Cutter head assembly for CNC machining

Abstract

The CNC machining tool bit assembly comprises a tool handle, a mounting base, an insert and a moving block, the mounting base is located at the lower end of the tool handle, the upper end of the tool handle is installed on a CNC machining center main shaft capable of moving up and down, two strip-shaped through holes are formed in the moving block, a screw rod penetrates through the strip-shaped through holes to be fixedly connected with the lower surface of the mounting base, and the insert is fixedly connected with the lower surface of the mounting base. A lower convex part is further arranged on the lower surface of the moving block, a mounting groove allowing a triangular cutter blade to be embedded is formed in the side surface of the lower convex part, a plurality of first racks are arranged on the surface of the side, away from the mounting base, of the insert at equal intervals, and a plurality of second racks are arranged on the surface of the side, making contact with the insert, of the moving block at equal intervals; the first rack and the second rack which are perpendicular to the strip-shaped through hole in the length direction of the strip-shaped through hole are arranged in parallel. According to the invention, high-precision accurate movement of the cutter blade in the horizontal direction can be realized, so that each section of cutting edge of the cutter blade can be fully used, and the cutter changing frequency is reduced.

Description

Technical Field

[0001] The invention relates to a CNC machined cutter head assembly, and relates to the technical field of mechanical machining. Background Art

[0002] In industry, blades are also called cutting tools. They are tools used for cutting in mechanical manufacturing, also known as cutting tools, including grinding tools, etc. Generally, blades are mainly suitable for finishing and semi-finishing of materials such as steel, cast steel, cast iron, and stainless steel. Turning tools generally include a handle and blades. The blades are installed on the handle (tool bar). The blades are easily damaged during long-term use, so they need to be replaced. At present, the turning tool handles in the industry are mostly in the form of a straight rod with a blade head on the top. This type of handle can only be used for the edge of a certain point on the blade, while most of the edges on the blade cannot be used. The blade's edge is mostly made of expensive materials, so the edge cannot be fully utilized, which causes a waste of resources to a large extent. Summary of the invention

[0003] The purpose of the present invention is to provide a CNC-processed cutter head assembly, which can realize high-precision and accurate movement of the cutter particles in the horizontal direction, so that each cutting edge of the cutter particles can be fully utilized, greatly improving the utilization efficiency of the cutter particles, while reducing the frequency of tool changing and improving the overall processing efficiency.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a CNC machined tool head assembly, comprising a tool handle, a mounting seat, an insert and a moving block, wherein the mounting seat is located at the lower end of the tool handle, the upper end of the tool handle is mounted on a CNC machining center spindle that can move up and down, the insert is mounted on the mounting seat, and the moving block is meshedly connected with the insert and fixedly connected with the mounting seat; The moving block is provided with two strip-shaped through holes, and a screw rod passes through each of the strip-shaped through holes and is fixedly connected to the lower surface of the mounting seat. The lower surface of the moving block also has a lower convex portion, and the side surface of the lower convex portion has a mounting groove for a triangular blade particle to be embedded. The blade particle is embedded in the mounting groove and fixed by a screw; A plurality of first racks are evenly spaced on a surface of the insert away from the mounting seat, and a plurality of second racks are evenly spaced on a surface of the moving block in contact with the insert. The first racks and the second racks are arranged parallel to each other and perpendicular to the strip-shaped through holes in their respective length directions.

[0005] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, a strip groove is formed on the lower surface of the mounting seat, and the insert is embedded in the strip groove and fixedly connected to the mounting seat by a plurality of screws.

[0006] 2. In the above solution, the distance between two adjacent first racks is 0.1 mm to 10 mm.

[0007] 3. In the above solution, the distance between two adjacent second racks is 0.1 mm to 10 mm.

[0008] 4. In the above solution, the mounting seat is a stainless steel mounting seat.

[0009] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The CNC machined cutter head assembly of the present invention has a moving block meshed with an insert and fixedly connected to a mounting seat, two strip-shaped through holes are formed on the moving block, and a screw rod passes through the strip-shaped through holes and is fixedly connected to the lower surface of the mounting seat. Through the arrangement of the strip-shaped through holes, the moving block can be adjusted in the horizontal direction, thereby realizing the movement of the cutter particle in the horizontal direction, and the whole cutting edge of the cutter particle can be used in conjunction with the up and down movement of the machining spindle, which greatly improves the use efficiency of the cutter particle, saves costs, reduces the frequency of tool change, and improves the overall machining efficiency; secondly, a plurality of first racks are evenly spaced on a side surface of the insert away from the mounting seat, and a plurality of second racks are evenly spaced on a side surface of the moving block in contact with the insert, the first racks are arranged in parallel with the second racks, and the arrangement of the first racks and the second racks accurately quantifies the movement amount of the moving block, realizes high-precision and accurate movement of the moving block, that is, the cutter particle, thereby ensuring that each cutting edge of the cutter particle is fully used, with an ingenious structure and high efficiency.

[0010] 2. The CNC-machined cutter head assembly of the present invention has a strip groove on the lower surface of its mounting seat, the insert is embedded in the strip groove and fixedly connected to the mounting seat by a plurality of screws. The detachable setting of the insert facilitates disassembly and replacement, and when the teeth on the insert are broken, they can be replaced promptly and quickly to ensure processing efficiency; secondly, four blocks are arranged on the lower surface of the mounting seat, and the setting of the blocks serves to limit the moving block, preventing the knife particles from being thrown out with the moving block during high-speed rotation during processing, thereby ensuring the safety of the knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 This is a schematic diagram of the structure of the CNC machined cutter head assembly of the present invention; Attached Figure 2 It is a schematic diagram of the local structure of the CNC machined cutter head assembly of the present invention.

[0012] In the above figures: 1, knife handle; 2, mounting seat; 3, insert; 4, moving block; 5, screw; 6, lower convex part; 7, first rack; 8, second rack; 9, knife grain; 10, mounting groove; 11, strip groove; 12, strip through hole; 13, stop block. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Embodiment 1: A CNC machined tool head assembly, comprising a tool handle 1, a mounting seat 2, an insert 3 and a moving block 4, wherein the mounting seat 2 is located at the lower end of the tool handle 1, the insert 3 is mounted on the mounting seat 2, and the moving block 4 is meshedly connected with the insert 3 and fixedly connected with the mounting seat 2; The moving block 4 has two strip-shaped through holes 12, and a screw 5 passes through the strip-shaped through holes 12 and is fixedly connected to the lower surface of the mounting seat 2. The lower surface of the moving block 4 also has a lower convex portion 6, and the side surface of the lower convex portion 6 has a mounting groove 10 for the knife grain 9 to be embedded. The knife grain 9 is embedded in the mounting groove 10 and fixed by a screw; A plurality of first racks 7 are arranged at equal intervals on a side surface of the insert 3 away from the mounting seat 2, and a plurality of second racks 8 are arranged at equal intervals on a side surface of the moving block 4 in contact with the insert 3. The first racks 7 and the second racks 8 are arranged in parallel.

[0014] The above-mentioned knife grain 9 is a triangular knife grain; a strip groove 11 is opened on the lower surface of the above-mentioned mounting seat 2, and the above-mentioned insert 3 is embedded in this strip groove 11 and fixedly connected to the mounting seat 2 by a plurality of screws; four blocks 13 are arranged on the lower surface of the above-mentioned mounting seat 2; the distance between the above-mentioned two adjacent first racks 7 is 0.3mm; the distance between the above-mentioned two adjacent second racks 8 is 0.3mm.

[0015] Embodiment 2: A CNC machined tool head assembly, comprising a tool handle 1, a mounting seat 2, an insert 3 and a moving block 4, wherein the mounting seat 2 is located at the lower end of the tool handle 1, the insert 3 is mounted on the mounting seat 2, and the moving block 4 is meshedly connected with the insert 3 and fixedly connected with the mounting seat 2; The moving block 4 has two strip-shaped through holes 12, and a screw 5 passes through the strip-shaped through holes 12 and is fixedly connected to the lower surface of the mounting seat 2. The lower surface of the moving block 4 also has a lower convex portion 6, and the side surface of the lower convex portion 6 has a mounting groove 10 for the knife grain 9 to be embedded. The knife grain 9 is embedded in the mounting groove 10 and fixed by a screw; A plurality of first racks 7 are arranged at equal intervals on a side surface of the insert 3 away from the mounting seat 2, and a plurality of second racks 8 are arranged at equal intervals on a side surface of the moving block 4 in contact with the insert 3. The first racks 7 and the second racks 8 are arranged in parallel.

[0016] The distance between the two adjacent first racks 7 is 0.4 mm; the distance between the two adjacent second racks 8 is 0.4 mm; the upper end of the tool handle 1 is mounted on the spindle of the CNC machining center; the mounting seat 2 is a stainless steel mounting seat.

[0017] When using a CNC-processed cutter head assembly, the movement and adjustment of the moving block in the horizontal direction can be achieved through the setting of the strip through-holes, thereby achieving the movement of the knife particles in the horizontal direction, and cooperating with the up and down movement of the processing spindle, the entire cutting edge of the knife particles can be used, which greatly improves the use efficiency of the knife particles and saves costs. At the same time, the frequency of tool change is reduced, and the overall processing efficiency is improved; secondly, the setting of the first rack and the second rack accurately quantifies the movement amount of the moving block, and realizes high-precision and accurate movement of the moving block, that is, the knife particles, thereby ensuring that each section of the cutting edge of the knife particles is fully utilized, with a clever structure and high efficiency; thirdly, the detachable setting of the insert is convenient for disassembly and replacement. When the teeth on the insert are broken, they can be replaced promptly and quickly to ensure processing efficiency; thirdly, the setting of the stopper plays a limiting role on the moving block to prevent the knife particles from being thrown out with the high-speed rotation of the moving block during processing, thereby ensuring the safety of the knife.

[0018] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC machined cutter head assembly, characterized in that: The tool comprises a tool handle (1), a mounting seat (2), an insert (3) and a moving block (4), wherein the mounting seat (2) is located at the lower end of the tool handle (1), the upper end of the tool handle (1) is mounted on a CNC machining center spindle that can move up and down, the insert (3) is mounted on the mounting seat (2), and the moving block (4) is meshedly connected to the insert (3) and fixedly connected to the mounting seat (2); The movable block (4) has two strip-shaped through holes (12), and a screw rod (5) passes through each of the strip-shaped through holes (12) to be fixedly connected to the lower surface of the mounting seat (2). The lower surface of the movable block (4) also has a lower convex portion (6), and a side surface of the lower convex portion (6) has a mounting groove (10) for a triangular blade particle (9) to be embedded. The blade particle (9) is embedded in the mounting groove (10) and fixed by a screw. A plurality of first racks (7) are arranged at equal intervals on a surface of a side of the insert (3) away from the mounting seat (2), and a plurality of second racks (8) are arranged at equal intervals on a surface of a side of the moving block (4) in contact with the insert (3), and the first racks (7) and the second racks (8) are arranged in parallel and perpendicular to each other in the length direction of the bar-shaped through hole (12).

2. The CNC machined cutter head assembly according to claim 1, characterized in that: A strip groove (11) is formed on the lower surface of the mounting seat (2), and the insert (3) is embedded in the strip groove (11) and fixedly connected to the mounting seat (2) by means of a plurality of screws.

3. The CNC machined cutter head assembly according to claim 1, characterized in that: The distance between two adjacent first racks (7) is 0.1 mm to 10 mm.

4. The CNC machined cutter head assembly according to claim 1, characterized in that: The distance between two adjacent second racks (8) is 0.1 mm to 10 mm.

5. The CNC machined cutter head assembly according to claim 1, characterized in that: The mounting seat (2) is a stainless steel mounting seat.

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