CN2156970Y

CN2156970Y - Multifunctional microadjustment precision boring bar

Info

Publication number: CN2156970Y
Application number: CN 93233018
Authority: CN
Inventors: 周明发
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-07
Filing date: 1993-01-07
Publication date: 1994-02-23
Anticipated expiration: 2003-01-07

Abstract

The utility model relates to a boring bar; the lower groove of a fixed bar is provided with a mobile cutter sliding block which is screwed in the screw holes of the fixed bar and the sliding block by means of a regulating screw rod, and the pitches of the two screw holes are unequal, so the synchronization discrepancy type is formed; the regulating screw rod can be adjusted to make relative displacement between the sliding block and the fixed bar, and the cutter is arranged in the cutter supporting sleeve of the sliding block. The utility model has the advantages of simple structure, wide purpose, and high precision; as the boring bar is used, the single side can reach 0.005 millimeters, and the bilateral sides can reach 0.01 millimeters; if the boring bar is provided with a key groove milling cutter, key groove milling can be carried out; particularly a large key groove more than 45 millimeters, the boring bar can also be used for grinding technological holes, and the boring bar is suitable for grinding, milling, and boring machine.

Description

Multifunctional microadjustment precision boring bar

The utility model relates to a kind of boring bar, the accurate boring bar of particularly a kind of multi-functional fine setting.

Present bore hole, general all is with a little knife is struck outward of hammer, go to finish machining accuracy by experience and feel fully, both time-consuming, also take a lot of work, be difficult to ensure the quality of products: in addition, the boring bar that uses on boring machine also is nonadjustable, be difficult to improve the precision of boring machine processing,, have the people that boring bar is improved for improving the machining accuracy of boring machine, as Chinese patent disclosed " application number is 88202570.8 boring machine Precision trimming knife bars ", the precision of this knife bar can reach 0.01mm, but its complex structure, processing and manufacturing difficulty: cost height.

It is a kind of simple in structure that the purpose of this utility model is to provide, the accurate boring bar of multi-functional fine setting that be easy to adjust, precision is high.

The utility model is finished with following mode: the accurate boring bar of multi-functional fine setting is by mobile cutter slide block is housed in the groove of fixed bar bottom, stretch out in the hole that has splicing sleeve to pass on the pressing plate on the slide block, pressing plate is contained in fixed bar upper press cover slide block, be screwed into screw on the fixed bar and the screw on the mobile cutter slide block with the adjusting screw mandrel, the pitch of the screw on the fixed bar is greater than or less than the pitch of the screw on the mobile cutter slide block.There is axial dress cutter hole the splicing sleeve end.Fixed bar is by having tapered rod to constitute on the main body, in the bottom of main body groove being arranged.

The accurate boring bar of the multi-functional fine setting of the utility model is a kind of " synchronization discrepancy formula ".This boring bar is in light weight, internal structure is simple, easy to operate, precision is high, of many uses, can be used for boring, mill, boring, its precision can reach monolateral 0.005 millimeter, bilateral 0.01 millimeter, if this boring bar is loaded onto all right keyseat of cotter mill cutter, the big keyway that especially mills more than 45 millimeters more shows its advantage, and it can also bore fabrication hole.

Fig. 1 is the utility model structural representation

Fig. 2 is the front view of fixed bar (1)

Fig. 3 is the C-C cutaway view of Fig. 2

Fig. 4 is the vertical view of Fig. 2

Fig. 5 is the front view of mobile cutter slide block (3)

Fig. 6 is the A-A cutaway view of Fig. 5

Fig. 7 is the B-B cutaway view of Fig. 5

Fig. 8 is a front view of regulating screw mandrel (2)

Fig. 9 is the left view of Fig. 8

Figure 10 pressing plate (4) front view

Figure 11 is the D-D cutaway view of Figure 10

Figure 12 is many cutaway views with cover (5)

Below in conjunction with accompanying drawing the utility model is described in further detail:

As shown in Figure 1, the accurate boring bar of the multi-functional fine setting of the utility model is by fixed bar (1), regulates screw mandrel (2), mobile cutter slide block (3), pressing plate (4) formation.Fixed bar (1) is as Fig. 2, Fig. 3, shown in Figure 4, it is to constitute one by tapered rod (15) and main body (14), in the bottom of main body (14) groove (10) is arranged, the screw (6) that projection is arranged on the main body (14) in groove (10), there is screw end at tapered rod (15), is used for being connected with boring machine with milling machine.Mobile cutter slide block (3) is as Fig. 5, Fig. 6, shown in Figure 7, it is to constitute one by slide block and tool bearing cover, the screw (7) that projection is arranged in the bottom of slide block (3), be convenient to regulate screw mandrel (2) transmission along having circular groove on the slide block (3) of screw axis, the end of tool bearing cover (11) porose (13) are convenient to adorn many with cover (5) and boring cutter bar.Regulate screw mandrel (2) as Fig. 8, shown in Figure 9, it is by a bar main transmission screw mandrel (8) and pays drive lead screw (9) and end adjustment seat formation one, the pitch of main transmission screw mandrel (8) is greater than the pitch of paying drive lead screw (9), adopt M14 * 2 as main transmission screw mandrel (8), pay drive lead screw (9) and adopt M12 * 1.75.The termination of regulating screw mandrel (2) as shown in Figure 9, it has hexagonal (hexagon)nut in, after being convenient to adjust, can not adjust easily and regulate screw mandrel (2).Pressing plate (4) is as Figure 10, shown in Figure 11, and it is by having oval macropore (12) on the plectane, and the diameter of splicing sleeve (11) is convenient to make things convenient for after tool bearing cover (11) passes adjusting slider (3) to move less than hole (12).Many with overlapping (5) as shown in figure 12, it is in the splicing sleeve (11) that is contained on the slide block (3), how can adorn boring bar, cotter mill cutter, drill bit, to be screwed into hold-down screw in the screw (17) on splicing sleeve (11) sidewall then with cover (5) is interior, thus fixing many with cover (5).

The utility model assembling as shown in Figure 1, in the groove (10) on the main body (14) of fixed bar (1) mobile cutter slide block (3) is housed, with pressing plate (4) gland on slide block (3), with screw pressing plate (4) is contained on the main body (14), be used for slide block (3) guiding and regulate the effect of moving slider (3) slip degree of tightness, in the groove (10) on main body (14), screw (6) on the main body (14) is relative on same axis with screw on the slide block (3), be screwed in screw (6) and the screw (7) with regulating screw mandrel (2): since the pitch of two screws (6) and (7) is different and adjusting screw mandrel (2) on the main transmission screw mandrel (8) and the pitch of pair drive lead screw (9) different, as above-mentioned employing M14 * 2 and M12 * 1.75, then turn and regulate screw mandrel (2) transmission, then make between mobile cutter slide block (3) and the fixed bar (1) relative displacement is arranged, form " synchronization discrepancy formula ", after adjustment finishes, can be in the screw (16) of main body (14) dual-side, be screwed into hold-down screw, thereby fixing slide block (3), adjust adjusting screw mandrel (2) and also can adjust tool bearing cover (11) displacement, moving screw mandrel (2) one circles of regulating of revolution, and pitch just in time differs 2-1.75=0.25mm, if the scale of 50 five equilibriums is arranged on the circle of adjusting screw mandrel head employing φ 30, so precision of its Precision trimming, the monolateral 0.25 ÷ 50=0.005mm that just reaches, the bilateral 0.01mm that reaches.

Claims

1, the accurate boring bar of a kind of multi-functional fine setting, it is characterized in that in the groove (10) of fixed bar (1) bottom, mobile cutter slide block (3) being housed, stretch out in the hole (12) that has splicing sleeve (11) to pass on the pressing plate (4) on the slide block (3), pressing plate (4) is contained in fixed bar (1) upper press cover slide block (3), be screwed into screw (6) on the fixed bar (1) and the screw (7) on the mobile cutter slide block (3) with regulating screw mandrel (2), the pitch of the screw (6) on the fixed bar (1) is greater than or less than the pitch of the screw (7) on the mobile cutter slide block (3).

2,, it is characterized in that there is axial dress cutter hole (13) splicing sleeve (11) end according to the described boring bar of claim 1.

3,, it is characterized in that fixed bar (1) is by having tapered rod (15) to constitute on the main body (14), in the bottom of main body (14) groove (10) being arranged according to the described boring bar of claim 1.