A cutting tool body and a cutting tool having the same

Abstract

The utility model belongs to the field of cutting processing technology, and discloses a cutting tool body and a cutting tool having the cutting tool body, wherein the cutting tool body has a mounting groove for clamping a blade, and the cutting tool body is provided with a connected cooling channel and an inlet channel, and is characterized in that the cutting tool body further comprises: a cooling pipeline, wherein the cooling pipeline is placed in the cooling channel and connected to the cutting tool body, wherein one port of the cooling pipeline is connected to the inlet channel, and the other port of the cooling pipeline is arranged opposite to the cutting processing area of ​​the blade. The cutting tool body and the cutting tool having the cutting tool body provided by the utility model can have a good blade cooling effect and low energy consumption.

Description

Technical Field

[0001] The utility model relates to the field of cutting tools, in particular to a cutting tool body and a cutting tool having the cutting tool body. Background Art

[0002] Cutting tools are used for cutting metal or other objects. Cutting tools include a tool body and a blade. When the blade is used to cut metal or other objects, it is necessary to cool the blade to prevent the blade from premature failure and wear of the product due to excessively high cutting temperature.

[0003] The cooling method of the blade is usually to open a cooling medium channel in the blade body, and one end of the cooling medium channel is set close to the blade. A cooling medium with a certain pressure is supplied into the cooling medium channel through the other end of the cooling medium channel, so that the cooling medium is sprayed toward the blade at one end of the cooling medium channel, thereby taking away the heat on the blade. In the prior art, the cooling medium channel is formed on the blade body by machining a drill bit. In order to ensure the strength of the drill bit, the diameter of the drill bit needs to be designed to be larger, resulting in a larger aperture of the cooling medium channel, which in turn causes the ejection pressure of the cooling medium to drop, affecting the cooling effect on the blade. If it is to be ensured that the ejected cooling medium reaches a certain pressure, it is necessary to increase the supply pressure of the cooling medium, which increases energy consumption.

[0004] Therefore, there is an urgent need for a cutting tool to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a cutting tool body with better blade cooling effect and lower energy consumption.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A cutting tool body, comprising a tool body, wherein the tool body has a mounting groove for clamping a blade, the tool body is provided with a connected cooling channel and an inlet channel, and the cutting tool body further comprises:

[0008] A cooling pipeline is placed in the cooling channel and connected to the tool body, one port of the cooling pipeline is communicated with the inlet channel, and the other port of the cooling pipeline is arranged opposite to the cutting processing area of ​​the blade.

[0009] Preferably, the tool body is provided with a groove, the groove extends from the outer wall surface of the tool body to the cooling channel, and the cooling pipeline is placed in the cooling channel through the groove.

[0010] Preferably, an outer wall of the cooling pipeline is provided with a locking structure, and the locking structure is locked and matched with the inner wall of the cooling channel to lock the cooling pipeline in the cooling channel.

[0011] Preferably, the locking structure comprises an externally threaded sleeve, the sleeve is sleeved on the cooling pipeline, and the external thread can be threadedly connected to the inner wall of the cooling channel.

[0012] Preferably, the locking structure is arranged at one end of the cooling pipeline close to the inlet channel.

[0013] Preferably, the cooling channel comprises a first channel section and a second channel section which are connected, the first channel section and the second channel section are arranged at an angle, and the first channel section has an inlet on the inner wall of the inlet channel;

[0014] The cooling pipeline comprises a first pipe section and a second pipe section connected to each other, the first pipe section is placed in the first channel section, the locking structure is arranged on the outer wall of the first pipe section and is locked with the inner wall of the first channel section, the second pipe section is arranged in the second channel section, and a port of the second pipe section facing away from the first pipe section is arranged opposite to the cutting processing area of ​​the blade;

[0015] The groove extends from the outer wall surface of the blade body to the second channel section, and the first channel section extends to the groove along its axial direction.

[0016] Preferably, the groove is provided on a preset outer wall surface of the blade body, and the axial direction of the first channel section is parallel to the normal direction of the preset outer wall surface.

[0017] Preferably, the second channel section includes a first sub-channel and a second sub-channel arranged at an angle, and the groove includes a first sub-groove and a second sub-groove, the first sub-groove extends from the outer wall surface of the blade body to the first sub-channel, and the second sub-groove extends from the outer wall surface of the blade body to the second sub-channel.

[0018] Preferably, one end of the cooling pipeline facing away from the inlet channel extends outside the cooling channel and is inclined in a direction approaching the blade.

[0019] Preferably, the diameter of the port at one end of the cooling pipeline away from the inlet channel is smaller than the inner diameter of the cooling pipeline.

[0020] Preferably, two cooling pipes and two cooling channels are provided in a one-to-one correspondence, and the cooling pipes are placed in the corresponding cooling channels;

[0021] The two ports of the cooling pipelines arranged opposite to the cutting processing area of ​​the blade are located on opposite sides of the mounting groove.

[0022] Another object of the utility model is to provide a cutting tool with better blade cooling effect and lower energy consumption.

[0023] A cutting tool comprises the cutting tool body as described above and a blade installed in the installation groove.

[0024] Beneficial effects of the utility model:

[0025] The cutting tool body and the cutting tool having the cutting tool body provided by the utility model are provided with a cooling pipeline in the cooling channel, one port of the cooling pipeline is connected with the inlet channel, and the other port is arranged relative to the cutting processing area of ​​the blade, so that the flow area of ​​the cooling medium in the process of flowing from the inlet channel to the ejection position is related to the inner diameter of the cooling pipeline, but has nothing to do with the cross-section of the cooling channel, so that the cross-section of the cooling channel can be larger, which is convenient for the manufacture of the cooling channel. By designing the inner diameter of the cooling pipeline to be smaller, the flow area of ​​the cooling medium can be reduced, so that the ejection pressure of the cooling medium can be increased on the basis of a certain cooling medium supply pressure, thereby improving the cooling effect on the blade without additionally increasing energy consumption.

[0026] In addition, the design of the cooling pipeline can achieve much higher quality of the hole wall than that formed by mechanical drilling. For example, the roughness can be very small, which can effectively reduce the pressure loss of the cooling medium during flow, and further increase the ejection pressure of the cooling medium, thereby improving the cooling and debris removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional view of an inner cooling pipe groove cutter body of one embodiment of the utility model;

[0028] Figure 2 It is a top view of an inner cooling pipe groove cutter body of one embodiment of the utility model;

[0029] Figure 3 yes Figure 2 The sectional perspective view of the step AA line shown;

[0030] Figure 4 It is a bottom view of an inner cooling pipe groove cutter body of one embodiment of the utility model;

[0031] Figure 5 yes Figure 4 A cross-sectional view of line BB shown;

[0032] Figure 6 It is a right side view of an inner cooling pipe groove cutter body of one embodiment of the utility model;

[0033] Figure 7 yes Figure 6 The cross-sectional view of the step CC line shown;

[0034] Figure 8 yes Figure 6A sectional perspective view of the stepped CC line shown;

[0035] Fig. 9 It is a pipeline diagram of an internal cooling pipeline groove of one embodiment of the utility model.

[0036] In the figure:

[0037] 100, blade body; 101, mounting groove; 110, cooling channel; 111, first channel section; 112, second channel section; 1121, first sub-channel; 1122, second sub-channel; 120, inlet channel; 130, groove; 131, first sub-groove; 132, second sub-groove; 150, input interface; P1, preset outer wall surface;

[0038] 200, blade;

[0039] 300, cooling pipeline; 310, first pipe section; 320, second pipe section; 321, first pipe part; 322, second pipe part; 330, first port; 340, second port;

[0040] 400. Locking structure. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] This embodiment provides a cutting tool with better blade cooling effect and lower energy consumption.

[0046] like Figure 1 As shown, the cutting tool includes a cutting tool body (not shown in the figure) and a blade 200 mounted on the cutting tool body.

[0047] For example, Figures 1 to 9 As shown, the cutting tool body includes a tool body 100. In some optional embodiments, such as Figure 3 As shown, the cutter body 100 has a mounting groove 101 for clamping the blade 200 to fix the blade 200. The specific connection method between the cutter body 100 and the blade 200 can refer to the prior art, such as snap connection, magnetic connection, etc., and this embodiment is not limited to this. Exemplarily, the blade 200 is detachably arranged in the mounting groove 101 to facilitate the replacement of the blade 200. It should be noted that the blade edge of the blade 200 and the area near it constitute a cutting processing area. During the cutting process, the temperature of the cutting processing area is relatively high, and a large amount of debris will be generated in the cutting processing area.

[0048] like Figure 3As shown, the blade body 100 is provided with a connected cooling channel 110 and an inlet channel 120, the inlet channel 120 is used to communicate with an external cooling medium supply device, the cooling medium supply device can provide a cooling medium with a certain pressure to the inlet channel 120, and the cooling medium can enter the cooling channel 110 through the inlet channel 120. In some optional embodiments, the blade body 100 is provided with one or more input interfaces 150, and the input interface 150 is used to install a pipeline, so that the inlet channel 120 is connected and communicated with the cooling medium supply device through the pipeline.

[0049] like Figure 1 As shown, the cutting tool body provided in this embodiment further includes a cooling pipeline 300. The cooling pipeline 300 is disposed in the cooling channel 110, that is, the cooling pipeline 300 extends along the extension direction of the cooling channel 110.

[0050] In this embodiment, the cooling pipeline 300 is connected to the cutter body 100, so that the cooling pipeline 300 does not move relative to the cutter body 100, thereby improving the stability of the cooling pipeline 300. One port of the cooling pipeline 300 is connected to the inlet channel 120, so that the cooling medium in the inlet channel 120 can enter the cooling pipeline 300, and the other port of the cooling pipeline 300 is arranged opposite to the cutting processing area of ​​the blade 200, so that the cooling medium in the other port of the cooling pipeline 300 can be sprayed into the cutting processing area, thereby cooling the blade.

[0051] The cutting tool body provided in the present embodiment has a cooling pipeline 300 arranged in the cooling channel 110, one port of the cooling pipeline 300 is connected to the inlet channel 120, and the other port is arranged opposite to the cutting processing area of ​​the blade 200, so that the flow area of ​​the cooling medium in the process of flowing from the inlet channel 120 to the ejection position is related to the inner diameter of the cooling pipeline 300, but has nothing to do with the cross-section of the cooling channel 110, so that the cross-section of the cooling channel 110 can be larger, which is convenient for the manufacture of the cooling channel 110. By designing the inner diameter of the cooling pipeline 300 to be smaller, the flow area of ​​the cooling medium can be reduced, so that the ejection pressure of the cooling medium can be increased on the basis of a certain cooling medium supply pressure, thereby improving the cooling effect on the blade 200 without additionally increasing energy consumption.

[0052] Furthermore, by connecting the cooling pipe 300 to the blade body 100 , the probability of the cooling pipe 300 moving relative to the blade body 100 due to the impact of the cooling medium can be reduced, thereby improving the stability of the cooling pipe 300 and ensuring the reliability of the cooling blade 200 .

[0053] It should be noted that the cooling channel 110 has an inlet (not shown) on the inner wall of the inlet channel 120, and an outlet (not shown) on the outer wall of the blade body 100. One port of the cooling pipeline 300 can be located in the inlet channel 120, can be flush with the inlet, or can protrude from the inlet, which is not limited in this embodiment. Another port of the cooling pipeline 300 can be located in the inlet channel 120, can be flush with the outlet, or can protrude from the outlet.

[0054] In this embodiment, Figure 1 and Figure 3 As shown, one end of the cooling pipeline 300 away from the inlet channel 120 extends outside the cooling channel 110, that is, the other end of the cooling pipeline 300 is protruding from the outlet. Figure 5 As shown, one end of the cooling pipeline 300 away from the inlet channel 120 is inclined in a direction close to the blade 200, so that the nozzle of the cooling pipeline 300 is closer to the cutting process area to ensure the pressure of the cooling medium reaching the cutting process area.

[0055] Optionally, the cooling pipe 300 may be made of metal or non-metal, which is not limited in this embodiment. When the cooling pipe 300 is made of metal, it has higher impact resistance and wear resistance, and thus has a longer service life.

[0056] Of course, it is understandable that the material of the cooling pipe 300 can also be a material with a lower thermal conductivity. In this case, setting the cooling pipe 300 in the cooling channel 110 can also reduce the temperature rise of the cooling medium, so that there is a higher temperature difference between the cooling medium and the cutting processing area, further improving the cooling effect on the blade 200.

[0057] In specific applications, the cooling pipeline 300 can be an integrally formed part, or a connector composed of two or more sections of pipelines. For example, the cooling pipeline 300 can include a straight pipe section and a curved pipe section, and the straight pipe section and the curved pipe section can be threaded, welded, or connected in other ways. The curved pipe section can have an angle between 30° and 180° (excluding 180°), such as 150°, 90°, 60°, 30°, etc. Different straight pipe sections and curved pipe sections are selected and combined to form the cooling pipeline 300 according to actual conditions, so as to realize the modularization and customization of the cooling pipeline 300 and improve the practicality of the cooling pipeline 300.

[0058] Optionally, see Figure 1The cutter body 100 is provided with a groove 130, and the groove 130 extends from the outer wall surface of the cutter body 100 to the cooling channel 110. The cooling pipeline 300 is placed in the cooling channel 110 through the groove 130. By providing the groove 130, the cooling channel 110 is partially formed with an open groove design, and the cooling pipeline 300 can be disassembled and assembled through the open groove design, which facilitates the assembly of the cooling pipeline 300 and the cutter body 100 and reduces the difficulty of installing the cooling pipeline 300.

[0059] For example, the cooling line 300 may penetrate into the cooling channel 110 through the groove 130 .

[0060] In some optional embodiments, the cooling line 300 may be a hose to facilitate insertion into the cooling channel 110 .

[0061] For example, the width of the groove 130 is greater than the outer diameter of the cooling line 300 , so that the cooling line 300 can smoothly pass through the groove 130 .

[0062] It should be noted that if Figure 1 As shown, a portion of the cooling channel 110 is opposite to the groove 130, that is, the groove 130 does not need to be too long in the length direction of the cooling channel 110, as long as it is convenient to insert the cooling pipe 300. If the groove 130 is too long, it will easily cause the cooling pipe 300 to move out of the cooling channel 110, thereby affecting the fixing effect of the cooling pipe 300. Further optionally, as Figure 3 or Figure 7 As shown, the outer wall of the cooling pipeline 300 is provided with a locking structure 400, and the locking structure 400 is locked and matched with the inner wall of the cooling channel 110, that is, the locking structure 400 and the cutter body 100 can be locked and matched to lock the cooling pipeline 300 in the cooling channel 110, so as to achieve the connection between the cooling pipeline 300 and the cutter body 100. By providing the locking structure 400, the cooling pipeline 300 can be firmly locked in the cooling channel 110, further reducing the probability of the cooling pipeline 300 moving relative to the cutter body 100 under the impact of the cooling medium.

[0063] In some optional embodiments, the cooling pipeline 300 may be detachably connected or non-detachably connected to the inner wall of the cooling channel 110 through the locking structure 400, which is not limited in this embodiment. When the cooling pipeline 300 is detachably connected to the inner wall of the cooling channel 110 through the locking structure 400, it is easy to replace the cooling pipeline 300, and the flexibility is high.

[0064] Optionally, the locking structure 400 and the cooling pipeline 300 may be an integrated structure or a split structure, which is not limited in this embodiment. When the locking structure 400 and the cooling pipeline 300 are a split structure, the two may be connected by welding.

[0065] In some optional embodiments, the locking structure 400 is a sleeve with an external thread (not shown in the figure), the sleeve is sleeved on the cooling pipeline 300, and the external thread can be threadedly connected with the inner wall of the cooling channel 110 to achieve locking of the cooling pipeline 300.

[0066] By configuring the locking structure 400 as a sleeve with external threads, the locking structure 400 has a simple structure, is easy to manufacture, and has a low cost. In this embodiment, the inner wall of the cooling channel 110 may be provided with an internal thread, and the external thread and the internal thread are screwed together to achieve a threaded connection. Alternatively, the inner wall of the cooling channel 110 may not be provided with an internal thread. When connecting the locking structure 400 and the cooling channel 110, the cooling line 300 is directly screwed to drive the sleeve and the external thread to rotate in the cooling channel 110, thereby achieving a threaded connection with the inner wall of the cooling channel 110.

[0067] In other optional embodiments, the locking structure 400 and the inner wall of the cooling channel 110 may also be connected in a snap-fit ​​manner. For example, the locking structure 400 may be a snap-fitting member, and the inner wall of the cooling channel 110 may be provided with a snap-fitting member that snaps with the snap-fitting member, and the snap-fitting member and the snap-fitting member snap-fit ​​to achieve the fixing of the cooling pipeline 300 in the cooling channel 110. Of course, it is understandable that the locking structure 400 may also be other structures that can achieve the locking of the cooling pipeline 300, and this embodiment will not be given one by one here.

[0068] In specific applications, the detachable design of the cooling pipeline 300 not only facilitates the installation of the cooling pipeline 300 and the blade body 100, but also improves the applicability of the blade body 100. Specifically, a cooling pipeline 300 with a suitable inner diameter can be selected according to actual conditions and installed on the blade body 100 to adjust the flow rate and flow direction of the outlet cooling medium. Different inner diameter sizes and port shapes of the cooling pipeline 300 can be adaptively adjusted according to actual conditions, and this is not limited in this embodiment.

[0069] Optionally, see Figure 3 The locking structure 400 is disposed at one end of the cooling pipeline 300 close to the inlet channel 120. On the one hand, the locking structure 400 is disposed at one end of the cooling pipeline 300 close to the inlet channel 120, so that the end of the cooling pipeline 300 is not easy to bend, which facilitates the insertion of the cooling pipeline 300 into the cooling channel 110. On the other hand, the setting of the locking structure 400 will not affect the ejection of the cooling medium. In some optional embodiments, such as Figure 5As shown, the cooling channel 110 includes a first channel section 111 and a second channel section 112 which are connected. The first channel section 111 and the second channel section 112 are arranged at an angle. The first channel section 111 has an inlet on the inner wall of the inlet channel 120 to achieve the connection between the inlet channel 120 and the first channel section 111. The second channel section 112 forms an outlet on the outer wall surface of the blade body 100. For example, the angle between the first channel section 111 and the second channel section 112 is 90°.

[0070] It should be noted that the inner diameter of the second channel section 112 is greater than the outer diameter of the cooling pipeline 300 . For example, the inner diameter of the second channel section 112 is 1.1-1.2 times the outer diameter of the cooling pipeline 300 .

[0071] like Figure 7 or Fig. 9 As shown, the cooling pipeline 300 includes a first pipe section 310 and a second pipe section 320 connected to each other. The first pipe section 310 is placed in the first channel section 111, and the locking structure 400 is arranged on the outer wall of the first pipe section 310 and locked with the inner wall of the first channel section 111. The second pipe section 320 is arranged in the second channel section 112, and the port of the second pipe section 320 facing away from the first pipe section 310 is arranged opposite to the cutting processing area of ​​the blade 200.

[0072] It should be noted that, since the first channel section 111 and the second channel section 112 are arranged at an angle, the first pipe section 310 and the second pipe section 320 are also arranged at an angle. In this embodiment, the inner diameter of the first channel section 111 is greater than the outer diameter of the first pipe section 310. For example, the inner diameter of the first channel section 111 is twice the outer diameter of the first pipe section 310.

[0073] Please continue to see Figure 7The groove 130 extends from the outer wall of the blade body 100 to the second channel section 112, so as to facilitate the installation of the second pipe section 320 in the second channel section 112. The first channel section 111 extends to the groove 130 along its axial direction, that is, the first channel section 111 is arranged opposite to the groove 130. Since the locking structure 400 is arranged on the outer wall of the first pipe section 310, and the first pipe section 310 is inserted in the first channel section 111, therefore, the first channel section 111 is extended to the groove 130, so that when the locking structure 400 is locked and matched with the inner wall of the first channel section 111, the force point of the first pipe section 310 is closer to the locking structure 400, and the force direction applied to the first pipe section 310 is more easily consistent with the actuation direction of the first pipe section 310, thereby facilitating the driving of the locking structure 400, so that the locking structure 400 is smoothly locked and matched with the inner wall of the first channel section 111. For example, when the locking structure 400 is a sleeve with external threads, the first pipe segment 310 can be pressed into the first channel segment 111 while driving the first pipe segment 310 to rotate, so that the external threads can more easily reach the installation position.

[0074] In some optional embodiments, please continue to see Figure 7 , the groove 130 is provided on the preset outer wall surface P1 of the blade body 100, and the axial direction of the first channel section 111 is parallel to the normal direction of the preset outer wall surface P1, that is, the first channel section 111 is provided perpendicular to the preset outer wall surface P1, so that the distance between the first channel section 111 and the groove 130 is minimized. By making the axial direction of the first channel section 111 parallel to the normal direction of the preset outer wall surface P1, on the one hand, it is easy to manufacture the first channel section 111, reduce the length of the first pipe section 310, and reduce consumables, and on the other hand, the port of the first pipe section 310 close to the inlet channel 120 is more easily flush with the inlet, so as to reduce the impact force on the first pipe section 310.

[0075] It should be noted that the cooling pipeline 300 in the cooling channel 110 cannot be higher than the preset outer wall surface P1. For example, the distance between the cooling pipeline 300 and the preset outer wall surface P1 is greater than or equal to 0.5 mm.

[0076] Exemplarily, two cooling pipes 300 and two cooling channels 110 are provided in a one-to-one correspondence, and each cooling pipe 300 is placed in the corresponding cooling channel 110. By providing two cooling pipes 300, the cooling effect on the blade 200 can be improved.

[0077] Further optionally, the ports of the two cooling channels 300 arranged opposite to the cutting area of ​​the blade 200 are located on opposite sides of the mounting groove 101, so that the cooling medium can be sprayed to the blade 200 from both sides of the blade 200, so as to further improve the cooling effect of the blade 200, and while improving the cooling effect of the blade 200, the debris in the cutting area can also be removed to prevent the debris from affecting the cutting effect of the blade 200 and improve the cutting quality. It should be noted that the outlets of the two cooling channels 110 are arranged at intervals, and the outlets of the two cooling channels 110 are located on both sides of the blade 200.

[0078] In some optional embodiments, the mounting groove 101 is arranged through the cutter body 100 along the width direction of the cutter body 100, and the ports of the two cooling pipes 300 arranged opposite to the cutting processing area of ​​the blade 200 are located on opposite sides of the mounting groove 101 in the height direction of the cutter body 100. Figure 5 In the embodiment, one port (ie, the first port 330 ) is located above the blade 200 , and the other port (ie, the second port 340 ) is located below the blade 200 .

[0079] In this embodiment, there are two cooling pipes 300 , two cooling channels 110 and two grooves 130 . The two cooling channels 110 correspond to the two grooves 130 one by one, and each groove 130 is connected to the corresponding cooling channel 110 .

[0080] It should be noted that a locking structure 400 is provided on the outer wall of the first pipe section 310 of each cooling pipeline 300 .

[0081] Alternatively, if Figure 5 As shown, the angle between the center line of the nozzle of the cooling pipeline 300 located below the cutting process area (i.e., the port of the cooling pipeline 300 at one end away from the inlet channel 120) and the length direction of the cutter body 100 is a, wherein the value range of a is 5°-15°. The angle between the center line of the nozzle of the cooling pipeline 300 located above the cutting process area (i.e., the port of the cooling pipeline 300 at one end away from the inlet channel 120) and the length direction of the cutter body 100 is b, wherein the value range of b is 60°-70°, so as to ensure that the center lines of the two nozzles can intersect in the cutting process area, so as to ensure the cooling effect and the effect of removing debris.

[0082] Alternatively, if Figure 5 As shown, the second channel section 112 includes a first sub-channel 1121 and a second sub-channel 1122 arranged at an angle. By arranging the first sub-channel 1121 and the second sub-channel 1122, it is possible to achieve that the outlets of the two cooling channels 110 are located on both sides of the blade 200. In this embodiment, as Figure 1As shown, the groove 130 includes a first sub-groove 131 and a second sub-groove 132. The first sub-groove 131 extends from the outer wall surface of the blade body 100 to the first sub-channel 1121, and the second sub-groove 132 extends from the outer wall surface of the blade body 100 to the second sub-channel 1122. By providing the first sub-groove 131, it is convenient for the second pipe segment 320 to penetrate into the first sub-channel 1121, and by providing the second sub-groove 132, it is convenient for the second pipe segment 320 to penetrate into the second sub-channel 1122, thereby avoiding the difficulty of penetrating the second pipe segment 320 due to the bending of the second channel segment 112. For example, the angle between the first sub-channel 1121 and the second sub-channel 1122 is 90°.

[0083] In this embodiment, the first sub-channel 1121 is connected to the first channel section 111 , and the second sub-channel 1122 extends to the outer wall surface of the blade body 100 and has an outlet on the outer wall surface of the blade body 100 .

[0084] It should be noted that when there are two cooling channels 110, the second channel section 112 of one cooling channel 110 may include a first sub-channel 1121 and a second sub-channel 1122 arranged at an angle, and the second channel section 112 of the other cooling channel 110 extends along a preset direction. Alternatively, the second channel sections 112 of both cooling channels 110 may include a first sub-channel 1121 and a second sub-channel 1122 arranged at an angle, which is not limited in this embodiment.

[0085] Correspondingly, when the second channel section 112 includes a first sub-channel 1121 and a second sub-channel 1122 arranged at an angle, the second pipe section 320 includes a connected first pipe portion 321 and a second pipe portion 322. The first pipe portion 321 is placed in the first sub-channel 1121 and connected to the first pipe section 310, and the second pipe portion 322 is placed in the second sub-channel 1122, and the port of the second pipe portion 322 facing away from the first pipe portion 321 is arranged opposite to the cutting processing area.

[0086] In some optional embodiments, the caliber of the port of the cooling pipeline 300 away from the inlet channel 120 is smaller than the inner diameter of the cooling pipeline 300, that is, the port of the cooling pipeline 300 away from the inlet channel 120 is in a closed shape to further increase the ejection pressure of the cooling medium and ensure the cooling effect. Optionally, the end of the cooling pipeline 300 away from the inlet channel 120 can be tapered to achieve that the caliber of the port of the cooling pipeline 300 opposite to the blade 200 is smaller than the inner diameter of the cooling pipeline 300. For example, the caliber of the port of the cooling pipeline 300 opposite to the blade 200 is 2 / 3 of the inner diameter of the cooling pipeline 300.

[0087] When assembling the cutting tool provided in this embodiment, the cooling pipe 300 is first manufactured, for example, a sleeve with an external thread is welded to the cooling pipe 300, and then the sleeve is screwed to the internal thread of the first channel section 111 to lock the first pipe section 310. Then the deformable cooling pipe 300 is neatly arranged in the cooling channel 110 opposite to the groove 130, and finally the cooling pipe 300 is controlled to pass through the portion of the cooling pipe 300 close to the cutting processing area, and the cooling pipe 300 is cut and bent according to the required protrusion amount to obtain the cutting tool body, and the blade 200 is installed in the installation groove 101, and the following can be obtained. Figure 1 Cutting tool shown.

[0088] The cutting tool provided in this embodiment first processes a groove 130 through the outer wall surface of the tool body 100 itself, and uses the locking structure 400 on the first pipe section 310 to threadedly connect with the first channel section 111. The cooling line 300 can be arranged in the pre-processed cooling channel 110 to achieve precise and directional delivery of the cooling medium to the cutting processing area. The smooth discharge of the cooling medium can be well solved without obstruction, overlap between the cooling channels 110 and the cooling channels 110, and plugging and patching holes are not required. At the same time, the cooling line 300 can achieve a smaller aperture, so that the water outlet pressure of the cooling medium is greater, which better solves the chip removal and improvement of the processing surface quality of the cutting process.

[0089] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A cutting tool body, comprising a tool body (100), wherein the tool body (100) has a mounting groove (101) for clamping a blade (200), and the tool body (100) is provided with a cooling channel (110) and an inlet channel (120) connected to each other, characterized in that: The cutting tool body also includes: A cooling pipeline (300) is disposed in the cooling channel (110) and connected to the tool body (100), one port of the cooling pipeline (300) is communicated with the inlet channel (120), and another port of the cooling pipeline (300) is arranged opposite to a cutting processing area of ​​the blade (200).

2. The cutting tool body according to claim 1, characterized in that The blade body (100) is provided with a groove (130), the groove (130) extending from the outer wall surface of the blade body (100) to the cooling channel (110), and the cooling pipeline (300) is inserted into the cooling channel (110) through the groove (130).

3. The cutting tool body according to claim 2, characterized in that The outer wall of the cooling pipeline (300) is provided with a locking structure (400), and the locking structure (400) is locked and matched with the inner wall of the cooling channel (110) to lock the cooling pipeline (300) to the cooling channel (110).

4. The cutting tool body according to claim 3, characterized in that The locking structure (400) is a sleeve having an external thread, the sleeve is sleeved on the cooling pipeline (300), and the external thread can be threadedly connected to the inner wall of the cooling channel (110).

5. The cutting tool body according to claim 3, characterized in that The cooling channel (110) comprises a first channel section (111) and a second channel section (112) which are connected to each other, the first channel section (111) and the second channel section (112) being arranged at an angle, and the first channel section (111) having an inlet on the inner wall of the inlet channel (120); The cooling pipeline (300) comprises a first pipe section (310) and a second pipe section (320) which are connected, the first pipe section (310) being disposed in the first channel section (111), the locking structure (400) being disposed on the outer wall of the first pipe section (310) and being locked and matched with the inner wall of the first channel section (111), the second pipe section (320) being disposed in the second channel section (112), and a port of the second pipe section (320) which is away from the first pipe section (310) being disposed opposite to a cutting processing area of ​​the blade (200); The groove (130) extends from the outer wall surface of the blade body (100) to the second channel section (112), and the first channel section (111) extends along its axial direction to the groove (130).

6. The cutting tool body according to claim 5, characterized in that The groove (130) is provided on a preset outer wall surface (P1) of the blade body (100), and the axial direction of the first channel section (111) is parallel to the normal direction of the preset outer wall surface (P1).

7. The cutting tool body according to claim 5, characterized in that The second channel section (112) comprises a first sub-channel (1121) and a second sub-channel (1122) which are arranged at an angle, and the groove (130) comprises a first sub-groove (131) and a second sub-groove (132), the first sub-groove (131) extending from the outer wall surface of the knife body (100) to the first sub-channel (1121), and the second sub-groove (132) extending from the outer wall surface of the knife body (100) to the second sub-channel (1122).

8. The cutting tool body according to claim 1, characterized in that The diameter of the port at one end of the cooling pipeline (300) away from the inlet channel (120) is smaller than the inner diameter of the cooling pipeline (300).

9. A cutting tool body according to any one of claims 1 to 8, characterized in that Two cooling pipelines (300) and two cooling channels (110) are provided in a one-to-one correspondence, and the cooling pipeline (300) is placed in the cooling channel (110) corresponding thereto; The two cooling pipelines (300) and ports disposed opposite to the cutting processing area of ​​the blade (200) are located on opposite sides of the mounting groove (101).

10. A cutting tool, characterized in that: The invention comprises a cutting tool body as claimed in any one of claims 1 to 9 and a blade (200) installed in the installation groove (101).

Images