Crankshaft cutting machining-based cutting drill convenient for chip removal

Abstract

The utility model belongs to the technical field of cutting drills, particularly relates to a cutting drill convenient for chip removal based on crankshaft cutting machining, and solves the problems that in the long-time use process of the cutting drill, a gap is possibly generated at the joint of the cutting drill and the cutting drill, so that the cutting drill vibrates during cutting, the machining quality of a workpiece is influenced, and even the workpiece is possibly damaged. According to the technical scheme, the milling cutter comprises a mounting base, a milling cutter bar is movably mounted at the lower end of the mounting base, a cutter bar mounting groove is formed in the joint of the mounting base and the milling cutter bar, the cutter bar mounting groove is formed in the mounting base, and a rubber ring mounting groove is formed above the cutter bar mounting groove; a first rubber ring is mounted on the outer surface of the rubber ring mounting groove in an attached mode, and a cutter bar limiting groove is fixedly formed in the upper portion of the rubber ring mounting groove. According to the utility model, the vibration possibly generated in the cutting process is greatly reduced, and the cutting stability and the machining precision are improved.

Description

Technical Field

[0001] The utility model relates to a crankshaft machining cutting drill, in particular to a cutting drill which is convenient for chip removal and is used for crankshaft machining, and belongs to the technical field of cutting drills. Background Art

[0002] The crankshaft is a key transmission component, and its cutting drill processing accuracy and surface quality have an important impact on the overall performance. The cutting drill removes excess metal from the crankshaft workpiece and, under the premise of controlling productivity and cost, ensures that the crankshaft obtains geometric accuracy, dimensional accuracy and surface quality that meet the design and process requirements.

[0003] However, most of the existing cutting drills are of an integrated structure, and the drill bit will wear out after long-term use. The drill bit and the drill shank are integrated, so when the drill bit is replaced, the shank needs to be replaced together, which easily causes a waste of resources.

[0004] A metal cutting drill bit with announcement number CN220862814U includes a connecting tube, an end head is provided on one side of the connecting tube, a fixing frame is fixedly installed on the outer surface of the end head, and the fixing frame is fixedly connected to the connecting tube. In actual work, when the end head is worn out due to long-term use and needs to be replaced, the end head can be replaced alone without having to be replaced together with the connecting tube, thereby effectively reducing waste of resources.

[0005] In the above technical solution, when the end head is worn out due to long-term use and needs to be replaced, the end head can be replaced alone without having to replace it together with the connecting pipe, thereby effectively reducing resource waste. However, due to the modular design between the end head and the connecting pipe, a gap may be generated at the connection between the two during long-term use, causing the cutting drill bit to vibrate during cutting, thereby affecting the processing quality of the workpiece and may even cause damage to the workpiece, increasing the user's losses. For this reason, we provide a cutting drill that is easy to remove chips for crankshaft cutting. Utility Model Content

[0006] The utility model provides a cutting drill for crankshaft cutting that is easy to remove chips in order to solve the problem that during long-term use, a gap may be generated at the connection between the two, causing the cutting drill to vibrate during cutting, thereby affecting the processing quality of the workpiece and even causing damage to the workpiece, thereby increasing the loss of the user.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a cutting drill for easy chip removal based on crankshaft cutting processing, comprising a mounting base, a milling cutter bar is movably mounted on the lower end of the mounting base, a cutter bar mounting groove is provided at the connection between the mounting base and the milling cutter bar, the cutter bar mounting groove is provided inside the mounting base, a rubber ring mounting groove is provided above the cutter bar mounting groove, and a first rubber ring is fitted and mounted on the surface of the rubber ring mounting groove;

[0008] A knife bar limiting groove is fixedly arranged above the rubber ring installation groove, and the knife bar limiting groove is fixedly connected to the installation base. A damping ring installation groove is opened above the knife bar limiting groove, and a first damping ring is fittedly installed on the outer wall of the damping ring installation groove.

[0009] As a further solution of the utility model: a chip withdrawal groove is provided on the outer periphery of the milling cutter bar, and a blade mounting groove is provided at the lower end of the chip withdrawal groove.

[0010] As a further solution of the utility model: a blade fixing hole is provided on the outer wall surface of the blade installation groove, and a milling blade is movably installed outside the blade installation groove.

[0011] As a further solution of the utility model: a blade limiting hole is opened on the outer wall surface of the milling blade, and a blade fixing screw is installed on the blade fixing hole and the internal thread of the blade limiting hole.

[0012] As a further solution of the utility model: a shank mounting block is fixedly connected to the connection between the milling cutter bar and the mounting base, and a limiting screw hole is provided on the upper outer wall of the shank mounting block.

[0013] As a further solution of the utility model: a clamping surface is provided above the outer wall surface of the mounting base, and a knife bar screw fixing hole is also provided on the outer wall surface of the mounting base.

[0014] As a further solution of the utility model: the arbor screw fixing hole is located below the clamping surface, and the inner thread of the arbor screw fixing hole is installed with the arbor fixing screw.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model connects the mounting base and the milling cutter bar to each other, and ensures tight connection and reduces vibration through the rubber ring mounting groove and the first rubber ring, as well as the damping ring mounting groove and the first damping ring, greatly reducing the vibration that may be generated during the cutting process, improving the cutting stability and machining accuracy, and the chip removal groove opened on the periphery of the milling cutter bar can effectively discharge the chips generated during the cutting process, avoiding the accumulation of chips that affect the cutting effect;

[0017] 2. The design of the blade mounting groove, blade fixing hole, blade limiting hole and blade fixing screw of the utility model makes the replacement and maintenance of the milling blade simple and quick. The combined use of the arbor mounting block, the limiting screw hole and the arbor fixing screw ensures that the milling arbor is firmly fixed on the mounting base to prevent it from falling off or loosening during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation base and milling cutter bar structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the installation base of the utility model;

[0021] Figure 4 This is a schematic diagram of the blade installation slot and blade fixing hole structure of the utility model.

[0022] In the figure: 1. Mounting base; 2. Clamping surface; 3. Milling arbor; 4. Chip groove; 5. Milling blade; 6. Blade fixing screw; 7. Arbor fixing screw; 8. Arbor mounting block; 9. Limit screw hole; 10. Arbor limiting groove; 11. First damping ring; 12. Arbor screw fixing hole; 13. Damping ring mounting groove; 14. Blade limiting hole; 15. Blade mounting groove; 16. Blade fixing hole; 17. Rubber ring mounting groove; 18. First rubber ring; 19. Arbor mounting groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0024] like Figures 1 to 4As shown, a cutting drill for easy chip removal based on crankshaft cutting processing includes a mounting base 1, a milling cutter bar 3 is movably mounted on the lower end of the mounting base 1, a cutter bar mounting groove 19 is provided at the connection between the mounting base 1 and the milling cutter bar 3, the cutter bar mounting groove 19 is provided inside the mounting base 1, a rubber ring mounting groove 17 is provided above the cutter bar mounting groove 19, a first rubber ring 18 is fitted on the surface of the rubber ring mounting groove 17, a cutter bar limiting groove 10 is fixedly provided above the rubber ring mounting groove 17, and the cutter bar The limiting groove 10 and the mounting base 1 are fixedly connected, a damping ring mounting groove 13 is opened above the tool bar limiting groove 10, and a first damping ring 11 is installed on the outer wall of the damping ring mounting groove 13. The mounting base 1 and the milling tool bar 3 are interconnected, and through the rubber ring mounting groove 17 and the first rubber ring 18, as well as the damping ring mounting groove 13 and the first damping ring 11, a tight connection is ensured to reduce vibration, thereby greatly reducing the vibration that may be generated during the cutting process and improving the cutting stability and processing accuracy. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, the present embodiment also includes: a chip groove 4 is provided on the periphery of the milling tool rod 3, and the chip groove 4 provided on the periphery of the milling tool rod 3 can effectively discharge the chips generated during the cutting process to prevent the chips from accumulating and affecting the cutting effect; a blade mounting groove 15 is provided at the lower end of the chip mounting groove 4, and a blade fixing hole 16 is provided on the outer wall surface of the blade mounting groove 15; a milling blade 5 is movably installed on the outside of the blade mounting groove 15, and a blade limiting hole 14 is provided on the outer wall surface of the milling blade 5; a blade fixing screw 6 is installed on the inner threads of the blade fixing hole 16 and the blade limiting hole 14, and the blade mounting groove 15, the blade fixing hole 16, the blade limiting hole 14 and the blade fixing screw 6 are installed; The design of the fixing screw 6 makes the replacement and maintenance of the milling blade 5 simple and quick. The connection between the milling tool bar 3 and the mounting base 1 is fixedly connected with a tool bar mounting block 8. A limiting screw hole 9 is provided on the upper outer wall of the tool bar mounting block 8. A clamping surface 2 is provided above the outer wall surface of the mounting base 1. A tool bar screw fixing hole 12 is also provided on the outer wall surface of the mounting base 1. The tool bar screw fixing hole 12 is located below the clamping surface 2. The inner thread of the tool bar screw fixing hole 12 is installed with a tool bar fixing screw 7. The combined use of the tool bar mounting block 8, the limiting screw hole 9 and the tool bar fixing screw 7 ensures that the milling tool bar 3 is firmly fixed on the mounting base 1 to prevent it from falling off or loosening during the cutting process.

[0026] Working principle: First, the mounting base 1 is fixedly connected to the processing equipment through the clamping surface 2. The tool bar mounting groove 19 inside the mounting base 1 provides an installation space for the tool bar mounting block 8 fixed on the upper end of the milling tool bar 3, and the first rubber ring 18 in the rubber ring mounting groove 17 is used for sealing and vibration reduction. The first rubber ring 18 can effectively fill the small gap between the mounting base 1 and the milling tool bar 3 to reduce vibration during the cutting process;

[0027] Secondly, above the rubber ring mounting groove 17, the arbor limiting groove 10 provides additional support and positioning for the milling arbor 3, ensuring that it will not shake or deviate from the predetermined position during the cutting process. At the same time, the first damping ring 11 in the damping ring mounting groove 13 further enhances the vibration reduction effect, making the cutting process more stable. The chip withdrawal groove 4 opened on the outer periphery of the milling arbor 3 discharges the chips from the chip withdrawal groove 4 during the cutting process, avoiding the chips from accumulating in the cutting area and affecting the cutting effect and tool life. The blade mounting groove 15, the blade fixing hole 16, the blade limiting hole 14 and the blade fixing screw 6 cooperate with each other, making the replacement and maintenance of the milling blade 5 simple and quick, thereby improving work efficiency.

[0028] Then, the limiting screw hole 9 above the arbor mounting block 8 and the arbor screw fixing hole 12 on the outer wall of the mounting base 1 cooperate with the arbor fixing screw 7 to ensure the stable installation of the milling arbor 3. This double fixing method further improves the stability and safety of the cutting drill.

[0029] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cutting drill for easy chip removal based on crankshaft cutting, comprising a mounting base (1), characterized in that: A milling cutter bar (3) is movably mounted at the lower end of the mounting base (1); a cutter bar mounting groove (19) is provided at the connection between the mounting base (1) and the milling cutter bar (3); the cutter bar mounting groove (19) is provided inside the mounting base (1); a rubber ring mounting groove (17) is provided above the cutter bar mounting groove (19); a first rubber ring (18) is fitted on the surface of the rubber ring mounting groove (17); A knife bar limiting groove (10) is fixedly arranged above the rubber ring installation groove (17); the knife bar limiting groove (10) is fixedly connected to the installation base (1); a damping ring installation groove (13) is provided above the knife bar limiting groove (10); and a first damping ring (11) is fittedly installed on the outer wall of the damping ring installation groove (13).

2. A cutting drill for easy chip removal based on crankshaft cutting according to claim 1, characterized in that: The outer periphery of the milling cutter bar (3) is provided with a chip removal groove (4), and the lower end of the chip removal groove (4) is provided with a blade mounting groove (15).

3. A cutting drill for easy chip removal based on crankshaft cutting according to claim 2, characterized in that: A blade fixing hole (16) is provided on the outer wall surface of the blade installation groove (15), and a milling blade (5) is movably mounted outside the blade installation groove (15).

4. A cutting drill for easy chip removal based on crankshaft cutting according to claim 3, characterized in that: The outer wall surface of the milling blade (5) is provided with a blade limiting hole (14), and the blade fixing hole (16) and the internal threads of the blade limiting hole (14) are provided with a blade fixing screw (6).

5. A cutting drill for easy chip removal based on crankshaft cutting according to claim 1, characterized in that: A shank mounting block (8) is fixedly connected to the connection between the milling shank (3) and the mounting base (1), and a limiting screw hole (9) is provided on the upper outer wall of the shank mounting block (8).

6. A cutting drill for easy chip removal based on crankshaft cutting according to claim 1, characterized in that: A clamping surface (2) is provided above the outer wall surface of the mounting base (1), and a knife bar screw fixing hole (12) is also provided on the outer wall surface of the mounting base (1).

7. A cutting drill for easy chip removal based on crankshaft cutting according to claim 6, characterized in that: The tool bar screw fixing hole (12) is located below the clamping surface (2), and a tool bar fixing screw (7) is installed on the internal thread of the tool bar screw fixing hole (12).

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