CN111207818A - High accuracy electron weighing sensor detects uses loading frame - Google Patents

High accuracy electron weighing sensor detects uses loading frame Download PDF

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Publication number
CN111207818A
CN111207818A CN202010041079.8A CN202010041079A CN111207818A CN 111207818 A CN111207818 A CN 111207818A CN 202010041079 A CN202010041079 A CN 202010041079A CN 111207818 A CN111207818 A CN 111207818A
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CN
China
Prior art keywords
loading frame
weighing sensor
loading
precision electronic
slide block
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CN202010041079.8A
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Chinese (zh)
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CN111207818B (en
Inventor
陈国华
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Changshu Environmental Test Facility Co ltd
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Changshu Environmental Test Facility Co ltd
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Priority to CN202010041079.8A priority Critical patent/CN111207818B/en
Publication of CN111207818A publication Critical patent/CN111207818A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus
    • G01G23/01Testing or calibrating of weighing apparatus

Abstract

The invention discloses a loading frame for detecting a high-precision electronic weighing sensor, wherein a loading frame body comprises a fixed bottom plate provided with a slide rail, a slide block driven by an air cylinder is arranged on the fixed bottom plate, the slide block is in sliding installation and matching with the slide rail, and a wave ball screw selectively in limit contact with the side surface of the loading frame body is fixedly arranged on the slide block; meanwhile, an installation base for supporting points of the high-precision electronic weighing sensor is installed on the fixed bottom plate, the bottom of the loading frame body is fixedly connected with a universal connecting rod, the universal connecting rod penetrates through the fixed bottom plate, and the lower end part of the universal connecting rod is fixedly connected with a hanging piece used for being matched with a loading weight in a hanging mode; according to the invention, by arranging the specific loading frame positioning device, the situation that the loading frame body rotates in the weight loading and unloading processes to cause the loading weight to shake and generate loading position deviation is effectively avoided, so that accurate data compensation can be realized in the manufacturing process of the high-precision electronic weighing sensor, and the manufacturing precision of a high-precision electronic weighing sensor product is finally ensured.

Description

High accuracy electron weighing sensor detects uses loading frame
Technical Field
The invention relates to the field of high-precision electronic weighing sensor manufacturing, in particular to a loading frame for detecting a high-precision electronic weighing sensor.
Background
The high-precision electronic weighing sensor has an indispensable step in the manufacturing process, namely the data consistency of the high-precision electronic weighing sensor in a load state is required to be tested in different temperature environments, namely whether the data of the load state are consistent is verified in different temperature testing environments of low temperature, normal temperature and high temperature, and if the testing data are deviated, the high-precision electronic weighing sensor can be compensated through technical means. Therefore, in order to realize the weighing performance of the high-precision electronic weighing sensor in different temperature environments, a loading device with a high-low temperature test box function is required to be adopted, wherein a sensor loading frame used for installing the tested high-precision electronic weighing sensor is arranged inside the high-low temperature test box of the loading device, and meanwhile, the universal connecting rod with a pendant is arranged on the lower portion of the sensor loading frame, so that the weight of the weights outside the high-low temperature test box is transmitted to the weighing sensor inside the box. When the loading, the weight is by the lift platform of bottom do decline and ascending motion, and when the temperature of high low temperature test case reached the test condition, the lift platform descends, and the weight hangs on the pendant of universal joint pole lower part, and the weight is the off-state with the lift platform, and on the weight of weight had just loaded the weighing sensor who is tested, after reading weighing sensor's data completion, the lift platform rose and held up the weight and accomplished the uninstallation with the pendant separation.
However, in the prior art, in the process of loading and unloading the weight, because the loading frame is in point contact with the tested sensor through the steel ball, the loading frame is easy to rotate at the horizontal position, so that the universal connecting rod drives the weight to rotate together, the loading position of the weight generates relative deviation, the repeatability of test data is influenced, that is, the data tested after each loading can be different, so that the compensation can not be correctly carried out, and the precision of a high-precision electronic weighing sensor product is influenced.
Disclosure of Invention
In view of the above, the present invention provides a loading frame for detecting a high-precision electronic weighing sensor, in which a specific loading frame positioning device is arranged to effectively prevent a loading frame body from rotating during weight loading and unloading processes to cause a loading weight to shake and generate a loading position shift, so that accurate data compensation can be realized during a manufacturing process of the high-precision electronic weighing sensor, and finally, the manufacturing precision of a high-precision electronic weighing sensor product is ensured.
The technical scheme adopted by the invention is as follows:
a loading frame for detecting a high-precision electronic weighing sensor is characterized in that a high-precision electronic weighing sensor to be detected is sleeved on a loading frame body, a steel ball is fixedly arranged in the loading frame body and is in limit contact with the high-precision electronic weighing sensor, the loading frame body further comprises a fixed bottom plate provided with a slide rail, a slide block driven by an air cylinder is arranged on the fixed bottom plate, the slide block is in sliding installation fit with the slide rail, and a bead screw in selective limit contact with the side surface of the loading frame body is fixedly arranged on the slide block; and simultaneously the last installation base that is used for the high accuracy electron weighing sensor strong point of installing of PMKD, the bottom fixed connection universal connecting rod of loading framework, universal connecting rod runs through PMKD, and its lower tip fixed connection be used for hanging complex pendant with the loading weight.
Preferably, the steel ball is fixedly installed in the loading frame through a fixing column.
Preferably, a screw mounting plate is fixedly mounted on the sliding block, and a ball screw in selective limiting contact with the loading frame body is fixedly mounted on the screw mounting plate.
Preferably, the fixing base plate is provided with a first linear slide rail and a second linear slide rail which are arranged in parallel, the first linear slide rail and the second linear slide rail are respectively provided with a first slide block and a second slide block in a sliding installation manner, and the first slide block and the second slide block are respectively fixedly installed and connected with the screw installation plate.
Preferably, the side of screw mounting panel fixed mounting respectively has first ripples pearl screw and second ripples pearl screw that are parallel arrangement, first ripples pearl screw and second ripples pearl screw respectively with loading frame side selectivity spacing contact.
Preferably, the distance between the first sliding block and the second sliding block is larger than the distance between the first wave ball screw and the second wave ball screw.
Preferably, the screw mounting plate is an integrally formed part, and the side surfaces of the screw mounting plate are respectively provided with a first lug and a second lug which are distributed in parallel, the first lug is fixedly provided with a first wave ball screw, and the second lug is fixedly provided with a second wave ball screw.
Preferably, a circular arc groove is formed between the first lug and the second lug.
The invention creatively arranges a positioning device for limiting and contacting a loading frame body, the limiting structure mainly comprises a fixed bottom plate, a slide rail, a slide block driven by a cylinder and a wave ball screw, the slide block slides and displaces along the slide rail under the driving action of the cylinder, so that the wave ball screw realizes the selective limiting and contacting with the side surface of the loading frame body, when the high-precision electronic weighing sensor is in a loading test state, the wave ball screw is in a non-limiting and contacting state with the side surface of the loading frame body, when the high-precision electronic weighing sensor is in an unloading non-test state, the wave ball screw drives and carries out the limiting and contacting with the side surface of the loading frame body through the cylinder, thereby effectively avoiding the loading position deviation caused by the shaking of the loading weight due to the rotation of the loading frame body in the loading and unloading processes, and realizing the accurate data compensation of the high-precision electronic weighing sensor in the manufacturing process, finally, the manufacturing precision of the high-precision electronic weighing sensor product is ensured.
Drawings
FIG. 1 is a top view of a lower load frame mounting structure in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a loading frame in a loading test state according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a loading frame in an unloaded non-test state according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention discloses a loading frame for detecting a high-precision electronic weighing sensor, wherein a high-precision electronic weighing sensor to be detected is sleeved on a loading frame body, a steel ball is fixedly arranged in the loading frame body and is in limit contact with the high-precision electronic weighing sensor, the loading frame body also comprises a fixed bottom plate provided with a slide rail, a slide block driven by an air cylinder is arranged on the fixed bottom plate, the slide block is in sliding installation fit with the slide rail, and a wave ball screw in selective limit contact with the side surface of the loading frame body is fixedly arranged on the slide block; and meanwhile, the fixed bottom plate is provided with an installation base for supporting points of the high-precision electronic weighing sensor, the bottom of the loading frame body is fixedly connected with a universal connecting rod, the universal connecting rod penetrates through the fixed bottom plate, and the lower end part of the universal connecting rod is fixedly connected with a hanging piece used for hanging the loading weight in a matched mode.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the loading frame for detecting a high-precision electronic weighing sensor shown in fig. 1, fig. 2 and fig. 3, a high-precision electronic weighing sensor 2 to be detected is sleeved on a loading frame body 1, a steel ball 3 is fixedly installed in the loading frame body 1, the steel ball 3 is in limit contact with the high-precision electronic weighing sensor 2, and preferably, in the present embodiment, the steel ball 3 is fixedly installed in the loading frame body 1 through a fixing column 31;
in the embodiment, the loading frame 1 further comprises a fixed bottom plate 12 provided with a slide rail 11, a slide block 14 driven by an air cylinder 13 is installed on the fixed bottom plate 12, the slide block 14 is in sliding installation and matching with the slide rail 11, and a wave ball screw 15 in selective limit contact with the side surface of the loading frame 1 is fixedly installed on the slide block 14; meanwhile, the fixed bottom plate 12 is provided with an installation base 21 for supporting points of the high-precision electronic weighing sensor 2, the bottom of the loading frame body 1 is fixedly connected with a universal connecting rod 4, the universal connecting rod 4 penetrates through a through hole 12a of the fixed bottom plate 12, and the lower end part of the universal connecting rod is fixedly connected with a hanging piece (not shown) used for being in suspension fit with a loading weight (not shown);
preferably, in the present embodiment, a screw mounting plate 16 is fixedly mounted on the slider 14, and a ball screw 15 selectively in position-limiting contact with the loading frame 1 is fixedly mounted on the screw mounting plate 16; particularly preferably, in order to ensure the sliding stability, in the present embodiment, the fixed base plate 12 is provided with a first linear slide rail 11a and a second linear slide rail 11b which are arranged in parallel, the first linear slide rail 11a and the second linear slide rail 11b are respectively provided with a first slider 14a and a second slider 14b in a sliding manner, and the first slider 14a and the second slider 14b are respectively fixedly connected with the screw mounting plate 16; a first wave bead screw 15a and a second wave bead screw 15b which are arranged in parallel are fixedly arranged on the side surface of the screw mounting plate 16 respectively, and the first wave bead screw and the second wave bead screw are in selective limit contact with the side surface of the loading frame body respectively; the distance between the first sliding block 14a and the second sliding block 14b is larger than the distance between the first wave ball screw 15a and the second wave ball screw 15b, so that good limiting contact on the side surface of the loading frame body 1 is further ensured under the effect of stable sliding displacement;
preferably, in the present embodiment, the screw mounting plate 16 is an integrally formed part, and the side surfaces thereof are respectively provided with a first lug 16a and a second lug 16b which are distributed in parallel, the first lug 16a is fixedly provided with a first wave ball screw 15a, and the second lug 16b is fixedly provided with a second wave ball screw 15 b; a circular arc groove 16c for reducing weight is formed between the first lug 16a and the second lug 16 b.
In the embodiment, a positioning device for limiting contact of the loading frame 1 is creatively arranged, the limiting structure mainly comprises a fixed bottom plate 12, a slide rail 11, a slide block 14 driven by a cylinder 13 and a wave ball screw 15, the slide block 14 slides along the slide rail 11 under the driving action of the cylinder 13, so that the wave ball screw 15 is in selective limiting contact with the side surface of the loading frame 1, when in actual use, the high-precision electronic weighing sensor 2 is in a loading test state, the wave ball screw 15 is in a non-limiting contact state with the side surface of the loading frame 1, when the high-precision electronic weighing sensor 2 is in an unloading non-test state, the wave ball screw 15 is driven by the cylinder 13 to be in limiting contact with the side surface of the loading frame 1, and further, the loading frame 1 is effectively prevented from rotating in the weight loading and unloading processes to cause the loading weight to shake and generate loading position offset, accurate data compensation can be realized in the manufacturing process of the high-precision electronic weighing sensor 2, and finally the manufacturing precision of the high-precision electronic weighing sensor 2 is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A loading frame for detecting a high-precision electronic weighing sensor is characterized by further comprising a fixed bottom plate provided with a slide rail, a slide block driven by an air cylinder is installed on the fixed bottom plate, the slide block is in sliding installation and matching with the slide rail, and a bead screw in selective limit contact with the side surface of the loading frame is fixedly installed on the slide block; and simultaneously the last installation base that is used for the high accuracy electron weighing sensor strong point of installing of PMKD, the bottom fixed connection universal connecting rod of loading framework, universal connecting rod runs through PMKD, and its lower tip fixed connection be used for hanging complex pendant with the loading weight.
2. The high-precision loading frame for detecting the electronic weighing sensor according to claim 1, wherein the steel balls are fixedly installed in the loading frame through fixing columns.
3. The high-precision electronic weighing sensor detecting loading frame according to claim 1, wherein a screw mounting plate is fixedly mounted on the slide block, and a bead screw selectively in limit contact with the loading frame body is fixedly mounted on the screw mounting plate.
4. The loading frame for detecting the high-precision electronic weighing sensor according to claim 3, wherein a first linear slide rail and a second linear slide rail are arranged on the fixed bottom plate in parallel, a first slide block and a second slide block are respectively installed on the first linear slide rail and the second linear slide rail in a sliding manner, and the first slide block and the second slide block are respectively fixedly installed and connected with the screw installation plate.
5. The loading frame for detecting the high-precision electronic weighing sensor according to claim 4, wherein a first wave ball screw and a second wave ball screw which are arranged in parallel are respectively and fixedly installed on the side surface of the screw installation plate, and the first wave ball screw and the second wave ball screw are respectively in selective limit contact with the side surface of the loading frame body.
6. The high-precision electronic load cell detecting load frame according to claim 5, wherein a distance between the first slider and the second slider is larger than a distance between the first wave ball screw and the second wave ball screw.
7. The load frame for detecting the high-precision electronic weighing sensor according to claim 5, wherein the screw mounting plate is an integrally formed member, and the side surfaces of the screw mounting plate are respectively provided with a first lug and a second lug which are distributed in parallel, the first lug is fixedly provided with a first wave ball screw, and the second lug is fixedly provided with a second wave ball screw.
8. The high-precision electronic load cell detecting load frame according to claim 7, wherein a circular arc groove is formed between the first lug and the second lug.
CN202010041079.8A 2020-01-15 2020-01-15 High accuracy electron weighing sensor detects uses loading frame Active CN111207818B (en)

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663418A1 (en) * 1990-06-19 1991-12-20 Lutrana Sa Device for weighing loads suspended from an overhead conveyor
US20060289207A1 (en) * 2004-12-14 2006-12-28 Mettler-Toledo Gmbh Weighing module with precisely-positionable overload protection device
CN101504307A (en) * 2009-03-26 2009-08-12 北京兆维科技股份有限公司 Manipulator cantilever weighing apparatus
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* Cited by examiner, † Cited by third party
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FR2663418A1 (en) * 1990-06-19 1991-12-20 Lutrana Sa Device for weighing loads suspended from an overhead conveyor
US20060289207A1 (en) * 2004-12-14 2006-12-28 Mettler-Toledo Gmbh Weighing module with precisely-positionable overload protection device
CN101504307A (en) * 2009-03-26 2009-08-12 北京兆维科技股份有限公司 Manipulator cantilever weighing apparatus
CN201765050U (en) * 2010-06-30 2011-03-16 福建省计量科学技术研究所 Large-sized weighter calibration system and self-positioning loading-unloading load measuring device of same
CN202716554U (en) * 2012-05-17 2013-02-06 深圳市汉拓数码有限公司 Nozzle adjusting device
CN202793911U (en) * 2012-10-16 2013-03-13 江南大学 Shaking-preventing device of Young modulus experiment instrument
CN204202739U (en) * 2014-07-22 2015-03-11 常熟市环境试验设备有限公司 Weighing apparatus accuracy detection proving installation
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CN206862485U (en) * 2017-07-13 2018-01-09 青岛中控机电设备有限公司 A kind of weighing system
CN107664494A (en) * 2017-09-01 2018-02-06 北京化工大学 The detection means that accurate measurement works settles under a kind of vibrating state
CN110196201A (en) * 2018-02-27 2019-09-03 梅特勒-托利多(常州)精密仪器有限公司 High-precision weighing system and weighing method, thermogravimetric analyzer and storage medium
CN209014119U (en) * 2018-07-10 2019-06-21 樊平 A kind of novel quality inspection balance unit
CN209541880U (en) * 2019-03-07 2019-10-25 郑州沃众电子衡器有限公司 A kind of Handy movable electronic crane scale
CN209848252U (en) * 2019-04-29 2019-12-27 合肥工业大学 Swing type loading device capable of calculating work

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