CN112872851A - Auxiliary supporting vibration suppression device for milling of thin-wall curved surface part - Google Patents
Auxiliary supporting vibration suppression device for milling of thin-wall curved surface part Download PDFInfo
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- CN112872851A CN112872851A CN202110014112.2A CN202110014112A CN112872851A CN 112872851 A CN112872851 A CN 112872851A CN 202110014112 A CN202110014112 A CN 202110014112A CN 112872851 A CN112872851 A CN 112872851A
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- supporting
- thin
- curved surface
- milling
- wall curved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to an auxiliary support vibration suppression device for milling of thin-wall curved surface parts. The base is fixed on two sides of the thin-wall curved surface part through base bolts, the bottom of an adjusting screw rod is placed in a groove reserved in the base, an adjusting block penetrates through a supporting plate and the adjusting screw rod and is controlled to move up and down by screwing the adjusting screw rod, a supporting bolt penetrates through a horizontal threaded hole of the adjusting block, a rubber head is sleeved on the head of the supporting bolt, and the supporting bolt is adjusted to be pushed to the surface of the thin-wall curved surface part by screwing the supporting bolt and is screwed and fixed. The device improves the rigidity of the thin-wall curved surface, and is not easy to deform in milling, thereby playing a role in milling and vibration suppression.
Description
Technical Field
The invention relates to the field of milling, in particular to an auxiliary supporting and vibration-suppressing device for a thin-wall curved surface part.
Background
When the thin-wall curved surface part is milled, the part is easy to deform in the machining process due to the thin-wall characteristic of the part, and further the flutter phenomenon is generated, so that the machining process is unstable, and the machining quality and the machining efficiency of the part are influenced.
Document 2 "a. matsubara, y. taniyama, j. wang, d. kono. design of a support system with a pivot mechanism for supporting vibrations in the wall milling. cirp Annals-Manufacturing Technology,2017,66, 381-384" discloses a method of damping a pivot support by using a pivot mechanism against a workpiece to thereby improve the rigidity of the workpiece to further damp vibrations. However, the method can only be fixed at the same height position, the fixed position cannot be adjusted up and down, and the method is only suitable for thin-wall straight plate parts.
Typical features of the above documents are: when the thin-wall part is milled and damped, the designed device is only suitable for straight plate parts, the fixed position of the device is not adjustable, and the damping of the curved-surface thin-wall part cannot be well damped.
Disclosure of Invention
Technical problem to be solved
The invention provides an auxiliary supporting and vibration suppressing device for a curved surface thin-wall part, aiming at overcoming the defects of the prior art and solving the problem that the curved surface thin-wall part is easy to vibrate during processing. The method firstly needs to design and manufacture an auxiliary support vibration suppression device, and then the auxiliary support vibration suppression device is placed on two sides of the curved surface thin-wall part to perform auxiliary support and fixation on the thin-wall curved surface part during machining, so that the vibration suppression effect is achieved in the milling process.
Technical scheme
An auxiliary support vibration suppression device for milling of thin-wall curved surface parts is characterized by comprising a base, a base bolt, a support plate, an adjusting screw, an adjusting block, a support bolt and a rubber head, wherein the support plate is vertically fixed on the base and is provided with a plurality of vertical grooves; the adjusting block is provided with a rectangular through groove with the same size as the periphery of the supporting plate, and the adjusting block is sleeved on the supporting plate; the adjusting block is provided with a horizontal threaded hole matched with the supporting bolt and a vertical threaded hole matched with the adjusting screw rod; the width of the vertical groove in the supporting plate is more than or equal to the diameter of the supporting bolt; during the use, fix the base of two auxiliary stay damping devices respectively in the both sides of thin wall curved surface part with the base bolt, place adjusting screw's bottom in the groove that the base was reserved, pass backup pad and adjusting screw and control the up-and-down motion of adjusting block through twisting adjusting screw, penetrate the horizontal screw hole and the vertical groove of adjusting block with a plurality of supporting bolts, overlap the head of supporting bolt with the rubber head, adjust to the surface that pushes up thin wall curved surface part and screw up fixedly through twisting supporting bolt, wherein the coaxial symmetry of supporting bolt of two auxiliary stay damping devices is placed.
Preferably: the base is a cuboid.
Preferably: the groove reserved in the base is a T-shaped groove.
Preferably: the rectangular through groove is positioned at the center of the adjusting block.
Preferably: the central axis of the horizontal threaded hole and the central axis of the vertical groove are on a vertical line.
Preferably: the number of the supporting bolts is 4.
Preferably: the supporting bolts are distributed at equal intervals.
Advantageous effects
The auxiliary supporting vibration suppression device for milling of the thin-wall curved surface part, provided by the invention, has different lengths by adjusting the lengths of a plurality of supporting bolts, can be tightly contacted with the upper curved surface to apply force to the curved surface, and the plurality of supporting bolts are uniformly distributed to ensure that the force applied to the thin-wall curved surface is uniform; the adjusting block can move up and down through the adjusting bolt, the milling part can be accurately and tightly supported, and vibration in the milling process is reduced. The device realizes auxiliary support on the thin-wall curved surface, improves the rigidity of the thin-wall curved surface, and is not easy to deform in milling, thereby playing a role in milling and suppressing vibration. The auxiliary supporting vibration suppression device can obviously reduce sound signals in the machining process and improve the stability of the machining process.
Drawings
FIG. 1 is a schematic structural view of a part of an auxiliary supporting vibration damper;
FIG. 2 is a schematic view of an assembly structure of the auxiliary supporting and vibration suppressing device;
FIG. 3 is a graph of acoustic signals of milling without an auxiliary support vibration suppression device;
FIG. 4 is a graph of the acoustic signals of the milling process with the auxiliary support vibration suppression device,
figure 5 is a graph of the fourier transform of an acoustic signal without an auxiliary support damping device,
FIG. 6 is a Fourier transform of an acoustic signal with an auxiliary support vibration suppression device.
Wherein: 1-base, 2-base bolt, 3-support plate, 4-adjusting screw, 5-adjusting block, 6-support bolt, 7-rubber head, 8-curved surface thin wall part.
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
as shown in figures 1 and 2, the auxiliary supporting vibration suppression device comprises a base 1, a base bolt 2, a supporting plate 3, an adjusting screw rod 4, an adjusting block 5, a supporting bolt 6, a rubber head 7 and a thin-wall curved surface part 8, wherein the size of a rectangular through groove of the adjusting block 5 is equal to that of a peripheral rectangle of the supporting plate 3, the width of a vertical groove in the supporting plate 3 is larger than or equal to the diameter of the supporting bolt 6, the thread of the supporting bolt 6 is matched with a horizontal threaded hole of the adjusting block 5, the thread of the adjusting screw rod 4 is matched with a vertical threaded hole of the adjusting block 5, and the base 1 and the supporting plate 3 are integrated. Fixing the base 1 on two sides of the thin-wall curved surface part 8 by using the base bolt 2, placing the bottom of the adjusting screw rod 4 in a groove reserved in the base 1, enabling the adjusting block 5 to penetrate through the supporting plate 3 and the adjusting screw rod 4 and controlling the up-and-down movement of the adjusting block by screwing the adjusting screw rod 4, enabling the supporting bolt 6 to penetrate into a horizontal threaded hole of the adjusting block 5, sleeving the head of the supporting bolt 6 with the rubber head 7, adjusting to be pushed to the surface of the thin-wall curved surface part 8 by screwing the supporting bolt 6 and screwing and fixing.
The working principle of the auxiliary supporting vibration suppression device is as follows: after the base 1 and the supporting plate 3 are fixed, the up-and-down movement of the adjusting block 5 is controlled through the adjusting screw rod 4, the thin-wall curved surface part 8 is tightly propped through the supporting bolt 6 with the rubber head 7, the rigidity of the thin-wall curved surface is improved, the thin-wall curved surface part is not easy to deform in milling, and therefore the milling vibration suppression effect is achieved.
The method for damping the curved surface thin-wall part by using the auxiliary supporting and damping device comprises the following steps:
step one, fixing a thin-wall curved surface part 8 on a machine tool, and fixing a base 1 on two sides of the thin-wall curved surface part 8 by using base bolts 2;
secondly, placing the bottom of the adjusting screw rod 4 in a groove reserved in the base 1;
thirdly, the adjusting block 5 penetrates through the supporting plate 3 and the adjusting screw rod 4, and the height of the adjusting block 5 is controlled by screwing the adjusting screw rod 4;
fourthly, penetrating the supporting bolt 6 into a horizontal threaded hole of the adjusting block 5;
step five, sleeving the rubber head 7 on the head of the support bolt 6;
and sixthly, screwing the supporting bolt 6 to the surface of the thin-wall curved surface part 8, and screwing and fixing to realize milling vibration suppression.
As shown in fig. 1 and 2, the auxiliary supporting and vibration suppressing device designed by the invention can be seen.
As shown in fig. 3 and 4, the milling vibration suppression effect of the present invention can be seen, and the sound signal is significantly reduced after the auxiliary support vibration suppression device provided by the present invention is used.
As shown in fig. 5 and fig. 6, the milling vibration suppression effect of the present invention can be seen, and when the auxiliary support vibration suppression device proposed by the present invention is not used, the flutter frequency appears in the fourier transform signal of the sound; after the auxiliary supporting vibration suppression device provided by the invention is used, no flutter frequency occurs in Fourier transform signals of sound.
Claims (7)
1. An auxiliary supporting vibration suppression device for milling of thin-wall curved surface parts is characterized by comprising a base (1), base bolts (2), a supporting plate (3), an adjusting screw (4), an adjusting block (5), a supporting bolt (6) and a rubber head (7), wherein the supporting plate (3) is vertically fixed on the base (1), and a plurality of vertical grooves are formed in the supporting plate (3); the adjusting block (5) is provided with a rectangular through groove with the same peripheral size as that of the supporting plate (3), and the adjusting block (5) is sleeved on the supporting plate (3); the adjusting block (5) is provided with a horizontal threaded hole matched with the supporting bolt (6) and a vertical threaded hole matched with the adjusting screw rod (4); the width of the vertical groove in the support plate (3) is more than or equal to the diameter of the support bolt (6); during the use, base (1) of two auxiliary support vibration suppression devices are respectively fixed on two sides of a thin-wall curved part by base bolts (2), the bottom of an adjusting screw rod (4) is placed in a groove reserved in the base (1), an adjusting block (5) penetrates through a supporting plate (3) and the adjusting screw rod (4) and controls the adjusting block (5) to move up and down by screwing the adjusting screw rod (4), a plurality of supporting bolts (6) penetrate into a horizontal threaded hole and a vertical groove of the adjusting block (5), a rubber head (7) is sleeved on the head of the supporting bolt (6), the supporting bolts (6) are adjusted to be pushed to the surface of the thin-wall curved part and screwed and fixed, and the supporting bolts (6) of the two auxiliary support vibration suppression devices are coaxially and symmetrically placed.
2. The auxiliary supporting and vibration suppressing device for milling of the thin-wall curved surface part is characterized in that the base (1) is a cuboid.
3. The auxiliary supporting and vibration damping device for milling of the thin-wall curved surface part as claimed in claim 1, wherein the reserved groove of the base (1) is a T-shaped groove.
4. The auxiliary supporting and vibration damping device for milling of the thin-wall curved surface part as claimed in claim 1, wherein the rectangular through groove is located at the center of the adjusting block (5).
5. The auxiliary supporting and vibration damping device for milling of the thin-wall curved surface part as claimed in claim 1, wherein the central axis of the horizontal threaded hole is on a vertical line with the central axis of the vertical slot.
6. The auxiliary supporting and vibration damping device for milling of the thin-wall curved surface part as claimed in claim 1, wherein the number of the supporting bolts (6) is 4.
7. The auxiliary supporting and vibration damping device for milling of the thin-wall curved surface part as claimed in claim 1, wherein the supporting bolts are distributed at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110014112.2A CN112872851B (en) | 2021-01-06 | 2021-01-06 | Auxiliary supporting vibration suppression device for milling of thin-wall curved surface part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110014112.2A CN112872851B (en) | 2021-01-06 | 2021-01-06 | Auxiliary supporting vibration suppression device for milling of thin-wall curved surface part |
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| CN112872851A true CN112872851A (en) | 2021-06-01 |
| CN112872851B CN112872851B (en) | 2022-08-30 |
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| CN202110014112.2A Active CN112872851B (en) | 2021-01-06 | 2021-01-06 | Auxiliary supporting vibration suppression device for milling of thin-wall curved surface part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290096A (en) * | 2021-12-31 | 2022-04-08 | 枣庄北航机床创新研究院有限公司 | Flexible clamp for blade machining and clamping method |
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Cited By (2)
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| CN114290096A (en) * | 2021-12-31 | 2022-04-08 | 枣庄北航机床创新研究院有限公司 | Flexible clamp for blade machining and clamping method |
| CN114290096B (en) * | 2021-12-31 | 2023-05-05 | 枣庄北航机床创新研究院有限公司 | Flexible clamp for blade machining and clamping method |
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| Publication number | Publication date |
|---|---|
| CN112872851B (en) | 2022-08-30 |
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