CN215315764U - Double-edge pressing plate type adjustable crankshaft groove cutter - Google Patents
Double-edge pressing plate type adjustable crankshaft groove cutter Download PDFInfo
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- CN215315764U CN215315764U CN202022717498.7U CN202022717498U CN215315764U CN 215315764 U CN215315764 U CN 215315764U CN 202022717498 U CN202022717498 U CN 202022717498U CN 215315764 U CN215315764 U CN 215315764U
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Abstract
The utility model discloses a double-edge pressing plate type adjustable crankshaft grooving cutter, which comprises a cutter seat and a pair of blades arranged on the cutter seat, and further comprises: the clamp plate and slide wedge adjusting block. The pressing plate is detachably connected with the top surface of the tool apron, the head of the pressing plate is pressed at the top end of the blade, and the bottom surface of the tail of the pressing plate is contacted with the top surface of the tool apron through a spherical protrusion; the inclined wedge adjusting block is detachably arranged in a groove between the pair of blades on the tool apron, the horizontal section of the inclined wedge adjusting block is trapezoidal, and the inclined wedge adjusting block is arranged as follows: the distance between the blade and the bottom of the groove is adjusted to adjust the clamping force applied to the blade.
Description
Technical Field
The utility model relates to a cutter, in particular to an adjustable crankshaft grooving cutter.
Background
The conventional EA888 crankshaft needs to be processed at the main shaft diameter so as to obtain a groove. One of the roles of the trench is the process requirements: the groove can be used as an overtravel groove of the grinding wheel when the cylindrical surface of the main journal is ground; another role of the trench is the design requirement: the arc-shaped groove avoids stress concentration, and meanwhile, the surface of the groove generates compressive stress in the rolling and straightening process of AF70 process, so that the fatigue strength of the crankshaft can be effectively improved. Therefore, the groove machining is an important link of the crankshaft machining.
In the center of the prior art, the original grooving tool is usually designed by adopting an upper staggered tooth and a lower staggered tooth due to the limitation of the tool structure and the groove width size of a product. Due to the design, the left groove and the right groove of the groove cutter need to be respectively machined in the machining process of the crankshaft, the machining process needs to be carried out twice, the dislocation beat of the cutter tower is long (one shaft diameter groove needs 4.2 seconds), and meanwhile, the AF20 machining beat is a bottleneck process of three lines of the crankshaft.
At present, all tool manufacturers all around the world adopt the scheme that the grooves on the left side and the right side of the crankshaft main shaft diameter are respectively machined by controlling the motion tracks of a tool turret through an NC program by adopting a structure that the upper side and the lower side of a blade are staggered and the side surface of a screw clamps the blade.
The prior art solution described above still suffers from numerous drawbacks. In the prior art, the scheme can ensure that the machine tool needs to be quickly reversed and positioned within a short distance in the machining process, so that the mechanical impact on equipment is large. In addition, this processing scheme production efficiency is lower and the tool changing size is out of tolerance, and the blade holder generally adopts the screw to press from both sides tightly, and the clamp force is less, appears the centre gripping unstably easily in the course of working, causes the blade crazing line to appear for there is the line of shaking crankshaft groove bottom.
Based on the defects in the prior art, the utility model is expected to obtain the double-blade pressing plate type adjustable crankshaft grooving cutter, the production efficiency of the double-blade pressing plate type adjustable crankshaft grooving cutter is doubled compared with that of the cutter in the prior art, the production efficiency is higher, the groove width is adjustable, the popularization prospect and the application value are good, and the problem that the clamping force is insufficient due to the fact that the thread screwing length of the existing cutter is too short can be effectively solved.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to provide a double-blade pressing plate type adjustable crankshaft groove cutter, which can simultaneously process grooves on the left side and the right side of a crankshaft, has higher production efficiency and adjustable groove width, and has good popularization prospect and application value.
In addition, the double-edge pressing plate type adjustable crankshaft groove cutter solves the problem that the clamping force is insufficient due to too short thread screwing length of a cutter in the prior art by adopting a floating type pressing plate clamping mode. Meanwhile, the cutter mounting efficiency of the pressing plate type clamping mode is superior to that of a groove cutter clamped by screws with staggered teeth up and down in the prior art.
In order to achieve the above object, the present invention provides a double-edged pressing plate type adjustable crankshaft grooving tool, which includes a tool apron and a pair of blades arranged on the tool apron, and further includes:
the pressing plate is detachably connected with the top surface of the tool apron, the head of the pressing plate is pressed at the top end of the blade, and the bottom surface of the tail of the pressing plate is contacted with the top surface of the tool apron through a spherical protrusion;
the inclined wedge adjusting block is detachably arranged in a groove between the pair of blades on the cutter holder, the horizontal section of the inclined wedge adjusting block is trapezoidal, and the inclined wedge adjusting block is arranged as follows: the distance between the blade and the bottom of the groove is adjusted to adjust the clamping force applied to the blade.
It should be noted that, due to the limitation of the width of the two grooves of the EA888 crankshaft, if the inserts are arranged on the same plane, the screw engagement length in the screw side clamping manner in the prior art is too short to meet the process requirements of tool assembly. Therefore, in the prior art, a structure with staggered teeth up and down has to be adopted. The inventor designs a floating type pressing plate clamping method, thereby effectively solving the problem that the clamping force is insufficient due to too short screwing length of the cutter thread in the prior art.
In addition, because the cutter seat in the prior art cannot meet the requirement of width dimensions of two grooves of the EA888 crankshaft due to the manufacturing and installation progress of the cutter blade, the grooves on the left side and the right side of the main shaft diameter of the crankshaft must be machined separately, and the dimension of the cutter seat is adjusted by modifying a machining program through a machine tool track. In the utility model, a wedge compensation mode is adopted, and the adjustment of the width of the groove can be realized by adjusting the distance between the wedge adjusting block and the groove bottom, thereby solving the problem that the processing width of the groove cutter in the prior art can not be adjusted.
Correspondingly, the structure of the double-edge pressing plate type adjustable crankshaft groove cutter can ensure that the measurement accuracy of the cutter setting gauge is greatly improved, so that the machining size of a cutter changing first piece is qualified.
Further, in the double-edged press plate type adjustable crankshaft grooving cutter, the press plate is in a T shape, and two wings of a T-shaped head part of the press plate are respectively pressed on the top ends of the pair of blades.
Further, in the double-edged pressing plate type adjustable crankshaft fluted cutter of the utility model, the pressing plate is detachably connected with the top surface of the cutter holder through a locking screw.
Further, in the double-edged press plate type adjustable crankshaft grooving cutter of the present invention, the wedge adjustment block is detachably provided in a groove between the pair of blades on the cutter holder by an adjustment screw.
Further, in the double-edged press plate type adjustable crankshaft grooving cutter, the cutter holder is provided with a clearance groove, the two sides of the clearance groove are provided with clamping arms for clamping the blade, and the wedge adjusting block adjusts the relative opening degree of the two clamping arms by adjusting the distance between the wedge adjusting block and the groove bottom of the groove, so that the clamping force applied by the clamping arms to the blade is adjusted.
Further, in the double-edged press plate type adjustable crankshaft grooving cutter of the present invention, the cutting insert is provided on the cutter holder by a lateral positioning surface on the cutter holder, and the lateral positioning surface is inclined upward from the inside to the outside.
Further, in the double-edged press plate type adjustable crankshaft groove cutter, an included angle between the transverse positioning surface and the horizontal plane is 15-25 degrees.
Further, in the double-edged press plate type adjustable crankshaft groove cutter, an included angle between the transverse positioning surface and the horizontal plane is 20 degrees.
Compared with the prior art, the double-edge pressing plate type adjustable crankshaft groove cutter has the advantages and beneficial effects as follows:
the double-edge pressing plate type adjustable crankshaft groove cutter can be used for simultaneously machining grooves on the left side and the right side of a crankshaft, is high in production efficiency, adjustable in groove width and good in popularization prospect and application value.
In addition, the double-edge pressing plate type adjustable crankshaft groove cutter solves the problem that the clamping force is insufficient due to too short thread screwing length of a cutter in the prior art by adopting a floating type pressing plate clamping mode. Meanwhile, the cutter mounting efficiency of the pressing plate type clamping mode is superior to that of a groove cutter clamped by screws with staggered teeth up and down in the prior art.
Drawings
Fig. 1 is a schematic structural diagram of a double-edged platen type adjustable crankshaft grooving tool according to an embodiment of the present invention from a viewing angle.
Fig. 2 is a schematic structural diagram of a double-edged platen-type adjustable crankshaft grooving tool according to another viewing angle in one embodiment of the present invention.
Fig. 3 schematically shows a schematic view of a crankshaft machined using a double-edged platen-type adjustable crankshaft grooving tool according to the present invention.
Fig. 4 is a schematic side view of the structure of the double-edged platen type adjustable crankshaft grooving cutter according to an embodiment of the present invention.
FIG. 5 schematically illustrates a top view of a dual-edged platen-type adjustable crankshaft grooving tool of the present invention with the platen removed, in one embodiment.
Fig. 6 schematically illustrates a front view of a dual-edged platen-type adjustable crankshaft grooving tool in accordance with an embodiment of the present invention.
Detailed Description
The double-edged press plate type adjustable crankshaft grooving tool according to the present invention will be further explained and explained with reference to the drawings and the specific embodiments of the present specification, however, the explanation and explanation do not unduly limit the technical solution of the present invention.
Fig. 1 is a schematic structural diagram of a double-edged platen type adjustable crankshaft grooving tool according to an embodiment of the present invention from a viewing angle.
Fig. 2 is a schematic structural diagram of a double-edged platen-type adjustable crankshaft grooving tool according to another viewing angle in one embodiment of the present invention.
As shown in fig. 1 and 2, in the present embodiment, the double-edged platen type adjustable crankshaft grooving tool according to the present invention includes: the cutting device comprises a blade 1, a pressure plate 2, a tool apron 4 and a wedge adjusting block 5.
In the present invention, the insert 1 is provided in a pair, and the pair of inserts 1 are both provided on the holder 4. The pressing plate 2 is detachably connected with the top surface of the cutter holder 4, the head of the pressing plate 2 is pressed at the top end of the cutter blade 1, and the bottom surface of the tail of the pressing plate is contacted with the top surface of the cutter holder 4 through a spherical protrusion. The wedge adjustment block 5 is detachably disposed on the tool holder 4 in the groove 11 between the pair of blades 1.
In the present embodiment, the pressing plate 2 of the present invention is T-shaped, and both wings of the T-shaped head portion are respectively pressed against the tips of the pair of blades 1.
Further, it should be noted that, in the present embodiment, the double-edged platen-type adjustable crankshaft grooving tool according to the present invention further includes: a locking screw 3 and an adjusting screw 6. Wherein, the pressure plate 2 can be detachably connected with the top surface of the tool apron 4 through a locking screw 3; the wedge adjustment block 5 is detachably provided in the pocket 11 between the pair of insert pieces 1 on the holder 4 by an adjustment screw 6.
Fig. 3 schematically shows a schematic view of a crankshaft machined using a double-edged platen-type adjustable crankshaft grooving tool according to the present invention.
As shown in fig. 3, when the double-edged press plate type adjustable crankshaft groove cutter is used for machining a crankshaft, the pair of blades 1 arranged on the cutter holder 4 can simultaneously machine grooves on the left side and the right side of the crankshaft with the same main shaft diameter, and the grooves can be machined at the same time only by changing the blades once.
Fig. 4 is a schematic side view of the structure of the double-edged platen type adjustable crankshaft grooving cutter according to an embodiment of the present invention.
As shown in fig. 4, with reference to fig. 1 and 2, the double-edged platen-type adjustable crankshaft grooving tool of the present invention employs a floating platen 2 for clamping.
In the utility model, the head of the pressure plate 2 is pressed on the top end of the blade 1, and the bottom surface of the tail of the pressure plate 2 is contacted with the top surface of the tool apron 4 through the spherical bulge 21. So that the clamping point of the insert 1 can be guaranteed to float within a certain range with respect to the horizontal. This amount of float is much greater than the manufacturing and mounting tolerances of the blade 1, thus ensuring clamping of the blade 1.
FIG. 5 schematically illustrates a top view of a dual-edged platen-type adjustable crankshaft grooving tool of the present invention with the platen removed, in one embodiment.
As shown in fig. 5, and as can be seen by referring to fig. 2, in the present embodiment, the wedge adjusting block 5 is detachably provided in the groove 11 between the pair of blades 1 on the tool rest 4, and the horizontal section of the wedge adjusting block 5 is trapezoidal.
In the present invention, the width between the pair of blades 1 can be precisely adjusted by controlling the wedge adjustment block 5. In this embodiment, the tool holder 4 of the double-edged press plate type adjustable crankshaft grooving tool according to the present invention is further provided with a clearance groove 41, and clamping arms 411 for clamping the insert are provided on both sides of the clearance groove 41. The wedge adjusting block 5 can control and adjust the distance between the adjusting screw 6 and the groove bottom 111 of the groove 11 to adjust the relative opening degree of the two clamping arms 411, thereby adjusting the clamping force applied by the clamping arms 411 to the blade 1.
Fig. 6 schematically illustrates a front view of a dual-edged platen-type adjustable crankshaft grooving tool in accordance with an embodiment of the present invention.
In this embodiment, the insert 1 according to the utility model is arranged on the holder 4 by means of a transverse positioning surface 7 on the holder 4, as shown in fig. 6. Wherein, the transverse positioning surface 7 arranged on the tool apron 4 is inclined upwards from the inner side to the outer side. The structure can enable the clamping force on the pressure plate 2 to clamp the blade 1 through a specific direction and an action point, so that the blade 1 is accurately positioned and reliably clamped, and the clamping force is larger than that of the original cutter.
It should be noted that the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradicted by each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is apparent that the present invention is not limited to the above embodiments and similar changes or modifications can be easily made by those skilled in the art from the disclosure of the present invention and shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides an adjustable bent axle slot sword of twolip clamp plate formula, its includes the blade holder and locates a pair of blade on the blade holder, its characterized in that, adjustable bent axle slot sword of twolip clamp plate formula still includes:
the pressing plate is detachably connected with the top surface of the tool apron, the head of the pressing plate is pressed at the top end of the blade, and the bottom surface of the tail of the pressing plate is contacted with the top surface of the tool apron through a spherical protrusion;
the inclined wedge adjusting block is detachably arranged in a groove between the pair of blades on the cutter holder, the horizontal section of the inclined wedge adjusting block is trapezoidal, and the inclined wedge adjusting block is arranged as follows: the distance between the blade and the bottom of the groove is adjusted to adjust the clamping force applied to the blade.
2. The double-edged platen-type adjustable crankshaft grooving tool as set forth in claim 1, wherein said platen is T-shaped with two wings of the T-shaped head portion pressing against the tips of the pair of blades, respectively.
3. The double-edged platen-type adjustable crankshaft fluted cutter as claimed in claim 1, wherein the platen is detachably connected to the top surface of the holder by a locking screw.
4. The double-edged platen-type adjustable crankshaft grooving tool of claim 1 wherein the wedge adjustment block is removably positioned in a slot in the tool holder between a pair of blades by an adjustment screw.
5. The double-edged platen type adjustable crankshaft grooving tool as claimed in claim 1, wherein the tool holder is provided with a clearance groove, the clearance groove is flanked by clamping arms for clamping the insert, and the wedge adjusting block adjusts the relative opening of the two clamping arms by adjusting the distance between the wedge adjusting block and the groove bottom of the groove, thereby adjusting the clamping force applied by the clamping arms to the insert.
6. The double-edged platen-type adjustable crankshaft grooving tool as set forth in any one of claims 1 to 5, wherein said insert is provided on the holder by a lateral positioning surface on the holder, said lateral positioning surface being inclined upward from an inner side to an outer side.
7. The double-edged platen-type adjustable crankshaft grooving tool of claim 6 wherein the angle between the transverse locating surface and the horizontal plane is 15-25 °.
8. The dual blade platen type adjustable crankshaft grooving tool of claim 7 wherein the transverse orientation plane is at an angle of 20 ° to the horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022717498.7U CN215315764U (en) | 2020-11-23 | 2020-11-23 | Double-edge pressing plate type adjustable crankshaft groove cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022717498.7U CN215315764U (en) | 2020-11-23 | 2020-11-23 | Double-edge pressing plate type adjustable crankshaft groove cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215315764U true CN215315764U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022717498.7U Active CN215315764U (en) | 2020-11-23 | 2020-11-23 | Double-edge pressing plate type adjustable crankshaft groove cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215315764U (en) |
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2020
- 2020-11-23 CN CN202022717498.7U patent/CN215315764U/en active Active
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