CN217223901U

CN217223901U - Four-edge cutter for grinding welding electrode cap

Info

Publication number: CN217223901U
Application number: CN202123098657.0U
Authority: CN
Inventors: 陈躯宁; 许长生; 樊浩; 曹小华
Original assignee: Shanghai Shenghao Automation Technology Co ltd
Current assignee: Shanghai Shenghao Automation Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-08-19
Anticipated expiration: 2031-12-10

Abstract

The utility model belongs to the technical field of electrode cap grinding cutters, and discloses a four-blade cutter for grinding a welding electrode cap, which comprises a cutter core, wherein the cutter core is of an integral up-down symmetrical structure, and the upper half part and the lower half part of the cutter core respectively cut the electrode cap; the utility model discloses a cutting tool, including a cutter core, a plurality of cutting structures, wherein, the cutter core comprises a plurality of cutting structures, each cutting structure all includes cutting blade, cutting back, locating surface and cutting edge back, wherein, a plurality of cutting structures are arranged in circular matrix, make the locating surface form a spacing space of ball-type, spacing space is used for spacing the electrode cap, the utility model discloses relative to single blade promoted the cutter life-span, promoted cutting efficiency; compared with other four-blade or multi-blade cutters, the stability during cutting is improved, and due to the adoption of the proper guide structure (positioning surface) and the small contact area, the vibration during cutting can be reduced, and the heating and cutting surface quality can be reduced.

Description

Four-edge cutter for grinding welding electrode cap

Technical Field

The utility model belongs to the technical field of electrode cap coping cutter, concretely relates to four cutting edge cutters for welding electrode cap coping.

Background

The electrode cap polishing tool is used for repairing an electrode cap of a welding gun for automobile welding. The welding quality is affected by the conditions of deformation, impurity infiltration and the like of the welding end face of an electrode cap of the welding gun in the welding process of the vehicle body. The solution is to trim the electrode cap of the welding gun again, and remove the surface deformation and impurity infiltration part of the electrode cap for continuous use. For the trimming of the electrode cap, the mainstream method at present is to take away the electrode cap material by the rotation of a trimming cutter cutting blade, so as to achieve the trimming effect.

The existing coping cutters mostly adopt a form that a single-edge cutting blade is matched with a cutter seat and a multi-edge cutting blade to carry out cutting and finishing. When the existing single-blade sharpening cutter cuts, the cutter holder drives the blade to rotate, and the positioning surface and the cutting edge contact the electrode cap and start cutting; the single-blade grinding cutter only has a single edge for cutting, so the cutting efficiency is low and the service life is short; in addition, the four-blade grinding cutter increases the number of cutting blades, needs to increase pressure for cutting, increases cutting vibration synchronously due to pressure increase in the process, increases cutting efficiency, and is easy to cause deformation and unevenness of a cutting surface, namely, increases roughness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a four sword cutters for welding electrode cap coping to solve current single blade coping cutter and only have the single-blade cutting, cutting efficiency is low, and the short-lived and four sword coping cutter cutting vibrations increase moreover, easily cause the problem that the cutting face warp and the unevenness.

In order to achieve the above purpose, the utility model provides a following technical scheme: a four-blade cutter for grinding a welding electrode cap comprises a cutter core, wherein the cutter core is of an integrated up-down symmetrical structure, and the upper half part and the lower half part of the cutter core respectively cut the electrode cap;

the knife core comprises a plurality of cutting structure, every cutting structure all includes cutting blade, cutting back, locating surface and cutting edge at the back, and wherein, a plurality of cutting structure is circular matrix arrangement, makes the locating surface form the spacing space of a ball-type, spacing space is used for right the electrode cap carries on spacingly, the cutting blade arrives the distance of the center pin in spacing space is greater than the distance of cutting back to the center pin, the distance of cutting back to the center pin is greater than the distance of locating surface to the center pin, the cutting edge is located the bottom in spacing space at the back.

As a preferred embodiment of the utility model relates to a four sword cutters for welding electrode cap coping, the cutting blade extends to the bottom limit in the spacing space of ball-type to surpass the bottom limit.

As the utility model relates to a four sword cutters for welding electrode cap coping is preferred, the length L that the cutting blade surpassed the bottom limit is greater than 0.2 mm.

As the utility model relates to a four sword cutting tools for welding electrode cap coping is preferred, still includes the knife rest, the knife rest is used for installing the refill, the refill is installed in the inside of knife rest, connecting portion are installed to the top of knife rest, the external diameter of connecting portion is greater than the external diameter of knife rest, the outer wall of knife rest is provided with the boss, seted up on the connecting portion and dismantled the mouth.

As the utility model relates to a four sword cutters for welding electrode cap coping is preferred, connecting portion and sword core interference fit.

As the utility model relates to a four sword cutting tools for welding electrode cap coping is preferred, the sword core includes four cutting structures, and every cutting structure all includes cutting structure first half and cutting structure the latter half, cutting structure first half includes cutting edge at the back a, locating surface an, cuts at the back a, cutting edge an, cutting structure the latter half includes cutting edge at the back b, locating surface b, cuts at the back b and cutting edge b.

Compared with the prior art, the utility model, following beneficial effect has: compared with a single blade, the utility model prolongs the service life of the cutter and improves the cutting efficiency; compared with other four-blade or multi-blade cutters, the stability during cutting is improved, and due to the adoption of a proper guide structure (positioning surface) and a smaller contact area, the vibration during cutting can be reduced, and the heating and cutting surface quality can be reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the knife core of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the upper half of the cutting structure of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a lower half of the cutting structure of FIG. 2 according to the present invention;

fig. 5 is a top view of the present invention;

fig. 6 is a schematic structural view of the plane a-a in fig. 5 according to the present invention;

fig. 7 is a front view of the present invention;

fig. 8 is a schematic structural view of the plane B-B in fig. 7 according to the present invention;

fig. 9 is a schematic structural view of the knife core shown in fig. 1 according to the present invention;

fig. 10 is a partial enlarged view of the present invention at C in fig. 9;

in the figure: 1. a tool holder; 10. a disassembly port; 11. a boss; 12. a connecting portion; 2. a cutter core; 20. cutting the upper half of the structure; 21. cutting the lower half part of the structure; 200. a cutting edge relief a; 201. a positioning surface a; 202. cutting the back face a; 203. cutting edge a; 210. a cutting edge back face b; 211. a positioning surface b; 212. cutting the back surface b; 213. cutting edge b; 3. an electrode cap a; 4. and an electrode cap b.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a four-edge cutter for grinding a welding electrode cap comprises a cutter core 2, wherein the cutter core 2 is of an integrated up-down symmetrical structure, and the upper half part and the lower half part of the cutter core 2 respectively cut the electrode cap;

the cutter core 2 comprises a plurality of cutting structures, each cutting structure comprises a cutting edge, a cutting back surface, a positioning surface and a cutting edge back surface, wherein the plurality of cutting structures are arranged in a circular matrix, the positioning surface forms a spherical limiting space, the limiting space is used for limiting the electrode cap, the distance from the cutting edge to the central shaft of the limiting space is greater than the distance from the cutting back surface to the central shaft, the distance from the cutting back surface to the central shaft is greater than the distance from the positioning surface to the central shaft, and the cutting edge is positioned at the bottom of the limiting space at the back surface.

In this embodiment, the core 2 is connected to the connecting portion 12 by interference fit. The cutter core 2 is positioned by the connecting part 12, force is applied to the boss 11 to enable the cutter core 2 to rotate, the cutter rest 1 drives the cutter core 2 to rotate together, and the cut electrode caps are respectively positioned at the upper end and the lower end of the cutter core 2; when the cutter core 2 rotates, the upper electrode cap and the lower electrode cap are pressed, the upper electrode cap and the lower electrode cap are continuously contacted with the cutting edge a and the cutting edge b until the cutting is finished, and the upper electrode cap and the lower electrode cap are separated from the cutter core 2 to finish the trimming cutting.

The cutting structure upper half 20 is composed of 4 cutting edges a, 4 cutting back faces a, 4 locating faces a and 4 cutting edge back faces a.

The lower half portion 21 of the cutting structure is composed of 4 cutting edges b, 4 cutting back faces b, 4 positioning faces b and 4 cutting edge back faces b.

In the embodiment, in order to solve the problems of the single-blade and four-blade sharpening cutter, the advantages of the single-blade and four-blade sharpening cutter structure are neutralized, so that the single-blade sharpening cutter surface is reserved, and the four cutting blades are also reserved. The grinding and cutting efficiency of the electrode cap is improved, and the quality of a cutting surface is ensured.

Specifically, the cutting edge extends to the bottom extreme point of the spherical limiting space and exceeds the bottom extreme point.

Specifically, the length L of the cutting edge beyond the extreme point of the bottom is greater than 0.2 mm. In this embodiment, as shown in fig. 9 and 10, the cutting edges a and b both cross the center of the circle, and the distance L is greater than 0.2 mm.

Specifically, the tool rest comprises a tool rest 1, the tool rest 1 is used for installing a tool core 2, the tool core 2 is installed inside the tool rest 1, a connecting portion 12 is installed above the tool rest 1, the outer diameter of the connecting portion 12 is larger than that of the tool rest 1, a boss 11 is arranged on the outer wall of the tool rest 1, and a disassembling opening 10 is formed in the connecting portion 12.

Specifically, the connecting portion 12 is interference-fitted with the core 2.

Specifically, the insert 2 includes four cutting structures, each of which includes a cutting structure upper half portion 20 and a cutting structure lower half portion 21, the cutting structure upper half portion 20 includes a cutting edge rear face a200, a positioning face a201, a cutting rear face a202, and a cutting edge a203, and the cutting structure lower half portion 21 includes a cutting edge rear face b210, a positioning face b211, a cutting rear face b212, and a cutting edge b 213.

In the present embodiment, as shown in fig. 5 and 6, the electrode cap a is attached to the upper half portion of the cutter core 2, and the electrode cap b is attached to the lower half portion of the cutter core 2, so that the cutter core 2 simultaneously cuts the electrode cap a and the electrode cap b when the tool holder 1 is rotated.

4 concentric sphere locating surfaces in the same direction play a role in locating when reducing the contact surface with the electrode cap wall, avoid cutting process large tracts of land contact electrode cap to produce more heat, influence cutter life-span and cutting face quality.

As shown in fig. 7 and 8, a certain distance is reserved behind the cutting to ensure the sharpness of the cutting edge; the size of the positioning surface is smaller than that of the cutting edge, so that the electrode cap can be positioned and the cutting tool can be reserved for the cutting edge during cutting.

4 cutting blades cut the electrode cap synchronously, and 4 concentric sphere locating surfaces position the electrode cap simultaneously, and when increase cutting pressure, the cutter still is in the cutting steady state, and to the increase of cutting pressure, the fluctuation of cutting vibration rises unobviously.

Compared with a single blade, the service life of the cutter is prolonged, and the cutting efficiency is improved; compared with other four-blade or multi-blade cutters, the stability during cutting is improved, the proper guide structure positioning surface and the smaller contact area can reduce vibration during cutting and reduce heating and cutting surface quality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a four sword cutters for welding electrode cap coping which characterized in that: the electrode cutting tool comprises a tool core (2), wherein the tool core (2) is of an integrated vertically symmetrical structure, and the upper half part and the lower half part of the tool core (2) are used for cutting electrode caps respectively;

the utility model discloses a cutting tool, including cutting edge, locating surface and cutting edge, sword core (2) comprises a plurality of cutting structure, every cutting structure all includes cutting edge, cutting back, locating surface and cutting edge at the back, and wherein, a plurality of cutting structure is circular matrix arrangement, makes the locating surface form the spacing space of a ball-type, spacing space is used for right the electrode cap carries out spacingly, cutting edge arrives the distance of the center pin in spacing space is greater than the distance of cutting back to the center pin, the distance of cutting back to the center pin is greater than the distance of locating surface to the center pin, the cutting edge is located the bottom in spacing space at the back.

2. The four-blade tool for sharpening welding electrode caps of claim 1, wherein: the cutting edge extends to the bottom extreme point of the spherical limiting space and exceeds the bottom extreme point.

3. The four-blade tool for sharpening welding electrode caps of claim 2, wherein: the length L of the cutting edge exceeding the bottom pole is more than 0.2 mm.

4. The four-blade tool for sharpening welding electrode caps of claim 1, wherein: still include knife rest (1), knife rest (1) is used for installing core (2), install in the inside of knife rest (1) core (2), connecting portion (12) are installed to the top of knife rest (1), the external diameter of connecting portion (12) is greater than the external diameter of knife rest (1), the outer wall of knife rest (1) is provided with boss (11), seted up on connecting portion (12) and dismantled mouth (10).

5. The four-blade tool for sharpening welding electrode caps of claim 4, wherein: the connecting part (12) is in interference fit with the cutter core (2).

6. The four-blade cutter for coping of welding electrode caps according to any of claims 1 to 5, wherein: the cutter core (2) comprises four cutting structures, each cutting structure comprises a cutting structure upper half portion (20) and a cutting structure lower half portion (21), the cutting structure upper half portion (20) comprises a cutting edge rear face a (200), a positioning face a (201), a cutting rear face a (202) and a cutting edge a (203), and the cutting structure lower half portion (21) comprises a cutting edge rear face b (210), a positioning face b (211), a cutting rear face b (212) and a cutting edge b (213).