Assembly type double-end ball cutter with superhard coating

Abstract

The utility model belongs to the technical field of ball cutters, particularly relates to a double-end ball cutter with an assembly type superhard coating, and aims to solve the problems that the conventional milling cutter is of an integral structure, the whole body needs to be replaced when a cutter body is damaged, the waste is caused, and the practicability is poorer, the following scheme is provided: the double-end ball cutter comprises a ball cutter handle, one end of the ball cutter handle is connected with a milling mechanism used for machining a workpiece, and the other end of the ball cutter handle is provided with a cooling mechanism used for cooling the ball cutter. The milling mechanism comprises a ball cutter body, and a blade is installed at the tail end of the ball cutter body. According to the ball cutter, the blade can be detached by screwing off the fixing screw, the blade can be conveniently and independently replaced, then the situation that the whole ball cutter is replaced is avoided, the ball cutter body can be detached under the cooperation of the clamping groove and the connecting piece by screwing off the fixing bolt to enable the fixing bolt and the limiting hole to be separated, and the practicability is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double -end ball cutter, concretely is a double -end ball cutter of assembly type superhard coating belongs to ball cutter technical field. BACKGROUND

[0002] Double -end ball cutter is a kind of special cutting tool, its characteristics are with two spherical cutting parts, this design makes double -end ball cutter have unique advantage in mechanical processing.Double -end ball cutter is widely used in mechanical manufacturing, automobile manufacturing, aerospace and other industrial fields.In these fields, double -end ball cutter is mainly used for processing precision parts and complex shape workpieces, such as bearing, gear, engine parts etc.The spherical cutting surface can ensure the smoothness and precision of workpiece surface, improve the overall quality of product.

[0003] In prior art, such as the double-edge ball head alloy milling cutter disclosed in the announcement No.CN214291036U, it includes connecting rod, alloy cutter body, chip flute, double-edge ball cutter head, titanium nitride coating, nickel-chromium alloy layer, chromium nitride coating, alloy matrix layer and chemical adhesive layer.It protects the internal structure through its own alloy metal layer structure, and strengthens the hardness of the milling cutter, the chemical adhesive layer ensures the stability of the overall structure of the milling cutter, and ensures that the chemical adhesive layer structure can withstand the spraying of other coating high temperature, and prevents high temperature waste penetration damage.

[0004] Although the above technical scheme protects the internal structure through its own alloy metal layer structure, and strengthens the hardness of the milling cutter, when using, since the milling cutter is a one-piece structure, when the cutter body is damaged, the whole needs to be replaced, leading to waste, poor practicability, therefore, a double -end ball cutter of assembly type superhard coating is provided to overcome the above defects. INVENTION CONTENTS

[0005] The utility model provides a double -end ball cutter of assembly type superhard coating to overcome the above defects to solve the problem that the milling cutter is a one-piece structure, and the whole needs to be replaced when the cutter body is damaged, leading to waste, poor practicability.

[0006] The utility model realizes the above-mentioned purpose by the following technical scheme: a double -end ball cutter of assembly type superhard coating, including ball cutter handle, one end of ball cutter handle is connected with the milling mechanism for processing workpiece, the other end of ball cutter handle is equipped with cooling mechanism for cooling ball cutter;

[0007] The milling mechanism includes ball cutter body, the end of ball cutter body is installed with blade, the inside of blade is installed with two groups of fixed screw and ball cutter body is connected with screw thread, the outer surface of ball cutter body is coated with wear -resisting coating, one side of ball cutter body is equipped with quick release mechanism for disassembling ball cutter.

[0008] As a further scheme of the utility model: the quick release mechanism includes a connecting piece, the connecting piece is fixed on one side of the ball cutter body, a clamping groove is connected to the inner wall of the ball cutter handle on one side of the connecting piece.

[0009] As a further scheme of the utility model: a limiting hole is arranged on the outer surface of the connecting piece, a fixing bolt is inserted and connected in the limiting hole and is screwed with the ball cutter handle.

[0010] As a further scheme of the utility model: a sealing gasket is fixed on the side wall of the ball cutter body.

[0011] As a further scheme of the utility model: the cooling mechanism includes a water inlet pipe, the water inlet pipe is communicated at the other end of the ball cutter handle, a conveying cavity is arranged in the ball cutter handle and is communicated with the water inlet pipe.

[0012] As a further scheme of the utility model: a fixed bearing is sleeved on the outer surface of the water inlet pipe, a fixed ring is fixed on the outer wall of the fixed bearing and is fixedly connected with the inner wall of the ball cutter handle, and a limiting block is fixed at the end of the water inlet pipe.

[0013] As a further scheme of the utility model: a limiting groove is arranged on the outer surface of the limiting block, a sealing ring is slidably connected on the inner wall of the limiting groove and is fixedly connected with the inner wall of the ball cutter handle, and a water spraying hole is arranged on the outer surface of the ball cutter body and is communicated with the conveying cavity.

[0014] The utility model discloses the beneficial effect is: through the fixed screw is screwed down, can dismantle the blade, the blade is conveniently replaced alone, and then reduces the overall replacement condition of the ball cutter, through the fixed bolt is screwed down, makes the fixed bolt and the limiting hole separate, under the cooperation of the clamping groove and the connecting piece, the ball cutter body can be dismantled, and the practicability is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the three-dimensional structure schematic diagram of the ball cutter handle of the utility model;

[0017] Figure 3 It is the cross section structure schematic diagram of the ball cutter handle of the utility model;

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the utility modelFigure 3 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Ball cutter holder; 2. Ball cutter body; 21. Blade; 22. Fixing screw; 23. Wear-resistant coating; 3. Sealing gasket; 4. Connector; 41. Slot; 42. Limiting hole; 43. Fixing bolt; 5. Water inlet pipe; 51. Conveying chamber; 52. Fixed bearing; 53. Fixing ring; 54. Limiting block; 55. Limiting groove; 56. Sealing ring; 6. Water spray hole. Detailed Implementation

[0020] 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

[0021] like Figures 1 to 4 As shown, a double-ended ball end mill with an assembled superhard coating includes a ball end mill 1, one end of which is connected to a milling mechanism for machining a workpiece, and the other end of which is provided with a cooling mechanism for cooling the ball end mill.

[0022] The milling mechanism includes a ball cutter body 2, with a cutting insert 21 mounted at its end. Two sets of fixing screws 22, threadedly connected to the ball cutter body 2, are installed inside the cutting insert 21. The outer surface of the ball cutter body 2 is coated with a wear-resistant coating 23. A quick-release mechanism for disassembling the ball cutter is provided on one side of the ball cutter body 2. The quick-release mechanism includes a connector 4, which is fixed to one side of the ball cutter body 2. A groove 41 formed on the inner wall of the ball cutter shank 1 is inserted into one side of the connector 4. A limiting hole 42 is formed on the outer surface of the connector 4, and a [missing information - likely a device or component] is inserted into the limiting hole 42. The ball cutter body 2 is fixed with a sealing gasket 3 on its side wall by a fixing bolt 43 threadedly connected to the ball cutter holder 1. By unscrewing the fixing screw 22, the blade 21 can be disassembled, making it convenient to replace the blade 21 individually, thereby reducing the need to replace the entire ball cutter. By unscrewing the fixing bolt 43, the fixing bolt 43 and the limiting hole 42 are separated. With the cooperation of the slot 41 and the connector 4, the ball cutter body 2 can be disassembled, further improving its practicality. The sealing gasket 3 provided on the ball cutter body 2 can play a sealing role. Example 2

[0023] In addition to including all the technical features in Embodiment One, the cooling mechanism in this embodiment includes a water inlet pipe 5 connected to the other end of the ball cutter handle 1, a delivery cavity 51 is formed in the ball cutter handle 1 and communicates with the water inlet pipe 5, a fixed bearing 52 is sleeved on the outer surface of the water inlet pipe 5, a fixed ring 53 is fixedly connected to the inner wall of the ball cutter handle 1, a limiting block 54 is fixed to the end of the water inlet pipe 5, a limiting groove 55 is formed in the outer surface of the limiting block 54, a sealing ring 56 is slidably connected to the inner wall of the ball cutter handle 1, a water injection hole 6 is formed in the outer surface of the ball cutter body 2 and communicates with the delivery cavity 51, and the external water delivery pipe and the water inlet pipe 5 are connected, so that clean water enters the delivery cavity 51, and the fixed bearing 52 arranged in the fixed ring 53 can ensure that the water inlet pipe 5 does not rotate when the ball cutter handle 1 rotates, ensuring normal delivery of clean water, and the limiting block 54 can play a limiting role, and the limiting groove 55 and the sealing ring 56 can play a sealing role, the delivered clean water is sprayed out through the water injection hole 6, thereby cooling the ball cutter body 2, and avoiding that the high temperature affects the machining effect.

[0024] Working principle: Before using the assembled double-head ball cutter with superhard coating, the ball cutter is assembled, the ball cutter handle 1 is connected and fixed with the output shaft of the external driving device, the driving device drives the ball cutter handle 1 to rotate, thereby driving the ball cutter body 2 to rotate, so that the blade 21 machines the workpiece, and the wear-resistant coating 23 can play a wear-resistant effect of the ball cutter, the blade 21 can be disassembled by unscrewing the fixing screw 22, which facilitates separate replacement of the blade 21, thereby reducing the replacement of the entire ball cutter, the ball cutter body 2 can be disassembled by unscrewing the fixing bolt 43, so that the fixing bolt 43 and the limiting hole 42 are separated, and the clamping groove 41 and the connecting piece 4 cooperate to further improve the practicability, the sealing gasket 3 arranged on the ball cutter body 2 can play a sealing role, the external water delivery pipe and the water inlet pipe 5 are connected, so that clean water enters the delivery cavity 51, and the fixed bearing 52 arranged in the fixed ring 53 can ensure that the water inlet pipe 5 does not rotate when the ball cutter handle 1 rotates, ensuring normal delivery of clean water, and the limiting block 54 can play a limiting role, and the limiting groove 55 and the sealing ring 56 can play a sealing role, the delivered clean water is sprayed out through the water injection hole 6, thereby cooling the ball cutter body 2, and avoiding that the high temperature affects the machining effect.

[0025] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0026] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A double-ended ball cutter with an assembled superhard coating, comprising a ball cutter shank (1), characterized in that: One end of the ball cutter holder (1) is connected to a milling mechanism for machining the workpiece, and the other end of the ball cutter holder (1) is provided with a cooling mechanism for cooling the ball cutter. The milling mechanism includes a ball cutter body (2), with a cutting tool (21) installed at the end of the ball cutter body (2). Two sets of fixing screws (22) that are threadedly connected to the ball cutter body (2) are installed inside the cutting tool (21). The outer surface of the ball cutter body (2) is coated with a wear-resistant coating (23). A quick-release mechanism for disassembling the ball cutter is provided on one side of the ball cutter body (2).

2. The double-ended ball end mill with an assembled superhard coating according to claim 1, characterized in that: The quick-release mechanism includes a connector (4), which is fixed to one side of the ball cutter body (2). One side of the connector (4) is connected to a slot (41) opened on the inner wall of the ball cutter handle (1).

3. The double-ended ball end mill with an assembled superhard coating according to claim 2, characterized in that: The outer surface of the connector (4) has a limiting hole (42), and a fixing bolt (43) that is threadedly connected to the ball handle (1) is inserted into the limiting hole (42).

4. The double-ended ball end mill with an assembled superhard coating according to claim 1, characterized in that: A sealing gasket (3) is fixed to the side wall of the ball cutter body (2).

5. The double-ended ball end mill with an assembled superhard coating according to claim 1, characterized in that: The cooling mechanism includes a water inlet pipe (5), which is connected to the other end of the ball cutter handle (1). The ball cutter handle (1) has a delivery cavity (51) that is connected to the water inlet pipe (5).

6. A double-ended ball end mill with an assembled superhard coating according to claim 5, characterized in that: The outer surface of the water inlet pipe (5) is fitted with a fixed bearing (52), and the outer wall of the fixed bearing (52) is fixed with a fixing ring (53) that is fixedly connected to the inner wall of the ball cutter shank (1). The end of the water inlet pipe (5) is fixed with a limit block (54).

7. A double-ended ball end mill with an assembled superhard coating according to claim 6, characterized in that: The outer surface of the limiting block (54) is provided with a limiting groove (55), and the inner wall of the limiting groove (55) is slidably connected with a sealing ring (56) that is fixedly connected to the inner wall of the ball cutter handle (1). The outer surface of the ball cutter body (2) is provided with a water spray hole (6) that communicates with the conveying cavity (51).

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