Car door assembling and welding device

Abstract

According to the car door installing and welding device, the car door installing and welding device is improved, a car door production line is effectively simplified, and the reliability of a car door conveying mode is improved. The vehicle door assembling and welding device comprises a jacking assembly and a supporting part provided with a supporting face, roller assemblies are arranged at the top end of the jacking assembly, and the fixed axis of each roller assembly extends in the first direction; the roller assembly can vertically move up and down relative to the supporting surface under the action of the jacking assembly so as to be switched between a jacking position and a falling position; and in the jacking position, the height of the roller assembly is higher than that of the supporting surface, and in the falling position, the height of the roller assembly is lower than that of the supporting surface. According to the technical scheme, the rolling wheel assembly is integrated at the top end of the jacking assembly, the vehicle door is directly pushed into the next procedure through the rolling wheel assembly after jacking, and therefore the unit layout of a vehicle door production line is simplified, and the vehicle door conveying reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle door assembly welding, in particular to a vehicle door assembly welding device. Background Art

[0002] In the fields of railway transportation and logistics, covered wagons are essential freight transport vehicles. The design and manufacturing quality of their doors are directly related to cargo loading and unloading efficiency and transportation safety. As key components of covered wagons, doors are subject to particularly stringent performance requirements. Doors must not only offer excellent opening and closing flexibility to ensure convenient loading and unloading, but also offer excellent rainproof performance to protect cargo in inclement weather.

[0003] On the door production line, the door transfer method involves a central cylinder vertically lifting the door. Cylinders with rollers on either side extend horizontally, and the central cylinder then descends vertically, allowing the door to land on the rollers. The transfer process is completed in three steps by two units. However, this transfer method involves multiple units connected in series, making it relatively complex and reducing its reliability. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle door assembly welding device, which effectively simplifies the vehicle door production line and improves the reliability of the vehicle door transmission mode by improving the vehicle door assembly welding device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a vehicle door welding device, which includes a lifting assembly and a support portion provided with a support surface, the top of the lifting assembly is provided with a roller assembly, and the fixed axis of each roller assembly extends along a first direction; the roller assembly can move vertically upward and downward relative to the support surface under the action of the lifting assembly to switch between a lifting position and a falling position; in the lifting position, the height of the roller assembly is higher than the support surface, and in the falling position, the height of the roller assembly is lower than the support surface.

[0006] By adopting the technical solution in this application, a roller assembly is integrated at the top of the jacking assembly. After jacking, the car door can be directly pushed into the next process through the roller assembly, thereby simplifying the unit layout of the car door production line and improving the reliability of car door transmission.

[0007] Optionally, a plurality of roller assemblies are provided at both ends of the first direction, and the roller assemblies on the same side are located at the same height when in the jacking position.

[0008] Optionally, the jacking assembly includes a first limiter, which is used to limit the jacking position; the first limiter is movably connected to the jacking assembly.

[0009] Optionally, the support portion is provided with a first adapting portion adapted to the first limiting member, and the first limiting member is located at a lower side of the first adapting portion.

[0010] Optionally, the lifting assembly includes a power output rod, and the roller assembly is arranged at the top end of the power output rod; the first limiting member is sleeved on the outside of the power output rod and is threadedly connected to the power output rod.

[0011] Optionally, it further comprises a plurality of positioning devices arranged on the supporting surface, wherein the plurality of positioning devices define a receiving area for placing the vehicle door.

[0012] Optionally, it further includes a locking assembly for locking the vehicle door within the accommodating area, wherein the locking assembly includes a driving portion;

[0013] The driving part is located at the lower side of the accommodating area, and a projection range formed by projecting the driving part in a direction perpendicular to the accommodating area is located within the accommodating area.

[0014] Optionally, the locking assembly includes a locking arm transmission-connected to the driving portion, one end of the locking arm is connected to the driving portion, and the other end can extend to the upper portion of the support surface.

[0015] Optionally, the locking arm is divided into a first type locking arm and a second type locking arm, in the jacking position, the height of the first type locking arm is higher than the highest position of the roller assembly, and the height of the second type locking arm is lower than the highest position of the roller assembly;

[0016] The first type of locking arms are both provided at both ends of the first direction;

[0017] A second direction is defined as a direction perpendicular to the first direction in the same plane, and the second type of locking arm is at least arranged at one end of the second direction.

[0018] Optionally, the first type of locking arm has a connecting end connected to the driving portion and a locking end for locking, and a middle portion of the first type of locking arm is located between the connecting end and the locking end;

[0019] The middle portion of the first type of locking arm has a bending portion, which protrudes in a direction away from the supporting surface. The bending portion is used to be hinged to the supporting portion, and the hinged position is located outside the accommodating area in the horizontal direction.

[0020] Optionally, the second type of locking arm includes a chain and a draw hook; one end of the chain is connected to the driving part, and the other end of the chain is provided with the draw hook.

[0021] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0023] Figure 1 This is a structural diagram of a vehicle door assembly welding device according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Side view of;

[0025] Figure 3 It is a structural diagram of the roller assembly;

[0026] Figure 4 yes Figure 1 A top view of

[0027] Figure 5 yes Figure 1 Schematic diagram of part of the structure.

[0028] Reference numerals:

[0029] 11-first support column; 12-support frame; 13-second support column; 131-support arm; 14-support surface; 15-accommodating area; 2-vehicle door; 21-door frame; 22-corrugated plate; 31-power source; 32-power output rod; 33-guide sleeve; 4-roller assembly; 41-connecting frame; 42-roller; 43-fixed shaft; 51-positioning rod; 52-positioning block; 61-first limit member; 71-type one locking arm; 711-connecting end; 712-locking end; 72-driving part; 73-type two locking arm; 731-chain; 732-hook; 733-steering member. DETAILED DESCRIPTION

[0030] The utility model provides a vehicle door 2 assembly welding device. By improving the vehicle door 2 assembly welding device, the vehicle door 2 production line is effectively simplified and the reliability of the vehicle door 2 transmission mode is improved.

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Relational terms such as “first” and “second” are used merely to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0033] Please refer to Figure 1 and Figure 2 , Figure 1This is a structural diagram of a vehicle door assembly welding device according to an embodiment of the present invention; Figure 2 yes Figure 1 Side view of; Figure 3 It is a structural diagram of the roller assembly; Figure 4 yes Figure 1 A top view of Figure 5 yes Figure 1 Schematic diagram of part of the structure.

[0034] A vehicle door 2 assembly welding device is provided, including a jacking component and a support portion provided with a support surface 14. The support portion includes a plurality of first support columns 11 extending vertically and a support frame 12 connected to the top ends of the first support columns 11. The support frame 12 is an approximately rectangular structure to adapt to the door frame 21 of the vehicle door 2 placed horizontally. The upper surface of the support frame 12 serves as the support surface 14, and the support surface 14 contacts the door frame 21 of the vehicle door 2. The middle part of the support frame 12 is a concave cavity, and the middle part of the support frame 12 can also be a hollow structure. This arrangement is used to match the middle corrugated plate 22 of the vehicle door 2, avoid the corrugated plate 22 structure, and form support for the door frame 21 of the vehicle door 2 by the support frame 12 through the support surface 14.

[0035] A roller assembly 4 is mounted at the top of the lifting assembly. The lifting assembly includes a power source 31 and a power output rod 32 in transmission connection with the power source 31. The power source 31 can be a pneumatic cylinder or an oil cylinder, and the roller assembly 4 is mounted at the top of the power output rod 32. The support frame 12 defines a passageway within which the power output rod 32 or the roller assembly 4 can move. The passageway extends through the support surface 14 to form an opening through which the roller assembly 4 can rise to protrude from the support surface 14 or fall back to retract within the support surface 14. Under the action of the lifting assembly, the roller assembly 4 can move vertically upward and downward relative to the support surface 14, switching between a lifting position and a falling position. In the lifting position, the roller assembly 4 is higher than the support surface 14, while in the falling position, it is lower than the support surface 14. In the falling position, the vehicle door 2 is separated from the roller assembly 4 and pressed against the support surface 14. In the lifting position, the vehicle door 2 is separated from the support surface 14 and pressed against the roller assembly 4. In this way, during the assembly and welding of the vehicle door 2, the vehicle door 2 is pressed against the support frame 12. At this time, the jacking assembly is in the lowered position to avoid interference with the vehicle door 2. After the assembly and welding of the vehicle door 2 is completed, the jacking assembly completes the lifting of the vehicle door 2 so as to transport the vehicle door 2 to the next process.

[0036] Each roller assembly 4 includes a connecting frame 41 and a roller 42 rotatably connected to the connecting frame 41. The circumference of the roller 42 contacts the door frame 21. The roller 42 is rotatably connected to the connecting frame 41 via a fixed shaft 43. The axial direction of the fixed shaft 43 is defined as the first direction. The roller 42 rotates around the fixed shaft 43, so the central axis of the fixed shaft 43 is the fixed axis 43 line of the roller 42. The second direction is perpendicular to the first direction, and the vehicle door 2 is transported to the next process along the second direction. After the vehicle door 2 is lifted, a thrust is applied to the vehicle door 2 in the second direction, and the vehicle door 2 is transported to the next process under the action of the roller 42.

[0037] The bottom end of the power output rod 32 is connected to the power source 31, and a connecting portion is provided on the end face of the bottom end of the power output rod 32; the power output rod 32 extends roughly in the vertical direction, with the end close to the ground as the bottom end and the end away from the ground as the top end. Extending roughly in the vertical direction means that the power output rod 32 moves in the vertical direction during the lifting process or there is a certain angle between the direction of its movement and the vertical direction; when the power source 31 is an air cylinder or an oil cylinder, the end of its piston rod is provided with a matching portion that is adapted to the connecting portion.

[0038] In the example shown in the figure, the connecting part includes a connecting plate, which is fixed to one end of the power output rod 32 connected to the power source 31. Two oppositely arranged splints are set at the end of the piston rod. The connecting plate can be inserted between the two splints in the axial direction of the piston rod; and a screw is passed through the splint and the connecting plate and then the connecting rod and the splint are connected by a nut.

[0039] In one specific embodiment, the support portion further includes a second support column 13, which is also arranged vertically, with its top end fixedly connected to the lower surface of the support frame 12, and the power source 31 is fixed to the second support column 13. In this embodiment, the power source 31 provides vertical drive to the power output rod 32, and the power output rod 32 lifts the door frame 21 by abutting against the door frame 21. The position of the second support column 13 can be set according to the size of the power source 31 and the position of the channel. In the example shown in the figure, the second support column 13 is set on the side close to the inner circle of the support frame 12. Of course, it is also possible to provide other support structures instead of the second support column 13, which also falls within the scope of protection of this application.

[0040] By adopting the technical solution of the present application, a roller assembly 4 is integrated at the top of the lifting assembly. After lifting, the vehicle door 2 can be directly pushed into the next process through the roller assembly 4, thereby simplifying the unit layout of the vehicle door 2 production line and improving the transmission reliability of the vehicle door 2. The structure of the roller assembly 4 and the layout of the roller assembly 4 in this embodiment are described in detail below. A plurality of roller assemblies 4 are provided at both ends of the support portion in the first direction. For example, as shown in the figure, three roller assemblies 4 are provided at one end in the first direction, and three roller assemblies 4 are also provided at the other end. The roller assemblies 4 at the same end are at the same height when in the lifting position. By ensuring that the roller assemblies 4 on the same side are at the same height when in the lifting position, the stability of the vehicle door 2 during movement is significantly enhanced, shaking and deviation are reduced, and operational safety is improved.

[0041] Specifically, the jacking assembly includes a first limiter 61, which is used to limit the jacking position; the first limiter 61 is movably connected to the jacking assembly. Specifically, the first limiter 61 is sleeved on the outside of the power output rod 32 and is threadedly connected to the power output rod 32. The power output rod 32 is designed as a threaded rod, and the inside of the first limiter 61 is equipped with a threaded hole that matches the threaded rod. By rotating the power output rod 32, the first limiter 61 can be raised and lowered along the threaded rod. The threaded connection has a self-locking function. When adjusting the height of each roller assembly 4, it is only necessary to adjust the first limiter 61 to the set height through the thread and self-lock it at the set height through the threaded connection. This connection method is relatively simple.

[0042] In addition to threaded connections, sliding connections are also possible. The first stopper 61 is designed to have a slide rail or slider structure, and the power output rod 32 is equipped with a corresponding slide groove or guide rail. The slide rail and slide groove cooperate to allow the first stopper 61 to slide linearly along the power output rod 32. Furthermore, the first stopper 61 can be locked at a set height after reaching a set position.

[0043] By adopting a mechanical limiting method, the roller assemblies 4 on the same side are located at the same height when in the jacking position, which simplifies the structure of the assembly welding device of the vehicle door 2 and reduces the cost.

[0044] Of course, in addition to using mechanical limiting to ensure that the roller assemblies 4 on the same side are at the same height when in the jacking position, it can also be achieved through electronic control. Specifically, a displacement sensor or laser rangefinder can be installed on each roller assembly 4 to monitor the height changes of the roller 42 in real time, and the data can be fed back to the central controller for fine-tuning to ensure that all rollers 42 reach precise height consistency when in the jacking position; before starting the system, all roller assemblies 4 are height-calibrated through the height detection and feedback system to ensure that all roller assemblies 4 are at the same horizontal plane in the initial state. In addition, the jacking assembly can also be provided with a pressure detection device that can obtain the pressure borne by the roller assembly 4 and adjust the height of each roller assembly 4 according to the pressure value borne by each roller assembly 4 on the same side.

[0045] The support portion is provided with a first adapter portion that mates with the first stopper 61. The first stopper 61 is located below the first adapter portion. The first adapter portion is a guide sleeve 33 fixedly connected to the support portion. The guide sleeve 33 extends vertically, and the lower end surface of the guide sleeve 33 is used to stop the first stopper 61. The height of the guide sleeve 33 can be adjusted to uniformly calibrate the height of each roller assembly 4 in the jacking position. Alternatively, the height of the first adapter portion can be adjusted to uniformly calibrate the height of each roller assembly 4 in the jacking position.

[0046] In other embodiments, the assembly welding apparatus for the vehicle door 2 further includes a plurality of positioning devices disposed on the support surface 14, wherein the plurality of positioning devices define a receiving area 15 for placing the vehicle door 2. The positioning devices provided in this embodiment and the receiving area 15 defined by them not only improve the accuracy and efficiency of the vehicle door 2 processing but also enhance the stability and adaptability of the system.

[0047] In the example shown, the positioning device includes first positioning groups disposed at both ends in the first direction. Each first positioning group includes a plurality of positioning rods 51. The positioning rods 51 in the same group are spaced apart, and the two first positioning groups limit the position of the vehicle door 2 in the first direction. The positioning rods 51 protrude vertically from the support surface 14 to a predetermined height and are also higher than the accommodation area 15. Even when the roller assembly 4 is lifting the vehicle door 2 to the raised position, the first positioning groups can still limit the position of the vehicle door 2 in the first direction.

[0048] The positioning device further includes a second positioning group, which is arranged at both ends of the second direction. Each second positioning group includes a plurality of positioning blocks 52. The positioning blocks 52 can be positioned and matched with the lower surface of the vehicle door 2 in the second direction. In this way, the vehicle door 2 can be positioned in the second direction.

[0049] In other embodiments, the door 2 assembly welding device also includes a locking assembly for locking the door 2 in the accommodating area 15, and the locking assembly includes a driving portion 72, which is located on the lower side of the accommodating area 15, and the projection range formed by projecting the driving portion 72 in a direction perpendicular to the accommodating area 15 is located in the accommodating area 15.

[0050] The conventional locking assembly's drive unit 72, or the drive cylinder, is located outside the door 2 assembly welding device, occupying manual operation space. Furthermore, weld spatter lands on the cylinder piston rod, causing blowby and loss of cylinder function. In this embodiment, the drive unit 72 is located below the accommodating area 15 and vertically covered by the accommodating area 15. This prevents the lock drive from occupying manual operation space. Furthermore, when the door 2 is welded, the door 2 is placed within the accommodating area 15, covering the upper portion of the lock drive. This prevents weld spatter from reaching the drive unit 72 during welding, reducing or eliminating wear and tear on the drive unit 72.

[0051] Furthermore, the drive unit 72 is disposed inside the first support column 11. The first support column 11 is a U-shaped steel structure with its opening facing the centerline of the support portion. The centerline of the support portion extends vertically and passes through the center of the support portion in the first direction and the center of the support portion in the second direction. The drive unit 72 is disposed inside the U-shaped steel structure, thereby further shielding the drive unit 72 from the first support column 11 in the horizontal direction.

[0052] In the example shown in the figure, in order to increase the structural strength of the first support column 11, the first support column 11 and the second support column 13 are arranged in sequence in the second direction and offset each other. The second support column 13 is also U-shaped steel, but the opening direction of the second support column 13 faces outward. The first support column 11 is arranged on the outer ring side of the support frame 12, and the second support column 13 is arranged on the inner ring side of the support frame 12. This not only improves the structural strength of the first support column 11 and the second support column 13, but also ensures that the drive unit 72 is not affected by welding spatter. At the same time, the second support column 13 is also arranged on the inner ring side of the support frame 12. In this way, even if the second support column 13 is also provided with a power source 31, the power source 31 is mostly covered by the accommodating area 15, so that the power source 31 is not affected by welding spatter.

[0053] In other embodiments, the locking assembly includes a locking arm in transmission connection with the driving portion 72. One end of the locking arm is connected to the driving portion 72, and the other end can extend above the support surface 14. Driven by the driving portion 72, the locking arm can press the upper surface of the door frame 21 against the support surface 14, thereby locking the vehicle door 2 to the support frame 12.

[0054] In the above embodiment, the locking arms are divided into a first-class locking arm 71 and a second-class locking arm 73. In the raised position, the first-class locking arm 71 is higher than the highest position of the roller assembly 4, while the second-class locking arm 73 is lower than the highest position of the roller assembly 4. The first-class locking arms 71 are both located at both ends in the first direction, while the second-class locking arms 73 are located at at least one end in the second direction. This prevents the first-class locking arms 71 from blocking the door 2 when it is transported to the next workstation.

[0055] The specific structures of the first type locking arm 71 and the second type locking arm 73 in the locking assembly of the present application are described below with two specific implementations.

[0056] One type of locking arm 71 has a V-shaped structure, having a connecting end 711 connected to the driving part 72 and a locking end 712 for locking, and the middle part of the one type of locking arm 71 is located between the connecting end 711 and the locking end 712; the middle part of the one type of locking arm 71 has a bending part, which protrudes in a direction away from the support surface 14, and the bending part is used to be hinged to the support part, and the hinged position is located outside the accommodating area 15 in the horizontal direction.

[0057] The second support column 13 defines an arm channel. A locking arm 71 is partially located within the first support column 11, with its connecting end 711 extending into the interior of the second support column 13 and its locking end 712 extending outward from the second support column 13 and above the support frame 12. The outer wall of the second support column 13 is further provided with two support arms 131, positioned on either side of the arm channel. A bent portion extends through the channel to extend between the two support arms 131, where it is hingedly connected to the two support arms 131. Driven by the drive unit 72, the locking arm 71 rotates, pressing the vehicle door 2 against the support frame 12.

[0058] The second-type locking arm 73 includes a chain 731 and a hook 732. One end of the chain 731 is connected to the drive unit 72, and the other end of the chain 731 is provided with the hook 732. The hook 732 is adapted to engage with the positioning device to press the vehicle door 2 against the support frame 12. To increase the vertical pressure exerted by the hook 732, a deflector 733 is also provided on the support portion. The chain 731 abuts against the deflector 733. The deflector 733 and the hook 732 are vertically opposed in the locked position and are arranged at an angle to the direction of push-out of the drive unit 72, which is adapted to the second-type locking arm 73.

[0059] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vehicle door assembly welding device, characterized in that: The invention comprises a lifting assembly and a support portion provided with a support surface (14); a roller assembly (4) is provided at the top end of the lifting assembly, and a fixed axis of each roller assembly (4) extends along a first direction; the roller assembly (4) can move vertically upward and downward relative to the support surface (14) under the action of the lifting assembly to switch between a lifting position and a falling position; in the lifting position, the height of the roller assembly (4) is higher than the support surface (14), and in the falling position, the height of the roller assembly (4) is lower than the support surface (14).

2. The vehicle door assembly welding device according to claim 1, characterized in that: A plurality of roller assemblies (4) are provided at both ends of the first direction, and the roller assemblies (4) located on the same side are located at the same height when in the jacking position.

3. The vehicle door assembly welding device according to claim 2, characterized in that: The jacking assembly comprises a first position-limiting member (61), and the first position-limiting member (61) is used to limit the jacking position; the first position-limiting member (61) is movably connected to the jacking assembly.

4. The vehicle door assembly welding device according to claim 3, characterized in that: The support portion is provided with a first adapting portion adapted to the first limiting member (61), and the first limiting member (61) is located at the lower side of the first adapting portion.

5. The vehicle door assembly welding device according to claim 4, characterized in that: The lifting assembly includes a power output rod (32), and the roller assembly (4) is arranged at the top end of the power output rod (32); the first limiting member (61) is sleeved on the power output rod (32) and is threadedly connected to the power output rod (32).

6. The vehicle door assembly welding device according to any one of claims 1 to 5, characterized in that: It also includes a plurality of positioning devices arranged on the support surface (14), and the plurality of positioning devices define a receiving area (15) for placing the vehicle door.

7. The vehicle door assembly welding device according to claim 6, characterized in that: Also included is a locking assembly for locking the vehicle door in the accommodating area (15), wherein the locking assembly includes a driving portion (72); The driving portion (72) is located at the lower side of the accommodating area (15), and a projection range formed by projecting the driving portion (72) in a direction perpendicular to the accommodating area (15) is located within the accommodating area (15).

8. The vehicle door assembly welding device according to claim 7, characterized in that: The locking assembly comprises a locking arm that is transmission-connected to the driving portion (72), one end of the locking arm is connected to the driving portion (72), and the other end extends to the upper portion of the supporting surface (14).

9. The vehicle door assembly welding device according to claim 8, characterized in that: The locking arm is divided into a first-class locking arm (71) and a second-class locking arm (73). In the jacking position, the highest position of the first-class locking arm (71) is higher than the highest position of the roller assembly (4), and the highest position of the second-class locking arm (73) is lower than the highest position of the roller assembly (4); The first type of locking arms (71) are both arranged at both ends of the first direction; a second direction is defined as a direction perpendicular to the first direction in the same plane, and the second type of locking arms (73) are at least arranged at one end of the second direction.

10. The vehicle door assembly welding device according to claim 9, characterized in that: The first-class locking arm (71) has a connecting end (711) connected to the driving portion (72) and a locking end (712), and a middle portion of the first-class locking arm (71) is located between the connecting end (711) and the locking end (712); The middle portion of the first type of locking arm (71) has a bent portion, and the bent portion is used to be hinged to the support portion, and the hinged position is located outside the accommodating area (15) in the horizontal direction.

11. The vehicle door assembly welding device according to claim 9, characterized in that: The second type locking arm (73) comprises a chain (731) and a draw hook (732); one end of the chain (731) is connected to the driving part (72), and the other end of the chain (731) is provided with the draw hook (732).

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