Hub machining positioning mechanism

Abstract

The utility model discloses a hub machining positioning mechanism which comprises a center base, an inner cavity is formed in the center base, a through hole is formed in the bottom of the inner cavity, an adjusting screw capable of freely rotating is installed at the bottom of the inner cavity, a spring floating mechanism capable of ascending and descending in the inner cavity is installed in the inner cavity, and an ascending and descending adjusting threaded hole is formed in the bottom of the spring floating mechanism. The spring floating mechanism is in threaded fit connection with the adjusting screw, and a conical positioning pressing cap is fixed to the upper end of the spring floating mechanism. Compared with the prior art, the reverse milling positioning device has the advantages that the structural design is simple and ingenious, a product to be machined can be accurately positioned, and the problem that the product cannot be stably and accurately positioned in the reverse milling process is solved.

Description

Technical Field

[0001] The utility model relates to a positioning mechanism, in particular to a positioning mechanism for hub machining. Background Art

[0002] Normal milling machining of aluminum alloy hubs is forward machining. With the unique shapes of modified products, reverse milling machining is particularly important for the positioning and clamping of hubs. At present, reverse milling positioning on the market is carried out through the mode of expansion sleeves or positioning mandrels. The structure of the expansion sleeve positioning method is cumbersome and inconvenient to use; in the center of the structure of the positioning mandrel, there is a gap between the mandrel and the product center hole, and they cannot be well matched, resulting in errors in clamping. During the reverse milling machining of hubs, if there is no relatively accurate and stable center positioning mechanism, the product is prone to running off or deviating from the center position during clamping, resulting in the processed product not meeting the actual requirements or even being scrapped in batches. Therefore, developing a positioning mechanism for hub machining has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0003] The utility model is to solve the above deficiencies and provides a positioning mechanism for hub machining.

[0004] The above object of the utility model is achieved by the following technical solutions: A positioning mechanism for hub machining includes a central base. The central base is provided with an inner cavity. A through hole is provided at the bottom of the inner cavity, and an adjusting screw that can rotate freely is installed. A spring floating mechanism that can be lifted and lowered in the inner cavity is installed in the inner cavity. A lifting and adjusting threaded hole is provided at the bottom of the spring floating mechanism, and it is in threaded fit connection with the adjusting screw. A conical positioning pressing cap is fixed at the upper end of the spring floating mechanism.

[0005] Further, the conical positioning pressing cap is fixed at the upper end of the spring floating mechanism through a screw.

[0006] Further, the spring floating mechanism includes a lifting seat, a spring and a floating member. The lifting seat is provided with a floating concave cavity. The floating member is installed in the floating concave cavity in a liftable and movable manner, and a limiting groove with a certain stroke is provided on the side wall of the floating member. A limiting pin that cooperates with the limiting groove is provided on the side wall of the lifting seat. The spring is arranged between the lifting seat and the floating member. A space for accommodating the spring is provided at the bottom of the floating member. The lifting and adjusting threaded hole is provided at the bottom of the lifting seat.

[0007] Further, the floating member includes a lower component and an upper component, and the lower component and the upper component are fixedly butted through screws.

[0008] Further, the limiting groove has a waist-shaped hole structure.

[0009] Further, a plurality of locking and positioning threaded holes are provided on the side wall of the central base, and positioning screws are installed.

[0010] Further, a positioning slot corresponding to the locking and positioning wire hole is provided on the side wall of the lifting seat.

[0011] The advantages of the present utility model compared with the prior art are as follows: The structure design of the present utility model is simple and ingenious, and it can accurately position the product to be processed, solving the problem that the product cannot be stably and accurately positioned during the face milling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded structural schematic diagram of one side angle of the present utility model.

[0013] Figure 2 is an exploded structural schematic diagram of the other side angle of the present utility model.

[0014] Figure 3 is an internal structural schematic diagram of the present utility model.

[0015] Figure 4 is an external structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Such as Figures 1 to 4As shown, a wheel hub processing positioning mechanism includes a central base 1, the central base 1 is provided with an inner cavity 101, the bottom of the inner cavity 101 is provided with a through hole 102, and a freely rotatable adjusting screw 2 is installed through a limiting pressure plate 7, and a spring floating mechanism 3 that can be lifted and lowered in the inner cavity 101 is installed in the inner cavity 101. The spring floating mechanism 3 includes a lifting seat 301, a spring 302 and a floating member 303, the lifting seat 301 is provided with a floating cavity 304, the floating member 303 can be lifted and lowered in the floating cavity 304, and the side wall of the floating member 303 is provided with a limiting groove 305 with a certain stroke, the limiting groove 305 is a waist-shaped hole structure, and the side wall of the lifting seat 301 is provided with a limiting nail 4 that cooperates with the limiting groove 305 to prevent the floating member 303 from escaping from the floating cavity 304 of the lifting seat 301; the floating member 3 03 includes a lower component 3031 and an upper component 3032, which are fixedly connected with each other by screws. The spring 302 is arranged between the lifting seat 301 and the lower component 3031 of the floating member 303. The bottom of the lower component 3031 of the floating member 303 is provided with a space 307 for accommodating the spring 302. The bottom of the lifting seat 301 is provided with a lifting adjustment threaded hole 306, which is threadedly connected with the adjusting screw 2. The upper end of the spring floating mechanism 3 is fixed with a conical positioning pressure cap 5 through a screw. The side wall of the central base 1 is provided with a plurality of locking positioning thread holes 103, and is installed with positioning screws 6. The side wall of the lifting seat 301 is provided with a positioning card slot 7 corresponding to the locking positioning thread hole 103 to prevent the lifting seat 301 from loosening after the height is adjusted.

[0018] The central base 1 of the utility model is connected with the equipment fixture, and the spring floating mechanism 3 is placed in the inner cavity 101 of the central base 1, and is connected with the lifting and lowering adjustment threaded hole 306 at the bottom of the lifting seat 301 of the spring floating mechanism 3 by passing the adjusting screw 2 through the through hole 102 at the bottom of the central base 1. The height of the floating mechanism can be adjusted by rotating the adjusting screw 2, which is convenient for adjusting the use of wheel hubs of different sizes. The conical positioning pressure cap 5 is placed on the upper end of the spring floating mechanism 3, and the conical pressure cap is connected and fixed to the spring floating mechanism 3 by the screw; the loading and unloading of the conical positioning pressure cap 5 is completed by the screw, and the operation is simple. Different conical positioning pressure caps 5 can be replaced for the center holes of products of different sizes, so that a set of positioning mechanisms can meet the use of multiple products; at the same time, through the cooperation of the positioning screw 6 and the positioning slot, after adjusting the height position of the spring floating mechanism 3, the positioning screw 6 is locked to prevent the spring floating mechanism 3 from loosening.

[0019] During processing and positioning, place the center hole of the wheel hub on the conical positioning pressure cap 5 of the positioning mechanism of the utility model, locate the center of the wheel hub through the conical positioning pressure cap 5, rotate the adjusting screw 2, adjust the wheel hub to a suitable height, and then tighten the positioning screw 6 to prevent the spring floating mechanism 3 from loosening.

[0020] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A wheel hub processing positioning mechanism, including a central base, characterized in that: The central base is provided with an inner cavity. A through hole is provided at the bottom of the inner cavity, and an adjustable screw capable of freely rotating is installed. A spring floating mechanism capable of lifting in the inner cavity is installed in the inner cavity. A lifting adjustment threaded hole is provided at the bottom of the spring floating mechanism, and it is in threaded fit connection with the adjustable screw. A conical positioning pressing cap is fixed to the upper end of the spring floating mechanism.

2. The hub processing positioning mechanism according to claim 1, characterized in that: The conical positioning pressing cap is fixed to the upper end of the spring floating mechanism through a screw.

3. The hub processing positioning mechanism according to claim 1, characterized in that: The spring floating mechanism includes a lifting seat, a spring and a floating member. The lifting seat is provided with a floating concave cavity. The floating member is installed in the floating concave cavity in a liftable manner, and a limiting groove with a certain stroke is provided on the side wall of the floating member. A limiting nail cooperating with the limiting groove is provided on the side wall of the lifting seat. The spring is arranged between the lifting seat and the floating member. A space for accommodating the spring is provided at the bottom of the floating member. The lifting adjustment threaded hole is provided at the bottom of the lifting seat.

4. A wheel hub processing positioning mechanism according to claim 3, characterized in that: The floating member includes a lower component and an upper component. The lower component and the upper component are fixedly butted through screws.

5. A hub processing positioning mechanism according to claim 3, characterized in that: The limiting groove is in the structure of a kidney-shaped hole.

6. The hub machining positioning mechanism according to claim 3, characterized in that: A plurality of locking and positioning threaded holes are provided on the side wall of the central base, and positioning screws are installed.

7. A hub machining positioning mechanism according to claim 6, characterized in that: A positioning card slot corresponding to the locking and positioning threaded holes is provided on the side wall of the lifting seat.

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