阅读说明：本技术 轴承外圈滚道直径尺寸测量装置及其使用方法 (Bearing outer ring raceway diameter size measuring device and using method thereof ) 是由 叶平 邹星波 唐兴 孙建伟 荣超 于 2020-03-15 设计创作，主要内容包括：本发明公开了轴承外圈滚道直径尺寸测量装置及方法,它包括壳体总成,壳体总成具有用于放置轴承外圈的检查台,检查台上开设有两个供固定探头安装的T型槽,检查台上还开设有供活动探头在内移动的轴向开口槽；安装于壳体总成侧面的导轨滑块模块,导轨滑块模块包括安装于检查台背面的门型导轨,位于门型导轨的门型区域内的夹紧块导轨,位于夹紧块导轨和门型导轨之间可滑动的梯形滑块,通过连接件安装于梯形滑块上底部侧面的顶块,安装于梯形滑块下底部且露出于轴向开口槽的活动探头,夹紧块导轨与门型导轨之间通过螺栓预紧。本发明的有益效果是导轨滑块模块提供触头直线方向上的运动轨迹,符合检测沟道尺寸的轨迹,消除大沟表弹簧片预紧的系统误差。(The invention discloses a device and a method for measuring the diameter size of a raceway of a bearing outer ring, and the device and the method comprise a shell assembly, wherein the shell assembly is provided with an inspection table for placing the bearing outer ring, two T-shaped grooves for installing fixed probes are formed in the inspection table, and an axial open slot for moving a movable probe in is also formed in the inspection table; install in the guide rail slider module of casing assembly side, guide rail slider module is including installing in the door type guide rail at the inspection desk back, is located the tight piece guide rail of clamp in the door type region of door type guide rail, is located the trapezoidal slider of slidable between the tight piece guide rail of clamp and the door type guide rail, installs the kicking block of bottom side on trapezoidal slider through the connecting piece, installs in the movable probe of bottom and exposing in the axial open slot under trapezoidal slider, presss from both sides between tight piece guide rail and the door type guide rail through bolt pretension. The invention has the advantages that the guide rail sliding block module provides a motion track of the contact in the linear direction, the track accords with the track of the size of a detection channel, and the system error of pre-tightening of the large channel surface spring piece is eliminated.)

1. Bearing inner race raceway diameter size measuring device, characterized by: the device comprises a shell assembly (1), wherein the shell assembly is provided with an inspection table (1-1) for placing a bearing outer ring, the inspection table is provided with two T-shaped grooves (1-3) for mounting fixed probes (1-2), and the inspection table is also provided with axial open grooves (1-5) for moving movable probes (1-4) inside; the guide rail and slider module (2) is arranged on the side face of the shell assembly, and comprises a door-shaped guide rail (2-1) arranged on the back face of the inspection table, a clamping block guide rail (2-2) positioned in a door-shaped area of the door-shaped guide rail, a trapezoidal slider (2-3) which can slide between the clamping block guide rail and the door-shaped guide rail, a top block (2-5) arranged on the side face of the upper bottom of the trapezoidal slider through a connecting piece (2-4), and a movable probe which is arranged at the lower bottom of the trapezoidal slider and is exposed out of an axial open slot, wherein the clamping block guide rail and the door-shaped guide rail are pre; and the torsional spring meter (3) is arranged on the side surface of the shell assembly, and a contact of the torsional spring meter is vertically abutted against the top block.

2. The bearing outer race raceway diameter dimension measuring device of claim 1, characterized by: spherical open grooves are formed in at least one contact surface of the gate-shaped guide rail and the clamping block guide rail and the trapezoidal sliding block, and balls with partial surfaces contacting the trapezoidal sliding block are accommodated in the spherical open grooves.

3. The bearing outer race raceway diameter dimension measuring device of claim 2, characterized by: the spherical open grooves are distributed on the two side surfaces and the lower bottom surface of the trapezoidal sliding block.

4. The bearing outer race raceway diameter dimension measuring device of claim 1, characterized by: an end cover is arranged at one end, far away from the torsion spring meter, of the door-shaped guide rail (2-1), one end of the trapezoidal slider penetrates through the door-shaped guide rail and extends into the end cover, and a spring is arranged between the end of the trapezoidal slider of the extension part and the end cover.

5. The use method of the bearing outer ring raceway diameter dimension measuring device according to any one of claims 1 to 4, characterized by: it comprises the following steps: the bearing outer ring is placed on the inspection table, one fixed probe and the movable probe are located on the inner side of the raceway of the bearing outer ring, the other fixed probe is located on the outer side of the bearing outer ring, then the trapezoidal sliding block is pulled to move outwards to the shell assembly along the door-shaped guide rail, and the top block abuts against the contact of the torsion spring meter, so that the linear displacement of the trapezoidal sliding block is measured, and the size of the raceway of the bearing outer ring is measured.

Technical Field

The invention relates to the technical field of bearing inspection, in particular to a device for measuring the diameter size of a raceway of a bearing outer ring and a using method thereof.

Background

At present, the size meter (hereinafter, collectively called as a large groove meter) of the bearing outer ring raceway in the industry is high in manufacturing cost, a casting is difficult to process, and batch production is difficult; the spring piece pre-tightening mode has small elastic space, the general range is within 5mm, and the medium-large deep groove ball bearing with higher flange coefficient or the diameter of the steel ball exceeding 15mm is difficult to be universally tested; the traditional large ditch meter measuring module is only connected with the spring piece, and the measuring point measuring stroke of the traditional large ditch meter measuring module is equal to the bending stroke of the spring piece, but the contact track of the large ditch meter for detecting the diameter of the ditch is a straight line, and the elastic bending track of the spring piece is an arc, so that the system error of the large ditch meter cannot be avoided.

For example, chinese patent publication No. CN103063112A discloses a diameter measuring ruler for a raceway of an extra-large wind power bearing, which comprises a ruler rod, a fixed ruler frame, a movable ruler frame, a fixed measuring head, a sleeve, a movable rod, a movable measuring head, an installation frame, a leaning frame and a measuring meter. The fixed ruler frame and the movable ruler frame are respectively arranged at two ends of the ruler rod; the fixed measuring head is arranged on the outer end face of the fixed ruler frame; the sleeve is fixed in a radial through hole formed in the movable ruler frame; the movable rod is inserted in the sleeve through a spring arranged in the sleeve; the movable measuring head is connected to the outer end of the movable rod; the outer end of the mounting frame is connected with the inner end of the movable rod; the outer end of the leaning frame is connected to the inner end face of the movable ruler frame, and the inner end of the leaning frame is inserted into the middle of the mounting frame; the measuring meter is fixedly inserted in the through hole of the mounting frame in a mode that the measuring rod and the movable measuring head are coaxial, so that the end head of the side rod is abutted against the inner end face of the leaning frame. The above problems still remain.

Disclosure of Invention

The invention aims to solve the technical problems of the existing bearing inner ring raceway detector in integral casting, and provides a device for measuring the diameter size of a bearing outer ring raceway and a using method thereof.

The technical scheme of the invention is as follows: the bearing outer ring raceway diameter size measuring device comprises a shell assembly, wherein the shell assembly is provided with an inspection table for placing a bearing outer ring, two T-shaped grooves for mounting fixed probes are formed in the inspection table, and an axial open slot for allowing a movable probe to move in the inspection table is further formed in the inspection table; the guide rail sliding block module is arranged on the side face of the shell assembly and comprises a door-shaped guide rail arranged on the back face of the inspection table, a clamping block guide rail positioned in a door-shaped area of the door-shaped guide rail, a trapezoidal sliding block capable of sliding between the clamping block guide rail and the door-shaped guide rail, a top block arranged on the side face of the upper bottom of the trapezoidal sliding block through a connecting piece, a movable probe arranged on the lower bottom of the trapezoidal sliding block and exposed out of the axial open slot, and the clamping block guide rail and the door-shaped guide rail are pre-tightened through bolts; and the contact of the torsion spring meter is vertically abutted against the top block.

The improvement of the scheme is that at least one contact surface of the door-shaped guide rail and the clamping block guide rail and the trapezoidal sliding block is provided with a spherical open slot, and a part of surface of a ball contacted with the trapezoidal sliding block is accommodated in the spherical open slot.

In the scheme, the spherical open grooves are distributed on the two side surfaces and the lower bottom surface of the trapezoidal sliding block.

The improvement of the scheme is that one end of the door-shaped guide rail, which is far away from the torsion spring meter, is provided with an end cover, one end of the trapezoidal slider penetrates through the door-shaped guide rail and extends into the end cover, and a spring is arranged between the end part of the trapezoidal slider of the extension part and the end cover.

The use method of the bearing outer ring raceway diameter size measuring device comprises the following steps: the bearing outer ring is placed on the inspection table, one fixed probe and the movable probe are located on the inner side of the raceway of the bearing outer ring, the other fixed probe is located on the outer side of the bearing outer ring, then the trapezoidal sliding block is pulled to move outwards to the shell assembly along the door-shaped guide rail, and the top block abuts against the contact of the torsion spring meter, so that the linear displacement of the trapezoidal sliding block is measured, and the size of the raceway of the bearing outer ring is measured.

The invention has the advantages that the guide rail sliding block module provides a motion track of the contact in the linear direction, the track accords with the track of the size of a detection channel, and the system error of the pre-tightening of the traditional large channel surface spring piece is eliminated; the ball slides, the trapezoidal sliding block has high moving sensitivity, the clamping block guide rail is pre-tightened by a screw arranged on the door-shaped guide rail, and the sensitivity is adjustable; because the contact fixed with the trapezoidal sliding block moves along with the trapezoidal sliding block, the size of the bearing raceway is equal to the displacement of the contact and the trapezoidal sliding block.

Drawings

FIG. 1 is a schematic view of a bearing outer ring raceway diameter dimension measuring device of the present invention;

FIG. 2 is a schematic view of the housing assembly of FIG. 1;

FIG. 3 is a schematic view of the rail slider module of FIG. 1;

FIG. 4 is a schematic view of the inspection station and rail slide module assembly of FIG. 1;

FIG. 5 is a cross-sectional view of FIG. 1;

in the figure, the test table comprises a shell assembly 1, a test table 1-1, a fixed probe 1-3, a T-shaped groove 1-4, a movable probe 1-5, an axial open groove 2, a guide rail and slider module 2-1, a door-shaped guide rail 2-2, a clamping block guide rail 2-3, a trapezoidal slider 2-4, a connecting piece 2-5, a top block 3 and a torsion spring meter.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments based on the embodiments in the present invention, without any inventive work, will be apparent to those skilled in the art from the following description.

As shown in fig. 1-4, the diameter size measuring device of the raceway of the bearing outer ring comprises a housing assembly 1, wherein the housing assembly is provided with an inspection table 1-1 for placing the bearing outer ring, the inspection table is provided with two T-shaped grooves 1-3 for installing fixed probes 1-2, and the inspection table is further provided with axial open grooves 1-5 for moving movable probes 1-4; the guide rail sliding block module 2 is arranged on the side face of the shell assembly and comprises a door-shaped guide rail 2-1 arranged on the back face of the inspection table, a clamping block guide rail 2-2 positioned in a door-shaped area of the door-shaped guide rail, a trapezoid sliding block 2-3 positioned between the clamping block guide rail and the door-shaped guide rail and capable of sliding, a top block 2-5 arranged on the side face of the upper bottom of the trapezoid sliding block through a connecting piece 2-4, and a movable probe arranged at the lower bottom of the trapezoid sliding block and exposed out of an axial open slot, wherein the clamping block guide rail and the door-shaped guide rail are pre-tightened through; and a torsion spring meter 3 arranged on the side surface of the shell assembly, wherein a contact of the torsion spring meter is vertically abutted against the top block.

Specifically, the housing assembly may be a rectangular inspection table as shown in fig. 2, the rectangular inspection table is supported by two triangular bottom plates, the radial boundary of the T-shaped groove is T-shaped, the two T-shaped grooves are vertically distributed, and a connection line with the center of the rectangular inspection table is L-shaped, the axial open groove and one of the T-shaped grooves are symmetrically distributed about the center of the rectangular inspection table, and the torsion spring table is mounted on one of the triangular bottom plates, and the extension direction of the torsion spring table is parallel to the axial open groove.

As shown in fig. 3, the door-shaped guide rail is a guide rail with a door-shaped section, the clamping block is located in the door, the pre-tightening bolt is installed at the top of the door-shaped guide rail, the clamping block guide rail is tightly pressed and fixed by the pre-tightening bolt, the strip-shaped groove body can be formed in the lower bottom surface of the trapezoidal sliding block, the movable probe is installed in the strip-shaped groove body, and the head of the movable probe extends out of the axial open groove and is matched with the two fixed probes for measurement.

Preferably, a spherical open slot is formed in at least one contact surface of the gate-shaped guide rail and the clamping block guide rail and the trapezoidal sliding block, and a ball, part of the surface of which is in contact with the trapezoidal sliding block, is accommodated in the spherical open slot, so that the trapezoidal sliding block can smoothly slide. The spherical open grooves are distributed on the two side faces and the lower bottom of the trapezoidal sliding block, or distributed on the two side faces of the trapezoidal sliding block, or distributed on the lower bottom face of the trapezoidal sliding block.

As shown in fig. 5, an end cover is arranged at one end of the door-shaped guide rail 2-1, which is far away from the torsion spring meter, one end of the trapezoidal slider penetrates through the door-shaped guide rail and extends into the end cover, and a spring is arranged between the end of the trapezoidal slider of the extension part and the end cover. The trapezoidal sliding block is pre-tightened by a spring, and the pre-tightening force is transmitted to finally show that the detection contact abuts against the raceway of the outer ring of the bearing.

The use method of the bearing outer ring raceway diameter size measuring device comprises the following steps: the bearing outer ring is placed on the inspection table, one fixed probe and the movable probe are located on the inner side of the raceway of the bearing outer ring, the other fixed probe is located on the outer side of the bearing outer ring, then the trapezoidal sliding block is pulled to move outwards to the shell assembly along the door-shaped guide rail, and the top block abuts against the contact of the torsion spring meter, so that the linear displacement of the trapezoidal sliding block is measured, and the size of the raceway of the bearing outer ring is measured.