Fine machining clamping tool for wind power spline shaft

Abstract

The utility model provides a wind power spline shaft finish machining clamping tool. The wind power spline shaft finish machining clamping tool is characterized in that a first four-jaw chuck and a second four-jaw chuck are inserted into and reversely supported and fixed to inner holes in the two ends of a spline shaft respectively; a third four-jaw chuck connected with a rotating shaft of machining equipment clamps the outer circle of the first four-jaw chuck, a center hole is formed in the end face of a second four-jaw chuck, and a center of an equipment tailstock abuts against the center hole. And the dial indicator is matched with the shaft neck excircles of the first four-jaw chuck and the second four-jaw chuck. According to the utility model, one turning and clamping procedure is reduced in the finish machining procedure of the wind power spline shaft, so that the finish turning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of tooling, in particular to a wind power spline shaft finishing clamping tooling. Background Art

[0002] Wind power generation has developed rapidly in recent years due to its advantages such as zero pollution and low construction cost.

[0003] In wind turbine gearboxes, spline shafts are important power and torque transmission components. The shaft necks must be equipped with bearings and meshing low-speed gears, which places high demands on machining efficiency and quality. The processing sequence of spline shafts is rough turning of the blanks, tempering, fine machining, and finally assembly and gear shaping. After tempering, the workpiece has a lot of oxide scale on the surface, and the black scale cannot be marked. Fine machining requires machining one end and then turning around to machine the other side. Clamping twice reduces work efficiency.

[0004] This solution allows for quick one-time clamping, and the coaxiality of the journal can be guaranteed if the four-jaw chuck on the clamp is marked as qualified. There is no need to worry about the problem of black skin being unable to be marked, nor is there a need to process one end and then turn around to process the other side. Utility Model Content

[0005] The utility model provides a wind turbine spline shaft finishing clamping tool, which aims to solve the shortcomings of the prior art and reduce one turning and clamping process in the wind turbine spline shaft finishing process, thereby improving the finishing machining efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Wind power spline shaft finishing clamping tooling, characterized by:

[0008] The first four-jaw chuck and the second four-jaw chuck are respectively inserted into and fixed in the inner holes at both ends of the spline shaft;

[0009] The third four-jaw chuck connected to the rotating shaft of the machining equipment clamps the outer circle of the first four-jaw chuck, the end face of the second four-jaw chuck has a center hole, and the top of the tailstock of the equipment presses against the center hole;

[0010] The dial indicator is matched with the outer circle of the shaft journal of the first four-jaw chuck and the second four-jaw chuck.

[0011] The utility model is beneficial in that:

[0012] The clamping method of the utility model can be clamped quickly once through this scheme. The coaxiality of the shaft neck can be guaranteed by marking the four-jaw chuck on the clamping device as qualified, without considering the problem that the black skin cannot be marked. It also solves the problem of processing one end and then turning around to process the other side in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0015] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work. In order to facilitate the understanding of the utility model, the following will be combined with the drawings and specific embodiments to explain the utility model in more detail.

[0016] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0017] like Figure 1 As shown:

[0018] The use process of this utility model tooling:

[0019] 1. The workpiece, i.e., the two ends of the spline shaft 4 are respectively installed into the first four-jaw chuck 1 and the second four-jaw chuck 2, which are respectively inserted into the inner holes at both ends of the spline shaft 4, the first four-jaw chuck 1 is reversely supported and fixed to the inner hole 41 at one end of the spline shaft 4, and the second four-jaw chuck 2 is reversely supported and fixed to the inner hole 42 at the other end of the spline shaft 4;

[0020] 2. The spline shaft 4 equipped with the first four-jaw chuck 1 and the second four-jaw chuck 2 is hoisted onto the machining equipment as a whole, wherein the machining equipment is provided with a larger third four-jaw chuck 3, the third four-jaw chuck 3 is connected to the rotating shaft of the machining equipment, the third four-jaw chuck 3 clamps the outer circle of the first four-jaw chuck 1, the right end face of the second four-jaw chuck 2 has a center hole, and the top 5 of the tailstock of the equipment presses against the center hole of the second four-jaw chuck 2;

[0021] 3. Use the dial indicator 6 to mark the outer circles of the journals with the first four-jaw chuck 1 and the second four-jaw chuck 2 respectively, align the first four-jaw chuck 1 and the second four-jaw chuck 2, and ensure the coaxiality of the outer circles of the journals of the spline shaft 4 during processing.

[0022] The conventional solution of the prior art is: a four-jaw chuck connected to the rotating shaft on the machining equipment directly clamps the outer circle of one end of the spline shaft, and the outer circle of the other end of the spline shaft is clamped by another four-jaw chuck and pressed against the center hole of the four-jaw chuck by the top of the tailstock of the equipment; since the outer circle of the spline shaft is used for clamping and has black skin, it cannot be processed to size, and one end of the shaft neck needs to be polished for U-turn processing; that is, after the outer circle of one end of the spline shaft is fine-turned, it is turned around, and then the four-jaw chuck and the top are installed, and the clamping is completed by one clamping and one pushing; the clamping method of the utility model can avoid U-turning and repeated clamping, thereby improving efficiency.

[0023] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. Wind power spline shaft finishing clamping tooling, characterized by: The first four-jaw chuck and the second four-jaw chuck are respectively inserted into and supported and fixed in the inner holes at both ends of the spline shaft; the third four-jaw chuck connected to the rotating shaft of the machining equipment clamps the outer circle of the first four-jaw chuck, and the end face of the second four-jaw chuck has a center hole, and the top of the equipment tailstock presses against the center hole; the dial indicator cooperates with the outer circle of the shaft neck of the first four-jaw chuck and the second four-jaw chuck.

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