CN204912800U - Machine presss from both sides formula threading tool - Google Patents
Machine presss from both sides formula threading tool Download PDFInfo
- Publication number
- CN204912800U CN204912800U CN201520646254.0U CN201520646254U CN204912800U CN 204912800 U CN204912800 U CN 204912800U CN 201520646254 U CN201520646254 U CN 201520646254U CN 204912800 U CN204912800 U CN 204912800U
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- China
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- cutter head
- bit body
- installing hole
- connection block
- threading tool
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Abstract
The utility model discloses a machine presss from both sides formula threading tool, it includes handle of a knife (1) and tool bit body (2), is equipped with tool bit connecting seat (3) that are used for installing tool bit body (2) on handle of a knife (1), its characterized in that: tool bit body (2) are the cylinder column structure, and a plurality of cutting planes in tip edge of tool bit body (2) cut and form tool bit (4), being equipped with on tool bit connecting seat (3) and supplying tool bit body (2) male mounting hole (3.1), tool bit body (2) sliding fit and outside cutting edge (4.1) of tool bit (4) dew arranges tool bit connecting seat (3) in, is equipped with on tool bit connecting seat (3) and is used for restricting tool bit body (2) fastening device for tool bit connecting seat (3) motion in mounting hole (3.1). The utility model provides a cutting machine presss from both sides formula threading tool that the amount of feeding is big, the chasing speed is fast.
Description
Technical field
The utility model relates to the technical field of threading tool, specifically a kind of clip type threading tool.
Background technology
Threading tool belongs to the one of cutting tool, is a kind of cutter for carrying out screw chasing processing on turnery processing lathe.And clip type threading tool is application the most a kind of threading tool in current industry, its primary structure comprises knife bar and blade two parts, and knife bar is provided with blade mount pad, and blade to be fitted on blade mount pad and fixed by screw.Therefore, this existing clip type threading tool is in turning process, the cutting reaction force that its blade is subject to will pass to trip bolt, and that is, screw will have influence on the higher limit of the cutting reaction force that blade can bear for the thrust of blade.And the screw number that blade can be installed and size are exactly subject to the restriction of the size of blade own, therefore, the cutting reaction force that blade can bear is less, and this cutting amount of feeding that also just directly results in existing clip type threading tool is little slow with cutting speed.In addition, because the blade on existing clip type threading tool is in the form of sheets, and also need to arrange some screw mounting holes on sheet blade, therefore the intensity of blade is less, and this also further limit and cuts the amount of feeding and cutting speed.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of and cut the clip type threading tool that the amount of feeding is large, cutting speed is fast.
Technical solution adopted in the utility model is: provide a kind of clip type threading tool, it comprises handle of a knife and bit body, handle of a knife is provided with the cutter head Connection Block for installing bit body, described bit body is bar shape structure, the end of bit body forms cutter head along multiple cut surface cutting, described cutter head Connection Block is provided with the installing hole inserted for bit body, bit body is slidably fitted in installing hole, and the blade of cutter head is placed on outside cutter head Connection Block, cutter head Connection Block is provided with the retention mechanism moved relative to cutter head Connection Block for limiting bit body.By the bit body of bar shape structure and the mode of cutter head Connection Block grafting, provide a kind of more existing cultrate clip type threading tool of clip type threading tool of brand-new installation way, the intensity of cutter is large, and the cutting amount of feeding that therefore can bear is large, and cutting speed can be faster.
Described retention mechanism comprises the some lock-screws be located on cutter head Connection Block, and lock-screw and cutter head Connection Block threaded engagement, one end of described lock-screw extends in installing hole, and is pressed on the lateral wall of bit body.Tool bit part need not be holed, and can ensure the globality of cutter head, and its intensity and dimensional accuracy are also better.
Described cutter head Connection Block is provided with spacing hole, and insert a gag lever post in spacing hole, gag lever post is crossing with the hole inwall of installing hole, and the confined planes that the gag lever post part that is positioned at installing hole and bit body are placed in installing hole leans.Can well bit body be supported by gag lever post, play the restriction of the spacing and circumferential rotation of axial displacement.
Described cutter head is provided with rake face and move back bits inclined-plane, and rake face and moving back between bits inclined-plane is connected by arc surface transition.
The two ends of described bit body are provided with cutter head all separately.The structure of Double-cutter head can be that the service life of a bit body doubles, and improves cutter utilization rate.
Described cutter head Connection Block is provided with spacing hole, a gag lever post is inserted in spacing hole, gag lever post is crossing with the hole inwall of installing hole, and the gag lever post part that is positioned at installing hole be placed in moving back on the cutter head of installing hole and consider inclined-plane to be worth doing or arc surface leans, be placed between the blade tip of the cutter head in installing hole and installing hole bottom surface when moving back bits inclined-plane or arc surface and gag lever post and leaning and leave gap.Rely on idle cutter head moving back bits inclined-plane or arc surface as confined planes and gag lever post against, need not be extra on cutter head, confined planes is set, avoid the integrally-built destruction of cutter head, the intensity of increase cutter head.
Described bit body is cylindrical-shaped structure.
Be provided with supporting lug below back of the body knife face cutter head Connection Block being positioned at cutter head, the side that supporting lug closely carries on the back knife face forms the supporting surface fitted with back of the body knife face.Dew can be made to put the bending strength of the tool bit part outside cutter head Connection Block by supporting surface larger.
Handle of a knife is provided with the withdrawing hole be connected with the bottom of installing hole.Owing to being slidably matched between installing hole and bit body, its gap is less, when there being cutting coolant to infiltrate gap, can make to form closed chamber in installing hole, and now need to change bit body, then normally can cannot take out due to negative pressure, driving lever not only can be made to stretch in installing hole by withdrawing hole and skid off for stirring bit body, and eliminate vacuum effect, be conducive to bit body and normally take away.In addition, precision due to installing hole directly has influence on stability and the dimensional accuracy of cutter head installation, therefore, above-mentioned withdrawing hole can also use as chip-removal hole, and the Geometrical Tolerance Principle namely due to installing hole is higher, can get rid of chip in time by withdrawing hole in the process of processing mounting holes, be convenient to the fine finishining of installing hole, and in handle of a knife Long-Time Service process, avoid dust, greasy dirt etc. to deposit in installing hole, be conducive to the clean of installing hole by withdrawing hole.Withdrawing hole simultaneously described in cutter use procedure can also as peep hole, and whether range estimation cutter head is installed location and put in place.
After adopting above structure, a kind of clip type threading tool of the present utility model compared with prior art has the following advantages: first, installing hole grafting on the bit body of bar shape and cutter head Connection Block, the intensity of cutter head can be improved, thus the intensity of the sheet cutter head making the cutter head of onesize size more conventional is larger, the amount of feeding that therefore can bear is large, cutting speed can be faster, secondly, bit body does not arrange installing hole, therefore compared with the powerful height of blade self structure of sheet, not flexible damage, finally, the hole inwall of gag lever post and installing hole is mainly leaned in the location of cutter head, and lock-screw just plays the effect of pretightning force, therefore, compared with the lock-screw for bearing most of reaction force of prior art, precision is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of clip type threading tool of the present utility model.
Fig. 2 is the exploded perspective view after a kind of clip type threading tool of the present utility model removes lock-screw and gag lever post.
Fig. 3 be Fig. 1 partly cut open schematic diagram.
Fig. 4 be Fig. 2 partly cut open schematic diagram.
Wherein, 1, handle of a knife, 1.1, withdrawing hole, 2, bit body, 3, cutter head Connection Block, 3.1, installing hole, 3.2, spacing hole, 4, cutter head, 4.1, blade, 4.2, rake face, 4.3, move back bits inclined-plane, 4.4, arc surface, 4.5, blade tip, 4.6, back of the body knife face, 5, lock-screw, 6, gag lever post, 7, supporting lug, 7.1, supporting surface;
M refers to the angle between the rake face of cutter head and bit body axis, and N refers to the angle between the horizontal plane at the axis of installing hole and the place, bottom surface of cutter head Connection Block.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, the utility model provides a kind of clip type threading tool, it comprises handle of a knife 1 and bit body 2, handle of a knife 1 is provided with the cutter head Connection Block 3 for installing bit body 2, described bit body 2 is bar shape structure, the end of bit body 2 forms cutter head 4 along multiple cut surface cutting, described cutter head Connection Block 3 is provided with the installing hole 3.1 inserted for bit body 2, bit body 2 is slidably fitted in installing hole 3.1, and the blade 4.1 of cutter head 4 is placed on outside cutter head Connection Block 3, cutter head Connection Block 3 is provided with the retention mechanism moved relative to cutter head Connection Block 3 for limiting bit body 2.
Above-mentioned bar shape structure refers to the general designation of solid geometry figure comprising cylinder, centrum, stage body, and this concept at geometric figure in a upper not total general designation, but the object of bit body described in the utility model 2 structural design is convenient to bit body 2 be inserted in installing hole and utilize the spacing bit body 2 of the hole inwall of installing hole.Therefore, applicant only makes a general reference the whole of the bit body 2 of the solid geometry figure that can be placed in installing hole by bar shape structure.Certainly cylindroid on this basis or other different in nature column structures in protection domain of the present utility model, just ought to not enumerate this applicant.
Described retention mechanism comprises the some lock-screws 5 be located on cutter head Connection Block 3, and lock-screw 5 and cutter head Connection Block 3 threaded engagement, one end of described lock-screw 5 extends in installing hole 3.1, and is pressed on the lateral wall of bit body 2.Screwing namely by lock-screw 5, the lateral wall ordering about one end extruding bit body 2 of lock-screw 5 makes bit body 2 and installing hole inwall be converted into tight fit from being slidably matched.
Described cutter head Connection Block 3 is provided with spacing hole 3.2, a gag lever post 6 is inserted in spacing hole 3.2, gag lever post 6 is crossing with the hole inwall of installing hole 3.1, and the confined planes that gag lever post 6 part that is positioned at installing hole 3.1 and bit body 2 are placed on installing hole 3.1 one end leans.The initial stage that above-mentioned gag lever post 6 can load installing hole 3.1 at bit body 2 carries out axial location, and rely on gag lever post 6 to match with confined planes, carry out circumferential position centering, then fastening by lock-screw 5, carry out in working angles at cutter head 4, the a part of axial action along bit body 1 of reaction force of cutting force, make bit body 2 be pressed on gag lever post 6, namely gag lever post 6 plays the object of axial limiting.And the axial force increased can order about confined planes and is pressed on gag lever post 6, thus play circumferential position-limiting action, this greatly reduces the active force of the axial and circumferential of lock-screw 5, the major part that simultaneously cutting force acts on the radial load on cutter head 4 is offset by installing hole 3.1 inwall, therefore the radial forces that is subject to of lock-screw 5 is also less, therefore, lock-screw 5 can be made only to be to provide the effect of a pretightning force by arranging gag lever post 6, and axial, the circumferential rotation of fraction and the support force of radial direction are provided.
Described cutter head 4 is provided with rake face 4.2 and moves back bits inclined-plane 4.3, and rake face 4.2 and moving back between bits inclined-plane 4.3 is connected by arc surface 4.4 transition.
Blade 4.1 is placed on the plane-parallel at the rake face corresponding to cutter head 4 4.2 outside cutter head Connection Block 3 and handle of a knife 1 axis place.When the plane-parallel of the rake face 4.2 on working position with handle of a knife 1 axis place, effectively can ensure in its machining screw process that the cross section of screw thread is corresponding with the outline projection perpendicular to rake face 4.2, form of thread machining accuracy can be controlled by projection rake face 4.2 thus.Namely as shown in Figure 3, be in the angle N alternate interior angle each other between angle M between the rake face 4.2 of the cutter head 4 on working position and the axis of bit body 2 and the horizontal plane at the axis of installing hole 3.1 and the place, bottom surface of cutter head Connection Block 3.Certainly, certainly exist certain build-up tolerance because bit body 2 inserts in installing hole 3.1, therefore, above-mentioned angle M and angle N each other alternate interior angle refers to can regard as alternate interior angle within the scope of effective tolerance.Wherein, the angle of angle M and angle N is preferably 15 °, the cutting reaction force that rake face 4.2 is subject to can be made to form component by the axis of bit body 2 thus reduce the radial load that installing hole 3.1 sidewall is subject to, improve cutter life.
The two ends of described bit body 2 are provided with cutter head 4 all separately.In addition, as can be seen from accompanying drawing, the cutter head 4 at described bit body 2 two ends is identical, and the rake face of cutter head 4 is positioned at the same side of bit body 2, certainly make improvement on this basis, arrange the cutter head 4 of concentric reducer and the cutter head at two ends towards in a certain angle be also feasible.Just the spacing hole of described correspondence and the axis of gag lever post carry out accommodation.
Described cutter head Connection Block 3 is provided with spacing hole 3.2, a gag lever post 6 is inserted in spacing hole 3.2, gag lever post 6 is crossing with the hole inwall of installing hole 3.1, and gag lever post 6 part that is positioned at installing hole 3.1 be placed in moving back on the cutter head 4 of installing hole 3.1 and consider inclined-plane 4.3 to be worth doing or arc surface 4.4 leans, be placed between the blade tip 4.5 of the cutter head 4 in installing hole 3.1 and installing hole 3.1 bottom surface when moving back bits inclined-plane 4.3 or arc surface 4.4 and gag lever post 6 and leaning and leave gap.Namely be placed in and the cutter head 4 in installing hole 3.1 moving back bits inclined-plane 4.3 or arc surface 4.4 as the confined planes leant with gag lever post 6.
Described bit body 2 is cylindrical-shaped structure.
Be provided with supporting lug 7 below the back of the body knife face 4.6 cutter head Connection Block 3 being positioned at cutter head 4, the side of the near back of the body knife face 4.6 of supporting lug 7 forms the supporting surface 7.1 fitted with back of the body knife face 4.6.Described cutter head 4 refers to that blade 4.1 is placed on the cutter head 4 outside cutter head Connection Block 3.
Handle of a knife 1 is provided with the withdrawing hole 1.1 be connected with the bottom of installing hole 3.1.
Its operation principle is, bit body 2 is inserted along installing hole 3.1, and the arc surface 4.4 on the cutter head that leaves unused is leant with gag lever post 6, now the axial and circumferential of bit body 2 all load and put in place, screw lock-screw 5 subsequently, force bit body 2 and the hole inwall of installing hole 3.1 last being clamped on lathe by the handle of a knife of installation that be fastened to carry out thread turning.
Be described with regard to the utility model preferred embodiment above, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change, and all various changes done in the protection domain of the utility model demand for independence are all in protection domain of the present utility model.
Claims (9)
1. a clip type threading tool, it comprises handle of a knife (1) and bit body (2), handle of a knife (1) is provided with the cutter head Connection Block (3) for installing bit body (2), it is characterized in that: described bit body (2) is bar shape structure, the end of bit body (2) forms cutter head (4) along multiple cut surface cutting, described cutter head Connection Block (3) is provided with the installing hole (3.1) inserted for bit body (2), bit body (2) is slidably fitted in installing hole (3.1), and the blade (4.1) of cutter head (4) is placed on cutter head Connection Block (3) outward, cutter head Connection Block (3) is provided with the retention mechanism moved relative to cutter head Connection Block (3) for limiting bit body (2).
2. a kind of clip type threading tool according to claim 1, it is characterized in that: described retention mechanism comprises the some lock-screws (5) be located on cutter head Connection Block (3), lock-screw (5) and cutter head Connection Block (3) threaded engagement, one end of described lock-screw (5) extends in installing hole (3.1), and is pressed on the lateral wall of bit body (2).
3. a kind of clip type threading tool according to claim 2, it is characterized in that: described cutter head Connection Block (3) is provided with spacing hole (3.2), a gag lever post (6) is inserted in spacing hole (3.2), gag lever post (6) is crossing with the hole inwall of installing hole (3.1), and the confined planes that gag lever post (6) part that is positioned at installing hole (3.1) and bit body (2) are placed in installing hole (3.1) leans.
4. a kind of clip type threading tool according to claim 1, it is characterized in that: described cutter head (4) is provided with rake face (4.2) and moves back bits inclined-plane (4.3), rake face (4.2) and moving back between bits inclined-plane (4.3) by arc surface (4.4) transition connection.
5. a kind of clip type threading tool according to claim 4, is characterized in that: the two ends of described bit body (2) are provided with cutter head (4) all separately.
6. a kind of clip type threading tool according to claim 5, it is characterized in that: described cutter head Connection Block (3) is provided with spacing hole (3.2), a gag lever post (6) is inserted in spacing hole (3.2), gag lever post (6) is crossing with the hole inwall of installing hole (3.1), and gag lever post (6) part that is positioned at installing hole (3.1) be placed in moving back on the cutter head (4) of installing hole (3.1) and consider inclined-plane (4.3) to be worth doing or arc surface (4.4) leans, be placed between the blade tip (4.5) of the cutter head (4) in installing hole (3.1) and installing hole (3.1) bottom surface when moving back bits inclined-plane (4.3) or arc surface (4.4) and gag lever post (6) and leaning and leave gap.
7. a kind of clip type threading tool according to claim 1, is characterized in that: described bit body (2) is cylindrical-shaped structure.
8. a kind of clip type threading tool according to claim 1, it is characterized in that: back of the body knife face (4.6) below cutter head Connection Block (3) being positioned at cutter head (4) is provided with supporting lug (7), the side that supporting lug (7) closely carries on the back knife face (4.6) forms the supporting surface (7.1) fitted with back of the body knife face (4.6).
9. a kind of clip type threading tool according to claim 1, is characterized in that: handle of a knife (1) is provided with the withdrawing hole (1.1) be connected with the bottom of installing hole (3.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646254.0U CN204912800U (en) | 2015-08-25 | 2015-08-25 | Machine presss from both sides formula threading tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646254.0U CN204912800U (en) | 2015-08-25 | 2015-08-25 | Machine presss from both sides formula threading tool |
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| Publication Number | Publication Date |
|---|---|
| CN204912800U true CN204912800U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520646254.0U Active CN204912800U (en) | 2015-08-25 | 2015-08-25 | Machine presss from both sides formula threading tool |
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| CN (1) | CN204912800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127460A (en) * | 2015-08-25 | 2015-12-09 | 宁波川景誉机械科技发展有限公司 | Mechanical clamp type threading tool |
-
2015
- 2015-08-25 CN CN201520646254.0U patent/CN204912800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127460A (en) * | 2015-08-25 | 2015-12-09 | 宁波川景誉机械科技发展有限公司 | Mechanical clamp type threading tool |
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