CN107449598B - Measuring device and needle valve flow measuring device - Google Patents
Measuring device and needle valve flow measuring device Download PDFInfo
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- CN107449598B CN107449598B CN201710791727.XA CN201710791727A CN107449598B CN 107449598 B CN107449598 B CN 107449598B CN 201710791727 A CN201710791727 A CN 201710791727A CN 107449598 B CN107449598 B CN 107449598B
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- 238000005259 measurement Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a measuring device capable of rapidly completing measurement and a needle valve flow measuring device. The measuring device of the present invention comprises a measuring unit (1), wherein the measuring unit (1) is provided with a rotation driving mechanism (11) and a measuring mechanism (12), and the rotation driving mechanism (11) is provided with: a pair of work holders (112A, 112B) on which the work (W) can be placed; a support member (111) on which the workpiece holder is disposed; and a rotation driving mechanism (113) for driving the support member to rotate so that the workpiece holder is switched between a loading and unloading position at which the workpiece (W) can be taken and placed by the workpiece carrying unit (5) and a measurement position at which the workpiece can be measured by the measuring mechanism (12), wherein when one of the pair of workpiece holders is positioned at the loading and unloading position, the other is positioned at the measurement position.
Description
Technical Field
The invention relates to a measuring device and a needle valve flow measuring device for measuring flow of a needle valve.
Background
How to quickly measure a workpiece is a long felt need.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a measuring device and a needle flow rate measuring device that can perform measurement promptly.
In order to achieve the above purpose, the present invention adopts the following technical scheme. In the following description of the present invention, reference numerals in the specific embodiments are added to brackets following the corresponding components, which are added to facilitate understanding of the present invention, and are not to be construed as equivalent to the preceding components, and do not limit the scope of the present invention.
The measuring device of the present invention includes: a loading bin (3) in which a workpiece (W) to be inspected is stored; a workpiece carrying unit (5) for carrying the workpiece (W); a measuring unit (1), wherein the workpiece conveying unit (5) conveys the workpiece (W) in the feeding bin (3) to the measuring unit (1), and the measuring unit (1) measures the workpiece (W); the blanking stock bin (4), the work piece (W) after being measured by the measuring unit (1) is carried to this blanking stock bin (4) by work piece transport unit (5), the measuring unit (1) has rotary driving mechanism (11) and measuring mechanism (12), rotary driving mechanism (11) have: a pair of work holders (112A, 112B) on which the work (W) can be placed; a support member (111), wherein the workpiece holders (112A, 112B) are disposed on the support member (111); and a rotation driving mechanism (113) for driving the support member (111) to rotate so that the workpiece holders (112, 112B) are switched between a loading and unloading position at which the workpiece (W) can be taken and placed by the workpiece carrying unit (5) and a measurement position at which the workpiece can be measured by the measuring mechanism (12), and when one of the pair of workpiece holders (112A, 112B) is located at the loading and unloading position, the other is located at the measurement position.
Since one of the pair of work holders (112A, 112B) is located at the loading and unloading position and the other is located at the measurement position, the work can be taken and placed by using the time for measurement, and the time can be saved, so that the whole measurement operation can be completed rapidly.
The invention preferably further comprises a numbering information scanning unit (2), wherein the workpieces measured by the measuring unit (1) are provided to the numbering information scanning unit (2), the numbering information of the workpieces (W) is scanned by the numbering information scanning unit (2), and the workpieces (W) scanned by the numbering information scanning unit (2) are conveyed to the blanking bin (4) by the workpiece conveying unit (5). Therefore, each workpiece can be numbered and scanned, so that the number of each workpiece corresponds to the measurement result, and the high-precision assembly is facilitated.
In the present invention, the number information scanning unit is preferably a two-dimensional code scanning unit (2).
Preferably, the workpiece carrying unit is a three-coordinate material moving unit (5). The three-coordinate transfer unit (5) may have: a 1 st guide rail extending in the 1 st direction in the horizontal direction; a pair of 2 nd guide rails disposed at both ends of the 1 st guide rail and extending in a 2 nd direction in a horizontal direction, the 2 nd direction being perpendicular to the 1 st direction, the 1 st guide rail moving along the 2 nd guide rail; an up-down driving mechanism mounted on the 1 st guide rail and moving along the 1 st guide rail; and a manipulator (51) mounted on the up-and-down drive mechanism.
In the invention, the feeding bin (3) is preferably arranged between the discharging bin (4) and the measuring unit (1). Therefore, the conveying unit can feed along the belt during the blanking return stroke, so that the action time is saved, and the measurement is further speeded up.
In the invention, the feeding bin (3) and the discharging bin (4) are universal in structure.
In the invention, the feeding bin (3) and the discharging bin (4) are preferably drawer bins.
The invention preferably further comprises a safety cover frame (101) covering the feeding bin (3), the workpiece carrying unit (5), the measuring unit (1) and the discharging bin (4), wherein the mounting cover frame (101) is provided with an opening part (101 a) which is open outwards at a position opposite to the feeding bin (3) and the discharging bin (4). In this way, the magazine can be easily taken out.
In the invention, preferably, the measuring unit (1) further has a lifting mechanism (13), the measuring mechanism (12) has a pressing head (123), and the lifting mechanism (13) lifts the workpiece seat at the measuring position and clamps the workpiece on the workpiece seat with the pressing head (123).
The needle flow measuring device for measuring the needle flow can be formed by any structure, and the measuring unit is a needle flow measuring unit.
Drawings
FIG. 1 is an oblique view of a needle valve body flow measurement device in an embodiment;
FIG. 2 is an oblique view of another angle of the needle valve body flow measurement device;
FIG. 3 is a top view of a needle valve body flow measurement device;
FIG. 4 is a front view of a needle valve body flow measurement device;
FIG. 5 is a left side view of the needle valve body flow measurement device;
FIG. 6 is a front view of a measurement unit included in the needle valve body flow measurement device 100 of the present embodiment;
FIG. 7 is a top view of the measuring unit;
FIG. 8 is a left side view of the measuring unit;
fig. 9 is an oblique view of a two-dimensional code scanning unit included in the needle valve body flow rate measuring device in the present embodiment;
FIG. 10 is an oblique view of another angle of the two-dimensional code scanning unit;
FIG. 11 is a front view of a two-dimensional code scanning unit;
fig. 12 is a plan view of the two-dimensional code scanning unit;
fig. 13 is a left side view of the two-dimensional code scanning unit.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
Fig. 1 is an oblique view of a needle valve body flow rate measurement device 100 in the present embodiment; FIG. 2 is an oblique view at another angle thereof, with the tank unit omitted from FIG. 2; FIG. 3 is a top view; FIG. 4 is a front view; fig. 5 is a left side view. In fig. 1 to 5, the front-rear, left-right, up-down directions are defined.
Fig. 6 is a front view of a measurement unit included in the needle valve body flow rate measurement device 100 in the present embodiment; FIG. 7 is a top view; fig. 8 is a left side view.
Fig. 9 is an oblique view of a two-dimensional code scanning unit included in the needle valve body flow rate measurement device 100 according to the present embodiment; FIG. 10 is an oblique view at another angle; FIG. 11 is a front view; FIG. 12 is a top view; fig. 13 is a left side view.
As shown in fig. 1 to 5, a needle flow rate measuring device (sometimes simply referred to as a flow rate measuring device or a measuring device) 100 in the present embodiment is for measuring a flow rate of a needle W as a workpiece, and includes a frame 10, the frame 10 having a horizontally arranged table, the needle flow rate measuring device 100 including a flow rate measuring unit 1, a two-dimensional code scanning unit 2, a plurality of bins (cartridges) 3 and 4 arranged on the table, and a three-coordinate transfer unit 5 arranged above the flow rate measuring unit 1, the two-dimensional code scanning unit 2, and the plurality of bins (cartridges) 3 and 4. The frame 10 is provided with a cover frame 101 for covering the flow measuring unit 1, the two-dimensional code scanning unit 2, the bins (cartridges) 3 and 4, and the three-dimensional material moving unit 5, and a computer 6 serving as a control unit is mounted outside the right side of the cover frame 101.
< safety cover frame >
As shown in fig. 1 to 5, the cover frame 101 has a frame structure on which transparent glass is mounted for easy observation. The cover frame 101 is provided with openable and closable doors at least on the left and front sides. The measurement device 100 automatically enters a protected state when the door is opened, the measurement start switch is deactivated, and a warning light 102 is provided. An opening 101a (fig. 4) that opens outward (without glass) is provided below the front door. The bins 3 and 4 in the embodiment are drawer type, the cartridges are detachable, the bins 3 and 4 are positioned front and back to face the opening 101a, and can be pulled out or pushed in through the opening 101a, so that the whole cartridges can be conveniently used for picking and placing workpieces.
< flow measurement Unit (measurement Unit) >)
As shown in fig. 6 to 8, the flow rate measurement unit 1 includes a rotary movement mechanism 11 for moving a workpiece and a measurement mechanism 12 for measuring the workpiece.
The rotary movement mechanism 11 includes a turntable 111 disposed horizontally and a rotary cylinder (rotary driving mechanism) 113 disposed below the turntable 111 to drive the turntable 111 to rotate. A pair of workpiece holders 112A and 112B capable of holding a workpiece and vertically movable relative to the turntable 111 are disposed on the turntable 111, and the workpiece holders 112A and 112B are disposed so as to face each other (180 ° angle) with the rotation center of the turntable 111 interposed therebetween.
The rotary cylinder 113 drives the turntable 111 to rotate once, and the workpiece holders 112A and 112B exchange positions. In the drawing, the workpiece seat 112A is located at the loading and unloading position, and the workpiece seat 112B is located at the measuring position. In the loading and unloading positions, the workpiece holders 112A and 112B can be used for picking and placing workpieces.
As shown in fig. 6 and 8, the flow rate measurement unit 1 further includes a lift cylinder 13 (lifting mechanism) disposed below the measurement position of the turntable 111, and the lift cylinder 13 lifts up the workpiece seat 112A or 112B located at the measurement position and clamps the workpiece with a ram 123 described below of the measurement mechanism 12 to perform measurement.
The measuring mechanism 12 has a ram 123 disposed above the measuring position of the turntable 11, and clamps the workpiece with the workpiece holder 112A or 112B lifted. The measuring means 12 further includes a flowmeter 121, a measuring solenoid valve 122, a cylinder solenoid valve 124, and a needle valve liquid flow rate measuring means 125.
< two-dimensional code scanning Unit >
The workpiece measured by the flow measuring unit 1 is transmitted to the two-dimensional code scanning unit 2.
As shown in fig. 9 to 13, the two-dimensional code scanning unit 2 includes a code scanner 21, a robot (belt cylinder) 22, a rotary cylinder 23, an up-and-down movement cylinder 24, a rotary motor 25, a forward-and-backward movement cylinder 26, a movement rail 27, and a work carrier 28.
The workpiece W is moved to the scanning unit 21 by the cooperation of a displacement unit composed of a manipulator (belt cylinder) 22, a rotary cylinder 23 and an up-and-down moving cylinder 24, and a rotary positioning unit composed of a rotary motor 25, a back-and-forth moving cylinder 26, a moving rail 27 and a workpiece carrying table 28, and the two-dimensional code information of the workpiece is read, correlated with the measurement data in real time, and stored.
< stock bin >
As shown in fig. 1 to 4, in the present embodiment, 6 bins are arranged in the left-right direction, and each bin includes two bins 3 arranged near the measuring unit 1 and the two-dimensional code scanning unit 2 on the left side and 4 bins 4 on the right side. The bin 3 is a feeding bin, that is, a three-coordinate material moving unit 5 described below takes a workpiece from the bin 3 and transmits the workpiece to the measuring unit 1, and the bin 4 is a discharging bin, that is, the three-coordinate material moving unit 5 transmits the workpiece measured by the measuring unit 1 and scanned by the two-dimensional code scanning unit 2 to the bin 4. The number of the storage bins 4 is 4, and different workpieces are stored according to the measurement result of the measurement unit 1, wherein the workpieces comprise four groups of flow super-lower difference, flow upper difference and flow super-upper difference.
< three-coordinate Material moving Unit >
As shown in fig. 1 to 5, the three-coordinate transfer unit 5 includes a robot arm 51, a pair of forward/backward movement cylinders (1 st rail) 52, a left/right movement cylinder (2 nd rail) 53, a forward/backward movement servomotor 54, a left/right movement servomotor 55, a connecting shaft 56 extending in the left/right direction, and an up/down movement cylinder (up/down driving mechanism) 57.
The left-right moving cylinder 53 extends in the left-right direction, and a pair of front-rear moving cylinders 52 are disposed at both left and right ends of the left-right moving cylinder 53, and extend in the front-rear direction. The robot arm 51 is connected to the left-right movement cylinder 52 via an up-down movement cylinder 57. The forward/backward movement servo motor 54 drives the left/right movement cylinder 53 to move forward/backward (the 2 nd direction) along the forward/backward movement cylinder 52, thereby driving the robot arm 51 to move forward/backward. The horizontal movement servo motor 55 drives the horizontal movement cylinder 57 to move horizontally along the extending direction (1 st direction) of the horizontal movement cylinder 53, thereby driving the robot to move horizontally. The up-and-down movement cylinder 57 drives the robot arm 51 to move up and down. In this way, the manipulator 51 can realize three-coordinate (three-dimensional) movement.
< action >
Next, the operation of the needle flow rate measurement device 100 according to the present embodiment will be described.
The workpiece W is placed on the loading level (bin 3) by an operator in a whole box, the drawer type bin unit is provided with a sensor for sensing whether the bin is in place, and when the bin is found to be in place, a measuring (starting) button can be used (only valid). In order to ensure safe operation by an operator, a safety door unit (101) is provided, the safety door being opened and the unit being automatically forced to stop. The operator presses a measuring button (not labeled), the three-coordinate material moving assembly 5 automatically moves the workpieces one by one to the workpiece loading position (112A) of the rotary moving mechanism 11, the rotary moving mechanism 11 automatically rotates the workpiece W to the middle (112B) between the jacking assembly 13 and the measuring assembly 12, and the jacking assembly 13 drives the workpieces to move upwards to press and fix the workpieces.
The calibration oil is then circulated and filtered through the oil tank unit 9, is supplied to the measuring unit W through the high-pressure oil supply unit and the pressure stabilizing unit (both not shown), is brought to a set value through the intelligent control unit 6, and is supplied to the needle valve body liquid flow measuring mechanism 125 through the flowmeter 121 at a certain pressure, and the unit automatically measures and stores the workpiece measurement data.
After the measurement is completed, the rotary moving mechanism 11 rotates the workpiece W to a workpiece feeding position, and then the workpiece W is moved to the scanning assembly 21 through the cooperation action of the shifting assemblies (22, 23 and 24) and the rotary positioning assemblies (25, 26, 27 and 28), and the workpiece two-dimension code information is read, correlated with the measurement data in real time and stored.
According to the automatic grouping of the setting range needle valve body W (including four groups of flow super-lower difference, flow upper difference and flow super-upper difference), the three-coordinate material moving assembly 5 automatically moves the workpiece W to a specified position of discharging and material distributing positions, and when the workpiece at the feeding position is completely taken out or the discharging and material distributing positions are fully filled, the unit automatically reminds an operator to take the material distributing positions. In order to improve the measurement efficiency, the unit rotary moving mechanism 11 drives the two stations to alternately measure.
With the present embodiment, for example, the following technical effects can be obtained.
A. High efficiency, meets the requirement of less than 10 seconds per piece
The robot takes out the workpiece to be measured from the tray, places the workpiece on the turntable 111, rotates the turntable 111 to a measuring position (measuring position) for measurement, and simultaneously, the measured workpiece is rotated out, and the robot takes the workpiece out and places the workpiece on a workpiece carrying seat (tray).
B. Automatic device accuracy check and automatic monitoring device abnormality
The operator can set a time interval or a workpiece number interval for checking the accuracy of the device, the device automatically acquires a standard component to check the device, and if the tolerance is exceeded, the device automatically stops and waits for the operator to process. If the workpiece continuously fails, the device automatically takes the standard component for testing, and if the standard component is abnormal, an alarm prompts an operator to process.
C. Automatic feeding and two-dimensional code identification
The operator can feed two boxes (two bins 3) each time, and when the boxes are empty, the automatic alarm prompts the operator to take the empty boxes and place new boxes. The robot arm 51 takes a material from the magazine, places on the turntable 111, rotates the work W to measure and performs two-dimensional code scanning. Considering the convenience of replacing the cartridge, the bin adopts a pull type structure.
D. Measurement database management
The data such as flow, pressure, temperature, time and the like in automatic measurement are in one-to-one correspondence with the two-dimensional codes of the workpiece, and database management is adopted, so that the functions of inquiring, counting, analyzing and the like are realized.
E. Automatic blanking
Automatic sorting and discharging, wherein the groups are 4 groups, and 4 material boxes are correspondingly placed. The flow rate is respectively four groups of flow rate super-lower difference, flow rate upper difference and flow rate super-upper difference. When the blanking manipulator moves, the servo unit circular grating and the position switch form XY movement position control, and an advanced bus driving mode is adopted to control the manipulator to move, so that 100% of accuracy of taking and discharging materials is ensured.
F. Safety protection
The device is provided with a safety door unit, and when the device is maintained and the cartridge is replaced, the device automatically enters a protection state and gives an alarm.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
In the above-described embodiment, the present invention has been described by taking needle valve flow rate measurement as an example, however, the present invention can be applied to measurement of other workpieces, and the configuration of the measuring unit is adjusted in accordance with the measurement content.
In the above embodiment, the two-dimensional code scanning unit 2 was described as an example of the workpiece number information scanning unit, but the present invention is not limited to recording the number information of the workpiece by the two-dimensional code, and for example, the bar code or the number may be recorded, and the corresponding image processing means may be provided to identify the number when the number is recorded.
In addition, the number information scanning unit may be omitted, and the three-coordinate material moving unit 5 may directly place the workpieces measured by the measuring unit 1 into the corresponding material bins 4 for discharging, that is, the measured workpieces are only divided into four groups, and the measurement result is not recorded for each workpiece.
In the above embodiment, the disk-shaped turntable 111 was described as an example of the support member for supporting the work holder and the rotary work, but the shape thereof is not particularly limited, and may be a long plate shape.
In the above embodiment, the two work seats 112A and 112B are provided, but the present invention is not limited to this, and two, four, etc. may be added, and in this case, it is sufficient to ensure that one work seat is rotated to the measurement position and the other work seat is rotated to the loading and unloading position, and in this respect, the two work seats may not be disposed at 180 ° therebetween.
The three-coordinate transfer unit 5 is exemplified as a workpiece transfer unit for transferring a workpiece, however, the present invention is not limited to this, and other configurations of transfer units are possible.
Claims (5)
1. A measuring device is characterized in that the measuring device is used for measuring the flow of a needle valve body,
comprising the following steps:
a loading bin (3) in which a workpiece (W) to be inspected is stored;
a workpiece handling unit (5) for handling the workpiece (W), the workpiece handling unit being a three-coordinate transfer unit (5), wherein the three-coordinate transfer unit (5) has:
a 1 st guide rail extending in the 1 st direction in the horizontal direction;
a pair of 2 nd guide rails disposed at both ends of the 1 st guide rail and extending in a 2 nd direction in a horizontal direction, the 2 nd direction being perpendicular to the 1 st direction, the 1 st guide rail moving along the 2 nd guide rail;
an up-down driving mechanism mounted on the 1 st guide rail and moving along the 1 st guide rail;
a manipulator (51) mounted to the up-down drive mechanism;
a measuring unit (1), wherein the manipulator (51) conveys the workpiece (W) in the feeding bin (3) to the measuring unit (1), and the measuring unit (1) measures the workpiece (W);
a number information scanning unit (2), wherein the number information scanning unit (2) scans the number information of the workpiece (W) measured by the measuring unit (1), the workpiece (W) scanned by the number information scanning unit (2) is conveyed to a discharging bin (4) by the manipulator (51),
the blanking stock bin (4) is used for conveying the workpiece (W) measured by the measuring unit (1) to the blanking stock bin (4) by the manipulator (51),
the measuring unit (1) comprises a rotary movement mechanism (11) and a measuring mechanism (12),
the rotary movement mechanism (11) has:
a pair of work holders (112A, 112B) on which the work (W) can be placed;
a support member (111) in which the workpiece holders (112A, 112B) are disposed so as to be vertically movable with respect to each other across a rotation center of the support member (111), the support member (111) being disposed so as to face each other;
a rotation driving mechanism (113) for driving the support member (111) to horizontally rotate so that the workpiece holders (112A, 112B) are switched between a loading and unloading position at which the workpiece (W) can be placed by the robot arm (51) and removed by the numbering information scanning unit (2) and a measuring position at which the workpiece can be measured by the measuring mechanism (12),
when one of the pair of workpiece seats (112A, 112B) is positioned at the loading and unloading position and the other is positioned at a measuring position, wherein the measuring unit (1) is further provided with a jacking mechanism (13), the measuring mechanism (12) is provided with a pressing head (123), the jacking mechanism (13) jacks the workpiece seat positioned at the measuring position and clamps the workpiece positioned on the workpiece seat with the pressing head (123) so as to measure the workpiece, the workpiece is supplied with oil through a high-pressure oil supply unit during measurement,
the feeding bin (3) is arranged between the discharging bin (4) and the measuring unit (1).
2. The measurement device according to claim 1, wherein the number information scanning unit is a two-dimensional code scanning unit.
3. The measuring device according to any one of claims 1-2, characterized in that the loading bin (3) and the unloading bin (4) are structurally universal.
4. The measurement device according to any one of claims 1-2, wherein the loading bin (3) and the unloading bin (4) are drawer bins.
5. The measuring device according to claim 4, further comprising a safety cover frame (101) covering the loading bin (3), the workpiece carrying unit (5), the measuring unit (1), and the unloading bin (4), wherein the safety cover frame (101) has an opening (101 a) opened to the outside at a position facing the loading bin (3) and the unloading bin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710791727.XA CN107449598B (en) | 2017-09-05 | 2017-09-05 | Measuring device and needle valve flow measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791727.XA CN107449598B (en) | 2017-09-05 | 2017-09-05 | Measuring device and needle valve flow measuring device |
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| CN107449598A CN107449598A (en) | 2017-12-08 |
| CN107449598B true CN107449598B (en) | 2024-03-26 |
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| CN112834206A (en) * | 2021-01-06 | 2021-05-25 | 芜湖优能自动化设备有限公司 | Full-automatic pressure regulating test equipment of pressure valve |
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