Inner-cooling driving adjustable chip breaking device

Abstract

The invention relates to the technical field of machining for turning, in particular to an inner-cooling driving adjustable chip breaking device. A channel allowing cooling liquid to flow is formed in a blade and a cutter bar, the cutter bar is provided with a chip breaking mechanism, a steering mechanism, a transmission mechanism and a power mechanism, and the steering mechanism is used for adjusting the chip breaking direction of the chip breaking cutter; the transmission mechanism comprises a cam used for driving the chip breaker to act, the power mechanism comprises an impeller, and the impeller is provided with a main shaft, connected with the transmission mechanism and used for providing driving force for the transmission mechanism. Based on the cooling liquid one-way channel, the temperature of the cutting tool can be effectively reduced, and meanwhile the active chip breaking function is achieved. Kinetic energy of cooling liquid is converted into mechanical power for driving the chip breaking cutter to act through the power mechanism and the transmission mechanism, devices such as a power motor do not need to be additionally arranged, and energy loss is reduced while the overall size of the chip breaking device is reduced. And the stroke and the movement direction of the chip breaking cutter can be adjusted through the chip breaking mechanism and the steering mechanism, so that the chip breaking device has better chip breaking dynamic adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of turning processing, and in particular to an internally cooled drive adjustable chip breaking device. Background Art

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

[0003] The existing chip breaking devices have the following defects: I. Passive chip breaking devices: such as the chip curling groove of a turning tool blade, mainly rely on a fixed geometric structure to force the chip to curl and break, but have poor adaptability when cutting parameters change and cannot dynamically respond to the differences in material properties and working conditions; II. Active chip breaking devices: require an external motor to drive the chip breaking mechanism, have problems such as complex structure, low assembly efficiency, insufficient running stability of the motor, etc., and the additional energy consumption increases the processing cost. Summary of the Invention

[0004] The present invention aims to at least improve one of the technical problems existing in the prior art. For this purpose, the present invention provides an internally cooled drive adjustable chip breaking device.

[0005] The technical solution of the present invention is as follows: An internally cooled drive adjustable chip breaking device, which includes: A blade, which has a first branch channel inside; A tool shank, fixedly connected to the blade, which has a second branch channel inside, communicating with the first branch channel to form a one-way channel for coolant. The tool shank is provided with a mounting groove, the mounting groove is communicated with the second branch channel, and an end cover is installed above the mounting groove and fixedly connected to the tool shank; A chip breaking mechanism, including: A chip breaking tool; A chip breaking tool holder, one end of which is fixedly connected to the chip breaking tool; A slider, the surface of which is fixedly connected to the end of the chip breaking tool holder away from the chip breaking tool; A connecting rod, one end of which is fixedly connected to the slider and the other end is provided with a roller bearing; A steering mechanism, rotatably installed on the surface of the tool shank and slidably connected to the slider to adjust the chip breaking direction of the chip breaking tool; A transmission mechanism, installed on the surface of the tool shank, the transmission mechanism includes a cam, the cam is provided with a cam groove for installing the roller bearing, and drives the chip breaking tool holder to move along the direction of the slider by rotating the cam; A power mechanism is installed in the installation groove. The power mechanism includes an impeller which has a main shaft. The main shaft is connected to the transmission mechanism and is used to provide driving force for the transmission mechanism.

[0006] According to the internal cooling drive adjustable chip breaking device of the present invention, based on the unidirectional coolant channel formed inside the blade and the tool shank, it can effectively reduce the temperature of the cutting tool while realizing the active chip breaking function. By converting the kinetic energy of the coolant into mechanical power to drive the chip breaking tool through the power mechanism and the transmission mechanism, there is no need to configure additional devices such as a power motor, reducing the overall volume of the chip breaking device while reducing energy loss. The stroke and movement direction of the chip breaking tool can be adjusted through the chip breaking mechanism and the steering mechanism, making the chip breaking device more adaptable to chip breaking dynamics.

[0007] In a possible technical solution, further, the transmission mechanism includes: A column table body which is provided with a counterbore. A central through hole is provided in the column table body located in the counterbore. External gear teeth are provided on the inner ring of the column table body. The column table body has a threaded hole and is locked on the tool shank through an external wheel screw passing through the column table body; A cam which is rotatably connected to the column table body. A cam central hole is provided in the cam located above the through hole. The main shaft of the impeller passes through the cam central hole and is rotatably connected to the cam. The cam is provided with a plurality of counterbored holes; A main gear which is installed on the main shaft; A plurality of planetary gear screws which are respectively connected to the cam through the counterbored holes; A plurality of planetary gears are all installed in the counterbore, and each planetary gear is correspondingly rotatably connected to the planetary gear screw. Each planetary gear is respectively meshed with the main gear and the external gear teeth. In this embodiment, the planetary gear and the planetary gear screw are connected through a planetary gear bearing and a planetary wheel snap ring.

[0008] In a possible technical solution, further, the cam groove includes a first groove and a second groove. The first groove is located outside the counterbored hole, and the second groove is closer to the side of the cam central hole. The first groove and the second groove are alternately connected to form a closed loop for installing the roller bearing, and the chip breaking tool holder is driven to move along the slider direction through the rotation of the cam.

[0009] In a possible technical solution, further, a sleeve is provided at the end of the main shaft away from the transmission mechanism. A plurality of blades are installed on the surface of the main shaft for driving the impeller to rotate; The power mechanism further includes: The impeller box is fixedly connected to the tool bar by a shoulder screw. Among them, the shoulder screw passes through the bottom of the impeller box and extends into the impeller box. The sleeve is sleeved on the shoulder screw and is rotatably connected to the shoulder screw through an impeller bearing for installing the impeller; The sealing assembly is installed at the connection between the impeller box and the impeller. In this embodiment, the sealing assembly is a lower double-lip seal ring; The fixing piece is respectively connected to the impeller box and the end cover. In this embodiment, the fixing piece is fixedly connected to the end cover by a pin. In this embodiment, an upper double-lip seal ring is provided at the connection between the fixing piece and the main shaft, and an end face seal ring is provided between the fixing piece and the impeller box.

[0010] In a possible technical solution, further, the main shaft of the impeller includes: The first-order shaft is integrally connected to the blade; The second-order shaft is connected to the end of the first-order shaft away from the sealing assembly. Among them, a plurality of spline grooves are provided on the side of the second-order shaft away from the first-order shaft for installing the main gear; The third-order shaft is connected to the end of the second-order shaft away from the first-order shaft, and a threaded hole is provided at the end for connecting the screw and axially fixing the cam bearing at the same time; Wherein the diameters of the first-order shaft, the second-order shaft, and the third-order shaft decrease in sequence.

[0011] In a possible technical solution, further, the steering mechanism includes: The guide rail is slidably connected to the slider, and one end of the guide rail is rotatably connected to the tool bar; A plurality of first pin holes are provided on the tool bar; The locking assembly is connected to the guide rail, and the rotation direction of the guide rail is limited by embedding the locking assembly into the first pin hole.

[0012] In a possible technical solution, further, the locking assembly includes: The first ball groove is fixedly connected to the guide rail, and a plurality of second pin holes are evenly provided at both ends of the first ball groove; The second ball groove is embedded on the surface of the tool bar and cooperates with the first ball groove to form an arc-shaped cavity. Among them, the arc length of the first ball groove is greater than the arc length of the second ball groove; A plurality of balls are placed in the arc-shaped cavity, and the rotation friction of the first ball groove is reduced by the rolling of the balls in the second ball groove, so that the turning of the chip breaking mechanism is smoother and more stable; The pin passes through the second pin hole to be embedded into any one of the pin holes to lock the guide rail.

[0013] In a possible technical solution, further, the transmission mechanism further includes: a cam bearing, mounted on the cam at the cam center hole; a screw, passing through the cam bearing and fixedly connected to the main shaft, for reducing kinetic energy loss.

[0014] In a possible technical solution, further, a cooling groove is formed in the blade and is communicated with the first branch channel.

[0015] In a possible technical solution, further, in the same horizontal section, the area of the cooling groove accounts for one-third of the total area of the blade.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 2 is a schematic diagram of the blade channel of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 3 is a schematic diagram of the tool shank channel of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 4 is a cross-sectional schematic diagram of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of the locking assembly of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 6 is a planetary gear operation system diagram of the transmission mechanism of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 7 is a cam cross-sectional view of the transmission mechanism of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 8 is a schematic structural diagram of the impeller of an internally cooled drive adjustable chip breaker device according to an embodiment of the present invention; Figure 9Schematic diagram of the impeller box structure of the internally cooled drive adjustable chip breaker device according to an embodiment of the present invention.

[0019] Reference numerals: Blade 1, cooling groove 11, first liquid inlet 12, first liquid outlet 13; Tool shank 2, second liquid inlet 21, second liquid outlet 22, end cap 23; Chip breaker 31, chip breaker holder 32, slider 33, connecting rod 34, roller bearing 341; Guide rail 41, guide rail screw 411, first pin hole 42, first ball groove 431, second pin hole 4310, second ball groove 432, ball 433, pin 434; Column base body 50, external gear teeth 501, external wheel screw 502, cam 51, cam groove 511, cam center hole 512, counterbore 513, raised edge 514, main gear 52, planetary gear screw 53, planetary gear 54, cam bearing 55, screw 56; 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, fixing piece 64. Detailed implementation manners

[0020] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] 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 also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific implementation manners and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] In the description, claims, and accompanying drawings of this application, the terms "first", "second", "third", etc. are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a series of steps or units are included, or optionally, steps or units not listed are further included, or optionally, other steps or units inherent to these processes, methods, products, or devices are further included.

[0024] Embodiment 1 As Figures 1 to 9 shown, this embodiment provides an internally cooled and drive-adjustable chip-breaking device, which includes: A blade 1, which has a first branch channel inside; A tool shank 2, fixedly connected to the blade 1, which has a second branch channel inside, communicating with the first branch channel to form a one-way channel for coolant. The tool shank 2 is provided with a mounting groove 20, and the mounting groove 20 communicates with the second branch channel. An end cover 23 is installed above the mounting groove 20 and is fixedly connected to the tool shank 2; A chip-breaking mechanism, including: A chip-breaking tool 31, used for punching off chips; A chip-breaking tool holder 32, one end of which is fixedly connected to the chip-breaking tool 31; A slider 33, the surface of which is fixedly connected to the end of the chip-breaking tool holder 32 away from the chip-breaking tool 31; A connecting rod 34, one end of which is fixedly connected to the slider 33, and the other end is provided with a roller bearing 341; A steering mechanism, rotatably installed on the surface of the tool shank 2 and slidably connected to the slider 33 to adjust the chip-breaking direction of the chip-breaking tool 31; A transmission mechanism, installed on the surface of the tool shank 2. The transmission mechanism includes a cam 51, and the cam 51 is provided with a cam groove 511 for installing the roller bearing 341. By rotating the cam 51, the chip-breaking tool holder 32 moves along the direction of the slider 33; A power mechanism, installed in the mounting groove 20. The power mechanism includes an impeller 61, and the impeller 61 has a main shaft, and the main shaft is connected to the transmission mechanism to provide driving force for the transmission mechanism.

[0025] It should be noted that in this embodiment, the first branch channel includes a first liquid inlet 12 and a first liquid outlet 13 to connect with the second branch channel in the tool shank 2. The first liquid inlet 12 and the first liquid outlet 13 are at the same horizontal height. The second branch channel includes a second liquid inlet 21 and a second liquid outlet 22 for the external coolant to enter and circulate. Both the second liquid inlet 21 and the second liquid outlet 22 are arranged at one end of the tool shank 2 away from the blade 1 of the internal coolant turning tool, avoiding the influence of chip impact or vibration on the interface stability during the cutting process, thereby improving the operation safety. In addition, it is beneficial for the secondary utilization of the coolant and convenient for the installation of the power mechanism to provide power for the chip breaker 31. The second liquid inlet 21 and the second liquid outlet 22 are at the same horizontal height, and the second liquid inlet 21 is lower than the height of the first branch channel, facilitating more uniform cooling of the blade.

[0026] It should be noted that channel sealing rings are provided at the interfaces of the first branch channel and the second branch channel to ensure the sealing between the blade 1 of the internal coolant turning tool and the tool shank 2.

[0027] It should be noted that one end of the connecting rod 34 is connected to the cam 51 through a connecting rod screw, a roller bearing 341, and a connecting rod spring snap ring, and the other end is connected to the slider 33 through a spacer screw, a spacer, and there are various different lengths; one end of the chip breaker holder 32 is connected to the slider 33 through a chip breaker holder screw, and the other end is fixed to the chip breaker 31 through a chip breaker screw; the slider 33 can move along the guide rail 41. When the cam 51 rotates, the outer ring of the roller bearing 341 moves in a straight line along the guide rail 41 in the cam groove 511. In this embodiment, the linear stroke of the roller bearing 341 is 6 mm. The connecting rod 34 moves along with the roller bearing 341 and acts on the slider 33 and the chip breaker holder 32, and further enables the chip breaker 31 to move along with the chip breaker holder 32. Therefore, when the cam 51 rotates, the chip breaker 31 installed on the chip breaking mechanism can perform high-speed reciprocating impacts on the chips, breaking the strip-shaped chips into granular chips. For each rotation of the cam 51, the chip breaker 31 reciprocates 3 cycles, with high chip breaking efficiency. By periodically impacting the chips so that the chips break from strip-shaped to granular, the active chip breaking of the chip breaker 31 is realized. After the connecting rod 34 changes its length, the farthest impact position of the chip breaker 31 can be changed to adapt to different cutting parameters.

[0028] It should be noted that the transmission mechanism includes: A column platform body 50, which is provided with a sunk groove. A through hole is provided in the column platform body 50 located in the sunk groove. External gear teeth 501 are arranged on the inner circle of the column platform body 50. The column platform body 50 has a threaded hole, and is locked on the tool shank 2 through an external wheel screw 502 passing through the column platform body 50. The cam 51 is rotatably connected to the column table body 50. The cam 51 located 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 rotatably connected to the cam 51. The cam 51 is provided with three countersunk holes 513; The main gear 52 is installed on the main shaft, Three planetary gear screws 53 respectively pass through the countersunk holes 513 and are connected to the cam 51; Three planetary gears 54 are all installed in the sink groove, and each planetary gear 54 is correspondingly rotatably connected to the planetary gear screw 53. Each planetary gear 54 is respectively meshed and 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 by a planetary gear bearing and a planetary wheel snap ring.

[0029] As the impeller 61 rotates stably clockwise, the main gear 52 connected to the spline groove 6150 on the impeller 61 rotates. Since the planetary gear 54 is meshed with the main gear 52 and the outer gear teeth 501, the 3 planetary gears 54 rotate meshingly with the main gear 52. The cam 51 connected above the planetary gear 54 by the planetary gear screw 53 will rotate clockwise together 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 breaking mechanism, which can reduce the rotation speed of the power mechanism and increase the torque of the cam 51, thereby increasing the driving force of the chip breaking mechanism.

[0030] It should be noted that a circular groove is provided on the circumferential side at the edge of the upper surface of the column table body 50. The bottom of the cam 51 is provided with a raised edge 514. The raised edge 514 is embedded in the circular groove and can rotate around the circular groove. Among them, an outer wheel ball 502 is provided between the raised edge 514 and the circular groove to reduce the contact friction force, so that the circular boss rotates more smoothly around the circular groove.

[0031] It should be noted that the cam groove 511 includes: The first groove, which is located outside the countersunk hole 513; The second groove, which is on the side approaching the cam center hole 512; The first groove and the second groove are alternately connected to form a closed loop for installing the roller bearing 341. The cam 51 rotates to drive the chip breaking tool holder 32 to move along the direction of the slider 33.

[0032] It should be noted that a sleeve 611 is provided at the end of the main shaft far from the transmission mechanism. A plurality of blades 612 are installed on the surface of the main shaft for driving the impeller 61 to rotate. In this embodiment, the number of the blades 612 is eight.

[0033] The power mechanism further includes: An impeller box 62, fixedly connected to the tool bar 2 through a shoulder screw 621. Among them, 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 through an impeller bearing 613 for installing the impeller 61; A sealing assembly, 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; A fixing piece 64, respectively connected to the impeller box 62 and the end cover 23. In this embodiment, the fixing piece 64 is fixedly connected to the end cover 23 through a pin. In this embodiment, an upper double-lip sealing ring is provided at the connection between the fixing piece 64 and the main shaft, and an end face sealing ring is provided between the fixing piece 64 and the impeller box 62.

[0034] It should be noted that, in this embodiment, the impeller box 62 includes five arc-shaped baffles arranged at intervals in a ring shape. An opening is formed between every two arc-shaped baffles. The five openings are circularly arranged around the center point of the impeller box 62. Among them, at the end of the second branch channel communicating with the first liquid outlet 13, a cut surface A of the arc-shaped baffle at the cut is parallel to the second branch channel, and a cut surface B of another arc-shaped baffle at the cut is arranged at an angle to the cut surface A. The opening gradually contracts along the direction of coolant inflow. Through the impeller box 62, the high-pressure coolant can impact the impeller 61 clockwise in the impeller box 62.

[0035] By setting the power mechanism, the coolant can flow through the blade 1 of the internal coolant turning tool, flow into the installation 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, causing the impeller 61 to rotate and drive the transmission mechanism to move, and finally causing the chip breaker 31 to reciprocate, thereby realizing chip breaking; at the same time, the resistance of the impeller 61 to the coolant reduces its flow rate, thereby prolonging the residence time of the coolant in the first branch channel of the blade 1. Thus, on the premise of reducing the coolant flow rate, the heat conduction efficiency is maximized, realizing the coordinated optimization of "kinetic energy utilization - efficient cooling - energy saving and consumption reduction", and improving the comprehensive utilization rate of the coolant.

[0036] It should be noted that the main shaft of the impeller 61 includes: A first-order shaft 614, integrally connected to the blade 612; The second-order shaft 615 is connected to the end of the first-order shaft 614 away from the sealing assembly. Multiple spline grooves 6150 are provided on the side of the second-order shaft 615 away from the first-order shaft 614 for mounting the main gear 52. The third-order shaft 616 is connected to the end of the second-order shaft 615 away from the first-order shaft 614. A threaded hole is provided at the end for connecting the connecting screw 56 and axially fixing the cam bearing 55 at the same time. The diameters of the first-order shaft 614, the second-order shaft 615, and the third-order shaft 616 decrease in sequence.

[0037] When the coolant flows to the installation 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. Then the coolant flows out of the installation groove 20, and the kinetic energy of the coolant is converted into the kinetic energy of the impeller 61 through the power mechanism.

[0038] It should be noted that the steering mechanism includes: The guide rail 41 is slidably connected to the slider 33. One end of the guide rail 41 is rotatably connected to the tool bar 2. In this embodiment, one end of the guide rail 41 is restricted to the surface of the tool bar 2 by a guide rail screw 411, and a thrust bearing is provided between the guide rail 41 and the tool bar 2. Multiple first pin holes 42 are provided on the tool bar 2. The locking assembly is connected to the guide rail 41. By inserting the locking assembly into the first pin holes 42, the rotation direction of the guide rail 41 is restricted.

[0039] It should be noted that the locking assembly includes: The first ball groove 431 is fixedly connected to the guide rail 41. A plurality of second pin holes 4310 are evenly provided at both ends of the first ball groove 431. In this embodiment, both the first pin holes 42 and the second pin holes 4310 are square holes and have the same size. The first ball groove 431 is fixed to the guide rail 41 by a flat-end set screw, enabling the guide rail 41 to rotate around the guide rail screw 411. The second ball groove 432 is embedded in the surface of the tool bar 2 and cooperates with the first ball groove 431 to form an arc-shaped cavity. The arc length of the first ball groove 431 is greater than the arc length of the second ball groove 432. It should be noted that in this embodiment, the first pin holes 42 and the second ball groove 432 are located on the same arc, and the second ball groove 432 is arranged between the first pin holes 42, facilitating matching the rotation path of the first ball groove 431.

[0040] A plurality of balls 433 are placed in the arc-shaped cavity. By rolling the balls 433 in the second ball groove 432, the rotational friction of the first ball groove 431 is reduced, thereby making the turning of the chip-breaking mechanism smoother and more stable. A pin 434 passes through the second pin hole 4310 and is embedded in any one of the pin holes 42 to lock the guide rail 41.

[0041] It should be noted that in this embodiment, the first pin holes 42 are distributed on an arc with the center of the guide rail screw 411 as the center point and a radius of 15.6 mm. The arc angle is 112°, and the connection line between the center point of the guide rail screw 411 and the center point of the cam bearing 55 is the angular bisector of the arc angle. 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-breaking tool 31 is aligned with the optimal chip-breaking position. 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 with different lengths, the farthest impact position of the chip-breaking tool 31 can be controlled. For example, when the guide rail 41 rotates to the angular bisector of the arc of the first pin hole 42 and the connecting rod 34 with an assembly length of 17 mm is installed, the chip-breaking tool 31 can exactly break the chips at the tip position of the blade 1. By comprehensively using the adjustment of the steering structure and replacing the connecting rod 34 with different lengths, the chip-breaking function can have dynamic adaptability.

[0042] It should be noted that the transmission mechanism further includes: A cam bearing 55 is installed at the cam 51 in the cam center hole 512; A screw 56 passes through the cam bearing 55 and is fixedly connected to the main shaft to reduce kinetic energy loss.

[0043] According to the internal cooling drive adjustable chip-breaking device of the present invention, based on the coolant one-way channel formed inside the blade 1 and the tool shank 2, while effectively reducing the temperature of the cutting tool, the active chip-breaking function can be realized. The kinetic energy of the coolant is converted into mechanical power to drive the chip-breaking tool 31 to act through the power mechanism and the transmission mechanism. There is no need to additionally configure devices such as a power motor, reducing the overall volume of the chip-breaking device and reducing energy loss at the same time. The stroke and movement direction of the chip-breaking tool 31 can be adjusted through the chip-breaking mechanism and the steering mechanism, making the chip-breaking device more adaptable to chip-breaking dynamics.

[0044] Embodiment 2 As Figure 2 and Figure 3 shown, this embodiment makes further optimizations on the basis of Embodiment 1, and provides an internal cooling drive adjustable chip-breaking device. Among them, a cooling groove 11 is opened in the blade 1 and is communicated with the first branch channel.

[0045] 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. Further, the cooling groove 11 is arranged close to the processing area of the blade 1 to facilitate efficient cooling.

[0046] 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 closely adheres to the heat source distribution area of the blade, increasing the heat exchange area between the coolant and the blade, and maximizing the cooling efficiency of the unit coolant.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the invention.

[0048] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0049] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. Mentioning "embodiment" in this article means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0050] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An internally cooled drive adjustable chip breaking device, characterized in that Comprising: A blade (1) having a first branch channel inside; A tool shank (2) fixedly connected to the blade (1), having a second branch channel inside, which communicates with the first branch channel to form a one-way channel for coolant. The tool shank (2) is provided with a mounting groove (20), and the mounting groove (20) communicates with the second branch channel. An end cover (23) is mounted above the mounting groove (20) and is fixedly connected to the tool shank (2); A chip breaking mechanism, comprising: A chip breaker (31); A chip breaker holder (32) fixedly connected to one end of the chip breaker (31); A slider (33) fixedly connected to the chip breaker holder (32); A connecting rod (34) fixedly connected to one end of the slider (33), and a roller bearing (341) is provided at the other end; A steering mechanism mounted on the surface of the tool shank (2) and slidably connected to the slider (33) to adjust the chip breaking direction of the chip breaker (31); A transmission mechanism having a cam (51) mounted on the tool shank (2), and the cam (51) is provided with a cam groove (511) for mounting the roller bearing (341); A power mechanism mounted in the mounting 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 drive adjustable chip breaking device according to claim 1, wherein, The transmission mechanism includes: A columnar table body (50) having a counterbore. An outer gear tooth (501) is provided on the inner circle of the columnar table body (50) located in the counterbore; A cam (51) rotatably connected to the columnar table 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) respectively passing through the corresponding countersunk holes (513) and connected to the cam (51); A plurality of planetary gears (54). Each planetary gear (54) is rotatably connected to the planetary gear screw (53) correspondingly, and each planetary gear (54) is respectively meshed and connected to the main gear (52) and the outer gear tooth (501).

3. The internally cooled drive adjustable chip breaker device according to claim 1, characterized in that, The cam groove (511) includes: A first groove; A second groove alternately connected to the first groove to form a closed loop.

4. The internal cooling driven adjustable chip breaking device 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 includes: An impeller box (62) fixedly connected to the tool shank (2) by a shoulder screw (621). Wherein, the shoulder screw (621) extends into the impeller box (62), and the sleeve (611) is sleeved and rotates on the shoulder screw (621); A sealing assembly mounted at the connection between the impeller box (62) and the impeller (61); A fixing piece (64) connected to the impeller box (62) and the end cover (23) respectively.

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

6. The internally cooled drive adjustable chip breaking device according to claim 1, wherein, The steering mechanism includes: A guide rail (41) is slidably connected to the slider (33), and one end of the guide rail (41) is rotatably connected to the tool bar (2). A plurality of first pin holes (42) are formed in the tool bar (2). A locking assembly is connected to the guide rail (41), and the rotation direction of the guide rail (41) is restricted by the locking assembly being inserted into the first pin hole (42).

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

8. The internally cooled drive adjustable chip breaker device according to claim 2, characterized in that, The transmission mechanism further includes: A cam bearing (55) is installed at the cam (51) of 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 drive adjustable chip breaker device according to claim 1, wherein A cooling groove (11) is formed in the blade (1) and is communicated with the first branch channel.

10. The internally cooled drive adjustable chip breaking device according to claim 9, characterized in that, On the same horizontal 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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