CN205324810U - Two -sided chamfer combination cutting tool drills - Google Patents

Abstract

The utility model provides a two -sided chamfer combination cutting tool drills, including handle of a knife, chamfer blade and drilling cutter piece, the handle of a knife is hollow structure, and the lower extreme of handle of a knife is opened has an edge of a knife, the chamfer blade is installed in the handle of a knife, and the chamfer blade includes cutter arbor and tool bit, the cutter arbor top is fixed in the upper end of handle of a knife through adjusting bolt activity, and a shop bolt is passed at the middle part of cutter arbor, the perisporium of tool bit from going out the edge of a knife and stretching out the handle of a knife, the bottom at the handle of a knife is fixed through a fastening bolt to the drilling cutter piece. The utility model discloses a set up chamfer blade and drilling cutter piece, can once can accomplish drilling and chamfer operation in the single step process, the chamfer blade adopts lever structure principle simultaneously, has the regulatory function, can control the chamfer size to simplify the process, improved machining efficiency, reduced manufacturing cost.

Description

A compound tool for drilling double-sided chamfering

technical field

The utility model belongs to the technical field of machinery and relates to a cutting tool, in particular to a drilling double-sided chamfering compound cutting tool.

Background technique

Now when the parts are drilled, burrs will be formed on both sides of the parts, which are generally removed by secondary processing and chamfering; in this way, the operation action will be repeated three times (drilling, front chamfering, back chamfering), resulting in production efficiency low.

In response to the above problems, people have designed various drilling tools, some of them put the drilling tool and the chamfering tool on the same handle, first adjust the position of the tool handle so that the drilling tool is facing the part to be processed , and then drill the parts, and then adjust the position of the tool holder so that the chamfering tool is facing the hole machined on the part, then chamfer the hole machined on the part, and finally take out the processed part. Although it is convenient to change the processing tool like this, the effect is still unsatisfactory, and the production efficiency is still low.

Utility model content

The utility model aims at the deficiencies of the prior art, and provides a drilling double-sided chamfering compound tool, which combines the drilling and chamfering tools, and the operation action can be completed by one feeding, and the burrs can be removed on both sides of the through hole of the workpiece at the same time. Chamfering correction can effectively reduce the labor intensity of operators and improve work efficiency.

The technical scheme provided by the utility model is as follows: a drilling double-sided chamfering compound tool, including a handle, a chamfering blade and a drilling blade, is characterized in that: the handle is a hollow structure, and the lower end of the handle has a The edge of the knife, the chamfering blade is installed in the knife handle, the chamfering blade includes a knife bar and a knife head, the top of the knife bar is movably fixed on the upper end of the knife handle by an adjusting bolt, the middle part of the knife bar passes through a positioning pin, The cutter head protrudes from the peripheral wall of the handle of a knife from the cutting edge, and the drilling blade is fixed on the bottom end of the handle of a knife through a fastening bolt.

Further, a positioning groove is formed in the middle of the knife rod, and the positioning groove is snapped into the positioning pin.

Further, the adjusting bolt includes a rotating rod and a threaded platform formed by protruding upwards at both ends of the rotating rod, the threaded platform is provided with a threaded structure, the rotating rod passes through the peripheral wall of the knife handle, and the threaded platform is threadedly connected with the peripheral wall of the knife handle, The area between the two threaded lands forms a holding end, and the top end of the knife rod is embedded in the holding end.

Further, the top end of the knife rod protrudes upwards to form a holding block, and the holding block is embedded in the holding end.

Further, the cutter head is a double-sided chamfered cutter head.

Further, an elastic device is arranged in the handle, one end of the elastic device is fixed on the inner wall of the handle, and the other end is held against the back of the cutter head.

Further, the positioning pin includes a threaded joint and a positioning rod, the threaded joint is connected to the end of the snap-in end, the connection between the threaded joint and the snap-in end forms a supporting surface, the threaded joint is threadedly connected to the handle, and the positioning rod Inserts into the handle and passes through the shank.

Further, a positioning slot is formed in the middle of the knife rod, the positioning rod passes through the positioning slot, and the positioning slot is held against the supporting surface.

Further, the drilling blade adopts a magic drill or an indexable drill.

Compared with the prior art, the utility model can complete the drilling and chamfering operations in a single-step process by setting the chamfering blade and the drilling blade. At the same time, the chamfering blade adopts the principle of lever structure and has the adjustment function. The size of the chamfer can be controlled, thereby simplifying the process, improving the processing efficiency and reducing the manufacturing cost.

Description of drawings

Accompanying drawing 1 is the front view of the drilling double-sided chamfering compound tool described in the utility model;

Accompanying drawing 2 is the structural representation of chamfering blade shown in accompanying drawing 1;

Accompanying drawing 3 is the structural representation of adjusting bolt shown in accompanying drawing 1;

Accompanying drawing 4 is the structural representation of positioning pin shown in accompanying drawing 1;

Accompanying drawing 5 is the sectional view of positioning pin shown in accompanying drawing 1;

Accompanying drawing 6 is the cross-sectional structure schematic diagram of the drilling double-sided chamfering composite cutter of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. For example, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

As shown in Figure 1, a drilling double-sided chamfering composite tool includes a handle 1, a chamfering blade 2 and a drilling blade 3, the handle 1 is a hollow structure, the lower end of the handle 1 has a knife edge 11 , the chamfering blade 2 is installed in the handle 1, and the chamfering blade 2 includes a knife bar 21 and a cutter head 22, and the top end of the knife bar 21 is movably fixed on the upper end of the knife handle 1 by an adjusting bolt 23, and the knife bar 21 The middle part passes through a positioning pin 24, and the tool bar 21 can rotate with the positioning pin 24 as a fulcrum, and the cutter head 22 stretches out from the knife edge 11 to the surrounding wall of the knife handle 1, and the drilling blade 3 is fixed on it by a fastening bolt 31. The bottom end of handle 1.

The knife handle 1 is cylindrical, and a plurality of screw holes (not shown in the figure) are arranged on the knife handle 1, and the screw holes are used for fixing bolts to pass through to fix the blade.

The cutter head 22 is a double-sided chamfering cutter head, which can remove burrs and chamfers on both sides of the hole at one time during work. As shown in Figure 6, an elastic device 25 is arranged in the handle 1, and one end of the elastic device 25 is fixed on the knife. On the inner wall of the handle 1, the other end is held on the back of the cutter head 22. The elastic device 25 can ensure that the cutter head 22 has a certain support strength during processing, and can also adjust the length of the cutter head 22 stretching out of the knife edge 11. When adjusting the distance that the cutter head 22 stretches out of the knife handle 1 from the knife edge 11, as when the adjusting bolt 23 is rotated inwardly, the adjusting bolt 23 drives the upper end of the cutter bar 21 to move inwardly, and the cutter bar 21 rotates with the positioning pin 24 as a fulcrum, The distance that the cutter head 22 protrudes from the knife edge 11 to the handle 1 becomes larger, otherwise the distance from the cutter head 22 to the knife handle 1 from the knife edge 11 increases and decreases, that is, the leverage principle is used to meet different drilling requirements.

The chamfering blade 2 is used for removing burrs and chamfering. As shown in FIG. The positioning pin 24 is a fulcrum and rotates up and down. As shown in Figure 3, the adjustment bolt 23 includes a threaded platform 232 formed by the two ends of the rotating rod 231 and the rotating rod 232 protruding upwards. The threaded platform 232 is provided with a threaded structure. The rod 232 passes through the peripheral wall of the handle 1, and the threaded platform 232 is threadedly connected with the peripheral wall of the handle 1, and the area between the two threaded platforms 232 forms a holding end 233, and the top end of the knife rod 21 is embedded in the holding end 233 , further, the top of the knife rod 21 protrudes upwards to form a jacking block 211, the jacking block 211 is embedded in the jacking end 233, by rotating the rotating rod 232, the threaded table 232 drives the jacking block 211 along the positioning pin 24 Rotate as a fulcrum, so that the cutter head 22 protrudes from the knife outlet 11 to the peripheral wall of the handle 1 , thereby adjusting the protruding length of the cutter head 22 .

As shown in Figures 4 and 5, the positioning pin 24 includes a threaded joint 241 and a positioning rod 242, the threaded joint 241 is connected to the end of the snap-in end 242, and the connection between the threaded joint 241 and the snap-in end 242 is formed. A supporting surface 243, the threaded joint 241 is threadedly connected with the handle of a knife 1, the positioning rod 242 is inserted into the handle of a knife 1 and passes through the positioning groove 212 of the knife rod 21, and the positioning groove 212 is supported by the supporting surface 243, so through Rotate the threaded joint 241, and the supporting surface 243 pushes the cutter bar 21 for fine adjustment so as to adjust the angle of the cutter head 22, which is convenient for chamfering of different sizes.

The drilling blade 3 is a magic drill or an indexable drill.

During the machining of this drilling tool, the drilling blade 3 rotates and feeds downwards. The drilling blade 3 first contacts the workpiece to start drilling. The inner edge of the drilled hole is chamfered, so that the drilling and chamfering are completed at one time, which simplifies the process, improves the processing efficiency, and reduces the manufacturing cost. During use, the cutter head 22 is worn out. At this time, adjust the adjusting bolt 23 to adjust the distance that the cutter head 22 extends out of the knife handle 1 from the knife edge 11, and then it can continue to be used. , adjusting the positioning pin 24 can adjust the angle of the cutter head 22 .

The utility model can complete the drilling and chamfering operations in a single-step process by setting the chamfering blade and the drilling blade. At the same time, the chamfering blade adopts the principle of lever structure and has an adjustment function, which can control the size of the chamfering, thereby The process is simplified, the processing efficiency is improved, and the manufacturing cost is reduced.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (9)

1. A drilling double-sided chamfering compound tool, comprising a handle (1), a chamfering blade (2) and a drilling blade (3), characterized in that: the handle (1) is a hollow structure, the handle The lower end of (1) has a knife edge (11), and described chamfering blade (2) is installed in the handle of a knife (1), and chamfering blade (2) comprises knife bar (21) and cutter head (22), so The top of the knife bar (21) is movably fixed on the upper end of the knife handle (1) by an adjusting bolt (23), the middle part of the knife bar (21) passes through a positioning pin (24), and the knife head (22) exits from the edge of the knife ( 11) Stretch out the peripheral wall of the handle (1), and the drilling blade (3) is fixed on the bottom end of the handle (1) by a fastening bolt (31). 2. The drilling double-sided chamfering compound tool according to claim 1, characterized in that: a positioning groove (212) is opened in the middle of the tool rod (21), and the positioning groove (212) is snapped into the positioning pin (24 )Inside. 3. The drilling double-sided chamfering compound tool according to claim 1, characterized in that: the adjusting bolt (23) includes a threaded platform ( 232), the threaded platform (232) is provided with a threaded structure, and the rotating rod (232) passes through the peripheral wall of the handle of a knife (1), and the threaded platform (232) is threadedly connected with the peripheral wall of the handle of a knife (1), and the two threaded platforms ( The area between 232) forms a holding end (233), and the top end of the knife rod (21) is embedded in the holding end (233). 4. The drilling double-sided chamfering compound tool according to claim 3, characterized in that: the top of the tool rod (21) protrudes upwards to form a top holding block (211), and the top holding block (211) is embedded in the top in the holding end (233). 5. The compound drilling tool with double-sided chamfering according to claim 1, characterized in that: the cutter head (22) is a double-sided chamfering cutter head. 6. The drilling double-sided chamfering compound tool according to claim 1, characterized in that: an elastic device (25) is arranged in the handle (1), and one end of the elastic device (25) is fixed on the handle (1) On the inner wall, the other end is held on the back side of cutter head (22). 7. The drilling double-sided chamfering compound tool according to claim 1, characterized in that: the positioning pin (24) includes a threaded joint (241) and a positioning rod (242), and the threaded joint (241) is connected to The end of the snap-in end (242), the connection between the threaded joint (241) and the snap-in end (242) forms a top-holding surface (243), the threaded joint (241) is threadedly connected with the knife handle (1), and the positioning rod (242) is inserted into the handle (1) and passes through the shank (21). 8. The drilling double-sided chamfering compound tool according to claim 7, characterized in that: a positioning slot (212) is opened in the middle of the tool bar (21), and the positioning rod (242) passes through the positioning slot (212) , and the positioning groove (212) is supported by the supporting surface (243). 9. The compound tool for drilling double-sided chamfering according to claim 1, characterized in that: the drilling blade (3) is a magic drill or an indexable drill.