CN222569310U - Special outer diameter back cutter for lathe - Google Patents
Special outer diameter back cutter for lathe Download PDFInfo
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- CN222569310U CN222569310U CN202420893887.0U CN202420893887U CN222569310U CN 222569310 U CN222569310 U CN 222569310U CN 202420893887 U CN202420893887 U CN 202420893887U CN 222569310 U CN222569310 U CN 222569310U
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Abstract
一种车床专用外径背切刀包括：刀体，设置在刀体使用端的定位座舱，用于固定刀片的螺钉；其中，刀体为阶梯形；定位座舱的左端为向下凹的阶梯形凹槽，凹槽中部设有一长方形凸台，凸台中间是固定刀片的螺纹孔，其顶端左右两侧，带有第一空刀槽和第二空刀槽，且第一空刀槽和第二空刀槽为半圆形，为防止组装的刀片与刀体之间的干涉，刀片在中间是通过螺钉拧紧在刀体的定位座舱上。本实用新型在长期使用中不仅不易变形，降低了加工成本；而且，在加工难加工强断续材质时，提高了加工产品的质量和工作效率；同时，还提高了刀片的刀具的使用寿命；刀体的刚性就比选用标准4mm槽刀刚性大了超过1倍，从而，达到降低刀具成本的目的。
A special outer diameter back cutter for lathes comprises: a cutter body, a positioning cabin arranged at the use end of the cutter body, and a screw for fixing a blade; wherein the cutter body is stepped; the left end of the positioning cabin is a stepped groove concave downward, a rectangular boss is arranged in the middle of the groove, a threaded hole for fixing the blade is arranged in the middle of the boss, and the left and right sides of the top thereof are provided with a first empty cutter groove and a second empty cutter groove, and the first empty cutter groove and the second empty cutter groove are semicircular, and in order to prevent interference between the assembled blade and the cutter body, the blade is tightened on the positioning cabin of the cutter body by screws in the middle. The utility model is not only not easy to deform in long-term use, thus reducing the processing cost; moreover, when processing difficult-to-process strong intermittent materials, it improves the quality of the processed products and the work efficiency; at the same time, it also improves the service life of the cutter of the blade; the rigidity of the cutter body is more than 1 times greater than that of the standard 4mm slot cutter, thereby achieving the purpose of reducing the cost of the cutter.
Description
Technical Field
The utility model belongs to the field of machine manufacturing, and particularly relates to a lathe outer diameter back cutter.
Background
At present, in the outer diameter back-cut circle processing of the middle shell, a lathe device is generally used, a processed position is positioned at the lower part of the outer circle of the large-diameter blank, and the width of the processed position is more than or equal to 9mm and less than or equal to 15mm.
In the existing market, only standard back cutters can be selected for processing, and most of the standard back cutters are integrated mechanically-clamped or split cutter plate type grooving cutters and cutting cutters, but the standard back cutters have large cutting overhang quantity, but have the defects that the V-shaped groove is generally selected for positioning, the rigidity of a cutter body depends on the width dimension of a selected cutter blade, the back cutting processing quantity of a casting is generally only 2mm, the normal back cutting processing quantity is only 4mm, the thickness of the corresponding groove cutter clamping position is only smaller than 4mm, the rigidity is insufficient, and when the cutter body is subjected to difficult-processing strong intermittent materials, the cutter body is generally deformed after thousands of shells are processed, so that the cutter body is scrapped. In addition, only two cutting edges per blade can be used, and slot blades are relatively expensive.
Disclosure of utility model
The utility model aims to provide an external diameter back cutter special for a lathe, which aims to solve the technical problems that the existing grooving cutter and cutting cutter positioning grooves are easy to deform, the rigidity of a cutter body is insufficient, and particularly the cutter body is easy to scrap and the processing cost is high when a strong intermittent material is difficult to process.
In order to achieve the purpose, the special outer diameter back cutter for the lathe has the following specific technical scheme:
The special outer diameter back cutter for the lathe comprises a cutter body, a positioning cabin and a screw, wherein the positioning cabin is arranged at the use end of the cutter body and is used for fixing a cutter blade, the cutter body is in a stepped shape, the left end of the positioning cabin is a downward concave stepped groove, a rectangular boss is arranged in the middle of the groove, a threaded hole for fixing the cutter blade is arranged in the middle of the boss, a first empty cutter groove and a second empty cutter groove are formed in the left side and the right side of the top end of the boss, the first empty cutter groove and the second empty cutter groove are semicircular, and in order to prevent interference between an assembled cutter blade and the cutter body, the cutter blade is screwed on the positioning cabin of the cutter body through the screw in the middle.
The fixed end of the cutter body is a square cutter bar with the diameter of 32mm multiplied by 32mm, and is formed by welding or integrally forming and is formed at one end of the stepped cutter body.
Furthermore, the positioning cabin is a concave three-stage stepped rectangular groove, the thickness of the stepped step where the positioning cabin is located can be designed according to the size of the interference position to be processed, and the overhanging amount can be specifically adjusted according to the depth of the interference position to be processed.
Further, the blade is provided with a stepped groove matched with a boss in the positioning cabin of the blade body, and when the blade is mounted on the blade body, the blade is matched with the positioning cabin of the blade body and is locked by the screw through the eccentric screw hole, so that the blade is tightly adhered to the positioning surface of the positioning cabin.
Further, the blade is a batch press formed, and the blade is designed as a rectangular blade with a thickness of 4mm to 6mm.
The special outer diameter back cutter for the lathe has the following advantages:
The back cutting tool has the advantages that the rigidity of the tool body is higher in the back cutting process of the machined position, the width of the back cutting tool is larger than or equal to 9mm and smaller than or equal to 15mm, the tool body is not easy to deform in long-term use, the machining cost is greatly reduced, the quality and the working efficiency of machined products are improved when the material with high intermittent strength is machined, the service life of the tool body is prolonged, for example, the front end of the tool body can be designed to be 9mm thick and the tool body can be designed to be a rectangular tool body with the thickness of 4mm under the condition that the back cutting machining quantity of castings is only 2mm and the interference range is 10mm, and therefore the rigidity of the tool body is more than 1 time than that of a standard 4mm groove tool body, and the tool cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
fig. 3 is a schematic diagram of the structure of the discrete components of the present utility model.
The figure indicates:
1. a cutter body; 10, a thick end of a cutter body, 2, a transition end of the cutter body, 3, a thin end of the cutter body, 4, a positioning cabin, 5, a blade, 6, a screw, 7, a first empty cutter groove and 8, a second empty cutter groove.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, a lathe-specific outer diameter back cutter according to the present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the utility model comprises a cutter body 1, a positioning cabin 4 arranged at the use end of the cutter body 1 (namely, at the left end of the cutter body 1) and used for fixing a screw 6 of a cutter blade 5, wherein the cutter body 1 is in a stepped shape (namely, one end connected with a lathe is a thick end 10 of the cutter body 1, one end connected with the cutter blade 5 is a cutter body thin end 3, the middle is a cutter body transition end 2 connected with the thick end and the thin end), the left end of the positioning cabin 4 (namely, the cutter body thin end 3) is a downward concave stepped groove, a rectangular boss is arranged in the middle of the groove, a threaded hole for fixing the cutter blade 5 is arranged in the middle of the boss, the left side and the right side of the top end of the positioning cabin are provided with a first empty cutter groove 7 and a second empty cutter groove 8, the first empty cutter groove 7 and the second empty cutter groove 8 are semicircular, and in order to prevent interference between the assembled cutter blade 5 and the cutter body 1, and the cutter blade 5 is screwed on the positioning cabin 4 of the cutter body 1 through the screw 6 in the middle. The positioning capsule 4 is intended to mount a blade 5.
The shape of the cutter body 1 is formed by welding or integrally forming.
The back cutting machining amount of the casting is only 2mm, under the condition that the interference range is 10mm, the front end of the cutter body 1 (namely the cutter body thin end 3) can be designed to be 9mm thick according to the size of the machined interference position, the cutter blade 5 is designed to be a rectangular cutter blade 5 with the thickness of 4mm, and the rigidity of the cutter body 1 is more than 1 time than that of a standard 4mm groove cutter, so that the aim of reducing the cutter cost is fulfilled.
The positioning cabin 4 is a concave three-stage stepped rectangular groove, a cuboid boss is arranged in the middle of the positioning cabin 4, the boss has two functions, the first function is to prevent the blade 5 from being misplaced, the second function is to increase the depth of the screw locking blade 5, two sides of the top end of the right part of the stepped rectangular groove are provided with a first hollow groove 7 and a second hollow groove 8 which are concave downwards, and the first hollow groove 7 and the second hollow groove 8 are semicircular concave hollow grooves which are arranged on the outer side of the thin end 3 of the cutter body.
The fixed end of the cutter body 1 is a square cutter bar with the length of 32mm multiplied by 32mm, is connected to one end of the cutter body transition end 2 in a welding or integrated forming mode, and is formed at one end of the stepped cutter body 1.
The thickness of the step of the stepped cutter body 1 where the positioning cabin 4 is positioned can be designed according to the size of the interference position to be processed, and the overhanging amount of the step of the positioning cabin 4 can be specifically adjusted according to the depth of the interference position to be processed.
The blade 5 is provided with a stepped groove matched with a boss in the positioning cabin 4 of the blade body 1, and is provided with a stepped directional groove matched with a special directional boss, wherein when the blade 5 is mounted on the blade body 1, the blade 5 is matched with the positioning cabin 4 of the blade body 1, and a screw 6 is locked through an eccentric screw hole, so that the positioning surface of the positioning cabin 4 is tightly adhered to the positioning surface.
The blades 5 are formed by batch compression, and each blade 5 is provided with four cutting edges, so that the economy is greatly improved (the traditional standard back cutter blade can only use 2 cutting edges). A groove is designed on the positioning surface of the rectangular blade 5, and a corresponding boss is designed on the matching position of the blade body 1, so that the depth of thread locking during assembly can be increased, the locking force of the blade 5 is greatly improved, the cutting is more stable, the service life of a cutter is prolonged, and the cost of processing the cutter is reduced. Can be used with the mirror image cutter body 1 (the cutter of the embodiment can use two diagonal cutting edges of the cutter blade 5), and the other 2 cutting edges are needed to be used on the mirror image cutter body 1, namely the reverse cutter body 1, so as to improve the utilization rate of the cutter blade 5. After the service life of the cutter, only the blade 5 needs to be replaced, and the cutter body 1 can be used all the time.
The blade 5 is designed to: 1mm,2mm,3mm,3.5mm,4mm,5mm,6mm,7mm,7.5mm,8mm; of these, rectangular blades 5 of 4mm to 6mm thickness are most preferred.
In the processing and using process, only one cutting edge at the forefront end participates in cutting, after the cutting edge participating in cutting reaches the service life, the tool provided with the blade 5 is used for rotating the blade 5 to the diagonally unused cutting edge, after the two cutting edges are used, the blade 5 is replaced by a new blade 5, and the two remaining cutting edges on the blade 5 can be arranged on the mirror image blade body 1 of the blade body 1 for use, namely, the tool is used in a reverse blade body, so that the utilization rate of the blade 5 is improved.
The blade and the screw are in the prior art, and the unexplained technology is in the prior art, so that the description is omitted.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The special outer diameter back cutter for the lathe comprises a cutter body, a positioning cabin arranged at the using end of the cutter body and used for fixing a screw of a cutter blade, and is characterized in that the cutter body is in a stepped shape, the left end of the positioning cabin is a downward concave stepped groove, a rectangular boss is arranged in the middle of the groove, a threaded hole for fixing the cutter blade is arranged in the middle of the boss, a first empty cutter groove and a second empty cutter groove are formed in the left side and the right side of the top end of the boss, the first empty cutter groove and the second empty cutter groove are semicircular, and the cutter blade is screwed on the positioning cabin of the cutter body through the screw in the middle.
2. The lathe-dedicated outer diameter back cutter according to claim 1, wherein the fixed end of the cutter body is a square cutter bar of 32mm x 32mm, is formed by welding or integrally forming, and is formed at one end of the stepped cutter body.
3. The special outer diameter back cutter for the lathe according to claim 1, wherein the positioning cabin is a concave three-stage stepped rectangular groove, the thickness of the stepped step where the positioning cabin is located can be designed according to the size of the interference position to be processed, and the overhanging amount can be specifically adjusted according to the depth of the interference position to be processed.
4. The special outer diameter back cutter for lathes as claimed in claim 1, wherein the blade is provided with a stepped groove matched with a boss in a positioning cabin of the cutter body, and when the blade is mounted on the cutter body, the blade is matched with the positioning cabin of the cutter body and locked with a screw through an eccentric screw hole so as to be tightly adhered to a positioning surface of the positioning cabin.
5. The lathe-specific outer diameter back cutter according to claim 1 or 4, wherein the blades are mass press formed, and the blades are designed as rectangular blades of 4mm to 6mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420893887.0U CN222569310U (en) | 2024-04-28 | 2024-04-28 | Special outer diameter back cutter for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420893887.0U CN222569310U (en) | 2024-04-28 | 2024-04-28 | Special outer diameter back cutter for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222569310U true CN222569310U (en) | 2025-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420893887.0U Active CN222569310U (en) | 2024-04-28 | 2024-04-28 | Special outer diameter back cutter for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222569310U (en) |
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2024
- 2024-04-28 CN CN202420893887.0U patent/CN222569310U/en active Active
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