Ultrasonic cutting device and machine tool
By setting a cooling air path in the ultrasonic cutting device, the transducer cooling problem is solved, the cutting ability is improved, the effective cooling of the transducer is achieved, and the cutting performance of the cutting device is enhanced.
Patent Information
- Application Number
- CN202422336711.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing leather cutting machine cutting head lacks a cooling air path, making it difficult to effectively cool the transducer, resulting in the transducer generating a lot of heat during operation.
An ultrasonic cutting device is designed. A cooling air path is set in the cutting head to allow external air to flow to the transducer, forming an air flow path from external air source to first chamber to accommodating chamber to second chamber to external environment, thereby cooling the transducer.
It effectively reduces the operating temperature of the transducer and improves the cutting ability, so that the ultrasonic cutting device can cut thicker leather, woven fabrics, non-woven fabrics, paper, synthetic materials and composite materials.
Smart Images
Figure CN223304474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic cutting, in particular to an ultrasonic cutting device and a machine tool. Background Art
[0002] In the process of making leather products, leather cutting is required to cut the leather into a specified shape. Currently, most leather manufacturing companies use leather cutting machines to cut leather.
[0003] Leather cutting machines are equipped with a cutting head. This motor drives the cutting head, converting its rotational motion into vertical movement to cut the leather. Furthermore, the cutting head can be equipped with a transducer, which generates ultrasonic vibrations. This superimposes high-frequency ultrasonic vibrations on the cutting tool, enhancing its cutting performance. However, the transducer generates significant heat during operation, and existing cutting heads lack cooling airflow, making it difficult to maintain proper cooling. Utility Model Content
[0004] The purpose of the utility model is to provide an ultrasonic cutting device, which can solve the problem that the existing cutting head is difficult to cool the transducer by configuring a cooling air path so that external air can flow to the transducer to cool the transducer.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An ultrasonic cutting device, characterized in that it includes a shell with a cavity inside, a transducer, a variable amplitude rod and a transducer shell are provided in the cavity, the front end of the transducer shell is fixedly connected to the variable amplitude rod, the transducer shell and the variable amplitude rod form a accommodating cavity, the transducer is installed at the rear end of the variable amplitude rod and is arranged in the accommodating cavity, and can output ultrasonic vibrations to a tool installed at the front end of the variable amplitude rod; an isolation member is provided on the inner side wall of the shell, which is in contact with the outer peripheral side of the transducer shell; the isolation member divides the cavity into a first chamber and a second chamber; the first chamber is connected to an external air source, the second chamber is connected to the external environment, and the first chamber and the second chamber are both connected to the accommodating cavity.
[0007] In some embodiments, a protective shell is connected to the outer side of the shell, and the protective shell cooperates with the outer side wall of the shell to form a first air path, and the first air path is connected to the external air source; and a first air vent is opened on the shell corresponding to the first air path, and the first air path is connected to the first chamber through the first air vent.
[0008] In some embodiments, the first gas path is arranged around the housing.
[0009] In some embodiments, a second vent hole is formed in the area of the transducer housing located in the first cavity, and the second vent hole connects the first cavity and the accommodating cavity.
[0010] In some embodiments, the second vent is disposed at a rear end of the transducer.
[0011] In some embodiments, the amplitude transformer is provided with a flange portion, the flange portion is fixedly connected to the front end of the transducer housing, and a third vent hole is opened on the flange portion, and the third vent hole connects the accommodating cavity and the second chamber.
[0012] In some embodiments, the amplitude transformer is provided with a flange portion, the flange portion is fixedly connected to the front end of the transducer housing, and a third vent hole is opened on the flange portion, and the third vent hole connects the accommodating cavity and the second chamber.
[0013] In some embodiments, a locking shell having an inner flange at the front end is further included, the locking shell is sleeved at the connection between the transducer housing and the flange portion, and is fixedly connected to the transducer housing, the inner flange is provided with a plurality of locking holes passing through the front and rear end surfaces thereof, and a connecting piece is provided in the locking hole to lock the flange portion and the transducer housing; and a gap is left between the amplitude rod and the inner flange, and the third vent is connected to the second chamber through the gap.
[0014] In some embodiments, an air outlet is formed on one end of the housing close to the second chamber, and the air outlet connects the second chamber with the external environment.
[0015] Based on the aforementioned ultrasonic cutting device, the present application also provides a machine tool, which includes any of the aforementioned ultrasonic cutting devices.
[0016] Compared with the prior art, the ultrasonic cutting device and machine tool implemented in this application have the following beneficial effects:
[0017] The ultrasonic cutting device of the present application is provided with a pull rod that can reciprocate along its own axial direction, and the pull rod drives the transducer housing to move synchronously in the cavity, so that the transducer and the amplitude rod can reciprocate along the axial direction of the pull rod, thereby enabling the tool connected to the amplitude rod to achieve axial reciprocating motion. In addition, the ultrasonic cutting device of the present application generates axial ultrasonic high-frequency vibrations through the transducer and the amplitude rod, so that the tool can superimpose axial ultrasonic high-frequency vibrations on the original low-frequency axial reciprocating motion, thereby improving the cutting ability of the ultrasonic cutting device, so that the ultrasonic cutting device can cut thicker leather, woven fabrics, non-woven fabrics, paper, synthetic materials, composite materials or plates, etc.
[0018] Moreover, the ultrasonic cutting device of the present application divides the cavity into a first chamber and a second chamber by setting an isolation piece, so that the first chamber is connected to an external air source, and the second chamber is connected to the external environment, and both the first chamber and the second chamber are connected to the accommodating chamber, so that the ultrasonic cutting device forms an airflow path of external air source-first chamber-accommodating chamber-second chamber-external environment. The external cooling airflow can cool the transducer in the accommodating chamber along the airflow path, so that the heat generated by the transducer can be discharged from the accommodating chamber in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of an ultrasonic cutting device in an embodiment of the present application;
[0020] Figure 2 is a partial schematic diagram of a cross section of an ultrasonic cutting device in an embodiment of the present application;
[0021] Figure 3 yes Figure 2 A magnified view of middle A;
[0022] Figure 4 yes Figure 2 Enlarged view of middle B;
[0023] Figure 5 Schematic diagram of the flow direction of the cooling airflow in the embodiment of the present application.
[0024] In the figure, 100, ultrasonic cutting device;
[0025] 1. Outer shell; 2. Cavity; 2a. First chamber; 2b. Second chamber; 3. Transducer; 4. Transducer housing; 5. Accommodating chamber; 6. Isolator; 7. Protective shell; 8. First air path; 9. First vent; 10. Air inlet; 11. Second vent; 12. Amplitude transformer; 12a. Flange; 13. Third vent; 14. Air outlet; 15. Motor; 16. Locking housing; 16a. Inner flange; 16b. Locking hole; 17. Gap; 18. Tool; 19. Connector. DETAILED DESCRIPTION
[0026] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0027] In the description of this application, it should be understood that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0028] In the description of this application, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. used in this application to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.
[0029] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.
[0030] Example
[0031] like Figure 1-5 As shown, an ultrasonic cutting device 100 according to an embodiment of the present application includes a housing 1 with a cavity 2 therein, and the housing 1 can be a split structure or an integrated structure. A transducer 3, an horn 12, and a transducer housing 4 are provided in the cavity 2. The front end of the transducer housing 4 is fixedly connected to the horn 12. The transducer housing 4 and the horn 12 form a receiving chamber 5. The transducer 3 is mounted at the rear end of the horn 12 and is disposed in the receiving chamber 5, and can output ultrasonic vibrations to a tool 18 mounted at the front end of the horn 12. An isolator 6 is provided on the inner side wall of the housing 1, which is in contact with the outer circumference of the transducer housing 4. The isolator 6 divides the cavity 2 into a first chamber 2a and a second chamber 2b, wherein the first chamber 2a is located at the rear end of the second chamber 2b, and the first chamber 2a is connected to an external gas source, the second chamber 2b is connected to the external environment, and both the first chamber 2a and the second chamber 2b are connected to the receiving chamber 5.
[0032] It can be understood that an opening is provided at the front end of the accommodating chamber 5, and the amplitude variable rod 12 extends into the accommodating chamber 5 through the opening, so that the rear end of the amplitude variable rod 12 is arranged in the accommodating chamber 5 to install the transducer 3; the front end of the transducer housing 4 is fixedly connected to the amplitude variable rod 12, so that the amplitude variable rod 12 can move synchronously with the transducer 3 and the transducer housing 4.
[0033] By arranging an isolator 6 in the cavity 2 and extending the isolator 6 to connect with the outer peripheral side of the transducer housing 4, the isolator 6 is used as a boundary. The housing 1 at the rear end of the isolator 6, the isolator 6 and the transducer housing 4 at the rear end of the isolator 6 cooperate with each other to form a first chamber 2a. The housing 1 at the front end of the isolator 6, the isolator 6 and the transducer housing 4 at the front end of the isolator 6 cooperate with each other to form a second chamber 2b. Figure 5 The arrow indicates the flow direction of the cooling airflow) which can flow through the transducer 3 through the air path of the first chamber 2a-the accommodating chamber 5-the second chamber 2b, so that the heat generated by the operation of the transducer 3 can be carried out to the external environment by the external cold air.
[0034] It should be noted that the isolation member 6 is generally made of soft material and is used to connect with the outer peripheral side of the transducer housing 4 to form a seal, so that the cavity 2 can be divided into a first chamber 2a and a second chamber 2b with the isolation member 6 as the boundary.
[0035] It is understood that a pull rod capable of reciprocating along its own axial direction is generally provided within the housing 1. The pull rod is connected to the transducer housing 4, so that when the pull rod is driven by the motor 15 to reciprocate along its own axial direction, the transducer housing 4 can be driven by the pull rod and move synchronously with the pull rod. Since the transducer 3 is installed in the transducer housing 4, the transducer housing 4 can drive the transducer 3 to move synchronously, and thus, when the pull rod is driven to reciprocate along its own axial direction, the transducer housing 4 and the transducer 3 will move synchronously therewith. In this way, the tool 18 connected to the transducer 3 can perform low-frequency reciprocating motion along the axial direction of the pull rod.
[0036] Furthermore, the transducer 3 is electrically connected to an external ultrasonic power supply to generate high-frequency ultrasonic vibrations. The ultrasonic vibrations generated by the transducer 3 can be transmitted to the tool 18, so that the tool 18 is superimposed with high-frequency ultrasonic vibrations (the amplitude of the ultrasonic vibrations can reach tens of microns and the vibration frequency can be 20K, which is just an example here), thereby improving the cutting ability of the tool 18. When the ultrasonic cutting device 100 is working, the transducer housing 4 and the transducer 3 are both accommodated in the cavity 2, so that the transducer housing 4 and the transducer 3 are protected from external environmental influences, such as dust, debris, etc. Moreover, the transducer housing 4 moves in the cavity 2, which can effectively prevent accidental external contact from affecting the processing process.
[0037] A hole structure is formed in the housing 1 corresponding to the first chamber 2a, and the hole structure is connected to an external air source, such as a cooling air supply port, to connect the first chamber 2a to the external air source. Considering that the housing 1 may rotate about its own axis during operation of the ultrasonic cutting device 100, if the hole structure is directly connected to the external air source via a connecting pipe, the connecting pipe may become entangled due to the rotation of the housing 1. Therefore, it is possible to consider adding a shell fixed relative to the housing 1 to the outside of the housing 1 to connect to the external air source.
[0038] refer to Figure 2-5 As an example of this embodiment, a protective shell 7 is connected to the outside of the shell 1, the protective shell 7 is fixed relative to the shell 1, and the protective shell 7 cooperates with the outer wall of the shell 1 to form a first air path 8, and the first air path 8 is connected to the external air source; and, a first air vent 9 is opened on the shell 1 corresponding to the first air path 8, and the first air path 8 is connected to the first chamber 2a through the first air vent 9.
[0039] An air inlet 10 can be provided on the protective shell 7, and an air flow connector can be installed at the air inlet 10, so that an external air source can be connected to the first air path 8. It can be understood that the protective shell 7 can be arranged around the outer shell 1, or it can be arranged only along the circumference of the outer shell 1 for a certain length. When the protective shell 7 is arranged around the outer shell 1, the first air path 8 will be arranged around the outer shell 1. In this case, the rotation of the outer shell 1 does not affect the connection between the first air path 8 and the first chamber 2a, and the cooling air flow can continue to enter the first chamber 2a through the first air path 8 to cool the transducer 3. The protective shell 7 is only arranged along the circumference of the outer shell 1 for a certain length, and correspondingly, the first air flow is also arranged along the circumference of the outer shell 1 for a certain length. When the outer shell 1 rotates along its own axis, the first air vent 9 opened on the outer shell 1 will be periodically connected to the first air path 8, and the cooling air flow periodically enters the first chamber 2a through the first air flow to cool the transducer 3.
[0040] A hole structure is formed in the wall forming the accommodating chamber 5, allowing the accommodating chamber 5 to communicate with the first chamber 2a and the second chamber 2b respectively. The position of the hole structure provided in the accommodating chamber 5 can be set according to the cooling requirements of the transducer 3. For example, the hole structure provided in the accommodating chamber 5 can be located at the front or rear end of the transducer housing 4, on the horn, or at the intersection of the transducer housing 4 and the isolation member 6.
[0041] refer to Figure 1-5 As an example of this embodiment, a second vent 11 is defined within the area of the transducer housing 4 within the first chamber 2a. This vent 11 connects the first chamber 2a with the accommodating chamber 5. Consequently, under the constraints of the spacer 6 and the second vent 11, the cooling airflow, after entering the first chamber 2a, can only flow along the path from the second vent 11 to the accommodating chamber 5, cooling the transducer 3 and ensuring efficient cooling.
[0042] Of course, in order to enable the cooling airflow to fully cool the transducer 3, the second vent 11 can be set at the rear end of the transducer 3, so that after the cooling airflow enters the accommodating cavity 5, it will start to diffuse from the rear end of the transducer 3 to cool the entire transducer 3.
[0043] refer to Figure 1-5 As an example of this embodiment, the horn 12 is provided with a flange portion 12a, which is sealed and connected to the front end of the transducer housing 4, thereby securing the horn 12 to the front end of the transducer housing 4. A third vent 13 is provided on the flange portion 12a. One end of the third vent 13 is connected to the accommodating chamber 5, and the other end is connected to the second chamber 2b, thereby connecting the accommodating chamber 5 with the second chamber 2b. Since the transducer 3 is mounted at the rear end of the horn 12, when the cooling airflow enters the accommodating chamber 5 and flows toward the third vent 13, it will inevitably flow through the transducer 3, thereby cooling the transducer 3.
[0044] In order to connect and fix the horn 12 to the front end of the transducer housing 4, refer to Figure 2-5 As an example of this embodiment, a locking housing 16 is provided on the exterior of the transducer housing 4. The locking housing 16 is mounted over the connection between the transducer housing 4 and the flange portion 12a and is fixedly connected to the transducer housing 4. An inner flange 16a is provided at the front end of the locking housing 16. The inner flange 16a is provided with a plurality of locking holes 16b extending through the front and rear ends of the inner flange 16a. Connectors 19 are located within the locking holes 16b to secure the flange portion 12a to the transducer housing 4. The inner flange 16a is located at the front end of the flange portion 12a, with a gap 17 remaining between the horn 12 and the inner flange 16a. The third vent 13 communicates with the second chamber 2b through the gap 17.
[0045] With the cooperation between the locking shell 16 and the transducer shell 4, the amplitude transformer 12 can be fixed to the front side of the transducer shell 4, and based on the cooperation between the third vent hole 13 and the gap 17, the cooling air flow can enter the second chamber 2b from the accommodating cavity 5 through the third vent hole 13 and the gap 17.
[0046] The third vent hole 13 is extended toward the front end of the cavity 2 so that the cooling airflow entering the second chamber 2b through the third vent hole 13 can reach the front end of the cavity 2 in the forward direction. Figure 2-5As an example of this embodiment, an air outlet 14 is provided on one end of the shell 1 close to the second chamber 2b. The air outlet 14 connects the second chamber 2b with the external environment, so that the cooling air flow can be located near the air outlet 14 after entering the second chamber 2b from the third air vent 13. Moreover, the cooling air flow itself has a lower temperature and a higher density than that of conventional atmospheric air. The air outlet 14 is opened on the shell 1 at the front end of the cavity 2, which helps the cooling air flow to be discharged from the second chamber 2b to the external environment.
[0047] Based on the aforementioned ultrasonic cutting device 100 , this embodiment further provides a machine tool, which includes the aforementioned ultrasonic cutting device 100 and can achieve the effects of the aforementioned ultrasonic cutting device 100 .
[0048] In summary, the ultrasonic cutting device 100 provided in this embodiment is provided with a pull rod that can reciprocate along its own axial direction, and the pull rod drives the transducer housing 4 to move synchronously within the cavity 2, so that the transducer 3 and the horn 12 can reciprocate along the axial direction of the pull rod, thereby causing the tool 18 connected to the horn 12 to achieve axial reciprocating motion. In addition, the ultrasonic cutting device 100 of the present application generates axial ultrasonic high-frequency vibrations through the transducer 3 and the horn 12, so that the tool 18 can superimpose axial ultrasonic high-frequency vibrations on the original low-frequency axial reciprocating motion, thereby improving the cutting ability of the ultrasonic cutting device 100, enabling the ultrasonic cutting device 100 to cut thicker leather or plates.
[0049] Moreover, the ultrasonic cutting device 100 of this embodiment divides the cavity 2 into a first chamber 2a and a second chamber 2b by providing an isolation member 6, so that the first chamber 2a is connected to an external air source, and the second chamber 2b is connected to the external environment, and both the first chamber 2a and the second chamber 2b are connected to the accommodating chamber 5, so that the ultrasonic cutting device 100 forms an airflow path of external air source-first chamber 2a-accommodating chamber 5-second chamber 2b-external environment, and the external cooling airflow can cool the transducer 3 in the accommodating chamber 5 along the airflow path, so that the heat generated by the operation of the transducer 3 can be discharged from the accommodating chamber 5 in time.
[0050] This embodiment further provides a machine tool, which includes the aforementioned ultrasonic cutting device 100 and can achieve the effects of the aforementioned ultrasonic cutting device 100.
[0051] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present application. These improvements and replacements should also be regarded as the scope of protection of the present application.
Claims
1. An ultrasonic cutting device, characterized in that: It comprises a shell with a cavity inside, wherein a transducer, a variable amplitude rod and a transducer shell are arranged in the cavity, the front end of the transducer shell is fixedly connected to the variable amplitude rod, the transducer shell and the variable amplitude rod form a accommodating cavity, the transducer is installed at the rear end of the variable amplitude rod and is arranged in the accommodating cavity, and can output ultrasonic vibration to a tool installed at the front end of the variable amplitude rod; an isolating member is provided on the inner side wall of the shell, which is in contact with the outer peripheral side of the transducer shell; the isolating member divides the cavity into a first chamber and a second chamber; the first chamber is connected to an external air source, the second chamber is connected to the external environment, and the first chamber and the second chamber are both connected to the accommodating cavity.
2. The ultrasonic cutting device according to claim 1, characterized in that A protective shell is connected to the outer side of the shell, and the protective shell cooperates with the outer side wall of the shell to form a first air path, and the first air path is connected to the external air source; and a first air vent is opened on the shell corresponding to the first air path, and the first air path is connected to the first chamber through the first air vent.
3. The ultrasonic cutting device according to claim 2, characterized in that: The first gas path is arranged around the housing.
4. The ultrasonic cutting device according to claim 1, characterized in that: A second vent hole is formed in the area of the transducer housing located in the first cavity, and the second vent hole connects the first cavity and the accommodating cavity.
5. The ultrasonic cutting device according to claim 4, characterized in that: The second vent hole is arranged at the rear end of the transducer.
6. The ultrasonic cutting device according to claim 1, characterized in that The amplitude transformer is provided with a flange portion, the flange portion is fixedly connected to the front end of the transducer housing, and a third vent hole is opened on the flange portion, and the third vent hole communicates with the accommodating cavity and the second chamber.
7. The ultrasonic cutting device according to claim 6, characterized in that: It also includes a locking shell with an inner flange at the front end, the locking shell is sleeved on the connection between the transducer shell and the flange part, and is fixedly connected to the transducer shell, the inner flange is provided with a plurality of locking holes running through the front and rear end surfaces thereof, and the locking holes are provided with connecting parts to lock the flange part and the transducer shell; and a gap is left between the amplitude rod and the inner flange, and the third vent is connected to the second chamber through the gap.
8. The ultrasonic cutting device according to claim 1, characterized in that: An air outlet is formed on one end of the housing close to the second chamber, and the air outlet connects the second chamber with the external environment.
9. A machine tool, characterized in that: The ultrasonic cutting device comprises any one of claims 1-8.