CN220373919U - Hollow ultrasonic vibrator for additive manufacturing device - Google Patents
Hollow ultrasonic vibrator for additive manufacturing device Download PDFInfo
- Publication number
- CN220373919U CN220373919U CN202321437000.9U CN202321437000U CN220373919U CN 220373919 U CN220373919 U CN 220373919U CN 202321437000 U CN202321437000 U CN 202321437000U CN 220373919 U CN220373919 U CN 220373919U
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- Prior art keywords
- hollow
- additive manufacturing
- hollow bolt
- piezoelectric ceramic
- ultrasonic vibrator
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- 239000000654 additive Substances 0.000 title claims abstract description 24
- 230000000996 additive effect Effects 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a hollow ultrasonic vibrator for an additive manufacturing device, which comprises a hollow bolt and a needle cylinder sleeved in the hollow bolt, wherein the hollow bolt is sleeved with the needle cylinder; the needle cylinder is used for storing powder; the middle part of the body of the hollow bolt is sleeved with a plurality of piezoelectric ceramic plates, and electrodes are arranged between each piezoelectric ceramic plate; the piezoelectric ceramic piece is clamped by the front cover plate and the rear cover plate and is fixed on the body of the hollow bolt; an insulating protective sleeve is arranged between the piezoelectric ceramic piece and the outer circumferential surface of the hollow bolt; the insulating protective sleeve is used as an insulating structure between the piezoelectric ceramic piece and the hollow bolt. The hollow ultrasonic vibrator is more convenient for replacing the needle cylinder in practical application, can avoid powder pollution caused by using the same needle cylinder, and can maximally transmit ultrasonic vibration to the needle head to avoid powder blockage.
Description
Technical Field
The utility model relates to the technical field of additive manufacturing, in particular to a hollow ultrasonic vibrator for an additive manufacturing device.
Background
The ultrasonic transducer is an energy converter which can convert electric energy into mechanical energy, and the main working mode is that the piezoelectric effect theory is utilized, and the mechanical vibration of ultrasonic frequency can be realized by introducing voltage with special frequency to the piezoelectric sheet.
Ultrasound transducers are mainly of two types: an emissive type and a receiving type. At present, a large number of ultrasonic transducers are sold in the market, and the ultrasonic transducer is mainly Langmuir ultrasonic transducers and is applied to a plurality of fields such as ultrasonic cleaning, ultrasonic welding and the like. For the metal additive manufacturing technology, the shape change of a molten pool can be realized by using ultrasonic vibration, the forming performance of parts is optimized, and meanwhile, the ultrasonic transducer can also be applied to the field of multiple materials.
The current research is mainly based on the common ultrasonic transducer to realize the vibration powder falling, the vibration frequency of the common ultrasonic transducer is gradually diffused from the middle, the vibration effect is gradually reduced, if the ultrasonic transducer is arranged outside, the falling of powder is unfavorable, the positioning of a needle head is difficult, in addition, the clamping device is added, the volume of the whole powder falling device is increased, and certain difficulties are caused in later maintenance and replacement.
Therefore, in order to solve the above-mentioned problems, there is a need for a hollow ultrasonic vibrator for additive manufacturing, in which the main pre-tightening bolt is hollow, the volume is small, and the syringe can pass through the fixing bolt to realize stable falling of powder.
Disclosure of Invention
The present utility model aims to overcome the above-mentioned drawbacks and disadvantages of the prior art and to provide a hollow ultrasound transducer for an additive manufacturing device.
The utility model is realized by the following technical scheme:
a hollow ultrasonic vibrator for an additive manufacturing device comprises a hollow bolt 8 and a needle cylinder 6 sleeved inside the hollow bolt 8; the syringe 6 is used for storing powder;
the middle part of the body of the hollow bolt 8 is sleeved with a plurality of piezoelectric ceramic plates 3, and electrodes 5 are arranged between each piezoelectric ceramic plate 3;
the piezoelectric ceramic plate 3 is clamped by the front cover plate 2 and the rear cover plate 4 and is fixed on the body of the hollow bolt 8.
An insulating protective sleeve 9 is arranged between the piezoelectric ceramic sheet 3 and the outer circumferential surface of the hollow bolt 8; the insulating protective sleeve 9 serves as an insulating structure between the piezoelectric ceramic plate 3 and the hollow bolt 8.
The electrode 5 is connected with an external power supply and is used for providing electric energy for the piezoelectric ceramic plate 3 and converting the electric energy into mechanical vibration. When the number of the electrodes 5 is three, the middle one is a positive electrode and the remaining two are negative electrodes.
The front cover plate 2 of the hollow bolt 8 is connected to the clamping block 1 by threads at one end.
The end part of the needle cylinder 6 is provided with a powder outlet pipe 10; the clamping block 1 is provided with a powder outlet pipe channel for passing through the powder outlet pipe 10;
a round hole 7 is also formed in the clamping block 1 along the vertical direction of the powder outlet pipe channel;
the round hole 7 is screwed with a screw for propping up the powder outlet pipe 10 to prevent the needle cylinder 6 from shifting or loosening; the round hole 7 is of an internal thread structure.
The diameter of the powder outlet pipe 10 is smaller than the diameter of the syringe 6 body.
The diameter of the inner wall of the powder outlet pipe 10 is 0.15mm to 0.5mm.
The front cover plate 2 is made of titanium alloy TC4, and the rear cover plate 4 is made of 45 # stainless steel.
Compared with the prior art, the utility model has the following advantages and effects:
the main structure of the utility model adopts a hollow bolt 8 and a needle cylinder 6 sleeved in the hollow bolt 8; the needle cylinder 6 is used for storing powder, and when in use, the powder outlet pipe 10 of the needle cylinder 6 is vertical or in a downward inclined state; the middle part of the body of the hollow bolt 8 is sleeved with a plurality of piezoelectric ceramic plates 3, and an electrode 5 is arranged between each piezoelectric ceramic plate 3; the piezoceramic sheet 3 is clamped by the front cover plate 2 and the rear cover plate 4 and is thereby fixed to the body of the hollow bolt 8. The hollow bolt 8 is of a hollow structure, the volume is small, and the needle cylinder can be only disassembled when being arranged in the fixed hollow bolt 8; a powder outlet pipe channel for passing through the powder outlet pipe 10 is arranged on the clamping block 1, and a round hole 7 is also formed on the clamping block 1 along the vertical direction of the powder outlet pipe channel; the round hole 7 is used for inserting pins or screws and is used for propping up the powder outlet pipe 10 to prevent the needle cylinder 6 from shifting or loosening; when the round hole 7 is screwed into the screw, the inner wall of the round hole 7 adopts a thread structure. The hollow ultrasonic vibrator with the structure combination is convenient for replacing a needle cylinder, can avoid powder pollution caused by using the same needle cylinder, and can maximally transfer ultrasonic vibration to a needle head so as to avoid powder blockage.
Drawings
Fig. 1 is a schematic view of a hollow ultrasonic vibrator structure for an additive manufacturing apparatus according to the present utility model.
Fig. 2 is a schematic view of the sectional structure of fig. 1 along A-A.
Fig. 3 is another schematic view of a hollow ultrasonic transducer for an additive manufacturing apparatus according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to specific examples.
Examples
As shown in fig. 1-3. The utility model discloses a hollow ultrasonic vibrator for an additive manufacturing device; the hollow ultrasonic vibrator is used as a component in a composite material additive manufacturing device;
comprises a hollow bolt 8 and a needle cylinder 6 sleeved inside the hollow bolt 8; the syringe 6 is used for storing powder;
the middle part of the body of the hollow bolt 8 is sleeved with a plurality of piezoelectric ceramic plates 3, and electrodes 5 are arranged between each piezoelectric ceramic plate 3;
the piezoelectric ceramic plate 3 is clamped by the front cover plate 2 and the rear cover plate 4 and is fixed on the body of the hollow bolt 8.
An insulating protective sleeve 9 is arranged between the piezoelectric ceramic sheet 3 and the outer circumferential surface of the hollow bolt 8; the insulating protective sleeve 9 serves as an insulating structure between the piezoelectric ceramic plate 3 and the hollow bolt 8.
The electrode 5 is connected with an external power supply and is used for providing electric energy for the piezoelectric ceramic plate 3 and converting the electric energy into mechanical vibration. When the number of the electrodes 5 is three, the middle one is a positive electrode and the remaining two are negative electrodes.
The number of the piezoelectric ceramic plates 3 can be determined according to practical application requirements.
The front cover plate 2 of the hollow bolt 8 is connected to the clamping block 1 by threads at one end.
The end part of the needle cylinder 6 is provided with a powder outlet pipe 10; the clamping block 1 is provided with a powder outlet pipe channel for passing through the powder outlet pipe 10;
a round hole 7 is also formed in the clamping block 1 along the vertical direction of the powder outlet pipe channel;
the round hole 7 is screwed with a screw for propping up the powder outlet pipe 10 to prevent the needle cylinder 6 from shifting or loosening; the round hole 7 is of an internal thread structure.
The needle cylinder 6 is used for storing powder, and in operation, the powder outlet pipe 10 of the needle cylinder 6 is arranged on other mechanisms of the additive manufacturing equipment and is in an upright or downward inclined state, so that the powder in the powder cylinder smoothly falls under vibration.
When the needle cylinder 6 is disassembled, the pin in the round hole 7 is taken out or the screw is screwed out.
The diameter of the powder outlet pipe 10 is smaller than the diameter of the syringe 6 body. The diameter of the inner wall of the powder outlet pipe 10 is 0.15mm to 0.5mm. The specific dimensions may be any according to the particular needs.
The front cover plate 2 is made of titanium alloy TC4, and the rear cover plate 4 is made of No. 45 stainless steel.
The hollow ultrasonic vibrator has the advantages of simple and reasonable structure, flexible disassembly and assembly, convenience in syringe replacement, capability of avoiding powder pollution caused by using the same syringe, and capability of transmitting ultrasonic vibration to the needle head to the greatest extent, thereby avoiding powder blockage.
The utility model can be used as a part for powder discharge and can be matched with a fixed-point preset device for multi-material additive manufacturing, so that the powder discharge is smoother and more stable.
As described above, the present utility model can be preferably realized.
The embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the utility model should be made and equivalents should be construed as falling within the scope of the utility model.
Claims (9)
1. The hollow ultrasonic vibrator for the additive manufacturing device is characterized by comprising a hollow bolt (8) and a needle cylinder (6) sleeved inside the hollow bolt (8); the needle cylinder (6) is used for storing powder;
the middle part of the body of the hollow bolt (8) is sleeved with a plurality of piezoelectric ceramic plates (3), and electrodes (5) are arranged between each piezoelectric ceramic plate (3);
the piezoelectric ceramic plate (3) is clamped by the front cover plate (2) and the rear cover plate (4) and is fixed on the body of the hollow bolt (8) by the front cover plate and the rear cover plate.
2. Hollow ultrasonic vibrator for additive manufacturing devices according to claim 1, characterized in that between the piezoelectric ceramic plate (3) and the outer circumferential surface of the hollow bolt (8) an insulating protective sleeve (9) is arranged; the insulating protective sleeve (9) is used as an insulating structure between the piezoelectric ceramic piece (3) and the hollow bolt (8).
3. Hollow ultrasound vibrator for additive manufacturing devices according to claim 2, characterized in that the electrodes (5) are connected to an external power source for providing electrical energy to the piezo-ceramic sheet (3) for conversion from electrical energy into mechanical vibrations.
4. Hollow ultrasonic vibrator for additive manufacturing devices according to claim 2, characterized in that the end of the front cover plate (2) of the hollow bolt (8) is screwed to the clamping block (1).
5. Hollow ultrasonic vibrator for additive manufacturing devices according to claim 4, characterized in that the end of the needle cylinder (6) is a powder outlet tube (10); a powder outlet pipe channel for passing through the powder outlet pipe (10) is arranged on the clamping block (1);
a round hole (7) is also formed in the clamping block (1) along the vertical direction of the powder outlet pipe channel;
the round hole (7) is screwed into the screw and is used for propping up the powder outlet pipe (10) to prevent the needle cylinder (6) from shifting or loosening.
6. Hollow ultrasonic vibrator for an additive manufacturing device according to claim 5, characterized in that the inner wall of the round hole (7) adopts a screw structure when the round hole (7) is screwed into a screw.
7. A hollow ultrasound vibrator for additive manufacturing apparatus according to claim 3, characterized in that when the number of electrodes (5) is three, the middle one is the positive electrode and the remaining two are the negative electrodes.
8. Hollow ultrasonic vibrator for additive manufacturing devices according to claim 5, characterized in that the diameter of the outlet tube (10) is < the diameter of the cylinder (6) body.
9. Hollow ultrasonic vibrator for additive manufacturing devices according to claim 8, characterized in that the diameter of the inner wall of the powder outlet tube (10) is 0.15mm to 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321437000.9U CN220373919U (en) | 2023-06-07 | 2023-06-07 | Hollow ultrasonic vibrator for additive manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321437000.9U CN220373919U (en) | 2023-06-07 | 2023-06-07 | Hollow ultrasonic vibrator for additive manufacturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220373919U true CN220373919U (en) | 2024-01-23 |
Family
ID=89566832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321437000.9U Active CN220373919U (en) | 2023-06-07 | 2023-06-07 | Hollow ultrasonic vibrator for additive manufacturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220373919U (en) |
-
2023
- 2023-06-07 CN CN202321437000.9U patent/CN220373919U/en active Active
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