CN105500237A - Positioning and assembling structure of force measurement unit and use method - Google Patents
Positioning and assembling structure of force measurement unit and use method Download PDFInfo
- Publication number
- CN105500237A CN105500237A CN201510980998.0A CN201510980998A CN105500237A CN 105500237 A CN105500237 A CN 105500237A CN 201510980998 A CN201510980998 A CN 201510980998A CN 105500237 A CN105500237 A CN 105500237A
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- plate
- load cell
- slide
- rear plate
- assembling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a positioning and assembling structure of a force measurement unit and a use method, and belongs to the field of piezoelectric force measurement. Two sliding grooves are formed in a middle convex surface of a convex bottom plate and connected with a sliding plate through bolts. A lateral plate and a rear plate are connected with the convex bottom plate through two rows of bolts arranged side by side. The L-shaped sliding plate, the lateral plate and the rear plate are each provided with two sliding grooves which are connected with sliding rails through bolts. The sliding plate and the rear plate are each provided with two sliding rails. The lateral plate is provided with one sliding rail. Each sliding rail is provided with two sliding blocks. The sliding blocks and the sliding plate can be adjusted at multiple degrees of freedom, accurate positioning is achieved between a test piece and the structure, assembling and application of pre-tightening force are carried out, and assembling of force measurement units of different size models and application of the pre-tightening force are realized by means of base blocks of different models. The problem that when the pre-tightening force is applied to the force measurement unit, as friction force exists between an upper pressing block and a pre-tightening nut, the upper pressing block and a lower pressing block can not be aligned is solved, the assembling efficiency and assembling accuracy of the force measurement unit are improved, the labor intensity is relieved, the structure is simple, and the use is easy and convenient.
Description
Technical field
The present invention relates to a kind of load cell location, assembly structure and its using method, utilize and realize multiple degrees of freedom adjustment at three-dimensional rectangular coordinate space inner slide and slide plate, carry out clamping and assembling after completing the accurate location between test specimen and this structure, belong to piezoelectric force field, particularly the applying of piezoelectric force unit pretightning force and the application in assembling.
Background technology
Load cell is intermediate arrangement sensor, add the device for measuring force that additional pretension parts form, for measuring ground reaction force in the cutting force in metal cutting process, the impact force in crash tests, the recoil strength of rocket engine, vibration and frictional force, biomethanics etc.In order to eliminate sensor internal and the gap on the surface that contacts with lower lock block on load cell, improving the rigidity of load cell entirety, making load cell obtain good quiet, dynamic property; Ensure the linear of load cell and sensitivity uniformity, improve measuring accuracy, nearly all must pretension before the various types of load cell of use.Load cell mainly selects the pre-compact form of the studs in elasticity firmly beforehand means to realize from pretension.In assembling with in the process of load cell applying pretightning force, the rotation of a moment of torsion drive top board is produced owing to there is frictional force between pre-load nut and top board time tight, the position relationship between lower platen is caused to occur the phenomenon of misalignment, the rigging error caused thus directly affects the performance indications of load cell, especially larger side interference can be produced carrying out side force timing signal, staking-out work can be caused time serious to carry out, reduce certainty of measurement and the measurement capability of load cell.
At present, the open structure for load cell location, assembling both at home and abroad, people's major part by processing attached location structure or the irregular method such as hand adjustment, range estimation regulates the position of lower platen to carry out the assembling of load cell and the applying of pretightning force on load cell.Process attached location structure method and there is no versatility and extra processing may affect the performance of load cell, and also inconvenient when assembling, be unfavorable for large batch of production.The method such as hand adjustment, range estimation varies with each individual, and objective factor impact is larger, has unstability.Therefore need to design a kind of structure that can realize load cell and accurately locate, assemble.
Summary of the invention
The technical problem to be solved in the present invention is used for the structure of load cell location, assembling, design a kind of technological performance, reliable operation, structure is simple, easy to use, can overcome to the structure causing upper lower lock block misalignment drawback during load cell applying pretightning force owing to there is frictional force between upper holder block and pre-load nut, this structure not only increases efficiency of assembling and the assembly precision of load cell, and also improves the certainty of measurement of load cell.
The technical solution used in the present invention is:
This structure comprises convex base plate, L-type slide plate, side plate, rear plate, slide rail, slide block, cushion block and construction bolt; In the middle of convex base plate, convex surface is provided with two chutes, and L-type slide plate is bolted in the chute of convex base plate; Side plate is connected with convex base plate respectively by two row bolts side by side with rear plate; L-type slide plate, side plate and rear plate contact with each other, L-type slide plate, side plate with rear plate is opened respectively two chutes and is connected with slide rail by bolt, two slide rails installed respectively by L-type slide plate and rear plate, and a slide rail installed by side plate; Every bar slide rail fills two slide blocks, adopt slide block to be contacted with slide plate, face between side plate and rear plate respectively by the upper lower platen of load cell and be reduced into point cantact, prevent the existence of mismachining tolerance from causing positioning effects positioning precision, simultaneously slide block along slide rail move up and down prevent pretightning force from applying time slide block and load cell between the existence of the clamping force upper lower platen that the affects load cell trend of shrinking, under guarantee does not affect the prerequisite of location, assembling, pretightning force is applied on load cell accurately; Cushion block is placed in the convex surface of convex base plate, is positioned at L-type slide plate, side plate and rear plate and forms three dimensions, adopts the cushion block of different model to realize the assembling of different size model load cell and the applying of pretightning force; On chute, connecting bolt wing nut locking used is to facilitate adjustment.
Described convex base plate is vertical respectively with side plate joint face with rear plate, parallel with the joint face of L-type slide plate; The joint face of slide rail and chute is smooth; When the connecting bolt arranged in rows of side plate, rear plate and convex base plate prevents from applying pretightning force, side plate, rear plate are turned on one's side.
Be connected with weighted platform by the installing hole of convex base plate, load cell is placed in L-type slide plate, in the three dimensions that side plate and rear plate surround, limit its three degree of freedom, the position of coarse adjustment slide plate makes three sides of the upper lower lock block of load cell roughly contact with slide block, then slide rail and slide block is finely tuned, make it to contact intact with three faces of the upper lower lock block of load cell, L-type slide plate and rear plate adopt four point positioning respectively, limit two free degree, side plate adopts two-point locating to limit its one degree of freedom, six-freedom degree realizes limiting completely, finally the wing nut on tight slide plate, achieve the location of load cell, complete and pretightning force and assembling are applied to load cell.
Remarkable result of the present invention: the load cell location of design invention, assembly structure, by utilize can realize slide block that multiple degrees of freedom regulates and the accurate location that slide plate realizes between test specimen and this structure in three-dimensional rectangular coordinate space after carry out stepping up and assembling.Can be applicable in the load cell such as Aero-Space, defence and military Force meansurement project.This device stability is good, structure is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is the principle schematic of structure of the present invention.
Fig. 2 is U-shaped base arrangement schematic diagram.
Fig. 3 is lateral plate structure schematic diagram.
Fig. 4 is back plate structure schematic diagram.
Fig. 5 is the installation diagram of slide block, slide rail.
Fig. 6 is the general three figure of structure.
In figure: 1 convex base plate connecting hole; 2 chutes; 3 convex base plates; 4 slide plate connecting bolts; 5 wing nuts; 6L type slide plate; 7 slide blocks; 8 slide rails; 9 side plates; Plate after 10; 11 cushion blocks; 12 slide rail connecting bolts; 13 rear flank plate connecting bolts; The joint face of a convex base plate and side plate; The joint face of b convex base plate and rear plate; The joint face of c slide plate and slide rail; The joint face of d side plate and slide rail; The joint face of plate and slide rail after e; The joint face of f slide rail and each plate.
Detailed description of the invention
The specific embodiment of the present invention is described in detail by reference to the accompanying drawings with technical scheme.
As shown in Figure 1, the middle convex surface of U-shaped base plate 3 matches with slide plate 6, and U-shaped base plate 3 is connected with slide plate 6 by two chutes 2 by slide plate connecting bolt 4, and locks with wing nut 5; Rear plate 10 matches with the joint face e of U-shaped base plate, and U-shaped base plate 3 is rigidly connected by connecting bolt 13 with rear plate 10; Side plate 9 matches with the joint face d of U-shaped base plate, and U-shaped base plate 3 is rigidly connected by connecting bolt 13 with side plate 9; The joint face f of slide rail 8 matches with slide plate, side plate, rear plate, and slide plate, rear plate are installed two strip side plates and installed one, to be connected and to lock with wing nut by slide rail connecting bolt 12 with each plate; Every bar slide rail 8 is equipped with two slide blocks 7.Certain perpendicularity is ensured between the joint face b of U-shaped base plate and rear plate and the joint face a of U-shaped base plate and side plate during assembling; The joint face d of the joint face c of the joint face f of slide rail and each plate and slide plate and slide rail, side plate and slide rail, between rear plate and the joint face e of slide rail, less roughness to be had; Two ribs of U-shaped base plate will have relatively large gauge for the connection with rear plate; When the connecting bolt arranged in rows of side plate, rear plate and U-shaped base plate prevents from applying pretightning force, rear flank plate is turned on one's side.
During use, be connected with weighted platform by the installing hole of U-shaped base plate, load cell is put slide plate, side plate, in the three dimensions that rear plate surrounds, limit its three degree of freedom, the position of coarse adjustment slide plate makes three sides of the upper lower lock block of load cell roughly contact with slide block, then slide rail is finely tuned, slide block makes it to contact intact with three faces of the upper lower lock block of load cell, slide plate, rear plate adopts four point positioning respectively, limit two free degree, side plate adopts two-point locating to limit its one degree of freedom, six-freedom degree realizes limiting completely, finally the wing nut on tight slide plate, achieve the location of load cell, just can apply pretightning force and assembling to load cell afterwards.Location to different size model load cell and assembling can be realized by selecting suitable cushion block.
Although the present invention to invention has been detailed description, not limits the present invention with above-described embodiment with above-mentioned preferred embodiment.Those skilled in the art should recognize when the technical characteristic do not departed from given by the present invention and scope, the increase done technology, with the replacement of some same contents of this area, all should belong to protection scope of the present invention.
Claims (4)
1. load cell location, an assembly structure, is characterized in that, this load cell location, assembly structure comprise convex base plate, L-type slide plate, side plate, rear plate, slide rail, slide block, cushion block and construction bolt; In the middle of convex base plate, convex surface is provided with two chutes, and L-type slide plate is bolted in the chute of convex base plate; Side plate is connected with convex base plate respectively by two row bolts side by side with rear plate; L-type slide plate, side plate and rear plate contact with each other, L-type slide plate, side plate with rear plate is opened respectively two chutes and is connected with slide rail by bolt, two slide rails installed respectively by L-type slide plate and rear plate, and a slide rail installed by side plate; Every bar slide rail fills two slide blocks, adopt slide block to be contacted with slide plate, face between side plate and rear plate respectively by the upper lower platen of load cell and be reduced into point cantact, simultaneously slide block along slide rail move up and down prevent pretightning force from applying time slide block and load cell between the existence of the clamping force upper lower platen that the affects load cell trend of shrinking, under guarantee does not affect the prerequisite of location, assembling, pretightning force is applied on load cell accurately; Cushion block is placed in the convex surface of convex base plate, is positioned at L-type slide plate, side plate and rear plate and forms three dimensions, adopts the cushion block of different model to realize the assembling of different size model load cell and the applying of pretightning force.
2. load cell location according to claim 1, assembly structure, it is characterized in that, described convex base plate is vertical respectively with side plate joint face with rear plate, parallel with the joint face of L-type slide plate; The joint face of slide rail and chute is smooth; When the connecting bolt arranged in rows of side plate, rear plate and convex base plate prevents from applying pretightning force, side plate, rear plate are turned on one's side.
3. load cell location according to claim 1 and 2, assembly structure, it is characterized in that, on described chute, connecting bolt wing nut used is locked, to facilitate adjustment.
4. the arbitrary described load cell location of claim 1-3, the using method of assembly structure, it is characterized in that, be connected with weighted platform by the installing hole of convex base plate, load cell is placed in L-type slide plate, in the three dimensions that side plate and rear plate surround, limit its three degree of freedom, the position of coarse adjustment slide plate makes three sides of the upper lower lock block of load cell roughly contact with slide block, then slide rail and slide block is finely tuned, make it to contact intact with three faces of the upper lower lock block of load cell, L-type slide plate and rear plate adopt four point positioning respectively, limit two free degree, side plate adopts two-point locating to limit its one degree of freedom, six-freedom degree realizes limiting completely, finally the wing nut on tight slide plate, achieve the location of load cell, complete and pretightning force and assembling are applied to load cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980998.0A CN105500237B (en) | 2015-12-23 | 2015-12-23 | Positioning and assembling structure of force measurement unit and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980998.0A CN105500237B (en) | 2015-12-23 | 2015-12-23 | Positioning and assembling structure of force measurement unit and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105500237A true CN105500237A (en) | 2016-04-20 |
| CN105500237B CN105500237B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510980998.0A Expired - Fee Related CN105500237B (en) | 2015-12-23 | 2015-12-23 | Positioning and assembling structure of force measurement unit and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428173A (en) * | 2020-10-20 | 2021-03-02 | 许继集团有限公司 | C-shaped guide rail quick fixing device |
| CN113021063A (en) * | 2021-03-18 | 2021-06-25 | 长沙民政职业技术学院 | High-quality metal handicraft processingequipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0093026A2 (en) * | 1982-04-28 | 1983-11-02 | Inoue-Japax Research Incorporated | Spark erosion machine |
| KR20110053532A (en) * | 2009-11-16 | 2011-05-24 | 선진파워테크(주) | Lapping machine for lapping drive shaft circle surface |
| CN202886045U (en) * | 2012-10-11 | 2013-04-17 | 东莞市科隆电机有限公司 | Electric spindle dynamometer |
| CN104626014A (en) * | 2015-02-12 | 2015-05-20 | 安徽江淮汽车股份有限公司 | Dynamometer positioning device |
| CN204748402U (en) * | 2015-06-03 | 2015-11-11 | 同济大学 | Dynamometer anchor clamps |
-
2015
- 2015-12-23 CN CN201510980998.0A patent/CN105500237B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0093026A2 (en) * | 1982-04-28 | 1983-11-02 | Inoue-Japax Research Incorporated | Spark erosion machine |
| EP0093026A3 (en) * | 1982-04-28 | 1984-03-28 | Inoue-Japax Research Incorporated | Spark erosion machine |
| KR20110053532A (en) * | 2009-11-16 | 2011-05-24 | 선진파워테크(주) | Lapping machine for lapping drive shaft circle surface |
| CN202886045U (en) * | 2012-10-11 | 2013-04-17 | 东莞市科隆电机有限公司 | Electric spindle dynamometer |
| CN104626014A (en) * | 2015-02-12 | 2015-05-20 | 安徽江淮汽车股份有限公司 | Dynamometer positioning device |
| CN204748402U (en) * | 2015-06-03 | 2015-11-11 | 同济大学 | Dynamometer anchor clamps |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428173A (en) * | 2020-10-20 | 2021-03-02 | 许继集团有限公司 | C-shaped guide rail quick fixing device |
| CN113021063A (en) * | 2021-03-18 | 2021-06-25 | 长沙民政职业技术学院 | High-quality metal handicraft processingequipment |
| CN113021063B (en) * | 2021-03-18 | 2022-08-09 | 长沙民政职业技术学院 | High-quality metal handicraft processingequipment |
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| Publication number | Publication date |
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| CN105500237B (en) | 2017-05-03 |
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Granted publication date: 20170503 Termination date: 20211223 |
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