CN205020833U - But screw compresses tightly unsteady boring cutter of type transposition alloy blade - Google Patents

Abstract

The utility model discloses a screw-pressing type indexable alloy blade floating boring tool, which comprises: an upper cutter body, a lower cutter body, a left machine clamping seat and a right machine clamping tool seat, and the right end surface of the upper cutter body has a right The outer bump, the right end of the upper cutter body also has an adjusting threaded pin shaft, the left end surface of the right machine holder has a groove, the upper part of the right machine holder is also fixed with the upper cutter body by a set screw, the right machine The lower part of the clamping seat also has a through hole extending axially along the adjusting threaded pin shaft, and there is also a blade mounting groove on the right machine clamping seat, and an alloy blade is fixed on the blade mounting groove by a fastening screw; the left machine clamping knife The seat is installed on the left end face of the lower cutter body, and the left machine holder and the right machine holder are center-symmetrical. Through the above method, the structure of the utility model is simple and reasonable, and the discarded floating knife can be used for transformation and reuse; the alloy blade is clamped and replaceable, which reduces the time for grinding the floating knife, saves labor, and improves processing efficiency.

Description

Screw compression type indexable alloy insert floating boring cutter

technical field

The utility model relates to the technical field of cutting tools, in particular to a screw-pressed floating boring tool with indexable alloy blades.

Background technique

Boring tool is a kind of boring tool, generally with round handle, and there are also square tool bars for larger workpieces. The most commonly used occasions are inner hole processing, reaming, profiling, etc., with one or two cutting parts. A tool for roughing, semi-finishing or finishing an existing hole. Boring cutters are divided into floating boring cutters and fixed boring cutters according to whether the blade floats on the boring bar.

The floating boring tool is mainly used for the semi-finishing and finishing machining of the inner hole of the workpiece. As shown in Figure 1, it is the most commonly used floating boring tool structure. For example, when using this kind of floating cutter to process the oil cylinder on a deep hole boring machine, when the batch size of workpieces is more than 10 pieces, in order to reduce the loss of machine tool shutdown, a floating cutter of the same specification generally needs to be reserved. To ensure that the machining will not stop due to the wear of the floating knife, the old floating knife is usually used as a backup after grinding. If the batch of workpieces is more than 20 pieces, it is necessary to arrange a special person to regrind the floating boring tool on the tool grinder in order to ensure the normal processing, and the labor cost is large, which affects the processing efficiency.

In addition, after the traditional floating boring tool has been ground many times, when the hard alloy on the head is ground, the tool body can only be scrapped, which also causes a certain amount of waste. Many manufacturing companies keep a large number of scrapped various models. Floating boring tool.

Utility model content

The main technical problem to be solved by the utility model is to provide a screw-pressed floating boring tool with indexable alloy blades. It can be replaced, which reduces the time for grinding the floating knife, saves labor and improves the processing efficiency.

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is to provide a screw-pressed type indexable alloy blade floating boring tool, including: an upper cutter body, a lower cutter body, a left machine holder and a right machine The tool clamping seat, the upper tool body and the lower tool body are assembled in one body in an adjustable manner;

There is a right outer protrusion on the right end surface of the upper cutter body, and an adjusting threaded pin shaft is also provided on the right end of the upper cutter body, and a right outer protrusion is provided on the left end surface of the right machine holder. groove, the left end face of the right machine holder is matched with the right end face of the upper cutter body, and the upper part of the right machine holder is also fixed together with the upper cutter body by at least one fixing screw, and the right machine The lower part of the clamping seat also has a through hole extending axially along the adjusting threaded pin shaft, and the said right machine clamping seat also has a blade mounting groove, and an alloy blade is fixed on the blade mounting groove by a fastening screw;

There is a left outer protrusion on the left end surface of the lower cutter body, and the left machine holder is installed on the left end surface of the lower cutter body, and the left machine holder and the right machine holder are centrally symmetrical. .

In a preferred embodiment of the present invention, the upper part of the right machine holder is fixed with the upper cutter body by two fixing screws.

In a preferred embodiment of the present invention, the lower part of the left machine holder is fixed with the lower cutter body by two fixing screws.

In a preferred embodiment of the present invention, the lower cutter body has a chute, the upper cutter body includes a slider, and the slider is assembled in the chute and can move along the length of the chute. direction to move.

In a preferred embodiment of the present invention, the upper cutter body is provided with two positioning screw holes, the lower cutter body is provided with two positioning long holes, and the upper cutter body and the lower cutter body are corresponding The positioning screw holes and positioning long holes are fastened and connected by positioning screws.

The utility model has the following beneficial effects:

1. The alloy blade of the utility model adopts a clamping type, and different alloy blades can be selected for replacement according to workpieces with different hardness, which is simple and practical;

2. The utility model can improve the processing efficiency of the boring equipment, reduce the auxiliary time for replacing and grinding the floating knife, and save labor;

3. The structure of the utility model is simple and reasonable, and it is more convenient to transform, and it is convenient to gradually reuse the floating knives that have been discarded or will be discarded, and reduce the production cost;

4. The floating boring tool of the utility model has good chip breaking effect, and the cutting line speed is higher than that of the traditional floating boring tool, which improves the processing efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is the structural representation of floating boring tool in the prior art;

Fig. 2 is a schematic diagram of the assembly structure of the upper cutter body and the lower cutter body in the utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the right view of Fig. 2;

Fig. 5 is the top view of Fig. 2;

Fig. 6 is a schematic structural view of the right machine holder;

Fig. 7 is the right view of Fig. 6;

Fig. 8 is a structural schematic diagram of a screw-pressing type indexable alloy insert floating boring tool of the present invention.

The markings of the components in the attached drawings are as follows: 1. Upper cutter body, 2. Lower cutter body, 3. Left machine holder, 4. Right machine holder, 5. Right outer projection, 6. Adjusting screw pin , 7, groove, 8, fixing screw, 9, left outer bump, 10, chute, 11, slide block, 12, positioning screw hole, 13, positioning long hole, 14, positioning screw, 15, through hole.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 2 to Fig. 8, the utility model embodiment comprises:

A screw-pressed floating boring tool with indexable alloy inserts comprises: an upper cutter body 1 and a lower cutter body 2, and the upper cutter body 1 and the lower cutter body 2 are assembled together in an adjustable manner.

Specifically, the lower cutter body 2 has a chute 10, and the upper cutter body 1 includes a slider 11, the slider 11 is assembled in the chute 10 and can move along the length direction of the chute , the upper cutter body 1 is provided with two positioning screw holes 12, the lower cutter body 2 is provided with two positioning long holes 13, and the upper cutter body 1 and the lower cutter body 2 are located in the corresponding positioning screw holes It is fastened and connected with the positioning long hole by the positioning screw 14. The above are all prior art, and only a brief introduction is made here, and no more details are given here.

The floating boring tool of the present utility model also includes a left machine holder 3 and a right machine holder 4, both of which have the same structure. The right end also has an adjusting screw pin 6, and the left end surface of the right machine holder 4 has a groove 7 matched with the right outer projection 5, and the left end surface of the right machine holder 4 Matched with the right end face of the upper cutter body 1, the top of the right machine holder 4 is also fixed together with the upper cutter body 1 by at least one fixing screw 8, so that there is a firm connection between the right machine holder and the upper cutter body. The unique connection method ensures the strength requirements during processing and the overall performance of the floating boring tool.

The lower part of the right machine holder 4 also has a through hole 15 extending axially along the adjusting threaded pin 6, from which the adjusting threaded pin 6 can be twisted, retaining the length adjustment function of the floating boring tool .

Also have a blade installation groove on the said right machine holder 4, the alloy blade is fixed with a fastening screw on the blade installation groove, the alloy blade adopts the clamping type, and different hardness can be selected according to the processed workpieces of different hardness. Alloy blades are replaced, simple and practical.

The left end surface of the lower cutter body 2 has a left outer projection 9, and the left machine holder 3 is installed on the left end surface of the lower cutter body, and the left machine holder 3 is connected to the right machine holder. Seat 4 is centrally symmetrical.

At present, many related manufacturing enterprises have a large number of scrapped products after the grinding of the floating boring tool cemented carbide cutter head as shown in Figure 1. Turning processing and thread hole processing can cooperate with the left machine holder and the right machine holder to obtain an improved floating boring tool, make full use of scrap products, and reduce production costs.

Preferably, the upper part of the right machine holder 4 is fixed together with the upper cutter body 1 by two fixing screws, and the lower part of the left machine holder 3 is fixed together with the lower cutter body 2 by two fixing screws , to fully ensure the stability of the connection structure.

The utility model has the following beneficial effects:

1. The alloy blade of the utility model adopts a clamping type, and different alloy blades can be selected for replacement according to workpieces with different hardness, which is simple and practical;

2. The utility model can improve the processing efficiency of the boring equipment, reduce the auxiliary time for replacing and grinding the floating knife, and save labor;

3. The structure of the utility model is simple and reasonable, and it is more convenient to transform, and it is convenient to gradually reuse the floating knives that have been discarded or will be discarded, and reduce the production cost;

4. The floating boring tool of the utility model has good chip breaking effect, and the cutting line speed is higher than that of the traditional floating boring tool, which improves the processing efficiency.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (5)

1. the indexable alloy blade floating boring tool of screw in compression type, is characterized in that, comprising: upper knife body, lower knife body, left clamped cutting bit seat and right clamped cutting bit seat, and described upper knife body and lower knife body are assemblied in one with adjustable way;

Described upper knife body right side has right outside projection, described upper knife body right-hand member also has one and regulates screw thread bearing pin, the left side of described right clamped cutting bit seat has a groove matched with described right outside projection, the described right left side of clamped cutting bit seat and the right side of upper knife body match, the top of described right clamped cutting bit seat is also fixed together by least one hold-down screw and upper knife body, the bottom of described right clamped cutting bit seat also has one along regulating the axially extended through hole of screw thread bearing pin, described right clamped cutting bit seat also has blade installation slot, described blade installation slot is fixed with alloy blade by a trip bolt,

The left side of described lower knife body has left outside projection, and described left clamped cutting bit seat is arranged on the left side of described lower knife body, and described left clamped cutting bit seat and right clamped cutting bit seat are centrosymmetric.

2. the indexable alloy blade floating boring tool of screw in compression type according to claim 1, is characterized in that, the top of described right clamped cutting bit seat is fixed together by two hold-down screws and upper knife body.

3. the indexable alloy blade floating boring tool of screw in compression type according to claim 1, is characterized in that, the bottom of described left clamped cutting bit seat is fixed together by two hold-down screws and lower knife body.

4. the indexable alloy blade floating boring tool of screw in compression type according to claim 1, it is characterized in that, described lower knife body has a chute, described upper knife body comprises a slide block, and described slide block to be assemblied in described chute and can to move along track length direction.

5. the indexable alloy blade floating boring tool of screw in compression type according to claim 4, it is characterized in that, described upper knife body is provided with two positioning screw holes, described lower knife body is provided with two location elongated holes, and described upper knife body and lower knife body are fastenedly connected by dog screw with elongated hole place, location at the positioning screw hole of correspondence.