CN2864583Y

CN2864583Y - Drill head apical angle measuring rule

Info

Publication number: CN2864583Y
Application number: CN 200520076769
Authority: CN
Inventors: 范春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-20
Filing date: 2005-10-20
Publication date: 2007-01-31
Anticipated expiration: 2015-10-20

Abstract

The utility model is a drill tip-angle measuring scale which comprises a main scale, a auxiliary scale and a sliding block; a main scale is provided with a sliding groove; the auxiliary scale is on the sliding block; the sliding block can move the auxiliary scale to a random position and locate; the main scale, the auxiliary scale is connected with the sliding block with nuts and bolts. The main scale and the auxiliary scale are provided with a dimension and angle scales; a center line of the sliding block is provided with a position line; a scale value on the main scale means the drill diameter, the scale value on the auxiliary scale means a throat angle value of a drill tip-angle. Move the auxiliary scale upwards or downwards, make the processing tip-angle scale line to align with the center position line on the sliding block, then fix the auxiliary scale; make the grinding drill close to the main scale, until the drill center line aligning with the drill diameter value on the main scale. The structure of the utility model is simple and visualized; the drill with the precision smaller than 0.05 millimeter can be grinded without any experience; the hole-drilling quality can be improved, the time and the drill can be saved.

Description

Drill bit drift angle dip stick

Technical field

The utility model relates to a kind of drill bit drift angle testing tool.

Background technology

In the production reality, the brill type of drill bit hand grinding by rule of thumb comes out, often because of the drill bit sharp angle that grinds, to cut parameters such as cutting edge inclination asymmetric, drill bit swing, single-blade cutting often take place and inclined to one side hole drill, have a strong impact on crudy, especially the more difficult sharpening of the drill bit of diameter more than 30mm, not only time-consuming but also waste drill bit.91210713.8 of the patent No.s are called the utility model of " auger bit brill type detection ruler ", it demonstrates the angle and the cutting edge length variation of the drill bit of surveying according to the lenticular mode detection window, intuitive and convenient, but its component part is many, structure is complicated, and manufacturing cost is higher.

Summary of the invention

The technical problems to be solved in the utility model provide a kind of simple in structure, be convenient to operate, drill bit drift angle dip stick that cost is low.

For solving the problems of the technologies described above, drill bit drift angle dip stick of the present utility model comprises main scale, secondary chi and slide block, chute is set on main scale, secondary chi is positioned on the slide block, described slide block drives secondary chi and can regulate and the location optional position in chute, and described main scale, secondary chi, slide block are fixed together by nuts and bolt.

As a kind of improvement of the present utility model, on described main scale, secondary chi, be respectively equipped with the size groove, the centralized positioning line is set on described slide block, the groove value representation bit diameter on the main scale, the groove value on the secondary chi shows drill bit drift angle basil value.

After adopting such structure,, just can accurately measure drill bit drift angle value easily as long as the drill bit of required sharpening is adjacent on main scale.As need sharpening diameter 10mm, drift angle is 120 ° a auger bit, unclamp nut earlier, the moving sets chi is transferred to the drill bit drift angle angle of required processing, through calculating: (180 °-120 °) ÷ 2=30 °, to screw nut behind the centralized positioning line on 30 ° of grooves aligning slide blocks on the secondary chi, this moment, the angle of main scale and secondary chi was 120 °, that is treat that angle, abrasive drilling crown angle is 120 °, bit sub with required sharpening is adjacent to main scale then, when drill bit drift angle center line has been aimed at 10mm scale value on the horizontal cross bar of main scale, represent that promptly the one side basil of 120 ° of drift angles of this drill bit is ground.In like manner, with regrinded another drift angle sword of drill bit of same procedure.Adopt the drill bit drift angle basil of the utility model sharpening symmetrical, borehole accuracy is less than 0.05mm, not again can because of drift angle not just, drill bit swing during boring and inclined to one side hole drill.Even the length of service is short, lack the operator of sharpening experience, also can comparatively fast and exactly grind drill bit.For the big drill bit of diameter more than 30mm, its effect is especially remarkable.The utility model easy directly perceived, saved drill bit and time, simple in structure, be beneficial to processing, cost is low.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of a kind of drill bit drift angle of the utility model dip stick.

Fig. 2 is the left view of Fig. 1.

Embodiment

By Fig. 1 and Fig. 2 as can be seen, drill bit drift angle dip stick of the present utility model comprises main scale 1, secondary chi 2 and slide block 3, main scale 1 is "  " shape or "T"-shaped, chute 1-1 is set on main scale 1, secondary chi 2 is positioned on the slide block 3, described slide block 3 drives secondary chi 2 and can regulate and the location optional position in chute 1-1, and described main scale 1, secondary chi 2, slide block 3 are fixed together by nut 4,5 and bolt 6.On described main scale 1, secondary chi 2, be respectively equipped with the size groove, on described slide block 3, the centralized positioning line be set, the groove value representation bit diameter on the main scale 1, the groove value on the secondary chi 2 shows drill bit drift angle basil value.The every lattice of groove on the main scale 1 are 1mm, and shown actual bit diameter is 2mm, as will grinding the drill bit of diameter 30mm, only need that the center line of drill bit is aimed at main scale 1 and be marked with 30 groove place and get final product.Now the 10mm drill bit with 120 ° of sharpening drift angles is that example is illustrated: drawing on the secondary chi 2 according to ÷ 2=30 ° of computing method (180 °-120 °) should corresponding angle value be 30 scale place; Move up and down secondary chi 2, make secondary chi 2 be marked with the centralized positioning line that 30 groove is aimed at slide block 3, screw nut 4,5 location then, just very easily the secondary chi 2 and the angle of main scale 1 are transferred to 120 °, again drill bit 7 is adjacent on main scale 1, the sharpening drift angle has been aimed at up to the center line of drill bit 7 till the groove of 10mm on the main scale 1 repeatedly, and this moment, a sword face of drill bit was worn into; And then another sword face of Using such method sharpening, so just guaranteed the symmetry of 120 ° of drift angle basils.

Claims

1, a kind of drill bit drift angle dip stick, comprise main scale, secondary chi and slide block, it is characterized in that: chute (1-1) is set on main scale (1), secondary chi (2) is positioned on the slide block (3), described slide block (3) drives secondary chi (2) and can regulate and the location optional position in chute (1-1), and described main scale (1), secondary chi (2), slide block (3) are fixed together by nut (4), (5) and bolt (6).

2, drill bit drift angle dip stick according to claim 1, it is characterized in that: be respectively equipped with the size groove on (2) at described main scale (1), secondary chi, on described slide block (3), the centralized positioning line is set, groove value representation bit diameter on the main scale (1), the groove value on the secondary chi (2) show drill bit drift angle basil value.