An internally coolant driven adjustable chip breaker

Abstract

The present application relates to the technical field of machining for turning, and particularly relates to an internal cooling driven adjustable chip breaking device. The device comprises a blade and a blade rod, and a channel for flowing cooling liquid is formed in the blade and the blade rod. The blade rod is provided with a chip breaking mechanism, a steering mechanism, a transmission mechanism and a power mechanism. The steering mechanism is used for adjusting the chip breaking direction of the chip breaking tool. The transmission mechanism comprises a cam, which is used for driving the chip breaking tool to act. The power mechanism comprises an impeller, which has a main shaft and is connected with the transmission mechanism, and is used for providing driving force for the transmission mechanism. The present application can effectively reduce the temperature of the cutting tool and realize the active chip breaking function based on the one-way channel of the cooling liquid. The kinetic energy of the cooling liquid is converted into mechanical power for driving the chip breaking tool to act by the power mechanism and the transmission mechanism. The power motor and other devices are not needed to be additionally configured, the overall volume of the chip breaking device is reduced, and the energy loss is reduced. The stroke and the movement direction of the chip breaking tool can be adjusted by the chip breaking mechanism and the steering mechanism, so that the chip breaking device has better dynamic adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the machining technical field for turning, in particular to an inner cooling driven adjustable chip breaking device. BACKGROUND

[0002] When turning stainless steel, high-temperature alloy, titanium alloy and other high-toughness and low-thermal-conductivity plastic difficult-to-machine materials, continuous long strip-shaped chips are easily formed during the cutting process. Such chips are difficult to break spontaneously, resulting in deterioration of the machining surface quality, entanglement of chips causing safety hazards, and even aggravation of tool wear due to secondary cutting.

[0003] The existing chip breaking device has the following defects:

[0004] I. Passive chip breaking device: such as turning tool chip breaking groove, mainly relying on fixed geometric structure to force chip curling and breaking, but the adaptability is poor when the cutting parameters change, and it cannot dynamically respond to the differences in material properties and working conditions.

[0005] II. Active chip breaking device: requires an external motor to drive the chip breaking mechanism, which has the problems of complex structure, low assembly efficiency, insufficient motor operation stability, and additional energy consumption increases the processing cost. SUMMARY

[0006] The present application aims to at least improve one of the technical problems existing in the prior art. To this end, the present application proposes an inner cooling driven adjustable chip breaking device.

[0007] The technical solution of the present application is as follows:

[0008] An inner cooling driven adjustable chip breaking device, comprising:

[0009] a blade having a first branch channel inside;

[0010] a tool bar fixedly connected with the blade and having a second branch channel inside, which communicates with the first branch channel to form a one-way channel for cooling liquid, the tool bar is provided with a mounting groove which communicates with the second branch channel, and an end cover is installed above the mounting groove and fixedly connected with the tool bar;

[0011] a chip breaking mechanism, comprising:

[0012] a chip breaking tool;

[0013] a chip breaking tool holder fixedly connected with one end of the chip breaking tool;

[0014] a sliding block fixedly connected with the end of the chip breaking tool holder away from the chip breaking tool on its surface;

[0015] a connecting rod fixedly connected with one end of the sliding block and provided with a roller bearing at the other end;

[0016] A turning mechanism is rotatably installed on the surface of the tool bar and is in sliding connection with the sliding block to adjust the chip breaking direction of the chip breaker;

[0017] A transmission mechanism is installed on the surface of the tool bar, the transmission mechanism comprises a cam provided with a cam groove for installing the roller bearing, and the cam is rotated to drive the chip breaker frame to move along the sliding block direction;

[0018] A power mechanism is installed in the installation groove, the power mechanism comprises an impeller provided with a main shaft connected with the transmission mechanism to provide driving force for the transmission mechanism.

[0019] The internal cooling driven adjustable chip breaking device can effectively reduce the temperature of the cutting tool and realize the active chip breaking function based on the one-way cooling liquid channel formed in the blade and the tool bar. The kinetic energy of the cooling liquid is converted into mechanical power to drive the chip breaker by the power mechanism and the transmission mechanism, without the need for additional power motor and other devices, which reduces the overall volume of the chip breaking device and reduces energy loss. The stroke and movement direction of the chip breaker can be adjusted by the chip breaking mechanism and the turning mechanism, so that the chip breaking device has better dynamic adaptability.

[0020] In a possible technical solution, further, the transmission mechanism comprises:

[0021] A column body is provided with a sunken groove, the column body in the sunken groove is provided with a central through hole, the column body is provided with external gear teeth on the inner ring, the column body is provided with a threaded hole, and the external wheel screw is locked on the tool bar through the column body;

[0022] A cam is in rotational connection with the column body, the cam above the through hole is provided with a cam central hole, the main shaft of the impeller is in rotational connection with the cam through the cam central hole, and the cam is provided with a plurality of countersunk holes;

[0023] A main gear is installed on the main shaft;

[0024] A plurality of planetary gear screws are respectively connected with the cam through the countersunk holes;

[0025] A plurality of planetary gears are installed in the sunken groove, each planetary gear is in rotational connection with the planetary gear screw, each planetary gear is in meshing connection with the main gear and the external gear teeth, and in this embodiment, the planetary gear and the planetary gear screw are connected through the planetary gear bearing and the planetary wheel spring snap ring.

[0026] In a possible technical solution, further, the cam groove comprises a first groove and a second groove, wherein the first groove is located outside the countersunk hole, and the second groove is located close to one side of the cam center hole, the first groove and the second groove are alternately connected to form a closed loop for mounting the roller bearing, and the cam is rotated to drive the chip breaker holder to move along the slider direction.

[0027] In a possible technical solution, further, a sleeve is arranged at the end of the main shaft away from the transmission mechanism, and a plurality of blades are arranged on the surface of the main shaft for driving the impeller to rotate.

[0028] The power mechanism further comprises:

[0029] The impeller box is fixedly connected to the tool bar through a shoulder screw, wherein the shoulder screw extends through the bottom of the impeller box into the impeller box, the sleeve is sleeved on the shoulder screw and is rotationally connected to the shoulder screw through an impeller bearing for mounting the impeller.

[0030] A sealing assembly is arranged at the connection between the impeller box and the impeller, and in this embodiment, the sealing assembly is a lower double-lip sealing ring.

[0031] A fixing plate is connected to the impeller box and the end cover, respectively, and in this embodiment, the fixing plate is fixedly connected to the end cover through a pin, and in this embodiment, an upper double-lip sealing ring is arranged at the connection between the fixing plate and the main shaft, and an end face sealing ring is arranged between the fixing plate and the impeller box.

[0032] In a possible technical solution, further, the main shaft of the impeller comprises:

[0033] A first-order shaft is integrally connected to the blade;

[0034] A second-order shaft is connected to the end of the first-order shaft away from the sealing assembly, wherein a plurality of spline grooves are arranged on the side of the second-order shaft away from the first-order shaft for mounting the main gear;

[0035] A third-order shaft is connected to the end of the second-order shaft away from the first-order shaft, and a threaded hole is arranged at the end of the third-order shaft for connecting a screw and axially fixing a cam bearing.

[0036] The diameters of the first-order shaft, the second-order shaft, and the third-order shaft are sequentially reduced.

[0037] In a possible technical solution, further, the steering mechanism comprises:

[0038] A guide rail is slidably connected to the slider, and one end of the guide rail is rotationally connected to the tool bar.

[0039] A plurality of first insertion holes are formed in the cutter bar;

[0040] A locking assembly is connected with the guide rail, and the first insertion holes are embedded in the locking assembly to limit the rotating direction of the guide rail.

[0041] In a possible technical solution, further, the locking assembly comprises:

[0042] A first ball groove is fixedly connected with the guide rail, and a plurality of second insertion holes are uniformly formed at both ends of the first ball groove;

[0043] A second ball groove is embedded in the surface of the cutter bar and cooperates with the first ball groove to form an arc-shaped cavity, wherein the arc length of the first ball groove is greater than that of the second ball groove;

[0044] A plurality of balls are placed in the arc-shaped cavity, and the balls are rolled in the second ball groove to reduce the rotating friction of the first ball groove, so that the turning of the chip breaking mechanism is more stable and smooth;

[0045] An insertion pin is inserted into any of the insertion holes to lock the guide rail.

[0046] In a possible technical solution, further, the transmission mechanism further comprises:

[0047] A cam bearing is installed at the cam of the cam center hole;

[0048] A screw is fixedly connected with the main shaft through the cam bearing, and is used to reduce the kinetic energy loss.

[0049] In a possible technical solution, further, a cooling groove is formed in the blade and is in communication with the first branch channel.

[0050] In a possible technical solution, further, the area of the cooling groove accounts for one third of the total area of the blade in the same horizontal section.

[0051] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0053] Figure 12 is a schematic structural diagram of an internally-cooled, driven, adjustable chip breaker according to an embodiment of the present invention;

[0054] Figure 2 Schematic diagram of a blade channel of an internally coolant driven adjustable chip breaker according to an embodiment of the present invention;

[0055] Figure 3 2. A schematic diagram of a tool bar channel of an internally coolant driven adjustable chip breaker according to an embodiment of the present invention;

[0056] Figure 4 is a schematic cross-sectional view of an internally coolant driven adjustable chip breaker according to an embodiment of the present invention;

[0057] Figure 5 2. It is a schematic structural diagram of a locking assembly of an internally-cooled, adjustable chip breaker according to an embodiment of the present invention;

[0058] Figure 6 2. A diagram of the planetary gear operation system of the transmission mechanism of the internally-cooled, adjustable chip breaker according to an embodiment of the present invention;

[0059] Figure 7 is a cross-sectional view of a cam of a transmission mechanism of an internally-cooled, driven, adjustable chip breaker according to an embodiment of the present invention;

[0060] Figure 8 2. It is a schematic diagram of the impeller structure of the internally-cooled driven adjustable chip breaker according to an embodiment of the present invention;

[0061] Figure 9 Schematic diagram of the impeller box structure of the internally cooled driven adjustable chip breaker according to an embodiment of the present invention.

[0062] Reference numerals:

[0063] Blade 1, cooling groove 11, first liquid inlet 12, first liquid outlet 13;

[0064] The knife bar 2, the second liquid inlet 21, the second liquid outlet 22, and the end cover 23;

[0065] Chip breaker 31, chip breaker holder 32, slider 33, connecting rod 34, roller bearing 341;

[0066] Guide rail 41, guide rail screw 411, first latch hole 42, first ball groove 431, second latch hole 4310, second ball groove 432, ball 433, latch 434;

[0067] Pillar body 50, outer gear teeth 501, outer gear screw 502, cam 51, cam groove 511, cam center hole 512, countersunk hole 513, raised edge 514, main gear 52, planetary gear screw 53, planetary gear 54, cam bearing 55, screw 56;

[0068] Impeller 61, sleeve 611, blade 612, impeller bearing 613, first-order shaft 614, second-order shaft 615, spline groove 6150, third-order shaft 616, impeller box 62, shaft shoulder screw 621, fixed piece 64. DETAILED DESCRIPTION

[0069] The embodiments of the present application will be described in detail with reference to the drawings, the embodiments described herein are exemplary, and it should be understood that the specific embodiments described herein are only used to explain the present application, and are not intended to limit the present application.

[0070] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0072] The terms "first", "second", "third", etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a series of steps or units are included, or optionally, other steps or units not listed are also included, or optionally, other steps or units inherent to the process, method, product or equipment are also included.

[0073] Embodiment 1

[0074] As Figures 1 to 9 shown, the present embodiment provides an inner-cooling driving adjustable chip breaking device, which comprises:

[0075] A blade 1, which has a first branch passage inside;

[0076] A tool bar 2, which is fixedly connected with the blade 1 and has a second branch passage inside, communicates with the first branch passage to form a one-way passage of cooling liquid, and is provided with a mounting groove 20 which communicates with the second branch passage, and an end cover 23 is mounted above the mounting groove 20 and fixedly connected with the tool bar 2;

[0077] A chip breaking mechanism, which comprises:

[0078] chip breaker 31 for breaking the chip;

[0079] chip breaker holder 32, one end of which is fixedly connected with the chip breaker 31;

[0080] slider 33, the surface of which is fixedly connected with the end of the chip breaker holder 32 away from the chip breaker 31;

[0081] connecting rod 34, one end of which is fixedly connected with the slider 33, and the other end of which is provided with a roller bearing 341;

[0082] turning mechanism, which is rotatably installed on the surface of the tool bar 2 and is in sliding connection with the slider 33, so as to adjust the chip breaking direction of the chip breaker 31;

[0083] transmission mechanism, which is installed on the surface of the tool bar 2, and comprises a cam 51 provided with a cam groove 511 for installing the roller bearing 341, and the cam 51 is rotated to make the chip breaker holder 32 move along the direction of the slider 33;

[0084] power mechanism, which is installed in the installation groove 20, and comprises an impeller 61 having a main shaft, the main shaft being connected with the transmission mechanism for providing driving force for the transmission mechanism.

[0085] It should be noted that in the embodiment, the first branch channel comprises a first liquid inlet 12 and a first liquid outlet 13, so as to connect the second branch channel in the tool bar 2, wherein the first liquid inlet 12 and the first liquid outlet 13 are located at the same horizontal height, the second branch channel comprises a second liquid inlet 21 and a second liquid outlet 22, for external cooling liquid to enter and circulate, and the second liquid inlet 21 and the second liquid outlet 22 are both arranged at the end of the tool bar 2 away from the blade 1 of the inner cooling turning tool, so as to avoid the influence of flying chips impact or vibration on the stability of the interface during the cutting process, thereby improving the operation safety, in addition, it is also beneficial to the secondary utilization of the cooling liquid, and facilitates the installation of the power mechanism, so as to provide power for the chip breaker 31. Wherein the second liquid inlet 21 and the second liquid outlet 22 are located at the same horizontal height, and the second liquid inlet 21 is lower than the height of the first branch channel, so as to make the cooling of the blade more uniform.

[0086] It should be noted that a channel sealing ring is arranged at the interface between the first branch channel and the second branch channel, so as to ensure the sealing between the blade 1 and the tool bar 2 of the inner cooling turning tool.

[0087] It needs to be explained that one end of the connecting rod 34 is connected with the cam 51 through the connecting rod screw, the roller bearing 341 and the connecting rod spring snap ring, the other end is connected with the slide block 33 through the cushion block screw, the cushion block and the slide block 33, and has a plurality of different lengths; one end of the chip breaker holder 32 is connected with the slide block 33 through the chip breaker holder screw, and the other end is fixed with the chip breaker 31 through the chip breaker screw; the slide block 33 can move along the guide rail 41, when the cam 51 rotates, the outer ring of the roller bearing 341 moves in the linear direction of the guide rail 41 in the cam groove 511, in this embodiment, the linear direction stroke of the roller bearing 341 is 6mm, the connecting rod 34 moves with the roller bearing 341, acts on the slide block 33 and the chip breaker holder 32, and further makes the chip breaker 31 move with the chip breaker holder 32, therefore, when the cam 51 rotates, the chip breaker 31 on the chip breaking mechanism can impact the chip at high speed, the strip-shaped chip is broken into granular chip, the cam 51 rotates one circle, the chip breaker 31 reciprocates 3 cycles, the chip breaking efficiency is high, the chip is broken into granular by periodic impact, and the active chip breaking of the chip breaker 31 is realized, the farthest impact position of the chip breaker 31 can be changed by replacing the length of the connecting rod 34, so as to adapt to different cutting parameters.

[0088] It needs to be explained that the transmission mechanism comprises:

[0089] The column body 50 is provided with a sunken groove, the column body 50 in the sunken groove is provided with a through hole, the outer ring of the column body 50 is provided with outer gear teeth 501, the column body 50 is provided with a threaded hole, and the outer gear screw 502 passes through the column body 50 and is locked on the tool bar 2;

[0090] The cam 51 is rotationally connected with the column body 50, the cam 51 above the through hole is provided with a cam center hole 512, the main shaft of the impeller 61 passes through the cam center hole 512 and is rotationally connected with the cam 51, and the cam 51 is provided with three countersunk holes 513;

[0091] The main gear 52 is installed on the main shaft,

[0092] The three planetary gear screws 53 pass through the countersunk holes 513 and are connected with the cam 51 respectively;

[0093] The three planetary gears 54 are all installed in the sunken groove, each planetary gear 54 is rotationally connected with the planetary gear screw 53, and each planetary gear 54 is meshingly connected with the main gear 52 and the outer gear teeth 501, in this embodiment, the planetary gear 54 and the planetary gear screw 53 are connected through the planetary gear bearing and the planetary wheel spring snap ring.

[0094] As the impeller 61 rotates steadily clockwise, the main gear 52 connected to the spline groove 6150 on the impeller 61 rotates. Since the planetary gears 54 are engaged with the main gear 52 and the outer gear teeth 501, the three planetary gears 54 are engaged with the main gear 52 and rotate. The cam 51 connected to the planetary gear 54 above the planetary gear 54 by the planetary gear screw 53 will rotate clockwise along with the planetary gear 54. The transmission ratio of the transmission mechanism is 3:1. The rotation of the impeller 61 is decelerated and then transmitted to the chip breaker mechanism, which can reduce the speed of the power mechanism and increase the torque of the cam 51, thereby increasing the driving force of the chip breaker mechanism.

[0095] It should be noted that a circular groove is provided on the circumferential side of the edge of the upper surface of the column base body 50, and a raised edge 514 is provided at the bottom of the cam 51. The raised edge 514 is embedded in the circular groove and can rotate around the circular groove. An outer wheel ball 502 is provided between the raised edge 514 and the circular groove to reduce contact friction, so that the circular boss can rotate around the circular groove more smoothly.

[0096] It should be noted that the cam groove 511 includes:

[0097] a first groove located outside the countersunk hole 513;

[0098] a second groove, which is close to one side of the cam center hole 512;

[0099] The first grooves and the second grooves are alternately connected to form a closed loop for mounting the roller bearing 341 , and the chip breaker holder 32 is driven to move along the direction of the slider 33 by the rotation of the cam 51 .

[0100] It should be noted that a sleeve 611 is provided at the end of the main shaft away from the transmission mechanism, and a plurality of blades 612 are installed on the surface of the main shaft to drive the impeller 61 to rotate. In this embodiment, the number of the blades 612 is eight.

[0101] The power mechanism further comprises:

[0102] The impeller box 62 is fixedly connected to the blade 2 via a shoulder screw 621, wherein the shoulder screw 621 passes through the bottom of the impeller box 62 and extends into the impeller box 62. The sleeve 611 is sleeved on the shoulder screw 621 and is rotatably connected to the shoulder screw 621 via an impeller bearing 613, and is used to install the impeller 61.

[0103] A sealing assembly is installed at the connection between the impeller box 62 and the impeller 61. In this embodiment, the sealing assembly is a lower double-lip sealing ring;

[0104] The fixing plate 64 is connected to the impeller box 62 and the end cover 23 respectively. In this embodiment, the fixing plate 64 is fixedly connected to the end cover 23 by a pin. In this embodiment, an upper double-lip sealing ring is provided at the connection between the fixing plate 64 and the main shaft, and an end face sealing ring is provided between the fixing plate 64 and the impeller box 62.

[0105] It should be noted that, in this embodiment, the impeller box 62 includes five arc-shaped baffles arranged in a ring-shaped interval, an opening is formed between every two arc-shaped baffles, and the five openings are distributed in a circular array about the center point of the impeller box 62, wherein, at the end of the second branch channel connected to the first liquid outlet 13, a cross-sectional surface A of the arc-shaped baffle located at the incision is parallel to the second branch channel, and a cross-sectional surface B of the other arc-shaped baffle located at the incision is set at an angle to the cross-sectional surface A, and the opening gradually shrinks along the coolant inflow direction, and the high-pressure coolant can impact the impeller 61 clockwise in the impeller box 62 through the impeller box 62.

[0106] By setting up the power mechanism, the coolant can flow through the blade 1 of the internally cooled turning tool, flow into the mounting groove 20 through the first liquid outlet 13 and the second liquid inlet 21, flow through the impeller box 62 and impact the impeller 61 clockwise, so that the impeller 61 rotates and drives the transmission mechanism to move, and finally the chip breaker 31 moves back and forth, thereby achieving chip breaking; at the same time, the resistance of the impeller 61 to the coolant reduces its flow rate, thereby extending the residence time of the coolant in the first branch channel of the blade 1, thereby maximizing the heat conduction efficiency while reducing the coolant flow rate, achieving the coordinated optimization of "kinetic energy utilization - efficient cooling - energy saving and consumption reduction", and improving the comprehensive utilization rate of the coolant.

[0107] It should be noted that the main shaft of the impeller 61 includes:

[0108] a first-order shaft 614 integrally connected to the blade 612;

[0109] A second-order shaft 615 is connected to the end of the first-order shaft 614 away from the sealing assembly, wherein a side surface of the second-order shaft 615 away from the first-order shaft 614 is provided with a plurality of spline grooves 6150 for mounting the main gear 52;

[0110] The third-order shaft 616 is connected to the end of the second-order shaft 615 away from the first-order shaft 614, and has a threaded hole at the end thereof for connecting with the screw 56 and axially fixing the cam bearing 55;

[0111] The diameters of the first-order shaft 614 , the second-order shaft 615 , and the third-order shaft 616 decrease in sequence.

[0112] When the coolant flows to the mounting groove 20, the coolant is controlled by the impeller box 62 and impacts the blades 612 of the impeller 61 clockwise. Since the first-order shaft 614 of the impeller 61 is connected to the shoulder screw 621, the blades 612 will drive the impeller 61 to rotate, and then the coolant flows out of the mounting groove 20, and the kinetic energy of the coolant is converted into the kinetic energy of the impeller 61 through the power mechanism.

[0113] It should be noted that the steering mechanism includes:

[0114] A guide rail 41 is slidably connected to the slider 33, and one end of the guide rail 41 is rotatably connected to the knife bar 2. In this embodiment, one end of the guide rail 41 is restricted to the surface of the knife bar 2 by a guide rail screw 411, and a thrust bearing is provided between the guide rail 41 and the knife bar 2;

[0115] A plurality of first pin holes 42 are provided on the knife bar 2;

[0116] The locking assembly is connected to the guide rail 41 and is embedded in the first latch hole 42 to limit the rotation direction of the guide rail 41 .

[0117] It should be noted that the locking assembly includes:

[0118] A first ball rolling groove 431 is fixedly connected to the guide rail 41. A plurality of second pin holes 4310 are evenly formed at both ends of the first ball rolling groove 431. In this embodiment, the first pin holes 42 and the second pin holes 4310 are both square holes with the same size. The first ball rolling groove 431 is fixed to the guide rail 41 by a flat-ended set screw, allowing the guide rail 41 to rotate around the guide screw 411.

[0119] The second ball rolling groove 432 is embedded in the surface of the knife bar 2 and cooperates with the first ball rolling groove 431 to form an arc-shaped cavity, wherein the arc length of the first ball rolling groove 431 is greater than the arc length of the second ball rolling groove 432;

[0120] It should be noted that, in this embodiment, the first pin hole 42 and the second ball rolling groove 432 are located on the same arc line, and the second ball rolling groove 432 is arranged between the first pin holes 42 to facilitate matching the rotation path of the first ball rolling groove 431 .

[0121] A plurality of balls 433 are placed in the arc-shaped cavity. The balls 433 roll in the second ball grooves 432 to reduce the rotational friction of the first ball grooves 431, thereby making the chip breaker mechanism turn more smoothly.

[0122] The latch pin 434 passes through the second latch pin hole 4310 to be embedded in any of the latch pin holes 42 to lock the guide rail 41 .

[0123] It should be noted that, in this embodiment, the first pin hole 42 is distributed on an arc with a radius of 15.6 mm and a guide rail screw 411 as the center point. The arc angle is 112°, and the line connecting the center point of the guide rail screw 411 and the center point of the cam bearing 55 is the arc angle bisector; when the pin 434 is pulled out, the first ball groove 431 can be adjusted to rotate around the guide rail screw 411 until the chip breaker 31 is aligned with the optimal chip breaking position, and then the pin 434 is inserted into the second pin hole 4310 and the first pin hole 42 to fix the guide rail 41. By replacing the connecting rod 34 of different lengths, the farthest impact position of the chip breaker 31 can be controlled. For example, when the guide rail 41 rotates to the angle bisector of the arc of the first pin hole 42 and is equipped with a connecting rod 34 with a length of 17 mm, the chip breaker 31 can just break chips at the tip position of the blade 1. The comprehensive use of adjusting the steering structure and replacing the connecting rod 34 of different lengths can make the chip breaking function dynamically adaptable.

[0124] It should be noted that the transmission mechanism further includes:

[0125] A cam bearing 55 is mounted on the cam 51 in the cam center hole 512;

[0126] The screw 56 passes through the cam bearing 55 and is fixedly connected to the main shaft to reduce kinetic energy loss.

[0127] According to the internally cooled and driven adjustable chip breaker device of the present invention, based on the one-way channel of coolant formed inside the blade 1 and the tool rod 2, it can effectively reduce the temperature of the cutting tool while realizing the active chip breaking function. The kinetic energy of the coolant is converted into mechanical power to drive the chip breaker 31 through the power mechanism and the transmission mechanism, without the need for additional power motors and other devices, thereby reducing the overall volume of the chip breaker device and reducing energy loss. The stroke and movement direction of the chip breaker 31 can be adjusted by the chip breaking mechanism and the steering mechanism, making the chip breaker device more dynamically adaptable to chip breaking.

[0128] Example 2

[0129] like Figure 2 and Figure 3 As shown, this embodiment is further optimized on the basis of embodiment 1, and provides an internally cooled driven adjustable chip breaker device, wherein a cooling groove 11 is provided in the blade 1 and is connected to the first branch channel.

[0130] It should be noted that, on the same horizontal cross section, the area of ​​the cooling groove 11 accounts for one third of the total area of ​​the blade 1. Furthermore, the cooling groove 11 is arranged close to the processing part of the blade 1 to facilitate efficient cooling.

[0131] When high-pressure coolant passes through the second branch channel, the coolant flows through the internal channel of the second branch channel and the first liquid inlet 12 through the second liquid inlet 21, and then flows to the cooling groove 11 of the blade 1. The coolant is close to the heat source distribution area of ​​the blade, increasing the heat exchange area between the coolant and the blade, so that the cooling efficiency of the unit coolant is maximized.

[0132] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0133] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0134] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification does not necessarily mean that they are all the same embodiments, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0135] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An internally cool driven adjustable chip breaker, characterized in that: include: A blade (1) having a first branch channel therein; A knife bar (2) is fixedly connected to the blade (1), and has a second branch channel inside thereof, which communicates with the first branch channel to form a one-way channel for the coolant. The knife bar (2) is provided with a mounting groove (20), and the mounting groove (20) is communicated with the second branch channel. An end cover (23) is installed above the mounting groove (20) and is fixedly connected to the knife bar (2); Chip breaking mechanism, including: Chip breaker (31); A chip breaker holder (32), one end of which is fixedly connected to the chip breaker (31); A slider (33) is fixedly connected to the chip breaker holder (32); A connecting rod (34), one end of which is fixedly connected to the slider (33) and the other end of which is provided with a roller bearing (341); A steering mechanism, mounted on the surface of the tool rod (2) and slidably connected to the slider (33), for adjusting the chip breaking direction of the chip breaker (31); A transmission mechanism having a cam (51) mounted on the knife bar (2), wherein the cam (51) is provided with a cam groove (511) for mounting the roller bearing (341); A power mechanism is installed in the installation groove (20), and the power mechanism includes an impeller (61). The impeller (61) has a main shaft, and the main shaft is connected to the transmission mechanism.

2. The internally cooled and adjustable chip breaker device according to claim 1, characterized in that: The transmission mechanism comprises: The column base body (50) is provided with a sink groove, and the inner ring of the column base body (50) located in the sink groove is provided with outer gear teeth (501); A cam (51) is rotatably connected to the column base body (50), the main shaft is rotatably connected to the cam (51), and the cam (51) is provided with a plurality of countersunk holes (513); A main gear (52) mounted on the main shaft; A plurality of planetary gear screws (53) are respectively passed through the corresponding countersunk holes (513) and connected to the cam (51); A plurality of planetary gears (54), each planetary gear (54) is rotationally connected to the planetary gear screw (53), and each planetary gear (54) is respectively meshed with the main gear (52) and the outer gear teeth (501).

3. The internally-cooled, driven, adjustable chip breaker according to claim 1, characterized in that: The cam groove (511) comprises: first groove; The second grooves are alternately connected with the first grooves to form a closed loop.

4. The internally-cooled, driven, adjustable chip breaker according to claim 1, characterized in that: A sleeve (611) is provided at the end of the main shaft, and a plurality of blades (612) are mounted on the surface of the main shaft; The power mechanism further comprises: The impeller box (62) is fixedly connected to the blade rod (2) via a shoulder screw (621), wherein the shoulder screw (621) extends into the impeller box (62), and the sleeve (611) is sleeved and rotatably mounted on the shoulder screw (621); A sealing assembly is installed at the connection between the impeller box (62) and the impeller (61); The fixing plate (64) is connected to the impeller box (62) and the end cover (23) respectively.

5. The internally-cooled, driven, adjustable chip breaker device according to claim 4, characterized in that: The main shaft comprises: a first-order shaft (614) integrally connected to the blade (612); A second-order shaft (615), one end of which is connected to the end of the first-order shaft (614), and a side surface of the other end of which is provided with a plurality of spline grooves (6150); The third-order shaft (616) is connected to the end of the second-order shaft (615).

6. The internally-cooled, driven, adjustable chip breaker device according to claim 1, characterized in that: The steering mechanism comprises: A guide rail (41) is slidably connected to the slider (33), and one end of the guide rail (41) is rotatably connected to the knife rod (2); A plurality of first pin holes (42) are formed on the knife rod (2); A locking assembly is connected to the guide rail (41) and is embedded in the first latch hole (42) to limit the rotation direction of the guide rail (41).

7. The internally-cooled, driven, adjustable chip breaker device according to claim 6, characterized in that: The locking assembly comprises: A first ball rolling groove (431) is fixedly connected to the guide rail (41), and the first ball rolling groove (431) is provided with a plurality of second pin holes (4310); A second ball rolling groove (432) is embedded in the surface of the knife rod (2) and cooperates with the first ball rolling groove (431) to form an arc-shaped cavity; A plurality of balls (433) are placed in the arc-shaped cavity; The latch (434) can be embedded in any of the latch holes (42) to lock the guide rail (41).

8. The internally-cooled, driven, adjustable chip breaker device according to claim 2, characterized in that: The transmission mechanism further comprises: A cam bearing (55) is mounted on the cam (51) at the cam center hole (512); A screw (56) passes through the cam bearing (55) and is fixedly connected to the main shaft.

9. The internally-cooled, driven, adjustable chip breaker device according to claim 1, characterized in that: A cooling groove (11) is provided in the blade (1) and is communicated with the first branch channel.

10. The internally-cooled, driven, adjustable chip breaker device according to claim 9, characterized in that: Located on the same horizontal cross section of the blade (1), the area of ​​the cooling groove (11) accounts for one third of the total area of ​​the blade (1).

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