CN203853599U - Hole machining tool - Google Patents

Abstract

The utility model discloses a tool for hole machining, which comprises a tool holder, in which a cutter bar that can slide horizontally is installed, and the cutter bar is positioned by a clamping screw of the tool bar, and the cutter head is fixed on the end of the tool bar, and is passed through the knife Tighten the screw on the top of the head for positioning, and adjust the distance between the cutter head and the positioning shaft by sliding the knife rod, so it is suitable for cutting circles with different diameters. The tool handle is Morse taper handle, which is easy to clamp. The positioning shaft is inserted in the pre-drilled center hole to avoid the swing of the cutter bar and ensure the stability of cutting. The utility model has the advantages of accurate processing size, fast processing speed, simple structure and convenient use.

Description

A hole machining tool

technical field

The utility model relates to a hole processing tool.

Background technique

After the welding of the physical box is completed, a large hole needs to be processed on a certain surface. One way is to use a hole reamer. There are many types of reamers with different diameters, and the larger the diameter, the more difficult it is to process. The first method is to drill small holes, that is, to drill small holes first, and then use a file to process large holes. This processing method is labor-intensive and time-consuming, and the processing accuracy is low, so it is not practical.

Utility model content

The technical problem to be solved by the utility model is to provide a hole machining tool with convenient clamping, adjustable diameter and high machining precision aiming at the above defects.

In order to solve the above-mentioned technical problems, the utility model is characterized in that it includes a knife holder, a knife rod that can slide horizontally is installed in the knife holder, a cutter head is installed on the outer end of the knife rod, and a knife head is installed on the outer end of the knife rod. A knife head fixing device corresponding to the knife head is provided, a knife bar fixing device corresponding to the knife bar is provided on the said knife rest, a knife handle is installed on the upper middle part of the said knife rest, and a knife handle is installed on the lower part of the said knife rest. The positioning axis corresponding to the tool holder axis.

One end side of the knife rod is provided with a knife head positioning hole capable of accommodating the knife head.

The cutter head fixing device includes a cutter head fixing screw hole which is arranged on the outer end of the cutter bar and communicates with the cutter head positioning hole. The cutter head fixing screw hole is screwed with a cutter head tightening screw matched with the cutter head.

A through hole through which the knife rod can pass is arranged transversely in the middle part of the knife holder.

The knife rod fixing device includes two knife rod fixing screw holes symmetrically arranged on the side of the knife holder and communicating with the through hole, the side of the knife rod is provided with a strip groove corresponding to the knife rod fixing screw hole, so Said knife bar fixing screw hole is screwed with a knife bar jacking screw matched with the strip groove.

The centerline of the knife handle and the centerline of the positioning shaft are on the same axis.

The cutter head is arranged parallel to the handle of a knife.

Compared with the prior art, the utility model has the following advantages: the tool bar is horizontally slidably connected to the tool holder, and positioned by the tool bar tightening screw, and the tool head is fixed on the end of the tool bar, and is positioned by the tool head tightening screw. The distance between the cutter head and the positioning shaft is adjusted by sliding the knife rod, so it is suitable for cutting circles with different diameters; the tool handle is a Morse taper handle, which is convenient for clamping; the lower part of the tool holder is equipped with a positioning shaft, and the positioning shaft is inserted in the In the pre-drilled center hole, the swing of the cutter rod is avoided, and the stability of cutting is ensured. The utility model has the advantages of accurate processing size, fast processing speed, simple structure and convenient use.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an exploded view of the utility model.

Detailed ways

With reference to the accompanying drawings, the hole processing tool includes a knife holder 1, a tool bar 2 that can slide horizontally is installed in the tool holder 1, and a through hole for the tool bar 2 to pass is horizontally provided in the middle of the tool post 1, and the tool bar 2 slides connected in the through-hole. The knife holder 1 is provided with a knife holder fixing device corresponding to the knife holder 2. The cutter holder fixing device includes two knife holder fixing screw holes 8 symmetrically arranged on the side of the knife holder 1 and communicating with the through holes. One side of the knife holder 2 There is a bar-shaped groove 9 corresponding to the knife bar fixing screw hole 8, that is, the knife bar fixing bolt 8 is vertically arranged with the bar-shaped groove 9, and the opposite side of the knife bar 1 is an arc that matches the through hole. It is convenient for aligning the tool holder 2. The knife bar fixing screw hole 8 is screwed with the knife bar tightening screw 10 that matches the strip groove 9. After adjusting the position of the knife bar 2, the knife bar tightening screw 10 is tightened against the bar groove 9, thereby fixing the Arbor 2. The outer end of cutter bar 2 is equipped with cutter head 3, and the outer end of cutter bar 2 is provided with the cutter head positioning hole that can accommodate cutter head 3 in the present embodiment, and the outer end of cutter bar 2 is provided with and cutter head 3 corresponding The cutter head fixing device, the cutter head fixing device comprises a cutter head fixing screw hole 7 which is arranged on the top of the cutter bar 2 and communicates with the cutter head positioning hole, and the cutter head fixing screw hole 7 is screwed with a cutter head top tight which cooperates with the cutter head 3. Screw 6, the cutter head tightening screw 6 is consistent with the radial direction of the cutter bar 2. Install the cutter head 3 into the positioning hole of the cutter head, after adjusting the position of the cutter head 3, tighten and fix the cutter head 3 by the cutter head tightening screw 6 . A knife handle 4 is installed on the upper middle part of the tool holder 1. In this embodiment, the knife handle 4 is a Morse taper handle, and the knife handle 4 is matched with a drilling machine. The Morse taper is an international standard of taper, which is used for static fit to accurately locate. The taper is very small, using the principle of friction, a certain torque can be transmitted, and because of the taper fit, it can be easily disassembled. The lower part of the knife holder 1 is provided with a positioning shaft 5 corresponding to the knife handle 4. In this embodiment, the centerline of the knife handle 4 and the centerline of the positioning shaft 5 are on the same axis to ensure the stability of rotation. The cutter head 3 is arranged in parallel with the handle 4, so as to ensure the accuracy of cutting.

The utility model is used in this way: first drill a through hole with a diameter of 10mm in the center of the part to be cut with a drill bit, install the cutter head 3 in the cutter head positioning hole, and fix it by the cutter head tightening screw 6, loosen Tighten the screw 10 on the cutter bar, use a vernier caliper to determine the distance between the positioning axis 5 and the cutter head 3, and then subtract 5mm to get the radius of the cutting circle. Insert it in the central hole with a diameter of 10mm, cut at a slow speed at 60r/min, with a feed rate of 0.1mm/r.

The utility model is not limited to the above-mentioned specific embodiments, and those skilled in the art can make some changes and modifications without departing from the spirit and scope of the utility model. The protection scope of the utility model should be based on the claims of the utility model.

Claims (7)

1. an aperture knife tool, it is characterized in that: comprise knife rest (1), the knife bar (2) that can laterally slide is installed in described knife rest (1), the outer end of described knife bar (2) is provided with cutter head (3), the outer end of described knife bar (2) is provided with the cutting tool fastener corresponding with cutter head (3), described knife rest (1) is provided with the knife bar fixture corresponding with knife bar (2), the upper middle part of described knife rest (1) is provided with handle of a knife (4), and the bottom of described knife rest (1) is provided with and the axial corresponding locating shaft (5) of handle of a knife (4).

2. aperture knife tool according to claim 1, is characterized in that: one end sidepiece of described knife bar (2) is provided with the cutter head locating hole that can hold cutter head (3).

3. aperture knife tool according to claim 2, it is characterized in that: described cutting tool fastener comprises the cutter head fixing threaded hole (7) that is arranged on knife bar (2) outer end and is communicated with cutter head locating hole, in described cutter head fixing threaded hole (7), be bolted with the cutter head coordinating with cutter head (3) and hold out against screw (6).

4. aperture knife tool according to claim 1, is characterized in that: the middle part of described knife rest (1) is horizontally arranged with the through hole that can supply knife bar (2) to pass.

5. aperture knife tool according to claim 4, it is characterized in that: described knife bar fixture comprises two the knife bar fixing threaded holes (8) that are symmetricly set on knife rest (1) side and are communicated with through hole, the sidepiece of described knife bar (1) is provided with the strip groove (9) corresponding with knife bar fixing threaded hole (8), is bolted with the knife bar coordinating with strip groove (9) and holds out against screw (10) in described knife bar fixing threaded hole (8).

6. aperture knife tool according to claim 1, is characterized in that: the center line of the center line of described handle of a knife (4) and locating shaft (5) is on same axis.

7. aperture knife tool according to claim 1, is characterized in that: described cutter head (3) be arranged in parallel with handle of a knife (4).