CN220120620U - Electric pencil sclerometer calibrating device - Google Patents
Electric pencil sclerometer calibrating device Download PDFInfo
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- CN220120620U CN220120620U CN202321434098.2U CN202321434098U CN220120620U CN 220120620 U CN220120620 U CN 220120620U CN 202321434098 U CN202321434098 U CN 202321434098U CN 220120620 U CN220120620 U CN 220120620U
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- screw rod
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- pencil hardness
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- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012625 in-situ measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of measurement and test, and particularly relates to an electric pencil hardness tester calibration device. The adopted force sensor improves the calibration accuracy, so that the accuracy of the calibration device is higher. Comprises a calibration device main body arranged on a main machine of the electric pencil hardness tester; the calibrating device main body comprises an outer frame with a rectangular cross section, and the bottom of the outer frame is erected on the top of the electric pencil hardness tester main machine through a supporting column; the hand-operated screw rod lifter is fixed in the outer frame, the bottom end of the screw rod of the hand-operated screw rod lifter is connected with a frame structure through a force transducer, and the frame structure is positioned below the outer frame; and the inner wall of the bottom of the frame structure is provided with a tray.
Description
Technical Field
The utility model belongs to the technical field of measurement and test, and particularly relates to an electric pencil hardness tester calibration device.
Background
Pencil hardness is an essential index for quality assurance in the paint manufacturing and paint use industries. The electric pencil hardness meter is a tool for measuring the hardness of a coating film, and paint hardness is represented by the pencil mark which is the hardest pencil mark which does not cause the damage of the coating film by scratching the coating film of a product with a pencil mark of a certain hardness. The machine body is usually composed of the machine body, the matched weight and the pencil, and has the advantages of accuracy, reliability, durability, high testing efficiency and the like.
At present, a set of device for integrally calibrating an electric pencil hardness tester at home and abroad does not exist, and a balance is basically adopted to calibrate matched weights, the weight of the weights is approximately equal to the force acting on a pen point, and the force acting on the pen point is indirectly calibrated. However, this method does not achieve the effect of calibrating the motorized pencil hardness tester, but only the mating weight is calibrated and the weight of the weight is not equal to the force acting on the nib. Therefore, the original measurement mode is not in-situ measurement, and the electric pencil hardness tester is not truly calibrated.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides the electric pencil hardness tester calibration device which is simple in principle and easy to realize.
In order to achieve the above purpose, the utility model adopts the following technical proposal that the utility model comprises a calibration device main body arranged on a main machine of an electric pencil hardness tester; the calibrating device is characterized in that the calibrating device main body comprises an outer frame with a rectangular section, and the bottom of the outer frame is erected on the top of the electric pencil hardness tester main frame through a supporting column.
The hand-operated screw rod lifter is fixed in the outer frame, the bottom end of the screw rod of the hand-operated screw rod lifter is connected with a frame structure through a force transducer, and the frame structure is positioned below the outer frame; and the inner wall of the bottom of the frame structure is provided with a tray.
Further, the load cell adopts a bidirectional load cell or a tension sensor.
Further, the center of the tray is carved with a mark.
Further, a first level indicator (i.e. a micro level) is arranged at the top of the outer frame, and a second level indicator (i.e. a micro level) is arranged at the top of the main machine of the hardness tester.
Further, the hand-operated screw rod lifter and the force sensor are both positioned in the outer frame; the hand-operated screw rod lifter is fixed in the outer frame through a cross beam, the cross beam is horizontally arranged and fixedly connected to the inner wall of the outer frame, an opening for fixing a hand-operated screw rod lifter shell is formed in the middle of the cross beam, and the hand-operated screw rod lifter shell is fixed at the opening through a fastener; and the screw rod of the hand-operated screw rod lifter keeps the vertical direction; the measuring end at the bottom of the force sensor is connected with the top of the frame structure through a rod piece, the top of the rod piece is connected with the measuring end at the bottom, and the bottom of the rod piece penetrates out of the through hole at the bottom of the outer frame; and the rod piece can move up and down along the through hole at the bottom of the outer frame under the drive of the hand-operated screw rod lifter.
Further, the frame structure comprises an upper tip frame and a lower rectangular frame, and the tip frame and the rectangular frame are fixedly connected into a whole.
Furthermore, the hand-operated part of the hand-operated screw rod lifter extends out from the side opening at one side of the outer frame, and the hand-operated part can rotate freely at the opposite side opening.
Further, the top measuring end of the bidirectional force transducer is connected with the bottom end of the screw rod, and the bottom measuring end of the bidirectional force transducer is connected with the top of the frame structure.
Further, at least 2 support columns are arranged at the bottom of the outer frame and stand on the top of the main machine of the sclerometer through the support columns.
Furthermore, the bottom of the support column is provided with an anchor bolt, the support column adopts a hollow structure, the inner wall of the bottom of the support column is provided with internal threads, the top of the anchor bolt stretches into the support column, and the external thread end of the anchor bolt is connected with the internal threads of the inner wall of the support column; the support column stands on the top of the main machine of the sclerometer through foundation bolts.
Compared with the prior art, the utility model has the beneficial effects.
The calibration device is designed for the electric pencil hardness tester, and the adopted force sensor improves the calibration accuracy. So that the accuracy of the calibration device is higher.
The frame structure for measurement and the tray for measurement of the calibration device provide a platform capable of in-situ measurement.
The level controller of the utility model ensures the level state of the calibrating device and the level state of the sclerometer during calibration.
The center point is carved on the measuring tray, so that the pen point of the pencil is positioned at the center of the measuring tray when the position of the calibrating device is adjusted conveniently.
Drawings
The utility model is further described below with reference to the drawings and the detailed description. The scope of the present utility model is not limited to the following description.
FIG. 1 is a schematic diagram of the overall structure of a calibration device.
Fig. 2 is a schematic front view of the calibration device in a calibration state.
Fig. 3 is a schematic side view of the calibration device in a calibration state.
Fig. 4 is a schematic diagram of a simulated pencil structure.
In the figure, 1. Calibrating the device body; 2. a beam fixing screw; 3. a freely movable joint of the sclerometer; 4. a durometer leveling nut; 5. an electric pencil hardness tester host; 6. a first level indicator; 7. an adjustment knob (i.e., a hand-shake); 8. a support column; 9. simulating a pencil; 10. a second level indicator; 11. a counterweight; 12. a pencil fixing screw; 13. a frame structure; 14. a tray; 15. an adjustable anchor screw; 17. a screw rod; 18. an outer frame beam; 19. a hand screw rod lifter; 20. a force sensor; 21. an outer frame; 22. a counterweight nut; 23. a bolt; 24. and fixing the counterweight.
Detailed Description
As shown in fig. 1 to 4, the electric pencil hardness tester of the present utility model includes a tester main body 1 mounted on an electric pencil hardness tester main body 5; the calibrating device main body 1 comprises an outer frame 21 with a rectangular cross section, and the bottom of the outer frame stands on the top of the electric pencil hardness tester host 5 through a supporting column 8.
A hand-operated screw rod lifter 19 is fixed in the outer frame 21, the bottom end of a screw rod 17 of the hand-operated screw rod lifter 19 is connected with a frame structure 13 through a bidirectional force transducer 20, and the frame structure 13 is positioned below the outer frame 21; and a tray 14 is arranged on the inner bottom wall of the frame structure 13. The center of the tray 14 is marked.
The top measuring end of the bidirectional force transducer 20 is connected with the bottom end of the screw rod 17, and the bottom measuring end of the bidirectional force transducer 20 is connected with the top of the frame structure 13.
In a first preferred embodiment, the top of the outer frame is provided with a first level indicator 6 (i.e., a micro level), and the top of the main frame of the durometer is provided with a second level indicator 10 (i.e., a micro level).
In the second preferred scheme, the hand-operated screw rod lifter 19 and the bidirectional force transducer 20 are both positioned in the outer frame; the hand-operated screw rod lifter 19 is fixed in the outer frame through a cross beam (outer frame cross beam 18), the cross beam (outer frame cross beam 18) is horizontally arranged and fixedly connected to the inner wall of the outer frame, an opening for fixing the shell of the hand-operated screw rod lifter 19 is formed in the middle of the cross beam, and the shell of the hand-operated screw rod lifter 19 is fixed at the opening through a fastener; and the screw rod 17 of the hand-operated screw rod 17 lifter 19 keeps the vertical direction; the bottom measuring end of the bidirectional force transducer 20 is connected with the top of the frame structure 13 through a rod, the top of the rod is connected with the bottom measuring end, and the bottom of the rod penetrates out of the through hole at the bottom of the outer frame; and the rod piece can move up and down along the through hole at the bottom of the outer frame under the drive of the hand-operated screw rod lifter 19.
The hand-operated part (i.e. the adjusting knob) of the hand-operated screw rod lifter 19 extends from the side opening at one side of the outer frame 21, and the hand-operated part can rotate freely at the opposite side opening. The manual screw lifter 19 works on the principle that a motor or a manual driving worm rotates, the worm drives a worm wheel to rotate in a decelerating way, an inner cavity of the worm wheel is processed into an inner thread, and the screw rod is driven to move up and down. Since the hand-operated screw lifter 19 is a conventional technology, it is commercially available and will not be described in detail herein.
The space in the outer frame 21 can satisfy the condition that the pencil point is positioned at the center of the measuring tray 14 after the screw 17 descends by a certain distance.
In a third preferred scheme, at least 2 support columns 8 are arranged at the bottom of the outer frame, and the outer frame is erected on the top of the main machine of the sclerometer through the support columns 8. The bottom of the support column 8 is provided with an anchor bolt (namely an adjustable anchor screw 15), the support column 8 adopts a hollow structure, the inner wall of the bottom of the support column 8 is provided with internal threads, the top of the anchor bolt extends into the support column 8, and the external thread end of the anchor bolt is connected with the internal threads of the inner wall of the support column 8; the support column 8 stands on the top of the main machine of the hardness tester through foundation bolts.
The frame structure 13 includes an upper tip frame and a lower rectangular frame, and the tip frame and the rectangular frame are fixedly connected into a whole.
The specific working process and the calibration process are as follows.
1. Before the calibration work is carried out, firstly, the foot screw of the electric pencil hardness tester is adjusted to enable the miniature level meter on the hardness tester to indicate the level.
2. The pencil is fixed by a pencil fixing screw 12, a bolt for adjusting the position of the pencil is adjusted to enable the pencil point and the balance weight 11 of the hardness tester to be on the same axis, the leveling nut 4 of the hardness tester is adjusted to enable the lever to be at a balance position, and the beam fixing screw 2 of the hardness tester is locked. The bolt for adjusting the position of the pen point of the analog pencil can ensure that the pen point is adjusted to the axis of the weight, and the counter weight nuts with different weights can ensure that the analog pencil is suitable for pencils of different types.
In the embodiment 1, the pencil can adopt a simulated pencil, the simulated pencil adopts a bolt as a pencil body, the end part of the pencil body is screwed with a counterweight nut, the pencil body is screwed with a fixed counterweight, and different fixed counterweights are replaced according to different pencils, so that the purpose of different types of pencils is achieved. When the pencil is used, the simulation pencil is fixed on the pencil hardness tester, the hardness tester is provided with a hole special for placing the pencil, the simulation pencil can be placed in the special hole, the position of the fixed counterweight 24 is adjusted to be just in the middle of the hole, the pencil fixing screw 12 is rotated to press the fixed counterweight 24, so that the simulation pencil cannot be moved at will, and the position of the pencil lead of the simulation pencil can be adjusted only by rotating the bolt of the simulation pencil.
3. And then the calibration device is placed on the electric pencil hardness tester, the placement position is adjusted to enable the simulated pencil point to be positioned at the center of the measuring tray, the foundation screw of the calibration device is adjusted to enable the micro level meter on the calibration device to indicate the level, and the simulated pencil point is confirmed to be positioned at the center of the measuring tray again.
4. And finally, zeroing the display of the precision force sensor.
When the calibration work is carried out, the measuring frame and the measuring tray are lifted through the adjusting knob, the measuring tray is contacted with the simulated pencil point, the fixed screw 2 of the beam of the sclerometer and the beam of the sclerometer are separated by a small gap, and the reading on the display of the precision force sensor is the force value of the electric pencil sclerometer.
5. The above work is repeated for 3 times, and the calibration work of the electric pencil hardness tester is completed.
It should be understood that the foregoing detailed description of the present utility model is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present utility model, and those skilled in the art should understand that the present utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.
Claims (10)
1. An electric pencil hardness tester calibration device comprises a calibration device main body arranged on an electric pencil hardness tester host; the method is characterized in that: the calibrating device main body comprises an outer frame with a rectangular cross section, and the bottom of the outer frame is erected on the top of the electric pencil hardness tester main machine through a supporting column;
the hand-operated screw rod lifter is fixed in the outer frame, the bottom end of the screw rod of the hand-operated screw rod lifter is connected with a frame structure through a force transducer, and the frame structure is positioned below the outer frame; and the inner wall of the bottom of the frame structure is provided with a tray.
2. The motorized pencil hardness tester of claim 1, wherein: the force transducer adopts a bidirectional force transducer or a tension transducer.
3. A motorized pencil hardness tester as set forth in any one of claims 1-2, wherein: the center of the tray is engraved with a mark.
4. A motorized pencil hardness tester as set forth in any one of claims 1-2, wherein: the top of frame is provided with the level indicator one, the top of sclerometer host computer is provided with the level indicator two.
5. The motorized pencil hardness tester of claim 2, wherein: the hand-operated screw rod lifter and the force sensor are both positioned in the outer frame; the hand-operated screw rod lifter is fixed in the outer frame through a cross beam, the cross beam is horizontally arranged and fixedly connected to the inner wall of the outer frame, an opening for fixing a hand-operated screw rod lifter shell is formed in the middle of the cross beam, and the hand-operated screw rod lifter shell is fixed at the opening through a fastener; and the screw rod of the hand-operated screw rod lifter keeps the vertical direction; the measuring end at the bottom of the force sensor is connected with the top of the frame structure through a rod piece, the top of the rod piece is connected with the measuring end at the bottom, and the bottom of the rod piece penetrates out of the through hole at the bottom of the outer frame; and the rod piece can move up and down along the through hole at the bottom of the outer frame under the drive of the hand-operated screw rod lifter.
6. A motorized pencil hardness tester as set forth in any one of claims 1-2, wherein: the frame structure comprises an upper tip frame and a lower rectangular frame, and the tip frame and the rectangular frame are fixedly connected into a whole.
7. The motorized pencil hardness tester of claim 5, wherein: the hand portion of hand formula lead screw lift by the side mouth of frame one side stretches out, and hand portion can the relative side mouth free rotation.
8. The motorized pencil hardness tester of claim 5, wherein: the top measuring end of the bidirectional force transducer is connected with the bottom end of the screw rod, and the bottom measuring end of the bidirectional force transducer is connected with the top of the frame structure.
9. A motorized pencil hardness tester as set forth in any one of claims 1-2, wherein: the bottom of the outer frame is provided with at least 2 support columns, and the outer frame is erected on the top of the main machine of the sclerometer through the support columns.
10. The motorized pencil hardness tester of claim 9, wherein: the bottom of the support column is provided with an anchor bolt, the support column adopts a hollow structure, the inner wall of the bottom of the support column is provided with internal threads, the top of the anchor bolt stretches into the support column, and the external thread end of the anchor bolt is connected with the internal threads of the inner wall of the support column; the support column stands on the top of the main machine of the sclerometer through foundation bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321434098.2U CN220120620U (en) | 2023-06-07 | 2023-06-07 | Electric pencil sclerometer calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321434098.2U CN220120620U (en) | 2023-06-07 | 2023-06-07 | Electric pencil sclerometer calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120620U true CN220120620U (en) | 2023-12-01 |
Family
ID=88916414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321434098.2U Active CN220120620U (en) | 2023-06-07 | 2023-06-07 | Electric pencil sclerometer calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120620U (en) |
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2023
- 2023-06-07 CN CN202321434098.2U patent/CN220120620U/en active Active
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