CN217254733U - Fixing clamp for machining steering knuckle - Google Patents

Abstract

The utility model belongs to the technical field of knuckle processing equipment, a fixing fixture is used in knuckle machining is proposed, including swing hydraulic cylinder, main shaft aircraft nose and locating plate, be provided with a plurality of locating holes on the locating plate, be provided with positioning connection spare in the locating hole, a plurality of locating holes divide into four location punch combination and every location punch combination and include 3 locating holes at least, four location punch combination are first location punch combination respectively, the second location punch combination, third location punch combination and fourth location punch combination and two preceding location punch combination and two back location punch combination are crisscross distribution from top to bottom, be provided with two relative distribution's pressure spring between locating plate and the main shaft aircraft nose, the pressure spring includes the ring body, tooth mouth and fin, the one end that the tooth mouth was kept away from to the fin is the free end, the main shaft aircraft nose is provided with the ring channel that is used for installing the pressure spring towards one side of locating plate. This device reasonable in design, simple structure, stability are higher, have shock-absorbing function and life is longer, are fit for extensive the popularization.

Description

Fixing clamp for machining steering knuckle

Technical Field

The utility model belongs to the technical field of the knuckle processing equipment, a fixing clamp is used in knuckle machine tooling is related to.

Background

The knuckle is a hinge for steering the wheel, and is generally fork-shaped. The steering knuckle is used for transmitting and bearing the front load of the automobile, supporting and driving the front wheel to rotate around the main pin so as to steer the automobile. In a driving state of the vehicle, the knuckle bears a variable impact load, and therefore, the steering knuckle of the vehicle generally has high strength. When the steering knuckle is machined, a positioning and fixing tool is needed to be used for machining a workpiece, the tool for clamping the steering knuckle is generally more complex than a shaft part, and the clamping of body positions needs to be completed in at least two different positioning planes.

At present, the steering knuckle is generally fixed by a positioning plate when being subjected to vertical body position processing, and the positioning plate is subjected to angle adjustment under the action of a main shaft of a swing hydraulic cylinder. However, the existing positioning plate has the problems that the positioning nodes for clamping workpieces are very limited and unreasonably distributed, and the irregular surfaces of the steering knuckles are more, so that the stability of the workpieces on the positioning plate is poor, and the processing quality is affected; secondly, the locating plate can appear the condition of beating in the twinkling of an eye under the influence of work piece inertia and gravity in the rotation adjustment process, very easily causes unrecoverable injury to the swing hydraulic cylinder main shaft, influences the device's actual life.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell knuckle anchor clamps exist, provide a reasonable in design, simple structure, clamping can be good, stability is higher, have shock-absorbing function and the longer for knuckle machining mounting fixture of life.

In order to achieve the above object, the present invention adopts the technical scheme that the fixing clamp for machining the steering knuckle comprises a swing hydraulic cylinder, the swing hydraulic cylinder is arranged on one side of a main shaft head, a positioning plate distributed on the other side of the main shaft head is arranged at a main shaft end of the swing hydraulic cylinder, the positioning plate is of a rectangular structure, a plurality of positioning holes are arranged on the positioning plate, a positioning connecting member is arranged in each positioning hole, the positioning holes are divided into four positioning hole groups, each positioning hole group at least comprises 3 positioning holes, the four positioning hole groups are respectively a first positioning hole group, a second positioning hole group, a third positioning hole group and a fourth positioning hole group, the first two positioning hole groups and the last two positioning hole groups are distributed in a vertically staggered manner, two pressure springs are arranged between the positioning plate and the main shaft head in a relative distribution manner, the pressure spring includes the ring body, the inner wall of ring body is provided with a plurality of evenly distributed's tooth mouth, be provided with curved fin in the tooth mouth, the one end that the tooth mouth was kept away from to the fin is the free end, the one side that the main shaft aircraft nose was towards the locating plate is provided with the ring channel that is used for installing the pressure spring.

Preferably, the positioning holes in the first positioning hole group are distributed in an L shape, the positioning holes in the second positioning hole group are distributed in a 1 shape, the positioning holes in the third positioning hole group are distributed in an oblique direction, and the positioning holes in the fourth positioning hole group are distributed in a 1 shape.

Preferably, the spindle nose comprises a vertical plate and a bottom plate, the vertical section of the vertical plate is butterfly-shaped, and the top surface and the two sides of the vertical plate are both provided with arc-shaped openings which are concave inwards towards the center of the vertical plate.

Preferably, the bottom of the bottom plate is provided with two symmetrically distributed cushion blocks, the cushion blocks are arranged in a safety groove, and the safety groove is arranged on a machine tool body.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model provides a fixing fixture is used in knuckle machine tooling can improve the location ability of this device through the locating hole of the different hole site directions of design on the locating plate, and the pressure spring can improve the stability of locating plate moreover, can guarantee processingquality, can protect the main shaft of swing pneumatic cylinder again. This device reasonable in design, simple structure, stability are higher, have shock-absorbing function and life is longer, are fit for extensive the popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an isometric view of a stationary fixture for machining a knuckle according to an embodiment;

FIG. 2 is a top view of the retaining clip for machining a knuckle according to an embodiment;

FIG. 3 is a schematic view illustrating the positioning holes on the positioning plate according to an embodiment;

FIG. 4 is an isometric view of a compression spring provided in accordance with an embodiment;

in each of the above figures, 1, a swing hydraulic cylinder; 2. a main shaft head; 21. a vertical plate; 211. an arc-shaped opening; 22. a base plate; 3. positioning a plate; 31. positioning holes; 31a, a first positioning hole group; 31b, a second positioning hole group; 31c, a third positioning hole group; 31d, a fourth positioning hole group; 4. a pressure spring; 41. an annular body; 42. a mouth of a tooth; 43. a fin; 5. cushion blocks; 6. a safety groove; 7. and positioning the connecting piece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations set forth in the following description of the specific embodiments.

In the embodiment, as shown in fig. 1-4, the fixing clamp for machining a knuckle provided by the present invention comprises a swing hydraulic cylinder 1, the swing hydraulic cylinder 1 is disposed on one side of a spindle head 2, a positioning plate 3 disposed on the other side of the spindle head 2 is disposed at a spindle end of the swing hydraulic cylinder 1, the positioning plate 3 has a rectangular structure, a plurality of positioning holes 31 are disposed on the positioning plate 3, a positioning connector 7 is disposed in the positioning hole 31, the positioning holes 31 are divided into four positioning hole groups, each of the positioning hole groups at least includes 3 positioning holes 31, the four positioning hole groups are respectively a first positioning hole group 31a, a second positioning hole group 31b, a third positioning hole group 31c and a fourth positioning hole group 31d, the first two positioning hole groups and the last two positioning hole groups are vertically staggered, two pressure springs 4 are disposed between the positioning plate 3 and the spindle head 2, the pressure spring 4 comprises an annular body 41, a plurality of tooth mouths 42 which are uniformly distributed are arranged on the inner wall of the annular body 41, arc-shaped warping sheets 43 are arranged in the tooth mouths 42, one ends, far away from the tooth mouths 42, of the warping sheets 43 are free ends, and an annular groove (not shown in the figure) for installing the pressure spring 4 is formed in one side, facing the positioning plate 3, of the spindle head 2.

Specifically, the swing hydraulic cylinder 1 can adjust the angle of the positioning plate 3, so that the purpose of adjusting the angle of the workpiece is achieved. The positioning connecting piece 7 can penetrate through a structural hole formed in the steering knuckle and is connected with the positioning plate 3, so that the workpiece meets the requirement of machining stability. Furthermore, the first positioning hole group 31a, the second positioning hole group 31b, the third positioning hole group 31c and the fourth positioning hole group 31d in different hole position directions are designed on the positioning plate 3, so that the connection capacity of the device to a workpiece can be improved, and the actual positioning capacity is higher. Elastic gap between two pressure springs 4 is dynamic change under main shaft aircraft nose 2 and locating plate 3's effect, and fin 43 has elasticity, it can obtain more stable pressure buffering effect with the crisscross cooperation of fin 43 on another ring body, thereby make pressure spring 4 exert buffering and automatic balance effect better between locating plate 3 and main shaft aircraft nose 2, especially cushion the vibration that locating plate 3 rotated the production, improve locating plate 3's stability, its direct effect not only guarantees processingquality, can also protect the main shaft of swing pneumatic cylinder 1, thereby prolong swing pneumatic cylinder 1's actual life, and the production cost is reduced.

In order to improve this device's location clamping capacity, with the knuckle to adapting to ground, the utility model provides a locating hole in the first locating hole group 31a is the L font and distributes, and the locating hole in the second locating hole group 31b is 1 font and distributes, and the locating hole slant in the third locating hole group 31c distributes, and the locating hole in the fourth locating hole group 31d is 1 font and distributes.

In order to improve main shaft head 2's practicality, the utility model provides a main shaft head 2 includes riser 21 and bottom plate 22, and the longitudinal section of riser 21 is butterfly type and its top surface and both sides all are provided with towards the arc mouth 211 of its central indent. The butterfly-shaped design of the main shaft machine head 2 can effectively avoid a machining tool and a machining machine head, and meanwhile, the main shaft machine head 2 further has the advantages of being reasonable in design, simple in structure and high in space utilization rate.

Further, the utility model discloses be provided with two symmetric distribution's cushion 5 in the bottom of bottom plate 22, cushion 5 sets up in safe groove 6, and safe groove 6 sets up on the lathe bed body. The cushion block 5 is used for heightening the main shaft head 2 and provides convenience for cleaning processing scraps. The safety groove 6 is designed to prevent the steering knuckle from directly falling to the workshop ground after clamping and releasing the pressure.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (4)

1. A fixing clamp for machining a steering knuckle comprises a swing hydraulic cylinder, wherein the swing hydraulic cylinder is arranged on one side of a main shaft machine head, a positioning plate distributed on the other side of the main shaft machine head is arranged at a main shaft end of the swing hydraulic cylinder, the fixing clamp is characterized in that the positioning plate is of a rectangular structure, a plurality of positioning holes are formed in the positioning plate, positioning connecting pieces are arranged in the positioning holes, the positioning holes are divided into four positioning hole groups, each positioning hole group at least comprises 3 positioning holes, the four positioning hole groups are respectively a first positioning hole group, a second positioning hole group, a third positioning hole group and a fourth positioning hole group, the front two positioning hole groups and the rear two positioning hole groups are distributed in a vertically staggered mode, two pressure springs which are distributed oppositely are arranged between the positioning plate and the main shaft machine head and comprise annular bodies, a plurality of tooth mouths which are distributed uniformly are arranged on the inner wall of the annular bodies, the tooth mouth is provided with an arc-shaped fin, one end of the fin, far away from the tooth mouth, is a free end, and one side, facing the positioning plate, of the spindle nose is provided with an annular groove for installing a pressure spring.

2. The knuckle machining fixing jig according to claim 1, wherein the first positioning hole group has L-shaped positioning holes, the second positioning hole group has 1-shaped positioning holes, the third positioning hole group has oblique positioning holes, and the fourth positioning hole group has 1-shaped positioning holes.

3. The fixing clamp for machining the knuckle according to claim 2, wherein the spindle nose comprises a vertical plate and a bottom plate, the vertical section of the vertical plate is butterfly-shaped, and the top surface and two sides of the vertical plate are provided with arc-shaped openings which are concave towards the center of the vertical plate.

4. The knuckle machining fixing clamp according to claim 3, wherein two symmetrically distributed cushion blocks are arranged at the bottom of the bottom plate, the cushion blocks are arranged in a safety groove, and the safety groove is arranged on a machine tool body.

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