What’re The Problems And Solutions That Often Occur In The Production Of Tapping Machines?

The Tapping Machine is the most widely used internal thread processing machine. As a kind of machine tool for thread processing, there must be more production and processing strength, and it is necessary to ensure the processing precision. Let’s briefly talk about the tapping machine. Problems and their solutions:

First, the four common problems in the tapping machine: the tap break, the tap wear too fast, the thread diameter is too large, the thread diameter is too small, the thread surface roughness value is too large.

Second, the corresponding solution to the above tapping machine problem:

1. The tap break should correctly select the diameter of the threaded bottom hole. The depth of the drill hole is to the required standard. Appropriately reduce the speed of mechanical cutting, according to the standard. Correct the tap and bottom hole when tapping the thread to ensure that the coaxiality meets the requirements. Ensure that the hardness of the workpiece meets the requirements, select the appropriate chuck, and replace the tap wear in time.

2. The diameter of the thread is larger than the diameter of the tap with reasonable accuracy. Choose the right cutting fluid and reduce the cutting speed appropriately. The coaxiality of the tap and the threaded bottom hole is corrected when tapping the thread, and the floating chuck is used. Appropriately reduce the rake angle and the back angle of the cutting cone. Remove the burrs from the sharpening tap and increase the length of the cutting cone as appropriate.

3. The diameter of the thread is too small to select the tap diameter of the appropriate precision grade. Appropriately increase the tap front angle and the cutting cone angle. Replace worn oversized taps. Use a lubricating cutting fluid.

4. The thread surface roughness value is too large, increase the tap front angle, reduce the cutting cone angle. Heat treatment is carried out to properly increase the hardness of the workpiece, and to ensure that the taper rake face has a low surface roughness value and a good lubricity cutting fluid is selected. Properly reduce the cutting speed. Replace worn taps.

When the tapping machine has problems, it needs to be dealt with in time.

Daily Maintenance Of Boring & Milling Head

After the boring and milling head is used, how should I do daily maintenance?

1. External maintenance of the boring and milling head. Mainly remove the dirt and rust on the surface of the machine tool and keep the transmission parts clean. Wipe the surface of the machine and the cover, no rust and no yellow spots; scrub each exposed screw, light bar and rack; fill the handles, screws, nuts and other parts to keep the machine appearance clean.

2. Boring and milling head table and guide rail maintenance. Wipe all parts of the workbench, check the gap between the retaining iron and the strip; check if the rail is pulled, burr and scrub the rail.

3. Boring and milling headstock and feed gearbox maintenance. Open the dust cover of the headstock and check the adjustment v-belt and the spindle clamp clamping lever. Clean each filter and oil tank; check the balance hammer wire rope fastening; scrub the rotary disc chute and adjust the strip.

4. Rear column maintenance. After scrubbing the bearing housing and guide surface, check the adjustment strip clearance.

5. Maintenance of the electrical part of the boring and milling head. Clean the electrical box and motor. Check the position of the electrical device, boring and milling head to ensure that the electrical device is fixed, safe and tidy. Operating system, and finally cut off the power.

6. Boring and milling head lubrication system maintenance. Clean the linoleum and oil sump to keep the oil hole and oil passage unblocked. Clean the cooling pump, filter and cooling box. Clean the filter to ensure that the oil cup is complete and keep the oil standard oil window bright.

Drilling Unit application range

The drilling unit is a relatively simple one-speed transmission mechanism. The basic principle is that the motor drives a gear shifting mechanism, which can realize functions such as boring, milling and drilling.

Drilling unit application range:

1. Since the tool feed and rotation are synchronized, very thin or soft materials can be processed efficiently.

2. adaptability, can easily adjust the diameter, pitch and stroke of the processing thread.

3. long stroke, a variety of accessories, you can easily replace the single-spindle tapping head into a multiple spindle head tapping head, which can meet the needs of small batches and large-volume production.

4. constantly respond to the user’s high-speed drilling process, drilling power head, wind power base type.

5. Spindle rotation is driven by electric power, feed and control. The Drilling Machine with the highest performance and price ratio by compressed air pressure can select the most suitable model from a wide range of models according to the processing conditions.

6. High-precision, high-rigidity drilling device with base structure. The spindle motor adopts high-performance, high-power motor with a wide range of types from low speed to high speed. The drilling tapping spindle head is a power component that can be drilled and tapped, or it can be equipped with a multiple spindle head to improve efficiency. It is a product with high precision requirements, and mass production products can be equipped with automation operations, such as motorcycle parts and auto parts, which require high and mass production.

How Does PLC Control Servo Motor?

Servo motor is mainly used for precise positioning and servo control, which is actually the position control of servo motor. In fact, the servo motor also uses two other working modes, namely speed control and torque control.

Speed control is generally realized by frequency converter. Servo motor is used for speed control, which is generally used for fast acceleration and deceleration or speed precise control occasions. Because relative to frequency converter, servo motor can achieve several thousand revolutions within a few millimeters. Because servo is closed-loop, the speed is very stable. Torque control is mainly to control the output torque of servo motor, also because of the fast response of servo motor.

The most important application of servo motor is positioning control. Position control is speed and position. Specifically, it is to control how fast the servo motor reaches where and exactly stops.

PLC controls the servo motor by controlling the transmitted pulse. It is the most commonly used way to send the pulse by physical means, that is to say, using the transistor output of PLC, which is generally adopted by low-end PLC. The medium and high-end PLC transmits the number and frequency of pulses to the servo driver through communication.
These two ways are just different channels of realization, but the essence is the same.

Multiple Spindle Head

Multiple spindle head can be divided into two types according to the range of motion of the spindle: adjustable and fixed.

Adjustable
It is not restricted by gears when adjusting the machining hole distance. It is suitable for processing a variety of uncertain hole parts and has a wide range of use. The disadvantage is that there is a lack of precision control, and the long-term use of the bit rate is slightly higher. It is suitable for enterprises that do not process a single piece and replace the processed parts for many years.

Fixed
The multiple spindle head is tailored according to the single-piece workpiece, that is, according to the spacing and arrangement of the parts, the dead spindles is fixed. In order to achieve single-spindle single-spindle, one-piece multiple spindle head standard solution.The fixed type of guide plate multiple spindle head is accurate and durable. When replacing the parts, there is a lot of space for payment and it is not hindered by the fixture. The processed products are more precise and the multiple spindle head are more durable.

Development Trend 0f Intelligent Upgrade 0f Construction Machinery

For a long time, most people’s impressions of construction machinery still remain in the scene of manual operation of excavators. In fact, under the pressure of change, the construction machinery industry has begun to accelerate the transformation of automation, intelligence and digitalization.

The construction machinery industry is not only a strategic industry that provides technical equipment for national infrastructure, but also an important segment of the equipment manufacturing industry.

Under the influence of this trend, the promotion of intelligent upgrading of products and industries will become the key to whether China’s construction machinery industry can stand in the international competition for strong forests in the future.

Intelligent development becomes the mainstream

At present, the intelligentization of the construction machinery industry and the development of intelligent engineering machinery, the most direct is the introduction of robots and the application of robotics. Nowadays, many companies in
the industry use robots for welding, painting and assembly on a large scale in the production process.

In the future, under the influence of multiple factors such as changes in technology development and changes in construction project requirements, the demand for integrated operation and intelligent control of construction machinery
applications will become higher and higher. Driven by the informatization and intelligentization boom, the goal of the development of a new generation of construction machinery will become increasingly clear and the pace will continue to
accelerate.

Roller Burnishing Tool–Rotary Broaching Head

Rotary punching tools work by converting the rotation of the tool into a cutting force.

Generally applicable to lathes, CNC automatic lathes, machining centers, drilling machines, etc. Blind holes can be machined, and the through holes have regular or irregular sides, such as hexagonal, square holes, custom stars, splines and other special shapes.

Roller Burnishing Tool–Rotary Broaching Head

Product performance and characteristics
1. It is not necessary to make tooling such as punches and electrodes, reduce auxiliary costs, and the quality is stable, the efficiency is greatly improved, and the versatility is strong.
2. The lathe works together to reduce the process and processing time. With this tool, the inner holes of the inner square, the inner hexagon and the like can be easily processed according to the needs of the user. When processing a six-hole with a pair of sides of 10 mm and a depth of 15 mm, it takes only 30 seconds to complete.
3. It is used for processing various types of material parts with workpiece hardness below HRC30°.

Instructions
1. This tool can be used for tool rotation or part rotation, which can be used on the car, milling, Drilling Machine and machining center. To ensure the machining accuracy, the tool must be matched with the center of the workpiece.
2. Processing speed: 800-2000 rev / min, feed: 0.02-0.1mm / rev, the amount of copper and aluminum parts can be increased by 2-3 times.

An Indian customer purchased an internal rotary broach. It is required to process 8 corner shapes and a straight shank with an OD of 40 mm for CNC lathes.

The following is a product picture for your reference.

The service life of this product is generally based on the customer’s usage. A component that is easily damaged is its punch.

Servo Tapping Unit –Introduction

High-performance, high-power servo motor and CNC system control make tapping of small aperture and blind hole more accurate and higher precision. The second origin can be set arbitrarily, and the processing efficiency is greatly improved. The maximum speed is 3,370 rpm. High-speed machining ensures high-precision thread machining of JIS class 2 (6H).

It can also be combined with multiple spindle head.This is a photo before the product packaging for your reference.

Product performance and features:
1. Because the tool feed and rotation are synchronized, very thin or soft materials can be processed efficiently.
2. The diameter, pitch and stroke of the machined thread can be easily adjusted.
3. Connect with PLC to realize data control, which can realize fast stroke fast feed, slow tapping, slow return wire, and quick return.
4. With long stroke and many types of accessories, it is convenient to replace the single-axis tapping head with multi-axis tapping head, which can meet the needs of users in small batches and large batches.

We can provide suitable models according to the tapping requirements of customers.

For motor products, there are many drilling holes and sleeve buckles involved in the process of parts processing. The traditional technology and equipment is to use drilling die to process holes one by one. For screw holes, the tap sleeve buckle should be replaced again, so the work efficiency is too low.

Taking a motor with a center height of 132 as an example, 6-8 fixed end holes need to be machined at both ends of the machine base. For drilling, if the traditional processing technology is adopted, the holes at both ends need to be completed in 6-8 times. If the multi-hole drilling die can be used, the holes at both ends can be completed twice, and the efficiency can be improved at least 3-4 times by adding the design of the processing process or the moving time of the position of the workpiece.

Of course, porous drills are limited by the travel space and capacity of the equipment, which may be more suitable for processing small-sized parts. Small-sized and large-volume parts processing, porous drilling will greatly improve the processing efficiency.

The role of cutting fluid in tapping drilling machine

(1) Lubricate the tool surface: reduce friction. Reduce cutting distortion, reduce cutting force, reduce tool wear and improve tool durability.
(2) Cooling tool and workpiece: reduce thermal deformation of tool，workpiece and improve tool durability. To ensure the dimensional accuracy of the hole.
(3) Protecting machined surface and anti-corrosion: When using internal and front chip removal, cutting fluid can prevent chips from scratching machined surface，scour the fine chips, debris tumors and attachments adhering to the surface of the workpiece. At the same time, oil film is formed on the surface of the hole to prevent rust.
(4) Chip removal and vibration absorption: The chips are washed out from the chip area with a certain pressure and flow site cutting fluid to achieve chip removal. Because the workpiece’s inner hole and drill pipe are filled with a certain pressure cutting fluid, the vibration and noise produced by cutting motion and friction can be reduced.

Characteristics of tapping drill machine:
———The tapping Drilling Machine has a large-sized column that is stable and can be displaced at a high speed of 60m/min without deformation.
——— Super large span base, adopting six-point support to purchase solid, high-speed displacement, no vibration, no deformation;
——— The three axes of the drilling and Tapping Machine can be moved at a high speed of 60m/min, which is fast and saves processing time.
—— Low inertia spindle design, direct drive of spindle, high stability, quick and accurate tool change of clamp tool library, tool change time is 1.4 seconds, in addition to parts processing, this drilling machine is very suitable for drilling small diameter holes; AC spindle servo motor with high tapping energy and humanized dialog-type medium area is adopted, which is easy to operate.