Door plate assembling production line

Abstract

The utility model belongs to the technical field of automobile part assembling, and provides a door plate assembling production line. The device comprises a base, a conveying mechanism, a transferring mechanism and a door plate tool, wherein the base is provided with an upper layer and a lower layer; the conveying mechanism comprises a first conveying line arranged on the upper layer of the base and a second conveying line arranged on the lower layer of the base, and the conveying directions of the first conveying line and the second conveying line are opposite; the transfer mechanisms are arranged on the two sides of the base and located at the two ends of the conveying mechanism in the conveying direction. The door plate tools are arranged on the conveying mechanism and / or the transferring mechanism, the first conveying line conveys the door plate tools to an assembling station, the second conveying line is used for recycling the door plate tools, and the transferring mechanism transfers the door plate tools located on the first conveying line and the second conveying line. According to the utility model, the work intensity of operators can be reduced, and the cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly, in particular to a door panel assembly production line. Background Art

[0002] Usually, the door panels are assembled on a bench. Multiple benches are distributed in the assembly workshop, and a door panel is placed on each bench for assembly. Since each bench corresponds to a different assembly process and multiple benches are dispersed, operators need to undertake ineffective labor such as lifting, transporting, and storing the door panels, which results in high intensity of assembly work for operators. In addition, during the transportation process, the door panels are prone to surface damage and scratches, which affect the quality of the door panels.

[0003] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a door panel assembly production line to solve the problem of high labor intensity of door panel assembly in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a door panel assembly production line, which is specifically configured as follows: it includes a base, a conveying mechanism, a transfer mechanism and a door panel tooling, wherein the base is provided with an upper and a lower layer; the conveying mechanism includes a first conveying line provided on the upper layer of the base and a second conveying line provided on the lower layer of the base, and the transmission directions of the first conveying line and the second conveying line are opposite; the transfer mechanism is provided on both sides of the base and is located at both ends of the transmission direction of the conveying mechanism; the door panel tooling is provided on the conveying mechanism and / or the transfer mechanism, the first conveying line conveys the door panel tooling to the assembly station, the second conveying line is used to recover the door panel tooling, and the transfer mechanism transfers the door panel tooling located on the first conveying line and the second conveying line.

[0006] Optionally, the door panel tooling includes a base plate arranged on the conveying mechanism, a rotating assembly arranged on the base plate, and a supporting assembly arranged on the rotating assembly, wherein the supporting assembly is used to place the door panel, and the rotating assembly drives the supporting assembly to rotate to drive the door panel to rotate.

[0007] Optionally, the rotating assembly includes a first bearing seat connected to the base plate, a rotating shaft connected to the first bearing seat, a second bearing seat connected to the supporting assembly, a first bearing and a second bearing, the first bearing is sleeved on the first bearing seat, and the supporting assembly is pressed on the first bearing, and the second bearing is sleeved on the rotating shaft and arranged in the first mounting hole of the second bearing seat.

[0008] Optionally, the support assembly includes a support plate and a positioning block arranged on the support plate, the positioning block is provided with an inlet portion, a positioning notch and an outlet portion that are connected to each other; the door panel tooling also includes a positioning assembly arranged on the base plate, the positioning assembly includes a positioning pin, and when the support assembly rotates, the positioning pin slides into the positioning notch along the inlet portion or slides out of the positioning notch along the outlet portion to position or release the support assembly.

[0009] Optionally, the positioning assembly also includes a mounting seat arranged on the base plate, a limit pin connected to the mounting seat and an elastic member sleeved on the positioning pin, the mounting seat is provided with a second mounting hole, the positioning pin passes through the second mounting hole, and a limit boss is provided at the front end of the positioning pin, the elastic member is located between the bottom of the second mounting hole and the limit boss, the rear end of the positioning pin extending out of the second mounting hole is provided with a sliding groove along its own axial direction, the limit pin passes through the sliding groove and is slidably connected to the sliding groove.

[0010] Optionally, the positioning blocks and positioning assemblies are arranged in one-to-one correspondence, and more than two positioning blocks and more than two positioning assemblies are provided and distributed along the circumference of the support plate.

[0011] Optionally, the door panel assembly production line also includes more than two limiting mechanisms, which are arranged in the transmission direction of the conveying mechanism. The limiting mechanism includes a first driving member and a limiting plate connected to the driving end of the first driving member, and the first driving member drives the limiting plate to extend or retract to block or release the door panel tooling.

[0012] Optionally, the transfer mechanism includes a second driving member connected to the base, a rotating wheel connected to the driving end of the second driving member, a connecting belt wrapped around the rotating wheel, and a conveying assembly, wherein the first end of the connecting belt is connected to the base, and the second end of the connecting belt is connected to the conveying assembly. When the second driving member drives the rotating wheel to rise or fall, the conveying assembly is driven to rise or fall, and the door panel tooling is conveyed to the first conveyor line or the second conveyor line through the conveying assembly.

[0013] Optionally, the transfer mechanism also includes a guide assembly connected to the conveying assembly, the guide assembly includes more than two rollers and a limiting belt simultaneously connected to the plurality of rollers, a guide rod is provided on the base, two roller clamps are arranged on both sides of the guide rod, and when the conveying assembly rises or falls, the rollers rise or fall along the guide rod.

[0014] Optionally, the first conveyor line and the second conveyor line both include a transmission seat connected to the base, a third driving member connected to the transmission seat, a first driving wheel connected to the driving end of the third driving member, a first driven wheel, and a transmission belt connected to both the first driving wheel and the first driven wheel, the door panel tooling is arranged on the transmission belt, and the third driving member drives the transmission belt to drive the door panel tooling to move.

[0015] As described above, the door panel assembly production line of the utility model has the following beneficial effects:

[0016] By respectively arranging a first conveyor line and a second conveyor line with opposite transmission directions on the upper and lower layers of the base, a door panel tooling for placing door panels is arranged on the first conveyor line and / or the second conveyor line. The first conveyor line conveys the door panels to various different assembly stations to complete various assembly processes of the door panels, which is beneficial to reducing the workload of operators; and the transfer mechanism can transfer the door panel tooling on the first conveyor line to the second conveyor line, and can also transfer the door panel tooling on the second conveyor line to the first conveyor line, so that the door panel tooling can be reused, which is beneficial to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of a door panel assembly production line according to an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram showing another perspective of a door panel assembly production line according to an embodiment of the utility model;

[0019] Figure 3 Shown is a schematic structural diagram of a door panel tooling according to an embodiment of the utility model;

[0020] Figure 4 Display as Figure 3 Schematic diagram of the structure of the local A in the middle;

[0021] Figure 5 Display as Figure 3 Structural diagram of the middle section AA;

[0022] Figure 6 Display as Figure 5 The structural diagram of the positioning block;

[0023] Figure 7 Display as Figure 5 The structural diagram of the positioning component;

[0024] Figure 8 Shown is a partial structural schematic diagram of a door panel assembly production line according to an embodiment of the present utility model.

[0025] Description of Reference Numerals

[0026] 1-base; 11-guide rod;

[0027] 2- conveying mechanism; 21- transmission seat;

[0028] 3-door panel tooling; 31-bottom plate; 32-rotating assembly; 321-first bearing seat; 322-rotating shaft; 323-second bearing seat; 324-first bearing; 325-second bearing; 33-support assembly; 331-support plate; 332-positioning block; 3321-introduction part; 3322-positioning notch; 3323-exit part; 34-positioning assembly; 341-positioning pin; 3411-limiting boss; 3412-sliding groove; 342-mounting seat; 3421-second mounting hole; 343-limiting pin; 344-elastic member; 35-anti-collision assembly; 351-extension plate; 352-anti-collision member;

[0029] 4-transport mechanism; 41-second driving member; 42-rotating wheel; 43-connecting belt; 44-transmission assembly; 441-fourth driving member; 442-second driving wheel; 443-transmission shaft; 444-transmission wheel; 445-belt; 446-transmission belt; 447-support platform; 45-guide assembly; 451-roller; 452-limiting belt;

[0030] 5-Door panel;

[0031] 6-limiting mechanism; 61-first driving member; 62-limiting plate. DETAILED DESCRIPTION

[0032] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The form, quantity and proportion of each component during actual implementation can be changed at will, and the component layout form may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantial change of the technical content.

[0034] like Figure 1 , Figure 2 As shown, some embodiments of the present application provide a door panel assembly production line, including a base 1 with upper and lower layers, a conveying mechanism 2 installed on the base 1, a door panel tooling 3 placed on the conveying mechanism 2, and a transfer mechanism 4. The conveying mechanism 2 includes a first conveying line and a second conveying line, the first conveying line is installed on the upper layer of the base 1, and the second conveying line is installed on the lower layer of the base 1. The transfer mechanism 4 is installed on both sides of the base 1 and is located at both ends of the transmission direction of the first conveying line and the second conveying line.

[0035] The first conveyor line conveys the door panel tooling 3 to different assembly stations to complete the various assembly processes of the door panel 5, which is beneficial to reducing the workload of the operators. Since the transmission directions of the first conveyor line and the second conveyor line are opposite, when the door panel 5 is assembled at the last assembly station, the door panel tooling 3 of the assembly station on the first conveyor line is transferred to the second conveyor line by the transfer mechanism 4 located at the tail end of the conveying direction of the first conveyor line; then, the second conveyor line conveys the door panel tooling 3 to the corresponding position below the first assembly station of the first conveyor line. When the first conveyor line needs the door panel tooling 3, the transfer mechanism 4 located at the head end of the conveying direction of the first conveyor line transfers the door panel tooling 3 on the second conveyor line to the first conveyor line, and the door panel tooling 3 is reused in this reciprocating manner, which is beneficial to reducing costs.

[0036] It should be noted that the door panels 5 located at the head end and the tail end of the transmission direction of the first conveyor line can be transferred from the previous station to the first conveyor line or from the first conveyor line to the next station by a robot.

[0037] Exemplarily, the base 1 may be a main frame formed by welding rectangular tubes.

[0038] In some embodiments, in order to position the door panel 5 at each assembly station, more than two limiting mechanisms 6 are provided in the transmission direction of the conveying mechanism 2. The number of limiting mechanisms 6 can be 2, 3, 4, etc., and they are provided accordingly according to the number of assembly stations. Each assembly station is provided with a limiting mechanism 6. The limiting mechanism 6 can be provided only on the first conveyor line, or on both the first conveyor line and the second conveyor line.

[0039] The limiting mechanism 6 includes a first driving member 61 and a limiting plate 62 connected to the driving end of the first driving member 61. When the first driving member 61 drives the limiting plate 62 to extend, the limiting plate 62 blocks the door panel fixture 3 at the assembly station corresponding to the limiting mechanism 6, so that the operator can assemble the door panel 5. When the operator completes the assembly of the door panel 5, the first driving member 61 drives the limiting plate 62 to retract, releasing the door panel fixture 3, so that the first conveyor line conveys the door panel fixture 3 to the next assembly station. This process is repeated until the door panel fixture 3 completes all assembly processes on the first conveyor line.

[0040] Exemplarily, the first driving member 61 provides power for the extension and retraction of the limiting plate 62 , including but not limited to being set as a cylinder, a blocker, etc.

[0041] like Figures 3 to 7 As shown, in some embodiments, the door panel tooling 3 includes a bottom plate 31 disposed on the conveying mechanism 2, a rotating assembly 32 installed on the bottom plate 31, and a supporting assembly 33 installed on the rotating assembly 32, wherein the supporting assembly 33 is used to place the door panel 5. When the operator needs to rotate the door panel 5 to complete the assembly of the current assembly process of the door panel 5, the operator can apply an external force to the rotating assembly 32 by holding the supporting assembly 33, so that the supporting assembly 33 drives the rotating assembly 32 to rotate, thereby driving the door panel 5 to rotate, which is conducive to reducing the work intensity of the operator.

[0042] Specifically, the rotating assembly 32 includes a first bearing seat 321 connected to the bottom plate 31, a rotating shaft 322 connected to the first bearing seat 321, a second bearing seat 323 connected to the supporting assembly 33, a first bearing 324, and a second bearing 325. The first bearing 324 is sleeved and mounted on the first bearing seat 321, and the supporting assembly 33 is pressed on the first bearing 324, which can provide support for the supporting assembly 33 during rotation. The second bearing 325 is installed in the first mounting hole of the second bearing seat 323, and the second bearing 325 is sleeved and mounted on the rotating shaft 322, so that the supporting assembly 33 rotates along the axis of the rotating shaft 322.

[0043] For example, the first bearing 324 may be configured as a thrust bearing or the like, and the second bearing 325 may be configured as a ball bearing or the like.

[0044] In some embodiments, the support assembly 33 includes a support plate 331 and a positioning block 332 mounted on the support plate 331, and the positioning block 332 is provided with a connected introduction portion 3321, a positioning notch 3322 and an outlet portion 3323. In this embodiment, the positioning block 332 is located on the side of the support plate 331 facing the bottom plate 31. The door panel tooling 3 also includes a positioning assembly 34 mounted on the bottom plate 31, and the positioning assembly 34 includes a positioning pin 341. In this embodiment, the positioning assembly 34 is located below the support plate 331.

[0045] When the door panel 5 needs to be assembled at the next position, an external force is applied to make the positioning pin 341 slide out of the positioning notch 3322 along the lead-out portion 3323 of the positioning block 332, thereby releasing the support assembly 33 to rotate the door panel 5. When the rotating positioning block 332 contacts the next positioning pin 341, the positioning pin 341 slides into the positioning notch 3322 along the lead-in portion 3321 of the positioning block 332, thereby positioning the support assembly 33 so that the operator can assemble the door panel 5.

[0046] Specifically, the positioning assembly 34 also includes a mounting seat 342 mounted on the bottom plate 31, a limiting pin 343 mounted on the mounting seat 342, and an elastic member 344 sleeved on the positioning pin 341. The mounting seat 342 is provided with a second mounting hole 3421, the positioning pin 341 passes through the second mounting hole 3421, and a limiting boss 3411 is provided at the front end of the positioning pin 341, and the elastic member 344 is located between the bottom of the second mounting hole 3421 and the limiting boss 3411. The rear end of the positioning pin 341 extending out of the second mounting hole 3421 is provided with a sliding groove 3412 along its own axial direction, and the limiting pin 343 passes through the sliding groove 3412 and is slidably connected with the sliding groove 3412.

[0047] When the positioning pin 341 is retracted under the action of external force, the elastic member 344 is compressed, and due to the existence of the limiting pin 343, the positioning pin 341 moves along the length direction of the sliding groove 3412. When the external force is removed, the positioning pin 341 extends out under the action of the restoring force of the elastic member 344 and moves along the length direction of the sliding groove 3412. And due to the existence of the restoring force of the elastic member 344, when the positioning pin 341 extends into the positioning notch 3322, the positioning pin 341 will not slide out of the positioning notch 3322 without the action of external force, ensuring the normal assembly work of the operator. In this process, the limiting pin 343 limits the positioning pin 341 to prevent the positioning pin 341 from popping out of the mounting seat 342 under the action of the restoring force of the elastic member 344.

[0048] Exemplarily, the elastic member 344 may be configured as a spring or the like.

[0049] Exemplarily, there are more than two positioning blocks 332, more than two positioning assemblies 34, and the positioning blocks 332 and the positioning assemblies 34 are arranged in a one-to-one correspondence. That is, when there are two positioning blocks 332, there are also two positioning assemblies 34; when there are three positioning blocks 332, there are also three positioning assemblies 34, and so on. The positioning blocks 332 and the positioning assemblies 34 are distributed along the circumference of the support plate 331. It should be noted that the number of positioning blocks 332 and positioning assemblies 34 is set according to the number of positions where the door panels 5 need to be assembled at each assembly station, and the distribution angle is also set according to the distribution angle of the positions where the door panels 5 need to be assembled.

[0050] It should be noted that, in order to prevent the support assembly 33 from colliding with the operator during the rotation process, an anti-collision assembly 35 is also installed on the bottom plate 31. The anti-collision assembly 35 includes an extension plate 351 and an anti-collision member 352 installed on the extension plate 351, and the anti-collision member 352 is located at one end of the extension plate 351 away from the rotating assembly 32. The anti-collision member 352 is located on the outer side of the support assembly 33, and the material of the anti-collision member 352 is set to be a plastic material.

[0051] In some embodiments, the first conveyor line and the second conveyor line each include a transmission seat 21 connected to the base 1, a third driving member connected to the transmission seat 21, a first driving wheel connected to the driving end of the third driving member, a first driven wheel, and a transmission belt connected to both the first driving wheel and the first driven wheel. The door panel tooling 3 is placed on the transmission belt, and when the third driving member drives the transmission belt to transmit, the transmission of the transmission belt drives the door panel tooling 3 to move, thereby transporting the door panel tooling 3 to each assembly station. It should be noted that the transmission seat 21 can provide support for the transmission belt.

[0052] Exemplarily, the transmission seat 21 can be configured as a power transmission track made of a double-speed chain aluminum material.

[0053] Exemplarily, the third driving member provides power for the rotation of the first driving wheel, including but not limited to being set as a servo motor, a stepper motor, etc.

[0054] Exemplarily, the transmission belt is used to convey the door panel tooling 3 to move, including but not limited to being set as a belt, a chain, etc.

[0055] like Figure 8As shown, in some embodiments, the transfer mechanism 4 includes a second driving member 41 connected to the base 1, a rotating wheel 42 connected to the driving end of the second driving member 41, a connecting belt 43 wound on the rotating wheel 42, and a conveying assembly 44. The first end of the connecting belt 43 is connected to the base 1, and the second end of the connecting belt 43 is connected to the conveying assembly 44. When the door panel tooling 3 needs to be transferred from the first conveying line to the second conveying line, the second driving member 41 drives the rotating wheel 42 to descend, and the second end of the connecting belt 43 descends under the gravity of the conveying assembly 44 and the door panel tooling 3, driving the conveying assembly 44 to descend, and then the door panel tooling 3 is transferred to the second conveying line through the conveying assembly 44. When the door panel tooling 3 needs to be transferred from the second conveying line to the first conveying line, the second driving member 41 drives the rotating wheel 42 to rise, driving the second end of the connecting belt 43 to rise, thereby driving the conveying assembly 44 to rise, and then the door panel tooling 3 is conveyed to the first conveying line through the conveying assembly 44.

[0056] Exemplarily, the second driving member 41 provides power for the rise or fall of the rotating wheel 42, including but not limited to being set as a hydraulic cylinder, a pneumatic cylinder, etc.

[0057] For example, in order to improve the stability of the door panel tooling 3 moving up and down, the rotating wheel 42 can be set as a gear, a sprocket, etc., and the connecting belt 43 can be set as a chain, etc.

[0058] Specifically, the transmission assembly 44 includes a fourth driving member 441 connected to the base 1, a second driving wheel 442 connected to the driving end of the fourth driving member 441, a transmission shaft 443 rotatably connected to the base 1, a transmission shaft 443 and a transmission wheel 444 connected to the transmission shaft 443, a belt 445 connected to the second driving wheel 442 and the second driven wheel, a conveyor belt 446, and a support platform 447 supporting the conveyor belt 446. The fourth driving member 441 drives the second driving wheel 442 to rotate, drives the second driven wheel to rotate, thereby drives the transmission shaft 443 to rotate, the rotation of the transmission shaft 443 drives the transmission wheel 444 to rotate, and finally drives the transmission belt 446 to transmit, so as to transport the door panel tooling 3 located on the conveyor belt 446 between the conveying mechanism 2 and the transfer mechanism 4. By changing the direction in which the fourth driving member 441 drives the second driving wheel 442 to rotate, the transmission component 44 transfers the door panel tooling 3 from the conveying mechanism 2 to the transfer mechanism 4, or transfers the door panel tooling 3 from the transfer mechanism 4 to the conveying mechanism 2.

[0059] Exemplarily, the fourth driving member 441 provides power for the rotation of the second driving wheel 442 , including but not limited to being set as a servo motor or the like.

[0060] In some embodiments, the transfer mechanism 4 further includes a guide assembly 45 connected to the conveying assembly 44, and the guide assembly 45 includes more than two rollers 451 and a limiting belt 452 simultaneously connected to the plurality of rollers 451. A guide rod 11 is provided on the base 1, and two rollers 451 are clamped on both sides of the guide rod 11. When the conveying assembly 44 rises or falls, the rollers 451 rise or fall synchronously along the guide rod 11 to guide the movement of the conveying platform.

[0061] In summary, the utility model provides a door panel assembly production line, which respectively arranges a first conveyor line and a second conveyor line with opposite transmission directions on the upper and lower layers of a base, and the first conveyor line and / or the second conveyor line are provided with door panel tooling for placing door panels. The first conveyor line transports the door panels to various different assembly stations to complete various assembly processes of the door panels, which is beneficial to reducing the workload of operators; and the transfer mechanism can transfer the door panel tooling on the first conveyor line to the second conveyor line, and can also transfer the door panel tooling on the second conveyor line to the first conveyor line, so that the door panel tooling can be reused, which is beneficial to reducing costs.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A door panel assembly production line, characterized in that: include: A base, provided with an upper layer and a lower layer; The conveying mechanism comprises a first conveying line arranged on the upper layer of the base and a second conveying line arranged on the lower layer of the base, wherein the conveying directions of the first conveying line and the second conveying line are opposite; A transfer mechanism, which is arranged on both sides of the base and located at both ends of the transmission direction of the conveying mechanism; The door panel tooling is arranged on the conveying mechanism and / or the transfer mechanism. The first conveying line conveys the door panel tooling to the assembly station, the second conveying line is used to recover the door panel tooling, and the transfer mechanism transfers the door panel tooling located on the first conveying line and the second conveying line.

2. The door panel assembly production line according to claim 1, characterized in that: The door panel tooling includes a base plate arranged on the conveying mechanism, a rotating component arranged on the base plate, and a supporting component arranged on the rotating component. The supporting component is used to place the door panel, and the rotating component drives the supporting component to rotate, so as to drive the door panel to rotate.

3. The door panel assembly production line according to claim 2, characterized in that: The rotating assembly includes a first bearing seat connected to the base plate, a rotating shaft connected to the first bearing seat, a second bearing seat connected to the supporting assembly, a first bearing and a second bearing, the first bearing being sleeved on the first bearing seat, and the supporting assembly being pressed on the first bearing, the second bearing being sleeved on the rotating shaft and arranged in a first mounting hole of the second bearing seat.

4. The door panel assembly production line according to claim 2, characterized in that: The support assembly includes a support plate and a positioning block arranged on the support plate, and the positioning block is provided with an introduction part, a positioning notch and an outlet part that are connected to each other; the door panel tooling also includes a positioning assembly arranged on the base plate, and the positioning assembly includes a positioning pin. When the support assembly rotates, the positioning pin slides into the positioning notch along the introduction part or slides out of the positioning notch along the outlet part to position or release the support assembly.

5. The door panel assembly production line according to claim 4, characterized in that: The positioning assembly also includes a mounting seat arranged on the base plate, a limiting pin connected to the mounting seat and an elastic member sleeved on the positioning pin, the mounting seat is provided with a second mounting hole, the positioning pin passes through the second mounting hole, and a limiting boss is provided at the front end of the positioning pin, the elastic member is located between the bottom of the second mounting hole and the limiting boss, the rear end of the positioning pin extending out of the second mounting hole is provided with a sliding groove along its own axial direction, the limiting pin passes through the sliding groove and is slidably connected to the sliding groove.

6. The door panel assembly production line according to claim 4, characterized in that: The positioning blocks and the positioning components are arranged in one-to-one correspondence, and more than two positioning blocks and more than two positioning components are arranged and distributed along the circumference of the support plate.

7. The door panel assembly production line according to claim 1, characterized in that: The door panel assembly production line also includes more than two limiting mechanisms, which are arranged in the transmission direction of the conveying mechanism. The limiting mechanism includes a first driving member and a limiting plate connected to the driving end of the first driving member. The first driving member drives the limiting plate to extend or retract to block or release the door panel tooling.

8. The door panel assembly production line according to claim 1, characterized in that: The transfer mechanism includes a second driving member connected to the base, a rotating wheel connected to the driving end of the second driving member, a connecting belt wound on the rotating wheel, and a conveying assembly, wherein the first end of the connecting belt is connected to the base, and the second end of the connecting belt is connected to the conveying assembly. When the second driving member drives the rotating wheel to rise or fall, the conveying assembly is driven to rise or fall, and the door panel tooling is conveyed to the first conveying line or the second conveying line through the conveying assembly.

9. The door panel assembly production line according to claim 8, characterized in that: The transfer mechanism also includes a guide assembly connected to the conveying assembly, the guide assembly includes more than two rollers and a limiting belt connected to the multiple rollers at the same time, a guide rod is provided on the base, and two rollers are clamped on both sides of the guide rod. When the conveying assembly rises or falls, the rollers rise or fall along the guide rod.

10. The door panel assembly production line according to claim 1, characterized in that: The first conveyor line and the second conveyor line both include a transmission seat connected to the base, a third driving member connected to the transmission seat, a first driving wheel connected to the driving end of the third driving member, a first driven wheel, and a transmission belt connected to both the first driving wheel and the first driven wheel, the door panel tooling is arranged on the transmission belt, and the third driving member drives the transmission belt to drive the door panel tooling to move.

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