tool bit 3, avoid it to adhere to on the tool bit and influence the machining precision of cutter, and this scheme is cooled down to the tool bit through the air current that cutter self produced, also effectively avoided the processing personnel in the course of working, need constantly to annotate cooling medium to the cutter and cool down, greatly reduced the work degree of difficulty of processing personnel, make the processing personnel can pay close attention to the course of working of cutter more, it is more convenient to make the cutter use.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A special cutter with a composite cutting edge comprises a cutter body (1) and is characterized in that a first cutter head (2) and a second cutter head (3) are respectively arranged at two ends of the cutter body (1) in the length direction, and a protective sleeve (4) is sleeved outside the cutter body (1) in a sliding mode through a sliding assembly;
a first air-cooling runner (10) and a second air-cooling runner (11) which are used for cooling a first tool bit (2) and a second tool bit (3) are respectively arranged at two ends of the interior of the tool body (1), a first air inlet runner (12) communicated with the first air-cooling runner (10) and a second air inlet runner (13) communicated with the second air-cooling runner (11) are respectively arranged on the outer surfaces of two ends of the tool body (1), flow guide pieces (14) are respectively arranged at the opening positions of the first air inlet runner (12) and the second air inlet runner (13), an inclined plane transition part which inclines downwards is arranged on one side of each flow guide piece (14), an air guide opening (140) is formed in the inclined plane transition part, the opening end of the air guide opening (140) expands outwards to be horn-shaped, the bottom end of the air guide opening (140) is respectively communicated with the first air inlet runner (12) or the second air inlet runner (13), the outer surfaces of the first cutter head (2) and the second cutter head (3) are respectively provided with a plurality of first air exhaust holes (100) and second air exhaust holes (110) which are in one-to-one correspondence with the first air cooling flow channels (10) and the second air cooling flow channels (11) and are communicated with the first air cooling flow channels and the second air cooling flow channels.
2. The special tool with the composite cutting edge as claimed in claim 1, wherein a plurality of flow deflectors (141) are circumferentially arranged on the inner wall of the air guide opening (140) along the delay axis direction, and a layer of sound-deadening sponge mat is adhered to each of two side plate surfaces of any one of the flow deflectors (141).
3. The special tool with the composite cutting edge as claimed in claim 1, wherein the first cutting head (2) is a fine-tooth milling cutter, a plurality of first cutting edges (20) which are arranged along the axial direction of the first cutting head (2) and are helical are arranged on the periphery of the outer portion of the first cutting head (2), a first chip removal groove (21) is arranged between any two adjacent first cutting edges (20), and a first cutting guide edge (200) which is conical is arranged on the cutting surface of any one first cutting edge (20) and close to the end portion of the cutting surface.
4. The special tool with composite cutting edge as claimed in claim 1, wherein said second cutting head (3) is a coarse-tooth milling cutter, and a plurality of spiral second cutting edges (30) are arranged around the outside of said second cutting head (3) along the axial direction of said second cutting head (3), a second chip-removing groove (31) is arranged between any two adjacent second cutting edges (30), and a second cutting guide edge (300) with a cone shape is arranged on the cutting surface of any one of said second cutting edges (30) near the end thereof.
5. The special tool with the composite cutting edge as set forth in claim 1, wherein the first air exhaust holes (100) are distributed in the first chip exhaust grooves (21) in a one-to-one correspondence, and the second air exhaust holes (110) are distributed in the second chip exhaust grooves (31) in a one-to-one correspondence.
6. The special tool with composite cutting edge as set forth in claim 3 or 4, wherein the first cutting guide edge (200) and the second cutting guide edge (300) are made of cemented carbide.
7. The special tool with the composite cutting edge as set forth in claim 1, wherein the sliding assembly comprises a sliding groove (50) formed in the tool body (1) along the axial direction of the tool body (1), a sliding block (51) disposed in the sliding groove (50), slidably engaged with the sliding groove (50), and having a top connected to the inner wall of the shield case (4), a limit screw hole (52) formed at both ends of the bottom surface of the sliding groove (50), and a limit screw (53) disposed on the outer surface of the tool body (1) and having a length direction end sequentially passing through the tool body (1) and the sliding block (51) and adapted to the limit screw hole (52).
8. Special tool with composite cutting edge according to claim 1, characterized in that the protective sleeve (4) is provided with a thickened clamping shank portion (40) at both ends in axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449499.9A CN114850551A (en) | 2022-04-24 | 2022-04-24 | Special cutter with composite cutting edge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449499.9A CN114850551A (en) | 2022-04-24 | 2022-04-24 | Special cutter with composite cutting edge |
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| CN114850551A true CN114850551A (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210449499.9A Pending CN114850551A (en) | 2022-04-24 | 2022-04-24 | Special cutter with composite cutting edge |
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| CN213052922U (en) * | 2020-06-08 | 2021-04-27 | 大富科技(安徽)股份有限公司 | Milling cutter with reaming function |
| CN215787009U (en) * | 2021-08-20 | 2022-02-11 | 常州红富士工具有限公司 | High-speed milling cutter for heavy cutting of aluminum alloy material |
| CN216126605U (en) * | 2021-08-17 | 2022-03-25 | 吉安富奇精密制造有限公司 | Double-end milling cutter capable of machining multiple surfaces |
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- 2022-04-24 CN CN202210449499.9A patent/CN114850551A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100124466A1 (en) * | 2008-11-18 | 2010-05-20 | Iscar, Ltd. | Trepanning Drill |
| CN204450362U (en) * | 2015-02-02 | 2015-07-08 | 南华大学 | Dual-head screwdriver |
| CN207770936U (en) * | 2018-01-19 | 2018-08-28 | 常州好得工具有限公司 | A kind of four blade milling cutters |
| CN108453311A (en) * | 2018-07-11 | 2018-08-28 | 林枫 | A kind of carbide-tipped reamer |
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| CN213052922U (en) * | 2020-06-08 | 2021-04-27 | 大富科技(安徽)股份有限公司 | Milling cutter with reaming function |
| CN216126605U (en) * | 2021-08-17 | 2022-03-25 | 吉安富奇精密制造有限公司 | Double-end milling cutter capable of machining multiple surfaces |
| CN215787009U (en) * | 2021-08-20 | 2022-02-11 | 常州红富士工具有限公司 | High-speed milling cutter for heavy cutting of aluminum alloy material |
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