CN216680274U

CN216680274U - Three-point locking boring cutter holder

Info

Publication number: CN216680274U
Application number: CN202220162208.3U
Authority: CN
Inventors: 江文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-07
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a three-point locking boring tool apron. This three point locking boring blade holder includes T type pedestal, has seted up the through-hole on the T type terminal surface of T type pedestal, and the lateral wall of through-hole is provided with two fixed lamella bodies and a slip lamella body, and two fixed lamella bodies and a slip lamella body are the tripod tendency, and the arc surface and the through-hole of two fixed lamella bodies are coaxial, and the back of slip lamella body is provided with a plurality of locking bolt, and T type pedestal has seted up with locking bolt complex screw thread through-hole, and locking bolt orders about slip lamella body and two fixed lamella body cooperation centre gripping cutter arbor. The utility model solves the problem that the fixed cutter in the prior art is difficult to ensure the processing precision and the finish degree of the product.

Description

Three-point locking boring cutter holder

Technical Field

The utility model relates to the technical field of machining equipment, in particular to a three-point locking boring cutter holder.

Background

The prior publication No. CN102049539A entitled "A rapid clamping and positioning numerical control boring cutter bar tool apron" discloses that three fastening positioning holes are vertically arranged on the inner wall of a tool containing groove, and three bolts are connected by screw threads to fasten a cutter bar. However, there is an assembly tolerance between the cutter bar and the tool holding groove, the bolt pushes the cutter bar against the inner side wall of the tool holding groove from one side, the axis of the cutter bar is slightly offset from the axis of the tool holding groove, i.e. the cutter bar is not coaxial with the tool holding groove, and the cutter bar only bears the pressing force in the direction parallel to the bolt, when the cutter performs inner hole cutting, the cutter bar slightly vibrates in the direction perpendicular to the bolt, so that the machining precision and the finish of the product are difficult to ensure.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide a three-point locking boring tool apron which can ensure the machining precision and the finish degree of a product.

In order to achieve the purpose, the three-point locking boring tool holder adopts the technical scheme that:

the utility model provides a three point locking boring blade holder, includes T type pedestal, has seted up the through-hole on the T type terminal surface of T type pedestal, and the lateral wall of through-hole is provided with two fixed lamella bodies and a slip lamella body, and two fixed lamella bodies and a slip lamella body are the tripod and are sufficient, and the arc surface and the through-hole of two fixed lamella bodies are coaxial, and the back of slip lamella body is provided with a plurality of locking bolt, and T type pedestal has seted up with locking bolt complex screw thread through-hole, and locking bolt orders about slip lamella body and two fixed lamella body cooperation centre gripping cutter arbor.

Preferably, the sliding valve body is integrally formed with the T-shaped seat body through a wavy connecting block.

Preferably, the sliding distance of the sliding valve body is 0.05mm-0.1 mm.

Preferably, the arc surface of the sliding petal body and the arc surfaces of the two fixed petal bodies have the same diameter, and the diameter of the arc surface is the same as the outer diameter of the cutter bar.

Preferably, the fixed flap body and the T-shaped seat body are integrally formed.

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

when the cutter is assembled, the cutter bar is attached to the arc surfaces of the two fixed petal bodies, the locking bolt is screwed, the locking bolt drives the sliding petal bodies, the sliding petal bodies and the two fixed petal bodies are matched to clamp the cutter bar, the arc surfaces of the fixed petal bodies are coaxial with the through hole, the coaxiality of the cutter bar and the through hole can be guaranteed, the balance of stress of the cutter bar is guaranteed by the two fixed petal bodies and the sliding petal bodies which are in a tripod situation, the vibration of the cutter bar in the machining process is avoided, and the machining precision and the finish degree of a product are improved.

Drawings

FIG. 1 is an exploded view of a three point locking boring head holder;

FIG. 2 is a top view of a three point locking boring head carriage.

The novel seat comprises a base body, a through hole, a fixed petal body, a sliding petal body, a connecting block, a locking bolt and a threaded through hole, wherein the base body comprises 1-T-shaped base body, 2-through hole, 3-fixed petal body, 4-sliding petal body, 5-wavy connecting block, 6-locking bolt and 7-threaded through hole.

Detailed Description

The present invention is further illustrated in the accompanying drawings and detailed description, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that various equivalent modifications of the utility model shall fall within the scope of the appended claims after reading this disclosure.

As shown in fig. 1-2, a three-point locking boring tool holder comprises a T-shaped holder body 1, a through hole 2 is machined on a T-shaped end face of the T-shaped holder body through linear cutting, two fixed petal bodies 3 and a sliding petal body 4 are simultaneously linearly cut on a side wall of the through hole, the two fixed petal bodies and the sliding petal body are in a tripod posture, circular arc surfaces of the two fixed petal bodies are coaxial with the through hole, wavy connecting blocks 5 are linearly cut on two sides of the sliding petal body, so that the sliding petal body can elastically slide in the vertical direction of the through hole, the sliding distance is 0.08mm, four locking bolts 6 are arranged on the back surface of the sliding petal body, a threaded through hole 7 matched with the locking bolts is formed in the T-shaped holder body, the locking bolts drive the sliding petal body to be matched with the two fixed petal bodies to clamp a tool bar, and the circular arc surfaces of the sliding petal bodies are equal in diameter to the circular arc surfaces of the two fixed petal bodies and are equal to the outer diameter of the tool bar.

The specific working process and principle of the utility model are as follows: the cutter arbor inserts the through-hole, and with the arc surface laminating of two fixed lamella bodies, twist the locking bolt one by one again, slight deformation takes place for the wavy connecting block, the arc surface of slip lamella body moves towards the cutter arbor, with two fixed lamella body cooperation centre gripping cutter arbor, the arc surface and the through-hole of fixed lamella body are coaxial, consequently, can guarantee the coaxial of cutter arbor and through-hole, it is balanced to guarantee the cutter arbor atress with a slip lamella body that two fixed lamella bodies that are the tripod tendency, avoid the cutter arbor to take place to vibrate in the course of working, thereby improve the machining precision and the smooth finish of product.

Claims

1. A three-point locking boring cutter seat is characterized in that: including T type pedestal, seted up the through-hole on the T type terminal surface of T type pedestal, the lateral wall of through-hole is provided with two fixed lamella bodies and a slip lamella body, and two fixed lamella bodies and a slip lamella body are the tripod trend, and the arc surface and the through-hole of two fixed lamella bodies are coaxial, and the back of the slip lamella body is provided with a plurality of locking bolt, and T type pedestal has seted up with locking bolt complex screw thread through-hole, and locking bolt orders about the slip lamella body and two fixed lamella body cooperation centre gripping cutter arbor.

2. The three-point locking boring tool holder of claim 1, wherein: the sliding valve body is integrally formed with the T-shaped seat body through the wavy connecting block.

3. The three-point locking boring tool holder of claim 2, wherein: the sliding distance of the sliding valve body is 0.05mm-0.1 mm.

4. The three-point locking boring tool holder of claim 3 wherein: the arc surface of the sliding petal body is equal in diameter to the arc surfaces of the two fixed petal bodies, and the arc surfaces are the same as the outer diameter of the cutter bar.

5. The three-point locking boring tool holder of claim 4, wherein: the fixed flap body and the T-shaped seat body are integrally formed.