CN219914296U

CN219914296U - Quick detection device of semi-axis blank straightness accuracy

Info

Publication number: CN219914296U
Application number: CN202320728311.4U
Authority: CN
Inventors: 齐羿; 潘星屹; 刘晓艺
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-10-27
Anticipated expiration: 2033-03-31

Abstract

The utility model provides a quick detection device for the straightness of a half-shaft blank, which aims to solve the problems of low detection efficiency, poor accuracy and the like of the straightness of the half-shaft blank.

Description

Quick detection device of semi-axis blank straightness accuracy

Technical Field

The utility model relates to the technical field of shaft straightness detection, in particular to a quick detection device for the straightness of a half-shaft blank.

Background

After the bending deformation cold correction of the half-shaft blank caused in the heat treatment process, straightness detection is needed, so that the straightness value of each half-shaft blank is ensured to meet the process requirement, and the subsequent unqualified scrapping of machining such as spline milling and the like caused by the out-of-straightness is avoided.

The common method is to use 2032 type deflection detector, rely on the equipment left and right thimble to support in the centre bore in semi-axis both ends, along fixed slide rail adjustment magnetic seat position, confirm and detect the position after fixing, use the dial indicator to detect again, this detection device mainly has following problem: (1) The operation efficiency is low, each half shaft can detect 3-5 position parameters according to the process design requirement, only one point can be used for detecting one point, the reciprocating operation is performed, the display value of the dial indicator needs to be accurately read, and the production efficiency is low; (2) When the detection point is selected every time, because of personal errors, when the magnetic seat is moved to drive the dial indicator to adjust the position, the unified and consistent detection position cannot be ensured, and the accuracy of the detection result is affected.

Disclosure of Invention

In order to solve the problems of low efficiency, poor accuracy and the like of the straightness detection of the semi-axis blank, the utility model provides a quick straightness detection device for the semi-axis blank, which adopts the following technical scheme:

the utility model provides a quick detection device of semi-axis blank straightness accuracy, its characterized in that, including beat appearance, dead lever, multiunit detection portion and controller, detection portion comprises fixed plate, L template, altitude mixture control pole and ejector pin, L template passes through fixed plate and dead lever fixed connection, be provided with on the L template run through from top to bottom and be used for with altitude mixture control pole threaded connection's screw hole, sliding connection is inside altitude mixture control pole about the ejector pin, fixedly connected with reset spring between ejector pin lower extreme and the inside bottom of altitude mixture control pole, still be provided with pressure sensor between reset spring and the inside bottom of altitude mixture control pole, pressure sensor links to each other with controller signal input part, and controller signal output part still signal connection has the siren.

Preferably, a plurality of groups of threaded holes which are distributed corresponding to the positions of the fixing plates are formed in the fixing rods in the length direction, and the fixing plates are fixedly connected with the fixing rods through bolts.

Preferably, the alarm is an audible and visual alarm.

Preferably, a storage module is arranged in the controller, and a plurality of groups of audible and visual alarm information corresponding to the plurality of groups of detection parts are preset in the storage module.

The utility model has the beneficial effects that: the mode that the semi-axis blank is propped against the ejector rod to press the pressure sensor is adopted, the straightness of the semi-axis blank is rapidly detected and alarmed, and compared with the mode that the ejector rod or the dial indicator is observed by naked eyes, a detector can rapidly confirm whether the semi-axis blank is qualified or not and the unqualified position, and the detection efficiency and the detection accuracy are effectively improved.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model

FIG. 2 is a front view of the detecting unit

FIG. 3 is a left side view of the detecting section

The device comprises a 1-swinging instrument, a 2-semi-axle blank, a 3-fixed rod, a 4-detection part, a 5-fixed plate, a 6-L-shaped plate, a 7-height adjusting rod, an 8-ejector rod, a 9-reset spring, a 10-pressure sensor, an 11-controller and a 12-alarm.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be 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 disclosure to those skilled in the art.

In the description of the utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the view direction or positional relationships, merely to facilitate describing the utility model, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

The quick detection device for the straightness of the half-shaft blank shown in fig. 1-3 comprises a deflection instrument 1, a fixed rod 3 and a detection part 4, wherein the detection part 4 is fixedly connected to different positions of the fixed rod 3 in the length direction and is used for detecting the straightness of the half-shaft blank 2 at different positions.

Specifically, the detection portion 4 is composed of a fixing plate 5, an L-shaped plate 6, a height adjusting rod 7 and a push rod 8, wherein threaded holes are formed in the L-shaped plate 6 and vertically penetrate through the L-shaped plate, external threads are formed in the outer wall of the height adjusting rod 7, the height adjusting rod 7 is in threaded connection with the L-shaped plate 6, a through hole penetrating through the upper portion from the bottom is formed in the height adjusting rod 7, the push rod 8 is vertically and slidably connected to the inside of the through hole, the upper end of the push rod 8 extends out of a certain length above the height adjusting rod 7, and a reset spring 9 and a pressure sensor 10 are sequentially connected to the lower end of the push rod 8 and the bottom end of the through hole of the height adjusting rod 7 from top to bottom.

In addition, the device also comprises a controller 11, the pressure sensor 10 is connected with a signal input end of the controller 11, a signal output end of the controller 11 is connected with an alarm 12, a storage module is arranged in the controller 11, three groups of different audible and visual alarm information are arranged in the storage module and are used for corresponding to the three groups of alarms 12 with different positions, and therefore the unqualified position of the straightness of the half-shaft blank 2 is rapidly identified.

The working principle of the device is as follows:

the semi-axis blank 2 is fixed on the deflection instrument 1, the detection part 4 is fixed below the positions of the semi-axis blank 2 with different diameters, the height of the upward extension of the height adjusting rod 7 is adjusted, the upper end of the ejector rod 8 is in surface contact with the semi-axis blank 2, the semi-axis blank 2 is manually rotated, when the surface straightness of the semi-axis blank 2 is unqualified, the semi-axis blank 2 can tightly press the ejector rod 8 and the pressure sensor 10, and accordingly pressure information is transmitted to the controller 11, the controller 11 controls the alarm 12 to send out audible and visual alarms to remind workers that the straightness of the semi-axis blank 2 is unqualified, and in the embodiment, the controller 11 independently detects and records signals of three groups of pressure sensors 10, and the controller 11 sends out different audible and visual alarm signals preset inside a storage module of the controller 11 according to the signals of the pressure sensors 10 with different positions, so that an operator can quickly position which shaft section straightness of the semi-axis blank 2 is unqualified.

The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that modifications may be made without departing from the principles of the utility model, and such modifications are intended to be within the scope of the utility model.

Claims

1. The utility model provides a quick detection device of semi-axis blank straightness accuracy, its characterized in that, including beat appearance (1), dead lever (3), multiunit detection portion (4) and controller (11), detection portion (4) are by fixed plate (5), L template (6), altitude mixture control pole (7) and ejector pin (8) are constituteed, L template (6) are through fixed plate (5) and dead lever (3) fixed connection, are provided with on L template (6) to run through from top to bottom and are used for with altitude mixture control pole (7) threaded connection's screw hole, sliding connection is inside in altitude mixture control pole (7) from top to bottom in ejector pin (8), fixedly connected with reset spring (9) between ejector pin (8) lower extreme and altitude mixture control pole (7) inside bottom, still be provided with pressure sensor (10) between reset spring (9) and altitude mixture control pole (7) inside bottom, pressure sensor (10) link to each other with controller (11) signal input part, and controller (11) signal output part still signal connection has alarm (12).

2. The quick detection device for straightness of a half shaft blank according to claim 1, wherein a plurality of groups of threaded holes distributed corresponding to the positions of the fixing plates (5) are formed in the fixing rods (3) in the length direction, and the fixing plates (5) are fixedly connected with the fixing rods (3) through bolts.

3. The rapid detection device for straightness of half shaft blanks according to claim 1, wherein the alarm (12) is an audible and visual alarm.

4. The quick detection device for straightness of half shaft blanks according to claim 1, wherein a storage module is arranged in the controller (11), and a plurality of groups of alarm information corresponding to a plurality of groups of detection parts are preset in the storage module.