CN218211234U - A crankshaft two-dimensional code position degree inspection tool - Google Patents

Abstract

The utility model discloses a crankshaft two-dimensional code position inspection tool, which comprises a detection 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 The 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 bracket (2) is a cuboid, and a There is a through hole (201), and the lower part is provided with a counterbore (202); the overall shape of the positioning pin (3) is a cylinder, the front end is provided with a threaded hole II (301), and the rear end is provided with a chamfer (302); The detection frame (1) and the positioning pin (3) are respectively fixed and installed together with the positioning pin bracket (2) through screws (4). The inspection tool of the utility model has the advantages of simple structure, strong practicability, and high detection efficiency. It takes less than 10 seconds to complete the detection of a crankshaft, which can greatly reduce quality risks and labor intensity, and is suitable for popularization and use in mass industrial production.

Description

A crankshaft two-dimensional code position degree inspection tool

technical field

The utility model belongs to the technical field of auto parts manufacturing, in particular to a crankshaft two-dimensional code position degree inspection tool.

Background technique

The crankshaft is a slender and complex workpiece. It is a long shaft rotating at high speed in the car engine. It is mainly composed of main journal, connecting rod journal, oil hole, oil seal journal, balance weight and so on.

The crankshaft is a key component of an automobile engine. In order to ensure accurate traceability, a QR code is generally engraved on the side of the balance weight, containing the required traceability information. In order to ensure that the QR code can be quickly scanned, there are also requirements for its position. At present, the position is required in the machining industry, and the method of detection on the platform is usually used. Tools such as support frames, height gauges, and dial indicators are required. This kind of detection method needs to adjust the positioning height of the crankshaft scanning, and the detection takes more than 5 minutes, and the detection efficiency is low; it is not easy to find the quality problem of the deviation of the position of the two-dimensional code in time.

Utility model content

The purpose of the utility model is to provide a crankshaft two-dimension code position inspection tool for the deficiencies in the prior art. The inspection tool of the utility model has the advantages of simple structure, strong practicability, and high detection efficiency. It takes less than 10 seconds to complete the detection of a crankshaft, which can greatly reduce quality risks and labor intensity, and is suitable for popularization and use in mass industrial production.

In order to achieve the above object, the utility model adopts the following technical solutions:

A crankshaft two-dimensional code position inspection tool, including a detection frame, a positioning pin bracket and a positioning pin; wherein: the overall shape of the detection frame is L-shaped, and a square hole is provided on the vertical plate of the detection frame to detect The bottom of the horizontal plate of the frame is provided with an arc groove, and the front end of the horizontal plate of the detection frame is provided with a threaded hole I; A counterbore is provided at the lower part of the positioning pin bracket; the overall shape of the positioning pin is a cylinder, the front end is provided with threaded hole II, and the rear end is provided with chamfering; The pin brackets are fixedly mounted together.

In the utility model, the positioning pin bracket is fixedly installed on the front end of the detection frame by screws, which is convenient for disassembly and adjustment of position. Similarly, the positioning pin is fixedly installed on the positioning pin bracket by screws, which is convenient for quick disassembly and replacement when the positioning pin is worn. One end of the locating pin is chamfered to be conveniently put into the locating hole of the crankshaft to be tested.

As a further preferred improvement of the utility model, the diameter of the arc groove at the bottom of the detection frame is 0.02 to 0.05mm larger than the diameter of the journal in the crankshaft to be detected and in contact with the detection frame, so as to ensure that the detection accuracy will not be affected. put one's oar in.

As a further preferred improvement description of the present invention, the size of the square hole is equal to the size of the two-dimensional code plus the tolerance value of the position of the two-dimensional code. The central position of the square hole is the same as the central position required by the two-dimensional code theory.

As a further preferred improvement of the utility model, the distance between the center of the counterbore of the positioning pin bracket and the top of the arc groove of the detection frame is equal to the radius of the crankshaft journal to be detected, thereby ensuring that the positioning pin is just in the position of the crankshaft. When the hole is on, the arc groove can fit the crankshaft.

The above-mentioned method of using the crankshaft two-dimensional code position degree inspection tool includes the following steps:

Step 1, rotate the detected crankshaft so that the two-dimensional code on the crankshaft balance weight is close to the horizontal position;

Step 2, place the detection frame on the journal of the crankshaft to be tested, so that the arc groove is in contact with the journal;

Step 3, put the positioning pin horizontally into the positioning hole of the crankshaft to be detected, so that the detection frame is in contact with the surface where the two-dimensional code is located;

Step 4, observe the two-dimensional code, if the two-dimensional code all falls in the square hole of the detection frame, the position of the two-dimensional code is qualified; if the two-dimensional code does not fall completely in the square hole of the detection frame, the position of the two-dimensional code degree failed.

Compared with the prior art, the utility model has the advantages of:

1. With the utility model inspection tool, the detection of the position degree of the two-dimensional code of the crankshaft can be quickly completed within 10s, which reduces the time for adjusting the positioning height of the crankshaft in the traditional platform detection method, and improves the efficiency of product detection.

2. Adopting the inspection tool of the utility model, the operation is simple and no complicated training is required.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a schematic front view of an embodiment of the utility model.

Fig. 3 is a schematic front view of the detection rack in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a detection rack in an embodiment of the present invention.

Fig. 5 is a schematic front view of the positioning pin bracket in an embodiment of the present invention.

Fig. 6 is a schematic structural view of a positioning pin bracket in an embodiment of the present invention.

Fig. 7 is a schematic front view of a positioning pin in an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a positioning pin in an embodiment of the present invention.

Reference signs: 1-detection frame, 101-square hole, 102-arc groove, 103-thread hole I, 2-location pin bracket, 201-through hole, 202-counterbore, 3-location pin, 301-thread Hole Ⅱ, 302-chamfer, 4-screw.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

Example:

As shown in FIG. 1 and FIG. 2 , a crankshaft two-dimensional code position inspection tool includes a detection frame 1 , a positioning pin bracket 2 and a positioning pin 3 .

As shown in Figures 3 and 4, the overall shape of the test frame 1 is L-shaped, and a square hole 101 is provided on the vertical plate of the test frame 1, and an arc groove 102 is provided at the bottom of the horizontal plate of the test frame 1. , The front end of the horizontal plate of the detection frame 1 is provided with two threaded holes I103.

As shown in Figure 5 and Figure 6, the overall shape of the positioning pin bracket 2 is a cuboid, and two through holes 201 corresponding to the threaded holes I103 are arranged on the upper part of the positioning pin bracket 2, and the lower part of the positioning pin bracket 2 A counterbore 202 is provided.

As shown in FIG. 7 and FIG. 8 , the overall shape of the positioning pin 3 is a cylinder, a threaded hole II 301 is provided at the front end, and a chamfer 302 is provided at the rear end.

As shown in FIG. 1 , the detection frame 1 and the positioning pin 3 are respectively fixed and installed together with the positioning pin bracket 2 through screws 4 . That is: first use two screws 4 to pass through the through holes 201 of the positioning pin bracket 2 respectively, and then screw them into the threaded hole I103 of the testing frame 1, so that the testing frame 1 and the positioning pin bracket 2 are fixedly installed together; The screw 4 passes through the counterbore 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 installed on the positioning pin bracket 2.

This embodiment further illustrates that the diameter of the arc groove at the bottom of the test frame is 0.02-0.05 mm larger than the diameter of the journal of the crankshaft to be tested that is in contact with the test frame, so as to ensure non-interference without affecting the detection accuracy.

This embodiment further illustrates that the size of the square hole is equal to the size of the two-dimensional code plus the tolerance value of the position of the two-dimensional code. 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 that the distance between the center of the counterbore of the locating pin bracket and the top of the arc groove of the detection frame is equal to the radius of the crankshaft journal to be detected, thereby ensuring that the locating pin is just on the locating hole of the crankshaft. , the arc groove can fit the crankshaft.

The method for using the crankshaft two-dimensional code position degree inspection tool of the above-mentioned embodiment includes the following steps:

Step 1, rotate the detected crankshaft so that the two-dimensional code on the crankshaft balance weight is close to the horizontal position;

Step 2, placing the detection frame 1 on the journal of the crankshaft to be tested, so that the arc groove 102 is in contact with the journal;

Step 3, put the positioning pin 3 horizontally into the positioning hole of the crankshaft to be detected, so that the detection frame 1 is in contact with the surface where the two-dimensional code is located;

Step 4, observe the two-dimensional code, if the two-dimensional code all falls inside the square hole 101 of the detection frame 1, the position of the two-dimensional code is qualified; if the two-dimensional code does not all fall inside the square hole 101 of the detection frame 1, then The position of the QR code is unqualified.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation of the utility model. For those of ordinary skill in the art, on the basis of the above description, other different forms of changes or changes can also be made; it is not necessary and impossible to exhaust all the implementation modes; and the obvious Changes or variations still fall within the protection scope of the present utility model.

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.

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