Split combined type ultrasonic vibration knife handle
The ultrasonic vibration tool holder with its split-combination design solves the problem of difficult maintenance of traditional ultrasonic tool holders, enables flexible replacement of the secondary coil, improves maintenance convenience and service life, and promotes the widespread application of ultrasonic processing technology.
Patent Information
- Application Number
- CN202423223515.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The integrated structure of existing ultrasonic scalpel holders makes them difficult to repair in case of transducer or secondary coil failure, resulting in low reliability and short service life.
The design adopts a modular approach, separating the ultrasonic vibration component, the secondary coil component, and the tool holder interface component. The secondary coil, which is easily damaged, can be easily replaced by connecting parts and positioning pins.
It improves the ease of maintenance and the flexibility of component replacement, reduces maintenance costs, extends the service life of the tool holder, and promotes the application of ultrasonic vibration tool holders in more fields.
Smart Images
Figure CN223603953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to ultrasonic vibration machining technical field relates to a kind of ultrasonic vibration machining device, more particularly to a kind of multi-frequency, multi-vibration form split combination formula ultrasonic vibration tool holder. BACKGROUND
[0002] In the modern mechanical processing field, especially for hard and brittle materials of high hardness and high brittleness, the traditional processing mode faces many technical challenges. As an efficient and precise processing method, ultrasonic machining technology emerges as the times require, and its core is to generate ultrasonic vibration on the tool holder assembly by using ultrasonic transducer, thereby assisting material removal. This technology significantly improves processing performance and quality, not only expands the range of processable materials, but also greatly improves processing accuracy and efficiency, and thus has wide application prospects in high-end manufacturing fields such as aerospace, optical instruments and electronic chips.
[0003] The common ultrasonic tool holder on the market adopts a typical integrated structure, and its main feature is that the vice side, the tool holder shell and the ultrasonic transducer are connected by welding. However, this design has exposed some significant limitations in actual processing. When the transducer or vice side coil of the integrated structure ultrasonic tool holder fails, it often cannot work normally and is difficult to repair. In addition, the main failure source of the ultrasonic tool holder is the damage of the vice side coil, which not only significantly reduces the reliability of the ultrasonic tool holder, but also greatly affects its service life. Therefore, it is particularly important to develop a split combination type ultrasonic vibration tool holder. UTILITY MODEL CONTENT
[0004] The utility model provides a kind of split combination formula ultrasonic vibration tool holder to overcome the defects of prior art.
[0005] To achieve the above object, the utility model adopts the following technical solutions:
[0006] A split combination formula ultrasonic vibration tool holder, comprising an ultrasonic vibration component, a vice side coil component and a tool holder interface component; the ultrasonic vibration component comprises an ultrasonic vibrator and a connecting shell; the ultrasonic vibrator is fixed with the connecting shell, and the end of the connecting shell has a connecting boss; the vice side coil component has a mounting hole, which is sleeved on the connecting boss through the mounting hole; the vice side coil component comprises a coil, and the coil is electrically connected with the ultrasonic vibrator; the tool holder interface component is fixed with the connecting shell through a connecting piece, and the vice side coil component is fixed between the tool holder interface component and the ultrasonic vibration component.
[0007] To optimize the above technical solutions, the specific measures taken also include:
[0008] Further, the secondary side coil component further comprises an aluminum ring, a magnetic core and an inner bushing; the inner bushing is arranged in the aluminum ring; the magnetic core is arranged between the aluminum ring and the inner bushing in a ring groove structure; the coil is fixed in the magnetic core; the aluminum ring, the magnetic core and the inner bushing are fixed with each other; the mounting hole is arranged at the center of the inner bushing, and the secondary side coil component is sleeved on the connecting boss through the inner bushing.
[0009] Further, the ultrasonic vibration component further comprises two groups of ultrasonic nylon sleeves and electrode male seats; the ultrasonic nylon sleeves are fixedly embedded in the end face of the connecting shell and located around the connecting boss; the two electrode male seats are connected with the positive and negative wires of the ultrasonic vibrator and fixed in the corresponding ultrasonic nylon sleeves; the secondary side coil component further comprises two groups of secondary side nylon sleeves and electrode female seats; the secondary side nylon sleeves are fixedly embedded in the end face of the inner bushing adjacent to the connecting shell; the two wire ends of the coil pass through the side wall of the magnetic core and the inner bushing and are connected with the two electrode female seats, and the two electrode female seats are fixed in the corresponding secondary side nylon sleeves; the electrode male seat and the electrode female seat are one-to-one corresponding and connected.
[0010] Further, the end face of the connecting shell and the outer side of the ultrasonic nylon sleeve are provided with an annular sealing ring groove, and a sealing ring is arranged in the sealing ring groove.
[0011] Further, the ultrasonic vibrator comprises a front cover plate, a PZT-8 piezoelectric ceramic sheet, an electrode sheet and a rear cover plate; the end of the front cover plate has a stud, the PZT-8 piezoelectric ceramic sheet and the electrode sheet are sleeved on the stud in sequence, the rear cover plate has a threaded hole, and the PZT-8 piezoelectric ceramic sheet and the electrode sheet are fixed by being connected to the stud through the threaded hole; the PZT-8 piezoelectric ceramic sheet, the electrode sheet and the rear cover plate of the ultrasonic vibrator are arranged in the connecting shell and fixed by the front cover plate and the connecting shell.
[0012] Further, the connecting boss has a tapered groove; the end of the tool shank interface component has a tapered boss matched with the tapered groove; the tapered boss is inserted into the tapered groove.
[0013] Further, the bottom of the tapered groove has a locking threaded groove; the tool shank interface component has a stepped hole penetrating the tapered boss; the connecting piece is a locking screw; the head of the locking screw is arranged in the stepped hole of the tool shank interface component, and the end is threadedly connected in the locking threaded groove of the ultrasonic vibration component.
[0014] Further, the ultrasonic vibration component, the secondary side coil component and the tool shank interface component are positioned by a plurality of positioning pins; the positioning pins pass through the secondary side coil component and are inserted into the tool shank interface component and the connecting shell at two ends respectively.
[0015] Further, the ultrasonic vibration component and the secondary side coil component are further fixed by a plurality of plug screws; the plug screws pass through the secondary side coil component and are threadedly connected in the connecting shell at the end.
[0016] Further, the tool shank interface part is made of stainless steel material and has the same structure as the tool shank interface of the machine tool spindle; the tool shank interface part is connected with the machine tool spindle.
[0017] The utility model discloses a beneficial effect lies in: the utility model provides a kind of split combination type ultrasonic vibration tool shank, the split combination type design is carried out to the problems existing in existing ultrasonic vibration tool shank, namely, the easy-to-damage secondary side coil is separated from tool shank interface and ultrasonic vibration component, and is annexed.This split combination type structure can effectively overcome the limitations of traditional integrated structure, on the one hand, the maintenance convenience and component replacement flexibility are improved, the risk that tool shank is scrapped due to the local secondary side coil damage of ultrasonic vibration tool shank is avoided, new coil can be easily replaced when secondary side coil is damaged, rupture, greatly reduce the cost of ultrasonic vibration tool shank maintenance and repair, reduce the use cost of customer, also prolong the service life of tool shank;On the other hand, the ultrasonic vibration tool shank structure is easy to assemble and disassemble, provides new structure and train of thought for ultrasonic vibration tool shank batch use and maintenance, in turn, it is favorable to promote the wide application of ultrasonic machining technology in more fields, further promote the use and development of ultrasonic vibration tool shank in each mechanical processing industry. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is split combination type ultrasonic vibration tool shank structure schematic diagram;
[0019] Figure 2 It is split combination type ultrasonic vibration tool shank exploded structure schematic diagram;
[0020] Figure 3 It is split combination type ultrasonic vibration tool shank section view;
[0021] Figure 4 It is ultrasonic vibration component exploded structure schematic diagram;
[0022] Figure 5 It is ultrasonic vibrator and connecting shell exploded structure section view;
[0023] Figure 6 It is the three-dimensional structure schematic diagram of secondary side coil component;
[0024] Figure 7 It is the exploded structure schematic diagram of secondary side coil component;
[0025] Figure 8 It is the section view of secondary side coil component;
[0026] Figure 9 It is the end surface structure schematic diagram of connecting shell;
[0027] Figure 10 It is the three-dimensional structure schematic diagram of tool shank interface component. DETAILED DESCRIPTION
[0028] The specific embodiments of the present application will be described below with reference to the accompanying drawings.
[0029] As Figures 1-3 shown, the present application provides a split combination type ultrasonic vibration tool shank, which comprises an ultrasonic vibration component 1, a side coil component 2 and a tool shank interface component 3.
[0030] The ultrasonic vibration component 1 comprises an ultrasonic vibrator 11 and a connecting shell 12. The ultrasonic vibrator 11 is fixed with the connecting shell 12, and the end of the connecting shell 12 has a connecting boss 121. The side coil component 2 has a mounting hole, which is sleeved on the connecting boss 121. The side coil component 2 comprises a coil, which is electrically connected with the ultrasonic vibrator 11. The tool shank interface component 3 is fixed with the connecting shell 12 through a connecting piece, and at the same time, the side coil component 2 is fixed between the tool shank interface component 3 and the ultrasonic vibration component 1.
[0031] Regarding the ultrasonic vibration component 1: as Figure 4 and Figure 5 shown, the ultrasonic vibrator 11 comprises a front cover plate 111, a PZT-8 piezoelectric ceramic sheet 112, an electrode sheet and a rear cover plate 113. The end of the front cover plate 111 has a stud 1111, the PZT-8 piezoelectric ceramic sheet 112 and the electrode sheet are sleeved on the stud 1111 in sequence, and the rear cover plate 113 has a threaded hole, which is connected on the stud 1111 to press and fix the PZT-8 piezoelectric ceramic sheet 112 and the electrode sheet. That is, the PZT-8 piezoelectric ceramic sheet 112 and the electrode sheet are press-fitted between the rear cover plate 113 and the front cover plate 111 through the stud 1111 of the front cover plate 111. The positive and negative poles of the electrode sheet are respectively connected with a wire.
[0032] The connecting shell 12 is made of stainless steel and has a hollow cylindrical structure. The PZT-8 piezoelectric ceramic sheet 112, the electrode sheet and the rear cover plate 113 of the ultrasonic vibrator 11 are all arranged in the hollow cylindrical structure of the connecting shell 12 and fixed with the connecting shell 12 through the front cover plate 111. Specifically, the ultrasonic vibrator 11 is installed in the connecting shell 12 by a small interference fit, and the two are welded into one body by laser welding.
[0033] The ultrasonic vibration component 1 further comprises two groups of ultrasonic nylon sleeves 131 and electrode male seats 132. The ultrasonic nylon sleeve 131 is fixedly embedded in the end face of the connecting shell 12 and located around the connecting boss 121. The two electrode male seats 132 are connected with the positive and negative wires of the ultrasonic vibrator 11 and fixed in the corresponding ultrasonic nylon sleeve 131. Specifically, the ultrasonic nylon sleeve 131 is locked on the connecting shell 12 by screw threads and fixed by thread glue. The electrode male seat 132 is fixed in the ultrasonic nylon sleeve 131 by 502 glue.
[0034] Regarding secondary coil component 2: (as follows) Figures 6-8 As shown, the secondary coil component 2 also includes an aluminum ring 21, a magnetic core 22, and an inner bushing 23. The inner bushing 23 is disposed inside the aluminum ring 21. The magnetic core 22 has an annular groove structure and is placed between the aluminum ring 21 and the inner bushing 23. The coil is fixed inside the magnetic core 22. The aluminum ring 21, the magnetic core 22, and the inner bushing 23 are mutually fixed. Specifically, the interior of the aluminum ring 21 is stepped, and one side of the inner bushing 23 has a matching outer edge. When the inner bushing 23 is disposed inside the aluminum ring 21, its outer edge is embedded in the stepped structure inside the aluminum ring 21, forming a closed end. The magnetic core 22 is placed between the aluminum ring 21 and the inner bushing 23 from the other end, i.e., the open end. Then, the coil is encapsulated inside the magnetic core 22 using epoxy resin, which simultaneously fixes the magnetic core 22, the aluminum ring 21, and the inner bushing 23. Furthermore, the inner bushing 23 has several blind holes on its sidewalls, and the epoxy resin before curing will flow into the blind holes, thereby improving the overall fixing strength after curing.
[0035] The mounting hole is located at the center of the inner sleeve 23, meaning that the secondary coil component 2 is fitted onto the connecting boss 121 through the inner sleeve 23.
[0036] The secondary coil component 2 also includes two sets of secondary nylon sleeves 241 and electrode females 242. The secondary nylon sleeves 241 are fixedly embedded in the end face of the inner bushing 23 adjacent to the connecting housing 12. The two terminals of the coil pass through the side wall of the magnetic core 22 and the inner bushing 23 and are connected to the two electrode females 242, which are fixed within their respective secondary nylon sleeves 241. Specifically, the secondary nylon sleeves 241 are screwed onto the inner bushing 23 and secured with threadlocker. The electrode females 242 are fixed within the secondary nylon sleeves 241 using 502 glue.
[0037] The female electrode 242 and the male electrode 132 are connected in a one-to-one correspondence.
[0038] like Figure 9 As shown, in a preferred embodiment, an annular sealing groove 122 is provided on the end face of the connecting shell 12 and the outer side of the ultrasonic nylon sleeve 131. A sealing ring is provided in the sealing groove 122. When the secondary coil component 2 is fixed with the ultrasonic vibration component 1, the sealing ring is squeezed, thereby achieving the sealing of the internal electrode male seat 132 and electrode female seat 242, so as to play the role of insulation and waterproofing.
[0039] Regarding tool holder interface component 3: as follows: Figure 10 As shown, the tool holder interface component 3 is made of stainless steel and has the same structure as the tool holder interface used on the machine tool spindle. The tool holder interface component 3 is connected to the machine tool spindle.
[0040] Regarding connections: such as Figure 3 , Figure 5 and Figure 10As shown, the connecting boss 121 has a tapered slot 123. The end of the shank interface part 3 has a tapered boss 31 matching the tapered slot 123. When installed, the tapered boss 31 is inserted into the tapered slot 123. The shank interface part 3 and the ultrasonic vibration part 1 are ensured concentricity of installation by the tapered surface cooperation.
[0041] The bottom of the tapered slot 123 has a locking screw thread groove. The shank interface part 3 has a stepped hole through the tapered boss 31. The connecting member is a locking screw 41. The head of the locking screw 41 is arranged in the stepped hole of the shank interface part 3, and the end is threadedly connected in the locking screw thread groove of the ultrasonic vibration part 1, so as to fix the shank interface part 3 and the connecting shell 12 together.
[0042] The ultrasonic vibration part 1, the sub-coil part 2 and the shank interface part 3 are positioned by a plurality of positioning pins 42, which pass through the inner bushing 23 of the sub-coil part 2 and are inserted into the shank interface part 3 and the connecting shell 12 respectively at both ends.
[0043] The ultrasonic vibration part 1 and the sub-coil part 2 are also fixed by a plurality of set screws 43, which pass through the inner bushing 23 of the sub-coil part 2 and are threadedly connected in the connecting shell 12 at the end.
[0044] That is, the ultrasonic vibration part 1, the sub-coil part 2 and the shank interface part 3 are prevented from rotating relatively during machining by the pin hole positioning method, and the ultrasonic vibration part 1 and the sub-coil part 2 are connected and fixed by the set screws 43.
[0045] In use, the sub-coil part 2 is sleeved on the ultrasonic vibration part 1, then the positioning pins 42 are inserted for positioning, and then the set screws 43 are screwed in to fix the sub-coil part 2 and the ultrasonic vibration part 1. Finally, the shank interface part 3 is installed, and the whole is fixed by the locking screw 41.
[0046] When the coil is damaged and needs to be replaced, the ultrasonic vibration part 1, the sub-coil part 2 and the shank interface part 3 are disassembled and separated, a new sub-coil part 2 is replaced, and then assembled according to the above method.
[0047] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "rear" and the like referred to in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model. The change or adjustment of the relative relationship is also considered as the scope of the utility model without substantial change of the technical content.
[0048] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A split combined ultrasonic vibration tool holder, characterized in that: it comprises an ultrasonic vibration component, a side coil component and a tool holder interface component; the ultrasonic vibration component comprises an ultrasonic vibrator and a connecting shell, the ultrasonic vibrator is fixed with the connecting shell, and an end of the connecting shell is provided with a connecting boss; the side coil component is provided with a mounting hole through which the side coil component is sleeved on the connecting boss; the side coil component comprises a coil, and the coil is electrically connected with the ultrasonic vibrator; the tool holder interface component is fixed with the connecting shell through a connecting piece, and the side coil component is fixed between the tool holder interface component and the ultrasonic vibration component. 2.The split combined ultrasonic vibration tool holder according to claim 1, characterized in that: the side coil component further comprises an aluminum coil, a magnetic core and an inner sleeve; the inner sleeve is arranged in the aluminum coil; the magnetic core is in a ring groove structure and is arranged between the aluminum coil and the inner sleeve; the coil is fixed in the magnetic core; the aluminum coil, the magnetic core and the inner sleeve are fixed with each other; the mounting hole is arranged at the center of the inner sleeve, and the side coil component is sleeved on the connecting boss through the inner sleeve. 3.The split combined ultrasonic vibration tool holder according to claim 2, characterized in that: the ultrasonic vibration component further comprises two groups of ultrasonic nylon sleeves and electrode male seats; the ultrasonic nylon sleeves are fixedly embedded in the end face of the connecting shell and are located around the connecting boss; the two electrode male seats are connected with the positive and negative wires of the ultrasonic vibrator and are fixed in the corresponding ultrasonic nylon sleeves; the side coil component further comprises two groups of side nylon sleeves and electrode female seats; the side nylon sleeves are fixedly embedded in the end face of the inner sleeve adjacent to the connecting shell; the two wire ends of the coil pass through the side wall of the magnetic core and the inner sleeve and are connected with the two electrode female seats, and the two electrode female seats are fixed in the corresponding side nylon sleeves; the electrode male seats and the electrode female seats are one-to-one corresponding. 4.The split combined ultrasonic vibration tool holder according to claim 3, characterized in that: the end face of the connecting shell and the outer side of the ultrasonic nylon sleeve are provided with annular sealing ring grooves, and sealing rings are arranged in the sealing ring grooves. 5.The split combined ultrasonic vibration tool holder according to claim 1, characterized in that: the ultrasonic vibrator comprises a front cover plate, a PZT-8 piezoelectric ceramic sheet, an electrode sheet and a rear cover plate; an end of the front cover plate is provided with a stud, the PZT-8 piezoelectric ceramic sheet and the electrode sheet are sleeved on the stud in sequence, the rear cover plate is provided with a threaded hole, and the rear cover plate is connected on the stud through the threaded hole to press and fix the PZT-8 piezoelectric ceramic sheet and the electrode sheet; the PZT-8 piezoelectric ceramic sheet, the electrode sheet and the rear cover plate of the ultrasonic vibrator are arranged in the connecting shell and are fixed with the connecting shell through the front cover plate. 6.The split combined ultrasonic vibration tool holder according to claim 1, characterized in that: the connecting boss is provided with a tapered groove; an end of the tool holder interface component is provided with a tapered boss matched with the tapered groove; the tapered boss is inserted into the tapered groove. 7.The split combined ultrasonic vibration tool holder according to claim 6, characterized in that: a bottom of the tapered groove is provided with a locking thread groove; the tool holder interface component is provided with a stepped hole penetrating through the tapered boss; and the connecting piece is a locking screw. The head of the locking screw is arranged in the stepped hole of the shank interface part, and the end is threadedly connected in the locking screw groove of the ultrasonic vibration part.
8. The split combined ultrasonic vibration shank according to claim 1, characterized in that: The ultrasonic vibration part, the secondary coil part and the shank interface part are positioned by positioning pins, the positioning pins pass through the secondary coil part, and the two ends are respectively inserted into the shank interface part and the connecting shell.
9. The split combined ultrasonic vibration shank according to claim 1, characterized in that: The ultrasonic vibration part and the secondary coil part are further fixed by a plurality of jam screws, the jam screws pass through the secondary coil part, and the ends are threadedly connected in the connecting shell.
10. The split combined ultrasonic vibration shank according to claim 1, characterized in that: The shank interface part is made of stainless steel material, and has the same structure as the shank interface of the main shaft of the machine tool; the shank interface part is connected with the main shaft of the machine tool.