Ultrasonic turning tool clamping seat and machine tool

Abstract

The ultrasonic turning tool clamping seat comprises a cutter head mounting seat and a cutter head rotationally connected with the cutter head mounting seat, the front end face, back to the cutter head mounting seat, of the cutter head is provided with a turning tool clamping position, and the rear end face, facing the cutter head mounting seat, of the cutter head is provided with an electric input device corresponding to the turning tool clamping position. And an electric output device is arranged on the cutterhead mounting seat, the electric input device is used for being electrically connected with the ultrasonic turning tool transducer through a second wire, and the electric output device is used for being electrically connected with the ultrasonic generator through a first wire.

Description

TECHNICAL FIELD

[0001] The present application discloses the field of ultrasonic turning machining, in particular to an ultrasonic turning tool holder and a machine tool comprising the same. BACKGROUND

[0002] In the lathe machining, the existing ultrasonic turning tool adopts wired connection, which causes interference with the machine tool during switching the ultrasonic turning tool, so that it cannot automatically change the tool, and it is difficult to disassemble and assemble, and the process is complex. Specifically, since the time for switching the turning tool is long, a lot of time is consumed for replacing the turning tool each time, so it cannot work efficiently for a long time, and the machining efficiency is reduced. In addition, the installation of the wired connection turning tool is difficult and time-consuming, and since each turning tool needs to be matched with a special power cable, it is not conducive to setting multiple tool positions on the tool magazine, causing waste of the position of the machine tool magazine. CONTENT OF THE INVENTION

[0003] The purpose of the present application is to provide an ultrasonic turning tool holder and a machine tool comprising the same, by providing a non-wired connection electric input device and an electric output device on the opposite end faces of the tool holder and the tool holder mounting seat, to simplify the tool changing of the ultrasonic turning tool.

[0004] According to the first aspect of the present application, an ultrasonic turning tool holder is provided, comprising a tool holder mounting seat and a tool holder rotationally connected with the tool holder mounting seat. The tool holder is provided with a turning tool clamping position on the front end face opposite to the tool holder mounting seat, and an electric input device corresponding to the turning tool clamping position is mounted on the rear end face of the tool holder facing the tool holder mounting seat. An electric output device is provided on the tool holder mounting seat, the electric input device is electrically connected with the ultrasonic turning tool transducer through a second lead wire, and the electric output device is electrically connected with the ultrasonic generator through a first lead wire.

[0005] Alternatively, the tool holder is provided with a first threading hole penetrating through the front end face and the rear end face of the tool holder, the first threading hole is used for threading a second lead wire electrically connected with the ultrasonic turning tool transducer at one end and electrically connected with the electric input device at the other end.

[0006] Alternatively, the electric output device is configured as a wireless transmitting device, and the electric input device is configured as a wireless receiving device.

[0007] Alternatively, the electric output device comprises a first mounting seat and a first conductive member mounted on the first mounting seat, and the electric input device comprises a second mounting seat and a second conductive member mounted on the second mounting seat. The first conductive member is elastically mounted on the first mounting seat or the second conductive member is elastically mounted on the second mounting seat. The second conductive member is used to electrically touch connect with the first conductive member after the tool holder rotates a specified angle.

[0008] Alternatively, the electric output device further comprises a first mounting frame fixedly mounted on the first mounting base, the first mounting frame is provided with a first fixing hole for mounting the first conductive member at a front end surface opposite to the first mounting base, and the first mounting frame is provided with a wire fixing hole penetrating through the first fixing hole at a rear end surface opposite to the first mounting base, wherein the first conductive member is provided with a screw mounting hole, a screw is inserted into the screw mounting hole through the wire fixing hole to fix the first conductive member, and the first wire is pressed between the first conductive member and the screw.

[0009] Alternatively, the second conductive member comprises a fixed part and an electric contact part, wherein the fixed part is elastically connected with the electric contact part, and the fixed part is fixedly mounted on the second mounting base.

[0010] Alternatively, the electric input device comprises a second mounting frame, the second mounting base is provided with a mounting groove for mounting the second mounting frame, the second mounting frame is provided with a clamping groove at a side surface opposite to the side surface of the mounting groove, the fixed part is mounted in the clamping groove, the electric contact part has an included angle with respect to the fixed part, and an arc-shaped connecting part is arranged between the electric contact part and the fixed part, the side surface of the second mounting frame and the side surface of the mounting groove have a gap for accommodating the arc-shaped connecting part, and an electric contact end of the electric contact part away from the fixed part is electrically connected with the first conductive member.

[0011] Alternatively, the electric contact end is arc-shaped bent towards the fixed part, and an arc-shaped top of the electric contact end abuts against the first conductive member.

[0012] Alternatively, the electric input device is provided with a second wire hole corresponding to the first wire hole, the second wire hole penetrates through the second mounting base and the side wall of the clamping groove opposite to the mounting groove in the second mounting frame, and the second wire hole is used for arranging a second wire having an end electrically connected with the fixed part of the second conductive member.

[0013] According to the second aspect of the present application, a machine tool is provided, comprising an ultrasonic turning tool, a driving device and any one of the ultrasonic turning tool clamping bases, wherein the ultrasonic turning tool is mounted on the clamping position, the ultrasonic turning tool transducer is electrically connected with the electric input device through the second wire, and the driving device drives the ultrasonic turning tool to move along a predetermined path.

[0014] The ultrasonic turning tool clamping base provided by the present application is provided with the non-wired electric input device and the electric output device on the opposite end surfaces of the tool holder and the tool holder mounting base, which is beneficial to avoid interference when the tool holder rotates and the tool is changed, and realizes free rotation of the tool holder, thereby simplifying the tool changing of the ultrasonic turning tool, and meanwhile, a plurality of turning tools can be mounted on the tool magazine, avoiding waste of the turning tool installation position of the machine tool tool magazine, and realizing quick and convenient replacement of the ultrasonic turning tool. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of the ultrasonic turning tool clamping base according to the present application is shown;

[0016] Figure 2 A partial enlarged perspective view of an ultrasonic turning tool holder according to the present application is shown;

[0017] Figure 3 A cross-sectional view of an electrical input device and an electrical output device according to some exemplary embodiments of the present disclosure is shown;

[0018] Figure 4 An exploded plan view of an electrical input device and an electrical output device according to some exemplary embodiments of the present disclosure is shown;

[0019] Figure 5 Another perspective view of an electrical input device and an electrical output device according to the present disclosure is shown; Figure 4

[0020] Figure 6 An exploded perspective view of an electrical input device according to the present disclosure is shown; Figure 4

[0021] In the drawings, 10: tool holder; 11: bracket; 20: tool holder; 20a: front end face; 20b: rear end face; 21: turning tool holding position; 22: turning tool; 30: electrical output device; 31: first lead wire; 33: transmitting magnetic core; 34: transmitting coil; 35: first mounting bracket; 351: lead wire fixing hole; 36: screw; 37: first electrically conductive member; 371: screw mounting hole; 38: first mounting seat; 40: electrical input device; 43: receiving magnetic core; 44: receiving coil; 45: second mounting seat; 451: mounting groove; 46: second mounting bracket; 461: clamping groove; 47: second electrically conductive member; 471: fixing portion; 472: electrical contact portion; 473: arc-shaped connecting portion. DETAILED DESCRIPTION

[0022] The ultrasonic turning tool holder and machine tool disclosed by the present application will be further described in detail below in conjunction with the drawings and specific embodiments. The advantages and features of the present application will be more apparent according to the following detailed description and claims. It should be noted that the drawings are all in a very simplified form and all use non-precise ratios, only for the purpose of facilitating and clarifying the purpose of assisting in the description of the embodiments of the present application.

[0023] Referring to the drawings Figures 1 to 6 An ultrasonic turning tool holder according to the present application is described.

[0024] Figure 1 and Figure 2 ​​A perspective view and a partial enlarged perspective view of an ultrasonic turning tool holder according to the present application are shown. The ultrasonic turning tool holder according to the present application can comprise a tool holder base 10 and a tool holder head 20 rotatably connected to the tool holder base 10, and the tool holder head 20 rotates around its own axis. Alternatively, the tool holder head 20 rotates around the axis of the tool holder base 10, which can be implemented as a rotating shaft formed in the tool holder base 10, and the tool holder head 20 is rotatably mounted on the rotating shaft.

[0025] The tool holder head 20 can be provided with a plurality of tool holding positions 21, for example, equidistantly arranged on the front end surface 20a of the tool holder head 20 facing away from the tool holder base 10. A turning tool 22 can be mounted in the tool holding position 21, for example, fastened in the tool holding position 21 via a screw, or clamped by a clamp mounted on the tool holder head 20. The cutting edge of the turning tool 22 protrudes from the tool holder head 20 to machine a workpiece. The turning tool 22 is particularly an ultrasonic turning tool.

[0026] The tool holder head 20 is provided with an electrical input device 40 corresponding to the tool holding position 21 on the rear end surface 20b of the tool holder head 20 facing the tool holder base 10, for example, via a threaded connection. Correspondingly, the tool holder base 10, particularly the side of the tool holder base 10 facing the rear end surface 20b of the tool holder head 20 or the peripheral side of the tool holder base, is provided with an electrical output device 30. The electrical output device 30 can be mounted on the tool holder base 10 via a bracket 11, for example, the bracket 11 is mounted on the tool holder base via a threaded connection, or the bracket 11 is mounted on the tool holder base via a magnetic connection. The magnetic connection of the electrical output device 30 to the tool holder base 10 allows the position of the electrical output device 30 on the tool holder base 10 to be freely adjusted when the electrical output device 30 and the electrical input device 40 are not aligned, so that the electrical output device 30 and the electrical input device 40 are electrically connected.

[0027] The electrical input device 40 is configured to receive electrical energy from the electrical output device 30, particularly non-wirelessly. The electrical input device 40 is electrically connected to an ultrasonic turning tool transducer via a second lead wire (not shown), and the electrical output device 30 is electrically connected to an ultrasonic generator (not shown) via a first lead wire 31. The ultrasonic generator is used to generate a high-frequency electrical energy signal. The ultrasonic turning tool transducer (not shown) is connected to the turning tool 22, which can include a horn and a piezoelectric vibrator arranged at the end of the horn, and the piezoelectric vibrator is electrically connected to the electrical input device 40.

[0028] The high-frequency electrical energy signal generated by the ultrasonic generator is transmitted to the ultrasonic turning tool transducer via the first lead wire 31, the electrical output device 30, the electrical input device 40, and the second lead wire, and the ultrasonic turning tool transducer converts the high-frequency electrical energy signal from the ultrasonic generator into high-frequency vibrations of the turning tool 22.

[0029] The tool holder 20 can be provided with a first wire hole penetrating through the front end surface 20a and the rear end surface 20b of the tool holder 20, and the second wire is arranged in the first wire hole, and one end of the second wire is electrically connected with the ultrasonic tool holder transducer, and the other end is electrically connected with the electric input device 40.

[0030] In particular, one electric input device 40 is arranged corresponding to each tool holder clamping position 21, and then one first wire hole can be arranged correspondingly. For the sake of clarity, only one tool holder clamping position 21 and one electric input device 40 are shown in the drawings.

[0031] Alternatively, the tool holder 20 can not be provided with a wire hole. At this time, the second wire extends around the circumferential surface of the tool holder 20 to the rear end surface 20b of the tool holder 20 and is electrically connected with the electric input device 40.

[0032] In order to realize that the electric input device 40 receives electric energy from the electric output device 30 without passing through the cable, the electric input device 40 and the electric output device 30 can be configured as a wireless electrical connection or via an electrical contact.

[0033] Referring to Figure 3 , according to some embodiments of the present application, the electric output device 30 is configured as a wireless transmitting device, and the electric input device 40 is configured as a wireless receiving device. The electric output device 30 and the electric input device 40 are arranged facing each other, and they use the principle of electromagnetic induction to non-contact transmission of electric energy.

[0034] In particular, the electric output device 30 includes a transmitting magnetic core 33 and a transmitting coil 34. Correspondingly, the electric input device 40 also includes a receiving magnetic core 43 and a receiving coil 44. Optionally, the transmitting magnetic core 33 and the receiving magnetic core 43 can be ferrite material.

[0035] Referring to Figures 4 to 6 , according to some other embodiments of the present application, the electric output device 30 and the electric input device 40 are configured to be electrically connected via electrical contacts.

[0036] In particular, the electric output device 30 includes a first mounting seat 38 (see Figure 2 ) provided on the tool holder mounting seat 10 and a first conductive part 37 mounted on the first mounting seat 38, and the electric input device 40 includes a second mounting seat 45 and a second conductive part 47 mounted on the second mounting seat 45. The first conductive part 37 is mounted to the first mounting seat 38 via a screw 36.

[0037] The first conductive part 37 is elastically mounted on the first mounting seat 38 or the second conductive part 47 is elastically mounted on the second mounting seat 45. The second conductive part 47 is used to be electrically connected with the first conductive part 37 after the tool holder 20 rotates a specified angle, as Figure 5The elastic mounting of the first conductive member 37 or the second conductive member 47 allows one of the first conductive member 37 or the second conductive member 47 to elastically and continuously abut against the other to achieve a stable electrical contact.

[0038] The electrical output device 30 can further include a first mounting bracket 35 fixedly mounted on the first mounting base 38, the first mounting bracket 35 being provided with a first fixing hole for mounting the first conductive member 37 at a front end face opposite to the first mounting base 38, and the first mounting bracket 35 being provided with a wire fixing hole 351 penetrating through the first fixing hole at a rear end face opposite to the first mounting base 38, wherein the first conductive member 37 is provided with a screw mounting hole 371, and the screw 36 extends into the screw mounting hole 371 through the wire fixing hole 351 to fix the first conductive member 37 and press the first wire 31 between the first conductive member 37 and the screw 36.

[0039] The second conductive member 47 can include a fixed part 471 and an electrical contact part 472, wherein the fixed part 471 is elastically connected with the electrical contact part 472, so that the electrical contact part 472 can elastically deform relative to the fixed part 471. The electrical contact part 472 is formed to have an included angle with the fixed part 471, and an arc-shaped connecting part 473 is arranged between the electrical contact part 472 and the fixed part 471. The arc-shaped connecting part 473 allows the electrical contact part 472 to elastically flip relative to the fixed part 471 to press the electrical contact part 472 against the surface of the first conductive member 37.

[0040] An end of the electrical contact part 472 away from the fixed part 471 is an electrical contact end 4721 for electrical contact with the first conductive member 37. In some embodiments, the electrical contact end 4721 is formed to be arc-shapedly bent towards the fixed part 471, and an arc-shaped top of the electrical contact end 4721 abuts against the first conductive member 37. In this way, the electrical contact area of the electrical contact part 472 with the first conductive member 37 can be increased, while the abrasion can be reduced. In other embodiments, an end of the electrical contact part 472 away from the fixed part 471 is bent towards the fixed part to form an electrical contact end, and a side of the electrical contact part facing the fixed part forms an obtuse angle with the other part of the electrical contact part 472, so that the electrical contact end 4721 can elastically abut against the first conductive member 37 during rotation of the cutter head to maintain a stable electrical contact.

[0041] In particular, the second conductive member 47 can be formed by bending a rectangular metal plate, wherein the bent part forms the arc-shaped connecting part 473.

[0042] The fixing part 471 is fixedly installed on the second mounting seat 45. For example, the electric input device 40 further comprises a second mounting frame 46 which is fixed on the second mounting seat 45 by screws. The second mounting seat 45 is provided with a mounting groove 451 for mounting the second mounting frame 46. The second mounting frame 46 is provided with a clamping groove 461 on one side of the side surface opposite to the mounting groove 451, and the fixing part 471 is installed in the clamping groove 461 to fix the second conductive part 47 to the second mounting frame 46. In particular, the clamping groove 461 can be provided with a depth sufficient to accommodate most of the fixing part 471.

[0043] In order to clamp the second conductive part 47 and the second mounting frame 46 into the mounting groove 451, the side surface of the second mounting frame 46 and the mounting groove 451 is formed with a gap for accommodating the arc-shaped connecting part 473.

[0044] The electric input device 40 can be provided with a second wire hole corresponding to the first wire hole. The second wire hole penetrates through the second mounting seat 45 and the side surface of the second mounting frame 46 opposite to the bottom of the mounting groove, and the second wire hole is provided on the side wall of the clamping groove 461. The other end of the second wire (not shown) is connected to the fixing part 471 of the second conductive part 47 through the second wire hole.

[0045] Alternatively, the first mounting seat 38, the first mounting frame 35, the second mounting seat 45 and the second mounting frame 46 can be made of insulating materials such as plastic and the like.

[0046] On the other hand, the application also provides a machine tool comprising any one of the aforementioned ultrasonic turning tool holder, an ultrasonic turning tool 22 and a driving device, wherein the ultrasonic turning tool 22 is installed on the tool holder position 21, one end of the second wire is connected to the ultrasonic turning tool transducer, and the other end is connected to the electric input device 40, and the driving device drives the ultrasonic turning tool 22 to move along a predetermined path.

[0047] The ultrasonic turning tool holder provided by the application sets the non-wired electric input device and the electric output device on the opposite end surfaces of the tool holder and the tool holder mounting seat, which is beneficial to avoid interference when the tool holder rotates and the tool is changed, realizes free rotation of the tool holder, simplifies the tool changing of the ultrasonic turning tool, and simultaneously realizes transmission of the ultrasonic signal, realizes ultrasonic auxiliary machining in numerical control turning work, and improves efficiency and surface quality of workpieces.

[0048] The expressions "first", "second", "third" are not intended to represent the order or the number, for example, the reference to the second element is not intended to limit the existence of the first element.

[0049] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0050] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0051] The singular forms "a", "said" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0052] In the present application and the appended claims, "a plurality of", "a plurality of", unless otherwise specified, refers to two or more.

[0053] Obviously, those skilled in the art can make various modifications and variations to the ultrasonic turning tool holder and machine tool disclosed by the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and its equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. An ultrasonic turning tool holder, comprising a tool disc mounting seat and a tool disc rotatably connected to the tool disc mounting seat, characterized in that, The tool holder is provided with a tool holder clamping position on the front end surface opposite the tool holder mounting seat, and an electrical input device corresponding to the tool holder clamping position is mounted on the rear end surface of the tool holder facing the tool holder mounting seat, and an electrical output device is arranged on the tool holder mounting seat, the electrical input device is electrically connected with the ultrasonic tool transducer through a second lead wire, and the electrical output device is electrically connected with the ultrasonic generator through a first lead wire.

2. The ultrasonic tool holder according to claim 1, wherein The tool holder is provided with a first threading hole penetrating the front end surface and the rear end surface of the tool holder, and the first threading hole is used for threading a second lead wire electrically connected with the ultrasonic tool transducer at one end and electrically connected with the electrical input device at the other end.

3. The ultrasonic tool holder according to claim 1 or 2, wherein The electrical output device is configured as a wireless transmission device, and the electrical input device is configured as a wireless receiving device.

4. The ultrasonic tool holder of claim 2, wherein, The electrical output device includes a first mounting seat and a first conductive part mounted on the first mounting seat, and the electrical input device includes a second mounting seat and a second conductive part mounted on the second mounting seat, Wherein, the first conductive part is elastically mounted on the first mounting seat or the second conductive part is elastically mounted on the second mounting seat, Wherein, the second conductive part is used for electrically connecting with the first conductive part after the tool holder rotates a specified angle.

5. The ultrasonic tool holder according to claim 4, wherein The electrical output device further includes a first mounting bracket fixedly mounted on the first mounting seat, the first mounting bracket is provided with a first fixing hole for mounting the first conductive part on the front end surface opposite the first mounting seat, and the first mounting bracket is provided with a lead wire fixing hole penetrating the first fixing hole on the rear end surface opposite the first mounting seat, wherein the first conductive part is provided with a screw mounting hole, and a screw penetrates the lead wire fixing hole and extends into the screw mounting hole to fix the first conductive part and press the first lead wire between the first conductive part and the screw.

6. The ultrasonic tool holder of claim 4, wherein, The second conductive part includes a fixed part and an electrically conductive part, wherein the fixed part is elastically connected with the electrically conductive part, and the fixed part is fixedly mounted on the second mounting seat.

7. The ultrasonic tool holder according to claim 6, wherein The electrical input device includes a second mounting bracket, the second mounting seat is provided with a mounting groove for mounting the second mounting bracket, the second mounting bracket is provided with a clamping groove on one side opposite the side of the mounting groove, the fixed part is mounted in the clamping groove, the electrically conductive part has an included angle relative to the fixed part, and an arc-shaped connecting part is arranged between the electrically conductive part and the fixed part, the second mounting bracket and the side of the mounting groove have a gap for accommodating the arc-shaped connecting part, and one end of the electrically conductive part away from the fixed part is an electrically conductive end electrically connected with the first conductive part.

8. The ultrasonic tool holder according to claim 7, wherein The electrically conductive end is arc-shapedly bent towards the fixed part, and the arc-shaped top of the electrically conductive end abuts against the first conductive part.

9. The ultrasonic tool holder of claim 7, wherein, The electrical input device is provided with a second threading hole corresponding to the first threading hole, the second threading hole penetrates the second mounting seat and the side wall of the clamping groove opposite the mounting groove of the second mounting bracket, and the second threading hole is used for threading a second lead wire electrically connected with the fixed part of the second conductive part at one end.

10. A machine tool, characterized by The ultrasonic turning tool, the driving device and the ultrasonic turning tool holder as claimed in any one of the preceding claims 1-9, wherein the ultrasonic turning tool is installed on the clamping position, the ultrasonic turning tool transducer is electrically connected with the electric input device through the second wire, and the driving device drives the ultrasonic turning tool to move and move along the predetermined path.

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