CN214212483U

CN214212483U - Tool bit for deburring edge of flat end part of special spring

Info

Publication number: CN214212483U
Application number: CN202022805310.4U
Authority: CN
Inventors: 马英成
Original assignee: Guizhou Yinghang Spring Co ltd
Current assignee: Guizhou Yinghang Spring Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-17
Anticipated expiration: 2030-11-27

Abstract

A planar end edge deburring tool bit of a specially-made spring is used for removing burrs at the joint of a specially-made spring end face and an inner surface, and belongs to the technical field of tool manufacturing of deburring at the edge of the specially-made spring end face, the tool bit comprises a tool body with a square cross section, the lower end of the tool body is a cone tool tip part with a square cross section, the upper end of the tool body is a tool handle, cutting edges are arranged at four edges on the side wall of the tool tip part, the four cutting edges are arrayed on the side wall of the tool tip part at equal intervals by taking a point on a central shaft of the tool handle as a circle center, and chip grooves are arranged at the root parts of the cutting edges on the side wall of the tool tip part. Resulting in the problems of low speed and more defective products.

Description

Tool bit for deburring edge of flat end part of special spring

Technical Field

A tool bit for deburring the edge of the planar end part of a special spring is used for removing burrs at the joint of the end surface of the special spring and the inner surface, and belongs to the technical field of tool manufacturing for deburring the edge of the end surface of the special spring.

Background

In some special mechanical devices, the end face of the spring needs to be cut into a plane perpendicular to the axis of the spring (as shown in fig. 1) to ensure that the spring can be vertically placed at a required installation position, and after the end face of the spring is cut into a plane, burrs are generated at the joint of the end face of the spring and the inner surface, and the burrs affect the installation of the spring in precise mechanical matching; in the prior art, the burrs are removed mainly by manually using a scraper to scrape the burrs slowly, and the manual scraping is slow, and due to poor proficiency of general workers, the inner surface, the end surface or the peripheral surface of the spring is often damaged, so that a lot of defective products are generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's shortcoming, the cutter body cooperation cross section that adopts the square is the cone sword point portion of square, simultaneously, all sets up the mode of cutting edge in four arriss departments on the lateral wall of sword point portion, has designed the plane tip border deburring tool bit of a purpose-made spring, has solved and has adopted artifical scraper with scraping at present deburring, leads to speed slow, the many problem of substandard product.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a plane tip border deburring tool bit of purpose-built spring, includes that the cross section is the sword body of square, its characterized in that: the lower extreme of sword body is the cone point of a knife portion that the cross section is square, and the upper end is the handle of a knife, all set up the cutting edge in four arriss departments on the lateral wall of point of a knife portion, four the cutting edge is with the point on the center pin of handle of a knife is array on the lateral wall of point of a knife portion of centre of a circle equidistance, on the lateral wall of point of a knife portion the root of cutting edge sets up the chip groove.

The utility model discloses in, when using, pass through the handle of a knife with the sword body and install in the axis of rotation of rotating the motor (perhaps in the pivot of drilling machine), then the workman holds the spring with the hand, with the tip of the tip cover of spring slowly contacting the point of cutter point portion, the cutting edge of point of cutter point portion just contacts the burr that the handing-over department of spring terminal surface and internal surface produced, scrapes these burrs, and the burr of having scraped just flows away from the flow chip groove, the utility model discloses a square sword body cooperation cross section is the cone point portion of square, and simultaneously, all set up the mode of cutting edge in four arriss department on the lateral wall of point portion, designed the plane tip border deburring tool bit of a purpose-made spring, solved and adopted artifical scraper to scrape at present deburring, lead to speed slow, the many problems of substandard product.

As a preferable mode, the tool shank is a cylinder which is coaxial with and integrally arranged with the tool body.

In a preferred embodiment, the material of the cutting tip portion is high-speed steel.

In a preferable mode, one end of the chip groove faces the root of the cutter point part, the other end of the chip groove faces the top end of the cutter point part, and the width of the chip groove is larger than 3 mm.

In a preferable mode, the included angle between the waist and the bottom of the trapezoid formed by the projection of the knife tip part on the vertical surface is 60-65 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a sword body cooperation cross section of square is the cone sword point portion of square, simultaneously, all sets up the mode of cutting edge in four arriss departments on the lateral wall of sword point portion, has designed the planar tip border deburring tool bit of a purpose-made spring, has solved and has adopted artifical scraper to scrape at present deburring, leads to speed slow, the many problems of substandard product.

(2) The utility model discloses a handle of a knife establish into with the cylinder of the coaxial and integrative setting of sword body for handle of a knife and the concentric rotation of sword body, make the workman directly aim at the center pin of spring with the most advanced of sword point portion in actual operation, avoid scraping the in-process damage spring of burr.

(3) The utility model discloses a will make the high-speed steel is selected to the material of sword point portion, improves the life of sword point portion.

(4) The utility model discloses a flow the root of the one end of chip groove towards the point of cutter point portion, the other end is towards the top of point of cutter point portion, the width of flowing the chip groove is greater than 3mm for the length of flowing the chip groove is unanimous with the length of cutting edge, thereby makes no matter the terminal surface of spring contact to the any position of the cutting edge on the point of cutter point portion, all can make the burr flow from flowing the chip groove, and the width is greater than 3mm and is favorable to the outflow of burr, avoids the burr card to flow the chip groove the inside.

Drawings

FIG. 1 is a schematic view of the end face of a spring cut in a plane perpendicular to the axis of the spring;

fig. 2 is a schematic structural diagram of the present invention.

Wherein, 1, the knife body; 2. a knife handle; 3. a blade; 4. a chip flowing groove; 5. a knife tip part.

Detailed Description

Example 1:

referring to fig. 1-2, a planar end edge deburring tool bit for a specially-made spring comprises a tool body 1 with a square cross section, wherein the lower end of the tool body 1 is a conical tool tip portion 5 with a square cross section, the upper end of the tool body is a tool handle 2, four cutting edges 3 are arranged on the side wall of the tool tip portion 5 at four edges, the four cutting edges 3 are arrayed on the side wall of the tool tip portion 5 at equal intervals by taking a point on the central shaft of the tool handle 2 as a circle center, and chip flowing grooves 4 are formed in the root of the cutting edges 3 on the side wall of the tool tip portion 5.

In this embodiment, when using, install sword body 1 in the axis of rotation of rotating the motor (or in the pivot of drilling machine) through handle of a knife 2, then the workman holds the spring with the hand, slowly contacts the tip of the tip portion 5 of the tip portion of spring, and the cutting edge 3 of tip portion 5 just contacts the burr that spring end face and the handing-over department of internal surface produced, scrapes these burrs, and the burr of having scraped just flows away from the flow chip groove 4, the utility model discloses a 1 cooperation cross sections of sword body of square are the cone point portion 5 of square, and simultaneously, all set up the mode of cutting edge 3 in four arriss department on the lateral wall of tip portion 5, designed the plane tip border deburring tool bit of a purpose-made spring, solved and adopted artifical scraper with the deburring at present to scrape, lead to speed slow, the many problems of substandard product.

Example 2:

Preferably, the knife handle 2 is a cylinder which is coaxial and integrally arranged with the knife body 1, so that the knife handle 2 and the knife body 1 concentrically rotate, a worker directly aligns the tip of the knife tip part 5 with the central shaft of the spring in actual operation, and the spring is prevented from being damaged in the process of scraping burrs.

Preferably, the material for manufacturing the nose portion 5 is high-speed steel, so that the service life of the nose portion 5 is prolonged.

Preferably, one end of the chip flute 4 faces the root of the blade part 5, the other end faces the top end of the blade part 5, the width of the chip flute 4 is larger than 3mm, so that the length of the chip flute 4 is consistent with the length of the blade 3, therefore, the burr can flow out of the chip flute 4 no matter the end surface of the spring contacts any position of the blade 3 on the blade part 5, and the burr is favorably flowed out by the width of more than 3mm, and the burr is prevented from being clamped in the chip flute 4.

Preferably, the included angle between the waist and the bottom of the trapezoid formed by the projection of the knife tip part 5 on the vertical surface is 60-65 degrees.

The other parts of this embodiment are the same as embodiment 1, and are not described herein again.

Claims

1. The utility model provides a plane tip border deburring tool bit of purpose-built spring, includes that the cross section is sword body (1) of square, its characterized in that: the lower extreme of sword body (1) is cone sword point portion (5) that the cross section is the square, and the upper end is handle of a knife (2), all set up cutting edge (3) in four arriss departments on the lateral wall of sword point portion (5), four cutting edge (3) use the point on the center pin of handle of a knife (2) as centre of a circle equidistance array on the lateral wall of sword point portion (5), be in on the lateral wall of sword point portion (5) the root of cutting edge (3) sets up chip groove (4).

2. The flat end edge deburring tool bit of a special spring as claimed in claim 1, wherein: the knife handle (2) is a cylinder which is coaxial and integrally arranged with the knife body (1).

3. The flat end edge deburring tool bit of a special spring as claimed in claim 1, wherein: the material for manufacturing the cutter point part (5) is high-speed steel.

4. The flat end edge deburring tool bit of a special spring as claimed in claim 1, wherein: one end of the chip flow groove (4) faces the root of the cutter point part, the other end of the chip flow groove faces the top end of the cutter point part (5), and the width of the chip flow groove (4) is larger than 3 mm.

5. The flat end edge deburring tool bit of a special spring as claimed in claim 1, wherein: the included angle between the waist and the bottom side of the trapezoid formed by the projection of the knife tip part (5) on the vertical surface is 60-65 degrees.