An adjustable vacuum suction tooling jig

Abstract

A kind of adjustable distance vacuum suction tool jig with high pick-and-place operation efficiency and stable product adsorption, comprising support, position adjusting assembly, adsorption assembly and air pressure control assembly, the support includes horizontal arm, fixed horizontal arm vertically fixed on the horizontal arm and multiple movable horizontal arms, multiple sliding grooves are arranged on the horizontal arm on both sides of the fixed horizontal arm, and each movable horizontal arm is correspondingly slidably embedded in each sliding groove;The position adjusting assembly includes multiple air cylinders, and each air cylinder piston rod is one-to-one connected with each movable horizontal arm;The adsorption assembly includes a first vacuum chuck arranged below the fixed horizontal arm and a second vacuum chuck arranged below each movable horizontal arm;The air pressure control assembly includes a first solenoid valve, a second solenoid valve and a vacuum generator fixed on the horizontal arm, the first solenoid valve is connected with the vacuum generator and controls the on-off of each air cylinder and the vacuum generator, and the second solenoid valve is connected with the vacuum generator and controls the on-off of the first vacuum chuck and the second vacuum chuck and the vacuum generator.

Description

Technical Field

[0001] This utility model relates to the field of glass coating processing technology, and in particular to an adjustable-distance vacuum suction fixture. Background Technology

[0002] In the surface treatment of mobile phone glass covers, an AF coating (Anti-Fingerprint Coating) is often applied to the glass surface to reduce the adhesion of fingerprints and oil stains, and to improve the ease of cleaning. Before forming the AF coating, an AF solution or vapor-deposited pellets made of nano-scale hydrophobic and oleophobic materials needs to be sprayed onto the glass surface to allow these materials to adhere and form the AF coating. During the AF coating process, the product needs to be placed on a specific fixture for processing. After the AF coating is completed, the product needs to be placed in a storage box. Since the spacing between products on the spraying or vapor-depositing fixture is generally smaller than the spacing between products placed in the storage box after coating, and the suction heads of existing suction devices are mostly fixed, it is difficult to batch pick up and place products using a single suction device. Currently, the industry mainly uses workers to use suction pens with both hands simultaneously to pick up and place products, but only two products can be placed on the storage box at a time, resulting in low product picking efficiency. In addition, when using a manual suction pen to pick up the sheets, air leakage may occur due to improper manual operation, which may lead to defects such as scratches, chipping, and breakage caused by the product falling off. Utility Model Content

[0003] Therefore, it is necessary to address the above-mentioned shortcomings by providing an adjustable-distance vacuum suction fixture that offers high efficiency in loading and unloading wafers, stable adsorption of products to reduce the probability of wafer drop.

[0004] An adjustable-distance vacuum suction fixture includes:

[0005] The bracket includes a horizontal arm, a fixed horizontal arm, and multiple movable horizontal arms. The fixed horizontal arm is fixedly connected to the middle of the horizontal arm and is perpendicular to the horizontal arm. Multiple sliding grooves are provided on both sides of the fixed horizontal arm on the horizontal arm. Each movable horizontal arm is parallel to the fixed horizontal arm and is slidably embedded in each sliding groove in a one-to-one correspondence.

[0006] The position adjustment assembly includes multiple cylinders mounted on the horizontal arm, with the piston rod of each cylinder corresponding to each movable horizontal arm to push the movable horizontal arm closer to or away from the fixed horizontal arm.

[0007] The adsorption assembly includes a first vacuum suction cup mounted below the fixed crossarm and a second vacuum suction cup mounted below each movable crossarm; and

[0008] The pneumatic control assembly includes a first solenoid valve, a second solenoid valve, and a vacuum generator fixed on a horizontal arm. The vacuum generator is connected to a cylinder, a first vacuum suction cup, and a second vacuum suction cup. The first solenoid valve is connected to the vacuum generator and controls the on / off state of each cylinder and the vacuum generator. The second solenoid valve is connected to the vacuum generator and controls the on / off state of the first and second vacuum suction cups and the vacuum generator.

[0009] In one embodiment, the dimension of each chute along the length of the horizontal arm is proportional to the distance between the chute and the middle of the horizontal arm.

[0010] In one embodiment, the movable cross arm moves within the groove between a first position away from the fixed cross arm and a second position adjacent to the fixed cross arm; when each movable cross arm moves to the first position, the distance between adjacent movable cross arms is the same as the distance from the fixed cross arm to its adjacent movable cross arm; when each movable cross arm moves to the second position, the distance between adjacent movable cross arms is the same as the distance from the fixed cross arm to its adjacent movable cross arm.

[0011] In one embodiment, a limiting groove is formed on the upper or lower surface of each of the movable cross arms, and the dimension of the limiting groove along the length direction of the movable cross arm is equal to the dimension of the slide along the width direction of the horizontal arm.

[0012] In one embodiment, a connecting block is fixed to the middle of each of the movable cross arms, and the connecting block is fixedly connected to the piston rod of the cylinder.

[0013] In one embodiment, the first solenoid valve is a two-position, five-position normally closed solenoid valve. The air inlet of the first solenoid valve is connected to an external compressed air source. The first working port of the first solenoid valve is connected to the rodless chamber of each cylinder through a first air pipe. The second working port of the first solenoid valve is connected to the rod chamber of each cylinder through a second air pipe. The first exhaust port of the first solenoid valve is connected to the air supply port of the vacuum generator. The second exhaust port of the first solenoid valve is connected to the atmosphere.

[0014] In one embodiment, the first air pipe is connected to the rodless chamber of each cylinder via at least one multi-port pipe, and the second air pipe is connected to the rod chamber of each cylinder via at least one multi-port pipe.

[0015] In one embodiment, the second solenoid valve is a two-position three-way valve. The first port of the second solenoid valve is connected to the suction port of the vacuum generator, the second port of the second solenoid valve is connected to the first vacuum suction cup and the second vacuum suction cup through a third air pipe, and the third port of the second solenoid valve is connected to the atmosphere.

[0016] In one embodiment, the air pressure control assembly further includes a main air pipe and an air chamber mounted on the upper surface of the fixed cross arm. The upper surface of the air chamber has a first air hole located in its middle and communicating with the inner cavity of the air chamber, and a plurality of second air holes surrounding the first air hole and communicating with the inner cavity of the air chamber. One end of the main air pipe is connected to the second air port of the second solenoid valve, and the other end of the main air pipe is connected to the first air hole. The third air pipe includes a plurality of first branch air pipes that are connected to each of the first vacuum suction cups and a plurality of second branch air pipes that are connected to each of the second vacuum suction cups. Some of the second air holes are connected to each of the first branch air pipes, and the remaining second air holes are connected to each of the second branch air pipes.

[0017] In one embodiment, the pneumatic control assembly further includes a first switch for controlling the on / off state of a first solenoid valve and a second switch for controlling the on / off state of a second solenoid valve.

[0018] This utility model discloses an adjustable-distance vacuum suction fixture, which includes a fixed horizontal arm and a movable horizontal arm that slides relative to the horizontal arm on a horizontal arm. A first vacuum suction cup is located at the lower part of the fixed horizontal arm, and a second vacuum suction cup is located at the lower part of the movable horizontal arm. A second solenoid valve controls the generation or release of negative pressure at the first and second vacuum suction cups to grip or release glass slides. The first solenoid valve controls the extension and retraction of the cylinder piston rod, and in conjunction with a sliding groove, limits the position of the movable horizontal arm, allowing the vacuum suction fixture to adapt to various product conditions. The spacing on the spraying or vapor deposition fixture can also accommodate the spacing between the product receiving slots in the glue box, so that the coated products can be placed into the glue box in batches. The first vacuum suction cup on the fixed horizontal arm and the second vacuum suction cup on the movable horizontal arm can simultaneously adsorb glass sheets, realizing the one-time handling of multiple products and improving the efficiency of product handling. Since the glass sheets are adsorbed by vacuum suction cups, the problems of air leakage of suction pen and product falling caused by improper manual operation can be avoided, reducing the probability of product falling and defects such as scratches, chipping, and breakage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the vacuum suction fixture from one perspective in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the vacuum suction fixture from another perspective in one embodiment of the present invention;

[0021] Figure 3 This is a structural schematic diagram of the vacuum suction tooling fixture from another perspective in one embodiment of this utility model;

[0022] Figure 4 This is a top view of a vacuum suction fixture in one embodiment of the present invention. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] This utility model discloses an adjustable-distance vacuum suction fixture. By adjusting the position of each vacuum suction cup, the fixture can accommodate the small spacing of products on the spraying or vapor deposition fixture and the large spacing of products in the glue box. This allows multiple products to be transferred from the spraying or vapor deposition fixture to the glue box at one time, thereby improving the efficiency of product handling. Furthermore, the vacuum suction method enhances the stability of product adsorption and prevents products from falling off.

[0025] For specific details, please refer to... Figure 1-4The vacuum suction fixture of this embodiment includes a support 100, a position adjustment component 200, an adsorption component 300, and a pressure control component 400. The support 100 includes a horizontal arm 110, a fixed horizontal arm 120, and multiple movable horizontal arms 130. The fixed horizontal arm 120 is fixedly connected to the middle of the horizontal arm 110 and is perpendicular to the horizontal arm 110. Multiple sliding grooves 111 are provided on both sides of the fixed horizontal arm 120 on the horizontal arm 110. Each movable horizontal arm 130 is parallel to the fixed horizontal arm 120 and is slidably fitted into each sliding groove 111. The sliding grooves 111 are used to limit the sliding range of the movable horizontal arm 130 along the length direction of the horizontal arm 110. The position adjustment component 200 includes multiple cylinders 210 mounted on the horizontal arm 110. The piston rod of each cylinder 210 is connected to each movable horizontal arm 130 to push the movable horizontal arm 130 closer to or away from the fixed horizontal arm 120. The adsorption assembly 300 includes a first vacuum suction cup 310 installed below the fixed horizontal arm 120 and a second vacuum suction cup 320 installed below each movable horizontal arm 130. The air pressure control assembly 400 includes a first solenoid valve 410, a second solenoid valve 420, and a vacuum generator 430 fixed on the horizontal arm 110. The vacuum generator is connected to the cylinders, the first vacuum suction cup, and the second vacuum suction cup. The first solenoid valve 410 is connected to the vacuum generator 430 and controls the on / off state of each cylinder 210 and the vacuum generator 430. The second solenoid valve 420 is connected to the vacuum generator 430 and controls the on / off state of the first vacuum suction cup 310 and the second vacuum suction cup 320 and the vacuum generator 430. That is, in this embodiment, each cylinder 210 is supplied with negative pressure from the vacuum generator 430 to control the extension and retraction of the piston rod of the cylinder 210, and both the first vacuum suction cup 310 and the second vacuum suction cup 320 are supplied with negative pressure from the vacuum generator 430 to pick up the glass slide. Thus, by controlling the air supply or exhaust into the cylinder 210 via the first solenoid valve 410, the position of the movable horizontal arm 130 can be adjusted so that the second vacuum suction cups 320 on each movable horizontal arm 130 can be aligned with the product on the spraying or vapor deposition fixture when picking up the sheet, and aligned with the product receiving slot in the glue box when placing the sheet. By controlling the on / off connection between the first vacuum suction cup 310, the second vacuum suction cup 320 and the vacuum generator 430 via the second solenoid valve 420, negative pressure is generated or released at the first vacuum suction cup 310 and the second vacuum suction cup 320, so as to pick up the glass sheet from the spraying or vapor deposition fixture and place the glass sheet into the glue box.

[0026] The above-mentioned adjustable vacuum suction tooling fixture is provided with a fixed cross arm 120 and a movable cross arm 130 that can slide relative to the horizontal arm 110 on the horizontal arm 110. A first vacuum chuck 310 is provided at the lower part of the fixed cross arm 120, and a second vacuum chuck 320 is provided at the lower part of the movable cross arm 130. The first solenoid valve 410 can control the expansion and contraction of the piston rod of the cylinder 210, and cooperate with the chute 111 to limit the position of the movable cross arm 130, so that the vacuum suction tooling fixture can not only adapt to the placement distance of products on the spraying or evaporation coating fixture, but also adapt to the distance between the product receiving grooves in the glue box, so as to batch put the products after coating processing into the glue box. The first vacuum chuck 310 on the fixed cross arm 120 and the second vacuum chuck 320 on the movable cross arm 130 can simultaneously adsorb the glass sheets respectively, realizing the pick-up and placement of multiple products at one time, and improving the operation efficiency of product pick-up and placement. Since the glass sheets are adsorbed by means of vacuum chucks, problems such as air leakage of the suction pen and product dropping caused by improper manual operation can be avoided, reducing the probability of product dropping and defects such as scratching, chipping and fragmenting.

[0027] The horizontal arm 110 is used to support the fixed cross arm 120, the movable cross arm 130 and the rest of the components. When there is one movable cross arm 130 on each side of the fixed cross arm 120, the whole bracket 100 has a "rich" - shaped structure. In this embodiment, two movable cross arms 130 are slidably arranged on each side of the fixed cross arm 120, that is, a total of four movable cross arms 130. In other embodiments, the number of movable cross arms 130 can be further increased according to the number of products in the spraying or evaporation coating fixture and the specifications of the glue box, which will not be elaborated here. In addition, according to the distribution of products in the spraying or evaporation coating fixture and the specifications of the glue box, two first vacuum chucks 310 are symmetrically arranged at the lower part of the fixed cross arm 120 or multiple first vacuum chucks 310 are evenly arranged, and two second vacuum chucks 320 are symmetrically arranged at the lower part of the movable cross arm 130 or multiple second vacuum chucks 32o are evenly arranged. Preferably, in this embodiment, two first vacuum chucks 310 are symmetrically arranged at the lower part of the fixed cross arm 120, and two second vacuum chucks 320 are symmetrically arranged at the lower part of the movable cross arm 130. In this way, the vacuum suction tooling fixture can pick up and place 10 glass sheets at one time, greatly improving the operation efficiency of product pick-up and placement. In order to avoid scratching the products during suction, at least the contact surfaces of the first vacuum chuck 310 and the glass sheet and the contact surfaces of the second vacuum chuck 320 and the glass sheet are made of flexible and airtight materials. For example, the first vacuum chuck 310 and the second vacuum chuck 320 are made of silicone rubber to prevent product scratching.

[0028] In one embodiment, a limiting groove 131 is formed on the upper or lower surface of each movable horizontal arm 130. The dimension of the limiting groove 131 along the length of the movable horizontal arm 130 is equal to the dimension of the slide groove 111 along the width of the horizontal arm 110. Thus, by forming the limiting groove 131 on the movable horizontal arm 130, it is possible to prevent the movable horizontal arm 130 from wobbling along the length of the movable horizontal arm 130 during the sliding process on the horizontal arm 110, thereby making it difficult for the second vacuum suction cup 320 to align with the product in the spraying or vapor deposition fixture, or for the product on the second vacuum suction cup 320 to align with the product receiving slot in the glue box, so as to ensure the reliability of the sheet picking and placing operation. Furthermore, a connecting block 140 is fixed in the middle of each movable horizontal arm 130, and the connecting block 140 is fixedly connected to the piston rod of the cylinder 210. Furthermore, the slide groove 111 can be located on either the upper or lower surface of the horizontal arm 110, as long as it limits the sliding range of the movable cross arm 130 on the horizontal arm 110. The drive of the movable cross arm 130 is mainly controlled by the cylinder 210. In this embodiment, the cylinder 210 is fixed to the upper surface of the horizontal arm 110. When the slide groove 111 is located on the lower surface of the horizontal arm 110 and the limiting groove 131 is located on the upper surface of the movable cross arm 130, the connecting block 140 is mounted across the limiting groove 131 and connected to the movable cross arm 130 by screws. At this time, the gravity of the movable cross arm 130, the second vacuum suction cup 320, and the product mainly acts on the connecting block 140 and the screws. When the slide groove 111 is located on the upper surface of the horizontal arm 110 and the limiting groove 131 is located on the lower surface of the movable cross arm 130, the connecting block 140 is fixed to the upper surface of the movable cross arm 130 by screws. Preferably, in this embodiment, the slide groove 111 is formed on the upper surface of the horizontal arm 110, and the limiting groove 131 is formed on the lower surface of the movable horizontal arm 130. In this way, the movable horizontal arm 130 can be supported by the horizontal arm 110 to reduce the load on the connecting block 140 and the screw, and ensure the stability of the entire vacuum suction fixture structure.

[0029] In one embodiment, the dimension of each slide groove 111 along the length of the horizontal arm 110 is proportional to the distance between the slide groove 111 and the middle of the horizontal arm 110. That is, the closer the slide groove 111 is to the fixed horizontal arm 120, the smaller its width, and the smaller the maximum sliding distance of the movable horizontal arm 130 within that slide groove 111; the farther the slide groove 111 is from the fixed horizontal arm 120, the larger its width, and the larger the maximum sliding distance of the movable horizontal arm 130 within that slide groove 111. Thus, when the first solenoid valve 410 is activated, since the air pressure in each cylinder 210 is the same, and the width of the slide grooves 111 is the same, the sliding distance of each movable horizontal arm 130 along the length of the horizontal arm 110 per unit time is the same. However, the product receiving slots in the plastic box used to store products are evenly distributed. In this case, it will be difficult for some products to be aligned with the product receiving slots in the plastic box, thus causing difficulties in placing the products. In this embodiment, by making the dimension of each slide groove 111 along the length of the horizontal arm 110 proportional to the distance between the slide groove 111 and the middle of the horizontal arm 110, when the movable horizontal arm 130, which is farther from the fixed horizontal arm 120, is still sliding away from the fixed horizontal arm 120 under the drive of the cylinder 210, although the movable horizontal arm 130, which is closer to the fixed horizontal arm 120, is still pushed by the piston rod of the cylinder 210, the movable horizontal arm 130 will remain stationary under the constraint of the inner wall of the slide groove 111 on the side opposite to the fixed horizontal arm 120, until all the movable horizontal arms 130 abut against the inner wall of the slide groove 111 on the side opposite to the fixed horizontal arm 120, so as to adapt to the position of the product receiving slot in the plastic box.

[0030] Furthermore, the movable cross arm 130 moves within the slide groove 111 between a first position away from the fixed cross arm 120 (i.e., the position where the movable cross arm 130 is furthest from the fixed cross arm 120 within the slide groove 111) and a second position adjacent to the fixed cross arm 120 (i.e., the position where the movable cross arm 130 is closest to the fixed cross arm 120 within the slide groove 111). When each movable cross arm 130 moves to the first position, the distance between adjacent movable cross arms 130 is the same as the distance from the fixed cross arm 120 to its adjacent movable cross arm 130; when each movable cross arm 130 moves to the second position, the distance between adjacent movable cross arms 130 is the same as the distance from the fixed cross arm 120 to its adjacent movable cross arm 130. Thus, under the constraint of the inner wall of the slide 111, each movable cross arm 130 can adapt to the product placement spacing in the spraying or vapor deposition fixture when sliding to the position closest to the fixed cross arm 120, and can adapt to the spacing of the product receiving slot in the glue box when sliding to the position farthest from the fixed cross arm 120, thereby realizing the batch transfer of products between the spraying or vapor deposition fixture and the glue box.

[0031] In one embodiment, the first solenoid valve 410 is a two-position, five-position normally closed solenoid valve. The inlet of the first solenoid valve 410 is connected to an external compressed air source. The first working port of the first solenoid valve 410 is connected to the rodless chamber of each cylinder 210 via a first air pipe 220. The second working port of the first solenoid valve 410 is connected to the rod chamber of each cylinder 210 via a second air pipe 230. The first exhaust port of the first solenoid valve 410 is connected to the air supply port of the vacuum generator 430, and the second exhaust port of the first solenoid valve 410 is connected to the atmosphere. Further, the first air pipe 220 is connected to the rodless chamber of each cylinder 210 via at least one multi-port pipe 240, and the second air pipe 230 is connected to the rod chamber of each cylinder 210 via at least one multi-port pipe 240. For example, when there is a movable cross arm 130 on each side of the fixed cross arm 120, the end of the first air pipe 220 is connected to a three-way pipe, which is connected to the rodless chamber of each cylinder 210 through two branch pipes; similarly, the end of the second air pipe 230 is connected to a three-way pipe, which is connected to the rod chamber of each cylinder 210 through two branch pipes. When there are two movable cross arms 130 on each side of the fixed cross arm 120, the end of the first air pipe 220 is connected to a five-way pipe, which is connected to the rodless chamber of each cylinder 210 through four branch pipes; the end of the second air pipe 230 is connected to a five-way pipe, which is connected to the rod chamber of each cylinder 210 through four branch pipes. Alternatively, a two-stage tee can be connected to the end of the first air pipe 220. Each of the two outlets of the first-stage tee is connected to a branch pipe, and the end of each branch pipe is connected to the rodless chamber of the corresponding cylinder 210 through two branch pipes. Similarly, a two-stage tee can be connected to the end of the second air pipe 230. Each of the two outlets of the first-stage tee is connected to a branch pipe, and the end of each branch pipe is connected to the rod chamber of the corresponding cylinder 210 through two branch pipes.

[0032] During the operation of each cylinder 210 controlled by the first solenoid valve 410, when the first solenoid valve 410 is in the normally closed state, the air inlet of the first solenoid valve 410 is connected to the air supply port of the vacuum generator 430, and compressed air enters the vacuum generator 430. The rodless chamber of the cylinder 210 is connected to the air extraction port of the vacuum generator 430, drawing air from the rodless chamber of the cylinder 210. At the same time, the rod chamber of the cylinder 210 is connected to the atmosphere. At this time, a vacuum (negative pressure) is formed in the rodless chamber, and the rod chamber is connected to the atmosphere (normal pressure). Under the action of the pressure difference, the piston moves towards the rodless chamber, causing the piston rod to retract. The piston rod of the cylinder 210 then drives the movable horizontal arm 130 to move towards the fixed horizontal arm 120 until it reaches the second position. When the first solenoid valve 410 is pressed, it is de-energized. At this time, the air supply port of the vacuum generator 430 is closed, and the vacuum generator 430 stops working. The rodless chamber of the cylinder 210 is connected to the atmosphere, and the air inlet of the first solenoid valve 410 is connected to the rod chamber of the cylinder 210. Compressed air enters the rod chamber of the cylinder 210, at which point the rod chamber is pressurized (positive pressure), while the rodless chamber is open to the atmosphere (normal pressure). Under the pressure difference, the piston moves towards the rod chamber, causing the piston rod to extend. The piston rod of the cylinder 210 then drives the movable horizontal arm 130 to move away from the fixed horizontal arm 120 until it reaches the first position. It should be noted that in this embodiment, the rod chamber of the cylinder 210 refers to the chamber inside the cylinder 210 where the piston rod extends, while the rodless chamber refers to the chamber inside the cylinder 210 facing away from the piston rod.

[0033] The second solenoid valve 420 is a two-position three-way valve. Its first port is connected to the suction port of the vacuum generator 430, and its second port is connected to the first and second vacuum suction cups 310 and 320 via a third air pipe. The third port is open to the atmosphere. Thus, when the second solenoid valve 420 is energized, the first and second vacuum suction cups 310 and 320 are connected to the suction port of the vacuum generator 430 via the third air pipe, and the third port is closed, creating a negative pressure at the first and second vacuum suction cups 310 and 320 to suck up the product. When the second solenoid valve 420 is de-energized, its first port disconnects from the suction port of the vacuum generator 430, and the third port opens, restoring normal pressure at the first and second vacuum suction cups 310 and 320, allowing the product to be placed down. Furthermore, in this embodiment, the air pressure control assembly 400 also includes a main air pipe 440 and an air chamber 450 mounted on the upper surface of the fixed cross arm 120. The upper surface of the air chamber 450 has a first air hole 451 located in its center and communicating with the inner cavity of the air chamber 450, and a plurality of second air holes 452 surrounding the first air hole 451 and communicating with the inner cavity of the air chamber 450. One end of the main air pipe 440 is connected to the second air port of the second solenoid valve 420, and the other end of the main air pipe 440 is connected to the first air hole 451. The third air pipe includes corresponding connections... Each first vacuum suction cup 310 has multiple first air tubes 460 and multiple second air tubes 470 that are connected to each second vacuum suction cup 320. Some of the second air holes 452 are connected to each first air tube 460, and the remaining second air holes 452 are connected to each second air tube 470. In this way, the air pressure at each first vacuum suction cup 310 and the second vacuum suction cup 320 can be synchronously adjusted, so that multiple first vacuum suction cups 310 and multiple second vacuum suction cups 320 can simultaneously pick up and put down the product.

[0034] In addition, to enable simultaneous evacuation of the cylinder 210, the first vacuum suction cup 310, and the second vacuum suction cup 320 by the vacuum generator 430, a three-way valve is provided at the evacuation port of the vacuum generator 430. The first branch of this three-way valve is connected to the evacuation port of the vacuum generator 430, the second branch is connected to the first solenoid valve 410, and the third branch is connected to the third air pipe, thereby achieving pressure diversion at the output end of the vacuum generator 430. The air pressure control assembly 400 also includes a first switch for controlling the on / off state of the first solenoid valve 410 and a second switch for controlling the on / off state of the second solenoid valve 420. Thus, during the operation of cylinder 210, pressing the first switch disconnects the first solenoid valve 410, controlling the extension of the piston rod of cylinder 210, causing cylinder 210 to push the movable horizontal arm 130 away from the fixed horizontal arm 120. When the first switch is released, the first solenoid valve 410 closes, controlling the retraction of the piston rod of cylinder 210, causing cylinder 210 to move the movable horizontal arm 130 closer to the fixed horizontal arm 120 to reset. Similarly, when the second switch is pressed, the first vacuum suction cup 310 and the second vacuum suction cup 320 are connected to the vacuum generator 430 and generate negative pressure to lift the product. When the second switch is released, the first vacuum suction cup 310 and the second vacuum suction cup 320 are disconnected from the vacuum generator 430 and return to normal pressure, allowing the product to fall into the product receiving slot of the plastic box. Since a large number of air pipes and connectors are arranged around the first and second solenoid valves, in order to reduce the difficulty of operating the first and second switches, two springs corresponding to the first and second switches are fixed on the horizontal arm so that the corresponding switches can be operated by pressing the springs, thereby reducing the difficulty of pressing the first and second switches.

[0035] During the product loading and unloading process, the air pipes are first connected to the vacuum generator 430. When production begins, the products are placed at small intervals on the spraying or vapor deposition fixture. After the spraying is completed, the products need to be placed in the glue box with larger product receiving slots. After the spraying is completed, the operator holds the vacuum suction fixture in their right hand, first pressing each suction cup (first vacuum suction cup 310 and second vacuum suction cup 320) against the center of the product, then pressing the second switch. After each suction cup holds the product, the vacuum suction fixture is lifted and moved towards the glue box. When the vacuum suction fixture moves above the glue box, the first switch is pressed to start the cylinder 210. The piston rod of the cylinder 210 pushes the movable horizontal arm 130, increasing the distance between the products. This continues until all movable horizontal arms 130 move away from the fixed horizontal arm 120 and are aligned with the distance between the glue boxes. At this point, the product is placed into each product receiving slot, the second switch is released to stop suction, and the product naturally falls into the glue box. After the product is placed down, lift the vacuum suction fixture and release the first switch. Each movable horizontal arm 130 will reset under the action of the piston rod so that the next round of picking up and placing of the piece can be repeated.

[0036] It should be noted that in actual use, a robotic arm can also be used to grip the vacuum suction fixture to achieve vertical lifting and horizontal movement of the vacuum suction fixture, allowing it to move between the spraying or vapor deposition fixture and the glue box. Furthermore, a built-in controller can be integrated with a CCD camera, electrically connected to the CCD camera, the first solenoid valve 410, and the second solenoid valve 420. The controller receives image information from the CCD camera and determines the position of the vacuum suction fixture. Once the vacuum suction fixture is in place, the controller controls the start and stop of the first solenoid valve 410 and the second solenoid valve 420, thereby achieving fully automatic loading and unloading of the product.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An adjustable-distance vacuum suction fixture, characterized in that, include: The bracket includes a horizontal arm, a fixed horizontal arm, and multiple movable horizontal arms. The fixed horizontal arm is fixedly connected to the middle of the horizontal arm and is perpendicular to the horizontal arm. Multiple sliding grooves are provided on both sides of the fixed horizontal arm on the horizontal arm. Each movable horizontal arm is parallel to the fixed horizontal arm and is slidably embedded in each sliding groove in a one-to-one correspondence. The position adjustment assembly includes multiple cylinders mounted on the horizontal arm, with the piston rod of each cylinder corresponding to each movable horizontal arm to push the movable horizontal arm closer to or away from the fixed horizontal arm. The adsorption assembly includes a first vacuum suction cup installed below the fixed cross arm and a second vacuum suction cup installed below each movable cross arm; as well as The pneumatic control assembly includes a first solenoid valve, a second solenoid valve, and a vacuum generator fixed on a horizontal arm. The vacuum generator is connected to a cylinder, a first vacuum suction cup, and a second vacuum suction cup. The first solenoid valve is connected to the vacuum generator and controls the on / off state of each cylinder and the vacuum generator. The second solenoid valve is connected to the vacuum generator and controls the on / off state of the first and second vacuum suction cups and the vacuum generator.

2. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, The dimensions of each chute along the length of the horizontal arm are proportional to the distance between the chute and the middle of the horizontal arm.

3. The adjustable-distance vacuum suction fixture according to claim 2, characterized in that, The movable cross arm moves within the slide groove between a first position away from the fixed cross arm and a second position adjacent to the fixed cross arm; when each movable cross arm moves to the first position, the distance between adjacent movable cross arms is the same as the distance from the fixed cross arm to its adjacent movable cross arm; when each movable cross arm moves to the second position, the distance between adjacent movable cross arms is the same as the distance from the fixed cross arm to its adjacent movable cross arm.

4. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, Each of the movable cross arms has a limiting groove on its upper or lower surface, and the dimension of the limiting groove along the length of the movable cross arm is equal to the dimension of the slide along the width of the horizontal arm.

5. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, Each of the movable cross arms has a connecting block fixed in the middle, and the connecting block is fixedly connected to the piston rod of the cylinder.

6. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, The first solenoid valve is a two-position, five-position normally closed solenoid valve. The air inlet of the first solenoid valve is connected to an external compressed air source. The first working port of the first solenoid valve is connected to the rodless chamber of each cylinder through a first air pipe. The second working port of the first solenoid valve is connected to the rod chamber of each cylinder through a second air pipe. The first exhaust port of the first solenoid valve is connected to the air supply port of the vacuum generator. The second exhaust port of the first solenoid valve is connected to the atmosphere.

7. The adjustable-distance vacuum suction fixture according to claim 6, characterized in that, The first air pipe is connected to the rodless chamber of each cylinder through at least one multi-port pipe, and the second air pipe is connected to the rod chamber of each cylinder through at least one multi-port pipe.

8. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, The second solenoid valve is a two-position three-way valve. The first air port of the second solenoid valve is connected to the air extraction port of the vacuum generator. The second air port of the second solenoid valve is connected to the first vacuum suction cup and the second vacuum suction cup through the third air pipe. The third air port of the second solenoid valve is connected to the atmosphere.

9. The adjustable-distance vacuum suction fixture according to claim 8, characterized in that, The air pressure control assembly also includes a main air pipe and an air chamber mounted on the upper surface of the fixed cross arm. The upper surface of the air chamber has a first air hole located in its middle and communicating with the inner cavity of the air chamber, and a plurality of second air holes surrounding the first air hole and communicating with the inner cavity of the air chamber. One end of the main air pipe is connected to the second air port of the second solenoid valve, and the other end of the main air pipe is connected to the first air hole. The third air pipe includes a plurality of first branch air pipes that are connected to each of the first vacuum suction cups and a plurality of second branch air pipes that are connected to each of the second vacuum suction cups. Some of the second air holes are connected to each of the first branch air pipes, and the remaining second air holes are connected to each of the second branch air pipes.

10. The adjustable-distance vacuum suction fixture according to claim 1, characterized in that, The pneumatic control assembly also includes a first switch for controlling the on / off state of the first solenoid valve and a second switch for controlling the on / off state of the second solenoid valve.

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