MCD forming cutter manufacturing process

Abstract

The invention discloses an MCD forming cutter manufacturing process, which belongs to the technical field of handle type cutter manufacturing, and comprises the following steps: preparing materials, prefabricating a cutter bar, welding a blade, cutting the blade contour of a cutter by laser, and finally grinding the cutter on numerical control equipment for forming. The contour and the size of the MCD forming tool are formed in a laser cutting mode, the cutting precision is high, and the situation of chipping does not exist; the numerical control grinding equipment is adopted for polishing the blade of the cutter, and compared with a mode that a common grinding disc is adopted for polishing in the traditional technology, the machining range is wide, the cutter with the special-shaped contour can be fully polished, and the polishing effect is better. By adopting the method, the manufacturing process of the MCD cutter can be simplified, the manufacturing cost is reduced, and the qualification rate of the MCD cutter is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shank-type tool manufacturing, and in particular relates to a MCD forming tool manufacturing process. Background Art

[0002] At present, the traditional MCD tool manufacturing process uses grinding wheels to grind the tool contour and size in place. However, this production method has the disadvantages of being time-consuming and labor-intensive, and having a low pass rate. The grinding wheel will wear out as the usage time increases, resulting in the inability to grind the predetermined contour shape and size. In addition, the tool is prone to chipping during grinding with the grinding wheel, causing damage to the tool and increasing the cost of tool production. Summary of the invention

[0003] The purpose of the present invention is to provide a MCD forming tool manufacturing process, aiming to solve the technical problems in the above-mentioned prior art that the MCD tool is processed by grinding wheel, which is time-consuming and labor-intensive, has a low pass rate and high manufacturing cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A MCD forming tool manufacturing process comprises the following steps:

[0006] (1) Material preparation: selection of tool bar and blade;

[0007] (2) Prefabricated tool bar;

[0008] (3) Welding blades;

[0009] (4) Blade profile of laser cutting tool;

[0010] (5) Grinding tools: Grinding tools into shape on CNC equipment.

[0011] Preferably, in step (2), the reducing section at the end of the tool rod is first processed as a tool clearance section; then a blade mounting groove is processed in the reducing section of the tool rod, and the groove shape of the blade mounting groove matches the blade.

[0012] Preferably, in step (5), CNC grinding and single crystal grinding are included.

[0013] CNC grinding: polishing the blade edge on CNC equipment;

[0014] Single crystal grinding: Polishing the upper surface of the main cutting edge of the blade on CNC equipment.

[0015] Furthermore, in the single crystal grinding process in step (5), after the blade is polished, the notch on the blade edge is ground away.

[0016] Preferably, the edge band of the blade is ground on a five-axis CNC grinding device.

[0017] Preferably, the method further comprises step (6) a passivation machine: performing a rounding treatment on the cutting edge of the blade.

[0018] The beneficial effects of the above technical solution are as follows: compared with the prior art, the present invention uses laser cutting to form the contour and size of the MCD tool, with high cutting accuracy and no chipping; the blade of the tool is polished using CNC grinding equipment, which has a wide processing range compared to the conventional process of polishing with ordinary grinding discs, and can fully polish tools with special-shaped contours, with better polishing effects. The present invention can simplify the manufacturing process of the MCD tool, reduce the manufacturing cost, and improve the qualified rate of the MCD tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a structural schematic diagram of an MCD forming tool prepared in one embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle knife bar;

[0022] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0023] Figure 4 yes Figure 3 Schematic diagram of the cutting edge on the cross section of the middle blade;

[0024] Figure 5 is a comparative enlarged view of the cutting edge of the tool before and after grinding in an embodiment of the present invention;

[0025] In the figure: 1-tool bar, 2-blade, 3-reducing section, 4-blade mounting groove, 5-blade band, 6-cutting edge. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] An MCD forming tool manufacturing process provided by an embodiment of the present invention specifically includes the following steps:

[0028] (1) Material preparation: selection of tool holder and MCD blade. The length and width of the MCD blade are 3mm*2.5mm, and the thickness is 0.5mm; the tool holder is a bar stock.

[0029] (2) Prefabricated tool bar:

[0030] 1) Step difference: Figure 2 As shown, a diameter reducing section 3 is processed at the end of the tool rod 1 to serve as a tool clearance section;

[0031] 2) Grooving: A blade mounting groove 4 is machined on the reducing portion of the shank 1 , and the groove shape of the blade mounting groove 4 matches the blade 2 .

[0032] (3) Positive air welding: weld the blade to the position of the blade mounting groove 4.

[0033] (4) Laser cutting tool blade profile: Cut out the blade profile of the tool.

[0034] (5) Grinding tool: The blade 2 of the grinding tool is formed. The specific grinding process is as follows:

[0035] 1) CNC grinding: polish the edge band 5 of the blade 2 on a CNC machine. Here, the edge band refers to the width of the main cutting edge on the tool. Figure 3 shown.

[0036] 2) Single crystal grinding: Polish the upper surface of the main cutting edge of the blade on a CNC machine to remove the notch on the cutting edge. Figure 5 shown.

[0037] (6) Passivation machine: Figure 4 As shown, the cutting edge 6 of the blade is subjected to a smooth transition process. The passivation machine is a grinding wheel specifically used for grinding the tip of the blade.

[0038] At this point, the MCD forming tool is completed. Figure 1 shown.

[0039] In summary, the present invention has the advantages of simple process, low production cost and high qualified rate, and specifically has the following beneficial effects:

[0040] 1. The contour and size of the MCD tool are formed by laser cutting, which has high cutting accuracy and can accurately cut the MCD tool into a predetermined shape and size without chipping.

[0041] 2. The five-axis CNC grinding equipment is used to polish the cutting edge of the tool. Compared with the conventional polishing method using ordinary grinding discs, the present invention can fully polish the tool with special-shaped contours, and the polishing effect is better.

[0042] 3. In the manufacturing process of the present invention, the notch on the cutting edge is ground off, which can extend the service life of the tool.

[0043] In the above description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed above.

Claims

1. A MCD forming tool manufacturing process, characterized in that: The following steps are involved: (1) Material preparation: selection of tool bar and blade; (2) Prefabricated tool bar; (3) Welding blades; (4) Blade profile of laser cutting tool; (5) Grinding tools: Grinding tools into shape on CNC equipment.

2. The MCD forming tool manufacturing process according to claim 1, characterized in that: In step (2), the end of the tool rod is firstly machined to reduce the diameter as a tool clearance section; then a blade mounting groove is machined on the reduced diameter portion of the tool rod, and the groove shape of the blade mounting groove matches the blade.

3. The MCD forming tool manufacturing process according to claim 1, characterized in that: In step (5), including CNC grinding and single crystal grinding, CNC grinding: polishing the blade edge on CNC equipment; Single crystal grinding: Polishing the upper surface of the main cutting edge of the blade on CNC equipment.

4. The MCD forming tool manufacturing process according to claim 3, characterized in that: In the single crystal grinding process in step (5), after the blade is polished, the notch on the blade edge is ground away.

5. The MCD forming tool manufacturing process according to claim 3, characterized in that: The edge band of the blade is ground on a five-axis CNC grinding device.

6. The MCD forming tool manufacturing process according to claim 4, characterized in that: The method also includes step (6) a passivation machine: performing a rounding transition treatment on the cutting edge of the blade.

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