CN217799220U

CN217799220U - Extension bar for reinforcing milling rigidity

Info

Publication number: CN217799220U
Application number: CN202122685074.1U
Authority: CN
Inventors: 韩春晓; 徐夏; 黄琳钧
Original assignee: Shanghai Hudong Shipbuilding Diesel Engine Co ltd; Cssc Marine Power Components Co ltd
Current assignee: Shanghai Hudong Shipbuilding Diesel Engine Co ltd; Cssc Marine Power Components Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-11-15
Anticipated expiration: 2031-11-04

Abstract

The utility model relates to a mill technical field, and disclose a be used for reinforceing and mill rigid extension bar, including the extension bar body, the end department cover of extension bar body is equipped with the damping ring, the inside cavity department of extension bar body runs through there is straining screw, the inside dog that is equipped with in middle section of extension bar body, the middle part outer wall of extension bar body runs through there is locking screw. This be used for reinforceing and mill rigid extension bar, the tapering of extension bar body adopts the setting of morse's conicity value, is connected the purpose in order to reach the cutter growth by the extension bar body to the cutter, and through morse's taper connection can effectual concentricity and the contact rigidity of guaranteeing cutter, handle of a knife, extension bar, reduces draw ratio and shock attenuation design through increasing cutter system diameter, can effectively improve draw ratio and mill the system rigidity of in-process, effectual improvement milling's processing stability.

Description

Extension bar for reinforcing milling rigidity

Technical Field

The utility model relates to a mill technical field, specifically be a be used for reinforceing and mill rigid extension bar.

Background

Milling refers to cutting a workpiece using a rotating multi-edged tool, which is a highly efficient machining method, and such tools are collectively called milling cutters.

The common milling cutter generally has the condition that milling with the length-diameter ratio of more than 4 or interference between a machine tool main shaft and a part exists in the process of line cavity milling, the length of the milling cutter needs to be increased, the cutter is difficult to machine in the machining process, the cutter is obviously damaged, and therefore the extension rod for strengthening milling rigidity is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a be used for reinforceing and mill rigid extension bar to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an extension bar for reinforceing milling rigidity, includes the extension bar body, the end department cover of extension bar body is equipped with the damping ring, the inside cavity department of extension bar body runs through there is straining screw, the inside dog that inlays in middle section of extension bar body, the middle part outer wall of extension bar body runs through there is locking screw.

Preferably, the extension bar body adopts the toper setting, and whole surface coating has the antirust paint face.

Preferably, the damping ring and the extension rod body are coaxially arranged, and the shape and the size of the damping ring are matched with those of the end of the extension rod body;

the whole heavy metal plate that is made of shock attenuation ring through hot pressing cutting mode, and the lateral surface of shock attenuation ring is polished smoothly, the edge is polished into the arc.

Preferably, the stop ring is tightly attached to the tensioning screw in a fixed screw type installation mode;

the sealing of the stop ring adopts a hinge type or sliding sleeve type mode, an anti-falling screw assembly is added, and the outer diameter of the stop ring is the same as the inner diameter of the right side end of the extension rod body.

Preferably, the number of the locking screws is 2, and the stop ring is connected with the locking screws in a clamping manner;

the locking screw is connected with the extension bar body in an interference fit manner, the top surface of a screw cap of the locking screw is flush with the outer surface of the extension bar body, the bottom end of the locking screw is conical, and the surface of the locking screw is also provided with threads;

and a screw limiting bayonet is reserved between the two sides of the stop ring and the mounting position of the locking screw.

(III) advantageous effects

Compared with the prior art, the utility model provides a be used for reinforceing and mill rigid extension bar possesses following beneficial effect:

this an extension bar for strengthening mill rigidity, the tapering of extension bar body adopts morse's conicity value to set up, is connected in order to reach the purpose that the cutter increases by the extension bar body to the cutter, and connects concentricity and the contact rigidity that can effectual assurance cutter, handle of a knife, extension bar through morse's tapering, reduces draw ratio and shock attenuation design through increasing cutter system diameter, can effectively improve draw ratio and mill the system rigidity of in-process, effectual improvement milling's machining stability.

Drawings

Fig. 1 is a schematic structural view of the extension rod for reinforcing milling rigidity of the present invention.

In the figure: 1. an extension bar body; 2. a shock-absorbing ring; 3. tightening the screw; 4. a stopper ring; 5. and locking the screw.

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.

The utility model provides a technical scheme, an extension bar for strengthening milling rigidity, which comprises an extension bar body 1, a damping ring 2, a tensioning screw 3, a stop ring 4 and a locking screw 5, as shown in figure 1, the end of the extension bar body 1 is sleeved with the damping ring 2, the extension bar body 1 adopts a conical arrangement, the whole surface is coated with an antirust paint surface, the taper of the extension bar body 1 adopts a Morse taper value arrangement, the extension bar body 1 is connected with a cutter to achieve the purpose of cutter growth, the concentricity and the contact rigidity of the cutter, a cutter handle and the extension bar can be effectively ensured through the Morse taper connection, the damping ring 2 and the extension bar body 1 adopt a coaxial arrangement, the shape and the size of the damping ring 2 are mutually matched with the shape and the size of the end of the extension bar body 1, through the damping design of assembling the heavy metal damping ring 2 at the end of the extension bar body 1, the vibration tendency of the milling lateral force is reduced, the stability of a cutter in the milling process is improved, the whole damping ring 2 is made of a heavy metal plate in a hot-pressing cutting mode, the outer side surface of the damping ring 2 is polished smoothly, the edge of the damping ring is polished into an arc shape, the cross section of the arc edge is in an arc shape, the anti-extrusion capacity of an annular structure is improved, a tensioning screw 3 penetrates through the hollow part in the extension bar body 1, a stop ring 4 is embedded in the middle section of the extension bar body 1, the stop ring 4 is tightly attached to the tensioning screw 3 in a fixed screw type installation mode, the seal of the stop ring 4 is in a hinge type or sliding sleeve type mode, the installation is simple, an anti-dropping screw assembly is added, the seal parts are locked through a thread structure and used for further locking the joint of the ring body after sealing, the outer diameter of the stop ring 4 is the same as the inner diameter of the right side end of the extension bar body 1, the sleeve joint installation is convenient, the stop ring 4 is arranged on one side of the screw cap of the tensioning screw 3 and can limit the tensioning screw 3 so as to facilitate the installation of a cutter, the locking screw 5 penetrates through the outer wall of the middle part of the

extension bar body

1, 2 locking screws 5 are symmetrically arranged about the axis of the extension bar body 1, the stop ring 4 is connected with the locking screw 5 in a clamping way, the locking screw 5 is screwed into the inner hollow part of the extension bar body 1 from the outer wall of the extension bar body and is clamped with the outer gap of the stop ring 4, the stop ring 4 can be effectively and tightly attached to the tensioning screw 3 in a fixed screw type installation way, the contact rigidity between the stop ring 4 and the tensioning screw is improved, and the cutting rigidity of a milling cutter system is improved, locking screw 5 is connected for interference fit between extension bar body 1, avoid the screw to take place to break away from, the accident that drops, improve spacing performance, and locking screw 5's nut top surface and extension bar body 1's surface parallel and level, avoid the protrusion to lead to the extension bar to appear the installation accident, it is equipped with the spacing bayonet socket of screw to leave between the both sides of retaining ring 4 and locking screw 5's the mounted position, locking screw 5's bottom is the toper, and the surface has also seted up the screw thread, in operation, conical locking screw 5's bottom can be inserted and locate in the spacing bayonet socket of screw that corresponds the side, the screw thread that the surface was seted up has certain anticreep, the dislocation prevention effect, further improve the intensity that connection compactness between them and position were injectd.

The using method of the extension bar comprises the following steps: firstly, the heavy metal damping ring 2 is assembled at the end of the extension bar body 1 to reduce the vibration tendency of the milling lateral force, then the tensioning screw 3 is screwed into the inner hollow part of the extension bar body 1, the stop ring 4 is installed at one side of the nut cap of the tensioning screw 3 to limit the tensioning screw 3 so as to be convenient for the installation of a cutter, and finally the locking screw 5 is screwed into the inner hollow part from the outer wall of the extension bar body 1 and is clamped with the outer gap of the stop ring 4, so that the stop ring 4 is tightly attached to the tensioning screw 3 in a fixed screw type installation mode, the contact rigidity between the stop ring 4 and the tensioning screw is improved, and the cutting rigidity of a milling cutter system is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. An extension bar for reinforcing milling rigidity, comprising an extension bar body (1), characterized in that: the end department cover of extension bar body (1) is equipped with damping ring (2), the inside cavity department of extension bar body (1) runs through there is straining screw (3), the inside dog (4) that is equipped with of middle section of extension bar body (1), the middle part outer wall of extension bar body (1) runs through there is locking screw (5).

2. An extension bar for reinforcing milling rigidity according to claim 1, characterized in that: extension bar body (1) adopts the toper setting, and whole surface coating has the anti-rust paint face.

3. An extension bar for reinforcing milling rigidity according to claim 1, characterized in that: the damping ring (2) and the extension rod body (1) are coaxially arranged, and the shape and the size of the damping ring (2) are matched with those of the end of the extension rod body (1);

the whole damping ring (2) is made of heavy metal plates in a hot-pressing cutting mode, the outer side face of the damping ring (2) is polished smoothly, and the edge of the damping ring is polished into an arc shape.

4. An extension bar for reinforcing milling rigidity according to claim 1, characterized in that: the stop ring (4) is tightly attached to the tensioning screw (3) in a fixed screw type installation mode;

the seal of the stop ring (4) adopts a hinge type or sliding sleeve type mode, an anti-falling screw assembly is added, and the outer diameter of the stop ring (4) is the same as the inner diameter of the right side end of the extension rod body (1).

5. An extension bar for reinforcing milling rigidity according to claim 1, characterized in that: 2 locking screws (5) are symmetrically arranged about the axis of the extension bar body (1), and the stop ring (4) is connected with the locking screws (5) in a clamping manner;

the locking screw (5) is connected with the extension rod body (1) in an interference fit manner, the top surface of a screw cap of the locking screw (5) is flush with the outer surface of the extension rod body (1), the bottom end of the locking screw (5) is conical, and the surface of the locking screw is also provided with threads;

and a screw limiting bayonet is reserved between the two sides of the stop ring (4) and the mounting position of the locking screw (5).