CN105772844A - Vertical hole push broaching machine for steering knuckle bushes - Google Patents

Abstract

The invention proposes a vertical steering knuckle bushing hole pushing machine, which includes a machine base, two parallel guide rails are arranged in the middle of the machine base, and the opposite ends of the two guide rails are boss structures; a slide table is arranged between the two guide rails, There is a connecting block inside the sliding table, and the first hydraulic cylinder is installed horizontally at the right end of the connecting block, and the first hydraulic cylinder is fixed on the machine base; a positioning sleeve is arranged on the outside of the sliding table; a second hydraulic cylinder is vertically installed on the upper end of the machine base, and the second A connecting sleeve is provided on the piston rod of the hydraulic cylinder, a push knife locking sleeve is provided outside the connecting sleeve, a first spring is provided between the upper end surface of the pushing knife locking sleeve and the connecting sleeve, and a pushing knife is arranged inside the pushing knife locking sleeve; There is a pull block corresponding to the big end of the push knife locking sleeve, and the pull block is fixed on the machine base; the first guide sleeve and the sliding sleeve are correspondingly arranged under the push knife downward, the first guide sleeve is fixed on the machine base, and the slide sleeve is fixed on the machine base. A second guide sleeve is provided outside the sleeve, and a second spring is provided at the bottom of the sliding sleeve. The second spring is placed in the second guide sleeve, and the second guide sleeve is fixed on the machine base.

Description

Vertical Steering Knuckle Bushing Pushing Machine

technical field

The invention relates to a hole pushing machine used in the process of pushing the inner hole of the bushing of the steering knuckle assembly of the automobile front axle, belonging to the field of processing equipment for the inner hole of the automobile bushing.

Background technique

In the assembly process of the steering knuckle assembly of the front axle of the automobile, two bushes need to be installed, and then the inner holes of the two bushes are pushed.

Existing automobile front axle steering knuckle assembly bushing push holes are mostly processed by horizontal hole punching machines. Because the horizontal hole punching machines occupy a large area, it is not conducive to assembly line installation, and each time the hole pushing has to be done again. The installation of push knives will increase the labor intensity of workers, reduce production efficiency, and affect enterprise benefits.

Contents of the invention

In order to improve the hole pushing efficiency of the automobile steering knuckle bushing, the invention proposes a hole pushing machine used in the process of pushing the inner hole of the steering knuckle assembly bushing of the automobile front axle.

For this reason, the technical solution of the present invention is: a vertical steering knuckle bushing pushing machine, including a machine base, which is a semi-enclosed frame structure, characterized in that two parallel guide rails are longitudinally arranged in the middle of the machine base, and the two The 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 sliding tables corresponding to the boss structures of the guide rails are respectively provided at the upper and lower ends of the slide table. When assembling, the slide table can move left and right along the guide rail by snapping the boss end of the guide rail into the slide groove of the slide table. A connecting block is arranged inside the slide table. The right end of the connecting block is horizontally provided with a first hydraulic cylinder. The piston rod of the cylinder passes through the connecting block from the center, and the first hydraulic cylinder is fixed on the machine base; a positioning sleeve is provided on the outside of the slide table;

There is a second hydraulic cylinder vertically on the upper end of the machine base, a connecting sleeve is provided on the piston rod of the second hydraulic cylinder, and a push knife locking sleeve is arranged outside the connecting sleeve. The push knife locking sleeve is an inverted boss structure, and the push knife is locked. A first spring is provided between the upper end surface of the sleeve and the connecting sleeve, and a push knife is provided in the push knife locking sleeve; a pull block is correspondingly provided under the big end of the push knife lock sleeve, and the pull block is fixed on the machine base; The first guide sleeve and the sliding sleeve are correspondingly arranged downwards under the knife. The sliding sleeve and the first guide sleeve are located under the pulling block. The first guide sleeve is fixed on the machine base. The second guide sleeve is arranged outside the sliding sleeve. The bottom is also provided with a second spring, the second spring is placed in the second guide sleeve, and the second guide sleeve is fixed on the machine base.

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 machine base, so that the positioning sleeve It can 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:

The frame of the hole pushing machine is divided into two different functional areas from left to right. The left side of the frame is the loading and unloading station of the steering knuckle assembly, and the right side of the frame is the hole pushing station of the steering knuckle assembly bushing.

When in use, the operator starts the first hydraulic cylinder to run left, the first hydraulic cylinder drives the sliding table to move leftward along the guide rail of the machine base through the connecting block, and the sliding table drives the positioning sleeve to the steering knuckle assembly 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 positioning sleeve reaches the loading and unloading station of the steering knuckle assembly, the first hydraulic cylinder stops running, and the operator will install the double bushing The steering knuckle assembly is hoisted and put into the positioning sleeve, and the steering knuckle assembly is positioned and installed through one hole and one pin on one side, and then the push knife is inserted into the inner hole of the push knife locking sleeve, and the steel ball on the push knife locking sleeve Press the push knife tightly, and then start the first hydraulic cylinder to move to the right button, the first hydraulic cylinder drives the sliding table to move to the right, and the sliding table drives the steering knuckle assembly to push the hole of the steering knuckle assembly bushing on the right side of the machine base When the right stopper on the sliding table touches the right limit screw on the machine base, the steering knuckle assembly reaches the position of pushing the hole of the bushing of the steering knuckle assembly, and the first hydraulic cylinder stops running; the operator starts the second Two hydraulic cylinders, the second hydraulic cylinder moves downward, pushes the push knife into the two bushes on the steering knuckle assembly, and pushes the inner holes of the two bushes; after the hole pushing process is completed, the second hydraulic cylinder continues Moving downward, the lower end surface of the large end of the push knife lock sleeve contacts the upper end surface of the pull block to push the pull block to rotate counterclockwise. At this time, the push knife lock sleeve receives the upward force of the pull block, so that the push knife lock sleeve The first spring at the upper end shrinks and compresses, and the push knife lock sleeve overcomes the force of the first spring and moves upward relative to the push knife. With the increase of the force of the first spring, the push knife is separated from the push knife lock sleeve, and the push knife The knife falls into the sliding sleeve and the second guiding sleeve along the first guide sleeve under its own gravity. During this process, the locking sleeve of the push knife pushes the pulling block to rotate counterclockwise 90 degrees; it is detected that the push knife enters the inner hole of the sliding sleeve After the middle, the second hydraulic cylinder stops running, and the push knife continues to move downward under its own gravity until the gravity of the push knife and the sliding sleeve is equal to the force of the second spring, and the push knife and the sliding sleeve are separated from the steering knuckle assembly At this time, the operator activates the left button of the first hydraulic cylinder, and the first hydraulic cylinder drives the steering knuckle assembly to move to the left to reach the loading and unloading station of the steering knuckle assembly on the left side of the machine base. The first hydraulic cylinder After in place, start the second hydraulic cylinder, and the second hydraulic cylinder continues to run downward to drive the push knife locking sleeve to press the push knife. When the push knife is pressed, the second hydraulic cylinder moves upward to bring the push knife back to its original position. During this process, the locking sleeve of the push knife is rotated 90 degrees clockwise against the pull block to return to the initial position; at this point, the process of pushing the inner hole of the bushing of the steering knuckle assembly is completed, and the operator lifts the steering knuckle assembly away and enters the The next push inner hole process cycle.

Beneficial effect:

In the present invention, two guide rails are arranged in the middle of the machine base, a horizontal hydraulic cylinder is installed between the two guide rails, a slide table is connected to the horizontal hydraulic cylinder, a positioning sleeve is arranged on the slide table, and the steering knuckle assembly is fixed on the positioning sleeve during use, so that It can move left and right on the machine base; at the same time, a push knife is installed on the machine base through a vertical hydraulic cylinder, and a pulling block and a sliding sleeve are installed correspondingly under the push knife to realize the synchronous push hole processing of the push knife on the bushing of the steering knuckle assembly. After the push hole is completed, the tool is automatically connected. The hole pushing machine adopts a three-dimensional arrangement, and concentrates multiple stations on one machine, which reduces the occupied space, saves costs, and realizes automatic knife receiving, thereby reducing labor intensity of workers, saving working hours, and improving operating 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. cylinder support; 9. Connecting sleeve; 10. Push knife locking sleeve; 11. First spring; 12. Push knife; 13. Pull block; 14. First guide sleeve; 15. Sliding sleeve; 16. Second guide sleeve; 17. Second Spring; 18, left block; 19, right limit screw; 20, screw hole; 21, steering knuckle assembly.

detailed description

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

As shown in Fig. 1, Fig. 2 and Fig. 3, a vertical steering knuckle bushing punching 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. In the middle of the machine base 1, two parallel guide rails 2 are longitudinally fixed and connected by bolts. When installing, the two mutually parallel guide rails 2 are vertically arranged in the upper and lower positions, and the lower end surface of the upper guide rail is aligned with the The upper end surface of the lower guide rail is a boss structure; a slide table 3 is installed between the two guide rails, and the upper and lower ends of the slide table 3 are respectively provided with chute corresponding to the boss structure of the guide rail. At this time, the slide table 3 can move left and right along the guide rail by correspondingly clamping the boss end of the guide rail in the slide groove of the slide table; A first hydraulic cylinder 5, the first hydraulic cylinder 5 is arranged horizontally, when assembling, the piston rod of the first hydraulic cylinder 5 passes through the connecting block from the center of the connecting block 4, and the piston rod of the first hydraulic cylinder 5 passes through the connecting block The nut is fixed on the left end of the connection block 4, and the cylinder body of the first hydraulic cylinder 5 is fixed on the middle part of the machine base 1 through the connection plate; a positioning sleeve 6 is fixedly connected to the outer end surface of the slide table 3 by bolts for fixing Steering knuckle assembly; at the same time, a second hydraulic cylinder 7 is vertically installed on the upper end of the machine base 1. During assembly, the cylinder body of the second hydraulic cylinder 7 is fixed on the cylinder bracket 8 by screws, and then the cylinder bracket 8 is fixed by bolts On the base 1; a connecting sleeve 9 is fixedly connected to the front end of the piston rod of the second hydraulic cylinder 7 through a threaded connection, and a push knife locking sleeve 10 is fixedly connected to the outside of the connecting sleeve 9 through a threaded connection. The knife lock sleeve 10 is an inverted boss structure with a large upper end and a small lower end. When assembling, a first spring 11 is installed between the upper end surface of the push knife lock sleeve 10 and the connecting sleeve 9, and the first spring 11 is set on the connecting sleeve. 9, a push knife 12 is plugged into the inner hole of the push knife lock sleeve 11, and the push knife 12 is compressed by the steel ball in the inner hole of the push knife lock sleeve 11; A puller block 13 is correspondingly installed below the end, and the puller block 13 is fixedly connected to the machine base 1 through a connecting plate; a first guide sleeve 14 and a sliding sleeve 15 are respectively installed from top to bottom below the push knife 12 , the upper port of the first guide sleeve 14 corresponds to the lower end of the push knife 12, the upper port of the sliding sleeve 15 corresponds to the lower port of the first guide sleeve 14, and the sliding sleeve 15 and the first guide sleeve 14 are located on the puller block 13 Bottom: When assembling, the first guide sleeve 14 is fixedly connected to the machine base 1 through the connecting plate, a second guide sleeve 16 is sleeved outside the sliding sleeve 15, and a second spring 17 is placed at the bottom of the sliding sleeve 15 , and put the lower end of the second spring on the screw rod in the inner hole of the second guide sleeve 16, then fix the sliding sleeve 15 and the end face of the second guide sleeve 16 by bolts, and finally connect the second guide sleeve 16 through the connecting plate on the base.

As shown in Figure 1 and Figure 3, in order to facilitate positioning, a left stopper 18 is fixedly connected to the left end of the slide table 3 by bolts, and a right stopper 18 is fixedly connected to the right end of the slide table 3 by bolts. The inner side of the left end of 1 is correspondingly fixed with a left limit screw, and the inner side of the right end of the support 1 is correspondingly fixed with a right limit screw 19, so that the positioning sleeve 6 can be accurately positioned on the guide rail, so as to ensure the machining accuracy.

As shown in Fig. 1 and Fig. 2, in order to facilitate fixing, screw holes 20 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 leftward movement button of the first hydraulic cylinder, and the first hydraulic cylinder drives the sliding table to move left along the guide rail of the machine base through the connecting block, and the sliding table drives the positioning sleeve to the steering knuckle assembly 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 positioning sleeve reaches the loading and unloading station of the steering knuckle assembly, the first hydraulic cylinder stops running, and the operator will install the double bushing hoist the steering knuckle assembly 21 into the positioning sleeve 6, position and install the steering knuckle assembly through one hole and one pin on one side (as shown in Figure 4), and then insert the push knife into the inner hole of the push knife locking sleeve , the two symmetrical steel balls in the inner hole of the push knife locking sleeve press the push knife tightly, at this time, start the first hydraulic cylinder to move to the right button, the first hydraulic cylinder drives the sliding table to move to the right, and the sliding table drives the steering knuckle assembly Move to the push hole station of the steering knuckle assembly bushing on the right side of the machine base. When the right stopper on the sliding table touches the right limit screw on the machine base, the steering knuckle assembly reaches the push hole of the steering knuckle assembly bushing. Station, the first hydraulic cylinder stops running; the operator starts the second hydraulic cylinder, the second hydraulic cylinder moves downward, pushes the push knife into the two bushes on the steering knuckle assembly, and pushes the inner holes of the two bushes Hole processing; after the hole pushing process is completed, the second hydraulic cylinder continues to move downward, and the lower end surface of the large end of the push knife locking sleeve contacts the upper end surface of the pulling block to push the pulling block to rotate counterclockwise. At this time, the pushing knife locking sleeve Under the upward force of the pulling block, the first spring on the upper end of the push knife locking sleeve shrinks and compresses, and the push knife locking sleeve overcomes the force of the first spring and moves upward relative to the push knife. Increase, the push knife is separated from the push knife locking sleeve, and the push knife falls into the sliding sleeve and the second guide sleeve along the first guide sleeve under its own gravity. The hour hand rotates 90 degrees; after detecting that the push knife enters the inner hole of the sliding sleeve, the second hydraulic cylinder stops running, and the push knife continues to move downward under the action of its own gravity, until the gravity of the push knife and the sliding sleeve and the action of the second spring When the forces are equal, the push knife and the sliding sleeve are separated from the steering knuckle assembly and reach the lower end of the machine base; at this time, the operator activates the left button of the first hydraulic cylinder, and the first hydraulic cylinder drives the steering knuckle assembly to move to the left to reach the left side of the machine base. The steering knuckle assembly loading and unloading station, after the first hydraulic cylinder is in place, start the second hydraulic cylinder, the second hydraulic cylinder continues to run downwards to drive the push knife locking sleeve to press against the push knife, when the push knife is pressed, The second hydraulic cylinder moves upwards to bring the push knife back to its original position. During this process, the push knife lock sleeve rotates 90 degrees clockwise against the pull block to return to the initial position; at this point, the steering knuckle assembly bush pushes the inner hole After the process is completed, the operator lifts the steering knuckle assembly away and enters the next process cycle of pushing the inner hole.

In the present invention, two guide rails are arranged in the middle of the machine base, a horizontal hydraulic oil cylinder is installed between the two guide rails, a slide table is connected to the horizontal hydraulic oil cylinder, a positioning sleeve is arranged on the slide table, and the steering knuckle assembly is fixed on the positioning sleeve during use, so that It can move left and right on the machine base; at the same time, a push knife is installed on the machine base through a vertical hydraulic cylinder, and a pulling block and a sliding sleeve are installed correspondingly under the push knife to realize the synchronous push hole processing of the push knife on the bushing of the steering knuckle assembly. After the push hole is completed, the tool is automatically connected. The hole pushing machine adopts a three-dimensional arrangement, and concentrates multiple stations on one machine, which reduces the occupied space, saves costs, and realizes automatic knife receiving, thereby reducing labor intensity of workers, saving working hours, and improving operating efficiency.

Claims (3)

1. Vertical steering knuckle bushing hole pushing machine, including machine base, the machine base is a semi-closed frame structure, characterized in that: there are two parallel guide rails longitudinally in the middle of the machine base, and the two parallel guide rails are longitudinally arranged up and down. 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 corresponding to the boss structure of the guide rails. When assembling, the guide rails are convex The end of the table is correspondingly snapped into the chute of the slide table so that the slide table can move left and right along the guide rail. There is a connecting block inside the slide table. The right end of the connecting block is horizontally provided with a first hydraulic cylinder. The piston rod of the first hydraulic cylinder passes through the connection from the center. Block, the first hydraulic cylinder is fixed on the machine base; there is a positioning sleeve on the outside of the slide table; There is a second hydraulic cylinder vertically on the upper end of the machine base, a connecting sleeve is provided on the piston rod of the second hydraulic cylinder, and a push knife locking sleeve is arranged outside the connecting sleeve. The push knife locking sleeve is an inverted boss structure, and the push knife is locked. A first spring is provided between the upper end surface of the sleeve and the connecting sleeve, and a push knife is provided in the push knife locking sleeve; a pull block is correspondingly provided under the big end of the push knife lock sleeve, and the pull block is fixed on the machine base; The first guide sleeve and the sliding sleeve are correspondingly arranged downwards under the knife. The sliding sleeve and the first guide sleeve are located under the pulling block. The first guide sleeve is fixed on the machine base. The second guide sleeve is arranged outside the sliding sleeve. The bottom is also provided with a second spring, the second spring is placed in the second guide sleeve, and the second guide sleeve is fixed on the machine base. 2. The vertical steering knuckle bushing hole pushing machine according to claim 1, characterized in that: stoppers are respectively provided on the left and right ends of the slide table, corresponding to the inner sides of the left and right ends of the machine base. There are limit screws so that the positioning sleeve can be positioned accurately on the guide rail. 3. The vertical steering knuckle bushing hole pushing 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.