A kind of automobile steering gear box damping sleeve press mounting mechanism

Abstract

The utility model discloses a kind of automobile steering gear box shock-absorbing sleeve press-fit mechanism, including vertical cylinder, cylinder control switch, steering gear box positioning device, shock-absorbing sleeve positioning shaft, steering gear box positioning device includes bottom plate, and two box body positioning supports, box body positioning hole supporting cylinder, box body positioning shaft are installed on bottom plate with left and right interval, shock-absorbing sleeve positioning shaft and box body positioning shaft are coaxially fixed together upside down, and are installed in box body positioning hole supporting cylinder by spring floating;The left and right ends of steering gear box are supported on two box body positioning supports, the lower end surface of box body positioning hole is supported on box body positioning hole supporting cylinder, at this time, box body positioning hole can be just sleeved on box body positioning shaft, shock-absorbing sleeve can be just sleeved on shock-absorbing sleeve positioning shaft, vertical cylinder is located just above shock-absorbing sleeve positioning shaft, ensure the coaxiality of shock-absorbing sleeve press-fit with box body positioning hole.The utility model solves the problem that box body positioning hole and shock-absorbing sleeve hole coaxiality error is too large and the efficiency is low in press-fit process.

Description

Technical Field

[0001] This utility model relates to the field of mechanical steering gear technology, and in particular to a shock absorber sleeve pressing mechanism for automotive steering gear housing. Background Technology

[0002] like Figure 1 As shown, the steering gear housing 8 of the car is provided with a positioning hole 8a for installing the shock absorber sleeve 3. The shock absorber sleeve 3 and the positioning hole 8a are interference fit. Currently, the shock absorber sleeve 3 is pressed into the positioning hole 8a by manual pressing. However, the manual pressing process consumes too much physical strength of the employees and is inefficient. The top and bottom of the shock absorber sleeve 3 are equipped with rubber disc flanges. When fully pressed, the disc flanges at both ends are located outside the positioning hole 8a of the steering gear housing. Due to the rubber material, it is easy to cause excessive coaxiality error between the positioning hole on the steering gear housing and the shock absorber sleeve, resulting in excessive deformation of the shock absorber sleeve, scrapping the shock absorber sleeve, and increasing material costs. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a pressing mechanism for shock absorber sleeves of automotive steering gear housings, so as to solve the problems of excessive coaxiality error between the housing positioning hole and the shock absorber sleeve hole and low efficiency during the pressing process.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a press-fitting mechanism for a shock absorber sleeve of an automotive steering gear housing, including a vertical cylinder, a cylinder control switch, a steering gear housing positioning device, and a shock absorber sleeve positioning shaft. The steering gear housing positioning device includes a base plate, two housing positioning brackets, a housing positioning hole support cylinder, and a housing positioning shaft, which are mounted on the base plate at left and right intervals. The shock absorber sleeve positioning shaft is coaxially fixed with the housing positioning shaft and is floatingly mounted in the housing positioning hole support cylinder by a spring. The two housing positioning brackets are used to support the left and right ends of the steering gear housing from below. The housing positioning hole support cylinder is used to support the housing positioning hole of the steering gear housing. At this time, the housing positioning hole can fit onto the housing positioning shaft, and the shock absorber sleeve can fit onto the shock absorber sleeve positioning shaft. The vertical cylinder is mounted on the base plate through a cylinder mounting seat and is located directly above the shock absorber sleeve positioning shaft, thereby ensuring the coaxiality of the shock absorber sleeve with the housing positioning hole of the steering gear housing during press-fitting.

[0005] As a preferred embodiment of the above solution, the overall shape of the housing positioning bracket is "L". The horizontal part is mounted on the base plate with screws, and the top thickness of the vertical part matches the groove width of the annular groove at the end of the steering gear housing.

[0006] More preferably, the cylinder mounting base and the housing positioning hole support cylinder are located on the rear side of the two housing positioning brackets.

[0007] A further preferred embodiment is that the cylinder control switch is centrally located on the left and right sides, in front of the two housing positioning brackets.

[0008] A further preferred embodiment is that the support cylinder for the positioning hole of the housing is a cylinder and is coaxial with the positioning shaft of the shock-absorbing sleeve.

[0009] More preferably, the cylinder mounting base is in the shape of a "7", the vertical cylinder is mounted on the top of the cylinder mounting base, and the cylinder mounting base is welded to the base plate.

[0010] The beneficial effects of this utility model are as follows: two housing positioning brackets are used to support the left and right ends of the steering gear housing from below, and the housing positioning hole support cylinder is used to support the lower end face of the housing positioning hole of the steering gear housing, ensuring that the steering gear housing is placed stably; the shock absorber sleeve positioning shaft and the housing positioning shaft are fixed together coaxially, and the vertical cylinder is located directly above the shock absorber sleeve positioning shaft. When the vertical cylinder is pressed down, the steering gear housing will not be rotated, and the coaxiality of the shock absorber sleeve positioning shaft and the housing positioning hole is achieved, which improves production efficiency and reduces labor costs. Attached Figure Description

[0011] Figure 1 This is an exploded view of the steering gear housing and shock absorber sleeve.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] Figure 3 This is a diagram showing the state of this utility model before pressing.

[0014] Figure 4 This is a diagram showing the state of the present invention after pressing. Detailed Implementation

[0015] like Figure 2 As shown in Figure 4, a shock absorber sleeve pressing mechanism for an automotive steering gear housing mainly consists of a steering gear housing positioning device, a vertical cylinder 2, a cylinder mounting seat 5, a cylinder control switch 7, and a shock absorber sleeve positioning shaft 9.

[0016] The steering gear housing positioning device includes a base plate 1, a housing positioning hole support cylinder 4, a housing positioning shaft 10, and two housing positioning brackets 6 mounted on the base plate 1 at left and right intervals. Preferably, the two housing positioning brackets 6 are L-shaped as a whole, with the horizontal part mounted on the base plate 1 by screws, and the top thickness of the vertical part matching the groove width of the annular groove at the end of the steering gear housing 8, for supporting the left and right ends of the steering gear housing 8 from below; the housing positioning hole support cylinder 4 is preferably cylindrical and coaxial with the shock absorber sleeve positioning shaft, for supporting the lower end face of the housing positioning hole 8a of the steering gear housing 8, and the shock absorber sleeve positioning shaft 9 is coaxially fixed with the housing positioning shaft 10 and is floatingly mounted in the housing positioning hole support cylinder 4 by springs.

[0017] The cylinder control switch 7 is used to control the operation of the cylinder. It is best to set it in the center left and right, in front of the two housing positioning brackets 6. The cylinder mounting base 5 is in the shape of a "7". The vertical cylinder 2 is installed on the top of the cylinder mounting base 5. The cylinder mounting base 5 is welded to the base plate 1, and the cylinder mounting base 5 and the housing positioning hole support cylinder 4 are located in the rear of the two housing positioning brackets 6.

[0018] When the left and right ends of the steering gear housing 8 are supported on the two housing positioning brackets 6, and the lower end face of the housing positioning hole 8a is supported on the housing positioning hole support cylinder 4, the housing positioning hole 8a fits perfectly on the housing positioning shaft 10, and the shock absorber sleeve 3 fits perfectly on the shock absorber sleeve positioning shaft 9. At this time, by controlling the cylinder switch 7, the cylinder 2 is pressed down, and the shock absorber sleeve 3 deforms due to the rubber material and is pressed into the housing positioning hole 8a. After being fully pressed, the shock absorber sleeve 3 returns to its original shape, and the disc flanges are located outside the housing positioning hole.

Claims

1. A mechanism for pressing and mounting shock absorber sleeves on an automotive steering gear housing, characterized in that: The system includes a vertical cylinder (2), a cylinder control switch (7), a steering gear housing positioning device, and a shock absorber sleeve positioning shaft (9). The steering gear housing positioning device includes a base plate (1), two housing positioning brackets (6) spaced apart on the base plate (1), a housing positioning hole support cylinder (4), and a housing positioning shaft (10). The shock absorber sleeve positioning shaft (9) and the housing positioning shaft (10) are coaxially fixed together and are floatingly mounted in the housing positioning hole support cylinder (4) by a spring. The two housing positioning brackets (6) are used to support the steering gear from below. At the left and right ends of the steering gear housing (8), the housing positioning hole support cylinder (4) is used to support the lower end face of the housing positioning hole (8a) of the steering gear housing (8). At this time, the housing positioning hole (8a) can be fitted onto the housing positioning shaft (10), and the shock absorber sleeve (3) can be fitted onto the shock absorber sleeve positioning shaft (9). The vertical cylinder (2) is installed on the base plate (1) through the cylinder mounting seat (5) and is located directly above the shock absorber sleeve positioning shaft (9), thereby ensuring the coaxiality of the shock absorber sleeve (3) with the housing positioning hole (8a) of the steering gear housing (8) when it is pressed.

2. The automotive steering gear housing shock absorber press-fitting mechanism according to claim 1, characterized in that: The housing positioning bracket (6) is L-shaped in general. The horizontal part is installed on the base plate (1) by screws, and the top thickness of the vertical part matches the groove width of the annular groove at the end of the steering gear housing (8).

3. The automotive steering gear housing shock absorber press-fitting mechanism according to claim 1, characterized in that: The cylinder mounting base (5) and the housing positioning hole support cylinder (4) are located on the rear side of the two housing positioning brackets (6).

4. The automotive steering gear housing shock absorber press-fitting mechanism according to claim 3, characterized in that: The cylinder control switch (7) is centered on the left and right sides, located in front of the two housing positioning brackets (6).

5. The automotive steering gear housing shock absorber press-fitting mechanism according to claim 1, characterized in that: The housing positioning hole support cylinder (4) is a cylindrical cylinder and is coaxial with the shock-absorbing sleeve positioning shaft (9).

6. The automotive steering gear housing shock absorber sleeve press-fitting mechanism according to claim 1, characterized in that: The cylinder mounting base (5) is in the shape of a "7". The vertical cylinder (2) is mounted on the top of the cylinder mounting base (5). The cylinder mounting base (5) is welded to the base plate (1).

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