CN112692599A

CN112692599A - Special fixture for five-axis machining center of automobile steering knuckle structural part

Info

Publication number: CN112692599A
Application number: CN202011614899.8A
Authority: CN
Inventors: 丰飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-23

Abstract

A special fixture for a five-axis machining center of an automobile steering knuckle structural member relates to the technical field of tool fixtures. The anchor clamps body be the triangle structure form, the first corner department of anchor clamps body be fixed with first flexible fixed block through fastening screw, second angle department is fixed with the flexible fixed block of second through fastening screw, third angle department is fixed with the flexible fixed block of third through fastening screw, the flexible fixed block of second and third between be provided with the flexible fixed block of fourth, the flexible fixed block of fourth pass through fastening screw and anchor clamps body fixed connection. Four telescopic fixing blocks on the fixture are uniformly controlled by the hydraulic oil circuit system, the steering knuckle is placed at a corresponding positioning position, clamping and fixing actions can be completed through the hydraulic oil circuit system at one time, shaking is avoided in the machining process, the movement is uniform and stable, reversing impact is small, machining operation precision of a workpiece is high, the consistency is good, and the fixture has great market popularization value.

Description

Special fixture for five-axis machining center of automobile steering knuckle structural part

Technical Field

The invention relates to the technical field of tool fixtures, in particular to a special fixture for a five-axis machining center of an automobile steering knuckle structural member.

Background

The automobile steering knuckle is one of important parts on an automobile steering axle and mainly comprises a supporting shaft neck, a flange plate, a fork frame and a steering knuckle arm, and when the automobile steering knuckle works, the automobile steering knuckle is mainly used for transmitting the driving direction of an automobile and driving a front wheel of the automobile to rotate around a main shaft, so that the automobile is steered and stably runs. The steering knuckle is usually connected to the vehicle body by three bushings and two bolts, and is connected to the brake system by the brake mounting holes of the flange. In the driving process of an automobile, the steering knuckle bears changeable load, so that higher requirements are put forward on the processing quality of the automobile steering knuckle in the processing and production process of the automobile steering knuckle, and the steering knuckle is required to have high strength. However, the automobile steering knuckle has the technical characteristics of complex structure, various forms, more steering knuckle processing hole sites, distribution in all directions of space and the like, so that the processing clamp in the prior art has the defects of complex clamping, complex procedures, low processing efficiency and the like, cannot meet the processing quality requirement of the automobile steering knuckle, and seriously restricts the batch production of the automobile steering knuckle.

The prior art discloses application numbers: CN201820323304.5 auto steering knuckle anchor clamps mechanism, it passes through closing device and positioner, accomplish all processing positions of a clamping of product, the material loading time has not only been reduced, and the production efficiency is improved, and can avoid the machining error that many times clamping caused, thereby improve the processingquality of product, but this kind of structure all adopts the mode of manual clamping to install automobile steering knuckle and anchor clamps fixedly through pneumatic control, joint strength is not firm after the installation, pneumatic control inside pipeline gas produces certain compressibility easily in the course of working, influence the processing operation precision of process, and then influence the size quality of product, cause the poor scheduling problem of uniformity.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a special fixture for a five-axis machining center of an automobile steering knuckle structural member, which solves the problems in the background art.

In order to achieve the purpose, the invention adopts the following technical scheme: the clamp comprises a clamp body 1, a first telescopic fixed block 2, a second telescopic fixed block 3, a third telescopic fixed block 4, a fourth telescopic fixed block 5 and an oil way control disc 6, wherein the clamp body 1 is in a triangular structure shape, the first telescopic fixed block 2 is fixed at a first corner of the clamp body 1 through a fastening screw, the second telescopic fixed block 3 is fixed at a second corner through a fastening screw, the third telescopic fixed block 4 is fixed at a third corner through a fastening screw, the fourth telescopic fixed block 5 is arranged between the second telescopic fixed block 3 and the third telescopic fixed block 4, the fourth telescopic fixed block 5 is fixedly connected with the clamp body 1 through a fastening screw, the oil way 6 is arranged at the bottom of the clamp body 1, the first support column 21 is arranged at the bottom of the first telescopic fixed block 2, the second support column 31 is arranged at the bottom of the second telescopic fixed block 3, the bottom of the flexible fixed block 4 of third be provided with third support column 41, the bottom of the flexible fixed block 5 of fourth be provided with fourth support column 51, the side department of first support column 21 be provided with shock absorber 211 and first spacing post 212, the side department of third support column 41 be provided with spacing post 411 of second and the spacing post 412 of third.

The oil circuit control panel 6 and the anchor clamps body 1 between adopt the interior mosaic connected mode of location, the oil circuit control panel 6 on be provided with first oil inlet 61, second oil inlet 62, third oil inlet 63, fourth oil inlet 64, oil-out 65, gas detection mouth 66, first oil inlet 61, second oil inlet 62, third oil inlet 63, fourth oil inlet 64 inside connect first flexible fixed block 2, the flexible fixed block 3 of second, the flexible fixed block 4 of third, the flexible fixed block 5 of fourth respectively, be formed with the return flow between inside jointly and flow out through oil-out 65.

First support column 21, second support column 31, third support column 41, fourth support column 51 on install knuckle body 7 jointly, knuckle body 7 contain calliper mounting hole 71, single arm-drag mounting hole 72, wheel hub bearing mounting hole 73, bolt mounting hole 74, shock attenuation mounting hole 75, calliper mounting hole 71 set up between first support column 21, shock attenuation post 211 and first flexible fixed block 2, single arm-drag mounting hole 72 set up between the flexible fixed block 3 of second support column 31 and second, bolt mounting hole 74 set up between the flexible fixed block 4 of third support column 41 and third, bolt mounting hole 74 set up between the flexible fixed block 5 of fourth support column 51 and fourth.

The surface of anchor clamps body 1 be provided with couple 11, couple 11 and anchor clamps body 1 are inside spacing fixed, the appearance is circular structure.

The first support column 21, the second support column 31, the third support column 41 and the fourth support column 51 are all connected with the clamp body 1 through fastening screws in a fastening manner.

The first limiting column 212, the second limiting column 411 and the third limiting column 412 are all connected with the clamp body 1 through fastening screws.

The working principle of the invention is as follows: when the hydraulic steering knuckle fixing device is used, a hydraulic oil circuit is controlled through an external control element of a hydraulic system, so that the corresponding first telescopic fixing block 2, the second telescopic fixing block 3, the third telescopic fixing block 4 and the fourth telescopic fixing block 5 respectively ascend and rotate, the steering knuckle body 7 is arranged on the first support column 21, the second support column 31, the third support column 41 and the fourth support column 51, the positions of relevant positions of the steering knuckle body are limited through the first limiting column 212, the second limiting column 411 and the third limiting column 412 respectively, after the steering knuckle fixing device is placed, the first telescopic fixing block 2, the second telescopic fixing block 3, the third telescopic fixing block 4 and the fourth telescopic fixing block 5 are controlled through the hydraulic system again to rotate, contract and fix the steering knuckle body 7, the fixing effect of products in one-time clamping is good, and the process is labor-saving and convenient.

After the technical scheme is adopted, the invention has the beneficial effects that: four telescopic fixing blocks on the fixture are uniformly controlled by the hydraulic oil circuit system, the steering knuckle is placed at a corresponding positioning position, clamping and fixing actions can be completed through the hydraulic oil circuit system at one time, shaking is avoided in the machining process, the movement is uniform and stable, reversing impact is small, machining operation precision of a workpiece is high, the consistency is good, and the fixture has great market popularization value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only 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 a schematic structural view of a jig body 1 of the present invention;

fig. 2 is a schematic structural view of the knuckle body 7 of the present invention;

FIG. 3 is a bottom view of the clamp body 1 of the present invention;

FIG. 4 is a view showing the effect of the installation of the knuckle body 7 and the clamp-containing body 1 according to the present invention.

Description of reference numerals: the clamp comprises a clamp body 1, a hook 11, a first telescopic fixing block 2, a first supporting column 21, a shock absorption column 211, a first limiting column 212, a second telescopic fixing block 3, a second supporting column 31, a third telescopic fixing block 4, a third supporting column 41, a second limiting column 411, a third limiting column 412, a fourth telescopic fixing block 5, a fourth supporting column 51, an oil way control disc 6, a first oil inlet 61, a second oil inlet 62, a third oil inlet 63, a fourth oil inlet 64, an oil outlet 65, an air detection port 66, a steering knuckle body 7, a caliper mounting hole 71, a pull arm mounting hole 72, a hub bearing mounting hole 73, a bolt mounting hole 74 and a shock absorption mounting hole 75.

Detailed Description

Referring to fig. 1 to 4, the technical solution adopted by the present embodiment is: the clamp comprises a clamp body 1, a first telescopic fixed block 2, a second telescopic fixed block 3, a third telescopic fixed block 4, a fourth telescopic fixed block 5 and an oil way control disc 6, wherein the clamp body 1 is in a triangular structure shape, the first telescopic fixed block 2 is fixed at a first corner of the clamp body 1 through a fastening screw, the second telescopic fixed block 3 is fixed at a second corner through a fastening screw, the third telescopic fixed block 4 is fixed at a third corner through a fastening screw, the fourth telescopic fixed block 5 is arranged between the second telescopic fixed block 3 and the third telescopic fixed block 4, the fourth telescopic fixed block 5 is fixedly connected with the clamp body 1 through a fastening screw, the oil way 6 is arranged at the bottom of the clamp body 1, the first support column 21 is arranged at the bottom of the first telescopic fixed block 2, the second support column 31 is arranged at the bottom of the second telescopic fixed block 3, the bottom of the flexible fixed block 4 of third be provided with third support column 41, the bottom of the flexible fixed block 5 of fourth be provided with fourth support column 51, the side department of first support column 21 be provided with shock absorber 211 and first spacing post 212, the side department of third support column 41 be provided with spacing post 411 of second and the spacing post 412 of third.

Furthermore, the oil circuit control disk 6 and the clamp body 1 adopt an inner positioning embedded connection mode, the oil way control disc 6 is provided with a first oil inlet 61, a second oil inlet 62, a third oil inlet 63, a fourth oil inlet 64, an oil outlet 65 and an air detection port 66, the first oil inlet 61, the second oil inlet 62, the third oil inlet 63 and the fourth oil inlet 64 are respectively connected with the first telescopic fixed block 2, the second telescopic fixed block 3, the third telescopic fixed block 4 and the fourth telescopic fixed block 5 inside, a return channel is formed between the first telescopic fixed block and the second telescopic fixed block and flows out through the oil outlet 65, the first oil inlet 61, the second oil inlet 62, the third oil inlet 63, the fourth oil inlet 64 and the oil outlet 65 are connected with a control element of an external hydraulic control system, and the air check port 66 is convenient for checking the air tightness of an internal oil path of the clamp body 1.

Further, the first support column 21, the second support column 31, the third support column 41 and the fourth support column 51 are commonly provided with a knuckle body 7, the steering knuckle body 7 comprises a caliper mounting hole 71, a pull arm mounting hole 72, a hub bearing mounting hole 73, a bolt mounting hole 74 and a damping mounting hole 75, the caliper mounting hole 71 is arranged among the first support column 21, the shock absorption column 211 and the first telescopic fixing block 2, the shock absorption column 211 can enable the steering knuckle body 7 to generate certain reverse acting force during mounting, the collision caused by direct mounting is reduced, the size precision of a workpiece is influenced, the pull arm mounting hole 72 is arranged between the second support column 31 and the second telescopic fixed block 3, the bolt mounting hole 74 is arranged between the third supporting column 41 and the third telescopic fixing block 4, the bolt mounting hole 74 is arranged between the fourth supporting column 51 and the fourth telescopic fixing block 5.

Further, the surface of anchor clamps body 1 be provided with couple 11, couple 11 and anchor clamps body 1 are inside spacing fixed, the appearance is circular structure, couple 11 conveniently hoists anchor clamps body 1, accomodate.

Further, the first support column 21, the second support column 31, the third support column 41 and the fourth support column 51 are all fastened and connected with the fixture body 1 through fastening screws, and the first support column 21, the second support column 31, the third support column 41 and the fourth support column 51 have a supporting function on the steering knuckle body 7.

Further, the first limiting column 212, the second limiting column 411 and the third limiting column 412 are all in fastening connection with the fixture body 1 through fastening screws, and the first limiting column 212, the second limiting column 411 and the third limiting column 412 are beneficial to limiting the overall position of the steering knuckle body 7, so that the dislocation situation is prevented.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a five machining center special fixture of auto steering knuckle structure spare which characterized in that: the clamp comprises a clamp body (1), a first telescopic fixing block (2), a second telescopic fixing block (3), a third telescopic fixing block (4), a fourth telescopic fixing block (5) and an oil way control disc (6), wherein the clamp body (1) is in a triangular structure, the first corner of the clamp body (1) is fixed with the first telescopic fixing block (2) through a fastening screw, the second corner is fixed with the second telescopic fixing block (3) through a fastening screw, the third corner is fixed with the third telescopic fixing block (4) through a fastening screw, the fourth telescopic fixing block (5) is arranged between the second telescopic fixing block (3) and the third telescopic fixing block (4), the fourth telescopic fixing block (5) is fixedly connected with the clamp body (1) through a fastening screw, the oil way control disc (6) is arranged at the bottom of the clamp body (1), the bottom of first flexible fixed block (2) be provided with first support column (21), the bottom of the flexible fixed block of second (3) be provided with second support column (31), the bottom of the flexible fixed block of third (4) be provided with third support column (41), the bottom of the flexible fixed block of fourth (5) be provided with fourth support column (51), the side department of first support column (21) be provided with shock absorber column (211) and first spacing post (212), the side department of third support column (41) be provided with spacing post of second (411) and third (412).

2. The special clamp for the five-axis machining center of the structural member of the automobile steering knuckle according to claim 1, wherein the special clamp comprises: the oil circuit control panel (6) and the clamp body (1) are connected in an inner positioning embedding mode, a first oil inlet (61), a second oil inlet (62), a third oil inlet (63), a fourth oil inlet (64), an oil outlet (65) and an air detection port (66) are arranged on the oil circuit control panel (6), the first oil inlet (61), the second oil inlet (62), the third oil inlet (63) and the fourth oil inlet (64) are internally connected with a first telescopic fixing block (2), a second telescopic fixing block (3), a third telescopic fixing block (4) and a fourth telescopic fixing block (5) respectively, and the first oil inlet (61), the second oil inlet (62), the third oil inlet (63), the fourth oil inlet (64) and the oil outlet (65) are connected with a control element of an external hydraulic control system.

3. The special clamp for the five-axis machining center of the structural member of the automobile steering knuckle according to claim 1, wherein the special clamp comprises: the first support column (21), the second support column (31), the third support column (41) and the fourth support column (51) are provided with a steering knuckle body (7) together, the steering knuckle body (7) comprises a caliper mounting hole (71), a pull arm mounting hole (72), a hub bearing mounting hole (73), a bolt mounting hole (74) and a damping mounting hole (75), the caliper mounting hole (71) is arranged among the first support column (21), the shock absorption column (211) and the first telescopic fixing block (2), the pull arm mounting hole (72) is arranged between the second supporting column (31) and the second telescopic fixing block (3), the bolt mounting hole (74) is arranged between the third supporting column (41) and the third telescopic fixing block (4), the bolt mounting hole (74) is formed between the fourth supporting column (51) and the fourth telescopic fixing block (5).

4. The special clamp for the five-axis machining center of the structural member of the automobile steering knuckle according to claim 1, wherein the special clamp comprises: the surface of anchor clamps body (1) be provided with couple (11), couple (11) and anchor clamps body (1) are inside spacing fixed, the appearance is circular structure, couple (11) are convenient to hoist anchor clamps body (1), accomodate.

5. The special clamp for the five-axis machining center of the structural member of the automobile steering knuckle according to claim 1, wherein the special clamp comprises: the clamp is characterized in that the first supporting column (21), the second supporting column (31), the third supporting column (41) and the fourth supporting column (51) are fixedly connected with the clamp body (1) through fastening screws, and the first supporting column (21), the second supporting column (31), the third supporting column (41) and the fourth supporting column (51) have a supporting effect on the steering knuckle body (7).

6. The special clamp for the five-axis machining center of the structural member of the automobile steering knuckle according to claim 1, wherein the special clamp comprises: first spacing post (212), spacing post of second (411), the spacing post of third (412) all through fastening screw and anchor clamps body (1) fastening connection, first spacing post (212), the spacing post of second (411), the spacing post of third (412) are favorable to carrying out the overall position spacing to knuckle body (7), prevent the dislocation condition.