Boring cutter for milling machine

Abstract

The utility model relates to the technical field of boring cutters, and discloses a boring cutter for a milling machine, which comprises a screw rod, a fine tuning knob is mounted at the side end of a boring cutter body, a driving gear is fixedly connected to the inner end of the fine tuning knob, the side end of the driving gear is meshed with a linkage gear, the center of the linkage gear is meshed with the screw rod, and the lower end of the screw rod is fixedly connected with a fixing plate. A cutter, a lifting assembly and a structure which is installed in the boring cutter body and used for controlling the fixing plate to move up and down are installed in the fixing plate, through combination of a fine adjustment knob and a lead screw transmission mechanism, precise adjustment of the cutting depth of the cutter is achieved, and the machining precision and the surface quality are improved. According to the device design, cutter blocks of different specifications and types are allowed to be rapidly replaced so as to meet various machining requirements, and the production efficiency and flexibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to boring bar technical field, concretely is a boring bar for milling machine. BACKGROUND

[0002] Milling machine mainly refers to the milling cutter to the workpiece multiple surface processing machine tool, usually with milling cutter rotation movement as the main, workpiece and milling cutter movement is feed movement, can process plane, groove, also can process various curved surface, gear etc., boring bar is one kind of hole processing tool, general is round handle, the most common occasion is processing, reaming, profiling etc., boring bar can be used on boring machine, lathe or milling machine, the traditional boring bar device when adjusting cutting depth, often relies on manual adjustment or simple mechanical structure, difficult to realize accurate control, leading to the machining accuracy is limited, at the same time, the tool and tool block of traditional boring bar device are often fixed and cannot be replaced, or the replacement process is cumbersome, difficult to meet the diversified processing demand, for this purpose, we put forward a boring bar for milling machine. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a boring bar for milling machine, solves the above -mentioned problem.

[0004] In order to realize the above -mentioned purpose, the utility model provides the following technical scheme: a boring bar for milling machine, including boring bar body, the upper end of boring bar body installs support, the lower end of boring bar body installs tool, still includes:

[0005] Lifting assembly, install in the inside of boring bar body, for the structure for controlling fixed plate up and down movement;

[0006] The lifting assembly includes fine adjustment knob, driving gear, linkage gear, lead screw and fixed plate, the side end of boring bar body installs fine adjustment knob, fine adjustment knob is fixedly connected driving gear on the inside one end, the side end of driving gear is engaged connection linkage gear, the center of linkage gear is engaged connection lead screw, the lower end of lead screw is fixedly connected fixed plate, and the inside of fixed plate installs tool;

[0007] The upper end of the tool installs extension plate, and the upper end of the extension plate installs fixed installation limit disc, and the lower end of the tool is provided with a plurality of installation grooves, and the surface of the installation groove is provided with a tool block.

[0008] Preferably, the side end of the extension plate is provided with a half ring clamping block, a spring is arranged at the center of the outer end of the half ring clamping block, the other end of the spring is fixedly connected with the inner wall of the fixed plate, a fixed bolt is arranged at the side end of the spring, one end of the fixed bolt penetrates the surface of the half ring clamping block and is connected with the extension plate, and the other end of the fixed bolt penetrates the surface of the fixed plate and extends to the outside of the fixed plate.

[0009] Preferably, the lower end of the boring tool body is fixedly connected with a positioning ring, and the upper surface of the corresponding support is provided with a positioning groove, and the positioning ring is installed in the interior of the positioning groove.

[0010] Compared with the prior art, the boring tool for milling machine has the following beneficial effects:

[0011] 1. The combination of the fine adjustment knob and the screw rod transmission mechanism realizes accurate adjustment of the cutting depth of the tool, improves the machining precision and surface quality, the device design allows quick replacement of different specifications and types of tool blocks to adapt to various machining requirements, and improves the production efficiency and flexibility.

[0012] 2. The design of the extension plate and the limiting disc enhances the stability of the tool during cutting, reduces the influence of vibration and impact on the machining quality, the introduction of the spring provides buffering and resetting functions for the device, effectively protects the tool and the machine tool from sudden impact damage, and prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a schematic view of the utility model;

[0014] Fig. 2 is a schematic view of the lifting assembly of the utility model;

[0015] Fig. 3 is a schematic view of the side view of the utility model.

[0016] In the drawing: 1, boring tool body; 2, support; 3, tool; 4, fine adjustment knob; 5, driving gear; 6, linkage gear; 7, screw rod; 8, fixed plate; 9, extension plate; 10, limiting disc; 11, installation groove; 12, tool block; 13, half-ring clamping block; 14, spring; 15, fixed bolt; 16, positioning ring; 17, positioning groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-3The application discloses a boring cutter for a milling machine, which comprises a boring cutter body 1, a mounting support 2 arranged at the upper end of the boring cutter body 1, a cutter 3 arranged at the lower end of the boring cutter body 1, a lifting assembly arranged in the boring cutter body 1 and used for controlling the up-down movement of a fixed plate 8, wherein the lifting assembly comprises a fine adjustment knob 4, a driving gear 5, a linkage gear 6, a lead screw 7 and the fixed plate 8, the fine adjustment knob 4 is arranged at the side end of the boring cutter body 1, the fine adjustment knob 4 is fixedly connected with the driving gear 5 at the inner end, the side end of the driving gear 5 is meshingly connected with the linkage gear 6, the centre of the linkage gear 6 is meshingly connected with the lead screw 7, the lower end of the lead screw 7 is fixedly connected with the fixed plate 8, the cutter 3 is arranged in the fixed plate 8, the lead screw 7 and the fixed plate 8 are threadedly connected, so that the rotation of the lead screw can drive the fixed plate to move along the axial direction, the lifting movement of the fixed plate 8 drives the cutter 3 arranged in the fixed plate 8 to move up and down, thereby realizing the adjustment of the cutting depth of the workpiece.

[0019] Further, the upper end of the cutter 3 is arranged with an extension plate 9, the upper end of the extension plate 9 is arranged with a fixed mounting limiting disc 10, the lower end of the cutter 3 is arranged with a plurality of mounting grooves 11, the surface of the mounting grooves 11 is arranged with cutter blocks 12, the extension plate 9, the limiting disc 10 and the cutter 3 are integrated, a half-ring clamping block 13 is arranged at the side of the extension plate 9 to fix water, the limiting disc 10 is arranged at the inner position of the half-ring clamping block 13 to limit the half-ring clamping block 13.

[0020] Further, the side end of the extension plate 9 is arranged with the half-ring clamping block 13, the centre of the outer end of the half-ring clamping block 13 is arranged with a spring 14, the other end of the spring 14 is fixedly connected with the inner wall of the fixed plate 8, the side end of the spring 14 is arranged with a fixed bolt 15, one end of the fixed bolt 15 penetrates through the surface of the half-ring clamping block 13 and is connected with the extension plate 9, the other end of the fixed bolt 15 penetrates through the surface of the fixed plate 8 and extends to the outside of the fixed plate 8, the fixed bolt 15 drives the half-ring clamping block 13 to move synchronously when moving outward or inward, the spring 14 is connected between the half-ring clamping block 13 and the fixed plate 8, provides the buffering and resetting functions for the device, and absorbs part of the impact and vibration.

[0021] Further, the lower end of the boring cutter body 1 is fixedly connected with a positioning ring 16, the upper surface of the corresponding mounting support 2 is arranged with a positioning groove 17, the positioning ring 16 is arranged in the positioning groove 17, the positioning ring 16 is matched with the positioning groove 17 on the mounting support 2, thereby realizing the accurate positioning of the boring cutter body 1. The design ensures the accuracy and stability of the device during the installation process.

[0022] Working principle: when the fine tuning knob 4 is rotated, it will drive the driving gear 5 fixedly connected with it to rotate, the driving gear 5 is engaged with the linkage gear 6, the rotating power is transmitted to the linkage gear 6, the linkage gear 6 is further engaged with the center of the lead screw 7, so that the lead screw 7 generates rotary motion, through the fine adjustment of the fine tuning knob 4, the accurate control of the rotary amount of the lead screw 7 can be realized, so as to control the lifting amplitude of the fixed plate 8 and the tool 3, the rotary motion of the lead screw 7 is converted into the linear lifting motion of the fixed plate 8. This is because the threaded connection between the lead screw 7 and the fixed plate 8 makes the rotation of the lead screw drive the fixed plate to move axially, the lifting motion of the fixed plate 8 drives the tool 3 installed in its interior to move up and down together, so as to realize the adjustment of the cutting depth of the workpiece, when the tool 3 needs to be replaced, the fixed bolt 15 is twisted in the opposite direction, the half ring clamping block 13 is driven outward by the fixed bolt 15, the half ring clamping block 13 loosens the fixing of the extension plate 9 outward, the tool 3 is taken out, the new tool 3 is placed in the previous position, the fixed bolt 15 drives the half ring clamping block 13 to fix the extension plate 9, at the same time, the limiting disc 10 prevents the tool 3 from falling during use, the positioning ring 16 cooperates with the positioning groove 17 on the support 2, the accurate positioning of the boring cutter body 1 is realized, the design ensures the accuracy and stability of the device during installation,

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A boring tool for a milling machine, comprising a boring tool body (1), a support (2) mounted at the upper end of the boring tool body (1), and a tool (3) mounted at the lower end of the boring tool body (1), characterized in that, Also include: Lifting assembly, installed in the inside of boring cutter body (1), for controlling the structure of fixed plate (8) up and down movement; The lifting assembly includes fine adjustment knob (4), drive gear (5), linkage gear (6), lead screw (7) and fixed plate (8), the side end of boring cutter body (1) installs fine adjustment knob (4), fine adjustment knob (4) is fixedly connected with drive gear (5) on the inside one end, the side end of drive gear (5) is engaged with linkage gear (6), the center of linkage gear (6) is engaged with lead screw (7), the lower end of lead screw (7) is fixedly connected with fixed plate (8), and the inside of fixed plate (8) is installed with tool (3); The upper end of the tool (3) is installed with the extension plate (9), and the upper end of the extension plate (9) is installed with the fixed installation limiting disc (10), and the lower end of the tool (3) is installed with a plurality of installation grooves (11), and the surface of the installation groove (11) is installed with the tool block (12).

2. The boring tool according to claim 1, characterized in that: The side end of the extension plate (9) is installed with the half ring clamping block (13), and the spring (14) is installed at the center of the outer one end of the half ring clamping block (13), and the other end of the spring (14) is fixedly connected with the inner wall of the fixed plate (8), and the side end of the spring (14) is installed with the fixed bolt (15), and one end of the fixed bolt (15) penetrates the surface of the half ring clamping block (13) and is connected with the extension plate (9), and the other end of the fixed bolt (15) penetrates the surface of the fixed plate (8) and extends to the outside of the fixed plate (8).

3. The boring tool according to claim 1, wherein: The lower end of the boring cutter body (1) is fixedly connected with the positioning ring (16), and the upper surface of the corresponding support (2) is provided with the positioning groove (17), and the positioning ring (16) is installed in the inside of the positioning groove (17).

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