TWI721439B - Tool collet group and collet capable of improving stability - Google Patents

Abstract

The invention provides a tool collet group capable of improving stability, which is provided with a collet, an axial limit set, a tool, a pin and a plurality of damping blocks; the collet includes a pin groove and a containing groove And a plurality of accommodating grooves, the pin groove radially penetrates the collet, the accommodating groove is axially formed on the collet, and the plurality of accommodating grooves are axially formed on the collet; the axial limit set includes An end cover and an abutting piece, the end cover is arranged in the accommodating groove and an accommodating hole penetrates through the accommodating hole, the abutting piece is arranged in the accommodating hole; the cutter is provided with a clamping groove and an installation end, the The card slot is recessed in the cutter, the mounting end abuts against the abutment member; the pin extends through the pin slot and abuts against the card slot; each damping block is accommodated in one of the accommodating slots, thereby providing A tool collet group and its collet that can improve stability.

Description

Tool collet group and collet capable of improving stability

The invention relates to a tool collet group, in particular to a tool collet group and its collet which can improve stability.

The existing tool collet set includes a collet and a tool. The collet is provided with a clamping hole and a plurality of slits. The clamping hole penetrates the collet in the axial direction, and each slit is formed in the axial direction. The collet, and the plurality of slits are radially arranged at equal angular intervals and surround the clamping hole. The plurality of slits enable the collet to deform in the radial direction; the tool is provided with an installation end and a The processing end, the installation end is set opposite to the processing end; when the collet and the tool of the existing tool collet group are to be assembled, the installation end of the tool is extended into the clamping hole of the collet, and then the The collet is extended into a device groove of a tool bar, and then a nut is used to pass through the collet, and the nut is locked with the tool bar. After the collet is deformed in the radial direction, it can be clamped With the tool, the collet and the tool can be assembled.

However, even if the collet of the existing tool collet group can indeed clamp the tool, the collet lacks a mechanism or mechanism for restricting the displacement of the tool in the axial direction or restricting the rotation of the tool. During processing, it is displaced or rotated in the axial direction, which affects the accuracy of the workpiece processing. Furthermore, the collet will shake relative to the tool holder used to install the collet during the processing, thereby causing it to be clamped in it. The tool shakes together, and this situation will also affect the accuracy of the workpiece held by the tool. Therefore, the existing tool collet set needs to be improved.

In order to solve the problem that the collet in the existing tool collet group lacks a mechanism or mechanism for limiting the displacement of the tool in the axial direction or restricting the rotation of the tool, and the collet is relatively used to install the collet during processing The tool bar shakes, which causes the tool clamped in it to shake together, thereby affecting the accuracy of the tool installed in the collet on the workpiece. The main purpose of the present invention is to provide a solution that can solve the current technical problems. The tool collet group to improve the stability includes: A collet, the collet includes an accommodating space, a pin groove, an accommodating groove and a plurality of accommodating grooves, wherein the accommodating space axially penetrates the collet, and the plug groove radially penetrates The collet is communicated with the accommodating space, the accommodating groove is concavely formed on one end surface of the collet along the axial direction and communicates with the accommodating space, and the plurality of accommodating grooves are respectively along the axis Toward recesses are formed in the collet; An axial limit set, the axial limit set is detachably arranged in the accommodating groove of the collet, and includes an end cover and an abutment member, wherein the end cover is detachably combined with the collet The accommodating groove is provided with an accommodating hole, the accommodating hole penetrates the end cover and communicates with the accommodating space of the collet, and the abutting member is arranged in the accommodating hole of the end cover, And extend into the accommodating space of the collet; A tool, the tool is provided with a clamping groove and an installation end, the clamping groove is recessedly formed in the tool, and is provided in communication with the pin groove of the collet, and the installation end abuts against the axial limit set The abutment; A pin, the pin extends into the collet through the pin slot and abuts against the end surface of the slot of the tool; and A plurality of damping blocks, each damping block is accommodated in one of the accommodating grooves of the collet.

Further, the tool collet group capable of improving the stability as mentioned above, wherein the cylinder holder has a first end surface and a second end surface, and the first end surface and the second end surface are respectively provided at both ends of the collet Some of the plurality of accommodating grooves are recessed and formed in the accommodating groove in the axial direction, and surround the accommodating space, and the other accommodating grooves are respectively formed in the accommodating groove in the axial direction. The second end face, and surrounds the containing space.

Still further, the tool collet set capable of improving the stability as mentioned above, wherein the end cover is provided with two water outlet holes, the two water outlet holes respectively penetrate through the end cover, and the two water outlet holes are respectively connected to the collet The accommodating space is connected.

More preferably, the tool collet group capable of improving stability as described above, wherein the abutting member is a thrust screw.

More preferably, the tool collet group capable of improving the stability as described above, wherein each damping block is a flexible body.

The present invention further provides a collet with improved stability that can solve the current technical problem, which is used in conjunction with a tool, the tool is provided with a slot, the slot is recessedly formed in the tool, and the collet is provided with a housing Space, a pin slot, a accommodating slot, a plurality of accommodating slots, an axial limit set, a pin and a plurality of damping blocks; wherein the accommodating space penetrates the collet axially and can accommodate the The tool; the pin groove radially and radially penetrates the collet, and communicates with the accommodating space and the groove of the tool; the accommodating groove is recessed in the axial direction formed on one end surface of the collet, And communicate with the accommodating space; the plurality of accommodating grooves are respectively concavely formed in the collet along the axial direction; the axial limit set is detachably arranged in the accommodating groove of the collet, and includes one end The cover and an abutting member, wherein the end cover is detachably combined in the accommodating groove of the collet, and is provided with an accommodating hole, the accommodating hole penetrates the end cover and is connected to the accommodating groove of the collet. The setting space is communicated with each other, the abutting member is arranged in the accommodating hole of the end cap and extends into the accommodating space of the collet to abut against the cutter; the bolt extends into the barrel through the bolt groove And abut against the end surface of the slot of the cutter; each damping block is accommodated in one of the accommodating slots of the collet.

Through the above technical means, the effects obtained by the present invention are increased as follows: 1. The installation end of the tool abuts against the abutment part of the axial limit set, which can prevent the tool from moving in the axial direction during the machining process; the bolt extends into the collet through the bolt section of the bolt groove , And abut against the end surface of the slot of the tool, and can limit the slot of the tool, thereby preventing the tool from rotating during the machining process. By preventing the tool from moving in the axial direction and preventing the tool from rotating, It can improve the machining accuracy of the tool. 2. In the present invention, the multiple damping blocks that can absorb shock are arranged in the collet, which can prevent the tool from shaking due to the collet during processing, and cause the tool clamped in the collet to shake together, resulting in When the machining accuracy is reduced.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the content of the specification, the preferred embodiment shown in the figure is further described in detail as follows:

The first preferred embodiment of the tool collet group and its collet which can improve the stability proposed by the present invention is shown in FIG. 1, which includes a collet 10, an axial limit group 20, a tool 30, A plug 40 and a plurality of damping blocks 50. In the first embodiment, the collet 10 is a water outlet collet, wherein:

As shown in FIGS. 1 to 3, the collet 10 has a first end surface 101 and a second end surface 102, and includes an accommodation space 11, a pin groove 12, an accommodation groove 13, and a plurality of accommodation grooves 14. And two outlets 15; wherein the accommodating space 11 axially penetrates the collet 10; the latch groove 12 penetrates the collet 10 radially and eccentrically, and includes a latch section 121 and an air escape section 122. The plug section 121 communicates with the accommodating space 11 and has an aperture. The escape section 122 communicates with the plug section 121 to form the latch slot 12 and has an aperture. The aperture is smaller than the aperture of the plug section 121; the accommodating groove 13 is recessed and formed on the first end surface 101 of the collet 10 in the axial direction as shown in FIG. 3, and communicates with the accommodating space 11; Some of the accommodating grooves 14 in the accommodating groove 14 are respectively recessed and formed in the accommodating groove 13 along the axial direction, and surround the accommodating space 11, and the other accommodating grooves 14 are respectively recessed and formed in the axial direction. The second end surface 102 surrounds the accommodating space 11; as shown in FIG. 4, the two outlet channels 15 are respectively recessed and formed on an inner wall surface of the collet 10 surrounding the accommodating space 11 in the axial direction, and are connected with the The accommodating space 11 is connected, and the two water outlets 15 are arranged opposite to each other.

As shown in Figures 2 and 3, the axial limit set 20 is detachably disposed in the accommodating groove 13 of the collet 10, and includes an end cover 21 and an abutment member 22; wherein the end cover 21 is detachable It is assembled in the containing groove 13 of the collet 10, and is provided with a containing hole 211 and two water outlet holes 212. The containing hole 211 penetrates the end cap 21 and is connected to the containing space of the collet 10 11 communicate with each other, the two outlet holes 212 respectively penetrate through the end cover 21, and the two outlet holes 212 are respectively communicated with the accommodating space 11 of the collet 10, and each outlet hole 212 is connected to the inside of the collet 10 A water outlet 15 is connected, and further, the two water outlet holes 212 are respectively located on both sides of the accommodating hole 211; the abutting member 22 is provided in the accommodating hole 211 of the end cover 21 and passes through the accommodating groove 13 It extends into the accommodating space 11 of the collet 10, and further, the abutting member 22 is a thrust screw.

As shown in Figure 3, the tool 30 is provided with a clamping groove 31, an installation end and a processing end, wherein the clamping groove 31 is concavely formed on the outer peripheral surface of the tool 30 adjacent to the installation end, the installation end and the The processing ends are respectively provided at the two ends of the slot 31, and the tool 30 extends into the accommodating space 11 through the collet 10 adjacent to the second end surface 102 until the installation end of the tool 30 abuts against the The abutment member 22 of the axial limit set 20, and then rotate the cutter 30, so that the card slot 31 is connected with the pin section 121 of the pin groove 12; by setting the abutment in the axial limit set 20 The piece 22 can prevent the tool 30 from moving in the axial direction toward the first end surface 101 of the collet 10 during the machining process, thereby improving the machining accuracy of the tool 30.

As shown in Figures 2 to 4, the pin 40 extends into the collet 10 through the pin section 121 of the pin slot 12, and abuts against the end surface of the slot 31 of the tool 30, due to the aperture of the escape section 122 Is smaller than the aperture of the plug section 121, the plug 40 will not extend into the escape section 122; the plug 40 can limit the slot 31 of the tool 30, thereby preventing the tool 30 from rotating during the machining process, thereby lifting the The machining accuracy of the tool 30.

As shown in FIGS. 1 and 2, each damping block 50 is accommodated in one of the accommodating grooves 14 of the collet 10, so that the plurality of damping blocks 50 surround the tool 30, so that the tool 30 can be processed during the machining process. In order to avoid the tool 30 being processed, the processing accuracy is reduced due to the shaking of the collet 10, and further, each damping block 50 is a flexible body.

The use of the first preferred embodiment of the tool collet group and its collet which can improve the stability of the present invention is shown in FIGS. 5 and 6, the tool 30 is extended into the containing space 11 until the tool 30 The mounting end of the pin abuts against the abutment member 22 of the axial limit set 20, and rotates the cutter 30 so that the card slot 31 is connected with the pin section 121 of the pin slot 12, and then the pin 40 passes through The pin section 121 of the pin slot 12 extends into the collet 10 and abuts against the end surface of the slot 31 of the tool 30, and then the collet 10 is extended into a device slot 61 of a tool shaft 60, and then a tool is used. The nut 70 passes through the collet 10, and the nut 70 is locked with the cutter rod 60, and the collet 10 is pressed against the cutter 30 to complete the assembly; further, in this embodiment, The collet 10 is a water outlet collet and is provided with two outlet channels 15. In order to prevent the temperature from being too high during processing, the user can inject cooling water into the cutter bar 60, and the cooling water will then flow through the end cap 21 The two water outlet holes 212 flow into the space between the accommodating space 11 and the tool 30, and then flow to the outside through the two water outlet channels 15 of the collet 10, so that the effect of cooling the tool 30 can be achieved.

In the second preferred embodiment of the present invention, the collet 10 is a water-stop collet as shown in FIG. 7. The structure and usage of the second preferred embodiment are similar to those of the first preferred embodiment. The structure and use mode are roughly the same, the difference is that the collet 10 does not have the two outlet channels 15.

In summary, the mounting end of the tool 30 abuts against the abutment member 22 of the axial limit set 20, which can prevent the tool 30 from facing the first end surface of the collet 10 in the axial direction during the machining process. 101 displacement; the pin 40 extends into the collet 10 through the pin section 121 of the pin slot 12, and abuts against the end surface of the slot 31 of the tool 30, and can limit the slot 31 of the tool 30, and then Prevent the tool 30 from rotating during the machining process. By preventing the tool 30 from moving in the axial direction and preventing the tool 30 from rotating, the machining accuracy of the tool 30 can be improved; and the present invention is provided in the collet 10 with a shock-absorbing The plurality of damping blocks 50 can further prevent the tool 30 from shaking due to the collet 10 during processing, and causing the tool 30 clamped in the collet 10 to shake together, resulting in a decrease in machining accuracy; A collet in the collet group lacks a mechanism or mechanism for restricting the displacement of a tool in the axial direction, or restricting the rotation of a tool, and the collet is relatively easy to install the tool during the machining process. The rod shakes, which causes the tool clamped in it to shake together, thereby affecting the accuracy of the tool mounted on the collet to process the workpiece. The present invention greatly improves the stability of the tool 30.

10: Collet 101: First end face 102: second end 11: containing space 12: Latch slot 121: Latch section 122: Escape section 13: Containment tank 14: containing tank 15: outlet 20: Axial limit group 21: End cover 211: Containment hole 212: Outlet hole 22: Abutment piece 30: Tool 31: card slot 40: latch 50: Damping block 60: Toolholder 70: Nut

Fig. 1 is a perspective view of the first preferred embodiment of the present invention. Figure 2 is an exploded perspective view of the first preferred embodiment of the present invention. Figure 3 is a cross-sectional side view of the first preferred embodiment of the present invention. Figure 4 is a cross-sectional end view of the first preferred embodiment of the present invention. Fig. 5 is a perspective view of the implementation state of the first preferred embodiment of the present invention. Fig. 6 is a cross-sectional side view of the implementation state of the first preferred embodiment of the present invention. Fig. 7 is a perspective cross-sectional view of the second preferred embodiment of the present invention in an implementation state.

10: Collet

101: first end face

102: second end face

12: Latch slot

20: Axial limit group

22: buttress

30: Tool

40: latch

50: Damping block

Claims (10)

A tool collet group capable of improving stability, which is provided with: A collet, the collet includes an accommodating space, a pin groove, an accommodating groove and a plurality of accommodating grooves, wherein the accommodating space axially penetrates the collet, and the plug groove radially penetrates The collet is communicated with the accommodating space, the accommodating groove is concavely formed on one end surface of the collet along the axial direction and communicates with the accommodating space, and the plurality of accommodating grooves are respectively along the axis Toward recesses are formed in the collet; An axial limit set, the axial limit set is detachably arranged in the accommodating groove of the collet, and includes an end cover and an abutment member, wherein the end cover is detachably combined with the collet The accommodating groove is provided with an accommodating hole, the accommodating hole penetrates the end cover and communicates with the accommodating space of the collet, and the abutting member is arranged in the accommodating hole of the end cover, And extend into the accommodating space of the collet; A tool, the tool is provided with a clamping groove and an installation end, the clamping groove is recessedly formed in the tool, and is provided in communication with the pin groove of the collet, and the installation end abuts against the axial limit set The abutment; A pin, the pin extends into the collet through the pin slot and abuts against the end surface of the slot of the tool; and A plurality of damping blocks, each damping block is accommodated in one of the accommodating grooves of the collet. The tool collet group capable of improving stability according to claim 1, wherein the barrel holder has a first end surface and a second end surface, and the first end surface and the second end surface are respectively provided at both ends of the collet Some of the plurality of accommodating grooves are recessed and formed in the accommodating groove in the axial direction, and surround the accommodating space, and the other accommodating grooves are respectively formed in the accommodating groove in the axial direction. The second end face, and surrounds the containing space. The tool collet group capable of improving the stability according to claim 1, wherein the end cover is provided with two water outlet holes, the two water outlet holes respectively penetrate through the end cover, and the two water outlet holes are respectively connected with the collet The accommodation space is connected. According to claim 1, the tool collet group capable of improving stability, wherein the abutting member is a thrust screw. The tool collet group capable of improving stability as described in claim 1 or 4, wherein each damping block is a flexible body. A collet capable of improving stability, which is used in conjunction with a tool. The tool is provided with a clamping slot, which is recessed and formed in the tool, and the collet is provided with an accommodating space, a pin groove, and an accommodating groove , A plurality of accommodating grooves, an axial limit set, a pin and a plurality of damping blocks; wherein the accommodating space axially penetrates the collet and can accommodate the tool; the latch groove penetrates radially and parallelly Is arranged on the collet and communicates with the accommodating space and the clamping groove of the cutter; the accommodating groove is recessed and formed on one end surface of the collet in the axial direction and communicates with the accommodating space; the A plurality of accommodating grooves are respectively recessed and formed in the collet along the axial direction; the axial limit set is detachably arranged in the accommodating groove of the collet, and includes an end cover and an abutting member, wherein the end The cover is detachably assembled in the accommodating groove of the collet, and is provided with an accommodating hole that penetrates the end cover and communicates with the accommodating space of the collet, and the abutting member is provided In the accommodating hole of the end cap, and extend into the accommodating space of the collet, and abut against the cutter; the pin extends into the collet through the pin groove, and abuts against the clamp of the cutter The end surface of the groove; each damping block is accommodated in one of the accommodating grooves of the collet. The collet capable of improving stability according to claim 6, wherein the collet has a first end surface and a second end surface, and the first end surface and the second end surface are respectively provided at two ends of the collet; the Some of the plurality of accommodating grooves are respectively concavely formed in the accommodating groove in the axial direction and surround the accommodating space, and the other several accommodating grooves are respectively concavely formed in the second accommodating groove in the axial direction. End surface, and surround the containing space. The collet capable of improving stability according to claim 6, wherein the end cover is provided with two water outlet holes, the two water outlet holes respectively penetrate through the end cover, and the two water outlet holes are respectively arranged with the accommodating of the collet The space is connected. The collet capable of improving stability according to claim 6, wherein the abutting member is a thrust screw. The collet capable of improving stability as described in claim 6 or 9, wherein each damping block is a flexible body.

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