Ultrasonic cutting device and machine tool

Abstract

The invention belongs to the technical field of cutting equipment, and particularly discloses an ultrasonic cutting device and a machine tool. The ultrasonic cutting device comprises a shell, a sleeve, a cutting mechanism, a balancing weight, a driving mechanism and a conductive slip ring; the sleeve is rotationally connected with the shell; the cutting mechanism comprises an energy converter, an amplitude-change pole and a blade which are sequentially connected in the first direction. The driving mechanism comprises a first transmission assembly, a second transmission assembly and a power assembly; the power assembly drives the cutting mechanism and the balancing weight to reciprocate in the first direction through the first transmission assembly and the second transmission assembly. When the cutting mechanism moves, the moving direction of the balancing weight is opposite to the moving direction of the cutting mechanism. Ultrasonic high-frequency axial vibration is added to the cutting mechanism on the basis of low-frequency axial reciprocating motion, so that the cutting capacity of the ultrasonic cutting device is improved, and the cutting speed of the ultrasonic cutting device is increased; and the balancing weight can balance inertial jitter generated when the cutting mechanism moves, so that a cutter of the cutting mechanism is more stable in cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and in particular to an ultrasonic cutting device and a machine tool. Background Art

[0002] At present, soft sheet products (such as woven fabrics, non-woven fabrics, paper, leather, synthetic materials, composite materials, etc.) require a lot of cutting during the production process, and a cutting machine is usually used to cut the sheet products into specified shapes. The cutting blade is a slender blade with a sharp cutting edge, which advances through the sheet on a specified cutting line, and the blade reciprocates in a direction roughly perpendicular to the material.

[0003] Traditional cutting machines are configured to cut materials by converting rotary motion into up and down reciprocating motion through motor drive. However, the passive motion mechanism of traditional cutting machines is a purely mechanical structure, which uses an eccentric wheel to achieve low-frequency up and down reciprocating motion of the blade. This type of cutting machine has a low upper limit on cutting capacity, and it is difficult to increase the cutting speed and cutting frequency. Summary of the invention

[0004] The purpose of the present invention is to provide an ultrasonic cutting device and a machine tool to solve the technical problems of low cutting upper limit and insufficient cutting speed in the prior art.

[0005] In order to achieve the above-mentioned object, the first aspect of the present invention provides an ultrasonic cutting device, which comprises: a housing, a sleeve, a cutting mechanism, a counterweight, a driving mechanism, and a conductive slip ring; the sleeve is rotatably connected to the housing; the driving mechanism is used to drive the cutting mechanism to reciprocate along a first direction; the cutting mechanism comprises a transducer, a horn, and a blade connected in sequence along the first direction; the sleeve is sleeved on the outside of the horn, and the sleeve rotates coaxially with the horn; the counterweight is located in the housing and movably connected to the housing; the conductive slip ring is arranged in the housing, and the conductive slip ring is located on the outside of the transducer, and the conductive slip ring is electrically connected to the transducer;

[0006] The driving mechanism includes a first transmission assembly, a second transmission assembly, and a power assembly; the first transmission assembly is connected to the cutting mechanism; the second transmission assembly is connected to the counterweight block; the power assembly is connected to the first transmission assembly and the second transmission assembly; the power assembly drives the cutting mechanism and the counterweight block to reciprocate along the first direction through the first transmission assembly and the second transmission assembly, and the moving direction of the counterweight block is opposite to the moving direction of the cutting mechanism.

[0007] Preferably, a limiting ring is sleeved on one end of the amplitude transformer facing the transducer, the inner wall of the limiting ring is in contact with the amplitude transformer, the outer wall of the limiting ring is in contact with the outer shell, and the limiting ring is located at a vibration node.

[0008] Preferably, the power assembly comprises an output shaft and an eccentric wheel; a first eccentric shaft neck and a second eccentric shaft neck are provided on opposite sides of the eccentric wheel, and the eccentric wheel is provided with a mounting shaft hole penetrating the first eccentric shaft neck and the second eccentric shaft neck; the output shaft is installed in the mounting shaft hole, so that the eccentric wheel rotates synchronously with the output shaft;

[0009] The first transmission assembly includes a first bearing sleeve and a first transmission rod, the first bearing sleeve is arranged on the first eccentric journal, and the first bearing sleeve is connected to the transducer through the first transmission rod;

[0010] The second transmission assembly includes a second bearing sleeve and a second transmission rod. The second bearing sleeve is mounted on the second eccentric journal. The second bearing sleeve is connected to the counterweight block through the second transmission rod.

[0011] Preferably, on the same radial cross-sectional plane of the output shaft, a projection of the first eccentric journal on the cross-sectional plane and a projection of the second eccentric journal on the cross-sectional plane are symmetrical about the rotation center of the output shaft.

[0012] Preferably, it also includes: a mounting top plate; a mounting boss is provided on the inner side of the outer shell; the mounting top plate is connected to the mounting boss, a mounting space is provided between the outer shell and the mounting top plate, and the eccentric wheel is located at the mounting space; the output shaft passes through the mounting space, one end of the output shaft is rotatably connected to the mounting top plate, and the other end of the output shaft is rotatably connected to the outer shell.

[0013] Preferably, both ends of the output shaft are sleeved with mounting bearings, and the output shaft is rotatably connected to the mounting top plate and the housing respectively through the two mounting bearings.

[0014] Preferably, the first bearing sleeve is provided with a first mounting surface; the first mounting surface is connected to the first transmission rod;

[0015] The second bearing sleeve is provided with a second mounting surface, and the second mounting surface is connected to the second transmission rod;

[0016] Wherein, the first mounting surface is parallel to the rotation axis of the first bearing sleeve; the second mounting surface is parallel to the rotation axis of the second bearing sleeve.

[0017] Preferably, the housing is provided with a guide rail whose length direction is parallel to the first direction; and the counterweight block is slidably connected to the guide rail.

[0018] Preferably, the guide rail is provided with a first mounting hole, and the guide rail is fixed to the housing by a fixing member passing through the first mounting hole.

[0019] Preferably, the counterweight block is provided with a mounting position, and the second transmission rod is connected to the mounting position.

[0020] Preferably, the housing is provided with a first assembly hole, the first assembly hole corresponds to the installation position, and a detachable first sealing plug is provided in the first assembly hole.

[0021] Preferably, the first bearing sleeve is rotatably connected to the first transmission rod, the connection between the transducer and the amplitude transformer is located at a first vibration node, and one end of the first transmission rod away from the first bearing sleeve is connected to the transducer at the first vibration node.

[0022] Preferably, the first transmission rod includes a fixed block, a rotating shaft, a clamping block and a pull rod; the fixed block is fixed on the first bearing sleeve, and a limited end and a connecting end are respectively provided at both ends of the rotating shaft; the limited end of the rotating shaft is arranged in the fixed block, and the limited end of the rotating shaft is rotatably connected to the fixed block; the connecting end of the rotating shaft is connected to the clamping block; one end of the pull rod is connected to the clamping block, and the other end of the pull rod is connected to the transducer at the first vibration node position; the pull rod and the rotating shaft are arranged in sequence along the first direction, and the rotating shaft is located on the side of the pull rod away from the transducer.

[0023] Preferably, the clamp block includes a fixed plate, a first clamp plate, and a second clamp plate; the fixed plate is provided with a first mounting clamp groove and a second mounting clamp groove; the connecting end of the rotating shaft is located in the first mounting clamp groove, and the end of the pull rod connected to the clamp block is located in the second mounting clamp groove, the first clamp plate is connected to the fixed plate and the first clamp plate is used to cooperate with the fixed plate to fix the connecting end of the rotating shaft in the first mounting clamp groove; the second clamp plate is connected to the fixed plate and the second clamp plate is used to cooperate with the fixed plate to fix the end of the pull rod connected to the clamp block in the second mounting clamp groove.

[0024] Preferably, the first mounting clamp groove includes a accommodating area and a limiting area, the accommodating area is located on the side of the limiting area away from the first bearing sleeve; the connecting end of the rotating shaft is provided with a clamping joint, the clamping joint is located in the accommodating area, and the outer diameter of the clamping joint is larger than the width of the limiting area; the groove surface of the second mounting clamp groove is provided with a plurality of radially recessed first clamping grooves toward the pull rod.

[0025] Preferably, the fixing block is provided with a second mounting hole, the second mounting hole is communicated with the first mounting clip groove, and a positioning groove is provided at a position of the rotating shaft corresponding to the second mounting hole; the rotating shaft is fixed in the first mounting clip groove by a positioning pin inserted into the second mounting hole and the positioning groove;

[0026] One side of the second clamping plate is connected to the fixing block, and the other side of the second clamping plate is a suspended side with a first gap between the second clamping plate and the fixing block; the suspended side of the second clamping plate is connected to the fixing plate via a threaded connector.

[0027] Preferably, the pull rod and the second transmission rod are both made of carbon fiber rods.

[0028] Preferably, the pull rod and the second transmission rod are both made of rigid material, the clamping block is connected to the pull rod via a first rocker, and the second bearing sleeve is connected to the second transmission rod via a second rocker.

[0029] Preferably, it also includes a clamping member with an external thread; the transducer includes a mounting rod, the mounting rod is connected to the amplitude changing rod, and a first mounting through hole is provided in the mounting rod and penetrates along the first direction; the inner wall of the first mounting through hole has an internal thread, the clamping member is sleeved on one end of the pull rod away from the clamping block, and the external thread of the clamping member is threadedly connected to the internal thread.

[0030] Preferably, the clamping member is provided with a clamping hole for clamping the pull rod, and the clamping member is provided with a second slit communicating with the clamping hole, and the length direction of the second slit is parallel to the first direction.

[0031] Preferably, the number of the second slits is at least two, and the at least two second slits are evenly distributed around the axis of the clamping member.

[0032] Preferably, a plurality of second clamping grooves which are radially recessed toward the pull rod are arranged inside the clamping hole, and the plurality of second clamping grooves are evenly spaced along the axial direction of the pull rod.

[0033] Preferably, the clamping hole is in a flared shape, and the diameter of the clamping hole at one end facing the clamping block is larger than the diameter of the clamping hole at one end facing away from the clamping block.

[0034] Preferably, the amplitude transformer is provided with a second mounting through hole, the second mounting through hole passes through the amplitude transformer along the first direction and corresponds to the first mounting through hole, the maximum outer diameter of the clamping member is smaller than the minimum inner diameter of the second mounting through hole; and a second assembly hole recessed along the first direction is provided at one end of the clamping member away from the clamping block.

[0035] Preferably, it also includes: a first clamping ring; the limiting ring includes a first supporting ring and a limiting piece; the first supporting ring is sleeved on one end of the amplitude changing rod facing the transducer, the first supporting ring is located between the amplitude changing rod and the sleeve, the limiting piece is located between the first supporting ring and the amplitude changing rod, and the sleeve is provided with a first mounting step; the limiting piece is located between the first mounting step and the first clamping ring; the first clamping ring is threadedly connected to the sleeve, and the first clamping ring is used to press the limiting piece toward the first mounting step.

[0036] Preferably, the amplitude transformer comprises a primary rod body, a secondary rod body, and a connecting column; the primary rod body and the secondary rod body are sequentially distributed along the first direction, the primary rod body is connected to the transducer, and the secondary rod body is connected through the connecting column; the first supporting ring is sleeved on the end of the primary rod body away from the secondary rod body, a second supporting ring is sleeved between the end of the secondary rod body away from the primary rod body and the sleeve, the outer side surface of the second supporting ring is in contact with the sleeve, the inner side surface of the second supporting ring is in contact with the secondary rod body, and the second supporting ring is located at the second vibration node.

[0037] Preferably, it also includes a second clamping ring; the sleeve is provided with a second mounting step; the second support ring is located between the second mounting step and the second clamping ring, the second clamping ring is threadedly connected to the sleeve, and the second clamping ring is used to press the second clamping ring toward the second mounting step.

[0038] Preferably, the second support ring is provided with a positioning hole, the secondary rod body is provided with a positioning slot corresponding to the positioning hole, the positioning slot extends along the first direction, and the sleeve is provided with a positioning pin for inserting into the positioning hole and the positioning slot.

[0039] Preferably, the limiting member is a limiting ring, the inner side surface of the limiting ring is in contact with the first support ring, and the inner side surface of the limiting ring is provided with a first oil guide groove, and the limiting ring and the sleeve are both provided with a first oil filling hole connected to the first oil guide groove.

[0040] Preferably, a second oil guide groove is provided on the inner side surface of the second support ring, and the sleeve and the second support ring are both provided with a second oil filling hole connected with the second oil guide groove.

[0041] Preferably, the sleeve comprises a variable amplitude rod support section, a shell connecting section and a machine tool connecting section which are arranged in sequence along the first direction, and the blade extends out of the machine tool connecting section; the diameters of the variable amplitude rod support section, the shell connecting section and the machine tool connecting section gradually decrease; a rotating bearing is sleeved on the outer side of the shell connecting section, and the shell connecting section is rotatably connected to the outer shell through the rotating bearing; a third installation step is provided on the side of the variable amplitude rod support section facing the shell connecting section, and a pressure cover is provided on the side of the shell connecting section away from the variable amplitude rod connecting section, the pressure cover is threadedly connected to the shell connecting section, and the pressure cover is used to press the rotating bearing toward the third installation step; the outer shell is provided with an end cover for covering the outer edge of the rotating bearing.

[0042] Preferably, a plurality of outwardly projecting steps are provided on the outer side of the machine tool connecting section, and the plurality of outwardly projecting steps are arranged in sequence along the first direction and the closer the outwardly projecting step is to the blade, the smaller the outer diameter is; each of the outwardly projecting steps is provided with an air groove; wherein the air groove located in the middle part of the machine tool connecting section is provided with an air hole connected to the inner wall of the sleeve, and the air groove on the outwardly projecting step farthest from the shell connecting section extends to the end face of the machine tool connecting section away from one end of the shell connecting section; an air through hole is provided at one end of the amplitude changing rod facing the transducer; the inner cavity of the sleeve is connected with the air through hole and the air hole.

[0043] Preferably, a threaded connection hole is provided on the outer side of the machine tool connection section, and the machine tool connection section is used to be connected to an assembly kit on a machine tool by means of screws extending into the threaded connection hole.

[0044] Preferably, the housing is provided with a cooling air passage, and the cooling air passage is communicated with the air through hole.

[0045] Preferably, it further comprises at least one fan; the fan is arranged on the housing, and the air outlet of the fan is connected to the cooling air duct; a convection port connected to the cooling air duct and facing the transducer is arranged on the side of the housing away from any one of the fans.

[0046] Preferably, the housing is provided with a slip ring cable hole, and the inner side of the housing is provided with a mounting groove for accommodating the conductive slip ring.

[0047] Preferably, it further comprises a chuck; a third mounting hole is arranged on the side of the amplitude transformer, the chuck is located in the third mounting hole, and the chuck is provided with a blade mounting portion for mounting the blade.

[0048] Preferably, a top screw threaded hole connected to the third mounting hole is provided at one end of the amplitude changing rod facing away from the transducer; a conical groove is provided on the side of the chuck corresponding to the top screw threaded hole, and the top screw threaded hole is threadedly connected with an installation top screw, and the installation top screw is used to press the chuck against the inner wall of the third mounting hole.

[0049] Preferably, the blade mounting portion includes a first clamp arm and a second clamp arm, a mounting groove for clamping the blade is formed between the first clamp arm and the second clamp arm, the blade is inserted into the mounting groove, the conical groove is arranged on the first clamp arm and the mounting groove is located on the side of the conical groove away from the top screw threaded hole.

[0050] Preferably, the central axis of the tapered groove is located in the middle of the mounting groove.

[0051] Preferably, the first clamping arm is provided with a mounting surface which is perpendicular to the central axis of the tapered groove.

[0052] The second aspect of the present invention also provides a machine tool, which includes a driving device, an assembly kit connected to the driving device, and an ultrasonic cutting device as described above, wherein a screw mounting hole is provided on the outer side of the sleeve, and the sleeve is connected to the assembly kit by a screw extending into the screw mounting hole, and the driving device is used to drive the ultrasonic cutting device to move.

[0053] The ultrasonic cutting device and machine tool provided by the present invention have the following beneficial effects: by adding ultrasonic components such as transducers and amplitude transformers, ultrasonic high-frequency axial vibration is added to the cutting tool on the basis of the original low-frequency axial reciprocating motion, thereby improving the cutting speed and cutting capacity of the cutting machine, so that the cutting machine of the present application can efficiently cut thicker leather, non-woven fabrics and other soft sheets; at the same time, the present application uses a driving mechanism to drive the cutting mechanism and the counterweight block to move in opposite directions in the first direction at the same time, which can not only make the cutting mechanism move back and forth in the first direction, so that the blade reciprocates on the object to be cut (or cut), but also the weight of the counterweight block and the opposite movement can balance the inertial jitter generated by the cutting machine during the reciprocating motion after the addition of the ultrasonic components, so that the ultrasonic cutting device can achieve anti-shake, so that the tool of the cutting machine can cut the object more smoothly.

[0054] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a schematic structural diagram of an ultrasonic cutting device according to an embodiment of the present invention;

[0056] Figure 2is a schematic cross-sectional structure diagram of an ultrasonic cutting device according to an embodiment of the present invention;

[0057] Figure 3 is a schematic cross-sectional structure diagram of a limiting collar in an embodiment of the present invention being located between a sleeve and a horn;

[0058] Figure 4 is a schematic cross-sectional structural diagram of a first support ring located between a limiting member and a horn according to an embodiment of the present invention;

[0059] Figure 5 is a schematic structural diagram of an embodiment of the present invention in which the second support ring is located between the sleeve and the horn;

[0060] Figure 6 It is a schematic diagram of the assembly structure of the first transmission assembly, the second transmission assembly and the power assembly according to an embodiment of the present invention;

[0061] Figure 7 is a schematic structural diagram of a power assembly according to an embodiment of the present invention;

[0062] Figure 8 is a schematic structural diagram of a second transmission assembly according to an embodiment of the present invention;

[0063] Fig. 9 is a schematic structural diagram of a first transmission assembly according to an embodiment of the present invention;

[0064] Fig.10 is a schematic cross-sectional structural diagram of a first transmission assembly according to an embodiment of the present invention;

[0065] Fig.11 is a schematic diagram of the exploded structure of the first transmission assembly of an embodiment of the present invention;

[0066] Fig.12 is a schematic cross-sectional structural diagram of a first transmission assembly according to another embodiment of the present invention;

[0067] Fig.13 is a schematic structural diagram of a clamping member according to an embodiment of the present invention;

[0068] Fig.14 is a schematic cross-sectional structure diagram of a clamping member according to an embodiment of the present invention;

[0069] Fig.15 is a schematic structural diagram of a position limiting member according to an embodiment of the present invention;

[0070] Fig.16 is a schematic structural diagram of a second support ring according to an embodiment of the present invention;

[0071] Fig.17 is a schematic structural diagram of a sleeve according to an embodiment of the present invention;

[0072] Fig.18is a schematic diagram of the assembly structure of the horn and the blade according to an embodiment of the present invention;

[0073] Fig.19 It is a schematic diagram of the structure of the secondary rod body and the blade after being disassembled according to an embodiment of the present invention.

[0074] In the figure, 100, housing; 110, top plate installation; 120, bearing installation; 130, guide rail; 140, first assembly hole; 141, first sealing plug; 150, end cover; 160, cooling air duct; 170, convection port;

[0075] 200, sleeve; 210, first installation step; 220, first tightening ring; 230, stopper; 231, first oil guide groove; 240, second tightening ring; 250, positioning pin; 260, amplitude transformer support section; 261, third installation step; 270, housing connection section; 271, rotating bearing; 272, gland; 280, machine tool connection section; 281, convex step; 282, air groove; 283, air hole; 284, second installation step;

[0076] 300, cutting mechanism; 310, transducer; 311, mounting rod; 312, first mounting through hole; 313, internal thread; 320, amplitude rod; 321, second mounting through hole; 322, primary rod body; 323, secondary rod body; 324, connecting column; 326, positioning slot; 327, third mounting hole; 328, top screw thread hole; 330, blade; 340, limiting collar; 350, first support ring; 360, second support ring; 361, second oil guide groove; 370, air through hole; 380, chuck; 381, blade mounting part; 382, ​​tapered groove; 383, first clamp arm; 384, second clamp arm; 385, mounting groove; 386, assembly surface; 390, mounting top screw;

[0077] 400, counterweight block; 410, installation position;

[0078] 500, driving mechanism; 510, first transmission assembly; 511, first bearing sleeve; 512, first transmission rod; 513, first mounting surface; 514, fixing block; 5141, second mounting hole; 5142, positioning pin; 5143, first clamping gap; 515, rotating shaft; 5151, clamping joint; 5152, positioning groove; 516, clamping block; 5161, fixing plate; 5162, first clamping plate; 5163, second clamping plate ; 5164, first mounting clamping groove; 5165, second mounting clamping groove; 5166, accommodating area; 5167, limiting area; 5168, first clamping groove; 517, pull rod; 520, second transmission assembly; 521, second bearing sleeve; 522, second transmission rod; 523, second mounting surface; 530, power assembly; 531, output shaft; 532, first eccentric shaft neck; 533, second eccentric shaft neck; 534, eccentric wheel;

[0079] 600, conductive slip ring; 700, clamping member; 710, clamping hole; 720, second clamping gap; 730, second clamping groove; 740, second assembly hole; 800, assembly kit; 900, fan. DETAILED DESCRIPTION

[0080] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0081] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0082] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0083] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0084] Please also read Figures 1 to 19 Now, the ultrasonic cutting device provided in the embodiment of the present invention is described.

[0085] The ultrasonic cutting device includes a first direction X; the first direction X is the axial direction of the ultrasonic cutting device movement, such as Figures 1 to 3 As shown;

[0086] Reference Figures 1 to 3 The ultrasonic cutting device of this embodiment includes: a housing 100, a sleeve 200, a cutting mechanism 300, a counterweight 400, a driving mechanism 500, and a conductive slip ring 600; the sleeve 200 is rotatably connected to the housing 100; the driving mechanism 500 is used to drive the cutting mechanism 300 to reciprocate along a first direction X; the cutting mechanism 300 includes a transducer 310, a horn 320, and a blade 330 connected in sequence along the first direction; for the convenience of description, the blade 330 is located at the front end of the cutting mechanism 300, and the transducer 310 is located at the rear end of the cutting mechanism 300;

[0087] Reference Figures 2 to 4 The sleeve 200 is sleeved on the outside of the amplitude transformer 320, and the sleeve 200 rotates coaxially with the amplitude transformer 320; the counterweight 400 is located in the housing 100 and is movably connected to the housing 100; the conductive slip ring 600 is arranged on the housing 100, and the conductive slip ring 600 is located on the outside of the transducer 310, and the conductive slip ring 600 is electrically connected to the transducer 310; the conductive slip ring 600 is used to provide electrical energy for the transducer 310 and transmit high-frequency vibration to the blade 330 of the amplitude transformer 320.

[0088] Reference Figure 2 , Figures 6 to 9 The driving mechanism 500 includes a first transmission assembly 510, a second transmission assembly 520, and a power assembly 530; the first transmission assembly 510 is connected to the cutting mechanism 300; the second transmission assembly 520 is connected to the counterweight block 400; the power assembly 530 is connected to the first transmission assembly 510 and the second transmission assembly 520; the power assembly 530 drives the cutting mechanism 300 and the counterweight block 400 to reciprocate along the first direction through the first transmission assembly 510 and the second transmission assembly 520; wherein, when the cutting mechanism 300 moves, the moving direction of the counterweight block 400 is opposite to the moving direction of the cutting mechanism 300.

[0089] The driving mechanism 500 is used to provide power for the cutting mechanism 300 and the counterweight 400 to drive the cutting mechanism 300 and the counterweight 400 to move in opposite directions in the first direction at the same time; the reciprocating movement of the cutting mechanism 300 in the first direction can make the blade 330 reciprocate and cut on the object to be cut, so as to improve the cutting ability of the ultrasonic cutting device and the cutting speed of the ultrasonic cutting device. The counterweight 400 is located in the housing 100 and moves in the opposite direction to the cutting mechanism 300 at the same time. After the ultrasonic component is added to the cutting device, due to the imbalance of weight, inertial shaking is easily generated during the cutting process. The counterweight moves in the opposite direction to the cutting mechanism at the same time, so as to balance the inertial shaking, and then the ultrasonic cutting device is anti-shake, so that the cutter of the cutting mechanism 300 can cut the object more smoothly. Among them, the closer the sum of the weight of the counterweight 400 and the second transmission assembly 520 is to the sum of the weight of the cutting mechanism 300 and the first transmission assembly 510, the better the corresponding anti-shake effect is, so as to reduce the tool shaking and better achieve precise cutting. More specifically, the closer the weight of the counterweight block 400 and the second transmission assembly 520 is to the sum of the weights of the front-end moving parts, the better the corresponding anti-shake effect is, that is, the moving parts that move forward and backward synchronously with the transducer and the amplitude transformer.

[0090] The ultrasonic cutting device of this embodiment utilizes a driving mechanism 500 to drive the cutting mechanism 300 and the counterweight block 400 to move in opposite directions in a first direction at the same time. This can not only enable the cutting mechanism 300 to move back and forth in the first direction, but also enable the blade 330 to cut back and forth on the object to be cut, thereby improving the cutting ability of the ultrasonic cutting device and increasing the cutting speed of the ultrasonic cutting device. The movement of the counterweight block 400 can also balance the inertial vibration of the moving parts in the front of the cutting mechanism 300 in the opposite direction to the counterweight block 400 during the cutting process, thereby achieving anti-shake for the ultrasonic cutting device and allowing the tool of the cutting mechanism 300 to cut the object more smoothly.

[0091] Compared with the existing cutting machine, the ultrasonic cutting device of this embodiment adds ultrasonic components such as a transducer 310 and a variable amplitude rod 320 to the traditional cutting machine, thereby adding ultrasonic high-frequency axial vibration to the cutting tool on the basis of the original low-frequency axial reciprocating motion, thereby improving the cutting speed and cutting capacity of the cutting machine, so that the cutting machine can efficiently cut thicker leather, non-woven fabrics and other soft sheets; at the same time, the driving mechanism 500 is used to drive the cutting mechanism 300 and the counterweight block 400 to move in opposite directions in the first direction at the same time, which can not only make the cutting mechanism 300 reciprocate in the first direction, so that the blade reciprocates on the object to be cut, but also the reverse movement of the counterweight block 400 can balance the inertial jitter generated by the cutting machine during the cutting process, so that the ultrasonic cutting device can achieve anti-shake, so that the tool of the cutting machine can cut the object more smoothly.

[0092] In some embodiments of the present invention, reference Figure 3 , a limiting ring 340 is sleeved on one end of the horn 320 facing the transducer 310, the limiting ring 340 is located at the vibration node position, the inner wall of the limiting ring 340 is in contact with the horn 320, and the outer wall of the limiting ring 340 is in contact with the housing 100. Since both the horn 320 and the transducer 310 need to reciprocate in the first direction, but neither the horn 320 nor the transducer 310 needs to move radially, the limiting ring 340 is sleeved on the outer side of the horn 320 to fill the gap between the horn 320 and the housing 100, so as to prevent the horn 320 and the transducer 310 from moving radially when reciprocating, so as to ensure that the cutting mechanism 300 can reciprocate in the first direction and ensure the cutting effect.

[0093] In addition, the limiting ring 340 can also be provided in other forms of support rings between the sleeve 200 and the horn 320 to prevent the horn 320 and the transducer 310 from radially moving when reciprocating, ensuring that the cutting mechanism 300 reciprocates in the first direction to ensure the cutting effect. Figure 4 As shown, in some embodiments of the present invention, the ultrasonic cutting device also includes: a first clamping ring 220; the limiting ring 340 includes a first support ring 350 and a limiting member 230; the first support ring 350 is sleeved on one end of the amplitude transformer 320 facing the transducer 310, the first support ring 350 is located between the amplitude transformer 320 and the sleeve 200, the limiting member 230 is located between the first support ring 350 and the sleeve 200, and the sleeve 200 is provided with a first mounting step 210; the limiting member 230 is located between the first mounting step 210 and the first clamping ring 220; the first clamping ring 220 is threadedly connected to the sleeve 200, and the first clamping ring 220 is used to press the limiting member 230 toward the first mounting step 210. That is, the first clamping ring 220 threadedly connected to the sleeve 200 is used to fix the limiter 230, and then the first support ring 350 is used to fill the gap between the amplitude change rod 320 and the limiter 230 of the sleeve 200 to prevent the amplitude change rod 320 and the transducer 310 from radially moving when reciprocating.

[0094] In some embodiments of the present invention, a flange portion is provided at one end of the amplitude transformer 320 facing the transducer 310, and the rear end edge of the flange portion is radially protruded to form a positioning step so that the first support ring 350 can be positioned at the vibration node. At the same time, the positioning step can also limit the movement of the first support ring toward the transducer side, thereby avoiding excessive transmission of ultrasonic vibration to the structural parts arranged around the periphery of the amplitude transformer, minimizing the amplitude of the structural parts arranged around the periphery of the amplitude transformer, ensuring that the energy transmitted to the blade is maximum and the amplitude is within the maximum range, so as to ensure the cutting ability.

[0095] In some embodiments of the present invention, reference Figures 6 to 9 The power assembly 530 includes an output shaft 531 and an eccentric wheel 534; a first eccentric shaft neck 532 and a second eccentric shaft neck 533 are arranged on opposite sides of the eccentric wheel 534; the eccentric wheel 534 is provided with a mounting shaft hole penetrating the first eccentric shaft neck 532 and the second eccentric shaft neck 533; the output shaft 531 is installed in the mounting shaft hole, so that the eccentric wheel 534 rotates synchronously with the output shaft 531, so as to drive the first eccentric shaft neck 532 and the second eccentric shaft neck 533 to rotate around the output shaft 531.

[0096] The first transmission assembly 510 includes a first bearing sleeve 511 and a first transmission rod 512. The first bearing sleeve 511 is sleeved on the first eccentric shaft neck 532, and the first bearing sleeve 511 is connected to the transducer 310 through the first transmission rod 512; the second transmission assembly 520 includes a second bearing sleeve 521 and a second transmission rod 522. The second bearing sleeve 521 is sleeved on the second eccentric shaft neck 533, and the second bearing sleeve 521 is connected to the counterweight 400 through the second transmission rod 522. The first bearing sleeve 511 can be connected to the first eccentric shaft neck 532 by means of a bearing, and the second bearing sleeve 521 can be connected to the second eccentric shaft neck 533 by means of a bearing. The power assembly 530 can utilize a driving motor, a driving motor (such as a pneumatic motor) and other driving devices to drive the output shaft 531 to rotate. The first eccentric shaft neck 532 and the second eccentric shaft neck 533 can drive the first bearing sleeve 511 and the second bearing sleeve 521 to rotate eccentrically when rotating, so as to drive the first transmission rod 512 and the second transmission rod 522 to move back and forth, and correspondingly drive the cutting mechanism 300 and the counterweight block 400 to move back and forth in the first direction, so as to achieve the purpose of using an output shaft 531 to drive the cutting mechanism 300 and the counterweight block 400 to move back and forth at the same time.

[0097] Furthermore, in order to ensure that the counterweight 400 and the cutting mechanism 300 move in opposite directions, refer to Figures 6 to 9 In some embodiments of the present invention, on the same radial cross-sectional plane of the output shaft 531, the projection of the first eccentric journal 532 on the cross-sectional plane and the projection of the second eccentric journal 533 on the cross-sectional plane are symmetrical about the rotation center of the output shaft 531. That is, the distance between the center of the first eccentric journal 532 and the central axis of the output shaft 531 is equal to the distance between the center of the second eccentric journal 533 and the central axis of the output shaft 531, so that the driving force arms of the first eccentric journal 532 and the second eccentric journal 533 are the same, so as to ensure the force balance of the output shaft 531, so that the rotation of the output shaft 531 is more stable, and it can also ensure that the displacements of the cutting mechanism 300 and the counterweight block 400 are equal, so as to better prevent the ultrasonic cutting device from shaking.

[0098] In some embodiments of the present invention, reference Figure 1 and Figure 2The ultrasonic cutting device further includes: a mounting top plate 110; a mounting boss is provided on the inner side of the housing 100; the mounting top plate 110 is connected to the mounting boss, and there is a mounting space between the housing 100 and the mounting top plate 110, and the eccentric wheel 534 is located at the mounting space; the output shaft 531 passes through the mounting space, one end of the output shaft 531 is rotatably connected to the mounting top plate 110, and the other end of the output shaft 531 is rotatably connected to the housing 100. The mounting top plate 110 and the housing 100 are used to cooperate and fix the two ends of the output shaft 531, so that the first eccentric shaft neck 532 and the second eccentric shaft neck 533 are located at the mounting space, so as to ensure that the output shaft 531 can better rotate coaxially in the housing 100, avoid radial deviation, and drive the first eccentric shaft neck 532 and the second eccentric shaft neck 533 to rotate, and ensure the rigidity of the end of the output shaft 531 facing the top plate side, so as to avoid swinging during rotation. The mounting boss and the mounting top plate 110 are fixed by screws. Therefore, when installing the first transmission component 510 and the second transmission component 520, the mounting top plate 110 can be removed from the outer shell 100. After the first transmission component 510, the second transmission component 520 and the power component 530 are assembled, the mounting top plate 110 is installed on the outer shell 100 to facilitate the installation of the components of the driving mechanism 500.

[0099] In some embodiments of the present invention, reference Figure 2 , Figure 6 and Figure 7 In order to make the output shaft 531 rotate more smoothly and prevent the output shaft 531 from swinging due to uneven force, mounting bearings 120 are sleeved at both ends of the output shaft 531, and the output shaft 531 is rotatably connected to the mounting top plate 110 and the housing 100 respectively through the two mounting bearings 120. The two mounting bearings 120 are located at both ends of the output shaft 531 to better ensure the smooth rotation of the output shaft 531, reduce the swing of the output shaft 531 when rotating, and ensure that the output shaft 531 better drives the cutting mechanism 300 and the counterweight block 400 to reciprocate through the first eccentric journal 532 and the second eccentric journal 533.

[0100] In some embodiments of the present invention, reference Figures 6 to 9The first bearing sleeve 511 is provided with a first mounting surface 513; the first mounting surface 513 is connected to the first transmission rod 512; the second bearing sleeve 521 is provided with a second mounting surface 523, and the second mounting surface 523 is connected to the second transmission rod 522; wherein, the first mounting surface 513 is parallel to the rotation axis of the first bearing sleeve 511; the second mounting surface 523 is parallel to the rotation axis of the second bearing sleeve 521. That is, the plane where the connection point between the first transmission rod 512 and the first bearing sleeve 511 is located is parallel to the rotation axis of the first bearing sleeve 511, and the force transmitted to the first bearing sleeve 511 by the first transmission rod 512 is perpendicular to the rotation axis of the first bearing sleeve 511, thereby preventing the first bearing sleeve 511 from shaking; similarly, the plane where the connection point between the second transmission rod 522 and the second bearing sleeve 521 is located is parallel to the rotation axis of the second bearing sleeve 521, and the force transmitted to the second bearing sleeve 521 by the second transmission rod 522 is perpendicular to the rotation axis of the second bearing sleeve 521, thereby preventing the second bearing sleeve 521 from shaking; in this embodiment, the rotation axis of the first bearing sleeve 511, the rotation axis of the second bearing sleeve 521, and the axis of the output shaft 531 are all parallel, so as to reduce the shaking of the output shaft 531, the first transmission assembly 510, and the second transmission assembly 520, thereby ensuring the normal operation of the ultrasonic cutting device.

[0101] In some embodiments of the present invention, reference Figure 8 The housing 100 is provided with a guide rail 130 whose length direction is parallel to the first direction; the counterweight 400 is slidably connected to the guide rail 130. The counterweight 400 can be provided with a slide groove or a slide hole and slidably connected to the guide rail 130, so that the counterweight 400 can reciprocate along the first direction. The guide rail 130 can be installed on the housing 100 by a connecting member such as a screw or a pin.

[0102] In some embodiments of the present invention, the housing 100 is provided with a first mounting hole and a guide rail mounting hole, one end of the guide rail 130 is installed in the guide rail mounting hole, and is fixed to the housing 100 by a fixing member passing through the first mounting hole. The counterweight 400 is provided with a sliding hole or a sliding groove opposite to the guide rail mounting hole, and the other end of the guide rail 130 extends into the sliding hole or the sliding groove. That is, when the guide rail 130 is installed, it can extend into the housing through the guide rail mounting hole and be correspondingly inserted into the sliding hole or the sliding groove on the counterweight 400, and then the guide rail 130 is fixed to the housing 100 by a fixing member, so as to achieve the purpose of sliding connection between the counterweight 400 and the housing 100, and ensure that the counterweight 400 can slide back and forth in the housing 100.

[0103] In some embodiments of the present invention, reference Figure 8The counterweight 400 is provided with a mounting position 410, and the second transmission rod 522 is connected to the mounting position 410. The mounting position 410 may be a boss or a groove, and is used to connect with one end of the second transmission rod 522 away from the second bearing sleeve 521. Optimally, the second transmission rod 522 is connected to the mounting position 410 by screws. That is, a threaded hole may be provided in the mounting position 410, and the second transmission rod 522 may be fixedly connected to the mounting position 410 by screws to ensure that the second transmission rod 522 can transmit power to the counterweight 400.

[0104] In some embodiments of the present invention, reference Figure 1 The housing 100 is provided with a first assembly hole 140, the first assembly hole 140 corresponds to the installation position 410, and a detachable first sealing plug 141 is provided in the first assembly hole 140. The first sealing plug 141 is used to seal the housing 100 so as to seal the housing 100 and prevent dust and impurities from entering the housing 100. The first assembly hole 140 is used to facilitate the insertion of an installation tool so as to use the installation tool to install the second transmission rod 522 at the installation position 410, thereby achieving the purpose of installing the counterweight 400 and the second transmission rod 522.

[0105] In some embodiments of the present invention, reference Figure 2 The first bearing sleeve 511 is rotatably connected to the first transmission rod 512, the connection between the transducer 310 and the amplitude transformer 320 is located at the first vibration node position, and the end of the first transmission rod 512 away from the first bearing sleeve 511 is connected to the transducer 310 at the first vibration node position. The vibration node position is the position with the smallest amplitude but the largest stress in the cutting mechanism 300, so the first transmission rod 512 is connected here to ensure a stable connection, so as to better drive the cutting mechanism 300 to reciprocate.

[0106] In some embodiments of the present invention, reference Figures 9 to 11The first transmission rod 512 includes a fixed block 514, a rotating shaft 515, a clamping block 516, and a pull rod 517; the fixed block 514 is fixed on the first bearing sleeve 511, and a limited end and a connecting end are respectively provided at both ends of the rotating shaft 515; the limited end of the rotating shaft 515 is arranged in the fixed block 514, and the limited end of the rotating shaft 515 is rotatably connected to the fixed block 514; the connecting end of the rotating shaft 515 is connected to the clamping block 516; one end of the pull rod 517 is connected to the clamping block 516, and the other end of the pull rod 517 is connected to the transducer 310 at the first vibration node position; the pull rod 517 and the rotating shaft 515 are arranged in sequence along the first direction, and the rotating shaft 515 is located on the side of the pull rod 517 away from the transducer 310. The rotating shaft 515 can rotate relative to the fixed block 514, and the pull rod 517, the transducer 310, the amplitude rod 320, and the blade 330 can rotate around the rotating shaft 515 to adjust the cutting angle of the blade 330. The limiting end of the rotating shaft 515 is provided with an annular protrusion protruding outward in the radial direction, and the fixed block 514 is provided with a stepped hole adapted to the shape of the limiting section. The limiting end of the rotating shaft 515 is located in the stepped hole, and the fixed block 514 sleeves the limiting end and fixes it on the first bearing sleeve 511 to realize the rotation connection between the rotating shaft 515 and the first bearing sleeve 511. The clamping block 516 fixes the rotating shaft 515 and the pull rod 517 so that the first bearing sleeve 511 transmits power to the cutting mechanism 300.

[0107] In some embodiments of the present invention, reference Figures 9 to 11 The clamping block 516 includes a fixed plate 5161, a first clamping plate 5162, and a second clamping plate 5163; the fixed plate 5161 is provided with a first mounting clamping groove 5164 and a second mounting clamping groove 5165; the connecting end of the rotating shaft 515 is located in the first mounting clamping groove 5164, and the end of the pull rod 517 connected to the clamping block 516 is located in the second mounting clamping groove 5165, the first clamping plate 5162 is connected to the fixed plate 5161 and the first clamping plate 5162 is used to cooperate with the fixed plate 5161 to fix the connecting end of the rotating shaft 515 in the first mounting clamping groove 5164; the second clamping plate 5163 is connected to the fixed plate 5161, and the second clamping plate 5163 is used to cooperate with the fixed plate 5161 to fix one end of the pull rod 517 in the second mounting clamping groove 5165, and this end of the pull rod 517 is the end connected to the clamping block 516. That is, the clamping plate uses the first clamping plate 5162 and the second clamping plate 5163 to cooperate with the clamping rod 517 and the rotating shaft 515 to connect the rotating shaft 515 and the pull rod 517, so that the rotating shaft 515 can transmit power to the pull rod 517, thereby achieving the purpose of connecting the first bearing sleeve 511 to the cutting mechanism 300 through the first transmission rod 512.

[0108] In some embodiments of the present invention, reference Figures 9 to 11The first installation clamping groove 5164 includes a receiving area 5166 and a limiting area 5167, wherein the receiving area 5166 is located on the side of the limiting area 5167 away from the first bearing sleeve 511; the connecting end of the rotating shaft 515 is provided with a clamping joint 5151, which is located in the receiving area 5166, and the outer diameter of the clamping joint 5151 is greater than the width of the limiting area 5167; therefore, the clamping joint 5151 of the rotating shaft 515 will be clamped in the first installation clamping groove 5164, so that the rotating shaft 515 can transmit the force along the axial direction of the rotating shaft 515 to prevent the rotating shaft 515 from being separated from the clamping block 516. Similarly, the limiting end of the rotating shaft 515 can also transmit the force along the axial direction of the rotating shaft 515 to prevent the rotating shaft 515 from being separated from the clamping block 516, so that the first bearing sleeve 511 pushes and pulls back the cutting mechanism 300, so that the cutting mechanism 300 reciprocates in the first direction. In order to increase the clamping force, the groove surface of the second installation clamping groove 5165 is provided with a plurality of radially recessed first clamping grooves 5168 facing the pull rod 517, and the protrusion between two adjacent first clamping grooves 5168 forms clamping teeth. The clamping teeth can increase the friction between the second installation clamping groove 5165 and the pull rod 517, so as to increase the clamping force of the second clamping plate 5163 and the fixing plate 5161 to clamp the pull rod 517, so as to better clamp the pull rod 517, prevent the pull rod 517 from loosening from the clamping block 516, and ensure that the pull rod 517 is connected to the rotating shaft 515 through the clamping block 516.

[0109] It is understandable that the first clamping plate 5162 can be connected to the fixed plate 5161 by fasteners such as screws and bolts, and the second clamping plate 5163 can also be connected to the fixed plate 5161 by fasteners such as screws and bolts, so as to achieve the purpose of clamping the rotating shaft 515 and the pull rod 517.

[0110] In addition, in other embodiments of the present invention, referring to Fig.12The fixing block 514 is provided with a second mounting hole 5141, and the second mounting hole 5141 is communicated with the first mounting clamping groove 5164. A positioning groove 5152 is provided at a position of the rotating shaft 515 corresponding to the second mounting hole 5141; the rotating shaft 515 is fixed in the first mounting clamping groove 5164 by a positioning pin 5142 inserted into the second mounting hole 5141 and the positioning groove 5152; wherein, the extending direction of the second mounting hole 5141 is perpendicular to the first direction, so that the positioning pin 5142 is fixedly connected with the clamping block 516 to prevent the rotating shaft 515 from falling out; one side of the second clamping plate 5163 is integrally connected with the fixing block 514, and the other side of the second clamping plate 5163 is a suspended side and has a first clamping gap 5143 between it and the fixing block 514; the suspended side of the second clamping plate 5163 is connected to the fixing plate 5161 through a threaded connector. That is, the second clamping plate 5163 is a movable clamping arm, and the distance between the suspended side and the fixed block 514 is reduced by the threaded connector, that is, the first clamping gap 5143 is reduced to increase the pressure of the second clamping plate 5163 on the pull rod 517 in the second mounting groove 385, so as to increase the clamping force of the second clamping plate 5163 and the fixed plate 5161 on the pull rod 517, so as to fix the pull rod 517 and the clamping block 516. The threaded connector can be a connector with external threads such as a screw or a bolt.

[0111] In some embodiments of the present invention, the pull rod 517 and the second transmission rod 522 are both made of carbon fiber rods. The carbon fiber rod is a transmission rod with a certain toughness. The first eccentric journal 532, the first bearing sleeve 511, the rotating shaft 515, the clamping block 516, the pull rod 517, and the cutting mechanism 300 form a crank connecting rod mechanism. Since one end of the pull rod 517 is fixedly connected to the first vibration node position of the transducer, and the cutting mechanism 300 can only move in the first direction, therefore, the pull rod 517 is made of a carbon fiber rod with a certain toughness. When the first eccentric journal 532 is rotating, the end of the pull rod 517 connected to the clamping block 516 can swing radially to overcome the radial movement deviation of the cutting mechanism 300, ensuring that the cutting mechanism 300 can reciprocate along the first direction. Similarly, the second eccentric shaft neck 533, the second bearing sleeve 521, the second transmission rod 522, and the counterweight 400 form a crank-connecting rod mechanism, and the end of the second transmission rod 522 connected to the second bearing sleeve 521 can also overcome the radial movement deviation of the counterweight 400 through radial swing, ensuring that the counterweight 400 can move back and forth along the first direction.

[0112] In some embodiments of the present invention, the pull rod 517 and the second transmission rod 522 are both made of rigid material, the clamping block 516 is connected to the pull rod 517 through the first rocker, and the second bearing sleeve 521 is connected to the second transmission rod 522 through the second rocker. Since the pull rod 517 and the second transmission rod 522 are both made of rigid material, the clamping block 516 overcomes the radial motion deviation of the cutting mechanism 300 through the radial swing of the first rocker, ensuring that the cutting mechanism 300 can reciprocate along the first direction. Similarly, the second bearing sleeve 521 overcomes the radial motion deviation of the counterweight block 400 through the radial swing of the second rocker, ensuring that the counterweight block 400 can reciprocate along the first direction.

[0113] In some embodiments of the present invention, reference Figure 3 , Fig.13 , Fig.14 , and also includes a clamping member 700 with external threads; the transducer 310 includes a mounting rod 311, the mounting rod 311 is connected to the amplitude rod 320, and a first mounting through hole 312 is provided in the mounting rod 311 and penetrates along the first direction; the inner wall of the first mounting through hole 312 has an internal thread 313, and the clamping member 700 is sleeved on the end of the pull rod 517 away from the clamp block 516, and the external thread of the clamping member 700 is threadedly matched with the internal thread 313 to realize the threaded connection between the clamping member 700 and the mounting rod 311. The clamping member 700 clamps the end of the pull rod 517 away from the clamp block 516 to ensure that the pull rod 517 can be connected to the mounting rod 311 through the clamping member 700, the internal thread 313 is set at the first vibration node position, and the ultrasonic vibration amplitude in the area of ​​the internal thread 313 is less than or equal to one tenth of the maximum ultrasonic amplitude of the transducer 310. The threaded connection between the internal thread 313 and the external thread of the clamp 700 ensures that the pull rod 517 can transmit power to the amplitude transformer 320 and the transducer 310. The first vibration node position and the vibration node position where the aforementioned limiting collar is located are the same vibration node position.

[0114] In some embodiments of the present invention, reference Figure 3 , Fig.13 , Fig.14 The clamping member 700 is provided with a clamping hole 710 for clamping the pull rod 517, and the clamping member 700 is provided with a second slit 720 communicating with the clamping hole 710, and the length direction of the second slit 720 is parallel to the first direction. When the external thread of the clamping member 700 is matched and connected with the internal thread 313 of the first mounting through hole 312, the second slit 720 is narrowed by the internal thread 313 to increase the clamping force of the clamping member 700 on the pull rod 517, so that the pull rod 517 is better connected to the mounting rod 311 through the clamping member 700, ensuring a stable connection.

[0115] On the basis of the above, refer to Figure 3 , Fig.13, Fig.14 , the number of the second slits 720 is at least two, and the at least two second slits 720 are evenly distributed around the axis of the clamping member 700. The number of the second slits 720 is at least two, that is, the clamping hole 710 section of the clamping member 700 is divided into at least two clamping arms, and the two clamping arms can be used to better clamp the pull rod 517, making the connection more stable. The at least two second slits 720 are evenly distributed around the axis of the clamping member 700, so that the force on the clamping arm is more uniform, avoiding stress concentration at the clamping member 700 and the clamping arm being easily broken.

[0116] In some embodiments of the present invention, reference Figure 2 , Fig.13 , Fig.14 The inside of the clamping hole 710 is provided with a plurality of second clamping grooves 730 which are radially recessed toward the pull rod 517, and the plurality of second clamping grooves 730 are evenly spaced along the axial direction of the pull rod 517. The protruding clamping portion between two adjacent second clamping grooves 730 clamps the pull rod, and the clamping portion can increase the friction between the hole wall of the clamping hole 710 and the pull rod 517, so as to increase the clamping force of the clamping member 700 on the pull rod 517, so as to better clamp the pull rod 517, prevent the pull rod 517 from being loosened from the clamping member 700, and ensure that the pull rod 517 is connected to the mounting rod 311 through the clamping member 700.

[0117] In some embodiments of the present invention, reference Figure 2 , Fig.13 , Fig.14 The clamping hole 710 is in a flared shape, and the diameter of the end of the clamping hole 710 facing the clamping block 516 is larger than the diameter of the end of the clamping hole 710 away from the clamping block 516. That is, the diameter of the clamping hole 710 gradually decreases from the end facing the clamping block 516 to the end away from the clamping block 516, which can facilitate the pull rod 517 to extend into the clamping hole 710 for clamping, and can also better allow the pull rod 517 to contact the hole wall of the clamping hole 710, thereby increasing the clamping force and ensuring that the pull rod 517 is firmly connected to the clamping member 700.

[0118] In some embodiments of the present invention, reference Figure 2, the horn 320 is provided with a second mounting through hole 321, which penetrates the horn 320 along the first direction and corresponds to the first mounting through hole 312, and the maximum outer diameter of the clamp 700 is smaller than the minimum inner diameter of the second mounting through hole 321; the end of the clamp 700 away from the clamp block 516 is provided with a second assembly hole 740 recessed along the first direction. The second assembly hole 740 is used to facilitate the installation tool to drive the clamp 700 to rotate, and the second mounting through hole 321 facilitates the clamp 700 to extend into the first mounting through hole 312, so that the clamp 700 is sleeved on the outside of the pull rod 517; after the clamp 700 is sleeved on the outside of the pull rod 517, the clamp 700 is rotated by the installation tool so that the clamp 700 cooperates with the internal thread 313 of the first mounting through hole 312 to clamp the pull rod 517, and the connection and fixation of the pull rod 517 and the mounting rod 311 can be completed, ensuring a stable connection.

[0119] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.18 The horn 320 includes a primary rod body 322, a secondary rod body 323, and a connecting column 324; the primary rod body 322 and the secondary rod body 323 are sequentially distributed along the first direction, the primary rod body 322 is connected to the transducer 310, and the secondary rod body 323 is connected to the primary rod body 322 through the connecting column 324; the first support ring 350 is sleeved on one end of the primary rod body 322 away from the secondary rod body 323, and a second support ring 360 is sleeved between one end of the secondary rod body 323 away from the primary rod body 322 and the sleeve 200, the outer side surface of the second support ring 360 is in contact with the sleeve 200, and the inner side surface of the second support ring 360 is in contact with the secondary rod body 323, and the second support ring 360 is located at the second vibration node position on the horn 320. The second vibration node position is different from the first vibration node position, and the first vibration node position is located inside the housing 100, and the second vibration node position is located outside the housing 100. That is, the primary rod body 322 and the secondary rod body 323 are connected by the connecting column 324, and the first support ring 350 and the second support ring 360 are used to support the two ends of the amplitude transformer 320 respectively, so as to better control the radial displacement of the amplitude transformer 320 and prevent the amplitude transformer 320 from radial movement.

[0120] In some embodiments of the present invention, reference Figure 5 , Fig.18The ultrasonic cutting device further includes a second abutting ring 240; the sleeve 200 is provided with a second mounting step 284; the second supporting ring 360 is located between the second mounting step 284 and the second abutting ring 240, the second abutting ring 240 is threadedly connected to the sleeve 200, and the second abutting ring 240 is used to press the second abutting ring 240 toward the second mounting step 284. That is, the second abutting ring 240 threadedly connected to the sleeve 200 is used to fix the second supporting ring 360 to prevent the second abutting ring 240 from falling during the reciprocating movement of the cutting mechanism 300, and ensure that the second abutting ring 240 and the first abutting ring 220 cooperate to support the horn 320 to prevent the horn 320 from moving radially.

[0121] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.18 The second support ring 360 is provided with a positioning hole, the secondary rod body 323 is provided with a positioning slot 326 corresponding to the positioning hole, the positioning slot 326 extends along the first direction, and the sleeve 200 is provided with a positioning pin 250 for inserting into the positioning hole and the positioning slot 326. The positioning pin 250 can make the sleeve 200, the second support ring 360, and the amplitude change rod 320 rotate synchronously, so as to change the cutting angle of the blade 330 by controlling the angle of the sleeve 200, and conveniently change the cutting angle of the blade 330. The positioning slot 326 extends along the first direction, which can ensure that the amplitude change rod 320 can reciprocate along the first direction, ensure that the cutting mechanism 300 can move back and forth along the first direction, and prevent the sleeve 200 from moving back and forth along the first direction with the cutting mechanism 300.

[0122] In some embodiments of the present invention, reference Figure 4 , Fig.15 The limiting member 230 is a limiting ring, the inner side of the limiting ring is fitted with the first support ring 350, and the inner side of the limiting ring is provided with a first oil guide groove 231, and the limiting ring and the sleeve 200 are both provided with a first oil injection hole connected with the first oil guide groove 231. That is, the limiting ring covers the first support ring 350, and the first support ring 350 closes the first oil guide groove 231. The first oil guide groove 231 is used to carry lubricating oil, and provide sufficient lubrication for the reciprocating motion of the cutting mechanism 300 in the first direction, so that the reciprocating motion of the cutting mechanism 300 in the first direction is smoother. The first oil injection hole is used to inject lubricating oil into the first oil guide groove 231, so as to lubricate the contact surface between the first support ring 350 and the limiting ring, so that the reciprocating motion of the cutting mechanism 300 in the first direction is smoother.

[0123] In some embodiments of the present invention, reference Figure 5 , Fig.16The inner side of the second support ring 360 is provided with a second oil guide groove 361, and the sleeve 200 and the second support ring 360 are both provided with a second oil injection hole connected with the second oil guide groove 361. The second oil injection hole is used to inject lubricating oil into the second oil guide groove 361, so as to lubricate the gap between the second support ring 360 and the secondary rod body 323, and lubricate the contact surface between the second support ring 360 and the secondary rod body 323, so that the reciprocating motion of the cutting mechanism 300 in the first direction is smoother.

[0124] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.17 The sleeve 200 includes a horn support section 260, a shell connection section 270, and a machine tool connection section 280 arranged in sequence along a first direction; the arrangement direction of the horn support section 260, the shell connection section 270, and the machine tool connection section 280 is consistent with the arrangement direction of the transducer 310, the horn 320, and the blade 330, and the blade 330 extends out of the machine tool connection section 280; the diameters of the horn support section 260, the shell connection section 270, and the machine tool connection section 280 gradually decrease; a rotating bearing 271 is sleeved on the outer side of the shell connection section 270, and the shell connection section 270 is rotatably connected to the housing 100 through the rotating bearing 271; A third installation step 261 is provided on the side of the rod support section 260 facing the shell connection section 270, and a pressure cap 272 is provided on the side of the shell connection section 270 away from the connection section of the horn 320. The pressure cap 272 is threadedly connected to the shell connection section 270, and the pressure cap 272 is used to press the rotating bearing 271 toward the third installation step 261; the housing 100 is provided with an end cap 150 for covering the outer edge of the rotating bearing 271, and the shell connection section 270 and the horn support section 260 are installed on the inner side of the shell 100 by using the end cap 150 and the pressure cap 272, so that only the machine tool connection section 280 protrudes from the shell 100 to ensure a stable connection. By providing the rotating bearing 271, the rotation of the sleeve 200 can be made more stable. The outer diameter of the machine tool connection section 280 is smaller than that of the shell connection section 270 and the horn support section 260, so as to reduce the volume of the sleeve 200 protruding from the shell 100 and facilitate the installation with the machine tool.

[0125] It should be added that the number of the rotating bearings 271 can be determined according to the contact range between the sleeve 200 and the housing 100. In some preferred embodiments, the number of the rotating bearings 271 can be two, and the two rotating bearings 271 are distributed at both ends of the shell connecting section 270 to better support the entire sleeve 200, and a limiting plate or a limiting ring is placed between the two rotating bearings 271 to ensure that the two rotating bearings 271 will not move at will, ensure that the sleeve 200 and the housing 100 can be rotatably connected, and ensure that the sleeve 200 is installed more firmly. In addition, the number of the rotating bearings 271 can be a natural number such as 1 or 3, and the specific number can be configured according to actual conditions.

[0126] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.17 , a plurality of convex steps 281 are arranged on the outer side of the machine tool connecting section 280, and the plurality of convex steps 281 are arranged in sequence along the first direction, and the closer the convex step 281 is to the blade 330, the smaller the outer diameter is, and the multi-level step matching and positioning with the machine tool is used to ensure the connection accuracy between the machine tool connecting sections 280; each convex step 281 is provided with an air groove 282; wherein, the air groove 282 located in the middle of the machine tool connecting section 280 is provided with an air hole 283 connected to the inner wall of the sleeve 200, and the air groove 282 of the convex step 281 farthest from the shell connecting section 270 extends to the end face of the machine tool connecting section 280 away from the shell connecting section 270; an air through hole 370 is provided at the end of the amplitude rod 320 facing the transducer 310; the inner cavity of the sleeve 200 is connected with the air through hole 370 and the air through hole 283. That is, the cooling gas can flow through the air through hole 370, the inner cavity of the sleeve 200, the air hole 283, and the air groove 282, and be output from the end of the machine tool connection section 280 away from the shell connection section 270 to cool the amplitude rod 320 and the sleeve 200, ensuring that the temperature of the sleeve 200 and the amplitude rod 320 is at a normal working temperature. It should be noted that since the outer convex step 281 is closely connected to the machine tool, the air groove 282 is set at the outer convex step 281 to ensure that the cooling gas can be transported from the outer convex step 281 to the gap between the machine tool and the sleeve 200 to ensure the cooling effect.

[0127] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.17 , the cutting machine can be connected to the ultrasonic cutting device by using the assembly kit 800; the assembly kit 800 is sleeved on the outer side of the machine tool connection section 280; the outer side of the sleeve 200 is provided with a threaded connection hole, and the machine tool connection section is used to connect with the assembly kit 800 of the machine tool through the screws inserted into the threaded connection hole. The assembly kit 800 is sleeved on the outer side of the machine tool connection section 280 and covers the air groove 282, so that the cooling gas can cool the gap between the assembly kit 800 and the sleeve 200 through the air groove 282, so as to avoid the sleeve 200 or the assembly kit 800 from being too high in temperature; and the assembly kit 800 is fixedly connected to the sleeve 200 by screws, so that the assembly kit 800 and the sleeve 200 rotate synchronously, so that the sleeve 200 can be driven to rotate by rotating the assembly kit 800, so as to adjust the cutting direction of the blade 330 of the cutting mechanism 300 in the sleeve 200, and to facilitate the adjustment of the cutting angle of the blade 330.

[0128] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.17The housing 100 is provided with a cooling air passage 160, which is in communication with the air passage 370. The cooling air passage 160 is used to enter the cooling gas, which can be input into the air passage 370 through the cooling air passage 160, and then flow through the inner cavity of the sleeve 200, the air passage 283, and the air passage groove 282, and output from the end of the machine tool connection section 280 away from the shell connection section 270, so as to achieve the purpose of cooling the sleeve 200 and the horn 320. The ultrasonic cutting device also includes at least one fan 900, which is arranged on the housing 100, and the air outlet of the fan 900 is in communication with the cooling air passage 160, and, in order to ensure air pressure balance, the housing 100 is provided with a convection port 170 in communication with the cooling air passage 160 and facing the transducer 310 on the side away from any fan 900, so that the excess wind of the fan 900 can flow out from the convection port 170 to reduce the pressure inside the housing 100. The transducer 310 is directly opposite to the convection port 170 , so that the cooling gas blown into the housing 100 by the fan 900 can cool the transducer 310 , ensuring that the transducer 310 is at a normal operating temperature.

[0129] In some embodiments of the present invention, reference Figures 2 to 5 , Fig.17 The housing 100 is provided with a slip ring cable hole, and the inner side of the housing 100 is provided with an installation slot for accommodating the conductive slip ring 600. The slip ring cable hole is used to allow the cable of the conductive slip ring 600 to pass through so that the conductive slip ring 600 is energized; the shape of the installation slot is adapted to the shape of the conductive slip ring 600 so as to better install the conductive slip ring 600 in the housing 100.

[0130] In some embodiments of the present invention, reference Fig.18 and Fig.19 , and also includes a chuck 380; a third mounting hole 327 is provided at one end of the horn 320 away from the transducer 310, the chuck 380 is located in the third mounting hole 327, and the chuck 380 is provided with a blade mounting portion 381 for mounting a blade 330. The chuck 380 is used to clamp the blade 330 so that the blade 330 is mounted on the horn 320, so that the horn 320 uses the blade 330 to cut the object to be cut. By installing chucks 380 of different specifications, different blades 330 can be adapted to cut a variety of different objects.

[0131] In some embodiments of the present invention, reference Fig.18 and Fig.19The side of the horn 320 is provided with a top screw thread hole 328 connected to the third mounting hole 327; the side of the chuck 380 corresponding to the top screw thread hole 328 is provided with a tapered groove 382, ​​and the top screw thread hole 328 is threadedly connected with a mounting top screw 390, and the mounting top screw 390 is used to press the chuck 380 against the inner wall of the third mounting hole 327. The extension direction of the top screw thread hole 328 is perpendicular to the extension direction of the third mounting hole 327, so that the mounting top screw 390 can be vertically pressed against the chuck 380 in the third mounting hole 327, and the mounting top screw 390 can be better used to clamp the chuck 380 in the third mounting hole 327 to prevent the chuck 380 from being loosened from the horn 320. When the chuck 380 or the blade 330 needs to be replaced, the mounting top screw 390 can be loosened and the chuck 380 can be removed from the third mounting hole 327 to replace the chuck 380 or the blade 330.

[0132] In some embodiments of the present invention, reference Fig.18 and Fig.19 The blade mounting portion 381 includes a first clamp arm 383 and a second clamp arm 384, and a mounting groove 385 for clamping the blade 330 is formed between the first clamp arm 383 and the second clamp arm 384. The blade 330 is inserted into the mounting groove 385. The tapered groove 382 is provided on the first clamp arm 383, and the mounting groove 385 is located on the side of the tapered groove 382 away from the top screw thread hole 328. That is, when the mounting top screw 390 is screwed toward the tapered groove 382 on the first clamp arm 383, the distance between the first clamp arm 383 and the second clamp arm 384 can be gradually reduced, so that the width of the mounting groove 385 is gradually reduced to cooperate with the first clamp arm 383 and the second clamp arm 384 to clamp the blade 330. Then, the mounting top screw 390 can be used to clamp the chuck 380 and the blade 330, so that the chuck 380 and the blade 330 can be installed conveniently and conveniently used.

[0133] In some embodiments of the present invention, reference Fig.18 and Fig.19 The central axis of the tapered groove 382 is located in the middle of the mounting groove 385 , so the pressure applied by the mounting screw 390 can be aligned with the middle of the mounting groove 385 , and the pressure of the mounting screw 390 can be evenly transferred to the blade 330 , so that the chuck 380 can better clamp the blade 330 .

[0134] In some embodiments of the present invention, reference Fig.18 and Fig.19 The first clamp arm 383 is provided with an assembly surface 386 which is perpendicular to the central axis of the tapered groove 382. The assembly surface 386 is perpendicular to the central axis of the tapered groove 382, ​​so that when the top screw 390 is aligned with the tapered groove 382 and screwed, the pressure of the top screw 390 can be applied to the first clamp arm 383, so that the pressure of the top screw 390 can be more evenly applied to the blade 330, so as to better clamp the blade 330.

[0135] This embodiment also provides a machine tool, which includes a driving device, an assembly kit 800 connected to the driving device, and the above-mentioned ultrasonic cutting device. The outer side of the sleeve 200 is provided with a screw installation hole. The sleeve is connected to the assembly kit 800 through a screw inserted into the screw installation hole. The driving device is used to drive the ultrasonic cutting device to move. That is, the driving device drives the ultrasonic cutting device to move through the assembly kit 800, so as to drive the cutter on the ultrasonic cutting device to cut the object to be cut.

[0136] It can be understood that the driving device can be a linear driving device, a multi-axis driving device, or the like, which can drive the ultrasonic cutting device to move in space.

[0137] The ultrasonic cutting device of the machine tool adds ultrasonic components such as a transducer 310 and an amplitude transformer 320, thereby adding ultrasonic high-frequency axial vibration to the cutting tool on the basis of the original low-frequency axial reciprocating motion, thereby improving the cutting speed and cutting ability, and being able to efficiently cut thicker leather, non-woven fabrics and other soft sheets; at the same time, the driving mechanism 500 is used to drive the cutting mechanism 300 and the counterweight block 400 to move in opposite directions in the first direction at the same time, which not only enables the cutting mechanism 300 to reciprocate in the first direction and enables the blade 330 to reciprocate on the object to be cut, but also the reverse movement of the counterweight block 400 can balance the inertial jitter generated by the cutting machine during the reciprocating motion, so that the ultrasonic cutting device can achieve anti-shake, and the cutting machine tool can cut the object more smoothly.

[0138] In summary, the ultrasonic cutting device and machine tool of this embodiment utilize the driving mechanism 500 to drive the cutting mechanism 300 and the counterweight block 400 to move in opposite directions in the first direction at the same time, which can not only make the cutting mechanism 300 of the ultrasonic cutting device move back and forth in the first direction, but also perform ultrasonic high-frequency axial vibration cutting to improve the cutting ability of the ultrasonic cutting device and increase the cutting speed of the ultrasonic cutting device; and the movement of the counterweight block 400 can balance the inertial jitter generated by the cutting mechanism 300 during reciprocating motion, so that the ultrasonic cutting device can achieve anti-shake, and the tool of the cutting mechanism 300 can cut the object more smoothly.

[0139] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic cutting device, characterized in that: include: A housing, a sleeve, a cutting mechanism, a counterweight, a driving mechanism, and a conductive slip ring; the sleeve is rotatably connected to the housing; the driving mechanism is used to drive the cutting mechanism to reciprocate along a first direction; the cutting mechanism comprises a transducer, a horn, and a blade connected in sequence along the first direction; the sleeve is sleeved on the outside of the horn, and the sleeve and the horn rotate coaxially; the counterweight is located in the housing and movably connected to the housing; the conductive slip ring is arranged in the housing, and the conductive slip ring is located on the outside of the transducer, and the conductive slip ring is electrically connected to the transducer; The driving mechanism includes a first transmission assembly, a second transmission assembly, and a power assembly; the first transmission assembly is connected to the cutting mechanism; the second transmission assembly is connected to the counterweight block; the power assembly is connected to the first transmission assembly and the second transmission assembly; the power assembly drives the cutting mechanism and the counterweight block to reciprocate along the first direction through the first transmission assembly and the second transmission assembly, and the moving direction of the counterweight block is opposite to the moving direction of the cutting mechanism.

2. The ultrasonic cutting device according to claim 1, characterized in that: A limiting ring is sleeved on one end of the amplitude changing rod facing the transducer, the inner side wall of the limiting ring is in contact with the amplitude changing rod, the outer side wall of the limiting ring is in contact with the shell, and the limiting ring is located at a vibration node position.

3. The ultrasonic cutting device according to claim 1, characterized in that: The power assembly comprises an output shaft and an eccentric wheel, wherein the eccentric wheel is provided with a first eccentric shaft neck and a second eccentric shaft neck on opposite sides, and the eccentric wheel is provided with a mounting shaft hole penetrating the first eccentric shaft neck and the second eccentric shaft neck; the output shaft is installed in the mounting shaft hole, so that the eccentric wheel rotates synchronously with the output shaft; The first transmission assembly includes a first bearing sleeve and a first transmission rod, the first bearing sleeve is arranged on the first eccentric journal, and the first bearing sleeve is connected to the transducer through the first transmission rod; The second transmission assembly includes a second bearing sleeve and a second transmission rod. The second bearing sleeve is mounted on the second eccentric journal. The second bearing sleeve is connected to the counterweight block through the second transmission rod.

4. The ultrasonic cutting device according to claim 3, characterized in that: On the same radial cross-sectional plane of the output shaft, a projection of the first eccentric journal on the cross-sectional plane and a projection of the second eccentric journal on the cross-sectional plane are symmetrical about the rotation center of the output shaft.

5. The ultrasonic cutting device according to claim 3, characterized in that: Also includes: A mounting top plate is installed; a mounting boss is arranged on the inner side of the outer shell; the mounting top plate is connected to the mounting boss, a mounting space is provided between the outer shell and the mounting top plate, and the eccentric wheel is located at the mounting space; the output shaft passes through the mounting space, one end of the output shaft is rotatably connected to the mounting top plate, and the other end of the output shaft is rotatably connected to the outer shell.

6. The ultrasonic cutting device according to claim 5, characterized in that: Both ends of the output shaft are sleeved with mounting bearings, and the output shaft is rotatably connected to the mounting top plate and the housing respectively through the two mounting bearings.

7. The ultrasonic cutting device according to claim 3, characterized in that: The first bearing sleeve is provided with a first mounting surface; the first mounting surface is connected to the first transmission rod; The second bearing sleeve is provided with a second mounting surface, and the second mounting surface is connected to the second transmission rod; Wherein, the first mounting surface is parallel to the rotation axis of the first bearing sleeve; the second mounting surface is parallel to the rotation axis of the second bearing sleeve.

8. The ultrasonic cutting device according to claim 1, characterized in that: The shell is provided with a guide rail whose length direction is parallel to the first direction; the counterweight block is slidably connected to the guide rail.

9. The ultrasonic cutting device according to claim 8, characterized in that: The outer shell is provided with a guide rail mounting hole and a first mounting hole, one end of the guide rail is installed in the guide rail mounting hole and is fixed to the outer shell by a fixing member passing through the first mounting hole, and the counterweight block is provided with a sliding hole or a sliding groove opposite to the guide rail mounting hole, and the other end of the guide rail extends into the sliding hole or the sliding groove.

10. The ultrasonic cutting device according to claim 7, characterized in that: The counterweight block is provided with a mounting position, and the second transmission rod is connected to the mounting position.

11. The ultrasonic cutting device according to claim 10, characterized in that: The housing is provided with a first assembly hole, the first assembly hole corresponds to the installation position, and a detachable first sealing plug is provided in the first assembly hole.

12. The ultrasonic cutting device according to claim 3, characterized in that: The first bearing sleeve is rotatably connected to the first transmission rod, the connection between the transducer and the amplitude transformer is located at a first vibration node, and one end of the first transmission rod away from the first bearing sleeve is connected to the transducer at the first vibration node.

13. The ultrasonic cutting device according to claim 12, characterized in that: The first transmission rod includes a fixed block, a rotating shaft, a clamping block, and a pull rod; the fixed block is fixed on the first bearing sleeve, and a limited end and a connecting end are respectively provided at both ends of the rotating shaft; the limited end of the rotating shaft is arranged in the fixed block, and the limited end of the rotating shaft is rotatably connected to the fixed block; the connecting end of the rotating shaft is connected to the clamping block; one end of the pull rod is connected to the clamping block, and the other end of the pull rod is connected to the transducer at the first vibration node position; the pull rod and the rotating shaft are arranged in sequence along the first direction, and the rotating shaft is located on the side of the pull rod away from the transducer.

14. The ultrasonic cutting device according to claim 13, characterized in that: The clamping block includes a fixed plate, a first clamping plate, and a second clamping plate; the fixed plate is provided with a first mounting clamping groove and a second mounting clamping groove; the connecting end of the rotating shaft is located in the first mounting clamping groove, and the end of the pull rod connected to the clamping block is located in the second mounting clamping groove, the first clamping plate is connected to the fixed plate and the first clamping plate is used to cooperate with the fixed plate to fix the connecting end of the rotating shaft in the first mounting clamping groove; the second clamping plate is connected to the fixed plate and the second clamping plate is used to cooperate with the fixed plate to fix the end of the pull rod connected to the clamping block in the second mounting clamping groove.

15. The ultrasonic cutting device according to claim 14, characterized in that: The first mounting clamp groove includes a accommodating area and a limiting area, the accommodating area is located on the side of the limiting area away from the first bearing sleeve; the connecting end of the rotating shaft is provided with a clamping joint, the clamping joint is located in the accommodating area, and the outer diameter of the clamping joint is larger than the width of the limiting area; the groove surface of the second mounting clamp groove is provided with a plurality of radially recessed first clamping grooves toward the pull rod.

16. The ultrasonic cutting device according to claim 14, characterized in that: The fixing block is provided with a second mounting hole, the second mounting hole is communicated with the first mounting clip groove, and the position of the rotating shaft corresponding to the second mounting hole is provided with a positioning groove; the rotating shaft is fixed in the first mounting clip groove by a positioning pin inserted into the second mounting hole and the positioning groove; One side of the second clamping plate is connected to the fixing block, and the other side of the second clamping plate is a suspended side with a first gap between the second clamping plate and the fixing block; the suspended side of the second clamping plate is connected to the fixing plate via a threaded connector.

17. The ultrasonic cutting device according to claim 13, characterized in that: The pull rod and the second transmission rod are both made of carbon fiber rods.

18. The ultrasonic cutting device according to claim 13, characterized in that: The pull rod and the second transmission rod are both made of rigid material, the clamping block is connected to the pull rod via a first rocker, and the second bearing sleeve is connected to the second transmission rod via a second rocker.

19. The ultrasonic cutting device according to claim 13, characterized in that: It also includes a clamping member with an external thread; the transducer includes a mounting rod, the mounting rod is connected to the amplitude changing rod, and a first mounting through hole is provided in the mounting rod and penetrates along the first direction; the inner wall of the first mounting through hole has an internal thread, the clamping member is sleeved on one end of the pull rod away from the clamping block, and the external thread of the clamping member is threadedly connected to the internal thread.

20. The ultrasonic cutting device according to claim 19, characterized in that: The clamping member is provided with a clamping hole for clamping the pull rod, and the clamping member is provided with a second clamping slit communicated with the clamping hole, and the length direction of the second clamping slit is parallel to the first direction.

21. The ultrasonic cutting device according to claim 20, characterized in that: The number of the second slits is at least two, and the at least two second slits are evenly distributed around the axis of the clamping member.

22. The ultrasonic cutting device according to claim 20, characterized in that: The interior of the clamping hole is provided with a plurality of second clamping grooves which are radially recessed toward the pull rod, and the plurality of second clamping grooves are evenly spaced along the axial direction of the pull rod.

23. The ultrasonic cutting device according to claim 20, characterized in that: The clamping hole is in a flared shape, and the diameter of one end of the clamping hole facing the clamping block is larger than the diameter of one end of the clamping hole facing away from the clamping block.

24. The ultrasonic cutting device according to claim 20, characterized in that: The amplitude transformer is provided with a second mounting through hole, which passes through the amplitude transformer along the first direction and corresponds to the first mounting through hole, and the maximum outer diameter of the clamping member is smaller than the minimum inner diameter of the second mounting through hole; and a second assembly hole recessed along the first direction is provided at one end of the clamping member away from the clamping block.

25. The ultrasonic cutting device according to claim 2, characterized in that: Also includes: A first clamping ring; the limiting ring includes a first supporting ring and a limiting piece; the first supporting ring is sleeved on one end of the amplitude changing rod facing the transducer, the first supporting ring is located between the amplitude changing rod and the sleeve, the limiting piece is located between the first supporting ring and the sleeve, and the sleeve is provided with a first mounting step; the limiting piece is located between the first mounting step and the first clamping ring; the first clamping ring is threadedly connected to the sleeve, and the first clamping ring is used to press the limiting piece toward the first mounting step.

26. The ultrasonic cutting device according to claim 25, characterized in that: The amplitude transformer comprises a primary rod body, a secondary rod body, and a connecting column; the primary rod body and the secondary rod body are sequentially distributed along the first direction, the primary rod body is connected to the transducer, and the secondary rod body is connected via the connecting column; the first supporting ring is sleeved on one end of the primary rod body away from the secondary rod body, a second supporting ring is sleeved between one end of the secondary rod body away from the primary rod body and the sleeve, the outer side surface of the second supporting ring is in contact with the sleeve, the inner side surface of the second supporting ring is in contact with the secondary rod body, and the second supporting ring is located at a second vibration node.

27. The ultrasonic cutting device according to claim 26, characterized in that: It also includes a second clamping ring; the sleeve is provided with a second installation step; the second support ring is located between the second installation step and the second clamping ring, the second clamping ring is threadedly connected to the sleeve, and the second clamping ring is used to press the second clamping ring toward the second installation step.

28. The ultrasonic cutting device according to claim 26, characterized in that: The second support ring is provided with a positioning hole, the secondary rod body is provided with a positioning slot corresponding to the positioning hole, the positioning slot extends along the first direction, and the sleeve is provided with a positioning pin for inserting into the positioning hole and the positioning slot.

29. The ultrasonic cutting device according to claim 25, characterized in that: The limiting member is a limiting ring, the inner side surface of the limiting ring is in contact with the first support ring, and the inner side surface of the limiting ring is provided with a first oil guide groove, and the limiting ring and the sleeve are both provided with a first oil filling hole connected with the first oil guide groove.

30. The ultrasonic cutting device according to claim 28, characterized in that The inner side surface of the second support ring is provided with a second oil guide groove, and the sleeve and the second support ring are both provided with a second oil filling hole connected with the second oil guide groove.

31. The ultrasonic cutting device according to claim 25, characterized in that: The sleeve includes a variable amplitude rod support section, a shell connecting section, and a machine tool connecting section which are arranged in sequence along the first direction, and the blade extends out of the machine tool connecting section; the diameters of the variable amplitude rod support section, the shell connecting section, and the machine tool connecting section gradually decrease; a rotating bearing is sleeved on the outer side of the shell connecting section, and the shell connecting section is rotatably connected to the outer shell through the rotating bearing; a third installation step is provided on the side of the variable amplitude rod support section facing the shell connecting section, and a pressure cover is provided on the side of the shell connecting section away from the variable amplitude rod connecting section, the pressure cover is threadedly connected to the shell connecting section, and the pressure cover is used to press the rotating bearing toward the third installation step; the outer shell is provided with an end cover for covering the outer edge of the rotating bearing.

32. The ultrasonic cutting device according to claim 31, characterized in that: A plurality of outwardly projecting steps are arranged on the outer side of the machine tool connecting section, and the plurality of outwardly projecting steps are arranged in sequence along the first direction, and the outer diameter of the outwardly projecting step closer to the blade is smaller; each of the outwardly projecting steps is provided with an air groove; wherein the air groove located in the middle part of the machine tool connecting section is provided with an air hole connected to the inner wall of the sleeve, and the air groove on the outwardly projecting step farthest from the shell connecting section extends to the end face of the machine tool connecting section away from one end of the shell connecting section; an air through hole is provided at one end of the amplitude changing rod facing the transducer; the inner cavity of the sleeve is connected with the air through hole and the air hole.

33. The ultrasonic cutting device according to claim 32, characterized in that: A threaded connection hole is arranged on the outer side of the machine tool connection section, and the machine tool connection section is used to be connected to an assembly kit on the machine tool by means of screws extending into the threaded connection hole.

34. The ultrasonic cutting device according to claim 32, characterized in that: The shell is provided with a cooling air passage, and the cooling air passage is communicated with the air through hole.

35. The ultrasonic cutting device according to claim 34, characterized in that: It also includes at least one fan; the fan is arranged on the housing, and the air outlet of the fan is connected to the cooling air duct; a convection port connected to the cooling air duct and facing the transducer is arranged on the side of the housing away from any one of the fans.

36. The ultrasonic cutting device according to claim 1, characterized in that The shell is provided with a slip ring cable hole, and the inner side of the shell is provided with a mounting groove for accommodating the conductive slip ring.

37. The ultrasonic cutting device according to claim 1, characterized in that It also includes a chuck; a third mounting hole is provided at one end of the amplitude changing rod away from the transducer, the chuck is located in the third mounting hole, and the chuck is provided with a blade mounting portion for mounting the blade.

38. The ultrasonic cutting device according to claim 37, characterized in that: A top screw threaded hole connected to the third mounting hole is provided on the side of the amplitude transformer; a conical groove is provided on one side of the chuck corresponding to the top screw threaded hole, and the top screw threaded hole is threadedly connected with an installation top screw, and the installation top screw is used to press the chuck against the inner wall of the third mounting hole.

39. The ultrasonic cutting device according to claim 38, characterized in that: The blade mounting portion includes a first clamp arm and a second clamp arm, a mounting groove for clamping the blade is formed between the first clamp arm and the second clamp arm, the blade is inserted into the mounting groove, the conical groove is arranged on the first clamp arm and the mounting groove is located on the side of the conical groove away from the top screw threaded hole.

40. The ultrasonic cutting device according to claim 39, characterized in that: The central axis of the tapered groove is located in the middle of the mounting groove.

41. The ultrasonic cutting device according to claim 39, characterized in that: The first clamping arm is provided with a mounting surface which is perpendicular to the central axis of the tapered groove.

42. A machine tool, characterized in that: It comprises a driving device, an assembly kit connected to the driving device and the ultrasonic cutting device according to any one of claims 1 to 41, wherein a screw mounting hole is provided on the outer side of the sleeve, the sleeve is connected to the assembly kit via a screw extending into the screw mounting hole, and the driving device is used to drive the ultrasonic cutting device to move.

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