A kind of cutter processing drum barrel ultra-deep inner chamber
The utility model belongs to aero engine technology field, particularly relates to a kind of cutter processing drum barrel ultra-deep inner chamber, is mainly used in the processing of aero-engine drum barrel inner cavity of component.
Aero-engine new construction drum barrel emerges in an endless stream, and drum barrel die cavity is dark, and difficulty of processing is large.Traditional drum barrel inner-cavity structure, as shown in Figure 1, the degree of depth of weld seam working position is less than core size; Adopt existing process tool, knife plate is arranged on the working position connecing and handle can be directly to and reach drum barrel inner chamber, adopts left and right two process tools to process.The structure of existing process tool, as shown in Figure 1, knife plate is connected by bolt with handle of a knife, and handle of a knife is arranged on cutter holder by bolt tightening again, is affected by human factors larger.The rigidity of cutter is poor, and work in-process easily produces vibration, affects the crudy of product; And the positioning transfer of cutter, installation accuracy and working (machining) efficiency are all relatively low.
In addition, the degree of depth of the weld seam working position of new construction drum barrel is greater than core size, adopts existing process tool directly to arrive and cuts position, cannot process, the ultra-deep inner-cavity structure of new construction drum barrel, as shown in Figure 2.
Utility model content
For prior art Problems existing, the utility model provides a kind of cutter that effectively can ensure the processing drum barrel ultra-deep inner chamber of ultra-deep inner cavity weld seam machining accuracy and crudy.
To achieve these goals, the utility model adopts following technical scheme, a kind of cutter processing drum barrel ultra-deep inner chamber, comprise knife plate and two blades, described blade is arranged on the front end of knife plate, the rear end of knife plate connects handle be located by connecting by being arranged on the mouse dental structure of knife plate rear end face and alignment pin and capto, and passes through bolt tightening; In described knife plate, be provided with inner-cooling structure, the outlet of described inner-cooling structure is arranged on the front end of knife plate, and capto connects handle and is connected with receiver.
Described blade adopts diamond shaped insert.
Described knife plate is provided with damping block.
Described damping block is set to two.
The beneficial effects of the utility model:
1, cutter of the present utility model adopts hilted broadsword plate double blade structure, can reduce and change knife plate and tool setting number of times; Knife plate of the present utility model is provided with damping block, can effectively suppresses to process chatter; The utility model selects capto to connect handle, realizes the fast automatic centering of handle of a knife and receiver, and ensures switching precision (0.002mm) therebetween; Knife plate of the present utility model and capto are connect handle and are located by mouse dental structure and alignment pin, and be bolted to connection, capto connects between handle and receiver and adopts capto self-centering to transfer, and improves the rigidity of cutter and location, installation accuracy, improves the crudy of piece surface;
2, work in-process, knife plate and capto connect handle and only need install once, pass through shirtsleeve operation, capto can be realized connect and to split quickly and accurately between handle and receiver and connect, reach and cutter is sent into drum barrel inner chamber, take out the object of cutter after processing, thus complete the processing of drum barrel ultra-deep inner chamber at different levels and effectively ensure weld seam machining accuracy and crudy;
3, cutter of the present utility model has project organization novelty, rationally, and location, switching precision are high, cutter good rigidly, is easy to features such as installing, crudy is stable; Meet the process requirements of drum barrel ultra-deep inner chamber, and efficiently solve the technical barriers such as cutter interference, working position cutter is unreachable, crudy is uncontrollable, machined surface quality is unstable; Change the design concept of traditional drum tube inner chamber process tool, breach the key problem in technology of ultra-deep inner chamber drum barrel process tool design, fill up the technological gap of domestic air mail manufacturing industry ultra-deep inner chamber drum barrel processing.Along with the continuous increase of product demand, this achievement, by playing larger effect, producing larger benefit, has profound significance.Cutter of the present utility model can be promoted the use of in aero-engine, power combustion engine identical structure drum barrel part, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is traditional drum barrel inner-cavity structure and the structural representation of existing process tool;
Fig. 2 is the ultra-deep inner-cavity structure schematic diagram of new construction drum barrel;
Fig. 3 is the structural representation of knife plate of the present utility model;
Fig. 4 is the top view of Fig. 3;
Fig. 5 structural representation that to be knife plate of the present utility model with capto connect after handle is connected;
Fig. 6 be knife plate of the present utility model connect handle with capto and receiver be connected after structural representation;
Fig. 7 is the A-A sectional view of Fig. 6;
Fig. 8 is cutter tool setting schematic diagram of the present utility model;
Fig. 9 is that capto connects handle and receiver decomposes the rear schematic diagram sending into drum barrel inner chamber;
Figure 10 be after sending into drum barrel inner chamber capto connect handle be again connected with receiver after schematic diagram;
Figure 11 is the schematic diagram on tool sharpening drum barrel inner chamber top of the present utility model;
Figure 12 is the schematic diagram of cutter of the present utility model tune clamping aft-loaded airfoil drum barrel inner chamber bottom;
In figure: 1-handle of a knife, 2-bolt, 3-inner-cooling structure, 4-knife plate, 5-drum barrel, 6-blade, 7-damping block, 8-mouse dental structure, 9-alignment pin, 10-capto connects handle, 11-receiver, feeler block in 12-machine.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Fig. 3 ~ Fig. 7, a kind of cutter processing drum barrel ultra-deep inner chamber, comprise 80 °, R0.4 diamond shaped insert 6 of knife plate 4 and two standards, described blade 6 is arranged on the front end of knife plate 4, the rear end of knife plate 4 connects handle 10 by the mouse dental structure 8 and alignment pin 9 being arranged on knife plate 4 rear end face with capto and is located by connecting, and is tightened up by bolt 2; In described knife plate 4, be provided with inner-cooling structure 3, the outlet of described inner-cooling structure 3 is arranged on the front end of knife plate 4, ensures that cooling fluid is ejected into point of a knife position, and capto is connect handle 10 and transferred by capto self-centering with receiver 11, ensures the positioning precision of switching.Described knife plate 4 is provided with two damping blocks 7, prevents cutter from producing resonance when machining.
Cutter of the present utility model to ensure mouse dental structure 8 accurate, fit tightly, and by four fastening connections of bolt 2, to improve faying face connection precision and rigidity.
A use procedure of cutter of the present utility model is described below in conjunction with accompanying drawing:
Step one: as shown in Figure 8, cutter carries out tool setting in machine (two blade tool settings respectively up and down) by feeler block in machine 12;
Step 2: as shown in Figure 9, connects handle 10 and decomposes from receiver 11, unload (receiver 11 clamping is on lathe tool rest) by capto, sent into the front end of knife plate 4 in drum barrel 5 inner chamber;
Step 3: as shown in Figure 10, Figure 11, then capto is connect handle 10 and be arranged on (receiver 11 clamping is on lathe tool rest) in receiver 11, use blade above to be completed the processing of a drum barrel inner cavity weld seam by numerical control program;
Step 4: as shown in Figure 9, connects handle 10 and decomposes from receiver 11, unload, shifted out by knife plate 4 from drum barrel 5 inner chamber by capto;
Step 5: as shown in figure 12, reverses end for end clamping by part, repeat step one ~ step 4, uses blade below to be completed the processing of drum barrel another one inner cavity weld seam by numerical control program.