A special fixture for machining the flange position of a knuckle axle seat

Abstract

The utility model discloses a kind of special fixture of machining knuckle axle seat flange position, its characteristics are, by positioning device assembly, pressing plate, compression bolt and shoulder nut composition, the positioning device assembly is by base, base positioning key, adjustable support, nut, locating block, compression bolt composition;Base is used as support carrier, base positioning key, adjustable support, locating block, compression bolt are all installed on base;Compression bolt is installed on base, pressing plate and shoulder nut are installed on compression bolt;Simple structure, strong practicality, manufacturing cost is low, can greatly improve the processing efficiency of knuckle axle seat, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of machining technology for steering knuckle bearings of mining truck axles, specifically a special fixture for machining the flange position of steering knuckle bearings. Background Technology

[0002] Currently, the machining of the steering knuckle bearing flange position is mostly completed by lathe turning and radial drilling. However, the perpendicularity of the bolt holes and flange thread holes to the surface and the position of the flange holes cannot be guaranteed. In order to improve the accuracy, when using one-clamp machining, the workpiece needs to be scribing first, and a platform needs to be added. The machining time is also long. The workpiece needs to be aligned according to the scribing in the machining equipment, which takes a long time to adjust. Moreover, it is very easy to make the machining process incorrect due to the alignment, resulting in the workpiece being unqualified. Utility Model Content

[0003] The technical solution provided by this utility model is: a special fixture for machining the flange position of a steering knuckle bearing seat, characterized in that it consists of a positioning device assembly, a pressure plate, clamping bolts, and shoulder nuts, wherein the pressure plate, clamping bolts, and shoulder nuts are multiple pieces; the positioning device assembly consists of a base, a base positioning key, an adjustable support, nuts, positioning blocks, and tightening bolts, wherein the base positioning key consists of two pieces, the adjustable support and nuts consist of multiple pieces, the positioning blocks consist of three pieces, and the tightening bolts consist of two pieces; the base serves as a supporting carrier. A positioning key for the base is fixed in the keyway on the lower side. An adjustable support is provided in the threaded hole on the upper side of the base. Nuts are provided on the adjustable support and the clamping bolt respectively. The nuts and the threaded hole on the upper side of the base work together to lock the adjustable support and the clamping bolt. Five upright plates are fixed on the upper side of the base, two on the left and two on the right, and one on the top. Positioning blocks are provided on the left and top upright plates respectively. A clamping bolt is provided on the right upright plate. A clamping bolt is provided in the threaded hole on the upper side of the base. A pressure plate and a shoulder nut are provided on the clamping bolt.

[0004] Furthermore, the centers of the two base positioning keys are in the same plane.

[0005] Furthermore, the multiple adjustable supports are adjusted to the same height and locked.

[0006] Furthermore, the end faces of the two positioning blocks on the left are in the same plane and perpendicular to the center plane of the base positioning key.

[0007] Furthermore, the height of the positioning block is lower than the height of the machined surface of the steering knuckle bearing.

[0008] Furthermore, the center height of the tightening bolt is the same as the center height of the mounting bolt of the positioning block.

[0009] The beneficial effects of this utility model are: 1. It can greatly improve the perpendicularity of bolt holes and flange threaded holes to the surface and the positional accuracy of flange holes, ensuring the machining accuracy and performance of the bearing seat and improving the workpiece qualification rate; 2. The bearing blank can be put into production without scribing, eliminating the need for scribing platforms and other investments, reducing the footprint of the platform, and shortening the production cycle of bearing scribing. 3. It reduces the alignment and adjustment time of the bearing in the machining equipment, lowers the production cycle time, and improves production efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model.

[0011] In the diagram: 1. Base, 2. Base positioning key, 3. Mounting bolt, 4. Pressure plate, 5. Tightening bolt, 6. Shoulder nut, 7. Adjustable support, 8. Hex nut, 9. Positioning block, 10. Tightening bolt. Detailed Implementation

[0012] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings.

[0013] like Figure 1 , 2 As shown, a special fixture for machining the flange position of a steering knuckle bearing seat comprises a positioning device assembly, a pressure plate 4, clamping bolts 5, and shoulder nuts 6. Taking the pressure plate 4, clamping bolts 5, and shoulder nuts 6 as an example, the positioning device assembly comprises a base 1, base positioning keys 2, mounting bolts 3, adjustable supports 7, nuts 8, positioning blocks 9, and tightening bolts 10. Taking two base positioning keys 2, five mounting bolts 3, four adjustable supports 7, eight nuts 8, three positioning blocks 9, and two tightening bolts 10 as an example, the base 1 serves as a supporting carrier. The base positioning keys 2 are fastened to the keyway on the lower side of the base 1 by the mounting bolts 3 to position the fixture within the equipment. The centers of the two base positioning keys 2 are in the same plane. Each clamping bolt... A nut 8 is installed on both the adjustable support 5 and the adjustable support 7, and then installed into the threaded hole on the upper side of the base 1. The clamping bolt 5 is locked with the nut 8. The four adjustable supports 7 can be adjusted to the same height and locked. Five vertical plates are welded on the upper side of the base 1. In the top view, there are two on the left and two on the right, and one on the top. The positioning blocks 9 are placed on the left and top vertical plates respectively by the mounting bolts 3. The end faces of the two positioning blocks 9 on the left are in the same plane and perpendicular to the center plane of the base positioning key 2. The height of the positioning blocks 9 is lower than the height of the machined surface of the steering knuckle bearing. The tightening bolt 10 is installed on the right vertical plate of the base 1. The center height of the tightening bolt 10 is the same as the center height of the mounting bolt 3 of the positioning block. The pressure plate 4 and the shoulder nut 6 are installed on the clamping bolt 5.

[0014] This utility model is a special fixture for machining the flange position of a steering knuckle bearing seat. In use, the bearing seat flange is hoisted upward onto the adjustable support 7 of the tooling, and horizontally pressed against the positioning block 9. The workpiece is leveled by adjusting the adjustable support 7, and then the adjustable support 7 is locked with the nut 8. The bearing seat is tightened from the side with the tightening bolt 10, and the shoulder nut 6 presses the bearing seat with the pressure plate 4. The pressure plate 4 is placed directly above the adjustable support 7, avoiding the position of the bearing seat machining surface. The height of the positioning block 9 and the adjustable support 10 is lower than the height of the machining surface. Then the equipment is started to begin machining.

[0015] It should be understood that any technical features not described in detail in this specification belong to the prior art. Although the embodiments of this utility model patent have been described above in conjunction with the accompanying drawings, this utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make more forms under the guidance of this utility model without departing from the spirit and scope of protection of this utility model and the claims, and these all fall within the protection scope of this utility model.

Claims

1. A special fixture for machining the flange position of a steering knuckle bearing seat, characterized in that, The device comprises a positioning device assembly, a pressure plate, clamping bolts, and shoulder nuts, with multiple pressure plates, clamping bolts, and shoulder nuts. The positioning device assembly consists of a base, a base positioning key, an adjustable support, nuts, positioning blocks, and tightening bolts. There are two base positioning keys, multiple adjustable supports and nuts, three positioning blocks, and two tightening bolts. The base serves as a support carrier. The base positioning key is fixed in a keyway on the lower side of the base. An adjustable support is installed in a threaded hole on the upper side of the base. Nuts are installed on the adjustable support and clamping bolts, and the nuts, together with the threaded hole on the upper side of the base, lock the adjustable support and clamping bolts. Five upright plates are fixed to the upper side of the base, two on each side and one on the top. Positioning blocks are installed on the left and top upright plates, and a tightening bolt is installed on the right upright plate. A clamping bolt is installed in a threaded hole on the upper side of the base, and a pressure plate and a shoulder nut are installed on the clamping bolt.

2. A special fixture for machining the flange position of a steering knuckle bearing as described in claim 1, characterized in that, The centers of the two base positioning keys are in the same plane.

3. A special fixture for machining the flange position of a steering knuckle bearing as described in claim 1, characterized in that, The multiple adjustable supports are adjusted to the same height and locked.

4. A special fixture for machining the flange position of a steering knuckle bearing as described in claim 1, characterized in that, The end faces of the two positioning blocks on the left are in the same plane and perpendicular to the center plane of the positioning key on the base.

5. A special fixture for machining the flange position of a steering knuckle bearing as described in claim 1, characterized in that, The height of the positioning block is lower than the height of the machined surface of the steering knuckle bearing.

6. A special fixture for machining the flange position of a steering knuckle bearing as described in claim 1, characterized in that, The center height of the tightening bolt is the same as the center height of the mounting bolt of the positioning block.

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