CN110561901A - Centering positioning platform - Google Patents
Centering positioning platform Download PDFInfo
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- CN110561901A CN110561901A CN201910954202.2A CN201910954202A CN110561901A CN 110561901 A CN110561901 A CN 110561901A CN 201910954202 A CN201910954202 A CN 201910954202A CN 110561901 A CN110561901 A CN 110561901A
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- 238000007639 printing Methods 0.000 claims abstract description 75
- 230000006698 induction Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000007649 pad printing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/001—Pad printing apparatus or machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/006—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention discloses a centering positioning platform which comprises a supporting seat and a plurality of positioning devices, wherein the supporting seat is used for providing Z-direction support for a printing piece, and at least one positioning device is an adjustable positioning device. The adjustable positioning device comprises an adjustable positioning driving device, a first fixed positioning part and an adjustable positioning part, wherein the first fixed positioning part is fixed at an output part of the adjustable positioning driving device, the adjustable positioning part is rotatably connected to the output part of the adjustable positioning driving device, a rotating center extends along the Z direction, and the first fixed positioning part and the adjustable positioning part are arranged on two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the adjustable positioning driving device and clamp and position the printing piece. In the corresponding preset positioning direction, the first fixed positioning part is used as a positioning reference, and the adjustable positioning part is used for adaptively adjusting the angle of the adjustable positioning part under the action of the printing piece so as to adapt to the direction of the first fixed positioning part, so that the printing piece is adaptively clamped for positioning, and the positioning reliability can be improved.
Description
Technical Field
The invention relates to the technical field of pad printing equipment, in particular to a centering positioning platform.
Background
For the pad printing machine, a special centering platform for positioning and clamping a printing piece such as arc glass is generally arranged on the pad printing machine. In actual operation, when the manipulator clamps glass and places the glass on the platform of location placed in the middle, the location structure cooperation on the platform of location placed in the middle is required to clamp glass in order to fix a position glass. However, since each positioning structure is fixed on the corresponding driving device, and there is often a certain error in the design process of the positioning structure, it is difficult to ensure the adhesion between each positioning structure and the glass. Thus, conventional centering platforms are difficult to securely grip to position the glass.
therefore, how to make the centering platform more reliably position the printing material is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a centering platform that can more reliably position a printing material.
In order to achieve the purpose, the invention provides the following technical scheme:
a centering positioning platform comprises a supporting seat and a plurality of positioning devices, wherein the supporting seat is used for providing Z-direction support for a printing piece, each positioning device is used for clamping and positioning the printing piece along a corresponding preset positioning direction perpendicular to the Z direction, and at least one positioning device is an adjustable positioning device;
The adjustable positioning device comprises an adjustable positioning driving device, a first fixed positioning part and an adjustable positioning part, wherein the first fixed positioning part is fixed at an output part of the adjustable positioning driving device, the adjustable positioning part is rotationally connected with the output part of the adjustable positioning driving device and a rotating center of the adjustable positioning driving device is extended along the Z direction, and the first fixed positioning part and the adjustable positioning part are arranged at two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the adjustable positioning driving device and position a printing piece.
Preferably, the first fixing and positioning part comprises a first fixing connecting rod fixed on the output part of the adjustable positioning driving device, and at least two first positioning columns are fixed on the first fixing connecting rod at intervals; the adjustable positioning part comprises an adjustable connecting rod which is rotatably connected with the output part of the adjustable positioning driving device, the rotating center extends along the Z direction, and at least two second positioning columns which are used for being matched with the first positioning columns to clamp and position the printing piece are fixed on the adjustable connecting rod at intervals.
Preferably, the output part of the adjustable positioning device is provided with a rotation limiting structure for limiting the swing angle range of the adjustable connecting rod.
Preferably, the positioning device includes a first positioning device with a preset positioning direction being an X direction and a second positioning device with a preset positioning direction being a Y direction, the second positioning device is the adjustable positioning device, and the X direction, the Y direction and the Z direction are perpendicular to each other.
preferably, the first positioning device is a fixed positioning device; the fixed positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the fixed positioning driving device and clamp and position the printing piece.
Preferably, the fixed position of at least one of the second fixing and positioning portions on the output portion of the fixing and positioning drive device is adjustable.
Preferably, the height of the adjustable positioning portion, the first fixed positioning portion and the second fixed positioning portion in the Z direction is adjustable.
Preferably, the positioning driving device of each positioning device comprises a rotary driver and a lead screw nut assembly connected to an output shaft of the rotary driver, and a lead screw of the lead screw nut assembly comprises two thread sections with opposite rotation directions; two positioning parts in the positioning device are respectively connected to the nuts of the two threaded sections, so that the two positioning parts synchronously move in opposite directions along corresponding preset positioning directions, and the printing piece is clamped and positioned or loosened.
Preferably, each positioning device further includes an inductor for inducing the positioning portion thereof, the positioning driving device and the inductor are electrically connected to a controller, and the controller is configured to control start and stop of the corresponding positioning driving device according to an induction result of the inductor.
preferably, one side of the supporting seat in the Z direction is provided with a middle anti-collision block, and the middle anti-collision block is arranged between the positioning parts.
The invention provides a middle positioning platform which comprises a supporting seat and a positioning device. In the positioning device, the adjustable positioning device comprises an adjustable positioning driving device, a first fixed positioning part and an adjustable positioning part, the first fixed positioning part is fixed at the output part of the adjustable positioning driving device, the adjustable positioning part is rotatably connected with the output part of the adjustable positioning driving device, the rotating center extends along the Z direction, the first fixed positioning part and the adjustable positioning part are arranged at two sides of the supporting seat so as to be close to each other along the corresponding preset positioning direction under the driving of the adjustable positioning driving device, and the printing part is clamped and positioned.
In the positioning process, the printing part is positioned on the supporting seat between the first fixed positioning part and the adjustable positioning part, the adjustable positioning driving device drives the first fixed positioning part and the adjustable positioning part to move close to each other along the corresponding preset positioning direction, and when the printing part is clamped, the adjustable positioning part can push the printing part to be tightly attached to the first fixed positioning part due to the rotatable arrangement of the adjustable positioning part, and meanwhile, the angle of the adjustable positioning part is adjusted, so that the adjustable positioning part is also tightly attached to the printing part.
It can be seen that, in the preset positioning direction corresponding to the adjustable positioning device, the first fixed positioning part is used as a positioning reference, and the adjustable positioning part adaptively adjusts the angle of the adjustable positioning part under the action of the printing part to adapt to the direction of the first fixed positioning part, so that the printing part can be adaptively clamped by the adjustable positioning part and the first fixed positioning part for positioning, the printing part is prevented from shaking in the preset positioning direction corresponding to the adjustable positioning part, the positioning reliability can be effectively improved, and the precise centering positioning of the printing part is favorably realized.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 an external view of a centering platform provided in the present invention;
FIG. 2 is an internal block diagram of a centering platform provided in accordance with the present invention;
Fig. 3 is a block diagram of an adjustable positioning device in a centering platform according to the present invention.
In fig. 1 to 3:
1-a printing-bearing piece;
21-a printing jig, 22-a jig base plate;
31-first supporting plate, 32-second supporting plate, 33-middle anti-collision block;
41-X direction supporting seat, 42-X direction guide rail, 43-X direction screw rod, 44-second adjustable block, 45-first adjustable block, 46-X direction motor, 47-fixed sleeve, 48-telescopic rod, 49-third positioning column, 410-X direction nut and 411-X direction inductor;
The device comprises a 51-Y-direction supporting seat, a 52-Y-direction synchronizing wheel, a 53-Y-direction screw rod, a 54-Y-direction synchronizing belt, a 55-Y-direction motor, a 56-rotation limiting structure, a 57-second positioning column, a 58-first positioning column, a 59-first Y-direction sensor, a 510-Y-direction guide rail, a 511-first fixed connecting rod, a 512-adjustable connecting rod, a 513-second Y-direction sensor and a 514-Y-direction nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
The core of the invention is to provide a centering platform which can more reliably position the printing piece.
In the description of the present invention, it should be noted that the terms "X direction", "Y direction", "Z direction", etc., indicate orientations or positional relationships only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In an embodiment of the present invention, please refer to fig. 1 to 3, which include a supporting base and a plurality of positioning devices. The support base is used to provide Z-direction support for the print substrate 1. The positioning device is used for clamping and positioning the printing element 1 along a corresponding preset positioning direction perpendicular to the Z direction. Each positioning device corresponds to a preset positioning direction perpendicular to the Z direction as the direction for positioning the printing piece 1, and after the printing piece 1 is clamped by the positioning devices, the printing piece 1 can be limited to move in the preset positioning direction corresponding to the positioning device.
Wherein at least one positioning device is an adjustable positioning device. As shown in fig. 3, the adjustable positioning device includes an adjustable positioning driving device, a first fixing and positioning portion and an adjustable positioning portion, wherein the first fixing and positioning portion is fixed at an output portion of the adjustable positioning driving device; the adjustable positioning part is rotatably connected to the output part of the adjustable positioning driving device, and the rotation center of the adjustable positioning part extends along the Z direction. The first fixed positioning part and the adjustable positioning part are arranged on two sides of the supporting seat, and the first fixed positioning part and the adjustable positioning part can be driven by the adjustable positioning driving device to be close to each other along the corresponding preset positioning direction so as to clamp and position the printing piece 1.
the X direction, the Y direction and the Z direction are perpendicular to each other, as shown in fig. 2, in actual use, the X direction and the Y direction are two linear directions on a horizontal plane, and the Z direction is a linear direction consistent with the up-down direction.
The number of the positioning devices can be set to be one, two or more than two according to actual needs. When only one positioning device is provided, the positioning device is an adjustable positioning device.
The centering platform can be applied to a pad printing machine or other devices or systems needing to position workpieces.
The printing part 1 is arranged on the supporting seat between the first fixed positioning part and the adjustable positioning part, in the adjustable positioning device, the adjustable positioning driving device drives the first fixed positioning part and the adjustable positioning part to move close to each other along the corresponding preset positioning direction (such as Y direction), and when the printing part 1 is clamped, due to the rotatable arrangement of the adjustable positioning part, the adjustable positioning part can push the printing part 1 to be tightly attached to the first fixed positioning part and adjust the angle of the adjustable positioning part, so that the adjustable positioning part is also tightly attached to the printing part 1.
It can be seen that, in the preset positioning direction corresponding to the adjustable positioning device, the first fixed positioning portion is used as a positioning reference, and the adjustable positioning portion adaptively adjusts the angle of the adjustable positioning portion under the action of the printing part 1 to adapt to the direction of the first fixed positioning portion, so that the printing part 1 can be adaptively clamped by the adjustable positioning portion and the first fixed positioning portion to be positioned, the printing part 1 is prevented from shaking in the direction, the positioning reliability can be effectively improved, and the precise centering positioning of the printing part 1 is favorably realized.
Further, the first fixing and positioning portion includes a first fixing link 511 fixed to the output portion of the adjustable positioning driving device, and at least two first positioning posts 58 are fixed on the first fixing link 511 at intervals. The adjustable positioning portion comprises an adjustable connecting rod 512 rotatably connected to the output portion of the adjustable positioning driving device, the rotation center of the adjustable connecting rod 512 extends along the Z direction, at least two second positioning columns 57 are fixed on the adjustable connecting rod 512 at intervals, and the second positioning columns 57 are used for being matched with the first positioning columns 58 to clamp and position the printing element 1.
If a plate-shaped structure is directly used for contact to position one surface of the printing element 1, when the machining error of the plate-shaped structure is large or the surface of the printing element 1 is curved, it is difficult to ensure the contact area between the plate-shaped structure and the printing element 1. In the embodiment, one surface of the printing part 1 is positioned by adopting a mode that at least two positioning columns are matched with each other, and each positioning column can be respectively in good contact with different positions on the side surface of the printing part 1, so that the positioning effect is ensured, meanwhile, the manufacturing material of the connecting part is favorably saved, and the processing difficulty is reduced.
The number of the first positioning posts 58 and the second positioning posts 57 can be two, three, five or other numbers as required. The number of the adjustable connecting rods 512 and the number of the connecting rods on the first fixed connecting rod 511 may be the same or different. In addition, on same connecting rod, the interval between the adjacent reference column can set up according to actual need.
Specifically, referring to fig. 3, two second positioning posts 57 are fixed in parallel on the adjustable connecting rod 512, and two first positioning posts 58 are fixed in parallel on the first fixed connecting rod 511. The two second positioning columns 57 arranged on the adjustable connecting rod 512 and the rotation center of the adjustable connecting rod 512 are preferably arranged at equal intervals. In the process of clamping the printing element 1, the two first positioning columns 58 and the two second positioning columns 57 can both contact the printing element 1 through the adaptive swing adjustment of the adjustable connecting rod 512.
Furthermore, the output part of the adjustable positioning device is provided with a rotation limiting structure 56 for limiting the swing angle range of the adjustable connecting rod 512. Through the arrangement of the rotation limiting structure 56, the swing of the adjustable connecting rod 512 can be limited within a reasonable range, and the adjustable connecting rod 512 can be adjusted to be attached to the printing part 1 more quickly without swinging greatly in the positioning process.
Specifically, as shown in fig. 3, the rotation limiting structure 56 includes limiting blocks respectively disposed at two sides of the adjustable connecting rod 512, and when the adjustable connecting rod 512 swings around its rotation center to abut against the limiting blocks, the adjustable connecting rod 512 cannot continue to rotate in the original direction. Or, the rotation limiting structure 56 may include an encoder connected to the adjustable connecting rod 512 and a cylinder fixed at the output portion of the adjustable positioning driving device, both the cylinder and the encoder are electrically connected to the controller, and the controller controls the piston rod of the cylinder to extend out to block the adjustable connecting rod 512 according to the detection of the encoder on the rotation angle of the adjustable connecting rod 512, so as to prevent the adjustable connecting rod 512 from continuing to rotate along the original direction.
Furthermore, the positioning device comprises a first positioning device with a preset positioning direction in the X direction and a second positioning device with a preset positioning direction in the Y direction, and the second positioning device is an adjustable positioning device. The two positioning devices with vertical preset positioning directions can ensure the comprehensive positioning of the printing piece 1 in the direction vertical to the Z direction.
Further, the first positioning device is a fixed positioning device. The fixed positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat so as to be close to each other along the corresponding preset positioning direction under the driving of the fixed positioning driving device and clamp and position the printing piece 1.
Referring to fig. 2, each of the second fixing and positioning portions is a third positioning post 49 fixed to the output portion of the fixing and positioning driving device, and the printing material 1 is clamped and positioned by two third positioning posts 49 in the X direction, and at this time, the two third positioning posts 49, two first positioning posts 58 spaced along the X direction, and two second positioning posts 57 spaced along the X direction can cooperate to clamp the printing material 1 therebetween. Of course, the number of the third positioning posts 49 in each second fixing and positioning portion may be two or another value.
For the rectangular printing substrate 1, taking the mobile phone glass as an example, on the support base, the length direction of the mobile phone glass is parallel to the X direction, and the width direction is parallel to the Y direction. The fixed positioning device can be used for clamping the side face corresponding to the short edge for positioning, and the side length is short, so that reliable positioning can be directly carried out through the second fixed positioning part which cannot rotate around the Z-axis, and the side face corresponding to the long edge of the mobile phone glass is clamped and positioned by further matching with the adjustable positioning device, so that the reliable positioning of the whole mobile phone glass can be ensured, and the processing is convenient.
Further, the fixed position of at least one second fixing and positioning portion on the output portion of the fixing and positioning driving device is adjustable, for example, adjustable along the Y direction or adjustable along the X direction, so that the relative position of two second fixing and positioning portions can be adjusted as required, and the applicability is improved. After the second fixing and positioning part is adjusted in position on the output part of the fixing and positioning driving device, the second fixing and positioning part is fixed relative to the output part of the fixing and positioning driving device.
Specifically, referring to fig. 2, the third positioning post 49 is fixed on the first adjustable block 45, the first adjustable block 45 is fixed on the second adjustable block 44, the second adjustable block 44 is fixed on the output portion of the fixed positioning driving device, and the fixed position of the third positioning post 49 is adjusted by the first adjustable block 45 being screwed to different positions on the second adjustable block 44 along the Y direction. Or, the second fixing and positioning part can be connected to the output part of the fixing and positioning driving device through an air cylinder, the position of the second fixing and positioning part is adjusted through the expansion and contraction of the air cylinder, and the air cylinder is controlled by the controller.
Furthermore, the height of the adjustable positioning part, the first fixed positioning part and the second fixed positioning part in the Z direction can be adjusted, so that the applicability of the centered positioning platform can be improved, and the position of the positioning part can be adjusted according to the position and the thickness adaptability of the printing piece 1 in the Z direction.
Specifically, each positioning column is a telescopic rod 48, so that the height of the corresponding positioning portion in the Z direction is adjusted. Taking the second fixing and positioning portion as an example, as shown in fig. 2, the third positioning column 49 includes a fixing sleeve 47 fixed on the output portion of the fixing and positioning driving device and an expansion rod 48 capable of extending or retracting in the Z direction relative to the fixing sleeve 47, and the expansion rod 48 and the fixing sleeve 47 may be screwed, snapped, or connected in other ways to be fixed together after the Z-direction relative position is adjusted. Alternatively, the height adjustment of the positioning portion in the Z direction may be performed by providing a Z-direction telescopic cylinder between the output portion of the positioning drive device and the corresponding positioning portion, and the cylinder is preferably controlled by a controller electrically connected thereto.
In addition, referring to fig. 1, the centering platform specifically includes a box body formed by a first supporting plate 31, a second supporting plate 32 disposed on one side of the first supporting plate 31Z in the upward direction, and a peripheral plate disposed between the first supporting plate 31 and the second supporting plate 32. Each positioning device is arranged in the box body and protected by the box body. The supporting seat comprises a jig bottom plate 22 arranged on the first supporting plate 31 and arranged outside the box body and a printing jig 21 arranged on the jig bottom plate 22, and the printing part 1 is arranged on the printing jig 21. The first supporting plate 31 is provided with a guide hole for providing a moving space for the corresponding positioning column in a Z-direction penetrating manner, and each positioning column can extend out of the box body through the corresponding guide hole to position the printing part 1. Because the positioning columns are Z-direction height-adjustable, when the positioning columns do not work, the positioning columns can retract into the box body, and the service life of the positioning columns is prolonged.
Furthermore, the positioning driving device of each positioning device comprises a rotary driver and a lead screw nut component connected to an output shaft of the rotary driver, and the lead screw nut component can convert the rotary motion into linear motion. The screw rod of the screw rod nut component comprises two screw thread sections with opposite rotating directions, and two positioning parts used for positioning the printing piece in the positioning device are respectively connected to the nuts of the two screw thread sections so as to enable the two positioning parts to synchronously and reversely move along the corresponding preset positioning directions, thereby clamping and positioning the printing piece 1 or loosening the printing piece 1. At this time, the nut is the output part of the positioning driving device.
the positioning driving device is a device in the positioning device for driving the positioning portion to move along a corresponding preset positioning direction. The positioning device can be an adjustable positioning device, at the moment, the positioning driving device is an adjustable positioning driving device, and the two positioning parts are respectively an adjustable positioning part and a first fixed positioning part; the positioning device can also be a fixed positioning device, at this time, the positioning driving device is a fixed positioning driving device, and the two positioning parts are respectively two second fixed positioning parts; of course, the positioning device may also be another positioning device in the platform that cooperates with two positioning portions to clamp and position the printing material 1.
Through the arrangement of the positioning driving device, the driving efficiency of the positioning part can be effectively improved, and the energy conservation and the space occupation of equipment are facilitated. Meanwhile, in one positioning device, after the movement distance of one positioning part is determined, the movement distance of the other positioning part is correspondingly determined due to synchronous movement, so that the movement distance of the positioning parts can be conveniently controlled.
Specifically, as shown in fig. 2 and 3, the fixed positioning driving device includes an X-direction motor 46 and an X-direction screw nut assembly, the X-direction screw nut assembly includes an X-direction screw 43, an X-direction rail 42 and an X-direction nut, the X-direction screw 43 and the X-direction rail 42 both extend along the X direction, the X-direction nut 410 is slidably connected to the X-direction rail 42 extending along the X direction to prevent the X-direction nut 410 from rotating on the X-direction screw 43, and the X-direction nut 410 is threadedly connected to the X-direction screw 43, so that the rotational motion of the X-direction motor 46 can be converted into the linear motion of the X-direction nut 410 through the transmission of the X-direction screw 43 and the limit of the X-direction rail 42. The output shaft of the X-direction motor 46 and the X-direction lead screw 43 can be in transmission connection through a synchronous belt assembly, and can also be directly and fixedly connected through a coupler or other modes. The two second fixing and positioning portions are fixed to the two X-direction nuts 410, respectively. Correspondingly, the adjustable positioning driving device includes a Y-direction motor 55 and a Y-direction screw nut assembly, and the specific configuration may refer to the description of the X-direction motor 46 and the X-direction screw nut assembly, which is not described again, wherein the two Y-direction nuts 514 are connected with the adjustable positioning portion and the first fixing and positioning portion, respectively.
Of course, in other embodiments, the positioning driving device may also include two linear drivers, the two linear drivers are respectively connected to the two positioning portions in the positioning device, and the linear drivers can drive the upper positioning portions to linearly reciprocate along the corresponding preset positioning directions, so as to respectively control the two positioning portions in the positioning device. Or, the positioning driving device may be a bidirectional cylinder, two positioning portions in the positioning device are respectively connected to two piston rods of the bidirectional cylinder, and the bidirectional cylinder is preferably electrically connected to the controller, and the controller controls the start and stop of the bidirectional cylinder.
further, each positioner still includes the inductor that is used for its location portion that is used for fixing a position the printing form, and promptly, the inductor can respond to whether have location portion to move to its response within range. The positioning driving device and the inductor are respectively and electrically connected to the controller, the positioning driving device is a device used for driving the positioning part to move along the corresponding preset positioning direction in the positioning device, and the controller is used for controlling the start and stop of the corresponding positioning driving device according to the sensing result of the inductor. The position of location portion can be confirmed through response location portion to the inductor to the displacement distance for controller control location portion facilitates, can guarantee that every printing-receiving member 1 all is positioned the same position department.
In a specific application, referring to fig. 3, for the adjustable positioning device for Y-direction positioning, on one side of the first fixed positioning portion in the X-direction, a first Y-direction sensor 59 and a second Y-direction sensor 513 are sequentially disposed along the Y-direction and near the adjustable positioning portion, and a Y-direction sensing piece matched with the Y-direction sensor is fixedly disposed on the first fixed positioning portion. In the process of moving close to the adjustable positioning portion, when the second Y-direction sensor 513 senses the Y-direction sensing piece, the controller controls the Y-direction motor 55 to stop rotating, and the adjustable positioning portion and the first fixed positioning portion stop moving synchronously and clamp the printing material 1; when the printing part 1 needs to be loosened, the controller controls the Y-direction motor 55 to be started reversely, the first fixing and positioning part moves away from the adjustable positioning part, and when the first Y-direction sensor 59 senses the Y-direction sensing piece, the controller controls the Y-direction motor 55 to stop rotating, and the adjustable positioning part and the first fixing and positioning part stop moving synchronously. Because the adjustable positioning part and the first fixed positioning part move synchronously, only the Y-direction sensor is correspondingly arranged on one side of the first fixed positioning part, and the adjustable positioning part does not need to be matched with the Y-direction sensor. For the fixed positioning device for positioning in the X direction, the setting manner of the X direction sensor 411 may refer to the above Y direction sensor, and is not described again.
Further, a middle anti-collision block 33 is provided on one side of the support base in the Z direction, and the middle anti-collision block 33 is provided between the positioning portions. Preferably, the middle impact-proof block 33 may be of an elastic structure to reduce impact damage. The intermediate anti-collision block 33 separates the positioning portions that move toward the printing material 1, and can effectively protect the positioning portions and reduce impact damage between the positioning portions. As shown in fig. 3, due to the provision of the intermediate anti-collision block 33, no collision directly occurs between the adjustable positioning portion, the first fixed positioning portion, and the two second fixed positioning portions.
When the precision aligning platform is applied to a pad printing machine, an XXY precision aligning platform is preferably arranged below the second supporting plate 325, the XXY precision aligning platform adjusts the overall position of the centering platform and the printing piece 1 thereon, the centering platform is used for realizing the precision repeated positioning of the printing piece 1, and the XXY precision aligning platform is used for realizing the precision aligning of the position of the printing piece 1 and the pattern of a pad printing head, so that the automatic precision aligning of the printing piece 1 and the pattern of pad printing is realized through the two components.
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.
The centering platform provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A centering positioning platform is characterized by comprising a supporting seat and a plurality of positioning devices, wherein the supporting seat is used for providing Z-direction support for a printing piece (1), each positioning device is used for clamping and positioning the printing piece (1) along a corresponding preset positioning direction perpendicular to the Z direction, and at least one positioning device is an adjustable positioning device;
The adjustable positioning device comprises an adjustable positioning driving device, a first fixed positioning part and an adjustable positioning part, wherein the first fixed positioning part is fixed at an output part of the adjustable positioning driving device, the adjustable positioning part is rotationally connected with the output part of the adjustable positioning driving device and a rotating center of the adjustable positioning driving device is extended along the Z direction, and the first fixed positioning part and the adjustable positioning part are arranged at two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the adjustable positioning driving device and clamp and position the printing piece (1).
2. The centering and positioning platform as recited in claim 1, wherein said first fixed positioning portion comprises a first fixed link (511) fixed to an output portion of said adjustable positioning driving device, at least two first positioning posts (58) are fixed to said first fixed link (511) at intervals; the adjustable positioning part comprises an adjustable connecting rod (512) which is rotatably connected to the output part of the adjustable positioning driving device, the rotating center of the adjustable connecting rod extends along the Z direction, and at least two second positioning columns (57) which are used for being matched with the first positioning columns (58) to clamp and position the printing part (1) are fixed on the adjustable connecting rod (512) at intervals.
3. The centering and positioning platform as recited in claim 2, wherein an output portion of said adjustable positioning device is provided with a rotation limiting structure (56) for limiting a swing angle range of said adjustable link (512).
4. The centering and positioning platform as recited in claim 1, wherein said positioning device comprises a first positioning device with a predetermined positioning direction being an X-direction and a second positioning device with a predetermined positioning direction being a Y-direction, said second positioning device being said adjustable positioning device, said X-direction, said Y-direction and said Z-direction being perpendicular to each other.
5. The centering platform of claim 4, wherein said first positioning device is a fixed positioning device; the fixed positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the fixed positioning driving device and clamp and position the printing piece (1).
6. The centering platform of claim 5, wherein the fixed position of at least one of said second fixed locating portions on the output of said fixed locating drive is adjustable.
7. The centering platform of claim 5, wherein the height of the adjustable positioning portion, the first fixed positioning portion, and the second fixed positioning portion in the Z direction is adjustable.
8. The centrally located platform according to any one of claims 1 to 7, wherein the locating drive means of each locating means comprises a rotary drive and a lead screw nut assembly connected to an output shaft of the rotary drive, the lead screw of the lead screw nut assembly comprising two threaded sections of opposite hand; two positioning parts in the positioning device are respectively connected to nuts of the two threaded sections, so that the two positioning parts synchronously move in opposite directions along corresponding preset positioning directions, and the printing piece (1) is clamped and positioned or loosened.
9. The centering platform according to claim 8, wherein each positioning device further comprises an inductor for inducing the positioning portion thereof, the positioning driving device and the inductor are electrically connected to a controller, respectively, and the controller is configured to control start and stop of the corresponding positioning driving device according to an induction result of the inductor.
10. The centering and locating platform as claimed in claim 8, wherein said support base is provided with a middle bumper block (33) at one side in said Z direction, and said middle bumper block (33) is provided between each of said locating portions.
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