CN202527777U

CN202527777U - Pipe fitting cutting tool

Info

Publication number: CN202527777U
Application number: CN2012200832860U
Authority: CN
Inventors: 柯明
Original assignee: NINGBO JIANGDONG KEREN MACHINERY CO Ltd
Current assignee: NINGBO JIANGDONG KEREN MACHINERY CO Ltd
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-11-14
Anticipated expiration: 2022-03-05

Abstract

The utility model discloses a pipe fitting cutting tool which comprises a knife rest (1) and a plurality of blades (2), wherein the plurality of the blades (2) are distributed on a periphery surface of the knife rest (1) in sequence, the distance from the blade (2) edges to the center of the knife rest (1) is sequentially reduced or increased, one end of the knife rest (1) is fixedly connected with a drive rotating shaft (3), and the other end of the knife rest (1) is arranged on a bracket (5) through a bearing (4). A space ring (6) is arranged between two adjacent blades (2), and the distance between the two adjacent blades (2) is equal to the thickness of the space ring (6). The pipe fitting cutting tool can cut a plurality of pipe fittings from inward in sequence from ends of the pipe fittings, and ensure each pipe fitting can be thoroughly cut even the lengths of the blades are not enough to overcome the defect that radiuses of the pipe fittings are different. Therefore, qualification rate is high and manufacture efficiency is improved.

Description

The pipe fitting cutting tool

Technical field

The utility model relates to the cutter field, is a kind of pipe fitting cutting tool that is used for simultaneously the cutting of pipe fitting multistage specifically.

Background technology

In the prior art; The general hobboing cutter cutting tube-like piece that adopts rotation; In order to improve cutting efficiency, multistage cutting when carrying out to pipe fitting, this just need arrange and install a plurality of blades on kerf cutter; The adjacent spacing of described a plurality of blades equates, so that can downcut the consistent a plurality of pipe fittings of length simultaneously.Owing to reasons such as pipe fitting self precision or intensity, the distance (square tube) to the pipe fitting center differs the disalignment that can cause pipe fitting to locational radius or edge, and a plurality of blades on the pipe fitting cutting tool equate to the distance at hobboing cutter center; At this moment, in the process of cutting, cutting tool is from also cutting near pipe fitting in the radial direction; Obviously; Radius less position in position to be cut can cut off in advance on the pipe fitting, and the pipe fitting of cut-out drops, the pipe fitting that possibly also have other not cut off on the pipe fitting that drops; Product under causing cutting is defective or need following process, has reduced cutting efficiency.

The utility model content

The technical problem that the utility model will solve is, provides a kind of and inwardly cuts off the pipe fitting cutting tool of pipe fitting successively from pipe fitting end, overcome the cutting problem that differs and cause because of radius on the pipe fitting length direction.

The technical solution of the utility model is, a kind of pipe fitting cutting tool of following structure is provided, and comprises knife rest and a plurality of blade, and described a plurality of blades are arranged on the outer peripheral face of knife rest successively, and blade edge successively decreases successively or increases progressively to the distance at knife rest center.

Adopt above structure, the utility model compared with prior art has the following advantages: adopt the utility model structure, the tapered shape of a plurality of blades that is arranged on the knife rest distributes, and promptly blade edge successively decreases successively or increases progressively (according to the placement location of pipe fitting to be cut and different) to the distance at knife rest center; During cutting, the parallel placement of pipe fitting with knife rest, long blade is near pipe fitting outer end (end direction); Drive knife rest and rotate at a high speed, make blade on the knife rest gradually near pipe fitting, at this moment; Begin the pipe fitting cutting earlier than long blade, along with the feeding of blade, whole cutter group is cut pipe fitting simultaneously; Even the pipe fitting radius there are differences, and the difference of blade lengths is enough to remedy this defective, inwardly downcut a plurality of pipe fittings successively from pipe fitting end; Guarantee that each pipe fitting that downcuts can both cut off fully, qualification rate is high, thereby has improved production efficiency.

As improvement; One end of knife rest is fixedly connected with the driving rotating shaft, and the other end of knife rest is installed on the support through bearing, and this design makes the two ends of knife rest that the strong point all arranged; Avoid knife rest because of the inclination that self gravitation or other reasons cause, further improved cutting accuracy.

As improvement, be provided with spacer ring between adjacent two blades, the distance between two adjacent knife blades equals the thickness of spacer ring; Like this; The length of cutting pipes is provided with the thickness of spacer ring as required, promptly regulates the distance between two blades, simultaneously; Being provided with of spacer ring can also prevent the blade sideslip, improves the intensity of blade.

As improvement, the two ends of described knife rest are arranged with packing ring, like this, are convenient to the installation of blade, have improved the stability of blade and knife rest assembling.

Description of drawings

Fig. 1 is the structural representation of the pipe fitting cutting tool of the utility model.

Fig. 2 is the vertical view of the pipe fitting cutting tool of the utility model.

As shown in the figure 1, knife rest, 2, blade, 3, drive rotating shaft, 4, bearing, 5, support, 6, spacer ring, 7, first packing ring, 8, second packing ring, 9, locking nut, 10, the side gripper shoe.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

As shown in Figure 1; The pipe fitting cutting tool of the utility model; Comprise knife rest 1 and a plurality of blades 2; Described a plurality of blade 2 is arranged on the outer peripheral face of knife rest 1 and tapered shape successively, and promptly blade 2 edges successively decrease successively or increase progressively (according to the placement location of pipe fitting to be cut and different) to the distance at knife rest 1 center.Above-mentioned described cone-shaped is meant the increasing or decreasing trend of blade to knife rest centre distance, is not the circular cone of rule, is to clip conical head on the basis of circular cone and the round platform that forms, and certainly, its shape can change.

One end of knife rest 1 is fixedly connected with driving rotating shaft 3, and the other end of knife rest 1 is installed on the support 5 through bearing 4, drives rotating shaft 3 and drives knife rests 1 rotation, by 3 pairs of knife rest 1 two end supports of support 5 and driving rotating shaft.

Be provided with the thickness that distance between spacer ring 6, two adjacent knife blades 2 equals spacer ring 6 between adjacent two blades 2, the length of cutting pipes is provided with the thickness of spacer ring 6 as required, promptly regulates the distance between two blades 2.

The two ends of described knife rest 1 are arranged with packing ring, i.e. first packing ring 7 and second packing ring 8, knife rest one end with drive rotating shaft 3 and be connected, the end of the other end adopts locking nut 9 to lock.

Described pipe fitting cutting tool also comprises side gripper shoe 10, and described support 5 is fixed on the side gripper shoe 10, has improved the stability of stent support, and the side fixed form is convenient to the cutting of pipe fitting.

The operation principle of the utility model is following: adopt the utility model structure, the tapered shape of a plurality of blades that is arranged on the knife rest distributes, and promptly blade edge successively decreases successively or increases progressively (according to the placement location of pipe fitting to be cut and different) to the distance at knife rest center; During cutting, the parallel placement of pipe fitting with knife rest, long blade is near pipe fitting outer end (end direction); Drive knife rest and rotate at a high speed, make blade on the knife rest gradually near pipe fitting, at this moment; Begin the pipe fitting cutting earlier than long blade, along with the feeding of blade, whole cutter group is cut pipe fitting simultaneously; Even the pipe fitting radius there are differences; And the difference of blade lengths is enough to remedy this defective, inwardly downcuts a plurality of pipe fittings successively from pipe fitting end, guarantees that each pipe fitting that downcuts can both cut off fully.

Below only be described, but can not be interpreted as it is restriction claim with regard to the utility model preferred embodiment.The utility model not only is confined to above embodiment, and its concrete structure allows variation.In a word, all various variations of in the protection domain of the utility model independent claims, being done are all in the protection domain at the utility model.

Claims

1. a pipe fitting cutting tool comprises knife rest (1) and a plurality of blade (2), and it is characterized in that: described a plurality of blades (2) are arranged on the outer peripheral face of knife rest (1) successively, and blade (2) edge successively decreases successively or increases progressively to the distance at knife rest (1) center.

2. pipe fitting cutting tool according to claim 1 is characterized in that: an end of knife rest (1) is fixedly connected with and drives rotating shaft (3), and the other end of knife rest (1) is installed on the support (5) through bearing (4).

3. pipe fitting cutting tool according to claim 1 is characterized in that: be provided with spacer ring (6) between adjacent two blades (2), the distance between two adjacent knife blades (2) equals the thickness of spacer ring (6).

4. pipe fitting cutting tool according to claim 1 is characterized in that: the two ends of described knife rest (1) are arranged with packing ring.