CN114952673A - Annular workpiece translation type clamp with locking function - Google Patents
Annular workpiece translation type clamp with locking function Download PDFInfo
- Publication number
- CN114952673A CN114952673A CN202210795206.2A CN202210795206A CN114952673A CN 114952673 A CN114952673 A CN 114952673A CN 202210795206 A CN202210795206 A CN 202210795206A CN 114952673 A CN114952673 A CN 114952673A
- Authority
- CN
- China
- Prior art keywords
- lever
- push rod
- hinged
- rack
- frame
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of mechanical clamps, and discloses an annular workpiece clamp, which comprises: a frame, a push rod and a lever bracket, the lever, first connecting rod and first driving piece, the frame up end has an opening, the vertical low side that passes the frame in push rod upper end extends to inside the frame, the lever support links firmly in the lower extreme of frame, the lever sets up in the below of frame, lever and push rod sliding connection, the lever is articulated with the lever support, first connecting rod rotates with the lever to be connected, first driving piece rotates with first connecting rod to be connected, the second driving piece stiff end is connected with the push rod, every two of four rockers are a set of, two rocker parallel arrangement with a set of, the lower extreme of rocker and the top of push rod rotate respectively to be connected, the up end that the opening extends the frame is passed to the upper end of rocker, the drive end and the every rocker that are located the outside of second driving piece rotate to be connected, the frame top is located to the depression bar, every depression bar is articulated with a set of rocker, the briquetting articulates in the lower extreme of depression bar.
Description
Technical Field
The invention relates to the technical field of mechanical clamps, in particular to a translational clamp for an annular workpiece with a locking function.
Background
The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.
The clamp is generally composed of a positioning element, a clamping device, a tool setting guide element, an indexing device, a connecting element, a clamp body and the like.
The clamping angle of the annular workpiece clamp in the current market can be changed along with the change of the size of the workpiece and the surface flatness, so that the clamping force is uneven, and therefore, different annular tool clamps are required to be replaced, and the annular workpiece with a single size can be clamped only, so that the utilization rate of the clamp is extremely low.
Disclosure of Invention
The invention provides a translational self-adaptive clamp for an annular workpiece with a double-locking function, which can be self-adaptive to workpieces with different sizes and surface flatness.
The invention provides a translational clamp for an annular workpiece with a locking function, which comprises:
the upper end surface of the rack is provided with an opening;
the upper end of the push rod vertically penetrates through the lower surface of the rack and extends into the rack;
the lever bracket is fixedly connected to the lower end of the rack;
the lever is arranged below the rack, the lower end of the lever and the lower end of the push rod are connected in a sliding mode along the length direction of the lever, and the lever is hinged with the lever bracket;
the first end of the first connecting rod is rotatably connected with one end of the lever, which is far away from the push rod;
the first driving piece is rotatably connected with the second end of the first connecting rod so as to enable the first connecting rod to move along the circumferential direction;
the fixed end of the second driving piece is connected with the push rod;
the two rocking bars in the same group are arranged in parallel, the two groups of rocking bars are symmetrically arranged by taking the push rod as a center, the lower ends of the rocking bars are respectively and rotatably connected with the top of the push rod, the upper ends of the rocking bars penetrate through the opening to extend out of the upper end surface of the rack, and the driving end of the second driving piece is rotatably connected with each group of rocking bars positioned on the outer side;
the two pressure rods are respectively arranged above the rack, and each pressure rod is hinged with one group of rocking rods;
the pressing block is hinged to the lower end of the pressing rod.
Optionally, the first drive member comprises:
the eccentric wheel bracket is fixed on one side of the frame;
the eccentric wheel is hinged to the eccentric wheel bracket, and the second end of the first connecting rod is hinged to the eccentric wheel.
Optionally, the first driving member further comprises a handle, and the handle is fixed on the eccentric wheel.
Optionally, the second driver comprises:
the first end of the second connecting rod is hinged with the rocker positioned on the outer side, and the second connecting rod penetrates through the upper end face of the rack along the opening;
the first end of the crank is hinged with the second end of the second connecting rod, and the two cranks are simultaneously hinged on the push rod;
the spring is connected between the two cranks;
the roller is hinged to the second end of the crank;
the wedge-shaped block is fixed in the frame, the push rod penetrates through a central shaft of the wedge-shaped block and extends out of the upper end face of the wedge-shaped block, the two idler wheels are symmetrically distributed on two opposite side faces of the wedge-shaped block, and the idler wheels are in rolling fit with the wedge-shaped block.
Optionally, an adjusting bolt is connected between the pressing rod and the pressing block, the adjusting bolt vertically penetrates through one side, close to the edge of the rack, of the pressing rod, and the adjusting bolt is in threaded fit with the pressing rod.
Optionally, the upper end of the push rod is fixedly connected with a horizontal plate, and the lower ends of the rockers are respectively hinged to the horizontal plate.
Optionally, the size of the lower end face of the pressing block is larger than that of the upper end face of the pressing block.
Compared with the prior art, the invention has the beneficial effects that: the invention can drive the first connecting rod to move along the circumferential direction through the first driving piece, thereby realizing that the lever rotates around the bracket, the push rod which is connected with the lever in a sliding way can move up and down, and further drive the two groups of rocking rods to move up and down, meanwhile, the second driving piece drives the two groups of rocking rods to respectively rotate towards the back direction, thereby enabling the two groups of rocking rods to respectively drive the pressing rods which are hinged with the rocking rods to move towards two sides while pressing downwards, thereby realizing the clamping of the annular workpiece, the workpiece can be placed on the upper side surface of the frame (the diameter size of the frame can be properly increased in practical application) as long as the diameter of the workpiece is changed within a certain range, therefore, the mechanism can be self-adapted to workpieces with different sizes, as the pressing block can be driven by the parallelogram to translate, and can rotate around the rotating shaft of the pressing block, when the surface flatness of the workpiece and the size of the workpiece are changed, the clamping device can fully contact the surface of a workpiece, so that the clamping force is uniformly distributed, and the surface of the workpiece is prevented from being damaged.
1. The invention has low cost and simple and compact structure;
drawings
Fig. 1 is a schematic structural diagram of a translational clamp for an annular workpiece with a locking function according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjusting bolt and a pressure lever according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.
The clamping device is generally composed of a positioning element, a clamping device, a tool setting guide element, an indexing device, a connecting element, a clamping body and the like.
The clamping angle of the annular workpiece clamp in the current market can be changed along with the change of the size of a workpiece, so that the clamping force is uneven, and therefore, different annular tool clamps are required to be replaced, and the annular workpiece with a single size can be clamped, so that the utilization rate of the clamp is extremely low.
Based on the above technical problem, the present invention provides a translational adaptive clamp for an annular workpiece with a double-locking function, which is capable of adapting to workpieces with different sizes and surface flatness, and a specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings, wherein fig. 1 is a schematic structural diagram of a translational clamp for an annular workpiece with a locking function according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of an adjusting bolt and a pressing rod according to an embodiment of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an annular workpiece translation fixture with a locking function, including: the device comprises a rack 7, a push rod 14, a lever bracket 13, a lever 12, a first connecting rod 11, a first driving piece, a second driving piece, four rocking rods 4, two pressure rods 3 and a pressing block 1, wherein an opening is formed in the upper end surface of the rack 7, the upper end of the push rod 14 vertically penetrates through the lower surface of the rack 7 and extends into the rack 7, the lever bracket 13 is fixedly connected to the lower end of the rack 7, the lever 12 is arranged below the rack 7, the lower end of the lever 12 and the lower end of the push rod 14 are connected in a sliding mode along the length direction of the lever 12, the lever 12 is hinged with the lever bracket 13, the first end of the first connecting rod 11 is rotatably connected with one end, far away from the push rod 14, of the lever 12, the first driving piece is rotatably connected with the second end of the first connecting rod 11 so that the first connecting rod 11 moves along the circumferential direction, the fixed ends of the second driving pieces are connected with the push rod 14, every two rocking rods 4 are in one group, the two rocking rods 4 in the same group are arranged in parallel, the two groups of the rocking rods 4 are symmetrically arranged by taking the push rod 14 as the center, the lower extreme of rocker 4 rotates respectively with the top of push rod 14 to be connected, and the upper end of rocker 4 passes the opening and extends the up end of frame 7, and the drive end of second driving piece rotates with every rocker 4 that is located the outside and is connected, and two depression bars 3 set up respectively in the top of frame 7, and every depression bar 3 is articulated with a set of rocker 4, and briquetting 1 articulates in the lower extreme of depression bar 3.
The invention can drive the first connecting rod to move along the circumferential direction through the first driving part, thereby realizing that the lever rotates around the just bracket, the push rod which is connected with the lever in a sliding way can move up and down, and further drive the two groups of rocking rods to move up and down, meanwhile, the second driving part drives the two groups of rocking rods to respectively rotate towards the back direction, thereby enabling the two groups of rocking rods to respectively drive the pressing rods which are hinged with the rocking rods to move towards two sides while pressing downwards, realizing the clamping of the annular workpiece, and being capable of being placed on the upper side surface of the rack (the diameter size of the rack can be properly increased in practical application) as long as the diameter of the workpiece changes within a certain range, therefore, the mechanism can be self-adapted to workpieces with different sizes, because the pressing block can translate under the driving of the parallelogram, and can rotate around the rotating shaft of the pressing block, when the surface planeness of the workpiece and the size of the workpiece change, the clamping device can fully contact the surface of a workpiece, so that the clamping force is uniformly distributed, and the surface of the workpiece is prevented from being damaged.
Optionally, the first drive member comprises: the eccentric wheel bracket 9 is fixed on one side of the frame 7, the eccentric wheel 8 is hinged on the eccentric wheel bracket 9, the second end of the first connecting rod 11 is hinged with the eccentric wheel 8, and the handle 10 is fixed on the eccentric wheel 8.
The working principle is as follows: the handle 10 is operated to enable the eccentric wheel 8 to rotate anticlockwise around a rotating shaft E of the eccentric wheel, the eccentric wheel 8 drives a lever 12 to rotate anticlockwise through a first connecting rod 11 hinged with the eccentric wheel 8, the lever 12 drives a push rod 14 hinged with the lever to do linear motion downwards in a slideway of the lever, when a hinged shaft G, the hinged shaft E and a hinged shaft F are collinear, the eccentric wheel is a dead point, when a clamp tightens a workpiece 6, the first connecting rod 11 passes the dead point, under the reaction force of the rack 7 on the eccentric wheel 8, the eccentric wheel 8 cannot rotate reversely (rotate clockwise), so that the clamp has a locking function, and meanwhile, the clamp can be synchronously locked by utilizing the friction force between the eccentric wheel 8 and the rack 7, therefore, the clamp provided by the invention has a double locking function, and the pressure block 1 can be rapidly rotated inwards by utilizing the amplification effect of the lever 12 on the displacement force arm (GH < HI), the handle 10 only needs to rotate anticlockwise by 49 degrees, thereby giving up the biggest material loading and unloading space to realize fastening fast or loosen the work piece, improve work efficiency.
Optionally, the second driver comprises: second connecting rod 5, crank 17, spring 18, gyro wheel 16 and wedge 15, the first end of second connecting rod 5 is articulated with the rocker 4 that is located the outside, second connecting rod 5 passes the up end of frame 7 along the opening, the first end of crank 17 is articulated with the second end of second connecting rod 5, two cranks 17 articulate simultaneously on push rod 14, spring 18 connects between two cranks 17, gyro wheel 16 articulates in the second end of crank 17, wedge 15 is fixed in inside the frame 7, push rod 14 passes the center pin of wedge 15 and extends the up end of wedge 15, two gyro wheels 16 symmetric distribution are on two relative sides of wedge 15, gyro wheel 16 and wedge 15 roll fit.
The working principle is as follows: when the handle 10 rotates anticlockwise, two idler wheels 16 hinged with the crank 17 move obliquely downwards along the wedge-shaped block 15 to drive one crank 17 to rotate anticlockwise, the other crank 17 rotates clockwise, the crank 17 drives the rocker 4 to rotate through the second connecting rod 5, the press block 1 is driven to translate downwards to press the workpiece 6 under the action of the parallelogram mechanism, when the handle 10 rotates clockwise and loosens the workpiece under the action of the spring 18, the parallelogram mechanism drives the press block 1 to move towards the center of the workpiece 6 to make a discharging space, and discharging is facilitated.
Referring to fig. 2, an adjusting bolt 2 is connected between the pressure lever 3 and the pressing block 1, the adjusting bolt 2 vertically penetrates through one side of the pressure lever 3 close to the edge of the rack 7, and the adjusting bolt 2 is in threaded fit with the pressure lever 3.
Because the eccentric wheel 8 is locked at only one position, when the thickness of the workpiece 6 is changed, the workpieces with different thicknesses can be clamped by rotating the adjusting bolt 2.
Optionally, the upper end of the push rod 14 is fixedly connected with a horizontal plate, and the lower ends of the rockers 4 are respectively hinged to the horizontal plate.
Optionally, the size of the lower end face of the pressing block 1 is larger than that of the upper end face.
The use method and the working principle are as follows:
the handle is operated to enable the eccentric wheel to rotate anticlockwise around the rotating shaft of the eccentric wheel, the eccentric wheel drives the lever to rotate anticlockwise through the first connecting rod hinged with the eccentric wheel, and the lever drives the push rod hinged with the lever to do linear motion downwards in the slide way of the lever. Two idler wheels hinged with the cranks move along the wedge-shaped block to the oblique lower direction to drive the two cranks to rotate clockwise and anticlockwise respectively, the cranks drive the parallelogram mechanism to translate downwards to press the workpiece, and after the workpiece is clamped, the workpiece is locked by using the friction force between the eccentric wheel and the rack.
When the handle rotates clockwise and loosens the workpiece under the action of the spring, the parallelogram mechanism drives the pressing block to move towards the center of the workpiece, and a discharging space is formed so as to facilitate discharging. The pressing block can be driven by the parallelogram to move horizontally, the pressing block can rotate around the rotating shaft of the pressing block, and the adjusting bolt can change the distance between the pressing block and the workpiece, so that when the flatness of the surface of the workpiece and the size of the workpiece are changed, the pressing block can fully contact the surface of the workpiece, the clamping force is uniformly distributed, and the surface of the workpiece is prevented from being damaged.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. The utility model provides an annular work piece translation formula anchor clamps with locking function which characterized in that includes:
the upper end surface of the frame (7) is provided with an opening;
the upper end of the push rod (14) vertically penetrates through the lower surface of the rack (7) and extends into the rack (7);
the lever bracket (13) is fixedly connected to the lower end of the rack (7);
the lever (12) is arranged below the rack (7), the lever (12) is in sliding connection with the lower end of the push rod (14) along the length direction of the lever (12), and the lever (12) is hinged with the lever bracket (13);
the first end of the first connecting rod (11) is rotatably connected with one end, far away from the push rod (14), of the lever (12);
a first driving member rotatably connected to a second end of the first link (11) to move the first link (11) in a circumferential direction;
the fixed end of the second driving piece is connected with the push rod (14);
the two rocker arms (4) in the same group are arranged in parallel, the two rocker arms (4) in the two groups are symmetrically arranged by taking a push rod (14) as a center, the lower ends of the rocker arms (4) are respectively and rotatably connected with the top of the push rod (14), the upper ends of the rocker arms (4) penetrate through the openings to extend out of the upper end face of the rack (7), and the driving end of the second driving piece is rotatably connected with each group of rocker arms (4) positioned on the outer side;
the two pressure rods (3) are respectively arranged above the rack (7), and each pressure rod (3) is hinged with one group of rocking rods (4);
the pressing block (1) is hinged to the lower end of the pressing rod (3).
2. The translational annular workpiece holder with locking function as recited in claim 1, wherein said first actuating member comprises:
the eccentric wheel bracket (9) is fixed on one side of the rack (7);
the eccentric wheel (8) is hinged to the eccentric wheel bracket (9), and the second end of the first connecting rod (11) is hinged to the eccentric wheel (8).
3. The translating clamp for annular workpieces with locking function according to claim 2, characterized in that said first actuating member further comprises a handle (10), said handle (10) being fixed to said eccentric (8).
4. The translational clamp for annular workpieces with locking function as recited in claim 1, wherein said second driving member comprises:
the first end of the second connecting rod (5) is hinged with the rocker (4) positioned on the outer side, and the second connecting rod (5) penetrates through the upper end face of the rack (7) along the opening;
the first end of each crank (17) is hinged with the second end of the second connecting rod (5), and the two cranks (17) are hinged to the push rod (14) at the same time;
a spring (18) connected between the two cranks (17);
a roller (16) hinged to a second end of the crank (17);
wedge (15), be fixed in inside frame (7), push rod (14) pass the center pin of wedge (15) and extend the up end of wedge (15), two gyro wheel (16) symmetric distribution in on two sides that wedge (15) are relative, gyro wheel (16) with wedge (15) roll cooperation.
5. The translational clamp for the annular workpiece with the locking function as recited in claim 1, characterized in that an adjusting bolt (2) is connected between the compression bar (3) and the pressing block (1), the adjusting bolt (2) vertically penetrates through one side of the compression bar (3) close to the edge of the frame (7), and the adjusting bolt (2) is in threaded fit with the compression bar (3).
6. The translational clamp for annular workpieces with locking function of claim 1, characterized in that the upper end of the push rod (14) is fixedly connected with a horizontal plate, and the lower ends of the rockers (4) are respectively hinged on the horizontal plate.
7. The translational clamp for annular workpieces with locking function as claimed in claim 1, characterized in that the size of the lower end surface of the pressing block (1) is larger than that of the upper end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795206.2A CN114952673A (en) | 2022-07-07 | 2022-07-07 | Annular workpiece translation type clamp with locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795206.2A CN114952673A (en) | 2022-07-07 | 2022-07-07 | Annular workpiece translation type clamp with locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114952673A true CN114952673A (en) | 2022-08-30 |
Family
ID=82968188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210795206.2A Withdrawn CN114952673A (en) | 2022-07-07 | 2022-07-07 | Annular workpiece translation type clamp with locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114952673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116214126A (en) * | 2023-05-08 | 2023-06-06 | 哈尔滨学院 | Self-adaptive positioning and mounting device connected through press fit and using method |
| CN117154596A (en) * | 2023-10-31 | 2023-12-01 | 国网山东省电力公司高青县供电公司 | High-voltage wire traction pre-tightening device for pole tower |
-
2022
- 2022-07-07 CN CN202210795206.2A patent/CN114952673A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116214126A (en) * | 2023-05-08 | 2023-06-06 | 哈尔滨学院 | Self-adaptive positioning and mounting device connected through press fit and using method |
| CN117154596A (en) * | 2023-10-31 | 2023-12-01 | 国网山东省电力公司高青县供电公司 | High-voltage wire traction pre-tightening device for pole tower |
| CN117154596B (en) * | 2023-10-31 | 2024-02-09 | 国网山东省电力公司高青县供电公司 | High-voltage wire traction pre-tightening device for pole tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114952673A (en) | Annular workpiece translation type clamp with locking function | |
| CN213163181U (en) | Be applied to anchor clamps of tubular product multiaspect drilling processing | |
| CN109941735A (en) | Clamping device is used in a kind of mechanically deform processing | |
| CN214640014U (en) | Clamping device for metal forging | |
| CN217701048U (en) | Stamping workpiece processing location clamping device | |
| CN210676493U (en) | Material supporting device in pipe bender | |
| CN212858093U (en) | A wire-electrode cutting positioning fixture for auto parts | |
| CN215699992U (en) | 4.5 axle anchor clamps | |
| CN212760912U (en) | Forging press is used in piston processing | |
| CN214979434U (en) | Crank slider positioning and clamping device | |
| CN218856701U (en) | Tool clamp | |
| CN220515438U (en) | Combined clamp for lathe machining | |
| CN217516125U (en) | Vertical turnover mechanism | |
| CN219464445U (en) | Bending device for aluminum material processing | |
| CN217617995U (en) | Milling machine fixture | |
| CN218801064U (en) | Brake hoof plate end surface machining device | |
| CN220702541U (en) | Clamping device for rolling bearing | |
| CN217728025U (en) | High efficiency handle of a knife processing equipment | |
| CN220840038U (en) | Thin metal machined part clamping device | |
| CN217942613U (en) | Clamping tool for machining thin-wall parts | |
| CN221818409U (en) | Adsorption type screen assembling clamp | |
| CN214322460U (en) | Automatic screw locking device | |
| CN217513383U (en) | Machining clamp convenient to fix | |
| CN216234767U (en) | Battery overturning and carrying device and battery production line thereof | |
| CN219026788U (en) | Mechanical clamping jaw for numerical control machine tool |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220830 |
|
| WW01 | Invention patent application withdrawn after publication |