CN213496768U - Cutting tool for numerically controlled milling machine - Google Patents

Abstract

The utility model discloses a cutting tool for a numerical control milling machine, which comprises a tool handle, a connecting piece, a fixing screw, a fixing piece, a tool rest, a tool bit, a fastening main shaft and a cutting mechanism, wherein the outer wall of the top end of the tool handle is sleeved with the connecting piece, the outer wall of the connecting piece is provided with the fixing screw, the top end of the connecting piece is fixedly provided with the fixing piece, the top end of the fixing piece is fixedly provided with the tool rest, the center of the top end of the tool rest is fixedly provided with the fastening main shaft, and the tool bit is fixedly arranged along the tool rest by the action of the connecting piece and the fixing piece, the fastening main shaft is arranged along the middle shaft of the tool rest, the tool bit is fixedly fixed along the tool rest by the combined action of the tool rest and the fastening main shaft, the vibration which is possibly generated in the milling process, the machining precision is improved, and the service life of the cutter is prolonged.

Description

Cutting tool for numerically controlled milling machine

Technical Field

The utility model relates to a cutting tool, in particular to cutting tool that numerically controlled fraise machine used.

Background

The development of scientific technology and the rise and continuous maturity of world advanced manufacturing technology put forward higher requirements for numerical control machining technology, and the numerical control milling machine is an automatic machining device developed on the basis of a common milling machine, the machining processes of the two automatic machining devices are basically the same, the structures of the two automatic machining devices are similar, and the numerical control milling machine is divided into two types, namely a non-tool magazine type and a tool magazine type. Among them, the numerically controlled milling machine with a tool magazine is also called a machining center, and the cutting tool for the numerically controlled milling machine is a rotary tool having one or more tool teeth for milling, and each tool tooth cuts off the allowance of a workpiece in sequence and intermittently during operation, and generally includes accessories such as a tool bar and a tool shank in addition to a cutting blade.

The existing partial cutting tools have some inconvenience when in use, some tools with handles transmit torsional moment by means of friction force generated when a milling machine clamping part and a tool handle are clamped during cutting, and because a small gap exists between a tool bit and a tool rest, the tool has the possibility of vibration in the machining process, the vibration can cause uneven tool-cutting amount of a circumferential edge of the tool, and the cutting and expansion amount is increased compared with an original fixed value, so that the machining precision and the service life of the tool are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutting tool that numerically controlled fraise machine was used to solve the problem that brings forward among the above-mentioned background art because the cutter is connected not closely to lead to and is produced the vibration in the use and influence machining precision and cutter life.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cutting tool that numerically controlled fraise machine used, includes handle of a knife, connecting piece, set screw, mounting, knife rest, tool bit, fastening main shaft and cutting mechanism, handle of a knife top outer wall cover is equipped with the connecting piece, the connecting piece outer wall is equipped with set screw, connecting piece top fixed mounting has the mounting, mounting top fixed mounting has the tool bit, tool rest top center fixed mounting fastening main shaft, there is tool rest top fixed mounting to have the tool bit, the tool bit runs through fixed connection with the fastening main shaft, tool bit a week outer fringe is equipped with a plurality of tooth-shaped pieces, and is a plurality of tooth-shaped piece one side all is equipped with cutting mechanism, and is a plurality of cutting mechanism all includes cutting blade and connecting screw, and is a plurality of the cutting blade all with tooth.

As an optimal technical scheme of the utility model, handle of a knife top passes through buckle structure closely fixed connection with the connecting piece, the connecting piece passes through fixed connection with the mounting through set screw.

As a preferred technical scheme of the utility model, fastening main shaft vertical fixation is in the positive center pin of tool bit, fastening main shaft height equals with the tool bit height.

As a preferred technical scheme of the utility model, the tool bit diameter is less than the knife rest diameter.

As a preferred technical scheme of the utility model, it is a plurality of tooth profile block size, shape and interval are all unanimous completely, and are a plurality of the cutting blade all is located tooth profile block vertical edge top, cutting blade top one side all with tool bit top edge parallel and level.

As an optimized technical scheme of the utility model, it is a plurality of the cutting blade middle part all is equipped with the screw hole, and is a plurality of the cutting blade all runs through fixed connection through connecting screw and profile of tooth piece one side.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a cutting tool that numerically controlled fraise machine used, through the effect of connecting piece and mounting, with handle of a knife and knife rest fixed connection, set up the fastening main shaft along knife rest axis department, through knife rest and fastening main shaft combined action, firmly fix the tool bit along the knife rest, through running through the tool bit through the fastening main shaft and having restricted the vibration that the tool bit probably produced at the milling process, avoided the cutting blade to eat the inhomogeneous problem that leads to cutting the increase of expansion volume at the during operation, improved machining precision and cutter life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is an enlarged schematic view of the tooth-shaped block of the present invention.

In the figure: 1. a knife handle; 2. a connecting member; 3. a set screw; 4. a fixing member; 5. a tool holder; 6. a cutter head; 7. fastening the main shaft; 8. a cutting mechanism; 81. a cutting insert; 82. and connecting screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a cutting tool for a numerically controlled milling machine, which comprises a tool shank 1, a connecting piece 2, a fixing screw 3 and a fixing piece 4, knife rest 5, tool bit 6, fastening main shaft 7 and cutting mechanism 8, 1 top outer wall cover of handle of a knife is equipped with connecting piece 2, 2 outer walls of connecting piece are equipped with set screw 3, 2 top fixed mounting of connecting piece have mounting 4, 4 top fixed mounting of mounting have tool bit 5, 5 top center fixed mounting fastening main shaft 7 of tool bit, there is 5 top fixed mounting of tool bit 6 of tool bit, tool bit 6 runs through fixed connection with fastening main shaft 7, 6 a week outer fringe of tool bit is equipped with a plurality of profile of tooth pieces, a plurality of profile of tooth piece one side all are equipped with cutting mechanism 8, a plurality of cutting mechanism 8 all include cutting blade 81 and connecting screw 82, a plurality of cutting blade 81 all with profile of tooth piece one side fixed connection.

Wherein, 1 top of handle of a knife passes through the inseparable fixed connection of buckle structure with connecting piece 2, and connecting piece 2 runs through fixed connection through set screw 3 with mounting 4 for handle of a knife 1 with through connecting piece 2 with mounting 4 firm connection.

The fastening main shaft 7 is vertically fixed on a positive center shaft of the tool bit 6, the height of the fastening main shaft 7 is equal to that of the tool bit 6, so that the fastening main shaft 7 is stably connected with the tool bit 6, and the tool bit 6 is limited to move through the fastening main shaft 7.

Wherein, the diameter of the tool bit 6 is smaller than that of the tool rest 5, so that the tool bit 6 is stably connected with the tool rest 5, and meanwhile, the tool bit 6 is prevented from protruding to influence the milling work.

The sizes, the shapes and the intervals of the plurality of tooth-shaped blocks are completely consistent, the plurality of cutting blades 81 are all positioned at the top ends of the vertical edges of the tooth-shaped blocks, and one sides of the top ends of the cutting blades 81 are all flush with the edge of the top end of the cutter head 6, so that the cutting blades 81 can work conveniently.

The middle parts of the cutting blades 81 are provided with threaded holes, and the cutting blades 81 are fixedly connected with one side of the tooth-shaped block through the connecting screws 82, so that the cutting blades 81 can be conveniently used and maintained.

The working principle is as follows:

through handle of a knife 1 with cutter and numerically controlled fraise machine clamping part fixed connection, in operation, the cutter rotates along the central axis, handle of a knife 1 passes through connecting piece 2 and fixing piece 4 fixed connection, 4 tops of fixing piece are fixed with knife rest 5, knife rest 5 center is equipped with fastening main shaft 7, firmly fix tool bit 6 through knife rest 5 and fastening main shaft 7, avoid tool bit 6 to cause the deviation owing to the vibration at the milling process, tool bit 6 edge is equipped with a plurality of profile of tooth pieces, pass through connecting screw 82 fixed mounting along profile of tooth piece edge and have a plurality of cutting blades 81, realize milling through cutting blade 81 when the cutter is rotatory.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A cutting tool for a numerical control milling machine comprises a tool handle (1), a connecting piece (2), a fixing screw (3), a fixing piece (4), a tool rest (5), a tool bit (6), a fastening main shaft (7) and a cutting mechanism (8), and is characterized in that the connecting piece (2) is sleeved on the outer wall of the top end of the tool handle (1), the fixing screw (3) is arranged on the outer wall of the connecting piece (2), the fixing piece (4) is fixedly arranged on the top end of the connecting piece (2), the tool rest (5) is fixedly arranged on the top end of the fixing piece (4), the fastening main shaft (7) is fixedly arranged in the center of the top end of the tool rest (5), the tool bit (6) is fixedly arranged on the top end of the tool rest (5), the tool bit (6) is fixedly connected with the fastening main shaft (7) in a penetrating manner, a plurality, the cutting mechanisms (8) comprise cutting blades (81) and connecting screws (82), the cutting blades (81) are fixedly connected with one side of the tooth-shaped block, and the connecting screws (82) are arranged in the middle of the cutting blades (81).

2. A cutting tool for a numerically controlled milling machine according to claim 1, wherein: the tool handle is characterized in that the top end of the tool handle (1) is tightly and fixedly connected with the connecting piece (2) through a buckle structure, and the connecting piece (2) is fixedly connected with the fixing piece (4) through a fixing screw (3).

3. A cutting tool for a numerically controlled milling machine according to claim 1, wherein: the fastening main shaft (7) is vertically fixed on a positive central shaft of the tool bit (6), and the height of the fastening main shaft (7) is equal to that of the tool bit (6).

4. A cutting tool for a numerically controlled milling machine according to claim 1, wherein: the diameter of the tool bit (6) is smaller than that of the tool rest (5).

5. A cutting tool for a numerically controlled milling machine according to claim 1, wherein: the sizes, the shapes and the intervals of the plurality of tooth-shaped blocks are completely consistent, the plurality of cutting blades (81) are all positioned at the top ends of the vertical edges of the tooth-shaped blocks, and one side of the top ends of the cutting blades (81) is flush with the edge of the top end of the cutter head (6).

6. A cutting tool for a numerically controlled milling machine according to claim 1, wherein: threaded holes are formed in the middle of the cutting blades (81), and the cutting blades (81) are fixedly connected with one side of the tooth-shaped block in a penetrating mode through connecting screws (82).

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