CN213410681U - Vertically-mounted threading tool - Google Patents
Vertically-mounted threading tool Download PDFInfo
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- CN213410681U CN213410681U CN202022323665.XU CN202022323665U CN213410681U CN 213410681 U CN213410681 U CN 213410681U CN 202022323665 U CN202022323665 U CN 202022323665U CN 213410681 U CN213410681 U CN 213410681U
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- cutting
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- cutter bar
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Abstract
The utility model discloses a vertical thread lathe tool relates to thread machining cutter field. Provides a vertical threading tool with a blade convenient to process. The vertically-mounted threading tool comprises a tool bar and a blade mounted on the tool bar, wherein the blade is provided with a mounting hole and at least two cutting parts, and the cutting parts are uniformly distributed on the circumference by taking the mounting hole as the center; the outer contour surfaces of the cutting parts are positioned on the same revolution surface, the axis of the revolution surface is the central line of the mounting hole, and the generatrix of the revolution surface is matched with the thread form; in the circumferential direction of the blade, one surface of the cutting part is a front surface of the cutting part, the other surface of the cutting part is a back surface of the cutting part, and the intersection line of the front surface of the cutting part and the outer contour surface is a cutting edge; the cutter bar is provided with two cutter bar positioning surfaces, the back surface of the cutting part of one cutting part is attached to one cutter bar positioning surface, and the front surface of the cutting part of the other cutting part is attached to the other cutter bar positioning surface.
Description
Technical Field
The utility model relates to a thread machining cutter field especially relates to a vertical dress formula threading tool.
Background
The vertically-mounted threading tool is a threading tool with a vertically-mounted blade and comprises a tool bar and a blade mounted on the tool bar. The shape of the cutting blade is generally triangular, the center of the cutting blade is provided with a mounting hole, and three corners are respectively provided with a cutting part, for example, a vertical-mounted indexable multipurpose threading tool disclosed in ZL 88219379.1.
The three cutting parts of the existing vertical-mounted thread turning blade need to be processed respectively, the processing technology is complex, the working procedures are multiple, and the position precision of a cutting edge and a tool nose relative to the center of the blade is not easy to guarantee.
The triangular threading inserts can be used in an indexable mode, namely after one cutting part is worn, the other two cutting parts are used by the rotatable inserts, and the service life of the inserts is prolonged. If the number of cutting portions can be further increased, the service life of the insert can be further prolonged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: provides a vertical threading tool with a blade convenient to process.
The technical scheme adopted for solving the problems is as follows: the vertically-mounted threading tool comprises a tool bar and a blade mounted on the tool bar, wherein the blade is provided with a mounting hole and at least two cutting parts, and the cutting parts are uniformly distributed on the circumference by taking the mounting hole as the center; the outer contour surfaces of the cutting parts are positioned on the same revolution surface, the axis of the revolution surface is the central line of the mounting hole, and the generatrix of the revolution surface is matched with the thread form; in the circumferential direction of the blade, one surface of the cutting part is a front surface of the cutting part, the other surface of the cutting part is a back surface of the cutting part, and the intersection line of the front surface of the cutting part and the outer contour surface is a cutting edge; the cutter bar is provided with two cutter bar positioning surfaces, the back surface of the cutting part of one cutting part is attached to one cutter bar positioning surface, and the front surface of the cutting part of the other cutting part is attached to the other cutter bar positioning surface.
Further, the method comprises the following steps: the number of the cutting parts is five, and one cutting part is arranged between the two cutting parts which are attached and positioned with the cutter bar positioning surface.
Further, the method comprises the following steps: the front surface and the back surface of the cutting part are both planes, the included angle between the front surface of the cutting part of one cutting part and the back surface of the cutting part of the adjacent cutting part is a, and a is more than or equal to 85 degrees and less than or equal to 95 degrees.
Further, the method comprises the following steps: the number of cutting parts is four, and two cutting parts that laminate the location with the cutter arbor locating surface are two adjacent cutting parts.
The utility model has the advantages that: 1. when the blade is machined, the circular structure shown in fig. 6 is machined, the mounting hole is machined, then the groove is machined on the circular structure, the part between the grooves is the cutting part, the process is simple, the number of processes is small, and the position accuracy of the cutting edge and the tool nose relative to the center of the blade (namely the mounting hole) is easy to ensure.
2. The number and shape of the grooves are changed to produce different numbers of cutting parts, so that the number of the cutting parts of the insert can be conveniently selected, and more cutting parts can be produced to prolong the service life of the insert.
Drawings
FIG. 1 is a front view of a vertically mounted threading tool;
FIG. 2 is a perspective view of a blade;
FIG. 3 is a front view of the blade;
FIG. 4 is a top view of the blade;
FIG. 5 is a schematic view of the axes and generatrices;
FIG. 6 is a schematic view of a circular configuration and surface of revolution;
FIG. 7 is a front view of the tool holder;
FIG. 8 is a front view of a stand-on threading tool having four cutting portions on the insert;
labeled as: the cutting insert comprises an insert 1, a mounting hole 11, a cutting part 12, an outer contour surface 121, a cutting part front surface 122, a cutting part back surface 123, a cutting edge 124, a groove 13, an axis 2, a generatrix 3, a curved surface of revolution 4, a tool shank 5, a tool shank positioning surface 51 and a threaded hole 52.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The vertically-mounted threading tool comprises a tool bar 5 and a blade 1 mounted on the tool bar 5, wherein the blade 1 is provided with a mounting hole 11 and at least two cutting parts 12, and the cutting parts 12 are uniformly distributed on the circumference by taking the mounting hole 11 as the center; the outer contour surface 121 of each cutting part 12 is positioned on the same revolution surface 4, the axis 2 of the revolution surface 4 is the central line of the mounting hole 11, and the generatrix 3 of the revolution surface 4 is matched with the thread form; in the circumferential direction of the insert 1, one surface of the cutting portion 12 is a cutting portion front surface 122, the other surface is a cutting portion back surface 123, and an intersection line of the cutting portion front surface 122 and the outer contour surface 121 is a cutting edge 124; the holder 5 has two holder positioning surfaces 51, and the cutting portion back surface 123 of one cutting portion 12 abuts against one holder positioning surface 51, and the cutting portion front surface 122 of the other cutting portion 12 abuts against the other holder positioning surface 51.
When the insert 1 is machined, the circular structure shown in fig. 6 is machined, the mounting hole 11 is machined, then the groove 13 is machined on the circular structure, the part between the two grooves 13 is the cutting part 12, the process is simple, the number of processes is small, and the position accuracy of the cutting edge 124 and the tool nose relative to the center of the insert (namely the mounting hole 11) is easy to ensure. The number and shape of the grooves 13 are changed to make different numbers of cutting parts 12, so that the utility model discloses the number of cutting parts 12 of the blade 1 can be conveniently selected to more cutting parts 12 can be made to prolong the service life of the blade 1.
The outer contour surface 121 refers to both side surfaces of the cutting portion 12 and a transition surface between both side surfaces. The curved surface of revolution 4 shown in fig. 6 can be obtained by rotating the bus bar 3 shown in fig. 5 around the axis 2; when the generatrix 3 matches the thread form, the shape of the surface of revolution 4 matches the thread form, and the cutting portion 12 and the cutting edge 124 also match the thread form. If the blade is used for machining a triangular thread, the generatrix 3 is two intersecting lines as shown in fig. 5; if the blade is used for processing trapezoidal threads or rectangular threads, the bus 3 is correspondingly
Shape or
And (4) shaping.
The shape of the insert 1 changes and the shank 5 should change accordingly, in particular the part of the shank 5 that mounts the insert 1. The utility model discloses cutter arbor 5 is as shown in fig. 7, and the part of installation blade 1 still sets up screw hole 52 except setting up cutter arbor locating surface 51, thereby should set up the concave part in order to avoid cutting portion 12 to avoid interfering with blade 1.
A fastener passes through the mounting hole 11 and engages the threaded hole 52 to compress the insert 1. The cutting portion back surface 123 is attached to the cutter bar positioning surface 51 to play a main circumferential positioning role, and the cutter 1 is prevented from rotating due to stress when the cutter 1 is used for cutting. Cutting portion front surface 122 and another cutter arbor locating surface 51 laminating play secondary location's effect for cutting portion back 123 and cutter arbor locating surface 51 laminating when guaranteeing blade 1 installation avoid blade 1 to rock. The cutting portion front surface 122 abuts the holder positioning surface 51 and thus the cutting edge 124 abuts the holder positioning surface 51, and this arrangement is not significantly adversely affected by forces acting during cutting to move the cutting edge 124 away from the holder positioning surface 51.
As previously mentioned, varying the number and shape of the recesses 13 results in a different number of cutting portions 12. The use time of the blade 1 can be prolonged if more cutting parts 12 are provided, but the cutting parts 12 are smaller and the strength is reduced; the small number of cutting portions 12 is advantageous for securing strength, but cannot extend the service life of the insert 1. The present invention preferably has five or four cutting portions 12.
When the number of the cutting portions 12 is five, it is preferable that one cutting portion 12 is provided between two cutting portions 12 where the holder positioning surface 51 is positioned in contact with each other. For convenience of machining, the cutting portion front surface 122 and the cutting portion rear surface 123 are preferably both flat surfaces. In order to facilitate chip removal during cutting and avoid influencing machining, the adjacent cutting parts 12 should keep a proper distance, the size of the groove 13 should be reasonably set, and preferably, the included angle between the front surface 122 of the cutting part of one cutting part 12 and the back surface 123 of the cutting part of the adjacent cutting part 12 is a, and a is more than or equal to 85 degrees and less than or equal to 95 degrees.
When the number of the cutting portions 12 is four, it is preferable that two cutting portions 12 positioned in contact with the holder positioning surface 51 are adjacent to each other. When the number of the cutting portions 12 is four, the interval between the cutting portions 12 is long, and one cutting portion 12 does not affect the other cutting portion 12.
The cutting portion front surface 122 may also be a concave surface to sharpen the cutting edge 124.
Claims (4)
1. The vertically-mounted threading tool comprises a tool bar (5) and a blade (1) mounted on the tool bar (5), wherein the blade (1) is provided with a mounting hole (11) and at least two cutting parts (12), and the cutting parts (12) are uniformly distributed on the circumference by taking the mounting hole (11) as the center; the method is characterized in that: the outer contour surface (121) of each cutting part (12) is positioned on the same revolution surface (4), the axis (2) of the revolution surface (4) is the central line of the mounting hole (11), and the generatrix (3) of the revolution surface (4) is matched with the thread form; in the circumferential direction of the blade (1), one surface of the cutting part (12) is a cutting part front surface (122), the other surface is a cutting part back surface (123), and the intersection line of the cutting part front surface (122) and the outer contour surface (121) is a cutting edge (124); the cutter bar (5) is provided with two cutter bar positioning surfaces (51), the cutting part back surface (123) of one cutting part (12) is jointed with one cutter bar positioning surface (51), and the cutting part front surface (122) of the other cutting part (12) is jointed with the other cutter bar positioning surface (51).
2. A vertically mounted threading tool according to claim 1, wherein: the number of the cutting parts (12) is five, and one cutting part (12) is arranged between two cutting parts (12) which are positioned in contact with the cutter bar positioning surface (51).
3. A vertically mounted threading tool according to claim 2, wherein: the cutting part front surface (122) and the cutting part back surface (123) are both planes, the included angle between the cutting part front surface (122) of one cutting part (12) and the cutting part back surface (123) of the adjacent cutting part (12) is a, and a is more than or equal to 85 degrees and less than or equal to 95 degrees.
4. A vertically mounted threading tool according to claim 1, wherein: the number of the cutting parts (12) is four, and the two cutting parts (12) which are positioned in contact with the cutter bar positioning surface (51) are two adjacent cutting parts (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323665.XU CN213410681U (en) | 2020-10-19 | 2020-10-19 | Vertically-mounted threading tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323665.XU CN213410681U (en) | 2020-10-19 | 2020-10-19 | Vertically-mounted threading tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213410681U true CN213410681U (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022323665.XU Active CN213410681U (en) | 2020-10-19 | 2020-10-19 | Vertically-mounted threading tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213410681U (en) |
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2020
- 2020-10-19 CN CN202022323665.XU patent/CN213410681U/en active Active
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