In order to simplify programming and ensure the generality of the program, a uniform standard has been established for the naming and orientation of numerically-controlled machine tools. It is specified that the linear feed axes are denoted by X, Y, Z, and are often called basic coordinate axes. The relationship between the X, Y, and Z axes is determined by the right-hand rule. As shown in the following figure, the thumb is pointing in the positive direction of the X axis, the index finger is pointing in the positive direction of the Y axis, and the middle finger is pointing to the Z axis. Positive direction.

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The circumferential feed axes of the X, Y, and Z axes are denoted by A, B, and C, respectively.

According to the right-handed spiral rule, as shown in the figure, with the thumb finger pointing in the +X, +Y, +Z direction, the index finger, middle finger, etc. are pointing in the +A, +B, +C direction of the circular feed motion.

The feed motion of the CNC machine tool is realized by the main shaft driving the tool movement, and some by the work table with the workpiece movement. The positive direction of the above coordinate axis is the direction in which the tool does not move and the tool performs the feed motion with respect to the workpiece. If the workpiece is moving, it is indicated by the letter “'”. According to the relationship of relative motion, the positive direction of the workpiece movement is just opposite to the positive direction of the tool movement, ie:

+X =-X', +Y =-Y', +Z =-Z',

+A =-A', +B =-B', +C =-C'

The negative direction of the two movements is also opposite to each other. The orientation of the machine axes depends on the type of machine and the layout of the components.

For lathes:

- The Z axis coincides with the axis of the spindle. Moving in the positive Z direction will increase the distance between the part and the tool;

- The X axis is perpendicular to the Z axis and corresponds to the radial movement of the turret tool holder. Moving in the positive direction of the X axis will increase the distance between the part and the tool;

The Y-axis (usually dummy) together with the X-axis and Z-axis form a coordinate system that follows the right-hand rule.

Carbon Desorption1

Compared with similar products at home and abroad, this series of equipment has significant technical advantages, which are mainly reflected in:

1. High gold desorption rate: the carbon-poor gold grade after desorption is less than or equal to 50g/t (the same industry products are generally less than or equal to 100g/t).

2. High primary electrolysis rate: the average electrolysis rate of desorption solution is ≥90%. (The products in the same industry are generally around 70%).

3. Accurate gold balance: the actual amount of gold obtained after desorption and electrolysis is consistent with the theoretical gold content in the gold-loaded carbon. (Products in the same industry generally have the phenomenon of "floating gold or accumulative funds", which causes the loss of gold in the processing process and makes the amount of gold unbalanced)

4. Efficient and easy to operate: The whole set of equipment adopts integrated design, signal acquisition, operation adjustment control and safety protection are automated to ensure high efficiency, easy operation, safety and reliability during the entire operation period.

5. Low operating cost: The equipment is made of real materials of special materials (mainly including high-quality insulation materials, all-tetrafluoroethylene insulation materials, fully imported aerospace-grade circulating pumps, high-resistance electric shock heating pipes, etc.). The power-consuming equipment adopts frequency conversion design to ensure the low cost of operation and maintenance while ensuring the desorption electrolysis index.

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Changchun Gold Research Institute Co.LTD , https://www.changchunmachine.com