Glass blind hole clamping jig

Abstract

The utility model discloses a glass blind hole clamping jig. The glass blind hole clamping jig comprises a coating clamp and a feeding and discharging device, a glass placing plate is arranged on the film coating clamp and is of a profiling groove structure, the inner wall of a profiling groove is attached to the bottom and the side edge outline of glass, an elastic pressing mechanism is arranged in the glass placing plate and comprises an elastic lantern ring, and the outer diameter of the elastic lantern ring in the non-pressure state is smaller than the inner diameter of a glass blind hole. The coating clamp applies pressure to the inner wall of the glass blind hole through the elastic lantern ring so as to press and fix the glass; the feeding and discharging device comprises a clamp main body support used for placing a film coating clamp, a jacking mechanism is fixedly installed on the clamp main body support, and the jacking mechanism abuts against the elastic pressing mechanism. Glass can be firmly clamped, and the glass is effectively prevented from being damaged by pressing; and the glass is positioned and the side edge of the glass is shielded by using the profiling groove, so that the convenience of taking and placing the glass is improved, and overflow plating is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass processing technical field especially is related to a glass blind hole clamping fixture. BACKGROUND

[0002] The existing glass processing coating adopts the scheme of pasting the whole surface adhesive protective film, such as Figure 1 and Figure 2 As shown, the recess shielding protective film 2 is pasted in the recess of the glass 1, the high-temperature adhesive protective film 3 is pasted on the fixture faceplate 5 through the high-temperature double-sided adhesive 4, then the glass 1 is fixed through the adhesion of the adhesive protective film 3, next, the glass 1 is coated, and the glass is separated from the adhesive protective film 3 after the coating is finished. This scheme has many defects: the development cost and consumable cost of the adhesive protective film material are very large; the adhesive substance on the adhesive protective film adheres to the glass surface and cannot be removed to form a large proportion of appearance defects; it is very difficult to separate the glass from the adhesive protective film, and improper operation will cause the glass to break. SUMMARY

[0003] The utility model aims at solving the technical problems that the adhesive protective film is difficult to remove and the glass is easy to damage in glass processing coating, and proposes a glass blind hole clamping fixture.

[0004] The technical problem of the utility model is solved through the following technical scheme:

[0005] A glass blind hole clamping fixture, comprising a coating fixture, an up-down device,

[0006] The coating fixture is provided with a glass placing plate, the glass placing plate is provided as a profiling groove structure, the inner wall of the profiling groove is matched with the bottom and side edge contour of the glass, the glass placing plate is provided with an elastic pressing mechanism, the elastic pressing mechanism comprises an elastic sleeve ring, the outer diameter of the elastic sleeve ring is smaller than the inner diameter of the glass blind hole in the state without pressure, and the coating fixture applies pressure to the inner wall of the glass blind hole through the elastic sleeve ring to press and fix the glass;

[0007] The up-down device comprises a fixture main body support for placing the coating fixture, the fixture main body support is fixedly provided with a jacking mechanism, the jacking mechanism abuts against the elastic pressing mechanism, and the jacking mechanism applies a pushing force to the elastic pressing mechanism to eliminate the pressure applied by the elastic sleeve ring to the inner wall of the glass blind hole.

[0008] In some embodiments, the following technical features are further included:

[0009] The elastic compression mechanism further comprises a glass bead screw, a first baffle, a first pressing plate, a pressure pin, and a fixing screw; the glass bead screw is fixedly installed on the first baffle and abuts against the first pressing plate; the first baffle abuts against the jacking mechanism; the bottom of the elastic sleeve ring is provided with a boss; the first pressing plate is provided with an annular groove matched with the boss; the elastic sleeve ring is sleeved outside the pressure pin; the bottom of the pressure pin abuts against the first baffle; the top of the pressure pin extends around to form a protruding portion; the outer diameter of the pressure pin at the protruding portion is greater than the inner diameter of the elastic sleeve ring in a natural state, and the outer diameter of the pressure pin at the protruding portion is smaller than the inner diameter of the glass blind hole; and the fixing screw is fixedly connected with the pressure pin through the first baffle.

[0010] In some embodiments, the elastic compression mechanism further comprises a stopper, a push block, a push head, a sliding block, a spring, and a spring stopper; the stopper is provided with a recess; the spring stopper is fixedly connected outside the recess; the push block, the sliding block, and the spring are sequentially connected inside the recess from inside to outside; the push block abuts against the inside of the stopper; the spring abuts against the spring stopper; the recess is provided with a sliding rail matched with the sliding block; the push head is fixedly connected to the sliding block; the elastic sleeve ring is sleeved outside the push head; and the push block is fixedly connected to the jacking mechanism.

[0011] In some embodiments, the clamp body support comprises a bottom plate provided with at least four supporting columns, and the supporting columns are provided with a clamp placing plate.

[0012] In some embodiments, the edge of the clamp placing plate is provided with a second baffle.

[0013] In some embodiments, the jacking mechanism comprises a second pressing plate, a pressing block, and a first cylinder; one end of the pressing block is fixedly arranged on the second pressing plate; the other end of the pressing block abuts against the first baffle; the cylinder body of the first cylinder is fixedly arranged on the bottom plate; and the piston rod of the first cylinder abuts against the second pressing plate.

[0014] In some embodiments, the second pressing plate is fixedly provided with an oil buffer.

[0015] In some embodiments, the clamp placing plate is further provided with a clamping mechanism; the clamping mechanism comprises a hook and a second cylinder; the hook is arranged at the edge of the clamp placing plate; the side surface of the coated clamp is provided with a groove matched with the hook; and the second cylinder is fixedly arranged on the second pressing plate and used to drive the hook to open and close.

[0016] In some embodiments, the first cylinder is provided with a first throttle valve, and the second cylinder is provided with a second throttle valve.

[0017] In some embodiments, the first cylinder is a three-axis guided cylinder, and the second cylinder is a two-axis guided cylinder.

[0018] The beneficial effects of this utility model compared with the prior art include:

[0019] This utility model proposes a glass blind hole clamping fixture, which, through the technical features of a glass placement plate, a contoured groove on the glass placement plate, an elastic pressing mechanism inside the glass placement plate, an elastic collar, a loading and unloading device including a fixture main support, and a lifting mechanism fixedly installed on the fixture main support, enables the glass to be clamped and fixed using a purely mechanical structure. This eliminates the need for a protective film throughout the glass coating process, effectively reducing the risk of glass damage after coating. Furthermore, the pressure applied to the inner wall of the glass blind hole by the elastic collar not only firmly clamps the glass but also effectively prevents damage. Additionally, the contoured groove positions the glass and shields its sides, increasing the convenience of glass handling and effectively reducing over-coating.

[0020] In addition, some embodiments also have the following beneficial effects:

[0021] This invention uses glass ball screws to provide clamping force, which not only allows the spring force to be adjusted by adjusting the screw pressing amount, but also facilitates maintenance and replacement after the spring force fails.

[0022] Other beneficial effects of the embodiments of this utility model will be further described below. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a grooved protective film pasted before glass coating in the prior art;

[0024] Figure 2 This is a schematic diagram of a fixture structure for glass processing and coating in the prior art;

[0025] Figure 3 This is an overall structural diagram of a glass blind hole clamping fixture according to an embodiment of the present invention;

[0026] Figure 4 This is an exploded structural diagram of a glass blind hole clamping fixture according to an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the coating fixture in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the loading and unloading device in an embodiment of this utility model;

[0029] Figure 7This is a cross-sectional schematic diagram of an elastic pressing mechanism according to an embodiment of this utility model;

[0030] Figure 8 This is a partial enlarged view of the embodiment of the present invention before the pressure pin opens the elastic rubber sleeve;

[0031] Figure 9 This is a partial enlarged view of the elastic sleeve after the pressure pin has opened in an embodiment of this utility model;

[0032] Figure 10a and 10b This is an enlarged cross-sectional view of the hook in an embodiment of this utility model;

[0033] Figure 11a This is a cross-sectional view of the lifting mechanism before the first cylinder lifts in this embodiment of the present invention;

[0034] Figure 11b This is a cross-sectional view of the lifting mechanism after the first cylinder has been lifted in this embodiment of the present invention;

[0035] Figure 12 This is a flowchart of the glass clamping process before coating in this embodiment of the present invention;

[0036] Figure 13 This is a flowchart of the process of removing the glass after coating in an embodiment of this utility model;

[0037] Figure 14 This is an exploded structural diagram of another elastic clamping mechanism in an embodiment of this utility model;

[0038] Figure 15 This is an overall structural diagram of another elastic clamping mechanism in this utility model embodiment;

[0039] Figure 16 This is a schematic diagram illustrating the steps of clamping glass before coating using another elastic clamping mechanism in this embodiment of the present invention;

[0040] Figure 17 This is a schematic diagram of the steps for removing the glass after coating using another elastic pressing mechanism in an embodiment of this utility model;

[0041] Reference numerals: 1. Glass; 2. Groove shielding protective film; 3. Adhesive protective film; 4. High-temperature double-sided adhesive; 5. Fixture panel; 6. Coating fixture; 61. Glass placement plate; 62. Elastic collar; 621. Boss; 63. Pressure pin; 631. Protrusion; 64. First pressure plate; 65. First baffle; 66. Glass ball screw; 67. Stop; 68. Push block; 69. Push head; 610. Slider; 611. Spring; 612. Spring stop block; 7. Loading / unloading device; 71. Base plate; 72. Support column; 73. Fixture placement plate; 74. Second baffle; 75. Second pressure plate; 76. Pressure block; 77. First cylinder; 78. Hydraulic buffer; 79. Hook; 710. Second cylinder. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of this utility model.

[0043] It should be noted that when a component is referred to as "fixed" or "set" on another component, it can be directly on or indirectly on the other component. When a component is referred to as "connected" to another component, it can be directly connected to or indirectly connected to the other component. Furthermore, a connection can be used for fixing, coupling, or communication.

[0044] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] The main reasons for the defects in existing glass processing coating solutions are as follows:

[0047] 1. Because a specific (high temperature and special shape) protective film needs to be pasted on the entire surface, the protective film is scrapped after the coating is completed, and the development cost and consumable cost of the protective film material are very high;

[0048] 2. Because the adhesive substances on the protective film adhere to the glass surface after being exposed to high temperatures, they cannot be removed, resulting in a large proportion of surface defects.

[0049] 3. Because the adhesive strength of the protective film needs to be greater than the centrifugal force during the glass coating process to fix the glass, it is difficult to remove the glass, and improper operation will cause the glass to break.

[0050] like Figures 3-5 As shown in the figure, the glass blind hole clamping fixture provided in this embodiment of the utility model includes two parts: a coating clamp 6 and a loading / unloading device 7. The coating clamp 6 is provided with multiple glass placement plates 61, each with a contoured groove structure for positioning and arranging the glass, protecting the glass sides, and reducing coating overflow. The inner wall of the contoured groove in the glass placement plate 61 fits against the bottom and side contours of the glass. An elastic pressing mechanism is provided within the glass placement plate 61, including an elastic collar 62. The outer diameter of the elastic collar 62 in the unpressurized state is smaller than the inner diameter of the glass blind hole. The coating clamp 6 applies pressure to the inner wall of the glass blind hole through the elastic collar 62 to clamp and fix the glass. The loading / unloading device 7 includes a clamp main support for placing the coating clamp. A lifting mechanism is fixedly installed on the clamp main support, abutting against the elastic pressing mechanism. The lifting mechanism applies a pushing force to the elastic pressing mechanism to eliminate the pressure applied by the elastic collar 62 to the inner wall of the glass blind hole. The coating fixture 6 is used to fix the glass and clamp it onto the coating equipment for coating. The loading and unloading device 7 releases the pressure of the elastic collar 62, so that its outer diameter is reduced to be smaller than the glass aperture after reset, thereby picking up and placing glass products.

[0051] Specifically, such as Figures 7-9As shown, the elastic clamping mechanism includes a glass ball screw 66, a first baffle 65, a pressure pin 63, and a first pressure plate 64, which are connected and fixed by fixing screws. The glass ball screw 66 is fixedly installed on the first baffle 65 and abuts against the first pressure plate 64; the first baffle 65 abuts against the lifting mechanism, the bottom of the elastic collar 62 is provided with a boss 621, and the first pressure plate 64 is provided with an annular groove that mates with the boss 621; the elastic collar 62 is sleeved on the outside of the pressure pin 63, the bottom of the pressure pin 63 abuts against the first baffle 65, and the top of the pressure pin 63 extends around to form a trapezoidal protrusion 631. The outer diameter of the pressure pin 63 at the trapezoidal protrusion 631 is larger than the inner diameter of the elastic collar 62 in its natural state, and the outer diameter of the pressure pin 63 at the protrusion 631 is smaller than the inner diameter of the glass blind hole; the fixing screw passes through the first baffle 65 and is fixedly connected to the pressure pin 63. The ball head elasticity of the glass ball screw 66 is converted into pressure to compress the first pressure plate 64 through the clamping structure; the first baffle 65 is used to install the glass ball screw 66, and the pressure of the coating clamp 6 is adjusted by adjusting the screw 66 pressing in; the pressure pin 63 is used to compress and fix the glass 1 after the elastic collar 62 is deformed; the diameter of the elastic collar 62 is smaller than the glass hole diameter when there is no pressure, which makes it easy to put in and take out; after being compressed and elastically deformed, it compresses and fixes the glass 1; the first pressure plate 64 presses and fixes the elastic collar 62 on the protrusion 621 of the elastic collar 62, and restricts the movement space of the elastic collar 62 to achieve the compression effect.

[0052] In a preferred embodiment, the loading and unloading device 7 includes a clamping main support, a clamping mechanism, and a lifting mechanism, and the sequential operation of the clamping mechanism and the lifting mechanism is controlled by a time relay or a PLC.

[0053] In a preferred embodiment, such as Figure 6As shown, the fixture main support includes a base plate 71, at least four support columns 72 on the base plate 71, and a fixture placement plate 73 on the support columns 72. A second baffle 74 is provided at the edge of the fixture placement plate 73 and is fixed by screws. The fixture placement plate 73 is used to place the coating fixture 6, and the second baffle 74 is used to position the coating fixture 6. The lifting mechanism includes a first cylinder 77, a second pressure plate 75, a pressure block 76, and a hydraulic buffer 78. One end of the pressure block 76 is fixedly mounted on the second pressure plate 75, and the other end of the pressure block 76 abuts against the first baffle 65. The cylinder body of the first cylinder 77 is fixedly mounted on the base plate 71, and the piston rod of the first cylinder 77 abuts against the second pressure plate 75. A first throttle valve is provided on the first cylinder 77 to adjust the operating speed of the first cylinder 77. A hydraulic buffer 78 is fixedly installed on the second pressure plate 75. The hydraulic buffer 78 buffers and protects the pressure block 76 so that it slowly contacts the coating fixture 6, avoiding damage to the coating fixture 6. The function of the lifting mechanism is to hold the spring of the first baffle 65 of the coating fixture 6 and tighten the glass bead screw 66, so that the elastic collar 62 returns to its natural state and reduces its diameter, so that the glass 1 can be picked up and put down.

[0054] In a preferred embodiment, such as Figure 6 , 10a As shown in Figure 10b, the fixture placement plate 73 is also equipped with a clamping mechanism. The clamping mechanism includes a hook 79 and a second cylinder 710. The hook 79 is located at the edge of the fixture placement plate 73, and the side of the coating fixture 6 has a groove that mates with the hook 79. The second cylinder 710 is fixedly mounted on the second pressure plate 75, and a second throttle valve is installed on the second cylinder 710. The second throttle valve adjusts the operating speed of the second cylinder 710 to prevent damage to the coating fixture 6. The function of the clamping mechanism is to clamp and fix the coating fixture 6 by having the hook 79 open and close via the second cylinder 710.

[0055] The coating fixture 6 provided in this embodiment is a spring clamping device. The spring force is converted into pressure through a mechanical structure. The head (protrusion 631) of the pressure pin 63 has a trapezoidal structure, which presses down to open the elastic collar 62, causing the elastic collar 62 (or other elastic structures, such as elastic rubber sleeves, spring steel clamps, etc.) to elastically deform and expand, thereby pressing against the inner wall of the glass hole or directly pressing it onto the glass hole to fix the glass. The working principle of this coating fixture 6 is as follows:

[0056] Placement of products: such as Figure 7 and Figure 8 As shown, the elastic collar 62 is in a natural state without force, and its outer diameter is slightly smaller than the glass aperture, so the glass can be positioned on the fixture just by the rubber sleeve.

[0057] Fixed products: such as Figure 7 and Figure 9As shown, the first baffle 65 is subjected to force, causing the pressure pin 63 to press down; the trapezoidal protrusion 631 of the pressure pin 63 squeezes the elastic collar 62, causing it to undergo elastic deformation. The elastic collar 62 is stretched and pressed against the glass hole, restricting the freedom of movement of the glass 1 in all directions; since both holes are squeezed simultaneously, the rotational freedom of the glass 1 is also restricted. All the freedom of movement of the glass 1 is restricted, thus achieving a fastening effect.

[0058] Remove the product: such as Figure 7 and Figure 8 As shown, by pressing against the first baffle 65, the pressure pin 63 is released, and the elastic collar 62 is reset to its initial state (outer diameter is smaller than the glass aperture), the product can be removed.

[0059] The glass blind hole clamping fixture provided in this embodiment of the utility model has a coating protection function for glass 1: Since the elastic clamping mechanism of the coating fixture 6 only fixes two points of the glass, when the glass rotates inside the coating machine, it will undergo slight elastic deformation and warp due to centrifugal force; if there is a gap between the coating fixture 6 and the glass, poor coating over-plating will occur. By setting a groove structure (contour groove), the glass is made to sink into the coating fixture 6, and the bottom of the deformed glass does not exceed the groove, thus avoiding coating over-plating.

[0060] The loading and unloading device 7 provided in this embodiment of the invention functions to reset the elastic collar 62, restoring its outer diameter to its initial state (smaller than the inner diameter of the glass blind hole), thus facilitating the loading and unloading of glass. The operating principle of this loading and unloading device 7 is as follows:

[0061] Fixtures: such as Figure 10b As shown, the second cylinder 710 drives the hook 79 to clamp in the side groove of the coating fixture 6, restricting the up-down and left-right movement of the fixture.

[0062] The selection principle for the second cylinder 710: Due to the reset process of the elastic collar 62, the clamping mechanism only needs to press down the coating fixture 6. The force conditions are as follows... Figure 10b As shown, the fixture placement plate 73 presses down on the hook 79, and the hook 79 presses down on the coating fixture 6. The second cylinder 710 does not need to provide additional force; at the same time, if the second cylinder 710 is too large, it will raise the overall height of the device and reduce stability. Therefore, the second cylinder 710 should be a small-diameter dual-axis guided cylinder.

[0063] Elastic collar 62 pressure release and reset: The first cylinder 77 drives the pressure block 76 to press vertically on the first baffle 65, so that the spring is fully compressed, the pressure pin 63 moves up, and the elastic collar 62 pressure is released and reset.

[0064] The selection principle for the first cylinder 77: such as Figure 11a and 11bAs shown, the spring needs to be fully compressed to reset the elastic collar 62. At this time, the force on the second pressure plate 75 is: the thrust of the first cylinder 77 = the elastic force of all springs + the elastic force of the hydraulic damper 78. Therefore, the cylinder diameter of the first cylinder 77 needs to be calculated based on the actual required spring force to select a suitable three-axis guided cylinder.

[0065] The glass clamping step before coating in this embodiment of the invention is as follows: Figure 12 As shown:

[0066] The first cylinder 77 and the second cylinder 710 are reset, and the coating fixture 6 is positioned on the loading and unloading device 7;

[0067] The second cylinder 710 pushes the claw 79 to clamp the coating fixture 6;

[0068] The first cylinder 77 drives the pressure block 76 to press the first baffle 65, so that the elastic collar 62 is reset.

[0069] Place glass product 1;

[0070] The first cylinder 77 and the second cylinder 710 are reset, and the glass 1 is pressed and fixed on the coating fixture 6;

[0071] Remove the coating fixture 6 and mount it on the machine for coating.

[0072] The steps for removing the glass product after coating in this embodiment of the invention are as follows: Figure 13 As shown:

[0073] The first cylinder 77 and the second cylinder 710 are reset, and the coating fixture 6 is positioned on the loading and unloading device 7;

[0074] The second cylinder 710 pushes the claw 79 to clamp the coating fixture 6;

[0075] The first cylinder 77 drives the pressure block 76 to press the first baffle 65, so that the elastic collar 62 is reset.

[0076] Remove glass product 1;

[0077] The first cylinder 77 and the second cylinder 710 are reset, and the coating fixture 6 is removed.

[0078] In a preferred embodiment, such as Figure 14 and Figure 15As shown, the elastic clamping mechanism includes a slider 610, a spring 611, a stop 67, a spring stop 612, a pusher 69, an elastic collar 62, and a pusher 68. The glass 1 is positioned on the coating fixture 6. The stop 67 has a recessed portion, and the spring stop 612 is fixedly connected to the outside of the recessed portion. The pusher 68, slider 610, and spring 611 are sequentially connected and arranged within the recessed portion from the inside out. The pusher 68 abuts against the inside of the stop 67, and the spring 611 abuts against the spring stop 612. A slide rail that cooperates with the slider 610 is provided within the recessed portion. The pusher 69 is fixedly connected to the slider 610, and the slider 610 is held in place by the spring 611, causing the pusher 69 to move inward. An elastic collar 62 is fitted around the outside of the pusher 69 to press and fix the glass. The pusher 68 is fixedly connected to a lifting mechanism, which is used to insert or retract the pusher 68. After the lifting mechanism drives the pusher 68 to be inserted, it pushes the slider 610 to move, so that the pusher 69 moves to the center of the glass hole, and then the glass 1 can be picked up or put down.

[0079] In this embodiment, the steps for placing the glass sheet before coating are as follows: Figure 16 As shown:

[0080] Insert the pusher block, centering the pusher head;

[0081] Position the glass accordingly;

[0082] The push block retracts, the spring pushes the push head, and the elastic collar 62 presses the glass to fix it.

[0083] The steps for removing the glass after coating in this embodiment are as follows: Figure 17 As shown:

[0084] Insert the pusher block, centering the pusher head;

[0085] Remove the glass;

[0086] Remove the clamp.

[0087] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0088] 1. Due to the adoption of the contoured groove structure, the glass can be positioned in the groove, and the side shielding can effectively reduce the overflow of coating.

[0089] 2. Due to the adoption of an elastic clamping structure, the outer diameter of the elastic collar 62 expands and increases to clamp the glass through the elastic deformation within the glass blind hole, making the glass clamping more secure.

[0090] 3. Because the use of glass ball screws 66 provides clamping force, the spring force can be adjusted by adjusting the screw pressing amount, and it is also convenient for maintenance and replacement after the spring force fails.

[0091] 4. Because the elastic collar 62 is made of TPU (Thermoplastic Urethane) material, it can not only avoid damaging the glass, but also reduce the impact of material venting on the coating.

[0092] Because a mechanical structure is used to clamp the glass, not only is the cost of protective film consumables reduced, but it is also easier to automate the production line.

[0093] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A glass blind hole clamping fixture, characterized in that, Includes coating fixtures and loading / unloading devices; The coating fixture is provided with a glass placement plate, which is configured as a contoured groove structure. The inner wall of the contoured groove fits the bottom and side contours of the glass. An elastic pressing mechanism is provided inside the glass placement plate. The elastic pressing mechanism includes an elastic collar. The outer diameter of the elastic collar in the unpressurized state is smaller than the inner diameter of the glass blind hole. The coating fixture applies pressure to the inner wall of the glass blind hole through the elastic collar to press and fix the glass. The loading and unloading device includes a fixture body support for placing the coating fixture. A lifting mechanism is fixedly installed on the fixture body support. The lifting mechanism abuts against the elastic clamping mechanism. The lifting mechanism applies a thrust to the elastic clamping mechanism to eliminate the pressure exerted by the elastic collar on the inner wall of the glass blind hole.

2. The glass blind hole clamping fixture as described in claim 1, characterized in that, The elastic clamping mechanism further includes a glass ball screw, a first baffle, a first pressure plate, a pressure pin, and a fixing screw; the glass ball screw is fixedly installed on the first baffle and abuts against the first pressure plate; the first baffle abuts against the lifting mechanism; the bottom of the elastic collar is provided with a boss; the first pressure plate is provided with an annular groove that mates with the boss; the elastic collar is sleeved on the outside of the pressure pin; the bottom of the pressure pin abuts against the first baffle; the top of the pressure pin extends along the periphery to form a protrusion; the outer diameter of the pressure pin at the protrusion is larger than the inner diameter of the elastic collar in its natural state; and the outer diameter of the pressure pin at the protrusion is smaller than the inner diameter of the glass blind hole. The fixing screw passes through the first baffle and is fixedly connected to the pressure pin.

3. The glass blind hole clamping fixture as described in claim 1, characterized in that, The elastic clamping mechanism further includes a stop, a push block, a push head, a slider, a spring, and a spring stop. The stop has a recessed portion, and the spring stop is fixedly connected to the outside of the recessed portion. The push block, slider, and spring are sequentially connected and arranged in the recessed portion from the inside to the outside. The push block abuts against the inside of the stop, and the spring abuts against the spring stop. A slide rail that cooperates with the slider is provided in the recessed portion. The push head is fixedly connected to the slider, and the elastic collar is sleeved on the outside of the push head. The push block is fixedly connected to the lifting mechanism.

4. A glass blind hole clamping fixture as described in claim 1, characterized in that, The fixture main support includes a base plate, on which at least four support columns are provided, and a fixture placement plate is provided on each support column.

5. A glass blind hole clamping fixture as described in claim 4, characterized in that, A second baffle is provided at the edge of the fixture placement plate.

6. A glass blind hole clamping fixture as described in claim 4, characterized in that, The lifting mechanism includes a second pressure plate, a pressure block, and a first cylinder. One end of the pressure block is fixedly mounted on the second pressure plate, and the other end of the pressure block abuts against the first baffle. The cylinder body of the first cylinder is fixedly mounted on the base plate, and the piston rod of the first cylinder abuts against the second pressure plate.

7. A glass blind hole clamping fixture as described in claim 6, characterized in that, A hydraulic damper is fixedly installed on the second pressure plate.

8. A glass blind hole clamping fixture as described in claim 6, characterized in that, The fixture placement plate is also provided with a clamping mechanism, which includes a claw and a second cylinder. The claw is located at the edge of the fixture placement plate, and the side of the coating fixture is provided with a groove that cooperates with the claw. The second cylinder is fixedly mounted on the second pressure plate and is used to drive the claw to open and close.

9. A glass blind hole clamping fixture as described in claim 8, characterized in that, The first cylinder is equipped with a first throttle valve, and the second cylinder is equipped with a second throttle valve.

10. A glass blind hole clamping fixture as described in claim 8, characterized in that, The first cylinder is a three-axis guided cylinder, and the second cylinder is a two-axis guided cylinder.

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