CN102072713B - Glass warpage detection method - Google Patents

Abstract

The invention discloses a glass warpage detection method, which comprises the following steps of: 1) measuring vertical projection positions of points to be measured of a glass product in the horizontal plane; 2) measuring relative heights of the points to be measured, wherein a height measuring device comprises a soft catheter for injecting liquid, a communicating vessel and a metering tube, the soft catheter and the metering tube are communicated with the atmosphere through openings, during measurement, the metering tube is vertically fixed at a fixed height, the opening end of the soft catheter is dragged to a point to be measured, the liquid level of the opening end of the soft catheter is made to be as high as the point to be measured, and the reading on the metering tube is read, and the process is repeated until relative heights of all points to be measured relative to the fixed height of the metering tube are measured; and 3) inputting the acquired data into three-dimensional cartographic software to simulate a three-dimensional distribution condition of the points to be measured so as to acquire the warpage of the glass product. In the technical scheme, the data acquiring process is improved, so the data is more accurate; and a method for three-dimensionally simulating a diagram through computer-aided design (CAD) is adopted, so that the warpage of each point of the product relative to a certain plane can be accurately measured.

Description

A kind of glass warpage detection method

Technical field

The invention belongs to glass processing and manufacturing field, be specifically related to a kind of detection method of glass warpage, particularly for heat-bending glass, curved tempered glass, the crooked radian anastomose property of its each position is detected and the method for examining.

Background technology

Angularity refers to the warpage deformation quantity that goods produce with respect to the design size shape, and in glass deep processing industry, a lot of occasions need to detect the angularity of glass, such as heat-bending glass, curved tempered glass.In the prior art, detection method to glass warpage has following two kinds: a kind of is to adopt glass is placed on the mould, measures respectively the height on each point and ground, then with all numerical value input computers, chart to simulate space pattern by CAD 3D, then determine each point warpage situation; The general employing is divided into a plane with three in four summits, considers a remaining summit and the distance on this plane, weighs glass warping phenomenon and it erecting stage that whether can coincide, and meets designing requirement.The shortcoming of this way is: it requires the ground must be fully smooth, not so has larger error, might cause error simultaneously between each summit and ground, and the overlap action of a plurality of errors easily makes measured deviation enlarge.Another kind method is: adopt the way of fixed point backguy, namely line in twos on the diagonal line of goods is weighed warpage by measuring two distances between the line, and the shortcoming of this way is: line is thin and soft cotton thread or plastic cord often.Measure both apart from the time, be difficult to accurately.And in the many people's operations of 4 fetch bit meetings of goods, error also can increase.

Summary of the invention

In order to solve above-mentioned technical matters, the purpose of this invention is to provide that a kind of error is less, more convenient and quicker, consumption people's glass warpage detection method still less.

To achieve the above object, the present invention has adopted following technical scheme:

A kind of glass warpage detection method comprises the steps:

1) the vertical projection position of at least 4 tested points in surface level of measurement glassware;

2) measure the relative height of each tested point; The device of measuring height comprises flexible conduit, linker and the gauge line that is communicated with successively, perfusion fluid in flexible conduit, linker and the gauge line, and flexible conduit and gauge line are all by the open communication atmospheric pressure; During measurement, gauge line vertically is fixed in a level altitude, then the flexible conduit openend is drawn to tested point, regulate height, so that the liquid level of flexible conduit openend is identical with the tested point height and position, read the reading on the gauge line; So repeat, measure all tested points with respect to the relative height reading of gauge line level altitude;

The vertical projection position of above-mentioned each tested point in surface level that 3) will obtain and the relative height reading of each tested point are inputted the three-dimensional distribution situation that three-dimensional graphics software simulates each tested point, and then obtain the warpage deformation degree of glassware.

Described step 3) weighs the warpage deformation degree of glassware in by the distance of considering tested point and specific plane.

Described tested point is four summits of glassware.

The liquid of perfusion is water in the described linker.

The present invention on the prior art basis, improves the peek process owing to having adopted above technical scheme, makes it more accurate, and then adopts the way of CAD 3D simulation drawing, can accurately measure the relatively angularity on certain plane of goods every bit.

Description of drawings

Fig. 1 is the structural representation of height measuring device of the present invention;

Embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.

Embodiment 1:

A kind of glass warpage detection method comprises the steps:

1) the vertical projection position of at least 4 tested points in surface level of measurement glassware;

2) measure the relative height of each tested point; The device of measuring height comprises flexible conduit, linker and the gauge line that is communicated with successively, perfusion fluid in flexible conduit, linker and the gauge line, and flexible conduit and gauge line are all by the open communication atmospheric pressure; During measurement, gauge line vertically is fixed in a level altitude, then the flexible conduit openend is drawn to tested point, regulate height, so that the liquid level of flexible conduit openend is identical with the tested point height and position, read the reading on the gauge line; So repeat, measure all tested points with respect to the relative height reading of gauge line level altitude;

The vertical projection position of above-mentioned each tested point in surface level that 3) will obtain and the relative height reading of each tested point are inputted the three-dimensional distribution situation that three-dimensional graphics software simulates each tested point, and then obtain the warpage deformation degree of glassware.

In the present embodiment, each measurement point is four summits (summits at four angles) of glassware.

Above-mentioned steps 1) in, the projected position of each tested point in surface level can adopt approximate way to process, because, bend glass generally is to add hot bending by sheet glass to soften, in die for molding, make through annealing again, so, specific mould can guarantee the basic crooked size of bend glass, and angularity reflection is warpage deviation between goods and the design size shape, the numerical range of angularity is far smaller than the range of size of bend glass, and four summits of general design conditions lower surface camber glass are in the sustained height plane, therefore, the distance in the reality between each summit of glassware can be approximately their projector distances in surface level, just can determine thus the projected position relation between them.(four summits for design are in situation in the clinoplane, can be scaled to projected position relation in the surface level through the pitch angle of design by measuring each vertex distance again.)

Above-mentioned steps 2) in, adopt law of connected vessels to measure the relative height on four summits, as shown in Figure 1, adopt an end of plastic catheter to be fixed on formation gauge line 2 on the vertical scaleplate 1, and be provided with corresponding scale at scaleplate 1 and be used for reading, plastic catheter is curved in gauge line 2 lower ends to be gone out U-shaped and consists of linker 3, plastic catheter consists of at the other end of linker 3 can crooked mobile flexible conduit 4, the liquid of perfusion in the linker, the other end of flexible conduit 4 is openend 5, and the fluid level in the fluid level of the openend 5 of flexible conduit 4 and the gauge line 2 remains and flushes.The liquid viscosity of perfusion is often less, such as water etc., can volatilize fast with environment, also can not glue with conduit to stick, and section is high-visible; Wherein, the plastic catheter transparent wear is difficult for being scratched loss, can not cause sticking glutinous with liquid.Scale precision on the scaleplate is according to producing and the required customization of client.When measuring, scaleplate vertically is fixed in a bit, then the other end of conduit is drawn to the summit of goods, regulate height, so that liquid level and goods summit co-located, and read reading on the scaleplate.

Above-mentioned steps 3) in, employing is divided into a plane with three in four summits, considers a remaining summit and the distance on this plane, weighs glass warpage.Namely in the CAD graphics software, in two dimensional surface, draw first the position coordinates on four summits, again according to the stretch height coordinate on four summits of their relative height reading, thereby obtain their 3 D stereo distributing position, determine a plane with three points wherein, arrive the distance on this plane with another point as the physical quantity of weighing goods warpage deformation degree.(can certainly adopt 2 lines in existing diagonal angle, with the physical quantity of the distance between two straight lines as measurement goods warpage deformation degree.)

The angularity of measuring has in this way avoided the ground out-of-flatness to cause error, adopt law of connected vessels simultaneously after, precision improves greatly, can reach in the accurate 0.5mm.Because adopt same reference point, that has avoided causing when difference is measured it with the ground relative height may be because of the incomplete vertical error that causes of slotted line.There is not the drawback when adopting the backguy method to measure yet.And the saving manpower, convenient and easy.

Claims (3)

1. a glass warpage detection method comprises the steps:

1) the vertical projection position of at least 4 tested points in surface level of measurement glassware;

2) measure the relative height of each tested point; The device of measuring height comprises flexible conduit, linker and the gauge line that is communicated with successively, perfusion fluid in flexible conduit, linker and the gauge line, and flexible conduit and gauge line are all by the open communication atmospheric pressure; During measurement, gauge line vertically is fixed in a level altitude, then the flexible conduit openend is drawn to tested point, regulate height, so that the liquid level of flexible conduit openend is identical with the tested point height and position, read the reading on the gauge line; So repeat, measure all tested points with respect to the relative height reading of gauge line level altitude;

The vertical projection position of above-mentioned each tested point in surface level that 3) will obtain and the relative height reading of each tested point are inputted the three-dimensional distribution situation that three-dimensional graphics software simulates each tested point, and then obtain the warpage deformation degree of glassware.

2. a kind of glass warpage detection method according to claim 1 is characterized in that, described tested point is four summits of glassware.

3. a kind of glass warpage detection method according to claim 1 is characterized in that, the liquid of perfusion is water in the described linker.