Mechanical monthly work summary

1, April 28, to complete the company's quality system documents, "Quality Manual" and "Procedure Documents" release, marking the company's TS16949 quality system through the standard operation into the second phase of the formal operation stage. In this stage, each relevant department of the company to continue to improve the quality of records, collation of statistics related to the work of each department / process performance indicators, for the next step in the company's internal audit to lay the foundation.

2, in the integrated management department with the cooperation of the use of close to half a month, for the lack of TS16949 quality management system knowledge of the departments and effective means of work, the organization of the company's logistics management personnel to carry out the system document training. Mainly make the grass-roots management personnel to understand the company's quality objectives, quality policy, and in the hope of getting the daily work in the implementation; combined with the actual work of each department to focus on explaining the departmental responsibilities and workflow, as well as the work process of each department needs to be left behind in the quality of the records and work interfaces, and the requirements of the formation of closed-loop management. Improve the overall quality awareness and the majority of grassroots managers of the quality management level.

3, according to the requirements of the standardized promotion plan, improve / design / production of the company's quality record forms, improve the quality record list. Total **** more than 160 quality record forms (documents), in addition to 8 kinds of need to oil printing, all the rest issued in place. June departments in the actual work gradually in accordance with the standard requirements/procedural documents stipulated in the workflow using the form record, to eliminate the previous work by verbal communication, follow-up no tracking verification defects. Must be able to make the company's work to get up.

4, guide the departments in accordance with the TS16949 quality management system to improve the quality of the department's records. Supervise the departments to designate the system operation specialists, responsible for the departmental system operation work, to assist the departmental leadership to improve the work of the department. Formation of regular meeting system, weekly regular inspection of the company's system operation status, and in the regular meeting of the group notification of incentives; at the same time, arrange for the next step in the work. We hope that through such activities to speed up the process of the company's standardization work, to promote management improvement.

Second, there are shortcomings and problems found

1, the product failure rate remains high: the proposed improvement measures are as follows

A, the quality of all quality personnel for professional skills, quality awareness of the work of responsibility and other training to enhance the centripetal force of inspectors.

B, the establishment of supplier quality management and performance appraisal procedures to increase the frequency of inspection, the quality of incoming materials for strict control.

C, statistical data of the quality control points, looking for the real cause, thorough improvement.

D, the organization of the departments set up a quality improvement team (qc team), especially to strengthen the control of the transfer machine, can be compared with the first and last, small batch trial production, improve the product qualification rate.

2, the lack of teamwork between the departments, the grassroots management of the negative lack of passion for work, low productivity.

A, improve the employee performance appraisal system. (Can be divided into A/B / C three grades)

B, the organization of the company's internal team activities. The use of off-season organization management training (internal/external/film and television materials)

C, in particular, to strengthen the team spirit of the training course on the performance of the work, the appropriate implementation of the award and penalty system

D, according to the process of each process beat, the professionals to rationally arrange the production process, the implementation of the yield target management.

Third, next month Work Plan

1, to assist in the internal audit training, and before the training to prepare the internal audit checklist (process audit checklist, product audit check, internal audit checklist) to provide the teacher review.

2, strengthen the quality assurance department within the daily work management, fully mobilize the enthusiasm of employees to avoid internal conflicts. Change the past inspector often in the office fault, enhance the initiative to cooperate with the consciousness, ready to implement the last elimination or the last drop coefficient. Enhance the process control, change the past process inspection process passive assessment-based (scrap assessment), less active assessment, poor staff quality awareness, improve product quality.

A work project and completion

Before the internship, the company organized some theoretical training, including safety knowledge. Theoretical training is mainly to allow us to quickly and comprehensively on the company's general and production content have an understanding.

This phase of the internship is mainly in the bridge box factory gold workshop internship. First of all, according to my hobby and characteristics of the leadership will be arranged in the metal workshop of the CNC lathe, follow the master Wang Xinghong to learn the relevant CNC knowledge, involving the lathe is HTC4596a.

Usually, I am in the master help at the same time, to the master to learn some programming knowledge (mainly turning), for which the master of the question is also patiently answered. With the passage of time, I also know nothing about programming from the beginning to now understand the program and simple programming. While helping Mr. Daiqiang to deal with the related documents, I have a certain understanding of the whole workshop related personnel, and the use of Excel has been further improved. The results of this learning phase can not be separated from the guidance of the 2 masters.

With the deepening of the study, I also exposed some problems, many issues are not thorough enough to see, thanks to the masters of the teachings.

Overall, the purpose of this workshop internship has been achieved, I have a certain understanding of the main equipment of the entire bridge box factory, the master used two CNC lathes and their production of parts has a new understanding.

Second, the internship harvest

1, the structure of the product, the principle of work and the main parameters

The main products of the bridge box factory is a variety of gearboxes, torque converter, wet bridge.

As the name suggests, torque converter is to change the torque, shift is a matter of transmission, the bridge is to transfer power.

The common loader torque converter has two kinds: a single turbine for fixed shaft transmission, a double turbine for planetary rack transmission. The principle is as simple as two close to the opposite side of the standing electric fan, an energized rotation of the wind blowing to the other one, thus driving the other one to turn up. The energized one is equivalent to the pump wheel (pump wheel directly from the engine with), the other is equivalent to the turbine.

The pump wheel rotates and the transmission oil rushes to the turbine at high speed, which drives the turbine to rotate. The turbine rotates to output power to the gearbox.

The working principle of the torque converter is directly connected to the engine torque converter pump wheel rotation, stirring the transmission oil in the torque converter in accordance with a certain rule of thumb, there is a fixed guide wheel in the middle of the torque converter, when the liquid through the guide wheel, after a variety of complex changes, the impact of the output turbine, driven by the turbine rotating, to achieve the role of torque enhancement when the torque enhancement process, the turbo's output speed will be reduced. output speed will be reduced. For the torque converter, the main parameters are gear ratio and torque ratio, for the manufacturer of torque converter, it usually provides thousand revolutions torque to do the matching between engine and torque converter. Wet drive axle means wet brake type drive axle. It is the brake pads installed in the wheel side reducer or main reducer, there is gear oil soaked brakes.

2, the workshop's main equipment models, specifications and uses

There are a lot of main equipment in the workshop, which is mainly divided into lathes, grinders, drilling machines, milling machines, hobbing, gear insertion and so on. At the same time, the workshop also has a lot of handling tools, such as pallet trucks, hand-pulled forklifts, battery forklifts, internal combustion forklifts, etc., these machine tools, handling tools greatly improve the production efficiency of the front-line staff.

The main components of CNC lathe:

① main drive system and spindle parts: the tool or workpiece to produce cutting motion;

② feed system: the workpiece or tool to produce feed movement and positioning;

③ bed, column, slide, table and other basic parts;

④ other auxiliary devices, such as hydraulic, pneumatic, lubrication, cutting fluid and other systems and devices.

④ other auxiliary devices, such as hydraulic, pneumatic, lubrication, cutting fluid and other systems and devices.

Here is a brief introduction to the CAK6763, CNC horizontal lathe, the maximum working diameter of 630mm, the maximum stroke of 1500mm, produced by Dalian Second Machine Tool Works, mainly used for turning some rotary parts, such as the first gear piston, direct gear piston and so on. Forklift, such as pallet handling forklift TE30, self-weight 700Kg, rated load 3000Kg, rated power 12KW, rated voltage 24V, load center distance 600mm, lifting height 200mm, battery weight 180Kg, this forklift is mainly used for handling parts in production to save time. Even if the various process equipment is not in the same place, can also play the effect of assembly line production.

There are also many important equipment in the workshop, such as the CNC double-column coordinate boring machine TK42100/2 for tooling, several planetary rack lines, bridge shell lines, tooth shell lines, etc., which will not be cited here.

3, the name of the main parts, the figure number

Here is a list of some of the parts I interned next to the master during the master's processing, such as ZL50E-3 output shaft gears (Figure No. 50A0011, the original code name Z5E Ⅱ 030000001), CG932H passive gears, ZL30B-Ⅱ first-class turbine hubs (Figure No. Z3B Ⅱ 020XX0001), second gear piston ZL30B-II (diagram number Z3BⅡ030000019) and so on.

4, the main parts machining process

Here on the introduction of CG932H passive gear process:

① material under the material 20CrMnTi (outsourcing)

② forging forging billet (outsourcing)

③ hot normalizing treatment (outsourcing)

④ turning rough turning of the parts to the "Process Attachment 1" (outsourcing)

⑤ Thermal de-stressing annealing, see "heat treatment process card number"

⑥ Turning a, clamping the right end of the outer circle, finish turning the left end of the various parts, holes and chamfering to the "Process Attachment" 2

b, clamping the left end of the outer circle, finish turning the right end of the various parts, chamfering to the "Process Attachment" 2

⑦ Tooth to the left end of the support, pulling the spline to the Figure L5560C0.05

⑧ tooth within the Spline positioning, hobbing to Wk100.020, Fr0.09, Fw0.05, deburring

⑨ hot carburizing quenching treatment, see "heat treatment process card number"

0.30 ⑩ grinding a, the school spline and its left endface runout ≤ 0.05, grinding the inner hole of 60.230.28, roughness is less than 1.6 microns, grinding the left endface to Fig.

b, to the left end face support, grinding spline right end face to Figure The remaining two processes are teeth, on the workpiece grinding teeth to Figure; clamp mounted, to be combined.

My master is mainly responsible for the turning part, first rough turning and then finish turning. CNC lathe HTC4596a fixture using a three-jaw chuck, chuck clamping force for the hydraulic drive, probably between 10 and 15 MPa, to prevent the clamping force is too large leading to deformation of the parts. The detection method is mainly using vernier calipers, micrometers and percentage tables. Mainly detect the part's . Diameter, distance, etc.

Third, work-related improvement suggestions

In the work, because the master operates the machine tool is CNC lathe, so I still found some problems in this area. First of all, programming, every time the master processing a new part, will spend a certain amount of time to program, or modify the program, I would like to say is there is a possibility to let a variety of machine tools to fix the processing of some parts, eliminating the need to program the time, because sometimes a programming can spend almost 1 hour, and errors can also cause some damage. Also if the parts could actually be produced in an assembly line like the bridge shell line over there, the efficiency would certainly be greatly improved. The specific measure is to adjust the position of the machine and rationalize the production process of the machine. In addition, in the process of processing, through exchanges with the master, found that the reason why some products are unqualified, the reason is that the blank is unqualified. Imagine, the blank is unqualified, processing parts will be qualified? But this machining process not only wastes time, but also wastes human and material resources. So I think the company should be good in this regard.

And now the factory in the planning of production drawings, I think it is very good, only the drawings get better, the staff productivity can be improved, to put it plainly, more money per unit of time, staff motivation will improve, the factory's resources can be reasonably utilized, this is a win-win result. And the drawings get better, along with the scrap will certainly be reduced, I hope the company can continue to get down this way, rational planning of various processing parts drawings.

Fourth, the personal growth of the feeling

The work encountered in the problem is still quite a lot, first of all, CNC programming, due to a variety of equipment, some of the meaning of the code is different, so I want to completely understand or difficult.

There is also the problem that the master has too many vacations, resulting in some of my CNC problems are not good to communicate with the master. Internship for more than a month, the master is almost 1 month of vacation, so in this regard I hope the factory can be reasonable planning.

Life is basically not difficult, the company provides housing is not only close to the workplace, but also very cheap, thanks to the factory, thanks to the leadership.

In the blink of an eye, are almost 2 months of work, said to work, in fact, is to learn, I think, very few companies in this area do better than into the work, only the foundation to lay a good foundation in order to have a better ability to work, into the work into the work, to help you succeed, a little bit of truth, thank you to the leadership of the opportunity to provide. During this study period, I learned a lot of things, not only a variety of knowledge, but also the reason to do. I have come to a great improvement in dealing with people, due to often run in the factory, but also fell in love with the masters to deal with, fell in love with asking why, thanks to the masters of selfless help.

Just a month, I feel really more than before, the most important thing is, in this kind of, really learned how to deal with people, learned the survival skills.

Thanks to all the people who have helped me care about me, thanks to the leadership.

I. Work completion:

According to the plan at the beginning of the month, the work completed this month is as follows:

1. The plant and the peripheral belt cleaner was transformed (28 channels); the installation of additional anti-runaway vertical rollers 32, installed after the effect is good. At the same time, all the rollers were inspected and maintained; 2. All the chutes were properly remodeled, with 16 inspection ports, 8 inspection platforms and 10 climbing ladders. At the same time on the 201 # machine tail. 215 #. 216 # machine tail incoming chute carried out a major transformation, to solve the chute fluffy blocking phenomenon;

3. The main plant on all levels of the ground waterproofing. Preliminary treatment of leakage prevention (around the equipment and the ground and the equipment itself to run cold);

4. waterproofing of the pumps of the triangle belt guard (mesh);

5. plant air ducts and flushing water pipe initial addition is completed, the product of the belt of the flushing water pipe is also added to complete;

6. all the equipment carried out a period of maintenance: sieve machine exciter according to the requirements of the oil change; Reducer oil change; homemade reducer breathing cap.

7. Due to material problems, the belt machine coupler belonging to. Coupling. Electromagnetic holding brake cover was not completed as planned;

8. In response to the problem of coal accumulation in the raw coal belt distributor, the distributor chute began to be modified; 9. 406 # pump overhaul after the accident, while the 407 maintenance overhaul and maintenance;

II. The consumable materials for all the renovation and overhaul are as follows;

1. Pipe: 30 meters of DN100 pipe; 18 meters of DN50 pipe; 260 meters of DN40 pipe; 120 meters of DN pipe; 49 meters of DN20 pipe.

2. Sections: 7# angle steel 32 meters; 4# angle steel 128 meters; 3# angle steel 73 meters; 8# channel steel 83 meters; 5# flat steel 35 meters; 4# flat steel 110 meters; 3# flat steel 96 meters.

3. Plates: 1.5mm steel plate 4 square meters; 3mm steel plate 23 square meters; 6mm steel plate 19 square meters; 8mm steel plate 18 square meters; 12mm steel plate 16 square meters; 3mm pattern plate 26 square meters.

III. Employee training:

For new employees, workers work skills are poor, safety awareness is shallow and other phenomena, the mechanic in the company arranged before and after the safety and technical training, the team developed a series of internal training and learning programs: the use of pre-shift meeting of the chapter of the workers for the introduction of vocational skills learning and safety training; in-depth work on-site guidance to the workers on-site work to strengthen the work skills of workers, while emphasizing that each of the individual pattern plate 26 square meters, the work of the workers. Strengthening the work skills of employees, while emphasizing the safety precautions of each working environment; for the 406 # pump burning bearing equipment accidents, all the mechanics did targeted training and learning, so that employees have a further understanding of the key parts of the inspection. The plan is to adhere to the daily pre-shift training and learning, as soon as possible to enable employees to master more vocational skills, and make the staff's work safety awareness to a certain height.

Four. Next month's work plan:

After the material is ready, for all the equipment of the protective facilities for the installation and renovation; continue to strengthen the inspection and maintenance of the equipment; efforts to strive for time, continue to strengthen the staff vocational training and safety training.