CN213794442U

CN213794442U - PCD milling cutter with concave arcs of two edges

Info

Publication number: CN213794442U
Application number: CN202022757168.0U
Authority: CN
Inventors: 艾凡
Original assignee: Wuhan Jinboli Diamond Technology Co ltd
Current assignee: Wuhan Jinboli Diamond Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-27
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a PCD milling cutter with two concave circular arcs, which belongs to the technical field of cutting knives of industrial processing, and comprises a milling cutter body, wherein the upper end surface of the milling cutter body is provided with a cutter handle, the upper end of the cutter handle is fixedly provided with a fixed pin through a fastening block, the upper end of the fixed pin is fixedly provided with a milling cutter body, the upper surface of the milling cutter body is provided with a first circular arc cutting edge and a second circular arc cutting edge, the inner side of the fixed pin is fixedly provided with a bearing, an arc track is arranged, the whole cutting edge is in a preset arc structure, the surface of a workpiece can be processed into a specific arc surface at one time, compared with the winding milling process of gradually feeding a vertical milling cutter, the smooth finish of the arc surface processed by using the outer arc milling cutter is better, in addition, a plurality of cutting parts are uniformly arranged in the circumferential direction, the whole cutter head is uniformly stressed, the processing frequency is higher, the processing precision and the smooth finish are further ensured, and the angle cleaning hole is arranged, the blade and the blade groove are prevented from being positioned excessively, and the mounting precision of the blade is ensured.

Description

PCD milling cutter with concave arcs of two edges

Technical Field

The utility model belongs to the technical field of mechatronic equipment, concretely relates to concave circular arc PCD milling cutter of twolip.

Background

In machining, the cutter is the indispensable essential part of machine tool machining, and the quality of cutter influences the life of self, also influences machining's quality and production efficiency, adds man-hour to processing non-standard part, all is traditional integrative high-speed steel, carbide cutter, but traditional milling cutter can not once target in place when processing the formed part, need carry out tool changing processing even, greatly reduced machining efficiency, increased the processing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concave circular arc PCD milling cutter of twolip aims at solving and just forms circular curved surface by one shot processing among the prior art, has reduced the cutter and has changed the number of times, improves cutter life, therefore the milling cutter performance of circular arc structure chip pocket is more stable when processing same work piece, also is fit for the milling operation problem that feeds more greatly simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a PCD milling cutter with concave circular arcs on two edges comprises a milling cutter body, wherein a cutter handle is arranged on the surface of the upper end of the milling cutter body, a fixing pin is fixedly arranged at the upper end of the cutter handle through a fastening block, a milling cutter body is fixedly arranged at the upper end of the fixing pin, a first circular arc-shaped chip groove and a second circular arc-shaped chip groove are formed in the upper surface of the first circular arc-shaped blade, a second circular arc-shaped chip groove is formed in the upper surface of the second circular arc-shaped blade, end face cutting edges are arranged on the milling cutter body, circular corner cleaning holes are formed in two side faces of the upper end of the first circular arc-shaped blade and the second circular arc-shaped blade, air holes are formed in the upper surface of the fixing pin, a bearing is fixedly arranged on the inner side of the fixing pin, the problems of bright lines, the yin and yang surfaces and the like generated by processing parts of a conventional cutter are solved, and therefore the milling cutter performance of the chip grooves with circular arc structures is more stable when the same workpiece is processed, and is also suitable for milling operation with larger feed.

As an optimization of the utility model, the bolt hole has been opened to the one end of fastening block, be provided with the threaded rod on the dead bolt, thread fixed connection between threaded rod and the bolt hole.

As an optimization, the radius of circular arc cutting edge one and circular arc cutting edge two is 13mm, circular arc cutting edge one and circular arc cutting edge two and first convex chip groove and the convex chip groove phase-match of second.

As an optimization, the total length of the milling cutter body is 50mm, the milling cutter body is plated with a metal layer on the surface, and the diameter of the cutter head of the milling cutter body is 3.81 mm.

As an optimization of the utility model, milling cutter body one side is connected with the bearing, bearing outside fixedly connected with fixed pin.

As an optimization, the surface of handle of a knife is provided with anti-skidding stripe, anti-skidding stripe is the rubber material.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in this scheme can one-time working just form circular curved surface, reduced the cutter and changed the number of times, improve cutter life, therefore the milling cutter performance of circular arc structure chip pocket is more stable when processing same work piece, also is fit for the milling operation that feeds more greatly simultaneously, has increased threaded rod and bolt hole threaded connection, can follow the milling cutter body of different models to the fixed pin, when the blade takes place to roll up the sword and collapses the sword, convenient change, reduction in production cost.

2. The arc-shaped track is arranged, so that the cutting edge is integrally in a preset arc-shaped structure, the surface of a workpiece can be processed into a specific arc surface at one time, compared with the winding milling process of gradually feeding the end milling cutter, the smooth finish of the arc surface processed by the outer arc milling cutter is better, the whole cutter head is uniformly stressed, the processing frequency is higher, the processing precision and the smooth finish are further ensured, and the blade groove are prevented from being positioned excessively by arranging the corner cleaning hole, so that the mounting precision of the blade is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic plan view of the present invention;

fig. 3 is a schematic perspective view of the present invention;

fig. 4 is a schematic view of a partial structure of the present invention.

In the figure: 1. milling a cutter body; 2. a fixing pin; 3. a first arc blade; 4. a second arc blade; 5. a first arc chip groove; 6. a knife handle; 7. an end face cutting edge; 8. a fastening block; 9. bolt holes; 10. a threaded rod; 11. a milling cutter body; 12. a second arc chip groove; 13. clearing corner holes; 14. air holes are formed; 15. a bearing; 16. and (4) anti-skid stripes.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a PCD milling cutter with concave circular arcs on two edges comprises a milling cutter body 1, a cutter handle 6 is arranged on the upper end surface of the milling cutter body 1, a fixing pin 2 is fixedly arranged at the upper end of the cutter handle 6 through a fastening block 8, a milling cutter body 11 is fixedly arranged at the upper end of the fixing pin 2, a circular arc cutting edge 3 and a circular arc cutting edge two 4 are arranged on the upper surface of the milling cutter body 11, a first circular arc chip groove 5 is arranged on the upper surface of the circular arc cutting edge 3, a second circular arc chip groove 12 is arranged on the upper surface of the circular arc cutting edge two 4, an end face cutting edge 7 is arranged on the milling cutter body 11, circular corner cleaning holes 13 are arranged on two side faces of the upper ends of the circular arc cutting edge 3 and the circular arc cutting edge two 4, air vents 14 are arranged on the upper surface of the fixing pin 2, a bearing 15 is fixedly arranged on the inner side of the fixing pin 2, an arc track is arranged, the whole cutting edge is in a preset arc structure, the surface of a workpiece can be processed into a specific arc surface at one time, compared with a winding milling process of a step-by-step feeding vertical milling cutter, the smooth finish of the arc surface processed by the outer arc milling cutter is better, so that the whole cutter head is uniformly stressed, the processing frequency is higher, the processing precision and smooth finish are further ensured, and the blade groove are prevented from being positioned excessively by arranging the corner cleaning hole 13, so that the mounting precision of the blade is ensured.

The utility model discloses an in the concrete embodiment, the upper end surface of milling cutter body 1 is equipped with handle of a knife 6, there is fixed pin 2 handle 6 upper end through fastening block 8 fixed mounting, between the screw of fastening between 2 two parts of fixed pin, guarantee the position accuracy, the upper end fixed mounting of fixed pin 2 has milling cutter body 11, open on milling cutter body 11's upper surface has circular arc cutting edge 3 and circular arc cutting edge two 4, open on circular arc cutting edge 3's the top surface has first circular arc chip groove 5, first circular arc chip groove 5 and second circular arc chip groove 12 have played the smear metal and have flowed out along certain hubei province when the work piece is downcut by the cutter from the work piece, because excessive deformation in the in-process that flows, the nature of work piece material itself or receive too big stress and force the smear metal fracture, open on circular arc cutting edge two 4's upper surface has second circular arc chip groove 12, be equipped with terminal surface cutting edge 7 on milling cutter body 11, terminal surface cutting edge 7 end mills refers to utilize terminal surface cutting edge 7 that distributes on the milling cutter terminal surface to form planar milling cutter to mill and mills The method comprises the steps that circular corner cleaning holes 13 are formed in two side faces of the upper end of a first circular arc blade 3 and a second circular arc blade 4, air holes 14 are formed in the upper surface of a fixing pin 2, a bearing 15 is fixedly mounted on the inner side of the fixing pin 2, torsion is generated inside the bearing 15 through mutual friction to drive a product to rotate, and a milling cutter body 11 is driven to rotate through the bearing 15.

Specifically, referring to fig. 4, a bolt hole 9 is formed at one end of the fastening block 8, a threaded rod 10 is disposed on the fixing pin 2, and the threaded rod 10 is fixedly connected with the bolt hole 9 through a thread.

In this embodiment: through threaded rod 10 and bolt hole 9 threaded connection, can advance to fixed pin 2 with the milling cutter body 11 of different models, when the blade takes place the sword and collapses the sword, conveniently change reduction in production cost.

Specifically, referring to fig. 1 and 1, the radius of the first circular arc blade 3 and the radius of the second circular arc blade 4 are 13mm, and the first circular arc blade 3 and the second circular arc blade 4 are matched with the first circular arc chip groove 5 and the second circular arc chip groove 12.

In this embodiment: the radius of the first arc-shaped blade 3 and the radius of the second arc-shaped blade 4 are 13mm, and the first arc-shaped blade 3 and the second arc-shaped blade 4 are matched with the first arc-shaped chip groove 5 and the second arc-shaped chip groove 12.

Specifically, referring to fig. 3, the milling cutter body 1 has a total length of 50mm, the milling cutter body 11 is coated with a metal layer, and the diameter of the cutting head of the milling cutter body 11 is 3.81 mm.

In this embodiment: the milling cutter body 1 is 50mm in total length, the surface of the milling cutter body 11 is plated with a metal layer, the plated metal layer has good processability but is thinner and corrosion resistant, and the diameter of a cutter head of the milling cutter body 11 is 3.81 mm.

Specifically, referring to fig. 1, one side of the milling cutter body 11 is connected to a bearing 15, and the outer side of the bearing 15 is fixedly connected to a fixing pin 2.

In this embodiment: the milling cutter body 11 can be driven to rotate by the bearing 15 on the inner side of the fixing pin 2, and the milling cutter body 11 is driven to rotate by the torsion generated by mutual friction inside the bearing 15.

Specifically, referring to fig. 3, the surface of the knife handle 6 is provided with anti-slip stripes 16, and the anti-slip stripes 16 are made of rubber.

In this embodiment: the anti-skid stripes 16 are arranged on the knife handle 6, so that the knife handle can be used in an anti-skid and wear-resistant mode, the anti-skid stripes 16 are made of rubber, and the rubber is water-resistant, air-tight and excellent in bonding performance.

The utility model discloses a theory of operation and use flow: the upper end of a cutter handle 6 is fixedly provided with a fixed pin 2 through a fastening block 8, the position accuracy is ensured between screws fastened between two parts of the fixed pin 2, the upper end of the fixed pin 2 is fixedly provided with a milling cutter body 11, the upper surface of the milling cutter body 11 is provided with a first arc-shaped cutting edge 3 and a second arc-shaped cutting edge 4, the upper surface of the first arc-shaped cutting edge 3 is provided with a first arc-shaped chip groove 5, the first arc-shaped chip groove 5 and a second arc-shaped chip groove 12 enable chips to flow out along a certain beard track when being cut off from a workpiece by a cutter, the chips are forced to break due to excessive deformation, the nature of the workpiece material or excessive stress in the flowing-out process, the upper surface of the second arc-shaped cutting edge 4 is provided with a second arc-shaped chip groove 12, the milling cutter body 11 is provided with an end face cutting edge 7, and the end face cutting edge 7 is a planar milling method by utilizing the end face cutting edges 7 distributed on the end face of the milling cutter, the two side surfaces of the upper ends of the first arc cutting edge 3 and the second arc cutting edge 4 are provided with circular corner cleaning holes 13, the blades and the blade grooves are prevented from being positioned too far, the mounting accuracy of the blades is ensured, the upper surface of the fixing pin 2 is provided with the vent holes 14, the inner side of the fixing pin 2 is fixedly provided with the bearing 15, the inside of the bearing 15 generates torsion through mutual friction to drive a product to rotate, the milling cutter body 11 is driven to rotate through the bearing 15, a circular curved surface can be formed through one-time processing, the replacement frequency of the cutter is reduced, the service life of the cutter is prolonged, the processed circular curved surface has good highlight effect, the problems of bright lines, negative and positive chip surfaces and the like generated by processing parts by a conventional cutter are solved, therefore, when the same workpiece is processed, the milling cutter with an arc structure is more stable in performance, meanwhile, the milling operation with larger feed is also suitable, and the threaded connection of the threaded rod 10 and the bolt hole 9 is increased, can follow the milling cutter body 11 of different models to fixed pin 2, when the blade takes place to roll up the sword and collapse the sword, convenient change, and reduction in production cost, the arc orbit sets up, makes the whole predetermined arc structure that is of cutting edge, and workpiece surface can once only process into specific arc surface, compare with gradually feeding end mill's around milling technology, the arc surface finish degree of using this outer arc milling cutter processing is better, makes the whole even atress of tool bit, and the process frequency is higher, further guarantees machining precision and finish degree.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a concave circular arc PCD milling cutter of twolip which characterized in that: comprises a milling cutter body (1), a cutter handle (6) is arranged on the surface of the upper end of the milling cutter body (1), the upper end of the knife handle (6) is fixedly provided with a fixed pin (2) through a fastening block (8), the upper end of the fixed pin (2) is fixedly provided with a milling cutter body (11), the upper surface of the milling cutter body (11) is provided with a first arc blade (3) and a second arc blade (4), a first circular arc chip groove (5) is formed in the upper surface of the first circular arc blade (3), the upper surface of the second arc-shaped blade (4) is provided with a second arc-shaped chip groove (12), the milling cutter body (11) is provided with an end face cutting edge (7), two side faces of the upper end of the first arc cutting edge (3) and the second arc cutting edge (4) are provided with round corner cleaning holes (13), the upper surface of the fixing pin (2) is provided with an air hole (14), and the inner side of the fixing pin (2) is fixedly provided with a bearing (15).

2. The PCD milling cutter according to claim 1, wherein: bolt hole (9) have been opened to the one end of fastening block (8), be provided with threaded rod (10) on fixed pin (2), screw thread fixed connection between threaded rod (10) and bolt hole (9).

3. The PCD milling cutter according to claim 1, wherein: the radius of the first arc-shaped blade (3) and the second arc-shaped blade (4) is 13mm, and the first arc-shaped blade (3) and the second arc-shaped blade (4) are matched with the first arc-shaped chip groove (5) and the second arc-shaped chip groove (12).

4. The PCD milling cutter according to claim 1, wherein: the milling cutter body (1) is 50mm in total length, the milling cutter body (11) is plated with a metal layer on the surface, and the diameter of a cutter head of the milling cutter body (11) is 3.81 mm.

5. The PCD milling cutter according to claim 1, wherein: one side of the milling cutter body (11) is connected with a bearing (15), and the outer side of the bearing (15) is fixedly connected with a fixing pin (2).

6. The PCD milling cutter according to claim 1, wherein: the surface of the knife handle (6) is provided with anti-slip stripes (16), and the anti-slip stripes (16) are made of rubber.