A non-offset flipping device and method for ceramic pixel unit

Abstract

The present invention provides a non-offset flipping device for a ceramic pixel unit, comprising: a first jig and a second jig, wherein the first jig and / or the second jig carries at least one article; a jig conveying mechanism, wherein the jig conveying mechanism is used to convey the first jig to an article flipping area; a lifting mechanism, wherein the flipping clamping mechanism and the first jig and the second jig clamped therein move up and down; and a flipping clamping mechanism, wherein the flipping clamping mechanism is used to fix the article between the first jig and the second jig in the jig conversion area, and drive the first jig and the second jig to flip from a first position to a second position. The present invention realizes the conversion of a whole tray of articles between different jigs, improves the rationality of the product structure, the reliability and simplicity of use, and effectively improves the operating efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of electromechanical equipment, and in particular relates to a non-offset flipping device and method for a ceramic pixel unit. Background Art

[0002] In the automatic assembly line, it is necessary to solve the flipping of a whole tray of ceramic pixel items and ensure that the position of each item is accurately matched with the fixture without offset after the flipping. The fixture structure does not change before and after the flipping of the whole tray, ensuring the unified structure of the assembly line fixture and not affecting the operation of the previous and next processes.

[0003] The current assembly line flipping mechanism on the market is not suitable for flipping a whole tray of items carried by the fixture, but is only suitable for flipping a single item. It is impossible to achieve precise positioning without deviation after flipping a whole tray. Summary of the invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a non-offset flipping device and method for ceramic pixel units to improve the operational convenience and accuracy of flipping a whole tray of multiple items.

[0005] In order to achieve the above-mentioned object, the present invention provides, on one hand, a non-offset flipping device for a ceramic pixel unit, comprising:

[0006] A first jig and a second jig, wherein at least one object is carried on the first jig and / or the second jig;

[0007] A jig conveying mechanism, the jig conveying mechanism is used to move the first jig and / or the second jig into / out of the article turning area;

[0008] A lifting mechanism, wherein the lifting mechanism is connected to the jig conveying mechanism and the flip clamping mechanism, and is used to drive the flip clamping mechanism and drive the first jig and the second jig clamped by the flip clamping mechanism to move up and down in the article flipping area;

[0009] A flipping and clamping mechanism, wherein the flipping and clamping mechanism is located in the article flipping area, and is used to fix the article between the first jig and the second jig in the article flipping area, and drive the first jig and the second jig to flip from a first position to a second position, so as to transfer the article from being carried by the first jig to being carried by the second jig or from being carried by the second jig to being carried by the first jig.

[0010] Furthermore, the flip clamping mechanism comprises a first flip clamping mechanism and a second flip clamping mechanism which are arranged opposite to each other, wherein the first flip clamping mechanism and the second flip clamping mechanism are respectively arranged to clamp two ends of the first fixture and the second fixture, and the flip clamping mechanism comprises:

[0011] A driving structure connected to the lifting mechanism;

[0012] A clamping structure, wherein a first fixture and a second fixture are installed on the clamping structure, and the clamping structure is rotatably connected to the driving structure. After the clamping structure locks the first fixture and the second fixture, the driving structure drives the clamping structure to drive the first fixture and the second fixture to rotate relative to the driving structure.

[0013] Furthermore, the driving structure comprises:

[0014] A rotary cylinder, wherein the rotary cylinder is arranged on the lifting mechanism;

[0015] a drive shaft comprising a first end and a second end opposite the first end;

[0016] The first end of the driving shaft is connected to the rotating cylinder, and the second end of the driving shaft is connected to the clamping structure to drive the clamping structure to rotate.

[0017] Furthermore, the drive shaft includes a first drive shaft and a second drive shaft.

[0018] The first drive shaft and the second drive shaft are coaxially arranged and fixedly connected via a coupling.

[0019] Furthermore, the clamping structure comprises:

[0020] A flip block, wherein the flip block is arranged at the second end of the driving shaft so that the flip block rotates under the driving of the driving shaft;

[0021] A first positioning pin and a second positioning pin, wherein the first positioning pin and the second positioning pin are both movably disposed on the flip block and respectively cooperate with a first positioning hole on the first fixture and a second positioning hole on the second fixture in the article flipping area;

[0022] A blocking block, the blocking block is connected to the lifting mechanism and has a blocking block through hole, the driving shaft is installed in the blocking block through hole through a bearing; the blocking block includes a stop portion and an adjusting portion, when adjusted to the stop portion, the first positioning pin and the second positioning pin cannot withdraw from the first positioning hole or the second positioning hole to lock the position of the first fixture and the second fixture; when adjusted to the adjusting portion, the first positioning pin and the second positioning pin can withdraw from the first positioning hole or the second positioning hole to unlock the position of the first fixture and the second fixture.

[0023] Furthermore, the adjustment unit further comprises:

[0024] A positioning pin driving unit, which can cooperate with the tail of the first positioning pin or the second positioning pin to actuate the first positioning pin or the second positioning pin to reciprocate relative to the flip block in a direction parallel to the axis of the rotating shaft, so as to enter or exit the first positioning hole or the second positioning hole at the first position or the second position.

[0025] Further, the adjusting portion includes a through hole, and at least a portion of the positioning pin driving portion passes through the through hole to drive the first positioning pin or the second positioning pin to enter or exit the first positioning hole or the second positioning hole.

[0026] Furthermore, the positioning pin driving unit further comprises:

[0027] A push cylinder, the push cylinder comprising a cylinder body and a piston rod, the piston rod comprising a first end located in the cylinder body and a second end opposite to the first end;

[0028] A positioning pin clamping portion, the positioning pin clamping portion is connected to the second end of the piston rod and is located in the through hole so that the positioning pin clamping portion can reciprocate in the through hole;

[0029] The positioning pin clamping portion has a buckle that can be clamped with the tail of the first positioning pin or the second positioning pin.

[0030] Furthermore, it also includes a control module, and the control module is used to control the non-offset flipping device to transfer the article from the first jig to the second jig or from the second jig to the first jig.

[0031] Furthermore, the control module includes a positioning sensor and a PLC controller.

[0032] The positioning sensor detects positioning signals of the first fixture and the second fixture, and sends the positioning signals to the PLC controller;

[0033] The PLC controller is electrically connected to the lifting mechanism, the fixture conveying mechanism and the flip clamping mechanism, and controls according to the positioning signal:

[0034] The up and down movement of the lifting mechanism;

[0035] The jig conveying mechanism moves the first jig and / or the second jig in / out;

[0036] The flip clamping mechanism locks, flips, and unlocks the first fixture and / or the second fixture.

[0037] Furthermore, the article comprises a ceramic pixel unit.

[0038] Another aspect of the present invention provides a method for non-offset flipping of a ceramic pixel unit, the method comprising the following steps:

[0039] a. moving a first fixture carrying at least one article into the article turning area through a fixture conveying mechanism;

[0040] b. After the first fixture enters the article turning area and stops, the lifting mechanism drives the turning clamping mechanism with the second fixture to move downward until the second fixture and the first fixture are covered;

[0041] c. Locking the positions of the first fixture and the second fixture so that the object is fixed between the first fixture and the second fixture;

[0042] d. Move the locked first fixture and the second fixture upward, so that the first fixture and the second fixture are flipped from the first position to the second position, so that the article is transferred from the first fixture to the second fixture;

[0043] e. Move the first fixture and the second fixture downward to unlock the positions of the first fixture and the second fixture;

[0044] f. Move the second fixture carrying the article out of the article turning area through the fixture conveying mechanism, and repeat step a after the lifting mechanism returns to its original position.

[0045] Compared with the prior art, the present invention provides a non-offset flipping device and method for ceramic pixel units, which adopts a flipping clamping mechanism to solve the problem of switching a whole tray of items between different jigs. The jig is driven up and down, the jig is locked by the flipping clamping mechanism, and the action is completed by flipping. Then the jig is released to complete the clamping and flipping functions, thereby realizing the precise and non-offset switching of a whole tray of items between different jigs. The rationality of the product structure, the reliability and simplicity of use, and the operating efficiency are effectively improved. The device is easy to process, has low cost, and high precision, and is conducive to mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the non-offset flipping device of the present invention.

[0047] Figure 2 It is a three-dimensional exploded schematic diagram of an embodiment of the non-offset flipping device of the present invention;

[0048] Figure 3 It is a schematic diagram of the combination of the flipping clamping structure and the lifting structure in one embodiment of the non-offset flipping device of the present invention;

[0049] Figure 4 It is a three-dimensional schematic diagram of the flipping and clamping structure in one embodiment of the non-offset flipping device of the present invention;

[0050] Figure 5 It is a side view of the flipping and clamping structure in one embodiment of the non-offset flipping device of the present invention;

[0051] Figure 6 A top view of a flipping and clamping structure in one embodiment of a non-offset flipping device of the present invention;

[0052] Figure 7 for Figure 5 The enlarged schematic diagram at the middle circle shows the specific structure of the flip clamping structure;

[0053] Figure 8 It is a working principle diagram of the flip clamping structure in one embodiment of the non-offset flipping device of the present invention, and its state is before clamping;

[0054] Fig. 9 It is a working principle diagram of the flip clamping structure in one embodiment of the non-offset flipping device of the present invention, and its state is after clamping;

[0055] Fig.10 It is a working principle diagram of the flipping clamping structure in one embodiment of the non-offset flipping device of the present invention, and its state is after flipping;

[0056] Fig.11 This is a working principle diagram of the flip clamping structure in one embodiment of the non-offset flipping device of the present invention, and its state is after the clamping is released. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0058] In one embodiment of the present invention, Figure 1-11 As shown, a non-offset flipping device for a ceramic pixel unit is provided, which is used to transfer one or more objects from a first fixture a to a second fixture b, including:

[0059] A first fixture a and a second fixture b, wherein at least one object is carried on the first fixture a and / or the second fixture b; the first fixture a and the second fixture b are tray-shaped structures or other structures capable of carrying objects;

[0060] A jig conveying mechanism 1, wherein the jig conveying mechanism 1 is used to move the first jig a and / or the second jig into / out of the article turning zone z;

[0061] A lifting mechanism 3, the lifting mechanism 3 is connected to the jig conveying mechanism 1 and the flip clamping mechanism 2, and is used to drive the flip clamping mechanism 2 and drive the first jig a and the second jig b clamped by the flip clamping mechanism 2 to move up and down in the article flipping zone z;

[0062] The flipping and clamping mechanism 2 is located in the article flipping zone z, and is used to fix the article between the first jig a and the second jig b in the article flipping zone z, and drive the first jig a and the second jig b to flip from a first position to a second position, so as to transfer the article from the first jig to the second jig or from the second jig to the first jig.

[0063] Among them, the flipping and clamping mechanism 2 fixes the second jig b at the first position, and fixes the first jig a from the jig conveying mechanism 1 to the second jig b; in the second position, the flipping and clamping mechanism 2 fixes the first jig a, and releases the second jig b to the jig conveying mechanism 1.

[0064] The non-offset flipping device for ceramic pixel units of the present invention has the ability to flip a whole tray of articles, and has a good effect in flipping a whole tray of ceramic pixels. By operating the first fixture and the second fixture at the first position and the second position respectively, the conversion of the first fixture and the second fixture is guaranteed, so that the whole tray of articles can be accurately transferred from the first fixture to the second fixture without offset under the action of gravity. It is convenient to manage the fixtures, suitable for assembly line operations, can be used for docking with the previous and next processes, and can also be used alone. It is stable and reliable and has a wide range of uses.

[0065] In one embodiment, in order to realize the flipping clamping mechanism 2 so that the first jig a and the second jig b are flipped together when clamped, the stability of the clamping of the first jig a and the second jig b is ensured to achieve better locking, unlocking and flipping effects, the flipping clamping mechanism of the present invention includes two relatively arranged first flipping clamping mechanisms and second flipping clamping mechanisms, and the first flipping clamping mechanism and the second flipping clamping mechanism are respectively clamped at the two ends of the first jig and the second jig.

[0066] Specifically, the first flip clamping mechanism and the second flip clamping mechanism have the same structure, such as Figure 1-2 As shown, it includes:

[0067] Referring to the driving structure 21 and the clamping structure 22, the driving structure 21 is connected to the lifting mechanism 3; the first fixture and the second fixture are installed on the clamping structure, and the clamping structure 22 is rotatably connected to the driving structure 21. After the clamping structure 22 locks the first fixture a and the second fixture b, the driving structure 21 drives the clamping structure 22 to drive the first fixture a and the second fixture b to rotate relative to the driving structure 21.

[0068] The driving structure 21 is described below. In one embodiment, see Figure 3-6, the driving structure 21 includes:

[0069] A rotating cylinder 211, wherein the rotating cylinder 211 is disposed on the lifting mechanism 3;

[0070] a drive shaft comprising a first end and a second end opposite the first end;

[0071] The first end of the driving shaft is connected to the rotating cylinder 211 , and the second end of the driving shaft is connected to the clamping structure 22 , so as to drive the clamping structure 22 to rotate.

[0072] In one embodiment, Figure 7-11 As shown, the drive shaft includes a first drive shaft 21a and a second drive shaft 21b. The first drive shaft 21a and the second drive shaft 21b are coaxially arranged and fixedly connected by a coupling.

[0073] The clamping structure 22 of the present invention is described in detail below. In one embodiment, the clamping structure 22 includes:

[0074] A flip block 4, wherein the flip block 4 is fixedly connected to the second end of the driving shaft so that the flip block can rotate under the driving of the driving shaft;

[0075] A first positioning pin 5 and a second positioning pin 6, wherein the first positioning pin 5 and the second positioning pin 6 are both movably arranged on the flip block 4 and can respectively cooperate with the first positioning hole of the first fixture a and the second positioning hole of the second fixture b in the article flipping zone z;

[0076] The blocking block 7 is connected to the lifting mechanism and has a blocking block through hole 8, and the driving shaft is installed in the blocking block through hole 8 through a bearing.

[0077] In one embodiment, the blocking block 7 includes a stop portion 71 and an adjusting portion 72, and in the stop portion 71, the first positioning pin 5 or the second positioning pin 6 cannot withdraw from the first positioning hole or the second positioning hole, that is, when the first positioning pin 5 or the second positioning pin 6 is flipped to the stop portion 71 by the flip block 4, the tail of the first positioning pin 5 or the second positioning pin 6 is stopped by the stop portion 71, and the positioning pin at this position cannot withdraw from the first positioning hole or the second positioning hole, thereby locking the first fixture a and the second fixture b at this position, and the first fixture a or the second fixture b is fixed to the flip clamping mechanism through the positioning pin.

[0078] In the adjusting portion 72, the first positioning pin 5 and the second positioning pin 6 can withdraw from the first positioning hole or the second positioning hole, that is, when the first positioning pin 5 or the second positioning pin 6 is flipped to the adjusting portion 72 by the flip block 4, the first positioning pin 5 or the second positioning pin 6 can be adjusted by the adjusting portion 72, and when it is necessary to release the first jig a or the second jig b, the positioning pin at this position can be adjusted by the adjusting portion 72 to withdraw from the first positioning hole or the second positioning hole, thereby unlocking the first jig a and the second jig b at this position, and the first jig a or the second jig b can be released and released onto the jig conveying mechanism 1.

[0079] In one embodiment, in order to achieve flipping, the stop portion 71 and the adjusting portion 72 are arranged opposite to each other on the same side of the blocking block 7, and the stop portion 71 is located above the adjusting portion 72. In this way, when the jig needs to be released, the positioning pin on the lower adjusting portion 72 is adjusted, and the jig flipped to the lower side can be released.

[0080] In one embodiment, the adjusting unit 72 further comprises:

[0081] The positioning pin driving unit 721 can cooperate with the tail of the first positioning pin 5 or the second positioning pin 6 to actuate the first positioning pin 5 or the second positioning pin 6 to reciprocate relative to the flip block 4 in a direction parallel to the axis of the rotating shaft, so as to enter or exit the first positioning hole or the second positioning hole at the first position or the second position.

[0082] In order to realize the reciprocating movement of the positioning pin, in one embodiment, the adjusting portion 72 includes a through hole 722, and at least a portion of the positioning pin driving portion 721 passes through the through hole 722 to drive the first positioning pin 5 or the second positioning pin 6 to enter or exit the first positioning hole or the second positioning hole.

[0083] In one embodiment, the first positioning pin and the second positioning pin both include a pulling pin L1, a pulling pin positioning plate L2 and a fixture positioning pin connected in sequence, and the pulling pin positioning plate L2 is used to limit the pulling pin L1, and limits the pulling pin L1 on the inner side of the flip block 4.

[0084] Next, the positioning pin driving unit 721 is further described.

[0085] In one embodiment, the positioning pin driving unit 721 includes a pushing cylinder 9, wherein the pushing cylinder 9 includes a cylinder body and a piston rod, wherein the piston rod includes a first end located in the cylinder body and a second end opposite to the first end;

[0086] The positioning pin driving part 721 further includes a positioning pin clamping part 10, which is fixedly connected to the second end of the piston rod and is located in the through hole 722, and can reciprocate along the through hole;

[0087] The positioning pin clamping portion 10 has a buckle 101 that can be clamped with the tail of the first positioning pin 5 or the second positioning pin 6. When the first jig a and the second jig b need to be fixed together, the positioning pin clamping portion 10 moves outward under the action of the push cylinder 9. After moving to a suitable position, the driving shaft drives the flip block 4 to flip, and the tail of the positioning pin is clamped into the buckle 101. At this time, the first jig a and the second jig b are locked together. Next, continue to flip. In one embodiment, after flipping 180°, the first jig a is located at the top and the second jig b is located at the bottom. At this time, the first jig a and the second jig b need to be separated, the second jig b is fixed, and the first jig a is released.

[0088] In one embodiment of the present invention, in order to facilitate operation, the non-offset turning device of the present invention further includes a frame 11 , and the article turning area z is located on the frame 11 .

[0089] In one embodiment of the present invention, the non-offset flipping device of the present invention further includes a blocking positioning mechanism 13, which is fixedly connected to the lifting mechanism 3 and is used to block and position the first fixture a and the second fixture b.

[0090] In one embodiment of the present invention, in order to improve work efficiency and achieve the purpose of automated production, the non-offset flipping device also includes a control module (not shown in the figure), which is used to control the non-offset flipping device to transfer the article from the first fixture to the second fixture or from the second fixture to the first fixture. In addition, the control module can also control the non-offset flipping device to perform other related operations to achieve object flipping, which are not specifically limited here.

[0091] Specifically, the control module includes a positioning sensor and a PLC controller.

[0092] The positioning sensor detects positioning signals of the first fixture and the second fixture, and sends the positioning signals to the PLC controller;

[0093] The PLC controller is electrically connected to the lifting mechanism, the fixture conveying mechanism and the flip clamping mechanism, and controls according to the positioning signal:

[0094] ① The up and down movement of the lifting mechanism;

[0095] ② The jig conveying mechanism moves the first jig and / or the second jig in / out;

[0096] ③ The flip clamping mechanism locks, flips, and unlocks the first fixture and / or the second fixture.

[0097] In one embodiment, the article includes a ceramic pixel unit. The ceramic pixel unit described in the present invention refers to a ceramic structure used for a pixel of an LED light source, such as the ceramic pixel unit applicable to patent numbers 201721313669.1 and 201721598648.9.

[0098] The present invention also provides a non-offset flipping method for a ceramic pixel unit, the method comprising the following steps:

[0099] a. moving a first fixture carrying at least one article into the article turning area through a fixture conveying mechanism;

[0100] b. After the first fixture enters the article turning area and stops, the lifting mechanism drives the turning clamping mechanism with the second fixture to move downward until the second fixture and the first fixture are covered;

[0101] c. Locking the positions of the first fixture and the second fixture so that the object is fixed between the first fixture and the second fixture;

[0102] d. Move the locked first fixture and the second fixture upward, so that the first fixture and the second fixture are flipped from the first position to the second position, so that the article is transferred from the first fixture to the second fixture;

[0103] e. Move the first fixture and the second fixture downward to unlock the positions of the first fixture and the second fixture;

[0104] f. Move the second fixture carrying the article out of the article turning area through the fixture conveying mechanism, and repeat step a after the lifting mechanism returns to its original position.

[0105] The working process of the non-offset flipping device for ceramic pixel units of the present invention is briefly described below.

[0106] After the conveyor line of the jig conveying mechanism 1 sends the first jig a filled with ceramic pixel units to the position blocking positioning mechanism 13 for positioning, the lifting cylinder of the lifting mechanism 3 is started to flip the clamping mechanism 2 downward, driving the second jig b in the mechanism to cover the first jig a on the conveyor line, and it is in a pre-clamping state.

[0107] Start the push cylinder 9 to push the positioning pin clamping part 10 forward, which is transmitted to the pull pin, fixing plate and fixture positioning pin of the second positioning pin 6. The fixture positioning pin locks the first fixture a filled with products below forward and puts it in the clamped state.

[0108] Start the lifting cylinder to lift the mechanism away from the conveyor line. Since the positioning pin clamping part 10 is pushed forward, the pull pin and the blocking block 7 are not in a locked state. Therefore, the first drive shaft 21a, the coupling, the second drive shaft 21b, and the flip block 4 can be flipped 180° by starting the rotating cylinder 211. The first positioning pin 5 rotated to the top is blocked and locked by the blocking block 7, so that the fixture positioning pin locks the first fixture a that has just entered the mechanism and will not fall due to the flipping. After the flipping is completed, the first fixture a that has just entered the mechanism is at the top, and the second fixture b is at the bottom. The ceramic pixel unit falls into the second fixture b due to gravity, and the whole is in a flipped state.

[0109] Start the lifting cylinder to move the flipping clamping mechanism downward and send the mechanism back to the conveying part, start the pushing cylinder 9 to contract, and the positioning pin clamping part 10, the pulling pin of the first positioning pin 5, the fixing plate, and the fixture positioning pin will be contracted in a linked manner. At this time, the pulling pin is pulled into the flipping block 4 by the positioning pin clamping part 10 and locked, completing the positioning, so that the second fixture b filled with ceramic pixel units is detached from the flipping clamping mechanism. At this time, the mechanism is in a released state.

[0110] The lifting cylinder is started to lift the mechanism up and away from the conveyor line, leaving the second fixture b filled with a whole tray of ceramic pixel units on the conveyor line, completing the fixture conversion, and then starting the conveyor line to flow to the next process.

[0111] Compared with the prior art, the present invention provides a non-offset flipping device and flipping method for ceramic pixel units, which adopts a flipping clamping mechanism to solve the problem of switching a whole tray of items between different jigs. The jig is driven up and down, the jig is locked by the flipping clamping mechanism, and the action is completed by flipping. Then the jig is released to complete the clamping and flipping functions, thereby realizing the precise and non-offset switching of a whole tray of items between different jigs. The rationality of the product structure, the reliability and simplicity of use, and the operating efficiency are effectively improved. The device is easy to process, has high precision, and low cost, and is conducive to mass production.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A non-offset flipping device for a ceramic pixel unit, characterized in that: include: A first jig and a second jig, wherein at least one object is carried on the first jig and / or the second jig; A jig conveying mechanism, the jig conveying mechanism is used to move the first jig and / or the second jig into / out of the article turning area; A lifting mechanism, wherein the lifting mechanism is connected to the jig conveying mechanism and the flip clamping mechanism, and is used to drive the flip clamping mechanism and drive the first jig and the second jig clamped by the flip clamping mechanism to move up and down in the article flipping area; A flipping and clamping mechanism, the flipping and clamping mechanism is located in the article flipping area, and is used to fix the article between the first fixture and the second fixture in the article flipping area, and drive the first fixture and the second fixture to flip from a first position to a second position, so as to transfer the article from being carried by the first fixture to being carried by the second fixture or from being carried by the second fixture to being carried by the first fixture; The flip clamping mechanism comprises a first flip clamping mechanism and a second flip clamping mechanism which are arranged opposite to each other. The first flip clamping mechanism and the second flip clamping mechanism are respectively arranged to clamp the two ends of the first fixture and the second fixture, and respectively comprise a driving structure and a clamping structure. The driving structure comprises a rotary cylinder and a driving shaft, wherein the driving shaft comprises a first end and a second end opposite to the first end, and the first end of the driving shaft is connected to the rotary cylinder; The clamping structure comprises: A flip block, wherein the flip block is arranged at the second end of the driving shaft so that the flip block rotates under the driving of the driving shaft; A first positioning pin and a second positioning pin, wherein the first positioning pin and the second positioning pin are both movably disposed on the flip block and respectively cooperate with a first positioning hole on the first fixture and a second positioning hole on the second fixture in the article flipping area; A blocking block, the blocking block is connected to the lifting mechanism and has a blocking block through hole, the driving shaft is installed in the blocking block through hole; the blocking block includes a stopper and an adjusting portion, when adjusted to the stopper, the first positioning pin and the second positioning pin cannot withdraw from the first positioning hole or the second positioning hole, so as to lock the position of the first fixture and the second fixture; when adjusted to the adjusting portion, the first positioning pin and the second positioning pin can withdraw from the first positioning hole or the second positioning hole, so as to unlock the position of the first fixture and the second fixture; The adjusting part includes a positioning pin driving part, which can cooperate with the tail of the first positioning pin or the second positioning pin to actuate the first positioning pin or the second positioning pin to reciprocate relative to the flip block in a direction parallel to the axis of the rotating shaft, so as to enter or exit the first positioning hole or the second positioning hole at the first position or the second position; The adjusting portion includes a through hole, and at least a portion of the positioning pin driving portion passes through the through hole to drive the first positioning pin or the second positioning pin to enter or exit the first positioning hole or the second positioning hole.

2. The non-offset flipping device for a ceramic pixel unit according to claim 1, characterized in that: The driving structure is connected to the lifting mechanism.

3. The non-offset flipping device for a ceramic pixel unit according to claim 2, characterized in that: The rotary cylinder is arranged on the lifting mechanism.

4. The non-offset flipping device for a ceramic pixel unit according to claim 3, characterized in that: The drive shaft includes a first drive shaft and a second drive shaft, The first drive shaft and the second drive shaft are coaxially arranged and fixedly connected via a coupling.

5. The non-offset flipping device for a ceramic pixel unit according to claim 1, characterized in that: The positioning pin driving unit further comprises: A push cylinder, the push cylinder comprising a cylinder body and a piston rod, the piston rod comprising a first end located in the cylinder body and a second end opposite to the first end; A positioning pin clamping portion, the positioning pin clamping portion is connected to the second end of the piston rod and is located in the through hole so that the positioning pin clamping portion can reciprocate in the through hole; The positioning pin clamping portion has a buckle that can be clamped with the tail of the first positioning pin or the second positioning pin.

6. The non-offset flipping device for a ceramic pixel unit according to claim 1, characterized in that: It also includes a control module, and the control module is used to control the non-offset flipping device to transfer the article from the first jig to the second jig or from the second jig to the first jig.

7. The non-offset flipping device for a ceramic pixel unit according to claim 6, characterized in that: The control module includes a positioning sensor and a PLC controller. The positioning sensor detects positioning signals of the first fixture and the second fixture, and sends the positioning signals to the PLC controller; The PLC controller is electrically connected to the lifting mechanism, the fixture conveying mechanism and the flip clamping mechanism, and controls according to the positioning signal: The up and down movement of the lifting mechanism; The jig conveying mechanism moves the first jig and / or the second jig in / out; The flip clamping mechanism locks, flips, and unlocks the first fixture and / or the second fixture.

8. The non-offset flipping device for a ceramic pixel unit according to claim 1, characterized in that: The article includes a ceramic pixel unit.

9. A non-offset flipping method for a ceramic pixel unit, characterized in that: The method is implemented based on the non-offset flipping device according to any one of claims 1 to 8, and comprises the following steps: a. moving a first fixture carrying at least one article into the article turning area through a fixture conveying mechanism; b. After the first fixture enters the article turning area and stops, the lifting mechanism drives the turning clamping mechanism with the second fixture to move downward until the second fixture and the first fixture are covered; c. Locking the positions of the first fixture and the second fixture so that the object is fixed between the first fixture and the second fixture; d. Move the locked first fixture and the second fixture upward, so that the first fixture and the second fixture are flipped from the first position to the second position, so that the article is transferred from the first fixture to the second fixture; e. Move the first fixture and the second fixture downward to unlock the positions of the first fixture and the second fixture; f. Move the second fixture carrying the article out of the article turning area through the fixture conveying mechanism, and repeat step a after the lifting mechanism returns to its original position.

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