CN115178879A - Method and equipment for producing metal saw blade or cutter - Google Patents

Abstract

The invention discloses a production device and a production method of a cutting tool, and particularly relates to a production method and a production device of a metal saw blade or a cutter. A method for producing a metal saw blade or a cutter comprises the following steps: the workpiece to be processed is arranged between two sets of cooling clamping mechanisms on an operation table of laser modification equipment, the two sets of cooling clamping mechanisms which are symmetrically arranged clamp and cool the working surface of the workpiece to be processed, the laser head modifies the working surface, the two sets of cooling clamping mechanisms loosen the workpiece to be processed simultaneously after modification, the modified working surface is pushed forwards by the material receiving and discharging disc, the cooling clamping mechanisms and the laser head modify the next working surface, and the cooling temperature of the cooling clamping mechanisms is controlled by the cooling device. The invention has the characteristics of precious alloy raw material saving, high processing efficiency, simple process, strong controllability, low equipment cost and long service life of the processed saw blade or cutter.

Description

Production method and equipment of a metal saw blade or cutter

technical field

The invention relates to a production equipment and a production method of a cutting tool, in particular to a production method and equipment of a metal saw blade or cutter.

Background technique

In the world and even in China, advanced laser surface modification technology has already been applied. However, in the field of band saw blades, including metal band saw blades and carbide band saw blades or cutters, because the thickness is less than 2.5mm, it cannot be cooled quickly and easily deformed, so the laser surface modification technology cannot be used in the most critical working surface. Modification of the working part.

Especially the hard alloy saw blade with wide development prospect, its current production process is after heat treatment, leave a gap on the working surface of the back material, weld spherical or cylindrical imported hard alloy material with imported resistance welding machine, and then use imported The grinder grinds for many times, and the remaining working surface only accounts for about 1/3--1/5 of the original weight. The welding process is one tooth welding, and the grinding is one tooth grinding. The production line composed of these two processes has an average import price of about 10 million yuan, and the annual output does not exceed 30,000 meters under the condition of four shifts per day. The company's more than ten production lines of cemented carbide saw blades can no longer meet the needs of the market. It is particularly important to note that resistance welding machines and imported cemented carbide raw materials are all monopolized by foreign technology. Superalloys and titanium alloys are inseparable raw materials for aviation and other military industries, and many of them must use carbide saw blades.

The cutting process of toothed saw blades for all materials, including wood, food, black and non-ferrous metal materials, etc., is actually the process of chip removal and chip removal on both sides of the saw blade by the teeth, so the performance of the layer near the tip of the sawtooth rake is as high as possible. It is important that the specifications and tooth types of saw blades are about greater than 0.1 and less than 0.6. Of course, the comprehensive mechanical properties of the backing material of the saw blade also determine the use effect and life of the saw blade.

SUMMARY OF THE INVENTION

The present invention is to solve the above-mentioned technical problems, and provides a metal saw blade or cutter production method and equipment, which has the advantages of saving precious alloy raw materials, high processing efficiency, simple process and strong controllability, low equipment cost, processing The saw blade and cutter have the characteristics of long service life.

A production method for a metal saw blade or cutter, the steps are as follows: a workpiece to be processed is installed between two sets of cooling and clamping mechanisms on an operating table of a laser modification equipment, and the two sets of symmetrically arranged cooling and clamping mechanisms are arranged on the workpiece to be processed. The working face is clamped and cooled while the laser head modifies the working face. After modification, the two sets of cooling and clamping mechanisms release the workpiece to be processed at the same time. The clamping mechanism and the laser head modify the next working surface, and the cooling temperature of the cooling clamping mechanism is controlled by the cooling device.

The thickness of the above-mentioned workpiece to be processed is 0.05-2.5mm.

A production equipment for metal saw blades or cutting knives, which includes a laser modification equipment operating table, a laser head and a receiving and unloading tray. Two sets of cooling and clamping mechanisms for clamping workpieces to be processed are installed on the modification equipment operating table. The cooling device is respectively connected with the medium inlet of the cooling clamping block of the cooling clamping mechanism through the cooling medium inlet pipe, the cooling device is respectively connected with the medium outlet of the cooling clamping block through the cooling medium outlet pipe, and each cooling medium inlet pipe and cooling medium outlet pipe are connected with the cooling device. connect.

The above-mentioned two sets of cooling and clamping mechanisms have the same structure and are simultaneously clamped and released. The cooling and clamping mechanism is composed of a hollow clamping block and a controller that controls the clamping and loosening actions of the clamping block.

The above-mentioned cooling clamping block is a metal hollow structure, and the working surface is made of copper alloy.

The thickness of the above-mentioned workpiece to be processed is 0.05-2.5mm.

Owing to adopting the above-mentioned technical scheme, the present invention has the following characteristics and effects:

(1) The present invention can process 20-40 pieces in batches on the base material preparation on the milling machine with a special milling cutter, while the existing traditional process leaves a gap on the working surface, which cannot be processed with a milling machine, often It can only be cut one by one with a laser, which is not only time-consuming but also costly.

(2) The laser surface modification of the working face in the present invention only modifies the working face, and the required working time is only shorter than the resistance welding time of the original process. After the laser modification, only the rake angle needs to be finely ground. Even fine grinding is not required, and in addition to resistance welding in the existing traditional process, in order to turn a ball or cylinder into a qualified working surface, rough grinding and fine grinding must be performed on one front corner, one rear corner and two sides. is time consuming and costly.

(3) Taking bimetal saw blades such as M42 and M51 as examples, the present invention may not consider the "synchronized shape" of high-speed steel and alloy steel or spring steel during laser welding and final heat treatment during the selection and heat treatment of the base material. It is easier to achieve the optimal principle, which can prolong the service life of the saw blade; the present invention only partially modifies the working surface, which obviously greatly reduces the tendency of "tooth punching". During the use of the saw blade, the tooth punching is a fatal accident, and a hard tooth remains in the saw mouth. , Everyone knows that the whole saw blade is often scrapped in an instant; the laser surface modification process and equipment are relatively mature technologies, and the production cost-effective M42 and M51 high-speed steel working face finished saw blades adjust the process and divide the tooth process. After adjustment, adding only one process to modify the surface of the working face by laser will significantly improve its performance and service life.

The invention has the characteristics of saving precious alloy raw materials, high processing efficiency, simple process and strong controllability, and low equipment cost.

Description of drawings

FIG. 1 is a schematic structural diagram of the production equipment of the metal saw blade or cutter of the present invention.

In the figure, 1. Workpiece to be processed, 2. Laser modification equipment console, 3. Cooling clamping mechanism, 4. Cooling clamping block, 5. Controller, 6. Cooling medium inlet pipe, 7. Cooling medium outlet pipe, 8. Cooling device, 9. Rewinding tray, 10. Laser head.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

A production method for a metal saw blade or cutter, the steps are as follows: the workpiece 1 to be processed is installed between two sets of cooling and clamping mechanisms 3 on a laser modification equipment operating table 2, and two sets of symmetrically arranged cooling and clamping mechanisms 3 While clamping and cooling the working face of the workpiece 1, the laser head 10 modifies the working face. After the modification, the two sets of cooling and clamping mechanisms 3 release the workpiece 1 at the same time. The completed working face is advanced forward, the cooling clamping mechanism 3 and the laser head 10 modify the next working face, and the cooling temperature of the cooling clamping mechanism 3 is controlled by the cooling device 8 .

A production equipment for metal saw blades or cutting knives, which includes a laser modification equipment operating table 2, a laser head 10, a laser head and a receiving and unwinding tray 9, and two sets are installed on the modification equipment operating table 2 for clamping and processing. The cooling and clamping mechanism 3 and the cooling device 8 of the workpiece 1 are respectively connected to the medium inlet of the cooling clamping block of the cooling clamping mechanism 3 through the cooling medium inlet pipe 6, and the cooling device 8 is respectively connected to the medium outlet of the cooling clamping block through the cooling medium outlet pipe 7 The cooling medium inlet pipe 6 and the cooling medium outlet pipe 7 are connected to the cooling device 8 .

The above-mentioned two sets of cooling and clamping mechanisms 3 have the same structure and are simultaneously clamped and released. The cooling and clamping mechanism 3 is composed of a hollow clamping block 4 and a controller 5 that controls the clamping and loosening actions of the clamping block 4 .

The above-mentioned cooling clamping block 4 is a metal hollow structure, and the working surface is made of copper alloy.

The cooling temperature of the above-mentioned cooling device 8 can control its reasonable cooling intensity according to different products. The cooling device 8 uses a cooling medium circulation device to cool the cooling clamping block 4 . The two controllers 5 of the two sets of cooling and clamping mechanisms 3 control the simultaneous release and clamping of the two cooling clamping blocks 4 .

The thickness of the above-mentioned workpiece to be processed is 0.05-2.5mm.

With the further improvement of materials such as alloying used by lasers, the use of lasers to modify working surfaces on high-quality substrates or backing materials is undoubtedly for the manufacture of various toothed saw blades, such as various products of Hunan Taijia New Material Technology Development Co., Ltd. , and created a new process of fast, excellent and economical.

For the products of Fujian Hengerda New Materials Co., Ltd., such as toothless cutters for cutting paper, leather, rubber, PVC materials and electronic materials, etc., the laser surface modification of the cutting edge is more conducive to large-scale production. On the basis of ensuring the comprehensive mechanical properties of the original blade body remain unchanged, the blade edge will be more durable, thereby greatly improving the service life.

It's just that the former is discontinuous laser surface modification, while the latter is segmented continuous laser surface modification. Of course, the latter is simpler and more effective!

In short, the limitation of factors such as inability to produce self-cooling effect and deformation on very thin workpieces is lifted, and advanced laser surface modification technology can be applied to similar workpieces.

The multifunctional low-temperature setting cooling and clamping mechanism of the present invention has multiple functions such as improving and controlling the cooling speed of the modified thin workpiece, preventing thermal deformation and positioning.

Laser surface modification is used for surface modification of metal materials, especially steel metal materials, and even high-speed steel and cemented carbide materials, including phase transformation hardening, fusion strengthening, alloying, cladding, amorphization and microcrystallization, Impact hardened. With a little modification of the gripper, it is easier to use one of the above six kinds of substrates with excellent comprehensive mechanical properties or focus on some special properties to complete the laser surface modification to produce continuous or intermittently coated saw blades. , can quickly cut rubber, graphite, ceramics, glass, polysilicon, single crystal silicon, gemstones and other materials. At present, a considerable part of such saw blades are imported.

Therefore, it is not an exaggeration to add the word "multi-function" in front of "cooling and clamping mechanism". Not only it can perform various functions such as heat dissipation, preventing thermal denaturation, positioning, etc., but also it can make advanced laser surface modification. The sexual technology has been successfully promoted, and a production line can be built on this basis, which can quickly produce a variety of products such as toothed saw blades, toothless saw blades and various cutting knives for various purposes with high quality and low price. Tight institutions” are fully worthy of the name.

Claims (6)

1. a production method of a metal saw blade or a cutter, is characterized in that the steps are as follows: the workpiece to be processed is installed between two sets of cooling and clamping mechanisms on the operating table of the laser modification equipment, two sets of symmetrically arranged cooling and clamping mechanisms The mechanism clamps and cools the working surface of the workpiece to be processed, while the laser head modifies the working surface. After modification, two sets of cooling and clamping mechanisms simultaneously release the workpiece to be processed. Push forward, the cooling clamping mechanism and the laser head modify the next working surface, and the cooling temperature of the cooling clamping mechanism is controlled by the cooling device. 2 . The method for producing a metal saw blade or cutter according to claim 1 , wherein the thickness of the workpiece to be processed is 0.05-2.5 mm. 3 . 3. A production equipment for a metal saw blade or a cutter, which comprises a laser modification equipment operating table, a laser head and a receiving and unwinding tray, and is characterized in that two sets of tools for clamping the workpiece to be processed are installed on the modified equipment operating table. Cooling and clamping mechanism, the cooling device is respectively connected with the medium inlet of the cooling clamping block of the cooling clamping mechanism through the cooling medium inlet pipe, the cooling device is respectively connected with the medium outlet of the cooling clamping block through the cooling medium outlet pipe, each cooling medium inlet pipe and cooling medium The outlet pipe is connected to the cooling device. 4. The production equipment of a metal saw blade or cutter according to claim 3, wherein the two sets of cooling and clamping mechanisms have the same structure and are clamped and released at the same time, and the cooling and clamping mechanisms are clamped by a hollow It consists of a block and a controller that controls the clamping and unclamping actions of the clamping block. 5 . The production equipment for a metal saw blade or cutter according to claim 4 , wherein the cooling clamping block is a metal hollow structure, and the working surface is made of copper alloy. 6 . 6. The production equipment for a metal saw blade or cutter according to claim 3, wherein the thickness of the workpiece to be processed is 0.05-2.5 mm.

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