Automobile door handle assembly tool based on digital twinning

Abstract

The invention provides an automobile door handle assembly tool based on digital twinning, and belongs to the technical field of automobile door handle production lines. The handle feeding mechanism comprises a first feeding disc and a first manipulator; the handle oiling mechanism comprises a three-axis movement driving assembly and a handle oiling assembly; the shell feeding mechanism comprises a second feeding disc and a second manipulator; the spring pin hitting mechanism comprises a third feeding disc, a third robot arm, a fourth feeding disc, a pin feeding assembly and a pin hitting assembly. The automatic assembling machine has the beneficial effects that the conveying mechanism drives the material base to move to different positions, automatic feeding and installing of handles, automatic oiling of the handles, automatic feeding and installing of shells, automatic feeding and installing of springs and automatic feeding and installing of pin shafts are sequentially completed, automatic assembling is achieved, production is made to be continuous, and the production takt is accelerated.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile door handle production lines and relates to an automobile door handle assembly tool based on digital twins. Background Art

[0002] Cars are important means of transportation and a symbol of the level of scientific and technological development. The automobile industry plays a particularly important role in the progress of the world's manufacturing industry. The use of digital twin technology in the manufacturing of automobile parts can predict the optimal rhythm of manufacturing work and provide a reference for the manufacturing cycle through continuous collection and intelligent analysis of the manufacturing process.

[0003] A car door handle is usually composed of four parts: a shell, a handle, a spring and a pin. When the handle and the spring are opened to the maximum stroke, the door is opened or locked. In the prior art, car door handles need to be moved back and forth between multiple tooling during production and assembly. Due to the lack of continuity between production links, the production rhythm is poor and the degree of automation is low, leaving much room for improvement. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a car door handle assembly tool based on digital twins.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An automobile door handle assembly tool based on digital twin, comprising:

[0007] A conveying mechanism, comprising a first conveying belt and a material holder, wherein the first conveying belt has a first position, a second position, a third position and a fourth position, and the first conveying belt can drive the material holder to move to the first position, the second position, the third position or the fourth position;

[0008] A handle loading mechanism, comprising a first loading tray and a first robot arm, wherein the first robot arm is used to grab the handle of the first loading tray to the material seat when the material seat moves to the first position;

[0009] The handle oiling mechanism comprises a three-axis movable driving assembly and a handle oiling assembly, wherein the handle oiling assembly is connected to the three-axis movable driving assembly, and the three-axis movable driving assembly can drive the handle oiling assembly to move along the XYZ three axes, and when the material holder moves to the second position, the three-axis movable driving assembly drives the handle oiling assembly to oil the handle of the material holder;

[0010] A shell loading mechanism, comprising a second loading tray and a second robot arm, wherein the second robot arm is used to grab the shell of the second loading tray to the material seat when the material seat moves to the third position;

[0011] The spring pin driving mechanism comprises a third loading tray, a third robot arm, a fourth loading tray, an upper pin assembly and a pin driving assembly. When the material seat moves to the fourth position, the third robot arm is used to load the spring of the third loading tray into the material seat, the upper pin assembly is used to take the pin of the fourth loading tray, and the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material seat.

[0012] In the above-mentioned digital twin-based automobile door handle assembly tool, the handle oiling assembly includes a clamping cylinder and an oiling block, the clamping cylinder is connected to the three-axis mobile drive assembly, the three-axis mobile drive assembly can drive the clamping cylinder to move along the XYZ three axes, the number of the oiling blocks is two and the two oiling blocks are connected to the clamping cylinder, and the clamping cylinder can drive the two oiling blocks to move closer to or away from each other.

[0013] In the above-mentioned digital twin-based automobile door handle assembly tool, the upper pin assembly also includes a first base, an offset seat and an offset driving element. The first base includes an upper pin position and a pin driving position. The offset seat is movably connected to the first base, and the offset seat is connected to the offset driving element. The offset driving element can drive the offset seat to move to the upper pin position or the pin driving position. When the offset seat moves to the upper pin position, the fourth loading tray is connected to the offset seat. When the offset seat moves to the pin driving position, the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material seat.

[0014] In the above-mentioned digital twin-based automobile door handle assembly tool, the pinning assembly includes a pinning rod and a pinning driving element, and the pinning rod is connected to the pinning driving element. When the offset seat moves to the pinning position, the pinning driving element can drive the pinning rod to move and pass through the offset seat.

[0015] In the above-mentioned digital twin-based automobile door handle assembly tool, it also includes a laser marking mechanism, the laser marking mechanism includes a laser machine, the first conveyor belt also has a fifth position, the first conveyor belt can drive the material holder to move to the fifth position, and when the material holder moves to the fifth position, the laser machine is aligned with the material holder.

[0016] In the above-mentioned digital twin-based automobile door handle assembly tool, the laser marking mechanism also includes a second base, a translation seat and a translation drive element, the translation drive element is connected to the second base, the translation seat is movably connected to the second base, the translation seat is connected to the translation drive element, the translation drive element can drive the translation seat to move relative to the second base, and the laser machine is connected to the translation seat.

[0017] In the above-mentioned digital twin-based automobile door handle assembly tool, the translation seat is provided with a rotatable rotating seat, the laser machine is arranged on the rotating seat and is rotatably connected to the translation seat through the rotating seat, the second base is provided with a rack, and the rotating seat is provided with a gear, and the gear is meshed with the rack, and when the translation driving element drives the translation seat to move relative to the second base, the rotating seat rotates relative to the translation seat.

[0018] In the above-mentioned digital twin-based automobile door handle assembly tool, the transmission component also includes a lifting component and a second conveyor belt. The number of the lifting components is two and the two lifting components are respectively located at the two ends of the first conveyor belt, and the second conveyor belt is located below the first conveyor belt. The lifting component includes a lifting drive element and a third conveyor belt. The third conveyor belt is connected to the lifting drive element, and the third conveyor belt can drive the third conveyor belt to rise and fall.

[0019] In the above-mentioned digital twin-based automobile door handle assembly tool, the transmission component also includes a material unloading table, a two-axis mobile drive component and a grabbing component. The first conveyor belt also has a sixth position. The first conveyor belt can drive the material holder to move to the sixth position. The grabbing component is connected to the two-axis mobile drive component. The two-axis mobile drive component can drive the grabbing component to move along the XZ axes. When the material holder moves to the sixth position, the two-axis mobile drive component drives the grabbing component to grab the workpiece of the material holder to the unloading table.

[0020] In the above-mentioned digital twin-based automobile door handle assembly tool, the unloading platform is the fourth conveyor belt.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The material holder is driven to move to different positions through the transmission mechanism, and the automatic loading and installation of the handle, the automatic oiling of the handle, the automatic loading and installation of the shell, the automatic loading and installation of the spring, and the automatic loading and installation of the pin are completed in sequence, realizing automated assembly, making the production continuous and speeding up the production rhythm.

[0023] 2. The gripper cylinder can drive the two oiling blocks to move closer to or farther from each other. When the three-axis mobile drive assembly drives the gripper cylinder to move closer to or farther from the material base, the gripper cylinder drives the two oiling blocks to move away from each other to prevent the oil from being rubbed onto other components. When the three-axis mobile drive assembly drives the gripper cylinder to align with the material base, the gripper cylinder drives the two oiling blocks to move closer to each other to oil the handle.

[0024] 3. When the dislocation seat moves to the upper pin position, the fourth loading plate is connected to the dislocation seat. When the dislocation seat moves to the pin driving position, the pin driving assembly is used to drive the pin of the upper pin assembly into the material seat, thereby ensuring that the pin is dislocated after loading and only one pin is driven into the workpiece.

[0025] 4. The translation drive element can drive the translation seat to move relative to the second base, and the same laser marking mechanism can be used to laser mark the car door handles in two different directions without setting up two symmetrical laser machines.

[0026] 5. When the translation drive element drives the translation seat to move relative to the second base, the rotating seat rotates relative to the translation seat. Therefore, the laser machine will rotate while moving to adapt to the different angles required for marking of car door handles in two different directions.

[0027] 6. Unloading can be carried out before the first position of the first conveyor belt, after the fifth position of the first conveyor belt, or at any position of the second conveyor belt or at any position of the third conveyor belt, so that the production line composed of the first conveyor belt, the second conveyor belt and the two lifting assemblies can work in a cycle.

[0028] 7. The material holder is driven to move to the sixth position by the first conveyor belt, and the two-axis mobile drive assembly drives the grabbing assembly to grab the workpiece of the material holder to the unloading table, thereby realizing automatic unloading of the assembled automobile door handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the automobile door handle assembly tooling based on digital twin of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the transmission mechanism of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the transmission mechanism of the present invention from another perspective.

[0032] Figure 4 It is a structural schematic diagram of the handle feeding mechanism and the handle oiling mechanism of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the handle oiling mechanism of the present invention.

[0034] Figure 6It is a structural schematic diagram of the shell feeding mechanism of the present invention.

[0035] Figure 7 It is a structural schematic diagram of the spring pin mechanism of the present invention.

[0036] Figure 8 It is a structural schematic diagram of the laser marking mechanism of the present invention.

[0037] In the figure, 110, the first conveyor belt; 120, the material seat; 131, the lifting drive element; 132, the third conveyor belt; 140, the second conveyor belt; 150, the fourth conveyor belt; 160, the two-axis mobile drive assembly; 170, the grab assembly; 200, the handle loading mechanism; 210, the first loading tray; 220, the first robot; 300, the handle oiling mechanism; 310, the three-axis mobile drive assembly; 321, the gripper cylinder; 322, the oiling block; 400, the shell loading mechanism; 410, the second loading tray Material tray; 420, second robot arm; 500, spring pin driving mechanism; 510, third loading tray; 520, third robot arm; 530, fourth loading tray; 541, first base; 542, offset seat; 543, offset driving element; 551, pin driving rod; 552, pin driving element; 600, laser marking mechanism; 610, laser machine; 620, second base; 621, rack; 630, translation seat; 631, rotating seat; 632, gear; 640, translation driving element. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0044] like Figure 1-Figure 8 As shown, a car door handle assembly tool based on digital twin includes: a transmission mechanism, a handle feeding mechanism 200, a handle oiling mechanism 300, a shell feeding mechanism 400 and a spring pin mechanism 500.

[0045] Specifically, the transmission mechanism includes a first transmission belt 110 and a material support 120. The first transmission belt 110 has a first position, a second position, a third position and a fourth position. The first transmission belt 110 can drive the material support 120 to move to the first position, the second position, the third position or the fourth position.

[0046] Specifically, the handle loading mechanism 200 includes a first loading tray 210 and a first robot arm 220 . When the material holder 120 moves to the first position, the first robot arm 220 is used to grab the handle of the first loading tray 210 to the material holder 120 .

[0047] Specifically, the handle oiling mechanism 300 includes a three-axis mobile drive assembly 310 and a handle oiling assembly, and the handle oiling assembly is connected to the three-axis mobile drive assembly 310. The three-axis mobile drive assembly 310 can drive the handle oiling assembly to move along the XYZ three axes. When the material holder 120 moves to the second position, the three-axis mobile drive assembly 310 drives the handle oiling assembly to oil the handle of the material holder 120.

[0048] Furthermore, the three-axis mobile driving assembly 310 is a prior art, and includes a combination of actuators respectively arranged along the three axes of X, Y, and Z, so that the components installed thereon can be driven to move along the three axes of X, Y, and Z.

[0049] Specifically, the shell loading mechanism 400 includes a second loading tray 410 and a second robot arm 420 . When the material holder 120 moves to the third position, the second robot arm 420 is used to grab the shell of the second loading tray 410 to the material holder 120 .

[0050] Specifically, the spring pin driving mechanism 500 includes a third loading tray 510, a third robot 520, a fourth loading tray 530, an upper pin assembly and a pin driving assembly. When the material base 120 moves to the fourth position, the third robot 520 is used to load the spring of the third loading tray 510 into the material base 120, the upper pin assembly is used to take the pin of the fourth loading tray 530, and the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material base 120.

[0051] It is worth noting here that the workpiece refers to an assembly formed by the handle, the housing and the spring.

[0052] In this embodiment, the material holder 120 is moved to different positions by the transmission mechanism, and the automatic loading and installation of the handle, the automatic oiling of the handle, the automatic loading and installation of the shell, the automatic loading and installation of the spring, and the automatic loading and installation of the pin are completed in sequence, thereby realizing automated assembly, making the production continuous, and speeding up the production rhythm.

[0053] like Figure 1 , Figure 4 , Figure 5 As shown, on the basis of the above embodiment, the handle oiling assembly includes a clamping cylinder 321 and an oiling block 322, the clamping cylinder 321 is connected to the three-axis mobile drive assembly 310, the three-axis mobile drive assembly 310 can drive the clamping cylinder 321 to move along the XYZ three axes, the number of the oiling blocks 322 is two and the two oiling blocks 322 are connected to the clamping cylinder 321, the clamping cylinder 321 can drive the two oiling blocks 322 to move closer to or away from each other.

[0054] In this embodiment, the clamping cylinder 321 can drive the two oiling blocks 322 to move closer to or away from each other. When the three-axis mobile drive assembly 310 drives the clamping cylinder 321 to move closer to or away from the material holder 120, the clamping cylinder 321 drives the two oiling blocks 322 to move away from each other to prevent the oil from being rubbed onto other components. When the three-axis mobile drive assembly 310 drives the clamping cylinder 321 to align with the material holder 120, the clamping cylinder 321 drives the two oiling blocks 322 to move closer to each other to oil the handle.

[0055] like Figure 1 , Figure 7 As shown, on the basis of the above embodiment, the upper pin assembly also includes a first base 541, a misaligned seat 542 and a misaligned driving element 543, the first base 541 includes an upper pin position and a pin driving position, the misaligned seat 542 is movably connected to the first base 541, the misaligned seat 542 is connected to the misaligned driving element 543, the misaligned driving element 543 can drive the misaligned seat 542 to move to the upper pin position or the pin driving position, when the misaligned seat 542 moves to the upper pin position, the fourth loading tray 530 is connected to the misaligned seat 542, when the misaligned seat 542 moves to the pin driving position, the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material seat 120.

[0056] In this embodiment, when the offset seat 542 moves to the upper pin position, the fourth loading tray 530 is connected to the offset seat 542. When the offset seat 542 moves to the pin driving position, the pin driving assembly is used to drive the pin of the upper pin assembly into the material seat 120, thereby ensuring that the pin is displaced after loading so that only one pin is driven into the workpiece.

[0057] like Figure 1 , Figure 7 As shown, based on the above embodiment, the pinning assembly includes a pinning rod 551 and a pinning drive element 552, and the pinning rod 551 is connected to the pinning drive element 552. When the offset seat 542 moves to the pinning position, the pinning drive element 552 can drive the pinning rod 551 to move and pass through the offset seat 542.

[0058] Specifically, the pin driving element 552 may be a cylinder.

[0059] In this embodiment, when the offset seat 542 moves to the pinning position, the pinning driving element 552 can drive the pinning rod 551 to move and pass through the offset seat 542, thereby driving the pin into the workpiece of the material seat 120.

[0060] like Figure 1 , Figure 7 , Figure 8As shown, on the basis of the above embodiment, it also includes a laser marking mechanism 600, and the laser marking mechanism 600 includes a laser machine 610. The first conveyor belt 110 also has a fifth position. The first conveyor belt 110 can drive the material holder 120 to move to the fifth position. When the material holder 120 moves to the fifth position, the laser machine 610 is aligned with the material holder 120.

[0061] In this embodiment, after the automobile door handle is assembled, it can also be laser marked.

[0062] like Figure 1 , Figure 7 , Figure 8 As shown, on the basis of the above embodiment, the laser marking mechanism 600 also includes a second base 620, a translation seat 630 and a translation drive element 640, the translation drive element 640 is connected to the second base 620, the translation seat 630 is movably connected to the second base 620, the translation seat 630 is connected to the translation drive element 640, the translation drive element 640 can drive the translation seat 630 to move relative to the second base 620, and the laser machine 610 is connected to the translation seat 630.

[0063] Specifically, the translation driving element 640 may be a cylinder.

[0064] It is worth noting here that, since the automobile door handle has two directions, the positions required for marking when assembled on the material holder 120 are different.

[0065] In this embodiment, the translation drive element 640 can drive the translation seat 630 to move relative to the second base 620, and the same laser marking mechanism 600 can be used to laser mark the car door handles in two different directions without setting up two symmetrical laser machines 610.

[0066] like Figure 1 , Figure 7 , Figure 8 As shown, on the basis of the above embodiment, the translation seat 630 is provided with a rotatable rotating seat 631, the laser machine 610 is arranged on the rotating seat 631 and is rotatably connected to the translation seat 630 through the rotating seat 631, the second base 620 is provided with a rack 621, the rotating seat 631 is provided with a gear 632, the gear 632 is engaged with the rack 621, and when the translation driving element 640 drives the translation seat 630 to move relative to the second base 620, the rotating seat 631 rotates relative to the translation seat 630.

[0067] In this embodiment, when the translation drive element 640 drives the translation seat 630 to move relative to the second base 620, the rotating seat 631 rotates relative to the translation seat 630, so the laser machine 610 also rotates while moving to adapt to the different angles required for marking of car door handles in two different directions.

[0068] like Figure 1-Figure 3 As shown, on the basis of the above embodiment, the transmission component also includes a lifting component and a second transmission belt 140, the number of the lifting components is two and the two lifting components are respectively located at the two ends of the first transmission belt 110, the second transmission belt 140 is located below the first transmission belt 110, the lifting component includes a lifting drive element 131 and a third transmission belt 132, the third transmission belt 132 is connected to the lifting drive element 131, and the third transmission belt 132 can drive the third transmission belt 132 to rise and fall.

[0069] Specifically, the lifting driving element 131 may be a cylinder.

[0070] In this embodiment, unloading can be carried out before the first position of the first conveyor belt 110, after the fifth position of the first conveyor belt 110, or at any position of the second conveyor belt 140, or at any position of the third conveyor belt 132, so that the production line composed of the first conveyor belt 110, the second conveyor belt 140 and the two lifting components can work in a cycle.

[0071] like Figure 1-Figure 3 As shown, on the basis of the above embodiment, the transmission component also includes a material unloading table, a two-axis mobile drive component 160 and a grabbing component 170, the first conveyor belt 110 also has a sixth position, the first conveyor belt 110 can drive the material holder 120 to move to the sixth position, the grabbing component 170 is connected to the two-axis mobile drive component 160, the two-axis mobile drive component 160 can drive the grabbing component 170 to move along the XZ two axes, when the material holder 120 moves to the sixth position, the two-axis mobile drive component 160 drives the grabbing component 170 to grab the workpiece of the material holder 120 to the unloading table.

[0072] Specifically, the gripping assembly 170 may be a vacuum nozzle or a pneumatic gripper.

[0073] Specifically, the unloading platform is the fourth conveyor belt 150 .

[0074] Furthermore, the two-axis movement driving assembly 160 is a prior art, and includes a combination of actuators respectively arranged along the X and Z axes, so that the components installed thereon can be driven to move along the X and Z axes.

[0075] In this embodiment, the first conveyor belt 110 drives the material holder 120 to move to the sixth position, and the two-axis mobile drive assembly 160 drives the grabbing assembly 170 to grab the workpiece of the material holder 120 to the unloading table, thereby realizing automatic unloading of the assembled automobile door handles.

Claims

1. A car door handle assembly tool based on digital twin, characterized in that: include: A conveying mechanism, comprising a first conveying belt and a material holder, wherein the first conveying belt has a first position, a second position, a third position and a fourth position, and the first conveying belt can drive the material holder to move to the first position, the second position, the third position or the fourth position; A handle loading mechanism, comprising a first loading tray and a first robot arm, wherein the first robot arm is used to grab the handle of the first loading tray to the material seat when the material seat moves to the first position; The handle oiling mechanism comprises a three-axis movable driving assembly and a handle oiling assembly, wherein the handle oiling assembly is connected to the three-axis movable driving assembly, and the three-axis movable driving assembly can drive the handle oiling assembly to move along the XYZ three axes, and when the material holder moves to the second position, the three-axis movable driving assembly drives the handle oiling assembly to oil the handle of the material holder; A shell loading mechanism, comprising a second loading tray and a second robot arm, wherein the second robot arm is used to grab the shell of the second loading tray to the material seat when the material seat moves to the third position; The spring pin driving mechanism comprises a third loading tray, a third robot arm, a fourth loading tray, an upper pin assembly and a pin driving assembly. When the material seat moves to the fourth position, the third robot arm is used to load the spring of the third loading tray into the material seat, the upper pin assembly is used to take the pin of the fourth loading tray, and the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material seat.

2. The automobile door handle assembly tool based on digital twinning according to claim 1, characterized in that: The handle oiling assembly includes a clamping cylinder and an oiling block. The clamping cylinder is connected to the three-axis mobile drive assembly. The three-axis mobile drive assembly can drive the clamping cylinder to move along the XYZ three axes. There are two oiling blocks and both of them are connected to the clamping cylinder. The clamping cylinder can drive the two oiling blocks to move closer to or away from each other.

3. The automobile door handle assembly tool based on digital twinning according to claim 1, characterized in that: The upper pin assembly also includes a first base, a misaligned seat and a misaligned driving element. The first base includes an upper pin position and a pin driving position. The misaligned seat is movably connected to the first base. The misaligned seat is connected to the misaligned driving element. The misaligned driving element can drive the misaligned seat to move to the upper pin position or the pin driving position. When the misaligned seat moves to the upper pin position, the fourth loading tray is connected to the misaligned seat. When the misaligned seat moves to the pin driving position, the pin driving assembly is used to drive the pin of the upper pin assembly into the workpiece of the material seat.

4. The automobile door handle assembly tool based on digital twinning according to claim 3, characterized in that: The pinning assembly includes a pinning rod and a pinning drive element, wherein the pinning rod is connected to the pinning drive element. When the offset seat moves to the pinning position, the pinning drive element can drive the pinning rod to move and pass through the offset seat.

5. The automobile door handle assembly tool based on digital twinning according to claim 1, characterized in that: It also includes a laser marking mechanism, which includes a laser machine. The first conveyor belt also has a fifth position. The first conveyor belt can drive the material holder to move to the fifth position. When the material holder moves to the fifth position, the laser machine is aligned with the material holder.

6. The automobile door handle assembly tool based on digital twinning according to claim 5, characterized in that: The laser marking mechanism also includes a second base, a translation seat and a translation drive element, the translation drive element is connected to the second base, the translation seat is movably connected to the second base, the translation seat is connected to the translation drive element, the translation drive element can drive the translation seat to move relative to the second base, and the laser machine is connected to the translation seat.

7. The automobile door handle assembly tool based on digital twinning according to claim 6, characterized in that: The translation seat is provided with a rotatable rotating seat, the laser machine is arranged on the rotating seat and is rotatably connected to the translation seat through the rotating seat, the second base is provided with a rack, the rotating seat is provided with a gear, the gear is meshed with the rack, and when the translation driving element drives the translation seat to move relative to the second base, the rotating seat rotates relative to the translation seat.

8. The automobile door handle assembly tool based on digital twinning according to claim 1, characterized in that: The transmission component also includes a lifting component and a second conveyor belt. The number of the lifting components is two and the two lifting components are respectively located at the two ends of the first conveyor belt. The second conveyor belt is located below the first conveyor belt. The lifting component includes a lifting drive element and a third conveyor belt. The third conveyor belt is connected to the lifting drive element and can drive the third conveyor belt to rise and fall.

9. The automobile door handle assembly tool based on digital twinning according to claim 8, characterized in that: The transmission component also includes a material unloading table, a two-axis mobile drive component and a grabbing component. The first conveyor belt also has a sixth position. The first conveyor belt can drive the material holder to move to the sixth position. The grabbing component is connected to the two-axis mobile drive component. The two-axis mobile drive component can drive the grabbing component to move along the XZ axes. When the material holder moves to the sixth position, the two-axis mobile drive component drives the grabbing component to grab the workpiece of the material holder to the material unloading table.

10. The automobile door handle assembly tool based on digital twinning according to claim 9, characterized in that: The unloading platform is the fourth conveyor belt.

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