CN217701389U - Lathe tool and lathe - Google Patents

Abstract

The application provides a lathe tool and lathe. The lathe tool includes the handle of a knife, and the axis of handle of a knife extends along first direction, and the lathe tool still includes connecting portion, installation department and blade. Connecting portion one end is connected in the tip of handle of a knife, and the other end extends towards keeping away from the handle of a knife direction along first direction, and the cross-section of connecting portion is less than the cross-section of handle of a knife. Installation department one end is connected in the one end that connecting portion kept away from the handle of a knife, and the other end extends along the second direction, and second direction perpendicular to first direction, installation department are equipped with the mounting groove, and the mounting groove runs through the installation department and keeps away from the one end of connecting portion and form the opening. The blade is detachably arranged in the mounting groove, the center of the blade is positioned on the axis of the tool holder, and the part of the blade extending out of the opening is used for cutting a workpiece. Above-mentioned lathe tool and lathe passes through blade detachably and installs in the installation department, only need change the blade and need not to change whole cutter after the blade is damaged, avoids the tool setting again, has saved tool changing tool setting time, and then the cost is reduced and has promoted machining efficiency and quality.

Description

Lathe tool and lathe

Technical Field

The application relates to the field of metal processing and cutting, in particular to a turning tool and a lathe.

Background

At present, in an inner hole ring groove of a turning workpiece, because the width of the head part of the inner hole ring groove is smaller, the use of a common inner hole groove cutter can not be met, and a special forming groove cutter needs to be designed for processing on a lathe. However, most of the existing forming slot cutters are integral, when parts are machined, cutter heads are easy to wear or break, the whole cutter is scrapped after the cutter heads are worn or broken, the cost is high, in addition, when the cutter is worn or broken, the size of the machined parts after cutter setting is changed can exceed tolerance, and the machining quality is unstable.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a turning tool and a lathe having the same, which can reduce the cost and improve the processing quality and efficiency, and aims to efficiently machine an inner ring groove of a workpiece.

An embodiment of the application provides a lathe tool, including the hilt, the axis of hilt extends along first direction, and the lathe tool still includes connecting portion, installation department and blade. Connecting portion one end is connected in the tip of handle of a knife, and the other end extends towards keeping away from the handle of a knife direction along first direction, and the cross-section of connecting portion is less than the cross-section of handle of a knife. Installation department one end is connected in the one end that connecting portion kept away from the handle of a knife, and the other end extends along the second direction, and second direction perpendicular to first direction, installation department are equipped with the mounting groove, and the mounting groove runs through the installation department and keeps away from the one end of connecting portion and form the opening. The blade is detachably arranged in the mounting groove, the center of the blade is positioned on the axis of the tool holder, and the part of the blade extending out of the opening is used for cutting a workpiece. The installation portion, the connection portion and the tool holder surround to form a avoiding groove, the avoiding groove is used for avoiding a workpiece, and the projection of the connection portion, the installation portion and the blade along the first direction is located in the projection plane of the tool holder along the first direction.

Above-mentioned lathe tool passes through blade detachably and installs in the installation department, only need change the blade and need not to change whole cutter after the blade is damaged, avoids the tool setting again, has saved tool changing tool setting time, and then the cost is reduced and machining efficiency and quality have been promoted, and the position relation of rethread installation department, connecting portion and hilt has realized the purpose that the blade can high-efficiently turn the hole annular of work piece.

In some embodiments, the connecting portion has a first plane extending along the first direction, a second plane and a first engaging surface, the first plane is perpendicular to the second plane, the first engaging surface is formed by extending the outer surface of the handle, the first engaging surface connects the first plane and the second plane, a normal of the first plane is perpendicular to the first direction and the second direction, and a normal of the second plane is parallel to the second direction.

In some embodiments, the mounting portion has a third plane, a fourth plane, a fifth plane and a second engagement surface, the third plane is flush with the first plane, the fourth plane is obliquely connected with the third plane and the second plane, the second engagement surface is formed by extending the first engagement surface, the second engagement surface is connected with the third plane, the fourth plane and the fifth plane, a normal of the fifth plane is parallel to the first direction, and the fifth plane is an end face of the mounting portion along the first direction.

In some embodiments, the end of the handle has a position-avoiding surface connecting the second plane and the outer surface of the handle, and an included angle between the position-avoiding surface and a normal of the second plane is an acute angle.

In some embodiments, the mounting groove is disposed on the third plane, the mounting groove includes a first groove wall, a second groove wall and a groove bottom surface connected to each other, the groove bottom surface is parallel to the third plane, the first groove wall and the second groove wall are disposed on the groove bottom surface in an inclined manner, and the first groove wall and the second groove wall are used for limiting the blade.

In some embodiments, the mounting portion has a receiving groove located at a connection portion of the first groove wall and the second groove wall, and the receiving groove is connected to the mounting groove for receiving the sharp corner of the blade.

In some embodiments, the insert is a parallelogram, and the two opposite sharp corners are provided with cutting edges.

In some embodiments, the junction between the fifth plane, the second engagement surface, and the third plane has a rounded surface.

In some embodiments, the blade is provided with a first through-hole, and the tank bottom surface is provided with a second through-hole, and the lathe tool further comprises a retaining member, and the retaining member can stretch into the first through-hole and the second through-hole that align in order to fix the blade to the installation department.

An embodiment of the present application further provides a lathe, including main shaft and the lathe tool in any of the above-mentioned embodiments, handle of a knife fixed connection is in the main shaft, and the main shaft is used for driving the lathe tool to rotate around the axis of the inner hole on the work piece to make the blade cut the annular groove on the pore wall of inner hole, change new blade to installation department after the blade is damaged. The lathe also achieves the purposes of reducing cost and improving turning efficiency and quality through the turning tool.

Drawings

Fig. 1 is a cross-sectional view of a turning tool and a workpiece in an embodiment of the present application.

Fig. 2 is a perspective view of a turning tool in an embodiment of the present application.

Fig. 3 is a perspective view of the lathe tool of fig. 2 from another perspective.

Fig. 4 is a perspective view of the turning tool of fig. 2 from yet another perspective.

Fig. 5 is a top view of the turning tool of fig. 2.

Fig. 6 is a cross-sectional view of the turning tool of fig. 2 taken along VI-VI.

Fig. 7 is a front view of the turning tool of fig. 2.

Fig. 8 is an exploded view of the turning tool of fig. 2.

Description of the main elements

Turning tool 100

Avoiding groove 100a

Knife handle 10

Clamping surface 10a

Avoiding surface 10b

Connecting part 20

First plane 21

Second plane 22

The first engagement surface 23

Mounting part 30

Mounting groove 30a

The third plane 31

Fourth plane 32

Fifth plane 33

Second engagement surface 34

First tank wall 35

Second groove wall 36

Groove bottom surface 37

Second through hole 37a

Fillet 38

Opening 30b

Storage groove 30c

Blade 40

First through hole 41

Retaining member 50

Workpiece 200

Inner bore 210

Ring groove 200a

Detailed Description

The technical solutions of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is apparent that the embodiments described are only some embodiments of the present application, and not all embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The utility model provides a lathe tool in the embodiment, including the hilt, the axis of hilt extends along the first direction, and the lathe tool still includes connecting portion, installation department and blade. Connecting portion one end is connected in the tip of handle of a knife, and the other end extends towards keeping away from the handle of a knife direction along first direction, and the cross-section of connecting portion is less than the cross-section of handle of a knife. Installation department one end is connected in the one end that connecting portion kept away from the handle of a knife, and the other end extends along the second direction, and second direction perpendicular to first direction, installation department are equipped with the mounting groove, and the mounting groove runs through the installation department and keeps away from the one end of connecting portion and form the opening. The blade is detachably arranged in the mounting groove, the center of the blade is positioned on the axis of the tool holder, and the part of the blade extending out of the opening is used for cutting a workpiece. The installation part, the connection part and the hilt surround to form a avoiding groove, the avoiding groove is used for avoiding a workpiece, and the projection of the connection part, the installation part and the blade along the first direction is located in the projection plane of the hilt along the first direction.

Above-mentioned lathe tool passes through blade detachably and installs in the installation department, only need change the blade and need not to change whole cutter after the blade is damaged, avoids the tool setting again, has saved tool changing tool setting time, and then the cost is reduced and machining efficiency and quality have been promoted, and the position relation of rethread installation department, connecting portion and hilt has realized the purpose that the blade can high-efficiently turn the hole annular of work piece.

An embodiment of the present application further provides a lathe, including main shaft and the lathe tool in any of the above-mentioned embodiments, handle of a knife fixed connection is in the main shaft, and the main shaft is used for driving the lathe tool to rotate around the axis of the inner hole on the work piece to make the blade cut the annular groove on the pore wall of inner hole, change new blade to installation department after the blade is damaged. The lathe achieves the purposes of reducing cost and improving turning efficiency and quality through the turning tool.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 to 8, in one embodiment of the present application, a turning tool 100 is provided for turning a circumferential groove 200a on a wall of an inner bore 210 of a workpiece 200. The turning tool 100 includes a holder 10, a connecting portion 20, a mounting portion 30, and a blade 40. The axis of the handle 10 extends in a first direction X. One end of the connecting portion 20 is connected to one end of the handle 10, and the other end of the connecting portion 20 extends in the first direction X in a direction away from the handle 10. The cross section of the connecting part 20 is smaller than that of the knife handle 10. One end of the mounting portion 30 is connected to an end of the connecting portion 20 away from the handle 10, and the other end of the mounting portion 30 extends along the second direction Y. Wherein the second direction Y is perpendicular to the first direction X. The mounting portion 30 is provided with a mounting groove 30a. The mounting groove 30a penetrates through an end of the mounting portion 30 remote from the connecting portion 20 and forms an opening 30b. The blade 40 is detachably mounted in the mounting groove 30a. The portion of the insert 40 extending out of the opening 30b is used to cut the workpiece 200.

In some embodiments, the center of the installed blade 40 can be located exactly on the axis of the handle 10, so that the stress load of the blade 40 is transferred to the handle 10 to the maximum extent, and the generation of additional torque is avoided, thereby improving the overall structural stability of the turning tool 100.

In some embodiments, as shown in fig. 5, the mounting portion 30, the connecting portion 20 and the handle 10 surround to form a space-avoiding groove 100a. The avoiding groove 100a is used for avoiding the workpiece 200, and avoids the interference between the turning tool 100 and the hole wall of the inner hole 210 during turning.

In some embodiments, as shown in fig. 6 and 7, the projection of the connecting portion 20, the mounting portion 30 and the blade 40 along the first direction X is located in the projection plane of the handle 10 along the first direction X, that is, the lengths of the mounting portion 30 and the blade 40 are smaller than the diameter of the handle 10, so that the volume is reduced, and simultaneously, the stress generated in the mounting portion 30 and the connecting portion 20 by the stress load of the blade 40 is minimized, thereby reducing the possibility of fracture of the connecting portion 20 or the mounting portion 30, and further reducing the cost and improving the processing efficiency. By way of example, the tool holder 10 has a circular cross section, and parallel clamping surfaces 10a are symmetrically arranged along the axis, the normal of the clamping surfaces 10a is perpendicular to the axis of the tool holder 10, the clamping surfaces 10a are used for clamping the tool holder 10 by a lathe spindle, and the clamping surfaces 10a extend along the first direction X and may or may not penetrate through two ends of the tool holder 10.

In some embodiments, the connection portion 20 has a first plane 21, a second plane 22 and a first engagement surface 23 extending along the first direction X. The first plane 21 is perpendicular to the second plane 22 and is connected to the end of the handle 10. The first engagement surface 23 is formed by extending the outer surface of the tool holder 10, i.e. the first engagement surface 23 is a circular arc surface. The first engagement surface 23 connects the first plane 21 and the second plane 22. A normal of the first plane 21 is perpendicular to the first direction X and the second direction Y. The normal of the second plane 22 is parallel to the second direction Y. The first plane 21, the second plane 22 and the first engagement surface 23 are configured to facilitate processing without generating excessive stress concentration.

In some embodiments, as shown in fig. 6, the cross-sectional area of the connecting portion 20 is less than or equal to one quarter of the cross-sectional area of the handle 10 and is connected to one of the quadrants of the circular cross-section of the handle 10 centered about the center of the circle. In other embodiments, the cross-sectional shape of the handle 10 may also be rectangular, such as square, etc., where the outer surface of the handle 10 is a right-angled surface.

In some embodiments, the mounting portion 30 has a third plane 31, a fourth plane 32, a fifth plane 33 and a second engagement surface 34. The third plane 31 is flush with the first plane 21, i.e. the third plane 31 is in the same plane as the first plane 21. The second engagement surface 34 is formed by extending the first engagement surface 23, that is, the second engagement surface 34 is a circular arc surface identical to the outer surface of the hilt 10. The second engagement surface 34 connects the third plane 31, the fourth plane 32, and the fifth plane 33. A normal of the fifth plane 33 is parallel to the first direction X, and the fifth plane 33 is an end surface of the mounting portion 30 along the first direction X. The fourth plane 32 is obliquely connected to the third plane 31 and the second plane 22, respectively. The fourth plane 32 and the fifth plane 33 can form an angle on the third plane 31.

In some embodiments, as shown in fig. 8, the mounting groove 30a is disposed on the third plane 31, and the opening 30b is located at a sharp corner on the third plane 31. The mounting groove 30a includes a first groove wall 35, a second groove wall 36, and a groove bottom surface 37 connected thereto. The slot bottom 37 is parallel to the third plane 31. The first groove wall 35 and the second groove wall 36 are provided obliquely to the groove bottom surface 37. The first groove wall 35 and the second groove wall 36 are used for limiting the blade 40 and preventing the blade 40 from shaking. As an exemplary example, the insert 40 is a parallelogram, such as a rhombus, and two opposite sharp corners of the insert 40 are provided with cutting edges, wherein one of the cutting edges can be turned over to be reused after failure, so as to improve the utilization rate and save the cost. The mounting groove 30a has the same shape as the blade 40. Since the top surface area of the insert 40 is larger than the bottom surface area, when the bottom surface of the insert 40 is mounted to the pocket bottom surface 37, the side walls of the insert 40 have an inclination angle with the vertical direction, and the inclination angles of the first pocket wall 35 and the second pocket wall 36 are the same as the inclination angle of the side walls of the insert 40 to fit the side walls of the insert 40 for more efficient positioning. In addition, the inclination angle of the fourth plane 32 to the side wall of the blade 40 is the same, so that the chips can be discharged and the processing quality can be improved. That is, after the insert 40 is mounted into the mounting groove 30a, the fourth flat surface 32 is flush with one side of the insert 40, the fifth flat surface 33 is flush with the other side of the insert 40, and the second engagement surface 34 is located behind the cutting edge of the insert 40, so that none of the fourth flat surface 32, the fifth flat surface 33, and the second engagement surface 34 interferes with the cutting edge of the insert 40.

In some embodiments, the mounting portion 30 is provided with a receiving groove 30c. The receiving groove 30c is located at the connection point of the first groove wall 35 and the second groove wall 36. The receiving groove 30c communicates with the mounting groove 30a. The receiving groove 30c is used to expand the space at the sharp corner between the first groove wall 35 and the second groove wall 36, so as to receive the sharp corner of the blade 40, thereby preventing the cutting edge of the blade 40 from being worn.

In some embodiments, the end of the handle 10 has a relief surface 10b. The periphery of the avoiding surface 10b is connected with the second plane 22 and the outer surface of the knife handle 10. The angle between the avoiding plane 10b and the normal of the second plane 22 is acute. The avoiding surface 10b is used to expand the space of the avoiding groove 100a, so as to avoid the workpiece 200 more efficiently, and avoid the interference between the turning tool 100 and the hole wall of the inner hole 210 during turning.

In some embodiments, as shown in fig. 3 and 7, the junction between the fifth plane 33, the second engagement surface 34 and the third plane 31 has a rounded surface 38. The rounded corner surface 38 is used to avoid sharp corners from injuring people, thereby improving safety.

In some embodiments, as shown in fig. 8, the insert 40 is provided with a first through hole 41. The groove bottom surface 37 is provided with a second through hole 37a. The turning tool 100 further includes a retaining member 50. The locking member 50 can extend into the aligned first and second through holes 41 and 37a to fix the blade 40 to the mounting portion 30. By way of illustrative example, the locking member 50 is a screw, and the hole walls of the first through hole 41 and the second through hole 37a are threaded. The second through hole 37a penetrates the mounting portion 30 for drilling.

In an embodiment of the present application, a lathe (not shown) is provided, which includes a main spindle and a turning tool 100. The tool holder 10 is fixedly connected to the spindle. The spindle is used to drive the turning tool 100 to rotate around the axis of the inner bore 210 of the workpiece 200, so that the insert 40 cuts the annular groove 200a in the wall of the inner bore 210. During cutting, the main shaft gradually drives the turning tool 100 to feed along the inner hole 210 in the radial direction until the feed amount reaches a preset value so as to finish turning. When the blade 40 is damaged, only the locking member 50 and the old blade 40 need to be detached, and a new blade 40 is replaced to the mounting portion 30, so that the tool holder 10 does not need to be detached from the spindle, tool setting is not needed, the machining dimension is prevented from exceeding the tolerance, and the machining quality is improved.

In summary, the turning tool 100 is detachably mounted on the mounting portion 30 through the blade 40, and only the blade 40 needs to be replaced after the blade 40 is damaged without replacing the whole tool, so that re-tool setting is avoided, tool changing and tool setting time is saved, cost is reduced, machining efficiency and quality are improved, and the purpose that the blade 40 can efficiently turn the annular groove 200a of the inner hole 210 on the workpiece 200 is achieved through the positions and geometric relations of the mounting portion 30, the connecting portion 20 and the tool holder 10. The lathe also achieves the purposes of reducing the cost and improving the turning efficiency and quality through the turning tool 100.

In addition, those skilled in the art should recognize that the above embodiments are provided for illustrative purposes only and are not intended to limit the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the true spirit and scope of the present application.

Claims (10)

1. A turning tool comprising a tool holder, an axis of the tool holder extending in a first direction, the turning tool further comprising:

one end of the connecting part is connected to the end part of the cutter handle, the other end of the connecting part extends in the direction away from the cutter handle along the first direction, and the section of the connecting part is smaller than that of the cutter handle;

the mounting part is provided with a mounting groove, and the mounting groove penetrates through one end, far away from the connecting part, of the mounting part and forms an opening; and

the blade is detachably arranged in the mounting groove, the center of the blade is positioned on the axis of the tool holder, and the part of the blade, which extends out of the opening, is used for cutting a workpiece;

the installation department connecting portion with the hilt is around forming and is kept away the groove, keep away the groove and be used for keeping away the position the work piece, connecting portion the installation department with the blade is followed the projection of first direction is located the hilt is followed the projection of first direction is in.

2. The turning tool of claim 1, wherein: the connecting portion is provided with a first plane, a second plane and a first connecting surface, the first plane is perpendicularly connected with the second plane, the first connecting surface is formed by extending the outer surface of the tool holder, the first connecting surface is connected with the first plane and the second plane, the normal line of the first plane is perpendicular to the first direction and the second direction, and the normal line of the second plane is parallel to the second direction.

3. The turning tool of claim 2, wherein: the installation department has third plane, fourth plane, fifth plane and second and links up the face, the third plane with first plane parallel and level is connected, the fourth plane with the third plane reaches the second plane slope is connected, the second links up the face by first links up the face and extends and form, the second links up the face and connects the third plane the fourth plane reaches the fifth plane, the normal of fifth plane is on a parallel with the first direction, the fifth plane is the installation department is followed the terminal surface of first direction.

4. The turning tool of claim 2, wherein: the end part of the knife handle is provided with a position avoiding surface, the position avoiding surface is connected with the second plane and the outer surface of the knife handle, and an included angle between the position avoiding surface and the normal of the second plane is an acute angle.

5. The turning tool of claim 3, wherein: the mounting groove is arranged on the third plane and comprises a first groove wall, a second groove wall and a groove bottom surface which are connected, the groove bottom surface is parallel to the third plane, the first groove wall and the second groove wall are obliquely arranged on the groove bottom surface, and the first groove wall and the second groove wall are used for limiting the blade.

6. The turning tool of claim 5, wherein: the mounting portion is provided with an accommodating groove, the accommodating groove is located at the joint of the first groove wall and the second groove wall, and the accommodating groove is communicated with the mounting groove and used for accommodating the sharp corners of the blade.

7. The turning tool of claim 1, wherein: the blade is parallelogram, and two relative closed angle department all are equipped with the cutting edge.

8. The turning tool of claim 3, wherein: the junction between the fifth plane, the second engagement surface and the third plane has a rounded corner surface.

9. The turning tool of claim 5, wherein: the blade is equipped with first through-hole, the tank bottom surface is equipped with the second through-hole, the lathe tool still includes the retaining member, the retaining member can stretch into the alignment first through-hole reaches the second through-hole is in order to fix the blade extremely on the installation department.

10. A lathe, characterized by: the turning tool comprises a main shaft and the turning tool according to any one of claims 1 to 9, wherein the tool holder is fixedly connected to the main shaft, and the main shaft is used for driving the turning tool to rotate around the axis of an inner hole in the workpiece, so that the blade cuts an annular groove in the hole wall of the inner hole until the blade is replaced by a new blade to the mounting part after being damaged.

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