CN110125037B - Automatic detector for curvature of screwdriver rod - Google Patents
Automatic detector for curvature of screwdriver rod Download PDFInfo
- Publication number
- CN110125037B CN110125037B CN201910347505.8A CN201910347505A CN110125037B CN 110125037 B CN110125037 B CN 110125037B CN 201910347505 A CN201910347505 A CN 201910347505A CN 110125037 B CN110125037 B CN 110125037B
- Authority
- CN
- China
- Prior art keywords
- cutter bar
- feeding
- pushing
- telescopic
- guide rail
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an automatic detector for the flexibility of a screwdriver cutter bar, and relates to the technical field of screwdriver preparation. The cutter bar to be detected enters the material measuring mechanism through the feeding mechanism, then the screening mechanism screens the detected cutter bar according to the detection result of the material measuring mechanism to finally obtain qualified and unqualified screwdriver bar, after the cutter bar enters the material measuring mechanism, when the cutter bar rolls along the lap joint guide rail, if the rod body of the cutter bar is contacted with the test plane, the detection device outputs a first signal, and the control mechanism controls the screening mechanism to push the cutter bar to a first accommodating position; if the cutter bar body is not in contact with the test plane, the detection device outputs a second signal, and the control mechanism controls the screening mechanism to push the cutter bar to a second storage position. The whole detection process does not need manual participation, automatic detection, automatic classification and automatic recovery are realized, the detection efficiency can be obviously improved finally, and the detection precision is ensured.
Description
Technical Field
The invention relates to the technical field of screwdriver preparation, in particular to an automatic screwdriver cutter bar curvature detector.
Background
A screwdriver is a tool used to turn a screw to force it into place and consists essentially of a handle, a driver blade, and a driver bit.
In order to ensure the quality of the screwdriver and ensure the using effect, strict requirements are imposed on the bending degree of the cutter bar in the manufacturing process. However, in the manufacturing process, the screwdriver rod may have a certain degree of bending due to the material and the forming (heat treatment), and when the degree of bending exceeds a predetermined value, the coaxiality of the product may be reduced or the deformation of the outer insulating layer may be thinned, which may affect the usability and insulating performance of the screwdriver.
Because in the batch production process, the quantity of cutter arbor is numerous, all rely on the human eye to observe usually among the prior art, the randomness is very big, and is inefficient, and the quality is difficult to obtain control. How to rapidly and effectively detect the bending degree of the screwdriver rod is an urgent problem to be solved.
Disclosure of Invention
Aiming at the problem that the flexibility of the screwdriver rod is difficult to rapidly and effectively detect in practical application, the invention aims to provide an automatic detector for the flexibility of the screwdriver rod, which can automatically detect the flexibility of the screwdriver rod in batches, and has high detection efficiency, and the specific scheme is as follows:
an automatic screwdriver cutter bar bending detector comprises:
a machine platform;
the feeding mechanism is configured to enable the cutter rods to be sequentially output to the material measuring mechanism one by one from a set discharge port along a set direction;
the material testing mechanism is configured into two lapping guide rails which are respectively lapped with two ends of the cutter bar and a testing plane which is arranged between the two lapping guide rails, the planes of the two lapping guide rails, which are contacted with the cutter bar, are positioned in the same plane and are arranged in parallel with the testing plane, the distance between the plane of the lapping guide rails, which is contacted with the cutter bar, and the testing plane is not more than a standard set value, and a detecting device for detecting the contact action of the cutter bar and the testing plane is arranged on the testing plane;
the screening mechanism is configured to be connected with the material outlet end of the material testing mechanism and push the cutter bar output by the material testing mechanism to different accommodating positions according to a test result output by the material testing mechanism;
the control mechanism is configured to control and coordinate actions of the feeding mechanism, the material measuring mechanism and the screening mechanism;
when the cutter bar rolls along the lapping guide rail, if the cutter bar body is contacted with the test plane, the detection device outputs a first signal, and the control mechanism controls the screening mechanism to push the cutter bar to a first storage position; if the cutter bar body is not in contact with the test plane, the detection device outputs a second signal, and the control mechanism controls the screening mechanism to push the cutter bar to a second storage position.
Through the technical scheme, when testing the cutter bar, the cutter bar firstly enters the material testing mechanism one by one in order through the feeding mechanism, the setting mode of the material testing mechanism is perfectly matched with the requirement for detecting the curvature of the cutter bar, the automatic detection of the curvature of the cutter bar in the motion process of the cutter bar is realized, and the cutter bar is automatically classified according to the detection result, so that the detection efficiency of the curvature of the cutter bar can be greatly improved, the detection precision can be effectively guaranteed, and the detection cost is reduced.
Further, the feeding mechanism includes:
the feeding guide rail assembly comprises two feeding guide rails which are arranged in parallel and symmetrically, sliding grooves are formed in the feeding guide rails along the length direction of the feeding guide rails, the two feeding guide rails are arranged in parallel and symmetrically, openings of the sliding grooves are arranged oppositely, the distance between the two feeding guide rails is equal to the length of the cutter bar, and a feeding channel for the cutter bar to be placed side by side and to move along the direction perpendicular to the length direction of the cutter bar is formed between the two sliding grooves;
and the pushing device is configured to push the cutter bars in the feeding channel out of the feeding channel one by one to the material inlet end of the material measuring mechanism.
Through above-mentioned technical scheme, can be quick send the cutter arbor to and test in surveying the material mechanism, promote the efficiency of pay-off.
Furthermore, the feeding guide rail is obliquely arranged, one end of the feeding guide rail, which is obliquely downward, is arranged as a discharging end of the feeding channel, and the pushing device is arranged at the discharging end of the feeding channel;
the pushing device comprises:
the material pushing block is arranged on the machine table in a sliding mode, the upper surface of the material pushing block is in sliding and abutting contact with one end, inclined downwards, of the feeding guide rail, a placing groove which is matched with the cutter bar in shape and size and used for bearing the cutter bar is formed in the material pushing block, and the placing groove is formed in a direction parallel to the length direction of the cutter bar in the feeding channel;
the feeding telescopic piece is in control connection with the control mechanism, the end part of a telescopic rod of the feeding telescopic piece is connected with the side wall of the material pushing block, and the telescopic direction of the telescopic rod is perpendicular to the length direction of the placing groove;
one side wall of the placing groove, which is far away from the feeding telescopic piece, is provided with an inclined plane, and one side wall of the placing groove, which is close to the feeding telescopic piece, is provided with a vertical plane;
when the telescopic rod of the feeding telescopic piece is in an extension state, the placing groove moves to one side, far away from the feeding telescopic piece, of the feeding guide rail.
Through above-mentioned technical scheme, the cutter arbor of placing in the pay-off passageway is followed the pay-off passageway and is slided to the discharge end of pay-off passageway automatically to in entering into above-mentioned standing groove, the cutter arbor of placing in the standing groove is promoted by the ejector pad, and the outside position of material feeding passageway is released, because the tip of pay-off guide rail slides the butt with the ejector pad, leads to remaining cutter arbor to be unable the same time to be released outside the material feeding passageway, realizes the orderly output one by one of cutter arbor from this. Because the side wall of the placing groove far away from the feeding telescopic piece is set to be an inclined slope, when the cutter bar moves to the outside of the feeding channel along with the material pushing block, the material pushing block stops moving, and under the action of inertia, the cutter bar rolls out of the placing groove along the inclined slope and rolls along the surface of the material pushing block, finally leaves the feeding mechanism and enters the material measuring mechanism.
Further, feeding mechanism still keeps away from including setting up in the pay-off guide rail pay-off passageway discharge end one end put the material funnel, put the bottom of material funnel and follow the extending direction setting of pay-off guide rail and width with the width of pay-off passageway equals, the bottom position of putting the material funnel is provided with the opening, the opening with the width direction of pay-off passageway is the same and meets with the upper surface of pay-off guide rail.
Through above-mentioned technical scheme, can put a large amount of cutter arbor emissions that await measuring in the material funnel is put to the aforesaid, then in the orderly conveying of survey material mechanism one by one through above-mentioned feeding mechanism, promote the efficiency that detects.
Furthermore, a material testing flat plate is arranged on the machine table and between the lap joint guide rails, and one surface of the material testing flat plate, which is far away from the machine table, is configured as the testing plane;
one surface of the material testing flat plate, which is far away from the machine table, and one surface of one of the lap joint guide rails, which is connected with the cutter bar are provided with conducting layers;
the detection device comprises a power supply and a current/voltage detector, wherein the positive input end and the negative input end of the current/voltage detector are respectively electrically connected with the conducting layer of the material detection panel and the conducting layer on the lapping guide rail, and the power supply, the current/voltage detector, the conducting layer and the cutter bar are connected in series to form a detection loop and output a detection signal.
Through the technical scheme, whether the curvature of the cutter bar can be quickly known to meet the requirements after the cutter bar passes through the lapping guide rail, the testing mode is simple and reliable, and the testing efficiency can be remarkably improved.
Further, survey feed mechanism still including promoting the cutter arbor rolls the blevile of push of exit end from the material entry end of survey feed mechanism, blevile of push includes:
the first material pushing telescopic piece is in control connection with the control mechanism, the fixed end of the first material pushing telescopic piece is fixedly connected with the machine table, and the telescopic end of the first material pushing telescopic piece is arranged in a telescopic mode along the direction parallel to the lap joint guide rail;
the push plate is detachably connected with the telescopic end of the first material pushing telescopic piece and is positioned between the two lap joint guide rails;
the second material pushing telescopic piece is arranged on the push plate, the telescopic end of the second material pushing telescopic piece faces the material testing flat plate, and the second material pushing telescopic piece is arranged in a telescopic mode along the direction perpendicular to the material testing flat plate;
the pushing sheet is detachably arranged on the telescopic end of the second pushing telescopic piece and used for pushing the cutter bar to move along the lapping guide rail;
the first material pushing detection piece is arranged on the push plate, is in signal connection with the control mechanism, and is used for detecting the position of the push plate and outputting a position signal;
the second pushing detection piece is arranged on the push plate, is in signal connection with the control mechanism, and is used for detecting whether the cutter bar enters the lap joint guide rail or not and outputting a cutter bar detection signal;
the control mechanism receives the position signal and the cutter bar detection signal and respectively controls the first material pushing telescopic piece and the second material pushing telescopic piece to move.
Through the technical scheme, the cutter bar on the lap joint guide rail can be quickly pushed to the material outlet end of the material measuring mechanism.
Furthermore, the first material pushing detection piece and the second material pushing detection piece comprise infrared detection devices arranged on the push plate, and infrared emission ends and receiving ends of the infrared detection devices are both arranged towards the test plane;
the first material pushing telescopic piece is configured to be a material pushing cylinder, and when a telescopic rod of the first material pushing cylinder is in a maximum extension state, the push plate is positioned at one end, close to the feeding mechanism, of the test plane;
when the telescopic rod of the first material pushing cylinder is in a contraction state, the push plate is positioned at one end, far away from the feeding mechanism, of the test plane.
Through above-mentioned technical scheme, utilize infrared detection device to detect the cutter arbor position, after the cutter arbor has entered into screening mechanism, then control the push pedal and retract, promote another cutter arbor and detect, from this circulation is reciprocal, realizes detecting one by one of cutter arbor.
Further, a guide rod is fixedly arranged on the machine table along the length direction of the lap joint guide rail, a guide through hole is formed in the push plate, and the guide rod slides and penetrates through the guide through hole.
Through the technical scheme, the movement track of the push plate can be ensured, and the push sheet can push the cutter bar to move.
Further, the screening mechanism includes:
the screening plate is obliquely arranged at the material outlet end of the material measuring mechanism, one end of the screening plate, which is obliquely upward, is in lap joint with the end part of the lap joint guide rail, and the other end of the screening plate is rotationally connected with the machine table;
the rotary driving piece is arranged on the machine table, is configured to be in control connection with the control mechanism and is used for driving the screening plate to rotate;
the control mechanism receives a detection signal output by the detection device, controls the rotary driving piece to act and drives the screening plate to rotate;
when one end of the screening plate is in lap joint with the end part of the lap joint guide rail, the cutter bar output by the material outlet end of the material measuring mechanism rolls to a first accommodating position through the upper surface of the screening plate;
when one end of the screening plate is separated from the end part of the lapping guide rail, the cutter bar output by the material outlet end of the material measuring mechanism directly rolls to a second accommodating position.
Through above-mentioned technical scheme, only need control to rotate the driving piece alright with the whereabouts position of control cutter arbor, realize the differentiation of qualified and unqualified cutter arbor from this.
Further, the configuration of the rotation driving piece is a driving cylinder arranged on the machine table, the cylinder body of the driving cylinder is rotatably connected with the machine table, the telescopic rod is rotatably connected with the screening plate, and the screening plate and the machine table are driven to rotate relatively.
Through above-mentioned technical scheme, the screening that realizes the cutter arbor can be accomplished to the direct control actuating cylinder that drives, convenient and fast.
Compared with the prior art, the invention has the following beneficial effects:
(1) by arranging the feeding mechanism, the material measuring mechanism and the screening mechanism, efficient and rapid automatic detection of the curvature of the cutter bar is realized, the detection precision is uniform, and the quality of a later-stage screwdriver is favorably improved;
(2) the curvature of the cutter bar is detected in a rolling contact mode, so that the detection of the curvature of the cutter bar in the movement process is realized, and the detection efficiency is effectively improved;
(3) except that the cutter bar to be detected is placed to the material placing hopper in the whole detection process, all the other steps do not need manual participation, the automation degree is high, and the labor cost is greatly reduced.
Drawings
FIG. 1 is a first general schematic diagram of the present invention;
FIG. 2 is a second overall view of the present invention;
FIG. 3 is a schematic structural view of a feeding mechanism of the present invention;
FIG. 4 is a schematic structural diagram of a pushing device according to the present invention;
FIG. 5 is a schematic view of the material measuring mechanism of the present invention (the feeding mechanism is omitted in the figure);
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a partial schematic view of the present invention (highlighting the material measuring mechanism and sifting mechanism).
Reference numerals: 1. a feeding mechanism; 10. a feed rail assembly; 101. a feeding guide rail; 102. a feed channel; 103. a sliding groove; 11. a pushing device; 111. a material pushing block; 112. a placement groove; 113. feeding a telescopic member; 104. a baffle plate; 12. a material placing hopper; 2. a material measuring mechanism; 20. a material testing flat plate; 21. overlapping the guide rails; 22. a material pushing device; 221. a first pusher extension; 222. pushing the plate; 223. a second pusher extension; 224. pushing the sheet; 23. a guide bar; 3. a screening mechanism; 30. a screening plate; 31. a guide plate; 32. rotating the driving member; 4. a control mechanism; 5. provided is a machine platform.
Detailed Description
The invention aims to provide an automatic detector for the tortuosity of a screwdriver rod, so as to realize automatic and efficient detection of the tortuosity of the screwdriver rod.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
As shown in fig. 1 and 2, an automatic detector for the bending degree of a screwdriver rod comprises a machine table 5, a feeding mechanism 1, a material measuring mechanism 2, a screening mechanism 3 and a control mechanism 4. The cutter bar to be detected enters the material detecting mechanism 2 through the feeding mechanism 1, and then the screening mechanism 3 screens the cutter bar which is detected according to the detection result of the material detecting mechanism 2, so that qualified and unqualified screwdriver cutter bars are finally obtained.
As shown in fig. 3, the feeding mechanism 1 is configured to sequentially output a plurality of cutter bars from a set discharge port to the material measuring mechanism 2 one by one along a set direction.
In detail, as shown in fig. 3 and 4, in the present embodiment, the feeding mechanism 1 includes a feeding rail assembly 10 and a pushing device 11.
The feeding guide rail assembly 10 comprises two feeding guide rails 101 which are arranged in parallel and symmetrically, a sliding groove 103 is formed in the feeding guide rails 101 along the length direction of the feeding guide rails, the two feeding guide rails 101 are arranged in parallel and symmetrically, openings of the sliding grooves 103 are arranged oppositely, the distance between the two feeding guide rails 101 is equal to the length of the cutter bar, and a feeding channel 102 for the cutter bar to be placed side by side and to move along the length direction of the cutter bar perpendicular to is formed between the two sliding grooves 103. Preferably, in order to avoid the cutter bars from being stacked on each other during the conveying process, a pressure plate for pressing the cutter bars is further provided between the two feeding rails 101, and it should be understood that the pressure plate is mainly used to avoid the cutter bars from overlapping each other during the conveying process. In another set embodiment, the opening width of the sliding slot 103 may be set to be equivalent to the cutter bars, and the cutter bars may be only arranged side by side rather than overlapping along the length direction of the feeding channel 102.
The pushing device 11 is configured to push the cutter bars in the feeding channel 102 out of the feeding channel 102 one by one to the material inlet end of the material measuring mechanism 2.
In this embodiment, in order to simplify the difficulty of the pushing device 11, the automatic conveyance of the cutter bar in the feeding channel 102 is realized, the feeding guide rail 101 is arranged obliquely, the downward inclined end of the feeding guide rail 101 is arranged as the discharging end of the feeding channel 102, the downward sliding motion of the cutter bar is realized by using the gravity of the cutter bar, and the pushing device 11 is arranged at the discharging end of the feeding channel 102.
In detail, as shown in fig. 4, the pushing device 11 includes a pushing block 111 and a feeding telescopic member 113.
The material pushing block 111 is slidably disposed on the machine table 5, and is made of hard rubber or other insulating materials, an upper surface of the material pushing block is slidably abutted to one end of the feeding guide rail 101 inclined downward, that is, the material feeding channel 102 is blocked by the material pushing block 111, a placing groove 112 for receiving the cutter bar is disposed on the upper surface of the material pushing block 111, the shape and size of the placing groove 112 are matched with those of the cutter bar, and the direction of the placing groove 112 is parallel to the length direction of the cutter bar in the material feeding channel 102. Based on the above arrangement, in actual use, one and only one of the cutter bars located in the feeding passage 102 can be completely placed in the placing groove 112.
The feeding telescopic member 113 is in control connection with the control mechanism 4, the end of the telescopic rod is connected with the side wall of the material pushing block 111, and the telescopic direction is perpendicular to the length direction of the placing groove 112. As shown in fig. 4, the telescopic rod of the feeding telescopic member 113 has the same telescopic direction as the original movement direction of the knife bar.
In the initial state, the placing slot 112 is located between the two feeding rails 101, the opening of the placing slot 112 is communicated with the feeding channel 102, and the cutter bar in the feeding channel 102 can enter the placing slot 112. When the telescopic rod of the feeding telescopic member 113 is in an extended state, the placing groove 112 moves to the side of the feeding guide rail 101 far away from the feeding telescopic member 113.
From the above arrangement, when the material pushing block 111 slides relative to the material feeding guide rail 101, the cutter bars placed in the placing groove 112 are brought out of the material feeding channel 102, and due to the fact that the end portion of the material feeding guide rail 101 is in sliding contact with the material pushing block 111, the rest cutter bars cannot be pushed out of the material feeding channel 102 at the same time, and therefore sequential output of the cutter bars is achieved.
As shown in fig. 1 and fig. 3, a side wall of the placement groove 112 away from the feeding telescopic member 113 is set to be an inclined plane or a flat plane, and a side wall close to the feeding telescopic member 113 is set to be a vertical plane.
Based on the above arrangement, the cutter bar placed in the placement groove 112 is pushed by the pusher block 111 to be pushed out to a position outside the material feeding passage 102. Since the side wall of the placing groove 112 far from the feeding telescopic member 113 is set to be an inclined slope, when the cutter bar moves to the outside of the feeding channel 102 along with the pusher block 111, the pusher block 111 stops moving, and under the action of inertia, the cutter bar rolls out of the placing groove 112 along the inclined slope and rolls along the surface of the pusher block 111, finally leaves the feeding mechanism 1 and enters the material measuring mechanism 2.
In consideration of the difficulty of the feeding rail 101, in this embodiment, as shown in fig. 3, a baffle plate 104 is disposed at an end of the feeding rail 101 close to the discharging end of the feeding channel 102, the baffle plate 104 is disposed between the upper end surface of the feeding rail 101 and the material pushing block 111, and one side of the baffle plate is fixedly connected to the top surface of the end of the feeding rail 101, and the other side of the baffle plate is slidably abutted to the upper surface of the material pushing block 111.
In order to reduce the time for manually placing the cutter bar and improve the testing efficiency, as shown in fig. 3, the feeding mechanism 1 further comprises a material placing funnel 12 arranged on the feeding guide rail 101 and far away from the discharge end of the feeding channel 102, the bottom of the material placing funnel 12 is arranged along the extending direction of the feeding guide rail 101, the width of the material placing funnel is equal to that of the feeding channel 102, an opening is arranged at the bottom of the material placing funnel 12, and the opening is the same as the width direction of the feeding channel 102 and is connected with the upper surface of the feeding guide rail 101. Through the technical scheme, a large number of cutter bars to be tested can be arranged in the material placing hopper 12 and then sequentially fed into the material testing mechanism 2 through the feeding mechanism 1 one by one.
As shown in fig. 5 and 6, in the present invention, the material measuring mechanism 2 is configured as two overlapping guide rails 21 respectively overlapping with two ends of the cutter bar and a testing plane disposed between the two overlapping guide rails 21, the planes of the two overlapping guide rails 21 contacting with the cutter bar are located in the same plane and are disposed parallel to the testing plane, the distance between the plane where the overlapping guide rails 21 and the cutter bar contact surface are located and the testing plane is not greater than a standard set value, and the testing plane is mounted with a detecting device for detecting the contact action of the cutter bar and the testing plane. The above standard set values are defined as: when the cutter bar rolls around the axial direction of the cutter bar, the track of the movement of the rod body is in an ellipsoid shape, the larger the curvature of the cutter bar is, the longer the short axis of the ellipsoid shape is, and the standard set value is set to be the length value of the short axis of the ellipsoid shape, which is specifically the length value of the short axis corresponding to the maximum curvature allowed by the cutter bar.
In order to make the cutter bar rolling along the surface of the pusher block 111 smoothly enter the material measuring mechanism 2, the opposite end of the overlapping guide rail 21 intersects with the extension line of the feeding guide rail 101, when the pusher block 111 moves to be far away from the feeding telescopic member 113, the edge of the pusher block is connected with the overlapping guide rail 21, and the cutter bar rolls from the pusher block 111 to the overlapping guide rail 21.
As shown in fig. 6, a material testing flat plate 20 is disposed on the machine table 5 between the lap rails 21, and one surface of the material testing flat plate 20 away from the machine table 5 is configured as the testing plane.
The side of the material testing flat plate 20 far away from the machine table 5 and one side of the lapping guide rail 21 connected with the cutter bar are both provided with a conducting layer. In practical applications, the landing rail 21 and the flat plate 20 can be made of conductive materials directly.
The detection device comprises a power supply and a current/voltage detector, wherein the positive input end and the negative input end of the current/voltage detector are respectively electrically connected with the conducting layer of the material testing flat plate 20 and the conducting layer on the lapping guide rail 21, the power supply, the current/voltage detector, the conducting layer and the cutter bar are connected in series to form a detection loop, once the cutter bar is contacted with the material testing flat plate 20, the detection loop is conducted, and the current/voltage detector outputs a detection signal. The power supply can be obtained by directly adopting a storage battery or industrial electricity through a voltage reduction module. Through the technical scheme, whether the curvature of the cutter bar can be rapidly known to meet the requirements after the cutter bar passes through the lapping guide rail 21, the testing mode is simple and reliable, and the testing efficiency can be remarkably improved.
In order to facilitate the movement of the cutter bar on the lapping guide rail 21, the lapping guide rail 21 is obliquely arranged on the table top of the machine table 5.
As shown in fig. 6 and 7, further, the material testing mechanism 2 further includes a material pushing device 22 for pushing the cutter bar to roll from the material inlet end to the material outlet end of the material testing mechanism 2, and the material pushing device 22 includes: the pushing device comprises a first pushing telescopic piece 221, a pushing plate 222, a second pushing telescopic piece 223, a pushing sheet 224, a first pushing detection piece and a second pushing detection piece.
The first material pushing telescopic piece 221 is in control connection with the control mechanism 4, a fixed end of the first material pushing telescopic piece is fixedly connected with the machine table 5, and a telescopic end of the first material pushing telescopic piece is arranged in a telescopic mode in a direction parallel to the lapping guide rail 21. The push plate 222 is detachably connected to the telescopic end of the first pushing telescopic member 221 and is located between the two overlapping guide rails 21. The second pushing material telescopic member 223 is disposed on the pushing plate 222, and the telescopic end of the second pushing material telescopic member is disposed toward the material testing flat plate 20 and is arranged in a telescopic manner along a direction perpendicular to the material testing flat plate 20. The push piece 224 is detachably arranged at the telescopic end of the second pushing telescopic piece 223 and used for pushing the cutter bar to move along the lapping guide rail 21, when the second pushing telescopic piece 223 is in a contracted state, the push piece 224 is far away from the test plane, and when the second pushing telescopic piece 223 is in an extended state, the distance between the push piece 224 and the test plane is not more than the distance between the cutter bar and the test plane.
The first material pushing detection piece is arranged on the push plate 222, is in signal connection with the control mechanism 4, and is used for detecting the position of the push plate 222 and outputting a position signal. The second pushing detection piece is arranged on the push plate 222, is in signal connection with the control mechanism 4, and is used for detecting whether the cutter bar enters the lap joint guide rail 21 or not and outputting a cutter bar detection signal.
The control mechanism 4 receives the position signal and the cutter bar detection signal, and controls the first pushing telescopic member 221 and the second pushing telescopic member 223 to move respectively.
Above-mentioned structure, at the during operation, its working process is as follows: when the cutter bar enters the lapping guide rail 21, the second pushing detection piece detects the cutter bar and outputs a cutter bar detection signal, then the control mechanism 4 controls the second pushing telescopic piece 223 to extend, the pushing piece 224 is pushed downwards to a position close to the test plane, and then the first pushing telescopic piece 221 is started to push the pushing plate 222 to move along the length direction of the lapping guide rail 21. The first pushing detection piece detects the position of the pushing plate 222, the output position signal is transmitted to the control mechanism 4, when the position of the pushing plate 222 reaches the edge of the material testing flat plate 20 (at this time, the cutter bar is separated from the lapping guide rail 21), the control mechanism 4 controls the second pushing telescopic piece 223 to contract and controls the first pushing telescopic piece 221 to retract, so that the pushing plate 222 and each detection piece return to the initial position, and the next cutter bar is waited to enter the material testing mechanism 2. Based on the above technical scheme, can be located quick propelling movement of cutter arbor on the overlap joint guide rail 21 is to the material exit end of surveying feed mechanism 2 and obtain the test result.
The first material pushing detection piece comprises an infrared detection device arranged on the push plate 222, and an infrared emitting end and a receiving end of the infrared detection device are both arranged towards the test plane. The first pushing telescopic member 221 is configured as a pushing cylinder, and when the telescopic rod of the first pushing cylinder is in the maximum extension state, the push plate 222 is located at one end of the test plane close to the feeding mechanism 1. When the telescopic rod of the first pushing cylinder is in a contracted state, the push plate 222 is located at one end of the test plane, which is far away from the feeding mechanism 1. Through above-mentioned technical scheme, utilize infrared detection device to detect the cutter arbor position, after the cutter arbor has entered into screening mechanism 3, then control push pedal 222 and retract, promote another cutter arbor and detect, from this circulation is reciprocal, realizes detecting one by one of cutter arbor.
The second material pushing detection piece is configured to be arranged on a proximity switch and an infrared detection device at the material inlet end. In the invention, the first material pushing detection piece and the second material pushing detection piece can be used repeatedly.
In order to ensure the movement track of the push plate 222 and ensure that the push plate 224 can push the cutter bar to move, the machine table 5 is fixedly provided with a guide rod 23 along the length direction of the lapping guide rail 21, the push plate 222 is provided with a guide through hole, and the guide rod 23 is slidably arranged in the guide through hole.
In the present invention, the screening mechanism 3 is configured to be connected to the material outlet end of the material measuring mechanism 2, and push the cutter bar output from the material measuring mechanism 2 to different storage positions according to the test result output by the material measuring mechanism 2.
As shown in fig. 5 and 7, the sieving mechanism 3 includes: a sifting plate 30 and a rotary drive 32 for driving the sifting plate in rotation.
The screening plate 30 is obliquely arranged at the material outlet end of the material measuring mechanism 2, one end of the screening plate, which is inclined upwards, is in lap joint with the end part of the lap joint guide rail 21, and the other end of the screening plate is rotationally connected with the machine table 5. In this embodiment, it is hinged to a connecting rod disposed on the machine table 5. The rotary driving member 32 is disposed on the machine table 5, configured to be in control connection with the control mechanism 4, and configured to drive the sieving plate 30 to rotate. The control mechanism 4 receives the detection signal output by the detection device, controls the action of the rotary driving element 32, and drives the sieving plate 30 to rotate.
When one end of the screening plate 30 is lapped with the end part of the lapping guide rail 21, the cutter bar output by the material outlet end of the material measuring mechanism 2 rolls to a first accommodating position through the upper surface of the screening plate 30; when one end of the screening plate 30 is separated from the end of the lapping guide rail 21, the cutter bar output from the material outlet end of the material measuring mechanism 2 directly rolls down to the second storage position. When the cutter bar is used, only the containing box for containing the cutter bar is required to be placed at the corresponding position.
In further detail, the rotary driving member 32 is configured as a driving cylinder disposed on the machine table 5, a cylinder body of the driving cylinder is rotatably connected to the machine table 5, and the telescopic rod is rotatably connected to the sieving plate 30 to drive the sieving plate 30 and the machine table 5 to rotate relatively. Above-mentioned technical scheme, the screening that the cutter arbor can be accomplished to direct control drive actuating cylinder, convenient and fast.
In order to guide the cutter bar to fall to a set position in the falling process, a guide plate 31 is arranged on the screening plate 30, and the guide plate 31 and the screening plate 30 are integrally formed and are L-shaped integrally.
In the present invention, the control mechanism 4 is configured to control and coordinate operations of the feeding mechanism 1, the measuring mechanism 2, and the sieving mechanism 3. Specifically, the control unit 4 is configured as a microprocessor module such as a single chip microcomputer or a PLC, and has functions of signal processing and instruction output.
In the present invention, the first material pushing expansion piece 221, the second material pushing expansion piece 223 and the feeding expansion piece 113 are all configured as expansion cylinders, and the control ends of the expansion cylinders are all in control connection with the control mechanism 4, for example, the signal output end of the single chip microcomputer drives an airtight solenoid valve between the air source and the expansion cylinder through an isolation amplifying circuit, so as to control the action of the expansion cylinder.
The working process and principle of the invention are summarized as follows:
the worker places the cutter bars to be detected into the material placing hopper 12, the cutter bars enter the material feeding channel 102 one by one, and the cutter bars are sequentially pushed into the material detecting mechanism 2 one by one from the discharging end of the material feeding channel 102 through the pushing device 11. After entering the material testing mechanism 2, when the cutter bar rolls along the lapping guide rail 21, if the cutter bar body is contacted with the test plane, the detection device outputs a first signal, and the control mechanism 4 controls the screening mechanism 3 to push the cutter bar to a first accommodating position; if the cutter bar body is not contacted with the test plane, the detection device outputs a second signal, and the control mechanism 4 controls the screening mechanism 3 to push the cutter bar to a second storage position. The whole detection process does not need manual participation, automatic detection, automatic classification and automatic recovery are realized, the detection efficiency can be obviously improved finally, and the detection precision is ensured.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. An automatic detector for the bending degree of a screwdriver rod is characterized by comprising:
a machine table (5);
the feeding mechanism (1) is configured to enable a plurality of cutter bars to be sequentially output to the material measuring mechanism (2) from a set discharge port along a set direction one by one;
the material testing mechanism (2) is configured into two lapping guide rails (21) which are respectively lapped with two ends of the cutter bar and a testing plane arranged between the two lapping guide rails (21), the planes of the two lapping guide rails (21) which are contacted with the cutter bar are positioned in the same plane and are arranged in parallel with the testing plane, the distance between the lapping guide rails (21) and the plane of the cutter bar contact surface is not more than a standard set value, and a detecting device for detecting the contact action of the cutter bar and the testing plane is arranged on the testing plane;
the screening mechanism (3) is configured to be connected with the material outlet end of the material testing mechanism (2), and pushes the cutter bar output by the material testing mechanism (2) to different accommodating positions according to the test result output by the material testing mechanism (2);
the control mechanism (4) is configured to control and coordinate the actions of the feeding mechanism (1), the material measuring mechanism (2) and the screening mechanism (3);
when the cutter bar rolls along the lapping guide rail (21), if the cutter bar body is contacted with the test plane, the detection device outputs a first signal, and the control mechanism (4) controls the screening mechanism (3) to push the cutter bar to a first storage position; if the cutter bar body is not contacted with the test plane, the detection device outputs a second signal, and the control mechanism (4) controls the screening mechanism (3) to push the cutter bar to a second storage position;
the feeding mechanism (1) comprises:
the feeding guide rail assembly (10) comprises two feeding guide rails (101) which are arranged in parallel and symmetrically, sliding grooves (103) are formed in the feeding guide rails (101) along the length direction of the feeding guide rails, the two feeding guide rails (101) are arranged in parallel and symmetrically, openings of the sliding grooves (103) of the two feeding guide rails are arranged in opposite directions, the distance between the two feeding guide rails (101) is equal to the length of the cutter bar, and a feeding channel (102) for the cutter bar to be placed side by side and to move along the direction perpendicular to the length direction of the cutter bar is formed between the two sliding grooves (103);
the pushing device (11) is configured to push the cutter bars in the feeding channel (102) out of the feeding channel (102) one by one to the material inlet end of the material measuring mechanism (2);
the feeding guide rail (101) is obliquely arranged, one end, which is obliquely downward, of the feeding guide rail (101) is arranged at the discharge end of the feeding channel (102), and the pushing device (11) is arranged at the discharge end of the feeding channel (102);
the pushing device (11) comprises:
the material pushing block (111) is arranged on the machine table (5) in a sliding mode, the upper surface of the material pushing block is in sliding and abutting contact with one end, inclined downwards, of the feeding guide rail (101), a placing groove (112) which is matched with the cutter bar in shape and size and used for bearing the cutter bar is formed in the material pushing block, and the direction of the placing groove (112) is parallel to the length direction of the cutter bar in the feeding channel (102);
the feeding telescopic piece (113) is in control connection with the control mechanism (4), the end part of the telescopic rod is connected with the side wall of the material pushing block (111), and the telescopic direction of the telescopic rod is perpendicular to the length direction of the placing groove (112);
one side wall of the placing groove (112) far away from the feeding telescopic piece (113) is set to be an inclined plane, and one side wall of the placing groove close to the feeding telescopic piece (113) is set to be a vertical plane;
when the feeding device is in an initial state, the placing groove (112) is located between the two feeding guide rails (101), the opening of the placing groove (112) is communicated with the feeding channel (102), and when the telescopic rod of the feeding telescopic piece (113) is in an extension state, the placing groove (112) moves to one side, away from the feeding telescopic piece (113), of the feeding guide rails (101).
2. The automatic detector according to claim 1, wherein the feeding mechanism (1) further comprises a material placing funnel (12) disposed at one end of the feeding guide rail (101) far away from the discharging end of the feeding channel (102), the bottom of the material placing funnel (12) is disposed along the extending direction of the feeding guide rail (101) and has a width equal to the width of the feeding channel (102), and an opening is disposed at the bottom of the material placing funnel (12), and the opening is the same as the feeding channel (102) in the width direction and is connected to the upper surface of the feeding guide rail (101).
3. The automatic detector according to claim 1, wherein a material testing flat plate (20) is arranged on the machine table (5) between the two overlapping guide rails (21), and one surface of the material testing flat plate (20) far away from the machine table (5) is configured as the testing plane;
one surface of the material testing flat plate (20) far away from the machine table (5) and one surface of one of the lap joint guide rails (21) connected with the cutter bar are provided with conducting layers;
the detection device comprises a power supply and a current/voltage detector, wherein the positive input end and the negative input end of the current/voltage detector are respectively electrically connected with the conducting layer of the material detection flat plate (20) and the conducting layer on the lapping guide rail (21), and the power supply, the current/voltage detector, the conducting layer and the cutter bar are connected in series to form a detection loop and output a detection signal.
4. The automatic detector according to claim 3, wherein the material-measuring mechanism (2) further comprises a pushing device (22) for pushing the cutter bar to roll from a material-inlet end to an material-outlet end of the material-measuring mechanism (2), the pushing device (22) comprising:
the first material pushing telescopic piece (221) is in control connection with the control mechanism (4), the fixed end of the first material pushing telescopic piece is fixedly connected with the machine table (5), and the telescopic end of the first material pushing telescopic piece is arranged in a telescopic mode along the direction parallel to the lapping guide rail (21);
the push plate (222) is detachably connected with the telescopic end of the first material pushing telescopic piece (221) and is positioned between the two lap joint guide rails (21);
the second material pushing telescopic piece (223) is arranged on the push plate (222), the telescopic end of the second material pushing telescopic piece faces the material testing flat plate (20), and the second material pushing telescopic piece is arranged in a telescopic mode along the direction perpendicular to the material testing flat plate (20);
the push sheet (224) is detachably arranged on the telescopic end of the second push telescopic piece (223) and is used for pushing the cutter bar to move along the lap joint guide rail (21);
the first material pushing detection piece is arranged on the push plate (222), is in signal connection with the control mechanism (4), and is used for detecting the position of the push plate (222) and outputting a position signal;
the second pushing detection piece is arranged on the push plate (222), is in signal connection with the control mechanism (4), and is used for detecting whether the cutter bar enters the lapping guide rail (21) or not and outputting a cutter bar detection signal;
the control mechanism (4) receives the position signal and the cutter bar detection signal and respectively controls the first material pushing telescopic piece (221) and the second material pushing telescopic piece (223) to act.
5. The automated inspection machine of claim 4, wherein the first and second push detection members comprise an infrared detection device disposed on the push plate (222), and an infrared emitting end and a receiving end of the infrared detection device are both disposed toward the test plane;
the first material pushing telescopic piece (221) is configured to be a first material pushing cylinder, and when a telescopic rod of the first material pushing cylinder is in a maximum extension state, the push plate (222) is located at one end, close to the feeding mechanism (1), of the test plane;
when the telescopic rod of the first material pushing cylinder is in a contraction state, the push plate (222) is positioned at one end, far away from the feeding mechanism (1), of the testing plane.
6. The automatic detector according to claim 4, wherein the machine table (5) is fixedly provided with a guide rod (23) along a length direction of the lapping guide rail (21), the push plate (222) is provided with a guide through hole, and the guide rod (23) is slidably arranged in the guide through hole.
7. The automatic measuring machine according to claim 1, characterized in that said sifting mechanism (3) comprises:
the screening plate (30) is obliquely arranged at the material outlet end of the material measuring mechanism (2), one end of the screening plate, which is obliquely upward, is in lap joint with the end part of the lap joint guide rail (21), and the other end of the screening plate is rotatably connected with the machine table (5);
the rotary driving part (32) is arranged on the machine table (5), is configured to be in control connection with the control mechanism (4), and is used for driving the screening plate (30) to rotate;
the control mechanism (4) receives a detection signal output by the detection device, controls the action of the rotary driving part (32) and drives the screening plate (30) to rotate;
when one end of the screening plate (30) is in lap joint with the end part of the lap joint guide rail (21), the cutter bar output by the material outlet end of the material measuring mechanism (2) rolls to a first storage position through the upper surface of the screening plate (30);
when one end of the screening plate (30) is separated from the end part of the lapping guide rail (21), the cutter bar output by the material outlet end of the material measuring mechanism (2) directly rolls to a second accommodating position.
8. The automatic detecting instrument according to claim 7, wherein the rotary driving member (32) is configured as a driving cylinder disposed on the machine table (5), a cylinder body of the driving cylinder is rotatably connected to the machine table (5), and the telescopic rod is rotatably connected to the sieving plate (30) to drive the sieving plate (30) and the machine table (5) to rotate relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347505.8A CN110125037B (en) | 2019-04-28 | 2019-04-28 | Automatic detector for curvature of screwdriver rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347505.8A CN110125037B (en) | 2019-04-28 | 2019-04-28 | Automatic detector for curvature of screwdriver rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110125037A CN110125037A (en) | 2019-08-16 |
| CN110125037B true CN110125037B (en) | 2021-07-13 |
Family
ID=67575270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347505.8A Active CN110125037B (en) | 2019-04-28 | 2019-04-28 | Automatic detector for curvature of screwdriver rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110125037B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589729A (en) * | 2020-04-28 | 2020-08-28 | 湖北隐冠轴业有限公司 | Automatic shaft detection and correction device |
| CN115338132B (en) * | 2022-08-30 | 2023-05-26 | 深圳市立能威微电子有限公司 | Desktop-level small-sized chip test sorting equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1150048A1 (en) * | 1983-09-14 | 1985-04-15 | Всесоюзный Научно-Исследовательский Институт Методики И Техники Разведки | Apparatus for sorting tubes by curviture |
| JPS60120202A (en) * | 1983-12-02 | 1985-06-27 | Kawasaki Steel Corp | Flatness measuring method of length of plate material in longitudinal direction |
| CN104596399A (en) * | 2014-12-31 | 2015-05-06 | 大连运明自动化技术有限公司 | Curvature detection device |
| CN104776783A (en) * | 2015-04-15 | 2015-07-15 | 石家庄钢铁有限责任公司 | Bar bending degree measuring instrument |
| CN105157555A (en) * | 2015-07-10 | 2015-12-16 | 河北凌云机电有限公司 | Straight tube product member flexibility examination sorting device |
| CN106526206A (en) * | 2015-09-10 | 2017-03-22 | 北京百慕航材高科技股份有限公司 | Arrow shaft automatic flexometer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3728581B2 (en) * | 1999-11-26 | 2005-12-21 | 株式会社日立製作所 | Metal sorting and recovery apparatus and method |
| CN203908746U (en) * | 2014-06-13 | 2014-10-29 | 林同棪国际工程咨询（中国）有限公司 | Bridge flexibility tester |
-
2019
- 2019-04-28 CN CN201910347505.8A patent/CN110125037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1150048A1 (en) * | 1983-09-14 | 1985-04-15 | Всесоюзный Научно-Исследовательский Институт Методики И Техники Разведки | Apparatus for sorting tubes by curviture |
| JPS60120202A (en) * | 1983-12-02 | 1985-06-27 | Kawasaki Steel Corp | Flatness measuring method of length of plate material in longitudinal direction |
| CN104596399A (en) * | 2014-12-31 | 2015-05-06 | 大连运明自动化技术有限公司 | Curvature detection device |
| CN104776783A (en) * | 2015-04-15 | 2015-07-15 | 石家庄钢铁有限责任公司 | Bar bending degree measuring instrument |
| CN105157555A (en) * | 2015-07-10 | 2015-12-16 | 河北凌云机电有限公司 | Straight tube product member flexibility examination sorting device |
| CN106526206A (en) * | 2015-09-10 | 2017-03-22 | 北京百慕航材高科技股份有限公司 | Arrow shaft automatic flexometer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110125037A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110125037B (en) | Automatic detector for curvature of screwdriver rod | |
| CN108787501B (en) | Sorting equipment of cylinder lithium cell | |
| CN108356949A (en) | The automatic fragmentation equipment of thick bamboo tube | |
| CN205733236U (en) | Sheet shearing device | |
| CN206194697U (en) | Type silicon chip or battery piece detect sorter in succession | |
| CN110104248A (en) | A kind of gravity type test braider | |
| CN114939694B (en) | Roller detection conveying system and working method thereof | |
| CN217515474U (en) | Automatic sorting and conveying device for medicines | |
| CN102615048A (en) | Soft magnetic size automatic sorting device | |
| CN109530252A (en) | Full-automatic bearing bushing detection machine | |
| CN109351667B (en) | Battery core sorting machine | |
| CN108340141A (en) | A kind of automation equipment for diode assembly | |
| CN216420232U (en) | Automatic detection device of electrical engineering | |
| CN107321635B (en) | Pin checking machine | |
| CN113102963B (en) | Automatic assembly production line for button switches | |
| CN211678844U (en) | Automatic size and classification detection device | |
| CN213616867U (en) | High-speed precision slitting paper cutter | |
| CN213617003U (en) | Agent board feeding mechanism | |
| CN211602967U (en) | Battery case side defect detection device based on machine vision | |
| CN213377933U (en) | Workpiece size detection system | |
| CN108325870A (en) | A kind of acoustic pressure detects selection equipment automatically | |
| CN109530245B (en) | Terminal cuts testing arrangement | |
| CN210024139U (en) | Cutting system and letter sorting system thereof | |
| CN111077160A (en) | Battery case side defect detection device based on machine vision | |
| CN219771183U (en) | Sheet product feeding device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |