CN203843326U

CN203843326U - Internal thread tapping device

Info

Publication number: CN203843326U
Application number: CN201420272434.2U
Authority: CN
Inventors: 陈文良
Original assignee: Youjiunn Precision Instrument Co Ltd
Current assignee: Youjiunn Precision Instrument Co Ltd
Priority date: 2014-05-26
Filing date: 2014-05-26
Publication date: 2014-09-24
Anticipated expiration: 2024-05-26

Abstract

The utility model discloses an internal thread tapping device. The device comprises a body provided with most tapping parts. The periphery of each tapping part, successively from the top down, comprises most outward protruding tapping cutters, chip removal steps among every two adjacent tapping cutters, a tapping cutter valley bottom disposed between the tapping cutters and the chip removal steps, and a recess part formed by recess of the surfaces of the chip removal steps. The recess parts are designed in a thread offset space manner, and chip removal volume is increased, chip removal speed and performance are improved, and ensures the cutoff chip of a workpiece to be smoothly removed.

Description

Internal thread tooth attacking device

Technical field

The utility model relates to a kind of tooth attacking device, espespecially a kind of internal thread tooth attacking device.

Background technology

The tapping portion of existing internal thread tooth attacking device, though can utilize its threading tool and workpiece to cut, is often limited to chip discharging structure is not set between two threading tools, and then cause speed and the performance of chip removal, unsatisfactory.In other words, be necessary to be improved and further innovation.

Utility model content

In view of this, utility model designer constantly develops with great concentration and studies, and goes through permanent effort and overcomes extremely difficultly, finally designs the utility model.Therefore, the purpose of this utility model, is to provide a kind of internal thread tooth attacking device, can make the volume space of chip removal increase, to promote speed and the performance of chip removal.

So, on realizing, take off object, a kind of internal thread tooth attacking device of the present utility model, includes:

One body, comprise most tapping portion, each its outer peripheral face of tapping portion from top to bottom sequentially has outstanding most threading tools outwardly, be positioned at a chip removal step between two threading tools, be positioned at the threading tool tooth valley portions between this threading tool and this chip removal step, and one by this chip removal ledge surface deep recess that caves in.

When this body lies against a horizontal datum, the chip removal step of this tapping portion and this horizontal reference line parallel, and the vertical height of this recess is higher than the vertical height of this chip removal step.

Each tapping portion is arranged on this body in the shape of a spiral.

Above-described internal thread tooth attacking device, also comprises four chip areas, and each chip area is arranged with on this body and lays respectively between two tapping portions.

The utility model effect is, respectively this recess spatially belongs to the design that forms screw thread dislocation space, can make the volume space of chip removal increase, and to promote speed and the performance of chip removal, provides the detritus of workpiece after cutting to discharge more smoothly.

Accompanying drawing explanation

Fig. 1 is the stereo appearance figure of the tapping portion of the utility model one embodiment;

Fig. 2, Fig. 2 A are a three-dimensional and partial enlarged drawing of this embodiment;

Aspect one and the enlarged diagram thereof of the recess that Fig. 3, Fig. 3 A are Fig. 2;

Aspect two and the enlarged diagram thereof of the recess that Fig. 4, Fig. 4 A are Fig. 2;

Aspect three and the enlarged diagram thereof of the recess that Fig. 5, Fig. 5 A are Fig. 2;

Aspect four and the enlarged diagram thereof of the recess that Fig. 6, Fig. 6 A are Fig. 2;

Fig. 7 is that the aspect five of recess of Fig. 2 is to the schematic diagram of aspect seven;

Fig. 8, Fig. 8 A are stereo appearance figure and the enlarged diagram thereof of the tapping portion of another enforcement of the utility model.

Description of reference numerals: 1 body; 11 tapping portions; 111 threading tools; 112 chip removal steps; 113 threading tool tooth valley portions; 114 recesses; 115 chip areas.

The specific embodiment

Refer to Fig. 1 to Fig. 7, an embodiment of a kind of internal thread tooth attacking device of the present utility model, includes a body 1.

Described body 1, comprise most tapping portion 11, each tapping portion 11 its outer peripheral face from top to bottom sequentially has outstanding most threading tools 111 outwardly, be positioned at a chip removal step 112 of 111 of two threading tools, be positioned at the threading tool tooth valley portions 113 of 112, this threading tool 111 and this chip removal step, and one by these chip removal step 112 surfaces deep recess 114 that caves in.

When this body 1 lies against a horizontal datum, the chip removal step 112 of this tapping portion 11 is and this horizontal reference line parallel, and the vertical height of this recess 114 is the vertical heights higher than this chip removal step 112.Described internal thread tooth attacking device, also comprises four chip areas 115, and each chip area 115 is be arranged with on this body 1 and lay respectively between two tapping portions 11.

Rely on the combination of above-mentioned each element, as shown in Figures 1 to 7, among this embodiment of the present utility model, respectively this recess 114 spatially belongs to the design that forms screw thread dislocation space, can make the volume space of chip removal increase, to promote speed and the performance of chip removal, provide the detritus of workpiece after cutting to discharge more smoothly.

Refer to Fig. 8, Fig. 8 A, and coordinate referring to Fig. 1 to Fig. 7, another embodiment of a kind of internal thread tooth attacking device of the present utility model, includes a body 1.In this another embodiment, each tapping portion 11 is arranged on this body 1 in the shape of a spiral, therefore, can reach above-mentioned object equally.

More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skills understand, in the situation that do not depart from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but within all falling into protection domain of the present utility model.

Claims

1. an internal thread tooth attacking device, is characterized in that, comprises:

One body, comprise most tapping portion, the outer peripheral face of each tapping portion from top to bottom sequentially has outstanding most threading tools outwardly, be positioned at a chip removal step between two threading tools, be positioned at the threading tool tooth valley portions between this threading tool and this chip removal step, and one by this chip removal ledge surface deep recess that caves in.

2. internal thread tooth attacking device according to claim 1, is characterized in that, when this body lies against a horizontal datum, and the chip removal step of this tapping portion and this horizontal reference line parallel, and the vertical height of this recess is higher than the vertical height of this chip removal step.

3. internal thread tooth attacking device according to claim 1, is characterized in that, each tapping portion is arranged on this body in the shape of a spiral.

4. according to the internal thread tooth attacking device described in any one in claims 1 to 3, it is characterized in that, also comprise four chip areas, each chip area is arranged with on this body and lays respectively between two tapping portions.