Low product cost.
As we all know, high efficiency and low consumption are the key to the development of enterprises. In the production of bearings, the cost of various materials accounts for about 36% of the total product cost. Improving the utilization rate of materials is the best way to reduce product costs and improve efficiency.
How to improve the utilization rate of materials, how to achieve high-yield and low-consumption purposes, focusing on this issue, focusing on the improvement and reuse of the face knife has been a practical exploration. In the design of the end face tool, a new way was explored, which laid a foundation for the enterprise to improve the utilization of materials.
Improvement and Reuse of 2 End Face Tools 2.1 Analysis of Front End Tool Improvement Before Use The end face cutter is made of high speed steel material, which is applied on a multi-axis lathe and plays the role of flattening the workpiece end face. The length of a new end face knife is 150. Normally, the end face knife can not be used normally until about 90 degrees, because the top and bottom of the two front end face cutters on the tool holder of the clamping end face tool are 60mm apart, when the end face is When the length of the knife is less than about 90 mm, the back wire can not play the role of pressing the end face knife, and the running knife phenomenon will occur during the work, thus affecting the quality of the processed product. Therefore, when the end face cutter is used up to about 90 mm, it cannot be used normally, so that the utilization rate of the end face cutter is still less than 50%, and the tool material consumption is very amazing.
2.2 Measures taken In order to improve the utilization of the end face tools, the following measures were taken.
2.2.1 Tool shortening method In order to improve the utilization rate and resistance strength of the tool, the guide rail of the end face tool holder is moved forward by about 14 mm, and the end face knife is shortened from the original tool nose length of about 22 to about 8 mm. The smoothness of the guide rail of the tool holder is enhanced, the resistance strength of the end face cutter is improved, and the service life of the cutter is prolonged. The remaining length of the end face cutter is shortened from about 90 mm to about 76 mm. 2.2.2 Increase the top wire fastening method due to The top wire of the front and rear fastening blades on the tool holder of the clamping end face tool is 60 mm apart. When the length of the end face knife is less than about 90 mm, the rear top wire cannot be pressed against the end face knife and cannot be used normally. In this case, the hole of 06.5mm is drilled in the middle of the two wires, and the attack is made (down to page 47). The selection of the computer-aided design control system of the CNC machine can be stepped or servo controlled by the X, Y platform drive. When the motor is a moving body, the open-loop system will have a low-speed resonance and a serious step-down in the acceleration process. If the acceleration time is too short, the motor starting torque will be insufficient, resulting in excessive control system error, which affects the machining. Precision.
If the digital servo system is used, there will be a slight drop, but the machine has good acceleration performance, the pulse loss rate is reduced, and the actual control accuracy is very good. The servo control system is used as much as possible in the two-dimensional control machine system.
(Edit: Clock) (Continued from page 37) Less 8x1.2mm tap hole, equipped with a top wire that fastens the end face knife. When the tool holder is operated by the improved end face cutter, the running tool no longer occurs. The remaining length of the end face cutter is shortened from about 76mm to about 2.2.3. The double-faced edge method is usually used to process the bearing ring. Grinding the edge to use, the utilization rate is only 50%. In order to reduce the tool material consumption, according to the width of the end plate, the blade is opened on both sides of the end plate, as shown. The improved face knife not only saves time for grinding tools, but also doubles the utilization of tool materials.
2.2.4 Reuse of the end face cutter When the end face cutter is used up to about 58 mm, it cannot be used for the end face machining of the product. In order to improve the utilization of the tool material, the end face cutter head can be improved to be chamfered and can be used continuously.
2.3 Effect After adjusting the machine guide rail and improving the tool holder and tool, the following effects are obtained.
Since the smoothness of the end face tool guide rail transmission is enhanced, the resistance of the tool is improved, thereby prolonging the service life of the end face cutter.
Since the top wire of the fastening end face cutter is added to the tool holder, the running knife phenomenon is overcome, thereby ensuring the processing quality of the product.
After the face cutter adopts the shortening method and the double-faced edge method, the utilization rate of the tool material can be more than doubled.
Improved grinding of the face cutter head into a chamfering knife can continue to be used, greatly improving tool material utilization.
3 end tool design At present, the end face of the workpiece is still processed on a multi-axis lathe using a common end face cutter. As shown, the utilization rate of the common end face tool material is only 50%, and the utilization of the tool material is not maximized. Play, this is a factor in the high cost of products. In order to fully improve the utilization rate of tool materials, a new type of end face cutter was designed by referring to the method of double-faced edge cutter. The new tool is slightly improved in the basic dimensions of the original face cutter, as shown. If the new tool is developed and utilized, the utilization rate of the end tool material will be doubled, and the time for grinding the tool is saved to some extent. Therefore, the development and utilization of the new end face cutter has certain economic value and is worthy of development and utilization.
The conclusion of the original end face knife 4 proves that by adjusting the machine guide rail and improving the tool holder and the tool, the quality of the product is ensured, the service life of the end face knife is prolonged, the utilization rate of the tool material is greatly improved, and a good result is obtained. Economic benefits, a new way for enterprises to reduce product costs and improve product competitiveness in the market.
(Editor: Zhong Yuan)
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