Welded PCBN blade with chip breaking effect

Abstract

The utility model discloses a welded PCBN (polycrystalline cubic boron nitride) blade with a chip breaking effect, which belongs to the field of blades and is technically characterized by comprising a blade, a replacement mechanism and an anti-skid mechanism. The upper and lower surfaces of the rear side of the blade are provided with anti-skid mechanisms which ensure that the blade is more stable and firmer when clamped. When workpieces of different models, sizes and types need to be machined, the chip breaking effect is achieved, the fixing bolt is twisted to be taken out from the first screw groove formed in the side wall of the limiting plate and the second screw groove formed in the side wall of the limiting groove in a meshed and rotating mode, and the blade is clamped outside the anti-skid piece arranged on the surface of the clamping groove through clamping equipment. And the clamping stability is improved through the frosted material on the surface of the anti-skid piece, only the tool bit needs to be replaced, the whole blade does not need to be disassembled and replaced, and the use convenience of the blade is improved.

Description

Technical Field

[0001] The utility model relates to the field of blades, in particular to a welding PCBN blade with chip breaking effect. Background Art

[0002] In the machining industry, in the processing of hardened materials (HRC50-65), conventional carbide tools or high-speed steel tools cannot be used, and polycrystalline cubic boron nitride (hereinafter referred to as PCBN) is usually used as a cutting tool. Since PCBN materials are relatively expensive, PCBN materials are usually set on carbide blades as cutting tools. In actual processing, PCBN materials are used as the cutting part, and carbide blades are the carriers for fixing PCBN materials. At the same time, due to the characteristics of PCBN materials, it is impossible to press and form blade grooves to break chips or guide the flow of chips. Usually, the blades do not have chip breaker grooves, and can only be treated with different edge treatments. The current edge treatments are usually rounded and chamfered.

[0003] The existing blades weld the PCBN cutter head in the groove so that the first groove base can be used to open the chip breaker groove, realize the free design of the chip breaker groove parameters, and achieve a stable product processing effect, which changes the previous PCBN blade rake face processing is a simple plane and plane combination grinding by grinding wheel, and can only achieve a 0 degree rake angle or a negative rake angle. By adopting the manufacturing method of the utility model, the chip breaker groove can be accurately processed, and the manufactured PCBN blade can control the chip breaking and chip flow direction of the material, so that the chips do not affect the processing, which greatly improves the stability of the process.

[0004] However, the notch of the chip breaker of the existing blade is an integrally formed structure with the blade. When the blade is used to process different workpieces, chip breakers of different sizes are required for processing. In this case, different blades need to be used, and the blade needs to be disassembled from the tool clamping assembly as a whole. The blade with a different chip breaker groove needs to be replaced and recalibrated after the clamping. This takes a lot of time and reduces the efficiency of using the blade. Utility Model Content

[0005] The utility model aims to provide a welding PCBN blade with chip breaking effect, which is used to solve the problem that the notch of the chip breaker groove of the existing blade is integrally formed with the blade, but when the blade is used to process different workpieces, chip breakers of different sizes are required for processing, so different blades need to be used, and the blade needs to be disassembled from the tool clamping assembly as a whole, and the blade with different chip breaker grooves needs to be replaced and recalibrated after clamping, which takes a lot of time and reduces the efficiency of using the blade.

[0006] Therefore, the utility model provides a welding PCBN blade with chip breaking effect, including a blade, a replacement mechanism and an anti-slip mechanism. The front end side wall of the blade is provided with a replacement mechanism that can separately detach and install the tool assembly, and the upper and lower surfaces of the rear side of the blade are provided with an anti-slip mechanism to ensure that the blade is clamped more stably and firmly.

[0007] Preferably: the replacement mechanism includes a cutting edge, the cutting edge is arranged on the front end side wall of the blade, a cutting head is inserted in the cutting edge, limiting grooves are symmetrically arranged on the upper and lower sides of the cutting edge, limiting plates are symmetrically installed on the upper and lower sides of the cutting head, a first screw groove is arranged on the side wall of the limiting plate, a second screw groove is arranged on the outer side wall of the limiting groove, fixing bolts are installed in the first and second screw grooves, and chip breaking grooves are arranged on the front ends of both sides of the cutting head.

[0008] Preferably, the anti-slip mechanism comprises a clamping groove, the clamping groove is symmetrically arranged on the upper and lower outer walls of the blade, and an anti-slip sheet is arranged on the surface of the clamping groove.

[0009] Preferably, the cross-sectional dimensions of the cutter head and the cross-sectional dimensions of the cutting edge coincide with each other.

[0010] Preferably, the cross-sectional dimensions of the limiting groove and the cross-sectional dimensions of the limiting plate are consistent with each other.

[0011] Preferably, the threads arranged inside the first screw groove and the second screw groove are meshed with the threads arranged on the outer wall of the fixing bolt.

[0012] Preferably, the anti-slip sheet is a frosted structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a kind of tool which can be used for cutting and polishing workpieces of different sizes and types, and can be used for cutting and polishing workpieces of different sizes and types. The tool head is convenient to use and can be easily removed from the cutting edge by simply moving the tool head forward. The tool head is convenient to use and can be easily removed from the cutting edge by simply moving the tool head forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a front cross-sectional view of the replacement mechanism of the utility model.

[0017] In the figure:

[0018] 1. Blade; 201. Blade edge; 202. Blade head; 203. Limiting groove; 204. Limiting plate; 205. First screw groove; 206. Second screw groove; 207. Fixing bolt; 208. Chip breaker groove; 301. Clamping groove; 302. Anti-slip sheet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-2 The figure shows a preferred embodiment of the utility model, a welding PCBN blade with chip breaking effect, comprising a blade 1, a replacement mechanism and an anti-slip mechanism. The front end side wall of the blade 1 is provided with a replacement mechanism that can separately detach and install the tool assembly, and the upper and lower surfaces of the rear side of the blade 1 are provided with an anti-slip mechanism to ensure that the blade 1 is more stable and firm when clamped.

[0022] It should be noted that the replacement mechanism and the anti-slip mechanism of the present solution improve the convenience of using the blade 1.

[0023] Among them, the replacement mechanism includes a cutting edge 201, the cutting edge 201 is opened on the front end side wall of the blade 1, a cutting head 202 is inserted in the cutting edge 201, limiting grooves 203 are symmetrically opened on the upper and lower sides of the cutting edge 201, limiting plates 204 are symmetrically installed on the upper and lower sides of the cutting head 202, a first screw groove 205 is opened on the side wall of the limiting plate 204, a second screw groove 206 is opened on the outer side wall of the limiting groove 203, fixing bolts 207 are installed in the first screw groove 205 and the second screw groove 206, and chip breaking grooves 208 are opened on the front ends of both sides of the cutting head 202.

[0024] It should be noted that: in this scheme, the fixing bolt 207 is twisted to engage and rotate it out from the first screw groove 205 opened on the side wall of the limiting plate 204 and the second screw groove 206 opened on the side wall of the limiting groove 203, and the cutter head 202 is pulled forward to move it from the cutting edge 201. At the same time, the limiting plate 204 is pulled out of the limiting groove 203 to disassemble the original cutter head 202. The cutter head 202 is selected according to the size of the chip breaker groove 208 required, and the replacement cutter head 202 is inserted backward into the cutter head 202, so that the limiting plate 204 is aligned with the limiting groove 203 and inserted backward, the first screw groove 205 is aligned with the second screw groove 206, and the fixing bolt 207 is engaged and installed in the aligned first screw groove 205 and second screw groove 206, so that the cutter head 202 can be quickly replaced.

[0025] The cross-sectional dimensions of the cutter head 202 and the cutter edge 201 are consistent with each other.

[0026] It should be noted that: in this solution, the cutter head 202 is selected according to the size of the chip breaker groove 208 required, and the replaced cutter head 202 is inserted backward into the cutter head 202, so that the installation of the cutter head 202 is more stable.

[0027] The cross-sectional dimensions of the limiting groove 203 and the cross-sectional dimensions of the limiting plate 204 are consistent with each other.

[0028] It should be noted that: in this solution, the limiting plate 204 is aligned with the limiting groove 203 and inserted backward, the first screw groove 205 is aligned with the second screw groove 206, and the fixing bolt 207 is engaged and installed in the aligned first screw groove 205 and second screw groove 206, so that the tool head 202 can be quickly replaced.

[0029] The threads disposed inside the first screw groove 205 and the second screw groove 206 are meshed with the threads disposed on the outer wall of the fixing bolt 207 .

[0030] It should be noted that: in this scheme, the fixing bolt 207 is engaged and rotated to be removed from the first screw groove 205 opened in the side wall of the limiting plate 204 and the second screw groove 206 opened in the side wall of the limiting groove 203, and the replaced cutter head 202 is inserted backward into the cutter head 202, and the limiting plate 204 is aligned with the limiting groove 203 and inserted backward, and the first screw groove 205 is aligned with the second screw groove 206, and the fixing bolt 207 is engaged and installed in the aligned first screw groove 205 and second screw groove 206, so that the cutter head 202 can be quickly replaced, which facilitates more efficient and stable replacement and positioning.

[0031] Example 2

[0032] See also Figure 1-2 The anti-slip mechanism includes a clamping groove 301 , which is symmetrically arranged on the upper and lower outer walls of the blade 1 , and an anti-slip sheet 302 is arranged on the surface of the clamping groove 301 .

[0033] It should be noted that: in this solution, the blade 1 is clamped on the outside of the anti-slip sheet 302 provided on the surface of the clamping groove 301 by a clamping device, and the frosted material on the surface of the anti-slip sheet 302 increases the stability of the clamping.

[0034] Wherein, the anti-slip sheet 302 is a frosted structure.

[0035] It should be noted that: this solution increases the friction effect and improves the clamping stability.

[0036] The working process and principle of the utility model are as follows: when it is necessary to have a chip breaking effect during the processing of workpieces of different models, sizes and types, the fixing bolt 207 is twisted to engage and rotate it out from the first screw groove 205 opened on the side wall of the limiting plate 204 and the second screw groove 206 opened on the side wall of the limiting groove 203, and the cutter head 202 is pulled forward to move it from the cutting edge 201, and the limiting plate 204 is pulled out of the limiting groove 203 at the same time, so that the original cutter head 202 can be disassembled, and the cutter head 202 is selected according to the size of the chip breaker groove 208 required, and a newer one is added. Insert the replaced cutter head 202 backwards, align the limit plate 204 with the limit groove 203 and insert it backwards, align the first screw groove 205 with the second screw groove 206, engage and install the fixing bolt 207 in the aligned first screw groove 205 and the second screw groove 206, and the cutter head 202 can be quickly replaced. The blade 1 is clamped on the outside of the anti-slip sheet 302 set on the surface of the clamping groove 301 by the clamping device. The frosted material on the surface of the anti-slip sheet 302 increases the clamping stability. Only the cutter head 202 needs to be replaced, and there is no need to disassemble and replace the blade 1 as a whole.

[0037] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A welded PCBN insert with chip breaking effect, characterized in that: The invention comprises a blade (1), a replacement mechanism and an anti-skid mechanism. The front end side wall of the blade (1) is provided with a replacement mechanism for independently detachably installing a tool assembly. The upper and lower surfaces of the rear side of the blade (1) are provided with an anti-skid mechanism for ensuring that the blade (1) is more stable and firm when clamped.

2. A welded PCBN insert with chip breaking effect according to claim 1, characterized in that: The replacement mechanism comprises a blade (201), wherein the blade (201) is provided on a front end side wall of a blade (1), a blade head (202) is inserted into the blade (201), limiting grooves (203) are symmetrically provided on upper and lower sides of the blade (201), limiting plates (204) are symmetrically installed on upper and lower sides of the blade head (202), a first screw groove (205) is provided on a side wall of the limiting plate (204), a second screw groove (206) is provided on an outer side wall of the limiting groove (203), fixing bolts (207) are installed in the first screw groove (205) and the second screw groove (206), and chip breaking grooves (208) are provided on both front ends of the blade head (202).

3. A welded PCBN insert with chip breaking effect according to claim 1, characterized in that: The anti-slip mechanism comprises a clamping groove (301), wherein the clamping groove (301) is symmetrically arranged on the upper and lower outer walls of the blade (1), and an anti-slip sheet (302) is arranged on the surface of the clamping groove (301).

4. A welded PCBN insert with chip breaking effect according to claim 2, characterized in that: The cross-sectional dimensions of the blade head (202) match the cross-sectional dimensions of the blade edge (201).

5. A welded PCBN insert with chip breaking effect according to claim 2, characterized in that: The cross-sectional dimensions of the limiting groove (203) match the cross-sectional dimensions of the limiting plate (204).

6. A welded PCBN insert with chip breaking effect according to claim 2, characterized in that: The threads provided inside the first screw groove (205) and the second screw groove (206) are meshed with the threads provided on the outer wall of the fixing bolt (207).

7. A welded PCBN insert with chip breaking effect according to claim 3, characterized in that: The anti-slip sheet (302) is a frosted structure.

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