CN215865154U

CN215865154U - Quick detection device of external diameter

Info

Publication number: CN215865154U
Application number: CN202121599482.9U
Authority: CN
Inventors: 刘渭; 金兄珍
Original assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Current assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-02-18
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a rapid outer diameter detection device. According to the utility model, the measured workpiece is positioned by the positioning ports of the three measuring blocks, the deformation between the right half part and the left half part of the measuring blocks is utilized, and the deformation is detected by the sensor, so that the outer diameters of the three shaft necks of the tripod or the tripod can be detected, the detection speed is high, the measurement is accurate and convenient, the operation personnel can easily get the hands, and the measurement difference of the operation methods of different operation personnel can be effectively avoided.

Description

Quick detection device of external diameter

Technical Field

The utility model relates to the technical field of detection equipment, in particular to a rapid outer diameter detection device.

Background

The tripod universal joint is the most commonly used axial sliding constant velocity universal joint and is widely applied to front and rear driving shafts of automobiles. The tripod is a basic component of the tripod universal joint, the outer diameter of the journal of the tripod is an important assembling reliability index, and the existing measuring method of the outer diameter usually adopts a micrometer to measure. The outside diameter of the tripod assembly is also typically measured using a micrometer after assembly. During mass production and mass detection, the measuring method has slow measuring speed, and the difference of the operating methods of workers and the proficiency influence the measuring data, so the measuring method is not favorable for detecting mass products.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the background technology, and provides a rapid outer diameter detection device aiming at the characteristics of product structures of tripod pins and tripod frames, so as to solve the problems of low measurement speed in batch production and measurement errors caused by operation method differences.

The technical purpose of the utility model is realized as follows:

a rapid outer diameter detection device comprises a base, a lower base body, a shaft core and a measurement assembly; the lower base body is a regular triangular prism, the lower end of the lower base body is vertically fixed on the base, the upper end of the lower base body is fixedly connected with the shaft core, and each side vertical surface of the regular triangular prism is provided with a slide rail parallel to the bottom edge of the regular triangular prism; measuring unit's quantity is the same with the side elevation quantity of lower base member, every measuring unit is by the measuring block, spout and sensor are constituteed, the measuring block comprises about two, the back of the left side half is passed through the spout cooperation on the slide rail that corresponds, separate one section distance by two upper and lower expansion joints between the left side half and the right side half, and even as an organic whole through middle branch portion, the expansion joint top system of upside has the locating hole that holds the quilt survey position of work piece, the expansion joint bottom system of downside has the detection mouth, the lower extreme of the left side half is being fixed the sensor, the output interface and the last electromechanical connection of sensor, the gauge head level of sensor stretches into in the detection mouth and aim at the right side half on detection mouth right side.

Preferably, the lower substrate is replaced by a quadrangular prism from a regular triangular prism.

Preferably, the shaft core is a stepped shaft or a flat pin.

Preferably, the sensor is a displacement sensor.

The utility model has the beneficial effects that: according to the utility model, the measured workpiece is positioned by the positioning ports of the three measuring blocks, the deformation between the right half part and the left half part of the measuring blocks is utilized, and the deformation is detected by the sensor, so that the outer diameters of the three shaft necks of the tripod or the tripod can be detected, the detection speed is high, the measurement is accurate and convenient, the operation personnel can easily get the hands, and the measurement difference of the operation methods of different operation personnel can be effectively avoided.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is an enlarged view of the section F-F in fig. 1.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a schematic view of the working state of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.

As shown in fig. 1, 3 and 4, the rapid outer diameter detection device provided by the utility model comprises a base 1, a lower base 2, a shaft core 6 and a measurement assembly.

As shown in fig. 2, the lower substrate 2 is a regular triangular prism having a cross-section in the shape of a regular triangle. The lower end of the lower base body 2 is vertically fixed on the base 1, the upper end of the lower base body is fixedly connected with the shaft core 6, and each side vertical surface 2.1 of the triangular prism is respectively provided with a slide rail 8 parallel to the bottom edge of the triangular prism.

The number of the measuring components is the same as that of the side vertical surfaces 2.1 of the lower base body 2, and each measuring component consists of a measuring block 4, a sliding groove 7 and a sensor 3. The measuring block 4 comprises a left half part and a right half part, the back of the left half part 4B is matched on a corresponding sliding rail 8 through a sliding groove 7, and a section of distance is separated by an upper expansion joint 5 and a lower expansion joint 5 between the left half part 4B and the right half part 4A and is connected into a whole through a middle branch part 10. The two expansion joints 5 extend towards the middle of the measuring block 4 and expand to form a functional hole 5.1, a certain distance is kept between the two functional holes 5.1 to form the middle branch part 10, and the middle branch part 10 has certain elasticity due to the existence of the expansion joints 5 and the functional holes 5.1.

The top end of the expansion joint 5 on the upper side is provided with a positioning port 4C for accommodating the measured part of the workpiece 11, and the bottom of the expansion joint 5 on the lower side is provided with a detection port 4D. The sensor 3 is fixed at the lower end of the left half part 4B, an output interface 9 of the sensor 3 is electrically connected with an upper computer through a data line, and a measuring head of the sensor 3 horizontally extends into the detecting port and is aligned with the right half part 4A on the right side of the detecting port. Generally, the sensor 3 employs a displacement sensor.

The spindle is engaged with a workpiece 11 to be measured to position the workpiece 11. The shape of the mandrel may vary depending on the structure and shape of the workpiece 11. In general, the shaft core 6 is a stepped shaft, the axis of the stepped shaft is in the vertical direction, and the shaft core 6 can also be a flat pin which is vertically fixed on the top of the lower base body.

The lower base body 2 is in a regular triangular prism shape, is a product arrangement with a tripod or a tripod structure, can simultaneously measure the outer diameters of three shaft necks of the product, and the shaft core 6 can also be in a quadrangular shape, the cross section of the shaft core is rectangular or square, and four measuring blocks are arranged on the side surface of the shaft core, so that the shaft core can be suitable for detecting the outer diameter of a cross shaft with four shaft necks.

The working principle of the utility model is described below by taking the measurement of the outer diameter of the tripod or tripod ball as an example:

1. adjusting the position of each measuring block 4 through a slide rail 8 to prepare a rapid outer diameter detection device;

2. preparing a calibration piece, namely a workpiece detected by a tripod or a tripod, and recording data of verification detection for calibration;

3. installing a spline hole of a tripod rest or a tripod pin for calibration on a shaft core of the rapid outer diameter detection device, installing a shaft neck of the tripod rest or the tripod pin into a positioning port 4C, adjusting the indicating value of a displacement sensor, and calibrating to be consistent with the detection data for verifying the calibration piece;

4. after calibration of the calibration piece, the tripod or the tripod for calibration is taken out and put into a tripod or a tripod workpiece to be measured, as shown in fig. 5, a spline hole of the workpiece 11 to be measured is arranged on a shaft core 6 of the rapid outer diameter detection device, a shaft neck 11.1 of the workpiece to be measured is arranged in a positioning hole 4C, and measurement data information obtained by the displacement sensor is sent to an upper computer (not visible in the figure) through an output interface 9 and is displayed on a display of the upper computer.

5. And taking out the measured workpiece after the measurement is finished.

The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a quick detection device of external diameter which characterized in that: comprises a base (1), a lower base body (2), a shaft core (6) and a measuring component; the lower base body (2) is a regular triangular prism, the lower end of the lower base body is vertically fixed on the base (1), the upper end of the lower base body is fixedly connected with the shaft core (6), and each side vertical surface (2.1) of the regular triangular prism is respectively provided with a slide rail (8) parallel to the bottom edge of the regular triangular prism; the quantity of measuring unit is the same with side elevation (2.1) quantity of lower base member (2), every measuring unit is by measuring block (4), spout (7) and sensor (3) are constituteed, measuring block (4) are by controlling two and half one group are constituteed, the back of the half one on the left side (4B) passes through spout (7) cooperation on corresponding slide rail (8), separate one section distance by two upper and lower expansion joints (5) between half one on the left side (4B) and the right half (4A), and be even as an organic whole through middle branch portion (10), expansion joint (5) top system on upside has location mouth (4C) that hold the measured position of work piece (11), expansion joint (5) bottom system of downside has detection mouth (4D), the lower extreme of half one on the left side (4B) is fixed sensor (3), output interface (9) and the host computer electricity of sensor (3) are connected, the gauge head level of sensor (3) is stretched into in detection mouth (4D) and to the right side half one on detection mouth (4D) right side And (4A).

2. The rapid outer diameter detection device as claimed in claim 1, wherein: the lower base body (2) is replaced by a quadrangular prism from a regular triangular prism.

3. The rapid outer diameter detection device as claimed in claim 1, wherein: the shaft core (6) is a stepped shaft or a flat pin.

4. A rapid outer diameter detection device as claimed in claim 1, 2 or 3, wherein: the sensor (3) is a displacement sensor.