Simple auxiliary device for processing lug holes
Technical Field
The utility model relates to the technical field of aviation mechanical part machining devices, in particular to a simple auxiliary device for machining lug holes.
Background
In the production and processing of aviation mechanical parts, parts with lug structural characteristics are frequently encountered, and precision holes with certain size requirements are formed in lugs of the parts, and for processing of the lug holes, on one hand, the hole size precision and hole position requirements are guaranteed, and on the other hand, the minimum lug wall thickness is considered, so that the design strength requirements are met. However, in actual operation, because the lug has certain stress deformation after the heat treatment or the repeated milling processing of the part, the processing precision of the conventional drilling machine is not high, or the positioning and clamping of the part are not accurate, the processed lug wall thickness is uneven, and further a part of lug holes are elliptical, so that batch production quality faults are caused, and delivery is affected.
Disclosure of utility model
The utility model solves the technical problem of providing a simple auxiliary device for processing lug holes so as to solve the problems in the background art.
The technical problems solved by the utility model are realized by adopting the following technical scheme:
a simple auxiliary device for machining lug holes comprises a base body and workpieces, wherein base body sunken grooves for accommodating the workpieces are symmetrically formed in the base body, meanwhile, avoidance holes are formed in one side of each base body sunken groove, positioning holes for inserting positioning pins to position the whole auxiliary device and countersunk holes for loading clamping bolts to clamp and fasten the whole auxiliary device are formed in two ends of the base body respectively, the matched positioning pins are inserted into the positioning holes to be used for positioning the whole auxiliary device, the clamping bolts are loaded into the countersunk holes to be used for clamping and fastening the whole auxiliary device after positioning, the avoidance holes are prefabricated to place the workpieces in the base body sunken grooves, three-face positioning is achieved by enabling the outer side walls of the workpieces after numerical control machining to be abutted against the inner side walls of the base body sunken grooves, and after the workpieces are positioned, the workpieces are clamped and fastened by a clamping plate on the surfaces of the workpieces, so that lug holes can be machined.
In the present utility model, the base body is provided with a housing hole for housing the base body so as to house the plurality of auxiliary devices.
In the utility model, the depth of the substrate sinking groove is larger than the thickness of the workpiece, so that the workpiece can be positioned conveniently.
In the utility model, one side of the substrate sinking groove is provided with two avoidance holes, one of the avoidance holes is positioned on the corner of the substrate sinking groove, and the other avoidance hole is not contacted with the two corners on the same side of the substrate sinking groove so as to avoid the corner of the side wall of the workpiece.
In the utility model, the shape of the avoidance hole is the same as that of the contact surface of the workpiece corner, so that the workpiece corner is prevented from being damaged in the machining process.
Advantageous effects
1) The utility model can realize the rapid positioning and clamping of the workpiece, saves time and labor, and greatly improves the batch production clamping efficiency of the parts;
2) The utility model can ensure the one-time processing and forming of the machine tool drilling and reaming, improve the processing quality and the process maturity of the holes, effectively reduce the rate of batch production waste and defective products, and meet the technical requirements of design strength and the like;
3) The utility model has the advantages of popular and easily understood application principle, mass production, full consideration of the problems of difficult actual clamping, difficult positioning and the like, convenient and quick operation and maintenance of workers, obvious production effect and good mass production and processing benefits.
Drawings
FIG. 1 is a top view of a preferred embodiment of the present utility model.
Fig. 2 is a front view of a preferred embodiment of the present utility model.
FIG. 3 is a schematic view of a process assembly of a preferred embodiment of the present utility model.
Fig. 4 is an axial schematic view of a workpiece processing assembly according to a preferred embodiment of the utility model.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Referring to fig. 1-4, a simple auxiliary device for processing lug holes comprises a base body 1, a positioning hole 2, countersunk holes 3, avoiding holes 4, base body subsidence grooves 5, positioning pins 6, workpieces 7 and clamping bolts 8, wherein the base body 1 is symmetrically provided with base body subsidence grooves 5 for accommodating the workpieces 7, meanwhile, one side of each base body subsidence groove 5 is provided with each avoiding hole 4, two ends of the base body 1 are respectively provided with the positioning holes 2 for inserting the positioning pins 6 and the countersunk holes 3 for loading the clamping bolts 8, the matched positioning pins 6 are inserted into the positioning holes 2 for positioning of the whole auxiliary device, the clamping bolts 8 are loaded into the countersunk holes 3 for clamping and fastening after positioning of the whole auxiliary device, the avoiding holes 4 are used for placing the workpieces 7 in the base body subsidence grooves 5, three-face positioning is achieved by the outer side walls of the workpieces 7 after numerical control processing are abutted against the inner side walls of the base body subsidence grooves 5, and after the workpieces 7 are positioned, lug holes can be processed by lapping and fastening the surface pressing plates on the surfaces of the workpieces 7.
In this embodiment, the base 1 is provided with a storage hole for storing the base 1, and after the auxiliary device is used, a pin shaft can be inserted into the storage hole to store a plurality of auxiliary devices.
In this embodiment, the depth of the substrate recess 5 is greater than the thickness of the workpiece 7 to facilitate positioning of the workpiece 7.
In this embodiment, two avoidance holes 4 are provided on one side of the substrate subsidence groove 5, one of the avoidance holes 4 is located on a corner of the substrate subsidence groove 5, and the other avoidance hole 4 is not in contact with two corners on the same side of the substrate subsidence groove 5, so as to avoid a corner of a side wall of the workpiece 7.
In this embodiment, the shape of the contact surface of the avoiding hole 4 and the corner of the workpiece 7 is the same, so as to prevent the corner of the workpiece 7 from being damaged during the machining process.
In this embodiment, the following steps are used:
The first step, positioning and fastening an auxiliary device, wherein the auxiliary device is positioned through a positioning hole 2 on a base body 1, and after positioning, the auxiliary device is fastened on a workbench surface through a clamping bolt 8;
Positioning and clamping the part, namely placing the workpiece 7 in the substrate sinking groove 5, positioning the outer side wall of the workpiece 7 against the inner side wall of the substrate sinking groove 5 after numerical control machining, and fastening a pressing plate on the surface of the workpiece 7 after positioning to realize final clamping of the workpiece 7;
Thirdly, when the lug holes are machined, the position coordinates of the hole centers are fixed and ensured by the machine tool setting, the depth of the machined holes is ensured by the Z value of the machine tool, the lug holes can be machined and molded once, the minimum wall thickness of the lug rings is ensured, and the interference of human factors is reduced;
And fourthly, taking down the workpiece 7, and checking delivery.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.