Multi-process synchronous automatic production servo press for automatically installing skin and frame

Abstract

The servo press of the present disclosure comprises a skin positioning and heating mechanism, a press frame and a truss robot. The skin positioning and heating mechanism is arranged on a product skeleton a through a skeleton overturning mechanism. The product skin b is arranged on a skin placing workbench and is driven to run to a specified position by a workbench advancing cylinder. Then the product skin b is sucked by a first skin sucking mechanism. The heating device of the skin positioning and heating mechanism and the skeleton overturning mechanism enter the press frame under the action of two-stage advancing cylinders. The middle moving platform arranged on the press frame is driven to move downward by a servo motor and the product skeleton a is sucked by a second skin sucking mechanism. Then the product skin b is placed on the lower mold film. The heating device and the skeleton overturning mechanism are reset. The middle moving platform continues to descend so that the upper mold and the lower mold film are combined to perform pressure compounding to obtain a composite skeleton c. Then the truss robot is driven to slide by a truss robot sliding motor. The composite skeleton c is taken out from the press frame and placed on a conveying belt.

Description

Technical Field

[0001] The aforementioned implementation scheme relates to the field of automotive pillar interior panel processing equipment technology, and in particular to a multi-process synchronous automatic production servo press for automatically installing the skin and frame. Background Technology

[0002] Currently, the processing of automotive trim panels requires the composite processing of the frame and the skin. This composite processing involves a series of steps. First, adhesive needs to be applied to the frame and activated to ensure a good composite effect between the frame and the skin. The adhesive activation process requires uniform heating, necessitating a heating device. If manual heating is insufficient, a mold is used for pressure bonding after heating. The heating device and mold pressure bonding steps must be integrated. This technical solution provides a complete set of equipment to address this issue. In the adhesive activation section, a skin positioning and heating mechanism rotates and heats the product frame uniformly. A pusher cylinder then moves the frame to the press frame in the pressure bonding section. The press frame is equipped with a servo motor-controlled, automated pressing mechanism for the upper and lower pressing action. After pressure bonding, a gantry robot retrieves the product, completing the entire process automatically. This effectively ensures the stability and efficiency of the trim panel processing, and the automated processing avoids human error, improving processing quality. Summary of the Invention

[0003] The multi-process synchronous automatic production servo press disclosed herein is used for composite molding processing of the frame and skin of "automotive pillar interior panels". It can automate the processing of multiple products at one time, thereby improving the processing efficiency of the frame and skin.

[0004] The multi-process synchronous automatic production servo press for automatic skin and skeleton installation includes: a skin positioning and heating mechanism, a press frame, and a gantry robot. The skin positioning and heating mechanism includes a heating device, a skeleton flipping mechanism located above the heating device and driven by a flipping cylinder, and a skin placement worktable located below the heating device and driven by a propulsion cylinder. The heating device mainly includes a fixed frame plate and infrared heating lamps. The propulsion cylinder includes a first-stage propulsion cylinder, a second-stage propulsion cylinder, and a worktable propulsion cylinder. A first skin suction mechanism is set at the bottom of the fixed frame plate, and the first skin suction mechanism has a skin suction head for adsorbing the product skin b. The press frame and the skin positioning and heating mechanism are spliced ​​together. The press frame includes an upper mold, a lower mold, a middle moving platform, a lower mold fixing plate, a gear column, a fixing plate connecting shaft, a lifting balance gear plate, a lifting balance slide bar, and a servo motor that drives the upper mold fixing plate to lift. The gantry robot is located on the discharge side of the press frame and connected to one side of the slide rail. It is driven to slide by the gantry robot sliding motor. The gantry robot is equipped with a turntable head, which is connected to a pick-up fixture for placing the composite skeleton c. A conveyor belt for transporting the composite skeleton c is also set below the slide rail. The upper mold and lower mold are fixedly connected to the central moving platform and the lower mold fixing plate, respectively. There are two toothed columns on the two end surfaces of the upper mold fixing plate. The two toothed columns are connected by gears and a motor drive shaft driven by a servo motor. The two ends of the motor drive shaft are equipped with drive shaft gears. The fixing plate connecting shaft passes through the upper part of the upper mold fixing plate. The two ends of the fixing plate connecting shaft pass through the two end surfaces of the upper mold fixing plate and are equipped with synchronous gears. The synchronous gears are connected to the lifting balance gear plate. Two lifting balance slide rods are respectively set at both ends of the press frame. The lifting balance slide rods also penetrate and connect to both ends of the central moving platform.

[0005] The product skeleton a is mounted on the skeleton flipping mechanism of the skin positioning heating mechanism, and the product skin b is mounted on the skin placement worktable. The skin placement worktable is driven to a designated position by the worktable push cylinder, and then the product skin b is picked up by the first skin suction mechanism. The heating device and the skeleton flipping mechanism enter the press frame under the action of the first-stage push cylinder and the second-stage push cylinder. The upper mold fixing plate moves downward under the action of the servo motor and the product skeleton a is picked up by the second skin suction mechanism and placed on the lower mold. The heating device and the skeleton flipping mechanism return to their original positions. The middle moving platform descends to close the upper mold and the lower mold, perform plug-in composite and pressure holding to obtain the composite skeleton c. The gantry robot takes the composite skeleton c out of the press frame and slides it onto the conveyor belt.

[0006] Furthermore, the first-stage propulsion cylinder and the second-stage propulsion cylinder are arranged in parallel. The second-stage propulsion cylinder is mounted on the first slide rail and driven to slide by the first-stage propulsion cylinder. A guide rail fixing plate and a second slide rail are sequentially arranged on the top of the second-stage propulsion cylinder. A slider connecting to the positioning cylinder mounting plate is installed on the second slide rail. The positioning cylinder mounting plate is fixedly connected to the positioning cylinder. Both the positioning cylinder mounting plate and the guide rail fixing plate are provided with opening and closing holes that match the opening and closing clips of the positioning cylinder. The positioning cylinder drives the opening and closing clips to insert and connect or separate the positioning cylinder mounting plate and the guide rail fixing plate. One side of the positioning cylinder mounting plate is connected to the fixed frame plate for mounting the heating device. The workbench propulsion cylinder is located at the bottom of the surface-mounted workbench and is fixedly connected to the surface positioning heating mechanism.

[0007] Furthermore, the first-stage propulsion cylinder drives the second-stage propulsion cylinder, which in turn drives the fixed frame plate of the heating device. The positioning cylinder drives the locking and unlocking of the second-stage propulsion cylinder and the fixed frame plate. The combined drive of the first-stage propulsion cylinder and the second-stage propulsion cylinder realizes the two-stage movement of the heating device and the frame flipping mechanism.

[0008] Furthermore, the lifting and balancing gear plate is vertically fixedly connected to both ends of the press frame. The lifting and balancing gear plate is also provided with a gear set that meshes with the synchronous gears at both ends of the fixed plate connecting shaft. The upper mold fixing plate is driven by the servo motor drive motor transmission shaft to drive the gear column, and then the gear column pulls and drives the upper mold fixing plate to move up and down in the vertical direction of the lifting and balancing gear plate. The fixed plate connecting shaft meshes with the lifting and balancing gear plate to balance the upper mold fixing plate. The second skin suction mechanism is located at the bottom of the upper mold of the press frame.

[0009] Furthermore, the lifting balance gear plate is equipped with a lifting sensor that senses the lifting height of the central moving platform. The lifting sensor is connected to a protective support rod parallel to the lifting balance gear plate. The second skin suction mechanism is powered by an upper tire membrane adsorption cylinder located on one side of the gear column.

[0010] Furthermore, the lower end of the flipping cylinder is fixedly connected to the fixed frame plate of the heating device, the air rod of the flipping cylinder is connected to both sides of the frame flipping mechanism, the lower side of the frame flipping mechanism is movably connected to the fixed frame plate through the flipping shaft, the flipping cylinder drives the frame flipping mechanism to perform a unilateral flipping action, and the frame flipping mechanism is provided with a product frame positioning component for clamping the product frame a.

[0011] Furthermore, the skin placement workbench is driven to move horizontally by a workbench push cylinder. The bottom of the skin placement workbench is provided with workbench slide rails that match the guide rail grooves at its bottom. Its surface is also provided with a skin flattening device for pressing the product skin b.

[0012] Furthermore, the gantry robot is equipped with a gripping device on its retrieval fixture that clamps the composite skeleton c, and the turntable head connected to the retrieval fixture can rotate 360°.

[0013] Furthermore, the propulsion cylinder, the tilting cylinder, and the upper mold adsorption cylinder are all supplied with air by an air storage tank installed on the base frame of the skin positioning and heating mechanism.

[0014] The technical advantages of this disclosure are as follows: After the product is manually placed onto the skeleton flipping mechanism and the skin placement worktable, the skin positioning and heating mechanism, the press frame, and the gantry robot automatically complete the pressure bonding process of the product. In the adhesive application and skin positioning heating mechanism section, the adhesive heating activation of the product skeleton a, the suction of the product skin b, and the two-stage propulsion movement of product skeleton a and product skin b via a propulsion cylinder are all completed. The skin positioning and heating mechanism can process four products at once, improving processing efficiency. The press frame section performs pressure bonding processing on the product using a membrane, which is divided into upper and lower membranes for placing the product skeleton a and product skin b respectively. The membrane is fixed by a membrane fixing plate and driven by a servo press. After the press frame completes the pressure bonding, the gantry robot picks up the product. The gantry robot is equipped with a picking fixture that can pick up the product in one go and place it onto the conveyor belt.

[0015] Various embodiments of this disclosure may include one or more of the features described herein and others. The nature and advantages of this disclosure can be better understood by referring to the following detailed description and accompanying drawings. Attached Figure Description

[0016] Figure 1 A three-dimensional structural view of two servo presses arranged side by side is shown;

[0017] Figure 2 A three-dimensional structural view showing the interaction between the skin positioning heating mechanism for removing the panel, the press frame, and the gantry robot;

[0018] Figure 3 A three-dimensional structural view of the skin positioning heating mechanism is shown in the direction of the material feeding side of the panel removal panel.

[0019] Figure 4 This shows a three-dimensional structural view of the epidermal positioning heating mechanism after the other half has been removed;

[0020] Figure 5 An installation structure view of the first epidermal absorption mechanism is shown;

[0021] Figure 6 A structural view showing the connection relationship between the first-stage propulsion cylinder and the second-stage propulsion cylinder is shown.

[0022] Figure 7A structural view showing the connection relationship between the two-stage propulsion cylinder, the positioning cylinder, and the fixed frame plate is provided.

[0023] Figure 8 A three-dimensional structural view of the press frame with the side panels removed is shown;

[0024] Figure 9 This shows a three-dimensional structural view of the press frame after the outer frame has been removed;

[0025] Figure 10 This shows a three-dimensional structural view of the press frame after the top servo press and surrounding components have been removed;

[0026] Figure 11 The diagram shows the structural view after the outer frame has been removed, showing the interaction direction between the skin positioning heating mechanism and the press frame;

[0027] Figure 12 A structural view showing the interaction direction between the press frame and the gantry robot is shown;

[0028] Figure 13 A view showing the connection structure between the gantry robot, the slide rail, and the part-picking fixture is provided.

[0029] In the diagram: 1. Skin positioning heating mechanism; 101. Heating device; 102. Fixed frame plate; 103. Infrared heating lamp; 104. Tilting cylinder; 105. Skeleton tilting mechanism; 106. Skin placement workbench; 107. First-stage propulsion cylinder; 108. Second-stage propulsion cylinder; 109. Workbench propulsion cylinder; 110. First skin suction mechanism; 111. Second skin suction mechanism; 112. Skin suction head; 113. First slide rail; 114. Second slide rail; 115. Workbench slide rail; 116. Positioning cylinder mounting plate; 117. Positioning cylinder; 118. Splitting and closing hole; 119. Skin flattening device; 120. Product skeleton positioning component; 121. Tilting shaft. 122 Slider, 123 Splitting and Joining Card Head, 124 Guide Rail Fixing Plate, 2 Press Frame, 201 Upper Mold, 202 Lower Mold, 203 Upper Mold Fixing Plate, 204 Lower Mold Fixing Plate, 205 Gear Column, 206 Fixing Plate Connecting Shaft, 207 Synchronous Gear, 208 Lifting Balance Gear Plate, 209 Lifting Balance Slide Rod, 210 Lifting Sensor, 211 Protective Support Rod, 212 Servo Motor, 213 Motor Drive Shaft, 214 Upper Mold Adsorption Cylinder, 215 Drive Shaft Gear, 3 Truss Robot, 301 Truss Robot Sliding Motor, 302 Turntable Head, 303 Picking Fixture, 304 Clamping Device, 305 Slide Rail, 306 Conveyor Belt. Detailed Implementation

[0030] In the following description of the embodiments, reference will be made to the accompanying drawings, which form a part of the following description, and specific embodiments that may be implemented are shown by way of example in the drawings. It should be understood that other embodiments may be used and structural changes may be made without departing from the scope of the various embodiments.

[0031] Now refer specifically to the representative implementation scheme illustrated in the accompanying drawings.

[0032] Example 1, see appendix Figures 1-13As shown, this technical solution involves at least two servo presses arranged in parallel, performing processing operations simultaneously. On the feeding side of the skin positioning heating mechanism 1, the glue-coated product skeleton a is manually placed onto the skeleton flipping mechanism 105. The skeleton flipping mechanism 105 is equipped with a product skeleton positioning component 120 for clamping the product skeleton a. Then, the operator places the product skin b onto the skin placement worktable 106. The skin placement worktable 106 is equipped with a skin flattening device 119 to prevent the product skin b from lifting and hindering suction cup pickup. The operator then moves to another servo press and repeats the above placement operation, thus creating a cycle. At this time, the two servo presses are in automatic operation. After the product skin b is placed, the skin placement worktable 106 is driven by the worktable push cylinder 109 to move to the designated position. The bottom of the fixed frame plate 102 is provided with a first skin suction mechanism 110 to suck up the product skin b. After the product skin b is sucked up, the heating device 101 and the skeleton flipping mechanism 105 move to the designated position under the action of the first-stage push cylinder 107. Since the positioning cylinder 117 drives the splitting and engaging clamping head 123 to lock the second-stage push cylinder 108 and the fixed frame plate 102, the first-stage push cylinder 107 drives the second-stage push cylinder 108 to slide along the first slide rail 113 and simultaneously drive the fixed frame plate 102 to move. The heating device 101 and the skeleton flipping mechanism 105 make their first movement. The infrared heating lamp tube 103 of the heating device 101 heats and activates the product skeleton a with glue for several seconds. Then, the heating device 101 enters the press frame 2 under the action of the second-stage propulsion cylinder 108. The upper mold fixing plate 203 of the press frame 2 moves downward under the action of the servo motor 212 and the heated product skeleton a is picked up by the second skin suction mechanism 111 and placed on the upper mold 201. The product skin b is placed on the lower mold 202. The heating device 101 and the skeleton flipping mechanism 105 return to their original positions. The middle moving platform 203 descends to close the upper mold 201 and the lower mold 202 for plug-in composite and pressure holding for several seconds to obtain the composite skeleton c. At the same time, a protective support rod 211 is set to prevent the middle moving platform 203 from suddenly descending and causing personal safety hazards to the operators. The servo press opens the mold. The gantry robot 3 is equipped with a part-picking fixture 303 for placing the composite skeleton c. The part-picking fixture 303 is equipped with a clamping device 304 for clamping and fixing the composite skeleton c. The gantry robot 3 can rotate 360° to adjust its direction by connecting the part-picking fixture 303 through the turntable head 302. The gantry robot 3 is set on the slide rail 305 and is driven by the gantry robot sliding motor 301 to move left and right. After moving for a few seconds, the gantry robot 3 reaches the side of the conveyor belt 306, takes the composite skeleton c out of the press frame 2 and puts it on the conveyor belt 306. The specific operation time of each of the above steps can be customized by internal personnel according to work requirements.

[0033] The principle of the embodiment is as follows, see appendix. Figures 1-7 As shown, the multi-process synchronous automatic production servo press for automatically installing the skin and skeleton includes a skin positioning and heating mechanism 1, a press frame 2, and a gantry robot 3. The skin positioning and heating mechanism 1 includes a heating device 101, a skeleton flipping mechanism 105 located above the heating device 101 and driven by a flipping cylinder 104, and a skin placement worktable 106 located below the heating device 101 and driven by a propulsion cylinder. The bottom of the skin placement worktable 106 is provided with worktable slide rails 115 that match the guide rail grooves at its bottom near both sides. Its surface is also provided with a skin flattening device 119 for pressing the product skin b. The heating device 101 mainly includes a fixed frame plate 102 and an infrared heating lamp tube 103. The propulsion cylinder includes a first-stage propulsion cylinder 107 and a second-stage propulsion cylinder 108. 08 and the workbench propulsion cylinder 109, the propulsion cylinder, the tilting cylinder 104 and the upper mold adsorption cylinder 214 are all supplied with air by the air storage tank installed on the base frame of the skin positioning heating mechanism 1, the first stage propulsion cylinder 107 and the second stage propulsion cylinder 108 are arranged in parallel; wherein, the second stage propulsion cylinder 108 is installed on the first slide rail 113 and is driven to slide by the first stage propulsion cylinder 107, the top of the second stage propulsion cylinder 108 is provided with a guide rail fixing plate 124 and the second slide rail 114 in sequence, the second slide rail 114 is installed with a slider 122 connected to the positioning cylinder mounting plate 116, the first stage propulsion cylinder 107 drives the second stage propulsion cylinder 108, and the second stage propulsion cylinder 108 drives the fixed frame plate 102 of the heating device 101. The positioning cylinder mounting plate 116 is fixedly connected to the positioning cylinder 117. Both the positioning cylinder mounting plate 116 and the guide rail fixing plate 124 are provided with splitting and engaging locking holes 118 that match the splitting and engaging locking heads 123 of the positioning cylinder 117. The positioning cylinder 117 drives the splitting and engaging locking heads 123 to insert and connect or separate the positioning cylinder mounting plate 116 and the guide rail fixing plate 124. One side of the positioning cylinder mounting plate 116 is connected to the fixed frame plate 102 for mounting the heating device 101. The positioning cylinder 117 drives the second-stage propulsion cylinder 108 to lock and separate from the fixed frame plate 102. The combined drive of the first-stage propulsion cylinder 107 and the second-stage propulsion cylinder 108 realizes the secondary movement of the heating device 101 and the frame flipping mechanism 105. The workbench propulsion cylinder 109 is located at the bottom of the skin placement workbench 106 and is fixedly connected to the skin positioning heating mechanism 1. The bottom of the fixed frame plate 102 is provided with a first skin absorption mechanism 110, which has a skin absorption head 112 for absorbing the skin b of the product. (See attached document) Figures 8-10As shown, the press frame 2 and the skin positioning and heating mechanism 1 are connected in a front-to-back manner. The press frame 2 includes an upper mold 201, a lower mold 202, a central moving platform 203, a lower mold fixing plate 204, a gear column 205, a fixing plate connecting shaft 206, a lifting balance gear plate 208, a lifting balance slide bar 209, and a servo motor 212 that drives the upper mold fixing plate 203 to lift. (See attached diagram) Figures 12-13 As shown, the gantry robot 3 is located on the discharge side of the press frame 2 and is connected to one side of the slide rail 305. It is driven to slide by the gantry robot sliding motor 301. The gantry robot 3 is equipped with a turntable head 302. The turntable head 302 is connected to a pick-up clamp 303 that is used to pick up the composite skeleton C. A conveyor belt 306 for transporting the composite skeleton C is also provided below the slide rail 305. The pick-up clamp 303 of the gantry robot 3 is equipped with a clamping device 304 for clamping the composite skeleton C. The turntable head 302 connected to the pick-up clamp 303 can rotate 360°.

[0034] See appendix Figure 11 As shown, the upper mold 201 and the lower mold 202 are fixedly connected to the middle moving platform 203 and the lower mold fixing plate 204, respectively. There are two toothed columns 205 on the two end surfaces of the upper mold fixing plate 203. The two toothed columns 205 are meshed with a motor drive shaft 213 driven by a servo motor 212. The two ends of the motor drive shaft 213 are provided with drive shaft gears 215. The fixing plate connecting shaft 206 passes through the upper part of the upper mold fixing plate 203. The two ends of the fixing plate connecting shaft 206 pass through the two end surfaces of the upper mold fixing plate 203 and are provided with synchronous gears 207. The synchronous gears 207 are meshed with the lifting balance gear plate 208. Two lifting balance slide rods 209 are respectively provided at both ends of the press frame 2. The lifting balance slide rods 209 also penetrate and connect to both ends of the middle moving platform 203.

[0035] The lifting balance gear plate 208 is vertically fixedly connected to both ends of the press frame 2. The lifting balance gear plate 208 is also provided with a gear set that meshes with the synchronous gears 207 at both ends of the fixed plate connecting shaft 206. The upper mold fixing plate 203 is driven by the servo motor 212, which drives the gear column 205 through the motor transmission shaft 213. In turn, the gear column 205 pulls the upper mold fixing plate 203 to move up and down along the vertical direction of the lifting balance gear plate 208. The fixed plate connecting shaft 206 meshes with the lifting balance gear plate 208 to balance the upper mold fixing plate 203. The second skin suction mechanism 111 is located at the bottom of the upper mold 201 of the press frame 2. The lifting balance gear plate 208 is provided with a lifting sensor 210 that senses the lifting height of the central moving platform 2013. The lifting sensor 210 is connected to a protective support rod 211 parallel to the lifting balance gear plate 208. The second skin suction mechanism 111 is powered by an upper mold adsorption cylinder 214 located on one side of the gear column 205. The lower end of the flipping cylinder 104 is fixedly connected to the fixed frame plate 102 of the heating device 101. The air rod of the flipping cylinder 104 is connected to both sides of the frame flipping mechanism 105. The lower side of the frame flipping mechanism 105 is movably connected to the fixed frame plate 102 through the flipping shaft 121. The flipping cylinder 104 drives the frame flipping mechanism 105 to perform a unilateral flipping action. The frame flipping mechanism 105 is provided with a product frame positioning component 120 for clamping the product frame a.

[0036] While examples of this disclosure have been fully described with reference to the accompanying drawings, it should be noted that various changes and modifications will become apparent to those skilled in the art. It should be understood that such changes and modifications are considered to be included within the scope of the examples of this disclosure as defined by the appended claims.

Claims

1. A multi-station simultaneous automatic production servo press for automatically installing a skin and a frame, characterized by, include: The skin positioning and heating mechanism includes a heating device, a frame flipping mechanism located above the heating device and driven by a flipping cylinder, and a skin placement worktable located below the heating device and driven by a propulsion cylinder. The heating device mainly includes a fixed frame plate and an infrared heating lamp. The propulsion cylinder includes a first-stage propulsion cylinder, a second-stage propulsion cylinder, and a worktable propulsion cylinder. A first skin suction mechanism is provided at the bottom of the fixed frame plate. The first skin suction mechanism is provided with a skin suction head for adsorbing the skin b of the product. The press frame is connected to the skin positioning and heating mechanism in a front-to-back splicing relationship. The press frame includes an upper mold, a lower membrane, a middle moving platform, a lower membrane fixing plate, a gear column, a fixing plate connecting shaft, a lifting balance gear plate, a lifting balance slide bar, and a servo motor that drives the upper mold fixing plate to lift. A gantry robot is located on the discharge side of the press frame and connected to one side of the slide rail. It is driven to slide by a gantry robot sliding motor. The gantry robot is equipped with a turntable head, which is connected to a pick-up clamp that is used to place the composite skeleton c. A conveyor belt for transporting the composite skeleton c is also provided below the slide rail. The upper mold and lower membrane are fixedly connected to the central moving platform and the lower membrane fixing plate, respectively. There are two toothed columns on the two end surfaces of the upper mold fixing plate. The two toothed columns are meshed with a motor drive shaft driven by a servo motor. The two ends of the motor drive shaft are provided with drive shaft gears. The fixing plate connecting shaft passes through the upper part of the upper mold fixing plate. The two ends of the fixing plate connecting shaft pass through the two end faces of the upper mold fixing plate and are provided with synchronous gears. The synchronous gears are meshed with the lifting balance gear plate. Two lifting balance slide rods are respectively provided at both ends of the press frame. The lifting balance slide rods also penetrate and connect to both ends of the central moving platform. The product skeleton a is mounted on the skeleton flipping mechanism of the skin positioning heating mechanism, and the product skin b is mounted on the skin placement worktable. The skin placement worktable is driven to a designated position by the worktable push cylinder, and then the product skin b is picked up by the first skin suction mechanism. The heating device and the skeleton flipping mechanism enter the press frame under the action of the first-stage push cylinder and the second-stage push cylinder. The upper mold fixing plate moves downward under the action of the servo motor and the product skeleton a is picked up by the second skin suction mechanism. The second skin suction mechanism places the product skin b on the lower mold. The heating device and the skeleton flipping mechanism return to their original positions. The middle moving platform descends to close the upper mold and the lower mold, perform plug-in composite and pressure holding to obtain the composite skeleton c. The gantry robot takes the composite skeleton c out of the press frame, slides it, and places it on the conveyor belt. The lower end of the flipping cylinder is fixedly connected to the fixed frame plate of the heating device. The air rod of the flipping cylinder is connected to both sides of the frame flipping mechanism. The lower side of the frame flipping mechanism is movably connected to the fixed frame plate through the flipping shaft. The flipping cylinder drives the frame flipping mechanism to perform a unilateral flipping action. The frame flipping mechanism is equipped with a product frame positioning component that clamps the product frame a.

2. The multi-process simultaneous automatic production servo press for automatically mounting a skin and a frame according to claim 1, characterized in that, The first-stage propulsion cylinder and the second-stage propulsion cylinder are arranged in parallel. The second-stage propulsion cylinder is mounted on the first slide rail and is driven to slide by the first-stage propulsion cylinder. The top of the second-stage propulsion cylinder is provided with a guide rail fixing plate and a second slide rail in sequence. The second slide rail is equipped with a slider that connects to the positioning cylinder mounting plate. The positioning cylinder mounting plate is fixedly connected to the positioning cylinder. Both the positioning cylinder mounting plate and the guide rail fixing plate are provided with opening and closing holes that match the opening and closing head of the positioning cylinder. The positioning cylinder drives the opening and closing head to insert and connect or separate the positioning cylinder mounting plate and the guide rail fixing plate. One side of the positioning cylinder mounting plate is connected to the fixed frame plate for installing the heating device. The workbench propulsion cylinder is located at the bottom of the workbench and is fixedly connected to the workbench positioning and heating mechanism.

3. The multi-station simultaneous automatic production servo press for automatically mounting a skin and a frame according to claim 2, wherein The first-stage propulsion cylinder drives the second-stage propulsion cylinder, which in turn drives the fixed frame plate of the heating device. The positioning cylinder drives the second-stage propulsion cylinder to lock and separate from the fixed frame plate. The combined drive of the first-stage and second-stage propulsion cylinders enables the two-stage movement of the heating device and the frame flipping mechanism.

4. The multi-process synchronous automatic production servo press for automatically installing the skin and skeleton according to claim 1, its features are as follows: The feature is that the lifting and balancing gear plate is vertically fixedly connected to both ends of the press frame. The lifting and balancing gear plate is also provided with a gear row that meshes with the synchronous gears at both ends of the connecting shaft of the fixed plate. The upper mold fixing plate is driven by the transmission shaft of the servo motor to drive the gear column, and then the gear column pulls and drives the upper mold fixing plate to move up and down in the vertical direction of the lifting and balancing gear plate. The fixing plate is connected to the lifting and balancing gear plate to balance the upper mold fixing plate. The second skin suction mechanism is located at the bottom of the upper mold of the press frame.

5. The multi-station simultaneous automatic production servo press for automatic installation of skin and frame according to claim 4, characterized in that, The lifting balance gear plate is equipped with a lifting sensor that senses the lifting height of the central moving platform. The lifting sensor is connected to a protective support rod parallel to the lifting balance gear plate. The second skin suction mechanism is powered by an upper tire membrane adsorption cylinder located on one side of the gear column.

6. The multi-process simultaneous automatic production servo-press for automatically mounting a skin and a frame according to claim 1, characterized in that, The skin placement workbench is driven to move horizontally by a workbench push cylinder. The bottom of the skin placement workbench is provided with workbench slide rails that match the guide rail grooves at its bottom. Its surface is also provided with a skin flattening device to press the product skin b.

7. The multi-station simultaneous automatic production servo-press for automatically mounting a skin and a frame according to claim 1, characterized in that, The gantry robot is equipped with a gripping device on its retrieval fixture that clamps the composite skeleton c. The turntable head connected to the retrieval fixture can rotate 360°.

8. The multi-station simultaneous automatic production servo press for automatic installation of skin and frame according to claim 1, characterized in that, The propulsion cylinder, the tilting cylinder, and the upper mold adsorption cylinder are all supplied with air by an air storage tank installed on the base frame of the skin positioning and heating mechanism.

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