CN214349831U

CN214349831U - Tool collet and tool rack assembly adopting same

Info

Publication number: CN214349831U
Application number: CN202120231146.2U
Authority: CN
Inventors: 何明康
Original assignee: Shanqian Enterprise Co ltd
Current assignee: Shanqian Enterprise Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-08
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a cutter collet chuck and adopt cutter frame subassembly of this cutter collet chuck, the cutter collet chuck includes the collet chuck body, the center of collet chuck body is equipped with cutter clamp hole, the collet chuck body is equipped with a plurality of internal cutting grooves, internal cutting groove and cutter clamp hole intercommunication, be equipped with a first and second apopore on the front portion of collet chuck body at least, the front end leanin of first apopore is in the axis of collet chuck body, the second apopore is parallel with the axis of collet chuck body, the rear end of first and second apopore communicates with the internal cutting groove respectively. The tool holder assembly comprises a tool, an end cover and a tool collet, wherein a conical groove is formed in the tool holder, and the tool is installed in the tool collet. The utility model discloses add man-hour at vertical direction or horizontal direction cutter, the cooling water can be spouted and carries out cooling to the processing portion via first apopore or first and second apopore, and not only simple structure, convenient operation, it is with low costs, can be used for the cutter processing of vertical direction and horizontal direction simultaneously moreover, reduce the processing cost.

Description

Tool collet and tool rack assembly adopting same

Technical Field

The utility model relates to a cutter collet chuck and adopt cutter frame subassembly of this cutter collet chuck belongs to cutter centre gripping technical field.

Background

At present, a collet chuck is generally used for clamping a tool to process a workpiece on a milling and drilling machine and a machining center, and during the processing, a high temperature is generated due to rapid friction between the tool and the workpiece, and in order to keep the surface of the workpiece flat and maintain the sharpness of the cutting edge of the tool, the temperature generated by the processing needs to be reduced by a central water outlet system of the machining machine.

In order to achieve the cooling purpose, the conventional tool can be divided into two types, one type is a tool with a flow passage opening, so that cooling water can be cooled through the flow passage of the tool, and the other type is a tool without a flow passage opening, so that a cooling device needs to be additionally arranged.

However, the tool can be used for processing in the vertical direction and the horizontal direction, but the existing collet chucks are designed for processing in a single direction, and the structural design of the water outlet channel on the collet chuck cannot meet the requirement of processing in both the vertical direction and the horizontal direction, so that a user needs to purchase collet chucks with different designs for the vertical direction and the horizontal direction, which causes additional cost, and therefore, the existing collet chucks need to be improved.

Disclosure of Invention

The utility model discloses not enough to prior art exists, provide a simple structure, simple to operate can be used for the cutter processing of vertical direction and horizontal direction to carry out cooling's cutter collet chuck and adopt the cutter frame subassembly of this cutter collet chuck to cutter or work piece.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a cutter collet comprises a collet body, a cutter clamping hole is formed in the center of the collet body, a plurality of inner cutting grooves are formed in the rear portion of the collet body and communicated with the cutter clamping hole, at least one first water outlet hole and at least one second water outlet hole are formed in the front portion of the collet body, the distance between the front end of the first water outlet hole and the cutter clamping hole is smaller than the distance between the rear end of the first water outlet hole and the cutter clamping hole, the axis of the second water outlet hole is parallel to the axis of the collet body, and the rear ends of the first water outlet hole and the second water outlet hole are respectively communicated with the inner cutting grooves.

The utility model has the advantages that: the first water outlet and the second water outlet form a water outlet on the outer end face of the collet body. A plurality of the undercut grooves are arranged in a radial direction. The design of the first water outlet hole and the second water outlet hole on the water outlet tool collet chuck enables the tool collet chuck to be used for processing tools in different directions, such as the vertical direction and the horizontal direction, and central cooling water or cooling liquid of a processing machine can be sprayed to a processing part of the tool or a processing part of the tool and a workpiece through different water outlets to be cooled, so that a good cooling effect is achieved, and the cooling efficiency is increased.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the first water outlet hole and the second water outlet hole are arranged at intervals.

The beneficial effect who adopts above-mentioned further scheme is that, apopore evenly distributed, no matter be vertical direction processing or horizontal direction processing can both guarantee that cooling water or coolant liquid from the delivery port outflow act on the processing portion of cutter or the processing department of cutter and work piece to guarantee good cooling effect.

Further, the included angle between the axis of the first water outlet hole and the axis of the collet chuck body is 0-12 degrees.

The beneficial effect of adopting above-mentioned further scheme is for make cooling water or coolant liquid slope blowout to guide to the processing department of cutter and work piece processing department.

Further, a plurality of external cutting grooves are formed in the front end of the collet body and communicated with the cutter clamp hole, and the external cutting grooves and the internal cutting grooves are arranged at intervals in the circumferential direction.

The further scheme has the advantages that the collet body is partially cut through the inner and outer grooves, so that the radial deformation of the collet body when the collet body is installed in a tool rack is met, and the installation of the tool rack on a tool barrel clamp and the locking and positioning of a tool on the tool collet can be realized.

Further, a groove is formed in the front surface of the collet body.

The beneficial effect of adopting the above further scheme is that when the tool collet is installed, the further limit of the collet body can be realized through the matching of the groove and the end cover, and the stability of the tool collet is ensured.

Further, the diameter of the groove is larger than that of the front end face of the collet body, and the diameter of the groove is larger than that of the rear end face of the collet body.

The collet body forms a conical body which is contracted forwards and backwards from the groove and has two different tapers, so that the stable connection of the tool rack and the end cover with the collet body is realized, and the locking and positioning of the tool clamping hole on the tool are realized.

Further, the length of the external cutting groove is smaller than that of the collet body, and the length of the internal cutting groove is smaller than that of the collet body.

The beneficial effect who adopts above-mentioned further scheme is, when guaranteeing collet chuck body intensity, radial deformation's demand when satisfying the installation of collet chuck body.

The utility model discloses still relate to a cutter frame subassembly, be in including cutter frame, setting cutter and end cover on the cutter frame still include as above the cutter collet chuck, be equipped with in the cutter frame and be used for the installation the bell jar of cutter collet chuck, the cutter collet chuck is in install under the end cover effect on the cutter frame, the cutter is installed in the cutter collet is downthehole.

The utility model has the advantages that: installing a cutter in a cutter clamping hole of a collet chuck body, plugging the rear end of the collet chuck body into a tapered groove of a cutter frame, and tightly pressing the front end of the collet chuck body by using an end cover, so that the collet chuck body is installed on the cutter frame, wherein a cutter hole and a cooling water or cooling liquid outlet are reserved on the end cover; the tool rack and the end cover extrude the collet chuck body, so that the radial shape of the inner and outer cutting grooves is changed, and the stable positioning of the tool is realized. When the cutter is machined in the vertical direction or the horizontal direction, the central cooling water or the cooling liquid of the machining machine can be sprayed to the machining part of the cutter or the machining part of the cutter and the workpiece through the water outlets of the first water outlet hole or the first water outlet hole and the second water outlet hole for cooling, the structure is simple, the operation is convenient, the cutter can be simultaneously used for machining the cutter in the vertical direction and the horizontal direction, and the machining cost is reduced.

Furthermore, an inner flange clamped with the groove on the collet chuck body is arranged inside the end cover.

Adopt the beneficial effect of above-mentioned further scheme to be, further guarantee the location of collet chuck body through the cooperation of inner flange and recess.

Further, the end cover is in threaded connection with the tool holder.

The beneficial effect of adopting above-mentioned further scheme is, be convenient for install and maintain.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention along the axial direction of the inner slot;

FIG. 3 is a schematic view of the tool collet and the tool in a mated state according to the present invention;

FIG. 4 is a schematic view of the tool holder assembly of the present invention mounted on a vertical tool holder;

FIG. 5 is a schematic structural view of the tool holder assembly of the present invention disposed on a horizontal tool holder;

in the drawings, 1, a collet body; 10. a clamping hole; 11. an outer end face; 12. an inner end surface; 13. a groove; 14. an outer cutting groove; 15. an inner cutting groove; 16. a first water outlet; 17. a second water outlet; 2. a tool holder; 20. a tapered groove; 3. an end cap; 4. and (4) a cutter.

Detailed Description

The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1-3, a tool collet chuck includes a collet chuck body 1, a tool clamping hole 10 is disposed in the center of the collet chuck body, a plurality of internal cutting grooves 15 are disposed at the rear portion of the collet chuck body, the internal cutting grooves communicate with the tool clamping hole, at least one first water outlet hole 16 and at least one second water outlet hole 17 are disposed at the front end of the collet chuck body, a distance between the front end of the first water outlet hole and the tool clamping hole is smaller than a distance between the rear end of the first water outlet hole and the tool clamping hole, an axis of the second water outlet hole is parallel to an axis of the collet chuck body, and rear ends of the first water outlet hole and the second water outlet hole communicate with the internal cutting grooves, respectively. The tool clamping hole 10 penetrates the axis of the collet body, an outer end surface 11 is formed at one end, an inner end surface 12 is formed at the other end, and the collet body is provided with a groove 13 near the outer end surface 11.

The hole axes of the first water outlet holes 16 are inclined to the collet body 1 to form an included angle larger than 0 degree and smaller than 12 degrees, and the hole axes of the second water outlet holes 17 are parallel to the axis of the collet body 1, wherein one end of each of the first water outlet holes 16 and the second water outlet holes 17 is arranged on the outer end surface 11 to form an opening, the other end of each of the first water outlet holes 16 and the second water outlet holes 17 is arranged in the inner cutting groove 15, and the first water outlet holes 16 and the second water outlet holes 17 are arranged in a staggered annular mode.

As shown in fig. 1, the collet body has 6 outer cutting grooves 14, 6

inner cutting grooves

15, 3

first outlet holes

16 and 3 second outlet holes 17. The first water outlet and the second water outlet are communicated with the inner tangent groove respectively.

The first water outlet hole and the second water outlet hole are arranged at intervals.

The included angle between the axis of the first water outlet hole and the axis of the collet chuck body is 0-12 degrees.

The front end of the collet body is also provided with a plurality of external cutting grooves 14 which are communicated with the cutter clamp hole and are arranged at intervals along the circumferential direction. A plurality of outer cutting grooves 14 extending from the outer end surface 11 of the collet body 1 near the inner end surface 12 to partially cut the collet body 1 in an annular interval arrangement; a plurality of inner cutting grooves 15 extending from the inner end surface 12 of the collet body 1 near the outer end surface 11 to partially cut the collet body 1, and the plurality of outer cutting grooves 14 of the collet body 1 are shorter than the collet body 1, and the plurality of inner cutting grooves 15 of the collet body 1 are shorter than the collet body 1, wherein the plurality of inner cutting grooves 15 and the plurality of outer cutting grooves 14 are staggered with each other.

The front surface of the collet body is provided with grooves 13.

The diameter of the groove is larger than that of the front end face of the collet body, and the diameter of the groove is larger than that of the rear end face of the collet body.

The length of the external cutting groove is smaller than that of the collet body, and the length of the internal cutting groove is smaller than that of the collet body.

As shown in fig. 4 and 5, the present invention further relates to a tool holder assembly, which comprises a tool holder 2, a tool 4 and an end cap 3, and a tool collet chuck, wherein the tool holder is provided with a tapered groove 20 for mounting the tool collet chuck, the tool collet chuck is mounted on the tool holder under the action of the end cap, and the tool is mounted in the tool collet hole.

The inner part of the end cover is provided with an inner flange which is clamped with the groove on the collet chuck body.

The end cover is in threaded connection with the tool rest. Is convenient for installation and maintenance.

The tool 4 is arranged on the collet chuck body 1, the inner end surface 11 of the collet chuck body 1 is plugged into a tapered groove 20 of the tool rack 2, an inner flange of an end cover 3 is embedded into a groove 13 of the collet chuck body 1, and finally the end cover 3 is locked into the tool rack 2 through threaded connection.

When the tool collet is used in a milling machine and the tool holder 2 is mounted in a vertical direction, as shown in fig. 4, after the milling machine is started, the central system starts to inject cooling water, which flows into the inner cutting groove 15 and the tool clamping hole 10 from the inner end surface 12 of the collet body 1, since the opening of the inner cutting groove 15 is blocked by the tapered groove 20 of the tool holder 2 and the tool clamping hole 10 of the collet body 1 is blocked by the tool 4, the cooling water flows out from the inner cutting groove 15 along the first water outlet hole 16 and the second water outlet hole 17.

Because the milling machine adopts the cutter 4 to rotate, the angle of the machined part is fixed, the machined part is displaced according to the requirement to be machined, the collet chuck body 1 can rotate along with the cutter 4, the cooling water also generates a centrifugal force when in the collet chuck body 1, the cooling water cannot smoothly flow out along the straight hole of the second water outlet hole 17 due to the resistance generated by the centrifugal force, at the moment, the first water outlet hole 16 of the collet chuck body 1 is inclined to the axis, can be obliquely sprayed out along the centrifugal force, and guides and concentrates the cooling water to the machining position between the cutter and the workpiece.

The tool collet can also be applied to a lathe, the tool holder 2 is horizontally arranged, referring to fig. 5, after the lathe is started, a central system starts to inject cooling water, the cooling water flows into the inner slot 15 and the clamping hole 10 from the inner end surface 12 of the collet body 1, since the opening of the inner slot 15 is blocked by the tapered slot 20 of the tool holder 2, and the tool clamping hole 10 of the collet body 1 is blocked by the tool 4, the cooling water flows out from the inner slot 15 along the first water outlet hole 16 and the second water outlet hole 17.

The lathe is fixed by the angle of the cutter 4 and horizontally moves, the workpiece rotates to drill, the collet body 1 is fixed along with the cutter 4, cooling water smoothly flows out from the first water outlet hole 16 and the second water outlet hole 17, the first water outlet hole 16 is inclined to the axis of the collet body 1, the angle of the first water outlet hole 16 guides the flowing cooling water to flow into a drilling part along with the lines of the cutter 4, and the second water outlet hole 17 guides the cooling water to flow to the surface of the workpiece.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A tool collet comprises a collet body, a tool clamping hole is formed in the center of the collet body, a plurality of inner cutting grooves are formed in the rear portion of the collet body and communicated with the tool clamping hole, and the tool collet is characterized in that at least one first water outlet hole and at least one second water outlet hole are formed in the front portion of the collet body, the distance between the front end of the first water outlet hole and the tool clamping hole is smaller than the distance between the rear end of the first water outlet hole and the tool clamping hole, the axis of the second water outlet hole is parallel to the axis of the collet body, and the rear ends of the first water outlet hole and the second water outlet hole are respectively communicated with the inner cutting grooves.

2. The tool collet of claim 1, wherein the first outlet opening is spaced from the second outlet opening.

3. The tool collet of claim 2, wherein the axis of the first water outlet hole is at an angle of 0-12 degrees to the axis of the collet body.

4. The tool collet according to claim 1, 2 or 3, wherein the front end of the collet body is further provided with a plurality of undercut grooves, the undercut grooves communicating with the tool holder bore, the undercut grooves being circumferentially spaced from the undercut grooves.

5. The tool collet of claim 4, wherein the front surface of the collet body is provided with grooves.

6. The tool collet of claim 5, wherein the diameter of the groove is greater than the diameter of the front end face of the collet body and the diameter of the groove is greater than the diameter of the rear end face of the collet body.

7. The tool collet of claim 4, wherein the length of the undercut groove is less than the length of the collet body and the length of the undercut groove is less than the length of the collet body.

8. A tool holder assembly comprising a tool holder, tools mounted on said tool holder, and an end cap, further comprising the tool collet of any one of claims 1-7, wherein said tool holder has a tapered slot for receiving said tool collet, said tool collet is mounted on said tool holder by said end cap, and said tools are mounted in said tool collet holes.

9. The toolholder assembly according to claim 8, wherein the interior of the end cap is provided with an internal flange that engages a groove on the collet body.

10. The toolholder assembly according to claim 8, wherein the end cap is threadably connected to the toolholder.