Universal clamp for touch screen machining

Abstract

The invention relates to the technical field of touch screen processing, and discloses a universal fixture for touch screen processing, which comprises a support frame and a support table, a plurality of vacuum chucks are arranged on the support table, a slide rail is slidably mounted on the inner side of the support table, the slide rail penetrates through the support table, and the support table is in sliding fit with the slide rail. A reset mechanism enabling the supporting table to reset to the center position of the inner side of the supporting frame is arranged on the supporting frame, a first positioning rod is installed on the supporting frame in a sliding mode, a second positioning rod is installed on one side of the first positioning rod in a sliding mode, and the first positioning rod is perpendicular to the second positioning rod; a sliding fit mechanism of the supporting table and the sliding rail is adopted, so that the supporting table can slide on the sliding rail, the sliding rail can slide on the supporting frame, then the supporting table can move along with the touch screen when the touch screen is positioned and moved, and abrasion caused by relative movement of the touch screen and the supporting table is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen processing, in particular to a universal clamp for touch screen processing. Background Art

[0002] A touch screen is an electronic display device that can detect and respond to touch input. It is widely used in smartphones, tablets, car navigation systems, and various self-service terminals. It enables human-computer interaction by allowing users to directly touch the screen surface with their fingers or specific tools to operate the graphics and menus on the interface. The touch screen processing fixture is a device specially designed to fix and position the touch screen during the touch screen manufacturing process to ensure processing accuracy and efficiency. These fixtures usually have high-precision positioning functions and can firmly fix the touch screen.

[0003] Chinese patent CN108058114B discloses a universal screen positioning fixture; technical problems solved: in view of the technical problems mentioned in the background technology that there is no universal fixture on the market that can adapt to various display touch screens, and the process of positioning the surface and inner layers of the screen consumes too much time and mold costs. The adopted technical solution: a universal screen positioning fixture, including a support platform, a reference positioning block, a top positioning frame, a bottom positioning frame, a front top positioning block, a rear top positioning block, a rear bottom positioning block, a right top positioning block, a right bottom positioning block, a platform bracket, an electric push rod and a vacuum pump. Advantages: The universal screen positioning fixture can position screens of various models during screen separation and assembly, improves the efficiency of screen maintenance, reduces the cost of positioning the screen, simplifies the process of screen maintenance, and can automatically position with high positioning accuracy. It adopts panel operation and is simple and easy to use.

[0004] Chinese patent CN114851116A discloses a screen disassembly device. The screen disassembly device includes a carrier, a fixing component, a processing component and a lifting component. The carrier is used to carry the product to be disassembled; the fixing component is placed on the carrier to fix the product; the processing component is located above the carrier, and the processing component includes a heating element and an adsorption head. A channel is vertically provided on the heating element, and the adsorption head is located in the channel and spaced from the heating element. The adsorption head is configured to have a first position in which its bottom surface is higher than the bottom surface of the heating element and a second position in which its bottom surface is flush with the bottom surface of the heating element; the lifting component can drive the processing component to rise or fall so as to make the processing component close to or away from the screen of the product. The invention reduces the contact time between the adsorption head and the heated screen, reduces the heat conducted from the screen to the adsorption head, reduces the possibility of gas leakage, ensures the efficiency of screen disassembly, and ensures the durability of the device.

[0005] As shown in the above CN108058114B, this solution adopts placing the touch screen on the support platform, and using the positioning block and other structures to push the touch screen to slide on the support platform to achieve precise positioning. However, this positioning method causes friction between the touch screen and the support platform during the sliding process relative to the support platform, which may cause wear problems at the contact part between the touch screen and the support platform. Alternatively, the above second patent is adopted to drive the support platform to move by setting a translation component, and then the processing component is used for processing. In order to accurately position the touch screen, the translation component or the processing component needs to move in the horizontal and vertical directions, and because the position of the touch screen adsorbed on the support platform is uncertain, it is still necessary to set a positioning structure for positioning, and it is also necessary to set a visual sensor and other structures to determine whether the positioning is accurate, which makes the preparation cost of the device high. In order to improve the processing accuracy and protect the surface quality of the touch screen, it is necessary to optimize the design of the existing fixture to reduce or eliminate the friction and wear during the sliding process and reduce the preparation cost of the device.

[0006] Therefore, it is necessary to provide a universal fixture for touch screen processing to solve the above technical problems. Summary of the invention

[0007] The object of the present invention is to provide a universal fixture for processing a touch screen, which avoids direct friction between the touch screen and the supporting platform in a traditional fixture, thereby reducing the risk of wear.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: a universal fixture for touch screen processing, comprising a support frame and a support table, a plurality of vacuum suction cups are arranged on the support table, a slide rail is slidably installed on the inner side of the support table, the slide rail passes through the support table, and the support table and the slide rail are slidably matched, a reset mechanism is arranged on the support frame to reset the support table to the center position of the inner side of the support frame, a first positioning rod is slidably installed on the support frame, a second positioning rod is slidably installed on one side of the first positioning rod, the first positioning rod and the second positioning rod are perpendicular to each other, a driving component for driving the first positioning rod to move is arranged on one side of the support frame, and the first positioning rod A transmission assembly is provided on it for driving the second positioning rod to move; first sliding grooves are provided on both sides of the support frame, and first slide seats are slidably installed in the two first sliding grooves, and the two ends of the slide rail are respectively fixedly connected to the two first slide seats, and the reset mechanism includes a first positioning seat, a second positioning seat, a first spring and a second spring, first positioning seats are provided on both sides of the first slide seat, the first slide seat is slidably arranged in the first sliding groove, and the first slide seat is elastically connected to the inner side wall of the first sliding groove through the first spring, the second positioning seats are respectively arranged on both sides of the support platform, and the second positioning seats are slidably installed on the slide rail, and the second positioning seat is elastically connected to the first slide seat through the second spring.

[0009] The present invention is further configured as follows: the driving assembly includes a mounting frame and an electric push rod, the electric push rod is a multi-stage electric push rod, the mounting frame is fixedly mounted on one side of the support frame, the electric push rod is fixedly mounted on the mounting frame, a push block is fixedly mounted on the output end of the electric push rod, a through hole is provided on the side of the support frame close to the mounting frame for the push block to pass through, an elastic pull rope is fixedly connected to one side of the first positioning rod, the elastic pull rope passes through the side wall of the support frame, and the end of the elastic pull rope away from the first positioning rod is fixedly connected to the mounting frame.

[0010] The present invention is further configured as follows: the transmission assembly includes a third spring and an adjustment rope, a third slide groove is provided at the bottom of the first positioning rod, a third slide seat is slidably installed in the third slide groove, one end of the second positioning rod is fixedly connected to the third slide seat, the third slide seat is elastically connected to the inner side wall of the third slide groove through the third spring, one end of the adjustment rope is fixedly connected to the third slide seat, and the other end of the adjustment rope extends from the side wall of the first positioning rod.

[0011] The present invention is further configured as follows: a positioning cylinder is fixedly installed on the side wall of the support frame close to the mounting frame, one end of the adjustment rope penetrates the side wall of the support frame and extends into the positioning cylinder, and a locking bolt for locking the adjustment rope is provided on the positioning cylinder.

[0012] The present invention is further configured as follows: a first traction rope is fixedly connected to one side of the first positioning seat, a first mounting plate is fixedly installed on one side of the support frame, a first connecting shaft is rotatably installed on the first mounting plate, two first rope winding wheels are fixedly mounted on the first connecting shaft, and one end of the first traction rope away from the first positioning seat is fixedly connected to the first rope winding wheel.

[0013] The present invention is further configured as follows: an adjustment plate is slidably installed on the inner side of the mounting frame, the output end of the electric push rod passes through the adjustment plate, and the adjustment plate and the output end of the electric push rod are slidably matched, a fourth spring is arranged between the adjustment plate and the push block, the adjustment plate is elastically connected to the push block through the fourth spring, a winding roller is fixedly sleeved on the top of the first connecting shaft, a traction belt is wound around the winding roller, a guide roller is rotatably installed on the side wall of the mounting frame, and an end of the traction belt away from the winding roller is wrapped around the guide roller and fixedly connected to the end of the adjustment plate.

[0014] The present invention is further configured as follows: a second mounting plate is fixedly mounted on the first slide, a second connecting shaft is rotatably mounted on the second mounting plate, a second connecting shaft is fixedly sleeved with a second rope winding wheel, a second rope winding wheel is fixedly connected to a second traction rope, the second traction rope passes through the first slide and is fixedly connected to the second positioning seat, a worm gear is fixedly mounted on one end of the second connecting shaft, a worm gear is rotatably mounted on one side of the first slide, the worm gear is meshed with the worm gear, a gear is fixedly mounted on one end of the worm gear, a rack is meshed at the bottom of the gear, and one end of the rack is fixedly connected to one of the first positioning seats.

[0015] The present invention is further configured as follows: second slide seats are fixedly mounted on both ends of the first positioning rod, second slide grooves are opened on both sides of the top of the support frame, and two second slide seats are slidably mounted in the two second slide grooves respectively.

[0016] The present invention is further configured as follows: a stop rod is fixedly installed on the top of the first positioning seat, a stop block is arranged on one side of the stop rod, and the stop block is fixedly connected to the side wall of the support frame. When the two first positioning seats are in contact with the first sliding seat, the stop rod and the stop block are fitted, and at this time the first sliding seat is located in the middle position of the first sliding groove.

[0017] In summary, the present invention has the following beneficial effects: the present invention adopts a sliding cooperation mechanism between the support table and the slide rail, so that the support table can slide on the slide rail, and the slide rail can slide on the support frame, so that when the touch screen is positioned and moved, the support table can move with the touch screen, thereby avoiding wear caused by the relative movement of the touch screen and the support table, and through the coordinated action of the first positioning rod and the second positioning rod, the touch screen is accurately positioned, ensuring the stability and reliability of the processing process. At the same time, the setting of the reset mechanism enables the support table to automatically reset to the center position after the touch screen is removed, further improving the operating efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A; Figure 3 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at B; Figure 5 It is a schematic diagram of the top view of the structure of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention after removing the support frame; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at C; Figure 8 It is a schematic structural diagram of the first positioning seat, the first spring and the first traction rope of the present invention; Fig. 9 It is a schematic structural diagram of the driving assembly, the first positioning rod and the second positioning rod of the present invention; Fig.10 is a schematic cross-sectional structural diagram of a first positioning rod of the present invention; Fig.11 It is a schematic structural diagram of the second positioning seat, the second rope winding wheel, the worm wheel and the worm of the present invention.

[0019] In the figure: 1, support frame; 101, first slide groove; 102, second slide groove; 103, through hole; 2, slide rail; 3, first slide seat; 4, support table; 5, vacuum suction cup; 6, first positioning rod; 601, third slide groove; 7, second slide seat; 8, second positioning rod; 9, third slide seat; 10, third spring; 11, adjustment rope; 12, positioning cylinder; 13, locking bolt; 14, first positioning seat; 15, stop rod; 16, stop block; 17, first spring; 18, first traction rope; 19, guide wheel; 20, mounting frame; 21, electric push rod; 22, push block; 23, fourth spring; 24, elastic pull rope; 25, adjustment plate; 26, guide roller; 27, traction belt; 28, first mounting plate; 29, first connecting shaft; 30, first rope winding wheel; 31, winding roller; 32, second positioning seat; 33, second spring; 34, second traction rope; 35, second mounting plate; 36, second connecting shaft; 37, second rope winding wheel; 38, worm wheel; 39, worm; 40, gear; 41, rack. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 6In an embodiment of the present invention, a universal fixture for processing a touch screen includes a support frame 1 and a support table 4, a slide rail 2 is slidably installed on the inner side of the support table 4, the slide rail 2 passes through the support table 4, and the support table 4 and the slide rail 2 are slidably matched, a plurality of vacuum suction cups 5 are arranged on the support table 4, a reset mechanism for resetting the support table 4 to the center position of the inner side of the support frame 1 is arranged on the support frame 1, a first positioning rod 6 is slidably installed on the support frame 1, a second positioning rod 8 is slidably installed on one side of the first positioning rod 6, the first positioning rod 6 and the second positioning rod 8 are perpendicular to each other, a driving component for driving the first positioning rod 6 to move is arranged on one side of the support frame 1, a transmission component for driving the second positioning rod 8 to move is arranged on the first positioning rod 6, and second slide seats 7 are fixedly installed at both ends of the first positioning rod 6, second slide grooves 102 are opened on both sides of the top of the support frame 1, and two second slide seats 7 are respectively slidably installed in the two second slide grooves 102, so as to realize the sliding connection between the first positioning rod 6 and the support frame 1; The support frame 1 is provided with a first slide groove 101 on both sides, and the first slide seat 3 is slidably installed in the two first slide grooves 101. The two ends of the slide rail 2 are respectively fixedly connected to the two first slide seats 3. The reset mechanism includes a first positioning seat 14, a second positioning seat 32, a first spring 17 and a second spring 33. The first slide seat 3 is provided with a first positioning seat 14 on both sides, and the first slide seat 3 is slidably arranged in the first slide groove 101, and the first slide seat 3 is elastically connected to the inner side wall of the first slide groove 101 through the first spring 17. The second positioning seats 32 are respectively arranged on both sides of the support platform 4, and the second positioning seats 32 are slidably installed on the slide rail 2. The second positioning seat 32 is elastically connected to the first slide seat 3 through the second spring 33. Through the arrangement of the first positioning seat 14 and the second positioning seat 32, when the touch screen is removed from the support platform 4, under the elastic action of the first spring 17 and the second spring 33, the support platform 4 can be reset to the center position inside the support frame 1.

[0022] During specific use, the touch screen is placed on the support table 4, the touch screen is adsorbed by the vacuum suction cup 5, and then the first positioning rod 6 is driven to move, so that the first positioning rod 6 pushes the touch screen to move. At the same time, when the first positioning rod 6 moves, the second positioning rod 8 is driven to move by the transmission assembly. Under the joint push of the first positioning rod 6 and the second positioning rod 8, the touch screen moves to fit with the two adjacent inner walls of the support frame 1, thereby realizing the positioning of the touch screen. Since the support table 4 can slide on the slide rail 2, and the slide rail 2 can slide on the support frame 1, when the touch screen is positioned and moved, the support table 4 can move with the touch screen, thereby avoiding wear caused by the relative movement of the touch screen and the support table 4, improving the positioning accuracy of the device, and avoiding damage to the touch screen caused by the positioning process.

[0023] See also Figure 2 , Fig. 9 and Fig.10 In the embodiment of the present invention, the driving assembly includes a mounting frame 20 and an electric push rod 21, the electric push rod 21 is a multi-stage electric push rod 21, the mounting frame 20 is fixedly mounted on one side of the support frame 1, the electric push rod 21 is fixedly mounted on the mounting frame 20, a push block 22 is fixedly mounted on the output end of the electric push rod 21, a through hole 103 for the push block 22 to pass through is provided on the side of the support frame 1 close to the mounting frame 20, an elastic pull rope 24 is fixedly connected to one side of the first positioning rod 6, the elastic pull rope 24 passes through the side wall of the support frame 1, and the end of the elastic pull rope 24 away from the first positioning rod 6 is fixedly connected to the mounting frame 20; when the output end of the electric push rod 21 is extended, the electric push rod 21 pushes the push block 22 through the through hole 103, so that the push block 22 contacts the first positioning rod 6, and then the first positioning rod 6 can be pushed to move, and when the output end of the electric push rod 21 is contracted, under the tension of the elastic pull rope 24, the first positioning rod 6 can move toward the direction close to the mounting frame 20, so that the first positioning rod 6 is reset.

[0024] In the present embodiment, preferably, the transmission assembly includes a third spring 10 and an adjusting rope 11, a third slide groove 601 is provided at the bottom of the first positioning rod 6, a third slide seat 9 is slidably installed in the third slide groove 601, one end of the second positioning rod 8 is fixedly connected to the third slide seat 9, the third slide seat 9 is elastically connected to the inner wall of the third slide groove 601 through the third spring 10, one end of the adjusting rope 11 is fixedly connected to the third slide seat 9, the other end of the adjusting rope 11 extends from the side wall of the first positioning rod 6, a positioning cylinder 12 is fixedly installed on the side wall of the support frame 1 close to the mounting frame 20, one end of the adjusting rope 11 penetrates the side wall of the support frame 1 and extends into the positioning cylinder 12, the positioning cylinder 12 A locking bolt 13 is provided on it for locking the adjusting rope 11; when the first positioning rod 6 moves in a direction away from the mounting frame 20, since one end of the adjusting rope 11 is fixed on the positioning cylinder 12, the third slide seat 9 moves in a direction close to the inner side of the third slide groove 601 under the pulling force of the adjusting rope 11, thereby driving the second positioning rod 8 to move, thereby realizing that when the first positioning rod 6 moves, the second positioning rod 8 is driven to move by the transmission assembly. Through the setting of the positioning cylinder 12 and the locking bolt 13, when the locking bolt 13 is loosened, the end of the adjusting rope 11 can move, so that the initial position of the third slide seat 9 can be adjusted, so that the device can fix touch screens of different sizes to improve the scope of application.

[0025] In this embodiment, preferably, refer to Figure 4A blocking rod 15 is fixedly installed on the top of the first positioning seat 14, and a blocking block 16 is arranged on one side of the blocking rod 15. The blocking block 16 is fixedly connected to the side wall of the support frame 1. When the two first positioning seats 14 are in contact with the first slide seat 3, the blocking rod 15 fits with the blocking block 16, and at this time the first slide seat 3 is located in the middle position of the first slide groove 101, thereby positioning the first positioning seat 14 so that the first slide seat 3 can be reset to the middle position of the first slide groove 101.

[0026] Due to the arrangement of the first spring 17 and the second spring 33, after the support platform 4 moves, when the first spring 17 and the second spring 33 are in compression, the pressure exerted by the touch screen on the first positioning rod 6 and the second positioning rod 8 will increase, thereby making the edge of the touch screen susceptible to damage by pressure. In order to solve this problem, the following embodiments are provided.

[0027] See also Figures 3 to 8 and Fig.11In the embodiment of the present invention, a first traction rope 18 is fixedly connected to one side of the first positioning seat 14, a first mounting plate 28 is fixedly installed on one side of the support frame 1, a first connecting shaft 29 is rotatably installed on the first mounting plate 28, two first rope winding wheels 30 are fixedly mounted on the first connecting shaft 29, and one end of the first traction rope 18 away from the first positioning seat 14 is fixedly connected to the first rope winding wheel 30. Specifically, the first traction rope 18 close to the side of the mounting frame 20 passes through the side wall of the support frame 1 and is fixedly connected to the first rope winding wheel 30 located below, away from the mounting frame 20. The first traction rope 18 on one side is passed around the guide wheel 19 installed on one side of the support frame 1, and then passes through the frame wall of the support frame 1 and is fixedly connected to the rope winding wheel located above. An adjustment plate 25 is slidably installed on the inner side of the mounting frame 20. The output end of the electric push rod 21 passes through the adjustment plate 25, and the adjustment plate 25 and the output end of the electric push rod 21 are slidably matched. A fourth spring 23 is arranged between the adjustment plate 25 and the push block 22. The adjustment plate 25 is elastically connected to the push block 22 through the fourth spring 23. A winding roller 31 is fixedly sleeved on the top of the first connecting shaft 29. The winding roller 31 is wound with a traction belt 27, and the side wall of the mounting frame 20 is rotatably mounted with a guide roller 26. The end of the traction belt 27 away from the winding roller 31 is passed around the guide roller 26 and is fixedly connected to the end of the adjustment plate 25. When the output end of the electric push rod 21 just begins to extend, the push block 22 first pulls the adjustment plate 25 to move through the fourth spring 23. When the adjustment plate 25 moves, it pulls the traction belt 27 to move, so that the traction belt 27 is released from the winding roller 31, and then the winding roller 31 drives the first connecting shaft 29 to rotate, thereby driving the first rope pulley 30 to rotate, so that the first One end of the traction rope 18 is gradually wound around the first rope winding wheel 30, thereby pulling the first positioning seat 14 to move, so that the two first positioning seats 14 gradually move away from the first slide seat 3; as the push block 22 passes through the through hole 103, the fourth spring 23 is gradually stretched, and the adjustment plate 25 stops moving, so that before the first positioning rod 6 starts to move, the position adjustment of the first positioning seat 14 and the second positioning seat 32 is completed, and the movement of the first positioning rod 6, the second positioning rod 8, the first positioning seat 14 and the second positioning seat 32 is realized by only one electric push rod 21, which reduces the cost and improves the synchronization; A second mounting plate 35 is fixedly mounted on the first slide 3, a second connecting shaft 36 is rotatably mounted on the second mounting plate 35, a second connecting shaft 36 is fixedly sleeved with a second rope winding wheel 37, a second traction rope 34 is fixedly connected to the second rope winding wheel 37, the second traction rope 34 passes through the first slide 3 and is fixedly connected to the second positioning seat 32, a worm gear 38 is fixedly sleeved on one end of the second connecting shaft 36, a worm 39 is rotatably mounted on one side of the first slide 3, the worm gear 38 meshes with the worm 39, a gear 40 is fixedly mounted on one end of the worm 39, a rack 41 meshes with the bottom of the gear 40, and one end of the rack 41 is fixedly connected to one of the first positioning seats 14; when the first positioning seat 14 moves in a direction away from the first slide 3, the rack 41 is fixedly connected to the second positioning seat ... 41 drives the gear 40 to rotate, and when the gear 40 rotates, it drives the worm 39 to rotate, and when the worm 39 rotates, it drives the worm wheel 38 to rotate, thereby driving the second rope winding wheel 37 to rotate through the second connecting shaft 36, so that the second traction rope 34 is gradually wound around the second rope winding wheel 37, and then the second positioning seat 32 is pulled to move, so that the second positioning seat 32 is away from the support platform 4, so that when the support platform 4 slides subsequently, the elastic force of the first spring 17 and the second spring 33 will not act on the support platform 4, thereby reducing the relative pressure between the first positioning rod 6 and the second positioning rod 8 and the side wall of the touch screen, so as to avoid the side wall of the touch screen being damaged by excessive pressure; through the setting of the worm wheel 38 and the worm 39, after the rack 41 is separated from the gear 40, the worm wheel 38 can self-lock to prevent the second positioning seat 32 from resetting.

[0028] Working principle: place the touch screen on the support table 4, adsorb the touch screen through the vacuum suction cup 5, and then extend the output end of the electric push rod 21, the electric push rod 21 pushes the push block 22 through the through hole 103, so that the push block 22 contacts the first positioning rod 6, and then the first positioning rod 6 can be pushed to move, so that the first positioning rod 6 pushes the touch screen to move. At the same time, when the first positioning rod 6 moves in the direction away from the mounting frame 20, since one end of the adjusting rope 11 is fixed on the positioning cylinder 12, the third slide seat 9 moves in the direction close to the inner side of the third slide groove 601 under the pulling force of the adjusting rope 11, and then drives the second positioning rod 8 to move. Under the joint push of the first positioning rod 6 and the second positioning rod 8, the touch screen moves to fit the two inner walls of the support frame 1, thereby realizing the positioning of the touch screen. At the same time, when the output end of the electric push rod 21 just begins to extend, the push block 22 first pulls the adjustment plate 25 to move through the fourth spring 23. When the adjustment plate 25 moves, it pulls the traction belt 27 to move, so that the traction belt 27 is released from the winding roller 31, and then the winding roller 31 drives the first connecting shaft 29 to rotate, thereby driving the first rope winding wheel 30 to rotate, so that one end of the first traction rope 18 is gradually wound around the first rope winding wheel 30, thereby pulling the first positioning seat 14 to move, so that the two first positioning seats 14 gradually move away from the first slide 3. When the first positioning seat 14 moves in the direction away from the first slide 3, the rack 41 drives the gear 4 0 rotates, and when the gear 40 rotates, the worm 39 is driven to rotate, and when the worm 39 rotates, the worm wheel 38 is driven to rotate, thereby driving the second rope winding wheel 37 to rotate through the second connecting shaft 36, so that the second traction rope 34 is gradually wound around the second rope winding wheel 37, thereby pulling the second positioning seat 32 to move, so that the second positioning seat 32 is away from the support platform 4, so that when the support platform 4 slides subsequently, the elastic force of the first spring 17 and the second spring 33 will not act on the support platform 4, thereby reducing the relative pressure between the first positioning rod 6 and the second positioning rod 8 and the side wall of the touch screen, so as to avoid the side wall of the touch screen being damaged by excessive pressure.

[0029] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A universal fixture for processing a touch screen, comprising a support frame (1) and a support table (4), wherein a plurality of vacuum suction cups (5) are arranged on the support table (4), and characterized in that: A slide rail (2) is slidably mounted on the inner side of the support platform (4), the slide rail (2) passes through the support platform (4), and the support platform (4) and the slide rail (2) are slidably matched, a reset mechanism for resetting the support platform (4) to the central position of the inner side of the support frame (1) is provided on the support frame (1), a first positioning rod (6) is slidably mounted on the support frame (1), a second positioning rod (8) is slidably mounted on one side of the first positioning rod (6), the first positioning rod (6) and the second positioning rod (8) are perpendicular to each other, a driving component for driving the first positioning rod (6) to move is provided on one side of the support frame (1), and a transmission component for driving the second positioning rod (8) to move is provided on the first positioning rod (6); both sides of the support frame (1) are provided with a first slide groove (101), two A first slide seat (3) is slidably mounted in each of the first slide grooves (101); both ends of the slide rail (2) are fixedly connected to the two first slide seats (3); the reset mechanism comprises a first positioning seat (14), a second positioning seat (32), a first spring (17) and a second spring (33); first positioning seats (14) are arranged on both sides of the first slide seat (3); the first slide seat (3) is slidably mounted in the first slide groove (101); the first slide seat (3) is elastically connected to the inner side wall of the first slide groove (101) through the first spring (17); the second positioning seats (32) are respectively arranged on both sides of the support platform (4); the second positioning seats (32) are slidably mounted on the slide rail (2); the second positioning seats (32) are elastically connected to the first slide seat (3) through the second spring (33).

2. The universal fixture for processing a touch screen according to claim 1, characterized in that: The driving assembly comprises a mounting frame (20) and an electric push rod (21), the electric push rod (21) being a multi-stage electric push rod (21), the mounting frame (20) being fixedly mounted on one side of a support frame (1), the electric push rod (21) being fixedly mounted on the mounting frame (20), a push block (22) being fixedly mounted on the output end of the electric push rod (21), a through hole (103) for the push block (22) to pass through being provided on a side of the support frame (1) close to the mounting frame (20), an elastic pull rope (24) being fixedly connected to one side of the first positioning rod (6), the elastic pull rope (24) penetrating a side wall of the support frame (1), and an end of the elastic pull rope (24) away from the first positioning rod (6) being fixedly connected to the mounting frame (20).

3. The universal fixture for processing a touch screen according to claim 2, characterized in that: The transmission assembly comprises a third spring (10) and an adjusting rope (11); a third slide groove (601) is provided at the bottom of the first positioning rod (6); a third slide seat (9) is slidably installed in the third slide groove (601); one end of the second positioning rod (8) is fixedly connected to the third slide seat (9); the third slide seat (9) is elastically connected to the inner side wall of the third slide groove (601) through the third spring (10); one end of the adjusting rope (11) is fixedly connected to the third slide seat (9); and the other end of the adjusting rope (11) extends from the side wall of the first positioning rod (6).

4. The universal fixture for processing a touch screen according to claim 3, characterized in that: A positioning cylinder (12) is fixedly mounted on a side wall of the support frame (1) close to the mounting frame (20); one end of the adjustment rope (11) penetrates through the side wall of the support frame (1) and extends into the positioning cylinder (12); a locking bolt (13) for locking the adjustment rope (11) is provided on the positioning cylinder (12).

5. The universal fixture for processing a touch screen according to claim 2, characterized in that: A first traction rope (18) is fixedly connected to one side of the first positioning seat (14), a first mounting plate (28) is fixedly mounted to one side of the support frame (1), a first connecting shaft (29) is rotatably mounted on the first mounting plate (28), two first rope winding wheels (30) are fixedly mounted on the first connecting shaft (29), and one end of the first traction rope (18) away from the first positioning seat (14) is fixedly connected to the first rope winding wheel (30).

6. The universal fixture for processing a touch screen according to claim 5, characterized in that: An adjusting plate (25) is slidably mounted on the inner side of the mounting frame (20); the output end of the electric push rod (21) passes through the adjusting plate (25), and the adjusting plate (25) and the output end of the electric push rod (21) are slidably matched; a fourth spring (23) is arranged between the adjusting plate (25) and the push block (22); the adjusting plate (25) is elastically connected to the push block (22) via the fourth spring (23); a winding roller (31) is fixedly sleeved on the top of the first connecting shaft (29); a traction belt (27) is wound around the winding roller (31); a guide roller (26) is rotatably mounted on the side wall of the mounting frame (20); an end of the traction belt (27) away from the winding roller (31) passes around the guide roller (26) and is fixedly connected to an end of the adjusting plate (25).

7. The universal fixture for processing a touch screen according to claim 6, characterized in that: A second mounting plate (35) is fixedly mounted on the first slide (3), a second connecting shaft (36) is rotatably mounted on the second mounting plate (35), a second rope winding wheel (37) is fixedly sleeved on the second connecting shaft (36), a second rope winding wheel (37) is fixedly connected to a second traction rope (34), the second traction rope (34) passes through the first slide (3) and is fixedly connected to the second positioning seat (32), a worm gear (38) is fixedly sleeved on one end of the second connecting shaft (36), a worm (39) is rotatably mounted on one side of the first slide (3), the worm gear (38) meshes with the worm gear (39), a gear (40) is fixedly mounted on one end of the worm gear (39), a rack (41) is meshed at the bottom of the gear (40), and one end of the rack (41) is fixedly connected to one of the first positioning seats (14).

8. The universal fixture for processing a touch screen according to claim 1, characterized in that: Second slide seats (7) are fixedly mounted on both ends of the first positioning rod (6), second slide grooves (102) are provided on both sides of the top end of the support frame (1), and two second slide seats (7) are slidably mounted in the two second slide grooves (102) respectively.

9. The universal fixture for processing a touch screen according to claim 7, characterized in that: A blocking rod (15) is fixedly mounted on the top of the first positioning seat (14), a blocking block (16) is arranged on one side of the blocking rod (15), and the blocking block (16) is fixedly connected to the side wall of the support frame (1). When the two first positioning seats (14) are in contact with the first sliding seat (3), the blocking rod (15) and the blocking block (16) are in contact, and at this time, the first sliding seat (3) is located in the middle position of the first sliding groove (101).

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