CN104999275A - Machining system and machining method of rolled bush - Google Patents

Abstract

The invention discloses a machining system of a rolled bush. The machining system comprises a punching machine, a shaping machine, a milling machine and a conveying belt connected among the punching machine, the shaping machine and the milling machine. A progressive die is arranged in the punching machine in a matched manner, and an assembling die is arranged in the shaping machine in a matched manner. According to the machining system and the machining method of the rolled bush, automatic machining equipment is adopted, and high-precision machining of the rolled bush can be achieved in cooperation with three machining procedures.

Description

A kind of system of processing and processing method thereof rolling lining

Technical field

The present invention relates to a kind of processing method, particularly relate to a kind of system of processing and the processing method thereof that roll lining.

Background technology

Auto parts production assembling in, inserts is an indispensable part, in automotive power transmission system, exist a kind of carbon steel support inserts, also referred to as rolling lining, its injection moulding in the housing, for the riveted joint in later stage.

The existing lining that rolls is all that cylindric C makes structure, curling in cylindrical body by sheet material, two ends contact with each other but there is certain gap, the existing processing method rolling lining is exactly that curling sheet material is carried out punching press by stamping machine, form the thick finished product of an approximate circle, then a cylindrical bar is inserted in thick finished product inside, processing staff is by beaing bushing outer makes its circularity by hand, inner diameter values is close to processing request, machining lining two ends finally by lathe makes lining height be similar to value processing, this method or traditional craft processing, first do not talk its working (machining) efficiency very low, the lining precision of this processing mode processing is very low, its internal-and external diameter value, circularity, roughness, tangent plane perpendicularity and tangent plane levelness are all difficult to accurate control, the client that requirement on machining accuracy is not high can only be applicable to, but for the client that requirement on machining accuracy is high, this method can not meet completely.

For the defect of processing manual on domestic market, Germany BIHLER and Japanese TPS company develop a kind of process equipment and processing method, size cutting is first carried out to sheet material and forms rectangle workpiece to be added, then by special process equipment, workpiece to be added for rectangle is pressed to middle cylindrical bar from different directions, final formation cylindrical bush, greatly process velocity can be improved by this process equipment, can be control effectively by machine to machining accuracy simultaneously, but this equipment is that this two company is exclusive, the words cost of buying is very high, and although its machining accuracy is improved, but still the processing request of high accuracy lining on the market cannot be met.

Summary of the invention

The object of the invention is to the defect overcoming prior art, a kind of system of processing and the processing method thereof that roll lining are provided, can be prepared easily by this system of processing and high-precisionly roll lining, and working (machining) efficiency is also greatly enhanced.

For achieving the above object, the present invention proposes following technical scheme:

Roll a system of processing for lining, comprise stamping machine, trimmer, milling drum and be connected to described stamping machine, conveyer belt between trimmer and milling drum, coordinate in described stamping machine and progressive die is installed, coordinate in described trimmer and assembling die is installed.

Described assembling die is the die of annular and shaft-like punch, and punch interts in described die.Roll a processing method for lining, specifically comprise the steps:

A. material selection: select thickness to be the roll sheet material of 0.3 ~ 3mm, its material is carbon steel, stainless steel or aluminium;

B. punching press: the roll sheet material of step a is sent in fully automatic high-speed stamping machine, progressive die is coordinated to carry out roughing, form the thick finished product of approximate circle, make that the internal-and external diameter tolerance of thick finished product reaches ± 0.1mm, roundness tolerance reaches ± 0.1, height tolerance reaches ± 0.05mm, parallelism tolerance reaches ± 0.1, roughness tolerance Ra reaches 8;

C. shaping: thick finished product complete for step b punching press is sent in full-automatic shaper and carries out Shape correction, semi-finished product are put into the annular die of assembling die, inserted by the shaft-like punch of assembling die rolls in the circle of lining simultaneously, by promote roll lining make its formed between punch and die inside and outside repeatedly extrude, produce plastic deformation, thus squeezing shaping forms semi-finished product, and the half-finished internal-and external diameter tolerance formed is reached for ± 0.05mm, roundness tolerance reaches ± 0.02mm;

D. grinding: semi-finished product complete for step c shaping are sent in milling drum, by grinder wheel, grinding process is carried out to semi-finished product two ends and form finished product, by controlling the depth of parallelism between two grinder wheels and spacing, thus make that the height tolerance of finished product reaches ± 0.02mm, parallelism tolerance reaches ± 0.05, squareness tolerance reaches ± and 0.05, roughness tolerance Ra reaches 1.6.

Compared with prior art, a kind of system of processing and processing method thereof rolling lining that the present invention discloses, trimming is adopted to substitute finishing circle in original technique, cylindrical grinding, three operations of boring inner circle, and the circularity of lining effectively can be controlled by the use of assembling die, inner diameter values and external diameter value, original lathe operation is substituted by grinding process, effectively can control the height value of lining, the depth of parallelism, perpendicularity and surface roughness, simultaneously in order to realize automation processing, adopt in this system of processing outside automation equipment, conveyer belt is adopted to carry out automation feeding between the individual devices, whole method is simple to operation, can effective controlled working precision, greatly improve processing efficiency simultaneously.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of system of processing of the present invention;

Fig. 2 is the machining sketch chart of assembling die in shaping process of the present invention;

Fig. 3 is grinding process schematic diagram in grinding process of the present invention.

Detailed description of the invention

Clear, complete description is carried out below by the technical scheme of the embodiment of the present invention.

As shown in Figure 1, disclosed a kind of system of processing rolling lining, comprise stamping machine 1, trimmer 2, milling drum 3 and be connected to described stamping machine 1, conveyer belt 4 between trimmer 2 and milling drum 3, coordinate in described stamping machine 1 and progressive die is installed, coordinate in described trimmer 2 and assembling die is installed.

Wherein, described assembling die is the die of annular and shaft-like punch, and punch interts in described die.

Roll a processing method for lining, specifically comprise the steps:

A. material selection: select thickness to be the roll sheet material of 0.3 ~ 3mm, its material is carbon steel, stainless steel or aluminium;

B. punching press: the roll sheet material of step a is sent in fully automatic high-speed stamping machine, progressive die is coordinated to carry out roughing, form the thick finished product of approximate circle, make that the internal-and external diameter tolerance of thick finished product reaches ± 0.1mm, roundness tolerance reaches ± 0.1, height tolerance reaches ± 0.05mm, parallelism tolerance reaches ± 0.1, roughness tolerance Ra reaches 8;

C. shaping: thick finished product complete for step b punching press is sent in full-automatic shaper and carries out Shape correction, semi-finished product are put into the annular die of assembling die, inserted by the shaft-like punch of assembling die rolls in the circle of lining simultaneously, by promote roll lining make its formed between punch and die inside and outside repeatedly extrude, produce plastic deformation, thus squeezing shaping forms semi-finished product (as shown in Figure 2), and the half-finished internal-and external diameter tolerance formed is reached for ± 0.05mm, roundness tolerance reaches ± 0.02mm;

D. grinding: semi-finished product complete for step c shaping are sent in milling drum, by grinder wheel, grinding process is carried out to semi-finished product two ends and form finished product (as shown in Figure 3), by controlling the depth of parallelism between two grinder wheels and spacing, thus make that the height tolerance of finished product reaches ± 0.02mm, parallelism tolerance reaches ± 0.05, squareness tolerance reaches ± and 0.05, roughness tolerance Ra reaches 1.6.

Following table is adopt processing technology of the present invention and existing processing technology to carry out each parameter tolerance value rolling lining of processing, specific as follows:

Each parameter tolerance	The present embodiment	Prior art
			Roll gap size	0.01-0.04mm	More than 0.1mm
Interior through tolerance	0.05mm	0.10-0.20mm
			Outer diameter tolerance	0.05mm	0.10-0.30mm
Height tolerance	0.02mm	0.10-0.20mm
			Roundness tolerance	0.02mm	0.20mm
Faces parallel	0.05	0.20
			End face and cylindrical perpendicularity	0.05	0.20

Technology contents of the present invention and technical characteristic have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from spirit of the present invention based on teaching of the present invention and announcement; therefore; scope should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present invention and modification should be comprised, and contained by present patent application claim.

Claims (3)

1. one kind rolls the system of processing of lining, it is characterized in that: comprise stamping machine, trimmer, milling drum and be connected to described stamping machine, conveyer belt between trimmer and milling drum, coordinate in described stamping machine and progressive die is installed, coordinate in described trimmer and assembling die is installed.

2. a kind of system of processing rolling lining according to claim 1, is characterized in that: described assembling die is the die of annular and shaft-like punch, and punch interts in described die.

3. roll a processing method for lining, it is characterized in that: specifically comprise the steps:

A. material selection: select thickness to be the roll sheet material of 0.3 ~ 3mm, its material is carbon steel, stainless steel or aluminium;

B. punching press: the roll sheet material of step a is sent in fully automatic high-speed stamping machine, progressive die is coordinated to carry out roughing, form the thick finished product of approximate circle, make that the internal-and external diameter tolerance of thick finished product reaches ± 0.1mm, roundness tolerance reaches ± 0.1, height tolerance reaches ± 0.05mm, parallelism tolerance reaches ± 0.1, roughness tolerance Ra reaches 8;

C. shaping: thick finished product complete for step b punching press is sent in full-automatic shaper and carries out Shape correction, semi-finished product are put into the annular die of assembling die, inserted by the shaft-like punch of assembling die rolls in the circle of lining simultaneously, by promote roll lining make its formed between punch and die inside and outside repeatedly extrude, produce plastic deformation, thus squeezing shaping forms semi-finished product, and the half-finished internal-and external diameter tolerance formed is reached for ± 0.05mm, roundness tolerance reaches ± 0.02mm;

D. grinding: semi-finished product complete for step c shaping are sent in milling drum, by grinder wheel, grinding process is carried out to semi-finished product two ends and form finished product, by controlling the depth of parallelism between two grinder wheels and spacing, thus make that the height tolerance of finished product reaches ± 0.02mm, parallelism tolerance reaches ± 0.05, squareness tolerance reaches ± and 0.05, roughness tolerance Ra reaches 1.6.