CN209886704U - Noise reduction numerical control lathe is with portable guard gate - Google Patents
Noise reduction numerical control lathe is with portable guard gate Download PDFInfo
- Publication number
- CN209886704U CN209886704U CN201920404050.4U CN201920404050U CN209886704U CN 209886704 U CN209886704 U CN 209886704U CN 201920404050 U CN201920404050 U CN 201920404050U CN 209886704 U CN209886704 U CN 209886704U
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- Prior art keywords
- noise
- rear end
- toughened glass
- connecting rod
- fixed connection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000005341 toughened glass Substances 0.000 claims abstract description 42
- 229920000742 Cotton Polymers 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 33
- 238000005452 bending Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 5
- 244000309464 bull Species 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- -1 brush piece Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model discloses a noise reduction numerical control is portable guard gate for lathe, its structure includes the guard gate main part, the doorknob, the slider, the spout, a slide rail, the round bar, noise reduction device and defogging device, the utility model discloses a noise reduction numerical control is portable guard gate for lathe, noise reduction device design is proposed in this design, the lathe has been solved and has produced great noise at the during operation, can influence the problem of staff's hearing for a long time, the sealing washer will and numerical control technique between the space fill up, the noise passes in the inner plate body enters into the guard gate main part, most noise is blocked by inside soundproof cotton, first toughened glass and second toughened glass have pasted the sound-proof membrane simultaneously, can effectually avoid the noise to transmit away from first toughened glass and second toughened glass, reach and can effectually give sound insulation, avoid the beneficial effect that the noise spreads from the door.
Description
Technical Field
The utility model relates to a numerical control lathe technical field, concretely relates to noise reduction numerical control lathe is with portable guard gate.
Background
The numerical control lathe is one of the numerical control machines which are widely used at present, and is mainly used for cutting processing of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces with any taper angle, complex rotary inner and outer curved surfaces, cylinders, conical threads and the like, grooving, drilling, reaming, boring and the like can be carried out, a protective door for the numerical control lathe is important safety protection during processing of the numerical control lathe, the safety of an operator is effectively protected, along with the rapid development of the numerical control lathe, a portable protective door for the numerical control lathe is also technically improved, but in the prior art, the lathe generates large noise during working, the hearing of the operator is influenced for a long time, and mist and dust are easily generated during cutting of the lathe, so that windows are blurred and cannot be seen.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, the portable guard gate for noise reduction numerical control lathe has now been proposed, has solved the lathe and has produced great noise at the during operation, can influence the problem of staff's hearing for a long time, and the lathe cuts and easily produces fog, and the dust leads to the window to obscure the problem of seeing, has reached can effectually give sound insulation, avoids the noise to spread from the door, and is convenient for brush the beneficial effect who removes the fog dust on the window glass.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a noise reduction numerical control is portable guard gate for lathe, including guard gate main part, door knob, slider, spout, slide rail, round bar, noise reduction device and defogging device, the door knob rear end passes through bolt and guard gate main part front end downside fixed connection, the slider top is fixed connection with guard gate main part rear end the most, the spout sets up in guard gate main part bottom, slide rail inboard upper end and slider lower extreme sliding connection, the round bar outside and spout inboard sliding connection, noise reduction device sets up in the guard gate main part, defogging device sets up in noise reduction device rear end, noise reduction device is by inner plate body, soundproof cotton, sealing washer, framework, first toughened glass, soundproof film and second toughened glass, the inner plate body front end periphery passes through bolt and guard gate main part rear end periphery fixed connection, soundproof cotton front end and guard gate main part inside front end fixed connection, the rear end of the soundproof cotton is fixedly connected with the front end of the inner plate body, the inner side of the sealing ring is fixedly connected with the rear end of the outer side of the protective door main body, the outer side of the frame body is fixedly connected with the inner side of the through hole of the front end of the protective door main body, the outer side of the first toughened glass is fixedly connected with the front end of the inner side of the frame body, the front end of the soundproof film is fixedly connected with the rear end of the first toughened glass, the rear end of the soundproof film is fixedly connected with the front end of the second toughened glass, the outer side of the second toughened glass is fixedly connected with the rear end of the inner side of the frame body, the defogging device is composed of a shell, a large gear, a small gear, a rotating handle, a first connecting rod, a second connecting rod, a brush holder and a brush piece, the front end of the shell is fixedly connected with the rear end, pinion right-hand member and gear wheel left end intermeshing, it is connected to change to run through guard gate main part front end and casing rear end and rotate with guard gate main part front end and casing rear end to the rear end, it is connected to change rear end and pinion front end middle part fixed connection, first connecting rod right-hand member rotates with gear wheel rear end right side downside and is connected, first connecting rod left end rotates with second connecting rod right-hand member and is connected, second connecting rod left end rotates with the inside left end of casing and is connected, brush yoke right-hand member front side passes casing rear end left side to brush yoke right-hand member front side and second connecting rod left end rear side fixed connection, brush piece rear end and brush yoke front end fixed connection, the brush piece front end laminates with the second toughened glass rear end each other.
Further, soundproof cotton thickness is 3cm, and the soundproof cotton outside laminates with the guard gate main part is inboard each other.
Furthermore, the first toughened glass and the second toughened glass are pressed into a whole, and the thickness is 2 cm.
Furthermore, the rotating handle is cylindrical, and anti-skid patterns are arranged on the surface exposed outside.
Furthermore, the first connecting rod is J-shaped, and the angle of the bent part of the first connecting rod is 20 degrees.
Furthermore, the brush yoke is rectangular strip, and brush yoke length is shorter than protection door main part width.
Furthermore, the door handle is installed on the protective door main body in an inclined manner, and the outer surface of the door handle is wrapped by a layer of rubber sleeve.
Furthermore, the soundproof cotton is made of polyester fiber cotton.
Furthermore, the brush piece is made of silica gel.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
1) for solving the lathe and producing great noise at the during operation, can influence the problem of staff's hearing for a long time, the design of noise reduction device is proposed, the lathe of having solved produces great noise at the during operation, can influence the problem of staff's hearing for a long time, the sealing washer will with numerical control technique between the space fill up, the noise passes in the inner plate body enters into the guard gate main part, most noise is blocked by inside soundproof cotton, first toughened glass and second toughened glass paste the acoustic celotex membrane simultaneously, can effectually avoid the noise to transmit from first toughened glass and second toughened glass department, reach and effectually give sound insulation, avoid the beneficial effect that the noise spreads from door department.
2) The utility model discloses a window glass, brush piece, window glass, the problem of window blurring, defogging device design is proposed in this design, it easily produces the fog to have solved the lathe and cut, the dust, lead to the problem that the window blurring is seen clearly, clockwise rotation changes, it carries out clockwise rotation to drive the pinion to change, the pinion drives the gear wheel and rotates, it carries out circular arc motion to drive first connecting rod simultaneously, first connecting rod drives the motion of second connecting rod after that, the brush yoke is also along with the motion of second connecting rod, the brush piece scrapes water smoke, reach the beneficial effect of being convenient for with the fog dust brush on the window glass.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic rear view of the present invention;
FIG. 3 is a schematic view of the structure of the noise reduction device of the present invention from the right side;
FIG. 4 is a schematic view of the internal rear view structure of the defogging device of the present invention;
in the figure: the protective door comprises a protective door main body-1, a door handle-2, a sliding block-3, a sliding chute-4, a sliding rail-5, a round rod-6, a noise reduction device-7, a defogging device-8, an inner plate body-71, soundproof cotton-72, a sealing ring-73, a frame body-74, first toughened glass-75, a sound insulation film-76, second toughened glass-77, a shell body-81, a large gear-82, a small gear-83, a rotating handle-84, a first connecting rod-85, a second connecting rod-86, a brush holder-87 and a brush piece-88.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a portable guard gate for a noise reduction numerically controlled lathe: the anti-noise door comprises a protective door main body 1, a door handle 2, a sliding block 3, a sliding groove 4, a sliding rail 5, a round rod 6, a noise reduction device 7 and a defogging device 8, wherein the rear end of the door handle 2 is fixedly connected with the lower side of the front end of the protective door main body 1 through a bolt, the top end of the sliding block 3 is fixedly connected with the uppermost side of the rear end of the protective door main body 1, the sliding groove 4 is arranged at the bottom end of the protective door main body 1, the upper end of the inner side of the sliding rail 5 is slidably connected with the lower end of the sliding block 3, the outer side of the round rod 6 is slidably connected with the inner side of the sliding groove 4, the noise reduction device 7 is arranged in the protective door main body 1, the defogging device 8 is arranged at the rear end of the noise reduction device 7, the noise reduction device 7 comprises an inner plate body 71, soundproof cotton 72, a sealing ring 73, a frame body 74, first toughened glass 75, a soundproof film 76 and, the rear end of the soundproof cotton 72 is fixedly connected with the front end of the inner plate body 71, the inner side of the sealing ring 73 is fixedly connected with the rear end of the outer side of the protective door main body 1, the outer side of the frame body 74 is fixedly connected with the inner side of the through hole of the front end of the protective door main body 1, the outer side of the first toughened glass 75 is fixedly connected with the front end of the inner side of the frame body 74, the front end of the soundproof film 76 is fixedly connected with the rear end of the first toughened glass 75, the rear end of the soundproof film 76 is fixedly connected with the front end of the second toughened glass 77, the outer side of the second toughened glass 77 is fixedly connected with the rear end of the inner side of the frame body 74, the defogging device 8 is composed of a shell 81, a big gear 82, a small gear 83, a rotating handle 84, a first connecting rod 85, a second connecting rod 86, a brush holder 87 and a brush 88, the front end of the shell 81 is fixedly connected, the right end of the pinion 83 is meshed with the left end of the bull gear 82, the rear end of the rotating handle 84 penetrates through the front end of the protective door main body 1 and the rear end of the shell 81 and is rotatably connected with the front end of the protective door main body 1 and the rear end of the shell 81, the rear end of the rotating handle 84 is fixedly connected with the middle part of the front end of the pinion 83, the right end of the first connecting rod 85 is rotatably connected with the lower right side of the rear end of the bull gear 82, the left end of the first connecting rod 85 is rotatably connected with the right end of the second connecting rod 86, the left end of the second connecting rod 86 is rotatably connected with the left end inside the shell 81, the front side of the right end of the brush holder 87 penetrates through the left side of the rear end of the shell 81, the front side of the right end of the brush holder 87 is fixedly connected with the rear side of the left end.
Wherein, soundproof cotton 72 thickness is 3cm, and the soundproof cotton 72 outside laminates with protection door main part 1 is inboard each other, can effectually give sound insulation, avoids producing the noise.
The first toughened glass 75 and the second toughened glass 77 are pressed into a whole, the thickness is 2cm, and the internal running condition of the machine tool can be observed conveniently.
Wherein, it is cylindric to change handle 84, and exposes and be provided with anti-skidding decorative pattern on external surface and can effectual increase frictional force, is convenient for rotate and changes handle 84.
The first connecting rod 85 is J-shaped, and the angle of the bent portion of the first connecting rod 85 is 20 degrees, so that the second connecting rod 86 can be effectively driven to perform circular motion, and the brush holder 87 is driven to rotate.
The brush holder 87 is rectangular and strip-shaped, and the length of the brush holder 87 is shorter than the width of the protective door main body 1, so that the brush holder 87 can effectively swing left and right.
Wherein, the door knob 2 is the slope form and installs on guard gate main part 1, and 2 surface parcel one deck rubber sleeves of door knob, can effectual increase door knob 2's comfort level, and is convenient for pull guard gate main part 1 and removes.
Wherein, soundproof cotton 72 material is polyester fiber cotton, and noise reduction is effectual, and the price is lower.
Wherein, the brush piece 88 material is silica gel, and the wearability is good, has certain pliability.
The soundproof cotton 72 principle that this patent said: the sound generated by the vibration of the object → the sound waves are transmitted in the air → the cotton has a multi-fiber structure → the sound waves are reflected, mutually superposed and collided by countless fibers when passing through the cotton, the energy of the sound waves is converted into heat energy → the intensity of the sound waves is weakened → the sound disappears, the soundproof cotton has another function of heat insulation, the soundproof material can enable the transmitted sound energy to be attenuated to 3/10-4/10 or less of the incident sound energy, and the sound insulation quantity is expressed by a decibel metering method for convenient expression.
The working principle is as follows: firstly, a slide rail 5 is arranged at the top end of a numerical control lathe, a round rod 6 is arranged at the lower side of the front end of the numerical control lathe, then a protective door main body 1 is arranged on the slide rail 5 and the round rod 6, a slide block 3 at the upper end of the protective door main body 1 is clamped in the slide rail 5, a slide groove 4 at the lower end of the protective door main body 1 is clamped on the round rod 6, so that a door handle 2 can be grasped to drive the protective door main body 1 to move left and right on the slide rail 5 and the round rod 6, when the numerical control lathe starts to operate, the protective door main body 1 is closed, a sealing ring 73 on the protective door main body 1 fills a gap between the sealing ring and the numerical control technology, noise generated in the lathe passes through an inner plate body 71 to enter the protective door main body 1, most of the noise is blocked by sound insulation cotton 72 inside, so that the noise is not transmitted, thereby reducing the noise, meanwhile, a sound insulation film 76 is adhered to first toughened glass 75 and a second, during the operation of the numerical control lathe, a worker can observe the internal situation through the first toughened glass 75 and the second toughened glass 77, mist is generated in the lathe to enable the second toughened glass 77 to generate water mist, the rotating handle 84 can rotate clockwise, the rotating handle 84 drives the pinion 83 to rotate clockwise, the bull gear 82 rotates along with the pinion 83 due to mutual meshing of the bull gear 82 and the pinion 83, the first connecting rod 85 is driven to do circular arc motion, the first connecting rod 85 drives the second connecting rod 86 to do motion, the brush holder 87 also moves along with the second connecting rod 86, the water mist on the second toughened glass 77 is scraped through the brush piece 88 on the brush holder 87, the design provides the noise reduction device 7, the problem that the lathe generates high noise during operation and affects the hearing of the worker for a long time is solved, the sealing ring 73 fills up a gap between the numerical control technology, the noise passes through the inner plate body 71 and enters the protective door main body 1, most of noise is blocked by the sound insulation cotton 72 inside, meanwhile, the sound insulation film 76 is pasted on the first toughened glass 75 and the second toughened glass 77, noise can be effectively prevented from being transmitted from the first toughened glass 75 and the second toughened glass 77, sound insulation can be effectively achieved, and the beneficial effect of preventing the noise from being transmitted from a door is achieved. Then the first connecting rod 85 drives the second connecting rod 86 to move, the brush holder 87 also moves along with the second connecting rod 86, and the brush piece 88 scrapes the water mist, so that the beneficial effect of conveniently brushing the mist and dust on the window glass is achieved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a noise reduction numerical control lathe is with portable guard gate, includes guard gate main part (1), doorknob (2), slider (3), spout (4), slide rail (5) and round bar (6), its characterized in that: the safety door is characterized by further comprising a noise reduction device (7) and a demisting device (8), the rear end of the door handle (2) is fixedly connected with the lower side of the front end of the protective door main body (1) through bolts, the top end of the sliding block (3) is fixedly connected with the uppermost side of the rear end of the protective door main body (1), the sliding chute (4) is arranged at the bottom end of the protective door main body (1), the upper end of the inner side of the sliding rail (5) is slidably connected with the lower end of the sliding block (3), the outer side of the round rod (6) is slidably connected with the inner side of the sliding chute (4), the noise reduction device (7) is arranged in the protective door main body (1), the demisting device (8) is arranged at the rear end of the noise reduction device (7), the noise reduction device (7) is composed of an inner plate body (71), soundproof cotton (72), a sealing ring (73), a frame body (74), first tempered glass (75), a soundproof film (76) and a second tempered glass (77), the periphery of the front end of, soundproof cotton (72) front end and the inside front end fixed connection of guard gate main part (1), soundproof cotton (72) rear end and interior plate body (71) front end fixed connection, sealing washer (73) inboard and guard gate main part (1) outside rear end fixed connection, the framework (74) outside and the inboard fixed connection of guard gate main part (1) front end through-hole, first toughened glass (75) outside and framework (74) inboard front end fixed connection, sound-proof membrane (76) front end and first toughened glass (75) rear end fixed connection, sound-proof membrane (76) rear end and second toughened glass (77) front end fixed connection, second toughened glass (77) outside and framework (74) inboard rear end fixed connection, defogging device (8) are by casing (81), gear wheel (82), pinion (83), commentaries on classics handle (84), first connecting rod (85), Second connecting rod (86), brush yoke (87) and brush piece (88) are constituteed, casing (81) front end and interior plate body (71) rear end fixed connection, casing (81) set up in framework (74) below, gear wheel (82) front end rotates with the inside front end right side of casing (81) to be connected, pinion (83) front end rotates with the inside front end of casing (81) to be connected, pinion (83) right-hand member and gear wheel (82) left end intermeshing, it runs through protective door main part (1) front end and casing (81) rear end and rotates with protective door main part (1) front end and casing (81) rear end to rotate (84) rear end and gear wheel (83) front end middle part fixed connection, first connecting rod (85) right-hand member rotates with gear wheel (82) rear end right side downside to be connected, first connecting rod (85) left end rotates with second connecting rod (86) right-hand member to be connected, second connecting rod (86) left end is rotated with the inside left end of casing (81) and is connected, casing (81) rear end left side is passed to brush yoke (87) right-hand member front side and second connecting rod (86) left end rear side fixed connection, brush piece (88) rear end and brush yoke (87) front end fixed connection, brush piece (88) front end and second toughened glass (77) rear end are laminated each other.
2. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: soundproof cotton (72) thickness is 3cm, and soundproof cotton (72) outside and guard gate main part (1) inboard laminate each other.
3. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: the first toughened glass (75) and the second toughened glass (77) are pressed into a whole, and the thickness is 2 cm.
4. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: the rotating handle (84) is cylindrical, and anti-skid patterns are arranged on the surface exposed outside.
5. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: the first connecting rod (85) is J-shaped, and the bending angle of the first connecting rod (85) is 20 degrees.
6. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: the brush holder (87) is rectangular and strip-shaped, and the length of the brush holder (87) is shorter than the width of the protective door main body (1).
7. The portable guard door for a noise-reducing numerically controlled lathe according to claim 1, characterized in that: the door handle (2) is obliquely arranged on the protective door main body (1), and the outer surface of the door handle (2) is wrapped with a layer of rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404050.4U CN209886704U (en) | 2019-03-28 | 2019-03-28 | Noise reduction numerical control lathe is with portable guard gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404050.4U CN209886704U (en) | 2019-03-28 | 2019-03-28 | Noise reduction numerical control lathe is with portable guard gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209886704U true CN209886704U (en) | 2020-01-03 |
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ID=68998125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920404050.4U Expired - Fee Related CN209886704U (en) | 2019-03-28 | 2019-03-28 | Noise reduction numerical control lathe is with portable guard gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209886704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118856A (en) * | 2021-03-09 | 2021-07-16 | 广州市昊志机电股份有限公司 | Machine tool with cleaning and protecting functions |
| CN114472934A (en) * | 2022-01-24 | 2022-05-13 | 镇江华阳电子有限公司 | Numerical control lathe convenient to unload of TNC type connector production |
| CN115351706A (en) * | 2022-08-24 | 2022-11-18 | 南京鑫科玛数控机床有限公司 | Can be according to horizontal digit control machine tool that processing position guard gate intelligence was followed |
-
2019
- 2019-03-28 CN CN201920404050.4U patent/CN209886704U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118856A (en) * | 2021-03-09 | 2021-07-16 | 广州市昊志机电股份有限公司 | Machine tool with cleaning and protecting functions |
| CN114472934A (en) * | 2022-01-24 | 2022-05-13 | 镇江华阳电子有限公司 | Numerical control lathe convenient to unload of TNC type connector production |
| CN115351706A (en) * | 2022-08-24 | 2022-11-18 | 南京鑫科玛数控机床有限公司 | Can be according to horizontal digit control machine tool that processing position guard gate intelligence was followed |
| CN115351706B (en) * | 2022-08-24 | 2024-02-06 | 南京鑫科玛数控机床有限公司 | Horizontal numerically-controlled machine tool capable of intelligently following protective door according to machining position |
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| CF01 | Termination of patent right due to non-payment of annual fee |