A low-cost high-efficiency integrated PCD ball corn milling cutter

Abstract

The utility model discloses a low -cost high -efficient integral type PCD ball head corn milling cutter, including by upper to down integral moulded spherical cutter head, connecting column, handle and tool apron in proper order, the both sides of spherical cutter head front end all are set up with the chip groove, and the inner wall of two chip grooves all sets up the tool groove, and the tool groove all is by upper to set up with a plurality of in proper order along the inner wall of two chip grooves, and the inside of each tool groove all is provided with PCD blade. This low -cost high -efficient integral type PCD ball head corn milling cutter, through setting up the PCD blade on spherical cutter head, can multi -blade work simultaneously, guarantee the processing efficiency, and the spiral encircling setting of PCD blade, the cutting force of this cutter is smaller, and it is not easy to shake the sword, compared with traditional milling cutter, this cutter does not need to adopt the separate hard alloy cutter layer to cut the rough machining, and then adopts the step of climbing surface finishing, has the high efficiency, and the milling cutter PCD blade area is smaller, can increase PCD material utilization, thereby makes cutter overall cost reduction.

Description

Technical Field

[0001] This utility model relates to the field of non-ferrous metal processing technology, and in particular to a low-cost, high-efficiency integrated PCD ball end mill. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, the cutting teeth sequentially and intermittently remove the excess material from the workpiece. Milling cutters are mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces. A corn milling cutter is a special type of milling cutter, named for its cutting edges that resemble the toothed arrangement of corn kernels. The cutter body has multiple staggered cutting edges with wavy or toothed edges, similar to the arrangement of kernels on a corn cob. The number of cutting edges is typically 4, 6, or more.

[0003] Currently, milling cutters have limited processing range, only capable of forming smaller spherical sockets or spherical contours. When machining larger spherical sockets, roughing with carbide tools is required first, followed by finishing with surface climbing, resulting in low processing efficiency. Furthermore, traditional milling cutters have long cutting edges, which are prone to vibration, leading to rough product surfaces and substandard surface quality. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a low-cost, high-efficiency integrated PCD ball end mill. This tool can adapt to the milling of large ball sockets or spherical contours, and has the advantages of high efficiency and low cost.

[0005] To solve the above-mentioned technical problems and achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution:

[0006] The technical solution of this utility model is: a low-cost and high-efficiency integrated PCD ball end mill, comprising a ball-shaped cutter head, a connecting post, a cutter shank, and a cutter holder integrally formed from top to bottom. Chip removal grooves are provided on both sides of the front end of the ball-shaped cutter head. The two chip removal grooves are spirally arranged downward along the surface of the ball-shaped cutter head. Cutting grooves are provided on the inner walls of the two chip removal grooves. Multiple cutting grooves are arranged from top to bottom along the inner walls of the two chip removal grooves. A PCD insert can be detachably installed inside each cutting groove.

[0007] Furthermore, the handle has an inlet chamber, the spherical blade has an outlet chamber, and each blade groove has an outlet hole on one side of the PCD blade. The outlet hole is connected to one end of the outlet chamber, and the other end of the outlet chamber is connected to the inner cavity of the inlet chamber.

[0008] Furthermore, the tail end of the tool holder is provided with a liquid inlet hole, and the rear end of the liquid inlet hole is designed to be open. The front end of the liquid inlet hole is connected to the rear end of the liquid inlet chamber. Connecting grooves are provided on both sides of the surface of the tool holder.

[0009] Furthermore, a chamfered ring is provided between the connecting post and the tool holder, and the surface of the chamfered ring is designed to be smooth.

[0010] Furthermore, the rear end of the chip removal groove extends downward around the surface of the connecting post.

[0011] Furthermore, the diameter of the connecting post is smaller than the diameter of the tool holder.

[0012] Furthermore, both the handle and the connecting post have a smooth surface design.

[0013] Furthermore, an annular groove is formed around the surface of the tool holder.

[0014] The beneficial technical effects of this utility model are:

[0015] (1) A low-cost and high-efficiency integrated PCD ball end mill, by setting PCD inserts on the ball end mill, the tool can work with multiple blades at the same time compared with traditional tools, ensuring machining efficiency. The spiral arrangement of the PCD inserts realizes discontinuous cutting edges, making the cutting force of the tool smaller and less prone to vibration, ensuring the surface finish of non-ferrous metals. Compared with traditional end mills, this tool does not require the use of a separate carbide tool for roughing and then the step of surface finishing. It has high efficiency. At the same time, the PCD insert area of ​​the end mill is small, which can increase the utilization rate of PCD material, thereby reducing the overall cost of the tool.

[0016] (2) A low-cost and high-efficiency integrated PCD ball end mill, by setting a connecting post, makes the tail of the ball end mill have a relatively small neck, which allows the ball end mill to wobble at a small angle during processing, avoiding the occurrence of zero linear velocity and increasing stability. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front sectional view of the structure of this utility model;

[0019] Figure 3 This is a top view schematic diagram of the structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of the present invention.

[0021] The numbers and letters in the diagram represent the names of the corresponding components:

[0022] 1. Tool holder; 11. Annular groove; 12. Chamfered ring; 2. Connecting post; 3. Ball-shaped tool head; 4. Chip removal groove; 5. Tool groove; 6. PCD blade; 7. Liquid outlet; 8. Liquid inlet chamber; 81. Liquid outlet chamber; 9. Tool holder; 91. Liquid inlet. Detailed Implementation

[0023] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] See appendix Figures 1-4 As shown, a low-cost and high-efficiency integrated PCD ball end mill includes a ball-shaped cutter head (3), a connecting post (2), a tool holder (1), and a tool holder (9) integrally formed from top to bottom. Chip removal grooves (4) are provided on both sides of the front end of the ball-shaped cutter head (3). The two chip removal grooves (4) are spirally arranged downward along the surface of the ball-shaped cutter head (3). The rear end of the chip removal grooves (4) extends downward to the surface of the connecting post (2). Tool grooves (5) are provided on the inner walls of the two chip removal grooves (4). Multiple tool grooves (5) are arranged from top to bottom along the inner walls of the two chip removal grooves (4). PCD inserts (6) can be detachably installed inside each tool groove (5).

[0025] By setting PCD inserts (6) on the ball head (3), when the tool is mounted on the machining center via the tool holder (9), multiple PCD inserts (6) can work simultaneously to cut the surface of the non-ferrous metal when the machining center drives the tool to process the non-ferrous metal. Through the design of the ball head (3), when the ball head (3) gradually penetrates into the inner cavity of the non-ferrous metal, the spiral arrangement of multiple PCD inserts (6) realizes a discontinuous cutting edge, making the cutting force of the tool smaller, less prone to vibration, ensuring the smoothness of the non-ferrous metal surface. In addition, the area of ​​the PCD inserts (6) in the tool is small, which is more convenient for welding and can also increase the utilization rate of PCD material, thereby reducing the overall cost of the tool.

[0026] Furthermore, the inside of the handle (1) is provided with a liquid inlet chamber (8), the inside of the spherical cutter head (3) is provided with a liquid outlet chamber (81), and the surface of each cutter groove (5) is provided with a liquid outlet hole (7) on one side of the PCD blade (6). The liquid outlet hole (7) is connected to one end of the liquid outlet chamber (81), and the other end of the liquid outlet chamber (81) is connected to the inner cavity of the liquid inlet chamber (8). The tail end of the cutter holder (9) is provided with a liquid inlet hole (91), and the rear end of the liquid inlet hole (91) is designed to be open. The front end of the liquid inlet hole (91) is connected to the rear end of the liquid inlet chamber (8). Both sides of the surface of the cutter holder (9) are provided with connecting grooves.

[0027] The tool holder (9) can be attached to the corresponding mounting base on the machining center via the connecting slot. When the tool is working, the machining center can inject cutting fluid with cooling and lubricating effects into the inner cavity of the inlet chamber (8) through the inlet hole (91), and then spray it out through the outlet chamber (81) and outlet hole (7) in sequence to cool and lubricate the PCD insert (6). This avoids excessive machining temperature and lubrication can also improve machining efficiency.

[0028] Furthermore, a chamfered ring (12) is provided between the connecting post (2) and the tool holder (1). The surface of the chamfered ring (12) is designed to be smooth. The diameter of the connecting post (2) is smaller than the diameter of the tool holder (1). The surfaces of both the tool holder (1) and the connecting post (2) are designed to be smooth. Through the smooth design of the chamfered ring (12), the waste chips discharged through the chip removal groove (4) can reach the surface of the chamfered ring (12) and be guided and dispersed, avoiding the problem that the tool cannot process normally because the waste chips accumulate on the surface of the connecting post (2).

[0029] Furthermore, an annular groove (11) is provided around the surface of the tool holder (1). By providing the annular groove (11), when the operator holds the tool holder (1) and installs the tool on the corresponding mounting seat on the machining center, the groove of the annular groove (11) can increase the friction, so that the tool will not easily slip from the hand.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low-cost, high-efficiency integrated PCD ball end mill, characterized in that: The device includes a spherical cutter head (3), a connecting post (2), a cutter shank (1), and a cutter holder (9) integrally formed from top to bottom. Chip removal grooves (4) are provided on both sides of the front end of the spherical cutter head (3). The two chip removal grooves (4) are spirally arranged downward along the surface of the spherical cutter head (3). Cutter grooves (5) are provided on the inner walls of the two chip removal grooves (4). Multiple cutter grooves (5) are arranged from top to bottom along the inner walls of the two chip removal grooves (4). A PCD cutter (6) can be detachably installed inside each cutter groove (5).

2. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, The handle (1) has an inlet chamber (8) inside, and the ball head (3) has an outlet chamber (81) inside. Each of the grooves (5) has an outlet hole (7) on one side of the PCD blade (6). The outlet hole (7) is connected to one end of the outlet chamber (81), and the other end of the outlet chamber (81) is connected to the inner cavity of the inlet chamber (8).

3. The low-cost, high-efficiency integrated PCD ball end mill according to claim 2, characterized in that, The tail end of the knife holder (9) is provided with a liquid inlet hole (91), and the rear end of the liquid inlet hole (91) is designed to be open. The front end of the liquid inlet hole (91) is connected to the rear end of the liquid inlet chamber (8). Both sides of the surface of the knife holder (9) are provided with connecting grooves.

4. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, A chamfered ring (12) is provided between the connecting post (2) and the tool holder (1), and the surface of the chamfered ring (12) is designed to be smooth.

5. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, The rear end of the chip removal groove (4) extends downward around the surface of the connecting post (2).

6. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, The diameter of the connecting post (2) is smaller than the diameter of the handle (1).

7. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, The surfaces of both the handle (1) and the connecting post (2) are designed to be smooth.

8. The low-cost, high-efficiency integrated PCD ball end mill according to claim 1, characterized in that, The surface of the handle (1) is provided with an annular groove (11).

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