CN217492835U - High-speed finish machining milling cutter - Google Patents
High-speed finish machining milling cutter Download PDFInfo
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- CN217492835U CN217492835U CN202221368177.3U CN202221368177U CN217492835U CN 217492835 U CN217492835 U CN 217492835U CN 202221368177 U CN202221368177 U CN 202221368177U CN 217492835 U CN217492835 U CN 217492835U
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Abstract
The utility model relates to a high-speed finish machining milling cutter, include: the cutter part, the transition part and the cutter handle part are coaxially arranged along a first straight line direction in sequence; an inner hole is formed in the milling cutter, counter bores are formed in the end face and the base face of the milling cutter, the inner hole extends to be connected with the two counter bores along a first straight line direction, and the diameter of each counter bore is larger than that of the inner hole. The cutting coolant is conveniently delivered to the position of the cutter head of the milling cutter through the conduction of the cutting coolant in the inner hole of the milling cutter. The cutting coolant in the counter bore can also cool chips contained in the counter bore, so that the chips are prevented from being adhered to the front cutter face of the aluminum alloy cutter or the processed surface, and the processing precision and the surface quality are guaranteed.
Description
Technical Field
The utility model relates to a contour machining field especially relates to a high-speed finish machining milling cutter.
Background
The finish milling cutter is used as a milling cutter with higher processing precision, and in order to ensure higher product precision during processing, higher rotating speed is often adopted to improve cutting force. However, during the high-speed milling process, the high-speed rotation of the milling cutter causes the friction between the milling cutter and the processed material to be more severe, and a large amount of heat generated by the friction is accumulated on the tooth grooves and the cutting positions of the workpiece, so that the workpiece and the cutter are easily subjected to thermal deformation. On the other hand, when processing aluminium alloy material in particular, if the piece that is cut off by milling cutter is detained when being close to in milling cutter cutting position department, receive easily under the high temperature influence on the milling cutter, and because piece volume is little heat up and change more and produce the heat altered shape for the piece adhesion is at the cutter rake face of aluminum alloy or the surface that has processed, will lead to the blade to produce the long-pending bits tumour if the piece adhesion is on the cutter of aluminum alloy, thereby lead to the machining precision of work piece to reduce, surface roughness worsens, cutter life-span reduces. When the scraps are adhered to the surface of the machined workpiece, the machining precision and the surface roughness of the workpiece are greatly influenced, so that the machined workpiece is difficult to reach the standard.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the high-speed finish machining milling cutter is provided, and the problem that the temperature is too high when the milling cutter is machined can be solved.
The application provides a high-speed finish machining milling cutter includes: the cutter part, the transition part and the cutter handle part are coaxially arranged along a first straight line direction in sequence;
the milling cutter is characterized in that an inner hole is formed in the milling cutter, counter bores are formed in the end face and the base face of the milling cutter, the inner hole extends to be connected with the two counter bores along a first straight line direction, and the diameters of the counter bores are larger than those of the inner hole.
When the milling cutter is stressed to a certain depth to form a large workpiece, the cutting cooling liquid is difficult to be guided into the cutting head of the milling cutter, and in the scheme, the cutting cooling liquid is conducted through the inner hole in the milling cutter, so that the cutting cooling liquid is conveniently conveyed to the cutter head of the milling cutter. On the other hand, the setting of counter bore enlarges the holding bits ability of tool bit, and the cutting coolant liquid of the transport of hole also can be sent into to the counter bore of milling cutter terminal surface department to conveniently cool down the piece that holds in the counter bore, with avoid because of the high temperature piece adhesion at the cutter rake face of aluminum alloy or the surface that has processed. Meanwhile, the cutting cooling liquid in the inner hole is continuously fed into the counter bore, so that the cutting cooling liquid is convenient to carry the chippings to be discharged from the counter bore.
In one embodiment, the connecting position of the counter bore and the inner bore is provided with an interface.
In one embodiment, the side wall of the interface gradually shifts toward the inner wall side of the counterbore in the direction of the counterbore along the inner bore.
In one embodiment, the axes of the inner hole and the counter bore are positioned on the axis of the milling cutter, and the counter bore is arranged at the central position of the end face or the base face of the milling cutter.
In one embodiment, a plurality of spiral chip grooves are formed in the periphery of the cutter part, and the periphery of the cutter part is partitioned by the chip grooves to form a peripheral edge; the counter bore comprises a first counter bore arranged on the end face;
the peripheral edge and the end face are intersected to form an end edge, and the end edge is circumferentially distributed on the outer side of the first counter bore.
In one embodiment, the side wall of the first counter bore forms an inner side of the end blade compared with the end blade, the cutting corner of the end blade is arranged on the edge of the other side of the end blade corresponding to the inner side, and the edge is provided with a chamfer.
In one embodiment, a chip groove is formed between two adjacent end blades and corresponds to the chip groove, and the chip groove extends to the groove wall of the chip groove from the first counter bore in the radial direction.
In one embodiment, the intersection of the flutes, flutes and end edges form cutting corners.
In one embodiment, the number of the chip grooves is six, and the included angles between two adjacent chip grooves and the axis of the milling cutter are different.
In one embodiment, an amorphous film layer is attached to the surface of the alloy substrate of the cutter part.
Drawings
Fig. 1 is a front view of a milling cutter according to an embodiment of the present invention;
fig. 2 is a partial cross-sectional view of a milling cutter according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic partial structural view of a cutter portion of a milling cutter according to an embodiment of the present invention;
fig. 5 is a side view of a milling cutter according to an embodiment of the present invention;
fig. 6 is a partially enlarged schematic view of a portion B in fig. 5.
The attached drawings are marked as follows:
11. a cutter portion;
111. a chip groove;
112. a peripheral edge; 1121. a back side; 1122. a seamed edge;
113. an end face; 114. a first counterbore;
115. an end blade; 1151. cutting corners; 1152. an inner side;
116. a chip pocket;
12. a transition section;
13. a shank portion;
131. a base surface; 132. a second counterbore;
14. an inner bore; 141. an interface.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
At present, finish milling cutters are used in high precision finishing steps, which provide the finish milling cutters with greater cutting force through high-speed rotation, so that the surface quality of workpieces processed by the finish milling cutters is higher. The aluminum alloy scroll plate is used as a core component of a scroll compressor in a new energy automobile, and the processing precision of the aluminum alloy scroll plate directly influences the working performance of the scroll compressor. The scroll plate is taken as a typical curved surface part with a deep cavity and a thin wall, and the requirements on processing precision and surface quality are high. In order to ensure the machining precision of the aluminum alloy scroll plate, a finish milling cutter is often required to perform finish machining treatment on the machined surface. The inventor discovers that during the finish machining of the aluminum alloy scroll plate:
because the tooth spaces of the aluminum alloy scroll are deep and the gap width is narrow, when the finish milling cutter extends into the tooth spaces of the aluminum alloy scroll to be processed, the gap between the finish milling cutter and the wall of the groove is difficult to meet the requirement that the cutting cooling liquid nozzle extends into the gap. However, the rotation speed of the original fine milling cutter is higher than that of the milling cutter used for rough machining, and heat generated by friction in the machining process is higher, so that the workpiece and the cutter are easy to generate thermal deformation.
To address the above-mentioned problems, referring to fig. 1, fig. 1 is a front view of a milling cutter according to some embodiments in the present application. The application provides a high-speed finish machining milling cutter includes: the cutting tool comprises a cutting tool part 11, a transition part 12 and a cutter handle part 13, wherein the cutting tool part 11, the transition part 12 and the cutter handle part 13 are coaxially arranged along a first straight direction in sequence.
With further reference to fig. 2, 3, fig. 2 is a partial cross-sectional view of a milling cutter according to some embodiments of the present application, and fig. 3 is a partial enlarged schematic view at a in fig. 2Figure (a). The milling cutter is internally provided with an inner hole 14, the end surface 113 and the base surface 131 of the milling cutter are provided with counter bores, the inner hole 14 extends along a first straight line direction to be connected with the two counter bores, and the diameter of each counter bore is larger than that of the inner hole 14. The diameter of the counter bore is phi 1 The diameter of the inner hole 14 is phi 2 Wherein, phi is satisfied 1 >Φ 2 。
The inner hole 14 is a linear long hole, and both ends of the inner hole 14 are connected with counterbores. In this embodiment, the cutter portion 11 and the shank portion 13 are located at both ends of the milling cutter. Thus, the end face 113 is located on an end of the cutter portion 11 remote from the transition portion 12. The base surface 131 is located on an end of the shank portion 13 remote from the transition portion 12. The tool portion 11 has a diameter different from that of the shank portion 13. Specifically to the present embodiment, the diameter of the shank 13 is d 1 The diameter d2 of the outer periphery of the cutter part 11 and the diameter d of the shank 13 1 Larger than the diameter d of the outer periphery of the cutter portion 11 2 So as to reduce the chattering amplitude of the milling cutter in order to increase the clamping rigidity when the machine tool clamps the shank portion 13 of the cutter. To ensure stability of high-speed cutting by the cutter, the core thickness d of the cutter portion 11 0 Is the diameter d of the outer periphery of the cutter portion 11 2 0.75 to 0.80 times of
The cutter portion 11 and the shank portion 13 are connected by a tapered transition portion 12. The diameter of the counterbore is greater than the diameter of the bore 14, and specifically the area of the counterbore is greater than the bore 14, and the diameter of the bore 14 is much smaller than the counterbore in order to avoid the flow of cut debris from the counterbore into the bore 14.
The counterbores include a first counterbore 114 on the end face 113 and a second counterbore 132 on the base face 131. First, the flow direction of the cutting coolant is that the second counterbore 132 flows towards the first counterbore 114, and the cross-sectional area of the counterbore is much larger than that of the inner hole 14, so that when the cutting coolant in the second counterbore 132 passes through the long and narrow inner hole 14, the flow speed of the cutting coolant in the inner hole 14 is increased, the acting force of the cutting coolant from the inner hole 14 impacting the first counterbore 114 is increased, and the phenomenon that the chips are guided to the inner hole 14 from the first counterbore 114 to cause blockage is avoided.
On the other hand, the volume of the first counterbore 114 enlarges the chip accommodating space, thereby avoiding the chips from adhering to the knife edge to scratch the workpiece. In addition, the first counterbore 114 with a large volume reserves enough buffer space for the cutting coolant sprayed out of the inner hole 14, so that the high-pressure cutting coolant in the inner hole 14 is prevented from directly spraying a workpiece, and the milling cutter is subjected to reaction force to generate deflection vibration. The chatter generated during the cutting of the milling cutter can cause the serious chatter marks on the surface of the workpiece, thereby influencing the surface roughness of the workpiece. The volume of the first counterbore 114 is large so that more cutting cooling liquid can be buffered in the first counterbore 114, and the cooling effect is ensured. Meanwhile, the cutting coolant cached in the first counter bore 114 can also cool the chips contained in the first counter bore 114, so that the chips can be effectively prevented from being adhered to the front tool face or the machined surface of the aluminum alloy tool at high temperature to influence the machining precision and the surface roughness of the workpiece.
According to some embodiments of the present application, an interface 141 is provided at the location of the counterbore to the bore 14.
The interface 141 is used to improve the connection strength between the counterbore and the inner hole 14. Because the cross-sectional areas of the counterbore and the inner bore 14 are different, the junction of the counterbore and the inner bore 14 is a stepped shoulder. When the cutting cooling liquid passes through the connecting position of the counter bore and the inner bore 14, the cutting cooling liquid is easy to scour the stepped shoulder parts on the counter bore and the inner bore 14, and the shoulder parts are easy to deform due to the scouring of the cutting cooling liquid for a long time, so that the service life of the milling cutter is influenced.
In the present embodiment, by providing the interface 141 at the junction of the counterbore and the bore 14, the cutting coolant water flow is less resistant when passing through the interface 141, resulting in smoother delivery. And the service life of the cooling channel in the milling cutter is prolonged. Wherein the cooling channel is a cutting coolant passage formed by the counterbore and the inner bore 14.
According to some embodiments of the present application, the sidewall of the interface 141 is gradually offset toward the inner wall side of the counterbore in the direction of the counterbore along the bore 14.
In this embodiment, a chamfer is formed at the interface 141 to direct the flow of water through the interface 141 into the bore 14 or into the counterbore. Specifically, the counter bore includes the first counter bore 114 that is located on the terminal surface 113, the interface 141 that is connected with the first counter bore 114 enlarges gradually along water flow direction area, make this interface 141 inner wall incline towards the first counter bore 114 inner wall direction, because, when highly compressed cutting coolant liquid is spout from the hole 14 in, the water pressure influence of hole 14 cutting coolant liquid, cutting coolant liquid will spray forward, and interface 141 sets up the chamfer, the cutting coolant liquid of spouting from the hole 14 in is guided by interface 141 and is dispersed and will be sprayed towards the first counter bore 114 inner wall direction, make first counter bore 114 be in cutting liquid filling state, in order to guarantee the cooling effect to the cutter blade.
According to some embodiments of the present application, the axis of the bore 14, the counterbore, is located on the axis of the mill, and the counterbore is located at a central location on the mill end face 113 or base 131.
The inner hole 14 and the counter bore are arranged on the axial line position of the milling cutter, so that the cutting coolant in the inner hole 14 and the counter bore is same with the cutting edge position of each cutter on the milling cutter, and the condition that the cooling effect of individual cutters is insufficient is avoided.
According to some embodiments of the present application, further, a plurality of helical flutes 111 are provided on the outer circumference of the cutter portion 11, and the circumferential edge 112 is formed by the flutes 111 on the circumference of the cutter portion 11; the counterbore includes a first counterbore 114 provided in the end face 113;
the peripheral edge 112 intersects the end surface 113 to form an end edge 115, and the end edge 115 is circumferentially arranged outside the first counter bore 114.
Referring to fig. 4, fig. 4 is a partial structural schematic view of a cutter head on a milling cutter according to some embodiments of the present application. Six chip grooves 111 are provided, the adjacent chip grooves 111 divide the side wall of the cutter part 11 into a peripheral blade 112, and the chip grooves 111 extend from the end surface 113 toward the base surface 131 in the first linear direction. The peripheral edge 112 forms an end edge 115 on the side close to the end surface 113. A first counterbore 114 extends through the end surface 113, the first counterbore 114 leaving a location on the end surface 113 near the center. The cutter at the end surface 113 is in an annular structure, the thickness from the inner wall of the first counter bore 114 to the outer peripheral side of the cutter part 11 is reduced, the position where the end cutting edge 115 is reserved is reduced, the length of the end cutting edge 115 is reduced, the contact area of the end cutting edge 115 and the workpiece is reduced, and heat generated by friction between the end cutting edge 115 and the workpiece is reduced. Is more beneficial to protecting the cutter and the workpiece.
Referring to fig. 5, 6, fig. 5 is a side view of a milling cutter according to some embodiments of the present application, and fig. 6 is an enlarged partial schematic view at B in fig. 5. According to some embodiments of the present application, the side wall of the first counterbore 114 forms an inner side 1152 of the end edge 115 compared to the end edge 115, the cutting angle 1151 of the end edge 115 is provided on the other side edge 1122 of the end edge 115 corresponding to the inner side 1152, and the edge 1122 is chamfered.
Specifically, as shown in fig. 4, a surface formed by dividing the outer periphery of the tool portion 11 by the adjacent two chip flutes 111 is a blade back 1121, and the blade back 1121 intersects with the end edge 115 to form an edge 1122. The edge 1122 is provided with a chamfer, so that the edge 1122 is prevented from contacting a workpiece, and the abrasion of the edge 1122 can be effectively reduced. More specifically, the upper edge 1122 side of the end edge 115 is offset from the inner side 1152 toward the side away from the axis, so that the end edge 115 forms a 2 ° reentrant angle, further reducing the contact area of the end edge 115 with the workpiece, and increasing the cutting force of the end edge 115 while reducing the amount of heat generated by friction.
According to some embodiments of the present application, a chip groove 116 is formed between two adjacent end edges 115, the chip groove 116 corresponds to the chip groove 111, and the chip groove 116 extends from the first counterbore 114 to the wall of the chip groove 111 in the radial direction.
The first counterbore 114, the chip groove 116 and the chip groove 111 are connected to form a complete chip removal passage. The chips in the first counter bore 114 are conveyed into the chip discharge groove 111 through the chip groove 116, so that the chips of the milling cutter can be smoothly guided out. Meanwhile, because the cutting coolant is continuously sent out from the inner hole 14, the cutting coolant in the first counterbore 114 is replaced, and the redundant cutting coolant in the first counterbore 114 also flows out from the chip groove 116. With the cutting coolant flowing out, the cutting coolant will carry some of the debris out of the first counterbore 114.
According to some embodiments of the present application, the intersection of flutes 116, flutes 111, and end edges 115 form solid cutting corners 1151. The strength of the cutting angle 1151 is improved, and the cutting capacity is better.
According to some embodiments of the present application, as shown in fig. 5, the number of the flutes 111 is six, and the included angles formed by the adjacent flutes 111 and the axial center of the milling cutter are different.
6 equal-width spiral chip grooves 111 which intersect with the body of the cutter part 11 to form 6 peripheral edges 112; the 6 circumferential edges 112 are distributed in unequal circumferential distribution parallel to the vertical direction of the end edge 115 by taking the axis of the cutter as the center, and the angle deviation of the included angle between every two adjacent end edges 115 is between 4 and 10 degrees (namely theta) 1 ≠θ 2 、θ 2 ≠θ 3 、θ 3 ≠θ 4 、θ 4 ≠θ 5 、θ 5 ≠θ 6 、θ 1 ≠θ 6 ). The milling is essentially intermittent cutting machining, the cutting edge of a cutter periodically cuts in and cuts out a workpiece, and an unequal-tooth milling cutter can generate alternating cutting frequency during high-speed cutting and is not easy to resonate with a machine tool, so that the vibration of the cutter during milling is effectively inhibited.
According to some embodiments of the present application, an amorphous film layer is attached to the surface of the alloy substrate of the cutter portion 11. Specifically, the alloy substrate material of the milling cutter is an ultra-fine grain hard alloy bar with 9% of cobalt content and high hardness HRA. The sand blasting passivation treatment of the cutting edge of the cutter can not only promote the cutting edge to form round angle passivation, eliminate or reduce the micro defects of the cutting edge, but also improve the surface smoothness of the groove and the back of the cutter, reduce the friction coefficient of the contact between the cutting chips and the surface of the cutter and improve the chip removal efficiency. The amorphous film layer is adhered to the surface of the cutter, so that the comprehensive mechanical property of the surface of the cutter can be further improved. The amorphous film layer is a diamond-like coating (DLC) prepared by Chemical Vapor Deposition (CVD). Diamond-like carbon (DLC) films have high hardness, high elastic modulus, low friction factor, wear resistance, and good vacuum tribological properties, and are widely used in coatings for milling cutters. In addition, the DLC coating has good anti-adhesion property to nonferrous metals such as aluminum alloy and the like, can effectively prevent the adhesion of cutting chips in the cutting process of the cutter, avoids forming built-up edges, and ensures the processing quality of the milling cutter.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A high speed finish milling cutter, comprising: the tool comprises a tool part, a transition part and a tool shank part, wherein the tool part, the transition part and the tool shank part are coaxially arranged in sequence along a first straight line direction;
the milling cutter is characterized in that an inner hole is formed in the milling cutter, counter bores are formed in the end face and the base face of the milling cutter, the inner hole extends to be connected with the two counter bores along the first straight line direction, and the diameters of the counter bores are larger than those of the inner hole.
2. The milling cutter according to claim 1, wherein an interface is provided at the location of the connection of the counterbore to the bore.
3. The milling cutter according to claim 2, wherein the side wall of the interface is gradually offset toward the inner wall side of the counterbore in a direction of the counterbore along the inner bore.
4. The milling cutter according to any one of claims 1-3, wherein the axis of the bore, counterbore, is located on the axis of the milling cutter, the counterbore being provided at a central location on the end face or base surface of the milling cutter.
5. The milling cutter according to claim 4, wherein the cutter portion is provided with helical flutes on its outer periphery, the flutes circumferentially separating the cutter portion to form peripheral edges; the counter bore comprises a first counter bore arranged on the end face;
the peripheral edge and the end face are intersected to form an end edge, and the end edge is circumferentially distributed on the outer side of the first counter bore.
6. The milling cutter according to claim 5, wherein the first counterbore side wall forms an inner side of the end blade as compared to the end blade, the cutting corner of the end blade being provided on an edge of the other side of the end blade corresponding to the inner side, the edge being provided with a chamfer.
7. The milling cutter according to claim 5, wherein chip flutes are formed between adjacent end edges, said chip flutes corresponding to said chip flutes, said chip flutes extending radially from said first counter bore to said chip flute walls.
8. The milling cutter according to claim 7, wherein the intersection of the chip flute, the chip flute and the end edge forms a cutting corner.
9. The milling cutter according to claim 5, wherein the number of flutes is six, and the flutes of adjacent flutes are angled at different angles to the axis of the cutter.
10. The milling cutter according to claim 1, wherein an amorphous film layer is attached to the surface of the alloy substrate of the cutter portion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221368177.3U CN217492835U (en) | 2022-06-02 | 2022-06-02 | High-speed finish machining milling cutter |
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| CN202221368177.3U CN217492835U (en) | 2022-06-02 | 2022-06-02 | High-speed finish machining milling cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000357A (en) * | 2023-01-19 | 2023-04-25 | 一汽解放汽车有限公司 | Milling cutter and oil sludge model processing system |
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2022
- 2022-06-02 CN CN202221368177.3U patent/CN217492835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000357A (en) * | 2023-01-19 | 2023-04-25 | 一汽解放汽车有限公司 | Milling cutter and oil sludge model processing system |
| CN116000357B (en) * | 2023-01-19 | 2024-06-04 | 一汽解放汽车有限公司 | Milling cutter and oil sludge model processing system |
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