TWM672730U - Cutting rod installation device with cooling effect - Google Patents

Abstract

The present invention is a tool bar mounting device with cooling effect, comprising a tool sleeve seat and a tool sleeve. The tool sleeve seat comprises a body and a cooling channel. The body can be fixed to the rotary disk turret. The cooling channel extends from the surface of the body toward the inside of the body. The tool sleeve is arranged in the tool sleeve seat and comprises a groove and a tool sleeve flow channel. The groove can accommodate the tool bar assembly. The tool sleeve flow channel extends inward from the surface of the tool sleeve and connects to the groove. , and is connected to the cooling channel of the tool holder. Through the cooling channel of the tool holder and the tool holder flow channel of the tool holder, the coolant can be supplied to the tool bar assembly with the internal coolant flow channel. Compared with the existing processing machine with a rotary turret, which adopts an external nozzle independent of the tool bar mounting device and has limited cooling effect, this new type can improve the cooling effect and extend the service life of the tool used in the rotary turret.

Description

Tool bar mounting device with cooling effect

The invention relates to a component for installing a tool bar and a tool in a processing machine, and in particular to a tool bar mounting device with a cooling effect.

To achieve a variety of machining capabilities, processing machines are typically equipped with multiple toolholders equipped with different types of cutting tools. One existing processing machine design features a rotary turret with multiple toolholder mounting devices, or tool holder assemblies, located on the outer edge of the rotary turret. These mounting devices are used to mount different toolholders and cutting tools. The rotary turret rotates, allowing different tools to be aligned with the workpiece for machining.

In existing machining centers using rotary turrets, the cooling system typically incorporates nozzles installed around the tool bar mounting device or the rotary turret to spray coolant toward the machining location where the tool contacts the workpiece. However, cooling with these nozzles only cools the outer portion of the tool where it contacts the workpiece, and the coolant may be blocked by chips generated during machining, resulting in limited cooling effectiveness.

In order to solve the problem of limited cooling effect of existing processing machines using rotary turrets by installing independent nozzles for cooling, the purpose of this new invention is to propose a tool bar mounting device with cooling effect.

The present invention provides a new tool rod mounting device with a cooling effect, which comprises: a tool sleeve seat, which comprises a body and a cooling channel, wherein the cooling channel extends from the surface of the body toward the inside of the body; and a tool sleeve, which is arranged in the tool sleeve seat and comprises a groove and a tool sleeve flow channel, wherein the groove can accommodate a tool rod assembly, and the tool sleeve flow channel is formed in the portion of the tool sleeve located in the tool sleeve seat, and extends inward from the surface of the tool sleeve to connect with the groove, and the tool sleeve flow channel is connected with the cooling channel of the tool sleeve seat.

The improved performance achieved by the technical means of the present invention lies in that, by designing the cooling channel on the body of the tool holder and the tool holder flow channel on the tool holder, a route for supplying coolant to the tool bar assembly can be formed. As a result, the present tool bar mounting device can be used in conjunction with a tool bar assembly having an internal coolant flow channel, thereby cooling the tool bar and tool by internal cooling and reducing the temperature of the processing position. Compared with the independent external nozzles used in existing processing machines with rotary turrets, the present invention can effectively improve the cooling effect, reduce thermal deformation of the tool, and thereby extend the service life of the tool used in the rotary turret.

In order to fully understand the technical features and practical effects of this novel device and to implement it according to the novel content, the preferred embodiment shown in the figure is further described in detail as follows:

The present invention relates to a tool bar mounting device with a cooling effect, which is mounted on a rotary turret of a CNC lathe. A plurality of such tool bar mounting devices are used to mount tool bars with different tools fixed thereto on the outer periphery of the rotary turret, so that the plurality of tools are arranged in a ring. In this way, the rotary turret can be rotated to align the workpiece with different tools for various machining operations. As shown in FIG1 , a preferred embodiment of the tool bar mounting device includes a tool holder seat 10 and a tool holder 20, wherein the tool holder 20 is disposed within the tool holder seat 10.

As shown in Figures 1, 2 and 4, the tool holder seat 10 includes a main body 30 and a cooling channel 31. The main body 30 is provided with a plurality of coupling holes for a plurality of bolts to be respectively inserted to fix the main body 30 on the rotary disk turret. The interior of the main body 30 is hollow and can accommodate the tool holder 20, bearings and other different components. The cooling channel 31 extends from the surface of the main body 30 to the interior of the main body 30. As shown in Figure 2, the cooling channel 31 forms a water inlet 311 on the surface of the main body 30. The water inlet 311 and a cooling liquid source can be connected by a pipeline to input the cooling liquid into the interior of the main body 30 through the cooling channel 31.

As shown in Figures 2 and 4, the tool sleeve 20 is rotatably disposed in the main body 30. A bearing is provided between the tool sleeve 20 and the main body 30 to maintain the tool sleeve 20 on the axis of the tool sleeve seat 10. The tool sleeve 20 includes a groove 21 and a tool sleeve flow channel 22. The groove 21 extends inward from one end of the tool sleeve 20 and can accommodate a tool rod. In a preferred embodiment of the present invention, the interior of the groove 21 has a tapered profile. The inner diameter of the groove 21 gradually decreases inward from one end of the tool sleeve 20, and can be tightly combined with the tool rod having a tapered shape.

As shown in Figures 2 to 5, the tool sleeve flow channel 22 extends inward from the outer circumference of the tool sleeve 20 to the receiving groove 21 and is connected to the receiving groove 21, and the tool sleeve flow channel 22 is connected to the cooling channel 31 of the main body 30. Thereby, the coolant enters the cooling channel 31 from the water inlet 311, and after flowing to the interior of the main body 30 of the tool sleeve seat 10, it can flow into the tool sleeve flow channel 22 of the tool sleeve 20 and flow to the receiving groove 21 to cool the tool rod and tool accommodated in the receiving groove 21.

As shown in FIG6 , the tool bar mounting device is used to mount a tool. The slot 21 of the tool holder 20 accommodates a tool bar 91 of the tool bar assembly 90. By screwing a clamping cover 93 into the tool holder 20 and matching the slot 21 with a tapered profile inside, the tool bar 91 can be positioned and fixed inside the slot 21. When the tool 92 on the tool bar 91 is used for processing, The coolant is input from the water inlet 311, passes through the cooling channel 31 and the tool sleeve flow channel 22 of the tool sleeve 20, and enters the tank 21. Combined with the internal coolant flow channel designed on the tool bar assembly 90, the coolant can flow directly through the tool bar 91 or further flow through the tool 92 for cooling, and is sprayed directly toward the processing position at a relatively close distance, which can not only effectively reduce the temperature but also facilitate chip removal.

By designing the cooling channel 31 on the body 30 of the tool holder seat 10 and the tool holder flow channel 22 on the tool holder 20, a route for supplying coolant to the tool bar assembly 90 can be formed. As a result, the new tool bar mounting device can be used in conjunction with the tool bar assembly 90 having an internal coolant flow channel to cool the tool bar 91 and tool 92 by internal cooling, thereby reducing the temperature of the processing position. Compared with the independent external nozzles used in existing processing machines with rotary turrets, the new model can effectively improve the cooling effect on the tool, reduce thermal deformation of the tool, and thus extend the service life of the tool used in the rotary turret.

As shown in Figures 2 to 5, in the preferred embodiment of the present invention, the tool holder seat 10 specifically further includes a spacer ring sleeve 40, an outer water supply ring 50 and an inner water supply ring 60. The spacer ring sleeve 40, the outer water supply ring 50 and the inner water supply ring 60 are arranged between the main body 30 of the tool holder seat 10 and the tool holder 20. Through the structural design of the spacer ring sleeve 40, the outer water supply ring 50 and the inner water supply ring 60, a flow path connecting the cooling channel 31 and the tool holder flow channel 22 of the tool holder 20 is formed.

As shown in Figures 3 to 5, the spacer ring 40 rests against the inner surface of the main body 30 and surrounds the tool sleeve 20. A plurality of through holes 41 are provided on the spacer ring 40. The plurality of through holes 41 extend along different radial directions of the tool sleeve 20. Thus, the coolant can flow inward through the spacer ring 40 through the through holes 41 in different radial directions. Specifically, as shown in Figure 5, an annular gap G1 is formed between the main body 30 of the tool sleeve seat 10 and the spacer ring 40. The cooling channel 31 extends to the annular gap G1, so that the annular gap G1 is connected to the cooling channel 31 and the plurality of through holes 41 of the spacer ring 40.

As shown in FIG3 to FIG5, the outer water supply ring 50 and the inner water supply ring 60 are arranged between the spacer ring 40 and the knife sleeve 20, the inner water supply ring 60 is sleeved on the knife sleeve 20, and the outer water supply ring 50 is sleeved on the inner water supply ring 60, and the outer water supply ring 50 is against the inner circumference of the spacer ring 40, wherein the outer water supply ring 50 is provided with a plurality of outer water supply rings. Hole 51, the inner water supply ring 60 is provided with a plurality of inner water supply holes 61, and the plurality of outer water supply holes 51 and the plurality of inner water supply holes 61 are provided along different radial directions of the tool sleeve 20, thereby, the coolant can flow inward through the outer water supply holes 51 and the inner water supply holes 61 in different radial directions, and finally flow into the tool sleeve flow channel 22 of the tool sleeve 20.

As shown in Figure 5, an annular external water supply gap G2 is formed between the external water supply ring 50 and the spacer ring 40, and the external water supply gap G2 is connected to the multiple external water supply holes 51 and the multiple through holes 41; an annular central water supply gap G3 is formed between the external water supply ring 50 and the internal water supply ring 60, and the central water supply gap G3 is connected to the multiple external water supply holes 51 and the multiple internal water supply holes 61; an annular internal water supply gap G4 is formed between the internal water supply ring 60 and the knife sleeve 20, and the internal water supply gap G4 is connected to the multiple internal water supply holes 61 and the knife sleeve flow channel 22 of the knife sleeve 20.

In the preferred embodiment of the present invention, through the above-mentioned annular gaps, even if the openings of the multiple through holes 41, the external water supply hole 51, the internal water supply hole 61 and the tool sleeve flow channel 22 are not in the same radial direction, the cooling liquid can still flow smoothly inward to the tool sleeve flow channel 22 of the tool sleeve 20 to be supplied to the internal cooling flow channel of the tool rod assembly 90, and the installation of the spacer ring 40, the external water supply ring 50 and the internal water supply ring 60 is more convenient. Moreover, through the annular gaps, the spacer ring 40, the external water supply ring 50 and the internal water supply ring 60 can also be kept at a relatively low temperature to prevent the heat generated by the rotation of the tool sleeve 20 in the main body 30 from causing the temperature inside the main body 30 to be too high.

Furthermore, as shown in Figure 3, the external water supply ring 50 is composed of two rings 52, wherein each of the rings 52 is recessed with a plurality of notches 521, and the two rings 52 are symmetrically combined so that each notch 521 is connected to one of the corresponding notches 521 on the other ring 52 to form an external water supply hole 51. When the thickness of the external water supply ring 50 is relatively thick, the plurality of notches 521 are machined on the two rings 52, and the external water supply hole 51 is formed by connecting the notches 521 of the two rings 52. Compared with directly machining a through hole on a single ring, the machining resistance is smaller, and the external water supply ring 50 and the external water supply hole 51 can maintain a higher precision.

Furthermore, in the preferred embodiment of the present invention, at least one O-ring is provided between the main body 30 of the tool holder seat 10 and the spacer sleeve 40, between the spacer sleeve 40 and the outer water supply ring 50, between the outer water supply ring 50 and the inner water supply ring 60, and between the inner water supply ring 60 and the tool holder 20. This prevents the coolant from leaking to other places during flow, so that all the coolant is supplied to the inner cooling channel of the tool rod assembly 90 through the above-mentioned coolant flow path.

As shown in Figures 2 and 4, preferably, the tool rod mounting device also includes a water-stop screw 70, which can be provided in the tool sleeve flow channel 22. Specifically, the tool sleeve flow channel 22 includes a plurality of radial sections 221 and an axial section 222. The plurality of radial sections 221 extend inward from the outer peripheral surface of the tool sleeve 20 along different radial directions of the tool sleeve 20 to the axial section 222. The axial section 222 extends along the axial direction of the tool sleeve 20 to the receiving groove 21, and the axial section 222 is provided with an internal thread. The water-stop screw 70 can be selectively screwed into the axial section 222.

Through the water-stop screw 70, when the internal cooling channel is not in use, the water-stop screw 70 can be screwed into the axial section 222 from the opening of the groove 21 to prevent the coolant from spraying out. When the internal cooling channel needs to be used, the water-stop screw 70 can be first loosened from the axial section 222 and taken out through the groove 21, and then the tool rod assembly 90 can be installed in the groove 21. The coolant can pass through the cooling channel 31 of the main body 30, the flow path in the tool sleeve seat 10, and the tool sleeve flow channel 22 to be supplied to the internal cooling channel of the tool rod assembly 90.

In addition, as shown in Figures 2, 4, and 6, in the preferred embodiment of the present invention, the tool bar mounting device further includes a cooling nozzle 80. The cooling nozzle 80 is disposed on the body 30 of the tool holder 10 and is provided with a nozzle flow channel 81. One end of the nozzle flow channel 81 is connected to the cooling channel 31, and the other end of the nozzle flow channel 81 forms a nozzle outlet 82. The coolant enters the cooling channel 31 from the water inlet 311 and is split. A portion of the coolant flows through the flow path between the main body 30 and the tool sleeve 20 to the aforementioned internal cooling channel, while the other portion enters the nozzle channel 81 and is ejected from the nozzle outlet 82 of the nozzle channel 81 toward the tool 92 of the tool bar assembly 90, which can be used in conjunction with the aforementioned internal cooling channel for cooling.

Specifically, the cooling nozzle 80 has a spherical structure, which can be movably disposed in a groove recessed in the body 30 and abutted against the spherical structure by a screw fixed to the body 30 to prevent the movable cooling nozzle 80 from being separated from the groove. In this way, the angle of the cooling nozzle 80 can be adjusted and positioned as needed so that the coolant is sprayed to an appropriate position for cooling. More preferably, as shown in Figures 2 and 4, the cooling nozzle 80 may further include a nozzle screw 83, which can be optionally disposed at the nozzle outlet 82 of the nozzle flow channel 81. It can be decided as needed to use the aforementioned internal cooling flow channel, the cooling nozzle 80, or both.

As shown in Figure 7, there is a schematic diagram of another tool bar assembly 90A installed in accordance with a preferred embodiment of the present invention. In the tool bar assembly 90 shown in Figure 6, the tool 92 is a six-edged milling cutter in an elongated shape, and correspondingly, the tool bar 91 has an elongated hole extending in the axial direction for mounting the tool bar 91, and an internal coolant channel is formed through the tool bar 91 and the tool 92; and the tool bar assembly 90A shown in Figure 7 includes two tools 92A, each of which is a turning tool blade, and the tool bar 91A is a turning tool bar having a groove for mounting the two tools 92A, and an internal coolant channel is formed on the tool bar 91A, with its opening facing the two tools 92A.

In addition, the tool bar assembly installed in the preferred embodiment of the present invention may include, in addition to the aforementioned tool bar and tool, other components for fixing the tool, such as a collet and a locking nut. The components included in the tool bar assembly depend on the type of tool used and the method of fixing the tool. The form of the internal coolant channel can also be designed according to the cooling needs and is not limited to the tool bar assemblies 90 and 90A shown in Figures 6 and 7.

The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person having ordinary knowledge in the relevant technical field, if within the scope of the technical solution proposed by the present invention, makes partial changes or modifications to the technical content disclosed by the present invention, and within the scope of the technical solution of the present invention, all equivalent embodiments that do not deviate from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

10: Tool holder seat 20: Tool holder 21: Receptacle 22: Tool holder flow channel 221: Radial section 222: Axial section 30: Body 31: Cooling channel 311: Water inlet 40: Spacer ring 41: Through hole 50: External water supply ring 51: External water supply hole 52: Ring 521: Notch 60: Internal water supply ring 61: Internal water supply hole 70: Water stop screw 80: Cooling nozzle 81: Nozzle flow channel 82: Nozzle outlet 83: Nozzle screw 90, 90A: Tool bar assembly 91, 91A: Tool bar 92, 92A: Tool 93: Clamping cover A: Secant G1: Annular gap G2: External water supply gap G3: Central water supply gap G4: Internal water supply gap

Figure 1 is a three-dimensional exterior view of a preferred embodiment of the present invention. Figure 2 is a three-dimensional cross-sectional view of the preferred embodiment of the present invention from another angle. Figure 3 is an exploded view of the blade housing, spacer ring, outer water supply ring, and inner water supply ring of the preferred embodiment of the present invention. Figure 4 is a side cross-sectional view of the preferred embodiment of the present invention. Figure 5 is a cross-sectional view taken along line A-A in Figure 4. Figure 6 is a schematic diagram of the preferred embodiment of the present invention in use. Figure 7 is a schematic diagram of the preferred embodiment of the present invention installing another blade bar assembly.

10: Knife holder

20: Knife sheath

21: Storage Tank

22: Knife sleeve flow channel

30: Body

31: Cooling channel

311: Water Inlet

40: Spacer Ring

50: External water supply ring

60: Internal water supply ring

70: Waterstop screw

80: Cooling nozzle

81: Nozzle flow channel

83: Spray head screw

Claims (10)

A tool bar mounting device with a cooling effect comprises: a tool holder seat comprising a body and a cooling channel extending from a surface of the body toward the inside of the body; and a tool holder disposed within the tool holder seat and comprising a receiving groove and a tool holder flow channel. The receiving groove can accommodate a tool bar assembly. The tool holder flow channel is formed in a portion of the tool holder located within the tool holder seat and extends inward from a surface of the tool holder to communicate with the receiving groove. The tool holder flow channel is connected to the cooling channel of the tool holder seat. As described in claim 1, the tool rod mounting device with cooling effect, wherein the tool sleeve seat includes a spacer ring sleeve, the spacer ring sleeve is against the inner side of the main body of the tool sleeve seat and surrounds the tool sleeve, and the spacer ring sleeve is provided with at least one through hole, so that the cooling liquid can flow from the cooling channel of the tool sleeve seat through the through hole to the tool sleeve flow channel. As described in claim 2, the tool rod mounting device with cooling effect, wherein an annular gap is formed around the spacer ring and the tool holder seat, and the annular gap is connected to the cooling channel of the tool holder seat and the through hole. A tool rod mounting device with a cooling effect as described in claim 2, wherein the tool sleeve seat includes an outer water supply ring and an inner water supply ring, the inner water supply ring is arranged on the tool sleeve, the outer water supply ring is arranged on the inner water supply ring, and is against the inner circumference of the spacer ring, the outer water supply ring is provided with at least one outer water supply hole, and the inner water supply ring is provided with at least one inner water supply hole, so that the cooling liquid can flow from the through hole of the spacer ring through the outer water supply hole and the inner water supply hole to the tool sleeve flow channel. As described in claim 4, the tool bar mounting device with cooling effect, wherein an annular external water supply gap is formed between the external water supply ring and the spacer ring sleeve, and the external water supply gap is connected to the through hole and the external water supply hole of the external water supply ring. As described in claim 4, the tool bar mounting device with cooling effect, wherein a ring-shaped central water supply gap is formed between the outer water supply ring and the inner water supply ring, and the central water supply gap is connected to the outer water supply hole of the outer water supply ring and the inner water supply hole of the inner water supply ring. As described in claim 4, the tool rod mounting device with cooling effect, wherein an annular internal water supply gap is formed between the inner water supply ring and the tool sleeve, and the internal water supply gap is connected to the inner water supply hole of the inner water supply ring and the tool sleeve flow channel of the tool sleeve. As described in claim 4, the tool rod mounting device with cooling effect, wherein the external water supply ring includes two ring bodies, each of which has at least one notch, and the two ring bodies are combined, and the notches of the two ring bodies are connected to form the external water supply hole. A tool arbor mounting device with a cooling effect as described in any one of claims 1 to 8, wherein the tool sleeve flow channel includes at least one radial section and an axial section, the radial section extends radially inward from the outer periphery of the tool sleeve, the axial section extends axially from the radial section to the receiving groove and is provided with an internal thread, and the tool arbor mounting device includes a water stop screw, which can be selectively screwed into the axial section. A tool bar mounting device with a cooling effect as described in any one of claims 1 to 8 includes a cooling nozzle, which is connected to the body of the tool holder and has a nozzle flow channel provided inside. One end of the nozzle flow channel is connected to and communicates with the cooling channel, and the other end of the nozzle flow channel forms a nozzle outlet, which can spray coolant toward the tool bar assembly.