Disclosure of Invention
In view of the problems in the background art, an object of the present invention is to provide a fully automatic needle position self-correcting system, which greatly reduces the position deviation between the needle positions before and after replacement, so as to improve the consistency of the needle dispensing positions before and after replacement, thereby improving the yield of products.
In order to achieve the purpose, the invention provides a full-automatic needle position self-correcting system which comprises a needle fixing mechanism, an image detection mechanism, a displacement measurement mechanism, a position adjusting mechanism and a control system. The needle head fixing mechanism is used for replaceably installing a needle head, and the needle head is located above the workpiece to be processed in the third direction of the workpiece to be processed and is used for dispensing the workpiece to be processed. The image detection mechanism is used for detecting and acquiring the dispensing position information of the needle head on the workpiece to be processed before and after replacement, and the displacement measurement mechanism is used for detecting and acquiring the height between the needle head before and after replacement and the dispensing position of the needle head on the workpiece to be processed. The control system is in communication connection with the image detection mechanism, the displacement measurement mechanism and the position adjustment mechanism and is used for calculating the position deviation between the positions of the needle heads before and after replacement and the position of the needle head before replacement. Under the control action of the control system, the position adjusting mechanism corrects the position of the replaced needle head to the position of the needle head before replacement.
In the full-automatic needle position self-correcting system according to some embodiments, the full-automatic needle position self-correcting system further includes a turntable mechanism for placing a workpiece to be processed and driving the workpiece to be processed to rotate, and the needle fixing mechanism and the image detecting mechanism are disposed at intervals in the circumferential direction of the turntable mechanism. Under the rotating action of the turntable mechanism, the workpiece to be processed below the needle head before and after replacement is rotated to the position of the image detection mechanism, so that the image detection mechanism detects the dispensing position of the needle head before and after replacement on the workpiece to be processed.
In a fully automatic needle position self-correction system according to some embodiments, the dial mechanism includes a working dial, a spindle, and a drive motor. The working disc is rotatably connected to the rotating shaft, and the rotating shaft is connected to the driving motor.
In a fully automatic needle position self-correction system according to some embodiments, the needle fixing mechanism includes a mount, a positioning barrel, and a fastening nut. The mounting seat is provided with a mounting hole and a fixing hole. The positioning cylinder is arranged in the mounting hole in a penetrating mode, and the fastening nut is matched with the fixing hole to fixedly install the positioning cylinder in the mounting seat. The needle is replaceably mounted to the positioning barrel.
In a fully automatic needle position self-correction system according to some embodiments, the displacement measuring mechanism includes a holder and a displacement sensor. The fixed seat is positioned on one side of the needle head fixing mechanism and fixedly provided with the displacement sensor. The displacement sensor is arranged facing the needle head so as to detect the height between the needle head before and after replacement and the dispensing position of the needle head on the workpiece to be processed.
In a fully automatic needle position self-correction system according to some embodiments, the position adjustment mechanism includes a first adjustment assembly. The first adjusting component is connected to the needle fixing mechanism and used for adjusting the position of the needle fixing mechanism in the third direction so as to modify the position of the replaced needle in the third direction into the position of the needle before replacement in the third direction.
In a fully automatic needle position self-correction system according to some embodiments, the first adjustment assembly includes a first slider, a first guide plate, and a first motor. The first sliding block is connected to the first guide plate in a sliding mode, and the first motor is fixedly connected to the first sliding block. The needle fixing mechanism is fixedly connected to the first sliding block.
In a fully automatic needle position self-correction system according to some embodiments, the position adjustment mechanism includes a second adjustment assembly. The second adjusting assembly is connected to the needle head fixing mechanism and used for adjusting the position of the needle head fixing mechanism in the first direction of the workpiece to be processed, so that the position of the replaced needle head in the first direction is corrected to the position of the needle head before replacement in the first direction.
In a fully automatic needle position self-correction system according to some embodiments, the second adjustment assembly includes a second slider, a second rail, and a second motor. The second sliding block is connected to the second guide rail in a sliding mode, and the second motor is fixedly connected to the second sliding block. The needle fixing mechanism is fixedly connected to the second sliding block.
In a fully automatic needle position self-correction system according to some embodiments, the position adjustment mechanism includes a third adjustment assembly. The third adjusting component is connected to the needle head fixing mechanism and used for adjusting the height of the needle head fixing mechanism in the second direction of the workpiece to be processed, so that the position of the replaced needle head in the second direction is corrected to the position of the needle head before replacement in the second direction.
The invention has the following beneficial effects:
the full-automatic needle position self-correction system can automatically correct the position of the replaced needle, so that the deviation between the positions of the needle before and after replacement is greatly reduced, the consistency of the dispensing positions of the needle before and after replacement is improved, and the qualification rate of the processed workpiece is improved. In addition, this kind of correction mode of full-automatic syringe needle position self-correction system of this application is simple swift, has greatly reduced the shut down time of trading the needle to help improving production efficiency.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different elements and not for describing a particular sequential or chronological order. The appearances of "a plurality" in this application are intended to mean more than two (including two).
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
A fully automatic needle position self-correction system according to the present application is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the fully automatic needle position self-correcting system of the present application includes a needle fixing mechanism 1, an image detecting mechanism 2, a displacement measuring mechanism 3, a position adjusting mechanism 4, and a control system 5.
The needle holding mechanism 1 is used to replaceably mount a needle 6. Wherein, the needle 6 is fixedly arranged on the needle fixing mechanism 1 or is detached from the needle fixing mechanism 1 and is replaced by another needle 6 through a manual mode. The needle 6 is located above the workpiece B to be processed (e.g., a quartz crystal) in the third direction Z and is used for dispensing (i.e., dispensing) the workpiece B to be processed through the needle 6.
The image detection mechanism 2 is used for detecting and acquiring the dispensing position information of the needle 6 on the workpiece B to be processed before and after replacement. The displacement measuring mechanism 3 is used for detecting and acquiring the height between the needle head 6 before and after replacement and the dispensing position of the needle head on the workpiece B to be processed. The control system 5 is connected with the image detection mechanism 2, the displacement measurement mechanism 3 and the position adjustment mechanism 4 in a communication mode and is used for calculating the deviation between the position of the needle 6 after replacement and the position of the needle 6 before replacement. Under the control of the control system 5, the position adjustment mechanism 4 corrects the position of the needle 6 after replacement to the position of the needle 6 before replacement.
The dispensing position refers to a position of a projection point on the workpiece B to be processed when the needle 6 does not dispense the glue before and after the replacement, or a position of a dispensing point on the workpiece B to be processed after dispensing the glue.
In the full-automatic needle position self-correcting system, when the needle 6 needs to be replaced, the image detection mechanism 2 detects and acquires the dispensing position information of the needle 6 before replacement on the workpiece B to be processed, and the displacement measurement mechanism 3 detects and acquires the height between the needle 6 before replacement and the dispensing position of the needle 6 on the workpiece B to be processed, so that the spatial position information of the needle 6 before replacement is acquired; then, the needle 6 is manually replaced, the image detection mechanism 2 detects and acquires the information of the dispensing position of the replaced needle 6 on the workpiece B to be processed, and the displacement measurement mechanism 3 detects and acquires the height between the replaced needle 6 and the dispensing position of the replaced needle 6 on the workpiece B to be processed, so that the spatial position information of the replaced needle 6 is obtained. Based on the information interaction between the control system 5 and the image detection mechanism 2 and the displacement measurement mechanism 3, the control system 5 receives the spatial position information of the needle 6 before replacement and the spatial position information of the needle 6 after replacement, and calculates the position deviation between the positions of the needle 6 before and after replacement; meanwhile, based on the information interaction between the control system 5 and the position adjusting mechanism 4, the control system 5 controls the position adjusting mechanism 4 to move so as to correct the position of the needle 6 after replacement to the position of the needle 6 before replacement.
Because after the syringe needle 6 is changed manually, the full-automatic syringe needle position self-correction system of this application can carry out the automatic correction to the position of the syringe needle 6 after changing, has greatly reduced the deviation between the syringe needle 6 position before and after the change from this to improve the uniformity of the some glue positions of syringe needle 6 before and after the change, improved the qualification rate after waiting to process work piece B processing from this. In addition, this kind of correction mode of full-automatic syringe needle position self-correction system of this application is simple swift, has greatly reduced the shut down time of trading the needle to help improving production efficiency.
The third direction Z of the workpiece B to be processed is the thickness direction of the workpiece B to be processed, and the first direction X of the workpiece B to be processed, which will be described later, is the length direction or width direction of the workpiece B to be processed, and correspondingly the second direction Y of the workpiece B to be processed is the width direction or length direction of the workpiece B to be processed.
In order to facilitate the calculation of the deviation between the positions of the needle 6 before and after replacement, a three-dimensional coordinate system O-xyz is established by taking the third direction Z of the workpiece B to be processed as the Z axis, the second direction Y as the Y axis and the first direction X as the X axis. The information of the dispensing positions of the needle 6 on the workpiece B to be processed before and after replacement is the corresponding coordinates of the needle 6 on the x axis and the y axis before and after replacement, and the height between the needle 6 before and after replacement and the dispensing position of the needle 6 on the workpiece B to be processed is the coordinate of the needle 6 on the z axis before and after replacement.
In some embodiments, referring to fig. 1 and 2, the needle fixing mechanism 1 comprises a mounting base 11, a positioning barrel 12 and a fastening nut 13. The mount 11 is provided with a mounting hole and a fixing hole. The positioning cylinder 12 is arranged in the mounting hole in a penetrating manner, and the fastening nut 13 is matched with the fixing hole so as to fixedly mount the positioning cylinder 12 in the mounting seat 11. The needle 6 is replaceably mounted to the positioning barrel 12. Specifically, the needle 6 may be mounted to the positioning barrel 12 by a threaded connection.
In some embodiments, with further reference to fig. 2, the mounting base 11 is also provided with a limiting hole. The needle 6 is fixedly connected with one end of the positioning barrel 12 and is inserted into and limited in the limiting hole, so that the needle 6 and the one end of the positioning barrel 12 are fixed; and the other end of the positioning cylinder 12 is fixed in the mounting hole by the fastening nut 13, so that the other end of the positioning cylinder 12 is fixed. Because both ends of the positioning cylinder 12 and the needle 6 are fixed, the stability of the needle 6 during the dispensing operation is ensured, and the qualification rate of the workpiece B to be processed after processing is improved.
In some embodiments, the image detection mechanism 2 includes an industrial camera that detects and acquires information on the dispensing position of the needle 6 on the workpiece B to be processed before and after replacement by image processing.
In some embodiments, referring to fig. 1 to 3, the displacement measuring mechanism 3 includes a fixed seat 31 and a displacement sensor 32. The fixed seat 31 is located on one side of the needle fixing mechanism 1 and fixedly mounts the displacement sensor 32. The displacement sensor 32 is disposed facing the needle 6 to detect and acquire the height between the needle 6 before and after replacement and its dispensing position on the workpiece B to be processed.
In some embodiments, referring to fig. 2 and 3, the position adjustment mechanism 4 includes a first adjustment assembly 41. The first adjustment assembly 41 is connected to the needle holding mechanism 1 and is used to adjust the position of the needle holding mechanism 1 in the third direction Z to correct the position of the needle 6 after replacement in the third direction Z to the position of the needle 6 before replacement in the third direction Z.
The position of the replaced needle head 6 in the third direction Z can be timely corrected by the first adjusting assembly 41, so that the position deviation of the needle head 6 in the third direction Z before and after replacement is greatly reduced, the consistency of the dispensing positions of the needle head 6 before and after replacement is improved, and the qualified rate of the workpiece B to be processed after processing is improved.
In some embodiments, with further reference to fig. 2, the first adjustment assembly 41 includes a first slider 411, a first guide plate 412, and a first motor 413. The first sliding block 411 is slidably connected to the first guiding plate 412, the first motor 413 is fixedly connected to the first sliding block 411, and the needle fixing mechanism 1 is fixedly connected to the first sliding block 411. After the needle 6 is replaced, based on the position deviation of the needle 6 in the third direction Z before and after replacement calculated by the control system 5, the first motor 413 drives the first slider 411 and the needle fixing mechanism 1 to move, so that the replaced needle 6 moves in the third direction Z to the position of the needle 6 in the third direction Z before replacement. In some embodiments, with further reference to FIG. 2, first adjustment assembly 41 also includes a first mounting plate 414, first mounting plate 414 being coupled to second adjustment assembly 42 described below. Under the action of the second adjusting assembly 42, the first adjusting assembly 41 and the needle fixing mechanism 1 can move together in the first direction X of the workpiece B to be processed.
In some embodiments, referring to fig. 2 and 3, the position adjustment mechanism 4 further includes a second adjustment assembly 42. The second adjustment assembly 42 is connected to the needle fixing mechanism 1 through the first adjustment assembly 41 and is used for adjusting the position of the needle fixing mechanism 1 in the first direction X to correct the position of the replaced needle 6 in the first direction X to the position of the needle 6 before replacement in the first direction X.
The position of the replaced needle head 6 in the first direction X can be corrected by the second adjusting assembly 42 in time, so that the position deviation of the needle head 6 in the first direction X before and after replacement is greatly reduced, the consistency of the dispensing positions of the needle head 6 before and after replacement is improved, and the qualified rate of the workpiece B to be processed after processing is improved.
In some embodiments, with further reference to fig. 3, the second adjustment assembly 42 includes a second slide 421, a second guide rail 422, and a second motor 423. The second sliding block 421 is slidably connected to the second guiding rail 422, the second motor 423 is fixedly connected to the second sliding block 421, and the needle fixing mechanism 1 is fixedly connected to the second sliding block 421 through the first adjusting component 41. After the needle 6 is replaced, based on the position deviation of the needle 6 before and after replacement calculated by the control system 5 in the first direction X, the second motor 423 drives the second slider 421 and the needle fixing mechanism 1 to move, so that the replaced needle 6 moves in the first direction X to the position of the needle 6 before replacement in the first direction X.
In some embodiments, with further reference to fig. 3, the second adjustment assembly 42 further includes a second mounting plate 424, the second mounting plate 424 being coupled to the third adjustment assembly 43. Under the action of the third adjusting assembly 43, the second adjusting assembly 42 and the needle fixing mechanism 1 can move together in the second direction Y of the workpiece B to be processed.
In some embodiments, referring to fig. 2 and 3, the position adjustment mechanism 4 further includes a third adjustment assembly 43. The third adjusting assembly 43 is connected to the needle head fixing mechanism 1 through the second adjusting assembly 42 and the first adjusting assembly 41, and is used for adjusting the height of the needle head fixing mechanism 1 in the second direction Y of the workpiece B to be processed, so as to correct the position of the needle head 6 after replacement in the second direction Y to the position of the needle head 6 before replacement in the second direction Y.
The position of the replaced needle head 6 in the second direction Y can be corrected in time by the third adjusting assembly 43, so that the position deviation of the needle head 6 in the second direction Y before and after replacement is greatly reduced, the consistency of the dispensing positions of the needle head 6 before and after replacement is improved, and the qualified rate of the workpiece B to be processed after processing is improved.
In some embodiments, with further reference to fig. 3, the third adjustment assembly 43 includes a third slider 431, a third guide plate 432, and a third motor 433. The third sliding block 431 is slidably connected to the third guiding plate 432, the third motor 433 is fixedly connected to the third sliding block 431, and the needle fixing mechanism 1 is fixedly connected to the third sliding block 431 through the second adjusting assembly 42 and the first adjusting assembly 41. After the needle 6 is replaced, based on the position deviation of the needle 6 in the second direction Y before and after replacement calculated by the control system 5, the third motor 433 drives the third slider 431 and the needle fixing mechanism 1 to move, so that the replaced needle 6 moves in the second direction Y to the position of the needle 6 in the second direction Y before replacement.
Based on the synergistic effect between third adjusting part 43, second adjusting part 42 and the first adjusting part 41, the full-automatic syringe needle position self-correction system of this application can all carry out the automatic correction to syringe needle 6 position in three directions after changing, has greatly reduced the deviation between the syringe needle 6 position before and after changing from this to the uniformity of the some glue positions of syringe needle 6 before and after having improved and to treat the qualification rate after the processing of processing work piece B from this.
In some embodiments, referring to fig. 1, the fully automatic needle position self-correction system of the present application further includes a turntable mechanism 7, where the turntable mechanism 7 is configured to place and drive the workpiece B to be processed to rotate. The number of the workpieces B to be machined can be plural, and the plural workpieces B to be machined are arranged on the turntable mechanism 7 at intervals along the circumferential direction of the turntable mechanism 7.
When the dispensing operation is performed through the needle 6, in order to avoid interference between the image detection mechanism 2 and the needle 6, the needle fixing mechanism 1 and the image detection mechanism 2 are arranged at intervals in the circumferential direction of the turntable mechanism 7. After the dispensing operation of the needle 6 is completed, the workpiece B to be processed below the needle 6 is rotated to the position of the image detection mechanism 2 under the rotation of the turntable mechanism 7, so that the image detection mechanism 2 detects the dispensing position on the workpiece B to be processed. Therefore, the workpiece B to be processed below the needle 6 before and after replacement can be respectively rotated to the positions of the image detection mechanism 2 by the turntable mechanism 7, so that the image detection mechanism 2 detects the dispensing positions of the needle 6 before and after replacement on the workpiece B to be processed.
In some embodiments, with further reference to fig. 1, the turntable mechanism 7 includes a work plate 71, a rotating shaft 72, and a drive motor 73. The operating plate 71 is rotatably connected to a rotating shaft 72, and the rotating shaft 72 is connected to a driving motor 73.