CN218066557U - Automatic calibration device and automatic calibration workstation - Google Patents

Abstract

The utility model discloses an automatic calibration device and an automatic calibration workstation, which comprises a visual light source component, a robot unit, a positioning component and a plug wire component, wherein the positioning component is arranged on a workbench, and the visual light source component is positioned above the positioning component; the robot unit comprises a multi-joint robot, a control system and a gripper assembly, the control system is connected with the multi-joint robot and the gripper assembly, the gripper assembly is arranged on the multi-joint robot, the gripper assembly comprises a camera and a clamping jaw, and the clamping jaw is controlled by the control system to grab and move the plug wire assembly. The utility model discloses an automatic calibration device and automatic calibration workstation snatch and remove the plug wire subassembly through many joint robot's tongs subassembly, with the plug wire subassembly with be connected by instrument, detector, the artifical automatic calibration operation of examining the instrument of completion of fungible improves calibration quality and efficiency.

Description

Automatic calibration device and automatic calibration workstation

Technical Field

The utility model relates to an automatic measurement detects technical field, especially an automatic calibration device and automatic calibration workstation.

Background

The metering and detecting instrument is widely applied to the detection link of an enterprise in the production and manufacturing process of products, and the risk of precision loss or accuracy reduction and the like may exist in the long-term use process. In order to ensure the accuracy of the measurement of the metering and detecting instrument, the self-checking and calibrating work needs to be carried out on the metering and detecting instrument periodically.

Depending on the type or kind of the measurement and inspection instrument or device, the country or industry has mandatory requirements and standards for checking and calibrating. Generally, the inspection and calibration work for the measurement and detection instrument or device needs to be performed by a detection institution or a third-party detection unit which has detection qualification and is approved by relevant national departments.

However, due to the characteristics of tedious inspection and calibration process, high repeatability of step operation, and the like of the measurement and detection instrument, not only is the operator prone to fatigue and cause errors of calibration operation, but also more and more inspection and calibration workers are lost, and thus the enterprise is under the condition of insufficient employment. Therefore, in order to solve the problem existing in the calibration process of the metering and detecting instrument, improve the automation level of the metering and detecting industry and reduce the labor cost of enterprises, an automatic calibration device capable of replacing the manual automatic calibration operation of the metering and detecting instrument needs to be developed urgently, and the calibration quality and efficiency are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, to prior art not enough, provide an automatic calibration device and automatic calibration workstation, this automatic calibration device and automatic calibration workstation fungible manual work are accomplished and are examined the automatic calibration operation of instrument, improve calibration quality and efficiency.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

an automatic calibration device is structurally characterized by comprising a visual light source assembly, a robot unit, a positioning assembly and a wire plugging assembly, wherein the positioning assembly is arranged on a workbench, and the visual light source assembly is positioned above the positioning assembly;

the robot unit comprises a multi-joint robot, a control system and a gripper assembly, the control system is connected with the multi-joint robot and the gripper assembly, the gripper assembly is arranged on the multi-joint robot, the gripper assembly comprises a camera and a clamping jaw, the clamping jaw is controlled by the control system to grab and move the plug wire assembly, and the clamping jaw is a pneumatic clamping jaw or an electric clamping jaw.

The utility model discloses an automatic calibrating device provides ambient light source for the camera through visual light source subassembly, and the camera is used for the discernment of the position of examining the instrument and reading of display data, and the clamping jaw is used for picking up of plug wire subassembly, plug operation and the rotation of the knob gear of examining the instrument, presses the operation, and locating component is fixed examining the instrument. Therefore, the wire inserting assembly is grabbed and moved by the grabbing assembly of the multi-joint robot, and the wire inserting assembly is connected with the detected instrument and the detector, so that the automatic calibration operation of the detected instrument is completed.

Further, the visual light source assembly comprises at least two light sources, wherein the height of the first light source is higher than that of the second light source, and the height of the second light source is higher than that of the positioning assembly, so that the stability of visual identification is ensured.

Furthermore, the light source is a strip light source, the long edge of the strip light source is parallel to the length direction of the workbench, and the two strip light sources are arranged at intervals along the width direction of the workbench to ensure that the positions of the strip light sources do not interfere with the moving range of the gripper assembly.

Furthermore, the locating component comprises a limiting block, a locating block, a clamping block and a moving cylinder, the clamping block is connected to the moving cylinder, the limiting blocks are arranged oppositely, the locating block is close to two of one end of the limiting block, the clamping block is close to two of the other end of the limiting block, and the locating block can move towards or away from the moving cylinder under the driving of the moving cylinder. The detected instrument is placed between the two limiting blocks, and the moving cylinder drives the clamping block to move towards the positioning block, so that the detected instrument is clamped and fixed.

Furthermore, the locating component further comprises a wedge block, the wedge block is close to the locating block, the thick end of the section of the wedge block faces towards the locating block, and the tip end of the section of the wedge block faces towards the clamping block. The inclination angle c of the wedge-shaped block is 5 degrees < c <15 degrees, and the wedge-shaped block is arranged at the bottom of the detected instrument to compensate the height difference of two ends of the detected instrument so that the top surface of the instrument after being placed tends to be horizontal as much as possible.

Furthermore, one surface of the clamping block, which faces the positioning block, is an inclined plane, the range of the inclination angle a of the inclined plane is 0 degrees < a <45 degrees, and the clamping block is a flexible clamping block, so that the universal meter is guaranteed to be under the action of downward pressing force when clamped.

Furthermore, the positioning assemblies are provided with a plurality of groups, and the plurality of groups of positioning assemblies are arranged at intervals along the length direction of the workbench, so that the automatic calibration operation of a plurality of detected instruments can be completed at one time.

Further, the plug wire subassembly includes data plug wire, button plug, the data plug wire has 2 at least groups, the plug at the both ends of data plug wire is used for connecting the tester respectively and is examined the instrument, button plug and the button phase-match who is examined the instrument to realize plug, the rotation action to the button.

The device further comprises an upper rack unit and a lower rack unit, wherein the upper rack unit and the lower rack unit are of box-type structures; the bottom of the box body of the upper frame unit is used for placing the workbench, a push-pull cabinet door is arranged on the side face of the upper frame unit, and an indicator light is further arranged on the upper frame unit; the lower rack unit is arranged below the upper rack unit, and a placing platform is arranged in the lower rack unit. The pilot lamp is used for showing the running state of automatic calibration device and automatic calibration workstation, and place the platform and be used for placing the tester.

Based on the same invention concept, the utility model also provides an automatic calibration workstation:

an automatic calibration workstation comprises the automatic calibration device, and is structurally characterized by further comprising a detected instrument and a tester, wherein the detected instrument is positioned on the workbench and is fixed by the positioning assembly, and the wire plugging assembly is connected with the detected instrument and/or the tester by the gripper assembly under the control of the control system.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

the utility model discloses an automatic calibration device and automatic calibration workstation can realize the automatic calibration equipment of the automatic calibration operation of measurement detecting instrument, improve calibration quality and efficiency, reduce intensity of labour. And the operator can reduce the taking and placing times of the detected instrument and realize the automatic calibration operation of a plurality of detected instruments at one time.

Drawings

To illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural diagram of an embodiment of the automatic calibration device and the automatic calibration workstation of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic structural diagram of the upper frame unit according to the present invention.

Fig. 4 is a schematic structural view of the lower frame unit of the present invention.

Fig. 5 is a schematic structural diagram of the positioning assembly of the present invention.

Fig. 6 is a schematic side view of the positioning assembly of the present invention.

Reference numerals:

1-a visual light source assembly; 2-a workbench; 3-a positioning assembly; 4-a patch assembly; 5-a multi-joint robot; 6-a gripper assembly; 7-an upper frame unit; 8-lower rack unit; 9-the instrument under test; 10-a tester;

11-a first light source; 12-a second light source;

31-a limiting block; 32-a positioning block; 33-a clamping block; 34-a moving cylinder; 35-a wedge block;

41-data plug wire; 42-push button plug;

61-a camera; 62-a jaw;

71-sliding door; 72-an indicator light;

81-placing the platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments. It is to be understood that the embodiments described are some, not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive labour based on the described embodiments of the invention, belong to the protection scope of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The terms "connected" or "coupled" and the like as used herein are not restricted to physical or mechanical connections, but include both direct and indirect connections. But may include electrical connections, whether direct or indirect. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, at least one embodiment of the present invention provides an automatic calibration device, which includes a visual light source assembly 1, a robot unit, a positioning assembly 3, and a plug wire assembly 4, wherein the positioning assembly 3 is disposed on a working table 2, and the visual light source assembly 1 is located above the positioning assembly 3; the robot unit comprises a multi-joint robot 5, a control system and a gripper assembly 6, the control system is connected with the multi-joint robot 5 and the gripper assembly 6, the gripper assembly 6 is arranged on the multi-joint robot 5, the gripper assembly 6 comprises a camera 61 and a clamping jaw 62, and the clamping jaw 62 is controlled by the control system to realize the gripping and moving of the wire plugging assembly 4. The jaws 62 may be pneumatic or electric jaws or other replaceable components that perform gripping, clamping, etc., such as a moving cylinder, etc. The plug wire assembly 4 comprises a data plug wire 41 and a button plug 42, the data plug wire 41 comprises at least 2 groups, two ends of the data plug wire 41 are respectively connected with the tester 10 and the detected instrument 9, and the button plug 42 is matched with a button of the detected instrument 9. The positioning assemblies 3 are provided with a plurality of groups, the plurality of groups of positioning assemblies 3 are arranged at intervals along the length direction of the workbench 2, and the automatic calibration operation of a plurality of detected instruments 9 can be completed at one time.

In order to ensure the stability of visual recognition, the visual light source assembly 1 comprises at least two light sources, wherein the height of the first light source 11 is higher than that of the second light source 12, and the height of the second light source 12 is higher than that of the positioning assembly 3. The light source is preferably a strip light source, the long edge of the strip light source is parallel to the length direction of the workbench 2, and the two strip light sources are arranged at intervals along the width direction of the workbench 2.

With reference to fig. 3 and 4, the upper frame unit 7 and the lower frame unit 8 are both of a box-type structure; the bottom of the box body of the upper rack unit 7 is used for placing the workbench 2, a push-pull cabinet door 71 is arranged on the side face of the upper rack unit 7, and an indicator lamp 72 is further arranged on the upper rack unit 7. Preferably, the indicator light is a three-color light and is used for displaying the running states of the automatic calibration device and the automatic calibration workstation, the indicator light can display green in the automatic running process of the equipment, yellow can be displayed after the inspection is finished, and red can be displayed when abnormal alarm is given. The lower rack unit 8 is arranged below the upper rack unit 7, and a placement platform 81 is arranged in the lower rack unit 8.

As shown in fig. 5 and 6, the positioning assembly 3 includes a limiting block 31, a positioning block 32, a clamping block 33, a moving cylinder 34, and a wedge block 35, the clamping block 33 is connected to the moving cylinder 34, the two limiting blocks 31 are disposed opposite to each other, the positioning block 32 is disposed near one end of the two limiting blocks 31, the clamping block 33 is disposed near the other end of the two limiting blocks 31, and can move toward or away from the positioning block 32 under the driving of the moving cylinder 34. The detected instrument 9 is arranged between the two limiting blocks 31, and the moving cylinder 34 drives the clamping block 33 to move towards the positioning block 32, so that the detected instrument 9 is clamped and fixed. One surface of the clamping block 33 facing the positioning block 32 is an inclined slope, the range of the inclination angle a of the inclined slope is 0 degrees < a <45 degrees, and the clamping block 33 is a flexible clamping block. The wedge block 35 is close to the positioning block 32, the thick end of the section of the wedge block 35 faces the positioning block 32, and the tip end of the section of the wedge block 35 faces the clamping block 33. The wedge 35 preferably has an inclination angle c in the range of 5 ° < c <15 °, and the wedge 35 is used for being cushioned on the bottom of the detected instrument 9 to compensate the height difference between the two ends of the detected instrument 9, so that the top surface of the instrument after being placed is as horizontal as possible.

Based on the same inventive concept, the utility model also provides an automatic calibration workstation, include the automatic calibration device as before, still include to be examined instrument 9, tester 10, it is located to be examined instrument 9 on workstation 2, and fixed by locating component 3, tongs 6 with plug wire subassembly 4 with be examined instrument 9 and/or tester 10 and be connected under control system's control.

The utility model discloses the examined instrument that is suitable for includes but is not limited to: universal meters, frequency spectrometers, signal sources, comprehensive testers, and the like.

Use the universal meter as an example, the utility model discloses an automatic calibration workstation's working process as follows:

1) The manual multimeter is placed between two limiting blocks 31, a starting button of the movable air cylinder 34 is pressed, the clamping block 33 automatically moves to clamp the multimeter, and the multimeter is fixed on the workbench 2 through the positioning assembly 3.

2) Under the control of the control system, the gripper assembly of the multi-joint robot moves to a first photographing position (close to the position above a position provided with a model mark corresponding to the universal meter, usually at the head position of the universal meter), and the camera photographs the universal meter to acquire model data of the universal meter and transmits the model data to a background.

3) And the gripper assembly of the multi-joint robot moves to a second photographing position (close to the jack of the universal meter and above the knob position), the jack position and the knob angle data of the universal meter are obtained, and the data are transmitted to the background.

4) The clamping jaw picks up four data plug wires in sequence, and one end of a plug of the clamping jaw is inserted into a jack of the multimeter. The jaws pick up the button plug 42 and press the power-on key of the multimeter with the button plug 42. And the clamping jaw rotates the knob of the universal meter to a corresponding test (mode) gear to perform testing.

5) The gripper assembly of the multi-joint robot moves to a third photographing position (above the position close to the screen of the universal meter), the camera is used for photographing and reading the screen data of the universal meter, and the data are transmitted to the background.

6) The clamping jaw 62 picks up the button plug 42 and presses the start key of the multimeter to shut down, the gear of the multimeter is rotated to reset the gear, the plug of the data plug wire 41 is pulled out to the original tool, and the test of the first multimeter is completed.

7) And (5) repeating the operations from the step 2) to the step 6), testing other multimeters in sequence, and manually picking up the multimeters after the testing is finished.

The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the present invention which are obvious to those skilled in the art after reading the present invention.

Claims (10)

1. An automatic calibration device is characterized by comprising a visual light source assembly (1), a robot unit, a positioning assembly (3) and a wire plugging assembly (4), wherein the positioning assembly (3) is arranged on a workbench (2), and the visual light source assembly (1) is positioned above the positioning assembly (3);

the robot unit comprises a multi-joint robot (5), a control system and a gripper assembly (6), the control system is connected with the multi-joint robot (5) and the gripper assembly (6), the gripper assembly (6) is arranged on the multi-joint robot (5), the gripper assembly (6) comprises a camera (61) and a clamping jaw (62), and the clamping jaw (62) is controlled by the control system to realize the gripping and moving of the wire plugging assembly (4).

2. The automatic calibration device according to claim 1, characterized in that said visual light source assembly (1) comprises at least two light sources, wherein the first light source (11) has a height higher than the height of the second light source (12), said second light source (12) having a height higher than the height of said positioning assembly (3).

3. The automatic calibration device according to claim 2, characterized in that the light source is a bar light source, the long side of the bar light source is parallel to the length direction of the workbench (2), and the two bar light sources are arranged at intervals along the width direction of the workbench (2).

4. The automatic calibration device according to claim 1, wherein the positioning assembly (3) comprises a stopper (31), a positioning block (32), a clamping block (33) and a moving cylinder (34), the clamping block (33) is connected to the moving cylinder (34), the two stoppers (31) are oppositely arranged, the positioning block (32) is arranged near one end of the two stoppers (31), the clamping block (33) is arranged near the other end of the two stoppers (31), and can move towards or away from the positioning block (32) under the driving of the moving cylinder (34).

5. The automatic calibration device according to claim 4, wherein the positioning assembly (3) further comprises a wedge block (35), the wedge block (35) is disposed near the positioning block (32), the thick cross-sectional end of the wedge block (35) is disposed toward the positioning block (32), and the sharp cross-sectional end of the wedge block (35) is disposed toward the clamping block (33).

6. The automatic calibration device according to claim 4, characterized in that the face of the clamping block (33) facing the positioning block presents an inclined slope with an inclination angle a in the range 0 ° < a <45 °, the clamping block (33) being a flexible clamping block.

7. The automatic calibration device according to claim 1, wherein the positioning assemblies (3) have a plurality of groups, and the plurality of groups of positioning assemblies (3) are arranged at intervals along the length direction of the workbench (2).

8. The automatic calibration device according to claim 1, wherein the plug wire assembly (4) comprises a data plug wire (41), a button plug (42), the data plug wire (41) having at least 2 groups.

9. The automatic calibration device according to any one of claims 1 to 8, characterized by further comprising an upper rack unit (7) and a lower rack unit (8), wherein the upper rack unit (7) and the lower rack unit (8) are both box-type structures; the bottom of the box body of the upper rack unit (7) is used for placing the workbench (2), a push-pull cabinet door (71) is arranged on the side surface of the upper rack unit (7), and an indicator lamp (72) is further arranged on the upper rack unit (7); the lower rack unit (8) is arranged below the upper rack unit (7), and a placing platform (81) is arranged in the lower rack unit (8).

10. An automatic calibration workstation comprising an automatic calibration device according to any one of claims 1 to 9, further comprising a tested instrument (9) and a tester (10), wherein the tested instrument (9) is positioned on the workbench (2) and fixed by the positioning assembly (3), and the gripper assembly (6) connects the wire insertion assembly (4) with the tested instrument (9) and/or the tester (10) under the control of the control system.

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