CN209867395U - Titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter - Google Patents
Titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter Download PDFInfo
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- CN209867395U CN209867395U CN201920779380.1U CN201920779380U CN209867395U CN 209867395 U CN209867395 U CN 209867395U CN 201920779380 U CN201920779380 U CN 201920779380U CN 209867395 U CN209867395 U CN 209867395U
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Abstract
The utility model discloses a titanium alloy work piece face of cylinder recess boring milling cutter piece and cutter, boring milling cutter piece includes the cutter body and connects the tool bit on the cutter body, the tool bit includes up end, lower terminal surface, medial surface, lateral surface and preceding terminal surface, and the up end is indent arcwall face, and the lateral surface is from last inclined plane to the slope of medial surface direction extremely down, preceding terminal surface is from last to the inclined plane to cutter body direction slope down, forms main cutting edge between up end and the lateral surface, forms vice cutting edge between up end and the preceding terminal surface, forms transition sword between preceding terminal surface and the lateral surface, when feeding along work piece axial cutting, form main declination between main cutting edge and the cutting feed direction, main declination is 91-93. The utility model can well solve the problem that when the surface curved surface groove of the titanium alloy cylindrical workpiece is processed, the back chipping is not thorough and needs secondary back chipping treatment; and the cutter parts can be conveniently replaced according to the processing parameters and the workpiece materials of different workpieces, and the problem of poor cutter universality is solved.
Description
Technical Field
The utility model relates to a special metal cutting process technical field, in particular to titanium alloy work piece face of cylinder recess boring and milling blade and cutter.
Background
Titanium is an important structural metal developed in the 50 s of the 20 th century, and titanium alloy is widely used in various fields due to the characteristics of high strength, good corrosion resistance, high heat resistance and the like. The importance of titanium alloy materials is recognized in many countries around the world, and the titanium alloy materials are researched, developed and put into practical use. The TC4 titanium alloy commonly used for titanium alloy workpieces has a series of advantages of excellent corrosion resistance, small density, high specific strength, good toughness and weldability and the like, and is successfully applied to the departments of aerospace, petrochemical industry, shipbuilding, automobiles, medicine and the like.
Due to the specific material characteristics of titanium alloy materials, when the existing processing cutter is used for processing a curved surface groove on the surface of a titanium alloy cylindrical workpiece, incomplete back chipping or secondary back chipping can often occur, and the problems of cutter beating and cutter melting can be caused; and often need adopt special cutter to process, just need to design separately when the work piece parameter changes, lead to the use of cutter, development cost is higher, very big increase the processing cost of work piece.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems in the prior art, and provides a titanium alloy workpiece cylindrical surface groove boring and milling blade and a cutter, which can well solve the problem that when the surface curved surface groove of the titanium alloy cylindrical workpiece is processed, the back chipping is not thorough and needs secondary back chipping treatment; and the cutter parts can be conveniently replaced according to the processing parameters and the workpiece materials of different workpieces, and the problem of poor cutter universality is solved.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the cutter head comprises an upper end face, a lower end face, an inner side face, an outer side face and a front end face, the upper end face is an inwards concave arc-shaped face, the outer side face is an inclined face inclined towards the inner side face from top to bottom, the front end face is an inclined face inclined towards the cutter body from top to bottom, a main cutting edge is formed between the upper end face and the outer side face, an auxiliary cutting edge is formed between the upper end face and the front end face, a transition edge is formed between the front end face and the outer side face, when the cutter head is axially cut and fed along a workpiece, a main deflection angle is formed between the main cutting edge and the cutting and feeding direction, and the main deflection angle is 91-93 degrees.
In the above technical solution, a secondary off-angle is formed between the secondary cutting edge and the cutting feed direction, and the secondary off-angle is 2 ° to 5 °.
In the above technical scheme, further, the concave arc-shaped surface of the upper end surface on the side close to the secondary cutting edge is a rake surface, and an included angle between a tangent line of the rake surface and a horizontal plane is 8-12 °.
In the technical scheme, the secondary cutting edge inclines downwards along a horizontal plane from the outer side surface to the inner side surface, and an included angle between the secondary cutting edge and the horizontal plane is 3-5 degrees.
In the technical scheme, further, when the workpiece is axially cut and fed, the included angle between the transition edge and the cutting plane is 2-6 degrees; when the cutting feed is carried out along the radial direction of the workpiece, the included angle between the transition edge and the cutting plane is 2-4 degrees.
In the above technical solution, the cutter body is provided with two cutter heads, the cutter heads are symmetrically arranged at intervals on one side of the cutter body to form a cutting cutter head assembly, an arc-shaped inner cutting surface is arranged between the front end surface and the inner side surface of the cutter head, and an inner cutting edge is formed between the inner cutting surface and the upper end surface.
In the above technical scheme, further, two groups of cutting tool bit assemblies are symmetrically arranged on the tool body.
To above-mentioned boring and milling blade, the utility model discloses in still provide a titanium alloy work piece face of cylinder recess boring and milling cutter utensil, including cutter arbor, knife rest and above-mentioned blade, the knife rest sets up on the cutter arbor, and the blade setting is on the knife rest.
Further among the above-mentioned technical scheme, be provided with on the cutter arbor with knife rest matched with mounting hole, knife rest one end sets up in the mounting hole, lies in the fixed stopper that is provided with in mounting hole one side on the cutter arbor, and the stopper sets up in mounting hole one side along the mounting hole direction, is provided with adjusting screw on the stopper, adjusting screw stretches into in the mounting hole with knife rest one end threaded connection, the cutter arbor tip sets up the fixed orifices that is used for fixed knife rest, is provided with set screw in the fixed orifices.
Further, in the technical scheme, the cutter body is provided with a limiting groove and a connecting hole, one end of the cutter frame is provided with a limiting boss matched with the limiting groove and a positioning boss matched with a gap between two cutter heads on the same side of the blade, a connecting screw is arranged in the connecting hole, and the blade is fixedly installed on the cutter frame through the connecting screw.
The utility model discloses the beneficial effect who has:
1) the utility model provides a set up the main cutting edge that is used for the axial cutting on the boring blade and be used for radial cutting's vice cutting edge to carry out reasonable setting to the main declination of main cutting edge, make its main cutting edge and vice cutting edge have fine structural strength, when carrying out the boring and milling man-hour to the cylindrical recess of titanium alloy work piece, can provide better radial cutting power and axial cutting power simultaneously, when guaranteeing the surface machining precision, can realize the boring and milling back chipping of recess and handle, and the machining efficiency is improved, and the processing cost is reduced.
2) The two tool bits are arranged on the same side of the boring blade, and the two tool bits participate in boring and milling processing at the same time during processing, so that the boring and milling processing efficiency is further improved; meanwhile, the opposite sides of the two tool bits are respectively provided with the inner cutting edges for cutting the part of the workpiece positioned between the two tool bits, so that the integrated boring and milling cutting of the workpiece by utilizing the two tool bits can be realized, and the efficient and integrated forming boring and milling processing of the groove of the workpiece can be realized.
3) The utility model discloses set up two sets of cutting tool bit subassemblies on well boring and milling cutter piece, when a set of cutting tool bit subassembly takes place wearing and tearing, another group of cutting tool bit subassembly that changes that can be quick carries out the boring processing, need the time of tool setting again when having saved the change cutter, has improved holistic machining efficiency to the cost of blade has been reduced.
4) The utility model discloses knife rest among the boring and milling cutter sets up to adjustable structure, makes it can be according to different work piece sizes and different curved surface radius recesses, through adjusting the knife rest to the applicable boring and milling processing to different specification work pieces and different curved surface radius recesses, and it is convenient to adjust, has improved the performance and the commonality of cutter.
Drawings
Fig. 1 is a schematic view of the blade structure of the present invention.
Fig. 2 is a top view of the blade structure of the present invention.
Fig. 3 is a partial schematic view of fig. 2 at E.
Fig. 4 is a schematic cross-sectional view taken along line C-C in fig. 2.
Fig. 5 is a partial schematic view of fig. 4 at F.
Fig. 6 is a right side view of the blade structure of the present invention.
Fig. 7 is a partial schematic view of fig. 6 at D.
Fig. 8 is a schematic view of the structure of the cutting tool of the present invention.
Fig. 9 is a schematic sectional view taken along line a-a in fig. 8.
In the figure: 1. an insert, 101, a cutter body, 102, a cutter head, 201, an upper end face, 202, a lower end face, 203, an inner side face, 204, an outer side face, 205, a front end face, 206, a main cutting edge, 207, a secondary cutting edge, 208, a transition edge, 210, an inner cutting edge, 211, a rake face;
kr: principal declination angle, K' r: angle of deflection, V0Main rake angle, λ s, blade inclinationAngle, alpha0: axial main relief angle, beta0: a radial primary relief angle;
3. the tool comprises a tool bar, 4, a tool rest, 5, a mounting hole, 6, a limiting block, 7, an adjusting screw, 8, a fixing screw, 9, a limiting groove, 10, a connecting hole, 11, a limiting boss, 12, a positioning boss, 13 and a connecting screw.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
In this embodiment, referring to fig. 1 to 3, the boring and milling insert 1 includes a cutter body 101 and a cutter head 102 connected to the cutter body, where the cutter head 102 includes an upper end surface 201, a lower end surface 202, an inner side surface 203, an outer side surface 204, and a front end surface 205, where the upper end surface 201 of the cutter head is an inward concave arc surface, the outer side surface 204 is an inclined surface inclined toward the inner side surface from top to bottom, the front end surface 205 is an inclined surface inclined toward the cutter body from top to bottom, and a joint between the upper end surface 201 and the outer side surface 204 forms a main cutting edge 206; the main cutting edge is mainly used for axially cutting a workpiece; a secondary cutting edge 207 is formed at the junction between the upper end face 201 and the front end face 205, the secondary cutting edge being primarily for radial cutting of a workpiece; the junction between the front face 205 and the outer side face 204 forms a transition edge 208; when cutting feed is made in the axial direction of the workpiece, a main cutting edge 206 forms a main rake angle Kr with the cutting feed direction, and the main rake angle Kr is set to 91 ° to 93 °.
Aiming at the groove forming processing of a titanium alloy workpiece, when the main deflection angle is too small, although the strength of the tool bit point of the tool bit is high and the processing surface roughness is good, the radial force is large and the axial force is small during cutting; when the main deflection angle is too large, the axial force is large and the radial force is small; that is, when the main deflection angle is too large, the length of the tool edge is increased to increase the resistance in the axial cutting feed, and when the main deflection angle is too small, the point contact is formed between the tool point of the tool and the workpiece to increase the resistance in the radial cutting feed.
The main deflection angle of the main cutting edge of the blade tool bit is reasonably arranged, so that the main cutting edge and the auxiliary cutting edge have good structural strength, better radial cutting force and axial cutting force can be provided when the cylindrical groove of the titanium alloy workpiece is subjected to boring and milling processing, the boring and milling back chipping treatment of the groove can be realized while the surface processing precision is ensured, the processing efficiency is improved, and the processing cost is reduced.
Example two
This embodiment is another embodiment of the present invention, and referring to fig. 1 to 3, in this embodiment, when the cutting feed is made along the axial direction of the workpiece, a secondary offset angle K 'r is formed between the secondary cutting edge of the boring and milling cutter piece and the cutting feed direction, and the secondary offset angle K' r is set to 2 ° to 5 °. Through setting up the angle of vice cutting edge and blade processing direction of feed, can improve radial processing's machining efficiency, reduce the friction between vice cutting edge and the work piece machined surface simultaneously, guarantee the surface machining precision of work piece.
EXAMPLE III
In another embodiment of the present invention, referring to fig. 1-5, the concave arc surface of the upper end surface 201 of the insert head near the side of the secondary cutting edge is a rake surface 211, and the included angle between the tangent line of the rake surface 211 and the horizontal plane is 8-12 °. The included angle between the tangent line of the front tool face and the horizontal plane is the cutting main rake angle V of the blade0And the cutting efficiency of the blade is ensured and the safety of the cutter during processing is improved by setting the angle of the main rake angle, so that the sharpness of the blade during cutting and the strength of the cutting edge of the cutter head can be balanced.
Example four
This embodiment is another embodiment of the present invention, and referring to fig. 1-7, the minor cutting edge of the insert head in this embodiment is inclined downward from the outer side surface to the inner side surface along a horizontal plane, and the included angle between the minor cutting edge and the horizontal plane is 3 ° to 5 °. The included angle between the auxiliary cutting edge and the horizontal plane is the cutting edge inclination angle lambdas of the cutter head, and the cutter head can be guaranteed to have a good chip removal function during cutting machining through the angle of the cutting edge inclination angle.
EXAMPLE five
This example is another embodiment of the present invention, and referring to figures 1-7,in the insert of this embodiment, the included angle between the transition edge 208 and the cutting plane is the primary axial relief angle α when the insert is fed axially along the workpiece0Axial primary relief angle α in the present embodiment0Is 2-6 degrees. When the cutting feed is along the radial direction of the workpiece, the included angle between the transition edge 208 and the cutting plane is the radial main relief angle beta0In the present embodiment, the radial primary relief angle β0Is 2-4 degrees. By setting the angle between the transition edge and the cutting plane during axial feeding and radial feeding, the friction between the cutter head and the surface of a workpiece can be reduced when the blade is used for boring and milling, the cutting precision is ensured, and the abrasion to the blade is reduced.
EXAMPLE six
In another embodiment of the present invention, referring to fig. 1 to 7, in this embodiment, two cutting inserts 102 are disposed on the cutter body 101, the cutting inserts 102 are symmetrically disposed at an interval on one side of the cutter body to form a cutting insert assembly, an arc-shaped inner cutting surface is disposed between the front end surface 205 and the inner side surface 203 of the cutting insert, and an inner cutting edge 210 is formed between the inner cutting surface and the upper end surface 201.
Two cutter heads are arranged on the same side of the cutter body, and during machining, the two cutter heads participate in boring and milling machining at the same time, so that the boring and milling machining efficiency is further improved; meanwhile, the inner cutting edges are respectively arranged on the opposite sides of the two tool bits and are used for cutting a workpiece positioned between the two tool bits, so that the integrated boring and milling cutting of the workpiece by utilizing the two tool bits can be realized, and the efficient and integrated forming boring and milling processing of the groove of the workpiece can be realized.
EXAMPLE seven
In this embodiment, as shown in fig. 1 to 7, two sets of cutting bit assemblies are symmetrically disposed on the cutter body 1.
The boring and milling cutter is provided with the two groups of cutting tool bit assemblies, when one group of cutting tool bit assemblies are abraded, the other group of cutting tool bit assemblies can be quickly replaced to perform boring processing, the time of cutter resetting when a cutter is replaced is saved, the integral processing efficiency is improved, and the cost of the cutter is reduced.
In this embodiment, the bladeThe size is 16mm 15mm 8mm, the width of the cutter head is 2-5mm, and the distance between the two cutter heads is 2-5 mm. The blade is made of W18CR4V high-speed steel, the bending strength is 2.7-3.8GPa, and the impact toughness is 0.23-0.30MJ/m2The high-strength high-temperature-resistant alloy has high normal-temperature and high-temperature strength and hardness, and is suitable for processing high-strength heat-resistant steel, high-temperature alloy and titanium alloy workpieces.
The blade can be suitable for boring and milling cylindrical grooves with the diameter of 10mm-300mm, can realize one-time back chipping treatment on the grooves, and can achieve the machined surface roughness of 0.8 mu m.
To the boring and milling blade, the utility model also provides a titanium alloy work piece face of cylinder recess boring and milling cutter utensil, combines specific embodiment to carry out detailed description to this boring and milling cutter utensil below.
Example eight
As shown in fig. 8 and 9, the boring and milling cutter in the present embodiment includes a holder 3, a holder 4, and the insert 1 described in the above-described embodiments one to seven, the holder 4 being provided on the holder 3, and the insert 1 being provided on the holder 4.
Specifically, be provided with on cutter arbor 3 with knife rest 4 matched with mounting hole 5, 4 one ends of knife rest set up in mounting hole 5, mutually perpendicular sets up between knife rest and the cutter arbor, lie in the fixed stopper 6 that is provided with in 5 one sides of mounting hole on the cutter arbor 3, stopper 6 sets up in mounting hole one side along the mounting hole axis direction, is provided with adjusting screw 7 on the stopper 6, adjusting screw 7 stretch into in the mounting hole with 4 one end threaded connection of knife rest, 3 tip settings of cutter arbor are used for the fixed orifices of fixed knife rest, are provided with set screw 8 in the fixed orifices. In the embodiment, the cutter rest is arranged in a square-section mounting hole matched with the cutter bar, the end part of the cutter rest is respectively provided with a limiting block and an adjusting screw to limit the cutter rest to slide in the mounting hole, and the adjustment of the processing radius of the blade on the cutter rest can be realized by adjusting the adjusting screw; the side surface of the cutter rest is compressed by arranging the fixing screw, so that the cutter rest can be better fixed on the cutter bar.
A cutter body 101 of the blade is provided with a limiting groove 9 and a connecting hole 10, one end of the cutter frame 4 is provided with a limiting boss 11 matched with the limiting groove and a positioning boss 12 matched with a gap between two cutter heads positioned on the same side of the blade; by the arrangement of the structure, the blade and the tool rest are positioned by the mutual matching of the limiting groove, the limiting boss and the positioning boss with the clearance space between the two tool bits on the same side; a connecting screw 13 is provided in the connecting hole 10, and the insert 1 is fixedly mounted on the holder 4 by the connecting screw 13.
The tool rest in the boring and milling tool in the embodiment is set to be an adjustable structure, so that the tool rest can be adjusted according to different sizes of workpieces and grooves with different curved surface radiuses, the machining radius of the tool is adjusted, the tool rest is suitable for boring and milling of workpieces with different specifications and grooves with different curved surface radiuses, the tool rest is convenient to adjust, and the use performance and the universality of the tool are improved.
The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.
Claims (10)
1. The utility model provides a titanium alloy work piece cylinder face recess boring milling blade which characterized in that: the cutter comprises a cutter body and a cutter head connected to the cutter body, wherein the cutter head comprises an upper end face, a lower end face, an inner side face, an outer side face and a front end face, the upper end face is an inwards concave arc-shaped face, the outer side face is an inclined face inclined towards the inner side face from top to bottom, the front end face is an inclined face inclined towards the cutter body from top to bottom, a main cutting edge is formed between the upper end face and the outer side face, an auxiliary cutting edge is formed between the upper end face and the front end face, a transition edge is formed between the front end face and the outer side face, and when the cutter head feeds along the axial direction of a workpiece, a main deflection angle.
2. The titanium alloy workpiece cylindrical surface groove boring and milling blade of claim 1, wherein: an auxiliary deflection angle is formed between the auxiliary cutting edge and the cutting feeding direction, and the auxiliary deflection angle is 2-5 degrees.
3. The titanium alloy workpiece cylindrical surface groove boring and milling blade of claim 1, wherein: the concave arc-shaped surface of the upper end surface close to one side of the auxiliary cutting edge is a rake surface, and the included angle between the tangent line of the rake surface and the horizontal plane is 8-12 degrees.
4. The titanium alloy workpiece cylindrical surface groove boring and milling blade of claim 1, wherein: the auxiliary cutting edge inclines downwards along a horizontal plane from the outer side surface to the inner side surface, and an included angle between the auxiliary cutting edge and the horizontal plane is 3-5 degrees.
5. The titanium alloy workpiece cylindrical surface groove boring and milling blade of claim 1, wherein: when the workpiece is axially cut and fed, the included angle between the transition edge and the cutting plane is 2-6 degrees; when the cutting feed is carried out along the radial direction of the workpiece, the included angle between the transition edge and the cutting plane is 2-4 degrees.
6. The titanium alloy workpiece cylindrical surface groove boring and milling insert as claimed in any one of claims 1 to 5, wherein: the cutter is characterized in that two cutter heads are arranged on the cutter body, the cutter heads are symmetrically arranged on one side of the cutter body at intervals to form a cutting cutter head assembly, an arc-shaped inner cutting surface is arranged between the front end surface and the inner side surface of each cutter head, and an inner cutting edge is formed between the inner cutting surface and the upper end surface.
7. The titanium alloy workpiece cylindrical surface groove boring and milling blade of claim 6, wherein: two groups of cutting tool bit assemblies are symmetrically arranged on the cutter body.
8. The utility model provides a titanium alloy work piece cylinder face recess boring and milling cutter which characterized in that: comprising a holder, a holder and a blade according to any one of the preceding claims 1-7, the holder being arranged on the holder and the blade being arranged on the holder.
9. The titanium alloy workpiece cylindrical surface groove boring and milling cutter of claim 8, wherein: be provided with on the cutter arbor with knife rest matched with mounting hole, knife rest one end sets up in the mounting hole, lies in the fixed stopper that is provided with in mounting hole one side on the cutter arbor, and the stopper sets up in mounting hole one side along the mounting hole direction, is provided with adjusting screw on the stopper, adjusting screw stretch into in the mounting hole with knife rest one end threaded connection, the cutter arbor tip sets up the fixed orifices that is used for the stationary knife rest, is provided with set screw in the fixed orifices.
10. The titanium alloy workpiece cylindrical surface groove boring and milling tool of claim 9, wherein: the cutter body is provided with a limiting groove and a connecting hole, one end of the cutter frame is provided with a limiting boss matched with the limiting groove and a positioning boss matched with a gap between two cutter heads on the same side on the blade, a connecting screw is arranged in the connecting hole, and the blade is fixedly installed on the cutter frame through the connecting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779380.1U CN209867395U (en) | 2019-05-28 | 2019-05-28 | Titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920779380.1U CN209867395U (en) | 2019-05-28 | 2019-05-28 | Titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter |
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| CN209867395U true CN209867395U (en) | 2019-12-31 |
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| CN201920779380.1U Active CN209867395U (en) | 2019-05-28 | 2019-05-28 | Titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052628A (en) * | 2019-05-28 | 2019-07-26 | 四川工程职业技术学院 | A kind of titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter |
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2019
- 2019-05-28 CN CN201920779380.1U patent/CN209867395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052628A (en) * | 2019-05-28 | 2019-07-26 | 四川工程职业技术学院 | A kind of titanium alloy workpiece cylindrical surface groove boring and milling blade and cutter |
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