Machining drawing-out cutter bar and machining machine tool

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a machining material digging cutter bar and a machining machine tool, the machining material digging cutter bar comprises a cutter handle and a cutter head, the cutter head is a cylindrical cutter head which is internally provided with a cavity and penetrates through a material digging end, the material digging end is provided with at least one inner boring cutter and at least one outer boring cutter, and the inner boring cutter and the outer boring cutter are arranged on the cutter handle. The inner boring cutter and the outer boring cutter are matched to form an annular cutting track, a chip groove is correspondingly formed in the position, opposite to the boring cutter at the material digging end, of the surface of the cutter head, and cooling liquid channels used for cooling the boring cutter at the material digging end are formed in the cutter handle and the cutter head body. According to the material digging cutter bar for machining, complete bar materials can be dug from bar-shaped raw materials, the dug complete bar materials can be continuously used for production, machining cost is better saved, and economic benefits of production are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and particularly relates to a machining blanking tool bar and a machining machine tool. Background Art

[0002] At present, bar machining generally uses drills, lathe tool bars or boring tools of boring machines for machining. The central part of the bar-shaped raw material is directly drilled, turned or bored, so that the central part of the raw material directly becomes waste chips, which will cause great waste to the machining of precious materials and increase the machining cost. Therefore, in order to better save the machining cost and improve the economic benefit of production, it is necessary to propose a new blanking tool bar suitable for blanking machining from bar-shaped raw materials. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a machining blanking tool bar and a machining machine tool that can extract a complete bar from bar-shaped raw materials.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] Based on one aspect of the utility model, a machining blanking tool bar is provided, which includes a tool shank and a tool head. The tool head is a cylindrical tool head with a cavity inside and penetrating the blanking end. At least one internal boring tool and at least one external boring tool are arranged on the blanking end. The internal boring tool and the external boring tool cooperate to form an annular cutting trajectory. Chip removal grooves are correspondingly arranged on the surface of the tool head opposite to the boring tools at the blanking end. Cooling liquid channels for cooling the boring tools at the blanking end are arranged on the tool shank and the tool head body.

[0006] In one embodiment, the chip removal groove extends along the axial direction of the tool head from the blanking end. One side wall of the chip removal groove is recessed to form a tool post installation position for installing the internal boring tool or the external boring tool. The side wall of the chip removal groove forming the tool post installation position faces the rotation direction of the tool head.

[0007] In one embodiment, the bottom surface of the chip removal groove extends obliquely downward from the surface of the tool head to the side wall forming the tool post installation position. A cooling liquid oblique flow hole is arranged on the bottom surface of the chip removal groove and is opposite to the tool post installation position. The cooling liquid oblique flow hole is communicated with the cooling liquid channel.

[0008] In one embodiment, the internal boring tool is detachably mounted on the corresponding tool rest mounting position through an internal tool rest, and the external boring tool is detachably mounted on the corresponding tool rest mounting position through an external tool rest. The internal tool rest and the external tool rest are respectively provided with an internal tool rest positioning angle and an external tool rest positioning angle relative to the tool rest mounting position on which they are mounted. The angular range of the internal tool rest positioning angle and the external tool rest positioning angle is 10° to 20°.

[0009] In one embodiment, a coolant inlet hole is provided at the end of the tool shank. The coolant channel includes a first channel provided on the tool shank and a plurality of second channels provided on the tool head for guiding the coolant from the first channel to the surface of the chip evacuation groove.

[0010] In one embodiment, a coolant vertical flow hole communicating with the second channel is provided on the surface of the tool head near the tool shank, and a coolant horizontal flow hole communicating with the second channel is provided at the material scooping end of the tool head. The coolant vertical flow hole and the coolant horizontal flow hole both correspond to the second channel one by one, and the coolant vertical flow hole and the coolant horizontal flow hole are respectively blocked by screws.

[0011] In one embodiment, two symmetrically distributed internal boring tools and two symmetrically distributed external boring tools are provided at the material scooping end of the tool head, and the internal boring tools and the external boring tools are evenly spaced.

[0012] In one embodiment, four centering blocks are detachably connected to the outer surface of the tool head at equal intervals around the outer circumference. The outer surface of the centering block is an arc surface, and the outer surfaces of the four centering blocks together define a cylindrical surface.

[0013] In one embodiment, two calibration planes are provided at intervals along the axial direction on the outer surface of the tool head, and the two calibration planes are in the same plane.

[0014] Based on another aspect of the present invention, a machining machine tool is provided, including the machining material scooping tool shank as described in any one of the above.

[0015] Compared with the prior art, for the machining material scooping tool shank and the machining machine tool provided by the present invention, the tool head is designed as a cylindrical tool head with an internal cavity and penetrating through the material scooping end. At least one internal boring tool and at least one external boring tool are provided at the material scooping end, and the boring tool and the external boring tool cooperate to form an annular cutting trajectory, so that a complete rod can be scooped out from a rod-shaped raw material. The scooped complete rod can be continuously used for production, better saving the processing cost and improving the economic benefit of production.

[0016] Other advantages of the present invention will be described in detail in the subsequent specific implementation part in conjunction with the drawings. Description of the Drawings

[0017] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0018] In the accompanying drawings:

[0019] Figure 1 is a three-dimensional structural diagram of an embodiment of a mechanical processing material extraction tool bar of the present utility model;

[0020] Figure 2 is Figure 1 a front-view angle structural diagram of the shown mechanical processing material extraction tool bar;

[0021] Figure 3 In (a) is Figure 1 a left-view angle structural diagram of the shown mechanical processing material extraction tool bar, and (b) is Figure 1 a right-view angle structural diagram of the shown mechanical processing material extraction tool bar;

[0022] Figure 4 is Figure 1 a structural sectional view of the shown mechanical processing material extraction tool bar;

[0023] Figure 5 is Figure 1 a structural schematic diagram of the material extraction end of the shown mechanical processing material extraction tool bar;

[0024] Figure 6 is Figure 1 a structural schematic diagram of the installation position on the shown mechanical processing material extraction tool bar;

[0025] Figure 7 In (a) and (b) are Figure 1 structural schematic diagrams of the inner tool rest in the shown mechanical processing material extraction tool bar, and (c) is a structural schematic diagram of the inner tool rest installed on the tool head;

[0026] Figure 8 In (a) is Figure 1 a structural schematic diagram of the outer tool rest in the shown mechanical processing material extraction tool bar, and (b) is a structural schematic diagram of the outer tool rest installed on the tool head;

[0027] Figure 9 In (a) is Figure 1 a structural schematic diagram of the centering block in the shown mechanical processing material extraction tool bar, and (b) is a side-view structural diagram of the centering block.

[0028] Description of reference numerals: 1 tool shank, 11 coolant inlet hole, 2 tool tip, 21 chip removal groove, 221 inner tool post mounting position, 223 outer tool post mounting position, 23 coolant inclined flow hole, 24 coolant vertical flow hole, 25 coolant horizontal flow hole, 3 internal boring tool, 31 inner tool post, 32 inner tool post positioning angle, 33 internal boring tool mounting groove, 34 inner tool post fixing counterbore, 4 external boring tool, 41 outer tool post, 42 outer tool post positioning angle, 43 external boring tool mounting groove, 44 outer tool post fixing counterbore, 5 coolant passage, 51 first passage, 52 second passage, 6 screw, 7 centering block, 71 centering block mounting position, 72 centering block fixing counterbore, 8 calibration plane. Detailed implementation mode

[0029] To further explain the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote the same components.

[0030] This embodiment provides a machining machine tool, which can be a lathe, a drill press or a boring machine, and includes a machining material-removing tool bar as Figure 1-9 shown. The machining material-removing tool bar includes a tool shank 1 and a tool tip 2. The tool tip 2 is a cylindrical tool tip with a cavity inside and penetrating the material-removing end. There are two symmetrically distributed internal boring tools 3 and two symmetrically distributed external boring tools 4 on the material-removing end, and the internal boring tools 3 and the external boring tools 4 are evenly spaced. The internal boring tools 3 and the external boring tools 4 cooperate to form an annular cutting trajectory. Four chip removal grooves 21 are correspondingly provided on the surface of the tool tip 2 opposite to the two internal boring tools 3 and the two external boring tools 4 at the material-removing end. The chip removal grooves 21 extend along the axial direction of the tool tip 2 from the material-removing end. One side wall of the chip removal groove 21 is recessed to form a tool post mounting position for mounting the internal boring tool 3 or the external boring tool 4. The side wall of the chip removal groove 21 forming the tool post mounting position faces the rotation direction of the tool tip 2. The bottom surface of the chip removal groove 21 extends obliquely downward from the surface of the tool tip 2 to the side wall forming the tool post mounting position. A coolant inclined flow hole 23 facing the tool post mounting position is opened on the bottom surface of the chip removal groove 21, and the coolant inclined flow hole 23 is communicated with the coolant passage 5.

[0031] Coolant channels 5 for cooling the internal boring tool 3 and the external boring tool 4 at the material extraction end are provided on the tool shank 1 and the tool head 2 body. Specifically, a coolant inlet hole 11 is provided at the end of the tool shank 1. The coolant inlet hole 11 is designed at the axial center position of the tool shank 1. The coolant channel 5 includes a first channel 51 provided on the tool shank 1 and four second channels 52 provided on the tool head 2 for guiding the coolant from the first channel 51 to the surface of the chip removal groove 21. A coolant vertical flow hole 24 communicating with the second channel 52 is provided on the surface of the tool head 2 close to the tool shank 1. A coolant horizontal flow hole 25 communicating with the second channel 52 is provided at the material extraction end of the tool head 2. The coolant vertical flow hole 24 and the coolant horizontal flow hole 25 both correspond to the second channel 52 one by one. The coolant vertical flow hole 24 communicates with the coolant inlet hole 11. The coolant horizontal flow hole 25 communicates with the coolant vertical flow hole 24. The coolant inclined flow hole 23 communicates with the coolant horizontal flow hole 25. Threaded holes are provided in both the coolant vertical flow hole 24 and the coolant horizontal flow hole 25. Tightening screws are used to block the coolant vertical flow hole 24 and the coolant horizontal flow hole 25, so that the coolant enters from the coolant inlet hole 11, is diverted to the coolant vertical flow hole 24, and then is diverted to the coolant horizontal flow hole 25. The coolant can only be ejected from the coolant inclined flow hole 23, directly facing the tool post blade mounting position.

[0032] When the machining material extraction tool bar of this embodiment is operating, since the internal boring tool 3 and the external boring tool 4 cooperate to form an annular cutting trajectory, the central part of the raw material will not be directly processed into waste chips. Instead, a complete cylindrical bar is extracted from the rod-shaped raw material, and the extracted complete cylindrical bar can be continuously used for production.

[0033] In this embodiment, an internal boring tool mounting groove 33 and an internal tool post fixing counterbore 34 are provided on the internal tool post 31. An external boring tool mounting groove 43 and an external tool post fixing counterbore 44 are provided on the external tool post 41. The internal boring tool 3 is installed on the internal tool post 31 by screws. The internal tool post 31 is detachably installed on the corresponding internal tool post mounting position 221 by screws. The external boring tool 4 is installed on the external tool post 41 by screws. The external tool post 41 is detachably installed on the corresponding external tool post mounting position 223 by screws. The internal tool post 31 is provided with an internal tool post positioning angle 32 corresponding to the installation angle of the internal tool post mounting position 221. The external tool post 41 is provided with an external tool post positioning angle 42 corresponding to the installation angle of the external tool post mounting position 223. The angle ranges of the internal tool post positioning angle 32 and the external tool post positioning angle 42 are 10° to 20°, which can ensure the accurate installation positions of the internal boring tool 3 and the external boring tool 4.

[0034] In this embodiment, four straightening blocks 7 are evenly spaced around the outer circumference on the outer surface of the cutter head 2 and are detachably connected. The outer surface of the straightening blocks 7 is an arc surface, and the outer surfaces of the four straightening blocks 7 jointly define a cylindrical surface to straighten the cutting tool rod in processing and ensure that a complete cylindrical bar is taken out from the rod-shaped raw material. Two calibration planes 8 are provided on the outer surface of the cutter head 2 along the axial interval. The two calibration planes 8 are located on the same plane and are used to calibrate the level of the cutting tool rod. When fixing the tool handle, if the level of the tool rod needs to be calibrated, a dial indicator can be used to perform a horizontal calibration on the set calibration plane 8, and a longitudinal horizontal calibration can be performed through the chip groove 21.

[0035] In other embodiments, the handle 1 may also be in the shape of a square column, a cone, or a tube.

[0036] The utility model discloses a mechanical processing blanking tool rod and a mechanical processing machine tool. The tool head is designed as a cylindrical tool head with an internal cavity and penetrating the blanking end. The blanking end is provided with at least one inner boring tool and at least one outer boring tool. The boring tool and the outer boring tool cooperate to form a circular cutting track. Complete bar materials can be blanked out from the rod-shaped raw materials. The blanked complete bar materials can be further used for production, which better saves the processing cost and improves the economic benefits of production.

[0037] The above description is only a specific implementation of the present invention. It should be pointed out that any changes or substitutions that can be easily thought of by technicians familiar with the field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention.

Claims

1. A machining tool bar, characterized in that: The invention comprises a tool handle (1) and a tool head (2), wherein the tool head (2) is a cylindrical tool head with a cavity therein and extending through a blanking end, wherein at least one inner boring tool (3) and at least one outer boring tool (4) are provided on the blanking end, wherein the inner boring tool (3) and the outer boring tool (4) cooperate to form a circular cutting track, wherein a chip removal groove (21) is provided on the surface of the tool head (2) corresponding to the boring tool at the blanking end, and a cooling liquid channel (5) for cooling the boring tool at the blanking end is provided on the tool handle (1) and the tool head (2) body.

2. The machining cutting tool bar according to claim 1, characterized in that: The chip groove (21) extends axially from the material removal end along the tool head (2), and a side wall of one side of the chip groove (21) is recessed to form a tool holder mounting position for mounting the inner boring tool (3) or the outer boring tool (4), and the side wall of the chip groove (21) forming the tool holder mounting position faces the rotation direction of the tool head (2).

3. The machining cutting tool bar according to claim 2, characterized in that: The bottom surface of the chip removal groove (21) extends obliquely downward from the surface of the tool head (2) to form a side wall of the tool holder mounting position, and a coolant oblique flow hole (23) facing the tool holder mounting position is provided on the bottom surface of the chip removal groove (21), and the coolant oblique flow hole (23) is connected to the coolant channel (5).

4. The machining cutting tool bar according to claim 2, characterized in that: The inner boring tool (3) is detachably mounted on the corresponding tool table mounting position via an inner tool table (31), and the outer boring tool (4) is detachably mounted on the corresponding tool table mounting position via an outer tool table (41). The inner tool table (31) and the outer tool table (41) are respectively provided with an inner tool table positioning angle (32) and an outer tool table positioning angle (42) relative to the tool table mounting position where they are installed. The angle range of the inner tool table positioning angle (32) and the outer tool table positioning angle (42) is 10° to 20°.

5. The machining cutting tool bar according to any one of claims 1 to 4, characterized in that: A coolant inlet hole (11) is provided at the end of the tool handle (1), and the coolant channel (5) comprises a first channel (51) provided on the tool handle (1) and a plurality of second channels (52) provided on the tool head (2) for guiding the coolant from the first channel (51) to the surface of the chip groove (21).

6. The machining cutting tool bar according to claim 5, characterized in that: A cooling liquid vertical flow hole (24) communicating with the second channel (52) is provided on a surface of the cutter head (2) close to the cutter handle (1), and a cooling liquid horizontal flow hole (25) communicating with the second channel (52) is provided at a material removal end of the cutter head (2). The cooling liquid vertical flow hole (24) and the cooling liquid horizontal flow hole (25) both correspond to the second channel (52) one by one, and the cooling liquid vertical flow hole (24) and the cooling liquid horizontal flow hole (25) are respectively blocked by screws (6).

7. The machining cutting tool bar according to any one of claims 1 to 4, characterized in that: The material-cutting end of the tool head (2) is provided with two symmetrically distributed inner boring cutters (3) and two symmetrically distributed outer boring cutters (4), and the inner boring cutters (3) and the outer boring cutters (4) are evenly spaced.

8. The machining cutting tool bar according to any one of claims 1 to 4, characterized in that: Four straightening blocks (7) are detachably connected to the outer surface of the cutter head (2) at even intervals around the outer circumference, the outer surface of the straightening blocks (7) being an arc surface, and the outer surfaces of the four straightening blocks (7) jointly define a cylindrical surface.

9. The machining cutting tool bar according to any one of claims 1 to 4, characterized in that: Two calibration planes (8) are provided on the outer surface of the cutter head (2) at intervals along the axial direction, and the two calibration planes (8) are located on the same plane.

10. A machining machine tool, characterized in that: It comprises a machining cutting tool rod as described in any one of claims 1 to 9.

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