Ultrasonic knife handle and ultrasonic machining equipment

Abstract

The utility model relates to an ultrasonic cutter handle and ultrasonic machining equipment, the ultrasonic cutter handle comprises a cutter handle body, and a conductive assembly, at least two conductive connecting pieces and at least one bearing which are sequentially arranged on the cutter handle body in a sleeving manner from bottom to top and rotate along with the cutter handle body, the conductive connecting piece is electrically connected with a transducer arranged in the knife handle body so that electric signals obtained from an electric brush electrically connected with the conductive assembly can be transmitted to the transducer, the knife handle further comprises a main shell, and the knife handle body is rotationally sleeved with the main shell through at least one bearing. And a main shell cavity for accommodating the conductive assembly and the conductive connecting piece is formed. According to the ultrasonic knife handle, the process steps of dismounting the bearing and / or cutting off / reconstructing wire connection are omitted, and the maintenance process is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of machine tools, and in particular to an ultrasonic tool holder and ultrasonic machining equipment that are easy to disassemble and replace. Background Art

[0002] In the field of machine tool processing, ultrasonic processing equipment usually uses brushes and conductive rings to achieve electrical connection between the fixed part (e.g., housing) and the rotating part (e.g., tool handle) in the machine tool. It is conceivable that when the brushes and the conductive rings are in contact and rotate at a relatively high speed in the working state, both are likely to suffer considerable wear. This means that there is a demand for maintenance and replacement of power transmission components in processing equipment.

[0003] However, in order to keep the rotating part in the machine tool rotating stably in the working state, one of the commonly used solutions is that the bearings between the fixed part and the rotating part are arranged in pairs. The conductive ring and the insulating cover separating the positive / negative conductive rings are installed between the pair of bearings. When the conductive ring needs to be replaced urgently due to wear, the maintenance personnel need to disassemble at least one bearing first to reach the ring electrode and the insulating cover, and then remove and replace it from the ultrasonic machining equipment. It is well known that the bearing and the rotating part are usually interference fit, so the disassembly and installation of the bearing is a very complicated and time-consuming process step, and such labor and time costs will then accumulate in the maintenance process of replacing the ring electrode. Even if some manufacturers install a pair of bearings, or, in the case of low-speed work, only a single bearing (for example, a single-row deep groove ball bearing), on one side of the conductive ring and the insulating cover to avoid the process steps of disassembling / installing the bearings, the connection method of the conductive ring and the insulating cover with other circuit transmission units is still one of the factors that hinder the rapid replacement of the conductive ring.

[0004] Furthermore, the conductive ring of some ultrasonic machining devices is electrically connected to the transducer in the tool handle through a wire. Based on this, replacing a worn conductive ring means that the wire must be cut when disassembling (worn old parts), and the electrical connection needs to be rebuilt by soldering or other means when installing (intact new parts). This further increases the labor and time cost of the maintenance process. Utility Model Content

[0005] In order to overcome the problems of the prior art, the first aspect of the present application proposes an ultrasonic knife handle, which includes a knife handle body, and a conductive component, at least two conductive connecting parts and at least one bearing which are sequentially sleeved on the knife handle body from bottom to top and rotate therewith; the conductive component contacts with each of the conductive connecting parts to form an electrical connection, and each of the conductive connecting parts is electrically connected to a transducer disposed in the knife handle body, so as to realize the transmission of an electrical signal obtained from a brush that slidably cooperates with the conductive component to the transducer;

[0006] It also includes a main shell, which is rotatably mounted on the handle body through at least one bearing to form a main shell cavity for accommodating the conductive component and the conductive connector.

[0007] In one embodiment, the contact between each of the conductive connecting members and the conductive component is an insertion contact or abutment contact.

[0008] In another embodiment, the ultrasonic knife handle further includes a cover plate, the main shell is mounted on at least one of the bearings through the cover plate, a brush fixing frame for fixing the brush is installed below the cover plate, and the brush fixing frame is arranged in the main shell cavity.

[0009] In yet another embodiment, the ultrasonic knife handle further comprises a conductive component pressure cover sleeved on the knife handle body, wherein the conductive component pressure cover is located below the conductive component and presses against the conductive component.

[0010] In yet another embodiment, a limiting flange is provided on the shank body, and an inner ring of at least one of the bearings and an inner side wall of the conductive component are respectively pressed against the upper side and the lower side of the limiting flange, and a mounting position for mounting the conductive connector is provided on the limiting flange, and the mounting position is a notch provided on the limiting flange or a groove provided on the lower side of the limiting flange, and the number of the mounting positions corresponds to the number of the conductive connectors.

[0011] In yet another embodiment, the conductive component comprises an insulating cover, an upper conductive ring and a lower conductive ring, wherein the upper conductive ring and the lower conductive ring are installed in the insulating cover at intervals; wherein the conductive component also comprises conductive columnar components corresponding to the conductive connectors in terms of quantity, each of the conductive columnar components is installed on the insulating cover and is respectively in contact with and electrically connected to the corresponding conductive connector, and the upper conductive ring is electrically connected to some of the conductive columnar components, and the lower conductive ring is electrically connected to the remaining conductive columnar components.

[0012] In yet another embodiment, the insulating cover comprises an upper insulating cover, a middle insulating cover and a lower insulating cover which are fixedly connected, the upper conductive ring is installed between the upper insulating cover and the middle insulating cover, and the lower conductive ring is installed between the middle insulating cover and the lower insulating cover;

[0013] The insulating cover is also provided with mounting holes corresponding to the number of the conductive columnar components, the lower part of each conductive columnar component is placed in the corresponding single mounting hole, the upper part of each conductive columnar component is located above the insulating cover, and the upper part of each conductive columnar component is in contact with and electrically connected to the corresponding conductive connecting piece; the intermediate layer insulating cover is provided with at least one upper notch and at least one lower notch, each upper notch is connected to part of the mounting holes, and each lower notch is connected to the remaining mounting holes, and the upper notches and the lower notches are staggered from each other in the circumferential direction; part of the conductive columnar components passes through at least one upper notch and is electrically connected to the upper conductive ring in the upper notch, and the remaining conductive columnar components passes through at least one lower notch and is electrically connected to the lower conductive ring in the lower notch.

[0014] In yet another embodiment, the middle insulating cover includes an intermediate insulating cover, and further includes an inner side wall of the intermediate insulating cover extending upward to an upper annular space formed by the upper insulating cover, and a lower annular space extending downward to the lower insulating cover to form; the intermediate insulating cover, the upper annular spacer and the upper insulating cover form an upper annular groove for accommodating the upper conductive ring, and the intermediate insulating cover, the lower annular spacer and the lower insulating cover form a lower annular groove for accommodating the lower conductive ring;

[0015] The mounting holes include at least one first through hole and at least one second through hole, each of the first through holes penetrates the upper insulating cover along the axial direction of the shank body, each of the second through holes penetrates the upper insulating cover, the upper annular spacer and the middle layer insulating cover along the axial direction of the shank body, each of the upper notches is located on the upper annular spacer and is connected to the corresponding first through hole, and the lower notch is located on the lower annular spacer and is connected to the corresponding second through hole; part of the conductive columnar members passes through at least one of the first through holes and extends into the corresponding upper notch, and is electrically connected to the upper conductive ring in the upper notch, and the remaining conductive columnar members passes through at least one of the second through holes and extends into the corresponding lower notch, and is electrically connected to the lower conductive ring in the lower notch.

[0016] In yet another embodiment, each of the conductive connecting parts is located above the corresponding conductive columnar component, and comprises an elastic conductive sheet and an insulating box with an opening toward the corresponding conductive columnar component. The elastic conductive sheet is installed in the insulating box, and each of the conductive columnar components is tightly pressed against the corresponding elastic conductive sheet to form an electrical connection.

[0017] In yet another embodiment, each of the conductive connecting parts is located above the corresponding conductive columnar component, and comprises an insulating mounting seat and a conductive matching part placed in the insulating mounting seat, wherein the conductive columnar component is a socket or a plug, and the conductive matching part is a corresponding plug or socket, and an electrical connection between each of the conductive columnar components and the corresponding conductive matching part is formed by inserting and contacting the plug with the socket.

[0018] In yet another embodiment, the shank body is provided with third through holes, which correspond to the conductive connecting members in terms of number and radial level of the shank body, and the transducer is electrically connected to each conductive connecting member through the corresponding third through holes.

[0019] In addition, the second aspect of the present application proposes an ultrasonic machining device, including the ultrasonic tool handle according to the first aspect of the present application, wherein a transmitting seat is installed on the main shaft of the ultrasonic machining device, and the ultrasonic tool handle also includes a receiving seat located on the outside of the main shell, and the receiving seat is provided with a retractable power-side connection end electrically connected to the brush, and the power supply side connection end of the transmitting seat is arranged opposite to the power-side connection end, and can form an electrical connection to supply energy to the brush.

[0020] Through the above configuration, the conductive component is designed to be arranged on one side of the bearing or the bearing pair, so that after the main housing is removed, the conductive component and its assembly parts (for example, including the conductive component gland) can be directly disassembled and replaced, thereby omitting the process steps of disassembling and assembling at least one side of the bearing, and finally achieving the simplification of the process. In addition, the conductive component and the conductive connector are electrically connected in the form of contact. Compared with the wire connection between the conductive ring and the transducer in the prior art, the contact connection eliminates the process steps of cutting / rebuilding the wire connection, further saving labor and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1a and 1bA front view and a top view of an ultrasonic machining device according to an embodiment of the present application are respectively shown;

[0023] Figure 2 Shown along Figure 1b The cross-sectional view taken along the AA line, in which the lower half of the ultrasonic tool handle and the tool are omitted for clarity;

[0024] Figure 3 An exploded view of a conductive component and a conductive component gland according to an embodiment of the present application is shown;

[0025] Figure 4 An enlarged radial cross-sectional view of a conductive connector according to an embodiment of the present application is shown; and

[0026] Figure 5 A radial cross-sectional view of a conductive component according to another embodiment of the present application is shown.

[0027] List of reference numerals:

[0028] 100-ultrasonic knife handle; 110-knife handle body; 111-transducer; 112-limiting flange; 113-third through hole; 114-installation position; 120-cover plate; 130-main housing; 131-bearing; 132-brush; 133-brush fixing bracket; 140-conductive component; 141-upper insulating cover; 142-upper conductive ring; 143-middle insulating cover; 1431-upper annular spacer; 1432-lower annular spacer; 1433-upper notch; 1434-lower notch Mouth; 1435-middle layer insulating cover; 144-lower conductive ring; 145-lower insulating cover; 146-first through hole; 147-second through hole; 148-conductive columnar member; 150, 150'-conductive connecting piece; 151-insulating box; 152-elastic conductive sheet; 151'-conductive matching piece; 152'-insulating mounting seat; 160-conductive component pressure cover; 170-side shell; 180-receiving seat, 181-electricity side connecting end, 190-bearing pressure cover, 200-transmitting seat. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] In the description of the present application, it should be understood that the terms "X-axis", "Y-axis", "Z-axis", "vertical", "parallel", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Reference Figure 1a and 1b , which respectively show a front view and a side view of an ultrasonic machining device according to an embodiment of the present application. The ultrasonic machining device comprises an ultrasonic tool holder 100 and a spindle (not shown), which will be described in detail below.

[0033] Reference Figure 2 , which shows that along Figure 1bThe cross-sectional view is taken along the AA line. The ultrasonic knife handle 100 includes a knife handle body 110, and at least one bearing 131 surrounding the knife handle body 110. In the present embodiment, it is specifically a pair of bearings 131. Of course, in other embodiments, it is also feasible to arrange a single bearing 131, for example, a single row deep groove ball bearing is arranged under low speed conditions. The knife handle body 110 also includes a conductive component 140 and at least two conductive connectors 150 sequentially sleeved thereon from bottom to top. A limit flange 112 is provided on the knife handle body 110, and a pair of bearings 131 and the conductive component 140 are respectively pressed against the upper side and the lower side of the limit flange 112. The limiting flange 112 is provided with a mounting position 114 for mounting the conductive connector 150. Specifically, the mounting position 114 is a notch provided on the limiting flange 112 or a groove provided on the lower side of the limiting flange 112. The number of the mounting position 114 is equivalent to the number of the conductive connectors 150. Moreover, the size of the mounting position 114 can be set according to actual needs. If the size of the conductive connector 150 is large, a groove can be further provided on the handle body 110. As the name implies, the conductive component 140 and the conductive connector 150 contact each other to form an electrical connection, which means that the conductive units of the two are electrically connected by contact. The handle body 110 includes a transducer 111 disposed therein, and the transducer 111 is electrically connected to the conductive connector 150, which will be described in further detail below.

[0034] Furthermore, the ultrasonic knife handle 100 further includes a main housing 130 and a cover plate 120, both of which are sleeved on the outer circumference of the knife handle body 110 and assembled together. The cover plate 120 surrounds the outer ring of the bearing 131 and is arranged close to the bearing 131. The main housing 130 is arranged close to the outer circumference of the cover plate 120, whereby the main housing 130 and the cover plate 120 jointly define a closed main housing cavity, and the main housing 130 is rotatably connected to the knife handle body 110 by means of a pair of bearings 131 located in the main housing cavity.

[0035] As one of the power transmission units, the brush 132 is fixed in the main housing 130, for example, fixed on the cover plate 120 by means of a brush holder 133, wherein the brush holder 133 is installed below the cover plate 120. The conductive component 140 is sleeved on the outer periphery of the handle body 110, and the conductive component 140 and the brush 132 can contact each other detachably, for example, in the axial direction of the ultrasonic handle 100, the two are in the same plane and thus contact each other to form an electrical connection between the brush 132 and the conductive component 140. The conductive connector 150 is arranged between a pair of bearings 131 and the conductive component 140 along the above-mentioned axial direction, and the conductive connector 150 contacts the conductive component 140 on the one hand to form an electrical connection therebetween, and is electrically connected to the transducer 111, for example, by means of soldering. As a result, the transducer 111 is electrically connected to the brush 132 through the conductive component 140, thereby obtaining electrical energy carrying an ultrasonic frequency signal. The brush 132 , the conductive component 140 and the conductive connector 150 are also accommodated in the main housing cavity.

[0036] The conductive component 140 includes an insulating cover, an upper conductive ring 142 and a lower conductive ring 144. The upper conductive ring 142 and the lower conductive ring 144 are installed in the insulating cover at intervals. The conductive component 140 also includes conductive columnar components 148 corresponding to the conductive connectors 150 in terms of quantity. Each conductive columnar component 148 is installed on the insulating cover and is respectively in contact with and electrically connected to the corresponding conductive connector 150. The upper conductive ring 142 is electrically connected to some of the conductive columnar components 148, and the lower conductive ring 144 is electrically connected to the remaining conductive columnar components 148.

[0037] Specific combination Figure 3 The insulating cover includes an upper insulating cover 141, a middle insulating cover 143, and a lower insulating cover 145. The upper conductive ring 142 is clamped between the upper insulating cover 141 and the middle insulating cover 143, and the lower conductive ring 144 is clamped between the middle insulating cover 143 and the lower insulating cover 145. The upper insulating cover 141, the middle insulating cover 143, and the lower insulating cover 145 each have at least two mounting holes coaxially along the above-mentioned axial direction. The conductive component 140 also includes a plurality of conductive columnar members 148, and the conductive columnar members 148 correspond to the mounting holes one by one. Therefore, the lower parts of these conductive columnar members 148 are respectively placed in the corresponding mounting holes, and the upper part of each conductive columnar member 148 is located above the upper insulating cover 141 to ensure that the upper part of each conductive columnar member 148 is in contact with and electrically connected to the corresponding conductive connector 150. In this embodiment, the upper insulating cover 141 has four mounting holes which are distributed thereon at 90° intervals from each other in the circumferential direction, and correspondingly, the four conductive columnar members 148 are placed into these mounting holes one by one.

[0038] Specifically, the middle insulating cover 143 includes an intermediate insulating cover 1435, and the inner edge of the inner side wall of the intermediate insulating cover extending toward the upper and lower sides in the axial direction, namely, an upper annular spacer 1431 and a lower annular spacer 1432. The upper annular spacer 1431 is tightly pressed against the upper insulating cover 141, so that the intermediate insulating cover 1435, the upper annular spacer 1431 and the upper insulating cover 141 form an upper annular groove for accommodating the upper conductive ring 142, so as to accommodate the upper conductive ring 142; similarly, the lower annular spacer 1432 is tightly pressed against the lower insulating cover 145, so that the intermediate insulating cover 1435, the lower annular spacer 1432 and the lower insulating cover 145 form a lower annular groove for accommodating the lower conductive ring 144, so as to accommodate the lower conductive ring 144. Moreover, the upper conductive ring 142 and the lower conductive ring 144 are arranged spaced from each other in the radial direction with a plurality of conductive columnar members 148. Specifically, the plurality of conductive columnar members 148 can be divided into a first group of conductive columnar members and a second group of conductive columnar members, and the upper annular spacer 1431 is provided with at least one (two in this embodiment) upper notch 1433 aligned with the first group of conductive columnar members 148 along the above-mentioned axial direction; similarly, the lower annular spacer 1432 is provided with at least one (two in this embodiment) lower notch 1434 aligned with the second group of conductive columnar members 148 along the above-mentioned axial direction. At the same time, this means that among the four mounting holes of the upper insulating cover 141, two first through holes 146 and two second through holes 147 can be divided, wherein the two first through holes 146 penetrate the upper insulating cover 141 along the axial direction of the handle body 110 and communicate with the upper notch 1433; in addition, the two second through holes 147 penetrate the upper insulating cover 141, the upper annular spacer 1431 and the intermediate insulating cover 1435 along the axial direction of the handle body 110 and communicate with the lower notch 1434. It should be noted that the upper notch 1433 and the lower notch 1434 are staggered from each other in the circumferential direction to ensure that the two are respectively aligned with the conductive columnar members 148 connected to the opposite electrical polarity, which will be described in detail below. The first group of conductive columnar members 148 is fixedly electrically connected to the upper conductive ring 142 through the upper notch 1433, for example, by means of soldering; similarly, the second group of conductive columnar members 148 is fixedly electrically connected to the lower conductive ring 144 through the lower notch 1434. In other embodiments, the division ratio of the first through hole 146 and the second through hole 147 in the mounting hole can also be other ratios.

[0039] Reference Figure 4, which shows an enlarged radial cross-sectional view of a conductive connector 150 according to an embodiment of the present application. In this embodiment, the conductive connector 150 includes an insulating box 151 and an elastic conductive sheet 152 corresponding to a plurality of conductive columnar members 148. The upper portion of the insulating box 151 is adjacent to the limiting flange 112, the elastic conductive sheet 152 is installed in the insulating box 151, and the conductive columnar member 148 is in the form of a conductive core column. Furthermore, the elastic conductive sheet 152 is electrically connected to the positive or negative electrode of the transducer 111 by means of a wire (not shown) passing through the third through hole 113 of the shank body 110. Combined with Figure 2 The contact between the conductive connector 150 and the conductive component 140 is a close contact. Specifically, in the operating state, the conductive component 140 is pressed upward against the conductive connector 150, wherein the single conductive core column passes through the insulating box 151 and presses upward against the elastic conductive sheet 152, thereby achieving electrical connection between the conductive connector 150 and the conductive component 140.

[0040] like Figure 5 As shown, in another embodiment, the conductive connector 150' includes an insulating mounting seat 152' and a conductive matching member 151' corresponding to a plurality of conductive columnar members 148, wherein the conductive matching member 151' is placed in the insulating mounting seat 152'. The conductive columnar members 148 and the conductive matching member 151' are in the form of a plug-socket, wherein the plug / socket can be purchased on the market. For example, the conductive columnar member 148 is in the form of a socket, and the conductive matching member 151' is in the form of a plug, and vice versa. At this time, the contact between the conductive connector 150' and the conductive component 140 is an insertion connection. Further, the conductive matching member 151' is electrically connected to the positive or negative pole of the transducer 111 by means of a wire (not shown) passing through the third through hole 113 of the shank body 110. Similarly, the conductive component 140 abuts against the conductive connector 150 ′ upwardly, wherein the conductive matching piece 151 ′ in the form of a plug passes downwardly through the insulating mounting seat 152 ′ and is inserted into the single conductive columnar member 148 in the form of a socket, thereby achieving electrical connection between the conductive connector 150 ′ and the conductive component 140 .

[0041] In order to limit the axial direction of the conductive component 140, not only is a limiting flange 112 provided to limit the upper part of the conductive component 140, but the ultrasonic knife handle 100 also includes a conductive component pressure cover 160, which is located below the lower insulating cover 145, presses the lower insulating cover 145 upward, and can further ensure that the conductive columnar member 148 is pressed against the elastic conductive sheet 152 or the plug is inserted into the socket, ensuring that the conductive connector 150 and the conductive component 140 are in close contact with each other. In addition, in order to limit the axial direction of the bearing 131, in addition to the limiting flange 112, a bearing pressure cover 190 is also provided above the bearing 131, that is, the bearing 131 is clamped between the bearing pressure cover 190 and the limiting flange 112.

[0042] In one embodiment, in order to replace the conductive component 140 as a single body, the conductive component 140 can be designed such that the upper insulating cover 141, the middle insulating cover 143 and the lower insulating cover 145 are fixedly connected in sequence, for example, by means of bolts, and the upper conductive ring 142 and the lower conductive ring 144 are clamped therebetween.

[0043] Back to Figure 2 The ultrasonic machining device includes the ultrasonic tool handle 100 and a main shaft, and the main shaft is connected to an ultrasonic power supply side (not shown) and a transmitter 200. Relatively speaking, the ultrasonic tool handle 100 also includes a receiving seat 180 installed on the outside of the main housing 130, and the receiving seat 180 is provided with a retractable power-side connection end 181 electrically connected to the brush 132. The power-side contact connection end of the transmitter 200 is arranged opposite to the power-side connection end and contacts each other, thereby establishing an electrical connection to supply energy to the brush 132.

[0044] The contact surface between the power-side connection end 181 and the power-supply-side connection end is a plane, which avoids point contact of the contact point and ensures the stability of the contact. Moreover, the power-side connection end 181 is retractable, and when the ultrasonic knife handle is installed, the power-side connection end 181 is prevented from hard contact with the power-supply-side connection end, thereby extending its service life. In addition, the ultrasonic knife handle 100 also includes a side shell 170 installed on the receiving seat 180, and the side shell 170 and the receiving seat 180 enclose a closed space to prevent the wire connecting the power-side connection end 181 and the brush 132 from being exposed.

[0045] Back to Figure 1a and 1b The ultrasonic machining device comprises the ultrasonic handle 100 and the main shaft according to the first aspect, on which the transmitting seat 200 is mounted. The ultrasonic handle 100 also comprises a side shell 170 mounted on the outer side of the main shell 130, and the side shell 170 comprises a receiving seat accommodated therein, thereby establishing an electric energy transmission path starting from the transmitting seat 200, passing through the power supply side connection end, the power consumption side connection end of the receiving seat, the brush 132, the conductive component 140, the conductive connector 150, and finally reaching the transducer 111. In particular, the positive polarity transmission path is composed of one of the upper conductive ring 142 and the lower conductive ring 144, the first group of conductive columnar members 148, and the corresponding conductive connector 150, and leads to the positive terminal of the transducer 111; the negative polarity transmission path is composed of the other of the upper conductive ring 142 and the lower conductive ring 144, the second group of conductive columnar members 148, and the corresponding conductive connector 150, and leads to the negative terminal of the transducer 111. It should be noted that, as described above, the staggered upper notches 1433 and lower notches 1434 prevent the two groups of conductive columnar components 148 from accidentally touching conductive rings of opposite polarities. In other words, short circuit failures in the power transmission path in the conductive component 140 are avoided.

[0046] When the ultrasonic machining device is operated for a long time and the conductive component 140 is worn and needs to be replaced, the maintenance personnel can remove the main housing 130 and the conductive component gland 160 to easily remove the conductive component 140 from the handle body 110. In such a maintenance process, the maintenance personnel do not need to perform a cumbersome bearing disassembly process, nor do they need to cut off the wire connection between the transducer 111 and the conductive component 140 as in the prior art.

[0047] It should be understood that what is described in the above drawings and specific embodiments are merely exemplary embodiments of the present application, and are not exhaustive of the possible implementation methods of the present application. Those skilled in the art may make various changes to the above specific implementation methods within the scope of protection of the present application without departing from the main purpose of the present application.

Claims

1. An ultrasonic knife handle, characterized in that: The knife handle comprises a handle body, and a conductive component, at least two conductive connecting parts and at least one bearing which are sequentially sleeved on the handle body from bottom to top and rotate with the handle body; the conductive component contacts with each conductive connecting part to form an electrical connection, and each conductive connecting part is electrically connected to a transducer arranged in the handle body, so as to realize the transmission of an electrical signal obtained from a brush which is slidably matched with the conductive component to the transducer; It also includes a main shell, which is rotatably mounted on the handle body through at least one bearing to form a main shell cavity for accommodating the conductive component and the conductive connector.

2. The ultrasonic knife handle according to claim 1, characterized in that: The contact between each of the conductive connecting members and the conductive components is insertion contact or tight contact.

3. The ultrasonic knife handle according to claim 1, characterized in that: It also includes a cover plate, the main housing is installed on at least one of the bearings through the cover plate, a brush fixing frame for fixing the brush is installed below the cover plate, and the brush fixing frame is arranged in the main housing cavity.

4. The ultrasonic knife handle according to claim 1, characterized in that: It also includes a conductive component pressure cover sleeved on the handle body, the conductive component pressure cover is located below the conductive component and presses against the conductive component.

5. The ultrasonic knife handle according to claim 1, characterized in that: A limiting flange is provided on the shank body, and an inner ring of at least one of the bearings and an inner side wall of the conductive component are respectively pressed against the upper side and the lower side of the limiting flange. A mounting position for mounting the conductive connector is provided on the limiting flange, and the mounting position is a notch provided on the limiting flange or a groove provided on the lower side of the limiting flange, and the number of the mounting positions corresponds to the number of the conductive connectors.

6. The ultrasonic knife handle according to claim 1, characterized in that: The conductive component comprises an insulating cover, an upper conductive ring and a lower conductive ring, wherein the upper conductive ring and the lower conductive ring are installed in the insulating cover at intervals; wherein the conductive component also comprises conductive columnar components corresponding to the conductive connectors in terms of quantity, wherein each conductive columnar component is installed on the insulating cover and is respectively in contact with and electrically connected to the corresponding conductive connector, and the upper conductive ring is electrically connected to some of the conductive columnar components, and the lower conductive ring is electrically connected to the remaining conductive columnar components.

7. The ultrasonic knife handle according to claim 6, characterized in that: The insulating cover comprises an upper insulating cover, a middle insulating cover and a lower insulating cover which are fixedly connected, the upper conductive ring is installed between the upper insulating cover and the middle insulating cover, and the lower conductive ring is installed between the middle insulating cover and the lower insulating cover; The insulating cover is also provided with mounting holes corresponding to the number of the conductive columnar components, the lower part of each conductive columnar component is placed in the corresponding single mounting hole, the upper part of each conductive columnar component is located above the insulating cover, and the upper part of each conductive columnar component is in contact with and electrically connected to the corresponding conductive connecting piece; the middle insulating cover is provided with at least one upper notch and at least one lower notch, each of the upper notches is connected to part of the mounting holes, and each of the lower notches is connected to the remaining mounting holes, and the upper notches and the lower notches are staggered from each other in the circumferential direction; part of the conductive columnar components passes through at least one of the upper notches and is electrically connected to the upper conductive ring in the upper notch, and the remaining conductive columnar components passes through at least one of the lower notches and is electrically connected to the lower conductive ring in the lower notch.

8. The ultrasonic knife handle according to claim 7, characterized in that: The middle insulating cover includes an intermediate insulating cover, and also includes an inner side wall of the intermediate insulating cover extending upward to an upper annular space formed by the upper insulating cover, and a lower annular space extending downward to the lower insulating cover to form; the intermediate insulating cover, the upper annular space and the upper insulating cover form an upper annular groove for accommodating the upper conductive ring, and the intermediate insulating cover, the lower annular space and the lower insulating cover form a lower annular groove for accommodating the lower conductive ring; The mounting holes include at least one first through hole and at least one second through hole, each of the first through holes penetrates the upper insulating cover along the axial direction of the shank body, each of the second through holes penetrates the upper insulating cover, the upper annular spacer and the middle layer insulating cover along the axial direction of the shank body, each of the upper notches is located on the upper annular spacer and is connected to the corresponding first through hole, and the lower notch is located on the lower annular spacer and is connected to the corresponding second through hole; part of the conductive columnar members passes through at least one of the first through holes and extends into the corresponding upper notch, and is electrically connected to the upper conductive ring in the upper notch, and the remaining conductive columnar members passes through at least one of the second through holes and extends into the corresponding lower notch, and is electrically connected to the lower conductive ring in the lower notch.

9. The ultrasonic knife handle according to claim 6 or 7, characterized in that: Each of the conductive connectors is located above the corresponding conductive columnar member, and includes an elastic conductive sheet and an insulating box with an opening toward the corresponding conductive columnar member. The elastic conductive sheet is installed in the insulating box, and each of the conductive columnar members is tightly pressed against the corresponding elastic conductive sheet to form an electrical connection.

10. The ultrasonic knife handle according to claim 6 or 7, characterized in that: Each of the conductive connecting parts is located above the corresponding conductive columnar component, and includes an insulating mounting seat and a conductive matching part placed in the insulating mounting seat, wherein the conductive columnar component is a socket or a plug, and the conductive matching part is a corresponding plug or socket, and an electrical connection between each of the conductive columnar components and the corresponding conductive matching part is formed by inserting and contacting the plug with the socket.

11. The ultrasonic knife handle according to claim 1, characterized in that: The shank body is provided with a third through hole, and the third through holes correspond to the conductive connecting members in terms of number and radial direction of the shank body. The transducer is electrically connected to each conductive connecting member through the corresponding third through hole.

12. An ultrasonic machining device, comprising the ultrasonic tool handle according to any one of claims 1 to 11, characterized in that: A transmitting seat is installed on the main shaft of the ultrasonic machining equipment, and the ultrasonic tool handle also includes a receiving seat located outside the main shell, and the receiving seat is provided with a retractable power-side connecting end electrically connected to the brush, and the power supply side connecting end of the transmitting seat is arranged opposite to the power-side connecting end, and an electrical connection can be formed to supply energy to the brush.

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