High-precision plane milling cutter

Abstract

The utility model discloses a high-precision plane milling cutter, which relates to the technical field of milling cutters, and comprises a cutter head and a plurality of blades, and the plurality of blades are arranged on the annular side of the end part of the cutter head; adjusting assemblies are arranged on the sides, away from the top face of the cutter head, of the blades of the cutter head, each adjusting assembly comprises an adjusting ring and a screw, the screws are sleeved with the adjusting rings, and the screws are in threaded connection with the cutter head. By arranging the adjusting ring and rotating the screw, the head of the screw abuts against the adjusting ring, the adjusting ring is made to deviate towards one side of the blade, the bottom of the blade is squeezed, end-direction jumping of the blade is adjusted, higher end-direction jumping precision is obtained, during cutting, cutting force does not directly act on screw threads, and the screw does not loosen along with cutting vibration. And the processing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a high-precision plane milling cutter. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth cuts off the excess of the workpiece intermittently in sequence during operation. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] During machining, the blade of the milling cutter will produce end runout. In the prior art, in order to obtain higher end runout accuracy, ultra-fine screws are generally used for direct adjustment. In this way, during the cutting process, the cutting force directly acts on the screw thread, and with the cutting vibration, the thread will loosen, affecting the machining effect. Therefore, a high-precision plane milling cutter is required. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-precision plane milling cutter comprises: a cutter disc and a plurality of blades, wherein the plurality of blades are arranged on the end ring side of the cutter disc;

[0007] The cutter disc is provided with an adjustment assembly on one side of the plurality of blades away from the top surface of the cutter disc, the adjustment assembly comprising an adjustment ring and a screw, the adjustment ring is sleeved on the screw, and the screw is threadedly connected to the cutter disc;

[0008] The outer ring surface of the adjustment ring contacts one side of the blade, the inner cavity of the adjustment ring includes a truncated cone-shaped adjustment cavity arranged on the side away from the blade disc and a columnar movable cavity connected to the adjustment cavity, and the large-diameter side of the adjustment cavity is located on the end surface of the adjustment ring;

[0009] The screw comprises a threaded section and a head arranged at one end of the threaded section, the diameter of the threaded section is smaller than the caliber of the movable cavity, and the side of the annular surface of the head close to the blade abuts against the adjusting ring.

[0010] Its further characteristic is that

[0011] The side of the adjusting ring away from the cutter disc is provided with two deformation grooves opposite to each other.

[0012] The end of the adjusting ring close to the blade is composed of a raised portion consisting of two inclined surfaces.

[0013] The head is in a truncated cone shape, and one end of the head with a small diameter is connected to the threaded section.

[0014] The inclination of the head is 23 degrees.

[0015] A cross groove is formed at one end of the head away from the threaded section.

[0016] The end of the thread segment away from the head is in a truncated cone shape.

[0017] The cutter disc is provided with a mounting groove for placing an adjusting ring.

[0018] The cutter disc is provided with a blade placement groove.

[0019] The number of blades provided is eight.

[0020] The above structure of the utility model can achieve the following beneficial effects:

[0021] (1) The present application sets an adjustment ring, and by rotating the screw, the head is abutted against the adjustment ring, so that the adjustment ring is offset to one side of the blade, so as to squeeze the bottom of the blade and adjust the end runout of the blade to obtain a higher end runout accuracy. During cutting, the cutting force does not directly act on the screw thread, and the screw will not loosen with the cutting vibration, so that the processing effect is better;

[0022] (2) In the present application, as the screw moves, the head expands the deformation groove, so that the annular surface of the adjusting ring contacts and squeezes the blade, thereby providing a higher end runout accuracy;

[0023] (3) The locking force of the blade can provide the self-locking force of the screw and the adjusting ring, so that the cutting stability of the cutter disc is fully guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of this embodiment;

[0025] Figure 2 This is a schematic diagram of the structure of the adjusting ring and the screw in this embodiment;

[0026] Figure 3 This is a cross-sectional view of the structure of the adjustment ring in this embodiment;

[0027] Figure 4 Schematic diagram of the structure of the screw in this embodiment.

[0028] In the figure: 1, cutter disc; 11, mounting groove; 12, blade placement groove; 2, blade; 3, adjustment ring; 31, adjustment cavity; 32, movable cavity; 33, deformation groove; 4, screw; 41, threaded section; 42, head. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] refer to Figure 1-2 A high-precision surface milling cutter shown includes: a cutter disc 1 and a plurality of blades 2, wherein the plurality of blades 2 are all arranged on the end ring side of the cutter disc 1;

[0033] The cutter disc 1 is provided with an adjustment assembly on one side of the plurality of blades 2 away from the top surface of the cutter disc 1. The adjustment assembly comprises an adjustment ring 3 and a screw 4. The adjustment ring 3 is sleeved on the screw 4. The screw 4 is threadedly connected to the cutter disc 1.

[0034] The outer ring surface of the adjusting ring 3 contacts one side of the blade 2, and the inner cavity of the adjusting ring 3 includes a truncated cone-shaped adjusting cavity 31 arranged on the side away from the blade disc 1 and a columnar movable cavity 32 connected to the adjusting cavity 31. The large-diameter side of the adjusting cavity 31 is located at the end surface of the adjusting ring 3.

[0035] The screw 4 includes a threaded section 41 and a head 42 disposed at one end of the threaded section 41 . The diameter of the threaded section 41 is smaller than the caliber of the movable cavity 32 . The side of the annular surface of the head 42 close to the blade 2 abuts against the adjusting ring 3 .

[0036] Based on the above structure, by setting an adjusting ring 3 and rotating the screw 4 (the screw 4 thread adopts an ultra-fine thread), the head 42 is made to contact the adjusting ring 3, so that the adjusting ring 3 is offset to the side of the blade 2, so as to squeeze the bottom of the blade 2 and adjust the end runout of the blade 2 to obtain a higher end runout accuracy. During cutting, the cutting force does not directly act on the screw thread, and the screw will not loosen with the cutting vibration, thereby achieving a better processing effect.

[0037] Among them, Figure 2 and3 As shown, two deformation grooves 33 are formed on the side of the adjusting ring 3 away from the cutter disc 1 .

[0038] In actual use, by providing two deformation grooves 33 , the head 42 squeezes the adjustment ring 3 , so that the adjustment ring 3 opens at the deformation grooves 33 , further squeezing the blade 2 .

[0039] Among them, Figure 2 and 3 As shown, one end of the adjusting ring 3 close to the blade 2 is composed of a raised portion consisting of two inclined surfaces.

[0040] In actual use, this design allows for better resistance at the bottom of the blade 2.

[0041] Among them, Figure 3 and 4 As shown, the head 42 is in a truncated cone shape, the end of the head 42 with a smaller diameter is connected to the threaded section 41 , the inclination of the head 42 is 23 degrees, and a cross groove is provided at the end of the head 42 away from the threaded section 41 .

[0042] In actual use, by providing the truncated cone-shaped head 42 , the adjustment ring 3 can be better squeezed to achieve a better adjustment effect, while the cross groove is provided to facilitate the rotation of the screw 4 .

[0043] Among them, Figure 3 and 4 As shown, the end of the thread segment 41 away from the head 42 is truncated cone-shaped.

[0044] In actual use, by setting the end of the threaded section 41 to be truncated cone-shaped, the screw 4 can be better inserted into the cutter head 1 during installation.

[0045] Among them, Figure 1 As shown, a mounting groove 11 for placing the adjusting ring 3 is provided on the cutter disc 1, and a blade placement groove 12 is provided on the cutter disc 1.

[0046] In actual use, the installation groove 11 and the blade placement groove 12 are provided to facilitate installation of the adjustment ring 3 and the blade 2 .

[0047] It is further optimized that the number of blades 2 is set according to processing requirements. In this embodiment, eight blades 2 are provided.

[0048] Working principle of the utility model: the utility model sets an adjusting ring 3, rotates the screw 4, makes the head 42 contact the adjusting ring 3, makes the adjusting ring 3 deviate to one side of the blade 2, squeezes the bottom of the blade 2, adjusts the end-to-end runout of the blade 2, obtains a higher end-to-end runout accuracy, and when cutting, the cutting force does not directly act on the screw thread, and with the cutting vibration, the screw will not loosen, so that the processing effect is better

[0049] In the present application, as the screw 4 moves, the head 42 expands the deformation groove 33, so that the annular surface of the adjustment ring 3 is in contact and pressed with the blade 2, thereby providing a higher end runout accuracy.

[0050] The locking force of the blade 2 can provide the self-locking force of the screw and the adjusting ring, so that the cutting stability of the cutter head 1 is fully guaranteed.

[0051] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A high-precision surface milling cutter, characterized in that: include: A cutter disc (1) and a plurality of blades (2), wherein the plurality of blades (2) are all arranged on the end ring side of the cutter disc (1); The cutter disc (1) is provided with an adjustment component on one side of the plurality of blades (2) away from the top surface of the cutter disc (1), the adjustment component comprising an adjustment ring (3) and a screw (4), the adjustment ring (3) being sleeved on the screw (4), and the screw (4) being threadedly connected to the cutter disc (1); The outer ring surface of the adjustment ring (3) contacts one side of the blade (2); the inner cavity of the adjustment ring (3) comprises a truncated cone-shaped adjustment cavity (31) arranged on a side away from the blade disc (1) and a columnar movable cavity (32) connected to the adjustment cavity (31); the large-diameter side of the adjustment cavity (31) is located on the end surface of the adjustment ring (3); The screw (4) comprises a threaded section (41) and a head (42) arranged at one end of the threaded section (41); the diameter of the threaded section (41) is smaller than the caliber of the movable cavity (32); and the side of the annular surface of the head (42) close to the blade (2) abuts against the adjustment ring (3).

2. A high-precision surface milling cutter according to claim 1, characterized in that: The side of the adjustment ring (3) away from the cutter disc (1) is provided with two deformation grooves (33) opposite to each other.

3. A high-precision surface milling cutter according to claim 1, characterized in that: The end of the adjusting ring (3) close to the blade (2) is composed of a raised portion consisting of two inclined surfaces.

4. A high-precision surface milling cutter according to claim 3, characterized in that: The head (42) is in the shape of a truncated cone, and the end with a small diameter of the head (42) is connected to the threaded section (41).

5. A high-precision surface milling cutter according to claim 4, characterized in that: The inclination of the head (42) is 23 degrees.

6. The high-precision surface milling cutter according to claim 1, characterized in that: A cross groove is formed at one end of the head (42) away from the threaded section (41).

7. The high-precision surface milling cutter according to claim 1, characterized in that: The end of the threaded section (41) away from the head (42) is in a truncated cone shape.

8. The high-precision surface milling cutter according to claim 1, characterized in that: The cutter disc (1) is provided with a mounting groove (11) for accommodating the adjustment ring (3).

9. The high-precision surface milling cutter according to claim 1, characterized in that: The cutter disc (1) is provided with a blade placement groove (12).

10. The high-precision surface milling cutter according to claim 1, characterized in that: The number of blades (2) is eight.

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