Film coating clamp for 3D curved glass

Abstract

The utility model discloses a film coating clamp for 3D (three-dimensional) curved glass, which is easy to take out the glass, is not easy to bend or break, does not need to be provided with a protective film so as to reduce the cost of consumables, and adopts a splitting structure to overcome the problems of glass corner cleaning and color variation so as to reduce overflow coating and improve the film coating quality, and comprises a jig assembly and a plugboard frame, the jig assembly comprises a plurality of single-hole jigs, mounting grooves are formed in the upper surfaces of the single-hole jigs, profiling supporting faces are formed in the inner bottom faces of the mounting grooves, a plurality of through holes which penetrate through the outer bottom faces of the single-hole jigs and communicate with the mounting grooves are formed in the profiling supporting faces at intervals, and high-temperature-resistant adhesive tape adheres to the outer bottom faces of the single-hole jigs. A bonding limiting part bonded with the back surface of the glass to be coated is formed on the high-temperature-resistant adhesive tape at the part corresponding to the through hole; a plurality of jig slots for embedding the single-hole jigs in a one-to-one correspondence manner are formed in the plugboard frame at intervals, and buckles are respectively arranged on two opposite sides of a notch of each jig slot; and the buckle is close to or away from the edge of the single-hole jig under the action of external force so as to press or release the single-hole jig.

Description

Technical Field

[0001] The utility model relates to the technical field of glass coating, in particular to a coating fixture for 3D curved glass. Background Art

[0002] After 3D glass is formed, it is often necessary to coat an AR film (Anti-Refletance, anti-reflection and anti-glare film) or an AF film (high-transparency and fingerprint-proof film) or an AG film (anti-glare protection film) on the glass surface to achieve the protection and modification of the glass surface. During the coating process of 3D glass, it is necessary to position the glass so as to accurately coat the film layer on the glass surface. At present, in the industry, 3D glass is mainly positioned by a profiling fixture, which specifically supports the glass through a profiling structure at the bottom, and a whole-circle profiling step is arranged around the profiling structure to block and protect the position of the glass body, so as to achieve the effect of coating the front surface of the glass while not coating the glass body.

[0003] When the glass is fixed on the fixture, it is mainly by attaching double-sided tape to the product position of the fixture to bond the glass, or by wrapping a protective film on the front of the fixture and attaching double-sided tape to the part corresponding to the product position of the fixture on the protective film to bond the glass. For the former, since double-sided tape is used to firmly bond the glass to overcome the centrifugal force of the turntable of the coating equipment, when the glass is taken out, it needs to be slowly peeled off at an extremely slow speed, and the difficulty coefficient of the employee's operation is relatively large, which is not conducive to mass production requirements, and glue marks are easily left on the glass surface; in addition, since the whole circle of the glass needs to be shielded, the side surface of the profiling step and the profiling support surface need to be perpendicular to each other, and the fixture is generally an integral structure with a large size, and only a three-axis machine tool can be used for processing. The 3D structure of the glass increases the difficulty of chamfering, so it is necessary to design a tool clearance groove on the side surface of the fixture, which causes the edge of the glass to be in a suspended state, and then causes poor overplating at the edge of the glass. For the latter, due to the stretchability of the film material, compared with the way of directly pasting the glass to the fixture, the glass can be taken out better, but there are still problems such as bending of the glass when it is taken out, and then glass breakage; furthermore, since the profiling structure of the fixture is a 3D structure, air bubbles will be formed at the step after film coating, and at the same time, the stretching is uneven at the rounded corners and turning points, forming creases. The film coating bubbles are unstable, which is easy to cause different colors at the edge of the glass, thereby affecting the quality of glass coating; in addition, due to the use of the protective film, the protective film needs to be cut when the product is taken out, and the protective film is a disposable consumable, which increases the coating cost of the glass. Summary of the Utility Model

[0004] Based on this, in view of the above deficiencies, it is necessary to provide a coating fixture for 3D curved glass that is easy to take out the glass and the glass is not easily bent or broken, does not require a protective film to reduce the consumable cost, and uses a split structure to overcome the problems of glass chamfering and different colors to reduce overplating defects and improve the coating quality.

[0005] A coating fixture for 3D curved glass, comprising:

[0006] A fixture assembly, the fixture assembly includes a plurality of single-hole fixtures. An installation groove for receiving the glass to be coated is formed on the upper surface of the single-hole fixture. The inner bottom surface of the installation groove forms a profiling support surface adapted to the back surface and the body shape of the glass to be coated. A plurality of through holes penetrating the outer bottom surface of the single-hole fixture and communicating with the installation groove are spaced apart on the profiling support surface. A high-temperature resistant tape is pasted on the outer bottom surface of the single-hole fixture. A paste limiting portion for bonding with the back surface of the glass to be coated is formed on the high-temperature resistant tape at a position corresponding to the through hole; and

[0007] An insertion plate frame, a plurality of fixture slots for respectively and correspondingly embedding each single-hole fixture are spaced apart on the insertion plate frame. At least one buckle is respectively arranged on two opposite sides of the mouth of the fixture slot; the buckle approaches or leaves the edge of the single-hole fixture under the action of an external force to press or release the single-hole fixture.

[0008] In one embodiment, the high-temperature resistant tape is a single-sided tape, and the surface of the high-temperature resistant tape that fits with the outer bottom surface of the single-hole fixture is the paste surface of the high-temperature resistant tape.

[0009] In one embodiment, the high-temperature resistant tape is a double-sided tape, the outer bottom surface of the single-hole fixture is a non-planar structure, and the thickness of each part of the high-temperature resistant tape is uniform.

[0010] In one embodiment, an avoidance notch penetrating the outer side surface of the single-hole fixture is formed on the upper surface of the single-hole fixture beside the installation groove, and a hand-held stopper is fixed at the avoidance notch.

[0011] In one embodiment, the insertion plate frame includes a frame arrangement plate, a head mounting plate fixedly connected to one end of the frame arrangement plate and used for mounting on a coating device, and a tail mounting plate fixedly connected to the other end of the frame arrangement plate and used for mounting on the coating device. Each of the fixture slots is arranged side by side on the frame arrangement plate, and the buckle is mounted on the frame arrangement plate.

[0012] In one embodiment, a first installation notch is formed on the head mounting plate, a second installation notch is formed on the tail mounting plate, a first installation convex portion is arranged at one end of the frame arrangement plate adjacent to the head mounting plate, and a second installation convex portion is arranged at one end of the frame arrangement plate adjacent to the tail mounting plate. The first installation convex portion is inserted into the first installation notch and is screwed to the head mounting plate, and the second installation convex portion is inserted into the second installation notch and is screwed to the tail mounting plate.

[0013] In one of the embodiments, a limit groove connected to the jig slot is opened on the edge of the jig slot on the upper surface of the frame arrangement plate, and two limit baffles arranged opposite to each other are fixed in the limit groove, a sliding installation area is formed between the two limit baffles, and a guide groove is provided on one side of the limit baffle located in the sliding installation area; the buckle is an inverted L-shaped structure, including a vertical part inserted into the sliding installation area and a horizontal part fixed at the top of the vertical part and protruding in the direction close to the jig slot, and guide blocks slidably embedded in the guide groove are provided on two opposite sides of the vertical part, and when the buckle approaches the single-hole jig, the lower surface of the horizontal part abuts against the edge of the upper surface of the single-hole jig to limit the position of the single-hole jig.

[0014] In one of the embodiments, a slot is provided on the bottom surface of the limiting slot, a plunger is inserted into the slot, the bottom of the plunger is elastically connected to the inner surface of the slot, and the top of the plunger extends out of the slot to form a ball head limiting portion; a first opening and closing hole slot and a second opening and closing hole slot are provided on the bottom surface of the buckle; the buckle releases the single-hole fixture when the ball head limiting portion of the plunger is embedded in the first opening and closing hole slot, and the buckle presses the single-hole fixture when the ball head limiting portion of the plunger is embedded in the second opening and closing hole slot;

[0015] The upper surface of the buckle is provided with a toggle groove.

[0016] In one of the embodiments, one end of the buckle is hinged to the edge of the fixture slot to form a hinge connection portion, and the other end of the buckle rotates around the hinge connection portion to tighten or release the edge of the single-hole fixture, and the portion of the buckle adjacent to the hinge connection portion is connected to the upper surface of the frame arrangement plate through a spring.

[0017] In one of the embodiments, a positioning notch corresponding to the buckle and embedded in the end of the buckle is opened on the edge of the single-hole fixture.

[0018] The coating fixture for 3D curved glass of the utility model is implemented, and the high temperature resistant tape is attached to the outer bottom surface of the single-hole fixture. While providing multi-point adhesion for the glass to be coated and realizing glass limiting, the glass can be removed by tearing off the high temperature resistant tape from the outer bottom surface of the single-hole fixture. When tearing off the high temperature resistant tape, the glass can be supported by the contoured support surface to avoid bending, deformation or cracking of the glass, which reduces the difficulty of removing the glass and can meet the mass production needs of glass coating; the method of gluing the outer bottom surface of the single-hole fixture is adopted to replace the setting of the protective film, which reduces the cost of consumables and coating, solves the problem of different colors of the glass edge caused by attaching the protective film, and improves the quality of glass coating; the structure of splitting the single-hole fixture and the plug-in plate frame is adopted. Compared with the integrated fixture, the part size of the single-hole fixture is reduced during processing, and it can adapt to various processing technologies such as five-axis processing and electric spark processing, so that the right angle of the bottom of the side wall shielded by the edge of the glass can be cleared, and there is no need to design a tool avoidance groove on the edge of the single-hole fixture, thereby solving the problem of poor overflow coating on the edge of the glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic structural view of a coating fixture in an embodiment of the present utility model;

[0020] Figure 2 FIG. 2 is a schematic structural view of a single-hole fixture in an embodiment of the present utility model;

[0021] Figure 3 FIG. 3 Figure 2 is a schematic partial cross-sectional structural view of the single-hole fixture in the embodiment shown;

[0022] Figure 4 FIG. 4 is a schematic structural view of an insertion plate frame in an embodiment of the present utility model;

[0023] Figure 5 FIG. 5 is an exploded view of the insertion plate frame in an embodiment of the present utility model;

[0024] Figure 6 FIG. 6 Figure 5 is a schematic enlarged partial structural view of part A in the embodiment shown;

[0025] Figure 7 FIG. 7 is a schematic cross-sectional structural view of a buckle in a state on a frame layout plate in an embodiment of the present utility model;

[0026] Figure 8 FIG. 8 is a schematic cross-sectional structural view of the buckle in another state on the frame layout plate in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Please refer to Figure 1 , the present utility model discloses a coating fixture 10 for 3D curved glass that is easy to take out the glass, the glass is not easily bent or broken, there is no need to set a protective film to reduce the consumable cost, and a split structure is adopted to overcome the problems of glass corner cleaning and different colors to reduce overplating defects and improve the coating quality. The coating fixture includes a fixture assembly 100 and an insertion plate frame 200. The fixture assembly 100 is used to realize the clamping of the glass to be coated, and the insertion plate frame 200 is used to integrally install multiple pieces of glass to be coated on the coating equipment to realize the coating operation of multiple pieces of glass at one time.

[0029] Specifically, in combination with Figure 1-6 , the fixture assembly 100 includes a plurality of single-cavity fixtures 110, and each single-cavity fixture 110 is used for clamping a piece of glass to be coated. An installation groove 111 for receiving the glass to be coated is formed on the upper surface of the single-cavity fixture 110, and a profiling support surface 112 adapted to the back surface and the body shape of the glass to be coated is formed on the inner bottom surface of the installation groove 111. In this way, after the glass to be coated is placed in the installation groove 111, the back surface of the glass is completely attached to the profiling support surface 112, so as to increase the contact area between the two and improve the stability of the single-cavity fixture 110 in supporting the glass. A plurality of through holes 113 penetrating the outer bottom surface of the single-cavity fixture 110 and communicating with the installation groove 111 are spaced apart on the profiling support surface 112. A high-temperature resistant tape 120 is pasted on the outer bottom surface of the single-cavity fixture 110, and a paste limiting portion 121 for bonding with the back surface of the glass to be coated is formed on the high-temperature resistant tape 120 at a position corresponding to the through hole 113.

[0030] For the coating operation of large and brittle glass, when installing the glass, the coating product (glass) generally needs to be fully coated on the entire front surface without any obstruction. This requires that the fixture cannot be clamped in a pressing manner, but can only be fixed by an adsorption and pasting method. And because the inertia of the glass is very large, it is necessary to use tapes and film materials with very high viscosity to paste the glass. When removing the glass product, the glass bends under the pulling force of the human hand and the adhesive force of the tape. When the strength exceeds the yield point, the glass will break. To solve this problem, in this embodiment, the through hole 113 provides a channel for bonding between the back surface of the glass and the high-temperature resistant tape 120. After the high-temperature resistant tape 120 is pasted on the outer bottom surface of the single-cavity fixture 110, the portion of the high-temperature resistant tape 120 corresponding to the through hole 113 bends at the through hole 113 and forms a paste limiting portion 121 protruding from the profiling support surface 112, so as to bond the back surface of the glass and achieve multi-point paste limiting of the glass. When the high-temperature resistant tape 120 is attached to the outer bottom surface of the single-cavity fixture 110, there is no need to set a protective film, which solves the problem of increased consumable cost caused by setting the protective film. In addition, in this embodiment, the high-temperature resistant tape 120 is attached to the outer bottom surface of the single-cavity fixture 110. When removing the glass, there is no need to grasp the glass and tear the tape. The profiling support surface 112 can be used to support the glass to limit the glass, and then the tape can be separated from the glass when pulling the tape. Only the portion of the glass corresponding to the paste limiting portion 121 is subjected to the pulling force of the high-temperature resistant tape 120, which can avoid the bending deformation of the glass caused by being grasped, reduce the difficulty of removing the glass and meet the mass production requirements; at the same time, the stress condition of the glass avoids the edge position where defects are most likely to occur, and solves the problem of glass breakage when removing the glass.

[0031] A plurality of jig slots 210 for respectively and correspondingly embedding each single-cavity jig 110 are spaced apart on the plugboard frame 200. At least one buckle 220 is provided on each of the two opposite sides of the notch of the jig slot 210. The buckle 220 approaches or leaves the edge of the single-cavity jig 110 under an external force to clamp or release the single-cavity jig 110. That is to say, in this embodiment, the single-cavity jig 110 and the plugboard frame 200 adopt a split design, and the two are independently processed and assembled. In this way, the single-cavity jig 110 for clamping the glass has a small size and can adapt to various processing technologies such as five-axis machining or electric discharge machining, so that the bottom right angle of the side wall shielded by the glass edge can be chamfered, so as to solve problems such as glass edge overplating and different colors. Since the single-cavity jig 110 and the plugboard frame 200 adopt a split structure and are suitable for off-line clamping, after the coating is completed, the single-cavity jigs 110 on the plugboard frame 200 can be removed in batches, and the operator can operate off-line to take out the glass and clamp the new glass to be coated, without waiting for the fixture to take out the glass and then applying glue. Instead, the glue is applied and the glass is assembled off-line during the operation time of the coating equipment, the operation is simpler, the installation time can be saved, and the coating production efficiency can be improved. In addition, in this embodiment, after each single-cavity jig 110 is embedded in the jig slot 210, it is limited by the buckle 220 to realize the installation of the single-cavity jig 110 on the plugboard frame 200. There is no need to install screws. The single-cavity jig 110 is simply clamped, greatly improving the installation time of the single-cavity jig 110, realizing the rapid positioning of the single-cavity jig 110 and the glass, and improving the production efficiency.

[0032] In one embodiment, the high-temperature resistant tape 120 is a single-sided tape, and the surface of the high-temperature resistant tape 120 that fits the outer bottom surface of the single-cavity jig 110 is the adhesive surface of the high-temperature resistant tape 120. In this embodiment, a single-sided tape is selected as the high-temperature resistant tape 120, and the surface of the high-temperature resistant tape 120 that contacts the bottom surface of the jig slot 210 is the non-adhesive surface. In this way, after the buckle 220 is opened, only the single-cavity jig 110 needs to be taken out of the jig slot 210, reducing the difficulty of taking out the single-cavity jig 110. In another embodiment, the high-temperature resistant tape 120 is a double-sided tape, the outer bottom surface of the single-cavity jig 110 is a non-planar structure, and the thickness of each part of the high-temperature resistant tape 120 is uniform. That is to say, when the high-temperature resistant tape 120 is a double-sided tape, the outer bottom surface of the single-cavity jig 110 is uneven. In this way, after the high-temperature resistant tape 120 is attached to the outer bottom surface of the single-cavity jig 110 and the single-cavity jig 110 is placed in the jig slot 210, the single-cavity jig 110 also fits the bottom surface of the jig slot 210 by means of multi-point pasting, improving the positioning stability of the single-cavity jig 110 in the jig slot 210 while facilitating the removal of the single-cavity jig 110 from the jig slot 210.

[0033] In one embodiment, an avoidance notch 114 penetrating the outer side surface of the single-hole fixture 110 is formed on the upper surface of the single-hole fixture 110 beside the installation groove 111, and a hand-held stopper 115 is fixed at the avoidance notch 114. Further preferably, the hand-held stopper 115 is located above the single-hole fixture 110 and straddles the avoidance notch 114, and the hand-held stopper 115 is fixedly connected to the upper surface of the single-hole fixture 110 by screws. In this way, an operator can insert a finger or a tool into the avoidance notch 114 and abut against the hand-held stopper 115 to grab the hand-held stopper 115, and it is convenient to place the single-hole fixture 110 in the plug-in board frame 200, avoiding the single-hole fixture 110 from falling or vibrating during the placement process to prevent the glass from being damaged.

[0034] The plugboard frame 200 includes a frame arrangement board 230, a head mounting board 240 fixedly connected to one end of the frame arrangement board 230 and used for mounting on the coating equipment, and a tail mounting board 250 fixedly connected to the other end of the frame arrangement board 230 and used for mounting on the coating equipment. Each jig slot 210 is arranged side by side on the frame arrangement board 230, and the buckle 220 is installed on the frame arrangement board 230. In this embodiment, the head mounting board 240, the tail mounting board 250 and the frame arrangement board 230 together form the main body of the coating jig to provide the structural features required for machine table transportation and fixation. A plurality of grasping slots or holes are respectively formed on the head mounting board 240 and the tail mounting board 250 so that the operator can grasp the plugboard frame 200 when fixing the plugboard frame 200 to the coating equipment. Further, a first mounting notch 241 is formed on the head mounting board 240, a second mounting notch 251 is formed on the tail mounting board 250, a first mounting protrusion 231 is provided at one end of the frame arrangement board 230 adjacent to the head mounting board 240, and a second mounting protrusion 232 is provided at one end of the frame arrangement board 230 adjacent to the tail mounting board 250. The first mounting protrusion 231 is inserted into the first mounting notch 241 and is screwed to the head mounting board 240, and the second mounting protrusion 232 is inserted into the second mounting notch 251 and is screwed to the tail mounting board 250. Thus, through the cooperation of the first mounting protrusion 231 and the first mounting notch 241 and the cooperation of the second mounting protrusion 232 and the second mounting notch 251, the primary positioning of the frame arrangement board 230 and the head mounting board 240 and the primary positioning of the frame arrangement board 230 and the tail mounting board 250 are realized. Subsequently, through the screw connection between the first mounting protrusion 231 and the head mounting board 240 and the screw connection between the second mounting protrusion 232 and the tail mounting board 250, the secondary positioning of the frame arrangement board 230 and the head mounting board 240 and the secondary positioning of the frame arrangement board 230 and the tail mounting board 250 are realized, so as to reduce the assembly difficulty of the head mounting board 240, the tail mounting board 250 and the frame arrangement board 230. In addition, it should be emphasized that in this embodiment, the connection parts between the first mounting protrusion 231 and the head mounting board 240 and between the second mounting protrusion 232 and the tail mounting board 250 are both connected by a plurality of screws along the thickness direction and the width direction of the frame arrangement board 230 to improve the connection stability of the head mounting board 240, the tail mounting board 250 and the frame arrangement board 230.

[0035] Please combine with Figure 4-8, in one embodiment, a limiting groove 233 communicating with the jig slot 210 is formed on the upper surface of the frame arrangement plate 230 at the edge of the jig slot 210. Two relatively arranged limiting baffles 234 are fixed in the limiting groove 233. A sliding installation area is formed between the two limiting baffles 234, and a guiding groove 235 is provided on one side of the limiting baffle 234 located in the sliding installation area; the buckle 220 has an inverted L-shaped structure, including a vertical portion 221 inserted into the sliding installation area and a horizontal portion 222 fixed at the top of the vertical portion 221 and protruding towards the jig slot 210. Guiding blocks 223 slidably embedded in the guiding groove 235 are provided on two opposite sides of the vertical portion 221. When the buckle 220 approaches the single-hole jig 110, the lower surface of the horizontal portion 222 abuts against the edge of the upper surface of the single-hole jig 110 to limit the position of the single-hole jig 110. When the buckle 220 slides until the horizontal portion 222 completely leaves the single-hole jig 110, the limit of the buckle 220 on the single-hole jig 110 is released, so as to take out the single-hole jig 110. In this embodiment, the limiting baffle 234 is fixed in the limiting groove 233 by screws. In other embodiments, the limiting baffle 234 can also be integrally formed with the frame arrangement plate 230. That is to say, the limiting baffle 234 can form a part of the frame arrangement plate 230, or the guiding groove 235 can be opened on two opposite inner walls of the limiting groove 233 to obtain the limiting baffle 234 for limiting the buckle 220. In this embodiment, the guiding groove 235 is opened on the inner wall of the limiting baffle 234, and the buckle 220 is designed in an inverted L-shaped structure. The guiding blocks 223 are arranged on the side wall of the buckle 220. Through the mutual restraint of the guiding groove 235 and the guiding blocks 223, on the one hand, the limit of the buckle 220 is realized, avoiding the buckle 220 falling off from above the limiting groove 233 and ensuring the reliability of the limit of the buckle 220 on the single-hole jig 110; on the other hand, the sliding path of the buckle 220 can also be limited, that is, the limiting baffle 234 provides a sliding track for the buckle 220 to avoid the buckle 220 shaking during the sliding process.

[0036] Further, in this embodiment, a slot 236 is provided on the bottom surface of the limiting slot 233, a plunger 237 is inserted in the slot 236, the bottom of the plunger 237 is elastically connected to the inner surface of the slot 236, and the top of the plunger 237 extends out of the slot 236 to form a ball head limiting portion; a first opening and closing hole slot 224 and a second opening and closing hole slot 225 are provided on the bottom surface of the buckle 220; the buckle 220 releases the single-hole fixture 110 when the ball head limiting portion of the plunger 237 is embedded in the first opening and closing hole slot 224, and the buckle 220 presses the single-hole fixture 110 when the ball head limiting portion of the plunger 237 is embedded in the second opening and closing hole slot 225. Preferably, a compression spring is sleeved on the plunger 237, and the bottom end of the compression spring abuts against the bottom surface of the slot 236. By cooperating with the ball head limiting part of the plunger 237 and the first opening and closing hole groove 224 and the second opening and closing hole groove 225, the opening position and the closing position of the buckle 220 can be limited. When the buckle 220 moves to the point where the ball head limiting part is embedded in the first opening and closing hole groove 224, the buckle 220 completely leaves the single-hole fixture 110 so that the single-hole fixture 110 can be taken out; when the ball head limiting part of the plunger 237 is embedded in the second opening and closing hole groove 225, the buckle 220 completely presses the single-hole fixture 110. In this way, the problem of the buckle 220 being impacted by the inner wall of the limiting groove 233 or the buckle 220 impacting the single-hole fixture 110 due to the buckle 220 moving too far can be prevented, thereby extending the service life of the coating fixture. In this embodiment, the plunger 237 with a ball head stopper is combined with a spring, and the plunger 237 with a ball head stopper is inserted into the hole groove on the bottom surface of the buckle 220 to achieve rapid positioning and fastening of the buckle 220. In addition, in this embodiment, a toggle groove 226 is provided on the upper surface of the buckle 220, and the toggle groove 226 provides an operating part for the operator to grasp the buckle 220, so as to avoid slipping when toggling the buckle 220, thereby reducing the difficulty of taking and placing the single-hole fixture 110.

[0037] In another embodiment, one end of the buckle 220 is hingedly connected to the edge of the fixture slot 210 to form a hinge connection portion, and the other end of the buckle 220 rotates around the hinge connection portion to press or release the edge of the single-hole fixture 110, and the portion of the buckle 220 adjacent to the hinge connection portion is connected to the upper surface of the frame arrangement plate 230 through a spring. In this way, the buckle 220 can be rotated to make the lower surface of the buckle 220 press the edge of the single-hole fixture 110, or the buckle 220 can be completely separated from the single-hole fixture 110, so as to achieve the positioning or release of the single-hole fixture 110.

[0038] It should also be noted that in one embodiment, a positioning notch 116 corresponding to the buckle 220 and embedding the end of the buckle 220 is provided at the edge of the single-hole jig 110. The positioning notch 116 provides a limiting portion for the end of the buckle 220, so that when the buckle 220 is operated, the buckle 220 can be accurately pressed on the single-hole jig 110. In addition, in this embodiment, the plug-in board frame 200 is processed from steel. Its hardness, strength are improved through a heat treatment process, and stress is eliminated, so that the plug-in board frame 200 will not be deformed due to internal stress when used in an environment of 200°C, and it can maintain high strength under the condition of meeting the weight requirement. In the coating operation, first, a high-temperature resistant tape 120 is attached to the back surface of the single-hole jig 110, and glass is installed in the installation groove 111; the single-hole jig 110 is installed in the plug-in board frame 200, and the buckle 220 is pressed down to lock. Subsequently, the coating fixture as a whole is hung in the machine tool by a manipulator for electroplating processing; finally, the coating fixture is taken out, the single-hole jig 110 is disassembled, the high-temperature resistant tape 120 is torn off, and the glass is taken out. The glass is placed in an insertion rack or a blister tray, and the above operations are repeated until all the glasses to be coated are completed with the coating operation.

[0039] For the coating fixture 10 of the above-mentioned 3D curved glass, the high-temperature resistant tape 120 is attached to the outer bottom surface of the single-hole jig 110. While providing multi-point adhesion for the glass to be coated and realizing the limitation of the glass, only by tearing off the high-temperature resistant tape 120 from the outer bottom surface of the single-hole jig 110 can the glass be taken down. When tearing off the high-temperature resistant tape 120, the support of the glass by the profiling support surface 112 can avoid the glass from being bent, deformed or broken, reducing the difficulty of taking out the glass and meeting the mass production requirements of glass coating; the method of attaching the glue to the outer bottom surface of the single-hole jig 110 is used to replace the setting of the protective film, reducing the consumable cost and the coating cost, and solving the problem of different colors at the glass edge caused by attaching the protective film, improving the quality of glass coating; the structure of splitting the single-hole jig 110 and the plug-in board frame 200 is adopted. Compared with the integrated fixture, the part size during the processing of the single-hole jig 110 is reduced, and it can adapt to various processing technologies such as five-axis machining and electric discharge machining, enabling the bottom right angle of the side wall shielded by the glass edge to be chamfered without designing a tool clearance groove at the edge of the single-hole jig 110, thus solving the problem of poor overcoating at the glass edge.

[0040] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0041] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A coating fixture for 3D curved glass, characterized in that: include: A fixture assembly, the fixture assembly comprising a plurality of single-hole fixtures, the upper surface of the single-hole fixture is provided with a mounting groove for accommodating the glass to be coated, the inner bottom surface of the mounting groove forms a contoured support surface adapted to the back and body shape of the glass to be coated, the contoured support surface is provided with a plurality of through holes penetrating the outer bottom surface of the single-hole fixture and communicating with the mounting groove, the outer bottom surface of the single-hole fixture is adhered with a high-temperature resistant tape, and the high-temperature resistant tape is formed with a pasting limit portion for bonding to the back of the glass to be coated at a position corresponding to the through hole; and A plug-in board frame is provided with a plurality of fixture slots for correspondingly embedding the single-hole fixtures at intervals, and at least one buckle is provided on two opposite sides of the fixture slot notch; the buckle approaches or leaves the edge of the single-hole fixture under the action of external force to compress or release the single-hole fixture.

2. The 3D curved glass coating fixture according to claim 1, characterized in that: The high temperature resistant tape is a single-sided tape, and the side of the high temperature resistant tape that is in contact with the outer bottom surface of the single-hole fixture is the adhesive surface of the high temperature resistant tape.

3. The coating fixture for 3D curved glass according to claim 1, characterized in that: The high temperature resistant tape is a double-sided tape, the outer bottom surface of the single-hole fixture is a non-planar structure, and the thickness of each part of the high temperature resistant tape is uniform.

4. The 3D curved glass coating fixture according to claim 1, characterized in that: The upper surface of the single-hole fixture is provided with a avoidance notch penetrating through the outer side of the single-hole fixture beside the mounting groove, and a hand-held stopper is fixed at the avoidance notch.

5. The 3D curved glass coating fixture according to claim 1, characterized in that: The plug-in board frame includes a frame arrangement plate, a head mounting plate fixedly connected to one end of the frame arrangement plate and used for installation on the coating equipment, and a tail mounting plate fixedly connected to the other end of the frame arrangement plate and used for installation on the coating equipment. The fixture slots are arranged side by side on the frame arrangement plate, and the buckles are installed on the frame arrangement plate.

6. The 3D curved glass coating fixture according to claim 5, characterized in that: A first mounting notch is provided on the head mounting plate, a second mounting notch is provided on the tail mounting plate, a first mounting protrusion is provided on one end of the frame arrangement plate adjacent to the head mounting plate, and a second mounting protrusion is provided on one end of the frame arrangement plate adjacent to the tail mounting plate, the first mounting protrusion is inserted into the first mounting notch and connected to the head mounting plate with screws, and the second mounting protrusion is inserted into the second mounting notch and connected to the tail mounting plate with screws.

7. The 3D curved glass coating fixture according to claim 5, characterized in that: The upper surface of the frame arrangement plate is provided with a limit groove connected to the fixture slot at the edge of the fixture slot, and two limit baffles arranged opposite to each other are fixed in the limit groove, a sliding installation area is formed between the two limit baffles, and a guide groove is provided on one side of the limit baffle located in the sliding installation area; the buckle is an inverted L-shaped structure, including a vertical part inserted into the sliding installation area and a horizontal part fixed at the top of the vertical part and protruding in the direction close to the fixture slot, and guide blocks slidably embedded in the guide groove are provided on two opposite sides of the vertical part, and when the buckle approaches the single-hole fixture, the lower surface of the horizontal part abuts against the edge of the upper surface of the single-hole fixture to limit the position of the single-hole fixture.

8. The 3D curved glass coating fixture according to claim 7, characterized in that: The bottom surface of the limiting groove is provided with a slot, a plunger is inserted into the slot, the bottom of the plunger is elastically connected to the inner surface of the slot, and the top of the plunger extends out of the slot to form a ball head limiting portion; the bottom surface of the buckle is provided with a first opening and closing hole slot and a second opening and closing hole slot; the buckle releases the single-hole fixture when the ball head limiting portion of the plunger is embedded in the first opening and closing hole slot, and the buckle presses the single-hole fixture when the ball head limiting portion of the plunger is embedded in the second opening and closing hole slot; The upper surface of the buckle is provided with a toggle groove.

9. The 3D curved glass coating fixture according to claim 5, characterized in that: One end of the buckle is hinged to the edge of the fixture slot to form a hinge connection part, and the other end of the buckle rotates around the hinge connection part to tighten or release the edge of the single-hole fixture, and the part of the buckle adjacent to the hinge connection part is connected to the upper surface of the frame arrangement plate through a spring.

10. The 3D curved glass coating fixture according to claim 1, characterized in that: The edge of the single-hole fixture is provided with a positioning notch corresponding to the buckle and embedded with the end of the buckle.

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