Adjustable cutting milling cutter

Abstract

The utility model belongs to the technical field of cutting and milling cutters, in particular to an adjustable cutting and milling cutter, which comprises a fixed cutter holder and a plurality of cutting blades distributed at equal intervals along the circumferential direction, the fixed cutter holder is provided with mounting grooves for embedding the cutting blades, the adjustable cutting and milling cutter further comprises connecting blocks, the connecting blocks are fixed at the tail ends of the cutting blades, and the connecting blocks are fixed at the tail ends of the cutting blades. An inclined kidney-shaped hole is formed in the connecting block; the driving rod penetrates through the inclined kidney-shaped hole; the driving mechanism is connected to the driving rod in a drivable mode and used for driving the driving rod to move in the vertical direction; according to the utility model, the driving rod is driven by the driving mechanism to move along the vertical direction, and the driving rod can drive the cutting blade to move transversely when moving along the inclined kidney-shaped hole, so that the cutting radius is adjusted, the cutting blade does not need to be replaced, the operation is more convenient, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting milling cutters, and in particular relates to an adjustable cutting milling cutter. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. The milling cutter is mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. Several evenly distributed blades are fixed on the tool holder of the disc cutting milling cutter.

[0003] At present, the blades of a disc-type cutting milling cutter are usually fixed by bolts or other manual methods. For example, in the prior art, a Chinese utility model patent with authorization announcement number CN216680426U discloses "a disc-type cutting milling cutter", including an outer tool holder, an inner tool holder is installed on the inner side of the outer tool holder, a vertical rod is installed at the middle position inside the inner tool holder, a blade is placed in a tool groove opened on the outer side wall of the outer tool holder, a clamping mechanism is fixed on one side of the blade, and the clamping mechanism includes an extrusion plate, a guide rod, an eccentric block, a swivel and an extension rod, and an eccentric block and a swivel are installed under the outer side wall of the vertical rod to facilitate the staff to install and remove the blade.

[0004] Although the cutting milling cutters in the prior art including the above ones are easy to disassemble and assemble, they cannot adjust the cutting radius according to actual processing requirements. It is troublesome to replace the cutting milling cutter for different processing needs.

[0005] In order to solve the above problems, an adjustable cutting milling cutter is proposed in the present application. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides an adjustable cutting milling cutter, which has the characteristics of being easy to use, easy to adjust and having a wide range of applications.

[0007] To achieve the above object, the utility model provides the following technical solution: an adjustable cutting milling cutter, comprising a fixed cutter seat and a plurality of cutting blades equally spaced along the circumferential direction, wherein the fixed cutter seat has a mounting groove for embedding the cutting blades, and further comprising:

[0008] A connecting block, the connecting block is fixed to the rear end of the cutting blade and has an oblique waist hole on the connecting block;

[0009] A driving rod, the driving rod passing through the oblique waist hole;

[0010] A driving mechanism is drivably connected to the driving rod and is used to drive the driving rod to move in a vertical direction.

[0011] As a preferred technical solution of the utility model, the driving mechanism includes:

[0012] A lifting plate, the lifting plate is located in the fixed knife seat;

[0013] A mounting ear with a hole, wherein the mounting ear with a hole is fixed to the lifting plate, and the driving rod is installed between two symmetrically distributed mounting ears with holes;

[0014] An internally threaded pipe, the internally threaded pipe being fixed to the bottom surface of the lifting plate;

[0015] A countersunk screw has a countersunk hole on the fixed tool holder, the countersunk screw is rotatably installed in the countersunk hole, and the countersunk screw is screwed into the internal threaded tube by thread engagement.

[0016] As a preferred technical solution of the utility model, it also includes:

[0017] A guide column is fixed in the fixed knife seat and passes through the lifting plate.

[0018] As a preferred technical solution of the utility model, it also includes:

[0019] A top cover, the top cover is fixed to the top end of the fixed knife seat;

[0020] A fixing rod is fixed on the top cover.

[0021] As a preferred technical solution of the utility model, the outer wall of the cutting blade is tightly fitted to the inner wall of the mounting groove, and the vertical length of the cutting blade is equal to the vertical length of the mounting groove.

[0022] As a preferred technical solution of the present utility model, the inner bottom surface of the mounting groove is flush with the inner bottom surface of the fixed knife seat.

[0023] As a preferred technical solution of the utility model, it also includes:

[0024] The locking nut is a locking nut, wherein the driving rod passes through the mounting ear with a hole and has an external thread on the driving rod, and the locking nut is installed on the protruding end of the driving rod by screwing.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] In the utility model, a driving mechanism is provided to drive a driving rod to move in a vertical direction. When the driving rod moves along the oblique waist hole, it can drive the cutting blade to move laterally, so as to adjust the cutting radius. There is no need to replace the cutting blade, which is more convenient and helps to improve the processing efficiency.

[0027] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixed knife seat in the utility model;

[0031] Figure 3 This is a schematic diagram of the axonometric structure of the fixed tool holder in the utility model;

[0032] Figure 4 For this utility model Figure 3 A in the figure is an enlarged structural diagram.

[0033] In the figure: 1. fixed tool holder; 11. mounting groove; 12. countersunk hole; 2. cutting blade; 21. connecting block; 211. oblique waist hole; 3. top cover; 4. fixed rod; 5. driving mechanism; 51. lifting plate; 511. mounting ear with hole; 512. driving rod; 513. external thread; 52. internal threaded pipe; 53. countersunk screw; 54. guide column; 55. locking nut. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figure 1-Figure 4 The utility model provides the following technical solutions: an adjustable cutting milling cutter, comprising a fixed tool holder 1 and a plurality of cutting blades 2 equally spaced along a circumferential direction, the fixed tool holder 1 having a mounting groove 11 for embedding the cutting blades 2, and also comprising: a connecting block 21, a driving rod 512 and a driving mechanism 5.

[0036] Further, by Figure 1 and Figure 2As shown, in the present embodiment, the connecting block 21 is fixed to the tail end of the cutting blade 2, and has an oblique waist hole 211 on the connecting block 21, the driving rod 512 passes through the oblique waist hole 211, and the driving mechanism 5 is drivably connected to the driving rod 512, and is used to drive the driving rod 512 to move in the vertical direction. After adopting the above scheme, when in use, the fixed tool holder 1 is driven to rotate by the power component of the external machine tool, and drives the cutting blade 2 to rotate to achieve cutting work. When necessary, the driving mechanism 5 can be used to drive the driving rod 512 to move in the vertical direction. When the driving rod 512 moves along the oblique waist hole 211, it can drive the cutting blade 2 to move horizontally, which is used to adjust the cutting radius. There is no need to replace the cutting blade 2, which is more convenient and conducive to improving processing efficiency.

[0037] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the driving mechanism 5 includes: a lifting plate 51, a mounting ear with a hole 511, an internal threaded tube 52 and a countersunk screw 53. The lifting plate 51 is located in the fixed tool holder 1, the mounting ear with a hole 511 is fixed on the lifting plate 51, and the driving rod 512 is installed between two symmetrically distributed mounting ears with a hole 511. The internal threaded tube 52 is fixed to the bottom surface of the lifting plate 51, and a countersunk hole 12 is provided on the fixed tool holder 1. The countersunk screw 53 is rotatably installed in the countersunk hole 12, and the countersunk screw 53 is screwed into the internal threaded tube 52 by threading. After adopting the above scheme, the countersunk screw 53 is rotated with the help of a tool, and the internal threaded tube 52 drives the lifting plate 51 to move in the vertical direction under the action of threading, and the lifting plate 51 drives the driving rod 512 to move in the vertical direction through the mounting ear with a hole 511.

[0038] It should be noted that the countersunk screw 53 includes but is not limited to being rotatably installed in the countersunk hole 12 using a bearing. When the countersunk screw 53 is rotated, the countersunk screw 53 only rotates but does not move longitudinally.

[0039] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, it also includes: a guide column 54, which is fixed in the fixed tool holder 1 and passes through the lifting plate 51. The lifting plate 51 is guided by the set guide column 54 to improve the stability of the lifting plate 51.

[0040] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, it also includes: a top cover 3 and a fixing rod 4, the top cover 3 is fixed to the top of the fixed tool holder 1, and the fixing rod 4 is fixed on the top cover 3. After adopting the above scheme, when in use, the fixing rod 4 is installed on the power component of the machine tool by conventional means.

[0041] Preferably, by Figure 1-Figure 3As shown, in this embodiment, the outer wall of the cutting blade 2 fits tightly against the inner wall of the mounting groove 11, and the vertical length of the cutting blade 2 is equal to the vertical length of the mounting groove 11, which further improves the installation stability of the cutting blade 2 and avoids the cutting blade 2 from shaking.

[0042] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, the inner bottom surface of the mounting groove 11 is flush with the inner bottom surface of the fixed tool holder 1. Therefore, after the cutting blade 2 is installed, the bottom surface of the cutting blade 2 fits the inner bottom surface of the mounting groove 11, further improving the stability of the installation of the cutting blade 2.

[0043] Preferably, by Figure 1-Figure 4 As shown, in this embodiment, it also includes: a locking nut 55, a driving rod 512 passing through a mounting ear 511 with a hole, and an external thread 513 is provided on the driving rod 512, and the locking nut 55 is installed on the protruding end of the driving rod 512 by threaded engagement. After adopting the above scheme, the locking nut 55 is used to fix the driving rod 512, and at the same time, the combined connection between the cutting blade 2 and the lifting plate 51 is realized. Under the premise of ensuring the installation stability of the cutting blade 2, it is also convenient to disassemble and maintain the cutting blade 2.

[0044] Components not described in detail herein are prior art.

[0045] Working principle and use process of the utility model: When the adjustable cutting milling cutter of the utility model is used, the fixing rod 4 is installed on the power component of the machine tool by conventional means, and the fixing tool seat 1 is driven to rotate by the power component of the external machine tool, and drives the cutting blade 2 to rotate to realize the cutting work;

[0046] When necessary, the countersunk screw 53 is rotated with the help of a tool, and the internal threaded tube 52 drives the lifting plate 51 to move in the vertical direction under the action of thread rotation. The lifting plate 51 drives the driving rod 512 to move in the vertical direction through the perforated mounting ear 511. When the driving rod 512 moves along the oblique waist hole 211, it can drive the cutting blade 2 to move horizontally, which is used to adjust the cutting radius. There is no need to replace the cutting blade 2, which is more convenient and conducive to improving processing efficiency.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adjustable cutting milling cutter, comprising a fixed cutter seat (1) and a plurality of cutting blades (2) distributed at equal intervals along a circumferential direction, wherein the fixed cutter seat (1) has a mounting groove (11) for the cutting blades (2) to be embedded, characterized in that: Also includes: A connecting block (21), the connecting block (21) being fixed to the rear end of the cutting blade (2), and having an oblique waist hole (211) on the connecting block (21); A driving rod (512), wherein the driving rod (512) passes through the oblique waist hole (211); A driving mechanism (5), wherein the driving mechanism (5) is drivably connected to the driving rod (512) and is used to drive the driving rod (512) to move in a vertical direction.

2. An adjustable cutting milling cutter according to claim 1, characterized in that: The driving mechanism (5) comprises: A lifting plate (51), wherein the lifting plate (51) is located inside the fixed knife seat (1); A mounting ear (511) with a hole, wherein the mounting ear (511) with a hole is fixed on the lifting plate (51), and the driving rod (512) is installed between two symmetrically distributed mounting ears (511) with a hole; An internally threaded tube (52), wherein the internally threaded tube (52) is fixed to the bottom surface of the lifting plate (51); A countersunk screw (53) is provided with a countersunk hole (12) on the fixed knife seat (1), the countersunk screw (53) is rotatably installed in the countersunk hole (12), and the countersunk screw (53) is screwed into the internal threaded tube (52) by means of threaded engagement.

3. An adjustable cutting milling cutter according to claim 2, characterized in that: Also includes: A guide column (54), wherein the guide column (54) is fixed in the fixed knife seat (1) and passes through the lifting plate (51).

4. The adjustable cutting milling cutter according to claim 1, characterized in that: Also includes: A top cover (3), wherein the top cover (3) is fixed to the top end of the fixed knife seat (1); A fixing rod (4), wherein the fixing rod (4) is fixed on the top cover (3).

5. The adjustable cutting milling cutter according to claim 1, characterized in that: The outer wall of the cutting blade (2) fits tightly against the inner wall of the mounting groove (11), and the vertical length of the cutting blade (2) is equal to the vertical length of the mounting groove (11).

6. The adjustable cutting milling cutter according to claim 1, characterized in that: The inner bottom surface of the installation groove (11) is flush with the inner bottom surface of the fixed knife seat (1).

7. The adjustable cutting milling cutter according to claim 2, characterized in that: Also includes: The locking nut (55) passes through the mounting ear (511) with a hole, and the driving rod (512) has an external thread (513). The locking nut (55) is installed on the protruding end of the driving rod (512) by screwing.

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