CN201108966Y

CN201108966Y - Thin-walled parts machining cutter

Info

Publication number: CN201108966Y
Application number: CNU200720171784XU
Authority: CN
Inventors: 高云峰; 吴宏杰; 夏志红
Original assignee: Shenzhen Hans Laser Technology Co Ltd
Current assignee: Shenzhen Hans Laser Technology Co Ltd
Priority date: 2007-09-11
Filing date: 2007-09-11
Publication date: 2008-09-03
Anticipated expiration: 2017-09-11

Abstract

The utility model discloses a cutting tool for processing parts with thin walls. The cutting tool comprises a tool body and a tool bit, wherein, the tool body comprises tool bars and a tool shank for installing the tool bars, the tool bars are provided with two, and the end part of the two tool bars can be both provided with the tool bit. The two tool bars are integrated with the tool shank into a whole, or are respectively welded and installed on the tool shank in a locking way, and the included angle between the two tool bars is larger than 15 DEG. The tool bit is installed at the end part of the tool bars by a locking bolt. In the utility model, two tool edges are adopted to process the inside circle and the excircle of the parts with thin walls, the wall thickness is decided by the distance between the two tool edges, the tool bars and the tool edges can be adjusted freely, thereby improving the process quality of the processed parts, ensuring that the percent of pass of products reaches to 100 percent, and effectively improving the efficiency by over one time.

Description

A kind of thin-walled parts process tool

[technical field]

The utility model relates to a kind of cutter, especially about a kind of thin-walled parts process tool.

[technical background]

As everyone knows; the processing of thin-wall workpiece is one of machined into difficult point; for example in machining spindle insulation sleeve (for example its length is 102mm; external diameter 71mm; endoporus 67mm, wall thickness 2 native 0.02mm) process, use traditional process tool will have following problem: 1) wall thickness tolerance do not reach necessary requirement and the wall thickness that processes inadequately evenly, the appearance roughness is very poor; 2) work that easily to produce vibrations, cracking, distortion serious in the process, 3) working (machining) efficiency is low.

[utility model content]

The technical problem that the utility model institute desire solves provides a kind of crudy of processing work and thin-walled parts process tool that working (machining) efficiency improves of improving.

The technical scheme that the utility model adopted is: a kind of thin-walled parts process tool, comprise cutter hub, cutter head, and cutter hub comprises knife bar, is used to install the handle of a knife of knife bar, and knife bar is two, and cutter head all can be installed in two knife bar ends.

Described two knife bars and handle of a knife are one-body molded, are extended to form to a side by handle of a knife, are an angle between two knife bars.

Described two knife bars are welded on respectively on the handle of a knife, are an angle between two knife bars.

Described two knife bars are locked on the handle of a knife with locked instrument, are an angle between two knife bars.

Described angle is greater than 15 degree.

Described cutter head is installed in the knife bar end with lock-screw.

The cutting edge inclination of described cutter head is the 5-7 degree, and front clearance is the 1-3 degree.

The main cutting edge of described cutter head becomes 75 degree, front cutting edge and workpiece angle 2-4 degree with the angle of processing work.

The technique effect that the utility model reached is: the utility model adopts two blades inside and outside circle of processing thin-walled part simultaneously, wall thickness is by the distance decision between two blades, but knife bar and blade free adjustment, adopt the utility model cutter processing parts, can improve the crudy of processing parts, make product qualification rate reaching 100%, efficient is enhanced about more than once.

[description of drawings]

The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the stereogram of the utility model thin-walled parts process tool.

Fig. 2 is the cutter head stereogram of the utility model thin-walled parts process tool.

Fig. 3 is a lateral plan of the cutter head of the utility model thin-walled parts process tool.

Fig. 4 is the another side view of the cutter head of the utility model thin-walled parts process tool.

Fig. 5 is a C place enlarged drawing among Fig. 3 of the utility model thin-walled parts process tool.

[specific embodiment]

As shown in Figure 1, the utility model cutter comprises cutter hub 10, cutter head 20, cutter hub 10 comprises knife bar 12, handle of a knife 14, knife bar 12 is two, can be one-body molded with handle of a knife 14, and extend to form to a side by handle of a knife 14 1 ends, perhaps knife bar 12 respectively is integral with handle of a knife 14 and separates manufacturing, thereafter two knife bars 12 is welded respectively or is fixed on the handle of a knife 14 with locking devices such as screws.When making cutter hub 10, need make 12 of two knife bars form an angle V-shaped layout.When processing work, can make a knife bar 12 parallel with workpiece, another knife bar 12 and workpiece are at angle, as the utility model preferred embodiment when the processing thin-walled spindle insulating cover, one knife bar is parallel to workpiece, and another knife bar and workpiece have the above angle of 15 degree, and purpose is to be convenient to chip removal.In addition, at the end of two knife bars 12 fluting 16.

Again simultaneously as Fig. 2～and shown in Figure 5, the utility model cutter head 20 comprises installation portion 21, cutting portion 22, installation portion 21 can stretch in the end fluting 16 of knife bar 12, and locks with lock screw 30.Loosening lock screw 30 can be regulated the cutting edge that is installed in the cutter head 20 on two knife bars 12 or the distance between the point of a knife, or a micromatic setting can be installed again, so that accurately regulate distance between the cutter head 20 according to the thickness of processing work, length etc.The main cutting edge 23 and the workpiece angle C of cutting portion 22 is 75 degree (showing as Fig. 4), front cutting edge 24 is 2-4 degree (as shown in Figure 4) with workpiece angle D, cutting edge inclination A is the 5-7 degree, front clearance B is 1-3 degree (as shown in Figure 5), and such cutter structure can be when guaranteeing that two blades cut simultaneously, can also reduce cutting force, make chip removal smooth, good heat dissipation, the surface smoothness of raising processing work.

The utility model cutter earlier with part roughing inside and outside circle to be processed, is adjusted point of a knife in use Distance and lathe tool position, inside and outside circle is cut in the simultaneously feeding of two cutter heads. Adopt this kind tool sharpening thin-wall workpiece Benefit is, the first, because the Major Difficulties of thin-wall workpiece is workpiece rigidity deficiency, and meeting in process Produce distortion and vibrations, the utility model cutter is processed simultaneously because of inside and outside circle, and the cutting force of two points of a knife offsets Disappear, avoided the radial load of lathe tool to produce vibrations; The second, workpiece is by the locating distance of two lathe tool cutter heads From control, can not change because of machine tool accuracy, not high to the required precision of lathe itself; The 3rd, by Process simultaneously in inside and outside circle, but and once-forming, greatly saved process time.

Claims

1. a thin-walled parts process tool comprises cutter hub, cutter head, and cutter hub comprises knife bar, is used to install the handle of a knife of knife bar, it is characterized in that: knife bar is two, and cutter head all can be installed in two knife bar ends.

2. thin-walled parts process tool as claimed in claim 1 is characterized in that: described two knife bars and handle of a knife are one-body molded, are extended to form to a side by handle of a knife, are an angle between two knife bars.

3. thin-walled parts process tool as claimed in claim 1 is characterized in that: described two knife bars are welded on respectively on the handle of a knife, are an angle between two knife bars.

4. thin-walled parts process tool as claimed in claim 1 is characterized in that: described two knife bars are locked on the handle of a knife with locked instrument, are an angle between two knife bars.

5. as claim 2,3 or 4 described thin-walled parts process tools, it is characterized in that: described angle is greater than 15 degree.

6. thin-walled parts process tool as claimed in claim 1 is characterized in that: described cutter head is installed in the knife bar end with lock-screw.

7. thin-walled parts process tool as claimed in claim 6 is characterized in that: the cutting edge inclination of described cutter head is the 5-7 degree, and front clearance is the 1-3 degree.

8. thin-walled parts process tool as claimed in claim 7 is characterized in that: the main cutting edge of described cutter head becomes 75 degree, front cutting edge and workpiece angle 2-4 degree with the angle of processing work.