Floating positioning and supporting device for bushing

Abstract

The utility model discloses a bush floating positioning and supporting device which is characterized in that the bush floating positioning and supporting device comprises a transition plate and a positioning and supporting seat, a floating core shaft is arranged in the supporting seat in a sliding connection mode, a profiling block and a bush positioning pin are arranged on the floating core shaft, an air cylinder is further arranged in the supporting seat, and the lower end of the air cylinder is matched with the transition plate. A piston rod of the cylinder is matched with the lower part of the floating mandrel through a connecting seat; and a center correction module is arranged below the transition plate. The bushing press-fitting device has the advantages of being simple in structure and reliable in positioning, position deviation and angle inclination of a bushing press-fitting surface can be automatically adjusted, the situations that the bushing is stressed unevenly and the press-fitting surface is uneven in the press-fitting process are reduced, and the bushing can be well pressed into a mounting hole of a workpiece.

Description

Technical Field

[0001] The utility model relates to the field of positioning tooling, in particular to a bushing floating positioning support device. Background Art

[0002] Automobile bushings are used to be installed in the chassis, suspension and other locations of the automobile. Their main function is to isolate the vibration and noise from the chassis and suspension of the automobile, improve the ride comfort and driving controllability of the automobile, and reduce the occurrence of abnormal connection noise. Figure 1 The figure includes a limit cover plate a, a rubber body b, an outer tube c and an inner tube d. The bushing is installed into the mounting holes of the automobile chassis and suspension by press-fitting, but the existing press-fitting method is to place the bushing above the corresponding workpiece mounting hole, position it through the inner hole of the bushing inner tube d, and then start the press to press the bushing in. However, since it is impossible to ensure that the bushing press-fitting surface is parallel to the end face of the pressing head during the press-fitting process, it is easy to cause uneven force on the bushing press-fitting surface and then press-fitting deviation, resulting in scrap loss of parts.

[0003] CN 219818711 U "A bushing press-fit support device" discloses a bushing press-fit support device, which is characterized by comprising a support sliding mounting seat, a support sliding seat, a bushing support seat, and a support cylinder, wherein the support sliding seat is arranged on the top surface of the support sliding mounting seat, the support cylinder is installed on the bottom surface of the support sliding mounting seat, the bushing support seat is slidably arranged in the support sliding seat, the piston rod of the support cylinder passes through the support sliding mounting seat to provide support force for the bushing support seat, the top surface of the bushing support seat is the bushing support surface, and a bushing positioning pin is arranged at the center of the bushing support surface, and a positioning protrusion is provided on the bushing positioning pin. Although this patent solves the problem of uneven force on the bushing during the press-fitting process, it cannot ensure that the bushing press-fitting surface and the end surface of the pressure head are parallel and self-adjusted due to its structural limitations, which easily causes the bushing to be pressed off. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model aims to provide a bushing floating positioning support device, which has a simple structure, reliable positioning, automatic parallel adjustment of the pressing surface, and can well press the bushing into the installation hole of the workpiece.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bushing floating positioning support device, characterized in that it includes a transition plate and a positioning support seat, a floating core shaft is slidingly arranged in the support seat, a contour block and a bushing positioning pin are arranged on the floating core shaft, a cylinder is also arranged inside the support seat, the lower end of the cylinder is matched with the transition plate, and the piston rod of the cylinder is matched with the lower part of the floating core shaft through a connecting seat; a center correction module is arranged below the transition plate.

[0007] Furthermore: the upper part of the connecting seat is bolted to the lower part of the floating core shaft; the lower part of the cylinder connecting head is threadedly matched with the piston rod, and the upper part of the cylinder connecting head is slidably connected in the groove of the connecting seat.

[0008] Furthermore: the transition plate, the positioning support seat and the center correction module are connected by bolts.

[0009] Furthermore: guide keys are bolted on both sides of the floating core shaft, and guide groove keys that match the guide keys are vertically arranged on the inner surface of the positioning support seat.

[0010] Further: the center correction module is arranged on the lower end surface of the transition plate; its model is B6-150-130-10T.

[0011] Furthermore: the profiling block is symmetrically arranged on the upper end surface of the floating core shaft, and the positioning surface is a profiling surface, which cooperates with the rubber body cavity at the lower end of the bushing.

[0012] The advantages and positive effects of the utility model are: simple structure, reliable positioning, automatic adjustment of the position offset and angle inclination of the bushing pressing surface, reduction of uneven force on the bushing and uneven pressing surface during the pressing process, and ability to press the bushing into the mounting hole of the workpiece well. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of a bushing in the background technology;

[0015] Figure 2 It is a structural schematic diagram of the utility model;

[0016] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Explanation of the serial numbers in the figure: a limit cover plate, b rubber body, c outer tube, d inner tube, 1 transition plate, 2 positioning support seat, 3 cylinder connecting head, 4 connecting seat, 5 guide key, 6 floating mandrel, 7 profiling block, 8 bushing positioning pin, 9 cylinder, 10 center correction module. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0019] like Figure 2-3As shown, the utility model discloses a bushing floating positioning support device, including a transition plate 1 and a positioning support seat 2, a floating core shaft 6 is slidingly arranged in the support seat, a contour block 7 and a bushing positioning pin 8 are arranged on the floating core shaft, and a cylinder 9 is also arranged inside the support seat, the lower end of the cylinder is connected and matched with the transition plate bolts, and the piston rod of the cylinder is matched with the lower part of the floating core shaft through the connecting seat 4; a center correction module 10 is arranged below the transition plate.

[0020] Preferably, the upper portion of the connection seat is bolted to the lower portion of the floating mandrel; the lower portion of the cylinder connection head is threadedly matched with the piston rod, and the upper portion of the cylinder connection head is slidably connected in the groove of the connection seat.

[0021] Preferably, the transition plate, the positioning support seat and the center correction module are connected by bolts.

[0022] Preferably: guide keys 5 are bolted on both sides of the floating mandrel, and guide groove keys matching with the guide keys are vertically arranged on the inner surface of the positioning support seat.

[0023] Preferably, the center correction module is arranged on the lower end surface of the transition plate; it is a standard part, model B6-150-130-10T.

[0024] Preferably, the profiling block is symmetrically arranged on the upper end surface of the floating mandrel by means of bolts, and the positioning surface is a profiling surface, which cooperates with the rubber body cavity at the lower end of the bushing.

[0025] The present invention is further described below by way of examples. Example

[0026] A bushing floating positioning support device comprises a transition plate 1, a positioning support seat 2, a floating core shaft 6, a guide key 5 and a bushing positioning pin 8, wherein the positioning support seat 2 is arranged on the upper end surface of the transition plate 1, and the upper end surface of the positioning support seat 2 is used to support the lower end surface of the chassis or suspension workpiece mounting hole, the floating core shaft 6 is a stepped shaft, which is arranged inside the positioning support seat 2, the large shaft diameter at the lower end is slidably connected with the inner hole of the positioning support seat 2, and the small shaft diameter at the upper end extends out of the positioning support seat 2 and cooperates with the inner hole of the chassis or suspension workpiece mounting hole to position and guide the workpiece mounting hole, the bushing positioning pin 8 is screwed on the upper end surface of the floating core shaft 6, the outer circle of the bushing positioning pin 8 cooperates with the inner hole of the bushing inner tube to ensure that the bushing and the workpiece mounting hole are coaxial during the press-fitting process, the guide key 5 is symmetrically screwed on both sides of the outer circle of the large shaft diameter at the lower end of the floating core shaft 6, and slides with the keyway in the positioning support seat 2 to prevent the floating core shaft 6 from rotating in the positioning support seat 2;

[0027] The cylinder 9 is arranged inside the positioning support seat 2, and the lower flange of the cylinder 9 is screwed to the upper end face of the transition plate 1 to provide support force for the floating mandrel 6. The lower end screw of the cylinder connector 3 is screwed to the internal thread of the end of the piston rod of the cylinder 9. The upper end of the cylinder connector 3 is arranged in the T-slot of the connecting seat 4. The connecting seat 4 is screwed to the lower end of the floating mandrel 6.

[0028] The center correction module 10 is of model B6-150-130-10T and is arranged on the lower end surface of the transition plate 1. Its function is to automatically correct the position deviation and angle inclination between the pressure head and the bearing surface of the bushing during press-fitting.

[0029] The profiling block 7 is symmetrically arranged on the upper end surface of the floating core shaft 6, and the positioning surface is a profiling surface, which cooperates with the rubber body cavity at the lower end of the bushing to ensure that the inner tube and the rubber body can be effectively supported, and the bushing press-fitting angle is positioned and error-proofed.

[0030] The specific operation process of this embodiment is as follows:

[0031] The working principle of the bushing floating positioning support device of the utility model is that it is necessary to first confirm that the piston rod of the cylinder 9 in the utility model is in an extended state, the floating mandrel 6 is lifted and extended by force, the workpiece mounting hole is inserted into the floating mandrel 6, the lower end of the workpiece mounting hole sleeve is firmly against the upper end of the positioning support seat 2, and then the bushing inner tube is sleeved onto the bushing positioning pin 8 at the upper end of the floating mandrel 6, and it is confirmed that the rubber body cavity at the lower end of the bushing and the profiling block 7 are in place. Then start the press button, the solenoid valve of the cylinder 9 receives a signal to release the pressure, the piston rod of the cylinder 9 is in a free state, and the floating mandrel 6 has no lifting force. When the pressure head descends and the pressure head pressing surface and the bushing end face are initially in contact, the position offset and angle inclination of the pressure head and the bushing force surface are automatically corrected under the action of the center correction module 10. The pressure head continues to descend, and the bushing pushes the floating mandrel 6 downward, pressing the bushing into the workpiece mounting hole at a uniform speed. After the press-fitting is in place, the piston rod of the cylinder 9 extends out, and the floating mandrel 6 is lifted up by force, so that the press-fitted workpiece is lifted up and separated from the positioning support device, and the press-fitting of the bushing is completed.

Claims

1. A bushing floating positioning support device, characterized in that: It includes a transition plate and a positioning support seat, a floating core shaft is slidingly arranged in the support seat, a contour block and a bushing positioning pin are arranged on the floating core shaft, and a cylinder is also arranged inside the support seat, the lower end of the cylinder is matched with the transition plate, and the piston rod of the cylinder is matched with the lower part of the floating core shaft through the connecting seat; a center correction module is arranged below the transition plate.

2. A bushing floating positioning support device according to claim 1, characterized in that: The upper part of the connection seat is bolted to the lower part of the floating core shaft; the lower part of the cylinder connection head is threadedly matched with the piston rod, and the upper part of the cylinder connection head is slidably connected in the groove of the connection seat.

3. The bushing floating positioning support device according to claim 1, characterized in that: The transition plate, the positioning support seat and the center correction module are connected by bolts.

4. A bushing floating positioning support device according to claim 1, characterized in that: Guide keys are bolted on both sides of the floating mandrel, and guide groove keys matched with the guide keys are vertically arranged on the inner surface of the positioning support seat.

5. The bushing floating positioning support device according to claim 1, characterized in that: The model of the center correction module is B6-150-130-10T.

Images