Efficient milling cutter for aviation titanium alloy material

Abstract

The utility model belongs to the technical field of cutters, particularly relates to an efficient milling cutter for aviation titanium alloy materials, and provides the following scheme aiming at the problems that a cutter head and a cutter bar of an existing cutter with an inner cooling channel are inconvenient to disassemble and assemble, and the cutter head is inconvenient to replace independently: the efficient milling cutter comprises a cutter bar and a cutter head movably arranged above the cutter bar, a connecting assembly is arranged at the joint of the tool bit and the tool bar; the connecting assembly comprises a communicating pipe fixed to the bottom of the tool bit, the communicating pipe is sleeved with a sealing plate, a sealing spring is fixedly connected between the sealing plate and the tool bit, the communicating pipe is sleeved with the sealing spring, and a liquid outlet hole communicated with the communicating pipe is formed in the tool bit. When the tool bit and the tool bar are installed, the communicating pipe can be inserted into the rubber sleeve and embedded into the conical plate, the inner cooling channel is communicated with the liquid outlet hole of the tool bit through the communicating pipe, and normal liquid outlet during cutting is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of milling cutters of aviation material, specifically to a kind of high-efficiency milling cutter for aviation titanium alloy material, belong to cutter technical field. BACKGROUND

[0002] Titanium alloy is alloy with titanium as base and other elements, with high heat strength and corrosion resistance, its excellent performance characteristics make plane and engine can work in more extreme environment, reduce weight, improve thrust-to-weight ratio and fuel efficiency, and be widely used in aviation industry.

[0003] Aviation titanium alloy material is widely used in aviation field due to its high strength, low density and good corrosion resistance, due to its high hardness, low thermal conductivity and high chemical activity, cutting tool capable of reducing cutting heat needs to be selected in cutting process.

[0004] In prior art, the titanium alloy high-efficiency internal cooling type milling cutter disclosed in publication No. CN202461639U includes cutter body with cooling liquid channel, cutter body front end has semi-closed chip removal groove, closed chip removal groove front end has inclined groove with inclination angle, inclined groove connects front blade, and rear blade is installed in relative position of front blade, due to cutter with internal cooling channel, lubrication, cooling and chip removal conditions of cutting area are improved, at the same time, cutting heat is taken away by chip and cooling liquid, which makes material and cutter not easy to stick together.

[0005] But in actual use, due to high hardness of aviation titanium alloy material, cutter head is more prone to wear than cutter bar, cutter needs to be replaced after a period of use, and perfect cutter bar cannot be reused, which causes waste, for this, cutter can be set as detachable structure, cutter head is replaced alone, but for cutter with internal cooling channel, internal cooling channel in cutter head and cutter bar is connected, which leads to poor connection of internal cooling channel in cutter head and cutter bar during cutter head replacement, and affects cooling effect. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of high-efficiency milling cutters for aviation titanium alloy material to solve the problem that the cutter with internal cooling channel is inconvenient cutter head cutter bar dismounting, cutter head is replaced alone.

[0007] The utility model realizes the above-mentioned purposes by the following technical solutions: a kind of high-efficiency milling cutter for aviation titanium alloy material, including cutter bar, and cutter head movably installed above cutter bar, connection component is arranged at the connecting place of cutter head and cutter bar;

[0008] The connecting assembly comprises a communicating pipe fixed at the bottom of the cutter head, the outside of the communicating pipe is sleeved with a sealing plate, a sealing spring is fixedly connected between the sealing plate and the cutter head, the sealing spring is sleeved at the outside of the communicating pipe, the inside of the cutter head is provided with a liquid outlet hole communicated with the communicating pipe;

[0009] The inside of the cutter rod is provided with an internal cooling channel, and a conical plate is fixedly arranged in the internal cooling channel, the top of the conical plate is provided with a hole matched with the communicating pipe, and a rubber sleeve is fixedly arranged above the conical plate.

[0010] As a further scheme of the utility model, the inner diameter of the rubber sleeve is smaller than the outer diameter of the communicating pipe, a supporting plate is fixedly arranged at the outside of the rubber sleeve, and the supporting plate is fixed on the inner wall of the cutter rod.

[0011] As a further scheme of the utility model, the left and right sides of the communicating pipe are provided with connecting rods, and a bolt head is fixedly arranged in the connecting rod.

[0012] As a further scheme of the utility model, the top end face of the cutter rod is provided with a connecting jack matched with the connecting rod, and a screw penetrates through one side of the connecting jack, the screw is screwed with the bolt head, and the cutter rod is detachably connected with the cutter head through the connecting rod and the connecting jack, so that the cutter head can be conveniently replaced.

[0013] As a further scheme of the utility model, the connecting rod penetrates in the inside of the connecting jack, the communicating pipe penetrates in the inside of the rubber sleeve and the conical plate, the cooling liquid can be conveyed to the position of the conical plate from the internal cooling channel, and is collected in the inside of the communicating pipe through the conical plate, and the communicating pipe is embedded in the inside of the conical plate when being inserted.

[0014] As a further scheme of the utility model, the top of the cutter head is provided with milling grooves, and a chip removal groove is arranged between the two milling grooves, the milling grooves can realize milling of the aviation titanium alloy material, and the chip removal groove can discharge the waste chips.

[0015] As a further scheme of the utility model, one side of the milling groove is connected with a milling blade through a bolt, the surface of the cutter rod is provided with four clamping grooves at the lower end, and the clamping grooves are equidistantly and uniformly distributed along the surface of the cutter rod, the cutter rod can be installed on the power output end of the milling equipment through the clamping grooves, and the milling blade can be connected with the milling groove through the screw, so that the milling blade can be conveniently replaced.

[0016] The utility model discloses the beneficial effect is:

[0017] 1. With the connection components provided, when installing the cutter head and cutter shank, the connecting pipe can be inserted into the inside of the rubber sleeve and embedded in the tapered plate. The connecting pipe allows the internal cooling channel to communicate with the liquid outlet of the cutter head, enabling normal liquid discharge during cutting.

[0018] 2. The connection components allow for the installation and removal of the cutter head and cutter shank, facilitating the replacement of the cutter head as needed. Simultaneously, the milling inserts on the cutter head can be detached from the milling slot, allowing for the replacement of milling inserts of different sizes as required. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the tool holder and the tool head when separated.

[0021] Figure 3 This is a cross-sectional structural diagram of the tool holder of this utility model;

[0022] Figure 4 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0023] In the diagram: 1. Tool holder; 2. Tool head; 3. Connecting assembly; 301. Connecting rod; 302. Bolt head; 303. Connecting socket; 304. Connecting pipe; 305. Sealing plate; 306. Sealing spring; 307. Support plate; 308. Rubber sleeve; 4. Chip removal groove; 5. Milling insert; 6. Liquid outlet; 7. Clamping groove; 8. Milling groove; 9. Internal cooling channel; 10. Tapered plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] like Figures 1 to 4 As shown, a high-efficiency milling cutter for aerospace titanium alloy materials includes a cutter shank 1 and a cutter head 2 movably mounted above the cutter shank 1. A connecting component 3 is provided at the connection between the cutter head 2 and the cutter shank 1.

[0026] The connecting assembly 3 comprises a communication pipe 304 fixed at the bottom of the tool head 2, the outer part of the communication pipe 304 is sleeved with a sealing plate 305, the sealing plate 305 is fixedly connected with the tool head 2, the inner part of the sealing plate 305 is sleeved with a sealing spring 306, the inner part of the tool head 2 is provided with a liquid outlet hole 6 communicated with the communication pipe 304;

[0027] The inner part of the tool bar 1 is provided with an inner cooling channel 9, the inner part of the inner cooling channel 9 is fixedly provided with a conical plate 10, the top of the conical plate 10 is provided with a hole matched with the communication pipe 304, the upper part of the conical plate 10 is fixedly provided with a rubber sleeve 308, when the tool head 2 and the tool bar 1 are installed, the communication pipe 304 can be inserted into the inner part of the rubber sleeve 308 and embedded in the conical plate 10, the inner cooling channel 9 and the liquid outlet hole 6 of the tool head 2 are communicated through the communication pipe 304, so that the normal liquid outlet during cutting is realized, the tool bar 1 and the tool head 2 are made of superhard material, so that the cutting of aviation titanium alloy material is facilitated. Embodiment two

[0028] In addition to comprising all the technical features in embodiment one, the embodiment comprises the following:

[0029] The inner diameter of the rubber sleeve 308 is smaller than the outer diameter of the communication pipe 304, the outer part of the rubber sleeve 308 is fixedly provided with a supporting plate 307, and the supporting plate 307 is fixed on the inner wall of the tool bar 1, because the inner diameter of the rubber sleeve 308 is smaller than the outer diameter of the communication pipe 304, when the communication pipe 304 is inserted into the rubber sleeve 308, the rubber sleeve 308 is in a sunken state, and the communication pipe 304 is sealed by the rubber sleeve 308.

[0030] The left and right sides of the communication pipe 304 are provided with connecting rods 301, and the inner part of the connecting rods 301 is fixedly provided with bolt heads 302, the bolt heads 302 can be used to install screws, so as to facilitate the fixing of the connecting rods 301.

[0031] The top end face of the tool bar 1 is provided with a connecting jack 303 matched with the connecting rods 301, and a screw penetrates through one side of the connecting jack 303, the screw is threadedly connected with the bolt head 302, the tool bar 1 is detachably connected with the tool head 2 through the connecting rods 301 and the connecting jack 303, so as to facilitate the replacement of the tool head 2. Embodiment three

[0032] In addition to comprising all the technical features in embodiment one, the embodiment comprises the following:

[0033] The connecting rods 301 penetrate into the inner part of the connecting jack 303, the communication pipe 304 penetrates into the inner part of the rubber sleeve 308 and the conical plate 10, the cooling liquid can be delivered to the position of the conical plate 10 from the inner cooling channel 9, and is collected into the inner part of the communication pipe 304 through the conical plate 10, when the communication pipe 304 is inserted, it is embedded in the inner part of the conical plate 10.

[0034] The top of the tool head 2 is provided with milling grooves 8, and a chip removal groove 4 is arranged between the two groups of milling grooves 8, the milling grooves 8 can realize milling of the aviation titanium alloy material, and the chip removal groove 4 can remove the waste chips.

[0035] One side of the milling groove 8 is connected with a milling blade 5 through a bolt, four clamping grooves 7 are arranged on the surface of the tool bar 1, and the clamping grooves 7 are evenly distributed along the surface of the tool bar 1, the tool bar 1 can be installed on the power output end of the milling equipment through the clamping grooves 7, and the milling blade 5 can be connected with the milling groove 8 through a screw, so that the milling blade 5 is convenient to replace.

[0036] Working principle: when the high-efficiency milling cutter for aviation titanium alloy material is used, the tool head 2 is connected with the tool bar 1 through the connecting assembly 3, the connecting rod 301 is inserted into the inside of the connecting hole 303, then the screw is inserted into the connecting hole on the side of the tool bar 1 and connected with the bolt head 302, at this time, the communication pipe 304 is inserted into the inside of the rubber sleeve 308, the rubber sleeve 308 is in a sunken state, the sealing plate 305 is tightly attached to the supporting plate 307 and extrudes the sealing spring 306 inward, under the elastic force of the sealing spring 306, the supporting plate 307 is driven to move downward, the rubber sleeve 308 is limited, and the rubber sleeve 308 is prevented from protruding upward due to the impact of the cooling liquid, since the communication pipe 304 is embedded in the tapered plate 10, the inner cooling channel 9 and the liquid outlet hole 6 of the tool head 2 are connected with each other through the communication pipe 304, normal liquid outlet during cutting is realized, the tool bar 1 can be installed on the power output end of the milling equipment through the clamping groove 7, the tool bar 1 is rotated to drive the tool head 2 to rotate, and the aviation titanium alloy material is cut through the milling groove 8.

[0037] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A high efficiency milling cutter for aerospace titanium alloy materials, characterized in that: The utility model provides a kind of cutting tool, including cutter bar (1), and the cutter head (2) movably mounted above cutter bar (1), the connecting assembly (3) is provided at the connecting place of cutter head (2) with cutter bar (1); The connecting assembly (3) includes a communication pipe (304) fixed at the bottom of the cutter head (2), the outside of the communication pipe (304) is sleeved with a sealing plate (305), and the sealing plate (305) is fixedly connected with a sealing spring (306) between the cutter head (2), the sealing spring (306) is sleeved outside the communication pipe (304), the inside of the cutter head (2) is provided with a liquid outlet hole (6) communicated with the communication pipe (304); The inside of the cutter bar (1) is provided with an internal cooling channel (9), and the internal cooling channel (9) is fixedly provided with a conical plate (10), the top of the conical plate (10) is provided with a hole matched with the communication pipe (304), and the conical plate (10) is fixedly provided with a rubber sleeve (308) above.

2. The high-efficiency milling cutter for aeronautical titanium alloy material according to claim 1, characterized in that: The inner diameter of the rubber sleeve (308) is smaller than the outer diameter of the communication pipe (304), the outside of the rubber sleeve (308) is fixedly provided with a support plate (307), and the support plate (307) is fixed on the inner wall of the cutter bar (1).

3. The high efficiency milling cutter for aeronautical titanium alloy material according to claim 2, characterized in that: The left and right sides of the communication pipe (304) are provided with connecting rods (301), and the connecting rods (301) are fixedly provided with bolt heads (302) inside.

4. The high efficiency milling cutter for aeronautical titanium alloy material according to claim 3, characterized in that: The top end surface of the cutter bar (1) is provided with a connecting jack (303) matched with the connecting rod (301), and a screw penetrates one side of the connecting jack (303), and the screw is threadedly connected with the bolt head (302).

5. The high efficiency milling cutter for aeronautical titanium alloy material according to claim 4, characterized in that: The connecting rod (301) penetrates the inside of the connecting jack (303), and the communication pipe (304) penetrates the inside of the rubber sleeve (308) and the conical plate (10).

6. The high efficiency milling cutter for aeronautical titanium alloy material according to claim 1, characterized in that: The top of the cutter head (2) is provided with milling grooves (8), and a chip removal groove (4) is arranged between the two groups of milling grooves (8).

7. The high efficiency milling cutter for aeronautical titanium alloy material according to claim 6, characterized in that: One side of the milling groove (8) is connected with a milling blade (5) by a bolt, the surface of the cutter bar (1) is provided with four clamping grooves (7) at the lower end, and the clamping grooves (7) are evenly distributed along the surface of the cutter bar (1).

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