阅读说明：本技术 一种龙门铣刀杆 (Gantry milling cutter bar ) 是由 鲁春平 夏时谦 刘连福 林剑铖 沈伟华 陈林 于 2019-12-12 设计创作，主要内容包括：本发明提供一种龙门铣刀杆,包括依次固定连接的刀杆头部、刀杆和刀柄；所述刀杆包括芯部刀杆、套筒以及填充在所述芯部刀杆和所述套筒之间的减震材料；所述刀杆头部与铣刀螺纹连接。本发明的龙门铣刀杆可以使得加长铣刀杆的质量更轻,减震效果更好。(The invention provides a gantry milling cutter bar, which comprises a cutter bar head, a cutter bar and a cutter handle, wherein the cutter bar head, the cutter bar and the cutter handle are fixedly connected in sequence; the cutter bar comprises a core cutter bar, a sleeve and a damping material filled between the core cutter bar and the sleeve; the head of the cutter bar is in threaded connection with the milling cutter. The gantry milling cutter rod provided by the invention has the advantages that the lengthened milling cutter rod is lighter in weight and better in damping effect.)

1. A gantry milling cutter bar is characterized by comprising a cutter bar head, a cutter bar and a cutter handle which are fixedly connected in sequence; the cutter bar comprises a core cutter bar, a sleeve and a damping material filled between the core cutter bar and the sleeve; the head of the cutter bar is in threaded connection with the milling cutter.

2. The gantry milling cutter bar of claim 1, wherein the shock absorbing material is rubber particles.

3. The gantry milling cutter bar of claim 1, wherein the shock absorbing material is a glass cement.

4. The gantry milling cutter bar of claim 1, wherein the shock absorbing material is rubber particles and glass cement.

5. A gantry milling cutter bar according to claim 1, wherein the bar length is 600 mm.

6. A gantry milling cutter bar according to claim 1, wherein the core cutter bar through sleeve is fixedly connected to the cutter bar head and the tool shank, respectively.

7. A gantry milling cutter bar according to claim 6, wherein the core bar extends through the head of the bar to form a raised area having a cross-sectional area that is consistent with the cross-sectional area of the core bar and is threadedly engaged with the mill.

8. A gantry milling cutter bar according to claim 7, wherein the raised area is 20 mm in length.

Technical Field

The invention relates to the technical field of gantry milling lengthened cutter bars, in particular to a gantry milling cutter bar.

Background

The milling machine is a milling machine with a portal frame and a horizontal long lathe bed. The planer type milling machine can simultaneously machine the surface by a plurality of milling cutters, has higher machining precision and production efficiency, and is suitable for machining planes and inclined planes of large-scale workpieces in batch and mass production. The deep hole machining is a common operation of the gantry milling machine, and when the deep hole is machined daily, the gantry milling machine cannot be clamped (the weight is limited to 25kg) due to the fact that a common lengthened cutter bar is used, vibration is large, machining efficiency is affected, and machining quality is not good.

Disclosure of Invention

Based on the technical scheme, the gantry milling cutter rod provided by the invention has the advantages that the lengthened milling cutter rod is lighter in weight and better in damping effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

a gantry milling cutter bar comprises a cutter bar head, a cutter bar and a cutter handle which are fixedly connected in sequence; the cutter bar comprises a core cutter bar, a sleeve and a damping material filled between the core cutter bar and the sleeve; the head of the cutter bar is in threaded connection with the milling cutter.

The milling cutter rod is further improved as follows:

the shock absorption material is rubber particles.

In the above technical solution, preferably, the shock-absorbing material is glass cement.

In the above technical solution, preferably, the damping material is rubber particles and glass cement.

In the above technical solution, preferably, the length of the tool bar is 600 mm.

In the above technical solution, preferably, the core cutter bar penetrates through the sleeve and is fixedly connected with the cutter bar head and the cutter handle respectively.

In the above technical solution, preferably, the core bar penetrates through the head of the bar to form a protruding region, and the cross-sectional area of the protruding region is consistent with that of the core bar and is in threaded connection with the milling cutter.

In the above technical solution, preferably, the length of the protruding area is 20 mm.

According to the scheme, the gantry milling cutter bar is characterized in that the structure of the commonly used lengthened cutter bar is optimized and divided into the core cutter bar, the sleeve and the filling damping material between the core cutter bar and the sleeve, so that the overall lengthened cutter bar is lighter in weight, meanwhile, the vibration of the core cutter bar is reduced, the damping effect is better, and the machining quality and the efficiency are better when deep holes are machined.

Drawings

FIG. 1 is a block diagram of a gantry milling cutter bar according to an embodiment of the present invention;

figure 2 is a front and bottom view of a gantry milling cutter bar in an embodiment of the present invention.

Wherein, 1, a knife handle; 2. a sleeve; 3. a core cutter bar; 4. a cutter bar head; 5. a shock absorbing material.

Detailed Description

The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 2, the embodiment of the present invention will first describe the structure and parameter conditions of the gantry milling cutter bar of the present invention.

The gantry milling cutter bar of the embodiment comprises a cutter bar head 4, a cutter bar and a cutter handle 1 which are fixedly connected in sequence; the cutter bar comprises a core cutter bar 3, a sleeve 2 and a damping material 5 filled between the core cutter bar and the sleeve; the cutter bar head 4 is in threaded connection with the milling cutter.

The handle 1 of this embodiment adopts BT50 (model) handle, and the adoption glass cement or the rubber granule of packing between core cutter arbor 3, sleeve 2 is good, cushions core cutter arbor 3, reduces the vibration, has alleviateed the weight of whole cutter arbor simultaneously.

Referring to FIG. 2, the dimension parameter of the tool holder is preferably 600 mm, and other parameters are shown in FIG. 2. In practical use, the thickness of the head of the tool holder is preferably 40 mm, and the thickness of the protruding region of the head of the tool holder, which is used for clamping the milling cutter, is preferably 20 mm. Meanwhile, the diameter of the thread of the inner ring screwed with the milling cutter is preferably 48 mm.

According to the scheme, the gantry milling cutter bar is characterized in that the structure of the commonly used lengthened cutter bar is optimized and divided into the core cutter bar, the sleeve and the filling damping material between the core cutter bar and the sleeve, so that the overall lengthened cutter bar is lighter in weight, meanwhile, the vibration of the core cutter bar is reduced, the damping effect is better, and the machining quality and the efficiency are better when deep holes are machined.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.