CN112222440A - Lever type pressing cutter and mounting method thereof - Google Patents
Lever type pressing cutter and mounting method thereof Download PDFInfo
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- CN112222440A CN112222440A CN202011066056.9A CN202011066056A CN112222440A CN 112222440 A CN112222440 A CN 112222440A CN 202011066056 A CN202011066056 A CN 202011066056A CN 112222440 A CN112222440 A CN 112222440A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
Abstract
The invention relates to the field of turning, and particularly discloses a lever type pressing tool and an installation method thereof, wherein the lever type pressing tool comprises a tool body, a blade, an L-shaped lever and a fixing piece for fixing the lever and the tool body, a first installation cavity for detachably installing the blade is arranged on the tool body, a second installation cavity for detachably installing the lever and the fixing piece is arranged on the tool body, and the first installation cavity is communicated with the second installation cavity; the blade is the polygon, and all is equipped with the cutting edge on a plurality of sides of blade, is equipped with first locating surface on at least one side of blade, and cutting edge and first locating surface all are located the side of keeping away from the mounting hole, are equipped with the second locating surface that can offset with the locating surface on the inner wall of first installation cavity, and first locating surface and second locating surface are the inclined plane. When the blade in the scheme is used for heavy-load cutting, the first positioning surface and the second positioning surface which are inclined surfaces are abutted, so that the second positioning surface provides an oblique reaction force for the first positioning surface, and the tilting probability of the blade in heavy-load cutting is reduced.
Description
Technical Field
The invention belongs to the field of turning, and particularly relates to a lever type pressing tool and an installation method thereof.
Background
Turning machines are widely used for turning, which can perform machining of structures such as threads, excircles, lathes and the like, can perform turning and stripping of excess materials on a blank, and can also perform profiling. On a turning machine tool, a cutting blade is a high-loss part and is frequently required to be replaced. The conventional cutting knife can be mounted on the clamp in a straight manner, when the cutting knife is applied to heavy-load cutting, the cutting force applied to a blank by the cutting knife is large, the reaction force applied to the cutting knife is also large, and the mounting between the cutting knife and the clamp is unstable, so that the cutting knife can loosen or even overturn relative to the clamp.
Disclosure of Invention
The invention aims to provide a lever type pressing cutter to solve the problem that when heavy-load cutting is carried out, clamping between a cutting cutter and a clamp is unstable, and further the cutting cutter is easy to loosen and even overturn.
In order to achieve the above object, the basic scheme of the invention is as follows: a lever type pressing tool comprises a tool body, a blade, an L-shaped lever for fixing the blade and the tool body, and a fixing piece for fixing the lever and the tool body, wherein a first mounting cavity for detachably mounting the blade is formed in the tool body; the center department of blade is equipped with the mounting hole that the tip that supplies the lever passed, and the blade is the polygon, and all is equipped with the cutting edge on a plurality of sides of blade, is equipped with first locating surface on at least one side of blade, and cutting edge and first locating surface all are located the side of keeping away from the mounting hole, and first locating surface intersects with the axis of mounting hole, are equipped with the second locating surface that can offset with the locating surface on the inner wall of first installation cavity, and first locating surface and second locating surface are the inclined plane.
The principle and advantages of the basic scheme are as follows: after the installation of accomplishing blade, lever and mounting, the lever compresses tightly the blade in the first installation intracavity of cutter body for first locating surface and second locating surface fully offset, when the blade carries out the heavy load cutting under the drive of blade, the first locating surface and the second locating surface that are the inclined plane offset, make the second locating surface provide an inclined reaction force for first locating surface, and then the blade can carry out stable support to the blade, reduce the probability of tumbling that the blade was carrying out the heavy load cutting.
Through the location fit between first locating surface and the second locating surface, need not on one side that the blade was kept away from to set up and carry out spacing pressure equipment structure to the blade, can effectually improve the chip removal ability that the blade body kept away from blade one side for the blade can not only carry out lathe work to the hole of excircle and heavy-calibre, can also carry out lathe work to the hole of small bore.
Meanwhile, after the cutting edge on one side of the blade is damaged due to long-time use, the blade can be disassembled and then rotated, and the blade is installed on the cutter body again, so that the cutting edge on the other side of the blade is opposite to a part to be turned, the blade can be replaced, and the service life of the blade is prolonged.
Further, the cutting edge of blade department is located outside first installation cavity, all is equipped with the second locating surface on the lateral wall that the second installation cavity is on a parallel with the mounting hole axis, and a plurality of second locating surfaces all are located the coplanar.
Through the arrangement, the second positioning surfaces are arranged on the side walls parallel to the axis of the mounting hole on the second mounting cavity, the first positioning surfaces on the side surfaces of the blade can be abutted against the second positioning surfaces on the different side surfaces of the second mounting cavity, the matching degree between the first positioning surfaces and the second positioning surfaces is improved, and the blade convenient to replace the blade is convenient to use.
Furthermore, two first positioning surfaces are arranged on the same side face of the blade and symmetrically arranged along the center line of the blade, and a positioning plane is transited between the two first positioning surfaces on the same side face of the blade and is parallel to the axis of the mounting hole.
Through the arrangement, when the blade is installed in the first installation cavity, two first positioning surfaces arranged on the same side face of the blade can abut against a single second positioning surface on the first installation cavity, so that the blade can be installed after being overturned by 180 degrees, the installation of the blade is not limited by the installation position of the first positioning surfaces, and the installation efficiency of the blade can be improved.
Furthermore, the acute angle between the positioning plane and the first positioning plane is 5-20 degrees, and the width of the first positioning plane and the width of the second positioning plane are more than or equal to 2 mm.
Through the arrangement, when the blade is mounted, the limit of the second positioning surface of the cutter body is small, the first positioning surface and the second positioning surface can be fully abutted, and the reaction force is ensured to be obliquely applied to the first positioning surface.
Further, the mounting is the lever screw, and the second installation cavity includes standing groove and regulation hole, the one end and the first installation cavity intercommunication of standing groove, the other end and the regulation hole intercommunication of standing groove, lever screw threaded mounting is in the regulation hole, the coaxial caulking groove that is provided with the tip embedding that supplies the lever on the lateral wall of lever screw, the lever is close to the one end of lever screw and can imbed in the caulking groove, the axis of lever screw is parallel with the axis of mounting hole, be equipped with the installation clearance between standing groove and the lever lateral wall.
Through the arrangement, the lever screw can limit the end, away from the blade, of the lever, the locking condition between the lever screw and the end part of the lever can be adjusted in the adjusting hole, when the end part of the lever is locked with the lever screw, the caulking groove can be fully abutted against the end, away from the blade, of the lever, then the cutter body is locked by the end, close to the cutter body, of the lever, the first positioning surface of the blade is fully attached to the second positioning surface of the cutter body, and the lever screw can stably support the blade.
Furthermore, the side surface of the lever close to one end of the lever screw is a conical surface, and the conical surface of the lever can be abutted against the two sides of the caulking groove.
Through the arrangement, when the conical surface of the lever is abutted to the inner wall of the caulking groove, the reaction force applied to the conical surface of the lever by the caulking groove of the lever screw is also obliquely arranged, so that the pressure applied to the lever can be effectively dispersed on the cutter body, the installation strength of the blade is improved, and the tipping probability of the blade is reduced.
Further, the cross section profile of the first installation cavity of the cutter body is L-shaped, the blades are rhombic or square, the cutting edges are arranged on two adjacent sides of the blades, and the first positioning surfaces are arranged on two other adjacent sides of the blades.
Through the arrangement, the blade can be replaced only by turning 180 degrees around the symmetrical lines of the blades on the two sides, and the blade is convenient and quick to replace; simultaneously, the blade is after trading the sword, and two first locating surfaces on the blade both sides all can offset with two second locating surfaces of first installation cavity department, and the installation of blade is stable.
Further, still include the shim, the shim sets up between the lateral wall of blade and first installation cavity, and the center department of shim is equipped with the jack that supplies the tip of lever to pass, and jack and the coaxial setting of mounting hole.
Through the setting of shim, can let the laminating of blade and first installation cavity bottom surface inseparabler for the blade is being carried out turning process, and difficult vibration or tumbling.
Further, the mounting method of the lever type pressing cutter comprises the following steps:
step 1: preparing a blade, a shim, a lever and a lever screw;
step 2: inserting the lever screw in the step 1 into an adjusting hole of the cutter body, screwing the lever screw into the adjusting hole when the thread on the lever screw is in contact with the thread in the adjusting hole, and moving the caulking groove on the lever screw to the direction close to one end of the placing groove far away from the first mounting cavity; when the caulking groove is opposite to one end of the placing groove far away from the first mounting cavity, the lever screw is suspended to be screwed in;
and step 3: enabling one end, provided with a conical surface, of the lever in the step 1 to penetrate through the placing groove and be in contact with the caulking groove; one end of the lever, which is far away from the conical surface, is positioned on the first mounting cavity;
and 4, step 4: taking the knife pad in the step 1, enabling one end, far away from the conical surface, of the lever to penetrate through an insertion hole of the knife pad, and enabling the knife pad to be attached to the bottom surface of the first installation cavity;
and 5: shifting one end of the lever, which is far away from the conical surface, to move towards the direction far away from the second positioning surface, inserting one end of the lever, which is far away from the conical surface, into the mounting hole of the blade in the step 1, moving one end of the lever, which is far away from the conical surface, towards the direction close to the second positioning surface after the side surface of the blade is attached to the knife pad, and enabling the first positioning surface of the blade to abut against the second positioning surface on the first mounting cavity;
step 6: rotating the lever screw again, wherein one side of the caulking groove close to the blade is tightly abutted to the conical surface of the lever, and one end of the lever far away from the conical surface tightly presses the blade towards the direction of the second positioning surface;
and 7: when the cutting edge on one side of the blade is damaged, the lever screw is rotated, the conical surface of the lever does not abut against the caulking groove any more, and the blade is disassembled; and (3) after the blade is detached, turning the blade for 180 degrees around a symmetrical line between the cutting edges at two sides, repeating the step 5 and the step 6, re-installing the blade, and performing blade changing treatment on the blade.
The installation method has the advantages that: in the step 2, the lever screw can be quickly installed in the adjusting hole, and the caulking groove on the lever screw is accurately opposite to the placing groove, so that the lever in the step 3 can be conveniently installed; meanwhile, through the matching of the step 2 and the step 3, the conical surface at the end part of the lever is in a contact state with the inner wall of the caulking groove of the lever screw, and the conical surface at the end part of the lever is not abutted against the inner wall of the caulking groove, so that a space is provided for the installation of the blade in the step 5; in the step 5, one end of the lever close to the first mounting cavity can be moved through a mounting gap between the lever and the placing groove, so that the edge of the first positioning surface of the blade is staggered with the edge of the second positioning surface of the cutter body, the blade is mounted on the lever and in the first mounting cavity, the first positioning surface and the second positioning surface are tightly attached, and the blade is convenient to mount; in the step 6, the lever screw locks the lever through the caulking groove, and meanwhile, the lever tightly supports the blade and the cutter body, so that the support between the first positioning surface and the second positioning surface is realized, and the blade can be installed to have an anti-tipping effect; meanwhile, in the step 7, the cutting edge can be quickly replaced, the cutting edge on the same blade is quickly and conveniently replaced, and the operation is simple.
Further, the width of the mounting gap is 0.5-1.5 mm.
Through the arrangement, in the step 3, the lever embedded into the placing groove is in a loose state; the blade is convenient to stir in the step 5, the lever is convenient to move towards the direction far away from the second positioning surface, the edge of the first positioning surface of the blade is not limited by the second positioning surface of the blade body, the blade can be smoothly installed in the first installation cavity, and the first positioning surface and the second positioning surface are directly attached.
Drawings
Fig. 1 is a schematic structural view of a lever type pressing tool in a front view direction according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the lever type pressing tool of FIG. 1 before the blade is mounted;
fig. 4 is a flowchart of a method of mounting the lever-type pressing tool in embodiment 1 of the present invention;
fig. 5 is a sectional view of a cutter body, a blade, a shim, a lever and a lever screw in a lever type pressing cutter according to embodiment 2 of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the cutter body 10, the first mounting cavity 101, the second positioning surface 111, the second mounting cavity 102, the placing groove 112, the adjusting hole 122, the blade 20, the cutting edge 201, the first positioning surface 202, the positioning plane 203, the shim 30, the lever 40, the long end 401, the short end 402, the tapered surface 412, the lever screw 50, the caulking groove 51, the threaded hole 501 and the bolt 502.
Example 1
Example 1 is substantially as shown in figures 1, 2 and 3: the utility model provides a lever type compresses tightly cutter, including cutter body 10, blade 20, the shim 30, the lever 40 of the "L" type of fixed blade 20 and cutter body 10 and the lever screw 50 of fixed lever 40 and cutter body 10, be equipped with on the cutter body 10 and supply blade 20 to carry out demountable installation's first installation cavity 101, be equipped with on the cutter body 10 and supply lever 40 and mounting to carry out the second installation cavity 102 of demountable installation, first installation cavity 101 and second installation cavity 102 intercommunication, second installation cavity 102 includes standing groove 112 and regulation hole 122, the upper left end and the first installation cavity 101 intercommunication of standing groove 112, the lower right end and the regulation hole 122 intercommunication of standing groove 112.
As shown in fig. 2, the lever screw 50 is screwed in the adjusting hole 122, the "L" shaped lever 40 includes a long end 401 and a short end 402, an embedding slot 51 for embedding the short end 402 of the lever 40 is coaxially arranged on the side wall of the lever screw 50, the side surface of the short end 402 of the lever 40 is a tapered surface 412, and the end of the short end 402 of the lever 40 passes through the placing slot 112 and abuts against two sides of the embedding slot 51; an annular mounting gap is arranged between the placing groove and the side wall of the lever, and the thickness of the mounting gap is 0.5 mm.
As shown in fig. 1, a mounting hole for the long end 401 of the lever 40 to pass through is formed in the center of the blade 20, a blade edge 201 is formed on the upper side of the blade 20, and two first positioning surfaces 202 are formed on the right side and the lower side of the blade 20; as shown in fig. 3, a positioning plane 203 is transited between two first positioning surfaces 202 on the same side of the blade 20, the positioning plane 203 is parallel to the axis of the mounting hole, the two first positioning surfaces 202 are symmetrically arranged along the center line of the blade 20, the acute angle θ between the positioning plane 203 and the first positioning surface 202 is 12 °, and the widths of the first positioning surface 202 and the second positioning surface 111 are equal to 3 mm; as shown in fig. 1, the cross-sectional profile of the first mounting cavity 101 of the cutter body 10 is "L" shaped, the cutting edge 201 of the blade 20 is located outside the first mounting cavity 101, the right side and the lower side of the first mounting cavity 101 are both provided with the second positioning surface 111, the cutting edge 201 and the first positioning surface 202 are both located on the side surface far away from the mounting hole, the first positioning surface 202 intersects with the axis of the mounting hole, the inner wall of the second mounting cavity is provided with the second positioning surface 111 which can abut against the positioning surface, and the first positioning surface 202 and the second positioning surface 111 are both inclined surfaces.
As shown in fig. 1, the shim 30 is disposed between the blade 20 and a side wall of the first mounting cavity 101, and a receptacle through which an end of the lever 40 passes is provided at a center of the shim 30, the receptacle being disposed coaxially with the mounting hole.
In addition, the blade 20 is diamond-shaped, the four sides are all equal in length, and the acute angle on the blade 20 is 80 °.
When the lever type pressing tool in the embodiment is installed, the installation process is basically as shown in fig. 4, and the method specifically comprises the following steps:
step 1: preparing the blade 20, the shim 30, the lever 40, and the lever screw 50;
step 2: as shown in fig. 2, the lever screw 50 in step 1 is inserted through the lower end of the adjusting hole 122 and is installed into the adjusting hole 122 of the cutter body 10 from bottom to top, when the thread on the lever screw 50 contacts the thread in the upper end of the adjusting hole 122, the lever screw 50 is screwed into the adjusting hole 122 in the forward direction, and the caulking groove 51 on the lever screw 50 moves towards the right end of the placing groove 112; when the insertion groove 51 is opposed to the right end of the placement groove 112, the screwing-in of the lever screw 50 is suspended;
and step 3: the end of the lever 40 provided with the tapered surface 412 in the step 1 penetrates through the placing groove 112 and is in contact with the caulking groove 51, the lever 40 is in a loose state under the arrangement of the installation gap, and the left upper end of the lever 40 is positioned in the first installation cavity 101;
and 4, step 4: taking the shim 30 in the step 1, enabling the left upper end of the lever 40 to penetrate through an insertion hole of the shim 30, and enabling the shim 30 to be attached to the bottom surface of the first mounting cavity 101;
and 5: the left upper end of the toggle lever 40 moves towards the left side, the left upper end of the toggle lever 40 is inserted into the mounting hole of the blade 20 in the step 1, after the side surface of the blade 20 is attached to the shim 30, the left upper end of the toggle lever 40 moves towards the direction close to the second positioning surface 111, and the first positioning surface 202 of the blade 20 abuts against the second positioning surface 111 on the first mounting cavity 101;
step 6: then the lever screw 50 is rotated reversely, the upper side of the caulking groove 51 is tightly abutted to the tapered surface 412 of the lever 40, and the left upper end of the lever 40 presses the blade 20 towards the direction of the second positioning surface 111, so that the first positioning surface 202 and the second positioning surface 111 are pressed tightly;
and 7: when the blade edge 201 on one side of the blade 20 is damaged, the lever screw 50 is rotated in the forward direction, and the conical surface 412 of the lever 40 is not abutted against the caulking groove 51 any more, so that the blade 20 is disassembled; after the blade 20 is disassembled, the blade 20 is turned 180 degrees around the symmetry line between the blade edges 201 on the two sides, and the steps 5 and 6 are repeated, the blade 20 is installed again, and the blade edge 201 changing treatment is carried out on the blade 20.
After the lever 40 type pressing tool in this embodiment is installed, the tapered surface 412 of the short end 402 of the lever 40 abuts against the upper side of the caulking groove 51 to form a first abutting surface, the lever 40 is limited by the caulking groove 51 of the lever screw 50, so that the short end 402 of the lever 40 tends to rotate clockwise, the side surface of the long end 401 of the lever 40 abuts against the inner wall of the installation hole of the blade 20 to form a second abutting surface, and the long end 401 of the lever 40 presses the blade 20 towards the second positioning surface 111, so that the first positioning surfaces 202 on the two sides of the blade 20 abut against the two second positioning surfaces 111 on the tool body 10 respectively to form a third abutting surface.
When the turning machine tool drives the blade 20 to carry out heavy-load cutting through the cutter body 10, the first positioning surface 202 of the blade 20 is fully abutted against the second positioning surface 111 of the cutter body 10, so that the first positioning surface 202 of the blade 20 is subjected to a reaction force of the second positioning surface 111, and the reaction force is inclined downwards to provide a force for restraining the cutting force for the blade 20, thereby improving the stress condition of the blade 20 and reducing the probability of the blade 20 tipping caused by heavy load.
Example 2
Embodiment 2 differs from embodiment 1 in that embodiment 2 is substantially as shown in fig. 5, and further includes a bolt 502, a threaded hole 501 is coaxially disposed in the top end of the lever screw 50, the bolt 502 is vertically disposed, the bolt 502 can be in threaded connection with the threaded hole 501, and the bolt 502 can be abutted against the outer wall of the cutter body 10.
In step 6, after the upper side of the caulking groove 51 abuts against the tapered surface 412 of the lever 40, the bolt 502 is screwed into the threaded hole 501, and the lever screw 50 is further fixed.
When the lever 40 type pressing tool is used, the pressure at the short end 402 of the lever 40 and the caulking groove 51 of the lever screw 50 can be transmitted to the bolt 502 at the moment, and further can be transmitted to the surface of the tool body 10 through the bolt 502, so that the requirement of threaded connection between the lever screw 50 and the adjusting hole 122 is reduced, and the stability of connection between the lever screw 50 and the tool body 10 is improved.
Claims (10)
1. A lever type pressing tool comprises a tool body and a blade, and is characterized by further comprising an L-shaped lever for fixing the blade and the tool body, and a fixing piece for fixing the lever and the tool body, wherein a first mounting cavity for detachably mounting the blade is formed in the tool body, a second mounting cavity for detachably mounting the lever and the fixing piece is formed in the tool body, and the first mounting cavity is communicated with the second mounting cavity; the center department of blade is equipped with the mounting hole that the tip that supplies the lever passed, and the blade is the polygon, and all is equipped with the cutting edge on a plurality of sides of blade, is equipped with first locating surface on at least one side of blade, and cutting edge and first locating surface all are located the side of keeping away from the mounting hole, and first locating surface intersects with the axis of mounting hole, are equipped with the second locating surface that can offset with the locating surface on the inner wall of first installation cavity, and first locating surface and second locating surface are the inclined plane.
2. The lever type pressing tool as claimed in claim 1, wherein the cutting edge of the blade is located outside the first mounting cavity, the side walls of the second mounting cavity parallel to the axis of the mounting hole are provided with second positioning surfaces, and the second positioning surfaces are located on the same plane.
3. A lever type pressing tool as claimed in claim 2, wherein the blade is provided with two first positioning surfaces on the same side, the two first positioning surfaces are symmetrically arranged along the center line of the blade, and a positioning plane is transited between the two first positioning surfaces on the same side of the blade, and the positioning plane is parallel to the axis of the mounting hole.
4. A lever type pressing tool as claimed in claim 3, wherein the acute angle between the positioning plane and the first positioning plane is 5 to 20 °, and the width of the first positioning plane and the second positioning plane is 2mm or more.
5. The lever type pressing tool as claimed in claim 4, wherein the fixing member is a lever screw, the second mounting cavity comprises a placing groove and an adjusting hole, one end of the placing groove is communicated with the first mounting cavity, the other end of the placing groove is communicated with the adjusting hole, the lever screw is threadedly mounted in the adjusting hole, a caulking groove for embedding the end portion of the lever is coaxially arranged on the side wall of the lever screw, one end of the lever close to the lever screw can be embedded in the caulking groove, the axis of the lever screw is parallel to the axis of the mounting hole, and a mounting gap is formed between the placing groove and the side wall of the lever.
6. A lever type compression tool as claimed in claim 5 wherein the side of the lever adjacent the end of the lever screw is tapered to abut against the sides of the rebate.
7. A lever type press tool as claimed in claim 6 wherein the cross sectional profile of the first mounting cavity of the tool body is "L" shaped and the cutting edge is rhombus or square shaped, the cutting edges being provided on adjacent sides of the cutting edge and the first locating surfaces being provided on further adjacent sides of the cutting edge.
8. A lever type pressing tool as claimed in any one of claims 1 to 7, further comprising a shim disposed between the blade and the side wall of the first mounting chamber, and a socket for passing an end of the lever is provided at a center of the shim, the socket being disposed coaxially with the mounting hole.
9. A method of mounting a leverage press tool as claimed in claim 8 and including the steps of:
step 1: preparing a blade, a shim, a lever and a lever screw;
step 2: inserting the lever screw in the step 1 into an adjusting hole of the cutter body, screwing the lever screw into the adjusting hole when the thread on the lever screw is in contact with the thread in the adjusting hole, and moving the caulking groove on the lever screw to the direction close to one end of the placing groove far away from the first mounting cavity; when the caulking groove is opposite to one end of the placing groove far away from the first mounting cavity, the lever screw is suspended to be screwed in;
and step 3: enabling one end, provided with a conical surface, of the lever in the step 1 to penetrate through the placing groove and be in contact with the caulking groove; one end of the lever, which is far away from the conical surface, is positioned on the first mounting cavity;
and 4, step 4: taking the knife pad in the step 1, enabling one end, far away from the conical surface, of the lever to penetrate through an insertion hole of the knife pad, and enabling the knife pad to be attached to the bottom surface of the first installation cavity;
and 5: shifting one end of the lever, which is far away from the conical surface, to move towards the direction far away from the second positioning surface, inserting one end of the lever, which is far away from the conical surface, into the mounting hole of the blade in the step 1, moving one end of the lever, which is far away from the conical surface, towards the direction close to the second positioning surface after the side surface of the blade is attached to the knife pad, and enabling the first positioning surface of the blade to abut against the second positioning surface on the first mounting cavity;
step 6: rotating the lever screw again, wherein one side of the caulking groove close to the blade is tightly abutted to the conical surface of the lever, and one end of the lever far away from the conical surface tightly presses the blade towards the direction of the second positioning surface;
and 7: when the cutting edge on one side of the blade is damaged, the lever screw is rotated, the conical surface of the lever does not abut against the caulking groove any more, and the blade is disassembled; and (3) after the blade is detached, turning the blade for 180 degrees around a symmetrical line between the cutting edges at two sides, repeating the step 5 and the step 6, re-installing the blade, and performing blade changing treatment on the blade.
10. A method of mounting a leverage press tool as claimed in claim 9 wherein the width of the mounting gap is 0.5 to 1.5 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066056.9A CN112222440A (en) | 2020-09-30 | 2020-09-30 | Lever type pressing cutter and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011066056.9A CN112222440A (en) | 2020-09-30 | 2020-09-30 | Lever type pressing cutter and mounting method thereof |
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| CN112222440A true CN112222440A (en) | 2021-01-15 |
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| US3777341B1 (en) * | 1971-05-28 | 1982-10-26 | ||
| GB1402702A (en) * | 1972-12-13 | 1975-08-13 | Sandvik Ab | Cutting tool holder assembly |
| CN2194230Y (en) * | 1993-08-18 | 1995-04-12 | 邓朝华 | Clamping structure for cutter by hole clamping parts |
| CN2228386Y (en) * | 1995-06-23 | 1996-06-05 | 庞树生 | Index lathe and planer tool |
| CN102056694A (en) * | 2008-06-13 | 2011-05-11 | 特固克有限会社 | Cutting insert |
| CN103269818A (en) * | 2010-10-05 | 2013-08-28 | 伊斯卡有限公司 | Clamping device having independently resilient clamping fingers for clamping a cutting insert in a tool holder |
| CN104093511A (en) * | 2012-02-07 | 2014-10-08 | 伊斯卡有限公司 | Indexable double-negative cutting insert having protruding side abutment surfaces and cutting tool |
| CN105228778A (en) * | 2013-05-20 | 2016-01-06 | 株式会社钨钛合金 | Cutting tip, tool body and cutting element |
| CN110769958A (en) * | 2017-09-13 | 2020-02-07 | 山特维克知识产权股份有限公司 | Cutting insert and crankshaft milling tool |
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Application publication date: 20210115 |