CN210892912U

CN210892912U - Measuring crankshaft front end conical surface axial position size's detection instrument

Info

Publication number: CN210892912U
Application number: CN201921260534.2U
Authority: CN
Inventors: 李鸿飞; 卢顺彬; 彭旺生
Original assignee: Guilin Fuda Alfin Large Crankshaft Co ltd; Guilin Fuda Crankshaft Co ltd
Current assignee: Guilin Fuda Alfin Large Crankshaft Co ltd; Guilin Fuda Crankshaft Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-30
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a detection tool for measuring axial position size of a conical surface at the front end of a crankshaft, which mainly comprises a gauge (1), a taper sleeve (2) and a conical shaft (3); the gauge (1) is a sheet structure with a through end and a stop end; the taper sleeve (2) is a taper sleeve with an inner taper hole; the conical shaft (3) is a cone with an outer conical surface, and a handle is arranged on the large end surface of the cone; the outer conical surface of the conical shaft (3) is matched with the inner conical hole of the conical sleeve (2). The utility model has the advantages of simple and reasonable design, volume passing rule and taper sleeve use mutually supporting can judge accurately fast whether the conical surface axial position size of surveyed the work piece accords with the drawing requirement, and the measurement cost is low, and measurement accuracy is high, and operating method is simple and easy, and detection efficiency is high, is fit for mass production.

Description

Measuring crankshaft front end conical surface axial position size's detection instrument

Technical Field

The utility model relates to a bent axle processing detects instrument, concretely relates to measure bent axle front end conical surface axial position size's detection instrument belongs to bent axle and detects technical field.

Background

The front end belt pulley of the crankshaft is provided with a journal, and is designed into a taper structure according to the assembly requirement. The processing requirements of the part drawing on the taper generally include the taper size, the axial position size from the conical surface to the reference surface and the like.

At present, a relevant detection method is used for taper detection, and no convenient detection method is used for detecting the axial position size of the conical surface.

At present, the most common measurement method for detecting the axial position size of the conical surface of the crankshaft is to use an optical projector for detection. During detection, the crankshaft is placed on a projector, and the axial position size of the conical surface can be measured through the photoelectric principle. By adopting the projector detection method, although the axial position size value of the conical surface can be accurately measured, the workpiece needs to be off-line, the operation is complicated, the measurement efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of prior art, provide a measure the measuring tool of bent axle conical surface axial position size fast and accurately and detection method thereof.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a detection tool for measuring the axial position size of a conical surface at the front end of a crankshaft mainly comprises a gauge, a conical sleeve and a conical shaft; the gauge is a sheet structure with a through end and a stop end; the taper sleeve is a taper sleeve with an inner taper hole; the conical shaft is a cone with an outer conical surface, and a handle is arranged on the large end face of the cone; the outer conical surface of the conical shaft is matched with the inner conical hole of the conical sleeve.

The utility model discloses a supporting use tools, gauge and taper sleeve use through mutually supporting can judge whether the conical surface axial position size of being surveyed the work piece accords with the drawing requirement.

The utility model discloses explain further, the logical end and the dead end of gauge design according to the minimum and the maximum value of being surveyed work piece axial position dimensional tolerance.

The utility model discloses explain further, the interior awl of taper sleeve act on the diameter design according to the outer awl of the work piece that is surveyed, and the interior awl of taper sleeve is acted on the depth dimension of diameter place cross-section to the big terminal surface of taper sleeve and is confirmed through the awl axle calibration (the unable direct measurement of interior awl action diameter value of taper sleeve). The diameter of the large cone end surface of the conical shaft is the outer cone action diameter of the conical shaft and is designed according to the outer cone action diameter of a measured workpiece (the outer cone action diameter value of the conical shaft can be directly measured). When the taper shaft is used for calibrating the taper sleeve, the taper shaft is plugged into the taper sleeve without clearance and is not loosened, at the moment, the section where the action diameter of the taper sleeve is located is matched with the section where the action diameter of the taper shaft is located, namely, the action diameter of the taper sleeve is equal to the action diameter of the taper shaft, at the moment, the distance value from the section where the action diameter of the taper shaft is located to the large end face of the taper sleeve can be measured, and the distance value can be judged to meet the design requirement.

The utility model discloses the design has the taper sleeve to calibrate, and the design depth dimension of taper sleeve can calibrate through the taper shaft, confirms to accord with the design value requirement. The calibrated taper sleeve can be matched with the through end and the stop end of the gauge for use as a detection tool for measuring the axial position size of the conical surface of the crankshaft.

The detection tool for measuring the axial position size of the conical surface at the front end of the crankshaft is used for detection, and the detection tool comprises the following steps:

(1) adopting a taper shaft to calibrate a taper sleeve: and (3) plugging the conical shaft into the conical sleeve without clearance, measuring the depth value from the large end surface of the conical shaft to the end surface of the hole of the conical sleeve without loosening, and judging whether the depth value is within the design range. The step only needs to be checked regularly, and can be omitted when the method is used in a production field.

(2) The taper sleeve is plugged into the workpiece to be measured without clearance and loosening.

(3) Using the gauge to lead to end and detect the distance size of taper sleeve terminal surface to the measured work piece reference surface respectively, judging whether qualified by the measured size:

1) if the through end of the gauge can pass through and the stop end can not pass through, the measured size is judged to be qualified;

2) if the gauge through end does not pass through, judging that the measured position is too small in size and is not qualified;

3) if the stop end can pass through, the measured position is judged to be oversize and unqualified.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a gauge and taper sleeve use through mutually supporting and can judge accurately fast whether the conical surface axial position size of surveyed the work piece accords with the drawing requirement.

2. The utility model discloses structural design is simple reasonable, and measurement cost is low, and measurement accuracy is high, and operating method is simple and easy, and detection efficiency is high, is fit for mass production.

Drawings

FIG. 1 is a process diagram of the axial position dimension of the taper of a workpiece under test.

Fig. 2 is a schematic structural view when the utility model is used.

Fig. 3 is a schematic view of the structure of the taper sleeve in fig. 2.

Fig. 4 is a schematic view of a cone shaft configuration for use in calibrating the cone sleeve of fig. 3.

Fig. 5 is a schematic view of the configuration of fig. 4 when the taper sleeve is aligned with the taper axis of fig. 3.

Reference numerals: 1-gauge, 2-taper sleeve, 3-taper shaft and 4-workpiece to be measured.

Detailed Description

The present invention is further described with reference to the following drawings and examples, but the scope of the present invention is not limited thereto.

Example (b):

fig. 1 shows a process diagram of the axial position dimension of the cone surface, which is expressed by a front view. D1 is the cone action diameter required by the drawing of the workpiece, and L1 is the axial position size from the section of the cone action diameter D1 to the reference plane of the workpiece.

Fig. 2 shows a schematic structural diagram of an embodiment of the present invention in use, which is a detection tool for measuring axial position dimension of a crankshaft front end conical surface, and the detection tool comprises a gauge 1 and a taper sleeve 2. The gauge 1 is a sheet structure with a through end and a stop end; the open and closed ends are designed according to the dimension L3 in fig. 2, L3 being L1-L2, in terms of minimum and maximum values of dimensional tolerances. The taper sleeve 2 is a taper sleeve with an inner taper hole, and the structural schematic diagram of the taper sleeve 2 is shown in fig. 3. The gauge 1 and the taper sleeve 2 are matched with each other to judge whether the axial position size of the conical surface of the workpiece 4 to be measured meets the requirement of a drawing.

As shown in fig. 3, the structure of the taper sleeve 2 in fig. 2 is schematically shown, the taper sleeve 2 is a conical sleeve with an inner taper hole, and the inner taper working diameter D2 is designed according to the outer taper working diameter D1 of the workpiece; the cross-sectional to face depth L2 of the taper diameter D2 is designed by the designer and is not directly measurable and needs to be calibrated.

Fig. 4 shows a schematic structural view of a conical shaft 3, wherein the conical shaft 3 is used for calibrating the taper sleeve 2 in fig. 3; the conical shaft 3 is a cone with an outer conical surface, and a handle is designed on the large end face of the cone; the outer cone working diameter D3 of the illustrated cone shaft 3 is designed according to the workpiece outer cone working diameter D1: d3 ═ D1, the diameter value can be measured directly.

As shown in fig. 5, a schematic structural diagram of the calibration taper sleeve 2 of the taper shaft 3 is shown, during calibration, the taper shaft 3 is inserted into the taper sleeve without a gap, and at this time, the section where the action diameter D2 of the taper sleeve is located is identical to the section where the action diameter D3 of the taper shaft is located, that is, the action diameter D2 of the taper sleeve 2 is equal to the action diameter D3 of the taper shaft 3, that is, D2 is equal to D3, at this time, the distance value L2 from the section where the action diameter of the taper sleeve 2 is located to the end face thereof can be measured, and it can be determined that the distance value meets the design requirements.

The detection tool for measuring the axial position size of the conical surface at the front end of the crankshaft comprises the following steps:

(1) and (3) calibrating the taper sleeve by adopting a taper shaft, wherein the taper shaft is plugged into the taper sleeve without clearance and is not loosened, measuring the depth value from the large end surface of the taper shaft to the end surface of the orifice of the taper sleeve, and judging whether the depth value is within the design range. The step only needs to be periodically detected by the metering chamber, and can be omitted when the step is used in a production field.

(3) Using the gauge to respectively detect the distance size from the end face of the taper sleeve to the reference surface of the workpiece, and judging whether the measured size is qualified:

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a measure detection instrument of bent axle front end conical surface axial position size which characterized in that: consists of a gauge (1), a taper sleeve (2) and a taper shaft (3); the gauge (1) is a sheet structure with a through end and a stop end; the taper sleeve (2) is a taper sleeve with an inner taper hole; the conical shaft (3) is a cone with an outer conical surface, and a handle is arranged on the large end surface of the cone; the outer conical surface of the conical shaft (3) is matched with the inner conical hole of the conical sleeve (2).

2. The tool for detecting the axial position dimension of the front end conical surface of the crankshaft as claimed in claim 1, wherein: the through end and the stop end of the gauge (1) are designed according to the minimum value and the maximum value of the dimensional tolerance of the axial position of the workpiece to be measured.

3. The tool for detecting the axial position dimension of the front end conical surface of the crankshaft as claimed in claim 1, wherein: the inner cone action diameter of the taper sleeve (2) is designed according to the outer cone action diameter of a measured workpiece, and the depth from the section where the inner cone action diameter of the taper sleeve (2) is located to the large end face of the taper sleeve is determined through the calibration of the taper shaft (3).

4. The tool for detecting the axial position dimension of the front end conical surface of the crankshaft as claimed in claim 3, wherein: the diameter of the large end face of the cone shaft (3) is the outer cone action diameter of the cone shaft and is designed according to the outer cone action diameter of a measured workpiece.

5. The tool for detecting the axial position dimension of the front end conical surface of the crankshaft as claimed in claim 4, wherein: when the taper shaft (3) is used for calibrating the taper sleeve (2), the taper shaft is plugged into the taper sleeve without clearance and is not loosened, at the moment, the section where the action diameter of the taper sleeve is located is matched with the section where the action diameter of the taper shaft is located, namely, the action diameter of the taper sleeve is equal to the action diameter of the taper shaft, at the moment, the distance value from the section where the action diameter of the taper shaft is located to the large end face of the taper sleeve is measured, and the distance value can be judged to meet the design requirement.