CN218211234U - Crankshaft two-dimensional code position degree checking fixture - Google Patents
Crankshaft two-dimensional code position degree checking fixture Download PDFInfo
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- CN218211234U CN218211234U CN202222288297.9U CN202222288297U CN218211234U CN 218211234 U CN218211234 U CN 218211234U CN 202222288297 U CN202222288297 U CN 202222288297U CN 218211234 U CN218211234 U CN 218211234U
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- positioning pin
- detection frame
- dimensional code
- crankshaft
- pin support
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Abstract
The utility model discloses a crankshaft two-dimensional code position checking fixture, which comprises a checking frame (1), a positioning pin bracket (2) and a positioning pin (3); the overall shape of the detection frame (1) is L-shaped, and the detection frame (1) is provided with a square hole (101), an arc groove (102) and a threaded hole I (103); the overall shape of the positioning pin support (2) is a cuboid, a through hole (201) is formed in the upper portion of the positioning pin support (2), and a counter bore (202) is formed in the lower portion of the positioning pin support; the positioning pin (3) is cylindrical in overall shape, a threaded hole II (301) is formed in the front end of the positioning pin, and a chamfer (302) is formed in the rear end of the positioning pin; the detection frame (1) and the positioning pin (3) are fixedly installed together with the positioning pin support (2) through screws (4) respectively. The utility model discloses an examine a simple structure, practicality strong, detection efficiency is high, and the check-out time of accomplishing a bent axle is less than 10s, can great reduction quality risk and artifical intensity of labour, is fit for using widely in big batch industrial production.
Description
Technical Field
The utility model belongs to the technical field of the automobile parts makes, concretely relates to utensil is examined to bent axle two-dimensional code position degree.
Background
The crankshaft is a workpiece with a long, thin and complex shape, is a long shaft rotating at high speed in an automobile engine, and mainly comprises a main journal, a connecting rod journal, an oil hole, an oil seal journal, a balance block and the like.
The crankshaft is a key component of an automobile engine, and in order to guarantee accurate tracing, two-dimensional codes are usually engraved on the side face of a balance block and contain required tracing information. In order to ensure that the two-dimensional code can be rapidly scanned, the position degree of the two-dimensional code is required, and at present, the position degree is required to be detected in the machining industry by an upper platform, and tools such as a support frame, a height gauge and a dial indicator are required. The detection mode needs to adjust the crankshaft sweeping positioning height, the detection needs more than 5 minutes, and the detection efficiency is low; the quality problem of the position deviation of the two-dimensional code is not easy to find in time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utensil is examined to bent axle two-dimensional code position degree to the not enough of prior art existence. The utility model discloses an examine a simple structure, practicality strong, detection efficiency is high, and the check-out time of accomplishing a bent axle is less than 10s, can great reduction quality risk and artifical intensity of labour, is fit for using widely in big batch industrial production.
In order to realize the purpose, the utility model adopts the following technical scheme:
a crankshaft two-dimensional code position degree gauge comprises a detection frame, a positioning pin support and a positioning pin; wherein: the overall shape of the detection frame is L-shaped, a vertical plate of the detection frame is provided with a square hole, the bottom of a transverse plate of the detection frame is provided with an arc groove, and the front end of the transverse plate of the detection frame is provided with a threaded hole I; the overall shape of the positioning pin support is a cuboid, a through hole corresponding to the threaded hole I is formed in the upper portion of the positioning pin support, and a counter bore is formed in the lower portion of the positioning pin support; the positioning pin is cylindrical in overall shape, a threaded hole II is formed in the front end of the positioning pin, and a chamfer is formed in the rear end of the positioning pin; the detection frame and the positioning pin are fixedly installed together with the positioning pin support through screws respectively.
The utility model discloses in, the locating pin support passes through screw fixed mounting and makes things convenient for dismouting adjustment position at the front end of test stand, and is same, and the locating pin passes through screw fixed mounting and on the locating pin support, and quick assembly disassembly when making things convenient for the locating pin wearing and tearing changes. One end of the positioning pin is provided with a chamfer, so that the positioning pin can be conveniently placed into the positioning hole of the detected crankshaft.
As the utility model discloses further preferred improvement explains, the diameter ratio of the circular arc groove of test rack bottom is detected the bent axle and is detected 0.02 ~ 0.05mm big with the diameter of the axle journal of test rack contact, guarantees not to interfere under the condition that does not influence the detection precision.
As the utility model discloses the further preferred improvement explains, the size of quad slit equals two-dimensional code size plus two-dimensional code position degree tolerance value. The central position of the square hole is the same as the central position required by the two-dimensional code theory.
As the utility model discloses further preferred improvement explains, the distance between the centre of the counter bore of locating pin support and the top of the circular arc groove of test rack equals the radius that is detected the bent axle journal to when guaranteeing that the locating pin is just on the locating hole of bent axle, the bent axle can be laminated to the circular arc groove.
The use method of the crankshaft two-dimensional code position degree gauge comprises the following steps:
rotating the detected crankshaft to enable a two-dimensional code on a crankshaft balance block to approach a horizontal position;
placing the detection frame on the journal of the detected crankshaft to enable the arc groove to be in contact with the journal;
horizontally placing the positioning pin into the positioning hole of the crankshaft to be detected, and enabling the detection frame to be in contact with the surface where the two-dimensional code is located;
and step four, observing the two-dimensional code, if the two-dimensional code completely falls into the square hole of the detection frame, determining that the position of the two-dimensional code is qualified, and if the two-dimensional code does not completely fall into the square hole of the detection frame, determining that the position of the two-dimensional code is unqualified.
Compared with the prior art, the utility model has the advantages that:
1. adopt the utility model discloses examine the utensil, can accomplish the detection of bent axle two-dimensional code position degree fast in 10s, reduced the time that the location height was looked for to the adjustment bent axle among the traditional platform detection method, improved the efficiency that the product detected.
2. Adopt the utility model discloses examine utensil, easy operation need not complicated training.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic front view of an embodiment of the present invention.
Fig. 3 is a schematic front view of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a detection frame according to an embodiment of the present invention.
Fig. 5 is a schematic front view of a positioning pin holder according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a positioning pin holder according to an embodiment of the present invention.
Fig. 7 is a schematic front view of a positioning pin according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a positioning pin according to an embodiment of the present invention.
Reference numerals: 1-detection frame, 101-square hole, 102-arc groove, 103-threaded hole I, 2-positioning pin support, 201-through hole, 202-counter bore, 3-positioning pin, 301-threaded hole II, 302-chamfer and 4-screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example (b):
as shown in FIGS. 1 and 2, the crankshaft two-dimensional code position degree detection tool comprises a detection frame 1, a positioning pin support 2 and a positioning pin 3.
As shown in fig. 3 and 4, the overall shape of the detection frame 1 is L-shaped, a vertical plate of the detection frame 1 is provided with a square hole 101, the bottom of a transverse plate of the detection frame 1 is provided with an arc groove 102, and the front end of the transverse plate of the detection frame 1 is provided with two threaded holes i 103.
As shown in fig. 5 and 6, the overall shape of the positioning pin holder 2 is a rectangular parallelepiped, two through holes 201 corresponding to the screw holes i 103 are formed in the upper portion of the positioning pin holder 2, and a counter bore 202 is formed in the lower portion of the positioning pin holder 2.
As shown in fig. 7 and 8, the positioning pin 3 has an overall cylindrical shape, a threaded hole ii 301 is formed at the front end, and a chamfer 302 is formed at the rear end.
As shown in fig. 1, the detection frame 1 and the positioning pin 3 are respectively fixed to the positioning pin holder 2 by screws 4. Namely: two screws 4 respectively penetrate through holes 201 of a positioning pin support 2 and are screwed into threaded holes I103 of a detection frame 1, so that the detection frame 1 and the positioning pin support 2 are fixedly installed together; and then, a screw 4 penetrates through the counter bore 202 of the positioning pin bracket 2 and is screwed into the threaded hole II 301 of the positioning pin 3, so that the positioning pin is fixedly arranged on the positioning pin bracket 2.
The embodiment further illustrates that the diameter of the arc groove at the bottom of the detection frame is 0.02-0.05 mm larger than the diameter of the journal, which is in contact with the detection frame, in the detected crankshaft, so as to ensure that the interference is avoided without affecting the detection precision.
This embodiment further illustrates that the size of the square hole is equal to the two-dimension code size plus the tolerance value of the two-dimension code position. The central position of the square hole is the same as the central position required by the two-dimensional code theory.
This embodiment further illustrates, the distance between the top of the circular arc groove of the center of the counter bore of locating pin support and test rack equals the radius of being detected the bent axle journal to when guaranteeing that the locating pin just is on the locating hole of bent axle, the bent axle can be laminated to the circular arc groove.
The use method of the crankshaft two-dimensional code position gauge in the embodiment comprises the following steps:
rotating the detected crankshaft to enable a two-dimensional code on a crankshaft balance block to approach a horizontal position;
placing the detection frame 1 on the journal of the detected crankshaft to enable the arc groove 102 to be in contact with the journal;
horizontally placing the positioning pin 3 into a positioning hole of the crankshaft to be detected, and enabling the detection frame 1 to be in contact with the surface where the two-dimensional code is located;
and step four, observing the two-dimension code, wherein if the two-dimension code completely falls into the square hole 101 of the detection frame 1, the position degree of the two-dimension code is qualified, and if the two-dimension code does not completely fall into the square hole 101 of the detection frame 1, the position degree of the two-dimension code is unqualified.
It should be understood that the above-described embodiments are merely examples for clarity of description of the invention and are not intended to limit the practice of the invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; this is not necessary, nor exhaustive, of all embodiments; and obvious changes and modifications can be made without departing from the scope of the present invention.
Claims (4)
1. A crankshaft two-dimensional code position degree gauge comprises a detection frame (1), a positioning pin support (2) and a positioning pin (3); the method is characterized in that: the overall shape of the detection frame (1) is L-shaped, a vertical plate of the detection frame (1) is provided with a square hole (101), the bottom of a transverse plate of the detection frame (1) is provided with an arc groove (102), and the front end of the transverse plate of the detection frame (1) is provided with a threaded hole I (103);
the overall shape of the positioning pin support (2) is a cuboid, a through hole (201) corresponding to the threaded hole I (103) is formed in the upper portion of the positioning pin support (2), and a counter bore (202) is formed in the lower portion of the positioning pin support (2);
the positioning pin (3) is cylindrical in overall shape, a threaded hole II (301) is formed in the front end of the positioning pin, and a chamfer (302) is formed in the rear end of the positioning pin;
the detection frame (1) and the positioning pin (3) are fixedly installed with the positioning pin support (2) through screws (4) respectively.
2. The crankshaft two-dimensional code position gauge according to claim 1, characterized in that: the diameter of the arc groove (102) at the bottom of the detection frame (1) is 0.02-0.05 mm larger than that of a journal in the detected crankshaft, which is in contact with the detection frame.
3. The crankshaft two-dimensional code position degree gauge according to claim 1, characterized in that: the size of quad slit (101) equals two-dimensional code size plus two-dimensional code position tolerance value.
4. The crankshaft two-dimensional code position degree gauge according to claim 1, characterized in that: the distance between the center of the counter bore (202) of the positioning pin support (2) and the top of the arc groove (102) of the detection frame (1) is equal to the radius of the journal of the crankshaft to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288297.9U CN218211234U (en) | 2022-08-30 | 2022-08-30 | Crankshaft two-dimensional code position degree checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288297.9U CN218211234U (en) | 2022-08-30 | 2022-08-30 | Crankshaft two-dimensional code position degree checking fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218211234U true CN218211234U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222288297.9U Active CN218211234U (en) | 2022-08-30 | 2022-08-30 | Crankshaft two-dimensional code position degree checking fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218211234U (en) |
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2022
- 2022-08-30 CN CN202222288297.9U patent/CN218211234U/en active Active
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