CN210374997U - Dimension measuring device and dimension measuring system - Google Patents
Dimension measuring device and dimension measuring system Download PDFInfo
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- CN210374997U CN210374997U CN201921781676.3U CN201921781676U CN210374997U CN 210374997 U CN210374997 U CN 210374997U CN 201921781676 U CN201921781676 U CN 201921781676U CN 210374997 U CN210374997 U CN 210374997U
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Abstract
The utility model discloses a size measuring device, include: a drive motor; a transmission mechanism connected with an output shaft of the driving motor and outputting linear motion; the first sensor is arranged at the output end of the transmission mechanism and used for sequentially detecting a first boundary position and a second boundary position of the part to be detected of the workpiece in the moving process; and the processor is connected with the first sensor and used for determining a first corner position of the driving motor when acquiring the signal that the first sensor detects the first boundary position, determining a second corner position of the driving motor when acquiring the signal that the first sensor detects the second boundary position, and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position. The product size can be automatically detected, and the measurement accuracy is high. The utility model also discloses a size measurement system of including this size measurement device.
Description
Technical Field
The utility model relates to a measuring instrument technical field, more specifically say, relate to a size measurement device. Furthermore, the utility model discloses still relate to a size measurement system including above-mentioned size measurement device.
Background
In the automatic production line process, in order to ensure that the size of a certain part of a product is qualified, the size of the specific part of the product is often required to be detected so as to reject products with unqualified sizes.
In the prior art, an operator usually holds a go-no go gauge for detection, however, the go-no go gauge only can judge whether the size is qualified, cannot measure a specific value of the size, and is inconvenient to confirm the size error of a single product; on the other hand, after a worker works for a long time, the mind is easily exhausted, the attention is not concentrated, and misjudgment is easily caused.
Therefore, how to provide a dimension measuring device capable of improving the measurement accuracy is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a size measurement device can the concrete value of automated inspection product size, avoids artifical the measurement, prevents to measure the rate of accuracy height because of the erroneous judgement that the human factor influence caused.
Another object of the utility model is to provide a dimension measuring system including above-mentioned dimension measuring device can realize product size concrete value automated inspection's pipelining.
In order to achieve the above object, the present invention provides the following technical solutions:
a dimensional measurement device comprising:
a drive motor;
the transmission mechanism is connected with an output shaft of the driving motor and outputs linear motion;
the first sensor is arranged at the output end of the transmission mechanism and used for sequentially detecting a first boundary position and a second boundary position of the part to be detected of the workpiece in the moving process, wherein the first boundary position and the second boundary position respectively correspond to two end point positions of the size of the part to be detected of the workpiece;
and the processor is connected with the first sensor and used for determining a first corner position of the driving motor when acquiring the signal that the first sensor detects the first boundary position, determining a second corner position of the driving motor when acquiring the signal that the first sensor detects the second boundary position, and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position.
Preferably, the processor comprises:
a counting instruction unit, configured to start counting pulses sent to the driving motor by a controller for controlling the driving motor to operate when the first sensor detects the first boundary position; when the first sensor detects the second boundary position, recording the accumulated total number of pulses;
the rotation angle position determining unit is used for receiving the total number of the pulses sent by the counting instruction unit and determining the second rotation angle position according to the total number of the pulses and the rotation angle of the driving motor corresponding to the single pulse, wherein the first rotation angle position is zero;
and the distance calculation unit is used for receiving the first corner position and the second corner position sent by the corner position determination unit and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position.
Preferably, the device further comprises an angle sensor for detecting a rotation angle of the driving motor, wherein the angle sensor is connected with the processor, so that when the processor receives a signal that the first sensor detects the first boundary position, the processor acquires the first rotation angle position detected by the angle sensor; and when the processor receives the signal that the first sensor detects the second boundary position, the processor is enabled to acquire the second corner position detected by the angle sensor.
Preferably, the first sensor is a retro-reflection type sensor, and further includes a retro-reflection plate disposed opposite to the retro-reflection type sensor.
Preferably, the retro-reflection type sensor comprises an emitter, a receiver and two polarization filters with opposite installation angles, wherein the two polarization filters are respectively arranged in one-to-one correspondence with the emitter and the receiver;
the retro-reflection plate comprises two mirror surfaces which are perpendicular to each other, and the two mirror surfaces are respectively arranged in one-to-one correspondence with the two polarization filters.
Preferably, the device further comprises a limit switch for detecting whether the first sensor moves to an extreme position, and the limit switch is connected with the processor so that the processor controls the driving motor to stop rotating or rotate reversely when the limit switch detects that the first sensor moves to the extreme position.
Preferably, the retro-reflection type sensor is a retro-reflection type laser sensor.
Preferably, the driving motor is a servo motor, and the transmission mechanism is a linear module.
A dimensional measurement system comprising:
any one of the above dimensional measuring devices;
the size measuring device is arranged on the side face of the conveying line corresponding to the detection station;
the control system is used for controlling the start and stop of the conveying line;
and the second sensor is used for detecting whether the workpiece reaches the detection station, the second sensor is connected with the control system, the control system is connected with the processor of the size measuring device, so that when the workpiece reaches the detection station, the control system controls the conveying line to stop moving, and after the conveying line stops moving, the processor controls the driving motor of the size measuring device to be started so as to detect the size of the part to be detected of the workpiece.
Preferably, the transfer line is provided with a defective product transfer station, and further comprises:
the lifting stopper is used for lifting to stop the workpiece to the unqualified product transfer station when the size of the workpiece is unqualified;
a defective product conveying line for conveying defective products;
the transfer device is arranged below the conveying line corresponding to the unqualified product transfer station and used for transferring the blocked workpieces to the unqualified product conveying line, and the transfer device can be lifted and translated; the stopper and the transfer device are connected with the control system, so that the stopper is controlled to lift through the control system, the transfer device is controlled to act, and the passing of qualified products and the transfer of unqualified products are realized.
The utility model provides a size measuring device, concrete value that can the automated inspection product size compares in the size that prior art adopted artifical handheld go-no go gage to detect the work piece, avoids the manual measurement, consequently, has avoided influencing the misjudgement that causes because of the human factor, simultaneously, because this size measuring device can detect out the concrete value of product size, is convenient for confirm the dimensional error of single product, has improved the measuring accuracy, in addition, still reduced intensity of labour, practiced thrift the cost of labor.
The utility model provides a dimension measuring system, including above-mentioned dimension measuring device, can realize product size concrete value automated inspection's streamlined operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dimension measuring device according to an embodiment of the present invention in a measuring state;
FIG. 2 is a schematic diagram of the operation of the retro-reflective sensor of FIG. 1;
fig. 3 is a schematic structural diagram of a dimension measuring system according to an embodiment of the present invention.
The reference numerals in fig. 1 and 2 are as follows:
the sensor comprises a retro-reflection type sensor 1, a transmitter 11, a receiver 12, a first polarization filter 13, a second polarization filter 14, a light beam 15, a retro-reflection plate 2, a first mirror 21, a second mirror 22, a servo motor 3, a linear module 4, a limit switch 5 and a workpiece 6.
The reference numerals in fig. 3 are as follows:
100 is a dimension measuring device, 200 is a transfer line, 300 is a stopper, 400 is a transfer device, 500 is a defective transfer line, and 600 is a workpiece pallet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a size measuring device, concrete value that can automated inspection product size avoids the manual measurement, prevents to measure the rate of accuracy height because of the erroneous judgement that the human factor influence caused. The utility model discloses a another core provides a dimension measurement system including above-mentioned dimension measurement device, can realize product size concrete value automated inspection's streamlined operation.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a dimension measuring device according to an embodiment of the present invention in a measuring state; fig. 2 is a schematic diagram of the operation principle of the retro-reflective sensor in fig. 1.
The utility model provides a size measuring device, which comprises a driving motor, a transmission mechanism, a first sensor and a processor, wherein the driving motor is used as a power source and is used for outputting rotary motion; the input end of the transmission mechanism is connected with the output shaft of the driving motor, the output end of the transmission mechanism is connected with the first sensor, the transmission mechanism is used for converting the rotary motion output by the driving motor into the linear motion of the first sensor, and the first sensor is used for sequentially detecting the first boundary position and the second boundary position of the part to be detected of the workpiece in the moving process of the first sensor.
The first boundary position and the second boundary position respectively correspond to two end point positions of the size of the part to be measured of the workpiece.
It should be noted that the utility model does not specifically limit the part of the workpiece to be measured, and the part of the workpiece to be measured can directly correspond to the required size, i.e., the measured size is the required size; the part of the workpiece to be measured can also indirectly correspond to the required dimension, namely, the required dimension is obtained by subtracting or adding the structural dimension of the workpiece to the measured dimension so as to facilitate measurement. For example, when the required size is the distance between the hangers of the automobile generator, the distance between the hangers can be directly measured, at the moment, the part to be measured of the workpiece is the gap between the two hangers, and the first boundary position and the second boundary position respectively correspond to the inner side surfaces of the two hangers. Of course, the distance between the hangers can also be indirectly measured, for example, the size of the part to be measured of the workpiece can be the distance between the outer side surfaces of the two hangers, at this time, the first boundary position and the second boundary position respectively correspond to the outer side surfaces of the two hangers, but the thickness of the two hangers needs to be subtracted from the measured size, and it can be understood that the required size measured by adopting the measurement scheme includes the processing error of the two hangers. Of course, other measurement schemes can be adopted, the utility model discloses do not limit to specific measurement scheme, and the technical personnel in the art can take different measurement schemes according to the actual demand.
The following describes a specific measurement method by taking the example of directly measuring the distance between two hangers.
It is understood that, for example, when the first sensor is a laser sensor, the laser beam emitted by the first sensor will be blocked by the hangers when the first sensor is aligned with the hangers during the movement of the first sensor, and the laser beam emitted by the first sensor will not be blocked when the first sensor is moved to a position between two hangers, so that, when the laser beam emitted by the first sensor is changed from a blocked state to an unblocked state when the first sensor is moved from a position corresponding to a hanger to a position between two hangers during the movement of the first sensor, the first sensor will detect the first boundary position; when the first sensor moves from a position corresponding to the position between two hangers to a position corresponding to the next hanger, and the laser beam emitted by the first sensor is changed from a non-shielded state to a shielded state, the first sensor detects the second boundary position, that is, the first sensor can detect the first boundary position and the second boundary position according to the on-off state of the laser beam emitted by the first sensor.
The first sensor is connected with the processor to realize signal transmission between the first sensor and the processor. When the first sensor detects a first boundary position of a part to be detected of the workpiece, sending a detected signal to the processor, and determining a first rotating angle position of the driving motor after the processor receives the detected signal of the first sensor; when the first sensor detects a second boundary position of the part to be detected of the workpiece, sending a detected signal to the processor, and after receiving the detection signal of the first sensor, determining a second corner position of the driving motor by the processor; and then, the processor calculates and obtains the moving distance corresponding to the first sensor according to the angle difference between the first rotating angle position and the second rotating angle position of the driving motor, and further determines the distance between the first boundary position and the second boundary position according to the moving distance of the first sensor, wherein the distance between the first boundary position and the second boundary position is the specific size value of the part to be measured of the workpiece.
It is understood that the first sensor is disposed at the output end of the transmission mechanism, and according to the transmission ratio of the transmission mechanism, the corresponding relationship between the rotation angle of the driving motor and the moving distance of the first sensor can be determined, that is, the position of the driving motor determines the position of the first sensor. Meanwhile, according to the relative position relation between the first sensor and the workpiece 6 in the moving process, when the first sensor detects the first boundary position of the part to be detected of the workpiece, the first sensor corresponds to the first position of the first sensor; when the first sensor detects a second boundary position of the part to be measured of the workpiece, the position of the first sensor corresponds to the second position of the part to be measured of the workpiece, namely, the position of the first sensor corresponds to the first boundary position and the second boundary position. Thus, based on the angular difference between the first and second angular positions of the drive motor, the distance of movement of the first sensor and, thus, the distance between the first and second boundary positions can be determined.
It will be appreciated that the direction of movement of the first sensor is preferably arranged parallel to the direction of the line between the first boundary position and the second boundary position to facilitate the determination of the separation between the first boundary position and the second boundary position in dependence on the distance traveled by the first sensor.
In view of the specific manner in which the processor determines the first rotational angle position and the second rotational angle position, on the basis of the above-described embodiment, the processor includes a count instruction unit, a rotational angle position determination unit, and a distance calculation unit.
The counting instruction unit is used for starting to count the pulses sent to the driving motor by the controller for controlling the driving motor to operate when the first sensor detects the first boundary position; and recording the accumulated total number of pulses when the first sensor detects the second boundary position.
The corner position determining unit is connected with the counting instruction unit and used for receiving the total number of the pulses sent by the counting instruction unit and determining a second corner position according to the total number of the pulses and the corner of the driving motor corresponding to the single pulse, wherein the first corner position is zero;
the distance calculation unit is connected with the corner position determination unit and used for receiving the first corner position and the second corner position sent by the corner position determination unit and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position.
It will be appreciated that the drive motor is connected to a controller for controlling the operation of the drive motor, and the processor is connected to the controller, and the controller is arranged to rotate the drive motor through an angle for each pulse sent to the drive motor, i.e. the angular position of the drive motor is related to the number of pulses sent by the controller, so that the angular difference between the first and second angular positions of the drive motor is obtained by multiplying the total number of pulses by the rotational angle of the drive motor for a single pulse.
Of course, the processor may also determine the first and second rotational angle positions in other ways, for example, on the basis of the above embodiment, the processor further includes an angle sensor for detecting a rotational angle of the driving motor, the angle sensor is connected to the processor, so that when the processor receives a signal that the first sensor detects the first boundary position, the processor acquires the first rotational angle position detected by the angle sensor; and when the processor receives the signal that the first sensor detects the second boundary position, the processor is enabled to acquire the second corner position detected by the angle sensor.
That is, the present embodiment detects the rotation angle of the driving motor in real time by providing the angle sensor, and causes the angle sensor to transmit the real-time rotation angle of the driving motor to the processor through communication transmission between the angle sensor and the processor, so that when the first sensor detects the first boundary position, the processor can acquire the first rotation angle position of the driving motor corresponding to the first boundary position through the detection signal of the angle sensor; when the first sensor detects the second boundary position, the processor may acquire a second rotational angle position of the drive motor corresponding to the second boundary position from the detection signal of the angle sensor.
It should be noted that the present invention does not limit the specific type of the driving motor, for example, the driving motor may be a servo motor 3, a stepping motor or a dc motor, and those skilled in the art can select the driving motor according to actual needs.
In view of convenience of control, it is preferable that the driving motor is a servo motor 3.
Additionally, the utility model discloses do not restrict drive mechanism's concrete structure, as long as can change driving motor's rotary motion into the linear motion of first sensor can, preferably, drive mechanism is sharp module 4.
The utility model discloses do not restrict the concrete type of first sensor, as long as can detect the work piece position of awaiting measuring first boundary position and second boundary position can.
As a preferable mode, on the basis of any one of the above embodiments, the first sensor is a retro-reflection type sensor 1, and further includes a retro-reflection plate 2 disposed opposite to the retro-reflection type sensor 1.
It can be understood that the emitting end and the receiving end of the retro-reflective sensor 1 are integrated, and the light emitted from the emitting end is reflected back to the receiving end after being incident on the retro-reflective plate 2. If the workpiece 6 blocks light, the amount of light entering the receiving end is reduced, and therefore, the first boundary position and the second boundary position of the part to be measured of the workpiece can be determined according to the change of the amount of light received by the receiving end.
In order to improve the detection accuracy, on the basis of the above embodiment, the retro-reflection type sensor 1 includes the transmitter 11, the receiver 12, and two polarization filters with opposite installation angles, the two polarization filters are respectively arranged in one-to-one correspondence with the transmitter 11 and the receiver 12; the retro-reflection plate 2 includes two mirror surfaces that are arranged perpendicular to each other, and the two mirror surfaces are respectively arranged in one-to-one correspondence with the two polarization filters.
In view of convenience of description, the two polarization filters are referred to as a first polarization filter 13 and a second polarization filter 14, respectively, and the two mirror surfaces are referred to as a first mirror surface 21 and a second mirror surface 22, respectively.
As shown in fig. 2, when the first boundary position and the second boundary position of the portion to be measured of the workpiece do not block light, the light emitted by the emitter 11 passes through the first polarization filter 13 and then becomes polarized light vibrating in a single direction; the light is reflected twice by the first mirror 21 and the second mirror 22 and then returns along the original light path, and the polarization direction is opposite to the incoming light direction, and the reflected light reaches the receiver 12 through the second polarization filter 14.
When the first boundary position or the second boundary position of the part to be measured of the workpiece blocks the light emitted by the emitter 11, the light is reflected only once, and the vibration direction is not changed, so that the light reflected by the workpiece 6 cannot pass through the second polarization filter 14, and thus whether the light emitted by the emitter 11 is blocked by the workpiece 6 can be accurately distinguished, and the first boundary position or the second boundary position can be accurately detected.
Further, in order to enable the retro-reflective sensor 1 to more accurately detect the first boundary position or the second boundary position, on the basis of the above-described embodiment, the retro-reflective sensor 1 is a retro-reflective laser sensor.
In order to control the two extreme positions of the movement of the first sensor, on the basis of any one of the above embodiments, the sensor further comprises a limit switch 5 for detecting whether the first sensor moves to the extreme positions, and the limit switch 5 is connected with a controller for controlling the operation of the driving motor, so that when the limit switch 5 detects that the first sensor moves to the extreme positions, the driving motor is controlled by the controller to stop rotating or rotate reversely.
It will be appreciated that the limit switches 5 are two in number, and are used to detect whether the first sensor has reached the corresponding two limit positions, respectively.
When the transmission mechanism is a linear module 4, the limit switch 5 is preferably arranged on the housing of the linear module 4.
To sum up, the utility model provides a size measuring device, concrete value that can the automated inspection product size compares in prior art and adopts artifical handheld logical no-go gage to detect the size of work piece 6, avoids artifical the measurement, consequently, has avoided the misjudgement because of the human factor influence causes, simultaneously, because this size measuring device can detect out the concrete value of product size, is convenient for confirm the dimensional error of single product, has improved the measuring accuracy, in addition, has still reduced intensity of labour, has practiced thrift the cost of labor.
The size measuring device can be applied to size detection of various products, and can be used for detecting the distance between automobile generator hangers, for example.
Please refer to fig. 3, which is a schematic structural diagram of a dimension measuring system according to an embodiment of the present invention.
Note that the direction indicated by an arrow in fig. 3 is a conveying direction of the workpiece.
In addition to the size measuring device 100, the present invention further provides a size measuring system including the size measuring device 100 disclosed in the above embodiment, the size measuring system further includes a conveying line 200 for conveying the workpiece, a second sensor and a control system, the conveying line 200 is provided with a detection station, and the size measuring device is disposed on a side surface of the conveying line 200 corresponding to the detection station; the second sensor is used for detecting whether the workpiece reaches the detection station or not, and is connected with the control system so as to send the in-place information of the workpiece to the control system; the control system is used for controlling the start and stop of the conveying line 200, and is connected with the processor of the dimension measuring device 100 to realize communication transmission between the control system and the processor.
When the second sensor detects that the workpiece reaches the detection station, the second sensor sends workpiece in-place information to the control system, the control system receives the workpiece in-place information and controls the conveying line 200 to stop moving, and after the conveying line 200 stops moving, the processor controls the driving motor of the size measuring device to be started so as to detect the size of the part to be detected of the workpiece.
In this embodiment, the workpiece is set on the workpiece pallet 600.
Therefore, the dimension measuring system can realize the assembly line operation of automatically detecting the specific value of the dimension of the product.
In consideration of the treatment of defective products when the sizes of the workpieces are unqualified, on the basis of the above embodiment, the conveying line 200 is provided with a defective product transferring station, the size measuring system further comprises a stopper 300, a transferring device 400 and a defective product conveying line 500, and both the stopper 300 and the transferring device 400 are connected with the control system.
The stopper 300 can be lifted, and when the size of the workpiece is unqualified, the stopper 300 is controlled to lift through the control system so as to stop the workpiece at an unqualified product transfer station; when the size of the workpiece is qualified, the control system controls the stopper 300 to descend so as to release the qualified workpiece, and the workpiece is continuously conveyed to a subsequent station by the conveying line 200.
The transfer device 400 is arranged below the conveying line 200 and is arranged corresponding to the unqualified product transfer station, and the transfer device 400 can be lifted and translated. When the unqualified workpiece is blocked at the unqualified product transfer station by the stopper 300, the transfer device 400 is controlled to lift up through the control system so as to lift up the unqualified workpiece; then, the control system controls the transfer device 400 to transfer the unqualified workpieces to the defective product conveying line 500 according to a preset path, so that the unqualified workpieces are transferred.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a size measurement device and size measurement system have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A dimensional measurement device, comprising:
a drive motor;
the transmission mechanism is connected with an output shaft of the driving motor and outputs linear motion;
the first sensor is arranged at the output end of the transmission mechanism and used for sequentially detecting a first boundary position and a second boundary position of the part to be detected of the workpiece in the moving process, wherein the first boundary position and the second boundary position respectively correspond to two end point positions of the size of the part to be detected of the workpiece;
and the processor is connected with the first sensor and used for determining a first corner position of the driving motor when acquiring the signal that the first sensor detects the first boundary position, determining a second corner position of the driving motor when acquiring the signal that the first sensor detects the second boundary position, and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position.
2. The dimensional measurement device of claim 1, wherein the processor comprises:
a counting instruction unit, configured to start counting pulses sent to the driving motor by a controller for controlling the driving motor to operate when the first sensor detects the first boundary position; when the first sensor detects the second boundary position, recording the accumulated total number of pulses;
the rotation angle position determining unit is used for receiving the total number of the pulses sent by the counting instruction unit and determining the second rotation angle position according to the total number of the pulses and the rotation angle of the driving motor corresponding to the single pulse, wherein the first rotation angle position is zero;
and the distance calculation unit is used for receiving the first corner position and the second corner position sent by the corner position determination unit and calculating the distance between the first boundary position and the second boundary position according to the angle difference between the first corner position and the second corner position.
3. The dimensional measurement device according to claim 1, further comprising an angle sensor for detecting a rotation angle of the driving motor, the angle sensor being connected to the processor to cause the processor to acquire the first rotation angle position detected by the angle sensor when the processor receives a signal that the first sensor detects the first boundary position; and when the processor receives the signal that the first sensor detects the second boundary position, the processor is enabled to acquire the second corner position detected by the angle sensor.
4. A dimension measuring device according to any one of claims 1-3, characterized in that the first sensor is a retro-reflective sensor (1), further comprising a retro-reflector plate (2) arranged opposite the retro-reflective sensor (1).
5. The dimensional measurement device according to claim 4, characterized in that the retro-reflective sensor (1) comprises an emitter (11), a receiver (12) and two polarization filters with opposite installation angles, the two polarization filters being arranged in one-to-one correspondence with the emitter (11) and the receiver (12), respectively;
the retro-reflection plate (2) comprises two mirror surfaces which are perpendicular to each other, and the two mirror surfaces are respectively arranged in one-to-one correspondence with the two polarization filters.
6. The dimension measuring device according to claim 4, further comprising a limit switch (5) for detecting whether the first sensor is moved to an extreme position, wherein the limit switch (5) is connected to a controller for controlling the operation of the driving motor, so that the controller controls the driving motor to stop or reverse when the limit switch (5) detects that the first sensor is moved to the extreme position.
7. Dimensional measuring device according to claim 4, characterized in that the retro-reflective sensor (1) is a retro-reflective laser sensor.
8. The dimensional measurement device of claim 4, wherein the drive motor is a servo motor and the transmission mechanism is a linear module.
9. A dimensional measurement system, comprising:
the dimensional measurement device (100) of any of claims 1-8;
the size measuring device comprises a conveying line (200) used for conveying workpieces, wherein a detection station is arranged on the conveying line (200), and the size measuring device (100) is arranged on the side face, corresponding to the detection station, of the conveying line (200);
the control system is used for controlling the start and stop of the conveying line (200);
and the second sensor is used for detecting whether the workpiece reaches the detection station, the second sensor is connected with the control system, the control system is connected with the processor of the size measuring device (100), so that when the workpiece reaches the detection station, the control system controls the conveying line (200) to stop moving, and after the conveying line (200) stops moving, the processor controls the driving motor of the size measuring device (100) to be started so as to detect the size of the part to be detected of the workpiece.
10. The dimensional measurement system according to claim 9, wherein the conveyor line (200) is provided with a reject transfer station, further comprising:
the lifting stopper (300) is used for lifting to stop the workpiece to the unqualified product transfer station when the size of the workpiece is unqualified;
a defective product conveying line (500) for conveying defective products;
the transfer device (400) is arranged below the conveying line (200) corresponding to the unqualified product transfer station and used for transferring the blocked workpieces to the unqualified product conveying line (500), and the transfer device (400) can be lifted and translated; the stopper (300) and the transfer device (400) are connected with the control system, so that the stopper (300) is controlled to lift through the control system, the transfer device (400) is controlled to act, and the passing of qualified products and the transfer of unqualified products are realized.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110553589A (en) * | 2019-10-22 | 2019-12-10 | 蓝思智能机器人(长沙)有限公司 | Dimension measuring device, dimension measuring method and dimension measuring system |
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| CN110553589A (en) * | 2019-10-22 | 2019-12-10 | 蓝思智能机器人(长沙)有限公司 | Dimension measuring device, dimension measuring method and dimension measuring system |
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