CN209754119U - Combined machining tool - Google Patents

Abstract

The utility model provides a combined processing tool for processing parts with two-layer stepped shafts, including an outer tool for processing the outer peripheral surface and an inner tool for chamfering, the inner tool is embedded It is inside the outer cutter and is detachably connected with the outer cutter. The outer cutter includes an outer blade, an outer handle, an outer cutter head, and a plurality of outer cutter columns for fixing the outer blade on the outer cutter head. The outer cutter The cutter column is arranged in a circumferential matrix on the outer cutter head; the outer blade includes a stepped first cutting edge and a second cutting edge, and an inclined transition is set between the first cutting edge and the second cutting edge The third cutting edge; the inner tool packs an inner handle, an inner cutter head and an inner blade, the inner blade is arranged on the inner cutter head, the inner cutter head is arranged inside several columns, and the inner blade is provided with the first Four cutting edges.

Description

A combined processing tool

technical field

The utility model relates to the technical field of processing cutters, in particular to a combined processing cutter.

Background technique

Please refer to Figure 1, it is a two-layer stepped shaft, which includes a first stepped shaft with a larger outer diameter and a second stepped shaft with a smaller outer diameter. , it is necessary to process A outer diameter, B outer diameter, C chamfer, D burr and E root, usually use a corn milling cutter to process the second stepped shaft to the required outer diameter, and pre-mill the first stepped shaft, and then use The 90° chamfering knife chamfers the second stepped shaft, and then uses the forming knife to process the first stepped shaft to the required outer diameter, removes the burrs and cleans the root of the first stepped shaft; the whole process requires three kinds of knives, Three times of processing, long processing time and low efficiency, in addition, the round shape of the milling cutter leads to burrs and flanging and sometimes tool marks.

In view of this, the inventor has specially designed a kind of combined processing cutter, and this case arises thus.

Utility model content

In order to solve the above problems, the technical scheme of the utility model is as follows:

A combined machining tool for machining parts with two-layer stepped shafts, including an outer tool for machining the outer peripheral surface and an inner tool for chamfering, the inner tool is embedded in the outer tool , and is detachably connected with the outer cutter, the outer cutter includes an outer blade, an outer handle, an outer cutter head, and a plurality of outer cutter columns for fixing the outer blades arranged on the outer cutter head, the outer cutter columns are in the form of a circle The matrix is arranged on the outer cutter head; the outer blade includes a stepped first cutting edge and a second cutting edge, and a third cutting edge with an oblique transition is set between the first cutting edge and the second cutting edge ;

The inner cutter packs an inner handle, an inner cutter head and an inner blade, the inner blade is arranged on the inner cutter head, the inner cutter head is arranged inside several columns, and a fourth cutting edge is arranged on the inner blade.

Further, a receiving groove is provided on the outer knife handle, and the inner knife handle is detachably connected to the outer knife handle through the receiving groove.

Further, the inner handle is transitionally connected with the receiving groove, and a plurality of internally threaded holes are provided on the outer peripheral surface of the outer handle, and several internally threaded holes extend from the outer peripheral surface of the outer handle to the inner side wall of the receiving groove, and the inner The knife handle is locked and locked in the receiving groove through a number of bolts and internal threaded holes.

Further, a first flat position is set on the outer circumferential surface of the outer handle on one side of the internal threaded hole, a second flat position is set on the outer circumferential surface of the inner knife handle, and the ends of several bolts are locked against the second flat position tight.

Further, first chip removal grooves are provided on the outer cutter heads, and the first chip removal grooves are arranged between any two outer cutter columns.

Further, the inner cutter head is provided with a second chip removal groove, and the second chip removal groove is located on the side of the fourth cutting edge of the inner blade.

Further, the outer shank, the outer shank and the outer shank are of an integral structure, all of which are made of cemented carbide YG8 material, and the inner shank and the inner cutter head are also of an integral structure, and are all made of hard alloy Alloy YG8 material.

Further, both the outer blade and the inner blade are made of diamond material.

Further, cooling holes communicated with each other are provided in the outer tool holder and the cutter head.

Further, the first cutting edge portion is pointed.

The combined cutter of the utility model is provided with an outer cutter and an inner cutter, and the outer blade of the outer cutter is provided with a first cutting edge and a second cutting edge, so that the two-layer stepped shaft can be processed at the same time, and the chamfering can be performed at the same time. An inclined third cutting edge is set between the cutting edge and the second cutting edge, which can be used to remove burrs. Using a combined tool can process the outer diameter, chamfering and deburring of two-layer stepped shafts at the same time, reducing tool change time , can greatly improve the processing efficiency, the overall processing is simple, the processing cost is low, and the processing quality is good.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model .

in:

Fig. 1 is the processing schematic diagram of two-layer stepped shaft of the present utility model;

Fig. 2 is the explosion diagram of the utility model combined cutter;

Fig. 3 is a sectional view of the utility model combined cutter;

Fig. 4 is a partial schematic diagram of the utility model combined cutter.

Label description:

01-outer cutter, 02-inner cutter, 10-outer shank, 11-accommodating groove, 12-adjustment threaded hole, 13-first flat position, 14-inner threaded hole, 20-outer cutterhead, 21-first Chip flute, 30-outer column, 40-outer insert, 41-first chip edge, 42-second chip edge, 43-third chip edge, 50-inner tool holder, 51-second flat position, 60-inner cutter head, 61-second flute, 70-inner blade, 71-fourth cutting edge, 80-cooling hole.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Figures 2 to 3, which are a combined processing tool as the best embodiment of the present utility model, used to process parts with two-layer stepped shafts, wherein the two-layer stepped shafts include the second one with a larger outer diameter A stepped shaft and a second stepped shaft with a smaller outer diameter, while the combined tool of the present invention mainly processes the outer diameter of the first stepped shaft, the outer diameter of the second stepped shaft, the chamfering of the second stepped shaft, and the removal of the first step Shaft deburring and cleaning the root of the first step shaft. Among them, the combined processing tool includes an outer tool 01 for processing the outer peripheral surface and an inner tool 02 for chamfering. The inner tool 02 is embedded in the outer tool 01 and is detachably connected with the outer tool 01. The outer tool 01 includes an outer blade 40, an outer handle 10, an outer cutter head 20, and several outer cutter columns 30 for fixing the outer blade 40 arranged on the outer cutter head 20, and the outer cutter columns 30 are arranged on the outer cutter head 20 in a circular matrix Upper: The outer insert 40 includes a stepped first cutting edge 41 and a second cutting edge 42, and a third cutting edge 43 with an oblique transition is provided between the first cutting edge 41 and the second cutting edge 42. Specifically, The first cutting edge 41 is used to process the first stepped shaft, the second cutting edge 42 is used to process the second stepped shaft, the third cutting edge 43 is used to remove the burrs of the first stepped shaft, and the first cutting edge 41 ends The tip is pointed, which can clean the root of the first step shaft.

The inner cutter 02 includes an inner handle 50, an inner cutter head 60 and an inner blade 70, the inner blade 70 is arranged on the inner cutter head 60, the inner cutter head 60 is arranged on the inner side of several columns, and the inner blade 70 is provided with a fourth cutting edge 71; A specific fourth cutting edge 71 is used for machining the chamfer of the second stepped shaft. Using a combination tool can process the outer diameter, chamfering and deburring of two-layer stepped shafts at the same time, reducing tool change time, greatly improving processing efficiency, simple overall processing, low processing cost, and good processing quality. In addition, there are four outer cutter posts 30 and outer blades 40 of the present invention, which are arranged at equal intervals on the circumference, and two inner blades 70 are arranged.

An accommodating groove 11 is arranged on the outer handle 10, and the inner handle 50 is detachably connected with the outer handle 10 through the receiving groove 11; A plurality of internally threaded holes 14 are provided, and several internally threaded holes 14 extend from the outer circumferential surface of the outer handle 10 to the inner side wall of the accommodation groove 11, and the inner knife handle 50 is locked in the accommodation groove 11 through a plurality of bolts and the internally threaded holes 14; The bottom of the slot 11 is provided with an adjusting threaded hole 12, and the position of the inner handle 50 inside the receiving slot 11 can be adjusted through an adjusting bolt. 14 fitted bolts. Two internally threaded holes 14 of the present utility model can be arranged side by side, and two corresponding bolts are arranged.

A first flat position 13 is provided on the outer circumferential surface of the outer handle 10 located on one side of the internally threaded hole 14, and a second flat position 51 is provided on the outer circumferential surface of the inner knife handle 50, and the ends of several bolts are locked against the second flat position 51 , by setting the first flat position 13, the bolts can be easily screwed in, and at the same time, setting the second flat position 51 can increase the locking force and prevent slippage during processing.

The first chip removal groove 21 is arranged on the outer cutter head 20, and the first chip removal groove 21 is arranged between two outer cutter columns 30; the second chip removal groove 61 is arranged on the inner cutter head 60, and the second chip removal groove 61 is located on the side of the fourth cutting edge 71 of the inner blade 70, and the first chip removal groove 21 and the second chip removal groove 61 are provided to facilitate chip removal. The outer tool holder 10 and the cutter head are provided with interconnecting cooling holes 80, which are used for cooling the outer cutter head 20, the outer cutter post 30 and the outer blade 40 during processing, so as to prevent the processing efficiency and processing accuracy from being affected by excessive temperature. , Correspondingly, in cooperation with the outer cutter column 30, four cooling holes 80 are provided.

The outer tool handle 10, the outer tool bar and the outer tool column 30 are of an integrated structure, and all of them are made of hard alloy YG8 material. ; Outer blade 40 and inner blade 70 are made of diamond material.

To sum up, the combined tool of the present utility model can process the two-layer stepped shaft at the same time by setting the outer tool and the inner tool, and the outer blade of the outer tool is provided with the first chip edge and the second chip edge, and can process the two-layer stepped shaft at the same time. At the same time, an inclined third cutting edge is set between the first cutting edge and the second cutting edge, which can be used to remove burrs. Using a combined tool can simultaneously process the outer diameter, chamfering and deburring of two-layer stepped shafts , Reducing the tool change time can greatly improve the processing efficiency, the overall processing is simple, the processing cost is low, and the processing quality is good.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (9)

1. A combined machining tool is characterized by comprising an outer tool and an inner tool, wherein the outer tool is used for machining an outer circumferential surface, the inner tool is used for machining a chamfer, the inner tool is embedded in the outer tool and detachably connected with the outer tool, the outer tool comprises an outer blade, an outer tool handle, an outer tool disc and a plurality of outer tool posts, the outer tool posts are arranged on the outer tool disc and used for fixing the outer blade, and the outer tool posts are arranged on the outer tool disc in a circumferential matrix; the outer insert comprises a first cutting edge and a second cutting edge, and a third cutting edge in inclined transition is arranged between the first cutting edge and the second cutting edge;

The inner cutter comprises an inner cutter handle, an inner cutter disc and an inner blade, wherein the inner blade is arranged on the inner cutter disc, the inner cutter disc is arranged on the inner sides of the plurality of stand columns, and a fourth cutting edge is arranged on the inner blade.

2. The combination machining tool of claim 1, wherein the outer shank defines a receiving groove, and the inner shank is removably coupled to the outer shank via the receiving groove.

3. The combined machining tool of claim 2, wherein the inner tool shank is in transitional connection with the accommodating groove, the outer circumferential surface of the outer tool shank is provided with a plurality of internal thread holes, the plurality of internal thread holes extend from the outer circumferential surface of the outer tool shank to the inner side wall of the accommodating groove, and the inner tool shank is locked in the accommodating groove by matching with the internal thread holes through a plurality of bolts.

4. The combined machining tool of claim 3, wherein the outer tool shank is provided with a first flat portion on the outer circumferential surface on one side of the internal threaded hole, the inner tool shank is provided with a second flat portion on the outer circumferential surface, and the ends of the plurality of bolts are locked against the second flat portion.

5. The combination cutting tool of claim 1, wherein a first flute is provided on the outer cutter head, and the first flute is provided between each two outer tool posts.

6. The combination cutting tool of claim 1, wherein said inner cutter head defines a second flute, said second flute being disposed on a fourth cutting edge side of said inner insert.

7. The combined machining tool of claim 1, wherein the outer tool shank, the outer tool shank and the outer tool post are of an integral structure and are made of cemented carbide YG8, and the inner tool shank and the inner tool head are of an integral structure and are made of cemented carbide YG 8.

8. the combination cutting tool of claim 1, wherein the outer and inner blades are diamond material.

9. The combination machining tool of claim 1, wherein cooling holes are provided in the outer shank and the cutter head in communication with each other.