Plate glass clamping and centering device and method

Abstract

The invention discloses a plate glass clamping and centering device which comprises a rack, a conveying system, a first clamping assembly and a second clamping assembly. The conveying system is connected to the rack, and rubber rollers of the conveying system are connected to the two sides of the rack in parallel at intervals. The first clamping assembly is connected with one side of the rack and comprises a first lead screw nut assembly, a first air cylinder assembly and a first positioning wheel, the first lead screw nut assembly is connected with the fixed end of the first air cylinder assembly, and the telescopic end of the first air cylinder assembly is connected with the first positioning wheel; the second clamping assembly is connected with the other side of the rack, the second clamping assembly comprises a second lead screw nut assembly, a second air cylinder assembly and a second positioning wheel elastically arranged in the axial direction of the rubber roller, the second lead screw nut assembly is connected with the fixed end of the second air cylinder assembly, and the telescopic end of the second air cylinder assembly is connected with the second positioning wheel; a glass station is formed between the first positioning wheel and the second positioning wheel; the distance between the first positioning wheel and the second positioning wheel is larger than the distance between the first air cylinder assembly and the second air cylinder assembly. The invention further discloses a plate glass clamping and centering method. The glass conveying device has the beneficial effect that the purpose that all the glass can reach the same position accurately is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of glass production and processing, and in particular to a clamping and centering device. Background Art

[0002] In the production and processing of flat glass, some links have high requirements for the position accuracy of the glass, such as tempering and coating. In the tempering furnace, if the glass deviates too much from the specified position, it will directly affect the tempering effect; and in the coating process, if the glass deviates too much, part of the plate surface will not be coated, forming waste. After the glass processing is completed, the glass needs to be taken out of the production line and stacked for easy storage or transportation. With the acceleration of the modernization process, the stacking operation is gradually replaced by machines, and machines currently do not have the same intelligence as humans. This requires that when the machine takes the glass, the glass can be brought to the same area and the position is relatively unchanged. In the past, centering devices only used cylinder clamping, such as CN215797052U - a positioning mechanism for glass conveying equipment, which only used cylinders to drive the positioning wheels. When adjusting the working position of the cylinder, if there is a gap between the positioning wheel and the glass, the glass may only contact the positioning wheel on one side, or may not contact the positioning wheels on both sides, resulting in inconsistent final stop positions and inaccurate positioning. If there is no gap between the positioning wheel and the glass, the working position of the cylinder can only be adjusted to the point where the "cylinder stroke is not completed" and the positioning wheel contacts the glass. However, due to the influence of various uncertain factors such as unstable air pressure, uneven friction of the cylinder rod itself, and the positioning wheels on both sides not contacting the glass at the same time, it is impossible to determine which "cylinder stroke is not completed" in the end, resulting in inconsistent glass stop positions and inaccurate positioning.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to a person skilled in the art. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to solve the problem of inaccurate positioning of flat glass.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] A flat glass clamping and centering device comprises a frame, a conveying system, a first clamping assembly, and a second clamping assembly;

[0007] The conveying system is connected to the frame, and the rubber rollers of the conveying system are connected to both sides of the frame in parallel and at intervals;

[0008] The first clamping assembly is connected to one side of the frame, and the first clamping assembly includes a first screw nut assembly, a first cylinder assembly, and a first positioning wheel. The first screw nut assembly is connected to the fixed end of the first cylinder assembly, and the telescopic end of the first cylinder assembly is connected to the first positioning wheel;

[0009] The second clamping assembly is connected to the other side of the frame, and the second clamping assembly includes a second screw nut assembly, a second cylinder assembly, and a second positioning wheel elastically arranged along the axial direction of the rubber roller, the second screw nut assembly is connected to the fixed end of the second cylinder assembly, and the telescopic end of the second cylinder assembly is connected to the second positioning wheel; a glass working station is formed between the first positioning wheel and the second positioning wheel;

[0010] The distance between the first positioning wheel and the second positioning wheel is greater than the distance between the first cylinder assembly and the second cylinder assembly.

[0011] In the present invention, one side of the glass is positioned by the first positioning wheel of the first clamping assembly, and the other side of the glass is elastically pushed by the second positioning wheel of the second clamping assembly, so that both sides of the glass can contact the positioning wheel to obtain a preset centering position; the screw nut assembly directly drives the cylinder, and the buffering effect of the first cylinder assembly and the second cylinder assembly at the end of the stroke can be used to effectively reduce the impact inside the mechanism, and the operation is stable and the noise is low; the elastically arranged second positioning wheel can solve the problem of "seemingly contacting" but actually "non-contacting". The present invention achieves the purpose of accurately allowing the glass to reach the same position.

[0012] Preferably, the two ends of the rubber roller are rotatably connected to the tops of both sides of the frame, and the conveying system also includes a reduction motor and a synchronous belt. The reduction motor is connected to the frame, and the output end of the reduction motor is connected to the synchronous belt. The synchronous belt is connected to the ends of all the rubber rollers to drive the rubber rollers to rotate synchronously.

[0013] Preferably, the first clamping assembly includes a first hand wheel, a first guide rail, a first positioning wheel bracket, and a plurality of first positioning wheels;

[0014] Both ends of the first screw rod and nut assembly are rotatably connected to the frame, the first hand wheel is connected to the first screw rod and nut assembly, and both ends of the first guide rail are fixedly connected to the frame;

[0015] The first screw nut assembly and the first guide rail are arranged parallel to the rubber roller;

[0016] The first cylinder assembly connects the first screw nut assembly and the first guide rail, the first positioning wheel bracket is connected to the first guide rail, the telescopic end of the first cylinder assembly is connected to the first positioning wheel bracket, and the top end of the first positioning wheel bracket can be rotatably connected to the first positioning wheel.

[0017] Preferably, the first screw rod and nut assembly includes a first screw rod and a first nut, both ends of the first screw rod are connected to the frame through seat bearings, the first nut is connected to the first screw rod, and the bottom of the first cylinder assembly is connected to the first nut.

[0018] Preferably, the first cylinder assembly includes a first cylinder bracket and a first cylinder body, the bottom of the first cylinder bracket is connected to the first nut, the first cylinder bracket is also slidably connected to the first guide rail, the first cylinder body is connected to the first cylinder bracket, and the telescopic end of the first cylinder body is connected to the first positioning wheel bracket.

[0019] Preferably, the second clamping assembly includes a second hand wheel, a second guide rail, a second positioning wheel bracket, an elastic assembly, and a plurality of second positioning wheels;

[0020] Both ends of the second screw rod and nut assembly are rotatably connected to the frame, the second hand wheel is connected to the second screw rod and nut assembly, and both ends of the second guide rail are fixedly connected to the frame;

[0021] The second screw nut assembly and the second guide rail are arranged parallel to the rubber roller;

[0022] The second cylinder assembly connects the second screw nut assembly and the second guide rail, the second positioning wheel bracket is connected to the second guide rail, the elastic assembly is connected to the second positioning wheel bracket, the telescopic end of the second cylinder assembly is connected to the elastic assembly, and the top end of the second positioning wheel bracket can be rotatably connected to the second positioning wheel.

[0023] Preferably, the second screw rod and nut assembly comprises a second screw rod and a second nut, both ends of the second screw rod are connected to the frame through seat bearings, the second nut is connected to the second screw rod, and the bottom of the second cylinder assembly is connected to the second nut;

[0024] The second cylinder assembly includes a second cylinder bracket and a second cylinder body. The bottom of the second cylinder bracket is connected to the second nut. The second cylinder bracket is also slidably connected to the second guide rail. The second cylinder body is connected to the second cylinder bracket. The telescopic end of the second cylinder body is connected to the second positioning wheel bracket.

[0025] Preferably, the elastic component includes a cavity, a pull rod, two springs, and a plug. The pull rod is a T-shaped pull rod. The small end of the pull rod extends from the cavity and is connected to the telescopic end of the second cylinder assembly. The large end of the pull rod is located in the cavity. The springs are located in the cavity and are respectively placed on both sides of the large end of the pull rod. The plug is connected to one end of the cavity away from the second cylinder assembly.

[0026] Preferably, the heights of the first positioning wheel of the first clamping assembly and the second positioning wheel of the second clamping assembly are higher than the highest point of the rubber roller.

[0027] The present invention also discloses a flat glass clamping and centering method, which uses the flat glass clamping and centering device, and comprises the following steps:

[0028] S1: Find the preset centering position according to the size of different flat glass;

[0029] Place the flat glass on the rubber roller and adjust it to the set size position;

[0030] The first cylinder assembly is in a fully retracted state, and the first screw nut assembly drives the first cylinder assembly and the first positioning wheel to align with one side of the flat glass and then stop; the second cylinder assembly is in a fully retracted state, and the second screw nut assembly drives the second cylinder assembly and the second positioning wheel to align with the other side of the flat glass and then stop; at this time, the first screw nut assembly and the second screw nut assembly are stationary, and the distance between the first positioning wheel and the second positioning wheel is the preset centering position; the first cylinder assembly drives the first positioning wheel to move a distance to one side of the frame, and the second cylinder assembly drives the second positioning wheel to move a distance to the other side of the frame;

[0031] S2: clamping and centering operation;

[0032] When the flat glass is transported to the clamping and centering station, the conveying system stops transporting;

[0033] The first cylinder assembly drives the first positioning wheel to move away from the side of the frame, and the second cylinder assembly drives the second positioning wheel to move away from the side of the frame and return to the preset centering position in S1 to correct the flat glass.

[0034] The advantages of the present invention are:

[0035] In the present invention, one side of the glass is positioned by the first positioning wheel of the first clamping assembly, and the other side of the glass is elastically pushed by the second positioning wheel of the second clamping assembly, so that both sides of the glass can contact the positioning wheel to obtain a preset centering position; the screw nut assembly directly drives the cylinder, and the buffering effect of the first cylinder assembly and the second cylinder assembly at the end of the stroke can be used to effectively reduce the impact inside the mechanism, and the operation is stable and the noise is small; the elastically arranged second positioning wheel can reduce the problem of "seemingly contacting" but actually "non-contacting". The present invention achieves the purpose of accurately reaching the same position for all glasses.

[0036] In the method of the present invention, the cylinder has only two states: extended to the full position and retracted to the full position. The problem of which cylinder has not completed its stroke is not involved, thus avoiding the problem of inconsistent correction position of the flat glass. In the present invention, there is only one preset centering position, which can ensure the correction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 1 is a front view of a flat glass clamping and centering device according to an embodiment of the present invention;

[0038] Figure 2 2 is a right side view of the flat glass clamping and centering device according to an embodiment of the present invention;

[0039] Figure 3 is a top view of a flat glass clamping and centering device according to an embodiment of the present invention;

[0040] Figure 4 is a side view of a first clamping assembly according to an embodiment of the present invention;

[0041] Figure 5 is a side view of a second clamping assembly according to an embodiment of the present invention;

[0042] Figure 6 2 is a schematic diagram of the working method of clamping and centering a flat glass according to an embodiment of the present invention;

[0043] Numbers in the figure:

[0044] 1. Frame;

[0045] 2. Conveying system; 21. Rubber roller; 22. Speed ​​reduction motor; 23. Synchronous belt;

[0046] 3. First clamping assembly; 31. First positioning wheel; 32. First hand wheel; 33. First screw nut assembly; 331. First screw; 332. First nut; 34. First cylinder assembly; 341. First cylinder bracket; 342. First cylinder body; 35. First guide rail; 36. First positioning wheel bracket;

[0047] 4. Second clamping assembly; 41. Second positioning wheel; 42. Second hand wheel; 43. Second screw and nut assembly; 431. Second screw; 432. Second nut; 44. Second cylinder assembly; 441. Second cylinder bracket; 442. Second cylinder body; 45. Second guide rail; 46. Second positioning wheel bracket; 47. Elastic assembly;

[0048] 5. Induction switch; 6. Flat glass. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Embodiment 1:

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, the flat glass clamping and centering device includes a frame 1, a conveying system 2, a first clamping assembly 3, and a second clamping assembly 4; the conveying system 2 is connected to the frame 1, and the rubber rollers 21 of the conveying system 2 are connected to the two sides of the frame 1 in parallel and at intervals; the first clamping assembly 3 is connected to one side of the frame 1, and the first clamping assembly 3 includes a first positioning wheel 31; the second clamping assembly 4 is connected to the other side of the frame 1, and the second clamping assembly 4 includes a second positioning wheel 41 elastically arranged along the axial direction of the rubber roller 21; a glass work station is formed between the first positioning wheel 31 and the second positioning wheel 41.

[0052] Here is the space between the glass station and the place where the flat glass 6 is placed.

[0053] Specifically, the frame 1 is a steel structure frame, and is a mounting support for the conveying system 2 , the first clamping assembly 3 , and the second clamping assembly 4 .

[0054] The conveying system 2 includes a reduction motor 22, a synchronous belt 23, and a plurality of rubber rollers 21. The two ends of the rubber rollers 21 can be rotatably connected to the tops of the two sides of the frame 1. The rubber rollers 21 can be connected to the frame 1 through bearings, and the height of the rubber rollers 21 is ensured to be higher than the frame 1. The reduction motor 22 is connected to the middle support rod of the frame 1, and the output end of the reduction motor 22 is connected to the synchronous belt 23. The synchronous belt 23 is connected to the ends of all the rubber rollers 21 to drive the rubber rollers 21 to rotate synchronously. In this embodiment, the synchronous belt 23 refers to components such as a transmission belt and a transmission wheel. Since there are multiple rubber rollers 21 in this embodiment, the synchronous belt 23 is used for transmission between adjacent rubber rollers 21 to achieve the same and uniform rotation between the multiple rubber rollers 21.

[0055] The first clamping assembly 3 includes a plurality of first positioning wheels 31, a first hand wheel 32, a first screw nut assembly 33, a first cylinder assembly 34, a first guide rail 35, and a first positioning wheel bracket 36; wherein the first screw nut assembly 33 includes a first screw 331 and a first nut 332; the first cylinder assembly 34 includes a first cylinder bracket 341 and a first cylinder body 342.

[0056] In this embodiment, there are two first guide rails 35 , which are respectively located on two sides of the first cylinder support 341 .

[0057] Both ends of the first screw rod 331 are connected to the frame 1 through seat bearings, and the seat bearings are fixed on the frame 1. The first nut 332 is connected to the first screw rod 331, and the bottom of the first cylinder bracket 341 is connected to the first nut 332. The first cylinder body 342 is connected to the first cylinder bracket 341, and the telescopic end of the first cylinder body 342 is connected to the first positioning wheel bracket 36, and the top of the first positioning wheel bracket 36 is connected to the column, and the top of the column is connected to the first positioning wheel 31.

[0058] The first guide rail 35 is fixed on the frame 1 , and the first cylinder bracket 341 is connected to the first nut 332 except for the bottom, and both ends of the first cylinder bracket 341 are slidably connected to the first guide rail 35 . Both ends of the first positioning wheel bracket 36 are slidably connected to the first guide rail 35 .

[0059] The first hand wheel 32 is connected to the first screw rod 331 . Driving the first hand wheel 32 can realize the rotation of the first screw rod 331 . The first screw rod 331 and the first guide rail 35 are both arranged parallel to the rubber roller 21 .

[0060] In this embodiment, after the first hand wheel 32 rotates, it can drive the first screw rod 331 to rotate, thereby driving the first nut 332 to move linearly along the first screw rod 331, the first cylinder assembly 34 to move linearly along the first screw rod 331, and the first positioning wheel bracket 36 and the first positioning wheel 31 to move linearly.

[0061] In this embodiment, the second clamping assembly 4 and the first clamping assembly 3 are basically symmetrical in structure, and the structures of the two are substantially the same, except that the second clamping assembly 4 further includes an elastic assembly 47 .

[0062] The second clamping assembly 4 includes a plurality of second positioning wheels 41, a second hand wheel 42, a second screw nut assembly 43, a second cylinder assembly 44, a second guide rail 45, and a second positioning wheel bracket 46; wherein the second screw nut assembly 43 includes a second screw 431 and a second nut 432; the second cylinder assembly 44 includes a second cylinder bracket 441 and a second cylinder body 442.

[0063] In this embodiment, there are two second guide rails 45 , which are respectively located at two ends of the second cylinder support 441 .

[0064] Both ends of the second screw rod 431 are connected to the frame 1 through seat bearings, and the seat bearings are fixed on the frame 1. The second nut 432 is connected to the second screw rod 431, and the bottom of the second cylinder bracket 441 is connected to the second nut 432. The second cylinder body 442 is connected to the second cylinder bracket 441, and the telescopic end of the second cylinder body 442 is connected to the elastic component 47, the bottom of the elastic component 47 is connected to the second positioning wheel bracket 46, the top of the elastic component 47 is connected to the column, and the top of the column is connected to the second positioning wheel 41.

[0065] The second guide rail 45 is fixed on the frame 1, and the second cylinder bracket 441 is connected to the second nut 432 except the bottom, and both ends of the second cylinder bracket 441 are slidably connected to the second guide rail 45. Both ends of the second positioning wheel bracket 46 are slidably connected to the second guide rail 45.

[0066] The second hand wheel 42 is connected to the second screw rod 431 . Driving the second hand wheel 42 can realize the rotation of the second screw rod 431 . The second screw rod 431 and the second guide rail 45 are both arranged parallel to the rubber roller 21 .

[0067] In this embodiment, after the second hand wheel 42 rotates, it can drive the second screw rod 431 to rotate, thereby driving the second nut 432 to move linearly along the second screw rod 431, the second cylinder assembly 44 to move linearly along the second screw rod 431, and the second positioning wheel bracket 46 and the second positioning wheel 41 to move linearly.

[0068] The elastic component 47 includes a cavity 471, a pull rod 472, two springs 473, and a plug 474. The pull rod 472 is a T-shaped pull rod. The small end (the right end in the figure) of the pull rod 472 extends from the cavity 471 and is connected to the telescopic end of the second cylinder body 442. The large end of the pull rod 472 is located in the cavity 471. The springs 473 are located in the cavity 471 and are respectively placed on both sides of the large end of the pull rod 472. The plug 474 connects the end of the cavity 471 away from the second cylinder assembly 44. The second cylinder body 442 pulls the pull rod 472, and the pull rod 472 compresses the right spring 473, so that the second positioning wheel 41 thereon can contact the flat glass 6 with a certain buffer.

[0069] A cross bar may also be extended from the left end of the pull rod 472 , and the left spring 473 is sleeved on the cross bar to ensure that the spring 473 is compressed along the axial direction.

[0070] In this embodiment, multiple first positioning wheels 31 and multiple second positioning wheels 41 are provided, and each is driven by a cylinder to realize linear motion, which can achieve uniform position, and multiple first positioning wheels 31 and multiple second positioning wheels 41 can form a correction surface, which is tangent to the side of the flat glass 6 at the same time, ensuring accurate positioning.

[0071] In this embodiment, the distance between the first positioning wheel 31 and the second positioning wheel 41 is greater than the distance between the first cylinder assembly 34 and the second cylinder assembly 44; that is, the first cylinder assembly 34 and the second cylinder assembly 44 are closer, and the distance between the first positioning wheel 31 and the second positioning wheel 41 is greater. It is convenient to reduce the size of the equipment and reduce the floor space. This is because both sides of the cylinder body are equipped with buffer devices, which can buffer both extension and retraction. The distance between the positioning wheels of this equipment is larger than that of the cylinder, mainly because when the size of the glass is certain, the distance between the positioning wheels is also determined. If the cylinder is set to be larger than the distance between the positioning wheels, the size of the frame will increase.

[0072] The heights of the first positioning wheel 31 of the first clamping assembly 3 and the second positioning wheel 41 of the second clamping assembly 4 are higher than the highest point of the rubber roller 21. In addition, except that the heights of the first positioning wheel 31 and the second positioning wheel 41 are slightly higher, the positions of other components in the first clamping assembly 3 and the second clamping assembly 4 are lower than the rubber roller 21 so as not to interfere with the normal transportation of the flat glass 6.

[0073] In this embodiment, the first positioning wheel 31 of the first clamping assembly 3 positions one side of the glass, and the second positioning wheel 41 of the second clamping assembly 4 elastically pushes the other side of the glass, so that both sides of the flat glass 6 can contact the positioning wheel, and the position of the glass is corrected, and the clamping and centering work is completed. In this embodiment, the elastically arranged second positioning wheel 41 can realize the mode of clamping the fixed side + clamping the pressure side, so that the glass can accurately reach the same position.

[0074] Embodiment 2:

[0075] like Figure 6 As shown, a flat glass clamping and centering method, using the flat glass clamping and centering device, comprises the following steps:

[0076] It should be noted that: the cylinder is widely used in the field of industrial automation, and its main function is to convert the energy of compressed air into linear reciprocating motion. During the working process of the cylinder, especially when the stroke is about to end, if there is no appropriate buffering effect, the piston may hit the end cover at high speed, resulting in damage to the cylinder body and shortening of the life, and also causing vibration and noise. Therefore, the design of the buffering effect is crucial to ensure the stability of the cylinder operation and extend the service life. This embodiment utilizes the buffering effect of the cylinder to reduce noise and reduce damage to the flat glass 6.

[0077] S1: Finding a preset centering position according to the size of different flat glass sheets 6;

[0078] Place the flat glass 6 on the rubber roller 21 and adjust it to the set size position; at this time, the flat glass 6 is in the correct position;

[0079] The first cylinder body 342 is in a fully retracted state, the first hand wheel 32 is rotated, the first screw rod 331 is rotated, and the first nut 332 is driven to move linearly along the first screw rod 331, and the first cylinder bracket 341, the first cylinder body 342, the first positioning wheel bracket 36 and the first positioning wheel 31 are driven to move linearly, and even stop after being aligned with one side of the flat glass. At this time, the first hand wheel 32 is locked to prevent the first hand wheel 32 from rotating;

[0080] It should be noted that the first positioning wheel 31 may not be directly aligned with the flat glass 6, and the first positioning wheel 31 may be close to the flat glass 6 with a gap of about 1 mm. In this case, the flat glass 6 is placed at an offset of 1 mm from the correct position to ensure that the distance between the first positioning wheel 31 and the second positioning wheel 41 and the positions of the two are correct.

[0081] Similarly, the second cylinder body 442 is in a fully retracted state, the second hand wheel 42 is rotated, the second screw rod 431 is rotated, and the second nut 432 is driven to move linearly along the second screw rod 431, and the second cylinder bracket 441, the second cylinder body, the second positioning wheel bracket 46 and the second positioning wheel 41 are driven to move linearly, and even stop after being aligned with the other side of the flat glass 6;

[0082] At this time, the positions of the first screw nut assembly 33 and the second screw nut assembly 43 are kept stationary due to the locking of the hand wheel, and the distance between the first positioning wheel 31 and the second positioning wheel 41 is the preset centering position;

[0083] After finding the preset centering position, the first cylinder body 342 drives the first positioning wheel 31 to move toward one side of the frame 1 by the length of the cylinder stroke, and the second cylinder bracket 441 drives the second positioning wheel 41 to move toward the other side of the frame 1 by the length of the cylinder stroke; to ensure that during normal operation, the flat glass 6 can pass between the first positioning wheel 31 and the second positioning wheel 41.

[0084] In this embodiment, the piston rod of the cylinder has only two positions in a static state: the fully extended position and the fully retracted position, and the piston rod will not stop in the middle (unless a stroke limiting device is added).

[0085] S2: clamping and centering operation;

[0086] During normal use, the reduction motor 22 drives the rubber roller 21 to rotate through the synchronous belt 23. Several rubber rollers 21 form a plane. The rotation of the rubber roller 21 drives the flat glass 6 to move forward on the upper surface of the rubber roller 21. The flat glass 6 deviates during the movement (there is no need to detect whether the flat glass 6 deviates. First of all, it will basically deviate during the transportation process, that is, as long as the flat glass 6 is detected by the sensor switch, the clamping and centering operation will be performed). When the front end of the flat glass 6 moves to the sensor switch 5, the sensor switch 5 detects that the flat glass 6 moves to the appropriate position, and then sends a signal to stop the reduction motor 22, thereby stopping the rotation of the rubber roller 21 and stopping the movement of the flat glass 6. At the same time, the signal causes the first cylinder body 342 and the second cylinder body to move to a fully retracted state. At this time, the first positioning wheel 31 and the second positioning wheel 41 push the flat glass 6 to the preset centering position in S1 to correct the flat glass 6.

[0087] After the flat glass 6 reaches the preset centering position, the first cylinder body 342 and the second cylinder body 442 extend again to move the first positioning wheel 31 and the second positioning wheel 41 away from the flat glass 6. Then the reduction motor 22 starts to drive the rubber roller 21 to rotate and transport the glass to the subsequent workstation.

[0088] Since in this embodiment, the first cylinder body 342 and the second cylinder body are in a fully retracted state when they find the preset centering position in step S1, it can be ensured that they are in a real contact state rather than a "quasi-contact" state when they contact the flat glass 6. At the same time, in step S2, when the first cylinder body 342 and the second cylinder body 442 are retracted, when the stroke is about to end, that is, when the first positioning wheel 31 and the second positioning wheel 41 are about to contact the flat glass 6, the cushioning effect of the cylinder itself can be used to effectively reduce the impact inside the mechanism, the operation is stable, the noise is low, the impact on the flat glass 6 is reduced, and the flat glass 6 is avoided from being damaged.

[0089] At the same time, since the present embodiment adopts the mode of adding elastic mechanism, clamping fixed edge + clamping pressure edge on the one hand; on the other hand, in the present embodiment, the cylinder has only two states, extended and retracted, and cannot stop in the middle (stopping in the middle involves the problem of "which cylinder has not completed its stroke", which seriously affects the positioning accuracy), the purpose of ensuring that the flat glass 6 can accurately reach the same position is achieved.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flat glass clamping and centering device, characterized in that: It includes a frame, a conveying system, a first clamping assembly, and a second clamping assembly; The conveying system is connected to the frame, and the rubber rollers of the conveying system are connected to both sides of the frame in parallel and at intervals; The first clamping assembly is connected to one side of the frame, and the first clamping assembly includes a first screw nut assembly, a first cylinder assembly, and a first positioning wheel. The first screw nut assembly is connected to the fixed end of the first cylinder assembly, and the telescopic end of the first cylinder assembly is connected to the first positioning wheel; The second clamping assembly is connected to the other side of the frame, and the second clamping assembly includes a second screw nut assembly, a second cylinder assembly, and a second positioning wheel elastically arranged along the axial direction of the rubber roller, the second screw nut assembly is connected to the fixed end of the second cylinder assembly, and the telescopic end of the second cylinder assembly is connected to the second positioning wheel; a glass working station is formed between the first positioning wheel and the second positioning wheel; The distance between the first positioning wheel and the second positioning wheel is greater than the distance between the first cylinder assembly and the second cylinder assembly.

2. The flat glass clamping and centering device according to claim 1, characterized in that: The two ends of the rubber roller are rotatably connected to the tops of both sides of the frame. The conveying system also includes a reduction motor and a synchronous belt. The reduction motor is connected to the frame, and the output end of the reduction motor is connected to the synchronous belt. The synchronous belt is connected to the ends of all the rubber rollers to drive the rubber rollers to rotate synchronously.

3. The flat glass clamping and centering device according to claim 1, characterized in that: The first clamping assembly includes a first hand wheel, a first guide rail, a first positioning wheel bracket, and a plurality of first positioning wheels; Both ends of the first screw rod and nut assembly are rotatably connected to the frame, the first hand wheel is connected to the first screw rod and nut assembly, and both ends of the first guide rail are fixedly connected to the frame; The first screw nut assembly and the first guide rail are arranged parallel to the rubber roller; The first cylinder assembly connects the first screw nut assembly and the first guide rail, the first positioning wheel bracket is connected to the first guide rail, the telescopic end of the first cylinder assembly is connected to the first positioning wheel bracket, and the top end of the first positioning wheel bracket can be rotatably connected to the first positioning wheel.

4. The flat glass clamping and centering device according to claim 3, characterized in that: The first screw rod and nut assembly includes a first screw rod and a first nut. Both ends of the first screw rod are connected to the frame through seat bearings. The first nut is connected to the first screw rod. The bottom of the first cylinder assembly is connected to the first nut.

5. The flat glass clamping and centering device according to claim 4, characterized in that: The first cylinder assembly includes a first cylinder bracket and a first cylinder body. The bottom of the first cylinder bracket is connected to the first nut. The first cylinder bracket is also slidably connected to the first guide rail. The first cylinder body is connected to the first cylinder bracket. The telescopic end of the first cylinder body is connected to the first positioning wheel bracket.

6. The flat glass clamping and centering device according to claim 1, characterized in that: The second clamping assembly includes a second hand wheel, a second guide rail, a second positioning wheel bracket, an elastic assembly, and a plurality of second positioning wheels; Both ends of the second screw rod and nut assembly are rotatably connected to the frame, the second hand wheel is connected to the second screw rod and nut assembly, and both ends of the second guide rail are fixedly connected to the frame; The second screw nut assembly and the second guide rail are arranged parallel to the rubber roller; The second cylinder assembly connects the second screw nut assembly and the second guide rail, the second positioning wheel bracket is connected to the second guide rail, the elastic assembly is connected to the second positioning wheel bracket, the telescopic end of the second cylinder assembly is connected to the elastic assembly, and the top end of the second positioning wheel bracket can be rotatably connected to the second positioning wheel.

7. The flat glass clamping and centering device according to claim 6, characterized in that: The second screw rod and nut assembly includes a second screw rod and a second nut, both ends of the second screw rod are connected to the frame through seat bearings, the second nut is connected to the second screw rod, and the bottom of the second cylinder assembly is connected to the second nut; The second cylinder assembly includes a second cylinder bracket and a second cylinder body. The bottom of the second cylinder bracket is connected to the second nut. The second cylinder bracket is also slidably connected to the second guide rail. The second cylinder body is connected to the second cylinder bracket. The telescopic end of the second cylinder body is connected to the second positioning wheel bracket.

8. The flat glass clamping and centering device according to claim 6, characterized in that: The elastic component includes a cavity, a pull rod, two springs, and a plug. The pull rod is a T-shaped pull rod. The small end of the pull rod extends out of the cavity and is connected to the telescopic end of the second cylinder assembly. The large end of the pull rod is located in the cavity. The springs are located in the cavity and are respectively placed on both sides of the large end of the pull rod. The plug is connected to one end of the cavity away from the second cylinder assembly.

9. The flat glass clamping and centering device according to claim 1, characterized in that: The heights of the first positioning wheel of the first clamping assembly and the second positioning wheel of the second clamping assembly are higher than the highest point of the rubber roller.

10. A method for clamping and centering flat glass, characterized in that: The flat glass clamping and centering device according to any one of claims 1 to 9 comprises the following steps: S1: Find the preset centering position according to the size of different flat glass; Place the flat glass on the rubber roller and adjust it to the set size position; The first cylinder assembly is in a fully retracted state, and the first screw nut assembly drives the first cylinder assembly and the first positioning wheel to align with one side of the flat glass and then stop; the second cylinder assembly is in a fully retracted state, and the second screw nut assembly drives the second cylinder assembly and the second positioning wheel to align with the other side of the flat glass and then stop; at this time, the first screw nut assembly and the second screw nut assembly are stationary, and the distance between the first positioning wheel and the second positioning wheel is the preset centering position; the first cylinder assembly drives the first positioning wheel to move a distance to one side of the frame, and the second cylinder assembly drives the second positioning wheel to move a distance to the other side of the frame; S2: clamping and centering operation; When the flat glass is transported to the clamping and centering station, the conveying system stops transporting; The first cylinder assembly drives the first positioning wheel to move away from the side of the frame, and the second cylinder assembly drives the second positioning wheel to move away from the side of the frame and return to the preset centering position in S1 to correct the flat glass.

Images