CN216028525U

CN216028525U - Round pipe chamfering device

Info

Publication number: CN216028525U
Application number: CN202121125242.5U
Authority: CN
Inventors: 王德胜
Original assignee: Jinhua Weike Industrial & Trading Co ltd
Current assignee: Jinhua Weike Industrial & Trading Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-03-15
Anticipated expiration: 2031-05-24

Abstract

The utility model belongs to the technical field of manual tools, in particular to a circular tube chamfering device, which comprises an outer cylinder; the cutter is fixed in the outer barrel and comprises a plurality of inclined blades, and the upper side and the lower side of each inclined blade are respectively provided with an inner cutter head and an outer cutter head for chamfering; the inclined blades are sequentially and circumferentially arranged around the axis of the outer cylinder and fixed in the outer cylinder to form a conical cutter; the inner cutter heads are encircled to form an inner conical surface for chamfering the outer end of the circular tube, and all the outer cutter heads are encircled to form an outer conical surface for chamfering the inner end of the circular tube. The chamfering tool is provided with the front conical surface and the back conical surface, the chamfering of the inner end surface of the circular tube is carried out by extending the outer conical surface of the tool into the inner part of the circular tube and rotating the outer conical surface of the tool, and the chamfering of the outer end surface of the circular tube is carried out by abutting the inner conical surface of the tool against the outer end of the circular tube.

Description

Round pipe chamfering device

Technical Field

The utility model belongs to the technical field of manual tools, and particularly relates to a circular tube chamfering device.

Background

At present, when some shaft workpieces or round pipes are used, the two ends of the shaft workpieces or the round pipes are required to be subjected to outer corner machining such as deburring and chamfering, and the commonly adopted method is to grind by using grinding paper or a file, but the operation requirement is fine, the machining precision is low, the error is large, and time and labor are wasted.

The Chinese utility model 201020291486.6 discloses a pipe orifice chamfering device, which comprises a cutting device and a fixing device, wherein the cutting device comprises a sliding seat and a blade seat fixedly connected with the sliding seat, and the blade seat is provided with a horn-mouth-shaped blade mounting surface; the fixing device comprises a pipe orifice fixing device and a pipe body fixing device, the pipe orifice fixing device comprises a roller arranged on the blade seat, and the roller is located at the inner end of the horn-mouth-shaped blade mounting surface. The utility model discloses a can only carry out the chamfer to orificial extrados, function singleness and overall structure are complicated.

Disclosure of Invention

The utility model aims to provide a round tube chamfering device which is simple in structure, convenient to organize and firmer.

The purpose of the utility model is realized as follows:

a circular tube chamfering device comprises an outer cylinder; and

the cutter is fixed in the outer barrel and comprises a plurality of inclined blades, and the upper side and the lower side of each inclined blade are respectively provided with an inner cutter head and an outer cutter head for chamfering; the inclined blades are sequentially and circumferentially arranged around the axis of the outer cylinder and fixed in the outer cylinder to form a conical cutter;

the inner cutter heads are encircled to form an inner conical surface for chamfering the outer end of the circular tube, and all the outer cutter heads are encircled to form an outer conical surface for chamfering the inner end of the circular tube.

Further, a tool rest is arranged in the outer cylinder, the tool rest comprises a plurality of flanges arranged on the outer cylinder, a tool groove with the shape matched with the tool is formed between the flanges, and the tool is fixed in the tool groove.

Furthermore, a fastening hole facing the cutter groove is formed in the outer cylinder, and a fastening groove is formed in the side end of the inclined blade; when the cutter is positioned in the cutter groove, a fastening piece is arranged in a fastening hole and abuts against the fastening groove, so that the cutter is fixed in the cutter groove.

Furthermore, a plurality of wing-shaped blades are arranged in the outer cylinder, and each wing-shaped blade comprises two symmetrically connected inclined blades; the wing-shaped blades are axially connected in the outer cylinder, so that the inner cutter head or/and the outer cutter head of each inclined blade are positioned on the same conical surface.

Furthermore, the wing-shaped blades are the same in size, and connecting notches which are staggered in sequence are respectively arranged at the symmetrical axes of the wing-shaped blades.

Furthermore, the two wing-shaped blades comprise a first wing-shaped blade and a second wing-shaped blade, the first wing-shaped blade is provided with an upper connecting notch, and the second wing-shaped blade is provided with a lower connecting notch.

Furthermore, the outer wall of the outer cylinder is provided with anti-skid grains.

Further, the top angle of the cross section of the cutter is 40-120 degrees.

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

the chamfering tool is provided with the front conical surface and the back conical surface, the chamfering of the inner end surface of the circular tube is carried out by extending the outer conical surface of the tool into the inner part of the circular tube and rotating the outer conical surface of the tool, and the chamfering of the outer end surface of the circular tube is carried out by abutting the inner conical surface of the tool against the outer end of the circular tube, so that the chamfering tool is simple and quick to use, convenient to operate and good in chamfering effect; meanwhile, the cutter is conical, so that the cutter can be adapted to round pipes with different calibers, and the round pipes with different calibers are treated only by abutting the round pipe chamfering device on the round pipes, so that the operation is simple.

According to the utility model, the cutter can be detachably arranged in the cutter frame through the fastener limiting structure, and when the cutter is damaged, the cutter can be detached for replacement, so that the overall durability of the product is increased.

Drawings

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

FIG. 2 is a side sectional view of the present invention;

FIG. 3 is a schematic structural view of an outer cylinder;

FIG. 4 is a schematic view of the construction of the tool;

fig. 5 is an exploded view of the cutter.

The reference numerals in the figures denote the meanings:

1. an outer cylinder; 11. a fastening hole; 12. anti-skid lines; 2. a cutter; 21. a wing blade; 211. a tilting blade; 212a, an inner cutter head; 212b, an outer cutter head; 213. a connecting gap; 21a, a first wing blade; 21b, a second wing blade; 213a, an upper connection gap; 213b, lower connection gap; 22. a fastening groove; 23. a fastener; 3. a tool holder; 31. blocking edges; 32. a knife groove.

Detailed Description

The utility model is further described below with reference to specific examples:

example 1:

a circular tube chamfering device comprises an outer cylinder 1; and

the cutter 2 is fixed in the outer cylinder, the cutter 2 comprises a plurality of inclined blades 211, and the upper side and the lower side of each inclined blade 211 are respectively provided with an inner cutter head 212a and an outer cutter head 212b for chamfering; the inclined blades 211 are sequentially and circumferentially arranged around the axis of the outer cylinder 1 and fixed in the outer cylinder 1 to form a conical cutter 2;

the inner tool bits 212a enclose an inner conical surface for chamfering the outer end of the circular tube, and all the outer tool bits 212b enclose an outer conical surface for chamfering the inner end of the circular tube.

As shown in fig. 1 and 2, the inner end surface of the circular tube is chamfered by the outer conical surface of the tool 2, and the outer end surface of the circular tube is chamfered by the inner conical surface of the tool 2. Specifically, the outer conical surface of the cutter 2 extends into the inner part of the circular tube and rotates to chamfer the inner end surface of the circular tube, and the inner conical surface of the cutter 2 abuts against the outer end of the circular tube to chamfer the outer end surface of the circular tube, so that the chamfering tool is simple and quick to use, convenient to operate and good in chamfering effect; meanwhile, the cutter 2 is conical and can be adapted to round pipes with different calibers, and the round pipes with different calibers are treated only by abutting the round pipe chamfering device on the round pipes, so that the operation is simple. Generally, the cross-section vertex angle of the cutter 2 is 40 degrees to 120 degrees, wherein 60 degrees or 90 degrees is preferred; when the section apex angle of cutter 2 is located above-mentioned angular interval, this cutter can most specification pipe of adaptation, especially 60 degrees or 90 degrees, and then can be better carry out the pipe chamfer.

Referring to fig. 3 in particular, a knife rest 3 is arranged in the outer cylinder 1, the knife rest 3 comprises a plurality of ribs 31 arranged on the outer cylinder 1, a knife groove 32 with a shape matched with the knife 2 is formed between the ribs 31, and the knife 2 is fixed in the knife groove 32. The flange 31 is a bending rod with two ends fixed on the inner wall of the outer cylinder 1 and the middle end bent inwards; in the present embodiment, there are four bending rods, each bending rod has the same size, the bending angle of each bending rod is about ninety degrees, and the knife grooves 32 are formed between the bending rods. The purpose of arranging the tool rest 3 is that a general tool 2 is thin and easy to break and scrap when in use, and the tool 2 can be effectively protected by arranging the tool rest 3, so that the service life of the tool 2 is prolonged.

Further, as shown in fig. 2, a fastening hole 11 facing the cutter groove 32 is formed in the outer cylinder 1, and a fastening groove 22 is formed in one side of the inclined blade 211; when the tool 2 is positioned in the pocket 32, the tool 2 is fixed in the pocket 32 by providing a fastening member 23 in the fastening hole 11 and abutting in the fastening groove 22. The fastening slot 22 is formed at the tail part of the inclined blade 211 and is positioned between two adjacent flanges 31; the inclined blade 211 is a parallelogram as a whole, the upper and lower long sides of the parallelogram are respectively provided with the upper cutter head 212a and the outer cutter head 212b, and the short side of one side of the parallelogram is provided with the fastening groove 22; when the inclined blade 211 is fixed, the inclined blade 211 is positioned in the knife slot 32, so that the short side of one side of the inclined blade 211 abuts against the inner wall of the outer cylinder 1, the fastening groove 22 on the inclined blade 211 is opposite to the fastening hole 11, at this time, the fastening member 23 is put into the fastening hole 11 to abut against, and a user can fix the fastening member 23 inside by arranging corresponding threads in the surface of the fastening member 23 and the fastening hole 11, so that the inclined blade 211 is limited up and down by the fastening member 23.

The cutter 2 can also be directly molded in the outer cylinder 1 when the outer cylinder 1 is cast, or fixed in the outer cylinder 1 through a welding structure, but in the actual use process, the cutter 2 is easy to wear and break, and if the cutter 2 is directly and integrally molded in the outer cylinder 1, the whole chamfering device cannot be used after the cutter 2 is damaged; in the utility model, the cutter 2 is detachably arranged in the cutter frame 3 through the limiting structure of the fastener 23, and when the cutter 2 is damaged, the cutter can be detached for replacement, so that the overall durability of the product is improved.

Further, a plurality of wing-shaped blades 21 are arranged in the outer cylinder 1, and each wing-shaped blade 21 comprises two symmetrically connected inclined blades 211; the wing blades 21 are axially connected in the outer cylinder 1 such that the inclined blades 211 are located on the same conical surface.

Referring to fig. 4 and 5 in detail, in this example, each of the wing blades 21 has the same size, and the wing blades 21 are provided in two pieces, including a first wing blade 21a and a second wing blade 21b, the first wing blade 21a is provided with an upper connection notch 213a, and the second wing blade 21b is provided with a lower connection notch 213 b. When connected, the axis of symmetry of the first wing insert 21a is located in the lower connection notch 213b on the second wing insert 21b, and the axis of symmetry of the second wing insert 21b is located in the lower connection notch 213b on the first wing insert 21 a; because the two wing-shaped blades 21 have the same specification and size, when the two wing-shaped blades 21 are connected, the inner cutter head 212a or the outer cutter head 212b of the inclined blade 211 is respectively positioned on the same inner conical surface or the same outer conical surface, so that all the inner cutter head 212a and the outer cutter head 212b can perform chamfering work during chamfering, and the chamfering efficiency is maximized.

In practice, the wing blade 21 may be provided with three pieces, and each wing blade 21 is provided with the connecting notch 213. Specifically, the symmetrical axis of the wing-shaped blade 21 is divided into three sections according to the thickness thereof, two sections of connecting notches 213 with upward thickness are formed in the bottom wing-shaped blade 21, one section of connecting notch 213 with a thickness is formed in each of the front and rear ends of the middle wing-shaped blade 21, two sections of connecting notches 213 with downward thickness are formed in the top wing-shaped blade 21, and three wing-shaped blades 21 are sequentially connected to form the cutter 2, i.e., a user can set the connecting notches 213 with different thicknesses and directions according to the number of the wing-shaped blades 21, and finally, the insertion of each wing-shaped blade 21 is realized.

Further, as shown in fig. 1, the outer wall of the outer cylinder 1 is provided with anti-slip threads 12, and the anti-slip threads 12 are used for slipping when a user grabs the circular tube chamfering device and rotates, so that the use stability of the circular tube chamfering device is improved.

Example 2:

most of the structure of the present embodiment is the same as that of example 1, except that the cutting tool 2 is formed by sequentially arranging a plurality of inclined blades 211 circumferentially around the center of the outer cylinder 1 in the outer cylinder 1, and the inclined blades 211 are directly welded or manufactured by an integrally formed structure.

This structure allows the inner tip 212a or the outer tip 212b on the front and back conical surfaces to be located on the same inner conical surface or the same outer conical surface, respectively, but welding the plurality of inclined blades 211 is relatively complicated compared to manufacturing the wing-shaped blades 21.

Example 3:

most of the structure of the present embodiment is the same as that of example 1, except that the wing-shaped blades 21 in the cutter 2 have different sizes and specifications, wherein the first wing-shaped blade 21 is not provided with the connecting notch 213, the thickness of the next wing-shaped blade 21 is larger than that of the first wing-shaped blade 21 and is provided with the connecting notch 213 adapted to the thickness of the first wing-shaped blade 21, and the first wing-shaped blade 21 is connected through the connecting notch 213; the next wing blade 21 likewise has a larger thickness specification and a larger depth of the connecting notch 213 for connecting two wing blades 21. This configuration ensures that at least one side of the ramping insert 211 is on the same conical surface.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. A circular tube chamfering device is characterized in that: comprises an outer cylinder (1); and

the cutter (2) is fixed in the outer cylinder, the cutter (2) comprises a plurality of inclined blades (211), and the upper side and the lower side of each inclined blade (211) are respectively provided with an inner cutter head (212a) and an outer cutter head (212b) for chamfering; the inclined blades (211) are sequentially and circumferentially arranged around the axis of the outer cylinder (1) and fixed in the outer cylinder (1) to form a conical cutter (2);

the inner cutter heads (212a) enclose an inner conical surface for chamfering the outer end of the circular tube, and all the outer cutter heads (212b) enclose an outer conical surface for chamfering the inner end of the circular tube.

2. The round tube chamfering device according to claim 1, wherein: the outer cylinder (1) is internally provided with a knife rest (3), the knife rest (3) comprises a plurality of flanges (31) arranged on the outer cylinder (1), a knife groove (32) with the shape matched with the knife (2) is formed between the flanges (31), and the knife (2) is fixed in the knife groove (32).

3. The round tube chamfering device according to claim 2, wherein: a fastening hole (11) facing the cutter groove (32) is formed in the outer cylinder (1), and a fastening groove (22) is formed in the side end of the inclined blade (211); when the cutter (2) is positioned in the cutter groove (32), a fastening piece (23) is arranged in a fastening hole (11) and is abutted in the fastening groove (22) to fix the cutter (2) in the cutter groove (32).

4. The round tube chamfering device according to any one of claims 1 to 3, wherein: a plurality of wing-shaped blades (21) are arranged in the outer cylinder (1), and each wing-shaped blade (21) comprises two symmetrically connected inclined blades (211); the wing-shaped blades (21) are axially connected in the outer cylinder (1) so that the inner cutter head (212a) or/and the outer cutter head (212b) of each inclined blade (211) are positioned on the same conical surface.

5. The round tube chamfering device according to claim 4, wherein: the wing-shaped blades (21) are the same in size, and connecting notches (213) staggered in sequence are respectively arranged on the symmetrical shafts of the wing-shaped blades (21).

6. The round tube chamfering device according to claim 5, wherein: the two wing-shaped blades (21) comprise a first wing-shaped blade (21a) and a second wing-shaped blade (21b), an upper connecting notch (213a) is formed in the first wing-shaped blade (21a), and a lower connecting notch (213b) is formed in the second wing-shaped blade (21 b).

7. The round tube chamfering device according to claim 1, wherein: the outer wall of the outer cylinder (1) is provided with anti-skid grains (12).

8. The round tube chamfering device according to claim 1, wherein: the top angle of the cross section of the cutter (2) is 40-120 degrees.