CN204135646U - Install and the device detected for oscillating bearing - Google Patents

Abstract

A device for installing and detecting joint bearings belongs to the technical field of joint bearing installation. A worktable is arranged on the bed, and the pressure measurement platform is fixed on the worktable. The fixture base, part fixture, vertical lifting mechanism, and bearing outer ring fixing parts are arranged on the pressure measurement platform; the spinning spindle is arranged on the bed, and the spinning spindle and the mandrel connection; the horizontal pushing mechanism is fixed on the workbench, and the displacement sensor is arranged on the horizontal pushing mechanism. The pressure measurement platform, vertical lifting mechanism, horizontal pushing mechanism, displacement sensor, spinning spindle are connected with the measurement and control electric cabinet. The utility model can realize the press-fitting, closing and extrusion detection of the joint bearing, and is beneficial to the mass production of the joint bearing installation and detection.

Description

Device for installation and inspection of spherical plain bearings

technical field

The utility model relates to a special device, in particular to a device for installing and detecting joint bearings. the

Background technique

Joint bearing is a kind of spherical sliding bearing, which is mainly composed of an outer spherical inner ring and an inner spherical outer ring, and is generally used for low-speed swinging motion, tilting motion and rotating motion. Joint bearings are widely used in key parts such as rotor systems, control systems, aircraft landing gear, rudders, transmission systems and aero engines of aviation vehicles. The installation requirements of joint bearings are that, while ensuring the radial load capacity, the bearings can withstand as large an axial force as possible, so as to ensure that the starting torque and rotation flexibility of the bearings are not affected. the

The installation of spherical plain bearings is divided into three steps: (1) Press fitting, that is, slowly and evenly apply a pressing force on the end face of the outer ring of the spherical plain bearing, and press the bearing into the bearing seat hole of the part; (2) Fix the closing, that is, press the joint The mounting groove of the bearing or the special groove of the bearing seat hole is extruded, and a part of the material of the installation groove of the spherical plain bearing or the special groove of the bearing seat hole is filled into the chamfer of the bearing seat hole or the chamfer of the outer ring of the spherical plain bearing through plastic deformation. Make the bearing not displace when it bears the axial load; (3) Press-out detection, that is, according to the relevant standards, load the allowable axial push-out force on the outer ring of the bearing, and check whether the displacement of the installed bearing under the action of axial force is qualified. the

At present, the press-fitting and closing-fixing of spherical plain bearings all rely on manual operation, and parameters such as the press-fitting pressure and closing-fixing pressure, and the axial feed during press-fitting depend on the experience of the operator, and repeated flipping is required during the closing-fixing process Joint bearings and housings to achieve two-way balanced closing. This brings about the problem of low assembly efficiency, and it is easy to cause a sharp increase in the starting torque or a sharp decrease in the clearance after the joint bearing is installed and fixed, and even cause the joint bearing to lock, causing the joint bearing to lose its function. At present, the extrusion detection only relies on the detection method of pushing the bearing out of the bearing seat at one time, which cannot accurately evaluate the fixing quality of the spherical plain bearing. the

Utility model content

The purpose of this utility model is to provide a device for the installation and detection of joint bearings, which can complete the press-fitting, closing and fixing, and extrusion detection of joint bearings, and install different types of joint bearings by changing the clamping tool and detection. the

A device for installing and testing joint bearings, characterized in that it includes a bed, a workbench fixed on the bed, a pressure measurement platform installed on the workbench, a fixture base installed on the pressure measurement platform, and a The part fixture on the fixture base; it also includes the spinning spindle installed on the bed, and the mandrel installed at the end of the spinning spindle; the mandrel is located directly above the part fixture; it also includes a horizontal push mechanism installed on the workbench. The mechanism is equipped with a displacement sensor; it also includes a vertical push mechanism installed on the workbench and located directly below the part fixture; it also includes a measurement and control electric cabinet. the

The method for installing and detecting joint bearings is characterized in that:

Step 1. Press-fit the joint bearing, the specific process: the mandrel is a press-fit mandrel, and the spinning spindle does not rotate when it is working; the part is fixed on the part fixture, and the joint bearing is placed on the part, and the spinning spindle is driven The press-fitting mandrel feeds vertically downwards to press the joint bearing into the set position of the part to complete the press-fitting of the joint bearing;

Step 2. The joint bearing is closed and fixed. The specific process is: the mandrel is the closed mandrel, and the spinning spindle rotates when it is working; the vertical lifting mechanism raises the bearing outer ring fixing part of the joint bearing to the set position and supports the joint The outer ring of the bearing; the spinning spindle drives the closing mandrel to feed vertically downward and rotate at the same time, so that the end of the closing mandrel matches the inner ring of the pressed joint bearing, and the joint bearing outer ring or parts are closed and fixed; Then turn it over and finish closing on the other side to complete the closing and fixing of the joint bearing;

Step 3. Extrusion detection of joint bearings. The specific process is: the mandrel is a press-fit mandrel, and the spinning spindle does not rotate when it is working; the vertical lifting mechanism lowers the fixing part of the outer ring of the bearing to the set position, and the horizontal pushing mechanism Push the displacement sensor to the set position, and make the sensing end of the displacement sensor face the outer ring of the joint bearing; the spinning spindle drives the press-fit mandrel to feed vertically downwards, and cooperates with the inner ring of the joint bearing that has been press-fitted and closed, The spinning spindle drives the press-fit mandrel to apply downward pressure to the outer ring of the joint bearing according to the set program. The loaded pressure value is measured by the pressure measurement platform and fed back to the measurement and control electric cabinet. The displacement of the outer ring of the joint bearing is determined by the displacement The sensor measures and feeds back to the measurement and control electric cabinet, and the signal analysis and processing system in the measurement and control electric cabinet gives an indication of whether the extrusion test of the tested joint bearing is qualified.

The joint bearing automatic installation and detection device provided by the utility model can realize the integration of press-fitting, closure fixing, and extrusion detection of the joint bearing, which is beneficial to the mass production of the joint bearing installation and detection. the

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is a partially enlarged view of the utility model (at A in Figure 1), showing the working state of the joint bearing when the mouth is fixed;

Fig. 3 is a partially enlarged view of the utility model (at A in Fig. 1), showing the working state of the joint bearing during press-fitting and press-out detection;

In the figure: 1. Workbench, 2. Pressure measuring platform, 3. Vertical lifting mechanism, 4. Horizontal pushing mechanism, 5. Displacement sensor, 6. Bearing outer ring fixing part, 7. Mandrel, 7-1. Closing core Shaft, 7-2. Press-fit mandrel, 8. Spinning spindle, 9. Measurement and control electric cabinet, 10. Parts, 11. Joint bearing, 12. Parts fixture, 13. Fixture base, 14. Bed.

Detailed ways

Below in conjunction with accompanying drawing the utility model is described in further detail:

As shown in Figure 1: an installation and detection device for joint bearings, including a workbench 1, a pressure measurement platform 2, a vertical lifting mechanism 3, a horizontal pushing mechanism 4, a displacement sensor 5, a bearing outer ring fixture 6, a core Axis 7, Spinning Spindle 8, Measurement and Control Electric Cabinet 9, Part Fixture 12, Fixture Base 13, Bed 14

The workbench 1 is arranged on the bed 14, the pressure measurement platform 2 is arranged on the workbench 1, the fixture base 13 and the vertical lifting mechanism 3 are arranged on the pressure measurement platform 2, the parts fixture 12 is arranged on the fixture base 13, and the pressure measurement platform 2 is also arranged The vertical lifting mechanism 3, the bearing outer ring fixture 6 is arranged on the top of the vertical lifting mechanism 3; the horizontal pushing mechanism 3 is arranged on the workbench 1, and the displacement sensor 5 is arranged on the horizontal pushing mechanism 3; the spinning spindle 8 is arranged on the bed 14, and the spinning spindle 8 Drive the vertical feed of the mandrel 7 and the rotation in the horizontal plane.

Work process of the present utility model is:

Step 1. Press-fit joint bearings, the specific process:

The mandrel 7 is a press-fit mandrel 7-2, and the spinning main shaft 8 does not rotate when it works.

Fix the part 10 on the part fixture 12, and place the joint bearing 11 on the part (10), and the spinning spindle (8) drives the mandrel to move downward, so that the end of the mandrel fits with the inner ring of the joint bearing 11; The spinning spindle 8 drives the press-fit mandrel 7-2 to feed vertically downward to press the joint bearing 11 into the set position of the part 10, and complete the press-fit of the joint bearing 11;

Step 2. Fix the socket of the joint bearing, the specific process is:

The mandrel 7 is a closing mandrel 7-1, and the spinning main shaft 8 rotates when it works.

The vertical lifting mechanism 3 lifts the bearing outer ring fixing part 6 of the joint bearing 11 to a set position and supports the outer ring of the joint bearing 11; the spinning spindle 8 drives the closing mandrel 7-1 to feed vertically downward and rotate at the same time , so that the end of the closing mandrel fits with the inner ring of the pressed joint bearing 11, and closes and fixes the outer ring of the joint bearing 11 or the part 10;

Step 3. Extrusion detection of joint bearings, the specific process is:

The mandrel 7 is a press-fit 7-2, and the spinning main shaft 8 does not rotate when it works.

The vertical lifting mechanism 3 lowers the bearing outer ring fixture 6 to the set position, the horizontal pushing mechanism 3 pushes the displacement sensor 5 to the set position, and makes the sensing end of the displacement sensor 5 face the outer ring of the joint bearing 11; the spinning spindle 8 Drive the press-fit mandrel 7-2 to feed vertically downward, and cooperate with the inner ring of the press-fit joint bearing 11, and the spinning main shaft 8 drives the press-fit mandrel 7-2 to the joint bearing 11 according to the set program. The outer ring is loaded with downward pressure, and the loaded pressure value is measured by the pressure measurement platform 2 and fed back to the measurement and control electric cabinet. The displacement of the outer ring of the joint bearing 11 is measured by the displacement sensor 5 and fed back to the measurement and control electric cabinet. The measurement and control electric cabinet 9 The internal signal analysis and processing system gives an indication of whether the extrusion test of the tested spherical plain bearing is qualified. the

Claims (1)

1. for the device that oscillating bearing is installed and detected, it is characterized in that: comprise lathe bed (14), be fixed on the workbench (1) of lathe bed (14), the pressure measxurement platform (2) be installed on workbench (1), the clamp base (13) be installed on pressure measxurement platform (2), the part clamp (12) be installed in clamp base (13);

Also comprise the spinning main shaft (8) being installed on lathe bed (14), the mandrel (7) being installed on spinning main shaft (8) end; Mandrel (7) is positioned at directly over part clamp (12);

Also comprise the horizontal delivery device (4) be installed on workbench (1), horizontal delivery device (4) is provided with displacement transducer (5);

Also comprise the vertical delivery device (3) be positioned at immediately below part clamp (12) be installed on workbench (1);

Also comprise observing and controlling electricity cabinet (9).