CN110571078B - Quincuncial contact and static contact assembly fixture and operation method thereof - Google Patents
Quincuncial contact and static contact assembly fixture and operation method thereof Download PDFInfo
- Publication number
- CN110571078B CN110571078B CN201910724819.5A CN201910724819A CN110571078B CN 110571078 B CN110571078 B CN 110571078B CN 201910724819 A CN201910724819 A CN 201910724819A CN 110571078 B CN110571078 B CN 110571078B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- contact
- piston rod
- double
- plum blossom
- Prior art date
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003068 static effect Effects 0.000 title claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 241000722921 Tulipa gesneriana Species 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manipulator (AREA)
Abstract
The invention relates to an assembly fixture, in particular to an assembly fixture for a plum blossom contact and a fixed contact and an operation method thereof, belonging to the field of low-voltage electrical equipment. The movable clamping press-fit assembly is arranged above the positioning assembly, the movable clamping press-fit assembly is movably pressed with the positioning assembly, a plurality of fixed contacts are arranged in the material channel, and the movable clamping press-fit assembly and the fixed contacts in the material channel are correspondingly distributed in a matched mode. The degree of automation is improved, and the assembly precision is high.
Description
Technical Field
The invention relates to an assembly fixture, in particular to an assembly fixture for a plum blossom contact and a fixed contact and an operation method thereof, belonging to the field of low-voltage electrical equipment.
Background
The plug-in molded case circuit breaker needs to combine the plum blossom contact and the fixed contact first and then to be mounted on each phase contact of the circuit breaker. Fig. 1 is a quincuncial contact, mainly comprising: a fixed contact, b finger springs, c contact pieces and d supporting plates. Five contact pieces c are circumferentially and equally arranged on the periphery of a supporting plate d, finger springs b are respectively arranged at the necks of the two ends of the contact pieces c, the inner sides of the contact pieces c are tightly attached to the step surface of the supporting plate d under the action of the finger springs b, and bosses of the supporting plate d are matched with round holes of the contact pieces c. In the past, the fixed contact a penetrates into the plum blossom contact through lengthening the external thread of the handle and being connected with the internal thread of the fixed contact a, and then forcedly penetrates into the plum blossom contact by manpower.
Disclosure of Invention
The invention mainly solves the defects existing in the prior art, and provides the quincuncial contact and static contact assembly fixture which is compact in structure and capable of being quickly and reliably automatically installed and the operation method thereof.
The technical problems of the invention are mainly solved by the following technical proposal:
the assembly fixture for the plum blossom contact and the fixed contact comprises a bracket and the plum blossom contact, wherein a movable clamping pressing component, a positioning component and a material channel are arranged in the bracket, the movable clamping pressing component which is movably pressed with the positioning component is arranged above the positioning component, the fixed contact is arranged in the material channel, and the movable clamping pressing component and the fixed contact in the material channel are correspondingly distributed in a matching mode;
the movable clamping and pressing assembly comprises at least one three-jaw clamping finger cylinder capable of sliding displacement, and the three-jaw clamping finger cylinder and the fixed contact are movably clamped;
the positioning assembly comprises at least three pen-shaped cylinders with evenly distributed centers and circumferences, the plum blossom contacts are positioned at the centers of the 4 pen-shaped cylinders, and the upper parts of the plum blossom contacts and the fixed contacts in the three-jaw finger clamping cylinder are pressed in an up-down movable mode.
Preferably, the support in be equipped with a pair of mini cylinder that is bilateral symmetry and distribute, the grudging post in be equipped with linear guide and biax cylinder, biax cylinder carry out horizontal displacement along linear guide through the slider, every mini cylinder control biax cylinder, mini cylinder promote biax cylinder and carry out the displacement, the bottom of biax cylinder be equipped with the cylinder cushion, three-jaw clamp indicate the cylinder and fix the bottom at the cylinder cushion.
Preferably, the extension end of the mini cylinder is fixedly connected with the cushion block, the bottom of the cushion block is fixed on the sliding block, the surface of the cushion block is fixed with the double-shaft cylinder, and the extension end of the cushion block and the mini cylinder are fixed through nuts.
Preferably, the head of the extending end of the pen-shaped air cylinder is provided with pressing blocks which are attached to the outer wall of the plum blossom contact, the number of the pen-shaped air cylinders is 5, and the 5 pen-shaped air cylinders are uniformly distributed.
Preferably, a support is arranged in the bracket, and the material channel is fixed on the support through a connecting plate.
Preferably, a storage bin is arranged in the bracket, and the storage bin and the three-jaw finger clamping cylinder at the left end are movably distributed up and down correspondingly.
The mini cylinder is fixed on the bracket through a support and is locked by a nut; the end parts of the piston rods of the air cylinders are respectively in threaded connection with the cushion blocks and are fastened by nuts; the linear guide rail is matched with the sliding block for use, one surface of the cushion block is fixed on the sliding block, the other surface of the cushion block is tightly fixed with a double-shaft cylinder, and the linear guide rail is fixed on the bracket; the end part of the piston rod of the double-shaft cylinder is provided with a cylinder cushion block, and the lower end of the cylinder cushion block is respectively provided with a three-jaw finger clamping cylinder; the bracket is fixed on the vertical plate, and the vertical plate is fixed on the working panel; five pen-shaped cylinders uniformly distributed around the circumference of the center are arranged in the middle of the working panel, and the end part of a piston rod of each cylinder is provided with a pressing block and is screwed by a nut; the right side of the working panel is provided with a fixed contact a conveying material channel which is fixed on a support through a connecting plate, and the support is fixed on the working panel. The static contact a is directionally and orderly transmitted to a material channel by a vibration disc, and then passes through a material blocking and separating device, and the static contact a reaches the Z position of the temporary storage position. When the three-jaw clamping device is in operation, a plum blossom contact (consisting of b, c and d) is manually placed in the approximate center of five pressing blocks, each contact c is approximately centered with the pressing block, a start button is started, a PLC control program is started, the five pen-shaped air cylinder piston rods extend forwards, the plum blossom contact is pressed and centered through the pressing blocks (when the pen-shaped air cylinder is fixed, the piston rods extend in place, the plum blossom contact is in a lower end shrinkage state and an upper end expansion state), the mini air cylinder piston rod is in a shrinkage state, a three-jaw clamping finger cylinder at the lower part of the double-shaft air cylinder corresponds to a temporary storage position Z of a fixed contact a, the double-shaft air cylinder piston rod extends downwards, the lower three-jaw clamping finger cylinder contracts to clamp the fixed contact a, the double-shaft air cylinder piston rod is shrunk and ascends, the mini air cylinder piston rod extends leftwards, and after the mini air cylinder piston rod extends in place, the three-jaw clamping finger cylinder is loosened, so that the fixed contact a falls into the plum blossom contact; the piston rod of the double-shaft cylinder is contracted upwards, and the piston rod of the mini cylinder is contracted, so that the double-shaft cylinder is positioned at the right side; the piston rod of the five pen-shaped cylinders is contracted, and the press block loosens the plum blossom contact; the mini cylinder piston rod stretches out the right side and moves to push the double-shaft cylinder to move rightwards along the linear guide rail, after the double-shaft cylinder piston rod stretches out downwards, the lower three-jaw clamping finger cylinder contracts to clamp a combined finished product of the plum blossom contact and the fixed contact a, the double-shaft cylinder piston rod contracts upwards, the mini cylinder piston rod contracts leftwards, after the double-shaft cylinder piston rod stretches out downwards, the lower three-jaw clamping finger cylinder loosens, the finished product falls into a storage bin, and the double-shaft cylinder piston rod contracts upwards.
The operation method of the assembly fixture for the quincuncial contact and the fixed contact comprises the following steps:
(1) The static contact a is arranged at a temporary storage position Z of a material channel through a vibrating disc, a material blocking mechanism and a material separating mechanism;
(2) Manually placing the plum blossom contact into a working position, starting a button, and switching to PLC automatic control;
(3) Five pen-shaped cylinders act to press the lower ends of the plum blossom contacts, so that the upper ends of the plum blossom contacts are expanded;
(4) The mini cylinder is in a piston rod shrinkage state, a piston rod of the double-shaft cylinder stretches out and descends, the lower three-jaw clamping finger cylinder shrinks and clamps the fixed contact a, and the piston rod of the double-shaft cylinder shrinks and ascends;
(5) After the piston rod of the mini cylinder extends out of the left row and is in place, the piston rod of the double-shaft cylinder extends out of the left row, and the three-jaw finger clamping cylinder is loosened, so that the fixed contact a falls into the plum blossom contact;
(6) The piston rod of the double-shaft cylinder contracts and moves upwards, and the piston rod of the mini cylinder contracts and moves rightwards, so that the double-shaft cylinder is positioned on the right side;
(7) After the piston rod of the mini cylinder stretches out rightwards and is in place, the piston rod of the double-shaft cylinder stretches out downwards, the three-jaw clamping finger cylinder contracts and clamps the assembled quincuncial contact and fixed contact a to form a finished product, and the piston rod of the double-shaft cylinder contracts and rises;
(8) After the piston rod of the mini cylinder is contracted and left-hand, the double-shaft cylinder is positioned at the left side, the piston rod of the double-shaft cylinder stretches out and descends, the lower three-jaw clamping finger cylinder is loosened, so that a finished product falls into the storage bin, and the piston rod of the double-shaft cylinder is contracted and ascended;
repeating the above process to perform semi-automatic assembly of the plum blossom contact and the fixed contact a.
The assembly fixture for the plum blossom contact and the fixed contact and the operation method thereof greatly reduce the labor intensity of workers, do not need the skills of the workers, obviously improve the assembly speed, and can be assembled by monitoring a plurality of fixtures by one person.
Drawings
Fig. 1 is a schematic structural diagram of a tulip contact and a fixed contact in the invention;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic view of the construction of the assembly fixture of the present invention;
FIG. 4 is a schematic side elevational view of FIG. 3;
fig. 5 is a schematic view of the cross-sectional A-A structure of fig. 3.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Example 1: as shown in the figure, the assembly fixture for the plum blossom contact and the fixed contact comprises a bracket 1 and the plum blossom contact 2, wherein a movable clamping pressing component, a positioning component and a material channel 3 are arranged in the bracket 1, the movable clamping pressing component which is movably pressed with the positioning component is arranged above the positioning component, a plurality of fixed contacts a are arranged in the material channel 3, and the movable clamping pressing component and the fixed contacts a in the material channel 3 are correspondingly distributed in a matching mode;
the movable clamping and pressing assembly comprises at least one three-jaw clamping finger cylinder 5 capable of sliding displacement, and the three-jaw clamping finger cylinder 5 and the fixed contact a are movably clamped;
the positioning assembly comprises at least three pen-shaped cylinders 6 which are uniformly distributed in the center circumference, the plum blossom contacts 2 are positioned in the center positions of the 4 pen-shaped cylinders 6, and the upper parts of the plum blossom contacts 2 and the fixed contacts a in the three-jaw finger clamping cylinder 5 are pressed in an up-down movable mode.
The support 1 in be equipped with a pair of mini cylinder 7 that is bilateral symmetry and distribute, the grudging post 1 in be equipped with linear guide 8 and biax cylinder 9, biax cylinder 9 carry out horizontal displacement along linear guide 8 through slider 10, every mini cylinder 7 control biax cylinder 9, mini cylinder 7 promote biax cylinder 9 and carry out the displacement, the bottom of biax cylinder 9 be equipped with cylinder cushion 11, three-jaw clamp indicate cylinder 5 fix the bottom at cylinder cushion 11.
The extension end of the mini cylinder 7 is fixedly connected with a cushion block 12, the bottom of the cushion block 12 is fixed on a sliding block 10, the surface of the cushion block 12 is fixed with the double-shaft cylinder 9, and the extension ends of the cushion block 12 and the mini cylinder 7 are fixed through nuts.
The head of the extending end of the pen-shaped air cylinder 6 is provided with pressing blocks 13 which are attached to the outer wall of the plum blossom contact 2, the number of the pen-shaped air cylinders 6 is 5, and the 5 pen-shaped air cylinders 6 are uniformly distributed.
The support 1 is internally provided with a support 14, and the material channel 3 is fixed on the support 14 through a connecting plate 15.
The bracket 1 is internally provided with a storage bin 16, and the storage bin 16 and the three-jaw finger clamping cylinder 5 at the left end are movably distributed up and down correspondingly.
The operation method of the assembly fixture for the quincuncial contact and the fixed contact comprises the following steps:
(1) The static contact a is arranged at a temporary storage position Z of a material channel through a vibrating disc, a material blocking mechanism and a material separating mechanism;
(2) Manually placing the plum blossom contact into a working position, starting a button, and switching to PLC automatic control;
(3) Five pen-shaped cylinders act to press the lower ends of the plum blossom contacts, so that the upper ends of the plum blossom contacts are expanded;
(4) The mini cylinder is in a piston rod shrinkage state, a piston rod of the double-shaft cylinder stretches out and descends, the lower three-jaw clamping finger cylinder shrinks and clamps the fixed contact a, and the piston rod of the double-shaft cylinder shrinks and ascends;
(5) After the piston rod of the mini cylinder extends out of the left row and is in place, the piston rod of the double-shaft cylinder extends out of the left row, and the three-jaw finger clamping cylinder is loosened, so that the fixed contact a falls into the plum blossom contact;
(6) The piston rod of the double-shaft cylinder contracts and moves upwards, and the piston rod of the mini cylinder contracts and moves rightwards, so that the double-shaft cylinder is positioned on the right side;
(7) After the piston rod of the mini cylinder stretches out rightwards and is in place, the piston rod of the double-shaft cylinder stretches out downwards, the three-jaw clamping finger cylinder contracts and clamps the assembled quincuncial contact and fixed contact a to form a finished product, and the piston rod of the double-shaft cylinder contracts and rises;
(8) After the piston rod of the mini cylinder is contracted and left-hand, the double-shaft cylinder is positioned at the left side, the piston rod of the double-shaft cylinder stretches out and descends, the lower three-jaw clamping finger cylinder is loosened, so that a finished product falls into the storage bin, and the piston rod of the double-shaft cylinder is contracted and ascended;
repeating the above process to perform semi-automatic assembly of the plum blossom contact and the fixed contact a.
Claims (7)
1. The utility model provides a plum blossom contact and static contact assembly jig which characterized in that: the movable clamping pressing assembly is arranged above the positioning assembly, the movable clamping pressing assembly is movably pressed with the positioning assembly, a plurality of fixed contacts (a) are arranged in the material channel (3), and the movable clamping pressing assembly is correspondingly distributed with the fixed contacts (a) in the material channel (3) in a matching mode;
the movable clamping and pressing assembly comprises at least one three-jaw clamping finger cylinder (5) capable of sliding displacement, and the three-jaw clamping finger cylinder (5) and the fixed contact (a) are movably clamped;
the positioning assembly comprises at least three pen-shaped cylinders (6) which are uniformly distributed on the circumference of the center, the plum blossom contacts (2) are positioned at the center of the 4 pen-shaped cylinders (6), and the upper parts of the plum blossom contacts (2) and the fixed contacts (a) in the three-jaw finger clamping cylinder (5) are pressed in an up-down movable mode.
2. The tulip contact and stationary contact assembly fixture of claim 1, wherein: the support (1) in be equipped with a pair of mini cylinder (7) that are bilateral symmetry and distribute, support (1) in be equipped with linear guide (8) and biax cylinder (9), biax cylinder (9) carry out horizontal displacement along linear guide (8) through slider (10), every mini cylinder (7) control biax cylinder (9), mini cylinder (7) promote biax cylinder (9) and carry out the displacement, the bottom of biax cylinder (9) be equipped with cylinder cushion (11), three-jaw clamp indicate the bottom of cylinder cushion (11) to fix.
3. The tulip contact and stationary contact assembly fixture of claim 2, wherein: the mini cylinder (7) stretch out end and cushion (12) fixed connection, the bottom of cushion (12) fix on slider (10), the surface of cushion (12) fixed with biax cylinder (9), the stretch out end of cushion (12) and mini cylinder (7) pass through the nut and fix.
4. The tulip contact and stationary contact assembly fixture of claim 1, wherein: the head of the extending end of the pen-shaped air cylinder (6) is provided with pressing blocks (13) which are attached to the outer wall of the plum blossom contact (2), the number of the pen-shaped air cylinders (6) is 5, and the 5 pen-shaped air cylinders (6) are uniformly distributed.
5. The tulip contact and stationary contact assembly fixture of claim 1, wherein: the support (1) is internally provided with a support (14), and the material channel (3) is fixed on the support (14) through a connecting plate (15).
6. The tulip contact and stationary contact assembly fixture of claim 2, wherein:
the bracket (1) is internally provided with a storage bin (16), and the storage bin (16) and the three-jaw finger clamping cylinder (5) at the left end are movably distributed correspondingly up and down.
7. A method of operating a tulip contact and stationary contact assembly fixture according to claim 1 or 3, characterized by the steps of:
(1) The static contact (a) is connected to a material channel temporary storage position (Z) through a vibrating disc, a material blocking mechanism and a material separating mechanism;
(2) Manually placing the plum blossom contact into a working position, starting a button, and switching to PLC automatic control;
(3) Five pen-shaped cylinders act to press the lower ends of the plum blossom contacts, so that the upper ends of the plum blossom contacts are expanded;
(4) The mini cylinder is in a piston rod shrinkage state, a piston rod of the double-shaft cylinder stretches out and descends, a lower three-jaw clamping finger cylinder shrinks and clamps the fixed contact (a), and the piston rod of the double-shaft cylinder shrinks and ascends;
(5) After the piston rod of the mini cylinder extends out of the left row and is in place, the piston rod of the double-shaft cylinder extends out of the left row, and the three-jaw finger clamping cylinder is loosened, so that the fixed contact (a) falls into the plum blossom contact;
(6) The piston rod of the double-shaft cylinder contracts and moves upwards, and the piston rod of the mini cylinder contracts and moves rightwards, so that the double-shaft cylinder is positioned on the right side;
(7) After the piston rod of the mini cylinder stretches out rightwards and is in place, the piston rod of the double-shaft cylinder stretches out downwards, the three-jaw clamping finger cylinder contracts and clamps the assembled finished product of the plum blossom contact and the fixed contact (a), and the piston rod of the double-shaft cylinder contracts and rises;
(8) After the piston rod of the mini cylinder is contracted and left-hand, the double-shaft cylinder is positioned at the left side, the piston rod of the double-shaft cylinder stretches out and descends, the lower three-jaw clamping finger cylinder is loosened, so that a finished product falls into the storage bin, and the piston rod of the double-shaft cylinder is contracted and ascended;
repeating the above process to perform semi-automatic assembly of the plum blossom contact and the fixed contact (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724819.5A CN110571078B (en) | 2019-08-07 | 2019-08-07 | Quincuncial contact and static contact assembly fixture and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724819.5A CN110571078B (en) | 2019-08-07 | 2019-08-07 | Quincuncial contact and static contact assembly fixture and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110571078A CN110571078A (en) | 2019-12-13 |
| CN110571078B true CN110571078B (en) | 2024-03-19 |
Family
ID=68774729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910724819.5A Active CN110571078B (en) | 2019-08-07 | 2019-08-07 | Quincuncial contact and static contact assembly fixture and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110571078B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006393A (en) * | 2015-07-24 | 2015-10-28 | 宁波耀华电气科技有限责任公司 | Device for assembling plum-blossom-shaped contact |
| CN207763947U (en) * | 2018-02-01 | 2018-08-24 | 龙岩亿隆电力设备有限公司 | A kind of Mume flower contact and static contact coordinate test fixture |
| CN209104022U (en) * | 2019-01-22 | 2019-07-12 | 台州通源电器股份有限公司 | A kind of Mume flower contact spring mounting tool |
| CN210575633U (en) * | 2019-08-07 | 2020-05-19 | 杭州之江开关股份有限公司 | Plum blossom contact and static contact assembly jig |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942334A (en) * | 2015-06-02 | 2015-09-30 | 中信戴卡股份有限公司 | Steering knuckle drilling device |
-
2019
- 2019-08-07 CN CN201910724819.5A patent/CN110571078B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006393A (en) * | 2015-07-24 | 2015-10-28 | 宁波耀华电气科技有限责任公司 | Device for assembling plum-blossom-shaped contact |
| CN207763947U (en) * | 2018-02-01 | 2018-08-24 | 龙岩亿隆电力设备有限公司 | A kind of Mume flower contact and static contact coordinate test fixture |
| CN209104022U (en) * | 2019-01-22 | 2019-07-12 | 台州通源电器股份有限公司 | A kind of Mume flower contact spring mounting tool |
| CN210575633U (en) * | 2019-08-07 | 2020-05-19 | 杭州之江开关股份有限公司 | Plum blossom contact and static contact assembly jig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110571078A (en) | 2019-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207222708U (en) | A kind of stamping equipment for being conveniently replaceable grinding tool | |
| CN106112597B (en) | A kind of Automatic-clamping sawing machine | |
| CN211660838U (en) | Stamping device for machine-building | |
| CN207547329U (en) | A kind of capo tasto apparatus for bending | |
| CN110571078B (en) | Quincuncial contact and static contact assembly fixture and operation method thereof | |
| CN210575633U (en) | Plum blossom contact and static contact assembly jig | |
| CN110625383A (en) | Hydraulic valve rod assembly machine | |
| CN109965502B (en) | Wire binding device for manufacturing hairbrush | |
| CN206869507U (en) | Synchro converter ring built-up jig | |
| CN106965295B (en) | Compression molding equipment for activated carbon rods | |
| CN215969288U (en) | Cement hollow block forming machine | |
| CN112536380B (en) | Automatic rotary riveting device of automobile skylight mechanical group | |
| CN210110612U (en) | Automatic keycap assembling device in computer keyboard production process | |
| CN210647064U (en) | Multistation injecting glue machine is used in processing of filter shell | |
| CN220839047U (en) | Mould part adds clamping apparatus | |
| CN105619287B (en) | A kind of fast pneumatic frock clamp | |
| CN209843497U (en) | High-efficient quick coil drawing die frock | |
| CN220006869U (en) | Positioning device for machining | |
| CN221159268U (en) | Automatic nut shell assembling equipment | |
| CN216595351U (en) | Electrical switch testing device | |
| CN211029043U (en) | Novel machining clamp for machining | |
| CN221337665U (en) | Numerical control machine tool fixture | |
| CN218910450U (en) | Support frame for heat treatment | |
| CN220462299U (en) | Gasket processing equipment | |
| CN219947410U (en) | Novel automatic oil press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 4518, Xiaoqing Avenue, Hongshan Farm, Xiaoshan District, Hangzhou City, Zhejiang Province, 311234 Applicant after: HANGZHOU ZHIJIANG SWITCHGEAR STOCK Co.,Ltd. Address before: 311201 No. 243 Hongshan Avenue, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU ZHIJIANG SWITCHGEAR STOCK Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |