Internal cooling turning tool handle with lubricating function

Abstract

The utility model discloses an internal cooling turning tool handle with a lubricating function, which comprises a tool handle and a tool bit, the tool bit is arranged at the front end of the tool handle, a tool body mounting boss is arranged on one side of the tool bit far away from the tool handle, a tool body mounting groove is arranged on the tool body mounting boss, a cooling liquid spray hole is arranged on the tool bit, and a cooling liquid receiving hole is arranged at the rear end of the tool handle. A first cooling liquid channel communicated with the cooling liquid connecting hole is arranged in the cutter handle, a second cooling liquid channel communicated with the cooling liquid spraying hole is arranged in the cutter head, and the first cooling liquid channel is communicated with the second cooling liquid channel. The inner-cooling turning tool handle can meet the machining requirements of parts with deep groove structures, can be installed according to different tool turret directions, can spray liquid through the cooling liquid spraying holes, effectively lubricates the tool body, can prolong the service life of a tool and reduce the machining cost, and is simple in overall structure, reasonable in design, convenient to use, economical and practical. And the machining requirements of parts with deep groove structures can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC lathe tools, in particular to an internally cooled lathe tool holder with a lubricating function. Background Art

[0002] CNC lathes are lathes controlled by computers. They are highly efficient and automated equipment that automatically processes workpieces according to pre-programmed CNC programs. CNC lathes are mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads. They can also perform grooving, drilling, reaming, reaming and boring. The working principle of CNC lathes is to compile the processing route, process parameters, tool motion trajectory, displacement, cutting parameters and auxiliary functions of parts into a processing program sheet according to the instruction code and program format specified by the CNC lathe, and then record the contents of this program sheet on the control medium, and then input it into the CNC device of the CNC lathe, thereby commanding the lathe to process parts.

[0003] For a long time, machining tools have been widely used in the field of CNC lathe machining. In turning machining, cutting heat has always been a key factor affecting the machining surface quality and tool life. Ordinary external cylindrical turning tools include an integrally formed tool handle and tool head, as well as a tool body, and also include a fixing structure for locking the tool body in the tool groove on the tool head. During the turning process of the external cylindrical turning tool, the tool body and the object are in intense friction, which causes the local temperature of the tool body and the tool head to rise. The tool head and tool body become brittle and are prone to breakage, which reduces the service life of the external cylindrical turning tool and increases the machining cost. Figure 1 The part shown is a part with a deep groove structure. When processing such a round bottom end face deep groove part, using the existing tool body and CNC lathe, it is impossible to purchase a replacement turning tool holder with an internal cooling structure on the market. If the tool holder does not have an internal cooling function, it will not only fail to effectively remove the heat at the tool tip in the tool body, but also fail to provide effective lubrication between the tool and the part, resulting in large and fast wear of the tool body, and the need to constantly replace the new tool body, which not only increases the processing cost, but also affects the processing size and processing accuracy of the part. Therefore, in order to meet the processing requirements of such parts, improve the processing accuracy of the parts, and reduce the processing cost, an internal cooling turning tool holder with lubrication function is designed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to address the problems existing in the background technology, thereby providing a turning tool holder with a simple structure and stable performance. The turning tool holder is used in combination with an existing tool body, which can not only effectively take away the heat at the tool tip in the tool body, but also provide effective lubrication between the tool and the part, thereby meeting the processing requirements of parts with deep groove structures. Specifically, it is an internally cooled turning tool holder with a lubrication function.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an internally cooled turning tool holder with lubrication function, comprising a tool holder and a tool head, the tool head is arranged at the front end of the tool holder, a tool body mounting boss is arranged on the side of the tool head away from the tool holder, a tool body mounting groove is arranged on the tool body mounting boss, a coolant spray hole is arranged on the tool head, and a coolant connection hole is arranged at the rear end of the tool holder, a first coolant channel communicating with the coolant connection hole is arranged in the tool holder, and a second coolant channel communicating with the coolant spray hole is arranged in the tool head, and the first coolant channel is communicated with the second coolant channel.

[0006] Furthermore, an internally cooled turning tool holder with lubrication function as described in the utility model is adopted, the tool head includes a connecting portion and a supporting portion, the connecting portion and the supporting portion constitute an axial cutting depth structure with an L-shaped cross-section, the tool head is connected to the tool holder through the connecting portion, and the tool body mounting boss is arranged on the front end side surface of the supporting portion.

[0007] Furthermore, an internally cooled turning tool holder with lubrication function as described in the utility model is adopted, an outer side of the tool body mounting boss is provided with an outer arc transition portion, and an inner side thereof is provided with an inner arc transition portion, and an inwardly recessed chip removal transition portion is provided on the front end surface of the tool body mounting boss, and the chip removal transition portion is arranged on the tool body mounting boss toward the outside of the tool head; and the tool body mounting groove is located on the tool body mounting boss outside the chip removal transition portion.

[0008] Furthermore, the utility model discloses an internally cooled turning tool holder with lubrication function, wherein a plurality of coolant connection holes are provided, and the plurality of coolant connection holes are evenly arranged along the circumference of the tool holder on the side of the tool holder away from the tool head; and a single coolant spray hole is provided, and the coolant spray hole is arranged on the tool head toward the side of the tool body mounting groove.

[0009] Furthermore, the internally cooled turning tool holder with lubrication function described in the utility model is adopted, and sealing gaskets are respectively arranged at the coolant connection hole and the coolant spray hole, and the sealing gaskets are fixedly connected to the coolant connection hole and the coolant spray hole.

[0010] Furthermore, the internally cooled turning tool handle with lubrication function described in the utility model is adopted, and the tool handle, tool head and tool body mounting boss are made of cemented carbide material to form an integrated structure.

[0011] The utility model discloses an internally cooled turning tool holder with lubrication function. A coolant spray hole is provided on the side facing the tool body mounting groove, and a plurality of coolant connection holes are arranged at the tail of the tool holder. The coolant connection hole and the coolant spray hole are connected through a first coolant channel and a second coolant channel. The coolant connection hole arranged at the tail of the tool holder is used to connect the machine tool cooling system. The coolant spray hole is used to spray coolant on the tool head at the front end of the tool holder. This can not only take away the processing heat and wash away the iron filings generated during processing, but also effectively lubricate the tool body, thereby protecting the tool surface coating, which can greatly improve the service life of the tool body. Compared with the existing ordinary tool holders, since the water outlet of the ordinary tool holder at the turret is far from the cutting position, when deep groove processing is performed on the parts, the coolant cannot directly reach the processing position and cannot effectively cool the processing position.

[0012] It can be seen that the internal cooling turning tool holder described in the utility model can not only meet the processing requirements of parts with deep groove structures, but also can be installed according to different turret orientations, thereby meeting the installation requirements of different turret orientations, and the tool body mounting boss arranged on the tool head is not only convenient for installing the tool body, but also can reduce the vibration problem of the tool during part processing, thereby improving the surface finish of the part, and the coolant is transported through the coolant channel and sprayed through the coolant spray hole to effectively lubricate the tool body, which can protect the tool surface coating, thereby increasing the tool life and reducing processing costs. It has strong practicality, simple overall structure, reasonable design, can meet the processing requirements of parts with deep groove structures, and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the part to be processed;

[0015] Figure 2 This is a schematic diagram of the structure of the internal cooling turning tool handle of the utility model. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of the internal cooling turning tool handle of the utility model. Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the structure of the internal cooling turning tool handle of the utility model. Figure 3 ;

[0018] Figure 5 It is a structural schematic diagram of the tool body mounting boss described in the utility model;

[0019] Figure 6 It is a schematic structural diagram of the internal cooling turning tool handle of the utility model when in use.

[0020] As shown in the figure: 1-tool handle, 11-coolant connection hole, 2-tool head, 21-coolant spray hole, 22-connecting part, 23-supporting part, 3-tool body mounting boss, 31-tool body mounting groove, 32-outer arc transition part, 33-inner arc transition part, 34-chip removal transition part. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantial change in the technical content, should also be regarded as the scope of the implementation of the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. Example 1

[0025] like Figures 2 to 5As shown, an internally cooled turning tool holder with lubrication function described in this embodiment includes a tool holder 1 and a tool head 2, wherein the tool head 2 is arranged at the front end of the tool holder 1, and a tool body mounting boss 3 is arranged on the side of the tool head 2 away from the tool holder 1, and a tool body mounting groove 31 is arranged on the tool body mounting boss 3, and a coolant spray hole 21 is provided on the tool head 2, and the coolant spray hole 21 is arranged on the tool head 2 toward the side of the tool body mounting groove 31; and a coolant connection hole 11 is provided at the rear end of the tool holder 1, a first coolant channel communicating with the coolant connection hole 11 is provided in the tool holder 1, and a second coolant channel communicating with the coolant spray hole 21 is provided in the tool head 2, and the first coolant channel is communicated with the second coolant channel. Among them, the cutter head 2 includes a connecting portion 22 and a supporting portion 23, and the connecting portion 22 and the supporting portion 23 constitute an axial cutting depth structure with an L-shaped cross-section. The cutter head 2 is connected to the tool handle 1 through the connecting portion 22, and the tool body mounting boss 3 is arranged on the front end side of the supporting portion 23.

[0026] Furthermore, an internally cooled turning tool holder with lubrication function described in this embodiment is adopted, an outer arc transition portion 32 is provided on the outer side of the tool body mounting boss 3, and an inner arc transition portion 33 is provided on the inner side thereof, and an inwardly recessed chip removal transition portion 34 is provided on the front end surface of the tool body mounting boss 3, and the chip removal transition portion 34 is arranged on the tool body mounting boss 3 toward the outer side of the cutter head 2; and the tool body mounting groove 31 is located on the tool body mounting boss 3 outside the chip removal transition portion 34. The inwardly recessed chip removal transition portion 34 can not only ensure that the tool body mounting boss 3 does not interfere with the part to be processed, but also achieve the purpose of smooth chip removal. At the same time, the outer arc transition part 32 and the inner arc transition part 33 corresponding to the end face groove of the part to be processed can be set in advance in the tool body mounting boss 3, so as to control the rotational diameter of the internal cooling tool holder. This can maximize the tool body thickness, thereby reducing the vibration problem of the tool during part processing, thereby improving the surface finish of the part.

[0027] Furthermore, the internally cooled turning tool handle with lubrication function described in this embodiment is used, and the tool handle 1, the tool head 2 and the tool body mounting boss 3 are made of cemented carbide material to form an integrated structure, and the tool handle 1, the tool head 2 and the tool body mounting boss 3 can also be made into an integrated structure by welding. The integrated structure can improve its overall strength. Example 2

[0028] This embodiment is based on the embodiment 1. In order to meet the installation requirements of different turret orientations, the coolant connection holes 11 are provided in plurality. The plurality of coolant connection holes 11 are evenly arranged along the circumference of the shank 1 on the side of the shank 1 away from the cutter head 2. The plurality of coolant connection holes 11 arranged at the tail of the shank 1 can be used for installation in different turret orientations, thereby meeting the installation requirements of different turret orientations, which can greatly improve the clamping efficiency. Example 3

[0029] This embodiment is based on the embodiment 2. In order to avoid leakage and further ensure the sealing effect, sealing gaskets are respectively arranged at the coolant connection hole 11 and the coolant spray hole 21, and the sealing gaskets are fixedly connected to the coolant connection hole 11 and the coolant spray hole 21. In the specific manufacturing process, a conical pit can be opened on the coolant connection hole 11, and a conical protrusion is fixedly connected to the coolant spray hole 21. The conical protrusion is adapted to the conical pit, and the taper of the two fits to avoid leakage. The taper fits to achieve the effect of self-adjusting the fit clearance; since sealing gaskets are respectively arranged at the coolant connection hole 11 and the coolant spray hole 21, the configured sealing gaskets can be respectively connected to the conical pit on the coolant connection hole 11 and the conical protrusion on the coolant spray hole 21, and the sealing effect can be improved by the fixedly connected sealing gaskets.

[0030] By adopting the internal cooling turning tool holder with lubrication function described in the utility model, in order to reduce the cutting depth of the tool holder 1 as much as possible and enhance its stability according to the processing depth and processing diameter of the part, the problem can be solved by increasing the rotational thickness of the tool holder 1, thereby configuring a tool body mounting boss 3 on the tool head 2, and providing a tool body mounting groove 31 on the tool body mounting boss 3, so that the existing tool body can be installed in the tool body mounting groove 31.

[0031] like Figure 6 As shown, in the actual processing, since a coolant spray hole 21 is provided on the side facing the tool body mounting groove 31, and a plurality of coolant connection holes 11 are arranged at the tail of the tool handle 1, the coolant connection hole 11 and the coolant spray hole 21 are connected through the first coolant channel and the second coolant channel. During processing, the coolant connection hole 11 arranged at the tail of the tool handle 1 is used to connect the existing machine tool cooling system, and the coolant spray hole 21 is used to spray high-pressure coolant on the tool head 2 at the front end of the tool handle 1, which can not only take away the processing heat and wash away the iron filings generated during processing, but also effectively lubricate the tool body, thereby protecting the tool surface coating, which can greatly improve the service life of the tool body. Compared with the existing ordinary tool handles, the internal cooling turning tool handle of the utility model is far away from the cutting position because the water outlet of the ordinary tool handle at the turret is far away from the cutting position. When deep groove processing is performed on the parts, the coolant cannot directly reach the processing position and cannot effectively cool the processing position.

[0032] To sum up, the internal cooling turning tool holder described in the utility model can not only meet the processing requirements of parts with deep groove structures, but also can be installed according to different turret orientations, thereby meeting the installation requirements of different turret orientations, and the tool body mounting boss arranged on the tool head is not only convenient for installing the tool body, but also can reduce the vibration problem of the tool during part processing, thereby improving the surface finish of the part, and the coolant is transported through the coolant channel and sprayed through the coolant spray hole, which can not only take away the processing heat and wash away the iron filings generated during processing, but also effectively lubricate the tool body, thereby protecting the tool surface coating, which can greatly improve the service life of the tool body and reduce the processing cost. It has strong practicality, simple overall structure, reasonable design, can meet the processing requirements of parts with deep groove structures, and is suitable for popularization and use.

[0033] Other details of the present invention are all conventional techniques known to those skilled in the art.

[0034] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the utility model and does not limit the utility model. Any minor modifications, equivalent substitutions and improvements made based on the technical solutions of the utility model should be included in the protection scope of the technical solutions of the utility model.

Claims

1. An internally cooled turning tool holder with lubrication function, comprising a tool holder (1) and a tool head (2), wherein the tool head (2) is arranged at the front end of the tool holder (1), characterized in that: A blade mounting boss (3) is provided on a side of the blade head (2) away from the blade handle (1), a blade mounting groove (31) is provided on the blade mounting boss (3), a coolant spray hole (21) is provided on the blade head (2), and a coolant connection hole (11) is provided at the rear end of the blade handle (1), a first coolant channel communicating with the coolant connection hole (11) is provided in the blade handle (1), and a second coolant channel communicating with the coolant spray hole (21) is provided in the blade head (2), and the first coolant channel communicates with the second coolant channel.

2. The internally cooled turning tool holder with lubrication function according to claim 1, characterized in that: The cutter head (2) comprises a connecting portion (22) and a supporting portion (23), wherein the connecting portion (22) and the supporting portion (23) constitute an axial cutting depth structure with an L-shaped cross section, the cutter head (2) is connected to the cutter handle (1) via the connecting portion (22), and the cutter body mounting boss (3) is arranged on the front end side surface of the supporting portion (23).

3. The internally cooled turning tool holder with lubrication function according to claim 2, characterized in that: The outer side of the tool body mounting boss (3) is provided with an outer arc transition portion (32), and the inner side thereof is provided with an inner arc transition portion (33); an inwardly recessed chip removal transition portion (34) is provided on the front end surface of the tool body mounting boss (3); the chip removal transition portion (34) is arranged on the tool body mounting boss (3) toward the outside of the cutter head (2); and the tool body mounting groove (31) is located on the tool body mounting boss (3) outside the chip removal transition portion (34).

4. The internally cooled turning tool holder with lubrication function according to claim 1, characterized in that: The cooling liquid connection holes (11) are provided in plurality, and the plurality of cooling liquid connection holes (11) are evenly arranged along the circumference of the tool handle (1) on the side away from the tool head (2); and the cooling liquid spray hole (21) is provided in plurality, and the cooling liquid spray hole (21) is arranged on the tool head (2) on the side facing the tool body mounting groove (31).

5. The internally cooled turning tool holder with lubrication function according to claim 4, characterized in that: Sealing gaskets are respectively arranged at the cooling liquid connection hole (11) and the cooling liquid spray hole (21), and the sealing gaskets are fixedly connected to the cooling liquid connection hole (11) and the cooling liquid spray hole (21).

6. The internally cooled turning tool holder with lubrication function according to claim 1, characterized in that: The knife handle (1), the knife head (2) and the knife body mounting boss (3) are made of hard alloy material to form an integrated structure.

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