Multi-hand knob universal buffer pressing device

Abstract

The utility model relates to button production technical field, concretely relates to a many hand button general buffer pressing device. Including frame, the inside rotation of frame is equipped with two drive rolls, and the both ends of drive roll all have synchronous pulley fixedly installed coaxially. The utility model, first through pressing mechanism, all buttons on jig are pressed flat to the same plane simultaneously, ensure that the subsequent depth of carving pattern is consistent, and then positioning mechanism utilizes the stable damping force that hydraulic buffer generates when jacking jig, absorbs equipment vibration and makes jig flexible tight pressure on the supporting plate, reduces the tiny displacement and vibration in the process of carving, guarantees the accuracy of pattern position, and the integrated detection mechanism automatically completes quality discrimination, thereby sequentially, automatically completes the whole process from flattening, accurate positioning, carving to detection in a set of system, improves the stability of carving quality while improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of button manufacturing technology, specifically to a universal buffer pressing device for multiple buttons. Background Technology

[0002] In the production of electronic and communication products, in order to efficiently complete the pattern engraving on the surface of buttons, multiple buttons are usually embedded in the same fixture and continuously operated by laser equipment to improve production efficiency. However, since each button has an independent pressing stroke and assembly gap, its top is often difficult to keep on the same precise plane naturally, resulting in inconsistent focal planes during laser engraving, which in turn produces quality defects such as uneven pattern depth and poor clarity.

[0003] In the existing technology, there is a lack of an efficient method to simultaneously flatten all buttons onto the same plane before engraving. At the same time, during the laser engraving process, the operation of the equipment itself will generate high-frequency micro-vibrations. Traditional rigid positioning methods, such as positioning blocks, cylinder pressure heads, etc., have hard contact with the fixture, which lacks buffering and vibration absorption capabilities. Therefore, the vibration generated by the equipment will be directly transmitted to the fixture through these rigid components, thereby inducing the fixed fixture to produce slight displacement or continuous high-frequency vibration. This slight instability will directly cause the laser focus to deviate from the preset engraving position, resulting in quality problems such as blurry patterns, ghosting, or positional errors. In addition, the production process usually requires positioning, engraving, and inspection to be carried out in segments, which is inefficient and difficult to automate the entire process. Summary of the Invention

[0004] The purpose of this invention is to provide a universal multi-button buffer pressing device to solve the problems mentioned in the background art.

[0005] To address the above problems, the present invention aims to provide a universal multi-button buffer pressing device, comprising a frame, inside which two drive rollers are rotatably mounted. Both ends of each drive roller are coaxially fixed with synchronous pulleys. A synchronous belt connects the corresponding synchronous pulleys on the two drive rollers. Three support plates are positioned between the two synchronous belts. A lifting mechanism for driving vertical movement is provided on the lower side of each support plate. A pressing mechanism, a positioning mechanism, and a detection mechanism are sequentially arranged on the upper side of the frame corresponding to the three support plates. The positioning mechanism includes two... Mounting brackets are fixedly installed on both sides of the machine frame. A second cylinder is fixedly installed on the upper side wall of the mounting bracket. A connecting bracket is fixedly installed at the end of the piston rod of the second cylinder. Two hydraulic buffers are symmetrically fixedly installed on the lower side wall of the connecting bracket. When the synchronous belt transports the fixture to the position between the two mounting brackets, the second cylinder drives the connecting bracket to move closer to the middle position of the machine frame, so that the hydraulic buffers move to the top of the fixture. Then, the lifting mechanism drives the corresponding pallet to move up, the pallet supports and lifts the fixture, so that the lower ends of the four hydraulic buffers contact the four corners of the upper side wall of the fixture.

[0006] As a further improvement to this technical solution, the pressing mechanism includes a gantry frame fixedly installed on the upper side wall of the frame, a first cylinder fixedly installed on the upper side wall of the gantry frame, and a pressure plate fixedly installed on the lower end of the piston rod of the first cylinder through the gantry frame.

[0007] As a further improvement to this technical solution, sliders are fixedly installed on both sides of the pressure plate, and guide grooves are opened on the gantry frame at positions corresponding to the two sliders, and the sliders are slidably disposed inside the corresponding guide grooves.

[0008] As a further improvement to this technical solution, the lifting mechanism includes a third cylinder fixedly installed on the lower side wall of the frame, wherein the upper end of the piston rod of the third cylinder slides through the frame and is fixedly connected to the lower side wall of the pallet.

[0009] As a further improvement to this technical solution, two core rods are symmetrically fixedly installed on the lower side wall of the pallet, and a sleeve is slidably sleeved on the core rod. The lower end of the sleeve is fixedly installed on the bottom side inside the frame.

[0010] As a further improvement to this technical solution, the detection mechanism includes an industrial camera fixedly mounted on the upper side of the frame via a lifting frame, with the shooting direction of the industrial camera facing the corresponding tray.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This multi-button universal buffer pressing device first presses all buttons on the fixture to the same plane synchronously through the pressing mechanism, ensuring consistent depth of subsequent engraving patterns. Then, the positioning mechanism uses the stable damping force generated by the hydraulic buffer when lifting the fixture to absorb equipment vibration and flexibly press the fixture tightly onto the support plate, reducing minor displacement and vibration during the engraving process and ensuring the accuracy of the pattern position. Finally, the integrated detection mechanism automatically completes the quality judgment, thus completing the entire process from flattening, precise positioning, engraving to detection in a sequential and automatic manner within a single system. This improves production efficiency while enhancing the stability of engraving quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure and product assembly of this utility model; Figure 2 This is a schematic diagram of the structure of the testing mechanism of this utility model; Figure 3 This is a schematic diagram of the pressing mechanism of this utility model; Figure 4 This is a schematic diagram of part of the structure of this utility model and the product after combination; Figure 5 This is a structural schematic diagram of the product of this utility model; Figure 6 This is a partial structural schematic diagram of the positioning mechanism of this utility model; Figure 7 This is a schematic diagram of the lifting mechanism and the pallet of this utility model.

[0013] The meanings of the labels in the diagram are as follows: 1. Frame; 2. Drive roller; 3. Synchronous belt; 4. Pallet; 5. Pressing mechanism; 51. Gantry frame; 511. Guide groove; 52. First cylinder; 53. Pressure plate; 54. Sliding block; 6. Positioning mechanism; 61. Mounting bracket; 62. Second cylinder; 63. Connecting bracket; 64. Hydraulic buffer; 7. Testing facilities; 71. Elevating scaffolds; 72. Industrial cameras; 8. Lifting mechanism; 81. Third cylinder; 82. Sleeve; 83. Core rod; 9. Product; 91. Fixture; 92. Button; 93. Handle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1. Please refer to Example 1. Figure 1 As shown, the purpose of this embodiment is to provide a multi-button universal buffer pressing device, mainly used for precise positioning of product 9 during laser engraving. (Refer to...) Figure 5 The product 9 includes a square jig 91 with an integrally formed handle 93 at the top center for easy handling by operators. Multiple buttons 92 are embedded around the handle 93 at the top of the jig 91, and patterns need to be engraved on the upper side wall of the buttons 92 using an external laser engraving device.

[0016] This multi-button universal buffer pressing device includes a frame 1. Two drive rollers 2 are rotatably mounted inside the frame 1. A reducer is fixedly mounted on the frame 1, and a servo motor for driving its input shaft is fixedly mounted on the reducer. The output shaft of the reducer is coaxially and fixedly connected to one of the drive rollers 2. Both ends of the drive roller 2 are coaxially and fixedly mounted with synchronous pulleys. A synchronous belt 3 is connected between the corresponding synchronous pulleys on the two drive rollers 2. The distance between the two synchronous belts 3 is less than the width of the fixture 91. When the servo motor is started, its output shaft drives the input shaft of the reducer to rotate. After the reducer reduces the speed and increases the torque, it drives the corresponding drive roller 2 to rotate. The drive roller 2 drives the synchronous pulley to rotate, thereby making the two synchronous belts 3 run synchronously. The operator can place the fixture 91 on the upper surface of the synchronous belt 3 through the handle 93, and the synchronous belt 3 drives the product 9 to be conveyed in the horizontal direction.

[0017] Three trays 4 are arranged between the two synchronous belts 3. A lifting mechanism 8 for driving the vertical movement of the trays 4 is arranged on the lower side. A pressing mechanism 5, a positioning mechanism 6 and a detection mechanism 7 are arranged in sequence on the upper side of the frame 1 corresponding to the three trays 4. An external laser engraving device is installed directly above the positioning mechanism 6. During the process of the synchronous belt 3 conveying the fixture 91, the fixture 91 passes under the pressing mechanism 5, the positioning mechanism 6 and the detection mechanism 7 in sequence.

[0018] The pressing mechanism 5 is used to press all buttons 92 onto the same plane to ensure that the upper surfaces of each button 92 are coplanar, thus ensuring the consistency of the depth of the subsequent laser engraving pattern; the positioning mechanism 6 is used to precisely fix the fixture 91 in the working area of ​​the laser engraving equipment to ensure the accuracy of the engraving position; the inspection mechanism 7 is used to inspect the engraved buttons 92 to distinguish between qualified and unqualified products 9.

[0019] The following details the structure of the lifting mechanism 8, referring to... Figure 7 The lifting mechanism 8 includes a third cylinder 81 fixedly installed on the lower side wall of the frame 1. The upper end of the piston rod of the third cylinder 81 slides through the frame 1 and is fixedly connected to the lower side wall of the pallet 4. Two core rods 83 are symmetrically fixedly installed on the lower side wall of the pallet 4. A sleeve 82 is slidably sleeved on the core rod 83. The lower end of the sleeve 82 is fixedly installed on the bottom side inside the frame 1, thereby restricting the pallet 4 to move only in the vertical direction. An infrared sensor is installed on the frame 1 at the position corresponding to each pallet 4. All infrared sensors, servo motors and the third cylinder 81 are electrically connected to an external control device.

[0020] When the timing belt 3 transports the fixture 91 directly above the pallet 4, the fixture 91 blocks the infrared sensor beam at the corresponding position. The infrared sensor then sends a signal. After receiving the signal, the control device controls the piston rod of the corresponding third cylinder 81 to extend, driving the pallet 4 to rise. At the same time, the servo motor stops running, causing the timing belt 3 to stop. After the pallet 4 contacts the bottom of the fixture 91, it is lifted off the timing belt 3, achieving the pre-positioning.

[0021] The structure of the pressing mechanism 5 is described in detail below, with reference to... Figure 3 The pressing mechanism 5 includes a gantry frame 51 fixedly installed on the upper side wall of the frame 1. A first cylinder 52 is fixedly installed on the upper side wall of the gantry frame 51. One end of the piston rod of the first cylinder 52 slides through the gantry frame 51 and is fixedly installed with a pressure plate 53. The area of ​​the lower side wall of the pressure plate 53 is larger than the area of ​​the upper side wall of the fixture 91. An clearance groove is provided at the bottom of the pressure plate 53 corresponding to the handle 93 to accommodate the handle 93 when the pressure plate 53 is pressed down, thereby ensuring that the bottom surface of the pressure plate 53 can press all the buttons 92 at the same time. Slider 54 is fixedly installed on both sides of the pressure plate 53. Vertical guide grooves 511 are provided on the gantry frame 51 at the positions corresponding to the two sliders 54. The sliders 54 are slidably disposed inside the corresponding guide grooves 511, so that the pressure plate 53 can only move in the vertical direction.

[0022] After the corresponding support plate 4 pre-fixes the fixture 91, the first cylinder 52 drives the pressure plate 53 to press down, and the handle 93 enters the clearance groove, so that the pressure plate 53 contacts the upper side wall of the button 92. Then the pressure plate 53 continues to move down, and the pressure plate 53 flattens each button 92 to the same horizontal plane, and clamps the product 9 together with the support plate 4. After completion, the first cylinder 52 drives the pressure plate 53 to reset, and the lifting mechanism 8 drives the support plate 4 to descend, so that the fixture 91 falls back to the synchronous belt 3 and continues to be transported to the positioning mechanism 6.

[0023] The structure of positioning mechanism 6 is described in detail below, with reference to... Figure 4 and Figure 6The positioning mechanism 6 includes two mounting brackets 61 that are fixedly installed on both sides of the frame 1. A second cylinder 62 is fixedly installed on the upper side wall of the mounting bracket 61. A connecting bracket 63 is fixedly installed at the end of the piston rod of the second cylinder 62. Two hydraulic buffers 64 are fixedly installed symmetrically on the lower side wall of the connecting bracket 63.

[0024] When the synchronous belt 3 transports the fixture 91 to the position between the two mounting brackets 61, the fixture 91 blocks the infrared sensor beam at the corresponding position, the synchronous belt 3 stops operating, and the fixture 91 stays in the current position. The second cylinder 62 drives the connecting bracket 63 to move closer to the middle position of the frame 1, so that the hydraulic buffer 64 moves directly above the fixture 91. Then, the lifting mechanism 8 drives the corresponding pallet 4 to move upward. The pallet 4 supports and lifts the fixture 91, so that the four corners of the upper side wall of the fixture 91 contact the lower ends (i.e., the piston rod ends) of the four hydraulic buffers 64 respectively. Then, the pallet 4 continues to rise, and the fixture 91 lifts the piston rod of the hydraulic buffer 64, so that the hydraulic oil inside is pressurized, thereby generating a stable downward pressure, pressing the fixture 91 tightly onto the pallet 4, ensuring that the product 9 does not shift during the engraving process. The distance between the two connecting brackets 63 is greater than the working area of ​​the laser engraving equipment to avoid interference with the engraving process.

[0025] After the carving is completed, the second cylinder 62 pulls the connecting frame 63 to reset, the lifting mechanism 8 drives the tray 4 to descend, so that the fixture 91 falls back onto the synchronous belt 3 and continues to be transported to the testing mechanism 7.

[0026] The structure of testing organization 7 is detailed below, with reference to... Figure 2 The testing mechanism 7 includes an industrial camera 72 fixedly mounted on the upper side of the frame 1 via a lifting frame 71. The shooting direction of the industrial camera 72 is towards the corresponding pallet 4. After the lifting mechanism 8 drives the pallet 4 to pre-fix the fixture 91, the industrial camera 72 captures an overhead image of the product 9 and transmits the image to an external computer. The computer uses image recognition technology to compare the captured pattern with a preset standard pattern to detect whether the position, clarity and integrity of the pattern meet the requirements, and then automatically determines whether the product 9 is qualified.

[0027] In summary, the first cylinder 52, the second cylinder 62, the third cylinder 81, and the industrial camera 72 are all electrically connected to an external control device. The control device coordinates the timing of the actions of each mechanism, thereby automating the entire engraving and inspection process.

[0028] It should be noted that the entire device should be installed inside a protective housing with inlets and outlets during use. The protective housing will protect the device from impacts and improve its safety.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-button universal buffer pressing device, comprising a frame (1), wherein two drive rollers (2) are rotatably mounted inside the frame (1), and synchronous pulleys are coaxially fixedly mounted at both ends of each drive roller (2), and a synchronous belt (3) is drivingly connected between the corresponding synchronous pulleys on the two drive rollers (2), characterized in that: Three support plates (4) are provided between the two synchronous belts (3). A lifting mechanism (8) for driving vertical movement is provided on the lower side of the support plate (4). A pressing mechanism (5), a positioning mechanism (6) and a detection mechanism (7) are sequentially provided on the upper side of the frame (1) corresponding to the three support plates (4). The positioning mechanism (6) includes two mounting brackets (61) that are fixedly installed on both sides of the frame (1). A second cylinder (62) is fixedly installed on the upper side wall of the mounting bracket (61). A connecting bracket (63) is fixedly installed at the end of the piston rod of the second cylinder (62). Two hydraulic buffers (64) are symmetrically fixedly installed on the lower side wall of the connecting frame (63). When the synchronous belt (3) transports the fixture (91) to the position between the two mounting frames (61), the second cylinder (62) drives the connecting frame (63) to move closer to the middle position of the frame (1), so that the hydraulic buffers (64) move to the top of the fixture (91). Then the lifting mechanism (8) drives the corresponding pallet (4) to move up. The pallet (4) supports and lifts the fixture (91), so that the lower ends of the four hydraulic buffers (64) contact the four corners of the upper side wall of the fixture (91).

2. The universal buffer pressing device for multiple buttons according to claim 1, characterized in that: The pressing mechanism (5) includes a gantry frame (51) fixedly installed on the upper side wall of the frame (1). A first cylinder (52) is fixedly installed on the upper side wall of the gantry frame (51). One end of the piston rod of the first cylinder (52) slides through the gantry frame (51) and is fixedly installed with a pressure plate (53).

3. The multi-button universal buffer pressing device according to claim 2, characterized in that: Both sides of the pressure plate (53) are fixedly installed with sliders (54), and guide grooves (511) are opened on the gantry frame (51) at the positions corresponding to the two sliders (54). The sliders (54) are slidably disposed inside the corresponding guide grooves (511).

4. The universal buffer pressing device for multiple buttons according to claim 1, characterized in that: The lifting mechanism (8) includes a third cylinder (81) fixedly installed on the lower side wall of the frame (1). The upper end of the piston rod of the third cylinder (81) slides through the frame (1) and is fixedly connected to the lower side wall of the support plate (4).

5. The multi-button universal buffer pressing device according to claim 4, characterized in that: Two core rods (83) are symmetrically fixedly installed on the lower side wall of the pallet (4). A sleeve (82) is slidably sleeved on the core rod (83), and the lower end of the sleeve (82) is fixedly installed on the bottom side inside the frame (1).

6. The universal buffer pressing device for multiple buttons according to claim 1, characterized in that: The detection mechanism (7) includes an industrial camera (72) fixedly mounted on the upper side of the frame (1) via a lifting frame (71), and the shooting direction of the industrial camera (72) is facing the corresponding tray (4).

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