Linkage mechanism and machining device

Abstract

The linkage mechanism is applied to a machining machine table with a main shaft and a cutter, the linkage mechanism comprises a connecting assembly and a driving assembly, the connecting assembly comprises a linkage piece and a connecting piece, one end of the linkage piece is coaxially connected with the main shaft, the other end of the linkage piece is rotationally connected with the connecting piece, and the end, away from the linkage piece, of the connecting piece is coaxially connected with the cutter; the linkage piece is driven by the main shaft and drives the connecting piece and the cutter to rotate; the sleeve assembly is provided with a containing groove, and the linkage piece and the connecting piece are movably inserted into the two opposite ends of the containing groove; the elastic assemblies are arranged in the containing groove and symmetrically arranged in the circumferential direction of the connecting piece at intervals, and each elastic assembly elastically abuts against the circumferential side of the end, close to the linkage piece, of the connecting piece and the sleeve assembly so that the center axis of the connecting piece can be parallel to the center axis of the linkage piece. According to the linkage mechanism and the machining device, the elastic force provided by the multiple sets of elastic assemblies and the centripetal force provided by the main shaft eliminate the radial acting force generated when the cutter deflects, and the machining precision and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a linkage mechanism and a machining device. Background Art

[0002] In the field of machining, the precise matching between the cutting tool and the spindle of the machine tool is crucial for ensuring the machining accuracy of the workpiece. However, the phenomenon of tool yaw easily causes the cutting tool to additionally machine depressions on the surface of the workpiece, resulting in a decrease in dimensional accuracy and surface finish.

[0003] Generally, the yaw amplitude of the cutting tool is adjusted manually. However, the efficiency of manually adjusting the tool yaw is low, and inconsistent measurement results are also generated due to the technical differences between operators. This not only increases the uncertainty in the production process but also affects the overall production efficiency and productivity. Summary of the Utility Model

[0004] In view of the above situation, it is necessary to provide a linkage mechanism and a machining device to improve machining accuracy and production efficiency.

[0005] An embodiment of the present application provides a linkage mechanism applied to a machining machine tool having a spindle and a cutting tool. The linkage mechanism includes:

[0006] A connection component, including a linkage member and a connection member. One end of the linkage member is used for coaxial connection with the spindle, the other end of the linkage member is rotatably connected to the connection member, and the end of the connection member away from the linkage member is used for coaxial connection with the cutting tool. The linkage member is driven by the spindle and drives the connection member and the cutting tool to rotate;

[0007] A sleeve component, provided with a receiving groove, and the linkage member and the connection member are respectively inserted into opposite ends of the receiving groove movably; and

[0008] Multiple groups of elastic components, arranged in the receiving groove at circumferentially spaced and symmetrical intervals along the connection member. Each group of elastic components elastically abuts against the circumferential side of the end of the connection member adjacent to the linkage member and the sleeve component respectively, so that the central axis of the connection member is parallel to the central axis of the linkage member.

[0009] When the above-mentioned linkage mechanism is in use, by means of multiple elastic components respectively elastically abutting against the periphery of the connecting member, the sum of the elastic forces provided by the multiple elastic components and the centripetal force provided by the main shaft can be made greater than the radial force generated when the tool yaws, and the multiple elastic components are symmetrically arranged so that the connecting member is uniformly stressed, thereby eliminating the radial force generated when the tool yaws, so that the central axis of the connecting member coaxially connected to the tool is parallel to the central axis of the linkage member coaxially connected to the main shaft, avoiding the phenomenon of tool yaw during the machining process, improving the machining accuracy, and reducing the process of manually adjusting the tool yaw condition, thus improving the production efficiency.

[0010] In some embodiments, the sleeve assembly includes:

[0011] A sleeve member, including a sleeve body and a mounting body. The sleeve body is provided with a receiving groove, the linkage member is movably inserted into the receiving groove, and the mounting body surrounds the receiving groove and is connected to one side of the sleeve body facing the connecting member;

[0012] A fixing member, detachably connected to the mounting body;

[0013] A rotating member, disposed between the sleeve body and the fixing member and sleeved on the connecting member, and the rotating member is provided with a communication groove that penetrates the rotating member; and

[0014] An adjusting member, sleeved on the connecting member and disposed between the rotating member and the fixing member. One end of the adjusting member penetrates into the communication groove and is threadedly connected to the rotating member. The adjusting member is provided with a placement groove, and the receiving groove, the communication groove and the placement groove are sequentially communicated to form the storage groove. Multiple groups of the elastic components are symmetrically arranged in the placement groove, and each group of the elastic components abuts against the adjusting member. The rotating member rotates in a preset direction under an external force, so that the adjusting member moves in the direction from the connecting member to the linkage member and pushes the multiple groups of the elastic components to elastically abut against the periphery of the connecting member.

[0015] In some embodiments, the connecting member includes:

[0016] A clamping body, movably passing through the fixing member, the placement groove and the communication groove and extending into the receiving groove. One end of the clamping body is rotatably connected to the linkage member, and the other end of the clamping body is used for clamping the tool;

[0017] A abutting body, sleeved on one end of the clamping body adjacent to the linkage member and rotatably connected to the clamping body. Multiple groups of the elastic components all abut against the periphery of the abutting body; and

[0018] The protrusion is protruding from the peripheral side of the clamping body and is spaced apart from the abutting body in a direction from the linkage member to the connecting member. The protrusion is located in the receiving groove and slidably abuts against a side of the fixing member toward the sleeve member to support the clamping body.

[0019] In some embodiments, the fixing member comprises:

[0020] A fixed body, which is arranged on a side of the adjusting member away from the rotating member and is detachably connected to the mounting body, and the fixed member is provided with a receiving groove, which is communicated with the placement groove;

[0021] Two supporting bodies are arranged in the receiving groove at intervals in a direction from the linkage member to the connecting member, and are respectively slidably abutted against opposite sides of the protrusion to support the protrusion.

[0022] In some embodiments, each of the supports comprises:

[0023] A support portion, which is sleeved on the clamping body and is provided with a plurality of through grooves, wherein the plurality of through grooves are evenly arranged on the support portion and all penetrate two opposite sides of the support portion;

[0024] A plurality of rolling parts are arranged corresponding to the plurality of through grooves one by one and are rotatably arranged in the corresponding through grooves. Each of the rolling parts extends out of two opposite sides of the supporting part to slide against the protrusion.

[0025] In some embodiments, a plurality of guide grooves are provided on a side of the fixed body facing the linkage member, the plurality of guide grooves are arranged in one-to-one correspondence with the plurality of groups of elastic components, and the plurality of guide grooves are arranged around the accommodating groove and at equal intervals;

[0026] The adjusting member includes a sliding body and a plurality of adjusting bodies, the sliding body is threadedly connected to the rotating member and is provided with the seating groove, the plurality of adjusting bodies are spaced apart on the groove wall of the seating groove and are respectively arranged one by one with the plurality of guide grooves, one end of each of the adjusting bodies abuts against the corresponding elastic component, the other end of each of the adjusting bodies is movably inserted in the corresponding guide groove, each of the adjusting bodies moves along the axial direction of the connecting member under the guidance of the corresponding guide groove, and pushes the corresponding elastic component along the radial direction of the connecting member.

[0027] In some embodiments, each set of elastic components comprises:

[0028] A sliding member abutting against the corresponding adjusting body;

[0029] The elastic member is connected to an end of the sliding member which is away from the corresponding adjusting body and abuts against the peripheral side of the abutting body.

[0030] In some embodiments, the linkage comprises:

[0031] A linkage body, movably inserted in one end of the receiving slot adjacent to the main shaft and connected to the main shaft;

[0032] A movable body, two ends of which are rotatably connected to the linkage body and the connecting member respectively.

[0033] In some embodiments, the linkage comprises:

[0034] A linkage part, one end of which is connected to the main shaft, and the other end of which is movably inserted into the receiving groove and rotatably connected to the movable body;

[0035] A first bearing portion, sleeved on the linkage portion and abutting against a groove bottom of the receiving groove adjacent to the main shaft;

[0036] A second bearing portion is spaced apart from the first bearing portion in a direction from the movable body to the linkage body, the second bearing portion is sleeved on the linkage portion and abuts against a groove wall of the receiving groove;

[0037] an elastic portion, sleeved on the linkage portion, wherein two ends of the elastic portion elastically abut against the first bearing portion and the second bearing portion respectively; and

[0038] The protrusion is convexly arranged on the peripheral side of the linkage portion and abuts against a side of the second bearing portion away from the elastic portion.

[0039] The present application also provides a processing device, including:

[0040] The linkage mechanism mentioned above;

[0041] The processing machine comprises a spindle and a tool, wherein the spindle is coaxially connected to a linkage member of the linkage mechanism, the tool is coaxially connected to a connecting member of the linkage mechanism, and the spindle is used to drive the linkage member to drive the connecting member and the tool to rotate.

[0042] When the above-mentioned processing device is in use, multiple groups of elastic components are elastically supported on the circumferential side of the connecting piece by respectively using multiple groups of elastic components, so that the sum of the elastic force provided by the multiple groups of elastic components and the centripetal force provided by the main shaft can be greater than the radial force generated by the tool when it is deflected, and the multiple groups of elastic components are symmetrically arranged so that the connecting piece is evenly stressed, thereby eliminating the radial force generated by the tool when it is deflected, so that the central axis of the connecting piece coaxially connected to the tool is parallel to the central axis of the linkage piece coaxially connected to the main shaft, thereby avoiding the deflection of the tool during processing, improving processing accuracy, reducing the process of manually adjusting the deflection of the tool, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic perspective view of the processing device provided by the embodiment of the present application.

[0044] Figure 2 It is Figure 1 a schematic cross-sectional view of the linkage mechanism of the shown processing device along the II-II direction.

[0045] Figure 3 It is Figure 2 a schematic exploded view of the shown linkage mechanism.

[0046] Figure 4 It is Figure 3 a schematic perspective view of the support body in the shown linkage mechanism.

[0047] Description of main component symbols

[0048] Linkage mechanism 100

[0049] Connection component 10

[0050] Linkage member 11

[0051] Linkage body 111

[0052] Linkage part 1111

[0053] First bearing part 1112

[0054] Second bearing part 1113

[0055] Elastic part 1114

[0056] Protrusion part 1115

[0057] Movable body 112

[0058] Connecting piece 12

[0059] Clamping body 121

[0060] Abutting body 122

[0061] Protruding body 123

[0062] Sleeve assembly 20

[0063] Receiving groove 21

[0064] Sleeve piece 22

[0065] Sleeve body 221

[0066] Receiving groove 2211

[0067] Mounting groove 2212

[0068] Mounting body 222

[0069] Contact body 223

[0070] Sealing body 224

[0071] Fixing member 23

[0072] Fixing body 231

[0073] Receiving groove 2311

[0074] Guide groove 2312

[0075] Support body 232

[0076] Support part 2321

[0077] Through groove 2321a

[0078] Rolling part 2322

[0079] Rotating member 24

[0080] Communication groove 241

[0081] Adjusting member 25

[0082] Placement groove 251

[0083] Sliding body 252

[0084] Adjusting body 253

[0085] Elastic component 30

[0086] Sliding part 31

[0087] Elastic part 32

[0088] Processing device 200

[0089] Processing machine table 201

[0090] Spindle 2011

[0091] Cutting tool 2012

[0092] First axis L1

[0093] Second axis L2 Specific embodiments

[0094] The following describes in detail the embodiments of the present application. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0095] In the description of the present application, it should be understood that the terms indicating the azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0096] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the term "connection" 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, an electrical connection, or a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0097] Some embodiments of the present application will be described in detail below with reference to the drawings.

[0098] Please refer to Figure 1 , the embodiment of the present application provides a processing device 200, and the processing device 200 includes a processing machine table 201 and a linkage mechanism 100. The processing machine table 201 includes a main shaft 2011 and a tool 2012, and the main shaft 2011 and the tool 2012 are respectively connected to both ends of the linkage mechanism 100. Please refer to Figure 1 and Figure 2 , the linkage mechanism 100 includes a connection component 10, a sleeve component 20, and multiple groups of elastic components 30. Among them, the tool 2012 can be a milling cutter.

[0099] Please refer to Figure 1 and Figure 2The connecting assembly 10 includes a linkage member 11 and a connecting member 12. One end of the linkage member 11 is used to be coaxially connected to the main shaft 2011, and the other end of the linkage member 11 is rotatably connected to the connecting member 12. The end of the connecting member 12 away from the linkage member 11 is used to be coaxially connected to the tool 2012. The linkage member 11 is used to be driven by the main shaft 2011 and drive the connecting member 12 and the tool 2012 to rotate to process the workpiece. The sleeve assembly 20 is provided with a receiving groove 21, and the linkage member 11 and the connecting member 12 are respectively movably inserted at the opposite ends of the receiving groove 21. A plurality of groups of elastic components 30 are arranged in the receiving groove 21 and are symmetrically arranged at circumferential intervals along the connecting member 12. Each group of elastic components 30 elastically abuts against the peripheral side of the end of the connecting member 12 adjacent to the linkage member 11 and the sleeve assembly 20, so that the central axis of the connecting member 12 is parallel to the central axis of the linkage member 11. Specifically, as Figure 2 As shown, the central axis of the linkage member 11 is the first axis L1, and the central axis of the connecting member 12 is the second axis L2.

[0100] When the linkage mechanism 100 and the processing device 200 are in use, the multiple groups of elastic components 30 are elastically supported on the circumferential side of the connecting member 12, so that the sum of the elastic force provided by the multiple groups of elastic components 30 and the centripetal force provided by the main shaft 2011 can be greater than the radial force generated by the tool 2012 when it is deflected, and the multiple groups of elastic components 30 are symmetrically arranged so that the connecting member 12 is evenly stressed, thereby eliminating the radial force generated by the tool 2012 when it is deflected, so that the central axis of the connecting member 12 coaxially connected to the tool 2012 is parallel to the central axis of the linkage member 11 coaxially connected to the main shaft 2011, thereby avoiding the deflection of the tool 2012 during the processing, improving the processing accuracy, reducing the process of manually adjusting the deflection of the tool 2012, and improving production efficiency.

[0101] See also Figure 2 and Figure 3, in some embodiments, the sleeve assembly 20 includes a sleeve member 22, a fixing member 23, a rotating member 24, and an adjusting member 25. The sleeve member 22 includes a sleeve body 221 and a mounting body 222. The sleeve body 221 is provided with a receiving groove 2211, and the linkage member 11 is movably inserted into the receiving groove 2211. The mounting body 222 surrounds the receiving groove 2211 and is connected to one side of the sleeve body 221 facing the connecting member 12. The fixing member 23 is detachably connected to the mounting body 222. The rotating member 24 is disposed between the sleeve body 221 and the fixing member 23 and sleeved on the connecting member 12, and the rotating member 24 is provided with a communication groove 241 that penetrates the rotating member 24. The adjusting member 25 is sleeved on the connecting member 12 and disposed between the rotating member 24 and the fixing member 23. One end of the adjusting member 25 penetrates into the communication groove 241 and is threadedly connected to the rotating member 24. The adjusting member 25 is provided with a placement groove 251. The receiving groove 2211, the communication groove 241, and the placement groove 251 are sequentially communicated to form a storage groove 21. Multiple elastic components 30 are symmetrically disposed in the placement groove 251, and each group of elastic components 30 abuts against the adjusting member 25. The rotating member 24 rotates in a preset direction under an external force, so that the adjusting member 25 moves in the direction from the connecting member 12 to the linkage member 11, and pushes the multiple elastic components 30 to elastically abut against the circumferential side of the connecting member 12.

[0102] In this way, by setting the specific structure of the sleeve assembly 20, the rotating member 24 that rotates in a preset direction can drive the adjusting member 25 to move in the direction from the connecting member 12 to the linkage member 11, so that the adjusting member 25 pushes the multiple elastic components 30 to stably elastically abut against the circumferential side of the connecting member 12, thereby adjusting the elastic force applied by the multiple elastic components 30 to the connecting member 12, so that the sum of the elastic force provided by the elastic component 30 and the centripetal force provided by the main shaft 2011 is always greater than the radial force generated by the tool 2012 during yaw, thereby avoiding yaw of the tool 2012 during the machining process and improving the machining stability.

[0103] Please refer to Figure 2In some embodiments, the connecting member 12 includes a clamping body 121, a resisting body 122 and a protruding body 123. The clamping body 121 movably passes through the fixing member 23, the placement groove 251 and the connecting groove 241 and extends into the receiving groove 2211. One end of the clamping body 121 is rotatably connected to the linkage member 11, and the other end of the clamping body 121 is used to clamp the tool 2012. The resisting body 122 is sleeved on one end of the clamping body 121 adjacent to the linkage member 11 and is rotatably connected to the clamping body 121. The multiple sets of elastic components 30 are all abutted against the peripheral side of the resisting body 122. The protruding body 123 is convexly arranged on the peripheral side of the clamping body 121 and is spaced apart from the resisting body 122 in the direction from the linkage member 11 to the connecting member 12. The protruding body 123 is located in the receiving groove 21 and slidably abuts against the side of the fixing member 23 facing the sleeve member 22 to support the clamping body 121. Exemplarily, the clamping body 121 can be any clamping part, clamping block or similar clamping rod capable of clamping the tool 2012, and the abutting body 122 can be an abutting block with a rolling bearing, which is sleeved on the clamping body 121 to reduce the friction force exerted on the clamping body 121 during rotation.

[0104] In this way, by setting the specific structure of the connecting piece 12, the supporting body 122 can cooperate with multiple groups of elastic components 30 to support the circumferential side of the clamping body 121, effectively absorbing the radial force generated by the tool 2012 when it is deflected, and avoiding the tool 2012 from deflecting. At the same time, the protrusion 123 slides and abuts against the fixing piece 23 to provide sliding support for the clamping body 121, further improving the processing stability of the tool 2012.

[0105] Please continue reading Figure 2 In some embodiments, the fixing member 23 includes a fixing body 231 and two supporting bodies 232. The fixing body 231 is disposed on the side of the adjusting member 25 away from the rotating member 24 and is detachably connected to the mounting body 222, and the fixing member 23 is provided with a receiving groove 2311, which is connected to the placement groove 251. The two supporting bodies 232 are spaced apart in the receiving groove 2311 in the direction from the linkage member 11 to the connecting member 12, and are respectively slidably abutted against the opposite sides of the protrusion 123 to support the protrusion 123.

[0106] In this way, by setting the specific structure of the fixing member 23, the two support bodies 232 can slide and abut against the opposite sides of the protrusion 123 respectively to support the protrusion 123 and the clamping body 121 connected to the protrusion 123, so that the tool 2012 connected to the clamping body 121 can stably process the workpiece, thereby improving the processing stability of the tool 2012.

[0107] See also Figure 2 and Figure 4, in some embodiments, each support 232 includes a support portion 2321 and a plurality of rolling portions 2322. The support portion 2321 is sleeved on the clamping body 121 and is provided with a plurality of through grooves 2321a. The plurality of through grooves 2321a are uniformly arranged on the support portion 2321 and penetrate through opposite sides of the support portion 2321. The plurality of rolling portions 2322 are arranged in one-to-one correspondence with the plurality of through grooves 2321a and are rotatably arranged in the corresponding through grooves 2321a. Each rolling portion 2322 extends out of opposite sides of the support portion 2321 to slidably abut against the convex body 123.

[0108] In this way, by setting the specific structure of the support 232 as described above, rolling contact can be formed between the rolling portion 2322 and the convex body 123, so that the rolling portion 2322 slidably abuts against the convex body 123, thereby reducing the frictional force between the convex body 123 and the support 232, and avoiding the elastic force provided by the elastic component 30 and the centripetal force provided by the main shaft 2011 from being reduced due to excessive frictional force on the convex body 123, and further enabling the elastic component 30 and the main shaft 2011 to cooperate to stably eliminate the radial force generated when the tool 2012 yaws, improving the machining accuracy.

[0109] Please refer to Figure 2 and Figure 3 , in some embodiments, the sleeve member 22 further includes an abutting body 223. The abutting body 223 is sleeved on the clamping body 121. Two sides of the abutting body 223 respectively abut against the abutting body 122 and the sleeve body 221, so that the abutting body 223 slidably abuts against the abutting body 122, thereby avoiding the abutting body 122 being affected by excessive frictional force and affecting the adjustment operation of the elastic component 30 and the main shaft 2011.

[0110] It can be understood that the structure of the abutting body 223 is the same as that of the support 232, which will not be elaborated here. Both the abutting body 223 and the support 232 are annular bodies, and both the abutting body 223 and the support 232 are in clearance fit with the clamping body 121, avoiding interference between the clamping body 121 and the abutting body 223 and the support 232 when the clamping body 121 is adjusted to the vertical state.

[0111] Please continue to refer to Figure 2 and Figure 3, in some embodiments, a plurality of guiding grooves 2312 are provided on one side of the fixing body 231 facing the linkage member 11. The plurality of guiding grooves 2312 are respectively and correspondingly arranged with a plurality of sets of elastic components 30 one by one, and the plurality of guiding grooves 2312 are wound around the accommodating groove 2311 and arranged at equal intervals. The adjusting member 25 includes a sliding body 252 and a plurality of adjusting bodies 253. The sliding body 252 is threadedly connected to the rotating member 24 and is provided with an accommodating groove 251. The plurality of adjusting bodies 253 are spaced on the groove wall of the accommodating groove 251 and are correspondingly arranged with the plurality of guiding grooves 2312 one by one. One end of each adjusting body 253 abuts against the corresponding elastic component 30, and the other end of each adjusting body 253 is movably inserted into the corresponding guiding groove 2312. Each adjusting body 253 moves along the axial direction of the connecting member 12 under the guiding of the corresponding guiding groove 2312, and radially pushes the corresponding elastic component 30 along the connecting member 12.

[0112] Thus, by arranging the adjusting body 253 to be movably inserted into the corresponding guiding groove 2312, when the rotating member 24 rotates in a preset direction, the guiding groove 2312 can guide the adjusting body 253 and the sliding member 31 connected to the adjusting body 253, so that the sliding member 31 drives the plurality of adjusting bodies 253 to move along the axial direction of the connecting member 12, so that the plurality of adjusting bodies 253 radially push and compress the corresponding elastic components 30 to the abutting body 122, thereby adjusting the compression value of the elastic components 30, and further adjusting the magnitude of the elastic force provided by the elastic components 30, so that the radial force generated by the yaw of the cutting tool 2012 is always less than the sum of the elastic force provided by the elastic components 30 and the centripetal force provided by the main shaft 2011, preventing the cutting tool 2012 from yawing.

[0113] Please refer to Figure 2 , in some embodiments, each set of elastic components 30 includes a sliding member 31 and an elastic member 32. The sliding member 31 abuts against the corresponding adjusting body 253, and the elastic member 32 is connected to one end of the sliding member 31 facing away from the corresponding adjusting body 253 and abuts against the circumferential side of the abutting body 122. Exemplarily, the elastic member 32 can be a spring.

[0114] Thus, by setting the specific structure of the above elastic components 30, the sliding member 31 can compress the elastic member 32 to the abutting body 122 under the abutting push of the corresponding adjusting body 253, thereby adjusting the magnitude of the elastic force provided by the elastic member 32, so that the elastic components 30 provide a large enough elastic force to cooperate with the centripetal force provided by the main shaft 2011 to offset the radial force generated by the yaw of the cutting tool 2012, avoiding the yaw phenomenon of the cutting tool 2012.

[0115] Please continue to refer to Figure 2, in some embodiments, the linkage member 11 includes a linkage body 111 and a movable body 112. The linkage body 111 is movably inserted into one end of the receiving groove 21 adjacent to the main shaft 2011 and is connected to the main shaft 2011. Two ends of the movable body 112 are respectively rotatably connected to the linkage body 111 and the connecting member 12.

[0116] Thus, by setting the specific structure of the above-mentioned linkage member 11, when the cutter 2012 and the connecting member 12 connected thereto are in a yaw condition, the movable body 112 can be tilted relative to the main shaft 2011, and the tilting direction is opposite to the yaw direction of the cutter 2012, avoiding the influence of the yaw of the cutter 2012 on the main shaft 2011, ensuring that the main shaft 2011 stably provides centripetal force along the radial direction of the main shaft 2011, and further enabling the elastic component 30 and the main shaft 2011 to stably adjust the connecting member 12 and the cutter 2012 connected thereto to a preset state, that is, the central axis of the main shaft 2011 coaxially connected to the linkage member 11 is parallel to the central axis of the cutter 2012 coaxially connected to the connecting member 12, so as to maintain the machining stability and accuracy of the cutter 2012.

[0117] It can be understood that in this embodiment, the opposite ends of the movable body 112 are respectively rotatably connected to the connecting member 12 and the linkage body 111 through universal joints. In other embodiments, the opposite ends of the movable body 112 can also be rotatably connected to the connecting member 12 and the linkage body 111 through other components.

[0118] Please refer to Figure 2 and Figure 3 , in some embodiments, the sleeve body 221 is further provided with an installation groove 2212. The communication groove 241 is opened at the bottom of the accommodating groove 2211 on the side adjacent to the main shaft 2011. The sleeve member 22 includes a sealing body 224. The sealing body 224 is sleeved on the linkage body 111 and airtightly abuts against the wall of the installation groove 2212. Exemplarily, the sealing body 224 can be a sealing ring.

[0119] Since the cutter 2012 will generate debris and adhere a large amount of coolant when machining the workpiece, thus, by providing the above-mentioned sealing body 224, it can be avoided that the debris and coolant enter into the sleeve body 221 through the gap between the linkage body 111 and the installation groove 2212 and interfere with the normal operation of other components.

[0120] Please refer to Figure 2In some embodiments, the linkage body 111 includes a linkage portion 1111, a first bearing portion 1112, a second bearing portion 1113, an elastic portion 1114, and a protrusion 1115. One end of the linkage portion 1111 is connected to the main shaft 2011, and the other end of the linkage portion 1111 is movably inserted into the receiving groove 21 and is rotatably connected to the movable body 112. The first bearing portion 1112 is sleeved on the linkage portion 1111 and abuts against the bottom of the receiving groove 21 adjacent to the main shaft 2011. The second bearing portion 1113 and the first bearing portion 1112 are spaced apart from each other in a direction from the movable body 112 to the linkage body 111. The second bearing portion 1113 is sleeved on the linkage portion 1111 and abuts against the groove wall of the receiving groove 21. The elastic part 1114 is sleeved on the linkage part 1111, and the two ends of the elastic part 1114 are elastically abutted against the first bearing part 1112 and the second bearing part 1113 respectively, and the protrusion 1115 is protrudingly provided on the peripheral side of the linkage part 1111 and abuts against the side of the second bearing part 1113 away from the elastic part 1114. Exemplarily, the first bearing part 1112 and the second bearing part 1113 can be rolling bearings, and the elastic part 1114 can be a spring.

[0121] In this way, by arranging the first bearing part 1112 and the second bearing part 1113 to be respectively sleeved on the linkage part 1111, the contact area between the linkage part 1111 and the sleeve body 221 can be reduced, thereby reducing the friction force on the linkage part 1111, and then the linkage part 1111 can stably drive the tool 2012 to rotate under the drive of the spindle 2011, thereby improving the processing stability. In addition, when the spindle 2011 drives the tool 2012 to move along the axial direction of the connecting member 12 during high-speed rotation, the second bearing part 1113 is pushed by the protruding part 1115 to compress the elastic part 1114 to the first bearing part 1112, so that the elastic part 1114 can absorb the force generated by the tool 2012 along the axial direction of the connecting member 12, thereby avoiding the generation of burrs on the workpiece during the processing, which helps to improve the processing quality of the workpiece.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A linkage mechanism is applied to a processing machine tool having a main shaft and a tool, and is characterized in that, The linkage mechanism includes: A connection component, including a linkage part and a connecting part. One end of the linkage part is used for coaxial connection with the main shaft, the other end of the linkage part is rotatably connected to the connecting part, and the end of the connecting part away from the linkage part is used for coaxial connection with the tool. The linkage part is driven by the main shaft and drives the connecting part and the tool to rotate; A sleeve component, provided with a receiving groove, and the linkage part and the connecting part are respectively movably inserted into opposite ends of the receiving groove; and Multiple groups of elastic components, arranged in the receiving groove at circumferential intervals and symmetrically along the connecting part. Each group of elastic components elastically abuts against the circumferential side of the end of the connecting part adjacent to the linkage part and the sleeve component, so that the central axis of the connecting part is parallel to the central axis of the linkage part.

2. The linkage mechanism according to claim 1, characterized in that, The sleeve component includes: A sleeve part, including a sleeve body and a mounting body. The sleeve body is provided with a receiving cavity, and the linkage part is movably inserted into the receiving cavity. The mounting body surrounds the receiving cavity and is connected to the side of the sleeve body facing the connecting part; A fixing part, detachably connected to the mounting body; A rotating part, arranged between the sleeve body and the fixing part and sleeved on the connecting part, and the rotating part is provided with a communication groove, and the communication groove penetrates through the rotating part; and An adjusting part, sleeved on the connecting part and arranged between the rotating part and the fixing part. One end of the adjusting part penetrates into the communication groove and is threadedly connected to the rotating part. The adjusting part is provided with a placement groove, and the receiving cavity, the communication groove and the placement groove are sequentially communicated to form the receiving groove. Multiple groups of elastic components are symmetrically arranged in the placement groove, and each group of elastic components abuts against the adjusting part. The rotating part rotates in a preset direction under an external force, so that the adjusting part moves in the direction from the connecting part to the linkage part and pushes multiple groups of elastic components to elastically abut against the circumferential side of the connecting part.

3. The linkage mechanism according to claim 2, wherein, The connecting part includes: A clamping body, movably passing through the fixing part, the placement groove and the communication groove and extending into the receiving cavity. One end of the clamping body is rotatably connected to the linkage part, and the other end of the clamping body is used for clamping the tool; A resisting body, sleeved on one end of the clamping body adjacent to the linkage part and rotatably connected to the clamping body. Multiple groups of elastic components all abut against the circumferential side of the resisting body; and A protruding body, protruding from the circumferential side of the clamping body and spaced from the resisting body in the direction from the linkage part to the connecting part. The protruding body is located in the receiving groove and slidably abuts against the side of the fixing part facing the sleeve part to support the clamping body.

4. The linkage mechanism according to claim 3, characterized in that, The fixing part includes: A fixing body, arranged on the side of the adjusting part away from the rotating part and detachably connected to the mounting body, and the fixing part is provided with a receiving cavity, and the receiving cavity is communicated with the placement groove; Two supporting bodies, spaced in the direction from the linkage part to the connecting part in the receiving cavity, and respectively slidably abut against opposite sides of the protruding body to support the protruding body.

5. The linkage mechanism according to claim 4, characterized in that, Each of the supporting bodies includes: A support portion, which is sleeved on the clamping body and is provided with a plurality of through grooves, wherein the plurality of through grooves are evenly arranged on the support portion and all penetrate two opposite sides of the support portion; A plurality of rolling parts are arranged corresponding to the plurality of through grooves one by one and are rotatably arranged in the corresponding through grooves. Each of the rolling parts extends out of two opposite sides of the supporting part to slide against the protrusion.

6. The linkage mechanism according to claim 4, characterized in that: A plurality of guide grooves are provided on one side of the fixed body facing the linkage member, the plurality of guide grooves are respectively arranged in one-to-one correspondence with the plurality of groups of elastic components, and the plurality of guide grooves are arranged around the accommodating groove and are arranged at equal intervals; The adjusting member includes a sliding body and a plurality of adjusting bodies, the sliding body is threadedly connected to the rotating member and is provided with the seating groove, the plurality of adjusting bodies are spaced apart on the groove wall of the seating groove and are arranged one by one with the plurality of guide grooves, one end of each of the adjusting bodies abuts against the corresponding elastic component, the other end of each of the adjusting bodies is movably inserted in the corresponding guide groove, each of the adjusting bodies moves along the axial direction of the connecting member under the guidance of the corresponding guide groove, and pushes the corresponding elastic component along the radial direction of the connecting member.

7. The linkage mechanism according to claim 6, wherein Each set of elastic components comprises: A sliding member abutting against the corresponding adjusting body; The elastic member is connected to an end of the sliding member which is away from the corresponding adjusting body and abuts against the peripheral side of the abutting body.

8. The linkage mechanism according to claim 1, characterized in that, The linkage comprises: A linkage body, movably inserted in one end of the receiving slot adjacent to the main shaft and connected to the main shaft; A movable body, two ends of which are rotatably connected to the linkage body and the connecting member respectively.

9. The linkage mechanism according to claim 8, wherein The linkage comprises: A linkage part, one end of which is connected to the main shaft, and the other end of which is movably inserted into the receiving groove and rotatably connected to the movable body; A first bearing portion, sleeved on the linkage portion and abutting against a groove bottom of the receiving groove adjacent to the main shaft; A second bearing portion is spaced apart from the first bearing portion in a direction from the movable body to the linkage body, the second bearing portion is sleeved on the linkage portion and abuts against a groove wall of the receiving groove; an elastic portion, sleeved on the linkage portion, wherein two ends of the elastic portion elastically abut against the first bearing portion and the second bearing portion respectively; and The protrusion is convexly arranged on the peripheral side of the linkage portion and abuts against a side of the second bearing portion away from the elastic portion.

10. A processing device, characterized in that, include: The linkage mechanism according to any one of claims 1 to 9; The processing machine comprises a spindle and a tool, wherein the spindle is coaxially connected to a linkage member of the linkage mechanism, the tool is coaxially connected to a connecting member of the linkage mechanism, and the spindle is used to drive the linkage member to drive the connecting member and the tool to rotate.

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