CN213002692U - Indexable mechanically-clamped combined tool - Google Patents
Indexable mechanically-clamped combined tool Download PDFInfo
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- CN213002692U CN213002692U CN202020912369.0U CN202020912369U CN213002692U CN 213002692 U CN213002692 U CN 213002692U CN 202020912369 U CN202020912369 U CN 202020912369U CN 213002692 U CN213002692 U CN 213002692U
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Abstract
The utility model relates to a but transposition machine presss from both sides gang tool, it is divided into by handle of a knife and tool bit two parts, and 4 blades are equipped with to the tool bit, and wherein two HFPR3003 blade dress that are used for car deep groove are at the tool bit front end, and two VCMT110304 blade dress that are used for processing the chamfer are at the tool bit middle part in addition, and the tool bit is cylindrical, and 16 outside knifepoints of blade are used for processing the big footpath size of groove, and 17 inboard knifepoints of blade are used for processing the groove path size. The cutter head is provided with a buffer groove, the chip groove is Y-shaped, the front section of the chip groove simulates a chip removal shape and is in an R curve, the rear section of the chip groove is a straight section, the top end of the cutter head is in a spiral descending shape, and water outlet holes are designed above 4 blades to ensure the service life of the blades, so that cooling liquid can be accurately sprayed to the cutter point, and a timely cooling effect is achieved. The cutter arbor is integrally processed and formed by spring steel bar materials, the middle part of the cutter arbor is not welded, the integral rigidity of the cutter arbor is good, and the problem of processing end face deep grooves is solved.
Description
Technical Field
The utility model relates to a cutter of end face slot processing, especially a but transposition machine clamp gang tool that is fit for stainless steel work piece terminal surface deep trouth batch processing.
Background
As is well known, the difficulties in processing stainless steel materials are: 1. the cutting force is large, and the cutting temperature is high; 2. the work hardening is severe; 3. the cutter is easy to stick; 4. the cutter is worn quickly. Aiming at the difficulties, the tool is frequently changed in the machining process, so that the production efficiency is influenced, and the use cost of the tool is increased. In particular, the processing of stainless steel deep grooves becomes a difficult problem in the industry. In the field of groove machining, the cutter with the shape of "Isca" is well known to be the best cutter, and particularly, the cutter with the shape of stainless steel is machined by the groove cutter made of the IC354 material of the company, the cutter is not easy to break, and the service life is long, so the following document uses the cutter with the shape of "Isca" for comparison. A batch of 316 stainless steel workpieces was ordered for sol-gel precision casting post-processing, see fig. 1 and 2. The difficulty of analyzing the drawing is to process the end face deep groove part in the figure 2. The major diameter of the groove is phi 42.6mm, the minor diameter is phi 35.4mm, and the groove width is calculated as follows: (42.6-35.4)/2 =3.6 mm, the depth of the groove is required to be 22mm, and the groove depth from the right end face of the workpiece to the bottom of the groove is 44 mm. The major diameter of the groove is 42.6mm, according to the required groove diameter and groove width in the figure, by consulting the specification of 'Isca', only the HFHR/L25-38-3T 12 cutter is close to the required groove diameter, but the groove depth T can only be processed by 12 mm; the width and the processing diameter range of the blade can not meet the requirements of the drawing. Outside the groove, there is also a requirement to machine a 6 x 20.14 ° chamfer. If the workpiece is produced in a single piece or in small batches, the problem of sharpening or welding the blade can be considered, but the product is a batch order, if the cutter is sharpened or welded by the product, the size precision and the service life of the cutter cannot meet the requirements, the machining precision cannot be ensured, the machining efficiency can be correspondingly reduced, and therefore the requirements of batch production cannot be met by sharpening or welding the cutter. Aiming at the analysis, the best method for machining the stainless steel deep groove is to utilize an indexable formed blade which is successfully developed by the existing cutter manufacturer, then design an indexable mechanically-clamped combined cutter by self, and directly replace the blade after the blade is worn, so as to meet the machining requirement of the deep groove of the workpiece.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose utilizes current transposition shaping blade, designs a but transposition machine presss from both sides gang tool, and the blade is directly changed after the blade wearing and tearing, satisfies stainless steel deep trouth product batch production's demand.
The utility model discloses an idea is that, work piece main processing M52 external screw thread, end face slot, chamfer and hole belong to the solid of revolution processing, are fit for processing this product on the numerical control lathe, so the cutter design also should use numerical control lathe to go on as the basis, designs the end face slot cutter that a suitable numerical control lathe used, satisfies the requirement of this work piece deep trouth processing. First, a suitable cutting insert, as exemplified by the itacar tool, is selected. According to the analysis of the drawing, the groove width of the workpiece is as follows: (42.6-35.4)/2 =3.6 mm, and the width of the indexable mechanically clamped insert is less than 3.6 mm. By reference, the existing formed blade approaching this width is 3.0mm, the blade model is: HFPR3003 blades, each blade having two tips are available. Considering that the workpiece is made of stainless steel 316, the HFPR3003 IC354 blade is selected. The cutter matched with the cutter is HFHR/L25-38-3T 12, and the maximum processing depth is 12 mm. If the distance of the T dimension in the figure 8 is lengthened according to the design idea of a cutter manufacturer, see figure 8, to meet the requirement of the groove depth of 22mm, the T dimension is too long, the cutter holder is thin, the torque borne by the cutter point in the machining process is large, the cutter is very easy to break, and therefore the cutter cannot be manufactured according to the idea of simply lengthening the T dimension by the cutter manufacturer. The workpiece is typically characterized by narrow and deep grooves, and the problem of rigidity of the tool is mainly solved when the tool is designed.
The tool is integrally manufactured by spring steel bar materials, and the middle of the tool is not welded. The slot size requirement is: the major diameter phi 42.6mm and the minor diameter phi 35.4mm, in order to improve the strength of the cutter, the cutter head part should be as thick as possible, so the most ideal mode is to make the cutter into a cylinder shape, and the whole cylinder is used for supporting the cutter blade, the major diameter phi 42.6mm and the minor diameter 35.4mm, and the design can ensure that the strength is highest. Specifically, considering chip removal and practical use conditions during turning, the diameter of the top end of the cutter head is slightly smaller than that of the groove blade, and a certain gap is required to be reserved, so that the large diameter of the top end of the cutter head of the new cutter is designed to be phi 42.2 mm, and the small diameter is phi 35.8 mm. It can be seen from fig. 8 that the cutter designed by the cutter manufacturer only has one blade, but according to the 180-degree symmetry principle, the utility model discloses a 2 slotting tool blades are equipped with on the cutter. Wherein, the processing diameter of the outer side tool nose of the first blade 16 is designed according to the major diameter phi 42.6 mm; the inner side tool tip of the second blade 17 is designed according to the small diameter phi of the groove of 35.4mm, thus ensuring that the diameter of the groove is qualified by one-time processing. Survey and drawing HFPR blade size in advance, HFPR sword holds in the palm and the HFPR clamp plate mills according to blade positioning groove shape and size to guarantee accurate positioning, HFPR sword holds in the palm directly makes 5 ~ 7 anterior angles simultaneously. Therefore, when the design is carried out, the tool tips of the 2 blades pass through the center of the tool holder, and the highest point is on the same plane, so that the two blades participate in turning at the same time, the groove width is formed at one time, and the turning efficiency is improved by 50% compared with that of one blade. In order to firmly clamp the blade, a buffer groove is cut on the blade head by linear cutting so as to ensure that the screw can completely and thoroughly compress the first blade and the second blade. The workpiece is processed by a deep groove, chips are easy to accumulate in the processing process, and in order to ensure smooth chip removal in the processing process, a Y-shaped chip removal groove is designed, and the front section of the Y-shaped chip removal groove simulates the shape of the chip removal and is made into an R curve to help the chip removal; the rear half part is a straight section, which helps to break chips, promotes the chips to be removed in time and avoids the chips from being accumulated to cause the cutter to be broken. In order to help chip removal, the top end of the cutter head is designed to be in a spiral descending state.
Similarly, outside the groove, a 6 × 20.14 ° chamfer is also machined. In order to improve the processing efficiency, the invention is designed into a combined cutter, and the chamfer is processed together with the groove, so that the processing efficiency is improved. According to the invention, on the cutter head, a VCMT110304 blade is selected according to the requirements of the chamfer angle, and two VCMT cutter positions are arranged on the cross section perpendicular to the HFPR3003 blade according to the requirements of the chamfer dimension, wherein the VCMT cutter positions are in symmetric sizes. Therefore, the end face groove and the chamfer are machined to form a cutter, and the cutter is machined and formed at one time, so that the machining efficiency is greatly improved.
In order to prolong the service life of the blades, water outlet holes are designed above the 4 blades, so that the cooling liquid can be accurately sprayed to the tool tip, and the timely cooling effect is achieved.
In order to improve the strength of the cutter, the cutter handle part is designed according to the size of the maximum inner hole of the cutter holder of the numerical control lathe and is directly arranged in the inner hole of the cutter holder of the numerical control lathe. In order to ensure firm compression, a positioning surface is milled on the knife handle.
The utility model discloses a design process is such:
an indexable mechanically-clamped combined cutter mainly comprises a cutter handle and a cutter head. In order to improve the rigidity of the cutter, the cutter is integrally manufactured by spring steel bar materials, and the middle of the cutter is not welded. The slot size requirements in the figure are: the major diameter phi 42.6mm and the minor diameter phi 35.4mm, in order to improve the strength of the cutter, the cutter head part should be as thick as possible, so the most ideal mode is to make the cutter into a cylinder shape, and the whole cylinder is used for supporting the cutter blade, the major diameter phi 42.6mm and the minor diameter 35.4mm, and the design can ensure that the strength is highest. Specifically, considering chip removal and practical use conditions during turning, the diameter of the top end of the cutter head is slightly smaller than that of the groove blade, and a certain gap is required to be reserved, so that the large diameter of the top end of the cutter head of the new cutter is designed to be phi 42.2 mm, and the small diameter is phi 35.8 mm. As can be seen from fig. 8, the cutter designed by the cutter manufacturer only has one blade, but in order to improve the processing efficiency, 2 slotting cutter blades are arranged on the cutter designed by the invention according to the 180-degree symmetry principle. Wherein, the processing diameter of the outer side tool nose of the first blade 16 is designed according to the major diameter phi 42.6 mm; the inner side tool tip of the second blade 17 is designed according to the small diameter phi of the groove of 35.4mm, thus ensuring that the diameter of the groove is qualified by one-time processing. Survey and drawing HFPR blade size in advance, HFPR sword holds in the palm and the HFPR clamp plate mills according to blade positioning groove shape and size to guarantee accurate positioning, HFPR sword holds in the palm directly makes 5 ~ 7 anterior angles simultaneously. Therefore, when the design is carried out, the tool tips of the 2 blades pass through the center of the tool holder, and the highest point is on the same plane, so that the two blades participate in turning at the same time, the groove width is formed at one time, and the turning efficiency is improved by 50% compared with that of one blade. In order to clamp the blade firmly, a buffer groove is cut on the cutter head by linear cutting so as to ensure that the screw can completely and completely compress the HFPR3003 blade. The workpiece is processed by a deep groove, chips are easy to accumulate in the processing process, and in order to ensure smooth chip removal in the processing process, a Y-shaped chip removal groove is designed, and the front section of the Y-shaped chip removal groove simulates the shape of the chip removal and is made into an R curve to help the chip removal; the rear half part is a straight section, which helps to break chips, promotes the chips to be removed in time and avoids the chips from being accumulated to cause the cutter to be broken. In order to help chip removal, the top end of the cutter head is designed to be in a spiral descending state.
Similarly, the workpiece processing diagram is analyzed, and 6 × 20.14 ° chamfers are processed outside the groove. In order to improve the processing efficiency, the invention is designed into a combined cutter, and the chamfer is processed together with the groove, so that the processing efficiency is improved. According to the invention, on the cutter head, a VCMT110304 blade is selected according to the requirements of a chamfering angle, and two VCMT cutter positions are arranged on a section vertical to the first blade according to the requirements of the chamfering dimension, wherein the VCMT cutter positions are in a symmetrical position in dimension. Therefore, the end face groove and the chamfer are machined to form a cutter, and the cutter is machined and formed at one time, so that the machining efficiency is greatly improved.
In order to prolong the service life of the blades, water outlet holes are designed above the 4 blades, so that the cooling liquid can be accurately sprayed to the tool tip, and the timely cooling effect is achieved.
In order to improve the strength of the cutter, the cutter handle part is designed according to the size of the maximum inner hole of the cutter holder of the numerical control lathe and is directly arranged in the inner hole of the cutter holder of the numerical control lathe. In order to ensure firm compression, a positioning surface is milled on the knife handle.
The utility model discloses the beneficial effect who gains as follows:
1. the cylindrical cutter has good rigidity, and solves the problem of processing end face deep grooves.
2. The invention utilizes the prior forming machine to clamp the blade and designs the blade into a multi-blade combined cutter, and the blade is directly replaced after the blade point is worn, thereby improving the working efficiency. 3. The front section of the Y-shaped chip removal groove simulates the chip removal shape and is made into an R curve to help chip removal; the rear half part is a straight section, which helps to break chips, promotes the chips to be removed in time and avoids the chips from being accumulated to cause the cutter to be broken.
Drawings
FIG. 1 is a schematic diagram of the outline dimensions of a blank of a machined part.
FIG. 2 is a dimension diagram of a groove portion of a machined part.
Fig. 3 is a schematic view of the shape structure of the indexable mechanically-clamped combined tool of the present invention.
Fig. 4 is a schematic view of a cross section A-A of the indexable mechanically-clamped combined tool of the present invention.
Fig. 5 is a schematic view of the cross-sectional structure of the indexable mechanically-clamped gang tool of the present invention from B to B.
Fig. 6 is a top view of the indexable mechanically-clamped gang tool of the present invention.
Fig. 7 is a partial enlarged view of the upper tool holder of the indexable mechanically-clamped combined tool of the present invention.
Fig. 8 is the schematic view of the shape of the Ister end face slot cutter.
Fig. 9 is a rear schematic view of the indexable mechanically-clamped gang tool of the present invention after the insert is mounted thereon.
The designations in the figures represent the following meanings:
1. the cutter comprises a cutter handle 2, a positioning surface 3, a cutter head 4, a screw hole 5, a Y-shaped chip groove 6, a cutter head top end 7, an HFPR pressing plate 8, a Y-shaped chip groove 9, a water outlet hole 10, an HFPR holder 11, a screw hole 12, a VCMT cutter position 13, a water outlet hole 14, a buffer groove 15, a fabrication hole 16, a first cutter blade 17, a second cutter blade 18, a third cutter blade 19 and a fourth cutter blade
The first blade 16 and the second blade 17 are the same type of blades, and the types are selected as follows: HFPR3003 for trenching. The third blade 18 and the fourth blade 19 are the same blades, and the selected types are as follows: VCMT110304, for chamfering.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the figure, the indexable mechanically-clamped combined tool mainly comprises a tool shank 1 and a tool bit 3. In order to improve the rigidity of the cutter, the cutter is integrally manufactured by spring steel bar materials, and the middle of the cutter is not welded. The slot size requirements in the figure are: the major diameter phi 42.6mm and the minor diameter phi 35.4mm, in order to improve the strength of the cutter, the part of the cutter head 3 should be as thick as possible, so the most ideal mode is to make the cutter head into a cylinder shape, and the whole cylinder is used for supporting the cutter blade, and the major diameter phi 42.6mm and the minor diameter 35.4mm are designed to enable the strength to be highest. Specifically, considering chip removal during turning and practical use conditions, the diameter size of the top end 6 of the cutter head is slightly smaller than the diameters of the groove blades 16 and 17, and a certain gap is required to be reserved, so that the large diameter size of the top end 6 of the new cutter head is designed to be phi 42.2 mm, and the small diameter is phi 35.8 mm. As can be seen from fig. 8, the cutter designed by the cutter manufacturer only has one blade, but in order to improve the processing efficiency, 2 slotting cutter blades are arranged on the cutter designed by the invention according to the 180-degree symmetry principle. Wherein, the processing diameter of the outer side tool nose of the first blade 16 is designed according to the major diameter phi 42.6 mm; the inner side tool tip of the second blade 17 is designed according to the small diameter phi of the groove of 35.4mm, thus ensuring that the diameter of the groove is qualified by one-time processing. Survey and drawing HFPR blade size in advance, HFPR sword holder 10 and HFPR clamp plate 7 mill according to blade positioning groove shape and size to guarantee accurate positioning, HFPR sword holder directly makes 5 ~ 7 anterior angles simultaneously. Therefore, when the design is carried out, the tool noses of the 2 blades 16 and 17 pass through the center of the tool holder, and the highest points of the tool noses are on the same plane, so that the two blades participate in turning at the same time, the groove width is formed at one time, and the turning efficiency is improved by 50% compared with that of one blade. In order to hold the blade firmly, the buffer groove 14 is cut out of the cutter head 3 by wire cutting to ensure that the screw can completely and completely press the first blade 16 and the second blade 17. The workpiece is processed by a deep groove, chips are easy to accumulate in the processing process, and in order to ensure smooth chip removal in the processing process, the Y-shaped chip removal groove 5 is designed, and the front section of the Y-shaped chip removal groove 5 simulates the chip removal shape and is made into an R curve to help chip removal; the rear half part is a straight section, which helps to break chips, promotes the chips to be removed in time and avoids the chips from being accumulated to cause the cutter to be broken. In order to help chip removal, the top end of the cutter head is designed to be in a spiral descending state.
Similarly, the workpiece was analyzed for machining figure 2, and outside the grooves, 6 x 20.14 ° chamfers were also machined. In order to improve the processing efficiency, the invention is designed into an indexable combined tool, and the chamfer and the groove are processed together, so that the processing efficiency is improved. According to the invention, on the tool bit 3, according to the requirements of the chamfer angle, a third blade 18 and a fourth blade 19 are selected, and according to the requirements of the chamfer dimension, two VCMT tool positions 12 are arranged on the cross section vertical to the first blade, wherein the VCMT tool positions 12 are in symmetrical dimension. Therefore, the end surface groove and the chamfer are manufactured into a cutter which is formed in one-step machining mode, and the machining efficiency is greatly improved.
In order to prolong the service life of the blades, water outlet holes such as parts 9 and 13 are designed above the 4 blades, so that cooling liquid can be accurately sprayed to a tool nose, and a timely cooling effect is achieved.
In order to improve the strength of the cutter, the cutter handle 1 is partially designed according to the maximum inner hole size of the numerical control lathe cutter holder and is directly arranged in the inner hole of the numerical control lathe cutter holder. In order to ensure firm compression, a positioning surface 2 is milled on the cutter handle 1.
Claims (1)
1. An indexable mechanically-clamped combined cutter comprises a cutter handle (1) and a cutter head (3), it is characterized in that the cutter head (3) is provided with 4 blades, wherein a first blade (16) and a second blade (17) for turning deep grooves are arranged at the front end of the cutter head (3), the other two third blades (18) and the fourth blade (19) for machining chamfers are arranged in the middle of the cutter head (3), the cutter head (3) is cylindrical, the machining diameter of the outer side cutter point of the first blade (16) is phi 42.6mm, the machining diameter of the inner side cutter point of the second blade (17) is phi 35.4mm, a buffer groove (14) is formed in the cutter head (3), the chip removal groove (5) is Y-shaped, the front section of the chip removal groove (5) simulates the shape of chip removal and is in an R curve, the straight section of the chip removal groove (5), the rear half top end (6) of the cutter head is in a spiral descending shape, the cutter rod is a central water outlet structure, and water outlet holes are formed in the upper portions of the 4 blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912369.0U CN213002692U (en) | 2020-05-26 | 2020-05-26 | Indexable mechanically-clamped combined tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912369.0U CN213002692U (en) | 2020-05-26 | 2020-05-26 | Indexable mechanically-clamped combined tool |
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| Publication Number | Publication Date |
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| CN213002692U true CN213002692U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020912369.0U Expired - Fee Related CN213002692U (en) | 2020-05-26 | 2020-05-26 | Indexable mechanically-clamped combined tool |
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| CN (1) | CN213002692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604510A (en) * | 2020-05-26 | 2020-09-01 | 河北师范大学 | Combined tool for machining stainless steel deep groove |
-
2020
- 2020-05-26 CN CN202020912369.0U patent/CN213002692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604510A (en) * | 2020-05-26 | 2020-09-01 | 河北师范大学 | Combined tool for machining stainless steel deep groove |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |