CN113124726B - Solebar and longeron sheet material are with examining utensil - Google Patents
Solebar and longeron sheet material are with examining utensil Download PDFInfo
- Publication number
- CN113124726B CN113124726B CN202110306904.7A CN202110306904A CN113124726B CN 113124726 B CN113124726 B CN 113124726B CN 202110306904 A CN202110306904 A CN 202110306904A CN 113124726 B CN113124726 B CN 113124726B
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- longitudinal beam
- detection base
- groove
- positioning pin
- frame
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention relates to the technical field of automobile manufacturing, and discloses a checking fixture for a frame longitudinal beam and a longitudinal beam plate, which comprises an installation platform, a detection base, a positioning pin, a pressing rod and a movable pressing block, wherein the detection base is detachably arranged on the installation platform, two sides of the upper end of the detection base are provided with reference blocks, the positioning pin is embedded on the detection base, the upper end of the positioning pin protrudes out of the upper surface of the detection base, the pressing rod is inserted into the positioning pin, and the movable pressing block is detachably arranged at the upper end of the pressing rod. The checking fixture for the frame longitudinal beam and the longitudinal beam plate provided by the invention not only can effectively position the frame longitudinal beam or the longitudinal beam plate, but also can reduce manual measurement errors by adopting a three-dimensional coordinate measuring instrument for measurement, improve the automation degree, establish a measurement coordinate system and improve the measurement precision.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a frame longitudinal beam and a detection tool for a longitudinal beam plate.
Background
The manufacturing precision of the commercial vehicle frame is an important influence factor of various performances (such as stability, economy, smoothness and the like) of a vehicle, and is also an extremely important influence factor of one-time correct and convenient assembly of the total assembly. The key of the manufacturing precision of the frame lies in the manufacturing precision of the frame longitudinal beam and the longitudinal beam plate thereof. The main manufacturing precision parameters (such as aperture, pitch, hole margin, hole position degree, camber and turtleback degree) of the manufacturing precision of the high-precision and low-precision double-layer metal-clad steel plate are required to be accurately measured and reasonably evaluated, and meanwhile, the manufacturing process level of each process can be optimized and improved according to the measurement result. At present, the measuring mode of the main manufacturing accuracy parameters of the commercial vehicle frame longitudinal beam and the sheet material thereof is mostly to place the frame longitudinal beam and the sheet material thereof on a common platform or a support frame, and then the manual measurement is carried out by using measuring tools such as a vernier caliper, a straight steel ruler and a tape measure, and the mode has the following defects:
1. the frame longitudinal beam and the plate thereof are not fixed, and displacement may be generated in the measuring process, so that the measuring accuracy is influenced;
2. the measurement is carried out by using a common measurement tool, the measurement tool has great influence on the measurement result, and the measurement error is increased;
3. manual measurement has great influence on the measurement result, measurement errors are increased, and the degree of automation and intelligence is low;
4. the flatness of a supporting surface, the bending of a plate and the like of a common platform or a supporting frame can influence a measurement result, so that the measurement is inaccurate;
5. accurate measurement coordinates cannot be established, the whole body of the frame longitudinal beam and the plate material thereof cannot be measured, and therefore the whole precision cannot be accurately evaluated.
Disclosure of Invention
In order to solve the technical problems, the invention provides the checking fixture for the frame longitudinal beam and the longitudinal beam plate, which is used for effectively positioning the frame longitudinal beam and the longitudinal beam plate, reducing the manual measurement error, improving the automation degree, establishing the measurement coordinate system and improving the measurement precision.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides a solebar and longeron sheet material are with examining utensil, includes mounting platform, detection base, locating pin, compressing tightly pole and activity briquetting, detection base detachably locates on the mounting platform, the both sides of detecting the upper end of base are equipped with the reference block, the locating pin inlays to be located detect on the base, just the upper end protrusion of locating pin detect the upper surface of base, compressing tightly the pole peg graft in the locating pin, activity briquetting detachably locates compressing tightly the upper end of pole.
Preferably, the bottom of compressing tightly the pole is equipped with the polygon and prevents changeing the piece, the bottom of detecting the base be equipped with prevent changeing the anti-rotation slot of piece looks adaptation.
Preferably, the detection base is provided with a mounting hole which penetrates through the anti-rotation groove and extends to the upper end of the anti-rotation groove, and the positioning pin is arranged in the mounting hole.
Preferably, the compression rod is sleeved with a compression spring, and the compression spring is located between the anti-rotation block and the positioning pin.
Preferably, the bottom on the detection base is provided with a fixing groove extending to two sides of the detection base, the mounting platform is provided with a T-shaped groove corresponding to the fixing groove, and the fixing groove is connected with the T-shaped groove through a first positioning mechanism.
Preferably, first positioning mechanism is including locating T type groove nut, T type navigation key and the connecting bolt in the T type groove, T type navigation key includes looks vertically horizontal portion and vertical portion, horizontal portion sliding connection in the fixed slot, vertical portion butt T type groove nut, connecting bolt connects T type groove nut reaches T type navigation key.
Preferably, the both sides of detecting the lower extreme of base are equipped with the mounting panel, correspond on the mounting panel T type groove is equipped with the joint mouth, T type groove with be connected with the bolt between the joint mouth.
Preferably, the inner side surfaces of the two reference blocks are parallel to each other and perpendicular to the upper surface of the detection base.
Preferably, the movable pressing block comprises two vertical rods arranged in parallel, the upper ends of the two vertical rods are connected with a cross rod, and the lower ends of the two vertical rods are abutted against the detection base.
Preferably, the middle part of the cross rod is provided with a fixing hole, the upper part of the pressing rod is provided with a thread, and the upper part of the pressing rod penetrates through the fixing hole to be connected with a nut.
Compared with the prior art, the checking fixture for the frame longitudinal beam and the longitudinal beam plate has the beneficial effects that: when the detection tool provided by the invention is used for detection, a frame longitudinal beam or longitudinal beam plate to be detected is placed on the detection base, a reference hole of the frame longitudinal beam or longitudinal beam plate is inserted into the positioning pin to be used as a reference original point, meanwhile, the inner side surface of the reference block is used as a reference surface, a three-dimensional coordinate measuring instrument is used for measurement, then, the frame longitudinal beam or longitudinal beam plate is pressed tightly by using the movable pressing block, the frame longitudinal beam or the frame longitudinal beam plate can be effectively positioned, meanwhile, the three-dimensional coordinate measuring instrument is used for measurement, the manual measurement error can be reduced, the automation degree is improved, the measurement coordinate system is established, and the measurement precision is improved. The invention has simple operation, simple structure, good use effect and easy popularization and use.
Drawings
Fig. 1 is an exploded view of the checking fixture for the frame longitudinal beam and the longitudinal beam plate material.
Fig. 2 is a top view of the checking fixture for the frame longitudinal beam and the longitudinal beam plate material.
Fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2.
Fig. 4 is a schematic cross-sectional view of B-B in fig. 2.
Fig. 5 is a schematic cross-sectional view of C-C in fig. 2.
FIG. 6 is an application schematic diagram of the checking fixture for the frame longitudinal beam and the longitudinal beam plate material.
Wherein: 1-an installation platform, 11-a T-shaped groove, 2-a detection base, 21-a reference block, 22-a fixing groove, 23-an installation plate, 24-a clamping interface, 3-a positioning pin, 4-a pressing rod, 5-a movable pressing block, 6-a compression spring, 7-a T-shaped groove nut, 8-a T-shaped positioning key, 9-a connecting bolt, an a-a fixing block, a b-a bolt, 100-a detection tool and 200-a frame longitudinal beam.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the checking fixture 100 for a frame longitudinal beam and a longitudinal beam plate material according to the preferred embodiment of the present invention includes a mounting platform 1, a detection base 2, a positioning pin 3, a pressing rod 4, and a movable pressing block 5, wherein the positioning pin 3 is preferably a tapered pin, and a small end thereof is a free end, so as to facilitate insertion of a reference hole of the frame longitudinal beam 200 or the longitudinal beam plate material. The detection base 2 is detachably arranged on the mounting platform 1, the two sides of the upper end of the detection base 2 are provided with reference blocks 21, the positioning pin 3 is embedded on the detection base 2, the upper end of the positioning pin 3 protrudes out of the upper surface of the detection base 2, the pressing rod 4 is inserted into the positioning pin 3, and the movable pressing block 5 is detachably arranged at the upper end of the pressing rod 4.
When the detection tool 100 provided by the invention is used for detection, only the frame longitudinal beam or longitudinal beam plate to be detected is placed on the detection base 2, the reference hole of the frame longitudinal beam or longitudinal beam plate is inserted into the positioning pin 3 to serve as a reference origin, meanwhile, the inner side surface of the reference block 21 serves as a reference surface, a three-dimensional coordinate measuring instrument is used for measurement, then, the frame longitudinal beam or longitudinal beam plate is pressed tightly by the movable pressing block 5, the frame longitudinal beam or the plate thereof can be effectively positioned, meanwhile, the three-dimensional coordinate measuring instrument is used for measurement, the manual measurement error can be reduced, the automation degree is improved, a measurement coordinate system is established, and the measurement precision is improved. The invention has simple operation, simple structure, good use effect and easy popularization and use.
In this embodiment, the bottom of the compression rod 4 is provided with a polygonal anti-rotation block, preferably a quadrilateral, the bottom of the detection base 2 is provided with an anti-rotation groove matched with the anti-rotation block, and the anti-rotation block is arranged in the anti-rotation groove during installation, so that the compression rod 4 can be prevented from rotating.
In this embodiment, the detection base 2 is provided with a mounting hole penetrating through the anti-rotation groove and extending to the upper end thereof, and the positioning pin 3 is disposed in the mounting hole. Meanwhile, a compression spring 6 is sleeved on the compression rod 4, and the compression spring 6 is located between the anti-rotation block and the positioning pins 3. Through setting up compression spring 6 under compression spring 6's effort, locating pin 3 upwards pushes up to make its cone and the benchmark pore wall contact of shaping longeron or longeron sheet material, thereby realize effective location.
In this embodiment, the detection base 2 is detachably disposed on the mounting platform 1, so that the number of the inspection tools 100 can be increased or decreased according to the length of the actually detected frame longitudinal beam or longitudinal beam plate, and the detection tools need to be detachably connected. Specifically, the bottom on the detection base 2 is equipped with the fixed slot 22 that extends to its both sides, correspond on the mounting platform 1 the fixed slot 22 is equipped with T type groove 11, be connected through a positioning mechanism between fixed slot 22 and the T type groove 11. First positioning mechanism is including locating T type groove nut 7, T type navigation key 8 and connecting bolt 9 in T type groove 11, T type navigation key 8 includes looks vertically horizontal portion and vertical portion, horizontal portion slip in fixed slot 22, vertical portion butt T type groove nut 7, connecting bolt 9 is connected T type groove nut 7 reaches T type navigation key 8, the good back of connection detect base 2 edge T type groove 11's length direction can also remove, for guaranteeing complete fixation, the both sides of the lower extreme of detection base 2 are equipped with mounting panel 23, correspond on the mounting panel 23T type groove 11 is equipped with joint mouth 24, T type groove 11 with be connected with bolt b between the joint mouth 24. The upper surface of mounting panel corresponds joint interface 24 can set up fixed block a, the bolt passes respectively T type groove 11 joint interface 24 reaches fixed block a connecting bolt 9. When in connection, the connecting bolt 9 only needs to be screwed down by a nut.
In this embodiment, the inner side surfaces of the two reference blocks 21 are parallel to each other and perpendicular to the upper surface of the detection base 2, and serve as Y-direction measurement references. Preferably, the inner side surface of the reference block 21 is parallel to the T-shaped groove 11.
In this embodiment, the movable pressing block 5 includes two vertical rods arranged in parallel, two the upper ends of the vertical rods are connected with a cross rod, and two the lower ends of the vertical rods are abutted against the detection base 2. The middle part of horizontal pole is equipped with the fixed orifices, the upper portion that compresses tightly pole 4 is equipped with the screw thread, just the upper portion that compresses tightly pole 4 passes fixed orifices coupling nut, directly screw up during the connection the nut can. Because the lower ends of the two vertical rods are abutted against the detection base 2, the transverse rods can be elastically deformed when the nuts are screwed down, and therefore the frame longitudinal beam or longitudinal beam plate to be detected is effectively compressed.
Taking a frame-formed longitudinal beam of a commercial vehicle as an example, a three-coordinate measuring instrument is used for measuring manufacturing precision parameters such as hole edge distance, hole distance and hole position degree on the ventral surface of the longitudinal beam 200. Wherein, all be equipped with the benchmark hole on this solebar ventral surface. As shown in the attached figure 6:
fixing a first group of checking tools 100 on the mounting platform 1, and establishing a measurement coordinate system by using a three-coordinate measuring instrument with the position of the positioning pin 3 as a reference origin and the inner side surface of the reference block 21 of the detection base 2 as a reference surface;
according to the length of the frame longitudinal beam 200 to be detected, a plurality of groups of detection tools 100 are added and fixed on the mounting platform 1 according to the distance between reference holes, so that the inner side surface of the reference block 21 of each group of detection tools 100 and the inner side surface of the reference block 21 of the first group of detection tools 100 meet certain flatness requirements, and the distance between every two groups of detection tools 100 is not more than 2 meters;
taking out the movable pressing block 5, placing the frame longitudinal beam 200 on the checking tools 100, and sequentially penetrating the reference holes into the pressing rod 4 and the positioning pin 3 of each group of checking tools 100, wherein the conical part of the positioning pin 3 is effectively contacted with the reference hole arm of the forming longitudinal beam under the action of the compression spring 6;
penetrating the movable pressing block 5 into the pressing rod 4, screwing a nut, and pressing the movable pressing block 5 against the frame longitudinal beam 200 by screwing the nut so that the ventral surface of the longitudinal beam is tightly attached to the upper surface of the detection base 2;
measuring various manufacturing precision parameters of the forming longitudinal beam 200 by using a three-coordinate measuring instrument;
after the measurement is finished, the nut is unscrewed, the movable pressing block 5 is taken out, and the frame longitudinal beam 200 can be lifted out.
The manner of detecting the longitudinal beam panel is the same as that of detecting the frame longitudinal beam 200, and the description thereof is omitted.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a solebar and longeron sheet material are with examining utensil which characterized in that: the device comprises an installation platform, a detection base, a positioning pin, a pressing rod and a movable pressing block, wherein the detection base is detachably arranged on the installation platform, reference blocks are arranged on two sides of the upper end of the detection base, the positioning pin is embedded on the detection base, the upper end of the positioning pin protrudes out of the upper surface of the detection base, the pressing rod is inserted into the positioning pin, and the movable pressing block is detachably arranged at the upper end of the pressing rod;
the bottom on the detection base is provided with a fixing groove extending to two sides of the detection base, the mounting platform is provided with a T-shaped groove corresponding to the fixing groove, and the fixing groove is connected with the T-shaped groove through a first positioning mechanism.
2. The checking fixture for the frame longitudinal beam and the longitudinal beam plate as claimed in claim 1, wherein: the bottom of compressing tightly the pole is equipped with the polygon and prevents changeing the piece, the bottom of detecting the base be equipped with prevent changeing the anti-rotating groove of piece looks adaptation.
3. The checking fixture for the frame longitudinal beam and the longitudinal beam plate as claimed in claim 2, wherein: the detection base is provided with a mounting hole which penetrates through the anti-rotation groove and extends to the upper end of the anti-rotation groove, and the positioning pin is arranged in the mounting hole.
4. The checking fixture for frame rails and rail plates as claimed in claim 3, wherein: the compression rod is sleeved with a compression spring, and the compression spring is located between the anti-rotation block and the positioning pins.
5. The inspection device for the frame longitudinal beam and the longitudinal beam plate material as claimed in claim 1, wherein: first positioning mechanism is including locating T type groove nut, T type navigation key and the connecting bolt in the T type groove, T type navigation key includes looks vertically horizontal portion and vertical portion, horizontal portion slip in the fixed slot, vertical portion butt T type groove nut, connecting bolt connects T type groove nut reaches T type navigation key.
6. The checking fixture for the frame longitudinal beam and the longitudinal beam plate as claimed in claim 1, wherein: the both sides of detecting the lower extreme of base are equipped with the mounting panel, correspond on the mounting panel T type groove is equipped with the joint mouth, T type groove with be connected with the bolt between the joint mouth.
7. The inspection device for the frame longitudinal beam and the longitudinal beam plate material as claimed in claim 1, wherein: the inner side surfaces of the two reference blocks are parallel and vertical to the upper surface of the detection base.
8. The checking fixture for the frame longitudinal beam and the longitudinal beam plate as claimed in claim 1, wherein: the movable pressing block comprises two vertical rods arranged in parallel, the upper ends of the two vertical rods are connected with a cross rod, and the lower ends of the two vertical rods are abutted to the detection base.
9. The inspection device for frame rails and rail panels according to claim 8, wherein: the middle part of the cross rod is provided with a fixing hole, the upper part of the pressing rod is provided with threads, and the upper part of the pressing rod penetrates through the fixing hole to be connected with a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110306904.7A CN113124726B (en) | 2021-03-23 | 2021-03-23 | Solebar and longeron sheet material are with examining utensil |
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| CN202110306904.7A CN113124726B (en) | 2021-03-23 | 2021-03-23 | Solebar and longeron sheet material are with examining utensil |
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| CN113124726A CN113124726A (en) | 2021-07-16 |
| CN113124726B true CN113124726B (en) | 2022-07-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804147B (en) * | 2021-08-19 | 2024-05-03 | 东风柳州汽车有限公司 | Automatic straightness detection device for automobile longitudinal beam plate |
| CN113804136A (en) * | 2021-08-23 | 2021-12-17 | 东风柳州汽车有限公司 | Workpiece checking fixture platform based on NC dot matrix and flexible automatic measuring system |
| CN114923389B (en) * | 2022-05-30 | 2023-07-25 | 东风柳州汽车有限公司 | A examine utensil for detecting vapour car beam assembly |
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