Cutter bar mounting device with cooling effect

Abstract

The utility model provides a cutter bar installation device with cooling effect, which comprises a cutter sleeve seat and a cutter sleeve, the cutter sleeve seat comprises a body and a cooling channel, the body can be fixed on a rotary disc cutter tower, the cooling channel is formed by extending from the surface of the body to the inside of the body, the cutter sleeve is arranged in the cutter sleeve seat, the cutter sleeve comprises a containing groove and a cutter sleeve flow channel, and the containing groove is communicated with the cutter sleeve flow channel. The containing groove can contain the cutter bar assembly, the cutter sleeve flow channel extends inwards from the surface of the cutter sleeve to be communicated with the containing groove, and the cutter sleeve flow channel is communicated with the cooling channel of the cutter sleeve base. Cooling liquid can be supplied to the cutter bar assembly with the inner cooling flow channel for use through the cooling channel of the cutter sleeve seat and the cutter sleeve flow channel of the cutter sleeve, compared with an existing machining machine with a rotary disc cutter tower, the outer spray head independent of the cutter bar installation device is adopted, the cooling effect is limited, the cooling effect can be improved, and the machining efficiency is improved. And the service life of the tool applied to the rotary disc tool turret is prolonged.

Description

[Technical Field]

[0001] This utility model relates to components for setting up tool holders and cutting tools in machining machines, and particularly to a tool holder mounting device with a cooling effect. [Background Technology]

[0002] To achieve multiple processing capabilities, machining machines are generally equipped with multiple tool holders that hold different types of cutting tools. One existing machining machine design has a rotary turret, and multiple tool holder mounting devices (or tool sleeve assemblies) are set on the outer edge of the rotary turret to install different tool holders and cutting tools. By rotating the rotary turret, different tools can be aligned with the workpiece for processing.

[0003] In existing machining centers employing rotary turrets, the cooling system typically involves adding nozzles around the tool holder mounting device or the rotary turret to spray coolant towards the machining area where the tool contacts the workpiece. However, cooling via separate nozzles only cools the outer portion of the tool in contact with the workpiece, and the coolant may be blocked by chips generated during machining, resulting in limited cooling effectiveness. In view of these problems, the inventors of this invention conducted in-depth research into this issue, leading to this application. [Utility Model Content]

[0004] The technical problem to be solved by this utility model is to provide a tool holder mounting device with a cooling effect, which solves the problem that the cooling effect of existing machining machines using rotary turrets is limited due to the addition of independent nozzles for cooling.

[0005] This utility model is implemented as follows: a tool holder mounting device with a cooling effect, comprising:

[0006] A tool holder, the tool holder comprising a body and a cooling channel, the cooling channel extending from the surface of the body toward the body;

[0007] A tool holder is disposed within a tool holder seat. The tool holder includes a receiving groove and a tool holder flow channel. The receiving groove can accommodate a tool holder assembly. The tool holder flow channel is formed in the portion of the tool holder located within the tool holder seat and extends inward from the 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.

[0008] Furthermore, the tool holder includes a spacer ring that abuts against the inner side of the tool holder body and surrounds the tool holder. The spacer ring has at least one through hole, allowing coolant to flow from the cooling channel of the tool holder through the through hole to the tool holder flow channel.

[0009] Furthermore, an annular gap is formed between the spacer ring and the tool holder, and the annular gap connects the cooling channel and the through hole of the tool holder.

[0010] Furthermore, the tool holder includes an outer water supply ring and an inner water supply ring, with the inner water supply ring sleeved on the tool holder; the outer water supply ring is sleeved on the inner water supply ring and abuts against the inner circumferential surface of the spacer ring, with the outer water supply ring having at least one external water supply hole and the inner water supply ring having at least one internal water supply hole, so that the coolant can flow from the through hole of the spacer ring through the external water supply hole and the internal water supply hole to the tool holder flow channel.

[0011] Furthermore, an annular external water supply gap is formed between the external water supply ring and the spacer ring, and the external water supply gap connects the through hole and the external water supply hole of the external water supply ring.

[0012] Furthermore, a central water supply gap is formed between the outer water supply ring and the inner water supply ring, and the central water supply gap connects the outer water supply hole of the outer water supply ring and the inner water supply hole of the inner water supply ring.

[0013] Furthermore, an annular inner water supply gap is formed between the inner water supply ring and the cutter sleeve, and the inner water supply gap connects the inner water supply hole of the inner water supply ring and the cutter sleeve flow channel of the cutter sleeve.

[0014] Furthermore, the external water supply ring includes two ring bodies, each with at least one notch recessed on it. The two ring bodies are joined together, and the notches of the two ring bodies are spliced ​​together to form an external water supply hole.

[0015] Furthermore, the tool holder flow channel includes at least one radial section and one axial section. The radial section extends radially inward from the outer periphery of the tool holder, and the axial section extends axially from the radial section to the receiving groove. The axial section is provided with internal threads. The tool holder mounting device also includes a water-stop screw, which can be selectively screwed into the axial section.

[0016] Furthermore, it also includes a cooling nozzle, which is connected to the body of the tool holder and has a nozzle flow channel 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 spray outlet that can spray coolant toward the tool holder assembly.

[0017] By adopting the technical solution of this utility model, at least the following beneficial effects are achieved: By designing a cooling channel on the body of the tool holder and a tool holder flow channel on the tool holder, a route can be formed to supply coolant to the tool holder assembly. Therefore, the tool holder mounting device of this utility model can be used with a tool holder assembly with an internal cooling flow channel to cool the tool holder and tool in an internal cooling manner and to cool the machining position. Compared with the independent external nozzles used in existing machining machines with rotary turrets, this utility model can effectively improve the cooling effect, reduce the occurrence of thermal deformation of the tool, and thus extend the service life of the tool used in rotary turrets. [Attached Image Description]

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0020] Figure 2 This is a perspective sectional view of a preferred embodiment of the present invention.

[0021] Figure 3 This is an exploded view of the blade sleeve, spacer ring sleeve, outer water supply ring, and inner water supply ring of a preferred embodiment of the present invention.

[0022] Figure 4 This is a side sectional view of a preferred embodiment of the present invention.

[0023] Figure 5 It is along Figure 4 A cross-sectional view of the AA secant line.

[0024] Figure 6 This is a schematic diagram illustrating the use of a preferred embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of a preferred embodiment of the present invention with another tool holder assembly installed.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10: Knife Sheath Holder

[0028] 20: Knife Sheath

[0029] 21: Container

[0030] 22: Tool holder flow channel

[0031] 221: Radial segment

[0032] 222: Axial segment

[0033] 30:Ontology

[0034] 31: Cooling Channel

[0035] 311: Inlet

[0036] 40: Spacer ring

[0037] 41: Through hole

[0038] 50: External water supply ring

[0039] 51: External water supply hole

[0040] 52: Ring body

[0041] 521: Gap

[0042] 60: Internal water supply ring

[0043] 61: Internal water supply hole

[0044] 70: Water-stop screw

[0045] 80: Cooling nozzle

[0046] 81: Nozzle flow channel

[0047] 82: Spray outlet

[0048] 83: Sprayer head screw

[0049] 90, 90A: Tool holder assembly

[0050] 91, 91A: Tool holder

[0051] 92, 92A: Cutting tools

[0052] 93: Tighten the lid

[0053] A: Dividing line

[0054] G1: Annular gap

[0055] G2: External water supply gap

[0056] G3: Central water supply gap

[0057] G4: Internal water supply gap.

Detailed Implementation Methods

[0058] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0060] This utility model discloses a tool holder mounting device with a cooling effect. The tool holder mounting device is mounted on a turret of a CNC lathe. By using multiple tool holder mounting devices, tool holders with different tools can be positioned on the outer periphery of the turret, arranging the tools in a ring. This allows the rotation of the turret to align different tools with the workpiece for various machining operations. Figure 1 As shown, a preferred embodiment of the tool holder 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.

[0061] like Figure 1 , Figure 2 and Figure 4 As shown, the tool holder 10 includes a body 30 and a cooling channel 31. The body 30 has multiple connecting holes through which multiple bolts can be inserted to fix the body 30 to the rotary turret. The interior of the body 30 is hollow and can accommodate different components such as the tool holder 20 and bearings. The cooling channel 31 extends from the surface of the body 30 to the interior of the body 30, such as... Figure 2 As shown, the cooling channel 31 forms a water inlet 311 on the surface of the body 30. The water inlet 311 and a coolant source can be connected by a pipe to enable the coolant to be input into the interior of the body 30 through the cooling channel 31.

[0062] like Figure 2 and Figure 4 As shown, the blade sleeve 20 is rotatably disposed within the body 30, and a bearing is provided between the blade sleeve 20 and the body 30 to hold the blade sleeve 20 on the axis of the blade sleeve seat 10; the blade sleeve 20 includes a receiving groove 21 and a blade sleeve flow channel 22. The receiving groove 21 extends inward from one end of the blade sleeve 20 and can accommodate a blade bar. In a preferred embodiment of the present invention, the interior of the receiving groove 21 has a conical profile, and the inner diameter of the receiving groove 21 gradually decreases inward from one end of the blade sleeve 20, so as to be tightly combined with the blade bar with a conical shape.

[0063] like Figures 2 to 5 As shown, the tool holder flow channel 22 extends inward from the outer periphery of the tool holder 20 to the receiving groove 21 and is connected to the receiving groove 21. The tool holder flow channel 22 is also connected to the cooling channel 31 of the body 30. In this way, the coolant enters the cooling channel 31 from the inlet 311, flows into the body 30 of the tool holder 10, and then flows into the tool holder flow channel 22 of the tool holder 20. After that, it flows into the receiving groove 21 and cools the tool holder and the tool contained in the receiving groove 21.

[0064] Specifically, such as Figure 6As shown, when installing a tool on the tool holder mounting device, the groove 21 of the tool holder 20 accommodates a tool holder 91 of a tool holder assembly 90. By screwing a clamping cap 93 onto the tool holder 20, and with the groove 21 having a conical profile inside, the tool holder 91 can be limited and fixed inside the groove 21. When machining with the tool 92 on the tool holder 91, coolant is input from the inlet 311, passes through the cooling channel 31 and the tool holder flow channel 22 of the tool holder 20, and enters the groove 21. With the internal cooling flow channel designed on the tool holder assembly 90, the coolant can flow directly through the tool holder 91 or further through the tool 92 for cooling, and spray directly at the machining position at a relatively close distance, which can effectively cool down the tool and facilitate the removal of chips.

[0065] By designing a cooling channel 31 on the body 30 of the tool holder 10 and a tool holder flow channel 22 on the tool holder 20, a route can be formed to supply coolant to the tool holder assembly 90. In this way, the tool holder mounting device of this utility model can be used with the tool holder assembly 90 with an internal cooling flow channel to cool the tool holder 91 and the tool 92 in an internal cooling manner and to cool the machining position. Compared with the independent external nozzle used in existing machining machines with rotary turrets, this utility model can effectively improve the cooling effect, reduce the occurrence of thermal deformation of the tool, and thus extend the service life of the tool used in rotary turrets.

[0066] like Figures 2 to 5 As shown, in a preferred embodiment of this utility model, the tool holder 10 further includes a spacer ring 40, an outer water supply ring 50, and an inner water supply ring 60. The spacer ring 40, the outer water supply ring 50, and the inner water supply ring 60 are disposed between the body 30 of the tool holder 10 and the tool holder 20. Through the structural design of the spacer ring 40, the outer water supply ring 50, and the inner water supply ring 60, a flow path is formed in the tool holder flow channel 22 that connects the cooling channel 31 and the tool holder 20.

[0067] Among them, such as Figures 3 to 5 As shown, the spacer ring 40 abuts against the inner surface of the body 30 and surrounds the blade sleeve 20. Multiple through holes 41 are provided through the spacer ring 40, each extending along a different radial direction of the blade sleeve 20. This allows coolant to flow inward through the spacer ring 40 via the through holes 41 in different radial directions. Specifically, as shown... Figure 5 As shown, an annular gap G1 is formed between the body 30 of the tool holder 10 and the spacer ring 40. The cooling channel 31 extends to the annular gap G1, so that the annular gap G1 connects the cooling channel 31 and each through hole 41 of the spacer ring 40.

[0068] like Figures 3 to 5As shown, the outer water supply ring 50 and the inner water supply ring 60 are disposed between the spacer ring 40 and the cutter sleeve 20. The inner water supply ring 60 is sleeved on the cutter sleeve 20, and the outer water supply ring 50 is sleeved on the inner water supply ring 60. The outer water supply ring 50 abuts against the inner circumferential surface of the spacer ring 40. The outer water supply ring 50 is provided with multiple outer water supply holes 51, and the inner water supply ring 60 is provided with multiple inner water supply holes 61. Each outer water supply hole 51 and each inner water supply hole 61 are provided along different radial directions of the cutter sleeve 20. In this way, 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 cutter sleeve flow channel 22 of the cutter sleeve 20.

[0069] Specifically, such as Figure 5 As shown, an annular outer water supply gap G2 is formed between the outer water supply ring 50 and the spacer ring 40, and the outer water supply gap G2 connects each outer water supply hole 51 and each through hole 41; an annular central water supply gap G3 is formed between the outer water supply ring 50 and the inner water supply ring 60, and the central water supply gap G3 connects each outer water supply hole 51 and each inner water supply hole 61; an annular inner water supply gap G4 is formed between the inner water supply ring 60 and the cutter sleeve 20, and the inner water supply gap G4 connects each inner water supply hole 61 and the cutter sleeve flow channel 22 of the cutter sleeve 20.

[0070] In a preferred embodiment of this utility model, through the aforementioned annular gaps, even if the openings of the through holes 41, the outer water supply hole 51, the inner water supply hole 61, and the tool holder flow channel 22 are not in the same radial direction, the coolant can still flow smoothly inward to the tool holder flow channel 22 of the tool holder 20 to supply the inner cooling flow channel of the tool holder assembly 90. The operation of installing the spacer ring 40, the outer water supply ring 50, and the inner water supply ring 60 is more convenient. Furthermore, through the annular gaps, the spacer ring 40, the outer water supply ring 50, and the inner water supply ring 60 can also be kept at a lower temperature, avoiding the heat generated by the rotation of the tool holder 20 within the body 30, which could cause the temperature inside the body 30 to become too high.

[0071] Furthermore, such as Figure 3 As shown, the outer water supply ring 50 includes two ring bodies 52, each of which has multiple recesses 521. The two ring bodies 52 are joined symmetrically, such that each recess 521 on one ring body 52 is joined with a corresponding recess 521 on the other ring body 52 to form an outer water supply hole 51. When the outer water supply ring 50 is relatively thick, by machining multiple recesses 521 on the two ring bodies 52 and joining the recesses 521 on the two ring bodies 52 to form the outer water supply hole 51, the machining resistance is smaller than that of directly machining a through hole in a single ring body, and the outer water supply ring 50 and the outer water supply hole 51 can maintain higher precision.

[0072] Furthermore, in a preferred embodiment of this utility model, at least one O-ring is provided between the body 30 of the tool holder 10 and the spacer ring 40, between the spacer ring 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, and ensures that all coolant can be supplied to the inner cooling channel of the tool holder assembly 90 through the aforementioned coolant flow path.

[0073] like Figure 2 and Figure 4 As shown, preferably, the tool holder mounting device further includes a water-stop screw 70, which can be disposed in the tool sleeve flow channel 22. Specifically, the tool sleeve flow channel 22 includes multiple radial sections 221 and an axial section 222. Each radial section 221 extends 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 internal threads. The water-stop screw 70 can be selectively screwed into the axial section 222.

[0074] When the internal cooling channel is not in use, the water-stop screw 70 can be screwed into the axial section 222 through the opening of the groove 21 to prevent coolant from spraying out. When the internal cooling channel is needed, the water-stop screw 70 can be loosened from the axial section 222 and taken out through the groove 21. Then the tool holder assembly 90 can be installed into the groove 21, and the coolant can be supplied to the internal cooling channel of the tool holder assembly 90 through the cooling channel 31 of the body 30, the flow path in the tool holder seat 10, and the tool holder flow channel 22.

[0075] In addition, such as Figure 2 , Figure 4 and Figure 6 As shown, in a preferred embodiment of this utility model, the tool holder mounting device further includes a cooling nozzle 80. The cooling nozzle 80 is disposed on the body 30 of the tool holder 10, and the cooling nozzle 80 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 spray outlet 82. After the coolant enters the cooling channel 31 from the inlet 311, it is divided. One part flows through the flow path between the body 30 and the tool holder 20 to the aforementioned internal cooling flow channel, and the other part enters the nozzle flow channel 81 and is sprayed from the spray outlet 82 of the nozzle flow channel 81 toward the tool 92 of the tool holder assembly 90, which can be used together with the aforementioned internal cooling flow channel for cooling.

[0076] Specifically, the cooling nozzle 80 has a spherical structure, which is movably disposed within a recess in the body 30. A screw fixed to the body 30 abuts against the spherical structure to prevent the movable cooling nozzle 80 from dislodging from the recess. This allows the angle and positioning of the cooling nozzle 80 to be adjusted as needed, ensuring the coolant is sprayed to the appropriate location for cooling. More preferably, as... Figure 2 and Figure 4 As shown, the cooling nozzle 80 may also include a nozzle screw 83, which may be selectively located at the nozzle outlet 82 of the nozzle flow channel 81. It may be determined whether to use the aforementioned internal cooling flow channel, cooling nozzle 80, or both together as needed.

[0077] like Figure 7 As shown, this is a schematic diagram of a preferred embodiment of the present invention with another tool holder assembly 90A installed. Figure 6 In the tool holder assembly 90 shown, the tool 92 is a six-flute end mill, which is elongated, and correspondingly, the tool holder 91 has an elongated hole extending along the axial direction for mounting the tool holder 91. An internal cooling channel is formed through the tool holder 91 and the tool 92; while Figure 7 The tool holder assembly 90A shown includes two cutting tools 92A, each of which is a lathe tool insert. The tool holder 91A is a lathe tool holder with grooves for mounting the two cutting tools 92A. An internal cooling channel is formed on the tool holder 91A, and its opening faces the two cutting tools 92A.

[0078] Furthermore, in the preferred embodiment of this utility model, the tool holder assembly, in addition to the aforementioned tool holder and tool, may also include other components for fixing the tool, such as a collet and a clamping nut. The specific components included in the tool holder assembly depend on the type of tool used and the method of fixing the tool. The form of the internal cooling channel can also be designed according to the cooling requirements, and is not limited to... Figure 6 , Figure 7 The tool holder assemblies 90 and 90A shown are limited to this.

[0079] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A tool bar mounting device having a cooling effect, characterized in that include: A tool holder, the tool holder comprising a body and a cooling channel, the cooling channel extending from the surface of the body toward the body; A tool holder is disposed within a tool holder seat. The tool holder includes a receiving groove and a tool holder flow channel. The receiving groove can accommodate a tool holder assembly. The tool holder flow channel is formed in the portion of the tool holder located within the tool holder seat and extends inward from the 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.

2. A tool bar mounting device having a cooling effect as claimed in claim 1, characterized in that: The tool holder seat includes a spacer ring that abuts against the inner side of the tool holder seat body and surrounds the tool holder. The spacer ring has at least one through hole, allowing coolant to flow from the cooling channel of the tool holder seat through the through hole to the tool holder flow channel.

3. A tool bar mounting device having a cooling effect as claimed in claim 2, characterized in that: The spacer ring and the tool holder form an annular gap, which connects the cooling channel and the through hole of the tool holder.

4. The tool bar mounting apparatus with cooling effect of claim 2, wherein: The tool holder includes an outer water supply ring and an inner water supply ring, with the inner water supply ring sleeved on the tool holder. The outer water supply ring is sleeved on the inner water supply ring and abuts against the inner circumferential surface of the spacer ring. The outer water supply ring has at least one external water supply hole, and the inner water supply ring has at least one internal water supply hole, so that the coolant can flow from the through hole of the spacer ring through the external water supply hole and the internal water supply hole to the tool holder flow channel.

5. A tool bar mounting device having a cooling effect as claimed in claim 4, characterized in that: The outer water supply ring and the spacer ring form an annular outer water supply gap, which connects the through hole and the outer water supply hole of the outer water supply ring.

6. The tool holder mounting device with cooling effect as described in claim 4, characterized in that: The outer water supply ring and the inner water supply ring form a central water supply gap, which connects the outer water supply hole of the outer water supply ring and the inner water supply hole of the inner water supply ring.

7. The tool bar mounting apparatus with cooling effect of claim 4, wherein: The inner water supply ring and the cutter sleeve form an annular inner water supply gap, which connects the inner water supply hole of the inner water supply ring and the cutter sleeve flow channel of the cutter sleeve.

8. The tool bar mounting apparatus with cooling effect of claim 4, wherein: The external water supply ring includes two ring bodies, each with at least one notch recessed on it. The two ring bodies are joined together, and the notches of the two ring bodies are spliced ​​together to form an external water supply hole.

9. A tool bar mounting arrangement having a cooling effect according to any one of claims 1 to 8, wherein: The tool holder flow channel includes at least one radial section and one axial section. The radial section extends radially inward from the outer periphery of the tool holder, and the axial section extends axially from the radial section to the receiving groove. The axial section is provided with internal threads. The tool holder mounting device also includes a water-stop screw, which can be selectively screwed into the axial section.

10. A tool bar mounting arrangement having a cooling effect according to any one of claims 1 to 8, wherein: It also includes a cooling nozzle, which is connected to the body of the tool holder and has a nozzle flow channel 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 spray outlet that can spray coolant toward the tool holder assembly.

Images