Multi-finger synchronous centering glass plate clamping jaw with floating lifting function

Abstract

The utility model discloses a multi-finger synchronous centering glass plate clamping jaw with a floating lifting function. The multi-finger synchronous centering glass plate clamping jaw comprises a multi-finger centering unit and a splicing floating lifting unit which are fixedly connected up and down, the multi-point centering unit comprises an upper cover body, a middle pusher, an upper cylinder body and an upper piston; the upper surface of the upper cover body is provided with a sunken central groove and n guide grooves which are arranged around the central groove and are respectively communicated with the central groove, n is a natural number greater than or equal to 2, a guide sliding block is slidably connected in each guide groove, the upper piston is arranged in the upper cylinder body, and the upper piston and the upper cylinder body form a cylinder structure; the upper cylinder body is fixed to the lower portion of the upper cover body, the upper portion of the middle pusher extends into the center groove and is connected with the guide sliding block, and the lower portion of the middle pusher is connected with the upper piston. Compared with the prior art, the splicing floating lifting unit with the lifting function is installed below the multi-point centering unit, the guide sliding block directly serving as a clamping finger or the clamping finger connected with the guide sliding block can be lifted, and after workpiece centering and opening are completed, the splicing floating lifting unit descends to avoid a cutting head.

Description

Technical Field

[0001] The utility model belongs to the technical field of manipulators, and in particular relates to a multi-finger synchronous centering glass plate clamp with floating lifting and lowering functions. Background Art

[0002] Before cutting the edges of thin glass workpieces (such as the glass casing of a tablet or mobile phone), the glass workpiece needs to be positioned using a clamping finger to ensure accurate centering. The glass workpiece is then fixed, and the processing equipment needs to move above the glass workpiece. To prevent the clamping finger from interfering with the cutting head of the cutting equipment, after positioning is completed, the clamping finger needs to be lowered below the glass workpiece and sufficient safety space must be reserved for the movement of the cutting head. The cutting head is then used to cut the circumference of the glass workpiece to obtain the required precise outer contour shape.

[0003] The prior art's integrated glass plate centering gripper consists of gripping fingers and a suction cup. The gripping fingers extend horizontally to position the workpiece, while the suction cup secures the workpiece. However, the gripping fingers only have horizontal extension and retraction freedom, moving toward or away from the workpiece. Existing glass plate centering grippers are unable to control the gripping fingers' lowering below the workpiece, leaving insufficient clearance for the cutting head's movement. In this situation, the cutting head would inevitably collide with the gripping fingers during direct processing, rendering them unsuitable for use.

[0004] Therefore, it is necessary to provide a new multi-finger synchronous centering glass plate clamp with floating lifting function to solve the above technical problems. Summary of the Invention

[0005] (1) Technical issues to be resolved

[0006] Based on this, the utility model provides a multi-finger synchronous centering glass plate clamp with a floating lifting function to solve the technical problem that the clamping fingers of the existing glass plate centering clamp cannot avoid the cutting head.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model proposes a multi-finger synchronous centering glass plate clamp with a floating lifting function, including a multi-finger centering unit and a spliced ​​floating lifting unit fixedly connected above and below; the multi-finger centering unit includes: an upper cover body, a middle push, an upper cylinder body and an upper piston; the upper surface of the upper cover body is provided with a concave central groove and n guide grooves arranged around the central groove and respectively connected to the central groove, n is a natural number ≥2, each of the guide grooves is slidably connected with a guide slider, the upper piston is arranged in the upper cylinder body and the two form a cylinder structure; the upper cylinder body is fixed to the lower part of the upper cover body, the upper part of the middle push extends into the central groove, and is connected to the The guide slider is connected, and the lower part of the middle push is connected to the upper piston; the spliced ​​floating lifting unit includes a lower cylinder body, a lower piston and a piston rod that together constitute a cylinder structure, the lower cylinder body is fixed to the lower part of the upper cylinder body, the upper part of the piston rod is connected to the upper piston, and the lower part of the piston rod extends out of the lower cylinder body; the upper and lower ends of the piston rod are respectively a movable end and a fixed end, the movable end is connected to the lower piston, and the fixed end extends out of the lower cylinder body; the lifting of the upper piston can drive the middle push to rise and fall synchronously, thereby driving all the guide sliders to extend and retract synchronously; the lifting of the lower cylinder body can drive the multi-finger centring unit to rise and fall synchronously as a whole.

[0009] (3) Beneficial effects

[0010] Compared with the existing technology, the utility model installs a spliced ​​floating lifting unit with a lifting function under the multi-finger centering unit, which can lift the guide slider (the guide slider directly serves as the clamping finger) or the clamping finger connected to the guide slider, and then lower it after completing the centering of the workpiece and opening it to avoid the cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A three-dimensional diagram of the overall structure of the utility model Figure 1 ;

[0013] Figure 2 A three-dimensional diagram of the overall structure of the utility model Figure 2 ;

[0014] Figure 3 This is a schematic diagram of a main cross-sectional view of the present utility model;

[0015] Figure 4It is a top view schematic diagram of the utility model;

[0016] Figure 5 This is a bottom view schematic diagram of the present utility model;

[0017] Figure 6 It is an exploded schematic diagram of the present utility model.

[0018] Description of reference numerals:

[0019] 100, multi-finger centring unit; 200, splicing floating lifting unit; 300, clamping area;

[0020] 1. Center pusher; 2. Lower piston; 3. Upper cylinder; 4. Upper piston; 5. Lower cylinder; 6. Upper cover; 7. Piston rod; 8. Floating joint; 9. First plate; 10. Second plate; 11. Countersunk hole; 12. Bevel hole; 13. Threaded mounting hole; 14. Gap; 15. First long slider; 16. Second long slider; 17. First short slider; 18. Second short slider; 19. Slider closing stop; 20. Linear bearing; 21. Upper connecting screw; 22. Lower connecting screw; 23. First upper pipe joint; 24. Second upper pipe joint; 25. First lower pipe joint; 26. Second lower pipe joint; 27. Cover plate;

[0021] 011, driving wedge;

[0022] 31. Install the ring groove of the lower cylinder;

[0023] 61. Center groove; 62. First longitudinal groove; 63. Second longitudinal groove; 64. First short groove; 65. Second short groove; 66. Upper cylinder mounting ring groove;

[0024] 71. movable end; 72. fixed end;

[0025] 81. Install steps;

[0026] 151, first long clamp finger mounting hole;

[0027] 161, second long clamp finger mounting hole;

[0028] 171, first short clamping finger mounting hole;

[0029] 181, second short clamp finger mounting hole;

[0030] 191. Slider connecting block; 192. Adjusting screw mounting block; 193. Adjusting stud;

[0031] 1931. Limit end. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] The following is combined with Figure 1-6 The utility model is further described on the multi-finger synchronous centering glass plate clamp with floating lifting function.

[0034] The utility model discloses a multi-finger synchronous centering glass plate clamp with a floating lifting function, comprising a multi-finger centering unit 100 and a spliced ​​floating lifting unit 200 fixedly connected above and below; the multi-finger centering unit 100 comprises: an upper cover body 6, a middle push 1, an upper cylinder body 3 and an upper piston 4; the upper surface of the upper cover body 6 is provided with a concave central groove 61 and n guide grooves arranged around the central groove 61 and respectively connected to the central groove 61, n being a natural number ≥2, a guide slider being slidably connected in each guide groove, the upper piston 4 being arranged in the upper cylinder body 3 and the two forming a cylinder structure; the upper cylinder body 3 is fixed to the lower part of the upper cover body 6, the upper part of the middle push 1 extends into the central groove 61, and It is connected to the guide slider, and the lower part of the middle push 1 is connected to the upper piston 4; the spliced ​​floating lifting unit 200 includes a lower cylinder body 5, a lower piston 2 and a piston rod 7 which together constitute a cylinder structure, the lower cylinder body 5 is fixed to the lower part of the upper cylinder body 3, the upper part of the piston rod 7 is connected to the upper piston 4, and the lower part of the piston rod 7 extends out of the lower cylinder body 5; the upper and lower ends of the piston rod 7 are respectively a movable end 71 and a fixed end 72, the movable end 71 is connected to the lower piston 2, and the fixed end 72 extends out of the lower cylinder body 5; the lifting and lowering of the upper piston 4 can drive the middle push 1 to rise and fall synchronously, thereby driving all the guide sliders to extend and retract synchronously; the lifting and lowering of the lower cylinder body 5 can drive the multi-finger centring unit 100 to rise and fall synchronously as a whole.

[0035] The components and their functions in this embodiment are described below.

[0036] Regarding the multi-finger centring unit 100: The upper portion of the center pusher 1 forms a sliding connection with each guide slider, with the sliding surface being an inclined surface. This allows the vertical lifting force of the center pusher 1 to be converted into a lateral extension and retraction force for the multiple guide sliders. The guide grooves provide sliding guidance for the guide sliders, controlling their sliding direction. In specific implementation, the number n is selected based on the number of workpiece surfaces to be clamped. The number n is equal to the number of surfaces to be clamped.

[0037] It should be noted that, in specific implementation, the guide slider in this embodiment can form at least three different workpiece clamping structures.

[0038] Structure 1: The guide slider directly serves as the clamping finger for clamping the workpiece, directly contacts the workpiece to clamp and position the workpiece.

[0039] Structure 2: An independent clamping finger is fixedly installed on the upper part of the guide slider. The clamping finger and the guide slider extend and retract synchronously to clamp and position the workpiece.

[0040] Structure 3: The guide slider and the clamping finger are connected by a rocker arm. When the guide slider moves, the rocker arm is driven to swing. The guide slider and the clamping finger move in opposite directions, and finally the clamping finger is pushed to clamp and position the workpiece.

[0041] Regarding the splicing floating lifting unit 200: During use, the fixed end 72 is connected to the component to be fixed, and the lower cylinder 5 is driven by an external air source to achieve lifting and lowering. Because the upper cylinder 3 is fixed to the lower cylinder 5, the guide slide or the clamping finger connected to the guide slide can be raised and lowered synchronously with the lower cylinder 5.

[0042] It should also be noted that the spliced ​​floating lifting unit 200 is a pneumatic cylinder structure. The structure that enables the "lower cylinder 5 to extend and retract under the influence of an external air source" is prior art, and the details of this embodiment are not described without affecting its full disclosure. Similarly, the structure of the multi-finger centring unit 100 that enables the "upper piston 4 to rise and fall, driving the middle thrust 1 to rise and fall synchronously" is prior art, and the details of this embodiment are not described without affecting its full disclosure.

[0043] The multi-finger synchronous centering glass plate gripper with floating lifting function in this embodiment can be used in conjunction with a suction cup. The suction cup is located at the center of the multi-finger synchronous centering glass plate gripper with floating lifting function. Specifically, the suction cup is located within the clamping area 300 surrounded by the guide slider (or the clamping fingers connected to the guide slider) that directly serves as the clamping finger. The specific usage process is as follows:

[0044] Initial position: The lower cylinder 5 in the floating lifting unit 200 is in the lowered state. The guide slider directly serving as the clamping finger or the clamping finger connected to the guide slider is in the open state and is located below the upper surface of the suction cup and maintains sufficient safety space with the cutting head above.

[0045] Place the workpiece: Use the robot to place the workpiece on the suction cup.

[0046] Gripping and centering: The lower cylinder 5 in the spliced ​​floating lifting unit 200 is in the raised position. The guide slider, which directly serves as the gripping finger, or the gripping fingers connected to the guide slider, are aligned with the workpiece in the height direction. The upper piston 4 is actuated, causing the guide slider, which directly serves as the gripping finger, or the gripping fingers connected to the guide slider, to approach and push the outside of the workpiece, thus centering the workpiece.

[0047] Adsorption fixation: Use suction cups to fix the workpiece.

[0048] Return to the initial position: the upper piston 4 moves, so that the guide slider that directly serves as the clamping finger or the clamping finger connected to the guide slider opens, and the lower cylinder body 5 carries the upper cylinder body 3 together with the guide slider that directly serves as the clamping finger or the clamping finger connected to the guide slider and descends as a whole. The guide slider that directly serves as the clamping finger or the clamping finger connected to the guide slider descends to under the glass workpiece and maintains sufficient safety space with the cutting head above.

[0049] In this state, when the cutting head processes the side of the workpiece, it will not hit the guide slide that directly serves as the clamping finger or the clamping finger connected to the guide slide, meeting the needs of glass plate cutting.

[0050] Compared to the prior art, the present invention incorporates a floating lift unit 200 with a lifting function installed beneath the multi-finger centering unit 100. This unit raises the guide sliders, or the fingers connected to them, that directly serve as the gripping fingers. After the workpiece is centered and opened, the guide sliders, or the fingers connected to them, are lowered to clear the cutting head. Adjusting the height of the lower cylinder 5 adjusts the maximum lift stroke of the floating lift unit 200, adapting to the clearance height requirements of different cutting heads.

[0051] According to a specific embodiment of the present invention, the multi-finger synchronous centering glass plate clamp with floating lifting function also includes a floating joint 8 and a joint mounting plate. The center of the joint mounting plate is provided with a countersunk hole 11 running through it. One end of the floating joint 8 has a raised mounting step 81, and the mounting step 81 is installed in the countersunk hole 11. The other end of the floating joint 8 is connected to the fixed end 72. The joint mounting plate is rectangular as a whole, the upper cover body 6 is rectangular as a whole, and the length direction of the joint mounting plate is consistent with the length direction of the upper cover body 6; the four corners of the joint mounting plate are respectively provided with threaded mounting holes 13 running through it; there is a gap 14 between the outer side of the floating joint 8 and the wall of the countersunk hole 11.

[0052] In this embodiment, the floating joint 8 is an existing directly purchased part, which is used to provide a floating connection for the fixed end 72. The floating joint 8 can eliminate errors and prevent the cylinder rod from being stuck.

[0053] It should be noted that if a single floating joint 8 is directly fixed to the fixture, a through-hole for receiving the floating joint 8 must be provided in the fixture. This through-hole can compromise sealing at this location, making it unsuitable for applications requiring a high level of protection. Furthermore, once the through-hole is fixed, the entire fixed end 72 is also fixed, requiring high precision in shape and position to meet assembly requirements. This hinders the assembly and position adjustment of the multi-finger synchronous centering glass plate clamp with floating lifting and lowering capabilities.

[0054] This embodiment, by adding a joint mounting plate, can effectively solve the above-mentioned problems. Specifically, on the one hand, it is only necessary to set a blind screw hole on the part to be fixed, and use a screw to pass through the threaded mounting hole 13 and extend into the thread to achieve the fixing of the joint mounting plate. No through-hole is required on the part to be fixed to ensure sealing. On the other hand, after the joint mounting plate and the part to be fixed are fixedly connected, due to the gap 14 between the outer side of the floating joint 8 and the wall of the countersunk hole 11, the lateral position of the floating joint 8 can be slightly adjusted, greatly improving the flexibility of installation. Moreover, the floating joint 8 is not locked, and the overall force effect is better.

[0055] In addition, setting the length direction of the joint mounting plate to be consistent with the length direction of the upper cover body 6 can reduce the overall width dimension of the multi-finger synchronous centering glass plate clamp with floating lifting function, which is beneficial for arranging multiple multi-finger synchronous centering glass plate clamps with floating lifting function along the width direction when used in combination, thereby reducing the overall size after combination.

[0056] According to a specific embodiment of the present invention, the joint mounting plate is spliced ​​together by a first plate 9 and a second plate 10, and the first plate 9 and the second plate 10 jointly form a countersunk hole 11, and a threaded mounting hole 13 is provided at each end of the first plate 9, and the first plate 9 and the second plate 10 are symmetrical structures to each other.

[0057] In this embodiment, the joint mounting plate is designed as a symmetrical structure, split in half. During assembly, the floating joint 8 is first screwed onto the fixed end 72. The first and second plates 9, 10 are then brought closer together from either side of the floating joint 8 and pressed against the mounting step 81. The first and second plates 9, 10 are then screwed to the fixture. This structure facilitates installation. After determining the position of the floating joint 8, the mounting positions of the first and second plates 9, 10 can be fine-tuned to ensure that the gaps 14 between the floating joint 8 and the sidewalls of the countersunk hole 11 are equal at all locations, further improving the performance of the device.

[0058] According to a specific embodiment of the present invention, n=4, and the four guide grooves are collectively formed into a cross shape, and the four guide grooves are respectively: a first long groove 62, a second long groove 63, a first short groove 64, and a second short groove 65; the first long groove 62 and the second long groove 63 are relatively arranged on both sides of the central groove 61; the first short groove 64 and the second short groove 65 are relatively arranged on both sides of the central groove 61; the lengths of the first long groove 62 and the second long groove 63 are equal; the lengths of the first short groove 64 and the second short groove 65 are equal; the length of the first long groove 62 is greater than the length of the first short groove 64; the guide slider in the first long groove 62 is the first long slider 15; the guide slider in the second long groove 63 is the first short groove 65 Two long sliders 16; the guide slider in the first short groove 64 is the first short slider 17; the guide slider in the second short groove 65 is the second short slider 18; the lengths of the first long slider 15 and the second long slider 16 are equal; the lengths of the first short slider 17 and the second short slider 18 are equal; the top of the first short slider 17 is provided with a first short clamping finger mounting hole 171, and the top of the second short slider 18 is provided with a second short clamping finger mounting hole 181; the top of the first long slider 15 is provided with a first long clamping finger mounting hole 151 on the side away from the center groove 61, and the top of the second long slider 16 is provided with a second long clamping finger mounting hole 161 on the side away from the center groove 61; the length of the first long slider 15 is greater than the length of the first short slider 17.

[0059] Since mobile phone or flat glass is substantially rectangular, that is, when the workpiece is a rectangular glass plate, the four sliders need to enclose a rectangular clamping area 300 .

[0060] In order to achieve the above functions. In this embodiment, two long sliders (first long slider 15 and second long slider 16) are arranged opposite to each other, and two short sliders (first short slider 17 and second short slider 18) are arranged opposite to each other. The long slider is longer, one end of which cooperates with the middle push 1, and the upper part of the other end can be provided with a clamping finger mounting hole farther away from the center groove 61. The clamping finger mounting holes on the two short sliders are closer to the center groove 61. When fixed clamping fingers or swinging clamping finger units of the same structure are respectively installed on the four clamping finger mounting holes, the required rectangular clamping area 300 matching the shape of the rectangular glass plate can be formed. The four fixed clamping fingers or swinging clamping finger units can just clamp the four sides of the rectangular workpiece to achieve centering.

[0061] The two long grooves (the first long groove 62 and the second long groove 63) are arranged opposite to each other, and the two short grooves (the first short groove 64 and the second short groove 65) are arranged opposite to each other. A long slider is arranged in the long groove, and a short slider is arranged in the short groove, so that the slider always slides in the guide groove, ensuring smooth and stable sliding of the slider.

[0062] According to a specific embodiment of the present invention, a slider closing limit block 19 is provided on the side of the first long groove 62 away from the central groove 61; the slider closing limit block 19 includes a slider connecting block 191 and an adjusting screw mounting block 192 fixed to one side of the slider connecting block 191. The slider connecting block 191 and the adjusting screw mounting block 192 together form an "L" shape; the side of the slider connecting block 191 away from the adjusting screw mounting block 192 is fixedly connected to the side of the first long slider 15 away from the central groove 61. The adjusting screw mounting block 192 is located on one side of the upper cover 6. An adjusting stud 193 is provided on the adjusting screw mounting block 192 and extends therethrough. The end of the adjusting stud 193 closest to the upper cover 6 is a limiting end 1931. The limiting end 1931 faces the outer wall of the upper cover 6.

[0063] It should be noted that the multi-finger synchronous centering glass plate gripper with floating lifting function of the present invention has a built-in stopper step within the upper cylinder 3 for limiting the upper piston 4. The piston's travel is directly related to the travel of the middle pusher 1 and the four sliders. Therefore, the maximum extension and retraction travel of the sliders is pre-set.

[0064] The greater the stroke of the guide slider, the wider the size variation range of the glass plate workpiece that can be clamped, which can expand the application range of the utility model.

[0065] When the present invention is used in combination, if the size of the combination needs to be minimized as much as possible, the distance between adjacent multi-finger synchronous centering glass plate clamps with floating lifting function will be reduced. If the clamping fingers are opened according to the maximum stroke, the opening of the clamping fingers in a multi-finger synchronous centering glass plate clamp with floating lifting function may collide with the adjacent multi-finger synchronous centering glass plate clamp with floating lifting function. Therefore, it is necessary to set a clamping finger opening limit adjustment structure.

[0066] The usage scenario of the slider closing limit block 19 structure added in this embodiment is the workpiece clamping structure described in the above-mentioned structure three (Structure three: the guide slider and the clamping finger are connected by a rocker rod, the guide slider moves, driving the rocker rod to swing, and the guide slider and the clamping finger move in opposite directions to clamp and position the workpiece).

[0067] In this embodiment, the slider closing stopper 19 is used to limit the closing stroke of the first long slider 15. Since the four guide sliders move synchronously, a single slider closing stopper 19 can achieve the closing limit of all four sliders, limiting the retraction stroke of the four sliders. By rotating the adjustment screw 193, the gap 14 between the limit end 1931 and the outer wall of the upper cover body 6 can be adjusted, thereby adjusting the retraction stroke of the four sliders.

[0068] Because the guide slider and the gripping fingers in this structure move in opposite directions, controlling the guide slider's retraction stroke controls the gripping finger's opening stroke. This reduces the distance between the two multi-finger synchronous centering glass sheet grippers with floating lifting capabilities during assembly, thus reducing the overall size of the assembly. Furthermore, the slider closing stop 19 is a mechanical stop, preventing collision with adjacent components in the event of overtravel caused by electronic limit failure.

[0069] According to a specific embodiment of the present invention, two diagonal corners of the upper cover 6 are respectively fixedly mounted with a linear bearing 20 passing through it.

[0070] More specifically, the linear bearing 20 is a flanged linear bearing, which is installed through its own flange.

[0071] In this embodiment, the linear bearing 20 is used to provide a lifting guide hole when the upper cover body 6 is lifted or lowered. When used, it is used in conjunction with a linear guide column passing through the linear bearing 20 to improve the stability and smoothness of the lifting of the upper cover body 6.

[0072] According to the specific implementation mode of the present utility model, the upper cylinder body 3 is a cylindrical shape with an open top as a whole, and a recessed upper cylinder mounting ring groove 66 is provided at the bottom of the upper cover body 6, and the upper cylinder mounting ring groove 66 is a step-shaped as a whole. The top of the upper cylinder body 3 is inserted into the upper cylinder mounting ring groove 66, and the upper cylinder body 3 and the upper cover body 6 together form a closed upper cylinder air cavity; the lower part of the upper cylinder body 3 is provided with a recessed lower cylinder mounting ring groove 31, and the lower cylinder mounting ring groove 31 is a step-shaped as a whole. The top of the lower cylinder body 5 is inserted into the lower cylinder mounting ring groove 31, and the lower cylinder body 5 and the upper cylinder body 3 together form a closed lower cylinder air cavity.

[0073] In this embodiment, the upper cover body 6 and the upper cylinder body 3 are combined to form the upper cylinder air cavity, and the upper cylinder body 3 and the lower cylinder body 5 are combined to form the lower cylinder air cavity. The upper and lower adjacent cavity walls are a common structure, which greatly reduces the height size of the entire device and also reduces the volume of the entire device.

[0074] According to the specific implementation mode of the present invention, the outer diameters of the upper cylinder body 3 and the lower cylinder body 5 are the same, and the upper cylinder body 3 and the lower cylinder body 5 are aligned up and down; the multi-finger synchronous centering glass plate clamp with floating lifting function also includes an upper connecting screw 21 and a lower connecting screw 22, the upper connecting screw 21 passes through the upper cover body 6 and extends into the upper cylinder body 3, for fixing the upper cover body 6 and the upper cylinder body 3; the lower connecting screw 22 passes through the lower cylinder body 5 and extends into the upper cylinder body 3, for fixing the lower cylinder body 5 and the upper cylinder body 3; the number of the upper connecting screws 21 and the lower connecting screws 22 are both multiple, and the upper connecting screws 21 and the lower connecting screws 22 are staggered.

[0075] In this embodiment, the upper cover 6, the upper cylinder 3 and the lower cylinder 5 are combined into a whole with two independent air chambers by the upper connecting screws 21 and the lower connecting screws 22. The upper connecting screws 21 and the lower connecting screws 22 are staggered to avoid interference.

[0076] According to the specific implementation mode of the present utility model, the upper piston 4 divides the air cavity of the upper cylinder body 3 into an upper first cavity and an upper second cavity, and the outer side of the upper cylinder body 3 is provided with an upper first pipe joint 23 and an upper second pipe joint 24 respectively connected to the upper first cavity and the upper second cavity; the lower piston 2 divides the air cavity of the lower cylinder body 5 into a lower first cavity and a lower second cavity, and the outer side of the lower cylinder body 5 is provided with a lower first pipe joint 25 and a lower second pipe joint 26 respectively connected to the lower first cavity and the lower second cavity.

[0077] In this embodiment, the upper first pipe joint 23, the upper second pipe joint 24, the lower first pipe joint 25 and the lower second pipe joint 26 are all used to be connected to a pressure gas source.

[0078] According to a specific embodiment of the present invention, the top cover of the center groove 61 is provided with a cover plate 27 for closing the top of the center groove 61, and the upper part of the center push 1 is provided with n driving wedges 011; the end of the guide slider close to the center groove 61 is provided with an inclined hole 12 used in conjunction with the driving wedge 011, and a driving wedge 011 is slidably connected in each inclined hole 12.

[0079] Compared to existing technologies, the present invention incorporates a floating splicing lift unit with a lifting function below the multi-finger centering unit. This allows the guide slider, which directly serves as the gripping finger, or the gripping finger connected to the guide slider, to be raised. After the workpiece is centered and opened, it is lowered to clear the cutting head, thus meeting the centering and clearance requirements for cutting glass plate edges. Furthermore, the present invention features a highly integrated multi-finger centering unit 100 and floating splicing lift unit 200, with upper and lower adjacent panel walls sharing a common structure. This significantly reduces the height and volume of the entire device, resulting in a highly competitive market.

[0080] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A multi-finger synchronous centering glass plate clamp with floating lifting function, characterized in that: It includes a multi-finger centring unit fixedly connected up and down and a spliced ​​floating lifting unit; The multi-finger centring unit includes: an upper cover body, a middle push, an upper cylinder body and an upper piston; the upper surface of the upper cover body is provided with a concave central groove and n guide grooves arranged around the central groove and respectively connected to the central groove, n is a natural number ≥2, and a guide slider is slidably connected in each of the guide grooves, the upper piston is arranged in the upper cylinder body and the two form a cylinder structure; the upper cylinder body is fixed to the lower part of the upper cover body, the upper part of the middle push extends into the central groove and is connected to the guide slider, and the lower part of the middle push is connected to the upper piston; the spliced ​​floating lifting unit It includes a lower cylinder body, a lower piston and a piston rod which together form a cylinder structure, the lower cylinder body is fixed to the lower part of the upper cylinder body, the upper part of the piston rod is connected to the upper piston, and the lower part of the piston rod extends out of the lower cylinder body; the upper and lower ends of the piston rod are respectively a movable end and a fixed end, the movable end is connected to the lower piston, and the fixed end extends out of the lower cylinder body; the lifting and lowering of the upper piston can drive the middle push to rise and fall synchronously, thereby driving all the guide sliders to extend and retract synchronously; the lifting and lowering of the lower cylinder body can drive the multi-finger centring unit to rise and fall synchronously as a whole.

2. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 1 is characterized in that: The multi-finger synchronous centering glass plate clamp with floating lifting function also includes a floating joint and a joint mounting plate. The center of the joint mounting plate is provided with a countersunk hole running through it. One end of the floating joint has a raised mounting step, and the mounting step is installed in the countersunk hole. The other end of the floating joint is connected to the fixed end. The joint mounting plate is rectangular as a whole, and the upper cover body is rectangular as a whole, and the length direction of the joint mounting plate is consistent with the length direction of the upper cover body; the four corners of the joint mounting plate are respectively provided with threaded mounting holes running through it; there is a gap between the outer side of the floating joint and the wall of the countersunk hole.

3. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 2, characterized in that: The joint mounting plate is formed by splicing a first plate and a second plate, and the first plate and the second plate together surround the countersunk hole. A threaded mounting hole is provided at each end of the first plate, and the first plate and the second plate are symmetrical structures.

4. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 3, characterized in that: n=4, and the four guide grooves together form a cross shape, and the four guide grooves are: a first long groove, a second long groove, a first short groove, and a second short groove; the first long groove and the second long groove are relatively arranged on both sides of the central groove; the first short groove and the second short groove are relatively arranged on both sides of the central groove; the lengths of the first long groove and the second long groove are equal; the lengths of the first short groove and the second short groove are equal; the length of the first long groove is greater than the length of the first short groove; the guide slider in the first long groove is a first long slider; the guide slider in the second long groove is a second long slider Slider; the guide slider in the first short-directional groove is the first short slider; the guide slider in the second short-directional groove is the second short slider; the lengths of the first long slider and the second long slider are equal; the lengths of the first short slider and the second short slider are equal; a first short clamping finger mounting hole is provided on the top of the first short slider, and a second short clamping finger mounting hole is provided on the top of the second short slider; a first long clamping finger mounting hole is provided on the side of the top of the first long slider away from the center groove, and a second long clamping finger mounting hole is provided on the side of the top of the second long slider away from the center groove; the length of the first long slider is greater than that of the first short slider.

5. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 4, characterized in that: A slider closing limit block is provided on the side of the first long groove away from the central groove; the slider closing limit block includes a slider connecting block and an adjusting screw mounting block fixed on one side of the slider connecting block, and the slider connecting block and the adjusting screw mounting block together form an "L" shape; the side of the slider connecting block away from the adjusting screw mounting block is fixedly connected to the side of the first long slider away from the central groove, the adjusting screw mounting block is located on one side of the upper cover body, and an adjusting stud passing through it is provided on the adjusting screw mounting block, and the end of the adjusting stud close to the upper cover body is a limiting end; the limiting end is facing the outer wall of the upper cover body.

6. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 5, characterized in that: Two diagonal corners of the upper cover are respectively fixedly mounted with a linear bearing running through them.

7. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 6, characterized in that: The upper cylinder body is generally cylindrical with an open top, and the bottom of the upper cover body is provided with a recessed upper cylinder mounting ring groove, and the upper cylinder mounting ring groove is generally step-shaped. The top of the upper cylinder body is inserted into the upper cylinder mounting ring groove, and the upper cylinder body and the upper cover body together form a closed upper cylinder air cavity; the lower part of the upper cylinder body is provided with a recessed lower cylinder mounting ring groove, and the lower cylinder mounting ring groove is generally step-shaped. The top of the lower cylinder body is inserted into the lower cylinder mounting ring groove, and the lower cylinder body and the upper cylinder body together form a closed lower cylinder air cavity.

8. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 7, characterized in that: The outer diameters of the upper cylinder body and the lower cylinder body are the same, and the upper cylinder body and the lower cylinder body are aligned up and down; the multi-finger synchronous centering glass plate clamp with floating lifting function also includes an upper connecting screw and a lower connecting screw, the upper connecting screw passes through the upper cover body and extends into the upper cylinder body, and is used to fix the upper cover body and the upper cylinder body; the lower connecting screw passes through the lower cylinder body and extends into the upper cylinder body, and is used to fix the lower cylinder body and the upper cylinder body; the number of the upper connecting screws and the lower connecting screws are both multiple, and the upper connecting screws and the lower connecting screws are staggered.

9. The multi-finger synchronous centering glass plate clamp with floating lifting function according to claim 8, characterized in that: The upper piston divides the upper cylinder air cavity into an upper first cavity and an upper second cavity, and an upper first pipe joint and an upper second pipe joint are provided on the outer side of the upper cylinder, which are respectively connected to the upper first cavity and the upper second cavity; the lower piston divides the lower cylinder air cavity into a lower first cavity and a lower second cavity, and a lower first pipe joint and a lower second pipe joint are provided on the outer side of the lower cylinder, which are respectively connected to the lower first cavity and the lower second cavity.

10. The multi-finger synchronous centering glass plate clamp with floating lifting function according to any one of claims 1 to 9, characterized in that: The top cover of the center groove is provided with a cover plate for closing the top of the center groove, and the upper part of the middle push is provided with n driving wedges; the end of the guide slider close to the center groove is provided with an inclined hole for use with the driving wedge, and a driving wedge is slidably connected in each inclined hole.

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