CN206139926U

CN206139926U - Adjustable automation shrink nature hobbing cutter cutter

Info

Publication number: CN206139926U
Application number: CN201621132163.6U
Authority: CN
Inventors: 范方亮; 陈明
Original assignee: China Railway Longchang Materials Co Ltd
Current assignee: China Railway Longchang Materials Co Ltd
Priority date: 2016-10-18
Filing date: 2016-10-18
Publication date: 2017-05-03
Anticipated expiration: 2026-10-18

Abstract

The utility model discloses an adjustable automation shrink nature hobbing cutter cutter, including hobbing cutter wheel, activity hobbing cutter guide bar, fixed direction broach shell and spring housing, hobbing cutter wheel is fixed at activity hobbing cutter guide bar front end, after activity hobbing cutter guide bar passes the hole rather than the fixed direction broach shell of complex, fixes the end at activity hobbing cutter guide bar with the baffle, after the spring is placed to spring housing downthehole, with spring housing and fixed direction broach shell fixed connection together. The utility model discloses a cutter not only simple structure does benefit to the stability of operating and having improved product quality and performance, and this utility model has effectively utilized the regular elastic deformation power of spring and activity hobbing cutter guide bar and the cooperation of fixed direction broach shell, reaches the rolling force of required invariant, the effectual influence of having avoided the straightness accuracy and the machining tolerance of product. The utility model discloses a pressure non -uniform stress of the inhomogeneous production of atress when having overcome the rigidity hobbing cutter is even, the deformation and the surface quality of product to the quality of product has been improved.

Description

A kind of automatic contractility hobboing cutter cutter of scalable

Technical field

This utility model is related to machinery industry bolt of long stem to be increased bearing stress and reduces a kind of new of surface roughness Type hobboing cutter cutter.

Background technology

Now with China's industrial expansion, high-strength bolt is used in numerous areas, it is particularly more severe in environment In the state of work (such as automobile engine, shield machine), produce bolt when need to ensure its surface roughness improving The surface accuracy of bolt and increase compressive stress to improve the intensity of bolt on its surface.Using traditional rigidly connected hobboing cutter, In processing workpiece fabrication, the technical experience of operator need to be leaned on to control feeding and the withdrawing of knife, not only hobboing cutter and bolt surface Pressure it is wayward, and because of the impact of bolt linearity and machining tolerance, hobboing cutter is very uneven with the pressure of bolt, from And the compressive stress that bolt surface obtains also uneven possibly even some point pressures are excessive causes workpiece bows to deform, cause bolt The compressive stress and surface quality on surface is not readily reachable by higher requirement.

The content of the invention

This utility model overcomes shortcoming of the prior art, there is provided a kind of automatic contractility hobboing cutter cutter of scalable.

The technical solution of the utility model is：A kind of automatic contractility hobboing cutter cutter of scalable, including hobboing cutter wheel, activity rolling Knife guide post, fixed guide broach shell and spring housing, the hobboing cutter wheel is fixed on movable hobboing cutter guide post front end, and movable hobboing cutter is oriented to Baffle plate is fixed on the end of movable hobboing cutter guide post, in spring housing by bar through after the hole of the fixed guide broach shell coordinated with it Hole in place spring after, spring housing is fixed together with fixed guide broach shell.

Compared with prior art, the utility model has the advantages that：

The rule type elastic deformation force that this utility model passes through spring, so as to obtain one to the constant rolling needed for workpiece Pressure, in process due to spring automatic contraction elasticity, roll power by workpiece machining tolerance and linearity shadow Ring little, given strength is more stable, not only significantly reduces the difficulty of processing of operator, more effectively improves product Performance, surface quality and bulk article stability.

The automatic contractility hobboing cutter cutter of scalable of the present utility model is not only simple in structure beneficial to operation and improves product The stability of quality and performance, the utility model is effectively utilized the regular elastic deformation force of spring and movable hobboing cutter guide post Coordinate with fixed guide broach shell, constant rolling power needed for reaching；This utility model make use of the automatic contractility of spring, drive Hobboing cutter shrinks automatically when pressure is uneven, effectively avoids the linearity of product and the impact of machining tolerance.The practicality is new When type overcomes rigid hobboing cutter discontinuity produce compressive stress is uneven, product deformation and surface quality, so as to improve The quality of product.

Description of the drawings

This utility model will be illustrated by example and with reference to the appended drawing, wherein：

Fig. 1 is the front view of this cutter；

Fig. 2 is the top view of this cutter.

Specific embodiment

A kind of automatic contractility hobboing cutter cutter of scalable, as shown in Figure 1 and Figure 2, including：Hobboing cutter wheel 1, movable hobboing cutter are oriented to Bar 2, fixed guide broach shell 3, baffle plate 4, spring housing 5, spring 6, connecting screw rod 7, pin 8, jacket casing 9 etc., wherein：

Jacket casing 9 is arranged in the hole of hobboing cutter wheel 1, and hobboing cutter wheel 1 is fixed on the movable front end of hobboing cutter guide post 2 by pin 8, and Hobboing cutter wheel 1 can be enable freely to rotate on movable hobboing cutter guide post 2；Movable hobboing cutter guide post 2 is led through the fixation coordinated with it To after the hole on broach shell 3, baffle plate 4 is fixed on movable hobboing cutter guide post 2 with connecting screw rod 7.Spring 6 is freely put into into spring After in the hole of set 5, fixed guide broach shell 3 and spring housing 5 are connected and fixed to together with bolt, and are guaranteed under free state The one end of spring 6 contacts with baffle plate 4, the other end is contacted with spring housing 5.By the automatic contractility hobboing cutter knife of the above-mentioned scalable for assembling Tool is fixed on lathe knife seat 11 (fixed by the fixed guide broach shell 3 and lathe knife seat 11).

Operation principle of the present utility model is：By the automatic contractility hobboing cutter cutter of scalable, cutter is fixed on into lathe Knife rest seat surface, with workpiece 10 to knife after, mobile lathe knife seat causes the perseverance that tail springs reach certain deformation to obtain needing Surely strength F (be adjusted according to different needs and obtain different rolling power) is rolled.In the linearity and the mistake of processing of workpiece Under the influence of difference, automatically controlled by the trickle contraction of spring to the rolling power of workpiece, so as to not only can guarantee that bearing stress It is highly uniform, moreover it is possible to ensure the quality on the original linearity of workpiece and surface.

Claims

1. the automatic contractility hobboing cutter cutter of a kind of scalable, it is characterised in that：Including hobboing cutter wheel, movable hobboing cutter guide post, fixation Broach shell and spring housing are oriented to, the hobboing cutter wheel is fixed on movable hobboing cutter guide post front end, and movable hobboing cutter guide post is passed through matches somebody with somebody with it Behind the hole of the fixed guide broach shell of conjunction, baffle plate is fixed on into the end of movable hobboing cutter guide post, in the hole of spring housing bullet is placed After spring, spring housing is fixed together with fixed guide broach shell.

2. the automatic contractility hobboing cutter cutter of a kind of scalable according to claim 1, it is characterised in that：The baffle plate passes through Connecting screw rod is fixed on the end of movable hobboing cutter guide post.

3. the automatic contractility hobboing cutter cutter of a kind of scalable according to claim 1, it is characterised in that：The fixed guide Together with broach shell is bolted to connection with spring housing.

4. the automatic contractility hobboing cutter cutter of a kind of scalable according to claim 1, it is characterised in that：In the hobboing cutter wheel Hole in arrange jacket casing.

5. the automatic contractility hobboing cutter cutter of a kind of scalable according to claim 4, it is characterised in that：The hobboing cutter wheel leads to Cross pin to be fixed on movable hobboing cutter guide post.

6. the automatic contractility hobboing cutter cutter of a kind of scalable according to claim 1, it is characterised in that：The fixed guide Broach shell is fixedly installed on lathe knife seat.