CN214352417U

CN214352417U - Snatch structure, snatch mechanism and scanning device of detecting a flaw

Info

Publication number: CN214352417U
Application number: CN202023115737.8U
Authority: CN
Inventors: 王蒙; 丁颖; 边志宏; 赵普民; 王洪昆; 王文刚; 王萌; 焦杨; 马瑞峰; 陈亮; 吕松
Original assignee: Shenhua Railway Equipment Co Ltd
Current assignee: Shenhua Railway Equipment Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-08
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to a snatch structure, snatch mechanism and flaw detection and sweep and look into device, snatch the in-process, start respectively that first snatch the subassembly and snatch the first driver in the subassembly with the second, order about the tongs that corresponds separately and remove to make it draw close each other, in order to accomplish snatching of work piece. When the driving stroke of the first driver is not enough to enable the two grippers to act on the workpiece, at least one of the first grabbing component and the second grabbing component slides relative to the mounting seat through the adjusting component, the distance between the two grabbing components is changed, the first grabbing component and the second grabbing component keep a proper distance, and therefore the two grippers can stably act on the workpiece under the driving of the first driver. Therefore, the grabbing structure overcomes the driving stroke of the first driver by changing the distance between the first grabbing component and the second grabbing component, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces with different sizes.

Description

Snatch structure, snatch mechanism and scanning device of detecting a flaw

Technical Field

The utility model relates to a nondestructive test technical field especially relates to snatch the structure, snatch the mechanism and the device of scanning of detecting a flaw.

Background

The nondestructive testing is a method for inspecting and testing the structure, properties, state, type, properties, quantity, shape, position, size, distribution and changes of defects inside and on the surface of a test piece by taking a physical or chemical method as a means and by means of modern technology and equipment and by utilizing the changes of thermal, acoustic, optical, electrical, magnetic and other reactions caused by the abnormal structure or the existence of the defects in the material on the premise of not damaging or not influencing the service performance of the tested object and not damaging the internal structure of the tested object.

Nondestructive testing is particularly important for safe operation of mechanical parts, for example, a bearing used by a railway vehicle, the quality of the railway bearing is an important part for ensuring the safe operation of railway locomotives, vehicles and motor trains (collectively referred to as railway vehicles), and the inner ring and the outer ring of the bearing realize high-speed relative motion through rollers. The bearing is installed on the railway vehicle, and the axle rotates on the steel rail at a high speed through the bearing, so that the high-speed running of the train is realized. Due to the existence of the internal defects of the bearing, the bearing can generate fatigue defects with main characteristics of stripping and cracking in the using process, particularly under the conditions of high gravity and high speed, and even can generate faults such as fracture, strain and the like seriously, so that accidents such as train overturning, derailing and the like are caused.

In the flaw detection process, the conventional device usually adopts a gripper structure, and the grippers on the two sides are driven by an air cylinder to be close to each other so as to grip a workpiece. However, the gripper structure is often limited by the piston stroke of the cylinder itself, and cannot be applied to workpieces with different volumes. When the maximum stroke of the piston of the air cylinder cannot touch the workpiece, the gripper structure cannot stably grip the workpiece, and at the moment, the gripper structure needs to replace the air cylinder with a larger stroke, so that the equipment cost in the detection process is increased, and the detection efficiency of the workpiece is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the grabbing structure, the grabbing mechanism and the flaw detection scanning device are needed to be provided, the application range of workpiece grabbing can be effectively improved, the equipment cost in the detection process is reduced, and the detection efficiency of workpieces is improved.

A grasping configuration, comprising: a mounting seat; the device comprises a first grabbing component and a second grabbing component, wherein the first grabbing component and the second grabbing component are arranged on an installation seat at intervals, and at least one of the first grabbing component and the second grabbing component can slide relative to the installation seat, wherein the first grabbing component and the second grabbing component respectively comprise a first base, a first driver and a grabbing hand connected with an output shaft of the first driver, and the first driver is arranged on the first base; and the adjusting component is arranged on the mounting seat and used for adjusting the distance between the first grabbing component and the second grabbing component.

In the grabbing process, the grabbing structure respectively starts the first drivers in the first grabbing component and the second grabbing component to drive the corresponding grabs to move and to make the corresponding grabs close to each other so as to complete grabbing of the workpiece. When the driving stroke of the first driver is not enough to enable the two grippers to act on the workpiece, at least one of the first grabbing component and the second grabbing component slides relative to the mounting seat through the adjusting component, the distance between the two grabbing components is changed, the first grabbing component and the second grabbing component keep a proper distance, and therefore the two grippers can stably act on the workpiece under the driving of the first driver. Therefore, the grabbing structure overcomes the driving stroke of the first driver by changing the distance between the first grabbing component and the second grabbing component, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces of different sizes, so that the application range of workpiece grabbing is widened, and the workpiece grabbing efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced.

In one embodiment, the adjusting assembly comprises an adjusting wheel and an adjusting piece connected with the adjusting wheel, the adjusting piece is mounted on the mounting seat, and the adjusting piece is used for driving at least one of the first grabbing assembly and the second grabbing assembly to slide relative to the mounting seat.

In one embodiment, the adjusting member is an adjusting screw, the adjusting screw is rotatably mounted on the mounting seat, and at least one first base is screwed on the adjusting screw and is in guiding fit with the mounting seat.

In one embodiment, a first guide portion is arranged on the first base, and a second guide portion which is matched with the first guide portion in a guiding mode is arranged on the mounting seat.

In one embodiment, a guide member is arranged on the first base, and a guide groove which is matched with the guide member in a guiding way is arranged on the hand grip.

In one embodiment, the gripping portion is provided with a groove.

In one embodiment, a connecting piece is arranged on the first base, and the first driver is arranged on the connecting piece.

The utility model provides a snatch mechanism, includes first removal structure, second removal structure and above arbitrary one the structure of snatching, the second removal structure is installed on the first removal structure, the mount pad is installed on the second removal structure, first removal structure is used for ordering about the second removal structure removes along first direction, the second removal structure is used for ordering about the structure of snatching removes along the second direction, first direction with the second direction is crossing perpendicularly.

The grabbing mechanism adopts the grabbing structure, and in the grabbing process, the grabbing structures respectively move along two different directions through the first moving structure and the second moving structure, so that the grabbing structures move to the grabbing stations; and then, respectively starting first drivers in the first grabbing component and the second grabbing component to drive the corresponding grabbers to move and to mutually approach the grabbers so as to complete grabbing of the workpiece. When the driving stroke of the first driver is not enough to enable the two grippers to act on the workpiece, at least one of the first grabbing component and the second grabbing component slides relative to the mounting seat through the adjusting component, the distance between the two grabbing components is changed, the first grabbing component and the second grabbing component keep a proper distance, and therefore the two grippers can stably act on the workpiece under the driving of the first driver. Therefore, the grabbing structure overcomes the driving stroke of the first driver by changing the distance between the first grabbing component and the second grabbing component, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces of different sizes, so that the application range of workpiece grabbing is widened, and the workpiece grabbing efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced.

The utility model provides a scanning device detects a flaw, its characterized in that includes positioning mechanism, the mechanism of detecting a flaw and above the mechanism of snatching, snatch the mechanism and be used for snatching the work piece extremely on the positioning mechanism, positioning mechanism is used for right the work piece is fixed a position, the mechanism of detecting a flaw is used for detecting a flaw to the work piece after the location.

The flaw detection scanning device adopts the above grabbing structure, and in the grabbing process, the first drivers in the first grabbing component and the second grabbing component are respectively started to drive the corresponding grippers to move and mutually approach each other, so that the grabbing of the workpiece is completed. When the driving stroke of the first driver is not enough to enable the two grippers to act on the workpiece, at least one of the first grabbing component and the second grabbing component slides relative to the mounting seat through the adjusting component, the distance between the two grabbing components is changed, the first grabbing component and the second grabbing component keep a proper distance, and therefore the two grippers can stably act on the workpiece under the driving of the first driver. Therefore, the grabbing structure overcomes the driving stroke of the first driver by changing the distance between the first grabbing component and the second grabbing component, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces of different sizes, so that the application range of workpiece grabbing is widened, and the workpiece grabbing efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced.

In one embodiment, the positioning mechanism comprises: a second base; the positioning assemblies are arranged on the second base and comprise a base and positioning pieces arranged on the base in a sliding mode, and the positioning pieces are matched with each other to abut against a workpiece and position the workpiece; the at least two positioning pieces are in transmission connection with the transmission structure, and when the transmission structure moves, the at least two positioning pieces are used for moving towards or away from a workpiece; and an output shaft of the second driver is connected with the transmission structure, and the second driver is used for driving the transmission structure to move.

In one embodiment, the flaw detection mechanism comprises a third moving structure and a flaw detection structure, the flaw detection structure is mounted on the third moving structure, the third moving structure is used for driving the flaw detection structure to approach the workpiece, and the flaw detection structure is used for performing flaw detection on the workpiece.

In one embodiment, the flaw detection scanning device further comprises a detection room, the positioning mechanism and the flaw detection mechanism are both installed in the detection room, a through opening is formed in the detection room, and the grabbing structure is used for grabbing the workpiece onto the positioning assembly through the through opening.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a grasping mechanism according to an embodiment;

FIG. 2 is a schematic view of a grasping configuration according to an embodiment;

FIG. 3 is a schematic diagram of the first gripper assembly or the second gripper assembly according to one embodiment;

FIG. 4 is a schematic structural diagram of a flaw detection scanning apparatus according to an embodiment;

FIG. 5 is a schematic diagram showing an internal structure of the flaw detection scanning apparatus according to one embodiment;

FIG. 6 is a perspective view of the positioning mechanism configuration described in one embodiment;

FIG. 7 is another perspective view of the positioning mechanism configuration described in one embodiment;

FIG. 8 is a schematic view of an embodiment of a positioning mechanism with exposed drive and driven gears;

FIG. 9 is a schematic view of a positioning member according to an embodiment;

FIG. 10 is a schematic view of a flaw detection mechanism according to one embodiment;

FIG. 11 is a schematic view of a flaw detection configuration described in one embodiment.

100. The grasping mechanism, 110, the first moving structure, 120, the second moving structure, 130, the grasping structure, 131, the mounting seat, 1311, the second guide portion, 132, the first grasping assembly, 1321, the first base, 1322, the first actuator, 1323, the hand grip, 13231, the grasping portion, 13232, the groove, 1324, the guide, 1325, the guide groove, 1326, the first guide portion, 1327, the connecting member, 133, the second grasping assembly, 140, the adjusting assembly, 141, the adjusting member, 142, the adjusting wheel, 200, the positioning mechanism, 210, the second base, 211, the shaft hole, 220, the positioning assembly, 221, the base, 222, the positioning member, 2221, the first interference surface, 2222, the second interference surface, 223, the sliding member, 224, the support, 230, the transmission structure, 231, the first transmission member, 2311, the first bevel gear, 232, the second transmission member, 2321, the gear, 241, the second actuator, 130, the grasping structure, 131, the mounting seat, 1311, the second guide groove, the guide groove, 1325, the guide groove, 1326, the guide portion, the second guide portion, the second positioning member, 220, the support member, the support member, the base, the support, the base, and the base, the positioning member, and the positioning member, and the positioning member, and the positioning member, and the positioning member, the second positioning member, the second positioning, Driven gear, 250, third driver, 251, driving gear, 300, detection room, 310, pass gate, 400, inspection mechanism, 410, third mobile structure, 411, first mobile assembly, 412, second mobile assembly, 420, inspection structure, 421, third base, 422, fourth driver, 423, swing assembly, 4231, first swing wheel, 4232, second swing wheel, 4233, driving rod, 424, probe, 500, controller, 600, display screen.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1 and fig. 2, a grabbing structure 130 includes: a mounting seat 131, a first grabbing component 132, a second grabbing component 133 and an adjusting component 140. The first grabbing component 132 and the second grabbing component 133 are disposed on the mounting base 131 at intervals, and at least one of the first grabbing component 132 and the second grabbing component 133 can slide relative to the mounting base 131. The first and

second grasping elements

132 and 133 each include a first base 1321, a first actuator 1322, and a hand grip 1323 coupled to an output shaft of the first actuator 1322. The first actuator 1322 is mounted on the first base 1321. The adjusting assembly 140 is mounted on the mounting seat 131, and the adjusting assembly 140 is used for adjusting the distance between the first grabbing assembly 132 and the second grabbing assembly 133.

In the grabbing process, the grabbing structure 130 respectively activates the first actuators 1322 of the first grabbing component 132 and the second grabbing component 133 to drive the corresponding hand grips 1323 to move and move together, so as to complete grabbing of the workpiece. When the driving stroke of the first driver 1322 is insufficient to allow the two grippers 1323 to act on the workpiece, the distance between the two gripper assemblies is changed by adjusting the assembly 140 so that at least one of the first gripper assembly 132 and the second gripper assembly 133 slides relative to the mounting block 131, so that the first gripper assembly 132 and the second gripper assembly 133 maintain a proper distance therebetween, and thus the two grippers 1323 can stably act on the workpiece under the driving of the first driver 1322. Therefore, the grabbing structure 130 overcomes the driving stroke of the first driver 1322 by changing the distance between the first grabbing component 132 and the second grabbing component 133, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces with different sizes, so that the application range of workpiece grabbing is widened, and the workpiece detection efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced.

It should be noted that when the first grasping element 132 and the second grasping element 133 are disposed on the mounting seat 131 at intervals, the two hand grips 1323 are disposed in opposite directions, that is, the two hand grips 1323 can move toward each other by the respective first actuators 1322. The driving stroke of the first actuator 1322 refers to an amount of extension of a piston in an apparatus such as an air cylinder, a hydraulic cylinder, or an electric cylinder, and the maximum driving stroke is the maximum amount of extension of the piston in the apparatus.

It should be further noted that the sliding of at least one of the first gripper assembly 132 and the second gripper assembly 133 relative to the mounting seat 131 is understood as: a first grasping element 132; or a second grasping assembly 133; alternatively, the first gripper assembly 132 and the second gripper assembly 133 can slide on the mounting seat 131. Meanwhile, the adjusting assembly 140 can adjust the distance between the first grabbing assembly 132 and the second grabbing assembly 133 in various ways, such as: the adjusting assembly 140 can move on the mounting seat 131, and one of the first grabbing assembly 132 and the second grabbing assembly 133 is pushed by the movement; alternatively, the adjustment assembly 140 can be rotated on the mounting base 131 to push one of the first and second grasping

assemblies

132 and 133, etc., using a lead screw driving principle.

Alternatively, the first actuator 1322 is an air cylinder, a hydraulic cylinder, an electric cylinder, or the like.

Further, referring to fig. 2, the adjusting assembly 140 includes an adjusting wheel 142 and an adjusting member 141 connected to the adjusting wheel 142. The adjusting member 141 is mounted on the mounting seat 131, and the adjusting member 141 is used for driving at least one of the first grabbing component 132 and the second grabbing component 133 to slide relative to the mounting seat 131. It can be seen that, during the adjustment process, the adjustment wheel 142 is rotated or pushed to move the adjustment member 141 on the mounting seat 131, for example, the adjustment member 141 is rotated or moved on the mounting seat 131, so that one of the first grabbing assembly 132 and the second grabbing assembly 133 slides to change the distance therebetween.

Further, referring to fig. 2, the adjusting member 141 is an adjusting screw. The adjusting screw is rotatably mounted on the mounting seat 131. The at least one first base 1321 is screwed on the adjusting screw and is in guiding fit with the mounting seat 131, so that the adjusting wheel 142 is rotated, the adjusting screw is rotated on the mounting seat 131, and the at least one first base 1321 is driven to slide by using the screw transmission principle, thereby changing the distance between the first grabbing component 132 and the second grabbing component 133.

The purpose of guiding and engaging the first base 1321 with the mounting seat 131 is to: when the adjusting screw is prevented from being rotated, the first base 1321 also rotates along with the adjusting screw, so that the first base 1321 moves on the adjusting screw; second, the movement of the first base 1321 is ensured to be more stable.

Specifically, referring to fig. 2, the two first bases 1321 are screwed on the adjusting screw, so that when the adjusting screw rotates, the two first bases 1321 move synchronously, and the distance between the first grabbing component 132 and the second grabbing component 133 is adjustable. Of course, in order to move the two first bases 1321 closer to each other, two threads with different turning directions need to be arranged on the adjusting screw rod.

In one embodiment, referring to fig. 2, the first base 1321 is provided with a first guiding portion 1326. Be equipped with on mount pad 131 with first guide 1326 direction cooperation second guide part 1311, like this, cooperate with second guide part 1311 through first guide part 1326 for the regulation of interval between first grabbing subassembly 132 and the second grabbing subassembly 133 is more stable.

Alternatively, the first guide portion 1326 is a guide block structure, and the second guide portion 1311 is a guide groove structure; alternatively, the first guide portion 1326 has a guide groove structure, and the second guide portion 1311 has a guide block structure.

In one embodiment, referring to fig. 3, the first base 1321 is provided with a guiding element 1324. The hand grip 1323 is provided with a guide slot 1325 which is in guiding engagement with the guide 1324, so that the hand grip 1323 is smoothly extended by the driving of the first driver 1322 through the engagement of the guide 1324 with the guide slot 1325, thereby enabling the gripping structure 130 to stably grip the workpiece.

Specifically, referring to fig. 3, two guiding

elements

1324 and 1325 are provided, and the two guiding elements 1324 are located at two opposite sides of the first driver 1322.

In one embodiment, referring to FIG. 3, the hand grip 1323 has a gripping portion 13231 and the gripping portion 13231 has a recess 13232, which allows the hand grip 1323 to more stably grip the workpiece.

Further, referring to fig. 3, at least two catching portions 13231 are provided. At least two portions 13231 that snatch set up along the direction of height interval of portion 13231 that snatchs, improve greatly and snatch the dynamics.

In one embodiment, referring to fig. 3, the first base is provided with a connecting member 1327. The first driver 1322 is installed on the connecting member 1327, so that the first driver 1322 is stably installed to ensure stable driving of the grip 1323.

In one embodiment, referring to fig. 1, a grabbing mechanism 100 includes a first moving structure 110, a second moving structure 120 and a grabbing structure 130 in any of the above embodiments. The second moving structure 120 is mounted on the first moving structure 110. The mounting seat 131 is mounted on the second moving structure 120. The first moving structure 110 is used to drive the second moving structure 120 to move along the first direction. The second moving mechanism 120 is used to drive the grabbing mechanism 130 to move along the second direction. The first direction intersects the second direction.

The grabbing mechanism 100 adopts the grabbing structure 130, and in the grabbing process, the grabbing structure 130 moves along two different directions through the first moving structure 110 and the second moving structure 120, so that the grabbing structure 130 moves to a grabbing station; then, the first actuators 1322 of the first gripper assembly 132 and the second gripper assembly 133 are respectively actuated to move the corresponding grippers 1323 toward each other, thereby completing the gripping of the workpiece. When the driving stroke of the first driver 1322 is insufficient to allow the two grippers 1323 to act on the workpiece, the distance between the two gripper assemblies is changed by adjusting the assembly 140 so that at least one of the first gripper assembly 132 and the second gripper assembly 133 slides relative to the mounting block 131, so that the first gripper assembly 132 and the second gripper assembly 133 maintain a proper distance therebetween, and thus the two grippers 1323 can stably act on the workpiece under the driving of the first driver 1322. Therefore, the grabbing structure 130 overcomes the driving stroke of the first driver 1322 by changing the distance between the first grabbing component 132 and the second grabbing component 133, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces with different sizes, so that the application range of workpiece grabbing is widened, and the workpiece detection efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced.

It should be noted that the intersection of the first direction and the second direction is understood as: the driving directions of the first moving structure 110 and the second moving structure 120 are different, so that the grasping structure 130 can move in two directions. The first direction and the second direction can be crossed at an acute angle or perpendicularly.

Specifically, referring to fig. 1, the first direction and the second direction are perpendicular to each other. The first moving structure 110 and the second moving structure 120 are linear modules, and the grabbing structure 130 moves along the first direction and the second direction respectively by using a screw rod transmission principle. Of course, in other embodiments, the first moving structure 110 and the second moving structure 120 may be air cylinders or hydraulic cylinders.

In one embodiment, referring to fig. 1, 4 and 5, a flaw detection scanning apparatus includes a positioning mechanism 200, a flaw detection mechanism 400 and a gripping mechanism 100. The grabbing mechanism 100 is used for grabbing the workpiece onto the positioning mechanism 200, and the positioning mechanism 200 is used for positioning the workpiece. The flaw detection mechanism 400 is used for flaw detection of the positioned workpiece.

In the flaw detection scanning device, the above grabbing structure 130 is adopted, and in the grabbing process, the first drivers 1322 in the first grabbing component 132 and the second grabbing component 133 are respectively started to drive the respective corresponding hand grips 1323 to move and to be close to each other, so as to complete the grabbing of the workpiece. When the driving stroke of the first driver 1322 is insufficient to allow the two grippers 1323 to act on the workpiece, the distance between the two gripper assemblies is changed by adjusting the assembly 140 so that at least one of the first gripper assembly 132 and the second gripper assembly 133 slides relative to the mounting block 131, so that the first gripper assembly 132 and the second gripper assembly 133 maintain a proper distance therebetween, and thus the two grippers 1323 can stably act on the workpiece under the driving of the first driver 1322. Therefore, the grabbing structure 130 overcomes the driving stroke of the first driver 1322 by changing the distance between the first grabbing component 132 and the second grabbing component 133, and only needs to adjust the distance between the first grabbing component and the second grabbing component when facing workpieces with different sizes, so that the application range of workpiece grabbing is widened, and the workpiece detection efficiency is improved. Meanwhile, the driving device does not need to be replaced in the detection process, so that the equipment cost in the detection process is effectively reduced. In addition, during flaw detection, a workpiece is firstly grabbed onto the positioning mechanism 200 through the grabbing mechanism 100; then, positioning the workpiece through the positioning mechanism 200; after positioning, starting the flaw detection mechanism 400 to perform flaw detection on the workpiece; finally, the workpiece is again grasped and taken out by the grasping mechanism 100.

Further, referring to fig. 6, the positioning mechanism 200 includes a second base 210, a positioning assembly 220, a transmission structure 230, and a second driver 240. At least two positioning components 220 are mounted on the second base 210, wherein the positioning components 220 include a base 221 and positioning components 222 mounted on the base 221 in a sliding manner, and the at least two positioning components 222 are matched to abut against the workpiece and position the workpiece. The at least two positioning members 222 are in transmission connection with the transmission structure 230, and when the transmission structure 230 moves, the at least two positioning members 222 are used for moving toward or away from the workpiece. The output shaft of the second driver 240 is connected to the transmission structure 230, and the second driver 240 is used for driving the transmission structure 230 to move.

The positioning mechanism 200 is used for placing the workpiece on at least two positioning assemblies 220 in the process of fixing the workpiece; the second driver 240 is started to drive the transmission structure 230 to perform corresponding activities; the movable transmission structure 230 drives the at least two positioning members 222 to move closer to each other, so that each positioning member 222 abuts against the outer diameter surface of the workpiece or the inner diameter surface of the workpiece, thereby positioning the workpiece on the positioning assembly 220. Because the positioning mechanism 200 utilizes the transmission structure 230 to transmit the positioning elements 222, so that at least two positioning elements 222 can slide on the corresponding bases 221 simultaneously, in the positioning process, the positioning of the workpiece can be completed only by starting the second driver 240 and driving the transmission structure 230 to move, so that the workpiece can be positioned quickly, and the nondestructive testing efficiency of the workpiece can be effectively improved. And the sliding of all the positioning pieces 222 is controlled by the transmission structure 230, so that the stability of the transmission force on each positioning piece 222 is ensured, the stress of the workpiece is balanced in each positioning process, the workpiece is stabilized on the positioning component 220, the workpiece is prevented from moving in the detection process, and the nondestructive detection precision of the workpiece is improved. In addition, since at least two positioning elements 222 are connected with the transmission structure 230, when the transmission structure 230 moves, the positioning elements 222 slide on the corresponding bases 221 synchronously, that is, the moving amount of each positioning element 222 on the bases 221 is the same, so that the workpiece can be positioned at a specific position in each operation, which is beneficial to improving the reliability of the detection result; meanwhile, the center positioning of the workpiece is realized by the positioning mechanism 200 of the embodiment.

It should be noted that the transmission connection of the present embodiment is understood as: when the transmission structure 230 moves, for example, the transmission structure 230 rotates or moves back and forth, the positioning element 222 slides on the base 221 through the structure-to-structure conversion. There are various transmission connection manners of the positioning element 222 and the transmission structure 230, and it is only necessary that the positioning element 222 can move close to or away from each other after the transmission structure 230 moves.

Alternatively, the driving connection between the positioning member 222 and the driving structure 230 may be: when the transmission structure 230 is a screw rod structure, the transmission structure 230 is in threaded connection with the positioning member 222, the screw rod structure rotates, and the positioning member 222 moves back and forth on the base 221 under the action of the threads; or, when the transmission structure 230 is a rack structure, the transmission structure 230 is fixedly connected or hinged with the positioning element 222, that is, the rack structure is driven by the gear to move back and forth, so that the positioning element 222 moves back and forth on the base 221; alternatively, when the rack structure is a link structure, the link structure is rotationally connected to the positioning member 222, and the positioning member 222 is moved back and forth on the base 221 by using the principle of the link-slider mechanism.

Alternatively, the second driver 240 may be a telescopic driving device such as a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc.; or may be an electric motor. When the second actuator 240 is a telescopic driving device such as an air cylinder, a hydraulic cylinder, an electric cylinder, etc., the transmission structure 230 is driven by the second actuator 240 to move back and forth in a telescopic manner, so as to drive the positioning members 222 to move toward or away from each other; when the second driver 240 is a motor, the transmission structure 230 is driven by the second driver 240 to rotate, so as to drive the positioning members 222 to move toward or away from each other.

Further, referring to fig. 6, the transmission structure 230 includes a first transmission member 231 and at least two second transmission members 232. The first transmission member 231 is connected to an output shaft of the second driver 240. The second transmission member 232 is in transmission connection with the positioning member 222. At least two second transmission members 232 are each geared or rotationally connected to the first transmission member 231. Thus, the first transmission member 231 is matched with the second transmission member 232, so that the second driver 240 can drive the positioning member 222 to stably move on the base 221, and the positioning members 222 are close to each other, thereby stably clamping the workpiece.

It should be noted that, referring to fig. 6, when the second transmission member 232 is in gear connection with the first transmission member 231, the first transmission member 231 is or is provided with a gear, the second transmission member 232 is a rack or a combination structure of a gear and a screw rod, and at this time, the second driver 240 is a motor device; when the second transmission member 232 is rotatably connected to the first transmission member 231, the first transmission member 231 and the second transmission member 232 are both of a link structure, and at this time, the second driver 240 is a telescopic driving device such as an air cylinder, a hydraulic cylinder, an electric cylinder, and the like.

Further, referring to fig. 6, the first transmission member 231 is provided with a first bevel gear 2311. The second transmission member 232 is a screw rod, and a second bevel gear 2321 meshed with the first bevel gear 2311 is arranged on the screw rod. Therefore, during the positioning process, the second driver 240 drives the first transmission member 231 to rotate; after the positioning member 222 and the first transmission member 231 move toward or away from each other, the first transmission member 231 is engaged with the second bevel gear 2321 via the first bevel gear 2311 to drive the screw rod to rotate, so that the positioning member 222 moves back and forth on the base 221. Since the first transmission member 231 and the second transmission member 232 are engaged and transmitted by the bevel gears in this embodiment, the rotation directions of the first transmission member 231 and the second transmission member 232 are not on the same plane, which is beneficial to changing the placement position between the first transmission member 231 and the second transmission member 232, so that the structural distribution among the second driver 240, the transmission structure 230 and the positioning assembly 220 becomes more compact. In addition, utilize the lead screw drive setting element 222 to remove, also can realize that setting element 222 locks on the lead screw, avoid the work piece to take place the drunkenness because of setting element 222 slides after the work piece location, promote the detection precision of work piece greatly.

Specifically, referring to fig. 6, the first transmission member 231 is a shaft structure, and the shaft structure is connected to the output shaft of the second driver 240 in a coupling manner or an interference fit manner. The first bevel gear 2311 is journaled on the shaft structure.

In one embodiment, referring to fig. 6, the positioning assembly 220 further comprises a sliding member 223. The slider 223 is slidably mounted on the base 221. The positioning member 222 is mounted on the slider 223. The screw rod penetrates through the sliding part 223 and is in threaded connection with the sliding part 223, so that after the screw rod rotates, the sliding part 223 is driven to move on the screw rod, and the positioning part 222 is driven to move on the base 221.

In one embodiment, referring to fig. 6, the positioning assembly 220 further comprises a support 224. The second transmission member 232 is rotatably mounted on the support 224, one end of the second transmission member 232 is in gear connection with the first transmission member 231, and the other end of the second transmission member 232 is in transmission connection with the positioning member 222, so that the second transmission member 232 can rotate stably through the support 224, and the workpiece is prevented from being positioned and deviated due to shaking when the second transmission member 232 rotates.

Further, referring to fig. 7, the second base 210 is provided with a shaft hole 211. At least two positioning assemblies 220 are spaced circumferentially about the shaft bore 211. The first transmission member 231 is installed in the shaft hole 211, one end of the first transmission member 231 is connected to the output shaft of the second driver 240, and the other end of the first transmission member 231 is gear-connected or rotatably connected to at least two second transmission members 232. Therefore, the first transmission member 231 of the present embodiment is surrounded by the positioning component 220, and when the first transmission member 231 moves, the second transmission member 232 is driven to correspondingly move, so that the peripheral positioning element 222 moves towards the first transmission member 231 at the same time, and the workpiece is stably clamped.

Specifically, referring to fig. 7, there are three positioning assemblies 220, the three positioning assemblies 220 are spaced around the shaft hole 211, and the positioning assemblies 220 are disposed along the radial direction of the shaft hole 211.

In one embodiment, referring to fig. 8, the positioning mechanism 200 further comprises a third driver 250. The output shaft of the third driver 250 is in driving fit with the second base 210, and the third driver 250 is used for driving the second base 210 to rotate. Therefore, after the workpiece is positioned, the third driver 250 is started, the second base 210 is driven to rotate, the positioning component 220 on the second base 210 is driven to rotate together with the positioned workpiece, and thus, in the flaw detection process, the flaw detection mechanism 400 can be ensured to be stationary, the flaw detection can be carried out on one week of the workpiece, the requirement of rotating the large flaw detection mechanism 400 is avoided, and the workpiece is greatly convenient to detect.

It should be noted that a drive fit is understood as: when the third driver 250 is activated, it can drive the second base 210 to rotate. There are various driving matching manners, for example, the output shaft of the third driver 250 and the second base 210 are in meshing transmission through gears and gears; the transmission of the two can be realized by a belt or a chain, etc.

Specifically, referring to fig. 8, the third driver 250 is a motor, an output shaft of the motor is sleeved with a driving gear 251, and the second base 210 is sleeved with a driven gear 241 engaged with the driving gear 251.

It should be further noted that, referring to fig. 8, when the first transmission member 231 and the second transmission member 232 are transmitted by the bevel gear, the second base 210 drives the positioning assembly 220 to rotate, and the second transmission member 232 also drives the first transmission member 231 to rotate synchronously by the bevel gear, so as to ensure that the first transmission member 231 and the second transmission member 232 are relatively stationary, and prevent the first transmission member 231 and the second transmission member 232 from moving relatively due to the rotation of the second base 210, thereby preventing the positioning member 222 from moving and causing the positioning of the workpiece to become loose. Of course, the second base 210 can drive the whole second driver 240 to rotate.

In one embodiment, referring to fig. 9, two opposite sides of the positioning element 222 are respectively provided with a first interference surface 2221 and a second interference surface 2222. The first contact surface 2221 is adapted to contact an outer side surface of the workpiece. The second contact surface 2222 is used to contact the inner surface of the workpiece, so that the positioning element 222 can position the inner ring and the outer ring of the workpiece, respectively, and the inspection mechanism 400 can inspect the inner ring and the outer ring of the workpiece, respectively.

Specifically, referring to fig. 9, the first contact surface 2221 and the second contact surface 2222 are circular surfaces, respectively. It should be noted that the inner and outer side surfaces of the workpiece are understood as follows: the workpiece is provided with an inner cavity, taking a bearing sleeve as an example, the bearing sleeve is provided with an inner ring, one side of the bearing sleeve, which is back to the inner ring, is an outer side, and one side, which faces the inner ring, is an inner side.

In one embodiment, referring to FIG. 10, inspection mechanism 400 includes a third moving structure 410 and an inspection structure 420. The flaw detection structure 420 is mounted on the third moving structure 410, the third moving structure 410 is used for driving the flaw detection structure 420 to move toward the workpiece, and the flaw detection structure 420 is used for performing flaw detection on the workpiece. Therefore, after the workpiece is positioned, the third moving structure 410 is started to drive the flaw detection structure 420 to move towards the workpiece, so that the flaw detection structure 420 approaches the workpiece, and the workpiece can be detected by the flaw detection structure 420.

Further, referring to fig. 10, the third moving structure 410 includes a first moving assembly 411 and a second moving assembly 412, the second moving assembly 412 is mounted on the first moving assembly 411, the flaw detection structure 420 is mounted on the second moving assembly 412, and the first moving assembly 411 and the second moving assembly 412 respectively drive the flaw detection structure 420 to move along different directions, so that the flaw detection structure 420 can move to a specific position more accurately by moving the apparatus in two different directions, thereby enabling the flaw detection structure 420 to detect the workpiece better.

Specifically, referring to fig. 10, the first moving assembly 411 and the second moving assembly 412 are linear modules, and the flaw detection structure 420 moves along two different directions respectively by using a screw transmission principle.

In one embodiment, referring to fig. 11, the flaw detection structure 420 includes a third base 421, a fourth driver 422, a swinging component 423, and a probe 424, the third base 421 is mounted on the second moving component 412, the fourth driver 422 is mounted on the third base 421, the probe 424 is rotatably mounted on the third base 421, the swinging component 423 is connected between an output shaft of the fourth driver 422 and the probe 424, the fourth driver 422 is used for driving the probe 424 to swing on the third base 421 through the swinging component 423, and thus, the probe 424 is tilted on the third base 421 by the fourth driver 422, so that the probe 424 can perform flaw detection on a tapered surface or a tilted surface, and flaw detection of a conical surface and a curved surface bearing is achieved.

Further, referring to fig. 11, the fourth driver 422 is a motor, the swing assembly 423 includes a first swing wheel 4231, a second swing wheel 4232 and a transmission rod 4233 connected between the first swing wheel 4231 and the second swing wheel 4232, the first swing wheel 4231 is installed on an output shaft of the motor, and the second swing wheel 4232 is installed on the probe 424, so that the motor is started to rotate the first swing wheel 4231; and then the transmission rod 4233 is linked with the second swinging wheel 4232 to rotate, so that the probe 424 swings on the third base 421, and the flaw detection of the probe 424 on the conical and curved bearings is realized.

Alternatively, the probe 424 is an electromagnetic flaw detector or an ultrasonic flaw detector, and since the internal structure of the probe 424 is not a modified object of the present embodiment, it will not be described in detail herein, and reference may be made to the actual product structure.

In one embodiment, referring to fig. 4, the inspection scanning apparatus further includes an inspection room 300. The positioning mechanism 200 and the flaw detection mechanism 400 are both installed in the detection room 300. The detection room 300 is provided with a through opening 310. The gripper mechanism 100 is used to grip the workpiece onto the positioning assembly 220 through the access opening 310. Therefore, flaw detection is completed in the detection room 300, and the detection reliability is greatly improved.

Specifically, the number of the through openings 310 is two, and the two through openings 310 are located on two opposite side surfaces of the detection room 300, so that the grabbing mechanism 100 can conveniently get in and out of the detection room 300, and the workpiece grabbing in and grabbing out of the detection room 300 can be operated more conveniently.

Further, referring to fig. 4, the flaw detection scanning apparatus further includes an input device (not shown) and an output device (not shown), which are respectively located at two sides of the detection room 300, so that the workpieces are stably supplied to the detection room 300 through the input device and the output device, and the workpieces in the detection room 300 are also stably output.

Alternatively, the input device and the output device are both belt conveyors, chain conveyors, roller wheel conveyors, etc.

In an embodiment, referring to fig. 4 and fig. 5, the flaw detection scanning apparatus further includes a display screen 600 and a controller 500, and the display screen 600, the positioning mechanism 200, the grasping mechanism 100, and the flaw detection mechanism 400 are all electrically connected to the controller 500, so as to implement automatic control of the flaw detection scanning apparatus. Meanwhile, the parameter debugging and the automatic control of the operating personnel are facilitated through the display screen 600.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A grasping configuration, characterized in that the grasping configuration includes:

a mounting seat;

the device comprises a first grabbing component and a second grabbing component, wherein the first grabbing component and the second grabbing component are arranged on an installation seat at intervals, and at least one of the first grabbing component and the second grabbing component can slide relative to the installation seat, wherein the first grabbing component and the second grabbing component respectively comprise a first base, a first driver and a grabbing hand connected with an output shaft of the first driver, and the first driver is arranged on the first base; and

the adjusting component is arranged on the mounting seat and used for adjusting the distance between the first grabbing component and the second grabbing component.

2. The grasping structure according to claim 1, wherein the adjustment assembly includes an adjustment wheel and an adjustment member connected to the adjustment wheel, the adjustment member being mounted on the mounting base, the adjustment member being configured to drive at least one of the first grasping assembly and the second grasping assembly to slide relative to the mounting base.

3. The grasping structure according to claim 2, wherein the adjustment member is an adjustment screw rotatably mounted on the mounting base, and at least one of the first bases is threadedly coupled to the adjustment screw and is in guiding engagement with the mounting base.

4. The grasping structure according to claim 3, wherein the first base is provided with a first guide portion, and the mounting base is provided with a second guide portion that is in guide fit with the first guide portion.

5. The grasping structure according to any one of claims 1 to 4, wherein a guide member is provided on the first base, and a guide groove that is in guide engagement with the guide member is provided on the hand grip.

6. The grasping structure according to any one of claims 1 to 4, wherein the grasping portion is provided with a grasping portion, and the grasping portion is provided with a groove; and/or the presence of a gas in the gas,

the first base is provided with a connecting piece, and the first driver is arranged on the connecting piece.

7. A grabbing mechanism, comprising a first moving structure, a second moving structure and the grabbing structure as claimed in any one of claims 1 to 6, wherein the second moving structure is mounted on the first moving structure, the mounting base is mounted on the second moving structure, the first moving structure is configured to drive the second moving structure to move along a first direction, the second moving structure is configured to drive the grabbing structure to move along a second direction, and the first direction and the second direction are perpendicular to each other.

8. The flaw detection scanning device is characterized by comprising a positioning mechanism, a flaw detection mechanism and the grabbing mechanism of claim 7, wherein the grabbing mechanism is used for grabbing a workpiece onto the positioning mechanism, the positioning mechanism is used for positioning the workpiece, and the flaw detection mechanism is used for carrying out flaw detection on the positioned workpiece.

9. The flaw detection scanning apparatus according to claim 8, wherein the positioning mechanism comprises:

a second base;

the positioning assemblies are arranged on the second base and comprise a base and positioning pieces arranged on the base in a sliding mode, and the positioning pieces are matched with each other to abut against a workpiece and position the workpiece;

the at least two positioning pieces are in transmission connection with the transmission structure, and when the transmission structure moves, the at least two positioning pieces are used for moving towards or away from a workpiece; and

and an output shaft of the second driver is connected with the transmission structure, and the second driver is used for driving the transmission structure to move.

10. The flaw detection scanning device according to claim 9, wherein the flaw detection mechanism comprises a third moving structure and a flaw detection structure, the flaw detection structure is mounted on the third moving structure, the third moving structure is used for driving the flaw detection structure to move toward the workpiece, and the flaw detection structure is used for performing flaw detection on the workpiece; and/or the presence of a gas in the gas,

the flaw detection scanning device further comprises a detection room, the positioning mechanism and the flaw detection mechanism are installed in the detection room, a through hole is formed in the detection room, and the grabbing structure is used for grabbing the workpiece to the positioning assembly through the through hole.