Cutter assembly for U-shaped groove machining

Abstract

The utility model discloses a cutter assembly for machining a U-shaped groove, which relates to the technical field of numerical control machine tool machining cutters and comprises a cutter body and a milling cutter body. The cutter is characterized in that the cutter main body is fixedly connected with a milling cutter shaft; the lower end of the cutter main body is fixedly connected with a first shaft block and a second shaft block, the first shaft block is fixedly connected with the second shaft block, and the milling cutter shaft penetrates through the first shaft block and the second shaft block; one end of the milling cutter shaft is provided with a slot, one end of the milling cutter body is provided with a plug matched with the slot, and the non-cutting end of the milling cutter body is provided with a circular groove; a fixing assembly sleeves the outer side of the milling cutter body; the fixing assembly can fix the upper end of the milling cutter body. According to the milling cutter disclosed by the utility model, the circular groove and the balls are arranged, so that the non-cutting end of the milling cutter is pressed by the balls due to the interference fit between the balls and the rolling grooves in the working process of the milling cutter, and the vibration generated at the non-axial end of the milling cutter is inhibited, thereby reducing the vibration of the milling cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machine tool processing tools, in particular to a tool assembly for U-shaped groove processing. Background Art

[0002] In current industrial manufacturing, the U-shaped groove cutting operation of the workpiece usually relies on precision milling machine equipment. In this process, the milling machine, as the core equipment, ensures that the milling cutter cuts the workpiece surface efficiently and accurately by precisely controlling its motion trajectory and cutting force. As a key cutting tool, the milling cutter, driven by the spindle of the milling machine, gradually cuts on the workpiece along the preset trajectory, thereby gradually shaping the required U-shaped groove.

[0003] like Figure 7 As shown, when processing the existing workpiece (1), it is necessary to process the required U-shaped groove on the partition surface (2), and the distance between the end surface (3) of the existing workpiece and the partition surface is relatively long. When processing, the length of the milling cutter will also increase accordingly. However, as the length of the milling cutter increases, the long axis is prone to bending and deformation, which will cause uneven centrifugal force during high-speed rotation, resulting in swing and instability of the milling cutter. At the same time, due to the large inertial force of the long axis, the milling cutter head with relatively small inertia is easily affected by the torsional force during operation, causing vibration during material processing, thereby affecting the processing quality and processing effect. Utility Model Content

[0004] The utility model aims to provide a tool assembly for machining a U-shaped groove, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A tool assembly for U-shaped groove processing comprises a tool body and a milling cutter body; a milling cutter shaft is fixedly connected to the tool body; a first shaft block and a second shaft block are fixedly connected to the lower end of the tool body, the first shaft block and the second shaft block are fixedly connected, and the milling cutter shaft passes through the first shaft block and the second shaft block; a slot is provided at one end of the milling cutter shaft, a plug matching the slot is provided at one end of the milling cutter body, and a circular groove is provided on the non-cutting end of the milling cutter body; a fixing assembly is sleeved on the outer side of the milling cutter body; the fixing assembly can fix the upper end of the milling cutter body.

[0007] By setting up a fixing component, during installation, the fixing component is first sleeved on the milling cutter body, and the non-cutting end of the milling cutter body is inserted into the slot through a plug; the non-cutting end of the milling cutter body is limited and fixed by the fixing component, thereby reducing the length of the shaft end, and when the milling cutter body vibrates, the fixing component can reduce the vibration of the milling cutter body.

[0008] A further improvement of the technical solution of the utility model lies in that: the fixing assembly includes a fastening ring, the inner wall of the fastening ring is fixedly provided with a circular groove of the same size as the milling cutter body, and the number of the circular grooves is 3; the fastening ring is sleeved on the milling cutter body, and the circular groove on the milling cutter body cooperates with the circular groove on the fastening ring to form a groove body, in which a plurality of ball bearings are arranged, and a mounting structure is fixedly provided on the fastening ring, and the mounting structure is used to fix the fastening ring and the second shaft block.

[0009] The above technical scheme is adopted, in which a circular groove and a ball are set. During installation, the ball is installed in the circular groove, and the fastening ring and the milling cutter body can be fixed together through the cooperation between the ball and the circular groove. Then the fastening ring and the second shaft block are fixed through the installation structure. When the milling cutter is in operation, because the cooperation between the ball and the rolling groove is an interference fit, the non-cutting end of the milling cutter will be subjected to the pressure of the ball, thereby suppressing the vibration generated by the milling cutter at the non-axial end, thereby reducing the vibration of the milling cutter, and the circular groove on the milling cutter and the ball are rollingly connected, so the normal rotation of the milling cutter is less affected, and the normal cutting of the milling cutter will not be affected.

[0010] A further improvement of the technical solution of the utility model is that: the mounting structure includes a mounting block, the mounting block is fixedly connected to the outer side of the fastening ring, a first screw hole is opened on the mounting block, a second screw hole with the same position and size as the first screw hole is opened on the second shaft block, and a bolt is threadedly connected to the screw hole.

[0011] The above technical solution is adopted, in which screw holes and bolts are provided, and the screw holes and bolt structures are used. During installation, the mounting block and the second shaft block can be firmly fixed as one by simply passing the bolts through the screw holes on the mounting block and tightening them onto the second shaft block. This fastening method not only ensures the firmness of the installation, but also improves work efficiency. When the tool needs to be replaced, the operation is also simple and quick. Simply use the appropriate tools to unscrew the bolts to easily separate the fixing assembly from the second shaft block. This design makes the tool replacement process easy, without the need for complicated steps or tools, saving time and labor costs. At the same time, it also provides convenience for subsequent maintenance and maintenance work.

[0012] A further improvement of the technical solution of the utility model is that a limiting groove is provided at the upper end of the fastening ring, a limiting head is fixedly connected to the second shaft block, and the shape of the limiting head matches the shape of the notch of the limiting groove.

[0013] The above technical solution is adopted. In this solution, the torsional force when the milling cutter is working is relatively large. During the working process of the tool, since the cutting operation is often accompanied by a large torsional force, these forces may have an adverse effect on the bolt, thereby affecting its stability and service life. The limit head and the limit groove match each other. When the bolt fixes the mounting block to the second shaft block, the limit head will be embedded in the limit groove to form a tight fit. Through the cooperation of the limit head and the limit groove, the force on the bolt under the action of the torsional force is reduced, and the bolt is prevented from being deformed due to uneven force.

[0014] A further improvement of the technical solution of the utility model is that a gasket is provided on the inner wall of the circular groove on the fastening ring, and the gasket is made of rubber.

[0015] The above-mentioned technical solution is adopted. In this solution, a rubber gasket is set. When the milling cutter body vibrates, the gasket is made of rubber, so when subjected to force, the gasket will produce elastic deformation to absorb and disperse the energy of external vibration or impact, thereby reducing the vibration force of the milling cutter body, protecting the stability of the equipment and extending its service life, protecting the equipment and reducing the noise level.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a tool assembly for U-groove processing. A circular groove and a ball are provided. During installation, the ball is installed in the circular groove. The fastening ring and the milling cutter body can be fixed together through the cooperation between the ball and the circular groove. Then, the fastening ring and the second shaft block are fixed through the installation structure. When the milling cutter is in operation, since the cooperation between the ball and the rolling groove is an interference fit, the non-cutting end of the milling cutter will be subjected to the pressure of the ball, thereby suppressing the vibration of the milling cutter at the non-axial end, thereby reducing the vibration of the milling cutter. Moreover, the circular groove on the milling cutter and the ball are rollingly connected, so the normal rotation of the milling cutter is less affected, and the normal cutting of the milling cutter will not be affected.

[0018] 2. The utility model provides a tool assembly for U-shaped groove processing. The torsional force of the milling cutter is relatively large when working. By setting a limit head and a limit groove, the limit head and the limit groove cooperate with each other to reduce the force on the bolt, prevent the bolt from deforming and increase the service life. A rubber gasket is also set to absorb the vibration generated by the milling cutter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall side view structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the fixing ring structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the first shaft block structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second shaft block of the utility model;

[0025] Figure 6 This is a schematic diagram of the milling cutter body structure of the utility model;

[0026] Figure 7 It is a schematic diagram of the existing workpiece structure of the utility model;

[0027] In the figure: 1. existing workpiece; 2. partition surface; 3. workpiece end face; 4. tool body; 5. milling cutter shaft; 6. first shaft block; 7. second shaft block; 8. slot; 9. plug; 10. circular groove; 11. fastening ring; 12. ball; 13. mounting block; 14. bolt; 15. limit groove; 16. limit head. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the embodiments:

[0029] Example 1

[0030] like Figure 1-7 As shown, the utility model provides a tool assembly for U-shaped groove processing, including a tool body 4 and a milling cutter body; a milling cutter shaft 5 is fixedly connected to the tool body 4; a first shaft block 6 and a second shaft block 7 are fixedly connected to the lower end of the tool body 4, the first shaft block 6 and the second shaft block 7 are fixedly connected, and the milling cutter shaft 5 passes through the first shaft block 6 and the second shaft block 7; a slot 8 is provided at one end of the milling cutter shaft 5, and a plug 9 matching the slot 8 is provided at one end of the milling cutter body, and a circular groove 10 is provided on the non-cutting end of the milling cutter body; a fixing component is sleeved on the outer side of the milling cutter body; the fixing component can fix the upper end of the milling cutter body.

[0031] In this embodiment, when processing the U-shaped groove, because the long axis of the milling cutter is prone to bending and deformation, it will cause uneven centrifugal force when rotating at high speed, resulting in the swing and instability of the milling cutter. At the same time, due to the large inertial force of the long axis, the milling cutter head with relatively small inertia is easily affected by the torsional force during operation, causing vibration during material processing; by setting a fixed component, the fixed component is first sleeved on the milling cutter body during installation, and the non-cutting end of the milling cutter body is plugged into the slot 8 through the plug 9; the non-cutting end of the milling cutter body is limited and fixed by the fixed component, thereby reducing the length of the shaft end, and when the milling cutter body vibrates, the fixed component can reduce the vibration of the milling cutter body.

[0032] In this embodiment, preferably, the fixing assembly includes a fastening ring 11, the inner wall of the fastening ring 11 is fixedly provided with a circular groove 10 of the same size as the milling cutter body, and the number of the circular grooves 10 is 3; the fastening ring 11 is sleeved on the milling cutter body, and the circular groove 10 on the milling cutter body cooperates with the circular groove 10 on the fastening ring 11 to form a groove body, and a plurality of balls 12 are provided in the groove body, and the fastening ring 11 is fixedly provided with an installation structure, and the installation structure is used to fix the fastening ring 11 and the second shaft block 7.

[0033] By setting the circular groove 10 and the ball 12, the ball 12 is installed in the circular groove 10 during installation, and the fastening ring 11 and the milling cutter body can be fixed together through the cooperation between the ball 12 and the circular groove 10, and then the fastening ring 11 and the second shaft block 7 are fixed through the installation structure. When the milling cutter is in operation, because the cooperation between the ball 12 and the rolling groove is an interference fit, the non-cutting end of the milling cutter will be subjected to the pressure of the ball 12, thereby suppressing the vibration of the milling cutter generated at the non-axial end, thereby reducing the vibration of the milling cutter, and the circular groove 10 and the ball 12 on the milling cutter are rollingly connected, so the normal rotation of the milling cutter is less affected, and the normal cutting of the milling cutter will not be affected.

[0034] Preferably, the mounting structure includes a mounting block 13, which is fixedly connected to the outer side of the fastening ring 11, and a first screw hole is formed on the mounting block 13, and a second screw hole having the same position and size as the first screw hole is formed on the second shaft block 7, and a bolt 14 is threadedly connected to the screw hole.

[0035] Through the screw hole and the bolt 14 structure. During installation, simply pass the bolt 14 through the screw hole on the mounting block 13 and tighten it to the second shaft block 7, so that the mounting block 13 and the second shaft block 7 can be firmly fixed as one. This fastening method not only ensures the firmness of the installation, but also improves work efficiency. When the tool needs to be replaced, the operation is also simple and quick. Just use the appropriate tool to unscrew the bolt 14, and the fixing assembly can be easily separated from the second shaft block 7. This design makes the tool replacement process easy, without complicated steps or tools, saving time and labor costs. At the same time, it also provides convenience for subsequent maintenance and maintenance work.

[0036] Example 2

[0037] like Figure 3 and Figure 5 As shown, based on the embodiment, the utility model provides a technical solution: a limit groove 15 is provided on the upper end of the fastening ring 11, and a limit head 16 is fixedly connected to the second shaft block 7, and the shape of the limit head 16 matches the shape of the notch of the limit groove 15.

[0038] In this embodiment, the torsional force of the milling cutter is relatively large when it is working. During the working process of the tool, since the cutting operation is often accompanied by a large torsional force, these forces may have an adverse effect on the bolt 14, thereby affecting its stability and service life. The limit head 16 and the limit groove 15 match each other. When the bolt 14 fixes the mounting block 13 to the second shaft block 7, the limit head 16 will be embedded in the limit groove 15 to form a tight fit. Through the cooperation of the limit head 16 and the limit groove 15, the force exerted on the bolt 14 under the action of the torsional force is reduced, and the bolt 14 is prevented from being deformed due to uneven force.

[0039] Example 3

[0040] On the basis of the embodiment, the utility model provides a technical solution: preferably, a gasket is provided on the inner wall of the circular groove 10 on the fastening ring 11, and the material of the gasket is rubber.

[0041] In this embodiment, when the milling cutter body vibrates during operation, the gasket is made of rubber material, and its unique elastic properties enable it to deform when subjected to external force, thereby effectively absorbing and dispersing external vibration or impact energy. This mechanism significantly reduces the transmission of vibration force to other parts of the milling cutter body, thereby greatly improving stability and effectively extending its service life. In addition, the use of rubber gaskets also helps to reduce the noise level of the equipment. While the vibration is reduced, the noise generated by the vibration is also reduced.

[0042] The working principle of the tool assembly for U-groove processing will be described in detail below.

[0043] like Figure 1-7 As shown, during installation, the fastening ring 11 is first sleeved on the milling cutter body, and the non-cutting end of the milling cutter body is inserted into the slot 8 through the plug 9; by setting the circular groove 10 and the ball 12, the ball 12 is installed in the circular groove 10 during installation, and the fastening ring 11 and the milling cutter body can be fixed together through the cooperation between the ball 12 and the circular groove 10, and then during fixation, the mounting block 13 and the second shaft block 7 are fixed together by the bolt 14, and the fixing assembly can be separated from the second shaft block 7 by unscrewing the bolt 14 when replacing the tool, and by setting the limit head 16 and the limit groove 15, the limit head 16 and the limit groove 15 cooperate to reduce the force exerted on the bolt 14, prevent the bolt 14 from deformation and increase the service life; when the milling cutter is in operation, the cooperation between the ball 12 and the rolling groove is an interference fit, and the non-cutting end of the milling cutter will be subjected to the pressure of the ball 12, thereby suppressing the vibration generated by the milling cutter at the non-axial end, thereby reducing the vibration of the milling cutter.

[0044] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A tool assembly for U-shaped groove machining, comprising a tool body (4) and a milling cutter body; characterized in that: A milling cutter shaft (5) is fixedly connected to the tool body (4); a first shaft block (6) and a second shaft block (7) are fixedly connected to the lower end of the tool body (4); the first shaft block (6) and the second shaft block (7) are fixedly connected, and the milling cutter shaft (5) passes through the first shaft block (6) and the second shaft block (7); a slot (8) is provided at one end of the milling cutter shaft (5), a plug (9) matching the slot (8) is provided at one end of the milling cutter body, and a circular groove (10) is provided on the non-cutting end of the milling cutter body; a fixing component is sleeved on the outer side of the milling cutter body; the fixing component can fix the upper end of the milling cutter body.

2. A U-shaped groove machining tool assembly according to claim 1, characterized in that: The fixing assembly comprises a fastening ring (11), the inner wall of which is fixedly provided with a circular groove (10) of the same size as the milling cutter body, the fastening ring (11) is sleeved on the milling cutter body, the circular groove (10) on the milling cutter body and the circular groove (10) on the fastening ring (11) cooperate to form a groove body, a plurality of balls (12) are arranged in the groove body, and a mounting structure is fixedly provided on the fastening ring (11), the mounting structure being used to fixedly connect the fastening ring (11) and the second shaft block (7).

3. A U-shaped groove machining tool assembly according to claim 2, characterized in that: The mounting structure comprises a mounting block (13), the mounting block (13) being fixedly connected to the outer side of the fastening ring (11), the mounting block (13) being provided with a first screw hole, the second shaft block (7) being provided with a second screw hole having the same position and size as the first screw hole, and a bolt (14) being threadedly connected to the screw hole.

4. A U-shaped groove machining tool assembly according to claim 3, characterized in that: A limiting groove (15) is provided at the upper end of the fastening ring (11), and a limiting head (16) is fixedly connected to the second shaft block (7), wherein the shape of the limiting head (16) matches the shape of the notch of the limiting groove (15).

5. A U-shaped groove machining tool assembly according to claim 4, characterized in that: A gasket is provided on the inner wall of the circular groove (10) on the fastening ring (11), and the gasket is made of rubber.

6. A U-shaped groove machining tool assembly according to claim 5, characterized in that: The number of the circular grooves (10) is 3.

Images