CN217005580U - Special detection tool for detecting frame cross beam - Google Patents
Special detection tool for detecting frame cross beam Download PDFInfo
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- CN217005580U CN217005580U CN202220545075.8U CN202220545075U CN217005580U CN 217005580 U CN217005580 U CN 217005580U CN 202220545075 U CN202220545075 U CN 202220545075U CN 217005580 U CN217005580 U CN 217005580U
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- cross beam
- shaped cross
- connecting plate
- checking fixture
- detecting
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Abstract
The utility model relates to a vehicle frame checking fixture, in particular to a special checking fixture for detecting a vehicle frame cross beam, which comprises a U-shaped cross beam, wherein a plurality of positioning holes are formed in four corners and the bottom surface of the U-shaped cross beam, and a plurality of lightening holes are formed in the bottom surface; trapezoidal connecting plates and baffle connecting plates are symmetrically arranged at four corners of the U-shaped cross beam respectively, and baffles are arranged on the side surfaces of the baffle connecting plates; and a transmission shaft support is arranged on one side of the U-shaped cross beam. The utility model can improve the detection efficiency and accuracy.
Description
Technical Field
The utility model relates to a vehicle frame detection tool, in particular to a special detection tool for detecting a vehicle frame cross beam.
Background
Current frame crossbeam spare, the structure is that main part and four connecting plate rivets, has more dimensional requirement and position degree requirement on the product, detects comparatively loaded down with trivial details. Due to the technical characteristics of the stamping part, certain errors exist when the reference surface is a non-processing surface, and the profile has a certain degree of springback phenomenon, so that certain measurement errors exist when the stamping part is detected by adopting a conventional measurement method or three-coordinate measurement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a special checking fixture for detecting a frame cross beam, which is used for detecting a cross beam piece. The detection efficiency and accuracy are improved. The specific technical scheme is as follows:
a special utensil of examining for frame cross member detects: the U-shaped beam is provided with a plurality of positioning holes at four corners and on the bottom surface, and a plurality of lightening holes are arranged on the bottom surface; trapezoidal connecting plates and baffle connecting plates are symmetrically arranged at four corners of the U-shaped cross beam respectively, and baffles are arranged on the side surfaces of the baffle connecting plates; and a transmission shaft support is arranged on one side of the U-shaped cross beam.
Further, the trapezoidal connecting plate and the baffle connecting plate are riveted to the U-shaped cross beam.
Furthermore, the side face of the trapezoidal connecting plate is linear, and the baffle connecting plate face is arc-shaped.
Furthermore, a plurality of positioning holes are formed in the trapezoidal connecting plate, the baffle connecting plate and the baffle, and the position degree is phi 1 mm.
Further, the width of the U-shaped cross beam is 170.5mm, and the length of the U-shaped cross beam is 741mm, 791mm or 891 mm.
When the checking fixture is used, a workpiece is placed on the checking fixture after riveting the assembly, the reference surfaces of the workpiece are attached to the reference blocks of the checking fixture, and the main and auxiliary positioning holes are aligned with the positions of the positioning holes and the pins of the checking fixture. The datum plane of the workpiece is clamped, after the locating hole is fixed, the profile of the workpiece is detected by a three-gap detection block of a go-no-go gauge matched with a detection tool, the hole position of the workpiece is detected by a detection pin, the width and the length of the workpiece are detected by the go-no-go gauge, and the hole position of the riveting hole on a connecting plate on a riveting hole clamping plate detection beam is detected by a riveting hole clamping plate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side-view and rear-view of the present invention;
FIG. 3 is a schematic view of a U-shaped cross beam according to the present invention;
fig. 4 is a schematic diagram of the assembly and use structure of the utility model.
Reference numerals:
1-U-shaped cross beam, 11-positioning holes, 12-lightening holes, 2-trapezoidal connecting plates, 3-baffle connecting plates, 31-baffles, 4-transmission shaft supports, 21-main positioning holes, 22-auxiliary positioning holes, 23-detection pins, 24-surface clearance detection blocks, 25-width go-no-go gauge, 26-length go-no-go gauge and 27-riveting hole clamping plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1-3, a special checking fixture for detecting a frame cross beam comprises a U-shaped cross beam 1, wherein a plurality of positioning holes 11 are formed in four corners and a bottom surface of the U-shaped cross beam 1, and a plurality of lightening holes 12 are formed in the bottom surface; trapezoidal connecting plates 2 and baffle connecting plates 3 are symmetrically arranged at four corners of the U-shaped cross beam 1 respectively, and baffles 31 are arranged on the side surfaces of the baffle connecting plates 3; and a transmission shaft bracket 4 is arranged on one side of the U-shaped beam 1. The trapezoidal connecting plate 2 and the baffle connecting plate 3 are riveted to the U-shaped cross beam 1. The side surface of the trapezoidal connecting plate 2 is linear, and the side surface of the baffle connecting plate 3 is arc-shaped. The trapezoidal connecting plate 2, the baffle connecting plate 3 and the baffle 31 are all provided with a plurality of positioning holes, and the position degree is phi 1 mm. The width of the U-shaped cross beam 1 is 170.5mm, and the length of the U-shaped cross beam is 741mm, 791mm or 891 mm.
During the use, as shown in FIG. 4, put the part on this utensil of examining, main locating surface leans on 4 connecting plates of examining the utensil on being the benchmark piece, and the position of connecting block is the same with the A1~ A4 of product drawing demarcation. Aligning a main positioning hole 21 of a product with a corresponding hole on the checking fixture, and inserting a main positioning pin which is cylindrical in section and is used for being in small clearance fit with the hole of the checking fixture; the other section is conical and is used for accurately centering the main positioning hole, and the two sections are concentric. Aligning the auxiliary positioning hole 22 of the product with a corresponding hole on the checking fixture, inserting an auxiliary positioning pin, wherein the inserted pin is in a cylindrical shape and is used for being in clearance fit with the hole of the checking fixture, and one edge of the inserted pin is cut off for preventing rotation; the other section is conical and is used for accurately centering the main positioning hole 21, and the other section is also cut off from two sides to form a diamond shape so as to avoid over positioning; the two sections are concentric. After the workpiece is accurately positioned, the quick clamp is pressed down to clamp the workpiece. After the positioning and clamping, the workpiece can be detected. The theoretical clearance between the surface clearance detecting block 24 and the workpiece surface is 5mm, the clearance is checked by a clearance go-no-go gauge (positioned on the underframe and not shown in the figure) with the size of 5 +/-1 mm, the passing-no-go gauge can be qualified as the surface, and if a specific numerical value of the surface error is required to be detected, the clearance can be detected by the clearance gauge matching surface clearance detecting block 24. The hole position degree of the workpiece is checked by using the detection pin 23, the detection pin 23 can be inserted into the hole of the workpiece to be qualified, if a specific numerical value is to be measured, the marking end of the detection pin can be used for rotationally marking on the workpiece, and the eccentric degree of the marked circle and the hole of the workpiece is observed.
Three length gears on the checking fixture are adjustable and used for detecting products with three different lengths. During adjustment, the spring pin of the inspection body is moved to a corresponding gear of the pin hole and is clamped, and then inspection can be carried out.
The width go-no-go gauge 25 is used for detecting the width of the workpiece independently so as to enable the pass-no-go gauge to be qualified. The length go-no-go gauge 26 is used for detecting the length of the workpiece independently so as to enable the pass-no-go gauge to be qualified. The riveting hole clamping plate 27 is used for independently detecting hole positions on the connecting plate on the cross beam, and pins on the clamping plate can be completely sleeved to be qualified in detection.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. The utility model provides a utensil is examined in special use for frame cross member detects which characterized in that: the structure comprises a U-shaped cross beam (1), wherein a plurality of positioning holes (11) are formed in four corners and the bottom surface of the U-shaped cross beam (1), and a plurality of lightening holes (12) are formed in the bottom surface; trapezoidal connecting plates (2) and baffle connecting plates (3) are symmetrically arranged at four corners of the U-shaped beam (1), and baffles (31) are arranged on the side surfaces of the baffle connecting plates (3); and a transmission shaft support (4) is arranged on one side of the U-shaped cross beam (1).
2. The special checking fixture for detecting the cross beam of the vehicle frame as claimed in claim 1, characterized in that: the trapezoid connecting plate (2) and the baffle connecting plate (3) are riveted to the U-shaped cross beam (1).
3. The special checking fixture for detecting the frame cross beam as claimed in claim 1, wherein the special checking fixture comprises: the side surface of the trapezoidal connecting plate (2) is linear, and the side surface of the baffle connecting plate (3) is arc-shaped.
4. The special checking fixture for detecting the cross beam of the vehicle frame as claimed in claim 1, characterized in that: the trapezoidal connecting plate (2), the baffle connecting plate (3) and the baffle (31) are all provided with a plurality of positioning holes, and the position degree is phi 1 mm.
5. The special checking fixture for detecting the cross beam of the vehicle frame as claimed in claim 1, characterized in that: the width of the U-shaped cross beam (1) is 170.5mm, and the length of the U-shaped cross beam is 741mm, 791mm or 891 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545075.8U CN217005580U (en) | 2022-03-14 | 2022-03-14 | Special detection tool for detecting frame cross beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545075.8U CN217005580U (en) | 2022-03-14 | 2022-03-14 | Special detection tool for detecting frame cross beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217005580U true CN217005580U (en) | 2022-07-19 |
Family
ID=82369456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220545075.8U Active CN217005580U (en) | 2022-03-14 | 2022-03-14 | Special detection tool for detecting frame cross beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217005580U (en) |
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2022
- 2022-03-14 CN CN202220545075.8U patent/CN217005580U/en active Active
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