CN210108186U - Detection device for detecting position precision of small end inclined plane of connecting rod - Google Patents

Abstract

The utility model discloses a detection apparatus for be used for detecting connecting rod tip inclined plane position accuracy, including have the detection platform that detects the mesa, be used for being detected the main aspects location of connecting rod and compress tightly detect the quick locating component of main aspects on the mesa, be used for inserting connecting rod tip mounting hole formation level by the high auxiliary measurement spare of plane of being surveyed, be provided with the measuring seat of gauge and be used for the calibration by the standard block of the height of plane of being surveyed. The utility model discloses a detection device for detecting connecting rod tip inclined plane position accuracy adorns high auxiliary measurement spare behind the tip of connecting rod, with the height of the measured plane of high auxiliary spare as checking the size instead to with the standard block calibration checking height size instead, easy operation can realize the short-term test on connecting rod tip inclined plane, has improved detection efficiency, reduces the measurement personnel operation degree of difficulty, can prevent that the defective products from flowing.

Description

Detection device for detecting the position accuracy of the small end of the connecting rod

technical field

The utility model relates to a detection tool for automobile parts, in particular to a detection device for detecting the positional accuracy of the inclined plane of the small end of a connecting rod.

Background technique

In automobile engines, the small ends of some connecting rods are machined with inclined planes. After the processing is completed, the processing dimensions of the inclined planes need to be inspected to prevent the products with excessive dimensions from entering the next process and affecting the quality of the finished products. However, since the detected position is an inclined plane, conventional inspection tools cannot be used for detection. At present, when detecting these inclined planes, it needs to be sent to the three-coordinate room for detection. The three-coordinate detection operation is complicated and time-consuming, resulting in workpieces sent to the three-coordinate room for detection. The inspection time is long, which seriously affects the production efficiency. In order to reduce the adverse effect of the inspection three-coordinate room on the production efficiency, the sampling inspection method is currently adopted, resulting in low inspection frequency and abnormal slope dimensions of some workpieces. It was found that the substandard products were easy to flow out.

SUMMARY OF THE INVENTION

The main purpose of the utility model is to provide a detection device for detecting the position accuracy of the small end slope of the connecting rod, so as to realize the rapid detection of the small end slope of the connecting rod, improve the detection efficiency, reduce the difficulty of the inspection personnel, and prevent the outflow of defective products.

For realizing the above-mentioned purpose and other relevant purposes, the technical scheme of the present utility model is as follows:

A detection device for detecting the positional accuracy of the inclined plane of the small end of a connecting rod, comprising:

a detection table, which has a detection table, which is placed on the detection table when the detected connecting rod is detected, and the small end slope of the detected connecting rod faces away from the direction of the detection table during detection;

A big-end quick positioning assembly, which is used for positioning and pressing the big end of the connecting rod to be tested on the test table;

Auxiliary height measuring piece, the height auxiliary measuring piece is provided with a mounting slope for fitting to the small end slope of the connecting rod to be tested and a mounting slope for keeping the level after the mounting slope is fitted on the small end slope of the connecting rod to be tested. the plane to be measured, the plane to be measured faces upward, and the installation slope is downwardly protruded with a positioning portion for fitting into the installation hole of the small end of the connecting rod;

The measuring seat is provided with a measuring table, and the measuring table is a dial indicator or a dial indicator. When measuring, the measuring table is located above the measured plane, and the measuring head of the measuring table is against the Measuring the height conversion measurement value of the measured plane on the measured plane;

and a standard block, the standard block is set independently, a reference height plane is set on the standard block, and the standard block is used to be placed on the detection table and make the reference height plane abut on the measuring head, to calibrate the height of the measured plane.

Optionally, the big-end quick positioning assembly includes:

A lateral positioning structure is formed with a lateral limiting space for limiting the lateral position of the rail to be tested, and the lateral positioning structure is arranged on the detection table.

A quick presser, which is used to press the big end of the connecting rod to be tested on the test table;

and a presser mounting seat, the quick presser is arranged on the presser mounting seat, and the presser mounting seat is provided on the detection table, so that the indenter of the quick presser is pressed On the upper end face of the big end of the connecting rod to be tested.

Optionally, the lateral positioning structure includes at least two positioning blocks, each of the positioning blocks is provided with a limiting surface for fitting with a side surface of the big end of the connecting rod to be tested, and the lateral positioning space is formed. between the limiting surfaces of each of the positioning blocks.

Optionally, the number of the positioning blocks is two, and the two positioning blocks are arranged symmetrically.

Optionally, the quick presser is detachably provided on the presser mounting seat, and the presser mounting seat is detachably provided on the testing table.

Optionally, the auxiliary height measuring member includes a base body and a detachable inner core provided on the base body, the positioning portion is set on the inner core, and the installation slope and the measured plane are set on the inner core. on the base.

Optionally, the base body is provided with a groove, one end of the inner core is fitted into the groove, and the other end forms the positioning portion.

Optionally, the base body and the inner core are detachably connected by first bolts.

Optionally, the measuring seat includes:

a seat body, which is arranged on the detection table surface of the detection table;

and a cantilever member, which is arranged on the seat body and forms a cantilever portion, and the measuring meter is mounted on the cantilever portion.

Optionally, the cantilever member is a long plate, the cantilever member and the base are connected by second bolts, the number of the second bolts is at least two, and the two second bolts are The cantilever member is arranged in the direction of the upper side.

The detection device of the utility model is used for detecting the position accuracy of the inclined plane of the small end of the connecting rod. The height dimension of the block calibration and inspection is simple, and the operation is simple, which can realize the rapid inspection of the slope of the small end of the connecting rod, improve the inspection efficiency, reduce the difficulty of inspection personnel, and prevent the outflow of defective products.

Description of drawings

Figure 1 shows a schematic diagram of the structure of the connecting rod;

2 shows a schematic structural diagram of the detection device of the present invention during detection;

Fig. 3 shows the top view of Fig. 2;

Figure 4 shows the use state diagram for standard block calibration;

Description of reference numerals in the examples:

Big end A, small end B, small end bevel C, small end mounting hole D, testing table 1, height auxiliary measuring piece 3, measuring seat 4, standard block 5, measuring table 6, testing table 11, positioning block 21, quick The compactor 22, the compactor mounting seat 23, the base body 31, the inner core 32, the first bolt 33, the mounting slope 311, the measured plane 312, the positioning part 322, the seat body 41, the cantilever part 42, the second bolt 43, Reference height plane 51 , probe 61 .

Detailed ways

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other instances, some technical features known in the art are not described in order to avoid confusion with the present invention.

It should be understood that the present invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the same reference numerals refer to the same components throughout.

1 , 2 , 3 , and 4 , this embodiment discloses a detection device for detecting the positional accuracy of the small end slope of a connecting rod, including a detection table 1 , a large end quick positioning assembly, and an auxiliary height measuring piece 3. Measuring seat 4 and standard block 5.

The detection table 1 has a detection table 11 , which is placed on the detection table 11 during detection by the detection link, and the small end slope C of the detected link faces away from the direction of the detection table 11 during detection.

Wherein, the big end quick positioning assembly is used for positioning and pressing the big end A of the connecting rod to be detected on the detection table 11 .

The height auxiliary measuring member 3 is provided with a mounting slope 311 for fitting on the small end slope C of the connecting rod to be tested, and a mounting slope 311 for keeping the level after the mounting slope 311 is fitted on the small end slope C of the connecting rod to be tested. The measured plane 312, the measured plane 312 faces upward, and the installation slope 311 is protruded downward with a positioning portion 322 for fitting into the installation hole D of the small end of the connecting rod;

The measuring base 4 is provided with a measuring table 6, and the measuring table 6 is a dial indicator or a dial indicator. During measurement, the measuring table 6 is located above the measured plane 312, and the measuring head 61 of the measuring table 6 touches the measured surface. Measuring the height conversion measurement value of the measured plane 312 on the plane 312;

and a standard block 5, the standard block 5 is set independently, a reference height plane 51 is set on the standard block 5, and the standard block 5 is used to be placed on the detection table 11 and make the reference of the standard block 5 The height plane 51 abuts on the measuring head 61 to calibrate the height of the measured plane 312 . The height of the reference height plane 51 of the standard block 5 is equal to the design height value Ho of the measured plane 312 when the installation slope 311 of the auxiliary height measuring member 3 is attached to the standard small end slope C (design slope with zero tolerance).

The detection steps of using the detection device of this embodiment to detect the position accuracy of the small end of the connecting rod include:

Place the standard block 5 on the detection table 11, make the measuring head 61 abut on the reference height plane 51, and read the current reading H1 of the measurement table 6;

Remove the standard block 5, place the connecting rod on the detection table 11, make the small end slope C face away from the detection table 11, insert the positioning part 322 of the height auxiliary measuring piece 3 into the small end mounting hole D, and rotate the height auxiliary measuring piece 3. Make the installation slope 311 of the auxiliary height measuring member 3 close to the small end slope C;

Translate the position of the connecting rod, so that the position of the big end A of the connecting rod and the position of the big end quick positioning assembly are quickly positioned, the measured plane 312 of the auxiliary height measuring piece is located below the measuring head 61, and the measuring head 61 is against the measured plane 312 On, read the current reading H2 of the measuring table 6;

The absolute height value of the height of the above-mentioned measured plane 312 is defined as H _S , then H _S =H _o +H ₂ -H ₁ , calculate the height deviation ΔH of the small end slope C, ΔH=H _S -H _o =H ₂ -H ₁ .

When the detection device of this embodiment is used to detect the positional accuracy of the small end slope C of the connecting rod, the height H _S of the measured plane 312 is used as the inspection dimension, and the deviation of the small end slope C in the height direction can be quickly measured, that is, The position accuracy of the small-end inclined plane C can be quickly detected, the operation is simple, the detection efficiency is improved, the work difficulty of the inspection personnel is reduced, and the outflow of defective products can be prevented.

In some embodiments, with reference to FIG. 1 , FIG. 2 , and FIG. 3 , the big-end quick positioning assembly includes:

The lateral positioning structure is formed with a lateral limiting space for limiting the lateral position of the rail to be tested, and the lateral positioning structure is arranged on the detection table 11 .

A quick presser 22, which is used to press the big end A of the connecting rod to be tested on the test table 11;

And the presser mounting seat 23, the quick presser 22 is provided on the presser mounting seat 23, and the presser mounting seat 23 is provided on the detection table 11, so that the quick press The indenter 22 presses the upper end face of the big end A of the connecting rod to be tested.

Among them, the quick press device 22 adopts the existing quick press device, which usually includes an indenter and a handle.

When testing, put the big end A of the connecting rod directly into the lateral limit space to achieve lateral fast positioning, and then press down the handle of the quick press 22, so that the indenter of the quick press 22 presses on the connecting rod. On the end face of the big end A, the rapid positioning of the entire connecting rod on the detection table 11 is realized.

In some embodiments, referring to FIG. 3 , the lateral positioning structure includes at least two positioning blocks 21 , and each of the positioning blocks 21 is provided with a limiter for fitting with a side surface of the big end A of the connecting rod to be tested. The lateral positioning space is formed between the limiting surfaces of the positioning blocks 21 .

In some embodiments, referring to FIG. 3 , the number of the positioning blocks 21 is two, and the two positioning blocks 21 are arranged symmetrically. In the actual implementation process, multiple positioning blocks 21 may also be provided.

In the implementation process, referring to FIG. 3 , the positioning block 21 can be detachably installed on the detection table 11 on the detection table 1 through bolts, or can be directly integrally provided on the detection table 11 .

In some embodiments, referring to FIG. 2 and FIG. 3 , the quick presser 22 is detachably provided on the presser mount 23 , and the presser mount 23 is detachably provided on the presser mount 23 . on the test station 1. The quick presser 22 and the presser mounting seat 23 can be detachably connected by bolts, and the presser mounting seat 23 and the testing table 1 can also be detachably connected by bolts. When the model of the connecting rod to be detected is changed, the presser mounting seat 23 can be replaced, so that the height of the quick presser 22 can be changed to realize the pressing of the big end A of the connecting rod of different models.

In some embodiments, referring to FIG. 2 , the height auxiliary measuring member 3 includes a base body 31 and a detachable inner core 32 disposed on the base body 31 , and the positioning portion 322 is disposed on the inner core 32 , The installation slope and the measured plane 312 are arranged on the base body 31 .

In some embodiments, referring to FIG. 2 , the base body 31 is provided with a groove, one end of the inner core 32 is fitted into the groove, and the other end forms the positioning portion 322 .

In some embodiments, referring to FIG. 2 , the base body 31 and the inner core 32 are detachably connected by first bolts 33 . When the model of the connecting rod to be detected is changed, the inner core 32 can be replaced to realize the detection of the small end slope C of the connecting rod of different models.

In some embodiments, referring to FIG. 2 and FIG. 4 , the measurement base 4 includes:

a seat body 41, which is arranged on the detection table 11 of the detection table 1;

and a cantilever member 42, which is arranged on the seat body 41 and forms a cantilever portion, and the measuring meter 6 is mounted on the cantilever portion.

In some embodiments, referring to FIG. 2 , the cantilever member 42 is a long plate, the cantilever member 42 and the base 41 are connected by second bolts 43 , and the number of the second bolts 43 is at least two and two of the second bolts 43 are arranged along the upper edge direction of the cantilever member 42 . The cantilever member 42 consumes less material, and the bolt arrangement is beneficial to make the long plate-shaped cantilever member 42 more reliably installed on the base body 41 .

In the description of the present invention, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may include the direct contact between the first and second features, or may include the first and second features. The two features are not in direct contact but through another feature between them.

In describing the present invention, the singular forms "a", "an" and "the/the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the terms "compose" and/or "include", when used in this specification, identify the presence of stated features, integers, steps, operations, components and/or parts, but do not exclude one or more other The presence or addition of features, integers, steps, operations, components, parts and/or groups.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (10)

1. A detection device for detecting the position accuracy of a small end slope of a connecting rod is characterized by comprising:

the detection table is provided with a detection table top, the detection table top is arranged on the detection table top when the detection connecting rod is detected, and the small end inclined plane of the detection connecting rod is back to the direction of the detection table top when the detection connecting rod is detected;

the large end quick positioning assembly is used for positioning and pressing the large end of the detected connecting rod on the detection table top;

the height auxiliary measuring piece is provided with an installation inclined plane which is attached to the small end inclined plane of the tested connecting rod and a tested plane which is used for keeping horizontal after the installation inclined plane is attached to the small end inclined plane of the tested connecting rod, the tested plane faces upwards, and a positioning part which is used for being inserted into the connecting rod small end installation hole in a matched mode is arranged on the installation inclined plane in a downward protruding mode;

the measuring seat is provided with a measuring meter which is a dial indicator or a dial indicator, the measuring meter is positioned above a measured plane during measurement, and a measuring head of the measuring meter abuts against the measured plane to measure a height conversion measuring value of the measured plane;

and the standard block is independently arranged, a reference height plane is arranged on the standard block, and the standard block is used for being placed on the detection table board and enabling the reference height plane to abut against the measuring head so as to calibrate the height of the measured plane.

2. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 1, wherein: the quick locating component of main aspects includes:

the lateral positioning structure is provided with a lateral limiting space for limiting the lateral position of the detected railing and is arranged on the detection table top;

the quick compressor is used for compressing the large end of the detected connecting rod on the detection table top;

and the rapid compactor is arranged on the compactor mounting seat, and the compactor mounting seat is arranged on the detection table board, so that a pressure head of the rapid compactor is pressed on the upper end face of the large end of the tested connecting rod.

3. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 2, wherein: the lateral positioning structure comprises at least two positioning blocks, each positioning block is provided with a limiting surface which is used for being attached to one side surface of the large end of the tested connecting rod, and a lateral positioning space is formed between the limiting surfaces of the positioning blocks.

4. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 3, wherein: the number of the positioning blocks is two, and the two positioning blocks are symmetrically arranged.

5. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 2, wherein: the rapid compactor is detachably arranged on the compactor mounting seat, and the compactor mounting seat is detachably arranged on the detection table.

6. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 1, wherein: the height auxiliary measuring piece comprises a base body and an inner core which is detachably arranged on the base body, the positioning part is arranged on the inner core, and the installation inclined plane and the measured plane are arranged on the base body.

7. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 6, wherein: the base body is provided with a groove, one end of the inner core is inserted into the groove in a matching mode, and the other end of the inner core forms the positioning portion.

8. The detection device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 6 or 7, wherein: the base body and the inner core are detachably connected through a first bolt.

9. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 1, wherein: the measuring stand includes:

the base body is arranged on the detection table surface of the detection table;

and the cantilever part is arranged on the base body and forms a cantilever part, and the measuring meter is arranged on the cantilever part.

10. The detecting device for detecting the positional accuracy of the slope of the small end of the connecting rod according to claim 9, wherein: the cantilever part is a long lath, the cantilever part is connected with the base body through second bolts, the number of the second bolts is at least two, and the two second bolts are arranged along the upper edge direction of the cantilever part.

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