Outside-machine detection breath measuring head for bearing outer sleeve

Abstract

The utility model discloses an off-machine detection breath measuring head for a bearing sleeve, which relates to the technical field of bearing processing and detection, is of an integrally formed structure design and comprises a base, the base is of a disc-shaped structure, and a through hole for a positioning mandrel on a machine tool to penetrate through is formed in the center of the base. A plurality of bolt holes are formed in the base and are annularly distributed by taking the through hole as the center; four sector ring columns are circumferentially distributed at the bottom of the base, cavities are formed in the sector ring columns, air inlets used for being communicated with external compressed air are formed in the outer sides of the tops of the sector ring columns, air outlets acting on bearing outer rings are formed in the inner sides of the bottoms of the sector ring columns, and the air inlets and the air outlets are communicated with the cavities to form passages; the device is simple and reasonable in design, convenient to install, low in manufacturing cost, short in manufacturing period and good in detection effect; meanwhile, compared with an assembled structure, the integrally-formed structural design can guarantee the parallel error and the perpendicularity, time waste caused by measurement and adjustment is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing and detection, in particular to a breath detection probe for an off-machine bearing outer casing. Background Art

[0002] During the bearing production process, the shape and size tolerances of the bearing outer rings must be tested using a detection device. Existing bearing outer ring detection devices generally perform static testing on a single bearing outer ring. However, existing probes have problems such as a wide variety of varieties and specifications, long processing cycles, high procurement costs, and difficulty in management. In addition, it is difficult to ensure parallelism and perpendicularity of assemblable probes during use, and a specialized three-dimensional coordinate measuring instrument must be used for measurement and adjustment before they can be put into use. Utility Model Content

[0003] The purpose of the present invention is to provide a bearing outer casing off-machine breath detection probe, aiming to solve the problems of high manufacturing cost and complex installation and adjustment in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a probe for detecting breath outside a bearing outer casing, the probe is an integrally formed structure, including a base, the base is a disc-shaped structure, a through hole is provided at the center of the base for the positioning core shaft on the machine tool to pass through, a plurality of bolt holes are provided on the base, and the bolt holes are distributed in a ring shape with the through hole as the center, four fan ring columns are circumferentially arranged at the bottom of the base, a cavity is provided inside the fan ring column, an air inlet for connecting to external compressed air is provided on the outer side of the top of the fan ring column, and an air outlet acting on the outer ring of the bearing is provided on the inner side of the bottom, and the air inlet and the air outlet are both connected to the cavity to form a passage.

[0005] Furthermore, the free end of the fan ring column is provided with a chamfer on the side close to the axis of the through hole, and a notch on the side away from the axis of the through hole.

[0006] The utility model has the following beneficial effects:

[0007] The utility model provides a bearing outer casing off-machine breath detection probe with simple and reasonable design, convenient installation and adjustment, low manufacturing cost, short manufacturing cycle and good detection effect; at the same time, the one-piece structural design can ensure parallelism and verticality compared with the assembled structure, avoiding the waste of time caused by measurement and adjustment, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural sectional view of the utility model;

[0009] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0010] In the figure: 1. base; 2. through hole; 3. bolt hole; 4. fan ring column; 5. cavity; 6. air inlet; 7. air outlet. DETAILED DESCRIPTION

[0011] like Figures 1 to 2 As shown, a probe for detecting breath outside a bearing outer casing is designed as an integrated structure, including a base 1. The base 1 is a disc-shaped structure. A through hole 2 for the positioning core shaft on the machine tool to pass through is provided at the center of the base 1. A plurality of bolt holes 3 are provided on the base 1, and the bolt holes 3 are distributed in a ring shape with the through hole as the center. Four fan ring columns 4 are circumferentially arranged on the bottom of the base 1, and a cavity 5 is provided inside the fan ring column 4. An air inlet 6 for connecting to external compressed air is provided on the outer side of the top of the fan ring column 4, and an air outlet 7 acting on the outer ring of the bearing is provided on the inner side of the bottom. The air inlet 6 and the air outlet 7 are both connected with the cavity 5 to form a passage. The design of the arc wall on the fan ring column 4 has stronger wrapping, reduces the interference of the surrounding airflow, and makes the detection accuracy higher.

[0012] The free end of the fan ring column 4 is provided with a chamfer on the side close to the axis of the through hole 2, and a notch on the side away from the axis of the through hole 2. The cross section of the notch is a right angle, which is used for calibration to determine the original measurement position.

[0013] The specific operation process of this utility model is as follows:

[0014] When in use, first determine the original measurement position on the test bench, then pass the through hole 2 on the breath probe through the positioning core shaft on the machine tool and use bolts to fix it through the bolt holes 3. The air inlets 6 of the two opposite fan ring columns 4 are connected to the external compressed air and a rectifier device is installed on the air pipe.

[0015] Place the outer ring of the bearing in the automatic feeding and moving robot, adjust the moving position of the robot so that the outer ring of the bearing can be accurately moved to the detection position so that the center line of the outer ring of the bearing coincides with the center line of the breath probe, and set the detection parameters of the inspected product on the display interface of the detection machine according to the process requirements. Driven by the positioning core shaft of the machine tool, the breath probe starts to move up and down according to the detection rhythm and rotates to start detection. The air gap between the outer ring of the bearing and the fan ring column 4 on the probe is used for detection. During the detection, the air pressure sensor transfers the collected air gap amount to the analysis software through the electrical converter to calculate the size of the product being tested and display it on the display screen; during measurement, a certain gap is required between the fan ring column 4 and the outer ring of the bearing, and the gap must be controlled within 0.25mm.

Claims

1. A bearing outer shell off-machine breath detection probe, characterized by: The probe is designed as an integrally formed structure, comprising a base (1), the base (1) being a disc-shaped structure, a through hole (2) for a positioning core shaft on a machine tool to pass through is provided at the center of the base (1), a plurality of bolt holes (3) are provided on the base (1), and the bolt holes (3) are distributed in a ring shape with the through hole as the center, four fan ring columns (4) are circumferentially arranged at the bottom of the base (1), a cavity (5) is provided inside the fan ring column (4), an air inlet (6) for connecting to external compressed air is provided on the outer side of the top of the fan ring column (4), and an air outlet (7) acting on the outer ring of the bearing is provided on the inner side of the bottom, and the air inlet (6) and the air outlet (7) are both connected to the cavity (5) to form a passage.

2. The bearing outer shell off-machine breath detection probe according to claim 1, characterized in that: The free end of the fan ring column (4) is provided with a chamfer on the side adjacent to the axis of the through hole (2), and a notch on the side away from the axis of the through hole (2).

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