Computer gong processing acceptance

When engaged in precision machining, carefully do the following before work:

1. Carefully read the shift records to understand the operation and existing problems of the machine tool in the previous shift.
2. Check that the safety protection, brake (stop), limit and reversing devices are complete and in good condition.
3. Check the exposed guide rail surface, sliding surface, rotating surface and worktable of the machine tool. If there are tools, obstacles, impurities, oil stains and chips in the work center of computer gongs processing plant, they must be cleaned, wiped and oiled.
4. Check that the oil quantity of the oil storage part of the lubrication system meets the requirements and the sealing is good. The oil mark, oil window, oil cup, nozzle, oil line, felt, oil pipe and oil distributor shall be complete and in good condition and installed correctly. According to the performance requirements of lubrication diagram, carry out manual oil filling or motor-driven pump oiling, and check whether oil is coming from oil window in large gantry machining center.
5. Check whether there are new pulling, grinding and bumping on the working table, guide rail surface and main sliding surfaces of the machine tool. If any, inform the team leader or equipment personnel to check together and make records.
6. Check that the mechanical, hydraulic and pneumatic operators, such as C, valve, switch should be in the non working position.
7. Check that the electrical distribution box should be closed firmly and the electrical grounding is good.
8. If the machine tool is shut down for more than one shift, it shall run in idle for more than five minutes according to the operation procedures and requirements specified in the manual and the use of hydrostatic device.

1、 Acceptance requirements

1. Appearance inspection

(1) Check whether the finish of machined parts meets the drawing requirements.

(2) Check whether the surface of machined parts is damaged, rusted and bruised, and whether the thread shape and angle are correct.

(3) If the above problems are found, detailed records shall be made for future reference.

1. Quantity acceptance

(1) Based on the supply contract and processing voucher, check the material, specification and quantity of processed parts strictly against the drawings, and check them one by one.

(2) Make a record of quantity acceptance, indicating the place, time, participants, type, product name, quantity to be arrived and actually arrived.

1. Quality acceptance

(1) Assembly shall be carried out in strict accordance with the requirements and procedures of the general assembly drawing.

(2) Record carefully during quality acceptance. In case of quality problems of machined parts, the outsourcing processing unit shall be informed of the details in writing. Decide whether to return or replace according to the situation.

(3) In case of special requirements, the processing unit can be consulted for joint acceptance and assembly, and the acceptance documents can be signed after the installation is qualified.

2、 Acceptance procedure

1. After the processing parts of large mechanical parts are received, the full-time acceptance personnel shall be sent to check and accept the material, specification, model and quantity of the processed parts according to the requirements of the contract drawings.
2. The acceptance period is generally 1-2 days. The special situation depends on the effect of use. In case of quality problems, we can return the products to the processing unit, claim for compensation, and bear the economic losses of the processing unit.
3. Generally, the processing contract signed by the non production department will be directly accepted by the user department, and the acceptance report will be filled in.
4. If the unqualified parts are accepted by experience, the acceptance personnel must handle the maintenance and return procedures within the specified acceptance period.
5. For the acceptance of special precision machining parts, the full-time acceptance personnel shall organize relevant personnel for joint acceptance, and fill in the acceptance report in detail. For the unqualified parts, fill in the inspection form in detail. CNC machining is the condition to improve the machining accuracy and determine the selection direction of the parts outsourcing manufacturer in the future.