CN111121681A - Auxiliary positioning measurement method for three-dimensional measurement instrument - Google Patents
Auxiliary positioning measurement method for three-dimensional measurement instrument Download PDFInfo
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- CN111121681A CN111121681A CN201811283832.3A CN201811283832A CN111121681A CN 111121681 A CN111121681 A CN 111121681A CN 201811283832 A CN201811283832 A CN 201811283832A CN 111121681 A CN111121681 A CN 111121681A
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- 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
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Abstract
The invention relates to the technical field of measurement, in particular to an auxiliary positioning measurement method of a three-dimensional measuring instrument. The auxiliary positioning measurement method of the three-dimensional measurement instrument comprises the following steps: (1) a limiting block is fixedly arranged on a measuring platform of the three-dimensional measuring instrument, and the limiting block is provided with a fixed embedded angle; (2) placing the auxiliary measuring jig card into the fixed embedded angle; (3) placing a workpiece to be measured on the auxiliary measuring jig; (4) starting a three-dimensional measuring instrument to measure a workpiece to be measured; the auxiliary measuring jig is arranged according to the shape of the workpiece to be measured, so that the workpiece to be measured can be stably placed on the auxiliary measuring jig. Compared with the prior art, the auxiliary measuring jig is placed on the same coordinate every time, and the coordinate does not need to be aligned on the platform again. Therefore, the problem of position deviation caused by repeated coordinate alignment is solved, and manpower and working hours are saved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of measurement, in particular to an auxiliary positioning measurement method of a three-dimensional measuring instrument.
[ background of the invention ]
The three-dimensional measuring instrument is also called a three-coordinate measuring machine, and can represent the measuring capabilities of geometric shape, length, circumference graduation and the like in a hexahedral space range. The three-coordinate measuring instrument is a probe which can move in three directions and can move on three mutually perpendicular guide rails, said probe can utilize contact or non-contact mode to transfer signal, and the displacement measuring system (for example optical rule) with three axes can utilize data processor or computer to calculate the coordinates (X, Y, Z) of every point of workpiece and various function measured values.
In a production line, a lot of workpieces of the same type are measured by a measuring staff to detect defective products with sizes not meeting tolerance requirements. In order to avoid measurement errors as much as possible, each workpiece needs to be located at the same position of the three-dimensional measuring instrument measuring platform when being measured, that is, each workpiece is always located on the same coordinate.
Under the prior art, after a measuring staff measures one workpiece, the coordinates are manually drawn again on the workbench according to the shape and the size of the workpiece, so that the next workpiece can be placed on the workbench according to the defined coordinates. When measuring multiple types of workpieces, the coordinates must be aligned for multiple times aiming at different workpieces, so that a large amount of labor and time are consumed, and the condition that the coordinates cannot be deviated during drawing every time is difficult to ensure.
In view of the above, it is necessary to develop an auxiliary positioning and measuring method for a three-dimensional measuring instrument to help position the coordinates of a workpiece so as to avoid the inconvenience of drawing the coordinates manually for many times.
[ summary of the invention ]
Therefore, an object of the present invention is to provide an auxiliary positioning measurement method for a three-dimensional measuring instrument. The jig can help to position the coordinates of the workpiece so as to save the inconvenience of drawing the coordinates manually for many times.
In order to achieve the above object, the auxiliary positioning measurement method of the three-dimensional measuring instrument of the present invention comprises:
(1) a limiting block is fixedly arranged on a measuring platform of the three-dimensional measuring instrument, and the limiting block is provided with a fixed embedded angle;
(2) placing the auxiliary measuring jig card into the fixed embedded angle;
(3) placing a workpiece to be measured on the auxiliary measuring jig;
(4) starting a three-dimensional measuring instrument to measure the workpiece to be measured;
the auxiliary measuring jig is arranged according to the shape of the workpiece to be measured, so that the workpiece to be measured can be stably placed on the auxiliary measuring jig.
The limiting block is provided with a fixed embedded angle, and the auxiliary measuring jig is clamped in the fixed embedded angle; the auxiliary measuring jig is arranged according to the shape of the workpiece to be measured, so that the workpiece to be measured can be stably placed on the auxiliary measuring jig.
Preferably, the limiting block is fixed on the measuring platform through a locking screw
Preferably, the limiting block is L-shaped.
Preferably, the base of the auxiliary measuring jig is provided with at least one right angle, and the right angle of the base is placed to be close to the right angle of the limiting block when the auxiliary measuring jig is placed.
Preferably, the step (3) further includes that a pressing member for fixing the workpiece to be measured is further disposed on the auxiliary measuring jig.
Preferably, the auxiliary measuring jig may further include a tapered hanging rod, and the workpiece to be measured having the hollow structure may be inserted into the tapered hanging rod.
Preferably, the step (4) further includes that the three-dimensional measuring instrument measures the workpiece to be measured to obtain the shape, the position tolerance and other geometric data of the workpiece to be measured.
Preferably, the auxiliary positioning measurement method of the three-dimensional measuring instrument further includes step (5), that is, after the auxiliary measurement jig is replaced, the workpiece to be measured with different structures can be measured.
Compared with the prior art, the three-dimensional measuring instrument has the advantages that the limiting block is arranged on the measuring platform of the three-dimensional measuring instrument, the base of the auxiliary measuring jig is placed in close contact with the limiting block, and then the three-dimensional measuring instrument measures. Therefore, the auxiliary measuring jig is placed on the same coordinate every time, and the coordinate does not need to be aligned on the platform again. Therefore, the problem of position deviation caused by repeated coordinate alignment is solved, and manpower and working hours are saved.
[ description of the drawings ]
Fig. 1 is a flowchart illustrating an auxiliary positioning measurement method of a three-dimensional measurement instrument according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the following preferred embodiment of the auxiliary positioning measurement method of a three-dimensional measuring instrument according to the present invention is shown, and fig. 1 is a flowchart illustrating the auxiliary positioning measurement method of a three-dimensional measuring instrument according to the present invention.
The three-dimensional measuring instrument, the control system and the software system (PC end) are arranged on site, the control system controls the operation of the three-dimensional measuring instrument and feeds back the measuring data of the three-dimensional measuring instrument to the software system.
S101: a limiting block is fixedly arranged on a measuring platform of the three-dimensional measuring instrument through a locking screw, and the limiting block is provided with a fixed embedded angle;
s102, placing a base card of the auxiliary measuring jig into the fixed embedded angle to enable the auxiliary measuring jig to finish alignment;
s103, placing the workpiece to be measured on the auxiliary measuring jig, and ensuring that the workpiece to be measured is fixed and does not move;
s104: starting a three-dimensional measuring instrument to measure a workpiece to be measured, wherein a probe of the three-dimensional measuring instrument measures the workpiece to be measured in three directions of an X axis, a Y axis and a Z axis respectively to obtain the shape, position tolerance and other geometric data of the workpiece to be measured;
s105: after the auxiliary measuring jig is replaced, workpieces to be measured with different structures can be measured.
Preferably, the fixed embedded angle of the limiting block can be set to be ninety degrees, for example, the limiting block is set to be L-shaped; meanwhile, the base of the auxiliary measuring jig can be processed to be at least provided with a right angle, so that the base of the auxiliary measuring jig can be embedded into the L-shaped limiting block, and the next similar workpiece can be fixed on the auxiliary measuring jig after each workpiece is measured; because the auxiliary measuring tool does not move, the workpieces are all positioned at the same position to be measured by the probe.
When the workpiece is placed on the auxiliary measuring jig in S103, the auxiliary measuring jig is provided with a structure for fixing the auxiliary workpiece according to different structures of the workpiece to be measured, because the probe of the three-dimensional measuring instrument must ensure that the workpiece does not move in the process of measuring the workpiece in the measuring process. For example, a pressing member is provided to fix the workpiece to be measured; the conical hanging rod is arranged, so that the workpiece to be measured with the hollow structure can be inserted into the conical hanging rod. Therefore, a plurality of sets of jigs can be arranged to meet the placing requirements of workpieces with different structures.
When the auxiliary measuring jig is replaced, the probe is moved to a safe position and a height to prevent collision.
Wherein, the relevant parameters of the three-dimensional measuring instrument are set as follows: the temperature is 20 +/-2 ℃; the relative humidity of air is 25-75%; the voltage is 220V +/-10% of alternating current; setting an independent special grounding wire: the grounding resistance is less than or equal to 4 omega; the air supply pressure is more than 0.5Mpa, and the cleaning and constant temperature of the workpiece are noticed.
Compared with the prior art, the three-dimensional measuring instrument has the advantages that the limiting block is arranged on the measuring platform of the three-dimensional measuring instrument, the base of the auxiliary measuring jig is placed in close contact with the limiting block, and then the three-dimensional measuring instrument measures. Therefore, the auxiliary measuring jig is placed on the same coordinate every time, and the coordinate does not need to be aligned on the platform again. Therefore, the problem of position deviation caused by repeated coordinate alignment is solved, and manpower and working hours are saved.
It should be noted that the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by those skilled in the art based on the technical solution of the present invention fall within the protection scope of the present invention.
Claims (8)
1. An auxiliary positioning measurement method for a three-dimensional measuring instrument is characterized by comprising the following steps:
(1) a limiting block is fixedly arranged on a measuring platform of the three-dimensional measuring instrument, and the limiting block is provided with a fixed embedded angle;
(2) placing the auxiliary measuring jig card into the fixed embedded angle;
(3) placing a workpiece to be measured on the auxiliary measuring jig;
(4) starting a three-dimensional measuring instrument to measure the workpiece to be measured;
the auxiliary measuring jig is arranged according to the shape of the workpiece to be measured, so that the workpiece to be measured can be stably placed on the auxiliary measuring jig.
2. The method of claim 1, wherein the stop block is fixed to the measuring platform by screws.
3. The method of claim 1, wherein the stop block is L-shaped.
4. The method of claim 3, wherein the base of the auxiliary measuring device has at least one right angle, and the right angle of the base is closely attached to the right angle of the limiting block when the auxiliary measuring device is placed.
5. The auxiliary positioning and measuring method of a three-dimensional measuring instrument according to claim 1, wherein the step (3) further comprises arranging a pressing member on the auxiliary measuring fixture for fixing the workpiece to be measured.
6. The auxiliary positioning and measuring method of a three-dimensional measuring instrument as claimed in claim 1, wherein the auxiliary measuring fixture further comprises a tapered hanging rod, and the to-be-measured workpiece with a hollow structure can be inserted into the tapered hanging rod.
7. The method of claim 1, wherein the step (4) further comprises measuring the workpiece to be measured by the three-dimensional measuring instrument to obtain shape, position tolerance and other geometric data.
8. The method of claim 1, further comprising a step (5) of replacing the auxiliary measuring fixture to measure the workpiece to be measured with different structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811283832.3A CN111121681A (en) | 2018-10-31 | 2018-10-31 | Auxiliary positioning measurement method for three-dimensional measurement instrument |
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| CN201811283832.3A CN111121681A (en) | 2018-10-31 | 2018-10-31 | Auxiliary positioning measurement method for three-dimensional measurement instrument |
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| CN111121681A true CN111121681A (en) | 2020-05-08 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204228129U (en) * | 2014-11-20 | 2015-03-25 | 苏州神本精密机械有限公司 | The subsidiary frock of three-D measuring machine |
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- 2018-10-31 CN CN201811283832.3A patent/CN111121681A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204228129U (en) * | 2014-11-20 | 2015-03-25 | 苏州神本精密机械有限公司 | The subsidiary frock of three-D measuring machine |
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Application publication date: 20200508 |
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