Fixture for four-axis numerical control machining of steering knuckle

Abstract

The fixture comprises a base, a fixture body is vertically arranged on the base, and a left steering knuckle positioning mechanism is fixedly installed above the front face of the fixture body. A right steering knuckle positioning mechanism with the same structure and opposite directions is fixedly mounted on the front surface of the clamp main body below the left steering knuckle positioning mechanism; a cleaning device is fixedly mounted at the top of the clamp main body; by arranging the clamp main body and installing the steering knuckle positioning mechanism on the clamp main body, the steering knuckle is convenient and rapid to clamp, the clamping time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for four-axis numerical control machining of a steering knuckle. Background Art

[0002] Automobile steering knuckle structural parts are important components in automobile drive systems. In order to meet the relevant installation performance of automobile drive systems, automobile steering knuckle structural parts require numerous processing procedures and need to be processed in multiple directions.

[0003] However, at present, automobile steering knuckles are generally fixed by manual clamping plates, which is cumbersome and time-consuming. It also requires more than four clamps, which consumes a lot of manpower and material resources. In addition, manual clamping is prone to deflection, resulting in a high product defect rate. Utility Model Content

[0004] The utility model aims to provide a fixture for four-axis numerical control machining of a steering knuckle to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for four-axis CNC machining of a steering knuckle, comprising a base, a fixture body vertically arranged on the base, a left steering knuckle positioning mechanism fixedly installed above the front of the fixture body, a right steering knuckle positioning mechanism with the same structure and opposite direction fixedly installed on the front of the fixture body below the left steering knuckle positioning mechanism, and a cleaning device fixedly installed on the top of the fixture body;

[0006] The left steering knuckle positioning mechanism includes a positioning pin, a positioning block, a corner cylinder and a positioning plate. The positioning block is fixedly installed at a position close to the middle of the front side of the positioning plate. A plurality of positioning pins and corner cylinders are provided and fixedly installed around the positioning block. The back side of the positioning plate is fixedly connected to the front side of the fixture body.

[0007] First, place the left steering knuckle and the right steering knuckle on the corresponding positioning blocks respectively, so that the positioning pin extends into the corresponding hole on the steering knuckle, and then start the angle cylinder. The angle cylinder rotates the angle and presses and clamps the steering knuckle tightly, and then installs the base on the machine for processing. During the processing, the cleaning device continuously sprays cutting fluid to cool the tool on the machine, which is convenient for clamping and reduces clamping time.

[0008] Preferably, the installation positions of the positioning pin and the angle cylinder are set according to the shape of the product. A positioning hole corresponding to the positioning pin is provided on the steering knuckle product, and the angle cylinder is used to press the upper surface edge of the steering knuckle.

[0009] Preferably, a plurality of airtight detection holes are opened at equal intervals around the front of the positioning block, an airtight detection device is arranged inside the positioning block, and a pressure gauge is fixedly installed on the clamp body. After the steering knuckle is installed on the positioning block, it is completely fitted with the positioning block, and whether the clamping is skewed can be confirmed by airtight detection.

[0010] Preferably, the base is a common base, and the clamp body is fixedly mounted on the base by bolts. When it is necessary to process steering knuckles of different shapes, only the clamp body needs to be removed, which saves costs.

[0011] Preferably, the cleaning device comprises a connecting block fixedly mounted on the top of the fixture body and a nozzle fixedly mounted on the front surface of the positioning plate.

[0012] Preferably, a through hole is provided in the middle of the top of the connection block, a water channel is provided in the fixture body, the through hole is connected to the water channel in the fixture body, and the nozzle is connected to the water channel in the fixture body. When processing products, the cutting fluid flows out along the water channel to cool the processing tool to prevent the tool from sticking.

[0013] Preferably, the positioning pin, positioning block and angle oil cylinder are all made of 45# steel quenched and tempered material, which is not easy to wear and has good stability.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] By setting up a fixture body, installing a steering knuckle positioning mechanism on the fixture body, and through the mutual cooperation of the positioning pin, the positioning block and the angle cylinder, clamping is convenient and quick, the clamping time is reduced, and the production efficiency is improved; an airtight detection hole is set on the positioning block, and an airtight detection is performed on the steering knuckle after clamping, which effectively prevents clamping deviation, improves positioning accuracy, and ensures the quality of processed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front view schematic diagram of the utility model.

[0018] Explanation of the accompanying drawings: 1. Base; 2. Clamp body; 3. Left steering knuckle positioning mechanism; 31. Positioning pin; 32. Positioning block; 321. Airtightness detection hole; 33. Angle cylinder; 34. Positioning plate; 4. Right steering knuckle positioning mechanism; 5. Cleaning device; 6. Pressure gauge; 7. Connecting block; 71. Through hole; 8. Nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0021] See also Figure 1-2 The utility model provides a technical solution: comprising a base 1, a fixture body 2 is vertically arranged on the base 1, a left steering knuckle positioning mechanism 3 is fixedly installed above the front of the fixture body 2, a right steering knuckle positioning mechanism 4 with the same structure and opposite direction is fixedly installed on the front of the fixture body 2 below the left steering knuckle positioning mechanism 3, and a cleaning device 5 is fixedly installed on the top of the fixture body 2;

[0022] The left steering knuckle positioning mechanism 3 includes a positioning pin 31, a positioning block 32, a corner cylinder 33 and a positioning plate 34. The positioning block 32 is fixedly installed at a position near the middle of the front of the positioning plate 34. There are several positioning pins 31 and corner cylinders 33, which are fixedly installed around the positioning block 32. The back of the positioning plate 34 is fixedly connected to the front of the clamp body 2.

[0023] The installation positions of the positioning pin 31 and the corner oil cylinder 33 are set according to the shape of the product.

[0024] A plurality of airtight detection holes 321 are provided at equal intervals around the front of the positioning block 32 . An airtight detection device is provided inside the positioning block 32 . A barometer 6 is fixedly mounted on the fixture body 2 .

[0025] The base 1 is a common base, and the clamp body 2 is fixedly mounted on the base 1 by bolts.

[0026] The cleaning device 5 includes a connecting block 7 fixedly mounted on the top of the fixture body 2 and a spray head 8 fixedly mounted on the front surface of the positioning plate 34 .

[0027] A through hole 71 is provided in the middle of the top of the connecting block 7 , a water channel is provided in the fixture body 2 , the through hole 71 is communicated with the water channel in the fixture body 2 , and the nozzle 8 is communicated with the water channel in the fixture body 2 .

[0028] The positioning pin 31, the positioning block 32 and the angle oil cylinder 33 are all made of 45# steel quenched and tempered material.

[0029] Working principle or structural principle: first, place the left steering knuckle and the right steering knuckle on the corresponding positioning blocks 32 respectively, so that the positioning pin 31 extends into the corresponding hole on the steering knuckle, and then start the corner cylinder 33, the corner cylinder 33 rotates the angle and presses and clamps the steering knuckle, then start the airtight detection device, and detect whether the steering knuckle is installed properly through the airtight detection hole 321 and the pressure gauge 6. After the installation is complete, the base 1 is installed on the machine for processing. During the processing, cutting fluid is continuously injected into the through hole 71 of the connecting block 7 on the cleaning device 5. The cutting fluid flows along the water path and is sprayed from the nozzle 8 to cool the tool on the machine. The device is convenient and quick to clamp, which reduces the clamping time and improves production efficiency.

[0030] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0031] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0032] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for four-axis CNC machining of a steering knuckle, comprising a base (1), characterized in that: A fixture body (2) is vertically arranged on the base (1); a left steering knuckle positioning mechanism (3) is fixedly installed above the front of the fixture body (2); a right steering knuckle positioning mechanism (4) with the same structure but opposite direction is fixedly installed on the front of the fixture body (2) below the left steering knuckle positioning mechanism (3); and a cleaning device (5) is fixedly installed on the top of the fixture body (2); The left steering knuckle positioning mechanism (3) comprises a positioning pin (31), a positioning block (32), a corner oil cylinder (33) and a positioning plate (34); the positioning block (32) is fixedly mounted at a position close to the middle of the front side of the positioning plate (34); a plurality of positioning pins (31) and corner oil cylinders (33) are provided and fixedly mounted around the positioning block (32); the back side of the positioning plate (34) is fixedly connected to the front side of the clamp body (2).

2. The four-axis CNC machining fixture for a steering knuckle according to claim 1, characterized in that: The installation positions of the positioning pin (31) and the corner oil cylinder (33) are set according to the shape of the product.

3. The fixture for four-axis CNC machining of a steering knuckle according to claim 1, characterized in that: A plurality of airtightness detection holes (321) are provided at equal intervals around the front surface of the positioning block (32), an airtightness detection device is provided inside the positioning block (32), and a pressure gauge (6) is fixedly mounted on the clamp body (2).

4. The fixture for four-axis CNC machining of a steering knuckle according to claim 1, characterized in that: The base (1) is a common base, and the clamp body (2) is fixedly mounted on the base (1) by means of bolts.

5. The fixture for four-axis CNC machining of a steering knuckle according to claim 1, characterized in that: The cleaning device (5) comprises a connection block (7) fixedly mounted on the top of the fixture body (2) and a spray head (8) fixedly mounted on the front surface of the positioning plate (34).

6. The fixture for four-axis CNC machining of a steering knuckle according to claim 5, characterized in that: A through hole (71) is provided in the middle of the top of the connection block (7), a water channel is provided in the clamp body (2), the through hole (71) is connected to the water channel in the clamp body (2), and the nozzle (8) is connected to the water channel in the clamp body (2).

7. The fixture for four-axis CNC machining of a steering knuckle according to claim 1, characterized in that: The positioning pin (31), the positioning block (32) and the angle oil cylinder (33) are all made of 45# steel quenched and tempered material.

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