CN106424352B - A kind of method of stamping die and surface profile measurement - Google Patents
A kind of method of stamping die and surface profile measurement Download PDFInfo
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- CN106424352B CN106424352B CN201610801740.4A CN201610801740A CN106424352B CN 106424352 B CN106424352 B CN 106424352B CN 201610801740 A CN201610801740 A CN 201610801740A CN 106424352 B CN106424352 B CN 106424352B
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- plate
- stamping
- punch
- punching press
- pin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
Abstract
The invention discloses a kind of stamping die and the method for surface profile measurement, which includes：Cavity plate, the blank holder being set on cavity plate and the punch-pin matched with cavity plate；The punching press end face of punch-pin is plane, is provided with a cavity structure on punching press end face.Detection plate is treated by stamping die and carries out stamping process, obtains stamping parts corresponding with the structure snd size of punching press end face；Part in stamping parts when punching press in cavity structure is sampled, detection sample is obtained；Surface profile measurement is carried out to detection sample, can be realized in this way and deformed surface specification is measured, obtain accurate detection as a result, ensure that the validity and high efficiency of product development and research.
Description
Technical field
The present invention relates to components detection field more particularly to a kind of methods of stamping die and surface profile measurement.
Background technique
The painting quality and vividness of product appearance directly affect the surface quality of the outer covering piece of product, generally,
The main materials of outer covering piece have iron and steel sheet and plate, aluminum alloy plate materials, magnesium alloy plate, plastic plate etc., influence outer covering piece table
The principal element of face quality is the surface topography of the part material.
The main indicator own centre line average roughness Ra value of surface topography, maximum peak valley are away from Rmax value, peak value Pc value
With percent ripple Wca value.Since the measurement of surface topography index is more demanding to the flatness and straightness of material surface,
Traditional measurement is all to measure by undeformed preceding raw sheet material, but the measurement result cannot reflect covering after final deformation
Surface topography, to product quality exploitation and assessment impact.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of stamping die and the method for surface profile measurement, solutions
Surface profile measurement result inaccuracy in the prior art of having determined and the problem of cause adverse effect to product development and assessment.
According to one aspect of the present invention, a kind of stamping die is provided, including：Cavity plate, the flanging being set on cavity plate
Circle and the punch-pin matched with cavity plate；Wherein, the punching press end face of punch-pin is plane, is provided with a cavity knot on punching press end face
Structure.
Wherein, the section of punch-pin is positive polygon or round.
Wherein, punch-pin is solid construction relative to one end of punching press end face.
According to another aspect of the invention, it additionally provides a kind of using stamping die as described above progress surface topography
The method of detection, this method include：
Detection plate is treated by stamping die and carries out stamping process, is obtained corresponding with the structure snd size of punching press end face
Stamping parts；
Part in stamping parts when punching press in cavity structure is sampled, detection sample is obtained；
Surface profile measurement is carried out to detection sample.
Wherein, treating the step of detection plate carries out stamping process by stamping die includes：
Plate to be detected is fixed on cavity plate by the blank holder of stamping die；
Control punch-pin and cavity plate treat detection plate and carry out stamping process.
Wherein, include to the step of detection sample progress surface profile measurement：Surface roughness, peak are carried out to detection sample
At least one in value density, surface waviness is detected.
Wherein, it controls punch-pin and cavity plate is treated before detecting the step of plate carries out stamping process, further include：
Lubricant is uniformly coated in the outer surface of plate to be detected.
Wherein, before the step of carrying out surface profile measurement to detection sample, further include：To detection sample carry out cleaning and
It is dried.
The beneficial effect of the embodiment of the present invention is：
Detection plate is treated by stamping die and carries out stamping process, is obtained corresponding with the structure snd size of punching press end face
Stamping parts；Part in stamping parts when punching press in cavity structure is sampled, detection sample is obtained；To detection sample
Surface profile measurement is carried out, can be realized in this way and deformed surface specification is measured, obtains accurate detection as a result, protecting
The validity and high efficiency of product development and research are demonstrate,proved.
Detailed description of the invention
Fig. 1 shows the structural schematic diagrams of stamping die of the invention；
Fig. 2 indicates the structural schematic diagram of the cylindrical male of stamping die of the invention；
Fig. 3 indicates the structural schematic diagram of the square column punch-pin of stamping die of the invention；
Fig. 4 indicates the flow diagram of method for detecting surface appearance of the invention.
Wherein in figure：1, cavity plate, 2, blank holder, 3, punch-pin；
31, punching press end face, 32, cavity structure.
Specific embodiment
The exemplary embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing the present invention in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here
It is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention
It is fully disclosed to those skilled in the art.
Embodiment one
As shown in Figure 1 to Figure 3, the embodiment provides a kind of stamping dies, including：Cavity plate 1,2 and of blank holder
Punch-pin 3.
Wherein, cavity plate 1 is also known as type chamber, is the major part for forming plastic outer surface, and cavity plate 1 can be installed on cover half,
Also it can be installed on dynamic model.
Blank holder 2 is arranged on cavity plate 1, the circle shape pressing device that marginal portion is arranged between cavity plate 1 and punch-pin 3.?
In punching course, the main function of blank holder 2 is the problem of preventing workpiece peristoma part from wrinkling because of unstability.
Punch-pin 3 is called red needle, formed punch, formpiston, upper mold etc., is mainly used for the part of moulded products inner surface.Wherein, punch-pin
3 shape and the shape of cavity plate 1 match.It can only be in flatness and the higher condition of straightness in view of each index value of surface topography
Lower to be just capable of measuring, to there is relatively flat measuring surface after guarantee punching press, the punching press end face 31 at 3 top of punch-pin is designed as one and puts down
Face；In order to further avoid the influence to material surface pattern such as friction that material is contacted with mold, the punching press end face of the punch-pin 3
A cavity structure 32 is provided on 31.
Optionally, punch-pin 3 can be designed as different shapes as needed, such as：Punch-pin 3 may be designed as cylinder, rectangle,
The cylindrical bodies structure such as regular quadrangle, regular hexagon, the i.e. section of punch-pin 3 are positive polygon or round.
Further, in order to improve the intensity and stamping press of punch-pin 3, in the other end of the punch-pin 3 relative to punching press end face 31
For solid construction.
Detection plate can be treated using the stamping die and carries out stamping process, can be imitated plate in practical application and be carried out punching press
Plate form afterwards can obtain a smooth face to be detected after the stamping die carries out stamping process, to be detected to this
Face, which is sampled detection, can be obtained the surface topography parameters of stamping process plate.
Embodiment two
Above embodiments one describe stamping die of the invention, below the present embodiment will be in conjunction with attached drawing and concrete application field
Scape is described further explanation to the method for the surface profile measurement carried out using the stamping die.
Specifically, as shown in figure 4, the method for the surface profile measurement includes the following steps：
Step 401：Detection plate is treated by stamping die and carries out stamping process, obtains the structure and ruler with punching press end face
Very little corresponding stamping parts.
Wherein, which includes：Cavity plate, the blank holder being set on cavity plate and the punch-pin matched with cavity plate；
Wherein, the punching press end face of punch-pin is plane, is provided with a cavity structure on punching press end face.In the manufacturing of automobile, have
The metal parts of 60%-70% need to be shaped through plastic processing, and punch process is to complete a kind of important hand of metal forming
Section, it is one of most basic, most traditional, most important method for metal working.Such as the various coverings on vehicle body, interior support
Part, structural reinforcement member, there are also a large amount of auto parts and components, such as the exhaust elbow and silencer of engine, hollow camshaft, oily bottom
Shell, engine support, framework junction part, transverse and longitudinal beam etc. are all positive accurate, multi-functional, the efficient sections of stamped forming technique
The production mode reform development of energy, safely cleaning, the manufacturing technology level and quality of stamped workpieces, largely to automobile manufacture
Quality and cost have direct influence.
In order to simulate the surface topography of the components after the punch forming in practical manufacturing process, the present invention uses above-mentioned punching
Compression mould treats detection plate and carries out stamping process.Wherein, punching process character refers to stamping parts to the adaptability of craftwork, i.e. institute
Whether the stamping parts of design meets the technique requirement of punch process in size, dimensional accuracy and benchmark, planform etc..For
Guarantee punching process character, plate to be detected can be cut from measured thin plate under, meet needed for above-mentioned stamping die
Sheet style, thickness are subject to gauge of sheet.
Further, the step of detection plate carries out stamping process is treated by stamping die to specifically include：Pass through punching press
Plate to be detected is fixed on cavity plate by the blank holder of mold；Control punch-pin and cavity plate treat detection plate and carry out stamping process,
To obtain stamping parts.In order to protect the surface of punching course plate to be detected, before the punching in the outer surface of plate to be detected
Uniformly coating lubricant, to avoid the damage for treating detection plate surface in punching course.In addition, in order to anti-in punching course
Only plate corrugation to be detected will have the material of the punching press end face at the top of enough pressure-pad-force guarantee punch-pin wrinkle resistant, make punch-pin
The material of punching press end face keeps good flatness.
Step 402：Part in stamping parts when punching press in cavity structure is sampled, detection sample is obtained.
Since the stamping parts obtained after the stamping die carries out stamping process has a smooth end face, the flat end face
At the cavity structure position of punch-pin corresponding to stamping die, being sampled to the flat end face can be obtained detection sample.Tool
Body can cut down the sample at the top of punch-pin and at punch-pin cavity structure position, and cutting when keeps the smooth of sample
Degree.
In order to guarantee to detect the whole clean of sample, the detection sample cut down is carried out at cleaning and drying
Reason provides preferable detection sample for subsequent detection.
Step 403：Surface profile measurement is carried out to detection sample.
Wherein, surface topography includes：Surface roughness, peak density (maximum peak valley is away from value Rmax and peak value Pc etc.),
The multiple parameters such as surface waviness.Carrying out surface profile measurement to detection sample is specially：Rough surface is carried out to detection sample
Degree, peak density, in surface waviness at least one of detected.Below by respectively with regard to the detection process of the above parameter do into
One step introduction explanation.
Piece surface is after processing, it appears that and it is very smooth, it is magnified uneven.Surface roughness, which refers to, to be added
Microcosmos geometric shape feature composed by the smaller spacing having on piece surface after work and small peak valley, usually by being adopted
What the processing method and/or other factors taken was formed.The function of piece surface is different, and required surface roughness parameter value is not yet
Equally.Mark surface roughness code name (symbol) is wanted on part drawing, to the surface characteristic for illustrating to reach after the surface finish.
Wherein, the parameter of surface roughness has 3 kinds：Profile arithmetic average error Ra, ten point height Rz of nao-and micro relief and profile are maximum
Height Ry.Wherein, profile arithmetic average error be in sample length, point on the contour line of measurement direction (Y-direction) with
Apart from the arithmetic mean of instantaneous value of absolute value between reference line.Ten point height of nao-and micro relief refers to 5 most bull wheels in sample length
The sum of the average value of the average value of wide peak height and 5 largest contours paddy depths.Maximum height of the profile refers in sample length, profile
The distance between top top line and minimum valley line.Ra is mainly selected in common mechanical process industry.Ra value presses following equation
It calculates：
Or it is approximately
Wherein in formula, Y is the distance between point on contour line to reference line (middle line)；L is sample length.
Further, the detection of surface roughness, we are most common following several method：
First is that measured surface and roughness comparison specimen are specifically close together by microscope comparison method, with than
The surface that both more micro- sem observations are amplified, using the roughness on sample block working face as standard, measured surface is compared in observation is
The no surface roughness for reaching corresponding sample block；Therefore, it is determined that whether measured surface roughness meets regulation, it is worth pointing out that
Roughness parameter value can not be measured using the method.
Second is that light-section microscope mensuration, specifically, light-section microscope (double tube microscope) are to cut principle measurement using light
The method of surface roughness, the surface roughness profile image from eyepiece measure Rz value and Ry value with micrometer device.It can also lead to
It crosses measurement and depicts contour images, then calculate Ra value.
Third is that electric profile apparatus comparison method, specifically, electric profile apparatus belongs to contact pin type instrument, instrument contact pilotage point when measurement
It holds on measured surface perpendicular on the section of processing grain direction, moves horizontally measurement, immediately arrive at one from indicating meter
A measurement stroke Ra value.Or the recording device with instrument, describe the enlarged drawing of roughness profile curve, then calculate Ra or Rz
Value.
Fourth is that interference microscope mensuration, specifically, relating to microscope is using principle of optical interference, using optical wavelength as base
Standard measures surface roughness.Measured surface has certain roughness to take on scraggly peak valley shape interference fringe,
By eyepiece observation, the number of these interference fringes and the bending degree of peak valley are measured using micrometer device, can calculate table
The Ra value of surface roughness.
Wherein, maximum peak valley can be detected during roughness measurement away from Rmax value and peak value Pc value and is calculated.
The geometry overall error of piece surface is made of surface roughness, percent ripple and form error three parts.Plane
Surface characteristics generally determined by three surface roughness, surface waviness and morphology error parameters, wherein surface
Roughness category microscopic quantity, usual wavelength are less than 1mm, and corresponding measuring instrument has contourgraph etc.；Morphology error belongs to macro
Sight amount, for wavelength in 10mm or more, corresponding measuring instrument has electronic ga(u)ge and other bulky measurement equipments；Surface waviness
Wavelength is in 1~10mm between microscopic quantity and maroscopic quantity.When measuring sectional profile curve lin, certain filtering mode is taken,
To limit and weaken the roughness and form error ingredient of finished surface, write music so that experiment curv obtained is known as ripple
Line.The numerical value of percent ripple refers to be obtained on each section perpendicular to datum level, if not providing certain measurement direction, wave
The numerical value of line degree refer to perpendicular to datum level and along processing grain direction section on obtain (under normal circumstances, by shaking
The raw percent ripple of movable property, maximum amplitude value are occurred in processing grain direction).
Before measurement, first device for measuring waveness of plane surface is placed on standard flat, by digital display dial gauge in the dress
The measuring basis line position set is reset.The device is placed on tested surface after clearing, the selection of measurement direction should make digital display thousand
Divide the measuring head moving direction of table vertical with the processing direction of tested surface, by the overlapping positions of vernier zero and zero point of scale
The starting point mobile as measuring head, the I-shaped sliding block of slip band vernier drive measuring head mobile, in mobile process type
In, respectively record digital display dial gauge knee value, that is, Wave crest and wave trough relative to standard half-round bar measuring basis line variable quantity h1,
H2, h3 ..., and be recorded in simultaneously by scale and vernier the i.e. ripple of amount of movement of measuring head at each inflection point wavelength value L1,
L2,L3….The above process is the collection process of measurement data, and according to the difference of data processing method, percent ripple parameter has several
The different expression way of kind, such as the average height WC of percent ripple maximum height of the profile W1, percent ripple profile injustice, can foundation
The different detection demand of client does corresponding data processing.
Detection plate is treated by stamping die and carries out stamping process, is obtained corresponding with the structure snd size of punching press end face
Stamping parts；Part in stamping parts when punching press in cavity structure is sampled, detection sample is obtained；To detection sample
Surface profile measurement is carried out, can be realized in this way and deformed surface specification is measured, obtains accurate detection as a result, protecting
The validity and high efficiency of product development and research are demonstrate,proved.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (5)
1. a kind of method of surface profile measurement is carried out, the stamping die using a stamping die, including：Cavity plate is set to
Blank holder on the cavity plate and the punch-pin matched with the cavity plate；It is characterized in that, the method includes：
Detection plate is treated by the stamping die and carries out stamping process, is obtained corresponding with the structure snd size of punching press end face
Stamping parts；Wherein, the punching press end face of the punch-pin is plane, is provided with a cavity structure on the punching press end face；
Part in the stamping parts when punching press in the cavity structure is sampled, detection sample is obtained；
Surface profile measurement is carried out to the detection sample.
2. the method for surface profile measurement according to claim 1, which is characterized in that by the stamping die to be checked
Drafting board material carry out stamping process the step of include：
Plate to be detected is fixed on the cavity plate by the blank holder of the stamping die；
It controls the punch-pin and the cavity plate and stamping process is carried out to the plate to be detected.
3. the method for surface profile measurement according to claim 1, which is characterized in that carry out surface to the detection sample
The step of Shape measure includes：To at least one in the detection sample progress surface roughness, peak density, surface waviness
Item is detected.
4. the method for surface profile measurement according to claim 1, which is characterized in that control the punch-pin and the cavity plate
Before the step of carrying out stamping process to the plate to be detected, further include：
Lubricant is uniformly coated in the outer surface of the plate to be detected.
5. the method for surface profile measurement according to claim 1, which is characterized in that carry out surface to the detection sample
Before the step of Shape measure, further include：Washing and drying treatment is carried out to the detection sample.
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| CN201610801740.4A CN106424352B (en) | 2016-09-05 | 2016-09-05 | A kind of method of stamping die and surface profile measurement |
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| CN201610801740.4A CN106424352B (en) | 2016-09-05 | 2016-09-05 | A kind of method of stamping die and surface profile measurement |
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| CN106424352B true CN106424352B (en) | 2018-11-27 |
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| CN111102933B (en) * | 2019-12-16 | 2022-04-19 | 首钢集团有限公司 | Method and device for improving coating quality of metal material |
| CN112453160A (en) * | 2020-11-24 | 2021-03-09 | 李方 | Metal plate stamping correction method |
| CN112718921B (en) * | 2020-12-29 | 2021-09-03 | 南通双耀冲压有限公司 | Quality detection method and device for motor rotor stamping die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202861227U (en) * | 2012-11-15 | 2013-04-10 | 齐齐哈尔高等师范专科学校 | Stamping device with inwards concave stamping head |
| CN105363883A (en) * | 2015-12-17 | 2016-03-02 | 苏州恒泰金属制品有限公司 | Blanking die achieving accurate positioning |
| CN205996034U (en) * | 2016-08-30 | 2017-03-08 | 武汉钢铁股份有限公司 | Can achieve the stamping simulation device of uniform prestrain |
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2016
- 2016-09-05 CN CN201610801740.4A patent/CN106424352B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202861227U (en) * | 2012-11-15 | 2013-04-10 | 齐齐哈尔高等师范专科学校 | Stamping device with inwards concave stamping head |
| CN105363883A (en) * | 2015-12-17 | 2016-03-02 | 苏州恒泰金属制品有限公司 | Blanking die achieving accurate positioning |
| CN205996034U (en) * | 2016-08-30 | 2017-03-08 | 武汉钢铁股份有限公司 | Can achieve the stamping simulation device of uniform prestrain |
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