CN105773110A - Steering knuckle bushing press fitting machine - Google Patents

Abstract

The invention proposes a steering knuckle bushing press-fitting machine, which includes a machine base, which is divided into three installation areas from top to bottom: the upper part, the middle part and the lower part; The parallel guide rails are arranged vertically up and down, and the opposite ends of the two guide rails are boss structures; there is a slide table between the two guide rails, and the upper and lower ends of the slide table are respectively provided with chute, and the inner side of the slide table is provided with a connecting block , the right end of the connecting block is horizontally equipped with a first hydraulic cylinder, the first hydraulic cylinder is fixed in the middle of the machine base, and a positioning sleeve is provided on the outside of the sliding table; the front ends of the upper installation area and the lower installation area of the machine base are respectively provided with a second hydraulic cylinder vertically and the third hydraulic cylinder, an upper pressure head is provided at the front end of the piston rod of the second hydraulic cylinder, and a lower pressure head is provided at the front end of the piston rod of the third hydraulic cylinder. The press-fitting machine can complete the simultaneous press-fitting of two bushes at one time, which reduces the loss of the bushes caused by human factors, reduces production costs, ensures the depth of press-fitting, and improves the assembly quality.

Description

Steering knuckle bushing press machine

technical field

The invention relates to a press-fitting machine used in the installation process of the steering knuckle assembly bushing of the automobile front axle, belonging to the field of automobile manufacturing equipment.

Background technique

In the assembly process of the steering knuckle assembly of the automobile front axle, two bushes need to be installed.

The installation of existing automobile front axle steering knuckle assembly bush generally adopts two kinds of methods: a kind of is manually knocked and installed, and another kind is mechanically press-fitted. There are artificial uncertain factors such as the size and uniformity of the knocking force and the difficulty of controlling the knocking force, and the depth of the pressing is difficult to grasp, and it is easy to cause early damage to the bushing during the assembly process, resulting in early failure after assembly of the vehicle; using mechanical pressing For installation, only one bushing can be pressed in at a time, which is inefficient and affects the benefits of the enterprise. Therefore, the existing two bushing press-fitting methods have been unable to meet the needs of mass production of automobiles.

Contents of the invention

In order to improve the pressing quality and assembly efficiency of the steering knuckle assembly bushing of the automobile front axle, the invention proposes a pressing machine used in the installation process of the steering knuckle assembly bushing of the automobile front axle.

For this reason, the technical solution of the present invention is: the steering knuckle bushing press-fitting machine, including the machine base, the machine base is a semi-closed frame structure, characterized in that: the machine base is divided into upper part, middle part and lower part from top to bottom Three installation areas; there are two parallel guide rails vertically arranged in the middle installation area of the machine base, and the two parallel guide rails are vertically arranged up and down, and the opposite ends of the two guide rails are boss structures; there is a sliding platform between the two guide rails The upper and lower ends of the slide table are respectively provided with chute corresponding to the boss structure of the guide rail. During assembly, the slide table can move left and right along the guide rail by snapping the boss end of the guide rail into the chute of the slide table. There is a connecting block on the inner side of the table, and the first hydraulic cylinder is arranged horizontally at the right end of the connecting block. The piston rod of the first hydraulic cylinder passes through the connecting block from the center. A positioning sleeve is provided; the front end of the upper installation area and the lower installation area of the machine base are respectively provided with a second hydraulic cylinder and a third hydraulic cylinder vertically, the front end of the piston rod of the second hydraulic cylinder is provided with an upper pressure head, and the piston of the third hydraulic cylinder The front end of the rod is provided with a pressing head.

An improvement to the above technical solution is: for the convenience of positioning, stoppers are respectively provided on the left and right ends of the slide table, and limit screws are respectively provided on the inner sides of the left and right ends of the installation area in the middle of the machine base, so as to It enables the positioning sleeve to be precisely positioned on the guide rail.

A further improvement to the above technical solution is: for the convenience of fixing, screw holes for fixed connection with the ground are respectively provided at both ends of the bottom of the machine base.

Instructions:

When in use, the operator activates the rightward movement button of the first hydraulic cylinder, the piston rod of the first hydraulic cylinder drives the slide table to move to the right, and the slide table drives the positioning sleeve to move to the steering knuckle installation and blanking station on the right side of the machine base; when the slide When the right stopper on the table touches the right limit screw, the positioning sleeve reaches the steering knuckle installation and blanking station, the first hydraulic cylinder stops running, and the operator puts the steering knuckle in the positioning sleeve for installation; after installation, Fix the steering knuckle on the positioning sleeve through one hole and one pin on one side, and then start the first hydraulic cylinder to move to the left button, the piston rod of the first hydraulic cylinder pushes the sliding table to move to the left, and the sliding table drives the steering knuckle to turn to the left of the machine base The knuckle bush pressing station moves; when the left stopper on the sliding table touches the left limit screw, the steering knuckle reaches the steering knuckle bush pressing station, the first hydraulic cylinder stops running, and the operator puts the two bushings together. Put them on the upper and lower pressure heads respectively, and start the second hydraulic cylinder and the third hydraulic cylinder at the same time, the piston rod of the second hydraulic cylinder drives the upper pressure head to move downward, and the piston rod of the third hydraulic cylinder drives the lower pressure head upward Move, respectively press the two bushes into the steering knuckle at the same time; after the detection switch detects the signal that the two bushes are pressed in place, the second hydraulic cylinder and the third hydraulic cylinder return to the initial position; finally start the first hydraulic cylinder Run the button to the right, and the piston rod of the first hydraulic cylinder drives the steering knuckle assembly installed on the slide table to move to the right to reach the knuckle installation and blanking station on the right side of the machine base. After positioning the positioning sleeve, use the sling The steering knuckle assembly is hoisted out of the positioning sleeve to complete the press-fitting process of the two bushes and enter the next bushing press-fitting cycle.

Beneficial effect:

In the present invention, a horizontal hydraulic cylinder is arranged in the middle of the machine base, and a sliding table is connected to the horizontal hydraulic cylinder, and a positioning sleeve is arranged on the sliding table; at the same time, a vertical hydraulic cylinder is respectively arranged at the upper and lower ends of the machine base, and the two vertical hydraulic cylinders are The upper and lower pressure heads are respectively installed. When in use, the steering knuckle is first placed on the knuckle installation and unloading station on one side of the machine base for installation, and then the installed steering knuckle is pushed to the other side of the machine base by the horizontal hydraulic cylinder. The steering knuckle bush press-fitting station starts two vertical hydraulic cylinders at the same time, and the two vertical hydraulic cylinders respectively drive the two pressure heads to move, thereby pressing the two bushes that have been set on the two pressure heads into the steering knuckle. This press-fitting machine replaces the manual knock-fitting method of the original bushing, and can complete the simultaneous press-fitting of two bushes at one time, which reduces the loss caused by human factors in the bushing installation process, reduces production costs, reduces noise pollution, Improve the working environment; at the same time ensure the depth of pressing and improve the quality of assembly. The use of this equipment reduces the labor intensity of workers, saves working hours and improves work efficiency.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is the left view of the present invention;

Fig. 3 is the top view of the present invention;

Fig. 4 is the structural representation of part 6 in Fig. 1;

The labels in the figure are: 1. machine base; 2. guide rail; 3. slide table; 4. connection block; 5. first hydraulic cylinder; 6. positioning sleeve; 7. second hydraulic cylinder; 8. third hydraulic cylinder; 9. Oil cylinder support; 10. Connecting rod; 11. Upper pressure head; 12. Lower pressure head; 13. Left baffle; 14. Right limit screw; 15. Screw hole; 16. Steering knuckle.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4, a steering knuckle bushing press-fitting machine includes a machine base 1, and the machine base 1 is fixedly connected to a support plate with holes by bolts outside a cuboid frame. A semi-enclosed frame; the machine base 1 is divided into three installation areas of the upper part, the middle part and the lower part from top to bottom; the middle installation area of the machine base 1 is longitudinally fixed and connected with two parallel guide rails 2 by bolts, During installation, two mutually parallel guide rails 2 are vertically arranged in up and down positions, and the lower end surface of the upper guide rail and the upper end surface of the lower guide rail are both boss structures; a slide table 3 is installed between the two guide rails, and the slide table The upper and lower ends of 3 are provided with chute corresponding to the boss structure of the guide rail respectively. When assembling, the boss end of the guide rail is correspondingly snapped into the chute of the slide table so that the slide table 3 can move left and right along the guide rail; The inner end surface of the slide table 3 is fixedly connected to a connecting block 4 by bolts, and a first hydraulic cylinder 5 is connected to the right end of the connecting block 4. The first hydraulic cylinder 5 is arranged horizontally. When assembling, the piston of the first hydraulic cylinder 5 The rod passes through the connecting block from the center of the connecting block 4, and the piston rod shaft head of the first hydraulic cylinder 5 is fixed on the left end of the connecting block 4 through a nut, and the cylinder body of the first hydraulic cylinder 5 is fixed on the machine through the connecting plate. The middle part of the middle installation area of the seat 1; a positioning sleeve 6 is fixedly connected to the outer end surface of the slide table 3 by bolts; at the same time, a second hydraulic cylinder is respectively installed on the front ends of the upper installation area and the lower installation area of the machine base 1 7 and a third hydraulic cylinder 8, the second hydraulic cylinder 7 and the third hydraulic cylinder 8 are arranged vertically relative to each other. When assembling, the cylinder body of the second hydraulic cylinder 7 is fixed on the cylinder support 9 by screws, and then the cylinder The support 9 is fixed on the machine base 1 by bolts, and the third hydraulic cylinder 8 is fixed on the machine base 1 in the same way; finally, a connecting rod 10 is fixedly connected to the lower end of the piston rod of the second hydraulic cylinder 7 by threaded connection. , the lower end of the connecting rod 10 is fixedly connected with the upper pressing head 11 through a threaded connection, and the upper end of the piston rod of the third hydraulic cylinder 8 is fixedly connected with the lower pressing head 12 through a same connecting rod.

As shown in Figure 1 and Figure 3, in order to facilitate positioning, a left stopper 13 is fixedly connected to the left end of the slide table 3 by bolts, and a right stopper 13 is fixedly connected to the right end of the slide table 3 by bolts. 1 The inner side of the left end of the middle installation area is correspondingly fixed with a left limit screw, and the inner side of the right end of the middle installation area of the machine base 1 is correspondingly fixed with a right limit screw 14, so that the positioning sleeve 6 can be accurately positioned on the guide rail, so as to ensure the steering The assembly accuracy of the section on the two stations.

As shown in Fig. 1 and Fig. 2, in order to facilitate fixing, screw holes 15 for fixed connection with the ground are respectively reserved at the left and right ends of the bottom of the base 1, and the press machine is fixed on the ground by screws during use.

When in use, the operator activates the rightward movement button of the first hydraulic cylinder, the piston rod of the first hydraulic cylinder drives the slide table to move to the right, and the slide table drives the positioning sleeve to move to the steering knuckle installation and blanking station on the right side of the machine base; when the slide When the right stopper on the table touches the right limit screw on the machine base, the positioning sleeve reaches the steering knuckle installation and blanking station, the first hydraulic cylinder stops running, and the operator puts the split body of the steering knuckle 16 on the positioning sleeve Install it in (as shown in Figure 4); after installation, fix the steering knuckle on the positioning sleeve through one hole and one pin on one side, and then start the left running button of the first hydraulic cylinder, and the piston rod of the first hydraulic cylinder pushes the sliding table Moving to the left, the sliding table drives the steering knuckle to move to the knuckle bush press-fitting station on the left side of the machine base; when the left stopper on the sliding table touches the left limit screw on the machine base, the steering knuckle assembly reaches the steering knuckle Bushing press-fitting station, the first hydraulic cylinder stops running, the operator sets the two bushes on the upper and lower pressure heads respectively, and starts the second hydraulic cylinder and the third hydraulic cylinder at the same time, the second hydraulic cylinder The piston rod drives the upper pressure head to move downward, and the piston rod of the third hydraulic cylinder drives the lower pressure head to move upward, respectively press the two bushes into the steering knuckle at the same time (as shown in Figure 2); the detection switch detects that the two bushes are After pressing the signal in place, the second hydraulic cylinder and the third hydraulic cylinder return to the initial position; finally start the first hydraulic cylinder to run the right button, and the piston rod of the first hydraulic cylinder drives the steering knuckle assembly installed on the slide table. Move to the right to reach the steering knuckle installation and blanking station on the right side of the machine base. After positioning the positioning sleeve, the operator lifts the steering knuckle assembly out of the positioning sleeve with a hoist to complete the two bushings of the steering knuckle assembly. The press-fitting process enters the next bushing press-fitting cycle.

In the present invention, a horizontal hydraulic oil cylinder is arranged in the middle of the machine base, and a sliding table is connected to the horizontal hydraulic oil cylinder, and a positioning sleeve is arranged on the sliding table; at the same time, a vertical hydraulic oil cylinder is respectively arranged at the upper and lower ends of the machine base, and the two vertical hydraulic oil cylinders are The upper and lower pressure heads are respectively installed. When in use, first place the steering knuckle on the knuckle installation and blanking station on the right side of the machine base for installation, and then push the installed steering knuckle to the steering knuckle on the left side of the machine base by the horizontal hydraulic cylinder. The knuckle bush press-fitting station starts two vertical hydraulic cylinders at the same time, and the two vertical hydraulic cylinders respectively drive the two pressure heads to move, so that the two bushes that have been set on the two pressure heads are pressed into the steering knuckle, and finally the first hydraulic pressure The oil cylinder drags the installed steering knuckle assembly to the right side of the machine base for unloading. This press-fitting machine replaces the manual knock-fitting method of the original bushing, and can complete the simultaneous press-fitting of two bushes at one time, which reduces the loss caused by human factors in the bushing installation process, reduces production costs, reduces noise pollution, Improve the working environment; at the same time ensure the depth of pressing and improve the quality of assembly. The use of this equipment reduces the labor intensity of workers, saves working hours and improves work efficiency.

Claims (3)

1. Steering knuckle bushing press-fitting machine, including machine base, which is a semi-closed frame structure, characterized in that: the machine base is divided into three installation areas, upper, middle and lower, from top to bottom; There are two parallel guide rails longitudinally in the middle installation area, the two parallel guide rails are vertically arranged up and down, and the opposite ends of the two guide rails are boss structures; there is a slide table between the two guide rails, and the upper and lower ends of the slide table The chute corresponding to the boss structure of the guide rail is respectively provided. When assembling, the boss end of the guide rail is correspondingly snapped into the chute of the slide table so that the slide table can move left and right along the guide rail. A connecting block is provided on the inner side of the slide table. The right end of the block is provided with a first hydraulic cylinder horizontally, and the piston rod of the first hydraulic cylinder passes through the connecting block from the center. The front end of the upper installation area and the lower installation area are vertically provided with a second hydraulic cylinder and a third hydraulic cylinder respectively, the front end of the piston rod of the second hydraulic cylinder is provided with an upper pressure head, and the front end of the piston rod of the third hydraulic cylinder is provided with a lower pressure head. 2. The steering knuckle bush press-fitting machine according to claim 1, characterized in that: stoppers are respectively provided at the left and right ends of the slide table, corresponding to the inner sides of the left and right ends of the installation area in the middle of the machine base. There are limit screws so that the positioning sleeve can be positioned accurately on the guide rail. 3. The steering knuckle bush pressing machine according to claim 1, characterized in that screw holes for fixed connection with the ground are respectively provided at both ends of the bottom of the machine base.