A positioning device for processing multi-panel glass

Abstract

This invention discloses a positioning device for processing multi-panel glass panels, including a positioning unit, a trigger adsorption assembly, and a pressing trigger. The positioning unit includes a support base, a mounting platform, an adsorption sleeve, a suction nozzle, a sealing barrier, and a pad. The top of the mounting platform has mounting holes spaced evenly in both directions. The sealing barrier forms a sealed cavity between the mounting platform and the pad, maintaining a negative pressure state. The trigger adsorption assembly is located inside the adsorption sleeve and includes a piston, a trigger tube, an end cap, and a first return spring. A first magnetic block is located at the lower end of the trigger tube, and an electromagnet is located on the pad. The pressing trigger includes a push rod, a receiving groove, a locking steel ball, and a locking groove, forming a mechanical locking structure. This invention eliminates the need for manual adjustment of the positioning spacing and additional electronic control detection components. Adsorption triggering is timely and reliable, with low energy consumption, and is suitable for the rapid batch processing positioning needs of multi-specification glass panels.

Description

Technical Field

[0001] This invention relates to the field of glass processing equipment technology, specifically to a positioning device for processing multi-panel glass. Background Technology

[0002] Glass panels are core components in optoelectronic displays, home decoration, precision instruments, and other fields. During precision processing steps such as cutting, grinding, drilling, and coating of glass panels, specialized positioning equipment is required to stably clamp and position multiple glass panels to ensure processing accuracy and consistency.

[0003] Currently, there are various positioning tooling devices available in the industry for processing multi-panel glass, mainly including the following technical approaches: (1) Screw-driven adjustable positioning device: For example, the prior art with patent number 202120714879.1 discloses "a positioning device for processing multiple glass panels". This device mainly relies on the screw drive structure to complete the adaptation and adjustment of the positioning specifications to match the positioning requirements of glass panels of different sizes and specifications. In actual processing and production scenarios, the types of glass panels processed are complicated, and it is necessary to frequently switch between glass workpieces of different sizes and specifications for processing. Each time the processing specifications are switched, the screw structure needs to be manually adjusted. The spacing and positioning range of the positioning structure are finely adjusted by the reciprocating movement of the screw. The operation process is cumbersome and the adjustment steps are many, making it impossible to achieve rapid adaptation and switching.

[0004] (2) Electromagnet-driven adsorption device: For example, CN101559602A discloses an adsorption device, including a suction head, a cylinder, a piston, an elastic element and an electromagnet. The adsorption and release of the suction head are achieved by the piston sliding in the cylinder driven by the electromagnet. Although this solution achieves electromagnetically controlled adsorption, each adsorption unit needs to be independently configured with an electromagnet and an electrical control circuit. The equipment cost is high, the wiring is complicated, and it cannot achieve the selective adsorption function of "automatically starting adsorption only at the workpiece placement position". It is not suitable for batch processing scenarios of multi-station and multi-specification glass panels.

[0005] (3) Multi-channel vacuum adsorption device: For example, patent number 202223547551 discloses a multi-channel vacuum adsorption device, which realizes multi-channel independent adsorption by setting multiple independent adsorption channels in the inner cavity of the support box. However, this solution requires manual or electronic control to select and open the corresponding channels one by one, which still has the problems of inconvenient operation or complex electronic control system. In addition, if the channel without workpiece is not properly sealed, it will cause the overall negative pressure of the system to drop, increasing energy consumption.

[0006] (4) Passive trigger adsorption mechanism: Existing studies have also included a scheme to use a passive suction cup in conjunction with a trigger release mechanism to grasp the workpiece. However, it is mainly aimed at the gripping and placement scenario of the robot gripper. It releases by triggering the suction cup to retract through negative pressure. It is not for the adaptive positioning requirements of multiple glass panels on a fixed platform. Moreover, its structure cannot achieve the adaptive selective adsorption function of "adsorption when placed and sealing when not placed".

[0007] In summary, the existing technology has the following technical problems: Problem 1: The adjustment method is cumbersome. When switching processing specifications, it is necessary to manually adjust the lead screw and other positioning structures, resulting in low operating efficiency. Question 2: The adsorption method lacks adaptability and cannot automatically select the corresponding adsorption point according to the actual placement position of the glass panel. Additional sensors or manual selection are required. Question 3: Poor energy consumption control. If the adsorption points where no workpiece is placed are not properly sealed, it will lead to negative pressure leakage, increasing the energy consumption of the negative pressure pump for frequent pressure replenishment. Question 4: It is difficult to balance equipment cost and reliability. Although the electronically controlled selection scheme can achieve selective adsorption, it has a large number of sensors and control components, a high failure rate, and high maintenance costs. Summary of the Invention

[0008] The purpose of this invention is to provide a positioning device for processing multi-panel glass panels, so as to solve the problems mentioned above.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A positioning device for processing multi-panel glass includes a positioning unit (100) and a trigger adsorption component (200).

[0010] The number of positioning units (100) is at least one set. Each positioning unit (100) includes a support base (101) for supporting the positioning equipment for processing and a mounting platform (102) fixedly installed on the top of the support base (101). The top of the mounting platform (102) is provided with a plurality of mounting holes (103) that are evenly distributed in the longitudinal and transverse directions. An adsorption sleeve (104) is fixedly assembled inside the mounting holes (103). A suction nozzle (105) is fixedly provided on the top of the adsorption sleeve (104). A vent hole (1004) is provided through the side wall of the adsorption sleeve (104). A pad (107) is fixedly provided at the bottom of the mounting platform (102). A sealing barrier (106) is fixedly provided between the pad (107) and the mounting platform (102). The sealing barrier (106) forms a sealed cavity between the mounting platform (102) and the pad (107). The inside of the sealed cavity is under negative pressure.

[0011] The trigger adsorption assembly (200) is disposed inside the adsorption sleeve (104). The trigger adsorption assembly (200) can move axially along the adsorption sleeve (104). In the initial state, the trigger adsorption assembly (200) seals the vent hole (1004), thereby preventing pressure leakage inside the sealed cavity. A press trigger (300) is slidably disposed inside the trigger adsorption assembly (200). The upper end of the press trigger (300) extends to the top periphery of the trigger adsorption assembly (200). When the glass panel is placed on top of the suction nozzle (105), the glass panel presses the press trigger (300) downward relative to the trigger adsorption assembly (200), thereby triggering the trigger adsorption assembly (200) to move downward and misalign with the vent hole (1004). The negative pressure inside the sealed cavity is transmitted to the adsorption sleeve (104) and the inside of the suction nozzle (105) through the vent hole (1004), thereby adsorbing and positioning the glass panel.

[0012] As a preferred embodiment of the present invention, the bottom of the mounting platform (102) is fixedly provided with a plurality of hanging rods (108) for fixing the pad (107). The bottom of the hanging rods (108) is fixedly assembled with the top of the pad (107) by fasteners. The side of the sealing enclosure (106) is provided with at least one negative pressure interface (109). The negative pressure interface (109) is connected to the output end of an external negative pressure pump through a pipe fitting.

[0013] As a preferred embodiment of the present invention, the trigger adsorption assembly (200) includes a piston (201) slidably mounted on the inner annular surface of the adsorption sleeve (104). A trigger tube (202) is fixedly disposed inside the piston (201). The trigger tube (202) is a cylindrical tube extending vertically, and its vertical length is much greater than its diameter. The trigger tube (202) penetrates the top and bottom of the piston (201). An end cap (203) is fixedly disposed at the bottom of the adsorption sleeve (104). A first reset spring (204) is sleeved around the trigger tube (202). The first reset spring (204) is fixedly assembled between the bottom of the piston (201) and the inner surface of the bottom of the end cap (203).

[0014] As a preferred embodiment of the present invention, a first magnetic block (205) is fixedly disposed on the outer ring surface near the lower end of the trigger tube (202), and an electromagnet (206) is fixedly disposed on the top of the pad (107), with the electromagnet (206) located at the bottom of the first magnetic block (205). In the initial state, a gap is provided between the top of the electromagnet (206) and the bottom of the first magnetic block (205), and the gap is greater than the vertical height of the piston (201). The first magnetic block (205) and the electromagnet (206) are magnetically attracted when energized. This structure allows the electromagnet (206) to generate magnetic attraction when the pressing trigger (300) releases the locking of the trigger adsorption assembly (200), driving the first magnetic block (205) to move the trigger tube (202) and the piston (201) down the inner ring surface of the adsorption sleeve (104), thereby opening the vent (1004).

[0015] As a preferred embodiment of the present invention, the pressing trigger (300) includes a push rod (301) slidably mounted on the inner annular surface of the trigger tube (202). The push rod (301) is cylindrical, and its vertical length is much greater than its diameter. A receiving groove (302) is provided on the outer annular surface of the push rod (301) near its lower end. The pressing trigger (300) also includes a steel ball hole (303) penetrating through the outer annular surface of the receiving groove (302). In the initial state, the steel ball hole (303) is located at the bottom of the receiving groove (302). There are several steel ball holes (303), which are evenly distributed in a ring along the outer annular surface of the trigger tube (202). Locking steel balls (305) are movably embedded inside each of the steel ball holes (303). In the initial state, the inner spherical surface of the locking steel ball (305) abuts against and limits the outer ring surface of the top rod (301). The outer side of the locking steel ball (305) is engaged in the locking groove (304) inside the inner ring surface of the end cover (203), forming a mechanical locking structure between the trigger tube (202) and the end cover (203).

[0016] As a preferred embodiment of the present invention, a limiting ring (306) is fixedly provided on the outer ring surface near the upper end of the push rod (301). A second return spring (307) is fixedly provided between the bottom of the limiting ring (306) and the top of the piston (201). The second return spring (307) is sleeved around the push rod (301), and the elastic force of the second return spring (307) is greater than the overall weight of the push rod (301). After material removal, the second return spring (307) drives the push rod (301) to return upward, pushing the locking ball (305) back into the locking groove (304) to complete the locking.

[0017] As a preferred embodiment of the present invention, a contact head (308) is fixedly provided on the top of the top rod (301), and the contact head (308) is an elastic rubber structure.

[0018] As a preferred embodiment of the present invention, at least one cooling fan (400) is fixedly provided at the bottom of the pad (107), and the cooling fan (400) is used to blow air upward to dissipate heat from the bottom of the pad (107) and the electromagnet (206).

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. Achieving rapid adaptive positioning of glass panels of different specifications. This invention sets multiple adsorption positioning points evenly spaced in both directions on the top of the mounting platform (102). This eliminates the need for manual adjustment of the spacing and range of the positioning structure. Different sizes and quantities of glass panels are simply placed directly on the surface of the mounting platform. The corresponding pressing trigger (300) is triggered by the glass panel pressing down, automatically activating the negative pressure adsorption path at the corresponding position to achieve adsorption positioning of the glass panel. Compared to existing technologies (such as 202120714879.1) that require manual adjustment of the lead screw, this invention is simple to operate and eliminates the need for cumbersome adjustments when switching processing specifications, significantly improving the switching efficiency of multiple types of glass panels.

[0020] 2. Purely mechanical locking trigger structure, requiring no additional electronic control detection components. This invention utilizes a mechanical locking trigger structure between the pressing trigger element (300) and the trigger adsorption assembly (200)—namely, the cooperation between the locking steel ball (305) and the locking groove (304), and the linkage between the top rod (301) and the receiving groove (302)—to trigger the glass panel by its own weight when placed, eliminating the need for additional electronic control detection components such as photoelectric sensors and pressure sensors. Compared to existing technologies (such as CN101559602A), where each adsorption unit requires an independent electromagnet and electronic control circuit, this invention reduces the overall equipment modification cost and failure rate, provides timely and stable adsorption trigger response, and is suitable for the rapid batch processing needs of various types of glass panels.

[0021] 3. Selective adsorption, maintaining a sealed, pressure-free environment in areas without workpiece placement. During the positioning of the glass panel, the contact head (308) not subjected to pressure from the glass panel remains in its initial preset state, and the piston (201) at the corresponding position continues to seal the vent (1004), preventing leakage from the sealed cavity. Unlike existing technologies (such as the 202223547551 multi-channel vacuum adsorption device), which may suffer from poor sealing in channels without workpiece placement, this invention enables only the adsorption unit corresponding to the glass panel placement position to activate negative pressure adsorption, while the units without glass panel placement remain sealed and pressure-free. This effectively ensures the stability of the negative pressure inside the sealed cavity, reduces the energy consumption of frequent pressure replenishment by the negative pressure pump, and saves equipment operating costs.

[0022] 4. The combination of mechanical locking and electromagnetic drive ensures reliable and controllable triggering. This invention innovatively combines pure mechanical locking triggering (locking steel ball + locking groove + receiving groove) with electromagnetic drive (electromagnet + first magnetic block): when the glass panel is placed, the mechanical structure first releases the lock, and then the electromagnet drives the piston to slide down and open the vent. When the material is removed, the electromagnet is de-energized and automatically resets and relocks via a spring. This dual mechanism ensures both the mechanical reliability of the triggering (unaffected by electrical interference) and the controllability of the electromagnetic drive (adsorption and release are controlled by the on / off state of the electromagnet). Furthermore, the electromagnet is only briefly energized after triggering, unlike existing technologies where the electromagnet needs to be continuously energized to maintain adsorption, further reducing energy consumption.

[0023] 5. Modular design, expandable and adaptable to various processing scenarios. The positioning unit (100) of this invention can be configured into multiple sets for splicing and arrangement, forming an expanded multi-station processing positioning platform to adapt to the batch processing needs of glass panels of different sizes. At the same time, the sealed cavity structure can be set independently or connected through pipelines to flexibly adapt to different processing scales. With the active cooling of the electromagnet (206) by the cooling fan (400), the equipment can be kept stable for a long time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the positioning unit in this invention; Figure 3 This is a schematic diagram of the positioning unit in this invention; Figure 4 This is a schematic diagram of the mounting platform in this invention; Figure 5 This is a schematic diagram of the structure of the sealed enclosure in this invention; Figure 6 This is a schematic diagram of the structure of the trigger adsorption component in this invention; Figure 7 This is a side cross-sectional view of the adsorption sleeve in this invention; Figure 8 This is a schematic diagram of the structure of the press trigger in this invention; Figure 9 for Figure 8 A partial structural diagram.

[0025] In the diagram: 100, Positioning unit; 101, Support base; 102, Mounting platform; 103, Mounting hole; 104, Adsorption sleeve; 105, Suction nozzle; 1004, Vent hole; 106, Sealing enclosure; 107, Pad plate; 108, Hanging rod; 109, Negative pressure interface; 200, Trigger adsorption assembly; 201, Piston; 202, Trigger tube; 203, End cap; 204, First return spring; 205, First magnet; 206, Electromagnet; 300, Press trigger element; 301, Top rod; 302, Receiving groove; 303, Steel ball hole; 304, Locking groove; 305, Locking steel ball; 306, Limiting ring; 307, Second return spring; 308, Contact head; 400, Fan. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 9 The present invention provides a positioning device for processing multi-panel glass, comprising a positioning unit (100), a trigger adsorption assembly (200), and a pressing trigger (300). The following is a detailed description of each part.

[0028] I. Structure and Working Principle of Positioning Unit (100) The number of positioning units (100) is at least one set. The positioning unit (100) includes a support base (101) for supporting the positioning equipment for processing and a mounting platform (102) fixedly installed on the top of the support base (101). The top of the mounting platform (102) is provided with a number of mounting holes (103) that are evenly distributed in the longitudinal and transverse directions. An adsorption sleeve (104) is fixedly installed inside the mounting holes (103). A suction nozzle (105) is fixedly installed on the top of the adsorption sleeve (104). A vent hole (1004) is provided through the side wall of the adsorption sleeve (104). A pad (107) is fixedly installed at the bottom of the mounting platform (102). A sealing barrier (106) is fixedly installed between the pad (107) and the mounting platform (102). The sealing barrier (106) forms a sealed cavity between the mounting platform (102) and the pad (107). The inside of the sealed cavity is under negative pressure.

[0029] The mounting platform (102) has several hanging rods (108) fixedly installed at its bottom for fixing the pad (107). The bottom of the hanging rods (108) is fixedly assembled to the top of the pad (107) by fasteners. The sealing enclosure (106) has at least one negative pressure port (109) on its side. The negative pressure port (109) is connected to the output end of an external negative pressure pump through a pipe fitting. In use, the external negative pressure pump continuously evacuates the sealing cavity through the negative pressure port (109) to maintain a negative pressure state inside the sealing cavity.

[0030] The mounting holes (103) on the top of the mounting platform (102) are arranged in a matrix with equal spacing in both directions, forming a grid-like array of adsorption positioning points. Each mounting hole (103) is equipped with an independent adsorption sleeve (104) and a suction nozzle (105), constituting an independent adsorption unit. Because the mounting holes (103) are evenly distributed, when a glass panel of any size is placed on the surface of the mounting platform (102), as long as it covers at least one adsorption unit, the adsorption function at that position can be triggered without the need for manual adjustment of the positioning spacing.

[0031] When multiple positioning units (100) are set, the multiple positioning units (100) can be arranged horizontally and / or vertically to form an extended multi-station processing positioning platform. The sealed cavity of each positioning unit (100) can be set independently, or they can be connected through pipelines to share the same negative pressure source to adapt to processing needs of different scales.

[0032] II. Structure and Working Principle of the Trigger Adsorption Component (200) The trigger adsorption component (200) is located inside the adsorption sleeve (104) and can move axially along the adsorption sleeve (104). In the initial state, the trigger adsorption component (200) seals the vent hole (1004) to prevent pressure leakage inside the sealed cavity.

[0033] The trigger adsorption assembly (200) includes a piston (201) slidably mounted on the inner annular surface of the adsorption sleeve (104), and a trigger tube (202) is fixedly disposed inside the piston (201). The trigger tube (202) is a cylindrical tube that runs vertically through the piston, and its vertical length is much greater than its diameter. The trigger tube (202) passes through the top and bottom of the piston (201). An end cap (203) is fixedly disposed at the bottom of the adsorption sleeve (104), and a first return spring (204) is sleeved around the trigger tube (202). The first return spring (204) is fixedly assembled between the bottom of the piston (201) and the inner surface of the bottom of the end cap (203).

[0034] A first magnetic block (205) is fixedly mounted on the outer ring surface near the lower end of the trigger tube (202), and an electromagnet (206) is fixedly mounted on the top of the pad (107), with the electromagnet (206) located at the bottom of the first magnetic block (205). In the initial state, there is a gap between the top of the electromagnet (206) and the bottom of the first magnetic block (205), and this gap is greater than the vertical height of the piston (201). The first magnetic block (205) and the electromagnet (206) are attracted to each other when energized.

[0035] When the glass panel applies pressure to the top of the pressing trigger (300), the pressing trigger (300) moves downward, releasing the mechanical lock on the trigger adsorption assembly (200). Subsequently, the electromagnet (206) is energized to generate magnetic attraction, and the first magnetic block (205) is attracted and moves downward, thereby driving the trigger tube (202) and piston (201) to slide down along the inner ring surface of the adsorption sleeve (104), and the vent hole (1004) is opened. The negative pressure inside the sealed cavity is transmitted to the adsorption sleeve (104) and the inside of the suction nozzle (105) through the vent hole (1004), and finally the glass panel is adsorbed and fixed on the surface of the equipment through the suction nozzle (105), completing the automatic positioning adsorption.

[0036] When picking up materials, the electromagnet (206) is de-energized and loses its magnetic attraction effect. Under the elastic force of the first reset spring (204), the piston (201) and the trigger tube (202) are reset upward as a whole. After reset, the piston (201) re-seals the vent (1004) to ensure that the negative pressure inside the sealed cavity does not leak, so that there is no need to re-vacuum when using it next time, effectively reducing energy consumption and reducing the frequent start-up of the negative pressure pump.

[0037] The driving method of the electromagnet (206) in this invention is fundamentally different from that in the prior art: in the prior art (such as CN101559602A), the electromagnet needs to be continuously energized to maintain the adsorption state of the piston, while in this invention, the electromagnet (206) is only briefly energized after the trigger (300) is pressed to release the lock, driving the piston (201) to slide down. After the piston (201) slides down to the bottom, the vent (1004) opens, and the negative pressure is continuously maintained by an external negative pressure pump. At this time, the electromagnet (206) can be de-energized, and the adsorption state is maintained by the negative pressure rather than the electromagnetic force. Therefore, this invention significantly reduces the energizing time and energy consumption of the electromagnet.

[0038] III. Mechanical locking and trigger release of the press trigger element (300) The press trigger (300) is located inside the trigger adsorption assembly (200), specifically as a push rod (301) that is slidably mounted on the inner annular surface of the trigger tube (202). The push rod (301) is cylindrical, and its vertical length is much greater than its diameter. A receiving groove (302) is provided on the outer annular surface of the push rod (301) near its lower end.

[0039] The press trigger (300) also includes a steel ball hole (303) that penetrates the outer ring surface of the receiving groove (302). In the initial state, the steel ball hole (303) is located at the bottom of the receiving groove (302). There are several steel ball holes (303), which are evenly distributed in a ring along the outer ring surface of the trigger tube (202). A locking steel ball (305) is movably embedded inside each steel ball hole (303). In the initial state, the inner spherical surface of the locking steel ball (305) abuts against and limits the outer ring surface of the push rod (301).

[0040] The press trigger (300) also includes a locking groove (304) formed on the inner annular surface of the end cap (203). In the initial state, the locking groove (304) and the ball hole (303) are at the same height, and the outer side of the locking ball (305) is engaged with the inside of the locking groove (304), thereby forming a mechanical locking structure between the trigger tube (202) and the end cap (203). This locking structure ensures that in the initial state, even if the electromagnet (206) is energized and generates magnetic attraction, the trigger tube (202) and the piston (201) cannot move down because the trigger tube (202) is locked by the mechanical engagement of the locking ball (305) and the locking groove (304), and the vent hole (1004) remains sealed.

[0041] A limiting ring (306) is fixedly installed on the outer ring surface near the upper end of the push rod (301). A second return spring (307) is fixedly installed between the bottom of the limiting ring (306) and the top of the piston (201). The second return spring (307) is sleeved around the push rod (301), and the elastic force of the second return spring (307) is greater than the overall weight of the push rod (301). A contact head (308) is fixedly installed on the top of the push rod (301). The contact head (308) is an elastic rubber structure used to provide cushioning and prevent scratches on the surface of the glass panel when it is placed.

[0042] When the glass panel is placed on top of the suction nozzle (105), the glass panel presses down on the corresponding contact head (308), causing the push rod (301) to slide downward along the inner ring of the trigger tube (202) against the elastic force of the second return spring (307). As the push rod (301) moves downward, it drives the receiving groove (302) to move together. When the receiving groove (302) moves to the same height as the ball hole (303), the locking ball (305), which was originally limited by the outer ring of the push rod (301), loses its compression limit and, under the action of gravity, disengages from the inside of the locking groove (304) and enters the cavity between the ball hole (303) and the receiving groove (302). At this time, the locking ball (305), which was originally locked inside the locking groove (304), disengages from the locking groove (304), releasing the mechanical locking state between the trigger tube (202) and the end cap (203).

[0043] After the lock is released, the magnetic attraction of the electromagnet (206) drives the first magnetic block (205) to move downward, causing the trigger tube (202) and piston (201) to slide down along the inner ring surface of the adsorption sleeve (104), opening the vent hole (1004). The negative pressure inside the sealed cavity is transmitted to the adsorption sleeve (104) and the inside of the suction nozzle (105) through the vent hole (1004), and finally the glass panel is adsorbed and fixed on the surface of the equipment through the suction nozzle (105).

[0044] When picking up materials, the electromagnet (206) is de-energized and loses its magnetic attraction effect. Under the elastic force of the first return spring (204), the piston (201) and the trigger tube (202) are reset upward as a whole. After reset, the piston (201) re-seals the vent hole (1004). At the same time, the push rod (301) is reset upward under the elastic force of the second return spring (307). The outer ring surface of the push rod (301) re-presses the locking steel ball (305), pushing the locking steel ball (305) back from the inside of the receiving groove (302) to between the steel ball hole (303) and the locking groove (304), and re-locking it inside the locking groove (304) to complete the mechanical locking, waiting for the next glass panel placement to trigger adsorption.

[0045] IV. The Principle of Selective Adsorption The core innovation of this device lies in its selective adsorption function. During the positioning of the glass panel, the contact head (308) that is not squeezed by the glass panel remains in its initial preset state, the corresponding push rod (301) does not move down, the locking ball (305) remains locked inside the locking groove (304), and the mechanical lock between the trigger tube (202) and the end cap (203) is not released. Therefore, even if the electromagnet (206) is energized, the piston (201) at the corresponding position remains locked in place, the vent (1004) remains sealed, and no leakage of the sealed cavity will occur.

[0046] This ensures that only the adsorption units corresponding to the glass panel are activated for negative pressure adsorption, while units without glass panels remain sealed and pressure-free. This effectively guarantees the stability of the negative pressure inside the sealed cavity, reduces the energy consumption of frequent pressure replenishment by the negative pressure pump, and saves on equipment operating costs.

[0047] V. Heat Dissipation Design At least one cooling fan (400) is fixedly installed at the bottom of the pad (107). The cooling fan (400) blows air upward to dissipate heat from the bottom of the pad (107) and the electromagnet (206). Since the electromagnet (206) generates heat when it is working, and the sealed cavity is under negative pressure, the heat is not easy to dissipate. The installation of the cooling fan (400) effectively extends the service life of the electromagnet (206) and the overall equipment, ensuring that the equipment operates stably for a long time.

[0048] The complete workflow of the positioning device for processing multi-glass panels according to the present invention is as follows: Step 1: Initial Preparation. An external negative pressure pump evacuates the sealed cavity through the negative pressure port (109), maintaining a negative pressure state inside the sealed cavity. At this time, the pistons (201) of all adsorption units are in the initial position, and the vent (1004) is sealed by the pistons (201). All locking steel balls (305) are engaged inside the locking grooves (304), and the trigger tube (202) and the end cap (203) are mechanically locked. The electromagnet (206) is in the de-energized state.

[0049] Step 2: Place the glass panels. The operator places multiple glass panels of different sizes one by one on the top of the suction nozzle (105) on the surface of the mounting platform (102). During placement, the glass panels press down on the corresponding contact head (308), causing the push rod (301) to overcome the elastic force of the second return spring (307) and slide downward along the inner ring of the trigger tube (202).

[0050] Step 3: Mechanical lock release. As the push rod (301) moves downward, the receiving groove (302) moves accordingly. When the receiving groove (302) moves to the same height as the steel ball hole (303), the locking steel ball (305) loses the squeezing limit of the outer ring surface of the push rod (301), and under the action of gravity, it comes out from the locking groove (304) and enters the internal cavity of the receiving groove (302), releasing the mechanical lock between the trigger tube (202) and the end cap (203).

[0051] Step 4: Electromagnetic drive activates adsorption. After the mechanical lock is released, the electromagnet (206) is energized to generate magnetic attraction. The first magnetic block (205) is attracted and moves downward, causing the trigger tube (202) and piston (201) to slide down along the inner ring surface of the adsorption sleeve (104), and the vent (1004) is opened. The negative pressure inside the sealed cavity is transmitted to the adsorption sleeve (104) and the suction nozzle (105) through the vent (1004), and the glass panel is adsorbed and fixed to the surface of the equipment through the suction nozzle (105).

[0052] Step 5: Selective Adsorption. During steps 2 to 4, in the position where no glass panel is placed, the contact head (308) remains in its initial state, the corresponding push rod (301) does not move down, the locking ball (305) remains engaged inside the locking groove (304), the piston (201) is locked in its original position, and the vent (1004) remains sealed. Therefore, only the adsorption unit where the glass panel is placed opens for negative pressure adsorption, while the other units remain sealed and do not release pressure, and the negative pressure inside the sealed cavity is stable.

[0053] Step 6: Processing Operations. After the glass panel is adsorbed and fixed, it can be cut, polished, drilled, coated, and other processing operations. During the processing, the adsorption state is maintained by the continuous negative pressure inside the sealed cavity, and the electromagnet (206) can be de-energized, without the need for continuous power supply.

[0054] Step 7: Material Retrieval and Reset. After processing, the electromagnet (206) is de-energized and loses its magnetic attraction effect. Under the elastic force of the first reset spring (204), the piston (201) and trigger tube (202) are reset upward as a whole. The piston (201) reseals the vent hole (1004), the suction nozzle (105) loses negative pressure, and the glass panel is released. At the same time, the push rod (301) is reset upward under the elastic force of the second reset spring (307), pushing the locking steel ball (305) back into the locking groove (304) to complete the mechanical locking, waiting for the next placement of the glass panel to trigger adsorption. The cooling fan (400) works continuously during equipment operation to dissipate heat from the bottom of the pad (107) and the electromagnet (206).

[0055] The above embodiments are merely preferred embodiments of the present invention, and the present invention also includes the following alternative embodiments: Alternative embodiment 1: The electromagnet (206) can be replaced with a combination structure of a permanent magnet and an electromagnetic coil. That is, under normal conditions, the permanent magnet provides the attraction force, and when the electromagnetic coil is energized, it generates a reverse magnetic field to counteract the permanent magnet force to achieve release. This solution also falls within the protection scope of this invention.

[0056] Alternative embodiment 2: The number of locking steel balls (305) can be set to 3, 4, 6 or other numbers, and they are evenly distributed in a ring along the outer ring surface of the trigger tube (202). The specific number is determined according to the locking strength requirements.

[0057] Alternative embodiment 3: The contact head (308) can be replaced with other elastic materials such as silicone, polyurethane, and fluororubber to adapt to glass panels with different surface roughness.

[0058] Alternative embodiment 4: The positioning unit (100) can be configured as two or more sets spliced ​​together to form a larger processing positioning platform. The sealed cavities of multiple positioning units can be connected in series through pipelines to share the same negative pressure source, or they can be configured with independent negative pressure sources.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of protection of the invention should be defined by the claims.

Claims

1. A positioning device for processing multi-panel glass, characterized in that, include: The positioning unit (100) includes a support base (101) and a mounting platform (102). The mounting platform (102) has several mounting holes (103) that are evenly spaced in the longitudinal and transverse directions. An adsorption sleeve (104) is installed in the mounting hole (103). The adsorption sleeve (104) has a suction nozzle (105) at the top and a vent hole (1004) on its side wall. A pad (107) is provided below the mounting platform (102). A sealed cavity is formed between the pad (107) and the mounting platform (102). The sealed cavity is under negative pressure. A trigger adsorption component (200) is disposed inside the adsorption sleeve (104) and can move along its axial direction. In the initial state, the trigger adsorption component (200) seals the vent hole (1004). A press trigger (300) is slidably disposed inside the trigger adsorption component (200), and the upper end of the press trigger (300) extends to the top periphery of the trigger adsorption component (200). When the glass panel is placed on top of the suction nozzle (105), the glass panel presses the pressing trigger (300) downward, triggering the trigger adsorption component (200) to move downward and misalign with the vent (1004), so that the negative pressure inside the sealed cavity is transmitted to the suction nozzle (105) through the vent (1004) to adsorb and position the glass panel; the trigger adsorption component (200) corresponding to the position where the glass panel is not placed maintains the seal on the vent (1004).

2. The positioning device for processing multi-panel glass as described in claim 1, characterized in that: The mounting platform (102) has several hanging rods (108) at its bottom. The bottom of the hanging rods (108) is fixedly assembled with the pad (107). The side of the sealed cavity is provided with a negative pressure interface (109), which is connected to an external negative pressure pump.

3. The positioning device for processing multi-panel glass as described in claim 1, characterized in that: The trigger adsorption assembly (200) includes a piston (201) slidably installed inside the adsorption sleeve (104), a trigger tube (202) fixedly installed inside the piston (201), an end cap (203) provided at the bottom of the adsorption sleeve (104), and a first reset spring (204) sleeved around the trigger tube (202), the first reset spring (204) being assembled between the piston (201) and the end cap (203).

4. The positioning device for processing multi-panel glass as described in claim 3, characterized in that: The trigger tube (202) is provided with a first magnetic block (205) at its lower end, and an electromagnet (206) is provided on the pad (107). When the electromagnet (206) is energized, it is magnetically attracted to the first magnetic block (205), driving the trigger tube (202) and the piston (201) to slide down, causing the piston (201) to be misaligned with the vent (1004).

5. The positioning device for processing multi-panel glass as described in claim 3, characterized in that: The pressing trigger (300) includes a push rod (301) slidably assembled in the trigger tube (202), and a receiving groove (302) is provided on the outer ring surface of the lower end of the push rod (301); a plurality of steel ball holes (303) are provided on the outer ring surface of the trigger tube (202), and a locking steel ball (305) is movably embedded in the steel ball hole (303). In the initial state, the locking steel ball (305) abuts against and limits the outer ring surface of the push rod (301).

6. The positioning device for processing multi-panel glass as described in claim 5, characterized in that: The end cap (203) has a locking groove (304) on its inner ring surface. In the initial state, the locking ball (305) is engaged in the locking groove (304) to form a mechanical locking structure between the trigger tube (202) and the end cap (203). When the push rod (301) is moved down by the pressure of the glass panel to the same height as the receiving groove (302) and the ball hole (303), the locking ball (305) loses its limit and comes out of the locking groove (304), releasing the mechanical lock.

7. The positioning device for processing multi-panel glass as described in claim 6, characterized in that: The upper end of the push rod (301) is provided with a limiting ring (306), and a second return spring (307) is provided between the limiting ring (306) and the piston (201). The elastic force of the second return spring (307) is greater than the weight of the push rod (301), and is used to drive the push rod (301) to reset after taking material and push the locking steel ball (305) back into the locking groove (304) to complete the locking.

8. The positioning device for processing multi-panel glass as described in claim 7, characterized in that: The top of the top rod (301) is provided with a contact head (308), which is made of an elastic material.

9. The positioning device for processing multi-panel glass as described in claim 1, characterized in that: The bottom of the pad (107) is provided with a cooling fan (400), which blows air upwards to dissipate heat.

10. A positioning device for processing multi-panel glass panels according to claim 1, characterized in that: The number of positioning units (100) is multiple sets, and multiple sets of positioning units (100) are spliced ​​and arranged to form an extended processing positioning platform. The sealed cavity is set independently or connected through pipelines.

Images