CNC machining key groove plunge milling cutter

Abstract

The utility model relates to the technical field of CNC cutters, in particular to a CNC machining key groove plunge milling cutter. Comprising a clamping part and a cutting part, the cutting part comprises a depth arm connected with the clamping part, the depth arm is provided with at least one plane, a cutter part is fixedly connected to the plane, and the outer end of the cutter part is located in the upper projection range of the clamping part; the cutter part arranged on the depth arm is used for machining the key groove of the plastic part, the whole cutter continuously moves up and down in the Z direction in the machining process, corner allowance is rapidly removed, and therefore machining efficiency is improved, surface quality of parts is guaranteed, and machining quality of the key groove of the plastic part is improved. And secondly, the height-adjustable structural design is adopted for the depth arm, the cutter part can be movably formed, the cutter can be suitable for key groove machining of parts with different thicknesses within a certain range, the problem that the clamping part abuts against the parts when moving up and down for cutting is avoided, and the applicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to CNC cutter technical field especially relates to a CNC processing key groove slot milling cutter. BACKGROUND

[0002] In contemporary manufacturing industry, machining center (CNC) is indispensable in milling processing, and they improve production efficiency and product quality through high precision and automation. However, in the milling process, especially in the processing of the right angle corner of the key groove of the part, the traditional cutter is often difficult to completely remove the excess at the corner due to the characteristics of rotary motion.

[0003] Although the processing of metal materials can be solved to a certain extent by special processes such as electric discharge machining (EDM) and wire cutting, but for non-conductive materials such as plastics, the above special processes become unsuitable due to the non-conductivity of the material, so the excess problem of the right angle corner of the key groove of the plastic part in the CNC processing becomes a technical challenge to be solved.

[0004] Therefore, in order to meet the stability of the key groove of the plastic part in the processing process, we propose a CNC processing key groove slot milling cutter. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the shortcomings that the above special processes become unsuitable due to the non-conductivity of the material for non-conductive materials such as plastics in the prior art, and proposes a CNC processing key groove slot milling cutter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A CNC processing key groove slot milling cutter is designed;

[0008] It comprises a clamping part and a cutting part;

[0009] The cutting part comprises a depth arm connected with the clamping part, the depth arm has at least one plane, a cutter part is fixedly connected on the plane, and the outer end of the cutter part is located in the projection range of the clamping part;

[0010] The adjusting structure is arranged between the depth arm and the clamping part.

[0011] Further, a adjusting groove is formed in the bottom end of the clamping part, the depth arm is slidingly connected in the adjusting groove, and is locked through the adjusting structure.

[0012] Further, the clamping part is a cylindrical structure;

[0013] The adjusting structure comprises a locking structure in the clamping part and a plurality of locking grooves formed outside the depth arm, and the locking structure is in clamping engagement with the locking grooves.

[0014] Further, the locking structure comprises a mounting hole opened in the clamping part in a radial direction, and a locking block movably connected in the mounting hole, and the locking block is in clamping engagement with the locking grooves.

[0015] Further, a stopper is detachably connected in the mounting hole, and the stopper is provided with a spring together with the locking block.

[0016] Further, the mounting hole is a stepped hole, and the stopper is a hexagonal bolt threadedly connected at a front end of the stepped hole.

[0017] Further, the locking block comprises a columnar portion and a clamping block formed at a front end of the columnar portion, the clamping block is in clamping engagement with the locking grooves, and an inclined surface is further provided at a bottom of the columnar portion.

[0018] Further, the locking structure further comprises an adjusting hole opened at a bottom end of the clamping part and communicated to the mounting hole, an adjusting rod is threadedly connected in the adjusting hole, and a top end of the adjusting rod abuts against the inclined surface.

[0019] The CNC machining keyway slot milling cutter has the advantages that: the cutter part provided on the depth arm is used for machining the keyway slot of the plastic part, the whole cutter continuously moves up and down in the Z direction during machining, and the corner allowance is quickly removed, so that the machining efficiency is improved and the surface quality of the part is ensured, and in addition, the depth arm adopts the height-adjustable structure design, the cutter part can be moved, the keyway slot of parts with different thicknesses can be machined within a certain range, the problem that the clamping part abuts against the part during up and down movement and cutting is avoided, and the applicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the keyway slot structure of the plastic part to be machined.

[0021] Figure 2 It is a perspective view of the utility model;

[0022] Figure 3 It is a bottom view of the utility model;

[0023] Figure 4 It is an exploded structural schematic view of the utility model;

[0024] Figure 5 It is a sectional view of the utility model;

[0025] Figure 6 It is a structure diagram of the locking structure of the utility model.

[0026] In the figure: 1, clamping part; 11, adjusting groove; 2, cutting part; 21, depth arm; 22, plane; 23, cutter part; 3, adjusting structure; 31, locking structure; 311, mounting hole; 312, locking block; 3121, columnar part; 3122, clamping block; 3123, inclined surface; 313, stopper; 314, spring; 32, locking groove; 33, adjusting hole; 34, adjusting rod. DETAILED DESCRIPTION

[0027] 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.

[0028] Reference Figures 2-6 For an embodiment of the utility model, a CNC machining keyway slot milling cutter is disclosed, specifically the milling cutter comprises a clamping part 1 and a cutting part 2, the clamping part 1 is used for connecting a CNC tool holder, and the cutting part 2 is used for cutting plastic parts;

[0029] The cutting part 2 comprises a depth arm 21 connected with the clamping part 1, the depth arm 21 has at least one plane 22, a cutter part 23 is fixedly connected on the plane 22, of course, the cutter part 23 is vertically connected with the plane 22 and is designed in one piece, and the outer end of the cutter part 23 is located in the projection range of the clamping part 1, that is to say, the outer end of the cutter part 23 in the utility model does not exceed the outer wall of the clamping part 1.

[0030] The adjusting structure 3 is used for adjusting the length of the depth arm 21 to adapt to the up and down cutting machining of keyways of different depth plastic parts within a certain range.

[0031] In some embodiments, the bottom end of the clamping part 1 is provided with an adjusting groove 11, the depth arm 21 is slidingly connected in the adjusting groove 11 and is locked through the adjusting structure 3, and specifically the adjusting groove 11 in the embodiment is designed in an eccentric structure, so that the design length of the cutter part 23 can be provided, and the cutting stability is improved.

[0032] Further, the clamping part 1 in the embodiment is a cylindrical structure.

[0033] The adjusting structure 3 comprises locking structures 31 in the clamping part 1 and locking grooves 32 formed outside the depth arm 21, and the locking grooves 32 are rectangular grooves in the embodiment, and the locking grooves 32 are arranged along the length direction of the depth arm 21, and the locking structures 31 are connected with the locking grooves 32.

[0034] The locking structure 31 comprises mounting holes 311 formed in the clamping part 1 in the radial direction, and the mounting holes 311 are connected with the adjusting grooves 11, and locking blocks 312 are movably connected in the mounting holes 311, and the locking blocks 312 are connected with the locking grooves 32.

[0035] The mounting holes 311 are movably connected with stop pieces 313, and the stop pieces 313 are provided with springs 314.

[0036] In a preferred embodiment, the mounting holes 311 are stepped holes, and the stop pieces 313 are hexagonal bolts connected with the front ends of the stepped holes.

[0037] That is, the locking blocks 312 are first arranged in the mounting holes 311, and then the springs 314 and the stop pieces 313 are arranged in sequence, and the stop pieces 313 are fixed by screw connection, so as to assemble the locking blocks 312 and the springs 314, and the stop pieces 313 are only needed to be disassembled when disassembled, so that the operation is simple and convenient.

[0038] Further, the locking block 312 comprises a columnar portion 3121 and a clamping block 3122 formed on the front end of the columnar portion 3121, and a guide groove is arranged outside the columnar portion 3121, and a protrusion is formed on the inner wall of the mounting hole 311, and the columnar portion 3121 is circumferentially locked by the sliding cooperation between the protrusion and the guide groove.

[0039] The clamping block 3122 is connected with the locking groove 32, and an inclined surface 3123 is further arranged at the bottom of the columnar portion 3121.

[0040] Better, in order to achieve the convenient drive adjustment of the locking block 312, the locking structure 31 in the embodiment further comprises an adjusting hole 33 which is arranged at the bottom end of the clamping part 1 and is communicated to the mounting hole 311, the inside of the adjusting hole 33 is threadedly connected with an adjusting rod 34, the top end of the adjusting rod 34 abuts against the inclined surface 3123, of course, the adjusting hole 33 in the embodiment can also be arranged as a stepped hole, and the end of the adjusting rod 34 is provided with an internal hexagonal hole.

[0041] That is to say, in the initial state, the top end of the adjusting rod 34 abuts against the inclined surface 3123 to stop the position of the locking block 312, when the height of the cutter part 23 needs to be adjusted according to the depth of the keyway to be machined, at this time, the adjusting rod 34 is rotated in the forward direction to move inward, the top of the adjusting rod 34 abuts against the inclined surface 3123 to drive the whole locking block 312 to move backward and separate from the locking groove 32 on the depth arm 21, then the height of the depth arm 21 can be freely adjusted upward and downward, when the adjustment is completed, the adjusting rod 34 is rotated in the reverse direction, at this time, the top end of the adjusting rod 34 gradually separates from the inclined surface 3123, under the pushing of the spring 314, the whole locking block 312 moves forward and is clamped with the locking groove 32, so as to complete the height adjustment of the depth arm 21.

[0042] When machining, the cutter part 23 of the depth arm 21 is arranged at the position A to be machined on the plastic part keyway structure B. Figure 1 The main shaft of the "CNC" clamps the keyway slot insert milling cutter, and the cutter blade direction of the keyway slot insert milling cutter is consistent with the direction of the keyway slot to be machined. Figure 2 The plastic part keyway structure B is equal to the width C of the cutter part 23, that is, the size B = C.

[0043] In actual application, the "CNC" needs to be operated according to the following steps: 1, the main shaft is oriented, the cutter blade direction of the keyway slot insert milling cutter is consistent with the direction of the keyway slot to be machined in the machine tool; 2, the keyway slot insert milling cutter is quickly moved to the position A above the plastic part keyway structure; 3, the cutter Z direction is moved from top to bottom until it penetrates through the whole keyway; 4, the main shaft Z direction is moved upward to remove the cutter and return to zero, and the above completes the machining of the plastic part right-angle keyway structure. Figure 3 Figure 1 Figure 1

[0044] In summary, in the utility model, the cutter part 23 arranged on the depth arm 21 is used for machining the keyway of the plastic part, the whole cutter continuously moves up and down in the Z direction during machining, the corner allowance is quickly removed, the machining efficiency is improved, and the surface quality of the part is ensured, secondly, the depth arm 21 adopts the height-adjustable structure design, the movable cutter part 23 is improved, the keyway machining of parts with different thicknesses can be achieved within a certain range, the problem that the clamping part 1 abuts against the part during upward and downward cutting is avoided, and the applicability is strong.

[0045] ​​​The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A CNC keyway milling cutter, characterized in that ； It comprises a clamping part (1) and a cutting part (2); The cutting portion (2) comprises a depth arm (21) connected to the clamping portion (1), the depth arm (21) having at least one plane (22), a cutter portion (23) being fixedly connected to the plane (22), and an outer end of the cutter portion (23) being located within an upper projection range of the clamping portion (1); An adjustment structure (3) is provided between the depth arm (21) and the clamping portion (1).

2. A CNC keyway milling cutter according to claim 1, characterized in that: An adjustment slot (11) is provided at the bottom end of the clamping portion (1), and the depth arm (21) is slidably connected to the adjustment slot (11) and is locked by the adjustment structure (3).

3. A CNC keyway milling cutter according to claim 1 or 2, characterized in that: The clamping part (1) is a cylindrical structure; The adjustment structure (3) comprises a locking structure (31) located in the clamping portion (1), and a plurality of locking grooves (32) formed on the outside of the depth arm (21), wherein the locking structure (31) is engaged with the locking grooves (32).

4. The CNC keyway milling cutter according to claim 3, characterized in that: The locking structure (31) comprises a mounting hole (311) radially opened on the clamping portion (1), a locking block (312) movably connected in the mounting hole (311), and the locking block (312) is engaged with the locking groove (32); A stopper (313) is detachably connected to the mounting hole (311), and a spring (314) is provided between the stopper (313) and the locking block (312).

5. The CNC keyway milling cutter according to claim 4, characterized in that: The mounting hole (311) is a step hole, wherein the stopper (313) is a hexagon socket bolt threadedly connected to the front end of the step hole.

6. The CNC keyway milling cutter according to claim 4, characterized in that: The locking block (312) comprises a columnar portion (3121) and a clamping block (3122) formed on the front end of the columnar portion (3121); the clamping block (3122) is clamped with the locking groove (32); and a slope (3123) is further provided at the bottom of the columnar portion (3121).

7. The CNC keyway milling cutter according to claim 6, characterized in that: The locking structure (31) further comprises an adjustment hole (33) formed at the bottom end of the clamping portion (1) and connected to the mounting hole (311), an adjustment rod (34) being connected to the internal thread of the adjustment hole (33), and a top end of the adjustment rod (34) abutting against the inclined surface (3123).

Images