CN210059837U

CN210059837U - Large-scale drill collar deep hole grooving cutter

Info

Publication number: CN210059837U
Application number: CN201920787046.0U
Authority: CN
Inventors: 邢明喜; 辛佳毅
Original assignee: Taiyuan Tool Factory Co Ltd
Current assignee: Taiyuan Tool Factory Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-02-14
Anticipated expiration: 2029-05-29

Abstract

A deep hole grooving cutter for a large drill collar belongs to the field of machinery and comprises a grooving cutter bar, a positioning guide sleeve, a workpiece clamping chuck and a center frame, wherein the positioning guide sleeve is arranged at the front end of the grooving cutter bar; the center frame is positioned between the longitudinal moving tool rest and the positioning guide sleeve, and the positioning guide sleeve is connected with the workpiece clamping chuck through a bolt. The utility model provides a processing difficult problem of special type product deep hole grooving of export.

Description

Large-scale drill collar deep hole grooving cutter

Technical Field

The utility model belongs to the field of machinery, concretely relates to guide tracked feed grooving cutter arbor of interior grooving of stainless steel deep hole processing.

Background

In the process of processing holes by a deep hole boring machine, deep hole grooving processing is difficult. At present, deep hole grooving processing equipment adopts a complex feed mechanism, the feed mechanism adopts a turbine worm structure, the structure is complex, deep hole and small hole grooving difficulty is high, and efficiency is low.

Disclosure of Invention

In order to solve the difficult point of grooving in the deep hole (at least 4 m), the utility model provides a simple structure, application scope are wide, with low costs a large-scale drill collar deep hole inslot cutting tool device.

A deep hole grooving cutter for a large drill collar is characterized by comprising a grooving cutter head, a cutter bar, a cutter head moving ejector rod, an ejector rod cover plate, a feeding eccentric shaft and a cutter bar front end positioning guide sleeve; a machine tool workpiece clamping chuck and a center frame clamp and position a machining workpiece, a cutter bar guide sleeve is fixed on the chuck body by screws, and a taper shank at the rear end of a grooving cutter bar is connected with a longitudinally moving cutter frame body of a machine tool to realize grooving machining; the grooving cutter bar comprises a bar body, a cutter head is installed at one end of the bar body, a feeding eccentric shaft is installed at the other end of the bar body, a guide rail groove is formed in one side of the bar body in a through-length mode, a guide rail ejector rod is installed in the guide rail groove, and a guide rail cover plate can move front and back through screw fastening to move the guide rail type ejector rod to complete grooving feeding and retracting machining.

The utility model provides a processing difficult problem of export special type product deep hole grooving, this deep hole grooving cutter has created new instrument for deep hole inslot grooving, simple structure, with low costs, raises the efficiency 2-3 times.

Drawings

FIG. 1 is an assembly view of the structure of the present invention;

fig. 2 is a right side view of fig. 1.

FIG. 3 is a view showing a structure of a grooving tool bar;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a left side view of FIG. 3;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 3;

FIG. 7 is a sectional view taken along line H-H of FIG. 3;

FIG. 8 is a cross-sectional view taken along line F-F of FIG. 4;

FIG. 9 is a cross-sectional view taken along line G-G of FIG. 5;

FIG. 10 is a view of the construction of the slitting knife bar body;

FIG. 11 is a top view of FIG. 10;

FIG. 12 is a cross-sectional view taken along line A-A of FIG. 10;

FIG. 13 is a cross-sectional view taken along line B-B of FIG. 10;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 11;

FIG. 15 is a structural view of the slot guide lift bar;

FIG. 16 is a left side view of FIG. 15;

FIG. 17 is a block diagram of a rail cover;

FIG. 18 is a top view of FIG. 17;

FIG. 19 is a left side view of FIG. 17;

FIG. 20 is a structural view of the feed eccentric shaft;

FIG. 21 is a left side view of FIG. 20;

FIG. 22 is a structural view of a pilot disc;

FIG. 23 is an axial cross-sectional view of FIG. 22;

FIG. 24 is a block diagram of the center frame;

FIG. 25 is a block diagram of a cutter head;

FIG. 26 is a top view of FIG. 25;

FIG. 27 is a left side view of FIG. 25;

fig. 28 is a sectional view taken along the line E-E in fig. 25.

In the figure, 1, a machine tool spindle box, 2, a workpiece clamping chuck, 3, a positioning guide sleeve, 4, a processing workpiece, 5, a grooving cutter rod, 6, a center frame, 7, a longitudinal moving cutter frame, 8, a cutter head, 9, a cutter head limiting plate, 10, a connecting end with the machine tool spindle box, 11, a spring, 12, a guide rail cover plate, 13, a square guide rail, 14 and a cutter withdrawing shaft.

Detailed Description

As shown in fig. 1 and 2, the deep hole grooving tool for the large drill collar is characterized by comprising a grooving cutter bar 5, a positioning guide sleeve 3, a workpiece clamping chuck 2 and a center frame 6, wherein the positioning guide sleeve 3 is arranged at the front end of the grooving cutter bar 5, the front end of the grooving cutter bar 5 penetrates through the positioning guide sleeve 3 to be connected with a spindle box 1 of a machine tool, the center frame 6 and a longitudinal moving cutter rest 7 are arranged at the rear end of the grooving cutter bar 5, and a taper shank at the rear end of the grooving cutter bar 5 is connected with a feed frame at the rear end of the machine tool. The center frame 6 is positioned between the longitudinal moving tool rest 7 and the positioning guide sleeve 3, the positioning guide sleeve 3 is connected with the workpiece clamping chuck 2 through a bolt, and the workpiece clamping chuck is connected with a connecting disc of a machine tool through a bolt;

as shown in fig. 3-14, the grooving cutter bar comprises a bar body, a cutter head is installed at one end of the bar body, a feeding eccentric shaft is installed at the other end of the bar body, a guide rail groove is formed in one side of the bar body in a through-length mode, a guide rail ejector rod is installed in the guide rail groove, and the movable ejector rod is fixed through a guide rail cover plate and a screw.

Fig. 15 and 16 show that the front end of the grooving cutter bar is provided with a guide shaft and two milling planes at the rear side of the cutter bar, the front end of the front side plane is provided with a square groove for installing a cutter head, the rear side plane is provided with a guide rail groove and is provided with a guide rail type movable ejector rod, and a guide rail cover plate screw is used for tightly fixing and positioning the movable cutter and the movable cutter, and the movable cutter is pulled back as shown in fig. 3.

A grooving cutter head is arranged in a linear cutting square groove at the front end of the grooving cutter rod, a round hole is machined at the front end of the grooving cutter head 5, a spring is arranged in the round hole, and the spring is blocked by a small limiting plate fastened on the cutter rod, and the inclined plane at the rear end of the cutter head is a 60-degree fillet matched with the movement of the grooving cutter head through the front end a of a top cutter head ejector rod, so that the advance and retreat of the cutter are realized; the rear end of the cutter bar is vertically drilled, an eccentric shaft is arranged in a milling groove, and the cutter feeding and retracting (locked by a locking shaft after the cutter feeding) are realized by rotating a shaft above the eccentric shaft;

as shown in fig. 17, 18 and 19, a hole is drilled in the guide rail cover plate and a screw is installed on the guide rail cover plate, and the guide rail cover plate and the ejector rod are fixed through the screw.

As shown in fig. 20 and 21, one end of the feed eccentric shaft is a square handle, and the other end is a round handle; the eccentric shaft is provided with an eccentric wheel in the middle, and the eccentric wheel is provided with a locking screw.

As shown in fig. 22 and 23, the guide plate is provided with 4 notch grooves.

Fig. 24 shows that the center frame is a facility attached to the machine tool, and is not explained in the present specification.

As shown in fig. 25 to 28, the tool bit includes a tool bit body, the tool bit body is provided with a tool bit retracting return spring, one end of the tool bit is provided with a top rod pushing a tool bit moving inclined plane (for pushing the inclined plane to advance and retract), and the inclination angle of the inclined plane and the tool bar is 75 degrees.

Claims

1. A deep hole grooving cutter for a large drill collar is characterized by comprising a grooving cutter bar, a positioning guide sleeve and a workpiece clamping chuck, wherein the positioning guide sleeve is arranged at the front end of the grooving cutter bar; the center frame is positioned between the longitudinal moving tool rest and the positioning guide sleeve, and the positioning guide sleeve is connected with the workpiece clamping chuck through a bolt;

the grooving cutter bar comprises a bar body, one end of the bar body is provided with a cutter head, the other end of the bar body is provided with a feed eccentric shaft, one side of the bar body is provided with a guide rail groove in a through length mode, a guide rail ejector rod is arranged in the guide rail groove, and the movable ejector rod is fixed through a guide rail cover plate and a screw;

a grooving cutter head is arranged in a linear cutting square groove at the front end of the grooving cutter rod, a round hole is machined at the front end of the grooving cutter head, a spring is arranged in the round hole, and the spring is blocked by a small limiting plate fastened on the cutter rod, and an inclined plane at the rear end of the cutter head is matched with the grooving cutter head to move through a 60-degree fillet at the front end of a top cutter head ejector rod, so that the advance and retreat of the cutter are realized; the rear end of the cutter bar is vertically drilled with a hole, the eccentric shaft is arranged in a milling groove, and the cutter feeding and retracting are realized by rotating the upper shaft of the eccentric shaft.