Deep hole drill for machining multi-aperture concentric circular holes
Technical Field
The utility model relates to the field of deep hole drilling, in particular to a deep hole drill for machining multi-aperture concentric round holes.
Background
Deep hole processing technology occupies an important role in the field of machining, and is widely applied, however, the existing deep hole drill can only drill holes with single aperture at one time when drilling, when multi-aperture concentric circular holes are required to be processed, drill bits with different specifications are often required to be replaced frequently, so that the operation complexity is increased, the processing efficiency is reduced, and in addition, concentricity is difficult to ensure due to repeated replacement of the drill bits, and the processing quality is affected.
Secondly, in the process of drilling holes twice, the height difference of the holes is not easy to control, the accuracy in the two times of drilling holes is not easy to control, and the defect of positioning accuracy can lead to inaccurate position relation among holes and affect the overall performance of a workpiece.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model aims to provide a deep hole drill for machining multi-aperture concentric circular holes, which solves the technical problems of how to drill multi-aperture concentric circular holes efficiently and how to realize flexible adjustment of the depth of the concentric circular holes.
In order to solve the problems in the prior art, the technical scheme of the utility model is as follows:
The utility model provides a concentric round hole processing of multiporous bore is with deep hole, including the drill shank, the drill shank bottom is equipped with the drilling rod, the helicla flute has been seted up in the drilling rod outside, the outside slip cap of drill shank is equipped with wide footpath and bores, the outside equidistance of wide footpath bores has been seted up the sword groove, the equal fixedly connected with blade in bottom one side of every sword groove, drill shank top cover has the sleeve, the sleeve top is equipped with the connecting handle, the sleeve has all symmetrically been seted up in the outside with wide footpath bores the screw hole, the round hole has been seted up to the inside equidistance of drill shank, wide footpath bores and the inside locating bolt that all is equipped with of sleeve, locating bolt penetrates from the screw hole that one side corresponds, run through the round hole that corresponds in terminal threaded connection at opposite side screw hole.
Preferably, a straight groove is formed in one end of each positioning bolt, so that the positioning bolts can be conveniently screwed or loosened, and the operation can be more quickly performed when the position of the wide diameter drill relative to the drill handle is required to be adjusted or the wide diameter drill is required to be disassembled.
Preferably, the top of the wide-diameter drill is symmetrically provided with liquid injection holes, so that cooling liquid or lubricant is allowed to be injected into the blade area of the wide-diameter drill in the drilling process, the temperature of the blade is reduced, abrasion is reduced, and the drilling precision and surface quality are improved.
Preferably, the grooves are formed in the four side faces of the connecting handle, so that the contact area between the connecting handle and a drilling machine or other connecting devices is increased, and the stability and reliability of connection are improved.
Preferably, the outer surface of the drill rod is coated with a wear-resistant coating, so that the surface of the drill rod is protected, and the service life of the drill rod is prolonged.
Preferably, the drill shank is of a straight quadrangular shape, can bear larger torque and axial force, and four sides of the drill shank are provided with round chamfers, so that the drill shank is more comfortable to hold.
Preferably, the bottom of the wide diameter drill is provided with inclined surfaces between the blade grooves, which are helpful for guiding the cuttings and coolant to flow out of the drilling area during the drilling process.
Compared with the prior art, the utility model has the following advantages:
1. The utility model can rapidly drill two concentric holes which are large, small, shallow and deep on the surface of a workpiece by combining the double operations of the small hole drill and the wide diameter drill which are formed by the drill rod and the drill handle, and the design not only improves the drilling efficiency, but also ensures the concentricity and the precision of the holes and meets the requirement of complex workpiece processing.
2. The wide-diameter drill is assembled with the drill handle through the positioning bolt, the assembly and disassembly are convenient and quick due to the design, and more importantly, the fixing position of the wide-diameter drill can be flexibly adjusted according to the positions of different round holes on the drill handle, so that the height difference of the drilled holes between the drill rod and the wide-diameter drill is changed, and the adjustability provides wide adaptability for different workpieces and processing requirements.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of the drill rod structure of the present utility model.
Fig. 3 is a schematic view of the structure of the connecting handle of the present utility model.
Fig. 4 is a schematic view of the structure of the wide diameter drill of the present utility model.
Reference numeral 1, drill shank; 2, a drill rod, 3, a spiral groove, 4, a wide diameter drill, 5, a blade groove, 6, a blade, 7, a sleeve, 8, a connecting handle, 9, a threaded hole, 10, a round hole, 11, a positioning bolt, 12, a straight groove, 13 and a liquid injection hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
The deep hole drill for machining the multi-aperture concentric circular holes is provided with a drill shank 1;
As shown in fig. 1 to 4, a drill rod 2 is arranged at the bottom end of a drill handle 1, a spiral groove 3 is formed in the outer side of the drill rod 2, a wide diameter drill 4 is sleeved on the outer side of the drill handle 1 in a sliding mode, blade grooves 5 are formed in the outer side of the wide diameter drill 4 in an equidistant mode, blades 6 are fixedly connected to one side of the bottom of each blade groove 5, a sleeve 7 is sleeved at the top end of the drill handle 1, a connecting handle 8 is arranged at the top of the sleeve 7, threaded holes 9 are symmetrically formed in the sleeve 7 and the outer side of the wide diameter drill 4, round holes 10 are formed in the drill handle 1 in an equidistant mode, positioning bolts 11 are arranged in the wide diameter drill 4 and the sleeve 7, the positioning bolts 11 penetrate through the threaded holes 9 corresponding to one side, and the corresponding round holes 10 are in threaded connection with the tail ends of the threaded holes 9 on the other opposite side;
The drill body comprises two parts, one part is a small hole drill consisting of a drill rod 2 and a drill shank 1, the other part is a wide-diameter drill 4 assembled on the drill shank 1, in the drilling process, the drill rod 2 and the wide-diameter drill 4 jointly work, two concentric holes which are large, small and shallow and deep are drilled on the surface of a workpiece, the wide-diameter drill 4 is assembled with the drill shank 1 through a positioning bolt 11, assembly and disassembly are convenient, the wide-diameter drill 4 can be fixed in different areas by utilizing the positioning bolt 11 according to the positions of different round holes 10 on the drill shank 1, the height difference of the drilled holes between the drill rod 2 and the wide-diameter drill 4 is adjusted, the drill shank 1 is assembled with a sleeve 7 through the positioning bolt 11, and a connecting shank 8 used for extending the length of the drill shank 1 after the assembly of the wide-diameter drill 4 is arranged on the sleeve 7, so that the assembled drill bit can be assembled with a drilling machine better.
As shown in fig. 1 to 4, one end of the positioning bolt 11 is provided with a straight slot 12, so that screwing and unscrewing operations can be conveniently performed by using tools such as a straight screwdriver.
As shown in fig. 1 to 4, the top of the wide diameter drill 4 is symmetrically provided with liquid injection holes 13, and the liquid injection holes 13 can provide cooling and lubrication for the blade 6 in the drilling process.
As shown in fig. 1 to 4, the four sides of the connection shank 8 are each provided with grooves which facilitate the connection of the connection shank 8 to the drilling machine.
As shown in fig. 1 to 4, the outer surface of the drill rod 2 is coated with a wear-resistant coating, further enhancing the wear resistance and the service life of the drill rod 2.
As shown in fig. 1 to 4, the drill shank 1 is in a straight quadrangular prism shape, and four sides of the drill shank 1 are provided with round chamfers, so that the wide diameter drill 4 is more firmly sleeved outside the drill shank 1 and is more comfortable to hold.
As shown in fig. 1 to 4, the bottom of the wide diameter drill 4 is provided with inclined surfaces between the blade grooves 5, which inclined surfaces help to guide the chips and coolant to flow out of the drilling area during drilling, prevent clogging and affect drilling efficiency.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.