Double-handle multi-cutting-edge ball-end cutter

Abstract

The utility model belongs to the technical field of ball-end cutters, particularly relates to a double-handle multi-cutting-edge ball-end cutter, and aims to solve the problems that a ball-end cutter is arranged at one end of an existing cutter handle, the ball-end cutter cannot be replaced in time when being damaged, and the machining efficiency of workpieces is affected, and the double-handle multi-cutting-edge ball-end cutter comprises a fixed cutter handle, mounting grooves are formed in the two ends of the fixed cutter handle, a quick detaching mechanism used for quickly detaching the ball-end cutter is arranged on the outer surface of the fixed cutter handle, sealing mechanisms used for sealing the ball-end cutter are arranged on the two sides of the fixed cutter handle, and a heat dissipation mechanism used for dissipating heat of the ball-end cutter is arranged on the outer wall of the fixed cutter handle. One end of the fixed cutter handle is taken down from a machine tool, then the damaged end of the fixed cutter handle is fixedly connected with the machine tool, the ball-end cutter body at the other end of the fixed cutter handle is used for cutting, then the double-handle effect is achieved, and the ball-end cutter body can be detached by screwing off the fixing bolt on the fixed cutter handle and matching with the mounting groove.

Description

Technical Field

[0001] The utility model relates to a multi-edged ball-end cutter, in particular to a double-handled multi-edged ball-end cutter, belonging to the technical field of ball-end cutters. Background Art

[0002] A multi-edge ball-nose cutter is a tool with a radiused head and multiple cutting edges distributed throughout the blade. These cutting edges can be equally or unequally spaced to accommodate different machining requirements. A multi-edge ball-nose cutter typically consists of a straight shank, cutting edges, and a ball-end. This multi-edge design enables the tool to cut in multiple directions simultaneously during a single cut, significantly improving cutting efficiency.

[0003] In the prior art, a ball-end mill with three clearance angles, such as that disclosed in announcement number CN212495619U, includes a shank and a cutting edge. The shank is connected to the cutting edge, and the cutting edge is provided with a spiral blade and a chip groove. The chip groove extends to the front center of the cutting edge. The spiral blade is provided with a first clearance face, a second clearance face, and a third clearance face in sequence. The first clearance face, the second clearance face, and the third clearance face respectively form a first clearance angle, a second clearance angle, and a third clearance angle with the cutting surface. The first clearance face, the second clearance face, and the third clearance face respectively form a first clearance angle, a second clearance angle, and a third clearance angle with the cutting surface, so that the cutting edge of the ball-end mill is formed with two layers of cutting edges. The double-layer cutting edge arrangement enhances the cutting ability of the ball-end mill, prevents the cutting edge of the ball-end mill from chipping due to the impact force from the workpiece when processing a workpiece with strong toughness, and thus extends the service life of the ball-end mill.

[0004] Although the above technical solution can prevent the cutting edge of the ball end mill from chipping due to the impact force from the workpiece and thus extend the service life of the ball end mill, when in use, the ball end cutter is only provided at one end of the shank. When the ball end cutter is damaged, it cannot be replaced in time, affecting the processing efficiency of the workpiece. In view of this, a double-shank multi-edge ball end mill is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a double-handle multi-edge ball end cutter to solve the problem that a ball end cutter provided at one end of a tool handle cannot be replaced in time when the ball end cutter is damaged, thus affecting the processing efficiency of the workpiece.

[0006] The utility model achieves the above-mentioned object through the following technical solutions: a double-handled multi-edged ball-end cutter, comprising a fixed handle, both ends of which are provided with mounting grooves, an outer surface of the fixed handle is provided with a quick-release mechanism for quickly removing the ball-end cutter, both sides of the fixed handle are provided with sealing mechanisms for sealing the ball-end cutter, and an outer wall of the fixed handle is provided with a heat dissipation mechanism for dissipating heat from the ball-end cutter;

[0007] The quick-release mechanism includes two fixing bolts, both of which are installed on the outer surface of the fixed knife handle. The ends of the fixing bolts are connected to connectors that are plugged into the mounting slots, and the outer walls of the connectors are provided with limiting holes.

[0008] As a further solution of the present invention: a ball-end cutter body is fixed to one end of the connecting piece, and a chip removal groove is provided on the outer surface of the ball-end cutter body.

[0009] As a further solution of the present invention: a cutting blade is installed at the end of the ball-end cutter body.

[0010] As a further solution of the present invention, a fixing screw threadedly connected to the ball head cutter body is installed on the outer wall of the cutting blade.

[0011] As a further solution of the present invention: the sealing mechanism includes a sealing groove, and two sealing grooves are provided. The two sealing grooves are respectively opened on both sides of the fixed knife handle.

[0012] As a further solution of the present invention: the interiors of the two sealing grooves are both connected with sealing rings fixedly connected to the ball-end cutter body.

[0013] As a further solution of the present invention: the heat dissipation mechanism includes a heat conducting member, two heat conducting members are provided, both of the heat conducting members are fixed to the outer wall of the fixed knife handle, and heat sinks are fixed to the outer surfaces of the two heat conducting members.

[0014] The beneficial effects of the present invention are as follows: by removing one end of the fixed tool handle from the machine tool, then connecting and fixing the damaged end to the machine tool, and using the ball head cutter body at the other end for cutting processing, a double-handle effect is achieved; by unscrewing the fixing bolt on the fixed tool handle, the ball head cutter body can be disassembled with the cooperation of the mounting groove; through the heat conducting member provided on the fixed tool handle, since the fixed tool handle generates heat when cutting the workpiece, the heat is transferred to the heat conducting member through the connecting member, and the heat sink absorbs the heat of the heat conducting member, and when the fixed tool handle is driven to rotate, the heat sink will be driven to rotate synchronously, thereby allowing the heat sink to quickly contact with the air, thereby achieving the effect of auxiliary cooling. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed handle of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed handle of the utility model;

[0018] Figure 4 For this utility model Figure 1 Enlarged view of point A in the middle.

[0019] In the figure: 1. Fixed tool holder; 2. Mounting groove; 3. Fixing bolt; 31. Connecting piece; 32. Limiting hole; 4. Ball head tool body; 5. Chip groove; 6. Cutting blade; 7. Fixing screw; 8. Sealing groove; 81. Sealing ring; 9. Heat conducting piece; 91. Heat sink. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0021] like Figures 1 to 4 As shown, a double-handled multi-edge ball-end cutter includes a fixed handle 1, both ends of which are provided with mounting grooves 2, the outer surface of the fixed handle 1 is provided with a quick-release mechanism for quickly removing the ball-end cutter, both sides of the fixed handle 1 are provided with sealing mechanisms for sealing the ball-end cutter, and the outer wall of the fixed handle 1 is provided with a heat dissipation mechanism for dissipating heat from the ball-end cutter;

[0022] The quick-release mechanism includes a fixing bolt 3, two fixing bolts 3 are provided, and the two fixing bolts 3 are both installed on the outer surface of the fixed tool holder 1. The ends of the fixing bolts 3 are connected with connectors 31 plugged into the mounting groove 2. The outer wall of the connector 31 is provided with a limiting hole 32. A ball head cutter body 4 is fixed to one end of the connector 31. A chip removal groove 5 is provided on the outer surface of the ball head cutter body 4. A cutting blade 6 is installed at the end of the ball head cutter body 4. A fixing screw 7 threadedly connected to the ball head cutter body 4 is installed on the outer wall of the cutting blade 6. The fixed tool holder 1 is connected to the output end of the machine tool to achieve fixation, and the fixed tool holder 1 is driven by the machine tool to rotate, thereby driving The movable ball head cutter body 4 rotates so that the cutting blade 6 cuts the workpiece. The chip groove 5 provided on the ball head cutter body 4 can discharge the waste chips generated during the workpiece processing to the outside. When the ball head cutter body 4 is damaged, one end of the fixed tool handle 1 can be removed from the machine tool, and then the damaged end can be connected and fixed to the machine tool, and the other end of the ball head cutter body 4 can be used for cutting, thereby achieving a double-handle effect. By unscrewing the fixing bolt 3 on the fixed tool handle 1, the fixing bolt 3 and the limiting hole 32 on the connecting part 31 are separated, and the fixation of the ball head cutter body 4 is released. With the cooperation of the mounting groove 2, the ball head cutter body 4 can be disassembled. Example 2

[0023] In addition to all the technical features of Example 1, this embodiment also includes: a sealing mechanism including a sealing groove 8, two sealing grooves 8 are provided, and the two sealing grooves 8 are respectively opened on both sides of the fixed tool holder 1, and the interior of the two sealing grooves 8 are connected to a sealing ring 81 fixedly connected to the ball head cutter body 4; a heat dissipation mechanism including a heat conducting member 9, two heat conducting members 9 are provided, and the two heat conducting members 9 are fixed to the outer wall of the fixed tool holder 1, and the outer surfaces of the two heat conducting members 9 are fixed with heat sinks 91, and the provided sealing grooves 8 and sealing rings 81 can play a role in positioning and sealing. Through the heat conducting member 9 provided on the fixed tool holder 1, heat is generated when the fixed tool holder 1 cuts the workpiece, and the heat is transferred to the heat conducting member 9 through the connecting member 31, and the heat sink 91 absorbs the heat of the heat conducting member 9. When the fixed tool holder 1 is driven to rotate, the heat sink 91 will be driven to rotate synchronously, so that the heat sink 91 is quickly in contact with the air, thereby achieving the effect of auxiliary cooling. By unscrewing the fixing screw 7, the cutting blade 6 can be disassembled and replaced.

[0024] Working principle: Before using the double-handle multi-edge ball-end cutter, first connect and fix the ball-end cutter to the output end of the driving machine tool, and then fix it by connecting the fixed tool handle 1 to the output end of the machine tool. The fixed tool handle 1 is driven by the machine tool to rotate, and then the ball-end cutter body 4 is driven to rotate, so that the cutting blade 6 cuts the workpiece. The chip groove 5 provided on the ball-end cutter body 4 can discharge the waste chips generated during the workpiece processing to the outside. When the ball-end cutter body 4 is damaged, one end of the fixed tool handle 1 can be removed from the machine tool, and then the damaged end can be connected and fixed to the machine tool, and the ball-end cutter body 4 at the other end can be used for cutting, thereby achieving the effect of double handles. By unscrewing the fixing bolt 3 on the fixed tool handle 1, The fixing bolt 3 and the limiting hole 32 on the connecting member 31 are separated to release the fixation of the ball head cutter body 4. With the cooperation of the mounting groove 2, the ball head cutter body 4 can be disassembled. The provided sealing groove 8 and sealing ring 81 can play the role of positioning and sealing. The heat conducting member 9 provided on the fixed tool handle 1 generates heat when the fixed tool handle 1 cuts the workpiece, and the heat is transferred to the heat conducting member 9 through the connecting member 31. The heat of the heat conducting member 9 is absorbed by the heat sink 91. When the fixed tool handle 1 is driven to rotate, the heat sink 91 is driven to rotate synchronously, thereby making the heat sink 91 quickly contact with the air, thereby achieving the effect of auxiliary cooling. By unscrewing the fixing screw 7, the cutting blade 6 can be disassembled and replaced for easy use.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-handled multi-edged ball-end cutter, comprising a fixed handle (1), characterized in that: Both ends of the fixed knife handle (1) are provided with mounting grooves (2), the outer surface of the fixed knife handle (1) is provided with a quick-release mechanism for quickly releasing the ball-end knife, both sides of the fixed knife handle (1) are provided with a sealing mechanism for sealing the ball-end knife, and the outer wall of the fixed knife handle (1) is provided with a heat dissipation mechanism for dissipating heat from the ball-end knife; The quick-release mechanism comprises a fixing bolt (3), two fixing bolts (3) are provided, and both fixing bolts (3) are mounted on the outer surface of the fixed knife handle (1). The ends of the fixing bolts (3) are connected to a connector (31) plug-connected to the mounting groove (2), and a limiting hole (32) is provided on the outer wall of the connector (31).

2. The double-handled multi-edge ball-end cutter according to claim 1, characterized in that: A ball-end cutter body (4) is fixed to one end of the connecting piece (31), and a chip removal groove (5) is provided on the outer surface of the ball-end cutter body (4).

3. The double-handled multi-edge ball-end cutter according to claim 2, characterized in that: A cutting blade (6) is installed at the end of the ball-end cutter body (4).

4. The double-handled multi-edge ball-end cutter according to claim 3, characterized in that: The outer wall of the cutting blade (6) is provided with a fixing screw (7) threadedly connected to the ball head cutter body (4).

5. The double-handled multi-edge ball-end cutter according to claim 1, characterized in that: The sealing mechanism comprises a sealing groove (8), two sealing grooves (8) are provided, and the two sealing grooves (8) are respectively opened on both sides of the fixed knife handle (1).

6. The double-handled multi-edge ball-end cutter according to claim 5, characterized in that: The interiors of the two sealing grooves (8) are both connected to sealing rings (81) that are fixedly connected to the ball-end cutter body (4).

7. The double-handled multi-edge ball-end cutter according to claim 1, characterized in that: The heat dissipation mechanism comprises a heat conducting member (9), two heat conducting members (9) are provided, both of the heat conducting members (9) are fixed to the outer wall of the fixed shank (1), and heat dissipation fins (91) are fixed to the outer surfaces of the two heat conducting members (9).

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