CN217018661U

CN217018661U - Double-head turning tool

Info

Publication number: CN217018661U
Application number: CN202220895493.XU
Authority: CN
Inventors: 张小燕; 李朦特; 陈燕楠
Original assignee: Hangzhou Chai Tools Co ltd
Current assignee: Hangzhou Chai Tools Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-22
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to the technical field of machining, in particular to a double-headed lathe tool, which comprises a tool body, a tool holder and a tool bit, wherein an elastic groove is arranged on the tool body, a tool withdrawal groove is arranged on the tool body, the tool withdrawal groove is close to the tool holder and is communicated with the elastic groove, the tool body comprises a first side tool and a second side tool, the two tool bits are arranged and are correspondingly fixed on the first side tool and the second side tool, one end of the tool body, which is far away from the tool holder, is provided with an adjusting component for changing the distance between the first side tool and the second side tool, the adjusting component comprises an adjusting screw which is in threaded connection with the elastic groove, the adjusting screw is in threaded connection with the elastic groove, the tail end of the adjusting screw is in a conical surface arrangement, and the conical surface of the tail end of the adjusting screw is abutted against the side wall of the elastic groove; the distance between the two cutter heads can be changed more easily by rotating the adjusting screw, and the diameter precision of the two cutter points is higher, so that the diameter precision of the two cutter points in the adjusting process is improved.

Description

Double-head turning tool

Technical Field

The application relates to the technical field of machining, in particular to a double-end turning tool.

Background

A turning tool is a tool for turning machining having a cutting portion. Usually, a boring cutter is used for processing inner holes, expanding holes, profiling and the like in the cutting process. At present, a double-head turning tool is provided, that is, two symmetrical tool bits are arranged at one end of a tool body far away from a tool handle, and the tool handle is clamped to rotate by taking the axial lead of the tool body as an axis, so that the operations of inner hole machining, hole expanding, profiling and the like are realized.

And in carrying out the hole course of working, when adjusting two knife tip diameters and changing hole processing cutting diameter, need lift off two tool bits and readjust the installation in order to change two knife tip diameters, but when the diameter that needs adjust is less, can hardly accomplish the required diameter of accurate two knife tips of adjusting to through lifting off the operation process of installing behind the tool bit readjustment.

SUMMERY OF THE UTILITY MODEL

In order to improve two knife tip diameter precision in the accommodation process, this application provides a double-end lathe tool. The application provides a pair of double-end lathe tool adopts following technical scheme: a double-head turning tool comprises a tool body, a tool handle and a tool bit, wherein the tool body is provided with an elastic groove which penetrates through the tool body along the radial direction of the tool body, the extending direction of the elastic groove is arranged along the length direction of the cutter body, the cutter body is provided with a tool withdrawal groove, the tool withdrawal groove is close to the tool holder and communicated with the elastic groove, the extending direction of the tool withdrawal groove is parallel to the direction of the elastic groove penetrating through the tool body, the cutter body comprises first side cutters and second side cutters, the first side cutters are arranged on two sides of the elastic groove, the cutter head is provided with two cutters which are correspondingly fixed on the first side cutters and the second side cutters, one end of the knife body, which is far away from the knife handle, is provided with an adjusting component for changing the distance between the first side knife and the second side knife, the adjusting component comprises an adjusting screw which is in threaded connection with the elastic groove, the adjusting screw is in threaded connection with the elastic groove, and the tail end of the adjusting screw is arranged in a conical surface, and the conical surface of the tail end of the adjusting screw is abutted against the side wall of the elastic groove.

Through adopting above-mentioned technical scheme, when two knife tip diameters need to be adjusted, the staff rotates adjusting screw and makes adjusting screw's tail end conical surface butt in elasticity groove lateral wall, keep away from the distance of handle of a knife one end through changing first side sword and second side sword, and then the diameter that makes the knife tip of two tool bits changes, and then need not dismantle two tool bits, and because adjusting screw threaded connection is in elasticity inslot, consequently rotate adjusting screw and change the distance between two tool bits more easily, also the diameter precision that can make two knife tips is higher, thereby improve two knife tip diameter precisions in the accommodation process.

In some embodiments, the axial direction of the adjusting screw is parallel to the length direction of the cutter body, the axial direction of the positioning pin is parallel to the radial direction of the cutter body, and the positioning pin is embedded between the elastic grooves.

By adopting the technical scheme, the positioning pin is firstly placed into the cutter body when the cutter is used, then the adjusting screw is screwed to be tightened with the positioning pin through threaded fit, and the cutter body is opened by the taper position of the tail end of the adjusting screw due to the fact that the positioning pin is not moved and the adjusting screw is screwed downwards, so that radial adjustment change is formed.

In some embodiments, the adjusting screw is provided with a caulking groove along the axial direction thereof for placing the rubber strip, and the opening of the caulking groove faces to the side wall of the thread groove.

Through adopting above-mentioned technical scheme, when twisting adjusting screw, the adhesive tape can form closely cooperating with the screw thread of locating pin the inside owing to be deformable, prevents that the screw thread is not hard up, reinforcing steadiness.

In some embodiments, one end of the positioning pin, which is far away from the adjusting screw, is arranged in a plane, and the side wall of the groove, which is far away from the adjusting screw, of the positioning pin is provided with a unsealing groove.

By adopting the technical scheme, when the positioning pin needs to be detached, a worker can use a tool or manually stir the unsealing groove, so that the cutter body can be conveniently pulled out of the positioning pin.

In some embodiments, the unsealing grooves are arranged in a triangle, one vertex angle of the unsealing grooves is closer to the axis of the positioning pin than the other vertex angles, the center line of the thread groove is bisected at the vertex angle, and the vertex angle faces to the tool withdrawal groove.

Through adopting above-mentioned technical scheme, when the staff inserts the locating pin and locates in the cutter body, will unseal the groove and be close to the apex angle alignment tool withdrawal groove that is close to the locating pin axial lead to make the thread groove axial lead direction of locating pin be on a parallel with cutter body length direction, and then make things convenient for the staff to aim at the thread groove with adjusting screw, and carry out threaded connection.

In some embodiments, a tensioning screw is further included, the tensioning screw extending through the first side blade and the second side blade, the tensioning screw being threadably connected to the first side blade and the second side blade.

Through adopting above-mentioned technical scheme, before the staff adjusted two knife tip diameters, run through straining screw in first side sword and second side sword to rotate straining screw and fix first side sword and second side sword, thereby make first side sword and second side sword be used for the elasticity of outwards opening, also ensure the rigidity of first side sword and second side sword in the use.

In some embodiments, an internal cooling system is disposed in the cutter body, two guide grooves are formed in the cutter body, an internal through groove is formed in the cutter handle, one end of each guide groove is communicated with the internal through groove, and the other end of each guide groove faces the corresponding cutter head.

Through adopting above-mentioned technical scheme, when double-end lathe tool during operation, the staff can be through to leading to the inslot pouring into the coolant liquid, then in the coolant liquid flows into the guiding groove, the coolant liquid is spout from the position of tool bit through the guiding groove to still rotatory along with the rotation of cutter body, and then make the coolant liquid spray the cutting point at the knife tip, thereby realize the cooling in double-end lathe tool working process.

In summary, the present application has the following beneficial effects:

1. the distance between the two cutter heads can be changed more easily by rotating the adjusting screw, and the diameter precision of the two cutter heads is higher, so that the diameter precision of the two cutter heads in the adjusting process is improved.

2. Through to inside logical groove injection cooling liquid, then the cooling liquid flows into in the guiding groove, and the cooling liquid is spout from the position of tool bit through the guiding groove to still rotate along with the rotation of cutter body, and then the cooling liquid sprays the cutting point at the knife tip, thereby realizes the cooling in double-end lathe tool working process.

Drawings

Fig. 1 is a schematic view of a first-angle overall structure in an embodiment of the present application.

Fig. 2 is a second angle overall structure diagram in the embodiment of the present application.

Fig. 3 is a schematic diagram of a third angle overall structure in the embodiment of the present application.

Fig. 4 is a sectional view of the structure in the embodiment of the present application.

FIG. 5 is a schematic view of the connection of the set pin and the set screw in the embodiment of the present application.

Fig. 6 is an internal schematic view of an internal cooling system in an embodiment of the present application.

In the figure, 100, a cutter body; 110. a first side cutter; 120. a second side cutter; 130. an elastic groove; 140. a tool withdrawal groove; 150. a through groove; 160. a guide groove; 170. a cutter groove; 180. an adjustment groove; 190. a card slot; 200. a hilt; 210. an inner through groove; 300. a cutter head; 410. an adjusting screw; 411. a conical surface; 412. caulking grooves; 420. positioning pins; 421. a thread groove; 422. opening the sealing groove; 430. the screw is tightened.

Detailed Description

The present application is described in further detail below with reference to figures 1-6. The application discloses double-end lathe tool.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Referring to fig. 1 and 2, a double-headed lathe tool includes a tool body 100, a holder 200, and a tool bit 300, wherein the holder 200 is fixedly coupled to one end of the tool body 100 and coaxially disposed. The other end of the cutter body 100 is provided with two cutter grooves 170, the two cutter grooves 170 extend along the radial direction of the cutter body 100, and the two cutter grooves 170 are symmetrically arranged around the axis of the cutter body 100. Two cutter heads 300 are provided, two cutter heads 300 are correspondingly provided in the corresponding cutter grooves 170, and the cutting tips of the two cutter heads 300 are both arranged in a direction away from the cutter body 100. The connection line of the tips of the two cutting tips 300 is parallel to the diameter line of the cutter body 100. And an inner cooling system for cooling the cutter head 300 is provided in the cutter body 100 and the tool holder 200.

Referring to fig. 2 and 3, the cutter body 100 is provided with an elastic groove 130 along an axial line thereof, and the elastic groove 130 penetrates the cutter body 100 in a radial direction of the cutter body 100. The cutter body 100 is provided with a tool withdrawal groove 140, the length direction of the tool withdrawal groove 140 is parallel to the radial direction of the cutter body 100, the tool withdrawal groove 140 is positioned at the position of the cutter body 100 close to the cutter handle 200, and the length direction of the tool withdrawal groove 140 is communicated with the elastic groove 130. The elastic groove 130 divides the cutter body 100 into a first side cutter 110 and a second side cutter 120, the first side cutter 110 and the second side cutter 120 are arranged in a mirror image manner around the axis of the cutter body 100, and the two cutter heads 300 are correspondingly arranged on the first side cutter 110 and the second side cutter 120. The cutter body 100 is further provided with an adjusting assembly for changing the distance between the first side cutter 110 and the second side cutter 120.

Referring to fig. 3 and 4, the adjusting assembly includes a tightening screw 430, the cutter body 100 is provided with a through slot 150 along a radial direction thereof, an axial direction of the through slot 150 is perpendicular to an axial direction of the elastic slot 130, the through slot 150 penetrates the first side blade 110 and the second side blade 120, respectively, and the tightening screw 430 is inserted into the through slot 150 from one side of the first side blade 110 and is in threaded connection with the second side blade 120, so as to enhance the connectivity between the first side blade 110 and the second side blade 120.

Referring to fig. 4 and 5, the adjusting assembly further includes a positioning pin 420, the cutter body 100 is provided with a clamping groove 190, the clamping groove 190 is communicated with the elastic groove 130, an axial line of the clamping groove 190 is perpendicular to an axial line of the cutter body 100, and the clamping groove 190 is closer to the cutter head 300 relative to the through groove 150. The positioning pin 420 is inserted into the locking groove 190, and a thread groove 421 is formed in the middle of the positioning pin 420 along the radial direction thereof.

Referring to fig. 4 and 5, one end of the positioning pin 420 facing away from the cutter body 100 is disposed in a plane, and a side wall of an end of the positioning pin 420 far away from the cutter body 100 is provided with a triangular unsealing groove 422. One vertex angle of the unsealing groove 422 is closer to the axial line of the positioning pin 420 than the other vertex angles, and the central line of the thread groove 421 bisects the vertex angle and the vertex angle faces the relief groove 140 when the positioning pin 420 is inserted into the clamping groove 190.

Referring to fig. 4 and 5, the adjusting assembly further includes an adjusting screw 410, an end of the cutter body 100 far away from the handle 200 is provided with an adjusting groove 180, and the adjusting groove 180 extends from the end of the cutter body 100 to the direction of the slot 190 and is vertically communicated with the slot 190. The tail end of the adjusting screw 410 is disposed in a tapered surface 411, and when the adjusting screw 410 is inserted into the adjusting groove 180, the tail end of the adjusting screw 410 abuts against the sidewall of the elastic groove 130. And when the positioning pin 420 is inserted into the catching groove 190, the screw groove 421 is aligned with the adjustment groove 180, and the adjustment screw 410 is screwed into the screw groove 421.

When the adjusting screw 410 is screwed in the screw groove 421, the tail end of the adjusting screw 410 is completely embedded in the adjusting groove 180, and a gap exists between the tail end of the adjusting screw 410 and the positioning pin 420, so that the first side blade 110 and the second side blade 120 can be gradually separated as the adjusting screw 410 approaches the positioning pin 420.

Referring to fig. 4 and 5, the adjusting screw 410 is provided with a caulking groove 412 for disposing the rubber strip along the axial direction thereof, and the opening of the caulking groove 412 faces the side wall of the thread groove 421. When the adjusting screw 410 is inserted in front of the locking groove 190, an adhesive tape is disposed in the insertion groove 412, so that the adjusting screw 410 and the threaded groove 421 are tightly fitted with each other along with the engagement therebetween.

Referring to fig. 6, the internal cooling system includes a guide slot 160 formed in the first side blade 110 and the second side blade 120, and an internal channel 210 formed in the handle 200. One end of the guide groove 160 is connected to the inner groove 210 via the connection point of the holder 200 and the cutter body 100. The other end of the guide groove 160 is communicated with the cutter groove 170 through the side wall of the cutter groove 170, and the liquid outlet direction of the guide groove 160 is aligned with the cutter head 300. The end of the inner through groove 210 far away from the cutter body 100 is opened by the end of the cutter handle 200.

The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A double-end lathe tool comprises a tool body (100), a tool handle (200) and a tool bit (300), and is characterized in that: the elastic knife comprises a knife body (100), wherein the knife body (100) is provided with an elastic groove (130), the elastic groove (130) is arranged in a penetrating manner along the radial direction of the knife body (100), the extending direction of the elastic groove (130) is arranged along the length direction of the knife body (100), the knife withdrawing groove (140) is arranged on the knife body (100), the knife withdrawing groove (140) is close to a knife handle (200) and communicated with the elastic groove (130), the extending direction of the knife withdrawing groove (140) is parallel to the direction of the elastic groove (130) penetrating through the knife body (100), the knife body (100) comprises a first side knife (110) and a second side knife (120) which are arranged on two sides of the elastic groove (130), the knife head (300) is provided with two adjusting components which are correspondingly fixed on the first side knife (110) and the second side knife (120), one end, far away from the knife handle (200), of the knife body (100) is provided with an adjusting component which is used for changing the distance between the first side knife (110) and the second side knife (120), the adjusting component comprises an adjusting screw (410) which is in threaded connection with the elastic groove (130), the adjusting screw (410) is in threaded connection with the elastic groove (130), the tail end of the adjusting screw (410) is arranged in a conical surface (411), and the conical surface (411) at the tail end of the adjusting screw (410) abuts against the side wall of the elastic groove (130).

2. A double-headed lathe tool according to claim 1, characterized in that: the adjusting assembly comprises a positioning pin (420), the positioning pin (420) is inserted into the cutter body (100), a thread groove (421) is formed in the positioning pin (420), and the adjusting screw (410) is in threaded connection with the thread groove (421).

3. A double-headed lathe tool according to claim 2, characterized in that: the adjusting screw (410) is axially parallel to the length direction of the cutter body (100), the positioning pin (420) is axially parallel to the radial direction of the cutter body (100), and the positioning pin (420) is embedded between the elastic grooves (130).

4. A double-headed lathe tool according to claim 3, characterized in that: the adjusting screw (410) is provided with a caulking groove (412) for placing a rubber strip along the axial direction, and the opening of the caulking groove (412) faces to the side wall of the thread groove (421).

5. A double-headed lathe tool according to claim 3, wherein: one end, far away from the adjusting screw (410), of the positioning pin (420) is arranged in a plane, and a unsealing groove (422) is formed in the side wall, far away from the adjusting screw (410), of the positioning pin (420).

6. The double-headed lathe tool according to claim 5, wherein: the opening and sealing grooves (422) are arranged in a triangular shape, one vertex angle of the opening and sealing grooves (422) is closer to the axial lead of the positioning pin (420) relative to other vertex angles, the central line of the thread groove (421) is equally divided at the vertex angle, and the vertex angle faces to the tool withdrawal groove (140).

7. The double-headed lathe tool according to claim 2, wherein: the cutting tool further comprises a tensioning screw (430), wherein the tensioning screw (430) penetrates through the first side blade (110) and the second side blade (120), and the tensioning screw (430) is in threaded connection with the first side blade (110) and the second side blade (120).

8. A double-headed lathe tool according to claim 1, characterized in that: an inner cooling system is arranged in the cutter body (100), two guide grooves (160) are formed in the cutter body (100), an inner through groove (210) is formed in the cutter handle (200), one end of each guide groove (160) is communicated with the inner through groove (210), and the other end of each guide groove (160) faces towards the corresponding cutter head (300).