Door panel placement device

Abstract

The application provides a door panel placing device, which is arranged in a door panel assembly line as a first station and used for receiving a door panel workpiece to be assembled. The door panel placing device comprises a jacking positioning assembly and a jacking positioning driving part, so that the mold device placed in the current station can be jacked and positioned. The door panel placing device further comprises a rotating driving assembly and a mold opening and closing control part, so that the cover of the mold device can be opened or closed after the mold device is positioned, which is convenient for placing the door panel workpiece. The door panel placing device further comprises a mold pushing assembly and a conveying driving part, so that the mold device can be conveyed to the next station after the mold device is closed and placed on the mold pushing assembly. The door panel placing device can receive the door panel workpiece and position the door panel workpiece at a predetermined position in the station, and then open the mold device. After the inspection of the current station is completed, the mold device is closed and conveyed to the next station. The door panel placing device has high automation degree, can improve production efficiency and reduce the labor burden of the operator.

Description

Technical Field

[0001] This invention belongs to the field of automotive interior parts manufacturing technology, specifically relating to a door panel placement device. Background Technology

[0002] Automotive interior parts are products used inside automobiles, including center consoles, door panels, seat cushions, and many other products. Door panel assembly involves multiple processes such as screwing, welding, installing clips, and quality inspection. Currently, the assembly of automotive door panels is mostly done manually, involving moving the parts to be assembled onto a workbench, securing them, and then using different tools to perform each process. This creates several problems: First, the large size and weight of automotive door panels result in high labor intensity and low production efficiency for operators; second, door panels are prone to bumps and knocks during handling, affecting product quality; third, operators need to switch between multiple processing tools, resulting in significant time spent switching, impacting production efficiency, and the varying skill levels of different operators also affect the consistency of the final product.

[0003] Therefore, in order to improve the production efficiency of automotive door panel assembly, reduce the labor burden of workers, and improve the quality and consistency of the final product, a door panel assembly line is needed that can automatically or semi-automatically assemble automotive door panels at different workstations. Accordingly, a door panel placement device is needed that facilitates the placement of automotive door panel workpieces to be processed, automatically inspects the workpieces, and transports them to subsequent assembly workstations after confirming that there are no quality problems. Summary of the Invention

[0004] This invention addresses the aforementioned problems and aims to provide a door panel placement device that facilitates worker placement of automotive door panel workpieces, automatically performs quality inspection on the workpieces, and transports them to subsequent assembly stations when no quality issues are found. The invention employs the following technical solution:

[0005] This invention provides a door panel placement device, which is set as a first station in a door panel assembly line for receiving a mold device holding an automotive door panel workpiece to be assembled. The mold device has a support unit for supporting the automotive door panel workpiece and a cover plate rotatably connected to the support unit. The device is characterized by comprising: a door panel placement mechanism for placing the automotive door panel workpiece; and a door panel placement control mechanism for controlling the operation of the door panel placement mechanism. The door panel placement mechanism includes: a lifting and positioning assembly for lifting and positioning the mold device, positioning the mold device at a predetermined assembly position; and a rotation drive assembly for driving the mold device. The cover plate rotates to open or close the mold device; and a mold pushing assembly is used to transport the mold device. The door panel placement control mechanism includes: a lifting and positioning control unit for controlling the lifting and positioning assembly to lift and position the mold device or to lower it onto the mold pushing assembly; a mold opening and closing control unit for controlling the rotation drive assembly to rotate the cover plate after the mold device is lifted and positioned, thereby opening or closing the mold device; and a conveying control unit for controlling the mold pushing assembly to convey the mold device to the next workstation after the mold device is closed and lowered onto the mold pushing assembly.

[0006] The door panel placement device provided by the present invention may also have the following technical features: a plurality of positioning blocks are provided below the support unit, each positioning block having a downward-facing positioning groove; the lifting positioning assembly includes a plurality of lifting cylinders, the arrangement of which corresponds to the plurality of positioning blocks; the output end of each lifting cylinder matches the positioning groove; and the lifting positioning control unit simultaneously drives the output ends of the plurality of lifting cylinders to extend or retract, thereby smoothly lifting or lowering the mold device; when the mold device is lifted, the output ends of the plurality of lifting cylinders are respectively embedded in the plurality of positioning grooves, thereby fixing the mold device.

[0007] The door panel placement device provided by the present invention may also have the following technical features, wherein the rotary drive assembly includes: a rotary drive motor for driving the cover plate to rotate; and a rotary transmission assembly for connecting the output end of the rotary drive motor and the cover plate. When the lifting and positioning part lifts the support unit, the cover plate is inserted into the transmission assembly. The mold opening and closing control part is used to drive the output end of the rotary drive motor to rotate along a first direction or a second direction, thereby causing the cover plate to rotate toward or away from the support unit, thus opening and closing the mold device.

[0008] The door panel placement device provided by the present invention may also have the following technical features: a plug-in component is provided on the side of the cover plate connected to the support unit, the plug-in component having a U-shaped opening; the rotation transmission assembly includes: a bearing; an opening and closing rod having a mounting hole at one end, which is installed at the output end of the rotation drive motor through the mounting hole and the bearing; and a circular pusher component, rotatably installed at the other end of the opening and closing rod, wherein when the lifting positioning part lifts the support unit, the circular pusher component is embedded in the U-shaped opening.

[0009] The door panel placement device provided by the present invention may also have the following technical features, wherein the rotary drive assembly further includes a plurality of proximity sensors, which are respectively disposed above and below the output end of the rotary drive motor, respectively corresponding to the maximum predetermined stroke of the opening and closing rod. Once the opening and closing rod reaches the position of the proximity sensor, the corresponding proximity sensor generates a corresponding signal, and the mold opening and closing control unit controls the rotary drive motor to stop working when it receives the signal.

[0010] The door panel placement device provided by the present invention may also have the following technical features, wherein the mold pushing part includes: two chain conveying tracks arranged parallel to each other, the spacing of which corresponds to the overall width of the door panel assembly mold device, having a drive gear and a chain mounted on the drive gear; a transmission rod, with its two ends respectively connected to the drive gears of the two chain conveying tracks, for making the conveying speed of the two chain conveying tracks consistent; and a push drive motor for driving the chain to rotate, and the conveying control part for controlling the push drive motor, thereby driving the chain conveying tracks to convey the mold device.

[0011] The door panel placement device provided by the present invention may also have the following technical features: a door panel placement blocking mechanism disposed on the side of the chain conveyor track near the next station, for blocking or releasing the mold device placed on the chain conveyor track; and a blocking control unit for controlling the door panel placement blocking mechanism to block or release the mold device.

[0012] The door panel placement device provided by the present invention may also have the following technical features, wherein the door panel placement blocking mechanism includes: a blocking support; a connecting rod, one end of which is rotatably mounted on the blocking support; a blocking member, rotatably mounted on the other end of the connecting rod, for abutting against the mold device to block; and a blocking drive cylinder for driving the connecting rod and the blocking member to rotate, thereby blocking or releasing the mold device, wherein the blocking control unit is used to control the output end of the blocking drive cylinder to extend or retract, driving the connecting rod and the blocking member to rotate, thereby blocking or releasing the mold device.

[0013] The door panel placement device provided by the present invention may also include the following technical features: a shooting mechanism disposed above the door panel placement device, used to take a picture of the automobile door panel workpiece when the mold device is opened to obtain its surface image; and a workpiece surface quality detection unit used to perform image recognition on the surface image, identify multiple workpiece parts therein, and compare each workpiece part with a pre-stored reference image. When the difference between the workpiece part and the corresponding reference image is greater than a predetermined threshold, it is determined that the workpiece part has a defect, and then the image of the workpiece part and the corresponding alarm prompt information are output.

[0014] The door panel placement device provided by the present invention may also include the following technical features: a door panel placement lifting mechanism for driving the mold device to move up and down; and a lifting control unit for controlling the operation of the door panel placement lifting mechanism, wherein the door panel placement lifting mechanism includes: a bracket; multiple vertical guide rails disposed on the bracket; a bracket for supporting the mold device, provided with multiple sliders, the multiple sliders being slidably engaged with the multiple vertical guide rails respectively; a lifting drive motor connected to the bracket through a lifting transmission assembly for driving the bracket to move up and down; and a counterweight cylinder disposed above the lifting drive motor for reducing the weight on one side of the lifting drive motor, and the lifting control unit controlling the lifting drive motor and the counterweight cylinder to work simultaneously, thereby causing the bracket to move up and down, driving the mold device to move up and down.

[0015] Invention Function and Effect

[0016] According to the door panel placement device of the present invention, a first station is provided in a door panel assembly line for receiving automotive door panel workpieces to be assembled. Because it has a lifting and positioning assembly and a lifting and positioning control unit, it can lift and position the mold device placed in the current station, thereby facilitating the inspection operation of the current station. Because it has a rotation drive assembly and a mold opening and closing control unit, the cover plate of the mold device can be rotated open or closed after the mold device is lifted and positioned, thereby facilitating the placement of the automotive door panel workpiece. Because it has a mold pushing assembly and a conveying control unit, the mold device can be closed and lowered onto the mold pushing assembly, and then conveyed to the next station. As described above, the door panel placement device of this embodiment can receive automotive door panel workpieces to be assembled, position them in a predetermined position in the station, open the mold device, and then close and convey the mold device to the next station after the inspection at the current station is completed. It has a high degree of automation, improves production efficiency, and reduces the workload of operators. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the door panel placement device in this embodiment;

[0018] Figure 2 This is a partial structural diagram of the door panel placement device in this embodiment;

[0019] Figure 3 This is a structural diagram of the mold device in this embodiment;

[0020] Figure 4 These are structural diagrams of the mold device at different angles in this embodiment;

[0021] Figure 5 This is a schematic diagram of the positioning block and the lifting positioning component in this embodiment;

[0022] Figure 6 This is a schematic diagram of the connector and the rotary drive assembly in this embodiment;

[0023] Figure 7 This is a structural diagram of the mold device in the open state in this embodiment;

[0024] Figure 8 This is a structural diagram of the mold pushing component in this embodiment;

[0025] Figure 9 yes Figure 3 Enlarged view of the inner part of frame A;

[0026] Figure 10 This is a partial structural diagram of the lifting mechanism for placing the door panel in this embodiment;

[0027] Figure 11This is a structural diagram of the mold device and the door panel assembly blocking mechanism in this embodiment;

[0028] Figure 12 yes Figure 11 Enlarged view of the inner part of the middle frame B;

[0029] Figure 13 This is a schematic diagram of the door panel placement blocking mechanism in this embodiment when it is released in the forward direction;

[0030] Figure 14 This is a schematic diagram of the structure of the door panel placement blocking mechanism in this embodiment when it is released in the reverse direction;

[0031] Figure 15 This is a structural block diagram of the door panel placement device in this embodiment;

[0032] Figure 16 This is a flowchart illustrating the process of placing the automotive door panel workpiece in this embodiment.

[0033] Figure label:

[0034] Door panel placement device 10; Door panel placement mechanism 11; Mold pushing assembly 12; Chain conveyor track 121; Drive shaft 122; Chain track drive motor 123; Outer baffle 124; Lifting and positioning assembly 13; Lifting cylinder 131; Lifting limit component 132; Vertical section 1321; Second pin hole 1321a; Extension section 1322; Buffer pad 1323; Rotary drive assembly 14; Rotary drive motor 141; Rotary transmission assembly 142; Bearing 1421; Opening and closing rod 1422; Circular pusher 142 3; Rotation limit assembly 143; Door panel placement lifting mechanism 15; Bracket 151; Front support rod 1511; Rear support rod 1512; Vertical guide rail 152; Bracket 153; Slider 1531; Lifting transmission assembly 154; Lead screw 1541; Adapter block 1542; Lifting drive motor 155; Counterweight cylinder 156; Movable pin 157; Pin head 1571; Pin cylinder 1572; Door panel placement blocking mechanism 16; Base 161; Blocking support 162; Sloping side 1621; Square 1622; 163; 164; 1641; 1642; 1643; 1644; 165; 166; 171; 172; 173; 174; 175; 166; 171; 172; 173; 174; 175; 176; 177; 178; 179; 179; 170; 171; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 179; 170; 171; 174; 175; 176; 177; 178 ...5; 176; 177; 178; 179; 171; 174; 175; Part 180; Placement-side communication unit 181; Placement-side control unit 182; Operation terminal 19; Door panel assembly mold device 20; Support unit 21; Support frame 211; Positioning block 2111; Handle 2112; Height limiting block 2113; First pin hole 2113a; Mold fixing component 212; Cover plate 22; Cover plate frame 221; Pressing limiting component 222; Press head 223; Insertion component 224; Connection unit 23; Connection bracket 231; Rotating shaft 232; Bearing assembly 233; Damping assembly 234. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the door panel placement device of the present invention will be specifically described below in conjunction with embodiments and accompanying drawings.

[0036] <Example>

[0037] This embodiment provides a door panel placement device, which is set in the door panel assembly line as the first station to receive automotive door panel workpieces to be assembled. It includes hardware structure and software control. The hardware structure will be described in detail below.

[0038] Figure 1This is a structural diagram of the door panel placement device in this embodiment.

[0039] Figure 2 This is a partial structural diagram of the door panel placement device in this embodiment.

[0040] like Figure 1 and Figure 2 As shown, the door panel placement device 10 in this embodiment is used to place the door panel assembly mold device 20 (hereinafter referred to as mold device 20). The car door panel workpiece is placed in the mold device 20 to facilitate its transfer between various workstations. Therefore, the structure of the mold device 20 will be described below.

[0041] Figure 3 This is a structural diagram of the mold device in this embodiment.

[0042] Figure 4 These are structural diagrams of the mold device at different angles in this embodiment.

[0043] like Figure 3 and Figure 4 As shown, the mold device 20 includes a support unit 21, a cover plate 22, and a connecting unit 23.

[0044] The support unit 21 is used to support the door panel workpiece to be assembled, including a support frame 211, a support mold (not shown in the figure), and multiple mold fixing parts 212.

[0045] The support frame 211 is welded from square steel rods and steel sheets and is used to support the support mold. The support mold is made of a material with relatively low hardness and a certain degree of elasticity, and is used to support and limit the position of the automotive door panel workpiece. Multiple mold fixing parts 212 are respectively installed above the square rods of the support frame 211, and a structure for installing the support mold is formed between several mold fixing parts 212, with the support mold engaging between the several mold fixing parts 212.

[0046] Figure 5 This is a schematic diagram of the positioning block and the lifting positioning component in this embodiment.

[0047] like Figure 5 As shown, four positioning blocks 2111 are provided below the support frame 211. The positioning blocks 2111 have a circular positioning groove with the opening facing downward in the middle, which is used to cooperate with the door panel placement mechanism 11 when it is lifted and positioned. Due to structural obstruction, only part of the positioning blocks 2111 is shown in the figure.

[0048] In addition, such as Figure 3As shown, a pair of height limiting blocks 2113 are provided on both sides of the support frame 211. The height limiting blocks 2113 are metal blocks with three first pin holes 2113a. When the mold device 20 is placed on the workstation, the first pin holes 2113a face the chain conveyor tracks on both sides. Multiple pairs of handles 2112 are also provided on both sides of the support frame 211 along the conveying direction, for operators to place the mold device 20 as a whole into or remove it from the workstation.

[0049] The cover plate 22 is rotatably connected to the support unit 21 and is used to press the door panel workpiece onto the support unit 21, thereby fixing the door panel workpiece. The cover plate 22 includes a cover plate frame 221, a pair of pressing limit members 222, a plurality of pressing heads 223, and a plug-in member 224.

[0050] The cover frame 221 is welded from aluminum profiles. The structure of the cover frame 221 is designed to install multiple pressure heads 223 and to arrange the multiple pressure heads 223 according to a predetermined rule.

[0051] A pair of pressing limiting members 222 are both L-shaped metal parts, which are respectively installed on both sides of the cover plate frame 221. When the cover plate 22 rotates towards the support unit 21, the extended ends of the pressing limiting members 222 abut against the square rods on both sides of the cover plate frame 221, thereby achieving the limiting function and avoiding damage to the automotive door panel workpiece inside.

[0052] The pressure head 223 consists of a metal rod and an elastic element wrapped around the end of the metal rod. The other end of the metal rod is welded to the cover frame 221. The metal rod is perpendicular to the surface direction of the cover frame 221 and extends towards the support unit 21. The arrangement of the multiple pressure heads 223 and the extension length of each pressure head 223 are matched with the upper surface of the automotive door panel workpiece to be pressed. The multiple pressure heads 223 are used to abut against different parts of the upper surface of the automotive door panel workpiece when the cover 22 is rotated and closed, thereby fixing the automotive door panel workpiece and preventing collisions during transportation.

[0053] Figure 6 This is a schematic diagram of the connector and the rotation drive assembly in this embodiment.

[0054] like Figure 6 As shown, the connector 224 is a metal part, which is fixedly installed on the side of the cover frame 221 connected to the support unit 21 by screws and other connectors. It has an outward U-shaped opening, and the connector 224 and the cover frame 221 form an obtuse angle. When the cover 22 is closed, that is, when the surface direction of the cover frame 221 is approximately in line with the horizontal direction, the U-shaped opening of the connector 224 tilts upward.

[0055] like Figure 3 and Figure 5As shown, the connecting unit 23 is used to connect the support unit 21 and the cover plate 22. The connecting unit 23 includes a connecting bracket 231, a rotating shaft 232, multiple pairs of bearing assemblies 233 and a damping assembly 234.

[0056] The connecting bracket 231 is a metal bracket installed on one side of the support frame 211. The rotating shaft 232 is installed on the connecting bracket 231, and the extension direction of the rotating shaft 232 is consistent with the extension direction of the square rod on the side of the support frame 211. The cover frame 221 is installed on the rotating shaft 232 via two pairs of bearing assemblies 233 and can rotate along the rotating shaft 232. The middle part of one side of the cover frame 221 is connected to the connecting bracket 231 via a damping assembly 234. The damping assembly 234 can provide a certain resistance when the cover 22 rotates, thereby limiting its rotation speed and preventing the cover frame 221 from rotating and pressing down too quickly when closed, which could damage the automotive door panel workpiece.

[0057] Figure 7 This is a structural diagram of the mold device in the open state in this embodiment.

[0058] like Figure 3-7 As shown, when the cover plate 22 is flipped and closed toward the support unit 21, the car door panel workpiece is fixed between the two. When the cover plate 22 is flipped open in the opposite direction, the car door panel workpiece can be placed, taken out, replaced, or inspected or assembled.

[0059] In addition, it should be noted that, Figure 1-5 and Figure 6 The diagram shows two different specifications of mold devices 20. Since automotive door panel products come in various specifications (front door panel, rear door panel, door panels for different car models, etc.), and these different specifications differ in size and shape, various mold devices 20 can be set up according to assembly needs. The main differences lie in the structure of the supporting mold, the cover frame 221, and the setting of the pressure head 223. The overall width, positioning block 2111, and connector 224 settings are consistent for different specifications of mold devices 20.

[0060] The structure and function of the door panel placement device 10 will be explained in detail below in conjunction with the relevant structure of the mold device 20.

[0061] like Figure 2 and Figure 3 As shown, the door panel placement device 10 includes a door panel placement mechanism 11, a door panel placement lifting mechanism 15, and a door panel placement blocking mechanism (due to structural obstruction, Figure 2 Figure 3 (Not shown in the image).

[0062] The door panel placement mechanism 11 is used to position, open and close, and push the mold device 20 at the current workstation. The door panel placement mechanism 11 includes a mold pushing component 12, a lifting and positioning component 13, and a rotation drive component 14.

[0063] Figure 8 This is a structural diagram of the mold pushing component in this embodiment.

[0064] like Figure 8 As shown, the mold pushing assembly 12 includes two chain conveyor tracks 121, a drive shaft 122, and a chain track drive motor 123.

[0065] Two parallel chain conveyor tracks 121 are arranged with a spacing matching the width of the mold device 20. When the mold device 20 is placed on the chain conveyor tracks 121, both sides of the mold device 20 are respectively mounted on the two chain conveyor tracks 121 along its width direction, thereby enabling the mold device 20 to move within the current workstation. The chain conveyor tracks include drive gears and annular chains mounted on the drive gears, etc., the specific structure of which is prior art and will not be described in detail.

[0066] In addition, outer baffles 124 are provided on the outer sides of the two chain conveyor tracks 121. The upper edge of the outer baffles 124 is higher than the upper end face of the chain conveyor track 121, thereby forming a clamping structure for the mold device 20 on the chain conveyor track 121 to prevent it from tilting or even falling during the conveying process, and also to protect the chain.

[0067] The two ends of the drive shaft 122 are respectively connected to the two drive gears of the two chain conveyor tracks 311 through bearing assemblies, so as to keep the conveying speed of the two chain conveyor tracks 121 consistent, thereby enabling the mold device 20 to be conveyed smoothly.

[0068] The chain drive motor 123 is used to drive the chain of the chain conveyor track 121 to rotate. Due to the presence of the drive shaft 122, both chain conveyor tracks 121 rotate synchronously in the same direction under the drive of the chain drive motor 123.

[0069] Figure 9 yes Figure 3 Enlarged view of the inner part of frame A.

[0070] like Figure 3 and Figure 9 As shown, the lifting and positioning assembly 13 includes four lifting cylinders 131 and a pair of lifting limit members 132.

[0071] Four lifting cylinders 131 are mounted on a bracket in the door panel placement device 10. The four lifting cylinders 131 are distributed at the four corners of a rectangle and are at a uniform vertical height. The arrangement of the four lifting cylinders 131 corresponds to the arrangement of the four positioning blocks 2111 at the bottom of the mold device 20. The output ends of the lifting cylinders 131 match the circular positioning grooves of the positioning blocks 2111 and can be embedded into the circular positioning grooves. During lifting and positioning, the four lifting cylinders 131 lift simultaneously, their output ends abutting against the bottom surface of the circular positioning grooves, thereby smoothly lifting the mold device 20. Simultaneously, since the output ends of the four lifting cylinders 131 are respectively embedded in the circular positioning grooves of the four positioning blocks 2111, the mold device 20 is fixed horizontally after lifting.

[0072] like Figure 9 As shown, a pair of lifting limit members 132 are respectively disposed on an outer baffle 124 to limit the lifting height of the mold device 20 when lifting the mold device 20. The lifting limit member 132 includes a vertical section 1321, an extension section 1322, and a buffer pad 1323 made of metal. One end of the vertical section 1321 is connected to the bracket in the door panel placement device 10 and extends vertically. The extension section 1322 extends horizontally from the other end of the vertical section 1321 toward the chain conveyor track 121. The buffer pad 1323 is installed on the lower surface of the extension section 1322 and is made of a relatively low-hardness material such as plastic to provide a buffering effect during the limiting. Three second pin holes 1321a are provided on the vertical section 1321, and the arrangement of the three second pin holes 1321a corresponds to the three first pin holes 2113a on the height limiting block 2113.

[0073] When the mold assembly 20 is lifted, the upper surfaces of the pair of height limiting blocks 2113 of the mold assembly 20 abut against the buffer pads 1323 on the lower surfaces of the extensions 1322 of the pair of lifting limiting members 132, thereby blocking the mold assembly 20 at a predetermined lifting height, which is higher than the outer baffle 124, allowing the pin holes to protrude from above the outer baffle 124. When the mold assembly 20 is blocked, the three first pin holes 2113a and the three second pin holes 1321a are aligned to form a through hole. Optionally, the operator can insert a pin into the through hole to fix the mold assembly 20 vertically.

[0074] After the mold device 20 is fixed, the cover plate 22 can be opened to perform inspection or assembly operations on the automotive door panel workpiece at the current workstation.

[0075] like Figure 6As shown, the rotary drive assembly 14 is used to rotate the cover plate 22 of the mold device 20 to open or close. The rotary drive assembly 14 includes a rotary drive motor 141, a rotary transmission assembly 142, and a rotary limit assembly 143.

[0076] The rotary drive motor 141 is used to drive the cover plate 22 to rotate.

[0077] The rotary transmission assembly 142 includes a bearing 1421, an opening / closing rod 1422, and a circular pusher 1423. The opening / closing rod 1422 has two circular ends, one larger than the other, gradually narrowing from the larger end to the smaller end. A circular mounting hole is provided at the larger end, through which the opening / closing rod 1422 is mounted to the output end of the rotary drive motor 141. Driven by the rotary drive motor 141, the opening / closing rod 1422 can swing vertically. The circular pusher 1423 is rotatably mounted on the smaller end of the opening / closing rod 1422 via bolts, nuts, or other connecting parts. The diameter of the circular pusher 1423 matches the opening width of the U-shaped opening of the connector 224 of the mold device 20, allowing it to be inserted into the U-shaped opening and push one side of the U-shaped opening, thereby driving the cover plate 22 to open and close. Specifically, taking the opening of cover 22 as an example, the rotary drive motor 141 drives the opening and closing rod 1422 to swing downward, and the circular pusher 1423 presses against the lower side of the U-shaped opening of the plug 224 and pushes it, thereby causing the cover 22 to rotate upward and open through the lever action.

[0078] Furthermore, the initial position setting of the opening and closing rod 1422 corresponds to the lifting position setting of the lifting and positioning component 32. When the mold device 20 is lifted into place by the lifting and positioning component 32, the circular pusher 1423 of the opening and closing rod 1422 is embedded in the U-shaped opening of the connector 224 of the mold device 20.

[0079] The rotation limiting assembly 143 includes four perforated plates 1431 and four proximity sensors 1432, used to limit the maximum stroke of the opening / closing rod 1422. Two of the perforated plates 1431 are positioned above the output end of the rotary drive motor 141, and the other two are positioned below. Two proximity sensors 1432 are installed in the perforations of the two upper perforated plates 1431 by nuts, and the other two proximity sensors 1432 are installed in the same manner below. Among the two upper proximity sensors 1432, the uppermost proximity sensor 1432 is further away from the output end of the rotary drive motor 141 in the horizontal direction. When the opening / closing rod 1422 swings upward, when the two upper proximity sensors 1432 simultaneously sense the opening / closing rod 1422, it indicates that the opening / closing rod 1422 has swung upward to the predetermined maximum position, that is, the cover plate 22 has closed in place. At this time, the industrial control computer can control the rotary drive motor 141 to stop working in a timely manner based on the signals from the two upper proximity sensors 1432, to prevent the cover plate 22 from pressing down further and damaging the automotive door panel workpiece. The same applies to the two proximity sensors 1432 below, so I won't repeat the explanation.

[0080] Furthermore, as described above, since the overall width, positioning block 2111 and connector 224 of different mold devices 20 are the same, the door panel placement mechanism 11 of this embodiment is universal for different mold devices 20. When replacing the mold device 20, the door panel placement mechanism 11 does not need to be disassembled and adjusted.

[0081] Figure 10 This is a partial structural diagram of the lifting mechanism for placing the door panel in this embodiment.

[0082] like Figure 2 and Figure 10 As shown, the door panel placement lifting mechanism 15 includes a bracket 151, multiple vertical guide rails 152, a support 153, a lifting transmission assembly 154, a lifting drive motor 155, and a counterweight cylinder 156. The door panel placement lifting mechanism 15 is used to lift the chain conveyor track 121 to a height matching that of the adjacent workstation, thereby facilitating the transport of automotive door panel workpieces to the next workstation. In addition, the door panel placement lifting mechanism 15 can also be used to lower the door panel placement mechanism 11 to a position close to the ground, making it easier for operators to place automotive door panel workpieces into the workstation and reducing the workload of the workers.

[0083] The bracket 151 is used to provide support for lifting, and the bracket 151 includes two relatively short front support rods 1511 and two relatively long rear support rods 1512.

[0084] Multiple vertical guide rails 152 are used to provide guidance for lifting. In this embodiment, there are four vertical guide rails 152. Two shorter vertical guide rails 152 are set on two front support rods 1511, and two longer vertical guide rails 152 are set on two rear support rods 1512. All guide rails face inward towards the bracket.

[0085] The bracket 153 is a metal frame used to support the door panel placement mechanism 11 and the mold device 20, and to move them up and down. Viewed from the side, the bracket 153 is L-shaped, with a shorter front end and a longer rear end. Two sliders 1531 are provided on the front end, and four sliders 1531 are provided on the rear end in pairs. The sliders 1531 are slidably engaged with multiple vertical guide rails 152 to form a guiding fit. In addition, the bracket 153 is also equipped with a QR code reader (not shown in the figure) for reading the mold identification code of the mold device 20 placed on the bracket 153. In this embodiment, the mold identification code is a QR code.

[0086] The lifting drive motor 155 drives the bracket 153 to rise and fall through the lifting transmission assembly 154, thereby driving the door panel placement mechanism 11 and the mold device 20 to rise and fall.

[0087] The lifting transmission assembly 154 includes a lead screw 1541 extending vertically between two rear support rods 1512, a lead screw nut (not shown in the figure) mounted on the lead screw 1541, and a transition block 1542 mounted on the lead screw 1541 and held in place by the lead screw nut. The bracket 153 is mounted on the lead screw 1541 via the transition block 1542. Driven by the lifting drive motor 155, the lead screw 1541 drives the bracket 153 to rise and fall. The specific details are existing technology and will not be described in detail.

[0088] A counterweight cylinder 156 is mounted on the lifting drive motor 155 to lift the lifting drive motor 155 upwards, thereby reducing the load on one side of the lifting drive motor 155. Because the lifting drive motor 155 itself is relatively heavy, and it also has structures such as the connecting unit 23 and the long rear end of the bracket 153 on one side, its overall weight is heavier than the other side. Therefore, the unbalanced weight increases the burden on the lifting drive motor 155 and leads to a reduction in the lifespan of transmission structures such as the slider and guide rail. Therefore, the counterweight cylinder 156 effectively alleviates these problems.

[0089] In addition, a pair of movable pins 157 are provided on both sides of the two rear vertical guide rails 152. Each movable pin 157 includes a pin head 1571 that can extend and retract horizontally, and a pin cylinder 1572 for driving the extension and retraction of the pin head 1571. The pair of movable pins 157 are set at a height corresponding to the height of the door panel processing conveyor. When the bracket 153 is raised to the corresponding height, the chain conveyor track 121 on the bracket 153 is approximately at the same height as the track of the door panel processing conveyor, forming a relatively continuous track. At this time, the bracket 153 can be fixed at this height by the pair of movable pins 157.

[0090] Figure 11 This is a structural diagram of the mold device and the door panel assembly blocking mechanism in this embodiment. Figure 12 yes Figure 11 Enlarged view of the inner part of frame B.

[0091] like Figure 11 and Figure 12 As shown, the door panel placement blocking mechanism 16 is used to block or release the mold device 20 at the current station, thereby causing the mold device 20 to remain at the current station or be transported to the next assembly station. The door panel placement blocking mechanism 16 is located on the side of the chain conveyor track 121 near the next station, and includes a base 161, a blocking support 162, a connecting rod 163, a blocking member 164, and a blocking drive cylinder 165.

[0092] The base 161 is mounted on the bracket 153.

[0093] The blocking support 162 is an irregularly shaped metal part, which is mounted on the base 161 by screws or other connecting parts. The blocking support 162 has a beveled edge 1621 on the side near the blocking member 164, and the inclination angle of the beveled edge 1621 corresponds to the setting of the blocking member 164. A square groove 1622 is formed in the upper part of the blocking support 162, and the square groove 1622 runs through the conveying direction.

[0094] Link 163 connects the stop support 162 and the stop member 164. Link 163 is a square metal rod, one end of which is disposed in the square groove 1622 of the stop support 162 and is rotatably connected to the square groove 1622 via a pivot. The other end is used to install the stop member 164. When link 163 rotates to extend horizontally, there is a certain gap between link 163 and the lower edge of square groove 1622. When link 163 abuts against the lower edge of square groove 1622, link 163 extends downward at an angle.

[0095] The blocking member 164 is an irregularly shaped metal part, having a counterweight part 1641 and an abutting blocking part 1642. The counterweight part 1641 is located at the bottom and is used to install counterweights. In this embodiment, two metal counterweight plates 166 are installed on one side of the counterweight part 1641. The abutting blocking part 1642 extends obliquely upward from above the counterweight part 1641, and when viewed from the side, the abutting blocking part 1642 gradually narrows outward from the counterweight part 1641, forming a wedge-shaped end for blocking the mold device 20. A through pivot hole 1643 is provided at the connection between the counterweight part 1641 and the abutting blocking part 1642. The blocking member 164 is rotatably mounted on one end of the connecting rod 163 through the pivot hole 1643 and a corresponding rotating shaft.

[0096] Furthermore, a limiting groove 1644 is provided on one side of the wedge-shaped end of the blocking member 164. The limiting groove 1644 extends from the abutting blocking part 1642 to the counterweight part 1641. The limiting groove 1644 is closed at one end of the abutting blocking part 1642 and extends downward through one end of the counterweight part 1641. The limiting groove 1644 is used to limit the rotation range of the blocking member 164. When the blocking member 164 rotates to its position in the counterclockwise direction, the abutting blocking part 1642 (wedge-shaped end) abuts against the inclined side 1621 of the blocking support member 162, and the upper edge of the limiting groove 1644 abuts against the connecting rod 163, thereby preventing the blocking member 164 from rotating further counterclockwise. When the blocking member 164 rotates to its position in the clockwise direction, the lower edge of the limiting groove 1644 abuts against the output end of the blocking drive cylinder 165, thereby preventing the blocking member 164 from rotating further clockwise.

[0097] The blocking drive cylinder 165 is used to drive the blocking member 164 to block or release the mold device 20. The blocking drive cylinder 165 is embedded in the base 161, and its piston rod 1651 extends upward from the base 161. Figure 3 The diagram shows the structure of the door panel placement blocking mechanism in the blocking state. At this time, the piston rod 1651 of the blocking drive cylinder 165 extends, and the upper end of the piston rod 1651 abuts against the connecting rod 163, keeping the connecting rod 163 in a horizontally extending position. The side of the piston rod 1651 abuts against the limiting groove 1644 of the blocking member 164. At this time, the abutting blocking part 1642 of the blocking member 164 abuts against the side of the mold device 20, and under the action of the piston rod 1651, the blocking member 164 cannot rotate clockwise, thereby blocking the mold device 20 and keeping the mold device 20 at a predetermined position in the work station.

[0098] Figure 13 This is a schematic diagram of the door panel placement blocking mechanism in this embodiment when it is released in the forward direction.

[0099] like Figure 13As shown, since a counterweight 166 is provided on one side of the blocking member 164, its center of gravity is biased to the right side of the figure. Therefore, in the initial state (i.e., when the piston rod 1651 of the blocking drive cylinder 165 retracts), compared with the blocking state, the connecting rod 163 extends slightly downward at an angle, and the blocking member 164 deflects clockwise with its wedge-shaped end facing upward. The uppermost end of the wedge-shaped end is approximately flush with the uppermost end of the blocking support member 162, thereby releasing the mold device 20 along the D1 direction, allowing the mold device 20 to be transported to the next station, or adjusting the position of the mold device 20 when the conveyor is paused, or removing the mold device 20 from the station. Furthermore, Figure 13 The diagram shows the initial state of the door panel placement blocking mechanism, so the mold device 20 can be placed in the workstation at this time.

[0100] Figure 14 This is a schematic diagram of the structure of the door panel placement blocking mechanism in this embodiment when it is released in the reverse direction.

[0101] like Figure 14 As shown, when the piston rod 1651 of the blocking drive cylinder 165 extends, when the mold assembly 20 moves along... Figure 5 When the door panel placement blocking mechanism 16 moves in the direction shown in D2, the mold device 20 presses down the abutting blocking part 1642 of the blocking member 164, and the blocking member 164 rotates counterclockwise to release the door panel placement mechanism 20. Therefore, when the piston rod 1651 of the blocking drive cylinder 165 extends, the door panel placement blocking mechanism 16 of this embodiment can also have a unidirectional release function.

[0102] In addition, such as Figure 1 As shown, the door panel placement device 10 also includes a camera (not shown) mounted on top and an operation terminal 19. In this embodiment, the camera is a camera used to photograph the automotive door panel workpiece in the current workstation for quality inspection; the operation terminal 19 is used by the operator to start and control the corresponding operation process of the current workstation.

[0103] The hardware structure of the door panel placement device 10 has been described in detail above. The software control part of the door panel placement device 10 will be described in detail below in conjunction with its hardware structure.

[0104] Figure 15 This is a structural block diagram of the door panel placement device in this embodiment.

[0105] like Figure 15As shown, the door panel placement device 10 also includes a software control unit, specifically including a workpiece identification code acquisition unit 171, a mold identification code acquisition unit 172, a mold identification detection unit 173, a lifting and positioning control unit 174, a blocking and releasing control unit 175, a mold opening and closing control unit 176, a workpiece surface image acquisition unit 177, a workpiece surface quality detection unit 178, a conveying control unit 179, a lifting control unit 180, a placement side communication unit 181, and a placement side control unit 182 that controls the operation of the above-mentioned units. The lifting and positioning control unit 174, the blocking and releasing control unit 175, and the mold opening and closing control unit 176 are also door panel placement control mechanisms used to control the operation of the door panel placement mechanism 11.

[0106] The workpiece identification code acquisition unit 171 is used to acquire the workpiece identification code of the automobile door panel workpiece to be assembled, which is entered by the operator from the operation terminal 192.

[0107] The mold identification code acquisition unit 172 acquires the mold identification code of the mold device 20 in the current workstation through a QR code reader installed on the bracket 153. When there is a mold device 20 in the current workstation, the mold identification code acquisition unit 172 acquires the corresponding mold identification code; when there is no mold device 20 (empty), it cannot be read.

[0108] The mold identification and detection unit 173 is used to determine whether there is a mold device 20 in the current workstation based on the reading result of the mold identification code acquisition unit 172.

[0109] The lifting and positioning control unit 174 is used to drive the four lifting cylinders 131 to lift simultaneously, thereby lifting and positioning the mold device 20, and to drive the output ends of the four lifting cylinders 131 to retract simultaneously, thereby lowering the mold device 20.

[0110] The blocking control unit 175 is used to drive the output end of the blocking drive cylinder 165 to extend or retract, thereby causing the door panel placement blocking mechanism 16 to block or release the mold device 20 at the current workstation.

[0111] The mold opening and closing control unit 176 controls the opening and closing of the mold device 20, including a mold opening and closing drive unit and a maximum stroke sensing and receiving unit. The mold opening and closing drive unit is used to drive the output end of the rotary drive motor 141 to rotate in a first direction or a second direction, thereby causing the cover plate 22 to rotate upward to open, or to rotate the cover plate 22 toward the support unit 21 to close. The maximum stroke sensing and receiving unit is used to receive the sensing results of the above-mentioned multiple proximity sensors 1432. Once the corresponding proximity sensor 1432 senses the opening and closing rod 1422, it indicates that the opening and closing rod 1422 has reached the maximum stroke, and the mold opening and closing drive unit controls the rotary drive motor 141 to stop working.

[0112] The workpiece surface image acquisition unit 177 is used to control the shooting mechanism 191 set above to take pictures of the automobile door panel workpiece in the current work station, thereby acquiring an image of the back of the automobile door panel workpiece (i.e. the surface of the workpiece facing upward when placed on the support mold).

[0113] The workpiece surface quality inspection unit 178 is used to determine whether the back of the automobile door panel workpiece meets quality requirements and whether there are any defects, based on the image of the back of the automobile door panel workpiece acquired by the workpiece surface image acquisition unit 177. Specifically, the workpiece surface quality inspection unit 178 uses an existing image recognition algorithm to identify multiple workpiece parts in the image, compares each workpiece part with a pre-stored reference image, and determines that the workpiece part has a defect when the difference between the two is greater than a predetermined threshold. The unit then outputs the image of the workpiece part and corresponding alarm information, thereby prompting the operator to inspect, repair, or replace the workpiece.

[0114] The conveying control unit 179 is used to drive the chain track drive motor 123 to work, so that the chain conveying track 121 will transport the mold device 20 placed on the track to the next station.

[0115] The lifting control unit 180 is used to control the operation of the lifting mechanism 15 for placing the door panel. After the operator starts the lifting process through the operating terminal 19, the lifting control unit 180 controls the lifting drive motor 155 and the counterweight cylinder 156 to work simultaneously according to the input of the operating terminal 19, so that the bracket 153 rises to the predetermined maximum height or falls to the predetermined minimum height, thereby driving the mold device 20 on the bracket 153 to lift.

[0116] The placement-side communication unit 181 is used to communicate with other workstations. For example, when it is necessary to transport the mold device 20 of the current workstation to the next workstation, it is necessary to communicate with the next workstation through the placement-side communication unit 180 to notify the next workstation to start its transport track at the same time. The transport tracks of the two adjacent workstations are set at approximately the same height to form a relatively continuous track, and the transport tracks of the two workstations are transported in the same direction, so that the mold device 20 can be transported to the next workstation.

[0117] Figure 16 This is a flowchart illustrating the process of placing the automotive door panel workpiece in this embodiment.

[0118] like Figure 16 As shown, based on the door panel placement device 10 described above, in this embodiment, the workflow of placing the automotive door panel workpiece to be processed into the door panel assembly line specifically includes the following steps:

[0119] Step S1: The operator reads the workpiece identification code of the car door panel workpiece using a handheld scanner, and enters the workpiece identification code into the operation terminal 19, and then proceeds to step S2.

[0120] In step S2, the door panel placement device 10 obtains the mold identification code of the corresponding mold device 20 according to the workpiece identification code, displays the mold identification code through the operation terminal 19, and then proceeds to step S3.

[0121] Step S3: The operator retrieves the corresponding mold device 20 according to the mold identification code and places the mold device 20 into the door panel placement device 10, and then proceeds to step S4.

[0122] Step S4: The operator starts the mold opening process through the operating terminal 19, and then proceeds to step S5.

[0123] Step S5: The door panel placement device 10 attempts to read the mold identification code of the mold device 20 to detect whether the mold device 20 is placed in the workstation, and then proceeds to step S6.

[0124] Step S6: Determine whether there is a mold device 20 in the workstation based on the reading result of step S5. If the determination is yes, proceed to step S7. If the determination is no (i.e. no mold), no action is taken.

[0125] In step S7, the door panel placement device 10 lifts, positions, and blocks the mold device 20 at the current workstation, and then proceeds to step S8.

[0126] In step S8, the mold device 20 has been lifted and blocked, and the door panel placement device 10 drives the cover plate 22 of the mold device 20 to rotate and open, and then proceeds to step S9.

[0127] In step S9, after the mold device 20 is opened to the correct position, the operation terminal 19 displays the corresponding information, prompting the operator to put in the car door panel workpiece to be assembled, and then proceeds to step S10.

[0128] Step S10: The operator places the car door panel workpiece into the mold device 20, and then proceeds to step S11.

[0129] Step S11: The operator starts the workpiece inspection process through the operation terminal 19, and then proceeds to step S12.

[0130] In step S12, the door panel placement device 10 takes a picture of the back of the car door panel workpiece (i.e., the surface of the car door panel workpiece facing upward when placed in the mold device 20) through the camera mechanism to obtain a workpiece surface image, and then proceeds to step S13.

[0131] Step S13: The door panel placement device 10 determines whether the back of the car door panel workpiece meets the quality requirements based on the workpiece surface image. If the determination is yes, proceed to step S14; if the determination is no, proceed to step S13a.

[0132] In step S13a, the operation terminal 19 displays an image of the defective part and issues a corresponding alarm message to prompt the operator to handle it. After the operator handles the defective part, the process returns to step S11.

[0133] In step S14, the door panel placement device 10 drives the cover plate 22 of the mold device 20 to rotate and close, and then proceeds to step S15.

[0134] In step S15, after the cover plate 22 is rotated and closed into place, the door panel placement device 10 releases the mold device 20 and lowers the lifted mold device 20 onto the chain conveyor track 121, and then proceeds to step S16.

[0135] In step S16, the mold device 20 is lowered into place (i.e., it is placed on the chain conveyor track 121), the door panel placement device 10 starts the chain conveyor track 121, and at the same time notifies the second station to start its conveyor track, thereby conveying the mold device 20 carrying the car door panel workpiece to the second station, and then enters the end state.

[0136] Optionally, in step S3 above, the operator can also control the bracket 153 to descend through the operating terminal 19, so that the bracket 153 is lowered to a position close to the ground before placing the mold device 20. After placement, the operator can also control the bracket 153 to rise to the initial height through the operating terminal 19, thereby further reducing the workload of the operator.

[0137] As described above, the door panel placement device 10 of this embodiment can receive automotive door panel workpieces to be assembled, and automatically inspect them before transporting them to the next assembly station.

[0138] Functions and effects of the embodiments

[0139] The door panel placement device provided in this embodiment is set as the first station in the door panel assembly line to receive automotive door panel workpieces to be assembled. Because it has a lifting and positioning assembly and a lifting and positioning control unit, it can lift and position the mold device placed at the current station, facilitating the inspection operation at the current station. Because it has a rotation drive assembly and a mold opening and closing control unit, it can rotate the cover plate of the mold device to open or close after the mold device is lifted and positioned, facilitating the placement of the automotive door panel workpiece. Because it has a mold pushing assembly and a conveying control unit, it can be conveyed to the next station after the mold device is closed and placed onto the mold pushing assembly. As described above, the door panel placement device of this embodiment can receive automotive door panel workpieces to be assembled, position them at a predetermined position in the station, open the mold device, and then close and convey the mold device to the next station after the inspection at the current station is completed. It has a high degree of automation, improves production efficiency, and reduces the workload of operators.

[0140] Specifically, in this embodiment, the lifting and positioning assembly includes four lifting cylinders. Under the control of the lifting and positioning control unit, the four lifting cylinders can simultaneously lift, thereby smoothly lifting the mold device in the current workstation. After lifting, the output ends of the four lifting cylinders are respectively embedded in the positioning grooves of the four positioning blocks at the bottom of the mold device. Therefore, after lifting, the mold device is also fixed at a predetermined position in the workstation. After the mold device is lifted, the rotary drive assembly precisely engages with the connector of the mold device, requiring no manual assembly or adjustment. Under the control of the mold opening and closing control unit, the rotary drive assembly can drive the cover plate to rotate, thereby opening or closing the mold.

[0141] Furthermore, since multiple proximity sensors are installed on the upper and lower sides of the opening and closing rod, once the opening and closing rod reaches the predetermined maximum stroke, the corresponding proximity sensor generates a corresponding signal. Upon receiving the signal, the mold opening and closing control unit controls the rotary drive assembly to stop working in time. Therefore, no manual intervention is required during the mold opening and closing process, resulting in a high degree of automation.

[0142] Furthermore, since the door panel placement device in this embodiment also has a camera head, a workpiece surface image acquisition unit, and a workpiece surface quality inspection unit installed on top, after the mold device is positioned and opened, it can automatically acquire an image of the upper surface of the car door panel workpiece, identify each workpiece part, compare the identified workpiece part with a predetermined reference image, automatically find defective parts, and output corresponding image areas and warning information, further reducing the need for manual intervention and improving production efficiency.

[0143] Furthermore, since the door placement device in this embodiment also includes a door panel placement lifting mechanism and a lifting control unit for controlling its operation, the operator can also lower the bracket to a position close to the ground through the operating terminal to place the mold device, and then raise the bracket and mold device to the predetermined operating height after placement, thereby further reducing the labor burden of the operator and avoiding collisions to the door panel workpiece when handling and lifting large and heavy mold devices and door panel workpieces.

[0144] The above embodiments are only used to illustrate specific implementations of the present invention, and the present invention is not limited to the scope of the description of the above embodiments.

Claims

1. A door panel placement device, configured as a first station in a door panel assembly line, for receiving a mold device holding an automotive door panel workpiece to be assembled, the mold device having a support unit for supporting the automotive door panel workpiece and a cover plate rotatably connected to the support unit, characterized in that... include: A door panel placement mechanism for placing the automobile door panel workpiece; as well as A door panel placement control mechanism is used to control the operation of the door panel placement mechanism. The door panel placement mechanism includes: The lifting and positioning component is used to lift and position the mold device at the current workstation, so that the mold device is positioned at a predetermined assembly position. A rotary drive assembly is used to drive the cover plate to rotate, thereby opening or closing the mold device; A mold pushing assembly for conveying the mold device; and A door panel placement blocking mechanism is used to block or allow the mold device at the current workstation to pass. The door panel placement control mechanism includes: The lifting and positioning control unit is used to control the lifting and positioning component to lift and position the mold device or to lower it onto the mold pushing component. The mold opening and closing control unit is used to control the rotary drive assembly to rotate the cover plate after the mold device is lifted and positioned, thereby opening or closing the mold device; A conveying control unit is configured to control the mold pushing assembly to convey the mold device to the next workstation after the mold device is closed and lowered onto the mold pushing assembly; and The blocking control unit is used to control the blocking mechanism for placing the door panel to block or release the mold device. The rotation drive assembly includes: A rotary drive motor for driving the cover plate to rotate; and A rotary transmission assembly is used to connect the output end of the rotary drive motor and the cover plate. When the lifting and positioning part lifts the support unit, the cover plate is inserted into the transmission assembly. The mold opening and closing control unit is used to drive the output end of the rotary drive motor to rotate in a first direction or a second direction, causing the cover plate to rotate toward or away from the support unit, thereby opening and closing the mold device. A connector with a U-shaped opening is provided on the side of the cover plate that connects to the support unit. The rotational transmission assembly includes: Bearings; The opening / closing rod has two circular ends, one end being larger than the other, gradually narrowing from the larger end to the smaller end. A mounting hole is provided at the larger end, through which it is mounted to the output end of the rotary drive motor via the mounting hole and the bearing, allowing it to swing vertically under the drive of the rotary drive motor; and A circular pusher is rotatably mounted on the other end of the opening / closing rod. When the lifting and positioning part lifts the support unit, the circular pusher is embedded in the U-shaped opening. When the cover needs to be opened, the rotary drive motor drives the opening rod to swing downwards, and the circular pusher presses against the lower side of the U-shaped opening of the connector and pushes it, thereby causing the cover to rotate upwards and open. The mold pushing assembly has two parallel chain conveyor tracks, the spacing of which corresponds to the overall width of the mold device, for conveying the mold device. The door panel placement blocking mechanism is located on the side of the chain conveyor track near the next station, and is used to block or release the mold device placed on the chain conveyor track.

2. The door panel placement device according to claim 1, characterized in that: in, Multiple positioning blocks are provided below the support unit, and each positioning block has a downward-facing positioning groove. The lifting and positioning assembly includes multiple lifting cylinders. The arrangement of the multiple lifting cylinders corresponds to the arrangement of the multiple positioning blocks. The output end of the lifting cylinder matches the positioning groove. The lifting and positioning control unit simultaneously drives the output ends of multiple lifting cylinders to extend or retract, thereby smoothly lifting or lowering the mold device. When the mold device is lifted, the output ends of the multiple lifting cylinders are respectively embedded in the multiple positioning grooves, thereby fixing the mold device.

3. The door panel placement device according to claim 1, characterized in that: in, The rotary drive assembly also includes multiple proximity sensors, respectively positioned above and below the output end of the rotary drive motor, corresponding to the maximum predetermined stroke of the opening / closing rod. Once the opening / closing rod reaches the position of the proximity sensor, the proximity sensor generates a corresponding signal, and the mold opening / closing control unit controls the rotary drive motor to stop working when it receives the signal.

4. The door panel placement device according to claim 1, Its features are: The chain conveyor track includes a drive gear and a chain mounted on the drive gear. The mold pushing component also includes: A transmission rod, with its two ends respectively connected to the drive gears of the two chain conveyor tracks, is used to ensure that the conveying speeds of the two chain conveyor tracks are consistent; and A push drive motor is used to drive the chain to rotate. The conveying control unit is used to control the push drive motor, thereby driving the chain conveyor track to convey the mold device.

5. The door panel placement device according to claim 1, Its features are: The door panel placement blocking mechanism includes: Support components for blocking; The connecting rod is rotatably mounted at one end on the stop support; A blocking member, rotatably mounted on the other end of the connecting rod, is used to abut against the mold device to provide obstruction. It has a counterweight and abutting blocking portion, the abutting blocking portion extending obliquely upward from the counterweight to form a wedge-shaped end. The blocking member also has a limiting groove on one side of the wedge-shaped end. A blocking drive cylinder is used to drive the connecting rod and the blocking component to rotate, thereby blocking or releasing the mold device. The blocking control unit controls the extension or retraction of the output end of the blocking drive cylinder, driving the connecting rod and the blocking component to rotate, thereby blocking or releasing the mold device. When the piston rod of the blocking drive cylinder extends, the upper end of the piston rod abuts against the connecting rod, keeping the connecting rod horizontal. The side of the piston rod abuts against the limiting groove of the blocking member. At this time, the abutting blocking part abuts against the side of the door panel assembly mold device, and under the action of the piston rod, the blocking member cannot rotate clockwise, thereby blocking the door panel assembly mold device. When the piston rod of the blocking drive cylinder retracts, the connecting rod tilts downward, and the uppermost end of the wedge-shaped end of the blocking member is flush with the uppermost end of the blocking support member, thereby releasing the door panel assembly mold device.

6. The door panel placement device according to claim 1, characterized in that, Also includes: The shooting mechanism is located above the door panel placement device and is used to take pictures of the automobile door panel workpiece when the mold device is opened to obtain its surface image; as well as The workpiece surface quality inspection unit is used to perform image recognition on the surface image, identify multiple workpiece parts, and compare each workpiece part with a pre-stored reference image. When the difference between a workpiece part and the corresponding reference image is greater than a predetermined threshold, it is determined that the workpiece part has a defect, and then the image of the workpiece part and the corresponding alarm prompt information are output.

7. The door panel placement device according to claim 1, characterized in that, Also includes: A lifting mechanism for placing the door panel is used to drive the mold device to move up and down; as well as The lifting control unit is used to control the operation of the lifting mechanism for placing the door panel. The lifting mechanism for placing the door panel includes: support; Multiple vertical guide rails are mounted on the bracket; A bracket for supporting the mold device is provided with multiple sliders, each of which is slidably engaged with a plurality of vertical guide rails. A lifting drive motor, connected to the bracket via a lifting transmission assembly, is used to drive the bracket to lift and lower; and A counterweight cylinder, positioned above the lifting drive motor, is used to reduce the weight on one side of the lifting drive motor. The lifting control unit controls the lifting drive motor and the counterweight cylinder to work simultaneously, thereby lifting the bracket and driving the mold device to lift.

Images