CBN (Cubic Boron Nitride) chamfering cutter with fastening mechanism

Abstract

The utility model belongs to the technical field of chamfering cutters, particularly relates to a CBN (cubic boron nitride) chamfering cutter with a fastening mechanism, and aims to solve the problems that the joint of the CBN chamfering cutter is inconvenient to fix, the connection of a rotating column is easy to loosen, and the use efficiency of a device is seriously influenced. The following scheme is provided: the CBN chamfering cutter comprises a fixed cutter handle, one end of the fixed cutter handle is connected with a chamfering cutter body, and the other end of the fixed cutter handle is connected with a fastening mechanism; a fastening assembly used for fastening a cutter is arranged on the outer wall of the fixed cutter handle, a cooling assembly used for cooling the cutter is arranged on one side of the fixed cutter handle, and a quick detaching mechanism used for detaching the cutter is arranged on the other side of the fixed cutter handle. The fastening assembly comprises a movable rod, the movable rod is arranged in the fixed knife handle, the limiting pipe can be pushed to extend out of the fixed knife handle to make contact with the inner wall of the clamping piece in the process that the spring extends and resets, then the fastening effect is achieved, the situation that the fixed knife handle slips can be effectively reduced, and the service life of the fixed knife handle is prolonged. Therefore, loosening is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a CBN chamfering tool, in particular to a CBN chamfering tool with fastening mechanism belongs to chamfering tool technical field. BACKGROUND

[0002] The CBN chamfering tool is a cutter made of cubic boron nitride material, which is mainly used for machining chamfering parts of various materials to improve the quality and processing efficiency of workpieces. CBN is the second hardest material in nature, only next to diamond. Due to the high hardness and wear resistance of CBN cutter, it can provide high-precision chamfering processing, meet the requirements of workpiece size accuracy and surface finish, significantly improve the processing efficiency and reduce the production cost.

[0003] In the prior art, such as the one disclosed in the patent No. CN215091109U, a CBN chamfering tool with angle adjusting structure, which includes a handle, one end of the handle is symmetrically installed with a fan-shaped disc, two fan-shaped discs are fixedly installed with a positioning column, the upper fan-shaped disc is provided with an arc-shaped hole in the middle, one side of the upper fan-shaped disc is provided with a positioning hole coaxial with the positioning column, the positioning hole is installed with a fixed sleeve inside, and the fixed sleeve is installed with a first fixed bolt fixed with the fan-shaped disc. It can realize precise angle adjustment of the cutter bar, and the cutter bar is convenient and fast to disassemble and assemble, has good use effect, and greatly improves the efficiency of mechanical processing.

[0004] Although the above technical solution can realize precise angle adjustment of the cutter bar, and the cutter bar is convenient and fast to disassemble and assemble, it is inconvenient to fix the connection, the connection of the rotating column is easy to loosen, which seriously affects the use efficiency of the device. Therefore, a CBN chamfering tool with fastening mechanism is provided to overcome the above defects. INVENTION CONTENTS

[0005] The utility model discloses a CBN chamfering tool with fastening mechanism to solve the problem of inconvenient fixing of the connection, easy loosening of the rotating column connection and serious influence on the use efficiency of the device.

[0006] The utility model discloses a CBN chamfering tool with fastening mechanism to solve the problem of inconvenient fixing of the connection, easy loosening of the rotating column connection and serious influence on the use efficiency of the device.

[0007] The fastening assembly comprises a movable rod arranged in the interior of the fixed handle, a connecting rod fixed to the lower end of the movable rod, a limiting tube fixed to the end of the connecting rod, a spring installed in the interior of the limiting tube, and a fixed rod connected to the lower end of the spring and fixedly connected with the fixed handle.

[0008] As a further scheme of the utility model: the cooling assembly comprises a water inlet pipe, the water inlet pipe is communicated on one side of the fixed handle, and a fixed bearing fixedly connected with the inner wall of the fixed handle is arranged on the outer wall of the water inlet pipe.

[0009] As a further scheme of the utility model: the end of the water inlet pipe is fixedly connected with a limiting plate, and the outer surface of the limiting plate is rotatably connected with a limiting piece fixed in the interior of the fixed handle.

[0010] As a further scheme of the utility model: the quick release mechanism comprises a connecting block connected to the other side of the fixed handle.

[0011] As a further scheme of the utility model: a flow cavity is formed in the interior of the connecting block.

[0012] As a further scheme of the utility model: a fixing hole is formed in the outer surface of the connecting block, and a fixing bolt threadedly connected with the fixed handle is insertedly connected in the interior of the fixing hole.

[0013] As a further scheme of the utility model: a water outlet hole is formed in one end of the chamfering tool body and communicated with the flow cavity.

[0014] The utility model has the advantages that the limiting tube is pushed out to contact the inner wall of the clamping piece outside the fixed handle in the spring elongation reset process, thereby playing a fastening role, the slippage of the fixed handle can be effectively reduced, thereby preventing loosening; water outside can enter the fixed handle through the water inlet pipe, flow through the flow cavity to the water outlet hole, thereby cooling the chamfering tool body, the fixing bolt on the fixed handle is unscrewed, the fixing bolt is separated from the fixing hole on the connecting block, and the chamfering tool body can be individually disassembled and replaced. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a sectional structure schematic view of the fixed handle of the utility model;

[0017] Figure 3 It is a sectional structure schematic view of the fixed handle of the utility model; Figure 2 It is an enlarged view of A in the utility model;

[0018] Figure 4The utility model discloses a cross section structure schematic diagram of limit tube.

[0019] In the figure: 1, fixed handle; 2, chamfer cutter body; 3, movable rod; 31, connecting rod; 32, limit tube; 33, spring; 34, fixed rod; 4, water inlet pipe; 41, fixed bearing; 42, limit plate; 43, limiting piece; 5, connecting block; 51, flow cavity; 52, fixed hole; 53, fixed bolt; 6, water outlet hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. Embodiment one

[0021] As Figures 1 to 4 shown, a CBN chamfer cutter with fastening mechanism, including fixed handle 1, the one end of fixed handle 1 is connected with chamfer cutter body 2, the outer wall of fixed handle 1 is equipped with the fastening assembly for the fastening of tool, one side of fixed handle 1 is equipped with the cooling assembly for the cooling of tool, the other side of fixed handle 1 is equipped with quick release mechanism for the disassembly of tool;

[0022] The fastening assembly includes movable rod 3, movable rod 3 is placed in the inside of fixed handle 1, the lower end of movable rod 3 is fixed with connecting rod 31, the terminal of connecting rod 31 is fixed with limit tube 32, the inside of limit tube 32 is installed with spring 33, the lower end of spring 33 is connected with fixed rod 34 fixedly connected with fixed handle 1, the cooling assembly includes water inlet pipe 4, water inlet pipe 4 is communicated at one side of fixed handle 1, the outer wall of water inlet pipe 4 is sleeved with fixed bearing 41 fixedly connected with the inner wall of fixed handle 1, the terminal of water inlet pipe 4 is fixed with limit plate 42, the outer surface of limit plate 42 is rotatably connected with limiting piece 43 fixed in the inside of fixed handle 1, by connecting the clamping piece of fixed handle 1 and machine tool output shaft, then assembling, and before assembling, can first manually press movable rod 3, under the cooperation of connecting rod 31, limit tube 32 can be driven to retract to the inside of fixed handle 1, limit tube 32 simultaneously makes the spring 33 inside to compress, when fixed handle 1 is completely connected with the clamping piece, limit tube 32 is in the inside of clamping piece, loosen movable rod 3 at this time, in the process of spring 33 elongation reset, limit tube 32 is pushed to the outside of fixed handle 1 and the inner wall of clamping piece contact, then play the role of fastening, can effectively reduce the slippage of fixed handle 1, then prevent loosening. Embodiment two

[0023] In addition to comprising all the technical features in Embodiment One, the embodiment further comprises: the quick-release mechanism comprises a connecting block 5 connected to the other side of the fixed tool shank 1, the inside of the connecting block 5 is provided with a flow cavity 51, the outer surface of the connecting block 5 is provided with a fixing hole 52, the inside of the fixing hole 52 is inserted and connected with a fixing bolt 53 threadedly connected with the fixed tool shank 1, one end of the chamfering tool body 2 is provided with a water outlet hole 6 in communication with the flow cavity 51, the water inlet pipe 4 is connected with the external water delivery pipe, the driving device drives the chamfering tool body 2 to rotate, thereby chamfering the workpiece, the external water can enter the fixed tool shank 1 through the water inlet pipe 4, and then flow to the water outlet hole 6 through the flow cavity 51, thereby cooling the chamfering tool body 2, the fixed bearing 41 can ensure that the fixed tool shank 1 does not rotate the water inlet pipe 4 when rotating, and the limiting plate 42 and the limiting piece 43 can limit the rotation of the water inlet pipe 4, by unscrewing the fixing bolt 53 on the fixed tool shank 1, the fixing bolt 53 and the fixing hole 52 on the connecting block 5 are separated, the fixing of the connecting block 5 is released, and the chamfering tool body 2 can be disassembled separately. Embodiment Three

[0024] In addition to comprising all the technical features in Embodiment One, the embodiment further comprises:

[0025] Working principle: before using the CBN chamfering tool with the fastening mechanism, the chamfering tool is connected with the output shaft of the machine tool, the fixed tool shank 1 is connected with the clamping piece of the machine tool output shaft, and then assembled, and before assembly, the movable rod 3 can be pressed manually, under the cooperation of the connecting rod 31, the limiting tube 32 can be retracted into the fixed tool shank 1, and at the same time, the limiting tube 32 pushes the spring 33 inside to be compressed, when the fixed tool shank 1 is completely connected with the clamping piece, the limiting tube 32 is inside the clamping piece, at this time, the movable rod 3 is loosened, in the process of the spring 33 extending and resetting, the limiting tube 32 is pushed out to the outside of the fixed tool shank 1 and contacts the inner wall of the clamping piece, thereby playing a fastening role, which can effectively reduce the slippage of the fixed tool shank 1, thereby preventing loosening, the fixed rod 34 can play a guiding role, the water inlet pipe 4 is connected with the external water delivery pipe, the driving device drives the chamfering tool body 2 to rotate, thereby chamfering the workpiece, the external water can enter the fixed tool shank 1 through the water inlet pipe 4, and then flow to the water outlet hole 6 through the flow cavity 51, thereby cooling the chamfering tool body 2, the fixed bearing 41 can ensure that the fixed tool shank 1 does not rotate the water inlet pipe 4 when rotating, and the limiting plate 42 and the limiting piece 43 can limit the rotation of the water inlet pipe 4, by unscrewing the fixing bolt 53 on the fixed tool shank 1, the fixing bolt 53 and the fixing hole 52 on the connecting block 5 are separated, the fixing of the connecting block 5 is released, and the chamfering tool body 2 can be disassembled separately, which is convenient for replacement.

[0026] 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.

[0027] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present 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 a person skilled in the art can understand.

Claims

1. A CBN chamfering tool having a fastening mechanism comprising a fixed tool holder (1), characterized in that: One end of the fixed cutter handle (1) is connected with a chamfered cutter body (2), an outer wall of the fixed cutter handle (1) is provided with a fastening assembly for fastening the cutter, one side of the fixed cutter handle (1) is provided with a cooling assembly for cooling the cutter, the other side of the fixed cutter handle (1) is provided with a quick release mechanism for disassembling the cutter. The fastening assembly comprises a movable rod (3), the movable rod (3) is arranged in the fixed cutter handle (1), a connecting rod (31) is fixed to the lower end of the movable rod (3), a limit tube (32) is fixed to the end of the connecting rod (31), a spring (33) is mounted in the limit tube (32), the lower end of the spring (33) is connected with a fixed rod (34) fixedly connected with the fixed cutter handle (1).

2. The CBN chamfering tool having a fastening mechanism according to claim 1, characterized in that: The cooling assembly comprises a water inlet pipe (4), the water inlet pipe (4) is communicated on one side of the fixed cutter handle (1), and a fixed bearing (41) is fixedly connected with the inner wall of the fixed cutter handle (1) on the outer wall of the water inlet pipe (4).

3. The CBN chamfering tool having a fastening mechanism according to claim 2, characterized in that: The end of the water inlet pipe (4) is fixed with a limit plate (42), and the outer surface of the limit plate (42) is rotatably connected with a limiting piece (43) fixed in the fixed cutter handle (1).

4. The CBN chamfering tool having a fastening mechanism according to claim 1, characterized in that: The quick release mechanism comprises a connecting block (5), and the connecting block (5) is connected to the other side of the fixed cutter handle (1).

5. The CBN chamfering tool having a fastening mechanism according to claim 4, characterized in that: A flow cavity (51) is formed in the connecting block (5).

6. The CBN chamfering tool having a fastening mechanism according to claim 4, wherein: A fixing hole (52) is formed in the outer surface of the connecting block (5), and a fixing bolt (53) is insertedly connected in the fixing hole (52) and is screwed with the fixed cutter handle (1).

7. The CBN chamfering tool having a fastening mechanism according to claim 5, wherein: One end of the chamfered cutter body (2) is provided with a water outlet hole (6) communicated with the flow cavity (51).

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