CN114632669A - Correcting device and correcting method thereof - Google Patents
Correcting device and correcting method thereof Download PDFInfo
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- CN114632669A CN114632669A CN202210191982.1A CN202210191982A CN114632669A CN 114632669 A CN114632669 A CN 114632669A CN 202210191982 A CN202210191982 A CN 202210191982A CN 114632669 A CN114632669 A CN 114632669A
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- seat
- induction
- sliding seat
- sliding
- needle head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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Abstract
The application provides a correcting device and a correcting method thereof, wherein the correcting device comprises a supporting seat; the sliding seat is arranged on the supporting seat in a sliding manner; one end of the induction pressure lever is connected with the sliding seat, and the other end of the induction pressure lever extends out of the supporting seat; the first induction touch rod is arranged on the supporting seat; the second induction contact rod is arranged on the sliding seat and is opposite to the first induction contact rod; one end of the elastic piece is connected with the sliding seat in an abutting mode, and the other end of the elastic piece is connected with the supporting seat in an abutting mode. When the needle head pushes the induction pressure rod to descend, the induction pressure rod drives the sliding seat to descend, the second induction contact rod is separated from the first induction contact rod, the master control system receives the disconnection signal, and the signal change point can be accurately known by recording the position of the needle head at the moment, so that the calibration and subsequent compensation of the needle head are realized, and the calibration precision and the dispensing quality of the needle head are improved. The sliding seat can be upwards pushed by the elastic piece, and the second induction contact rod is abutted against the first induction contact rod so as to restore to the initial position state, thereby facilitating subsequent repeated correction operation.
Description
Technical Field
The present application belongs to the field of dispensing technology, and more particularly, to a calibration apparatus and a calibration method thereof.
Background
In the process of dispensing, the optical fiber and the photoelectric sensor need to use the sensing sheet to shield the probe of the dispensing device so as to generate signal changes, and the signals are transmitted to the master control system through the cable to be processed so as to control the stroke of the needle head of the dispensing device. When the dispensing equipment is used for a long time or the needle is replaced, the position of the needle needs to be calibrated.
However, the mounting position of the sensing piece cannot be debugged to an accurate signal change point, and the sensing precision and the repeatability cannot meet the requirement of precise position calibration, so that the dispensing quality of the needle head is affected.
Disclosure of Invention
An object of the embodiments of the present application is to provide a calibration apparatus and a calibration method thereof, so as to solve the problems existing in the related art: the problem that the calibration precision of a needle head and the dispensing quality are affected due to the fact that the current sensor cannot accurately obtain a signal change point is solved.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in one aspect, a calibration apparatus is provided, including:
a supporting seat;
the sliding seat is slidably arranged on the supporting seat;
one end of the induction pressure lever is connected with the sliding seat, and the other end of the induction pressure lever extends out of the supporting seat;
the first induction contact rod is arranged on the supporting seat;
the second induction contact rod is arranged on the sliding seat and is opposite to the first induction contact rod;
and one end of the elastic piece is abutted to the sliding seat, and the other end of the elastic piece is abutted to the supporting seat, and is used for abutting and pushing the second induction contact rod towards the direction of the first induction contact rod.
In one embodiment, the supporting seat comprises a base seat, a top seat arranged opposite to the base seat and a connecting seat connecting the base seat and the top seat, the first sensing contact rod is arranged on the top seat, the sliding seat is slidably arranged on the connecting seat, the sliding seat is positioned between the base seat and the top seat, and the sensing pressure rod extends out of the top seat; one end of the elastic piece is abutted to the base, and the other end of the elastic piece is abutted to the sliding seat.
The structure can limit the sliding seat between the top seat and the base seat, thereby limiting the sliding stroke of the sliding seat in the Z-axis direction.
In one embodiment, the supporting seat further comprises a sliding rail mounted on the connecting seat and a sliding block mounted on the sliding rail, and the sliding seat is mounted on the sliding block.
The structure improves the reliability of the reciprocating movement of the sliding seat on the supporting seat.
In one embodiment, the connecting seat is provided with a mounting groove for the slide rail to extend into.
This structure realizes the quick location installation to the slide rail.
In one embodiment, the top seat is provided with a groove for the end of the connecting seat far away from the base to extend into.
This structure realizes the quick location installation to the footstock to and ensure the levelness of footstock.
In one embodiment, the calibration device further includes a limiting member for limiting the stroke of the sliding seat, one end of the limiting member is mounted on the supporting seat, and the other end of the limiting member abuts against the sliding seat.
With the structure, the sliding seat is resisted by the limiting piece in the descending process, so that the descending stroke of the sliding seat can be limited.
In one embodiment, the sliding seat is provided with a through hole for the limiting member to extend into.
According to the structure, the limiting piece extends into the through hole to realize directional guide of the sliding seat during reciprocating motion.
In one embodiment, the supporting seat is provided with a first positioning groove for one end of the elastic element to extend into, the sliding seat is provided with a second positioning groove for the other end of the elastic element to extend into, and the first positioning groove is arranged right opposite to the second positioning groove.
This structure can prevent the elastic member from being displaced during the deformation process.
In another aspect, a calibration method is provided, which uses the above calibration apparatus, and the calibration method includes the following steps:
s1, moving the needle head to the position right above the sensing pressure rod by the mobile equipment, and acquiring and storing the coordinate position of the mobile equipment;
s2, the mobile equipment drives the needle head to descend along the Z-axis direction, the needle head presses the induction pressure rod until the second induction contact rod is separated from the first induction contact rod, and the main control system stops when receiving a disconnection signal;
s3, the mobile equipment drives the needle head to ascend along the Z-axis direction in a single step distance of 1 mu m until the needle head stops ascending when the signal received by the main control system changes, and the Z-axis coordinate of the needle head is recorded as Zn;
s4, moving the mobile equipment to a laser altimeter, wherein the laser altimeter measures the horizontal height of the top surface of the induction pressure lever to be H, and records the Z-axis coordinate of the mobile equipment to be Zh;
s5, calculating the offset of the laser altimeter and the needle head in the Z-axis direction: Δ Z ═ Zn-Zh;
s6, the height of the product measured by the laser altimeter is Hp, the dispensing height to be compensated is Δ H — Hp, and the Z-axis coordinate of the actual dispensing is: z is ZH + Δ Z + Δ H.
In one embodiment, the elastic member is in a compressed state during the steps S1 to S2.
The structure ensures that the elastic piece always has the tendency of elastically pushing the sliding seat.
The correction device and the correction method thereof provided by the embodiment of the application have the following beneficial effects: when the needle head pushes the induction pressure rod to descend, the induction pressure rod drives the sliding seat to descend, the second induction contact rod is separated from the first induction contact rod, the master control system receives the disconnection signal, and the signal change point can be accurately known by recording the position of the needle head at the moment, so that the calibration and subsequent compensation of the needle head are realized, and the calibration precision and the dispensing quality of the needle head are improved. The sliding seat can be upwards pushed by the elastic piece, and the second induction contact rod is abutted against the first induction contact rod so as to restore to the initial position state, thereby facilitating subsequent repeated correction operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a calibration device according to an embodiment of the present disclosure;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic structural diagram of a support seat according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a sliding seat according to an embodiment of the present disclosure;
FIG. 5 is a front view of the calibration device according to the embodiment of the present disclosure in an initial position;
fig. 6 is a front view of the correction device according to the embodiment of the present application in a signal-off state.
Wherein, in the drawings, the reference numerals are mainly as follows:
1. a supporting seat; 10. opening a hole; 11. a first mounting seat; 12. a base; 120. a screw hole; 121. a first positioning groove; 13. a top seat; 131. a groove; 14. a connecting seat; 141. mounting grooves; 142. an avoidance groove;
2. a sliding seat; 20. mounting holes; 21. a second mounting seat; 22. a through hole; 23. a second positioning groove;
3. an induction pressure lever; 4. a first sensing feeler lever; 5. a second sensing feeler lever; 6. an elastic member; 7. a slide rail; 8. a slider; 9. and a limiting member.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
For convenience of description, three coordinate axes which are mutually vertical in space are defined as an X axis, a Y axis and a Z axis respectively, and meanwhile, the direction along the X axis is longitudinal, the direction along the Y axis is transverse, and the direction along the Z axis is vertical; the X axis and the Y axis are two coordinate axes which are vertical to each other on the same horizontal plane, and the Z axis is a coordinate axis in the vertical direction; the X axis, the Y axis and the Z axis are positioned in space and are mutually vertical, and three planes are respectively an XY plane, a YZ plane and an XZ plane, wherein the XY plane is a horizontal plane, the XZ plane and the YZ plane are vertical planes, and the XZ plane is vertical to the YZ plane. Three axes in space are an X axis, a Y axis and a Z axis, and the three-axis movement in space refers to the movement along three axes which are vertical to each other in space, and particularly refers to the movement along the X axis, the Y axis and the Z axis in space; the planar motion is a motion in the XY plane.
Referring to fig. 1 and fig. 2, a calibration apparatus provided in an embodiment of the present application will now be described. The correcting device comprises a supporting seat 1, a sliding seat 2, an induction pressure rod 3, a first induction contact rod 4, a second induction contact rod 5 and an elastic piece 6. Wherein, the supporting seat 1 can be fixedly connected with the external fixing piece, thereby fixedly installing the correcting device on the external fixing piece and facilitating the correction operation of the needle head. The sliding seat 2 is slidably mounted on the supporting seat 1, and the sliding seat 2 slides on the supporting seat 1, so that the second sensing feeler lever 5 can be driven to move together, and the position of the second sensing feeler lever 5 can be adjusted.
One end of the induction pressure lever 3 is connected with the sliding seat 2, and the other end extends out of the supporting seat 1. Specifically, the sliding seat 2 is provided with a mounting hole 20, and one end of the induction pressure lever 3 extends into the mounting hole 20. The inner peripheral surface of the mounting hole 20 can be provided with an internal thread, the outer peripheral surface of the induction compression bar 3 can be provided with an external thread, and the induction compression bar 3 can be fixedly connected with the sliding seat 2 through the internal thread and the external thread. And the height of the induction compression bar 3 extending out of the supporting seat 1 can be adjusted through threaded connection, so that the correction device can be suitable for the correction of different types and sizes of needles, and has good adaptability. Offer the trompil 10 that supplies the other end of response depression bar 3 to stretch out on the supporting seat 1, the section that stretches out that the response depression bar 3 stretches out trompil 10 can cooperate the butt with the syringe needle, should stretch out the top surface of section and syringe needle cooperation butt for the plane to can regard as the reference surface, with the improvement to the calibration precision of syringe needle.
First response feeler lever 4 is installed on supporting seat 1, and second response feeler lever 5 is installed on sliding seat 2 and just sets up to first response feeler lever 4. Specifically, the first sensing feeler lever 4 can be supported by the first mounting seat 11, and the first mounting seat 11 can be detachably mounted on the supporting seat 1, for example, the first mounting seat 11 can be mounted and fixed on the supporting seat 1 by a fastener such as a screw. First mount pad 11 is last to open and to be equipped with the first locating hole that supplies the one end of first response feeler lever 4 to stretch into, and the other end of first response feeler lever 4 stretches out first mount pad 11. Wherein, the inner peripheral surface of first locating hole can be equipped with the internal thread, and the outer peripheral surface of first response feeler lever 4 can be equipped with the external screw thread, and the threaded connection realization of first response feeler lever 4 accessible internal thread and external screw thread is connected with dismantling of first mount pad 11. Moreover, the length of the first induction contact rod 4 extending out of the first mounting seat 11 can be adjusted through threaded connection, and then the distance between the first induction contact rod 4 and the second induction contact rod 5 can be adjusted.
Similarly, the second sensing feeler lever 5 can be supported by the second mounting seat 21, and the second mounting seat 21 can be detachably mounted on the sliding seat 2, for example, the second mounting seat 21 can be fixed on the sliding seat 2 by screws or other fasteners. A second positioning hole for allowing one end of the second sensing contact rod 5 to extend into can be formed in the second mounting seat 21, and the other end of the second sensing contact rod 5 extends out of the second mounting seat 21. Wherein, the inner peripheral surface of second locating hole can be equipped with the internal thread, and the outer peripheral surface of second response feeler lever 5 can be equipped with the external screw thread, and the threaded connection realization of second response feeler lever 5 accessible internal thread and external screw thread is connected with dismantling of second mount pad 21. Moreover, the length of the second induction contact rod 5 extending out of the second mounting seat 21 can be adjusted through threaded connection, and then the distance between the first induction contact rod 4 and the second induction contact rod 5 can be adjusted.
In one embodiment, referring to fig. 5, the central axis of the first sensing contact rod 4 and the central axis of the second sensing contact rod 5 are arranged in a collinear manner, and the central axis of the sensing press rod 3 and the central axis of the first sensing contact rod 4 are arranged in parallel at an interval. This structure can guarantee the in-process that response depression bar 3 reciprocated along the Z axle direction, and first response feeler lever 4 and second response feeler lever 5 are high with response depression bar 3's synchronous uniformity, avoid first response feeler lever 4 and second response feeler lever 5 to produce the displacement deviation in the Z axle direction.
In one embodiment, referring to fig. 5, a surface of the first inductive contact bar 4 facing the second inductive contact bar 5 is a first arc surface, and the first arc surface is protruded toward a direction close to the second inductive contact bar 5. Similarly, the second sensing feeler lever 5 is a second arc-shaped surface facing the first sensing feeler lever 4, and the second arc-shaped surface is convexly arranged towards the direction close to the first sensing feeler lever 4. This structure, the bump of first arcwall face can cooperate the butt with the bump of second arcwall face closed, compares in the face contact, and first response feeler lever 4 and second response feeler lever 5 adopt the point contact, can effectively reduce the displacement stroke, and then improve the calibration accuracy.
One end of the elastic piece 6 is abutted against the sliding seat 2, and the other end is abutted against the supporting seat 1, so that the second induction contact rod 5 is abutted against and pushed towards the first induction contact rod 4. Specifically, the elastic member 6 and the sensing pressing rod 3 may be respectively disposed at both ends of the sliding seat 2. When the induction pressure lever 3 is acted by external force, the sliding seat 2 can be driven to move downwards, and the sliding seat 2 compresses the elastic piece 6. When the external force is removed, the elastic piece 6 pushes the sliding seat 2 to move upwards under the action of the resilience force, so that the second induction contact rod 5 is closed to be abutted to the first induction contact rod 4. Wherein, the elastic member 6 may be a spring.
When the correcting device is used, the first induction contact rod 4 and the second induction contact rod 5 are respectively and electrically connected with a main control system, for example, the first induction contact rod and the second induction contact rod can be connected through a lead. When the needle head is pushed against the induction pressure rod 3 to descend, the induction pressure rod 3 drives the sliding seat 2 to descend, the second induction contact rod 5 is separated from the first induction contact rod 4, the master control system receives a disconnection signal, and the signal change point can be accurately known by recording the position of the needle head at the moment, so that the calibration and subsequent compensation of the needle head are realized, and the calibration precision of the needle head and the dispensing quality are improved. The sliding seat 2 can be upwards propped and pushed through the elastic piece 6, and the second induction contact rod 5 is propped against the first induction contact rod 4 to recover to the initial position state, so that subsequent repeated correction operation is facilitated.
In an embodiment, please refer to fig. 3, as a specific implementation manner of the calibration device provided in the embodiment of the present application, the supporting seat 1 includes a base 12, a top seat 13 disposed opposite to the base 12, and a connecting seat 14 connecting the base 12 and the top seat 13, the first sensing contact rod 4 is mounted on the top seat 13, the sliding seat 2 is slidably mounted on the connecting seat 14, the sliding seat 2 is located between the base 12 and the top seat 13, and the sensing pressure rod 3 extends out of the top seat 13; one end of the elastic member 6 abuts against the base 12, and the other end of the elastic member 6 abuts against the slide base 2. Specifically, the mounting hole 20 may be opened on the top base 13; first mounting seat 11 may be mounted on connecting seat 14. With this structure, the sliding seat 2 can be restricted between the top seat 13 and the base seat 12, and the sliding stroke of the sliding seat 2 in the Z-axis direction can be restricted. Support for slide carriage 2 is achieved by connecting base 14.
In an embodiment, referring to fig. 2, as a specific implementation manner of the correction device provided in the embodiment of the present application, the supporting seat 1 further includes a sliding rail 7 mounted on the connecting seat 14 and a sliding block 8 mounted on the sliding rail 7, and the sliding seat 2 is mounted on the sliding block 8. Specifically, the length direction of the slide rail 7 is parallel to the central axis of the sensing pressure lever 3, so that the synchronism of the movement of the sensing pressure lever 3 and the slide base 2 in the Z-axis direction can be ensured. According to the structure, the sliding seat 2 slides on the supporting seat 1 through the sliding rail 7 and the sliding block 8, the reciprocating mobility of the sliding seat 2 is good, and the sensitivity is high.
In an embodiment, please refer to fig. 2 and fig. 3, as a specific implementation manner of the calibration device provided in the embodiment of the present application, the connecting seat 14 is provided with an installation groove 141 into which the sliding rail 7 extends. Specifically, the length direction of the mounting groove 141 is parallel to the central axis of the induction compression bar 3. Avoidance grooves 142 are respectively formed at both sides of one end of the mounting groove 141, and each avoidance groove 142 is communicated with the mounting groove 141. The avoiding groove 142 can be used for fingers to extend into, so that an operator can pick up the sliding rail 7 conveniently, and the sliding rail 7 can be disassembled and assembled conveniently. This structure can realize the quick location installation to slide rail 7 through mounting groove 141, and efficiency and installation accuracy are high.
In an embodiment, referring to fig. 3, as a specific implementation of the calibration device provided in the embodiment of the present application, the top seat 13 is formed with a groove 131 into which an end of the connecting seat 14 away from the base 12 extends. With this structure, the length direction of the groove 131 may be arranged along the width direction of the connection holder 14. With the structure, on one hand, the groove 131 can realize quick positioning between the top seat 13 and the connecting seat 14, so that the alignment precision and the installation efficiency are improved; on the other hand, the horizontal degree of the top seat 13, i.e. the vertical relationship between the top seat 13 and the connecting seat 14, can be ensured to ensure that there is no displacement deviation in the Z-axis direction.
In an embodiment, please refer to fig. 2 and fig. 3, as a specific implementation manner of the calibration device provided in the embodiment of the present application, the calibration device further includes a limiting member 9 for limiting the stroke of the sliding seat 2, one end of the limiting member 9 is installed on the supporting seat 1, and the other end of the limiting member 9 abuts against the sliding seat 2. Specifically, a screw hole 120 is formed in the base 12, the limiting member 9 may be a screw, the limiting member 9 is fixed to the base 12 through a threaded connection, and the distance between the limiting member 9 and the sliding seat 2 can be adjusted through a thread. With this structure, the slide holder 2 is stopped by the stopper 9 during the lowering process, so that the lowering stroke of the slide holder 2 can be restricted.
In an embodiment, referring to fig. 1 and fig. 4, as a specific implementation of the calibration device provided in the embodiment of the present application, a through hole 22 for the limiting member 9 to extend into is formed on the sliding seat 2. With this structure, the through hole 22 can perform a directional guiding function for the sliding seat 2, and prevent the sliding seat 2 from moving back and forth in the Z-axis direction to cause a position deviation.
In an embodiment, referring to fig. 2 to 4, as a specific implementation of the calibration device provided in the embodiment of the present application, the supporting seat 1 is provided with a first positioning groove 121 into which one end of the elastic element 6 extends, the sliding seat 2 is provided with a second positioning groove 23 into which the other end of the elastic element 6 extends, and the first positioning groove 121 is disposed opposite to the second positioning groove 23. Specifically, the first positioning groove 121 may be opened on the base 12, and both the first positioning groove 121 and the second positioning groove 23 are in a cylindrical configuration. With this structure, the two ends of the elastic member 6 respectively extend into the first positioning groove 121 and the second positioning groove 23, so as to prevent the elastic member 6 from being displaced during the deformation process.
In an embodiment, referring to fig. 2, the number of the elastic elements 6 may be two, and the two elastic elements 6 are respectively located at two sides of the limiting element 9. According to the structure, the elastic pushing effect of the sliding seat 2 can be improved through the two elastic pieces 6, and the problem that one elastic piece 6 fails to reset is avoided. Of course, in other embodiments, the number of the elastic members 6 may be adjusted according to actual needs, and is not limited herein.
In some embodiments, the sliding seat 2 may be installed with a positioning guide rod, the positioning guide rod may be disposed through the base 12, and the elastic member 6 may be sleeved on the positioning guide rod. This structure, can further play the directional guide effect to sliding seat 2 reciprocating motion through the positioning guide pole.
The embodiment of the application further provides a correction method, and by adopting the correction device provided by any one of the above embodiments, when the correction device is used, the first induction touch bar 4 and the second induction touch bar 5 are respectively and electrically connected with the master control system. The needle head descends and abuts against the top surface of the induction pressing rod 3, and the induction pressing rod 3 descends and drives the sliding seat 2 and the second induction contact rod 5 to descend. As the second sensing bar 5 continues to descend, the second sensing bar 5 gradually moves away from the first sensing bar 4. When the second induction touch rod 5 and the first induction touch rod 4 reach the signal change point, the master control system receives a disconnection signal, the needle stops descending, and the position of the needle at the moment is recorded. When the needle head rises, under the effect of the resilience force of the elastic piece 6, the elastic piece 6 abuts against and pushes the sliding seat 2 to slide upwards until the second induction contact rod 5 abuts against the first induction contact rod 4 again, at the moment, the main control system receives a closing signal, and the sliding seat 2 and the second induction contact rod 5 recover to an initial position state.
Now, the application of the calibration device in the dispensing process of the actual product is described in detail, at this time, the needle is installed on the dispensing system, and the position of the needle in the XYZ axis direction can be adjusted by the moving device, and the specific calibration steps are as follows:
s1, the mobile equipment moves the needle head to the position right above the induction pressure lever 3, and the coordinate position of the mobile equipment is obtained and stored;
s2, the mobile device drives the needle head to descend along the Z-axis direction, and the needle head presses the induction pressure lever 3 until the second induction touch lever 5 is separated from the first induction touch lever 4, namely the main control system stops when receiving a disconnection signal;
and S3, the mobile device drives the needle head to ascend along the Z-axis direction in a single step at a distance of 1 mu m, and the needle head detects whether the signal received by the main control system changes every time the needle head ascends by one step. When the signal of the master control system changes, the needle head stops rising, and the Z-axis coordinate of the needle head is recorded as Zn;
s4, moving the mobile equipment to a laser altimeter, wherein the laser altimeter measures the horizontal height of the top surface of the induction pressure rod 3 to be H, the height is used as a height detection reference height, and the Z-axis coordinate at the moment is recorded to be Zh;
s5, calculating the offset of the laser altimeter and the needle head in the Z-axis direction: Δ Z ═ Zn-Zh;
s6, before dispensing, the height of the product measured by the laser altimeter is Hp, the dispensing height to be compensated is Δ H — Hp, and the actual Z-axis coordinate of dispensing is: z is ZH + Δ Z + Δ H.
In one embodiment, as a specific implementation manner of the calibration method provided in the present application, in the process from step S1 to step S2, the elastic element 6 is in a compressed state. Specifically, in the initial position state, the elastic element 6 is in a compressed state and has a tendency to push the sliding seat 2 upwards, so as to ensure that the second sensing feeler lever 5 abuts against the first sensing feeler lever 4. Along with the needle head downwards pushing the induction pressure rod 3 and the sliding seat 2, the elastic piece 6 is stressed to continue to be compressed so as to ensure that the elastic piece pushes the sliding seat 2 under the action of resilience force, so that the second induction contact rod 5 is again abutted against the first induction contact rod 4.
The correction device and the correction method thereof provided by the embodiment of the application have at least the following beneficial effects:
1. the pressing distance of the induction compression bar 3 is short and is not more than 5 mu m, the top plane of the induction compression bar 3 can be used as the position of the needle head, and the top plane of the induction compression bar 3 can be directly used as a reference surface during calibration;
2. the position of the pressure point is basically coincident with the position of the signal change point, so that the requirement of height calibration of the non-contact sensor and the needle head is met, and the pressing distance does not need to be calculated;
3. the repetition precision of the signal change point is less than or equal to 3 mu m.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The above description is intended only to serve as an alternative embodiment of the present application, and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. Correction device, characterized in that it comprises:
a supporting seat;
the sliding seat is slidably arranged on the supporting seat;
one end of the induction pressure lever is connected with the sliding seat, and the other end of the induction pressure lever extends out of the supporting seat;
the first induction feeler lever is arranged on the supporting seat;
the second induction contact rod is arranged on the sliding seat and is opposite to the first induction contact rod;
and one end of the elastic piece is abutted to the sliding seat, and the other end of the elastic piece is abutted to the supporting seat, and is used for abutting and pushing the second induction contact rod towards the direction of the first induction contact rod.
2. The correction device of claim 1, wherein: the supporting seat comprises a base, a top seat arranged opposite to the base and a connecting seat for connecting the base and the top seat, the first induction contact rod is arranged on the top seat, the sliding seat is slidably arranged on the connecting seat, the sliding seat is positioned between the base and the top seat, and the induction pressure rod extends out of the top seat; one end of the elastic piece is abutted to the base, and the other end of the elastic piece is abutted to the sliding seat.
3. The correction device of claim 2, wherein: the supporting seat further comprises a sliding rail arranged on the connecting seat and a sliding block arranged on the sliding rail, and the sliding seat is arranged on the sliding block.
4. The correction device of claim 3, wherein: the connecting seat is provided with a mounting groove for the sliding rail to extend into.
5. The correction device of claim 2, wherein: the top seat is provided with a groove for the connection seat to extend into at the end far away from the base.
6. The correction device of any one of claims 1-5, wherein: the correcting device further comprises a limiting part for limiting the stroke of the sliding seat, one end of the limiting part is installed on the supporting seat, and the other end of the limiting part is abutted to the sliding seat.
7. The correction device of claim 6, wherein: the sliding seat is provided with a through hole for the limiting part to extend into.
8. The correction device according to any one of claims 1 to 5, wherein: the supporting seat is provided with a first positioning groove for one end of the elastic piece to stretch into, the sliding seat is provided with a second positioning groove for the other end of the elastic piece to stretch into, and the first positioning groove is arranged right opposite to the second positioning groove.
9. The correction method is characterized in that: the correction device according to any one of claims 1 to 8, said correction method comprising the steps of:
s1, moving the needle head to the position right above the sensing pressure rod by the mobile equipment, and acquiring and storing the coordinate position of the mobile equipment;
s2, the mobile equipment drives the needle head to descend along the Z-axis direction, the needle head presses the induction pressure lever until the second induction contact lever is separated from the first induction contact lever, and the main control system stops when receiving a disconnection signal;
s3, the mobile equipment drives the needle head to ascend along the Z-axis direction in a single step at a distance of 1 mu m until the needle head stops ascending when a signal received by the main control system changes, and the Z-axis coordinate of the needle head is recorded as Zn;
s4, moving the mobile equipment to a laser altimeter, wherein the laser altimeter measures the horizontal height of the top surface of the induction pressure lever to be H, and records the Z-axis coordinate of the mobile equipment to be Zh;
s5, calculating the offset of the laser altimeter and the needle head in the Z-axis direction: Δ Z ═ Zn-Zh;
s6, the height of the product measured by the laser altimeter is Hp, the dispensing height to be compensated is Δ H — Hp, and the Z-axis coordinate of the actual dispensing is: z is ZH + Δ Z + Δ H.
10. The correction method according to claim 9, characterized in that: in the process from step S1 to step S2, the elastic element is in a compressed state.
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| CN114632669B (en) | 2022-12-13 |
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