CN2298893Y

CN2298893Y - Adjustable inner hole working tool

Info

Publication number: CN2298893Y
Application number: CN 97239785
Authority: CN
Inventors: 陈龙燕
Original assignee: Xi'an Heavy-Duty Machinery Inst Ministry Of Machine Building
Current assignee: Xi'an Heavy-Duty Machinery Inst Ministry Of Machine Building
Priority date: 1997-07-17
Filing date: 1997-07-17
Publication date: 1998-12-02
Anticipated expiration: 2007-07-17

Abstract

The utility model relates to an adjustable inner hole working tool, comprising a tool bar, a tool shank body which is connected together with the tool bar, and a tool bit which is installed on the end part of the tool bar, wherein, the tail part of the tool bar is a cylinder. The tool shank body is provided with an elastic open clamping sleeve. The inner part of the elastic clamping sleeve is provided with an elastic open adjusting sleeve. The tail part of the tool bar is inserted into the elastic open adjusting sleeve, and is connected together with the tool shank body by a locking screw of the open clamping sleeve of the tool shank body. While in use, a proper tool bar is selected according to the diameter and the depth of a worked hole and is inserted into the clamping sleeve of the tool shank, so the material of the tool body is saved, and the time for replacing and installing a tool is reduced.

Description

The adjustable inner hole process tool

The utility model relates to a kind of machine cut cutter, particularly a kind of adjustable inner hole process tool.

The cutting tool of processing endoporus still adopts traditional integral cutter basically at present, and this traditional cutting tool mainly partly is made up of knife bar, handle of a knife and cutter head etc., and wherein knife bar and handle of a knife are same integral body.Because the scope of application of each cutter is less, therefore, hole for the processing different-diameter and the degree of depth, often to make and prepare many cutters, this will consume many cutter hub materials, the occasion of particularly big in processing, dark endoporus, above-mentioned situation is more outstanding, and sharpening, clamping are also not too convenient.

The purpose of this utility model provides a kind of cutter hub material of saving, and can adapt to the endoporus the debugged process tool of different-diameter and degree of depth endoporus.

The solution that realizes the utility model purpose is: the adjustable inner hole process tool that provides, toolholder body that comprises the knife bar that can stretch into processed endoporus, is connected as a single entity with knife bar and the cutter head that is contained in the knife bar end, wherein the knife bar afterbody is a cylinder, toolholder body is provided with an elastic opening chuck, an elastic opening adjustment cover is housed in this elastic jacket, the knife bar afterbody inserts in this elastic opening adjustment cover, and is connected as a single entity by the lock-screw and the toolholder body of toolholder body opening chuck.Can select to get final product in the suitable knife bar insertion handle of a knife chuck according to the diameter and the degree of depth in processed hole during use, thereby save cutter hub material and the time of changing the clamping cutter.

Compared with prior art the utility model not only can be saved cutter material, and changes convenient mounting and clamping, and it is just more convenient to change clamping especially when the endoporus of processing ladder class, also can enhance productivity simultaneously.In addition, because afterbody is cylindrical, thus when clamping, can suitably rotate knife bar, so that the height of point of a knife is finely tuned.Because changing knife rod when the utility model uses so the knife bar end can be made various versions easily, is installed various endoporus cutter heads, thereby has been enlarged the range of work.

Below in conjunction with accompanying drawing content of the present utility model is described.

Fig. 1 is the structure chart of an embodiment of the utility model.

Fig. 2 is the cutaway view at Figure 1A-A place.

Fig. 3 is the structure chart of knife bar among Fig. 1.

Fig. 4 is the cutter head structure figure that matches with knife bar tail end shown in Figure 3.

Fig. 5 is the structure chart of the another kind of knife bar of the utility model.

Fig. 6 is that the K of Fig. 5 is to view.

As shown in Figure 1 and Figure 2: knife bar 1 is a cylinder, and its leading section mills out an inclined-plane, is used to place cutter head 2.Cutter head 2 adopts mechanical clamping, promptly by pressing plate 3, adjusting pad 4 and screw 5 with cutter head 2 clampings at knife rod head.Toolholder body 6 comprises retained part 7 and elastic opening chuck 8 two parts of square column type, retained part 7 is contained on the lathe cutter saddle during use, elastic opening adjustment cover 9 is housed in the elastic opening chuck 8, the afterbody of knife bar 1 inserts again to be adjusted in the cover 9, can be with knife bar 1 clamping on toolholder body 6 by screw 10.In the time will processing the endoporus of the different apertures and the degree of depth, only need to change corresponding knife bar and adjust cover 9 to get final product.In order to process some special-shaped hole, as the aperture of macropore bottom or the escape of bottom, hole etc., be provided with a screw 11 (referring to Fig. 3) that loose joint cutter head 12 is installed at the tail end of knife bar 1, the structure of loose joint cutter head 12 is as shown in Figure 4.

For the higher endoporus of dimension precision requirement, can adopt knife bar as shown in Figure 5.These knife bar 13 heads are provided with the square hole 14 that the floating boring tool head is installed, and are provided with the inner passage 15 of leading to aforementioned square hole 14 nose end places in the knife bar 13, and the entrance point of this passage 15 is screws 16 of a tube connector joint, so that cooling fluid is delivered to key cutter head place.Above-mentioned square hole 14 is that the square groove 17 by knife bar 13 ends surrounds with pressing plate 18, and pressing plate 18 is screwed in the knife bar end.So both be beneficial to processing, also can have guaranteed the precision of square hole 14.

The utility model is particularly suitable for processing diameter at the deep hole more than 25 millimeters.

Claims

1, a kind of adjustable inner hole process tool, toolholder body (6) that comprises the knife bar (1,13) that can stretch into processed endoporus, is connected as a single entity with knife bar and the cutter head (2) that is contained in the knife bar end, it is characterized in that said knife bar (1,13) afterbody is a cylinder, said toolholder body (6) is provided with an elastic opening chuck (8), an elastic opening adjustment cover (9) is housed in this elastic jacket (8), the knife bar afterbody inserts in this elastic opening adjustment cover (9), and is connected as a single entity with toolholder body (6) by the lock-screw (10) of toolholder body (6) opening chuck.

2, process tool as claimed in claim 1 is characterized in that being provided with a screw (11) that loose joint cutter head (12) is installed at the tail end of knife bar (1).

3, process tool as claimed in claim 1 is characterized in that knife bar (13) head is provided with the square hole (14) that the floating boring tool head is installed, and is provided with the inner passage (15) of leading to aforementioned square hole (14) nose end place in the knife bar (13).