CN211638353U

CN211638353U - Boring cutter combination device for numerical control machine tool

Info

Publication number: CN211638353U
Application number: CN202020027648.9U
Authority: CN
Inventors: 王高书
Original assignee: Kunshan Hongtaibo Cnc Tool Co ltd
Current assignee: Kunshan Hongtaibo Cnc Tool Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-10-09
Anticipated expiration: 2030-01-07

Abstract

The application relates to a boring cutter combination device for a numerical control machine tool, which comprises a fixing mechanism and a cutter detachably connected with the fixing mechanism, wherein the cutter comprises a cutter bar butted with the fixing mechanism and two boring blades connected with the cutter bar, and each boring blade can do linear motion relative to the cutter bar; the fixing mechanism is provided with a groove, a protrusion is arranged in the groove, a notch clamped with the protrusion and a fastening mechanism which is sleeved on the cutter bar and is in threaded connection with the cutter bar to fix the cutter bar and the fixing mechanism are arranged on the cutter bar. The fixing mechanism is provided with the groove, the groove is internally provided with the bulge, the cutter is provided with the groove clamped with the bulge, and the fastening mechanism is matched for fastening and connecting the cutter and the fixing mechanism, so that the result that the machining precision is not high due to the fact that the cutter is loosened in the fixing mechanism is prevented; the fixing mechanism and the cutter are easy to disassemble; meanwhile, the cutter comprises two boring blades, so that the machining of two workpieces can be completed simultaneously, the operation frequency of the boring machine is reduced, and the machining efficiency is improved.

Description

Boring cutter combination device for numerical control machine tool

Technical Field

The utility model relates to a boring cutter composite set for digit control machine tool belongs to machining cutter technical field.

Background

The boring cutter is one of boring cutters, generally a round handle, the most common occasion is inner hole machining, the precision requirement of a boring machine for machining holes is high, a cutter bar is generally adopted for rough machining of the holes, then a fine cutter bar or a fine boring cutter with adjustable size is used for boring the holes, the larger the machined hole diameter is, the larger the diameter of the fine cutter bar or the fine boring cutter is, the cutter weight is large, the cutter replacement difficulty is increased, and the machining efficiency is low. In the prior art, a plurality of thread sleeving ways are adopted to adjust the blade holder for machining, the structure has poor and unstable balance capability and higher manufacturing cost, and the blade is difficult to replace even if damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boring cutter composite set for digit control machine tool, its balancing capacity is strong, and difficult not hard up and easy the change.

In order to achieve the above purpose, the utility model provides a following technical scheme: a boring cutter combination device for a numerical control machine tool comprises a fixing mechanism and a cutter detachably connected with the fixing mechanism, wherein the cutter comprises a cutter bar butted with the fixing mechanism and two boring cutter blades connected with the cutter bar, and each boring cutter blade can linearly move relative to the cutter bar; the fixing mechanism is provided with a groove, a protrusion is arranged in the groove, a notch clamped with the protrusion and a fastening mechanism sleeved on the cutter bar and in threaded connection with the cutter bar to fix the cutter bar with the fixing mechanism are arranged on the cutter bar.

Further, the groove is provided with a groove bottom and a groove wall connected with the groove bottom, and the protrusion is arranged at the position, close to the groove bottom, of the groove wall.

Furthermore, the fastening mechanism comprises a connecting piece in threaded connection with the groove wall and a skirt edge which is connected with the connecting piece and used for being abutted against the fixing mechanism.

Furthermore, a first limiting rack is arranged on one side of the cutter bar, and a second limiting rack meshed with the first limiting rack is arranged on each boring cutter blade.

Furthermore, the first limiting rack and the second limiting rack both comprise a plurality of tooth bodies, and the cross section of each tooth body is a sawtooth strip.

Further, each boring blade is connected to the shank by a fastener.

Further, the boring cutter combination device for the numerical control machine tool further comprises a belleville spring arranged between the boring blade and a fastener or between the cutter bar and the fastener.

The beneficial effects of the utility model reside in that: the fixing mechanism is provided with the groove, the groove is internally provided with the bulge, the cutter is provided with the groove clamped with the bulge, and the fastening mechanism is matched for fastening and connecting the cutter and the fixing mechanism, so that the result that the machining precision is not high due to the fact that the cutter is loosened in the fixing mechanism is prevented; the fixing mechanism and the cutter are easy to disassemble;

the boring cutter comprises a cutter bar, a first limiting rack and a second limiting rack, wherein the first limiting rack is arranged on the cutter bar, and the second limiting rack is meshed with the first limiting rack and is arranged on each boring cutter, so that the friction force between the boring cutter and the cutter bar is increased, and the boring cutter is further limited to move.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is the structure schematic diagram of the boring cutter combination device for the numerical control machine tool of the utility model.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. In the description of the present invention, the axis direction is the same as the height direction.

Referring to fig. 1, a boring cutter assembly for a numerical control machine tool in a preferred embodiment of the present application includes a fixing mechanism 1 and a cutter 2 detachably connected to the fixing mechanism 1, in this embodiment, the fixing mechanism 1 is configured to interface with a machine tool, and may be a clamp, a collet, or the like, which is not particularly limited herein, depending on the actual situation. The cutter 2 comprises a cutter rod 21 butted with the fixing mechanism 1 and two boring blades 22 connected with the cutter rod 21, and each boring blade 22 can do linear motion relative to the cutter rod 21.

The fixing mechanism 1 is provided with a groove 11, a protrusion 12 is arranged in the groove 11, a notch 25 clamped by the protrusion 12 and a fastening mechanism 3 sleeved on the cutter bar 21 and in threaded connection with the cutter bar 21 to fix the cutter bar 21 and the fixing mechanism 1 are arranged on the cutter bar 21. The groove 11 has a groove bottom 112 and a groove wall 111 connected to the groove bottom 112, and the protrusion 12 is disposed at a position of the groove wall 111 close to the groove bottom 112. Correspondingly, the notch 25 is arranged at the upper end of the cutter bar 21 in the height direction of the boring cutter combined device for the numerical control machine tool.

The fastening mechanism 3 includes a connecting member 32 screwed to the slot wall 111 and a skirt 31 connected to the connecting member 32 and configured to abut against the fixing mechanism 1, and the connecting member 32 is engaged with the cutter bar 21. It is noted that the sum of the widths of the connecting member 32 and the knife bar 21 is equal to the width of the groove 11, so that the connecting member 32 connects the knife bar 21 and the fixing mechanism 1 more tightly, and the length of the connecting member 32 is smaller than the depth of the groove 11. The connection process between the cutter bar 21 and the fixing mechanism 1 is as follows: one end of the cutter bar 21, which is provided with the notch 25, extends into the groove 11 until the notch 25 is clamped with the protrusion 12, and then the fastening mechanism 3 is rotated to enable the connecting piece 32 to be in threaded connection with the groove wall 111 until the skirt 31 abuts against the fixing mechanism 1.

A first limiting rack 23 is arranged on one side of the cutter bar 21, a second limiting rack 24 meshed with the first limiting rack 23 is arranged on each boring blade 22, and the length direction of the first limiting rack 23 is consistent with the moving direction of the boring blade 22. The first limiting rack 23 and the second limiting rack 24 both comprise a plurality of tooth bodies, and the cross section of each tooth body is a sawtooth strip. Indeed, in other embodiments, the cross-sectional shape of each tooth body may be other, and is not limited specifically herein, as the case may be. Each boring blade 22 is connected with the cutter bar 21 through a fastening member 4, and the fastening member 4 is a fastening bolt or the like, which is not particularly limited and depends on the actual situation. The boring cutter combination device for the numerical control machine tool further comprises a belleville spring arranged between the boring blade 22 and the fastening piece 4 or between the cutter bar 21 and the fastening piece 4, and the belleville spring is used for preventing looseness.

In summary, the following steps: the fixing mechanism 1 is provided with the groove 11, the groove 11 is internally provided with the bulge 12, the cutter 2 is provided with the groove 11 clamped with the bulge 12, and the fastening mechanism 3 for fastening and connecting the cutter 2 and the fixing mechanism 1 is matched, so that the result that the machining precision is not high due to the loosening of the cutter 2 in the fixing mechanism 1 is prevented; by arranging the first limiting rack 23 on the cutter bar 21 and arranging the second limiting rack 24 meshed with the first limiting rack 23 on each boring blade 22, the friction force between the boring blade 22 and the cutter bar 21 is increased, and the boring blade 22 is further limited to move.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The boring cutter combination device for the numerical control machine tool is characterized by comprising a fixing mechanism and a cutter detachably connected with the fixing mechanism, wherein the cutter comprises a cutter bar butted with the fixing mechanism and two boring cutter blades connected with the cutter bar, and each boring cutter blade can linearly move relative to the cutter bar; the fixing mechanism is provided with a groove, a protrusion is arranged in the groove, a notch clamped with the protrusion and a fastening mechanism sleeved on the cutter bar and in threaded connection with the cutter bar to fix the cutter bar with the fixing mechanism are arranged on the cutter bar.

2. The boring tool assembly for a numerical control machine tool according to claim 1, wherein the groove has a groove bottom and a groove wall connected to the groove bottom, and the protrusion is provided at a position of the groove wall close to the groove bottom.

3. The boring tool assembly for a numerical control machine tool according to claim 2, wherein the fastening mechanism comprises a connecting member threadedly coupled to the groove wall and a skirt coupled to the connecting member and adapted to abut against the fixing mechanism.

4. The boring cutter assembly for a numerical control machine tool according to claim 1, wherein a first limit rack is provided at one side of the cutter bar, and a second limit rack engaged with the first limit rack is provided at each of the boring cutters.

5. The boring cutter assembly for the numerical control machine tool according to claim 4, wherein the first limit rack and the second limit rack each comprise a plurality of tooth bodies, and each of the tooth bodies has a cross-sectional shape of a sawtooth rack.

6. The boring cutter assembly for a numerical control machine tool according to claim 1, wherein each of the boring cutter blades is coupled to the cutter bar by a fastening member.

7. The boring cutter assembly for a numerical control machine tool according to claim 6, further comprising a belleville spring disposed between the boring blade and a fastener or between the cutter bar and the fastener.