CN211680966U - Milling cutter clamping device - Google Patents

Abstract

The utility model provides a milling cutter clamping device for clamping a milling cutter. The milling cutter clamping device comprises a main body, a first fixing part and a second fixing part, and the first fixing part is a hollow cylinder with an accommodating space type structure, the second fixing part is located in the accommodating space, the first part includes an extension body, an installation hole opened on the extension body and a fixing piece installed in the installation hole, the second fixing part includes a main body and a concave groove formed on the main body, The recessed groove includes a circular groove and a fixed groove interconnected with the circular groove. The milling cutter includes a cutter head, a cutter seat and an extension. The size of the cutter seat matches the size of the accommodating space, and the size of the extension is Matching with the recessed groove, the first fixing part corresponds to the clamping tool seat, and the second fixing part corresponds to the clamping extension. Compared with the related art, the clamping device of the milling cutter provided by the utility model has better tightening effect.

Description

Milling tool clamping device

【Technical field】

The utility model relates to the technical field of machining, in particular to a milling cutter clamping device.

【Background technique】

The milling cutter is mainly used for machining planes, steps, grooves, forming surfaces and cutting workpieces on the milling machine. Whether the milling cutter is firmly fixed is an important factor affecting the processing effect. However, the fixing effect of the milling cutter in the prior art is not good, thereby affecting the final machining accuracy.

Therefore, it is necessary to provide a new milling cutter clamping device to solve the above problems.

【Content of utility model】

The technical problem to be solved by the utility model provides a milling cutter clamping device with better fastening effect.

A milling cutter clamping device for clamping a milling cutter, the milling cutter clamping device comprises a body and a first fixing part and a second fixing part fixed on the body, the first fixing part is A hollow cylindrical structure with an accommodating space, the second fixing part is located in the accommodating space, and the first part includes an extension body extending from the main body, a mounting hole opened on the extension body, and a mounting hole on the extension body. The fixing member of the mounting hole, the second fixing part includes a main body and a concave groove formed from a side surface of the main body close to the milling cutter to a direction away from the milling cutter, the concave groove comprises a circular shape A groove and a fixing groove communicated with the circular groove, the milling cutter includes a cutter head, a cutter seat fixedly connected with the cutter head, and a side surface away from the cutter head from the cutter head. an extension part extending away from the cutter head, the size of the cutter seat matches the size of the accommodating space, the size of the extension part matches the concave groove, the first fixed The part correspondingly clamps the tool holder, and the second fixing part clamps the extension part correspondingly.

Preferably, the extension body includes an inner surface enclosing the accommodating space and an outer surface disposed opposite to the inner surface, and the mounting hole includes a direction extending through the extension body from the outer surface to the inner surface. A through hole and a receiving groove formed in the direction from the inner surface to the outer surface, the receiving groove and the through hole communicate with each other.

Preferably, the fixing member includes a clamping member and a fastener fixedly connected with the clamping member, and the shape and size of the clamping member are matched with the shape and size of the receiving groove.

Preferably, the inner wall of the through hole is provided with an inner thread, the part of the outer surface of the fastener located in the through hole is provided with an outer thread, and the outer thread of the fastener is connected with the thread on the inner wall of the through hole. The internal threads are matched, the fixing member is correspondingly connected with the extending body in a screw thread, and the clamping member is fixed on one end of the fastener.

Preferably, there are three mounting holes, the three mounting holes are distributed in an annular array along the central axis of the extending body, there are three fixing pieces, and the three fixing pieces correspond to the three fixing pieces respectively. Mounting hole settings.

Preferably, the tool seat includes a first outer wall and an installation groove opened on the first outer wall, the shape and size of the installation groove match the shape and size of the clamping piece, and there are three installation grooves, The three installation grooves are distributed in an annular array along the central axis of the tool holder, and the three installation grooves are arranged facing the three receiving grooves.

Preferably, the circular groove includes a bottom wall on a side away from the milling cutter and a side wall connected with the bottom wall, and the fixing groove is recessed from the side wall to a direction away from the central axis of the main body. .

Preferably, there are four fixing grooves, and the four fixing grooves are distributed in an annular array along the central axis of the main body, and the extension portion includes a second outer wall and an extension formed by extending outward from the second outer wall. The shape and size of the extension wall are matched with the shape and size of the fixing groove. The extension wall is provided with four, and the four extension walls are distributed in an annular array along the central axis of the extension portion. The extension walls are arranged corresponding to the four fixing grooves.

Compared with the related art, the milling cutter clamping device provided by the present invention clamps the milling cutter by setting the first fixing part and the second fixing part respectively, the tightening effect is good, and the first fixing part is The two fixing parts can not only play a good role in limiting and tightening, but also through the cooperation between the recessed groove and the milling cutter, the milling cutter can also be well positioned during installation, which reduces the difficulty of installation. .

【Description of drawings】

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

Fig. 1 is the sectional structure schematic diagram of the milling cutter clamping device and milling cutter provided by the utility model;

FIG. 2 is a schematic cross-sectional structure diagram of the first fixing part shown in FIG. 1 after being clamped with a milling cutter;

FIG. 3 is a schematic cross-sectional structural diagram of the second fixing part shown in FIG. 1 after being clamped with the milling cutter.

【Detailed ways】

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figure 1 to Figure 3 in combination. The present invention provides a milling cutter clamping device 100 for clamping a milling cutter 200. The milling cutter clamping device 100 includes a body 10 and a first fixing portion 20 and a second fixing portion 20 and a second fixing portion fixed on the body 10. The fixing part 30 , the first fixing part 20 and the second fixing part 30 are used for clamping and fixing the milling cutter 200 . Preferably, the body 10 , the first fixing portion 20 and the second fixing portion 30 are integrally formed.

The first fixing part 20 is a hollow cylindrical structure with an accommodating space 24 , and the second fixing part 30 is located in the accommodating space 24 . Specifically, the first part 20 includes an extension body 21 extending from the main body 10 , an installation hole 22 formed on the extension body 21 , and a fixing member 23 installed in the installation hole 22 . The extension body 21 includes an inner surface 211 surrounding the accommodating space 24 and an outer surface 212 opposite to the inner surface 211 . The mounting hole 22 includes a direction from the outer surface 212 to the inner surface 211 . A through hole 221 is formed through the extension body 21 and a receiving groove 222 is recessed from the inner surface 211 to the outer surface 212 . The receiving groove 222 and the through hole 221 communicate with each other. The fixing member 23 includes a clamping member 231 and a fastener 232 fixedly connected to the clamping member 231 . The shape and size of the clamping member 231 match the shape and size of the receiving groove 222 . A part of 232 penetrates through the through hole 221 and is fixedly connected with the clamping member 231 . The inner wall of the through hole 221 is provided with an inner thread, the part of the outer surface of the fastener 232 located in the through hole 221 is provided with an outer thread, and the outer thread of the fastener 232 is connected to the inner wall of the through hole 221 The inner thread on the upper part is matched, and the fixing member 23 is correspondingly connected with the extending body 21 by thread. The clamping member 231 is fixed to one end of the fastener 232. Specifically, the clamping member 231 can be fixedly connected to the fastener 232 by means of heat fusion or screw connection. A threaded hole is defined on the holding member 231 for the fastener 232 to penetrate, so that the fastener 232 can drive the clamping member 231 to move. In this embodiment, the clamping member 231 is made of elastic material, such as rubber, so that the clamping member 231 can better clamp the milling cutter 200 . Preferably, three mounting holes 22 are provided, and the three mounting holes 22 are distributed in an annular array along the central axis of the extending body 21 . Correspondingly, there are three fixing pieces 23 , and the three fixing pieces 23 are respectively arranged corresponding to the three mounting holes 22 , so that the fastening effect can be better.

The second fixing portion 30 has a cylindrical structure, and the central axis of the second fixing portion 30 and the central axis of the first fixing portion 20 are located on the same straight line. The second fixing portion 30 includes a main body 31 and a concave groove 32 formed from a side surface of the main body 31 close to the milling cutter 200 to a direction away from the milling cutter 200 . The concave groove 32 includes a circular recess. The groove 321 and the fixing groove 322 communicated with the circular groove 321. The circular groove 321 includes a bottom wall 3211 on the side away from the milling cutter 200 and a side wall 3212 connected with the bottom wall 3211. , the fixing groove 322 is recessed from the side wall 3212 to the direction away from the central axis of the main body 31 . Preferably, there are four fixing grooves 322 , and the four fixing grooves 322 are distributed in an annular array along the central axis of the main body 31 , so that the fastening effect can be better.

The milling cutter 200 includes a cutter head 40 , a cutter seat 50 fixedly connected with the cutter head 40 , and a cutter head 50 extending away from the cutter head 40 from a surface of the cutter head 50 away from the cutter head 40 . The extension part 60 , the first fixing part 20 correspondingly clamps the blade holder 50 , the second fixing part 30 clamps the extension part 60 correspondingly, the blade head 40 , the blade holder 50 and the The extension portion 60 is integrally formed. The knife seat 50 and the extension part 60 are both cylindrical-like as a whole, the center axes of the knife seat 50 and the extension part 60 are located on the same straight line, and the diameter of the extension part 60 is smaller than that of the knife The diameter of the seat 50. Specifically, the size of the blade holder 50 matches the size of the accommodating space 24 , and the size of the extension portion 60 matches the size of the recessed groove 32 , so that the blade holder 50 can be installed in any In the accommodating space 24 , the extending portion 60 can be installed into the recessed groove 32 .

Specifically, the tool holder 50 includes a first outer wall 51 and an installation groove 52 formed on the first outer wall 51 . The shape and size of the installation groove 52 match the shape and size of the clamping member 231 , so that the The clamping member 231 can enter into the installation groove 52 under the push of the fastener 232 to clamp the milling cutter 200 . Preferably, there are three installation grooves 52 , the three installation grooves 52 are distributed in an annular array along the central axis of the tool holder 50 , and the three installation grooves 52 are disposed opposite to the three receiving grooves 222 .

The extension portion 60 includes a second outer wall 61 and an extension wall 62 extending outward from the second outer wall 61 . The shape and size of the extension wall 62 match the shape and size of the fixing groove 322 . Preferably, there are four extending walls 62 , the four extending walls 62 are distributed in an annular array along the central axis of the extending portion 60 , and the four extending walls 62 are disposed corresponding to the four fixing grooves 322 . .

Compared with the related art, the milling cutter clamping device 100 provided by the present invention clamps the milling cutter 200 by setting the first fixing part 20 and the second fixing part 30 respectively, and the fastening effect is good, And the second fixing part 30 can not only play a good role in limiting and tightening, but also through the cooperation between the concave groove and the extension wall of the milling cutter, it can also be used for the milling cutter during installation. The knife 200 performs a good positioning function, which reduces the difficulty of installation.

The above are only the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these belong to The scope of protection of the utility model.

Claims (8)

1. A milling cutter clamping device is used for clamping a milling cutter and is characterized by comprising a body, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are fixed on the body, the first fixing part is of a hollow cylindrical structure with an accommodating space, the second fixing part is positioned in the accommodating space, the first fixing part comprises an extending body formed by extending the body, a mounting hole formed in the extending body and a fixing part mounted in the mounting hole, the second fixing part comprises a main body and a concave groove formed by recessing the milling cutter from one side surface, close to the milling cutter, of the main body in a direction away from the milling cutter direction, the concave groove comprises a circular groove and a fixing groove mutually communicated with the circular groove, the milling cutter comprises a cutter head, a cutter seat fixedly connected with the cutter head and an extending part formed by extending from the side surface, away from the cutter head, in a direction away from the cutter seat in a direction away from the cutter head, the size of the tool apron is matched with that of the accommodating space, the size of the extending part is matched with that of the concave groove, the first fixing part correspondingly clamps the tool apron, and the second fixing part correspondingly clamps the extending part.

2. The milling cutter clamping device according to claim 1, wherein the extension body includes an inner surface enclosing the receiving space and an outer surface disposed opposite to the inner surface, the mounting hole includes a through hole penetrating the extension body from the outer surface toward the inner surface and a receiving groove recessed from the inner surface toward the outer surface, and the receiving groove and the through hole communicate with each other.

3. The milling cutter clamping device according to claim 2, wherein the fixing member includes a clamping member and a fastening member fixedly connected to the clamping member, the clamping member being sized and shaped to match the receiving recess.

4. The milling cutter clamping device according to claim 3, wherein an inner wall of the through hole is provided with an internal thread, a part of an outer surface of the fastening member located in the through hole is provided with an external thread, the external thread of the fastening member is matched with the internal thread on the inner wall of the through hole, the fixing member is correspondingly in threaded connection with the extension body, and the clamping member is fixed to one end of the fastening member.

5. The milling cutter clamping device according to claim 4, wherein there are three mounting holes, three mounting holes are distributed in an annular array along the central axis of the extension body, and there are three fixing members, one for each of the three mounting holes.

6. The milling cutter clamping device according to claim 5, wherein the holder includes a first outer wall and three mounting grooves formed in the first outer wall, the mounting grooves being sized and shaped to match the size and shape of the clamping member, the three mounting grooves being arranged in an annular array along a central axis of the holder, the three mounting grooves being disposed opposite the three receiving grooves.

7. The milling cutter clamping device according to claim 6, wherein the circular recess includes a bottom wall on a side remote from the milling cutter and a side wall connected to the bottom wall, and the fixing groove is formed by being recessed from the side wall in a direction away from the central axis of the body.

8. The milling cutter clamping device according to claim 7, wherein the number of the fixing grooves is four, four of the fixing grooves are distributed in an annular array along the central axis of the main body, the extension portion includes a second outer wall and extension walls extending outwardly from the second outer wall, the extension walls are formed in a shape and size matching the shape and size of the fixing grooves, the number of the extension walls is four, the four extension walls are distributed in an annular array along the central axis of the extension portion, and the four extension walls are disposed corresponding to the four fixing grooves.

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