CN114310398A - Numerical control lathe fixture suitable for thin-wall device - Google Patents
Numerical control lathe fixture suitable for thin-wall device Download PDFInfo
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- CN114310398A CN114310398A CN202210092996.8A CN202210092996A CN114310398A CN 114310398 A CN114310398 A CN 114310398A CN 202210092996 A CN202210092996 A CN 202210092996A CN 114310398 A CN114310398 A CN 114310398A
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Abstract
The invention relates to the technical field of lathe machining, in particular to a numerical control lathe fixture suitable for thin-wall devices, which comprises a base, a height adjusting assembly and a tightening assembly, wherein the height adjusting assembly is arranged in the middle of the upper surface of the base; cross to be connected with on the carousel and prop tight subassembly, the cylinder drives the tourus and descends to drive the briquetting and move around to the carousel, reach the fixed purpose to the device, and through the cooperation of briquetting and compression roller, compress tightly the interior external surface of device respectively, effectually can prevent that the device from warping, the accuracy nature of lifting means processing.
Description
Technical Field
The invention relates to the technical field of lathe machining, in particular to a numerical control lathe fixture suitable for thin-wall devices.
Background
In the field of machining, the clamp is widely applied and used for clamping different parts to be machined, and clamps with different structures and shapes are often arranged to adapt to the shapes and the mechanisms of the parts and ensure the machining precision and efficiency.
When a cylindrical thin-wall device (referred to as a device for short) is processed, the device to be processed is prone to deform under the clamping force of the clamp due to the thinness of the device, and therefore the dimensional accuracy and the processing accuracy of the device are affected.
The traditional thin-wall device clamp usually adopts a three-jaw chuck, and the device is clamped by applying force in three directions, so that the device can be clamped to a certain extent, but the requirement of the shape tolerance of the device is difficult to guarantee, and the processing precision of the device is influenced.
In the processing process of a part of thin-wall devices, the angle of the device needs to be adjusted in the horizontal direction so as to facilitate processing of different positions of the device; the current clamps are not ideal for achieving this effect.
Aiming at the problem exposed in the processing process of the thin-wall device at present, the numerical control lathe clamp suitable for the thin-wall device needs to be optimized.
Disclosure of Invention
In order to solve the technical problems, the invention provides a numerical control lathe fixture suitable for a thin-wall device, which has the characteristics of being convenient for clamping and fixing the thin-wall device and adjusting the angle of the thin-wall device on a horizontal plane.
In order to achieve the purpose, the invention provides the following technical scheme: a numerical control lathe fixture suitable for a thin-wall device comprises a base, a height adjusting assembly and a tightening assembly, wherein the height adjusting assembly is arranged in the middle of the upper surface of the base, the tightening assembly is horizontally arranged at the top end of the height adjusting assembly and used for locking the device from the inside of the device, the tightening assembly comprises a rotating sleeve, a plurality of first sliding rods are symmetrically arranged on the side wall of the rotating sleeve, a sliding seat is sleeved on the outer wall of each first sliding rod, a first sliding block is fixedly arranged at the top end of each sliding seat, and a pressing block is arranged at the top end of each first sliding block;
and the pressing assemblies are uniformly distributed at the outer edge of the upper surface of the base along the circumferential direction.
As a preferable technical solution of the numerical control lathe fixture suitable for a thin-wall device in the present invention, a turntable is horizontally disposed in the tightening assembly, an upper surface of the turntable extends outward uniformly along a circumferential direction and is provided with a slide hole, the first slider is embedded in the slide hole and can slide in the slide hole along a groove direction of the slide hole, and the turntable is driven to rotate by a height adjusting assembly mounted on the base.
As the preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device, the height adjusting assembly comprises a servo motor and a gear, the servo motor is fixed at the outer edge of the upper surface of the base, the gear is sleeved on an output shaft of the servo motor, and the gear is meshed with the insections of the outer wall of the turntable and drives the insections.
The preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device comprises that the height adjusting assembly comprises an air cylinder fixed on a base, a lifting seat is fixedly arranged on an output shaft of the air cylinder, a plurality of connecting rods are uniformly and fixedly arranged at the outer edge of the upper surface of the lifting seat, a circular truncated cone is fixedly arranged at the top end of each connecting rod, an inclined plate with the inclined direction facing the circular truncated cone is fixedly arranged at the bottom end of the sliding seat, and a baffle plate extending towards the circular truncated cone is fixedly arranged at the bottom end of the inclined plate.
As the preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device, a connecting piece is fixedly arranged at one end, away from the rotating sleeve, of the first sliding rod, the connecting piece is fixedly connected with the bottom surface of the rotary table, a first spring is sleeved on the outer wall of one end, close to the connecting piece, of the first sliding rod, and two ends of the first spring are respectively in contact with the connecting piece and the side wall of the sliding seat.
As a preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device, a plurality of support columns are further uniformly and fixedly arranged on the upper surface of the base, fixed seats are horizontally arranged at the top ends of the support columns, the fixed seats are arranged above the lifting seat, fixed shafts are fixedly arranged in the middle of the fixed seats, locking grooves are formed in the upper surface of the rotating sleeve in a penetrating mode, and the top ends of the fixed shafts penetrate through the height adjusting assemblies and are inserted into the locking grooves in a fitting mode.
In a preferred embodiment of the present invention, the circular truncated cone is a hollow member, the circular truncated cone is fitted with a bearing, a sliding sleeve is fitted inside the bearing, and the fixed shaft passes through the sliding sleeve.
According to the preferable technical scheme, the clamp of the numerical control lathe suitable for the thin-wall device comprises vertical beams, the vertical beams are vertically arranged on the upper surface of the base, the upper ends of the vertical beams are horizontally bent towards the axis of the truncated cone body to form bent parts, supports are arranged on the bent parts of the vertical beams in a sliding mode, and pressing rollers are arranged at one ends, different from the second sliding blocks, of the supports.
According to the preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device, the upper surface of the bending part of each vertical beam is provided with the sliding groove, the groove trend of the sliding groove faces to the axial lead of the circular truncated cone body, the second sliding block is arranged inside the sliding groove along the groove trend of the sliding groove in a sliding mode, and the support is fixedly arranged at the top end of the second sliding block.
As the preferable technical scheme of the numerical control lathe fixture suitable for the thin-wall device, a second sliding rod is further arranged inside the sliding groove along the direction of the groove of the sliding groove, the second sliding block is sleeved on the second sliding rod, a second spring is sleeved on the outer wall of one end, away from the axis of the circular truncated cone body, of the second sliding rod, and the second spring abuts against the second sliding block and pushes the support and the press roll to displace through self elasticity.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the tightening assembly is connected on the turntable, the cylinder drives the ring body to descend, so that the pressing block is driven to move towards the periphery of the turntable, the purpose of fixing the device is achieved, the inner surface and the outer surface of the device are respectively pressed through the matching of the pressing block and the pressing roller, the deformation of the device can be effectively prevented, and the accuracy of equipment processing is improved.
2. According to the invention, the annular body is rotatably connected to the outer side of the sliding sleeve, the annular body is tightly pressed and attached to the surface of the inclined plate, the servo motor drives the turntable to rotate, and the turntable drives the tightening component and the annular body to rotate together, so that the device is driven to horizontally rotate, and the side wall of the device is convenient to process.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic top view of the structure of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the tightening assembly of the present invention;
FIG. 5 is a schematic view of the height adjustment assembly of the present invention;
fig. 6 is a schematic structural view of the pressing assembly of the present invention.
In the figure: 1. a base; 2. a fixed seat;
3. a turntable; 31. a slide hole;
4. a tightening assembly; 41. rotating the sleeve; 42. a first slide bar; 43. a first slider; 44. a slide base; 45. briquetting; 46. a first spring; 47. a connecting member; 48. a sloping plate; 49. a baffle plate;
5. a compression assembly; 51. erecting a beam; 52. a chute; 53. a second slide bar; 54. a second spring; 55. a second slider; 56. a support; 57. a compression roller;
6. a height adjustment assembly; 61. a cylinder; 62. a lifting seat; 63. a sliding sleeve; 64. a connecting rod; 65. a bearing; 66. a circular truncated cone;
7. a fixed shaft; 8. a pillar; 9. a servo motor; 10. a gear.
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.
Examples
As shown in fig. 1-6, the numerical control lathe fixture suitable for thin-wall devices disclosed in the present invention comprises a base 1, a height adjusting assembly 6 disposed in the middle of the upper surface of the base 1, wherein the height adjusting assembly 6 is used to adjust the height of the truncated cone 66, so as to adjust the distance between the inclined plates 48, further, the distance between the pressing blocks 45 is convenient to adjust, the stretching assembly 4 is horizontally arranged at the top end of the height adjusting assembly 6 and used for locking the device from the inside of the device, the stretching assembly 4 is convenient for locking and fixing the device, the stretching assembly 4 comprises a rotating sleeve 41, a plurality of first sliding rods 42 are symmetrically arranged on the side wall of the rotating sleeve 41, a sliding seat 44 is sleeved on the outer wall of each first sliding rod 42, a first sliding block 43 is fixedly arranged at the top end of each sliding seat 44, a pressing block 45 is arranged at the top end of each first sliding block 43, and the pressing block 45 is an arc-shaped sheet-shaped component with the middle part protruding outwards; in this embodiment, the first sliding rods 42 are provided with four sets, and the four sets of the first sliding rods 42 are respectively provided at the side wall of the rotating sleeve 41 at an included angle of 90 °.
The pressing assemblies 5 are uniformly arranged at the outer edge of the upper surface of the base 1 along the circumferential direction, and the pressing assemblies 5 are used for fixing the outer wall of the device.
Specifically, prop tightly and horizontally be provided with carousel 3 in the subassembly 4, carousel 3 upper surface evenly outwards extends and has seted up slide opening 31 along the circumferencial direction, the inside at slide opening 31 is established in the gomphosis of first slider 43, and can slide in slide opening 31 inside along the groove trend of slide opening 31, carousel 3 passes through the altitude mixture control subassembly drive rotation of installation on the base 1, and then adjust the horizontal angle of the thin wall type device that its top was placed, the quantity of seting up of slide opening 31 is unanimous with first slide bar 42 quantity in this embodiment, and the installation angle is unanimous.
Specifically, height adjusting assembly includes servo motor 9 and gear 10, and servo motor 9 is fixed in the upper surface periphery department of base 1, has cup jointed gear 10 on servo motor 9's the output shaft, and gear 10 meshes and to its transmission with the insection of carousel 3 outer wall, and servo motor 9 is as power unit in this embodiment, and then adjusts the operation of carousel 3.
Specifically, height adjusting element 6 is including fixing the cylinder 61 on base 1, the fixed lift seat 62 that is equipped with on the output shaft of cylinder 61, the upper surface periphery department of lift seat 62 evenly fixes and is equipped with a plurality of connecting rod 64, the fixed round platform body 66 that is equipped with in top of connecting rod 64, the bottom mounting of slide 44 is equipped with the swash plate 48 of incline direction towards round platform body 66, the bottom mounting of swash plate 48 is equipped with the baffle 49 that extends towards round platform body 66 direction, round platform body 66 installation direction is big for the top in this embodiment, the bottom is little, swash plate 48 has seted up towards the lateral wall of round platform body 66 with round platform body 66 matched with arc cambered surface.
Specifically, a connecting piece 47 is fixedly arranged at one end, away from the rotating sleeve 41, of the first sliding rod 42, the connecting piece 47 is fixedly connected with the bottom surface of the rotary table 3, a first spring 46 is sleeved on the outer wall of one end, close to the connecting piece 47, of the first sliding rod 42, two ends of the first spring 46 are respectively in contact with the connecting piece 47 and the side wall of the sliding seat 44, and the first spring 46 is used for extruding the sliding seat 44 in the process of lifting the height of the circular table body 66, so that the pressing block 45 is reset.
Specifically, base 1's upper surface is the even fixed a plurality of pillar 8 that is equipped with still, 4 during the quantity that pillar 8 adopted in this embodiment, pillar 8's top horizontal installation is equipped with fixing base 2, fixing base 2 is installed in lift seat 62 top, the fixed axle 7 that is equipped with in fixing base 2 middle part, the upper surface of rotating sleeve 41 runs through and has seted up the locking groove, the top of fixed axle 7 runs through the gomphosis of height adjusting part 6 and inserts in the locking groove, the round platform body 66 is hollow component, the gomphosis is equipped with bearing 65 in the round platform body 66, the inside gomphosis of bearing 65 is equipped with sliding sleeve 63, fixed axle 7 passes from sliding sleeve 63, fixed axle 7 makes the height of carousel 3 remain stable in this embodiment, influence carousel 3 when avoiding height adjusting part 6 height-adjusting.
Specifically, the pressing assembly 5 includes vertical beams 51, the vertical beams 51 are vertically installed on the upper surface of the base 1, the upper end of each vertical beam 51 is horizontally bent towards the axial lead of the truncated cone 66 to form a bent portion, a support 56 is slidably arranged on the bent portion of the vertical beam 51, a pressing roller 57 is arranged at one end of the support 56 different from the second slider 55, the pressing roller 57 is a vertically installed cylindrical component in the embodiment, and a rubber sleeve is arranged on the outer wall of the pressing roller 57.
Specifically, the upper surface of the bending portion of each vertical beam 51 is provided with a sliding groove 52, the groove of the sliding groove 52 faces the axial lead of the circular truncated cone 66, a second sliding block 55 is slidably arranged inside the sliding groove 52 along the groove of the sliding groove 52, and the bracket 56 is fixedly arranged at the top end of the second sliding block 55.
Specifically, a second sliding rod 53 is further arranged inside the sliding groove 52 along the groove direction of the sliding groove 52, the second sliding block 55 is sleeved on the second sliding rod 53, a second spring 54 is sleeved on the outer wall of one end, away from the axis of the circular truncated cone 66, of the second sliding rod 53, and the second spring 54 abuts against the second sliding block 55 and pushes the support 56 and the pressing roller 57 to displace through self elasticity.
The working principle and the using process of the invention are as follows: when the numerical control lathe fixture is used, a worker processes a device to be processed, the device is vertically placed on the upper surface of the rotary table 3, and the second spring 54 pressurizes the second sliding block 55, the bracket 56 and the press roller 57 under the elasticity of the second spring, so that the press roller 57 is tightly attached to the outer wall of the device.
The staff starts cylinder 61 afterwards, and cylinder 61 drives the high decline of round platform body 66 during operation, extrudees swash plate 48 when round platform body 66 highly descends for swash plate 48 removes to the carousel 3 outside, and slide 44 drives first slider 43 and briquetting 45 outwards removal this moment, and briquetting 45 supports the inner wall to the device, fixes the device.
The servo motor 9 can drive the gear 10 to rotate in the operation process, and the gear 10 drives the rotary table 3 when rotating, so that the rotary table 3 keeps horizontal rotation, and further devices placed on the rotary table 3 horizontally rotate, and the devices can be conveniently processed at different positions.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all equivalent variations made by using the contents of the present specification and the drawings are within the protection scope of the present invention.
Claims (10)
1. The numerical control lathe fixture suitable for the thin-wall device is characterized by comprising a base (1), a height adjusting component (6) arranged in the middle of the upper surface of the base (1), and a tightening component (4) horizontally arranged at the top end of the height adjusting component (6) and used for locking the device from the inside of the device, wherein the tightening component (4) comprises a rotating sleeve (41), a plurality of first sliding rods (42) are symmetrically arranged on the side wall of the rotating sleeve (41), a sliding seat (44) is sleeved on the outer wall of each first sliding rod (42), a first sliding block (43) is fixedly arranged at the top end of each sliding seat (44), and a pressing block (45) is arranged at the top end of each first sliding block (43);
and the pressing assemblies (5) are uniformly distributed at the outer edge of the upper surface of the base (1) along the circumferential direction.
2. The clamp of claim 1, wherein the clamp comprises: prop tight subassembly (4) level and be provided with carousel (3), even outside extension of carousel (3) upper surface along the circumferencial direction has been seted up slide opening (31), the inside at slide opening (31) is established in first slider (43) gomphosis to can slide in slide opening (31) inside along the groove trend of slide opening (31), carousel (3) are through the high adjusting part drive rotation of installing on base (1).
3. The clamp of claim 2, wherein the clamp comprises: the height adjusting assembly comprises a servo motor (9) and a gear (10), the servo motor (9) is fixed at the outer edge of the upper surface of the base (1), the gear (10) is sleeved on an output shaft of the servo motor (9), and the gear (10) is meshed with the insections of the outer wall of the rotary table (3) and drives the insections.
4. The clamp of claim 1, wherein the clamp comprises: height adjusting subassembly (6) is including fixing cylinder (61) on base (1), fixed lifting seat (62) that is equipped with on the output shaft of cylinder (61), the upper surface periphery department of lifting seat (62) evenly fixes and is equipped with a plurality of connecting rod (64), the fixed round platform body (66) that is equipped with in top of connecting rod (64), the bottom mounting of slide (44) is equipped with inclined plate (48) of incline direction towards round platform body (66), the bottom mounting of inclined plate (48) is equipped with baffle (49) that extend towards round platform body (66) direction.
5. The clamp of claim 1, wherein the clamp comprises: the fixed connecting piece (47) that is equipped with of one end of rotating cover (41) is kept away from in first slide bar (42), connecting piece (47) and carousel (3) bottom surface fixed connection, first slide bar (42) are close to the one end outer wall of connecting piece (47) and have cup jointed first spring (46), the both ends of first spring (46) contact with connecting piece (47) and slide (44) lateral wall respectively.
6. The clamp of claim 4, wherein the clamp comprises: the upper surface of base (1) is the even fixed a plurality of pillar (8) that is equipped with still, the top horizontal installation of pillar (8) is equipped with fixing base (2), install in seat (62) top that goes up and down fixing base (2), fixing base (2) middle part is fixed and is equipped with fixed axle (7), the upper surface that rotates cover (41) runs through and has seted up the locking groove, the top of fixed axle (7) runs through altitude mixture control subassembly (6) gomphosis and inserts in the locking groove.
7. The clamp of claim 6, wherein: the round platform body (66) is a hollow component, a bearing (65) is embedded in the round platform body (66), a sliding sleeve (63) is embedded in the bearing (65), and the fixed shaft (7) penetrates through the sliding sleeve (63).
8. The clamp of claim 1, wherein the clamp comprises: compress tightly subassembly (5) including erecting roof beam (51), erect roof beam (51) and vertically install the upper surface at base (1), and each the upper end of erecting roof beam (51) is done horizontal bending towards the axial lead of the round platform body (66) and is formed the kink, and it is equipped with support (56) to slide on the kink of erecting roof beam (51), support (56) are different in the one end of second slider (55) and are equipped with compression roller (57).
9. The clamp of claim 8, wherein: the upper surface of the bent part of each vertical beam (51) is provided with a sliding groove (52), the direction of the groove of each sliding groove (52) faces the axial lead of the circular truncated cone body (66), a second sliding block (55) is arranged inside the sliding groove (52) in a sliding mode along the direction of the groove of each sliding groove (52), and the support (56) is fixedly arranged at the top end of the second sliding block (55).
10. The clamp of claim 9, wherein: a second sliding rod (53) is further arranged inside the sliding groove (52) along the groove direction of the sliding groove (52), the second sliding block (55) is sleeved on the second sliding rod (53), a second spring (54) is sleeved on the outer wall of one end, far away from the axial lead of the circular truncated cone body (66), of the second sliding rod (53), and the second spring (54) abuts against the second sliding block (55) and pushes the support (56) and the pressing roller (57) to displace through self elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092996.8A CN114310398B (en) | 2022-01-26 | 2022-01-26 | Numerical control lathe fixture suitable for thin-wall type device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092996.8A CN114310398B (en) | 2022-01-26 | 2022-01-26 | Numerical control lathe fixture suitable for thin-wall type device |
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| Publication Number | Publication Date |
|---|---|
| CN114310398A true CN114310398A (en) | 2022-04-12 |
| CN114310398B CN114310398B (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210092996.8A Active CN114310398B (en) | 2022-01-26 | 2022-01-26 | Numerical control lathe fixture suitable for thin-wall type device |
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| CN (1) | CN114310398B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918454A (en) * | 2022-06-10 | 2022-08-19 | 滁州市盛捷新材料有限公司 | Door closer end cover drilling equipment |
| CN117340785A (en) * | 2023-11-30 | 2024-01-05 | 湖南盛伦智能科技有限公司 | Clamp for machining metal product |
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| KR101205311B1 (en) * | 2012-05-14 | 2012-11-27 | 동우에이치에스티 주식회사 | Annulus gear roundness calibration device |
| CN211915517U (en) * | 2019-12-27 | 2020-11-13 | 济源市鑫华重工机械有限公司 | Fixing device for processing shaft sleeve |
| CN112025432A (en) * | 2020-09-15 | 2020-12-04 | 付永生 | Multi-angle synchronous efficient polishing equipment for automobile brake disc |
| CN212145673U (en) * | 2020-04-09 | 2020-12-15 | 蚌埠飞宇轴承有限公司 | Fixing device is used in automobile bearing processing |
| CN214816801U (en) * | 2021-02-25 | 2021-11-23 | 江苏赛弗威科技有限公司 | Rotary fixture for hub surface machining |
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2022
- 2022-01-26 CN CN202210092996.8A patent/CN114310398B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101205311B1 (en) * | 2012-05-14 | 2012-11-27 | 동우에이치에스티 주식회사 | Annulus gear roundness calibration device |
| CN211915517U (en) * | 2019-12-27 | 2020-11-13 | 济源市鑫华重工机械有限公司 | Fixing device for processing shaft sleeve |
| CN212145673U (en) * | 2020-04-09 | 2020-12-15 | 蚌埠飞宇轴承有限公司 | Fixing device is used in automobile bearing processing |
| CN112025432A (en) * | 2020-09-15 | 2020-12-04 | 付永生 | Multi-angle synchronous efficient polishing equipment for automobile brake disc |
| CN214816801U (en) * | 2021-02-25 | 2021-11-23 | 江苏赛弗威科技有限公司 | Rotary fixture for hub surface machining |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918454A (en) * | 2022-06-10 | 2022-08-19 | 滁州市盛捷新材料有限公司 | Door closer end cover drilling equipment |
| CN114918454B (en) * | 2022-06-10 | 2023-10-20 | 滁州市盛捷新材料有限公司 | Door closer end cover drilling equipment |
| CN117340785A (en) * | 2023-11-30 | 2024-01-05 | 湖南盛伦智能科技有限公司 | Clamp for machining metal product |
| CN117340785B (en) * | 2023-11-30 | 2024-04-02 | 湖南盛伦智能科技有限公司 | Clamp for machining metal product |
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| CN114310398B (en) | 2022-11-01 |
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Effective date of registration: 20230911 Address after: No. 152 Wenlin Renmin Road, Zhutang Town, Jiangyin City, Wuxi City, Jiangsu Province, 214400 Patentee after: WUXI AOSIWEITE TECHNOLOGY Co.,Ltd. Address before: 214121 No. 1600 West high wave road, Jiangsu, Wuxi Patentee before: WUXI INSTITUTE OF TECHNOLOGY |
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