阅读说明：本技术 滑套外花键与轴承外圆同轴度快速检测装置 (Quick detection device of sliding sleeve external spline and bearing excircle coaxiality ) 是由 李龙生 李智化 耿旭 王佳迅 李月 于 2019-09-28 设计创作，主要内容包括：本发明公开了一种滑套的花键与轴承圆同轴度快速检测装置,包括内孔带锥度的轴承、三个以上的相同量棒、固定架和百分表或千分表；轴承内孔直径大的一面在下面,固定架上端通过螺钉固定在轴承的外套上,其下端开有百分表或千分表的探针过孔,探针穿在探针过孔内,由表夹套固定在探针过孔内,保证百分表或千分表的探针的中心轴线与轴承锥孔的中心轴线的垂直度；检测时,被测滑套外花键通过均匀分布的各量棒安装在轴承内套内,各量棒一端与被测滑套外花键的齿面贴实,另一端顶紧在轴承内套内壁上。本发明检测的直观,检测时间短,缩短了6倍以上,检测效率高,进而提高了滑套的加工效率。(The invention discloses a device for quickly detecting the coaxiality of a spline of a sliding sleeve and a bearing circle, which comprises a bearing with an inner hole with a taper, more than three same measuring rods, a fixing frame and a dial indicator or a dial indicator, wherein the bearing is provided with a taper; the surface with the large diameter of the inner hole of the bearing is arranged below, the upper end of the fixing frame is fixed on the outer sleeve of the bearing through a screw, the lower end of the fixing frame is provided with a probe through hole of the dial indicator or the dial indicator, the probe penetrates through the probe through hole and is fixed in the probe through hole through a meter clamping sleeve, and the verticality of the central axis of the probe of the dial indicator or the dial indicator and the central axis of the bearing taper hole is ensured; when the detection is carried out, the external spline of the detected sliding sleeve is arranged in the bearing inner sleeve through the measuring rods which are uniformly distributed, one end of each measuring rod is tightly attached to the tooth surface of the external spline of the detected sliding sleeve, and the other end of each measuring rod is tightly propped against the inner wall of the bearing inner sleeve. The detection method is intuitive, short in detection time, shortened by more than 6 times, and high in detection efficiency, and further improves the machining efficiency of the sliding sleeve.)

1. The utility model provides a spline and bearing circle axiality short-term test device of sliding sleeve which characterized in that: the device comprises a bearing with an inner hole with taper, more than three same measuring rods, a fixed frame and a dial indicator or a dial indicator; the surface with the large diameter of the inner hole of the bearing is arranged below, the upper end of the fixing frame is fixed on the outer sleeve of the bearing through a screw, the lower end of the fixing frame is provided with a probe through hole of the dial indicator or the dial indicator, the probe penetrates through the probe through hole and is fixed in the probe through hole through a meter clamping sleeve, and the verticality of the central axis of the probe of the dial indicator or the dial indicator and the central axis of the bearing taper hole is ensured; when the detection is carried out, the external spline of the detected sliding sleeve is arranged in the bearing inner sleeve through the measuring rods which are uniformly distributed, one end of each measuring rod is tightly attached to the tooth surface of the external spline of the detected sliding sleeve, and the other end of each measuring rod is tightly propped against the inner wall of the bearing inner sleeve.

2. The device for rapidly detecting the coaxiality of the spline of the sliding sleeve and the bearing circle according to claim 1, is characterized in that: the measuring bars are 3 and are distributed at an included angle of 120 degrees.

Technical Field

The invention relates to a device for quickly detecting coaxiality of an external spline of a sliding sleeve and an outer circle of a bearing.

Background

The concentricity of an external spline of the sliding sleeve and the excircle of a bearing needs to be detected in a three-coordinate mode at present, the external spline in the whole circumferential direction of the sliding sleeve needs to be scanned by a probe, the scanning position is the tooth side, the external spline is detected one by one, then the excircle of the bearing is scanned, and finally whether the external spline is concentric or not can be obtained through complex calculation, the detection time of the detection method is shortest and is 30 minutes, the detection time is long, the detection efficiency is low, and the processing efficiency is influenced; and the burr of the spline of the sliding sleeve has a great influence on the scanning precision of the probe, and whether the probe scans the external spline and the bearing excircle are absolutely influenced by the experience of a scanning operator on the same circumference is great.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a device for rapidly detecting the coaxiality of a spline and a bearing circle of a sliding sleeve, which has the advantages of visual detection, short detection time, 6-time shortening and high detection efficiency, and further improves the machining efficiency of the sliding sleeve.

In order to achieve the purpose, the technical solution of the invention is as follows: a quick detection device for coaxiality of a spline of a sliding sleeve and a bearing circle comprises a bearing with an inner hole with taper, more than three same measuring rods, a fixing frame and a dial indicator or a dial indicator; the surface with the large diameter of the inner hole of the bearing is arranged below, the upper end of the fixing frame is fixed on the outer sleeve of the bearing through a screw, the lower end of the fixing frame is provided with a probe through hole of the dial indicator or the dial indicator, the probe penetrates through the probe through hole and is fixed in the probe through hole through a meter clamping sleeve, and the verticality of the central axis of the probe of the dial indicator or the dial indicator and the central axis of the bearing taper hole is ensured; when the detection is carried out, the external spline of the detected sliding sleeve is arranged in the bearing inner sleeve through the measuring rods which are uniformly distributed, one end of each measuring rod is tightly attached to the tooth surface of the external spline of the detected sliding sleeve, and the other end of each measuring rod is tightly propped against the inner wall of the bearing inner sleeve.

Further preferably, the measuring rod is 3, and the mutual 120 contained angles that become distribute, both saved the use of measuring rod, can guarantee again to be surveyed the straightness that hangs down of the center pin of sliding sleeve, detect with low costs.

During detection, a detected sliding sleeve is arranged or fixed on an operation platform with excellent levelness, then the spline part of the detected sliding sleeve is arranged in a bearing inner sleeve of a detection device, a rotary bearing, a probe of a dial indicator or a dial indicator rotates on the bearing outer circle of the detected sliding sleeve, and the concentricity between a measurement reference and a detected optical axis can be read out through the change of a pointer of a gauge head of the dial indicator or the dial indicator. The invention adopts the involute external spline pin centering technology, three (or more than three uniformly distributed) pins are placed in the spline tooth surface and respectively form an included angle of 120 degrees, and then the outer sides of the pins are sleeved by using a second type of measuring tool so as to achieve the purpose of determining the center of the spline. The invention also adopts a rotation measurement technology, the bearing inner ring is taken as a reference, the measuring gauge head is fixed on the bearing outer ring, the bearing is rotated to enable the measuring gauge to rotate on the measured outer circle, and the concentricity between the measuring reference and the measured optical axis can be read out through the change of the pointer of the measuring gauge head. The detection method is intuitive, the detection time is shortened to 5 minutes, the detection time is short, the detection time is shortened by more than 6 times, the detection efficiency is high, the detection cost is low, the efficiency is improved by more than 83%, the machining efficiency of the sliding sleeve is further improved, the output is improved, and the machining cost is reduced.

Drawings

FIG. 1 is a top view of the present invention;

fig. 2 is a cross-sectional view AA of fig. 1.

Detailed Description

The invention is further described with reference to specific examples.

As shown in fig. 1 and fig. 2, the present embodiment includes a bearing 9 with a tapered inner bore, three (four, five, etc. that may also be uniformly distributed) identical measuring rods 4, a fixing frame 7, and a dial indicator 6 (which may also be a dial indicator). The side with the large diameter of the inner hole of the bearing 9 is arranged at the lower part. The upper end of the fixing frame 7 is fixed on the outer sleeve 3 of the bearing 9 through a screw 8, the lower end of the fixing frame is provided with a probe through hole 12 of the dial indicator 6, the probe 11 penetrates through the probe through hole 12 and is fixed in the probe through hole 12 through the indicator jacket 5, and the perpendicularity of the central axis of the probe 11 of the dial indicator 6 and the central axis of the bearing taper hole is ensured. During detection, the external spline of the detected sliding sleeve 10 is arranged in the bearing inner sleeve through the measuring rods 4 which are uniformly distributed, one end of each measuring rod 4 is tightly attached to the tooth surface of the external spline of the detected sliding sleeve 10, and the other end of each measuring rod is tightly propped against the inner wall of the bearing 9 inner sleeve. Preferably, the measuring rods 4 are 3 and are distributed at an included angle of 120 degrees with each other. 1. 2 are all screws.

The above-described embodiments are merely preferred and illustrative, and not restrictive, and any modifications, equivalents, improvements, etc., which come within the spirit and scope of the invention are intended to be included therein.