CN219130898U

CN219130898U - Combined forming cutter head for machining clamp mouth

Info

Publication number: CN219130898U
Application number: CN202223594773.6U
Authority: CN
Inventors: 向东帝; 陈勇; 陈晨
Original assignee: Changzhou Hongren Tools Co ltd
Current assignee: Changzhou Hongren Tools Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-06
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a combined forming cutter head for machining a clamp mouth, which comprises a first cutter head and a second cutter head, wherein the first cutter head and the second cutter head are coaxially arranged, the end faces of the core parts of the first cutter head and the second cutter head are closely arranged, a step surface is arranged from the middle part to the outer ring of the second cutter head, a milling gap is formed between the step surface and the inner end face of the first cutter head, a plurality of first cutter teeth are arranged on the outer ring of the first cutter head, the outer ring of the second cutter head is provided with a plurality of second cutter teeth which are mutually staggered along the circumferential direction, the first cutter teeth are provided with first blades, the second cutter teeth are provided with second blades, the edge parts of the first blades are protruded out of the inner end face of the first cutter head, the edge parts of the second blades are protruded out of the step surface, the first blades and the second blades are staggered in the milling gap, and milling paths of the first blades and the second blades have overlapping parts; the combined cutter head can cut and shape the clamp mouth hook at one time, so that vibration generated by repeated cutting is avoided, and the processing efficiency is improved.

Description

Combined forming cutter head for machining clamp mouth

Technical Field

The utility model belongs to the technical field of machining tools, and particularly relates to a combined forming cutter head for machining a clamp mouth.

Background

The pliers are hand tools for clamping and fixing a machined workpiece or twisting and bending, are various in variety and wide in application range, and are an indispensable pinching tool in the assembly, repair, installation and other works in various industries; the shape of the clamp mouth determines the main functions and the use property of the pliers, the common clamp mouth comprises a sharp mouth, a flat mouth, a bent mouth and the like, and when in processing, the clamp mouth is generally made of carbon structural steel, is firstly forged and pressed into a clamp blank shape, is then subjected to metal cutting processing such as milling, polishing and the like, and finally is subjected to heat treatment. As shown in fig. 1, the hook-shaped clamp mouth is bent inwards, and during machining, the inner side and the outer side of the clamp mouth are machined by cutting, and the existing machining mode adopts two milling cutters to sequentially machine the inner side and the outer side, but because the thickness of the bent part of the clamp mouth is thinner, the original mechanical property is affected by repeated milling, machining errors are easily generated due to blank vibration, so that the machining precision is poor and the efficiency is low.

Disclosure of Invention

Aiming at the problems and the technical requirements, the utility model provides a combined forming cutter head, which can be used for arranging two groups of blades according to the shape of a clamp nozzle, and milling and forming the bent clamp nozzle at one time, so that the milling precision and the processing efficiency are improved.

The technical scheme of the utility model is as follows:

further, the edge part of the first cutter tooth opposite to the step surface is in a concave arc shape, the first cutter blade is arranged along the concave arc shape, and the edge part of the first cutter blade protrudes out of the peripheral surface of the first cutter tooth, the concave arc-shaped surface and the inner end surface of the first cutter head.

Further, the first blade edge part comprises a peripheral surface straight edge, an inward-concave arc edge and an end surface straight edge which are sequentially connected, the angle between the peripheral surface straight edge and the end surface straight edge is 90 degrees, the radius of the inward-concave arc edge is 7.5mm, the peripheral surface straight edge and the inward-concave arc edge are connected through a circular chamfer, and the radius of the circular chamfer is 1mm.

Further, the first blade is in a central rotation symmetry shape, the first blade is provided with two blade parts, and the first blade and the first cutter teeth are connected through screws.

Further, an included angle between the peripheral surface of the second cutter tooth and the step surface is larger than 90 degrees, and the second cutter blade is installed at the included angle in a covering mode.

Further, the edge portion of the second blade includes an outer circumferential circular arc edge protruding from the circumferential surface of the second cutter tooth and a step surface straight edge protruding from the step surface.

Further, the peripheral arc edge and the step surface straight edge are connected through a round chamfer, the radius of the round chamfer is 1.5mm, and the radius of the peripheral arc edge is 127mm.

Furthermore, the middle parts of the first cutterhead and the second cutterhead are respectively provided with a lightening hole, the core parts of the first cutterhead and the second cutterhead are respectively provided with a mounting hole, and the inner sides of the mounting holes are respectively provided with a key slot.

The utility model has the beneficial effects that: the first cutter disc and the second cutter disc are combined together, the hook part of the clamp mouth is cut simultaneously, the first blade mills the outer side of the hook, the second blade mills the inner side of the hook, a milling gap is formed between the two cutter discs by arranging the step surface on the second cutter disc, and the blade parts of the first blade and the second blade are overlapped in the milling gap, so that the cut of the sharp angle of the milled hook is orderly, the sharp angle is formed, and the machining precision is improved; the two cutterheads are machined together, so that one-time cutting and forming can be realized, vibration generated by repeated cutting is avoided, and the machining efficiency and the workpiece consistency are improved.

Drawings

FIG. 1 is a view of the construction of a jaw portion of the present utility model;

FIG. 2 is an end view of a combination forming cutter head of the present utility model;

FIG. 3 is an axial cross-sectional view of the present utility model;

FIG. 4 is an enlarged block diagram of the first and second blades of FIG. 3;

FIG. 5 is a schematic view of the machining cooperation of the combined forming cutter head and the clamp mouth hook of the utility model;

marked in the figure as: the first cutterhead 1, the first cutter tooth 11, the first blade 12, the peripheral straight edge 13, the concave circular arc edge 14, the end face straight edge 15, the second cutterhead 2, the second cutter tooth 21, the second blade 22, the peripheral circular arc edge 23, the step face straight edge 24, the step face 3, the milling gap 4, the lightening hole 5, the mounting hole 6, the key groove 61, the clamp mouth 7 and the clamp mouth hook 71.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

As shown in fig. 1, a blank to be processed is provided with a clamp mouth 7, the end part of the clamp mouth is provided with a clamp mouth hook 71, and the combined forming cutter disc performs milling processing on the clamp mouth hook 71. The combined forming cutter for machining the pliers nozzle is shown in fig. 2-4, and comprises a first cutter 1 and a second cutter 2, wherein the first cutter 1 and the second cutter 2 are coaxially arranged, lightening holes 5 are formed in the middle of the first cutter 1 and the middle of the second cutter 2, mounting holes 6 are formed in the core parts of the first cutter 1 and the second cutter 2, and key grooves 61 are formed in the inner sides of the mounting holes 6.

The end faces of the core parts of the first cutterhead 1 and the second cutterhead 2 are closely installed, a step surface 3 is arranged from the middle part of the second cutterhead 2 to the outer ring, and a milling gap 4 is formed between the step surface 3 and the inner end face of the first cutterhead 1. The first cutter head 1 outer lane is equipped with a plurality of first cutter teeth 11, and the second cutter head 2 outer lane is equipped with the second sword 21 tooth of same quantity, and first cutter teeth 11 and second sword 21 stagger each other along circumference, install first blade 12 on the first cutter teeth 11, install second blade 22 on the second sword tooth 21.

The edge part of the first cutter tooth 11 opposite to the step surface 3 is in a concave arc shape, the first cutter blade 12 is arranged along the concave arc shape, and the edge part of the first cutter blade 12 protrudes out of the peripheral surface of the first cutter tooth, the concave arc surface and the inner end surface of the first cutter head.

The edge part of the first blade 11 protrudes out of the inner end surface of the first cutterhead 1, specifically, the first blade 11 is in a central rotation symmetrical shape, the first blade 12 is provided with two edge parts, and the first blade 12 and the first cutter tooth 11 are connected through a screw. The first blade 12 edge part comprises a peripheral surface straight edge 13, an inward concave circular arc edge 14 and an end surface straight edge 15 which are sequentially connected, wherein an angle between the peripheral surface straight edge 13 and the end surface straight edge 15 is 90 degrees, the radius of the inward concave circular arc edge 14 is 7.5mm, the peripheral surface straight edge 13 and the inward concave circular arc edge 14 are connected through a circular chamfer, and the radius of the circular chamfer is 1mm.

The edge of the second blade 22 protrudes from the step surface 3, and the first blade 12 and the second blade 22 are staggered in the milling gap 4, and the milling paths of the first blade and the second blade have overlapping parts. The included angle between the peripheral surface of the second cutter tooth 21 and the step surface 3 is larger than 90 degrees, and the second cutter blade 22 is arranged at the included angle in a covering way; the edge portion of the second insert 22 includes an outer circumferential circular arc edge 23 protruding from the circumferential surface of the second cutter tooth 21 and a step surface straight edge 24 protruding from the step surface 3. The peripheral arc blade 23 and the step surface straight blade 24 are connected by a circular chamfer with a radius of 1.5mm, and the radius of the peripheral arc blade 23 is 127mm.

As shown in fig. 5, the combined forming tool and the clamp hook are shown in a schematic fit manner, the first blade 12 is used for milling the outer side surface of the hook, the second blade 21 is used for milling the inner side surface of the hook, the end face straight edge 15 and the step face straight edge 24 are overlapped in the milling gap 4, and the concave circular arc edge 14 and the step face straight edge 24 are used for simultaneously cutting the tip portion of the clamp hook 71.

While the utility model has been described with respect to several preferred embodiments, the scope of the utility model is not limited thereto, and any changes and substitutions that would be apparent to one skilled in the art within the scope of the utility model are intended to be included within the scope of the utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A combination shaping blade disc for pincers mouth processing, its characterized in that: the milling cutter comprises a first cutter disc and a second cutter disc, wherein the first cutter disc and the second cutter disc are coaxially arranged, the end faces of the core parts of the first cutter disc and the second cutter disc are tightly installed, a step surface is arranged from the middle part of the second cutter disc to the outer ring, a milling gap is formed between the step surface and the inner end face of the first cutter disc, a plurality of first cutter teeth are arranged on the outer ring of the first cutter disc, the same number of second cutter teeth are arranged on the outer ring of the second cutter disc, the first cutter teeth and the second cutter teeth are staggered with each other along the circumferential direction, first cutter blades are installed on the first cutter teeth, second cutter blades are installed on the second cutter teeth, the edge parts of the first cutter blades are protruded from the inner end face of the first cutter disc, the edge parts of the second cutter blades are protruded from the step surface, the first cutter blades and the second cutter blades are staggered in the milling gap, and the milling paths of the first cutter blades and the second cutter blades have overlapping parts.

2. The combination forming cutterhead for machining of pliers according to claim 1, wherein: the edge parts of the first cutter teeth, which are opposite to the step surfaces, are concave arcs, the first cutter blades are arranged along the concave arcs, and the edge parts of the first cutter blades protrude out of the peripheral surfaces of the first cutter teeth, the concave arc surfaces and the inner end surfaces of the first cutter head.

3. The combination forming cutterhead for machining of pliers according to claim 2, wherein: the first blade edge part comprises a peripheral surface straight edge, an inward-concave circular arc edge and an end surface straight edge which are sequentially connected, wherein an angle between the peripheral surface straight edge and the end surface straight edge is 90 degrees, the radius of the inward-concave circular arc edge is 7.5mm, the peripheral surface straight edge and the inward-concave circular arc edge are connected through a circular chamfer, and the radius of the circular chamfer is 1mm.

4. A combination forming cutterhead for pliers mouth machining according to claim 3, wherein: the first blade is in a central rotation symmetrical shape, the first blade is provided with two blade parts, and the first blade and the first cutter teeth are connected through screws.

5. The combination forming cutterhead for machining of pliers according to claim 4, wherein: the included angle between the peripheral surface of the second cutter tooth and the step surface is larger than 90 degrees, and the second cutter blade is arranged at the included angle in a covering mode.

6. The combination forming cutterhead for machining of pliers according to claim 5, wherein: the edge part of the second blade comprises an outer circular arc edge protruding out of the peripheral surface of the second cutter tooth and a step surface straight edge protruding out of the step surface.

7. The combination forming cutterhead for jaw machining according to claim 6, wherein: the peripheral arc blade and the step surface straight blade are connected through a round chamfer, the radius of the round chamfer is 1.5mm, and the radius of the peripheral arc blade is 127mm.

8. The combination forming cutterhead for machining of pliers according to claim 1, wherein: the middle parts of the first cutterhead and the second cutterhead are respectively provided with a lightening hole, the core parts of the first cutterhead and the second cutterhead are respectively provided with a mounting hole, and the inner sides of the mounting holes are respectively provided with a key slot.