Diamond plane groove milling cutter

Abstract

The utility model relates to the field of woodworking tools. The diamond plane groove milling cutter comprises a cutter head and a cutter handle which is arranged in the center of one face of the cutter head and extends in the axial direction of the cutter head. A mounting hole is formed in the center of the tool holder, and a key groove is formed in the mounting hole; a plurality of blade seats are annularly and uniformly distributed on the edge of the cutterhead, and diamond blades are arranged on the blade seats; a plurality of arc-shaped chip grooves are further formed in the upper surface of the cutter head between the blade seats, the outer ends of the chip grooves are opposite to gaps between the blade seats, and the inner ends of the chip grooves extend obliquely upwards to the upper surface of the cutter head towards the side opposite to the rotating direction of the cutter head. According to the utility model, wood chips can be quickly discharged in the milling process of a large plane groove, and the device has positive significance in reducing the load of a motor and improving the processing quality.

Description

Technical Field

[0001] The utility model relates to the field of woodworking tools, in particular to a planar groove milling cutter. Background Art

[0002] A planar groove milling cutter is a milling cutter used for one-time forming and processing a planar groove with a large width on wood-based density boards, particle boards and other boards. The width of the groove processed by it is usually above 100 mm, which can greatly improve the processing efficiency of the planar groove. Especially in the processing of large-size grooves, forming can be achieved with one pass of the cutter, without repeated milling.

[0003] Traditional planar groove milling cutters usually include a tool shank for clamping on the tool holder of a driving shaft, and a saw blade-type cutter body arranged at one end of the tool shank; during use, it is vertically installed and the planar groove on the board is processed through horizontal feeding. However, for existing planar groove milling cutters, due to the large processing amount, the traditional saw blade-type cutter body structure cannot effectively discharge wood chips, resulting in an increased load on the motor and a greater risk of chipping.

[0004] In addition, due to the large amount of milling during processing itself and the large size of the cutter head, the deformation risk of the milling cutter is greater than that of ordinary woodworking tools during long-term use, resulting in poor processing accuracy. The traditional method considers improving the materials of the cutter body and the tool shank to enhance the overall anti-deformation stress performance, but this method will lead to a large increase in cost. Summary of the Invention

[0005] The purpose of the utility model is to provide a diamond planar groove milling cutter with smooth chip evacuation.

[0006] To achieve the above invention purpose, the technical solution adopted by the utility model is: a diamond planar groove milling cutter, including a cutter head and a tool shank arranged at the center of one side of the cutter head and extending along the axial direction of the cutter head; an installation hole is arranged at the center of the tool shank, and a keyway is arranged in the installation hole; a plurality of blade seats are evenly distributed in a ring shape along the edge of the cutter head, and diamond cutting edges are arranged on the blade seats.

[0007] A plurality of chip evacuation grooves are further arranged on the upper surface of the cutter head between the blade seats. The chip evacuation grooves are arc-shaped, the outer end of the chip evacuation groove is opposite to the gap between the blade seats, and the inner end extends obliquely upward to the upper surface of the cutter head on the side opposite to the rotation direction of the cutter head.

[0008] Preferably, the diameter of the cutter head is greater than 200 mm.

[0009] Preferably, multiple grooves with the vertical projection direction coinciding with the radial direction of the cutter head are provided on the outer side surface of the tool handle and the upper surface of the cutter head; a mating L-shaped reinforcing rib is provided in the groove, and the reinforcing rib is clamped in the groove; a notch is provided at the top of the reinforcing rib; further included is a set screw, which is sleeved on the outer side of the tool handle corresponding to the notch on the reinforcing rib and forms a threaded fit with the tool handle.

[0010] Preferably, eight groups of the reinforcing ribs and the grooves are provided.

[0011] Preferably, the number of blade seats on the cutter head is an integer multiple of 3, and the diamond cutting blades on three adjacent blade seats are respectively a lower inclined blade, an upper inclined blade, and a flat blade.

[0012] The beneficial effects of the present utility model are mainly reflected in that it can ensure the rapid discharge of wood chips during large-plane groove milling, which has a positive significance for reducing the motor load and improving the processing quality. The chip discharge groove provided between the blade seats on the upper surface of the cutter head, with its special arc shape and inclination method, can ensure the rapid discharge of wood chips. The preferably provided reinforcing ribs can greatly improve the structural strength of the tool handle and the cutter head, reduce the risk of deformation, and are especially suitable for the cutter head of a super-large-diameter plane groove milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a top view structural schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 the view in the A-A direction of the structure shown in

[0015] Figure 3 is a combined schematic diagram of a preferred diamond cutting blade;

[0016] Figure 4 is a structural schematic diagram of the reinforcing rib;

[0017] Figure 5 is a structural schematic diagram of the present utility model in the use state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As Figures 1-5 shown, a diamond plane groove milling cutter is mainly used for opening a large-width plane groove on the surface of a plate, and is mainly aimed at a milling cutter with a slot width greater than 200 mm. As Figure 1 shown, it is a top view structural schematic diagram of the present utility model, which includes a cutter head 1 and a tool handle 2 provided at the center of one side of the cutter head 1 and extending along the axial direction of the cutter head 1. The cutter head 1 and the tool handle 2 adopt an integral structure and are processed from the same blank to ensure good structural strength.

[0019] The cutter head 1 serves as the working main body of the present utility model. The cutter handle 2 mainly plays the roles of installation and transmission, and can be simply regarded as the cutter shaft of the whole cutter. Regarding its installation form, generally, an installation hole 3 is provided in the center of the cutter handle 2, and a keyway 4 is provided in the installation hole 3. It is sleeved on the main shaft through the installation hole 3 to form a key connection. Of course, in the case of a relatively small size, for example, when the size of the cutter head 1 is about 100 mm, it can also adopt the way of clamping the cutter handle. At this time, the cutter handle 2 is generally a solid cutter handle of 1 / 2 inch or 1 inch.

[0020] On the edge of the cutter head 1 of the present utility model, a number of blade seats 5 are evenly distributed in a ring shape, making the whole in a serrated shape, and diamond blades 6 are provided on the blade seats 5. The number of blade seats 5 is most commonly between 70 and 100, and the blade shape can adopt a full flat blade, or as Figure 3 shown in, a combination of multiple blade shapes can be used to achieve better cutting effects. As Figure 3 shown in the form, the number of blade seats 5 on the cutter head 1 is an integer multiple of 3, such as 90 teeth, 99 teeth, 108 teeth, etc. The diamond blades 6 on three adjacent blade seats 5 are respectively a lower inclined blade, an upper inclined blade and a flat blade, and are arranged in a cyclic order.

[0021] Another biggest difference of the present utility model is that a number of chip removal grooves 7 are also provided on the upper surface of the cutter head 1 between the blade seats 5. The chip removal grooves 7 are arc-shaped, and the outer end of the chip removal groove 7 is opposite to the gap between the blade seats 5, and the inner end extends obliquely upward to the upper surface of the cutter head 1 on the side facing away from the rotation direction of the cutter head 1. As Figure 1 shown in, if the cutter head 1 rotates counterclockwise, the chip removal grooves 7 generally extend in the opposite clockwise direction, the overall path is arc-shaped, and extends obliquely upward from the outer end to the inner end. By arranging the chip removal grooves 7 between the blade seats 5 on the upper surface of the cutter head 1, their special arc shape and inclination method can ensure the rapid discharge of wood chips, play the roles of reducing the load of the driving motor, improving the processing quality, and reducing the risk of edge chipping.

[0022] For some milling cutters with extra-large sizes, due to the large size of the cutter head 1, considering the overall weight and the cooperation with the motor shaft, although the diameter of the cutter handle can be increased within a certain range, it cannot be too large. To ensure the overall structural strength and reduce the risk of deformation. It can also be, as Figure 1 and 2 shown in, a number of card slots 8 with the vertical projection direction coinciding with the radial direction of the cutter head 1 are provided on the outer side surface of the cutter handle 2 and the upper surface of the cutter head 1. A matching L-shaped strengthening rib 9 is provided in the card slot 8, and the shape of the strengthening rib 9 is as Figure 4As shown in the figure, the reinforcing rib 9 is clamped in the card slot 8. A notch 10 is provided at the top of the reinforcing rib 9. Further included is a set screw ring 11, which is sleeved on the outside of the tool handle 2 corresponding to the notch 10 on the reinforcing rib 9 and forms a threaded fit with the tool handle 2. Generally, there are eight groups of the reinforcing rib 9 and the card slot 8.

Claims

1. A diamond surface slot milling cutter, comprising a cutter disc (1) and a handle (2) arranged at the center of one side of the cutter disc (1) and extending along the axial direction of the cutter disc (1); a mounting hole (3) is arranged at the center of the handle (2), and a keyway (4) is arranged in the mounting hole (3); a plurality of blade seats (5) are evenly distributed in a ring shape on the edge of the cutter disc (1), and a diamond blade (6) is arranged on the blade seat (5); Features: A plurality of chip removal grooves (7) are also provided on the upper surface of the cutter disc (1) between the blade seats (5). The chip removal grooves (7) are arc-shaped, with the outer ends of the chip removal grooves (7) facing the gaps between the blade seats (5) and the inner ends extending obliquely upwards to the upper surface of the cutter disc (1) toward the side facing away from the rotation direction of the cutter disc (1).

2. The diamond surface slot milling cutter according to claim 1, characterized in that: The diameter of the cutter disc (1) is greater than 200 mm.

3. The diamond face slot milling cutter according to claim 2, characterized in that: The outer side surface of the tool handle (2) and the upper surface of the tool disc (1) are provided with a plurality of grooves (8) whose vertical projection direction coincides with the radial direction of the tool disc (1); a matching L-shaped reinforcing edge (9) is provided in the groove (8), and the reinforcing edge (9) is clamped in the groove (8); a notch (10) is provided at the top of the reinforcing edge (9); and a fixing ring (11) is also included, and the fixing ring (11) is sleeved on the outside of the tool handle (2) corresponding to the notch (10) on the reinforcing edge (9), and forms a threaded fit with the tool handle (2).

4. The diamond face slot milling cutter according to claim 3, characterized in that: The reinforcing edges (9) and the clamping grooves (8) are arranged in eight groups.

5. The diamond face slot milling cutter according to claim 4, characterized in that: The number of blade seats (5) on the blade disc (1) is an integer multiple of 3, and the diamond blades (6) on three adjacent blade seats (5) are respectively a lower bevel blade, an upper bevel blade and a flat blade.

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