CN210690430U

CN210690430U - Crack detection device

Info

Publication number: CN210690430U
Application number: CN201921598071.0U
Authority: CN
Inventors: 尤根·海瑞恩
Original assignee: Haering Precision Taicang Co Ltd
Current assignee: Haering Precision Taicang Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-05
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a crack detection device, including workstation, support, rotatory board, first actuator, guiding mechanism, hold-down mechanism and camera, support and rotatory board set up on the workstation, and first actuator and guiding mechanism set up on the support, and hold-down mechanism sets up on guiding mechanism to arrange in directly over the rotatory board, utilize first actuator drive hold-down mechanism along the vertical removal of guiding mechanism, will place the work piece on rotatory board and fix, the camera setting is in one side of rotatory board, carries out image acquisition to the work piece. The device is simple in structure and convenient to operate, and can realize crack detection on the surface of the workpiece by rotating the workpiece for 360 degrees to acquire images; the stability of the workpiece during rotation is ensured through the active rotation of the rotary machine table and the passive rotation of the pressing mechanism; and the pressing block of the cone mechanism and the base in the shape of the cone frustum are matched, so that the position of the workpiece is adjusted and fixed, and the workpiece rotates around the central shaft of the workpiece.

Description

Crack detection device

Technical Field

The utility model relates to a detection area, in particular to crackle detection device.

Background

As shown in fig. 1, fig. 1 shows a schematic structural diagram of an oil nozzle of a gasoline engine, and a bottom portion 83 is of a stepped structure and extends upwards to form a tubular structure 84, and a through hole is formed inside the tubular structure. The workpiece is used in a gasoline engine and has higher requirements, and if cracks appear on the surface, certain potential safety hazards exist in use. Therefore, the crack detection is required for the surface, however, the existing manufacturers usually adopt manual detection, i.e. the crack detection is carried out on the surface of the workpiece by a worker through a microscope. Therefore, a large amount of manpower is wasted through a manual inspection mode, and the production cost is greatly increased; the accuracy is low, and false detection often occurs; most importantly, the worker can bear a great burden on eyes and can hurt the eyes when using the microscope for a long time.

SUMMERY OF THE UTILITY MODEL

To the defect that prior art exists above, the utility model discloses a main aim at overcomes prior art's weak point, discloses a crack detection device, including workstation, support, rotatory board, first actuator, guiding mechanism, hold-down mechanism and camera, the support with rotatory board sets up on the workstation, first actuator with guiding mechanism sets up on the support, hold-down mechanism sets up guiding mechanism is last, and arrange in directly over the rotatory board, utilize the first actuator drive hold-down mechanism follows the vertical removal of guiding mechanism will be placed work piece on the rotatory board is fixed, the camera sets up one side of rotatory board is right the work piece carries out image acquisition.

Further, the pressing mechanism comprises an installation block and a pressing block, wherein the pressing block is in a cone structure and is rotatably connected with the installation block.

Further, the guide mechanism comprises a slide rail and a slide block, the slide block is arranged on the slide rail in a sliding mode, the slide rail is vertically arranged on the support, and the slide block is fixedly connected with the pressing mechanism.

Further, the first actuator is a cylinder.

Further, the rotary machine platform comprises a base in the shape of a truncated cone and a servo motor for driving the base to horizontally rotate.

Further, the hydraulic buffer device further comprises at least two hydraulic buffers and a mounting bracket, wherein the mounting bracket is arranged on the bracket, and the hydraulic buffers are arranged on the mounting bracket and symmetrically arranged on two sides of the guide mechanism.

Further, still include the light source, the light source with the camera sets up relatively in the both sides of revolving stage.

The workpiece grabbing device comprises a manipulator and a grabbing device, wherein the grabbing device is arranged on the manipulator, is driven to move by the manipulator, and grabs a workpiece by the grabbing device.

Further, grabbing device includes mounting panel, clamping jaw cylinder and clamping jaw, the setting of clamping jaw cylinder symmetry is in the mounting panel both ends, the clamping jaw sets up on the clamping jaw cylinder.

The utility model discloses the beneficial effect who gains:

the utility model has simple structure and convenient operation, and realizes the crack detection on the surface of the workpiece by rotating the workpiece for 360 degrees to acquire images; the stability of the workpiece during rotation is ensured through the active rotation of the rotary machine table and the passive rotation of the pressing mechanism; the pressing block of the cone mechanism and the base in the shape of the cone frustum are matched, so that the position of the workpiece is adjusted and fixed, and the workpiece rotates around the central shaft of the workpiece; ingenious symmetry installation hydraulic cushion pole on the support prevents that the briquetting from strikeing the work piece and fixing a position briquetting pushing down the position when pushing down, causes the damage of work piece.

Drawings

FIG. 1 is a schematic view of a workpiece structure;

fig. 2 is a schematic structural view of a crack detection device according to the present invention;

FIG. 3 is a schematic view of a mounting structure of the bracket portion;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic mechanical diagram of a rotary table;

FIG. 6 is a schematic structural view of the manipulator of the present invention;

FIG. 7 is a schematic view of the mechanism of the robot and the gripping device;

fig. 8 is a schematic structural view of the gripping device;

the reference numbers are as follows:

1. the device comprises a workbench, 2, a support, 3, a rotary machine table, 4, a first actuator, 5, a guide mechanism, 6, a pressing mechanism, 7, a camera, 9, a light source, 10, a manipulator, 11, a gripping device, 31, a base, 32, a servo motor, 51, a sliding rail, 52, a sliding block, 61, an installation block, 62, a pressing block, 81, a hydraulic buffer, 82, an installation support, 83, a bottom, 84, a tubular structure, 111, an installation plate, 112, a clamping jaw cylinder, 13 and a clamping jaw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A crack detection device is shown in FIG. 2 and comprises a workbench 1, a support 2, a rotary machine table 3, a first actuator 4, a guide mechanism 5, a pressing mechanism 6 and a camera 7, wherein the support 2 and the rotary machine table 3 are arranged on the workbench 1, the first actuator 4 and the guide mechanism 5 are arranged on the support 1, the pressing mechanism 6 is arranged on the guide mechanism 5 and is arranged right above the rotary machine table 3, and the first actuator 4 can be an air cylinder; the output end of the air cylinder is fixedly connected with the pressing mechanism 6, and the pressing mechanism 6 is driven to vertically move along the guiding direction of the guiding mechanism 6 through the up-and-down movement of the air cylinder. The camera 7 is disposed at one side of the rotary table 3. During detection, a workpiece 8 is placed on the rotary machine table 3, the rotary machine table 3 is used for driving the workpiece 8 to rotate around the central axis of the workpiece 8, and meanwhile the first actuator 4 is used for driving the pressing mechanism 6 to press and fix the workpiece 8; then, the workpiece 8 is shot through the camera 7, and the picture is processed through a computer, so that whether cracks exist on the picture is checked. In addition, the processing of pictures by a computer is the prior art and is not described in detail again. The camera can be model number Dalsa Genie Nano M2020.

In one embodiment, as shown in fig. 3-4, the pressing mechanism 6 includes a mounting block 61 and a pressing block 62, the pressing block 62 is in a cone structure and is rotatably connected with the mounting block 61, and the mounting block 61 is fixedly mounted on the guiding mechanism 5. In use, the pressing mechanism 6 is driven by the first actuator 4 to move downwards, the tip of the pressing block 62 extends into the tubular structure of the workpiece 8, and the pressing block 62 is in a conical structure and can adjust the position of the workpiece 8 and press and fix the workpiece 8 when the pressing block is in contact with the workpiece 8.

In one embodiment, as shown in fig. 5, the rotary table 3 includes a truncated cone-shaped base 31 and a servo motor 32 for driving the base 31 to rotate horizontally. Specifically, the servo motor 32 is fixedly arranged on the worktable 1, the base 31 is arranged on a rotating shaft of the servo motor 32, and the servo motor 32 is used for driving the base 31 to horizontally rotate around the central axis thereof. Therefore, when the positioning device is used, the base 31 is in a cone frustum shape, and the bottom of the workpiece 8 is sleeved on the base 31 to play a positioning role, so that the accurate placement of the position of the workpiece 8 is ensured. When the pressing mechanism 6 is pressed down, the workpiece 8 can be positionally adjusted on the base 31 so that its central axis is perpendicular to the plane of rotation of the base 31. In addition, when the pressing block 62 with a cone structure is matched with the base 31 with a cone frustum shape, and the inside of the workpiece 8 is in a circular tube shape, the workpiece 8 can be well adjusted and fixed in position through the cone structures at the two ends. Also, the pressing piece 62 is provided in a cone structure, and the tip thereof can more easily enter the inside of the workpiece 8.

In one embodiment, as shown in fig. 3, the guiding mechanism 5 includes a sliding rail 51 and a sliding block 52, the sliding block 52 is slidably disposed on the sliding rail 51, the sliding rail 51 is vertically mounted on the bracket 2, and the sliding block 52 is fixedly connected to the mounting block 61 of the pressing mechanism 6.

In one embodiment, as shown in fig. 3-4, the hydraulic buffer device further comprises at least two hydraulic buffers 81 and a mounting bracket 82, wherein the mounting bracket 82 is disposed on the bracket 2, the hydraulic buffers 81 are disposed on the mounting bracket 82, and are symmetrically disposed on both sides of the guiding mechanism 5. At this time, the hydraulic buffer 81 is located below the mounting block 61, and the hydraulic buffer 81 plays roles of buffering and limiting; when the first actuator 4 drives the mounting block 61 to move downwards and contacts the hydraulic buffer 81, the hydraulic buffer 81 can generate certain damping, so that the mounting block 61 slowly moves downwards at a constant speed, and the pressing block 62 is prevented from directly impacting the workpiece 8 to damage the workpiece 8. Meanwhile, when the mounting block 61 moves downwards to the lowest position of the hydraulic buffer 81, the mounting block 61 cannot move downwards continuously due to the blocking of the hydraulic buffer 61, and therefore the pressing mechanism 6 is limited. Of course, the hydraulic shock absorber 81 may be disposed below the slider 52 to absorb shock and limit the position of the slider 52, and the same effect can be obtained.

In an embodiment, as shown in fig. 2, the apparatus further includes a light source 9, and the light source 9 and the camera 7 are oppositely disposed on two sides of the rotating table 3.

In one embodiment, as shown in fig. 6 to 8, the system further comprises a manipulator 10 and a gripping device 11, wherein the gripping device 11 is arranged on the manipulator 10, the manipulator 10 is arranged on one side of the workbench 1, and the gripping device 11 is driven by the manipulator 10 to move in the space; the workpiece 8 is gripped by a gripping device 11. Specifically, manipulator 10 drive grabbing device 11 moves to waiting to detect part dish department, presss from both sides the work piece 8 in the dish and gets, then moves to revolving stage 3 department, snatchs the work piece 8 that has detected the completion on revolving stage 3 to the work piece 8 that waits to detect that will just snatch prevents on revolving stage 3, then will detect the work piece 8 classification placement that finishes according to the testing result of work piece 8. In a specific embodiment, the gripping device 11 includes a mounting plate 111, two clamping jaw cylinders 112 and clamping jaws 113, the mounting plate 111 is mounted on the manipulator 10, the two clamping jaw cylinders 112 are symmetrically arranged at two ends of the mounting plate 111, the clamping jaws 113 are mounted on the clamping jaw cylinders 112, and the structures of the clamping jaws 113 are matched with the workpiece 8; the gripper 113 is driven to open and close by the reciprocating movement of the gripper cylinder 112, so as to grasp the workpiece 8. The manipulator 10 may use, among other things, a model YASKAWA Roboter GP 7.

When the utility model is used, as shown in fig. 1-8, the workpiece 8 is grabbed by the grabbing device 11, the workpiece 8 is placed on the base 31 of the rotary table 3 by the manipulator 10, then the manipulator 10 drives the grabbing device 11 to leave, and then the first actuator 4 drives the pressing mechanism 6 downwards to move downwards along the guide mechanism 5, so that the tip of the conical pressing block 62 extends into the workpiece 8; in the process, after the mounting block 61 is contacted with the hydraulic buffer 81, the pressing mechanism 6 under the action of the hydraulic buffer 81 slowly moves downwards and limits the pressing position of the pressing mechanism 6; and the position of the workpiece 8 is adjusted and fixed by the pressing block 62 in cooperation with the base 31. Because the pressing block 62 is rotationally connected with the mounting block 61, the servo motor 32 drives the machine table 31 to rotate, and drives the workpiece 8 to rotate; at this time, the pressing piece 62 follows the synchronous rotation. Acquiring an image of the workpiece 8 through the camera 7, and analyzing through a computer to judge whether the surface of the workpiece 8 has cracks; after the inspection is completed, the workpiece 8 is removed by the robot 10 and the gripper 11. The operation is to move the workpiece 8 by the cooperation of the manipulator 10 and the gripping device 11; of course, the workpiece 8 can be placed in a manual placing mode.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. The crack detection device is characterized by comprising a workbench, a support, a rotary machine table, a first actuator, a guide mechanism, a pressing mechanism and a camera, wherein the support and the rotary machine table are arranged on the workbench, the first actuator and the guide mechanism are arranged on the support, the pressing mechanism is arranged on the guide mechanism and is arranged right above the rotary machine table, the first actuator is used for driving the pressing mechanism to vertically move along the guide mechanism to fix a workpiece placed on the rotary machine table, and the camera is arranged on one side of the rotary machine table and is used for collecting images of the workpiece.

2. The crack detection device of claim 1, wherein the hold-down mechanism comprises a mounting block and a pressing block, and the pressing block is in a cone structure and is rotatably connected with the mounting block.

3. The crack detection device of claim 1, wherein the guiding mechanism comprises a slide rail and a slide block, the slide block is slidably disposed on the slide rail, the slide rail is vertically mounted on the bracket, and the slide block is fixedly connected to the pressing mechanism.

4. A crack detection device as claimed in claim 1, characterized in that the first actuator is a cylinder.

5. The crack detection device of claim 1, wherein the rotary table comprises a truncated cone-shaped base and a servo motor for driving the base to rotate horizontally.

6. The crack detection device of claim 1, further comprising at least two hydraulic bumpers and a mounting bracket, wherein the mounting bracket is arranged on the bracket, and the hydraulic bumpers are arranged on the mounting bracket and symmetrically arranged on two sides of the guide mechanism.

7. The crack detection device of claim 1, further comprising a light source, wherein the light source and the camera are disposed opposite to each other on two sides of the rotating table.

8. The crack detection device of claim 1, further comprising a manipulator and a gripping device, wherein the gripping device is arranged on the manipulator, the gripping device is driven to move by the manipulator, and the workpiece is gripped by the gripping device.

9. The crack detection device of claim 8, wherein the gripping device comprises a mounting plate, a clamping jaw cylinder and a clamping jaw, the clamping jaw cylinder is symmetrically arranged at two ends of the mounting plate, and the clamping jaw is arranged on the clamping jaw cylinder.