CN201423465Y

CN201423465Y - Key copying machine

Info

Publication number: CN201423465Y
Application number: CN2009201597673U
Authority: CN
Inventors: 刘俊泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-15
Filing date: 2009-06-15
Publication date: 2010-03-17
Anticipated expiration: 2019-06-15

Abstract

The utility model relates to a key copying machine which comprises a base, and a die needle, a milling cuter and a cutter frame shaft which are arranged on the base, a cutter frame sleeved on the cutter frame shaft, and a cutter frame pushing shaft connected with the driving device, wherein a clamp which corresponds to the positions of the die needle and the milling cutter is arranged on the cutter frame, and the shaft core of the cutter frame shaft is located on one side of the vertical cutting surface of the milling cutter and close to the positions of the die needle and the milling cutter.The distance between the shaft core of the cutter frame shaft and the vertical cutting surface of the milling cutter is 2 to 3mm, the depth of a key tooth is mostly between 0 and 5mm, thereby when keys are copied, shapes of a high points and a low point of a key tooth are nearly consistent, the precision is higher, and the key copying machine has simple structure, low cost and easy extension.

Description

Key duplicating machine

Technical field

The utility model relates to a kind of mechanical field, particularly a kind of high-precision key duplicating machine.

Background technology

The knife rest shape of the key duplicating machine of people's use now mostly is square greatly, the square knife rest is provided with and the mould pin, the anchor clamps of milling cutter position correspondence, its tool axis is positioned at apart from the mould pin, on the angle of milling cutter position square farthest, as shown in Figure 1, be positioned at the lower right corner of knife rest, yet, because the height difference of key bit, when knife rest the is vertical and point of contact of milling cutter just in time is the minimum point of key bit, in copy key, need knife rest to swing around tool axis like this, thereby finish the process of preparation key according to the shape of the tooth of original key, yet because milling cutter is circular, and key has certain thickness, thereby the swing of knife rest will inevitably cause that the key flank of tooth forms an inclined-plane, as shown in Figure 2, the Key structure and the original key that cause duplicating have very big difference, and error is big.

The utility model content

The purpose of this utility model is to provide a kind of copy key error little new-type key duplicating machine at the coarse shortcoming of existing key duplicating machine copy key.

The technical solution of the utility model is: a kind of key duplicating machine, comprise base, be arranged at mould pin, milling cutter, the tool axis on the base, the knife rest cardan shaft that is set in the knife rest on the tool axis and joins with drive unit, its intermediate slide is provided with and mould pin, the corresponding anchor clamps in milling cutter position, and the axle center of described tool axis is positioned at the also close mould pin of a side of milling cutter plumb cut, the position of milling cutter.

Preferably: the distance between the axle center of described tool axis and the plumb cut of milling cutter is 2-3mm.

Preferably: the cross sectional shape of described knife rest is set to " L " shape, and described tool axis is positioned at an end of " L " shape knife rest.

The beneficial effects of the utility model are: the utility model is arranged at the also close mould pin of a side of milling cutter plumb cut, the position of milling cutter with the axle center of tool axis, and the distance between the axle center of tool axis and the plumb cut of milling cutter is 2-3mm, and the degree of depth of key bit is mostly between 0-5mm, thereby in the preparation key, the shape of key bit spikes/low-points is almost consistent, precision is higher, and the utility model is simple in structure, and cost is low, is easy to promote.

Description of drawings

Fig. 1 is the structure diagram of existing key duplicating machine

The cutaway view of the key flank of tooth that Fig. 2 duplicates for existing key duplicating machine

Fig. 3 is a structural representation of the present utility model

Fig. 4 is the side view of Fig. 3

Fig. 5 is new and old key duplicating machine contrast cutting principle schematic diagram

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model:

As Fig. 3 to a kind of key duplicating machine shown in Figure 4, comprise base 1, be arranged at mould pin 2, milling cutter 3, the tool axis 4 on the base 1, the knife rest cardan shaft 6 that is set in the knife rest 5 on the tool axis 4 and joins with drive unit 10, its intermediate slide 5 is provided with and mould pin 2, the corresponding anchor clamps 7 in milling cutter 3 positions, and the axle center 8 of described tool axis 4 is positioned at the also close mould pin 2 of a side of milling cutter 3 plumb cuts, the position of milling cutter 3.Distance between the axle center 8 of tool axis 4 and the plumb cut of milling cutter 3 is 2-3mm.The cross sectional shape of knife rest 5 is set to " L " shape, and described tool axis 4 is positioned at an end of " L " shape knife rest 5.

The structure diagram of existing key duplicating machine as shown in Figure 1, its tool axis 4 is arranged at the lower right corner of knife rest 5, in the time of copy key, distance between the key bit spikes/low-points is between 0-5mm, the B point mills out is the low spot of key, distance between the AB is 5mm, thereby, when milling cutter mills the high point of key, need knife rest 5 to rotate, thereby this moment, the position on milling cutter was the C point around tool axis 4, and the shape of the key flank of tooth 9 that mills out at this point as shown in Figure 2, be an arcwall face, be not inconsistent with the original key shape, thereby inaccuracy.

Existing key duplicating machine as shown in Figure 5 and comparison of the present utility model, existing key duplicating machine is that rotate in the axle center with tool axis 42, thereby the position of the spikes/low-points of the key that mills out is respectively at the C and the B point of milling cutter, and the tooth surface shape that this two place mills out is different, the utility model key duplicating machine is that rotate in the axle center with tool axis 41, thereby the position of the spikes/low-points of the key that mills out is nearly all at the B point, thereby the shape of the key flank of tooth is identical with original key, and precision is more accurate.

During work, original key and the key that need duplicate all are clamped on the anchor clamps 7, connect power supply, drive unit 10 drives 6 motions of knife rest cardan shaft, knife rest cardan shaft 6 promotes knife rest 5 and slides along tool axis 4, under the effect of mould pin 2 and original key, knife rest 5 is that rotate in the axle center with tool axis 4, thereby the key that needs duplicate is duplicated successfully under the effect of milling cutter.In addition, the utility model is provided with manual rocking handle 11, can be used for the manual operation key duplicating machine.

Claims

1, a kind of key duplicating machine, comprise base, be arranged at mould pin, milling cutter, the tool axis on the base, the knife rest cardan shaft that is set in the knife rest on the tool axis and joins with drive unit, wherein, knife rest is provided with and mould pin, the corresponding anchor clamps in milling cutter position, it is characterized in that: the axle center of described tool axis is positioned at the also close mould pin of a side of milling cutter plumb cut, the position of milling cutter.

2, key duplicating machine as claimed in claim 1 is characterized in that: the distance between the axle center of described tool axis and the plumb cut of milling cutter is 2-3mm.

3, key duplicating machine as claimed in claim 1 is characterized in that: the cross sectional shape of described knife rest is set to " L " shape, and described tool axis is positioned at an end of " L " shape knife rest.