CN215942223U

CN215942223U - High-efficient anchor clamps of knuckle machining center

Info

Publication number: CN215942223U
Application number: CN202121244139.2U
Authority: CN
Inventors: 陈天武; 左宗岱; 章建国
Original assignee: Anhui Anhuang Machinery Co ltd
Current assignee: Anhui Anhuang Machinery Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-03-04
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a high-efficiency clamp for a steering knuckle machining center, in particular to a novel clamp for machining surfaces and holes such as an upper ball pin, a lower ball pin, a pull rod, ABS (anti-lock brake system) and the like by taking a steering knuckle journal part as a reference, wherein the clamp disclosed by the utility model replaces a traditional fixed or hydraulic clamping clamp which is compacted by a pressing plate in multiple processes, and the multiple processes are machined after one-time clamping, so that the production efficiency and the product percent of pass are improved; the utility model can realize one-time clamping, the workbench turns according to different angles, the system error generated by multiple times of clamping is eliminated, the clamping times and the cutter replacement times are reduced, especially, the one-time clamping can realize multi-part processing, the processing precision is ensured, the processing efficiency and the product quality are improved, the production cost is greatly reduced, and the economic benefit is obvious.

Description

High-efficient anchor clamps of knuckle machining center

Technical Field

The utility model relates to the technical field of clamps and machining, in particular to a high-efficiency clamp for a knuckle machining center.

Background

The steering knuckle is a key part of a steering system and is an important safety part, when the steering knuckle works, the steering knuckle is not allowed to break in the service life under the action of variable bending fatigue loads, and the strength and the reliability of the steering knuckle are related to the safety of passengers. With the improvement of the technical level of automobiles in China and the improvement of automobile safety regulations, the demand of high-strength and high-reliability steering knuckles in passenger cars, particularly SUVs, pickup trucks and commercial cars, is increasing.

The existing shaft steering knuckle is processed by firstly processing a shaft neck milling end face, then positioning by the shaft neck, processing an upper ball pin, a pull rod, a lower ball pin, ABS and the like in different procedures, and has the characteristics that: the machine can realize the processing of each part of a product, but the defect of the machine is particularly obvious under the conditions that the current manufacturing industry is slightly beneficial and the productivity is required to be improved, namely, the multi-process and multi-station processing is realized, an operator clamps a workpiece continuously, the cutter replacing time is wasted, and system errors are easy to generate after multiple times of clamping, the product precision is influenced, the efficiency is low, the rejection rate is high, and the machine is not economical.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency clamp for a steering knuckle machining center, which aims to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a knuckle machining center high efficiency clamp, comprising:

a workpiece;

the connecting plate is positioned at the bottom side of the workpiece and used for supporting the clamp;

the positioning assembly is positioned on one side of the workpiece and used for fixing the position of the workpiece;

and the pressing assembly is positioned at one end of the workpiece and used for clamping and fixing the workpiece.

In the utility model, the workpiece is positioned and fixed through a positioning component and a pressing component on a connecting plate; the fixture is used for processing products, so that the clamping efficiency is effectively improved, the rejection rate of the products is reduced, the tool changing time is saved, the labor intensity of workers is reduced, and the economic benefit is remarkable.

Drawings

FIG. 1 is a schematic structural view of a knuckle machining center clamp;

FIG. 2 is a schematic side view of a knuckle machining center clamp;

FIG. 3 is a schematic top end structure view of a knuckle machining center clamp;

FIG. 4 is a schematic view of a baseplate structure in the knuckle machining center fixture;

FIG. 5 is a schematic view of a tailstock adapter in a knuckle machining center fixture;

FIG. 6 is a schematic structural view of a cylinder pressing pad in a knuckle machining center clamp;

FIG. 7 is a schematic structural view of a rotating plate in a knuckle machining center clamp;

FIG. 8 is a schematic view of a positioning seat structure in a knuckle machining center clamp;

FIG. 9 is a schematic view of a positioning mold core in the knuckle machining center fixture;

FIG. 10 is a schematic view of a cylinder assembly in a clamp of a knuckle machining center;

FIG. 11 is a schematic structural view of a center insert plate of a knuckle machining center fixture;

FIG. 12 is a schematic structural view of a nut in the knuckle machining center clamp;

FIG. 13 is a schematic structural diagram of a pressing plate in the knuckle machining center clamp.

In the figure: the method comprises the following steps of 1-bottom plate, 2-tailstock flange, 3-oil cylinder compression cushion block, 4-rotary plate, 5-positioning seat, 6-positioning mold core, 7-oil cylinder assembly, 8-inserting plate, 9-nut, 10-pressing plate and 11-workpiece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 13, in an embodiment of the present invention, an efficient fixture for a knuckle machining center includes:

a workpiece 11;

the connecting plate is positioned at the bottom side of the workpiece 11 and used for supporting a clamp;

the positioning assembly is positioned on one side of the workpiece 11 and used for fixing the position of the workpiece 11;

and the pressing assembly is positioned at one end of the workpiece 11 and is used for clamping and fixing the workpiece 11.

In this embodiment, the positioning assembly and the pressing assembly are both located on the connecting plate, the workpiece 11 is fixed in position by the positioning assembly, and is limited in degree of freedom by the pressing assembly, and the workpiece 11 is positioned and fixed by the positioning assembly and the pressing assembly on the connecting plate; the fixture is used for processing products, so that the clamping efficiency is effectively improved, the rejection rate of the products is reduced, the tool changing time is saved, the labor intensity of workers is reduced, and the economic benefit is remarkable.

In an embodiment of the present invention, referring to fig. 1 to 7, the connecting plate includes:

the bottom plate 1 is fixedly connected to a machining center equipment workbench;

a tailstock flange 2 which is positioned above the bottom plate 1,

and the rotating plate 4 is connected with the tailstock flange 2 and is used for supporting the positioning assembly and the pressing assembly.

In the embodiment, the bottom plate 1 is used for being fixed with a machining center workbench and connected with a turnover mechanism, oil paths of the rotary plate 4 are all dark oil grids, the whole body is attractive, and scrap iron is prevented from damaging oil pipes; as the clamping pressure and the clamping sequence have requirements, the rotary plate 4 is provided with a hydraulic sequence valve for adjusting the pressure and the clamping sequence.

In an embodiment of the present invention, referring to fig. 8 to 9, the positioning assembly includes:

the positioning seat 5 is positioned on the connecting plate and used for supporting a workpiece 11;

and the positioning die core 6 is positioned on the positioning seat 5 and used for fixing the shaft diameter of the workpiece 11.

In the embodiment, the positioning seat 5 is positioned on the connecting plate, the positioning die core 6 has high requirements on material and precision, is made of Cr12 material, has the quenching hardness of HRC60, has the surface roughness of Ra0.4 after grinding, has long service life and ensures the precision; a positioning seat 5 and a cylinder pressing cushion block 3 are arranged at the angular positioning position of the side arm of the workpiece 11 in a pressing mode; the workpiece 11 and the oil cylinder pressing cushion blocks 3 are divided into two groups and are symmetrical about the middle of the rotary plate 4.

In an embodiment of the present invention, referring to fig. 10 to 13, the pressing assembly includes:

the oil cylinder assembly 7 is positioned at the bottom side of the positioning assembly and used for clamping and fixing the workpiece 11;

the nut 9 is connected with the workpiece 11;

the inserting plate 8 is connected with the nut 9;

and the pressing plate 10 is connected with the oil cylinder assembly 7 and is used for fixing the pull rod and the shock absorber arm of the workpiece 11.

In this embodiment, the hydro-cylinder sub-assembly 7 is located 6 bottoms of location mold core, 7 bottoms of hydro-cylinder sub-assembly are equipped with picture peg 8 and nut 9, location mold core 6, hydro-cylinder sub-assembly 7, positioning seat 5 and hydro-cylinder compress tightly cushion 3 and all install on

gyration board

4, and 4 both sides tip of gyration board are connected with tailstock flange 2, and tailstock flange 2 is connected with tilting mechanism.

In an embodiment of the present invention, referring to fig. 1 to 13, the efficient clamp for a knuckle machining center further includes: the pressing cylinder and the tensioning cylinder are positioned on the connecting plate and are used for positioning and fixing the workpiece 11; the pressing cylinder and the tensioning cylinder are both hydraulic cylinders, and the pressing cylinder is a corner cylinder in the hydraulic cylinders, so that the workpiece 11 can be conveniently lifted up and down.

The working principle in the utility model is as follows:

splicing a steering joint with a processed shaft neck by using a nut 9, then placing the shaft neck into a mold core, simultaneously abutting a side arm of a shock absorber against a positioning screw on a positioning seat 5, inserting an inserting plate 8 onto the nut 9, pressing a hydraulic clamping button at the moment, firstly pressing a pressing cylinder in an oil cylinder pressing cushion block 3 to tightly press the other side of the side arm of the shock absorber, then moving an oil cylinder assembly 7 downwards to lock the shaft neck of a workpiece 11, and finally pressing the pull rod and the front surface of an upper ball pin by using a pressing plate 10, so that all six degrees of freedom of the workpiece 11 are limited; after the workpiece 11 is clamped, a machining center starting button is pressed, the turnover workbench is located at a 0-degree position, an ABS surface and holes are machined, the inner side surface and the outer side surface of the upper ball pin are milled, drilled and reamed according to a certain angle of rotation required by a product, the inner side surface and the outer side surface of the lower ball pin are milled, drilled and reamed according to a certain angle of rotation, and finally the upper surface and the lower surface of the pull rod are milled, drilled and reamed by rotating 90 degrees.

In the utility model, firstly, the left and right parts are processed at one time, and the steering knuckle is processed at different angle positions through the 360-degree hydraulic turnover mechanism, so that the clamping times, the tool changing time, the repeated positioning error, the manual misoperation and the like are reduced, and the processing efficiency, the product percent of pass and the like are improved. Secondly, one device realizes the processing of all procedures of the steering knuckle, the utilization rate of the device is high, and the device investment and the power consumption are reduced. Thirdly, the tool adopts the hydraulic cylinder to automatically clamp and loosen, and the efficiency is at least improved by more than 2 times compared with the traditional mechanical clamping mode. Fourthly, all oil paths adopt hidden oil paths, the tool is overall attractive, the clamping sequence and the pressure can be changed after a hydraulic sequence valve is used, the workpiece 11 is more stable when being clamped, the cutting amount and the processing multiplying power are convenient to improve, and the product percent of pass is controlled within 1%.

The fixture is used for processing products, the clamping efficiency is improved by more than 2 times, the contact area of red lead inspection of the conical surface of the conical hole is larger than 85%, the roughness of the conical hole reaches more than 1.6um, the rejection rate of the products is controlled within the range of 1%, the tool changing time is saved, the labor intensity of workers is reduced, and the economic benefit is remarkable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a high-efficient anchor clamps of knuckle machining center which characterized in that, high-efficient anchor clamps of knuckle machining center include:

a workpiece;

2. The knuckle machining center high efficiency clamp of claim 1, wherein the connecting plate comprises:

the bottom plate is fixedly connected to the machining center equipment workbench;

a tailstock flange positioned above the bottom plate,

and the rotary plate is connected with the tailstock flange and is used for supporting the positioning assembly and the pressing assembly.

3. The knuckle machining center high efficiency clamp of claim 1, wherein the positioning assembly comprises:

the positioning seat is positioned on the connecting plate and used for supporting a workpiece;

and the positioning mold core is positioned on the positioning seat and used for fixing the shaft diameter of the workpiece.

4. The knuckle machining center high efficiency clamp of claim 1, wherein the compression assembly comprises:

the oil cylinder assembly is positioned at the bottom side of the positioning assembly and used for clamping and fixing the workpiece;

a nut connected to the workpiece;

the inserting plate is connected with the nut;

and the pressing plate is connected with the oil cylinder assembly and is used for fixing the pull rod and the shock absorber arm of the workpiece.

5. The knuckle machining center high efficiency clamp of claim 4, further comprising: and the pressing cylinder and the tensioning cylinder are positioned on the connecting plate and are used for positioning and fixing the workpiece.