Inverted type drilling machine and operating method for machining fine drill holes

An operation method and an inverted technology, which is applied to the parts of boring machine/drilling machine, boring/drilling, metal processing equipment, etc., can solve the problem of drilling deviation due to the gravity of the drill bit itself, large energy loss of equipment and equipment, and processing accuracy. Poor and other problems, to achieve the effect of reducing the occupied area, saving energy, and reducing the cost of processing and manufacturing

Inactive Publication Date: 2016-11-09
黄大勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the gun drill cannot overcome the drilling deviation due to the drill bit's own gravity during the drilling process, resulting in poor processing accuracy and large energy consumption of the device, the invention proposes an inverted drilling machine and an operation for processing fine drilling. method

Method used

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  • Inverted type drilling machine and operating method for machining fine drill holes

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Effect test

Embodiment 1

[0030] An operation method for fine drilling with an inverted drilling machine, the steps of the operation method are:

[0031] (1) Install the drill upside down on the drill box 5, and adjust the vertical angle of the drill to 90°;

[0032] (2) Put the workpiece 1 from bottom to top into the guide sleeve 2 fixed on the feed pallet 3, adjust the position of the workpiece 1, so that the center line of the processed hole coincides with the center axis of the drill, and the two The coincidence error of the center line is not greater than 2.0mm;

[0033] (3) When the power is turned on, the drill box 5 drives the drill bit 6 to rotate, so that the rotation speed of the drill bit 6 reaches 300r / min, and the cutting oil is passed into the drill bit 6 through the drill box 5, and the flow rate of the cutting oil is 50ml / s. The workpiece 1 is moved downwards driven by the feed pallet 3, and the feed rate is 0.8mm / r until the feeding movement of drilling is completed; the workpiece is...

Embodiment 2

[0038] An operation method for fine drilling with an inverted drilling machine, the steps of the operation method are:

[0039] (1) Install the drill upside down on the drill box 5, and adjust the vertical angle of the drill to 90°;

[0040] (2) Put the workpiece 1 from bottom to top into the guide sleeve 2 fixed on the feed pallet 3, adjust the position of the workpiece 1, so that the center line of the processed hole coincides with the center axis of the drill, and the two The coincidence error of the center line is not greater than 2.0mm;

[0041](3) Power on, the drill rod box 5 drives the drill bit 6 to rotate, so that the rotation speed of the drill bit 6 reaches 400r / min, the cutting oil is passed into the drill bit 6 through the drill rod box 5, and the flow rate of the cutting oil is 70ml / s. The workpiece 1 is moved downwards driven by the feed pallet 3, and the feed rate is 1.2mm / r until the feeding movement of drilling is completed; the workpiece is returned to the...

Embodiment 3

[0046] An operation method for fine drilling with an inverted drilling machine, the steps of the operation method are:

[0047] (1) Install the drill upside down on the drill box 5, and adjust the vertical angle of the drill to 90°;

[0048] (2) Put the workpiece 1 from bottom to top into the guide sleeve 2 fixed on the feed pallet 3, adjust the position of the workpiece 1, so that the center line of the processed hole coincides with the center axis of the drill, and the two The coincidence error of the center line is not greater than 2.0mm;

[0049] (3) Power on, the drill rod box 5 drives the drill bit 6 to rotate, so that the rotation speed of the drill bit 6 reaches 350r / min, the cutting oil is passed into the drill bit 6 through the drill rod box 5, and the flow rate of the cutting oil is 60ml / s. The workpiece 1 is moved downwards driven by the feed pallet 3, and the feed rate is 1.0mm / r until the feeding movement of drilling is completed; the workpiece is returned to th...

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Abstract

The invention relates to the field of machining devices, in particular to an inverted type drilling machine and an operating method for machining fine drill holes. The inverted type drilling machine comprises a base, a stand column, a feed supporting plate, a guide sleeve, a drill rod box and a drilling tool. A cooling hole of the drilling tool is a through hole. The cooling hole of the drilling tool and an inner hole of the drill rod box are located on the same center line during installation. A motor used for driving the drill rod box to rotate is arranged in the base. The inverted type drilling machine and the operating method for machining fine drill holes have the beneficial effects that the drilling tool is perpendicularly installed on the drill rod box, the direction of the gravity of the drilling tool coincides with the direction of a drill hole, the situation that deflection of the drill hole is caused under the effect of the gravity of a drill bit is avoided, and the machining precision can be improved easily; and the drilling tool is perpendicularly installed on the drill rod box, scrap iron generated in the drilling process can automatically fall to be discharged from a V-shaped groove of the drill bit under the effect of self weight, the requirements for the oil supply pressure and flow of a cooling system are lowered correspondingly, heat dissipation in the drilling process is facilitated, and energy can be saved easily.

Description

technical field [0001] The invention relates to the field of mechanical processing devices, in particular to an inverted drilling machine and an operation method for processing fine drilling. Background technique [0002] At present, the layout method of gun drilling in my country is usually a horizontal layout. The gun drill cannot overcome the gravity of the drill bit during the drilling process, which will cause the drilling to deviate and cause poor processing accuracy; in addition, the chip removal space of the drill itself Limited, in order to avoid chip blocking, the cooling system must have the function of high pressure and large flow, resulting in a large energy loss of the device. The processing of deep holes generally adopts graded drilling, which requires uninterrupted tool replacement, which is time-consuming, laborious, and troublesome; in addition, the deeper the graded drill is drilled, the greater the radial force component will be, and the greater the swing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B39/00B23B35/00B23B47/00
CPCB23B39/00B23B35/00B23B47/00
Inventor 黄大勇
Owner 黄大勇
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