Pre-milling cutter with embedded cutter teeth
By using pre-milling cutters with embedded diamond composite blade teeth, the problems of frequent regrinding of existing pre-milling cutter teeth and increased cutting resistance due to support structures are solved, achieving efficient regrinding and extended tool life.
Patent Information
- Application Number
- CN202423119486.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The teeth of the pre-milling cutters of existing edge banding machines need to be re-sharpened after a period of use. After too many re-sharpenings, they become unusable, resulting in tool failure. Furthermore, the need for a support structure increases cutting resistance and makes chip removal difficult.
The cutting teeth, which adopt an embedded fixed structure, are made of diamond composite sheets with a thickness of 2.5 to 3.2 mm. They are embedded in the structural groove and welded to the cemented carbide substrate, eliminating the need for a support structure. The guide groove facilitates chip removal, and the cutting teeth are replaceable.
It improves tool regrinding efficiency, reduces cutting resistance, extends tool life, and lowers replacement frequency and production costs.
Smart Images
Figure CN223657241U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plate edge sealing equipment, especially a knife tooth embedded type pre-milling cutter. BACKGROUND
[0002] The pre-milling cutter of the edge banding machine is used for finishing the surface of the plate before veneering, the knife teeth of the cutter are fixed on the tooth seat of the cutter body by welding, in order to avoid the phenomenon of "tooth collapse" when the knife teeth cut the workpiece, a supporting structure needs to be arranged at the rear side of the knife teeth, which is usually formed by machining as part of the cutter body.
[0003] In order to ensure the cutting performance of the knife teeth, the knife teeth need to be ground after being used for a period of time, and the cutter is scrapped after the knife teeth are ground for several times. SUMMARY
[0004] The utility model aims at providing a knife tooth embedded type pre-milling cutter, the knife teeth of the pre-milling cutter adopt an embedded fixing structure, the cutter body supporting structure does not need to be arranged, and the cutter is convenient to replace.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A knife tooth embedded type pre-milling cutter, comprising a circular cutter body, a plurality of knife teeth are arranged on the circumference of the cutter body, a cutter shaft mounting hole is arranged at the center of the cutter body, characterized in that: a plurality of groups of structure grooves consistent with the number of knife teeth are arranged on the circumferential surface of the cutter body, each group of structure grooves comprises an embedded clamping groove and a chip removal groove, the embedded clamping grooves and the chip removal grooves in the same group are arranged adjacently, a knife tooth made of a diamond composite piece is embedded in the embedded clamping groove of each group of structure grooves, the knife tooth has a polycrystalline diamond layer and a hard alloy base body, the hard alloy base body of the knife tooth is welded and fixed with the embedded clamping groove, and the polycrystalline diamond layer is located on the side of the hard alloy base body facing the chip removal groove.
[0007] Further, the thickness of the knife tooth is 2.5-3.2 mm.
[0008] Further, each group of structures further comprises a through groove, and the embedded clamping grooves and the chip removal grooves in the same group are communicated with each other through the through groove.
[0009] Further, the embedded clamping groove and the chip removal groove are both waist-shaped grooves.
[0010] Further, the embedded clamping grooves and the chip removal grooves in the same group are arranged in parallel.
[0011] Further, the material of the cutter body is steel or alloy steel.
[0012] Further, the cutter shaft mounting hole is provided with a connecting key groove.
[0013] Further, two side surfaces of the cutter body are provided with lightening grooves. Advantages
[0014] 1) The cutter tooth is made of diamond composite sheet, has a large thickness size, and meets the machining requirements by using the strength of the cutter tooth itself, so that the cutter body support structure is omitted. The thickened cutter tooth can meet the machining requirements after being embedded and welded in the positioning groove, and can be guaranteed not to be damaged under normal impact.
[0015] 2) When the cutter tooth is ground, the interference problem caused by the cutter body support position does not need to be considered, and the grinding efficiency is higher.
[0016] 3) The cutting machining resistance of the cutter body without the support structure is small, and the chip removal is more smooth.
[0017] 4) After the cutter tooth is ground several times, the cutter tooth can be removed by heating and replaced with a new cutter tooth, and the cutter body can be reused without replacement. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view of the cutter tooth embedded pre-milling cutter.
[0019] Figure 2 It is a side view of the cutter tooth embedded pre-milling cutter.
[0020] Figure 3 It is a perspective view of the cutter tooth embedded pre-milling cutter.
[0021] Figure 4 It is Figure 3 A-A view.
[0022] Figure 5 It is a perspective view of the cutter body.
[0023] In the figure: 1-cutter body; 2-cutter tooth; 3-cutter shaft mounting hole; 4-connection key groove; 5-lightening groove; 6-structure groove; 7-embedded clamping groove; 8-chip removal groove, 9-lead-through groove; 10-poly crystalline diamond layer; 11-hard alloy base body. DETAILED DESCRIPTION
[0024] The utility model will be explained further in combination with the drawings.
[0025] As Figure 1 and 2 shown, the utility model relates to a cutter tooth embedded pre-milling cutter, including circular cutter body 1, the circumference of cutter body 1 is equipped with a plurality of cutter teeth 2, the center of cutter body 1 is equipped with cutter shaft mounting hole 3, cutter body 1 is installed on the edge sealing machine main shaft through cutter shaft mounting hole 3, cutter shaft mounting hole 3 is equipped with connection key groove 4, cutter body 1 is connected with the connection key on the edge sealing machine main shaft through the connection key groove 4 of cutter shaft mounting hole 3 to realize key connection, and the pre-milling cutter is driven by the edge sealing machine main shaft to rotate at high speed.
[0026] The cutter body is made of steel or alloy steel, and the two side surfaces of the cutter body 1 are provided with weight-reducing grooves 5, which help to reduce the overall weight of the pre-milling cutter.
[0027] As shown in Figure 3 and 5 , the circumferential surface of the cutter body 1 is provided with a plurality of groups of structure grooves 6 consistent with the number of cutter teeth 2, each group of structure grooves 6 including an embedded clamping groove 7 and a chip removal groove 8, the embedded clamping grooves 7 and the chip removal grooves 8 in the same group being arranged adjacently, and each embedded clamping groove 7 in each group of structure grooves 6 being embedded with a cutter tooth 2 made of a diamond composite sheet.
[0028] As shown in Figure 4 , the cutter tooth 2 made of a diamond composite sheet has a large size thickness, and the thickness of the cutter tooth is 2.5-3.2 mm, the cutter tooth 2 having a polycrystalline diamond layer 10 and a cemented carbide base 11, the cemented carbide base 11 of the cutter tooth 2 being welded and fixed to the side wall of the embedded clamping groove 7, and the polycrystalline diamond layer 10 being located on the side of the cemented carbide base 11 facing the chip removal groove 8.
[0029] As shown in Figure 5 , in order to facilitate the waste chips generated when the cutter tooth 2 cuts the workpiece to be discharged to the chip removal groove 8 in time, each group of structures further includes a through groove 9, the through groove 9 being located between the embedded clamping groove 7 and the chip removal groove 9, and the embedded clamping groove 7 and the chip removal groove 9 in the same group being communicated with each other through the through groove 9.
[0030] In the embodiment, the embedded clamping groove 7 and the chip removal groove 8 are both waist-shaped grooves, and the embedded clamping grooves 7 and the chip removal grooves 8 in the same group are arranged in parallel, which facilitates the formation of the structure grooves 6 on the circumference of the cutter body 1 by machining.
[0031] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. A pre-cutter with insertable teeth, comprising a circular cutter body, a plurality of teeth being provided on the circumference of the cutter body, and a cutter shaft mounting hole being provided in the center of the cutter body, characterized in that: The circumferential surface of the cutter body is provided with a plurality of groups of structure grooves consistent with the number of cutter teeth, each group of structure grooves comprising an embedded clamping groove and a chip removal groove, the embedded clamping grooves and the chip removal grooves in the same group being adjacently arranged, and a cutter tooth made of a diamond compact plate being embedded in the embedded clamping groove of each group of structure grooves, the cutter tooth having a polycrystalline diamond layer and a cemented carbide substrate, the cemented carbide substrate of the cutter tooth being welded and fixed with the embedded clamping groove, and the polycrystalline diamond layer being located on the side of the cemented carbide substrate facing the chip removal groove.
2. A pre-cutter according to claim 1, wherein: The thickness of the cutter tooth is 2.5-3.2 mm.
3. A pre-cutter according to claim 1, wherein: Each group of structure grooves further comprises a through groove, and the embedded clamping grooves and the chip removal grooves in the same group are in communication with each other through the through groove.
4. A pre-cutter according to claim 3, wherein: The embedded clamping grooves and the chip removal grooves are both waist-shaped grooves.
5. A pre-cutter according to claim 4, wherein: The embedded clamping grooves and the chip removal grooves in the same group are arranged in parallel.
6. A pre-cutter according to claim 1 wherein: The material of the cutter body is steel or alloy steel.
7. The insert pre-cutter of claim 1 wherein: The cutter shaft mounting hole is provided with a connecting key groove.
8. The insert pre-cutter of claim 1, wherein: The two side surfaces of the cutter body are provided with weight-reducing grooves.