CN220926995U - Support tool for automobile back door electrophoretic coating - Google Patents

Abstract

The utility model relates to the technical field of automobile coating manufacturing, in particular to a supporting tool for automobile back door electrophoretic coating, which comprises a connecting rod, a mounting hook, a rotating rod, a first limiting piece and a second limiting piece, wherein the connecting rod is arranged on the connecting rod; the first limiting piece is connected to one end of the connecting rod and one end of the vehicle body rear door frame support and is used for limiting the connecting rod to be inserted into the mounting hole of the vehicle body rear door frame; one end of the mounting hook is connected with the first limiting piece or the connecting rod, and the other end of the mounting hook can be inserted into a mounting hole of a rear door frame of the vehicle body; the second locating part is connected on the one end that connecting rod and back of the body door supported, and be used for restricting the connecting rod and pass the mounting hole on the back of the body door, and the rotary rod can pass the mounting hole on the back of the body door, and the rotary rod rotates with second locating part or connecting rod to be connected. The back door can be effectively and reliably supported, and is easy and convenient to assemble and disassemble with the back door frame or the back door of the vehicle body, accessories such as bolts are not needed to be used for fixing, and assembling and disassembling efficiency of the supporting tool is greatly improved.

Description

Support tool for automobile back door electrophoretic coating

Technical Field

The utility model relates to the technical field of automobile coating manufacturing, in particular to a supporting tool for automobile back door electrophoretic coating.

Background

In the manufacturing process of automobiles, edge folding glue is generally extruded in the buckling joint area before the back door is buckled, so that the integral rigidity of the back door is improved. Due to the reasons of welding workshop sites, fixed asset investment control, auxiliary material cost control and the like, the back door of part of vehicle types can only use the single-component flanging glue cured after high-temperature baking, which is more economical in cost. For the high-end vehicle type with higher requirement on the gap level difference of the whole vehicle, in order to prevent the back door from generating excessive distortion in the coating electrophoresis baking process, the left and right sides of the back door are required to be supported by design brackets so as to balance the stress released by the back door during baking and reduce the distortion of the back door.

The installation of the support that is arranged in the coating electrophoresis baking process to support the back door is complicated all now, for the steadiness that improves the support, all need generally use mounting such as bolt to install the support on back door or back skirtboard, leads to the installation and the great work load of dismantlement. For example, the prior patent (publication number is CN 201889279U) discloses a locking support for pretreatment and electrophoresis of a car coating back door, which comprises a connecting bent pipe, a locking column, a limiting ring, a positioning ring and a locking bolt; the positioning ring is welded on one end of the connecting elbow and the rear apron board support, and the locking bolt is connected with a bolt hole of the rear apron board of the vehicle body through the positioning ring; the limiting ring is welded on one end of the connecting bent pipe and the back door support, the locking column is transversely bent and welded with the inner end surface of the limiting ring, the locking column is inserted into a tooling hole on the back door, and the inner end surface of the limiting ring is in contact with the back door inner skin after installation.

In the use, insert the frock hole on the back of the body door with the locking post that this locking supported, lift up certain height with the back of the body door, fix the holding ring on the back skirtboard through the locking bolt simultaneously, this locking support is nevertheless can be in the coating electrophoresis toast the in-process to the back of the body door carry out firm support, but should locking support need use the bolt fastening when installing with the back skirtboard, lead to installation, dismouting complicacy, it is very inconvenient to use, waste time and energy.

Disclosure of utility model

The utility model aims to provide a support tool for electrophoretic coating of an automobile back door, which is simple and reliable in structural arrangement, does not need accessories such as bolts and the like for installation and fixation, and is easy to disassemble and assemble, so as to solve the problems in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a support tool for the electrophoretic coating of an automobile back door comprises a connecting rod, wherein one end of the connecting rod is supported on a rear door frame of an automobile body, the other end of the connecting rod is supported on the back door, and the support tool also comprises a mounting hook, a rotating rod, a first limiting piece and a second limiting piece; the first limiting piece is connected to one end of the connecting rod and one end of the vehicle body rear door frame support and used for limiting the connecting rod to be inserted into the mounting hole of the vehicle body rear door frame; the mounting hook is bent, one end of the mounting hook is connected with the first limiting piece or the connecting rod, and the other end of the mounting hook can be inserted into a mounting hole of the rear door frame of the vehicle body; the second limiting part is connected to one end of the connecting rod and one end of the back door support, and is used for limiting the connecting rod to penetrate through the mounting hole in the back door, the rotating rod can penetrate through the mounting hole in the back door, and the rotating rod is rotationally connected with the second limiting part or the connecting rod.

According to the technical means, the mounting hook and the first limiting piece can stably limit the connecting rod on the rear door frame of the vehicle body, the mounting hook is obliquely inserted into the mounting hole of the rear door frame of the vehicle body during mounting, and the mounting hook cannot be vertically taken out from the mounting hole of the rear door frame of the vehicle body because the mounting hook is bent, and the first limiting piece can limit the connecting rod to be inserted into the mounting hole of the rear door frame of the vehicle body; the rotary rod and the second limiting part can firmly support the connecting rod on the back door, the second limiting part can limit the connecting rod to penetrate through the mounting hole on the back door, so that the back door can be supported, the rotary rod is rotationally connected to the second limiting part or the connecting rod, when the rotary rod rotates to the position where the axis of the rotary rod coincides with the axis of the second limiting part or the connecting rod, the rotary rod can penetrate through the mounting hole on the back door, when the mounting hole on the back door is abutted to the second limiting part, the rotary rod is rotated, the rotary rod is enabled to vertically downwards, and at the moment, the connecting rod cannot be separated from the mounting hole of the back door. The back door supporting device can effectively and reliably support the back door, is simple and convenient to assemble and disassemble with the back door frame or the back door of the vehicle body, does not need to fix accessories such as bolts, and greatly improves the assembling and disassembling efficiency of the supporting tool.

Further, the first limiting part is arranged to be a limiting seat, the end faces of two opposite sides of the first limiting part are respectively connected with the connecting rod and the mounting hook, and the area of the cross section of the first limiting part is gradually increased along the direction from the mounting hook to the connecting rod.

According to the technical means, the first limiting piece is arranged to be the conical seat body, so that the positioning accuracy can be well controlled, the contact area with the mounting hole of the rear door frame of the vehicle body is reduced, and the area of the electrophoretic paint can be reduced.

Further, the second limiting part is arranged to be a limiting seat, one side end face of the second limiting part is connected with the connecting rod, the other opposite side end face of the second limiting part is connected with the rotating rod in a rotating mode, and the area of the cross section of the second limiting part is gradually increased along the direction from the rotating rod to the connecting rod.

According to the technical means, the second limiting piece is arranged to be the conical base body, so that the positioning accuracy can be well controlled, the contact area with the mounting hole of the back door is reduced, and the area of the electrophoretic paint can be reduced.

Further, the rotating rod is hinged with the second limiting piece through a connecting structure.

According to the technical means, the rotating rod is hinged with the second limiting part through the connecting structure, the connecting mode is easy to realize, the rotating rod is convenient to rotate, and then the assembly of the support tool and the back door is convenient.

Further, the connecting rod comprises a first connecting part used for supporting the rear door frame of the vehicle body, a second connecting part used for supporting the back door and a third connecting part connected between the first connecting part and the second connecting part; the axis of the first connecting part is parallel to the axis of the second connecting part.

According to the technical means, the axis of the first connecting part is parallel to the axis of the second connecting part, so that the connecting rod can be conveniently inserted into the mounting hole of the rear door frame of the vehicle body and the mounting hole of the back door in the mounting process, and the mounting efficiency of the supporting tool is improved; on the other hand can accomplish the installation back at support frock and automobile body, support the frock and can carry out firm cooperation with the mounting hole of door frame behind the automobile body and the mounting hole on the back of the body door, and then improve the support steadiness to the back of the body door.

Further, the connection structure comprises a connection rotating piece, a connection fixing piece and a shaft pin, wherein the connection rotating piece is fixedly connected to the end part of the rotating rod, the connection fixing piece is fixedly connected to the end face of the second limiting piece, and the connection rotating piece is rotatably connected to the connection fixing piece through the shaft pin.

According to the technical means, the rotary rod and the second limiting piece can be connected in a rotating way through the cooperation of the connecting rotary piece, the connecting fixing piece and the shaft pin, and the structure is simple in arrangement, stable and convenient to rotate.

Further, the axis of the third connecting portion is perpendicular to the axis of the first connecting portion or the axis of the second connecting portion.

According to the technical means, the mounting hole of the door frame behind the automobile body and the mounting hole of the back door can be conveniently and efficiently connected with the connecting rod in the mounting process, and the supporting stability of the whole connecting rod to the back door can be improved.

Further, a reinforcing rod is connected between the first connecting part and the third connecting part or/and between the second connecting part and the third connecting part.

According to the technical means, the reinforcing rod can play a reinforcing role for the connecting rod, and then the whole supporting tool is not deformed after the connecting rod is used for a long time.

Further, a transition rod is connected between the connecting fixing piece and the second limiting piece, and the area of the cross section of the transition rod is gradually reduced along the direction from the second limiting piece to the connecting fixing piece.

According to the technical means, when the rotary rod can rotate to the position where the axis of the rotary rod coincides with the axis of the second limiting piece through the arrangement of the transition rod, the rotary rod and the connecting structure can smoothly pass through the mounting hole on the back door, and then the mounting hole on the back door can smoothly move to the second limiting piece to carry out limiting fit.

Further, the length of the connection rotating member is greater than the aperture of the mounting hole of the back door.

According to the technical means, when the rotary rod is rotated vertically downwards, the length of the connecting rotary piece is larger than the aperture size of the mounting hole on the back door, and the connecting rotary piece cannot be limited on one side of the mounting hole of the back door through the mounting hole, so that the limiting effect of the supporting tool on the back door can be improved.

The utility model has the beneficial effects that:

(1) The back door is simple and reliable in overall structure, the connecting rod can be stably limited on the back door frame of the vehicle body through the mounting hook and the first limiting piece, and can be stably supported on the back door through the rotating rod and the second limiting piece, so that the back door can be effectively and reliably supported, and is easy and convenient to assemble and disassemble with the back door frame or the back door of the vehicle body, accessories such as bolts are not required to be used for fixing, and the assembling and disassembling efficiency of the supporting tool is greatly improved;

(2) The utility model has no risk of collision and scratch in the mounting and dismounting processes, the mounting areas of the supporting tool are all covered areas of the whole vehicle, and other secondary defects are not generated, namely, the imprinting generated by the supporting tool on the vehicle body does not need any additional treatment, and the vehicle body can be circulated to the subsequent process;

(3) The connecting rod can be conveniently inserted into the mounting hole of the rear door frame of the vehicle body and the mounting hole of the back door in the mounting process, so that the mounting efficiency is improved, and after the supporting tool and the vehicle body are mounted, the supporting tool can be stably matched with the mounting hole of the rear door frame of the vehicle body and the mounting hole on the back door, so that the supporting and stabilizing effect on the back door is improved.

Drawings

FIG. 1 is a schematic structural view of a support tooling for automotive back door electrocoating according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic diagram of the structure of the connecting rod, the first limiting member and the second limiting member according to the present utility model;

FIG. 4 is a schematic view of the support tooling and body mounting locations for automotive back door electrocoating of the present utility model;

FIG. 5 is a schematic structural view of the installation process of the support tool for the back door electrophoretic coating of the automobile;

Fig. 6 is a schematic structural view of the support tool for the electrophoretic coating of the back door of the automobile after installation.

Wherein, 1-connecting rod; 11-a first connection; 12-a second connection; 13-a third connection; 2-mounting hooks; 3-rotating the rod; 4-a first limiting piece; 5-a second limiting piece; a 6-connection structure; 61-connecting the rotating member; 62-connecting the fixing piece; 63-axle pin; 7-reinforcing bars; 8-a transition rod; 101-a rear door frame of a vehicle body; 102-backdoor; 103-bumper mounting holes.

Detailed Description

Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

The embodiment provides a support frock for car back door electrophoresis application, this support frock is used for supporting the back door in electrophoresis application toast the in-process to balanced back door stress that releases, reduce back door's distortion when toasting. The installation of the support for supporting the back door in the existing coating electrophoresis baking process is complex, in order to improve the stability of support, the support is usually required to be installed on the back door or the rear apron board by using fixing pieces such as bolts, so that the workload of installation and disassembly is large, and the use is inconvenient.

In order to solve the problem, as shown in fig. 1-3, the support tool for the back door electrophoretic coating of the automobile in the embodiment comprises a connecting rod 1, a mounting hook 2, a rotating rod 3, a first limiting piece 4 and a second limiting piece 5, wherein one end of the connecting rod 1 is supported on a back door frame 101 of the automobile body, and the other end of the connecting rod 1 is supported on a back door 102.

As shown in fig. 1, a first limiting member 4 is connected to one end of the connecting rod 1 supported by the rear door frame 101 of the vehicle body, and the first limiting member 4 is used for limiting the connecting rod 1 to extend into a mounting hole of the rear door frame 101 of the vehicle body, in this embodiment, the mounting hole of the rear door frame 101 of the vehicle body is a bumper mounting hole 103 on the rear door frame 101 of the vehicle body. In this embodiment, the first limiting member 4 is set as a limiting seat, one side end surface of the first limiting member 4 is coaxially connected to the end of the connecting rod 1, and the opposite side end surface of the first limiting member 4 is connected with the mounting hook 2, where the mounting hook 2 is in a bent shape.

One end of the mounting hook 2 is coaxially connected with the first limiting part 4, the other end of the mounting hook 2 can extend into the bumper mounting hole 103 of the rear door frame 101 of the vehicle body, and specifically, when the mounting hook 2 is mounted with the rear door frame 101 of the vehicle body, the mounting hook 2 is obliquely inserted into the bumper mounting hole 103 of the rear door frame 101 of the vehicle body, and the position of the connecting rod 1 is adjusted, so that the other end of the connecting rod 1 faces the mounting hole of the back door 102, and at the moment, the mounting hook 2 cannot vertically deviate from the bumper mounting hole 103 of the rear door frame 101 of the vehicle body due to the bent arrangement of the mounting hook 2.

In this embodiment, the mounting hook 2 is in an arc bending rod-shaped structure, the bending radian of the mounting hook 2 in this embodiment is 90 °, and the bending radian of the mounting hook 2 may be set to other radians, so long as the mounting hook 2 is obliquely inserted into the bumper mounting hole 103 of the rear door frame 101 of the vehicle body, and the mounting hook 2 cannot be vertically separated from the bumper mounting hole 103.

In this embodiment, the area of the cross section of the first limiting member 4 gradually increases along the direction from the mounting hook 2 to the connecting rod 1, the diameter of the end surface of the first limiting member 4 connected with the connecting rod 1 is larger than the diameter of the end of the connecting rod 1, and the diameter of the end surface of the first limiting member 4 connected with the mounting hook 2 is the same as the diameter of the end of the mounting hook 2. In this embodiment, the first limiting part 4 is provided as a conical limiting seat, so that the positioning accuracy can be controlled well, the contact area with the bumper mounting hole 103 of the rear door frame 101 of the vehicle body can be reduced, and the area of the electrophoretic paint can be reduced.

As shown in fig. 1, a second limiting member 5 is connected to one end supported by the connecting rod 1 and the back door 102, the second limiting member 5 is used for limiting the connecting rod 1 to pass through a mounting hole on the back door 102, in this embodiment, the mounting hole on the back door 102 is a through hole, in this embodiment, the second limiting member 5 is set as a limiting seat, one side end surface of the second limiting member 5 is coaxially connected to the end of the connecting rod 1, the opposite other side end surface of the second limiting member 5 is rotationally connected with a rotating rod 3, the rotating rod 3 can pass through the mounting hole on the back door 102, when the rotating rod 3 passes through the mounting hole of the back door 102, and the second limiting member 5 is abutted to the mounting hole on the back door 102, the rotating rod 3 is rotated, so that the rotating rod 3 is vertically downward, the connecting rod 1 can be stably limited on the back door 102 and can not deviate from the back door 102, and further the back door 102 can be stably supported.

In this embodiment, the rotating rod 3 is configured as a straight rod structure, the rotating rod 3 is hinged to the second limiting member 5 through a connecting structure 6, specifically, as shown in fig. 2, the connecting structure 6 includes a connecting rotating member 61, a connecting fixing member 62 and a shaft pin 63, where the connecting rotating member 61 is in a rod structure, an end portion of the connecting rotating member 61 is coaxially and fixedly connected to an end face of the rotating rod 3, and in this embodiment, a diameter of a cross section of the connecting rotating member 61 is smaller than a diameter of a cross section of the rotating rod 3.

The connecting and fixing pieces 62 are fixedly connected to the end face of the second limiting piece 5, the connecting and rotating piece 61 is rotatably connected to the connecting and fixing pieces 62 through the shaft pin 63, two connecting and fixing pieces 62 are arranged on two sides of the connecting and rotating piece 61 in the embodiment, the length of the connecting and rotating piece 61 is matched with that of the connecting and fixing piece 62, the connecting and rotating piece 61 can normally rotate around the central axis of the shaft pin 63, and the connecting and rotating piece 61 can rotate to a position where the axis of the connecting and rotating piece 61 coincides with the axis of the second limiting piece 5.

As another embodiment, the connection fixing member 62 may be provided in a cylindrical shape, and one end of the connection fixing member 62 facing the connection rotating member 61 is provided with a notch, and the connection rotating member 61 may rotate in the notch.

In this embodiment, the length of the connection rotating member 61 is greater than the aperture of the mounting hole on the back door 102, when the rotating rod 3 rotates vertically downwards, the connection rotating member 61 cannot be limited on one side of the mounting hole of the back door 102 through the mounting hole of the back door 102 due to the fact that the length of the connection rotating member 61 is greater than the aperture size of the mounting hole on the back door 102, and therefore the limiting effect of the support fixture on the back door 102 can be improved.

In this embodiment, the connection fixing member 62 is connected with the second limiting member 5 through the transition rod 8, the transition rod 8 is of a reducing rod-shaped structure, specifically, the area of the cross section of the transition rod 8 gradually decreases from the second limiting member 5 to the direction of the connection fixing member 62, the diameter of the largest cross section of the transition rod 8 is the same as the diameter of the end face of the second limiting member 5, which faces the transition rod 8, the outer side face of the connection fixing member 62 is an arc-shaped face, and the diameter of the smallest cross section of the transition rod 8 is the same as the diameter of the circle where the bottom face of the connection fixing member 62 is located.

When the rotary rod 3 can be rotated to the position where the axis of the rotary rod is coincident with the axis of the second limiting piece 5 through the arrangement of the transition rod 8, the rotary rod 3 and the connecting structure 6 can smoothly pass through the mounting hole on the back door 102, and the mounting hole on the back door 102 can be more stably transited to the second limiting piece 5 for limiting fit.

In this embodiment, the area of the cross section of the second limiting part 5 gradually increases along the direction from the rotating rod 3 to the connecting rod 1, the area of the end surface of the second limiting part 5 connected with the connecting rod 1 is larger than the area of the end part of the connecting rod 1, the second limiting part 5 is arranged as a conical limiting seat, the positioning precision can be controlled well, the contact area with the mounting hole of the back door 102 is reduced, and then the area of the electrophoretic paint can be reduced.

The shape of the connecting rod 1 can be designed according to the car body which is actually required to be supported, so that the supporting tool can be conveniently matched and connected with the mounting hole of the car body rear door frame 101 and the mounting hole of the back door 102. Specifically, as shown in fig. 3, the connecting rod 1 in this embodiment includes a first connecting portion 11, a second connecting portion 12 and a third connecting portion 13, the first connecting portion 11 is supported by the rear door frame 101 of the vehicle body, the second connecting portion 12 is supported by the back door 102, the third connecting portion 13 is connected between the first connecting portion 11 and the second connecting portion 12, and in this embodiment, the first connecting portion 11, the second connecting portion 12 and the third connecting portion 13 are integrally formed.

In this embodiment, the axis of the first connecting portion 11 is parallel to the axis of the second connecting portion 12, the axis of the third connecting portion 13 is perpendicular to the axis of the first connecting portion 11 or the axis of the second connecting portion 12, one end of the third connecting portion 13 is in arc transition connection with the first connecting portion 11, and the other end of the third connecting portion 13 is in arc transition connection with the second connecting portion 12.

In this embodiment, the connecting rod 1 is configured to be of a twice vertical bending structure, which can be convenient to be matched and butted with the mounting hole of the door frame 101 and the mounting hole of the back door 102 in the mounting process efficiently and rapidly, and when the back door 102 is supported, the axis of the first connecting portion 11 is overlapped with the axis of the mounting hole of the door frame 101 as much as possible, and the axis of the second connecting portion 12 is overlapped with the axis of the mounting hole of the back door 102 as much as possible, so as to improve the stability of supporting the back door 102 by the connecting rod 1.

As shown in fig. 1 and 3, a reinforcing rod 7 is connected between the first connecting portion 11 and the third connecting portion 13 or/and between the second connecting portion 12 and the third connecting portion 13, in this embodiment, the reinforcing rod 7 is connected between the first connecting portion 11 and the third connecting portion 13, in this embodiment, the reinforcing rod 7 is a round steel rod member, so as to improve the reinforcing effect on the connecting rod 1, and the reinforcing rod 7 can strengthen the connecting rod 1, so that the connecting rod 1 is not deformed after long-term use, and further the use effect of the whole supporting tool is ensured.

In the embodiment, carbon steel can be selected as materials of the structures such as the connecting rod 1 and the rotating rod 3, so that dead weight can be effectively reduced, the maximum light weight of the supporting tool is realized, the supporting tool is light and convenient to use, and meanwhile, the supporting tool is convenient to transport.

In this embodiment, the support tool is connected by adopting a welding structure, so as to improve the strength and stability of the overall structure, specifically, in this embodiment, one end of the connecting rod 1 is coaxially welded with the first limiting part 4, the other end of the connecting rod 1 is coaxially welded with the second limiting part 5, two ends of the reinforcing rod 7 are respectively welded with the first connecting part 11 and the third connecting part 13, one end of the transition rod 8 is coaxially welded with the second limiting part 5, the other end of the transition rod 8 is welded with the connecting fixing part 62, the connecting rotating part 61 is coaxially welded with the rotating rod 3, after all parts of the support tool are structurally welded and connected, the connecting points are polished smoothly, the smoothness and the flatness of the surface of the overall support tool are ensured, and the appearance quality is improved.

As shown in fig. 4-6, if the support tool in this embodiment needs to be installed on a vehicle body, after the back door 102 is opened and lifted by a proper angle, the installation hook 2 is firstly inserted into the corresponding installation hole on the rear door frame 101 of the vehicle body in an inclined manner, the position of the connection rod 1 is adjusted, so that the installation hook 2 cannot be separated from the corresponding installation hole on the rear door frame 101 of the vehicle body, then the rotation rod 3 is rotated to a position where the axis of the rotation rod 3 coincides with the axis of the second limiting part 5, at this moment, the rotation rod 3 is coaxial with the second connecting part 12 of the connection rod 1, then the back door 102 is slowly put down, the rotation rod 3 passes through the installation hole on the back door 102, the back door 102 is continuously and slowly put down along the transition rod 8 to the position of the second limiting part 5 under the action of gravity, and is in abutting joint with the second limiting part 5, and the rotation rod 3 is rotated, so that the rotation rod 3 is in a vertically downward state, and the installation can be completed. The left side and the right side of the back door 102 are respectively provided with a supporting tool, and the two supporting tools jointly support the back door 102.

In this embodiment, the disassembly process of the support tool is opposite to the installation process, the rotary rod 3 can be rotated to one side of the connecting rod 1 after disassembly and is stored in the feed box, the feed box is circulated to the installation station for recycling, and the rotary rod 3 can be rotated to one side of the connecting rod 1, so that the whole length of the support tool is reduced, the space is greatly saved, and the circulation of the support tool can be realized by using the small-sized feed box.

The whole structure of the support tool in the embodiment is simple in arrangement, the strength is high, the stability is good, the connecting rod 1 can be stably limited on the rear door frame 101 of the vehicle body through the mounting hook 2 and the first limiting piece 4, the connecting rod 1 can be stably supported on the back door 102 through the rotating rod 3 and the second limiting piece 5, the back door 102 can be effectively and reliably supported, excessive distortion generated by the back door in the coating electrophoresis baking process is prevented, and the support tool is convenient and quick to assemble and disassemble with the rear door frame 101 of the vehicle body or the back door 102 without fixing accessories such as bolts, so that the assembling and disassembling efficiency of the support tool is greatly improved.

In addition, the support tool in the embodiment has no risk of collision and scratch in the mounting and dismounting process, and the mounting areas of the support tool are all covered areas of the whole vehicle, so that other secondary defects are not generated. If the mounting hole of the back door 102 in this embodiment is provided, the inner side can shield the print generated by the transition rod 8 through the bolt flange surface, the outer side can shield the print generated by the rotating rod 3 through the mounting decoration, that is, the print generated by the supporting fixture on the vehicle body does not need any additional treatment, and the vehicle body can flow to the subsequent process.

The electrophoresis of the car body must be fully immersed in the tank liquor, the car body supporting the back door through the supporting tool in this embodiment can be effectively applied to 30 ° or 45 ° oblique in and out production line body, 30 ° or 45 ° oblique in and out production line body is the trapezoid tank body, including oblique in tank body conveying section, oblique out tank body conveying section and lie in oblique in tank body conveying section and oblique out tank body conveying section between horizontal conveying section, 30 ° or 45 ° refer to oblique in tank body conveying section or oblique out tank body conveying section and the angle of the reverse extension line of horizontal conveying section, when the car body passes through 30 ° or 45 ° oblique in and out production line body, connecting rod 1 can not drop from back door 102 under the spacing of rotary rod 3 and connecting rotating member 61, under the direction of connecting fixed part 62 and transition rod 8 and the gravity effect of back door 102, the mounting hole of back door 102 of car body can keep the laminating state with second limiting member 5 all the time in the horizontal conveying section of tank body and oblique in the time, make the supporting tool form the back door 102 and effectively release the distortion in the process of back door 102.

The above embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model.

Claims (10)

1. A support frock for car back of body door electrophoresis application, includes connecting rod (1), and the one end of connecting rod (1) is supported on door frame (101) behind the automobile body, and the other end supports on back of body door (102), its characterized in that: the device also comprises a mounting hook (2), a rotating rod (3), a first limiting piece (4) and a second limiting piece (5); the first limiting piece (4) is connected to one end of the connecting rod (1) supported by the rear door frame (101) of the vehicle body and used for limiting the connecting rod (1) to be inserted into a mounting hole of the rear door frame (101) of the vehicle body; the mounting hook (2) is bent, one end of the mounting hook (2) is connected with the first limiting piece (4) or the connecting rod (1), and the other end of the mounting hook can be inserted into a mounting hole of the rear door frame (101) of the vehicle body; the second limiting part (5) is connected to one end of the connecting rod (1) supported by the back door (102), the second limiting part is used for limiting the connecting rod (1) to penetrate through a mounting hole in the back door (102), the rotating rod (3) can penetrate through the mounting hole in the back door (102), and the rotating rod (3) is rotationally connected with the second limiting part (5) or the connecting rod (1).

2. The support tooling for automotive back door electrophoretic coating according to claim 1, wherein: the first limiting part (4) is arranged to be a limiting seat, the end faces of two opposite sides of the first limiting part (4) are respectively connected with the connecting rod (1) and the mounting hook (2), and the area of the cross section of the first limiting part (4) is gradually increased along the direction of the mounting hook (2) towards the connecting rod (1).

3. The support tooling for automotive back door electrophoretic coating according to claim 1, wherein: the second limiting part (5) is arranged to be a limiting seat, one side end face of the second limiting part (5) is connected with the connecting rod (1), the other opposite side end face of the second limiting part (5) is rotationally connected with the rotating rod (3), and the area of the cross section of the second limiting part (5) is gradually increased along the rotating rod (3) to the direction of the connecting rod (1).

4. A support tooling for automotive back door electrocoating as defined in claim 3, characterized in that: the rotating rod (3) is hinged with the second limiting piece (5) through a connecting structure (6).

5. The support tooling for automotive back door electrocoating of any one of claims 1-4, characterized in that: the connecting rod (1) comprises a first connecting part (11) used for supporting the rear door frame (101) of the vehicle body, a second connecting part (12) used for supporting the back door (102) and a third connecting part (13) connected between the first connecting part (11) and the second connecting part (12); the axis of the first connecting part (11) is parallel to the axis of the second connecting part (12).

6. The support tooling for automotive back door electrophoretic coating of claim 4, wherein: the connecting structure (6) comprises a connecting rotary piece (61), a connecting fixing piece (62) and a shaft pin (63), wherein the connecting rotary piece (61) is fixedly connected to the end part of the rotary rod (3), the connecting fixing piece (62) is fixedly connected to the end face of the second limiting piece (5), and the connecting rotary piece (61) is rotationally connected to the connecting fixing piece (62) through the shaft pin (63).

7. The support tooling for automotive back door electrophoretic coating of claim 5, wherein: the axis of the third connecting part (13) is perpendicular to the axis of the first connecting part (11) or the second connecting part (12).

8. The support tooling for automotive back door electrophoretic coating of claim 5, wherein: a reinforcing rod (7) is connected between the first connecting part (11) and the third connecting part (13) or/and between the second connecting part (12) and the third connecting part (13).

9. The support tooling for automotive back door electrophoretic coating of claim 6, wherein: the connecting fixing piece (62) and the second limiting piece (5) are connected with a transition rod (8), and the area of the cross section of the transition rod (8) gradually decreases along the direction from the second limiting piece (5) to the connecting fixing piece (62).

10. The support tooling for automotive back door electrophoretic coating of claim 6, wherein: the length of the connecting rotating piece (61) is larger than the aperture of the mounting hole of the back door (102).