CN208696677U - Negative angle modifies block - Google Patents

Abstract

The utility model belongs to mould for cold milling dressing technique field, and in particular to a kind of negative angle finishing block, including main block, the main vertically arranged finishing cutting edge in block one end, the bottom surface of main block are burnishing surface, and the angle for modifying cutting edge and bottom surface is acute angle.Negative angle provided by the utility model modifies block, will modify the angle introversion of cutting edge and bottom surface, so that finishing cutting edge and vertical plane form a negative angle, the quick reparation for mold notch.

Description

Negative angle modifies block

Technical field

The utility model belongs to mould for cold milling dressing technique field, and in particular to a kind of negative angle finishing block.

Background technique

Previous steel plate mold notch is needed to program processing by five-shaft numerical control and be protected if you need to be made into 89 degree or other angles acute angle Card, processing technology is complicated, and the process-cycle is long, and is difficult to ensure processing quality；If being unable to complete by pincers worker manual trim 89 °, often rely on verticality reference block finishing it is in 90 °, be unable to satisfy requirement.

Utility model content

The purpose of the utility model is to provide a kind of negative angles to modify block, will modify the angle introversion of cutting edge and bottom surface, makes Cutting edge must be modified and vertical plane forms a negative angle, the quick reparation for mold notch.

Purpose of the utility model is realized as follows: a kind of negative angle modifies block, including main block, main block one end is perpendicular Cutting edge is modified to setting, the bottom surface of main block is burnishing surface, and the angle for modifying cutting edge and bottom surface is acute angle.

Further, the other end of the main block is that arc is outer for face.

Further, the side vertical array of the main block has finger hole.

Further, the two sides of the finishing cutting edge are inclined surface, and inclined surface is symmetrical arranged.

Further, the finishing cutting edge extends to bottom surface by main block top surface.

Further, the finishing cutting edge and the angle of bottom surface are 89 °.

Further, the finger hole is through hole.

Compared with the prior art, the utility model has prominent and beneficial technical effects that:

This programme can manually quickly repair mold notch using the finishing block that finishing cutting edge is negative angle, contract The short processing duration, the problem of avoiding in the past using numerically-controlled machine tool bring complex process and the high requirements on the equipment.

Detailed description of the invention

Fig. 1 is the schematic perspective view that block is modified in the utility model embodiment；

Fig. 2 is the front view of Fig. 1；

Fig. 3 is the working state schematic representation that block is modified in the utility model embodiment.

Appended drawing reference: 1, main block；2, cutting edge is modified；3, finger hole；4, the outer arch face of arc；5, mold notch；6, it tilts Face.

Specific embodiment

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.

A kind of negative angle modifies block, as shown in Figure 1, include main block 1, main 1 one end of block is symmetrical arranged inclined surface 6, and two A inclined surface 6 closes up to form a V-type tip, and the tip is vertically extending and forms a finishing cutting edge 2；It can from Fig. 2 Out, the upper sideline of inclined surface 6 is shorter than lower sideline so that finishing cutting edge 2 to main 1 bottom surface direction introversion of block, and with main block 1 Bottom surface forms an acute angle.

The other end of main block 1 is the outer arch face 4 of arc, and the side of main block 1 is provided with finger hole 3, arc 4 He of outer arch face Finger hole 3 forms a holding structure；In use, the centre of the palm is attached to the outer arch face 4 of arc, finger is through in finger hole 3 operator, Block is modified to easily hold.In order to meet ergonomics, finger pair except the thumb of finger hole 3 and hand herein It answers, preferably vertical array four, and all for through structure；The exit of finger hole 3 carries out chamfered respectively, avoids hurting, Chamfered, the position especially having a common boundary with arch face 4 outside arc are also carried out in the top surface of main block 1 simultaneously.

Convenience when modifying block in order to facilitate processing and using, modifies cutting edge 2 by main 1 top surface of block and extends to bottom surface. Equally, the outer arch face 4 of arc is also to extend to bottom surface by main 1 top surface of block

Wherein, finishing cutting edge 2 and the angle of bottom surface need the angle set to be adjusted according to mold notch 5, due to big The part mould edge of a knife 5 is set as 89 °, to generate 1 ° of evacuation gap, for avoiding taking out of since mold expands with heat and contract with cold generation Soft bits；Therefore preferably 89 ° of angle of cutting edge 2 and main 1 bottom surface of block are modified in the present embodiment.

As shown in figure 3, mold notch 5 to be trimmed is upside down on grinding table when using finishing block in the present embodiment, Main 1 bottom surface of block is fitted on grinding table simultaneously, and finishing cutting edge 2 is resisted against 5 surface of mold notch；Operator's grip Firmly main block 1, and move back and forth main block 1 along 5 surface of mold notch, until repairing on 5 surface of mold notch and main block 1 Whole 2 gapless of cutting edge generates, and indicates that the angle of mold notch 5 has been trimmed to set angle at this time.

In addition, modifying the processing of block in the present embodiment can prepare with the following method: 1, finding out one piece of suitable benchmark Material (such as SKD11 or HMD5), shape can be cut out by wire cutting, and guarantee that baseplane is uniformly flat；2, integral quenching；3, It is finished on numerically-controlled machine tool after quenching.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change It also should be regarded as the protection scope of the utility model into replacement.

Claims (7)

1. a kind of negative angle modifies block, it is characterised in that: including main block (1), the vertically arranged finishing cutting edge in main block (1) one end (2), the bottom surface of main block (1) is burnishing surface, and finishing cutting edge (2) and the angle of bottom surface are acute angle.

2. negative angle according to claim 1 modifies block, it is characterised in that: the other end of the main block (1) is arc Outer arch face (4).

3. negative angle according to claim 1 or 2 modifies block, it is characterised in that: vertically arrange the side of the main block (1) Show finger hole (3).

4. negative angle according to claim 1 modifies block, it is characterised in that: the two sides of finishing cutting edge (2) are inclination Face (6), inclined surface (6) are symmetrical arranged.

5. negative angle according to claim 1 modifies block, it is characterised in that: the finishing cutting edge (2) is pushed up by main block (1) Face extends to bottom surface.

6. negative angle according to claim 1 modifies block, it is characterised in that: the angle of finishing cutting edge (2) and bottom surface It is 89 °.

7. negative angle according to claim 3 modifies block, it is characterised in that: the finger hole (3) is through hole.