CN112025397A - Noise-reduction sound-insulation protective device for numerical control machine tool - Google Patents
Noise-reduction sound-insulation protective device for numerical control machine tool Download PDFInfo
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- CN112025397A CN112025397A CN202010964507.4A CN202010964507A CN112025397A CN 112025397 A CN112025397 A CN 112025397A CN 202010964507 A CN202010964507 A CN 202010964507A CN 112025397 A CN112025397 A CN 112025397A
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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
- 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
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0096—Safety devices protecting the operator, e.g. against accident or noise protecting against noise
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Abstract
The invention relates to the technical field of numerical control machines, in particular to a noise-reducing and sound-insulating protective device for a numerical control machine. It includes digit control machine tool and the noise insulation of setting in digit control machine tool bottom, and noise insulation includes the protection base at least, and the cavity of making an uproar falls has been seted up at the top of protection base, and the slide opening has been seted up at protection base top, and the shell setting that sinks is in the inside of the cavity of making an uproar that falls, and the shell and digit control machine tool swing joint sink, and a plurality of second through-holes have been seted up to the lateral wall all around of the shell that sinks, and the second through-hole is used for spreading the noise in the shell that sinks to fall the cavity. According to the invention, the spring is deformed to generate an elastic force to offset part of the vibration force, so that the outer box of the numerical control machine tool is prevented from deforming due to long-time severe vibration, and the phenomenon that the paint surface of the outer box falls off due to severe vibration to cause the internal material to be in contact with the external air, oxidized and rusted is avoided, so that the purpose of prolonging the service life of the numerical control machine tool is achieved.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a noise-reducing and sound-insulating protective device for a numerical control machine.
Background
The numerical control machine tool sends various control signals through operation processing by the numerical control device to control the action of the machine tool, and parts are automatically machined according to the shape and the size required by a drawing.
The inside motor of general digit control machine tool all installs in the bottom of outer container, therefore the motor is in the course of the work because the high-speed rotation of inside rotor produces the vibration, the bottom of vibration back outer container produces very big noise, the noise is to the damage that causes of people's eardrum to threaten the healthy of people, the outer container receives also can take place to warp for a long time violent vibration simultaneously, and drop of lacquer painting, and then makes its oxidation, life greatly reduced.
Disclosure of Invention
The invention aims to provide a noise-reducing and sound-insulating protective device for a numerical control machine tool, which aims to solve the problems in the background technology.
In order to achieve the above object, the present invention provides a noise-reducing and sound-insulating protective device for a numerical control machine, comprising a numerical control machine and a sound-insulating device disposed at the bottom of the numerical control machine, wherein the sound-insulating device at least comprises:
the noise reduction device comprises a protection base, a noise reduction cavity and a sliding hole, wherein the top of the protection base is provided with the noise reduction cavity;
the sinking shell is arranged inside the noise reduction cavity and is movably connected with the numerical control machine tool, a plurality of second through holes are formed in the peripheral side wall of the sinking shell, the second through holes are used for transmitting noise in the sinking shell into the noise reduction cavity, and a plurality of through grooves are formed in the bottom of the sinking shell;
the vibration damping device comprises a noise reduction sleeve, the top of the noise reduction sleeve is communicated with the through groove, the bottom of the noise reduction sleeve is connected with a sliding rod in a sliding mode, a top supporting plate and a bottom supporting plate are respectively arranged at the top of the noise reduction sleeve and the bottom of the sliding rod, a spring is arranged between the top supporting plate and the bottom supporting plate, a first noise reduction cavity and a second noise reduction cavity are formed in the noise reduction sleeve from outside to inside, a noise reduction pad is arranged in the first noise reduction cavity, foam is filled in the noise reduction pad, the noise reduction pad is used for blocking transmission of partial noise, a noise reduction plate is arranged in the second noise reduction cavity, and a plurality of third through holes are formed in the periphery of the noise reduction plate;
the supporting plate is arranged around the top of the sinking shell, a second inserting rod is arranged at the bottom of the supporting plate and movably connected with the sliding hole, an air cushion is arranged between the supporting plate and the protective base, a first inserting hole is formed in the top of the air cushion, and the first inserting hole is in inserting fit with the second inserting rod.
As a further improvement of the technical scheme, a position of the numerical control machine close to the bottom is provided with a limiting plate, and the distance between the limiting plate and the bottom surface of the numerical control machine is smaller than the height of the sinking shell.
As a further improvement of the technical scheme, the rotating grooves are formed in the tops of the four corners of the limiting plate, rotating rods are connected to the rotating grooves in a rotating mode, and the top of each rotating rod is provided with an annular sleeve.
As a further improvement of the technical scheme, a first inserting rod is arranged at the bottom of the limiting plate, a third inserting hole is formed in the top of the noise reduction cavity, a gasket is arranged between the limiting plate and the noise reduction cavity, a second inserting hole is formed in the top of the gasket, and the first inserting rod is in inserting fit with the second inserting hole and the third inserting hole.
As the further improvement of this technical scheme, four corners at digit control machine tool top are equipped with the protection piece, the right-angle side of protection piece is the cambered surface, and protection piece 120 is natural rubber, protects the turning at digit control machine tool top through the elasticity of natural rubber self and cambered surface, avoids causing the damage with external collision.
It is worth to say that the natural rubber is a natural high molecular compound which takes cis-1, 4-polyisoprene as a main component, 91-94% of the natural rubber is rubber hydrocarbon, and the rest is non-rubber substances such as protein, fatty acid, ash, saccharide and the like.
As a further improvement of the technical scheme, a sound insulation cavity is formed in the protective base, and the sound insulation cavity is in a vacuum state.
As a further improvement of the technical scheme, the bottom of the protective base is provided with a non-slip mat, the ground of the non-slip mat is provided with a plurality of strip-shaped grains, and the non-slip mat is used for increasing the friction force between the protective base and the ground.
As a further improvement of the technical scheme, the periphery of the protective base is protruded outwards.
As a further improvement of the technical scheme, the through groove is internally provided with a noise reduction block, the top of the noise reduction block is annularly provided with a plurality of first through holes, and the first through holes are used for absorbing partial noise.
As a further improvement of the technical scheme, the top of the through groove is provided with a filter screen.
Compared with the prior art, the invention has the beneficial effects that:
1. in this make an uproar syllable-dividing protector for digit control machine tool falls, can improve the bottom noise reduction effect to the shell that sinks through falling the board of making an uproar and falling the dual absorption of making an uproar pad, the frequency of noise reduction transmission, and then reduce the damage to the eardrum.
2. Among this noise reduction and sound insulation protector for digit control machine tool, the spring deformation through setting up produces the spring action and offsets partial vibrational force, realizes reducing the purpose of vibration to avoid leading to the outer container of digit control machine tool to take place to warp because of long-time violent vibration, avoid violent vibration to make the lacquer painting of outer container take place to drop simultaneously, lead to inside material and outside air contact oxidation to rust, in order to reach extension digit control machine tool life's purpose.
3. Among this make an uproar syllable-dividing protector for digit control machine tool falls, the top surface through the air cushion that sets up and protection base closely laminates to seal the junction of backup pad and protection base, the elastic action of air cushion self can play certain damping effect simultaneously, and reduced the propagation way of making an uproar cavity internal noise after the sealing, and then played certain syllable-dividing effect.
4. Among this make an uproar syllable-dividing protector for digit control machine tool that falls, through the syllable-dividing cavity that sets up, the inside vacuum state that is of syllable-dividing cavity utilizes the principle that sound can't propagate under vacuum state, realizes the isolation to the most noise in digit control machine tool bottom.
5. Among this make an uproar syllable-dividing protector for digit control machine tool falls, the effect of the elastic effect of gasket self through setting up plays the effect of protection to limiting plate and backup pad contact surface.
Drawings
FIG. 1 is a schematic view of the entire structure of embodiment 1;
FIG. 2 is an exploded view of the whole structure of embodiment 1;
FIG. 3 is an exploded view of the structure of the sound-proofing device of example 1;
FIG. 4 is a first schematic view of the sinking shell structure of embodiment 1;
FIG. 5 is a sectional view of the shield base structure of embodiment 1;
FIG. 6 is a schematic view of the structure of the air mattress of embodiment 1;
FIG. 7 is a second schematic view of the structure of the sinking shell of example 1;
fig. 8 is a disassembled view of the noise reducing block structure of embodiment 1;
FIG. 9 is an exploded view of the structure of a vibration damper according to embodiment 1;
FIG. 10 is an exploded view of the noise reducing sleeve structure of example 1;
fig. 11 is a structural sectional view of a noise reduction sleeve of embodiment 1;
fig. 12 is a schematic view of a noise reduction plate structure of embodiment 1;
FIG. 13 is a structural sectional view of the soundproof device according to the embodiment 1;
FIG. 14 is a schematic view of a gasket structure according to embodiment 1;
FIG. 15 is a schematic view of the configuration of a numerically controlled machine tool according to embodiment 1;
fig. 16 is a schematic diagram of a limiting plate structure in embodiment 1.
The various reference numbers in the figures mean:
100. a numerical control machine tool;
110. a limiting plate;
111. a first plug-in rod;
112. a rotating groove;
113. an annular sleeve; 1131. rotating the rod;
120. a protection block;
200. a sound-proofing device;
210. a protective base;
211. a noise reduction cavity;
212. an air cushion; 2121. a first plug hole;
213. a sound-insulating cavity;
214. a slide hole;
215. a non-slip mat;
220. sinking the shell;
221. a support plate; 2211. a gasket; 2212. a second plug hole; 2213. a second plug-in rod; 2214. a third plug hole;
222. a through groove; 2221. filtering with a screen;
223. a noise reduction block; 2231. a first through hole;
224. a second through hole;
230. a vibration damping device;
231. a noise reduction sleeve; 2311. a top support disk; 2312. a first noise reduction cavity; 2313. a second noise reduction cavity;
232. a spring;
233. a slide bar; 2331. a bottom support disk;
234. a noise reduction plate; 2341. a third through hole;
235. a noise reduction pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
The invention provides a noise-reducing and sound-insulating protective device for a numerical control machine tool, and referring to fig. 1 to 16, the noise-reducing and sound-insulating protective device comprises a numerical control machine tool 100 and a sound-insulating device 200 arranged at the bottom of the numerical control machine tool 100, the sound-insulating device 200 at least comprises a protective base 210, a noise-reducing cavity 211 is formed in the top of the protective base 210, a slide hole 214 is formed in the top of the protective base 210, a sinking shell 220 is arranged inside the noise-reducing cavity 211, the sinking shell 220 is movably connected with the numerical control machine tool 100, the sinking shell 220 is used for placing the numerical control machine tool 100, a plurality of second through holes 224 are formed in the peripheral side wall of the sinking shell 220, the second through holes 224 are used for transmitting noise in the sinking.
The supporting plate 221 is disposed around the top of the sinking casing 220, the bottom of the supporting plate 221 is provided with a second inserting rod 2213, the second inserting rod 2213 is movably connected with the sliding hole 214, an air cushion 212 is disposed between the supporting plate 221 and the protection base 210, the top of the air cushion 212 is provided with a first inserting hole 2121, the first inserting hole 2121 is inserted into the second inserting rod 2213, so that the first inserting hole 2121 is limited by the resistance of the second inserting rod 2213, and the air cushion 212 is prevented from shifting in the using process.
When the sinking shell 220 is used specifically in this embodiment, the sinking shell 220 is placed in the noise reduction cavity 211, then the second inserting rod 2213 at the bottom of the supporting plate 221 is inserted into the sliding hole 214 under the action of gravity of the sinking shell 220 and penetrates through the first inserting hole 2121, at this time, the first inserting hole 2121 is limited by the resistance of the second inserting rod 2213 to the air cushion 212, then the air cushion 212 is pressed by the supporting plate 221 and tightly attached to the top surface of the protection base 210, so that the joint of the supporting plate 221 and the protection base 210 is sealed, and meanwhile, the elastic action of the air cushion 212 can play a certain role in vibration reduction.
In the noise transmission process, the bottom of the numerical control machine 100 enters the sinking shell 220, the second through hole 224 of the sinking shell 220 enters the noise reduction cavity 211, and meanwhile, the second through hole 224 absorbs partial noise, and the air cushion 212 seals the joint of the supporting plate 221 and the protective base 210, so that the transmission path of the noise in the noise reduction cavity 211 is reduced, and a certain sound insulation effect is achieved.
Further, the vibration reduction device 230 includes a noise reduction sleeve 231, the top of the noise reduction sleeve 231 is communicated with the through groove 222, the bottom of the noise reduction sleeve 231 is slidably connected with a slide bar 233, the top of the noise reduction sleeve 231 and the bottom of the slide bar 233 are respectively provided with a top supporting plate 2311 and a bottom supporting plate 2331, a spring 232 is arranged between the top supporting plate 2311 and the bottom supporting plate 2331, the top end and the bottom end of the spring 232 are respectively fixedly connected with the top supporting plate 2311 and the bottom supporting plate 2331, a first noise reduction cavity 2312 and a second noise reduction cavity 2313 are formed in the noise reduction sleeve 231 from outside to inside, a noise reduction pad 235 is arranged in the first noise reduction cavity 2312, foam is filled in the noise reduction pad 235, the noise reduction pad 235 is used for blocking transmission of partial noise, a noise reduction plate 234 is arranged in the second noise reduction cavity 2313, and a.
In this embodiment, the damping device 230 is divided into the following two stages:
a vibration reduction stage:
digit control machine tool 100 vibrates in the shell 220 that sinks, the vibrational force drives the shell 220 that sinks and does the synchronous vibration with digit control machine tool 100, then digit control machine tool 100 drives through top supporting disk 2311 and falls the sleeve 231 of making an uproar and slide along slide bar 233 outer wall, and make spring 232 take place deformation through top supporting disk 2311 and bottom supporting disk 2331, produce the elastic force effect after spring 232 deformation, the elastic force effect offsets partial vibrational force, in order to reach the purpose that reduces the vibration, thereby avoid leading to digit control machine tool 100's outer container to take place to warp because of long-time violent vibration, avoid the paint surface of violent vibration messenger's outer container to take place to drop simultaneously, lead to inside material and outside air contact oxidation rust, in order to reach extension digit control.
And a noise reduction stage:
the noise that sinks shell 220 bottom enters into through leading to groove 222 and falls the sleeve 231 of making an uproar, then the first inner wall of making an uproar chamber 2312 and the second fall and fall the chamber 2313 of making an uproar carries out preliminary isolation to the noise, the first chamber 2312 of making an uproar of falling absorbs part of the noise through falling the third through hole 2341 on the board 234 of making an uproar simultaneously, do not have the absorptive noise to get into the second and fall the chamber 2313 of making an uproar, the second falls the chamber 2313 of making an uproar and separates and absorb part of the noise through falling the inside foam of pad 235 of making an uproar, thereby can improve the noise reduction effect to sinking shell 220 bottom through dual absorption, the frequency of.
In this embodiment, the position of digit control machine tool 100 near the bottom is equipped with limiting plate 110, and the distance of limiting plate 110 apart from digit control machine tool 100 bottom surface is less than the height of sinking shell 220 to avoid digit control machine tool 100 and the inner wall contact of sinking shell 220, make digit control machine tool 100 and sink and form the propagation cavity of an air between the shell 220, and then the propagation speed of noise reduction.
Further, the top at four turnings of limiting plate 110 has been seted up and has been rotated groove 112, rotates the inslot 112 internal rotation and is connected with dwang 1131, and the top of dwang 1131 is equipped with annular sleeve 113, and annular sleeve 113 provides the stress point for installing digit control machine tool 100 to change the direction of force through the pivoted mode.
Further, the bottom of limiting plate 110 is equipped with first plug rod 111, third plug hole 2214 has been seted up at the top of cavity 211 of making an uproar, be equipped with gasket 2211 between limiting plate 110 and the cavity 211 of making an uproar, second plug hole 2212 has been seted up at the top of gasket 2211, first plug rod 111 is pegged graft the cooperation with second plug hole 2212 and third plug hole 2214, first plug rod 111 of limiting plate 110 bottom receives the action of gravity of digit control machine tool 100 self and inserts in three plug hole 2214, and run through second plug hole 2212, second plug hole 2212 receives the effect of first plug rod 111 resistance to carry out spacing to gasket 2211, thereby play the effect of protection to limiting plate 110 and backup pad 221 contact surface through the elastic effect of gasket 2211 self.
Specifically, four corners at digit control machine tool 100 top are equipped with protection piece 120, and the right-angle side of protection piece 120 is the cambered surface, and protection piece 120 is natural rubber, protects the turning at digit control machine tool 100 top through the elasticity and the cambered surface of natural rubber self, avoids causing the damage with external collision.
It is to be noted that Natural Rubber (NR) is a natural polymer compound containing cis-1, 4-polyisoprene as a main component, 91 to 94% of which is rubber hydrocarbon (cis-1, 4-polyisoprene), and the balance is non-rubber substances such as protein, fatty acid, ash, saccharides and the like.
In addition, the sound insulation cavity 213 is formed in the protective base 210, the sound insulation cavity 213 is in a vacuum state, and sound cannot be transmitted in the vacuum state, so that most of noise at the bottom of the numerical control machine tool 100 is isolated through the sound insulation cavity 213 in the vacuum state.
In addition, the bottom of the protection base 210 is provided with the anti-slip pad 215, the ground of the anti-slip pad 215 is provided with a plurality of strip-shaped grains, and the anti-slip pad 215 is used for increasing the friction force between the protection base 210 and the ground, so that the protection base 210 is prevented from sliding.
Further, the periphery of the protection base 210 protrudes outwards, so that the top of the protection base 210 can be prevented from being collided in the carrying process of the numerical control machine tool 100, the top of the numerical control machine tool 100 is prevented from being damaged, and the purpose of protection is achieved.
Still further, the through groove 222 is internally provided with the noise reduction block 223, the top of the noise reduction block 223 is annularly provided with a plurality of first through holes 2231, and the first through holes 2231 are used for absorbing partial noise, so that the noise is further reduced on the basis of reducing the noise of the noise reduction sleeve 231.
In addition, a screen 2221 is disposed on the top of the through slot 222, and the screen 2221 can prevent particles from entering the through slot 222 to block the first through hole 2231.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a noise reduction and sound insulation protector for digit control machine tool, includes digit control machine tool (100) and sets up noise insulation (200) in digit control machine tool (100) bottom, its characterized in that: the acoustic baffle device (200) comprises at least:
the noise reduction device comprises a protective base (210), wherein a noise reduction cavity (211) is formed in the top of the protective base (210), and a sliding hole (214) is formed in the top of the protective base (210);
the sinking shell (220) is arranged inside the noise reduction cavity (211), the sinking shell (220) is movably connected with the numerical control machine tool (100), a plurality of second through holes (224) are formed in the peripheral side wall of the sinking shell (220), the second through holes (224) are used for transmitting noise in the sinking shell (220) to the noise reduction cavity (211), and a plurality of through grooves (222) are formed in the bottom of the sinking shell (220);
the vibration damping device (230) comprises a noise reduction sleeve (231), the top of the noise reduction sleeve (231) is communicated with the through groove (222), the bottom of the noise reduction sleeve (231) is slidably connected with a sliding rod (233), the top of the noise reduction sleeve (231) and the bottom of the sliding rod (233) are respectively provided with a top supporting plate (2311) and a bottom supporting plate (2331), a spring (232) is arranged between the top supporting plate (2311) and the bottom supporting plate (2331), a first noise reduction cavity (2312) and a second noise reduction cavity (2313) are formed in the noise reduction sleeve (231) from outside to inside, a noise reduction pad (235) is arranged in the first noise reduction cavity (2312), foam is filled in the noise reduction pad (235), the noise reduction pad (235) is used for blocking transmission of partial noise, and a noise reduction plate (234) is arranged in the second noise reduction cavity (2313), a plurality of third through holes (2341) are formed in the periphery of the noise reduction plate (234);
the supporting plate (221), the supporting plate (221) is arranged around the top of the sinking shell (220), a second inserting rod (2213) is arranged at the bottom of the supporting plate (221), the second inserting rod (2213) is movably connected with the sliding hole (214), an air cushion (212) is arranged between the supporting plate (221) and the protective base (210), a first inserting hole (2121) is formed in the top of the air cushion (212), and the first inserting hole (2121) is in inserting fit with the second inserting rod (2213).
2. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 1, characterized in that: the position that digit control machine tool (100) is close to the bottom is equipped with limiting plate (110), limiting plate (110) apart from the distance of digit control machine tool (100) bottom surface is less than sink the height of shell (220).
3. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 2, characterized in that: rotation groove (112) have been seted up at the top at four corners of limiting plate (110), rotation groove (112) internal rotation is connected with dwang (1131), the top of dwang (1131) is equipped with annular cover (113).
4. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 3, characterized in that: the noise reduction device is characterized in that a first plug-in rod (111) is arranged at the bottom of the limiting plate (110), a third plug-in hole (2214) is formed in the top of the noise reduction cavity (211), a gasket (2211) is arranged between the limiting plate (110) and the noise reduction cavity (211), a second plug-in hole (2212) is formed in the top of the gasket (2211), and the first plug-in rod (111) is in plug-in fit with the second plug-in hole (2212) and the third plug-in hole (2214).
5. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 2, characterized in that: four corners at the top of the numerical control machine tool (100) are provided with protective blocks (120), and the right-angle edges of the protective blocks (120) are cambered surfaces.
6. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 1, characterized in that: a sound insulation cavity (213) is formed in the protective base (210), and the sound insulation cavity (213) is in a vacuum state.
7. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 6, wherein: the anti-slip mat is characterized in that an anti-slip mat (215) is arranged at the bottom of the protection base (210), a plurality of strip-shaped grains are formed in the ground of the anti-slip mat (215), and the anti-slip mat (215) is used for increasing the friction force of the protection base (210) contacting with the ground.
8. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 7, wherein: the periphery of the protective base (210) protrudes outwards.
9. The noise-reducing and sound-insulating protective device for the numerical control machine tool according to claim 1, characterized in that: the noise reduction block (223) is arranged in the through groove (222), a plurality of first through holes (2231) are annularly formed in the top of the noise reduction block (223), and the first through holes (2231) are used for absorbing partial noise.
10. The noise-reducing and sound-insulating protective device for a numerical control machine tool according to claim 9, characterized in that: the top of the through groove (222) is provided with a filter screen (2221).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964507.4A CN112025397B (en) | 2020-09-15 | 2020-09-15 | Noise-reduction sound-insulation protective device for numerical control machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964507.4A CN112025397B (en) | 2020-09-15 | 2020-09-15 | Noise-reduction sound-insulation protective device for numerical control machine tool |
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| CN112025397A true CN112025397A (en) | 2020-12-04 |
| CN112025397B CN112025397B (en) | 2021-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115360621A (en) * | 2022-09-01 | 2022-11-18 | 南通莱隆电器成套设备有限公司 | Transformer substation with sound insulation and noise reduction functions |
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| CN112025397B (en) | 2021-10-22 |
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