CN110966906A

CN110966906A - Quick detection tool for detecting shaft size

Info

Publication number: CN110966906A
Application number: CN201911345365.7A
Authority: CN
Inventors: 段冰毅; 李永生
Original assignee: Hefei AAM Automotive Driveline and Chassis System Co Ltd
Current assignee: Hefei AAM Automotive Driveline and Chassis System Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-07

Abstract

The invention discloses a gauge for rapidly detecting the size of a shaft, which comprises a gauge body, wherein a detection area is arranged in the gauge body, the left side and the right side of the detection area are respectively provided with a limiting block and a detection rod mechanism, the detection area is also provided with a limiting pin for limiting a shaft to be detected, the limiting block and the limiting pin are fixed, the detection rod mechanism is used for detecting the size of the limited shaft to be detected, and a handle is arranged on the gauge body; the size of the workpiece is rapidly detected by the detection rod mechanism, and meanwhile, the calibration mechanism can be used for calibrating at any time so as to improve the detection precision.

Description

Quick detection tool for detecting shaft size

Technical Field

The invention relates to the technical field of detection, in particular to a detection tool for rapidly detecting the size of a shaft.

Background

The hypoid spiral bevel gear of the gleason is widely applied to main driving units of passenger vehicles, commercial vehicles and engineering machinery, and the quality level of the product directly influences the quality and the working performance of the mechanical equipment. The reliability of the final quality of such gears depends mainly on two aspects: firstly, the precision of the processing equipment and the clamp thereof ensures the reliability and stability of the precision and the size in the production process; secondly, the rationality of the design of gear parameters.

The influence of the jumping precision and the assembling precision of the pitch cone of the driving gear on the machining precision of the bearing neck before and after the driving gear is heated is large, and the jumping precision and the assembling precision of the pitch cone of the driving gear are specifically and mainly embodied in the following two aspects: 1. if the size of the hot front driving gear bearing is unqualified in the machining process, the main gear is directly positioned unreliably in the subsequent gear cutting machining process, and therefore the precision grade of the main gear after gear cutting is influenced. 2. The shaft matching area of the main gear needs to be subjected to hard turning after heat treatment to ensure the stability of the matching surface in the assembling process, if the shaft size of the matching area is unqualified, the bearing cannot be assembled or is subjected to clearance assembly in the assembling process, the main gear can be scrapped, and the NVH and the service life of the gear can be directly influenced by the shaft. Therefore, there is a need for efficient and rapid inspection and data collection during hot front and hot back sizing of a main tooth bearing during process machining.

Disclosure of Invention

In order to solve the problems, the invention provides a gauge for rapidly detecting the dimension of a shaft, which utilizes a detection rod mechanism to rapidly detect the dimension of a workpiece, and simultaneously utilizes a calibration mechanism to calibrate at any time so as to improve the detection precision.

In order to realize the technical scheme, the invention provides a gauge for rapidly detecting the size of a shaft, which comprises a gauge body, wherein a detection area is arranged in the gauge body, the left side and the right side of the detection area are respectively provided with a limiting block and a detection rod mechanism, a limiting pin for limiting a shaft to be detected is also arranged on the detection area, the limiting block and the limiting pin are fixed, the detection rod mechanism is used for detecting the size of the limited shaft to be detected, and a handle is arranged on the gauge body.

The further improvement lies in that: the digital display instrument is fixedly arranged on the gauge body through an instrument seat, one end of the measuring rod is connected with the hard alloy block, the other end of the measuring rod is connected with the digital display instrument, a measuring groove is formed in the gauge body and used for the measuring rod to stretch, a linear bearing and a spring are arranged in the measuring groove, the hard alloy block is in contact with a shaft to be detected, and the stretching amount of the hard alloy block is transmitted to the digital display instrument through the measuring rod so as to display measured data.

The further improvement lies in that: and a C-shaped meter cover for protection is arranged on the digital display meter.

The further improvement lies in that: the limiting block is mounted on the gauge body through screws.

The further improvement lies in that: the fixture is matched with a calibration mechanism, the calibration mechanism consists of a bottom plate, a base, check blocks and calibration columns, the check blocks for limiting the measuring rods are arranged around the bottom plate, the base for placing hard alloy blocks is arranged between the four check blocks, and the calibration columns for zero setting of the measuring rod mechanism are arranged in the base.

The invention has the beneficial effects that:

1. the calibration is quick, the operation is easy, an operator can quickly measure the workpiece, and meanwhile, quick calibration and zero resetting can be carried out on the calibration mechanism;

2. the abrasion is easy to replace, the calibration column can be quickly replaced, and the calibration column can be directly replaced and calibrated after the service life reaches the abrasion limit;

3. the precision is easy to guarantee, the calibration column with standard size is used for calibration at any time, and the precision requirement can be effectively guaranteed.

Drawings

FIG. 1 is a block diagram of the present invention.

Fig. 2 is a structural view of the detection lever mechanism of the present invention.

Fig. 3 is a two-view illustration of the alignment mechanism of the present invention.

Wherein: 1. a gauge body; 2. detecting a region; 3. a limiting block; 4. a detection lever mechanism; 5. a spacing pin; 6. a handle; 7. a measuring tank; 8. a C-shaped watch cover; 9. a screw; 10. a calibration mechanism; 11. a base plate; 12. a base; 13. a stopper; 14. calibrating the column; 411. a hard alloy block; 412. a measuring rod; 413. a spring; 414. a linear bearing; 415. a digital display meter; 416. a watch base.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

According to the

drawings

1, 2 and 3, the embodiment provides an inspection tool for rapidly inspecting the size of a shaft, the inspection tool comprises a gauge body 1, a detection area 2 is arranged in the gauge body 1, limit blocks 3 and detection rod mechanisms 4 are respectively arranged on the left side and the right side of the detection area 2, limit pins 5 for limiting the shaft to be inspected are further arranged on the detection area 2, the limit blocks 3 and the limit pins 5 are fixed, the detection rod mechanisms 4 are used for performing size inspection on the limited shaft to be inspected, and a handle 6 is arranged on the gauge body 1.

The detection rod mechanism 4 is composed of a telescopic hard alloy block 411, a measuring rod 412, a spring 413, a linear bearing 414 and a digital display meter 415, the digital display meter 415 is fixedly installed on the gauge body 1 through a meter seat 416, one end of the measuring rod 412 is connected with the hard alloy block 411, the other end of the measuring rod 412 is connected with the digital display meter 415, a measuring groove 7 is formed in the gauge body 1 and used for the measuring rod 412 to stretch, the linear bearing 414 and the spring 413 are arranged in the measuring groove 7, the hard alloy block 411 is in contact with a shaft to be detected, and the stretching amount of the hard alloy block is transmitted to the digital display meter through the measuring rod to display measured data. The digital display meter 415 is provided with a protective C-shaped meter cover 8. The stopper 3 is mounted on the gauge body 1 by a screw 9.

The fixture is matched with a calibration mechanism 10, the calibration mechanism 10 is composed of a bottom plate 11, a base 12, stop blocks 13 and calibration columns 14, the stop blocks 13 for limiting measuring rods are arranged on the periphery of the bottom plate 11, the base 12 for placing hard alloy blocks is arranged among the four stop blocks 13, and the calibration columns 14 for detecting zero setting of the rod mechanism are arranged in the base 12.

Before detection, the measuring rod 412 and the display meter 415 are firstly taken out and put on the base 12 of the calibration mechanism, and calibration and zero resetting are carried out on the base by the calibration column 14; after calibration, the measuring rod 412 is placed in the measuring groove 7, the digital display meter 415 is placed in the meter seat 416, meanwhile, a workpiece is placed in the detection area, the workpiece is limited by the limiting block 3 and the limiting pin 5, then the hard alloy block 411 is in contact with the workpiece, the expansion and contraction amount of the hard alloy block 411 is transmitted to the digital display meter 415 through the measuring rod 412, and measured data are displayed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an examine utensil of short-term test axle class size which characterized in that: including the ruler body (1) be provided with detection area (2) in the ruler body (1), the left and right sides in detection area (2) is provided with stopper (3) and detection lever mechanism (4) respectively, still be provided with on detection area (2) and prescribe a limit to wait to detect spacer pin (5) that the axle was used, stopper (3) and spacer pin (5) are immovable, by detection lever mechanism (4) come to wait to detect the axle after prescribing a limit and carry out size detection, be provided with handle (6) on the ruler body (1).

2. The inspection device for rapidly detecting shaft dimensions as claimed in claim 1, wherein: the detecting rod mechanism (4) is composed of a telescopic hard alloy block (411), a measuring rod (412), a spring (413), a linear bearing (414) and a digital display meter (415), the digital display meter (415) is fixedly installed on the gauge body (1) through a meter seat (416), one end of the measuring rod (412) is connected with the hard alloy block (411), the other end of the measuring rod is connected with the digital display meter (415), a measuring groove (7) is formed in the gauge body (1) and used for the measuring rod (412) to stretch, the linear bearing (414) and the spring (413) are arranged in the measuring groove (7), the hard alloy block (411) is in contact with a shaft to be detected, the stretching amount of the hard alloy block is transmitted to the digital display meter through the measuring rod, and measured data are displayed.

3. The inspection device for rapidly detecting shaft dimensions as claimed in claim 2, wherein: the digital display meter (415) is provided with a C-shaped meter cover (8) for protection.

4. The inspection device for rapidly detecting shaft dimensions as claimed in claim 1, wherein: the limiting block (3) is installed on the gauge body (1) through a screw (9).

5. The inspection device for rapidly detecting shaft dimensions as claimed in claim 2, wherein: the fixture is matched with a calibration mechanism (10), the calibration mechanism (10) is composed of a bottom plate (11), a base (12), stop blocks (13) and calibration columns (14), the stop blocks (13) for limiting the measuring rod are arranged on the periphery of the bottom plate (11), the base (12) for placing hard alloy blocks is arranged in the middle of the four stop blocks (13), and the calibration columns (14) for detecting zero setting of the rod mechanism are arranged in the base (12).