Combined tool for coating automobile front cover

By designing a combination of supporting tooling and limit tooling in the automotive front cover coating process, the shortcomings of bolt fastening solutions are solved, and the sharing of pretreatment electrophoresis and topcoat processes is achieved, which improves production efficiency and saves costs.

CN223201948UActive Publication Date: 2025-08-08DFSK MOTOR LTD CHONGQING BRANCH CO
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422388008.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-08-08
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

In the existing automotive front cover coating process, the bolt tightening scheme has problems such as long operation time, waste of manpower and material resources, easy bolt damage and non-universal tooling, resulting in low production efficiency.

Method used

A combined tool for automotive front cover painting is designed. By adding a locking device to the front crossbeam, the supporting tool and limit tool are used to avoid the front cover plate being raised and the sharing of pretreatment electrophoresis and topcoat processes are realized.

Benefits of technology

It improves the production efficiency of coating, saves employee time and workload costs, avoids deformation and interference damage of the front cover plate, and simplifies process operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223201948U_ABST
    Figure CN223201948U_ABST
Patent Text Reader

Abstract

The utility model discloses a combined tool for coating an automobile front cover, which comprises a supporting tool arranged on a front cross beam in the front cover and a limiting tool arranged between a front cover plate and the supporting tool, and the limiting tool is provided with a first limiting part and a second limiting part. The supporting tool comprises a supporting plate arranged on the front side of the front cross beam in the length direction of the automobile body, and the supporting plate is matched with the first limiting part to be used for front cover plate pretreatment and electrophoresis or matched with the second limiting part to be used for front cover plate face painting treatment. According to the utility model, a set of locking device is additionally arranged on the supporting tool on the automobile front cross beam to restrain a limiting tool between the front cross beam and the front cover plate, so that the serious quality defects such as deformation of a front cover and interference damage caused by the fact that the front cover plate tilts and swings back and forth under the influence of buoyancy after entering a pretreatment tank and an electrophoresis tank are avoided; and meanwhile, the combined tool can also realize the sharing of processes such as pre-treatment electrophoresis and finish paint, so that the labor hour of a large amount of coating personnel and the investment of tool cost are saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of automobile painting technology, in particular to a combined tool for painting an automobile front cover. Background Art

[0002] In the prior art, in order to ensure the quality of the pre-treatment electrophoresis of the front cover, different line designs have different front cover locking devices. Most applications use bolts to fasten the front cover so that the opening is fixed and stable, so that it can pass through the pre-treatment electrophoresis line. However, the bolt fastening solution has the following problems: (1) After electrophoresis drying, the electrophoretic paint will stick to the bolts and the tooling holes. Workers cannot remove them by hand and must use power tools. The entire operation takes a long time, wasting manpower and material resources; (2) There is a risk of breaking the bolts when they are reused. After the bolts are broken, the body needs to be processed offline, and the repair cycle is long; (3) The bolts are small in size and are easy to lose during the recycling process. In addition, most line front cover electrophoretic tooling and front cover topcoat tooling are not interchangeable, and tooling switching is required, which also wastes a lot of manpower and material resources.

[0003] Therefore, it is necessary to provide a combined tool for painting the front cover of an automobile to effectively solve the above-mentioned problems. Utility Model Content

[0004] In view of this, the utility model provides a combined tooling for painting the front hood of an automobile. By adding a set of locking devices to the supporting tooling on the front crossbeam of the automobile, a limiting tooling is constrained between the front crossbeam and the front cover plate, so as to prevent the front cover plate from being affected by buoyancy and tilting and swinging back and forth after entering the pre-treatment tank and the electrophoretic tank, thereby causing serious quality defects such as deformation of the front cover and interference scratches. At the same time, the combined tooling can also realize the sharing of pre-treatment electrophoresis and topcoat processes, thereby saving a large amount of man-hours and tooling costs in painting.

[0005] The utility model provides a combined tooling for painting the front hood of an automobile, comprising a supporting tooling arranged on a front cross beam inside the front hood and a limiting tooling arranged between the front hood plate and the supporting tooling, wherein the limiting tooling has a first limiting portion and a second limiting portion, and the supporting tooling comprises a supporting plate arranged on the front side of the front cross beam along the length direction of the vehicle body, and the supporting plate cooperates with the first limiting portion for performing pre-treatment and electrophoresis of the front hood plate or cooperates with the second limiting portion for performing topcoat treatment of the front hood plate.

[0006] Furthermore, the limiting tooling includes a limiting rod, the upper portion of the limiting rod is connected and fixed to the front cover plate, the second limiting portion is arranged at the middle portion of the limiting rod, and the first limiting portion is arranged at the lower portion of the limiting rod.

[0007] Furthermore, the supporting tooling also includes a locking assembly arranged at the bottom of the supporting plate and used to lock the first limiting portion.

[0008] Furthermore, the support plate is L-shaped and includes a vertical plate section and a horizontal plate section. The vertical plate section is fixedly connected to the front side of the front crossbeam, and the horizontal plate section is provided with a first connecting hole that cooperates with the first limiting portion and a second connecting hole that cooperates with the second limiting portion.

[0009] Furthermore, the locking assembly is arranged on the support plate below the first connecting hole and includes a latch and a latch portion for locking the latch.

[0010] Furthermore, the first limiting portion and the second limiting portion are both in an inverted triangular ring structure, and a connecting rod is further provided between the second limiting portion and the limiting rod.

[0011] Furthermore, the first connection hole is located outside the second connection hole and the diameter of the first connection hole is larger than the diameter of the second connection hole.

[0012] Furthermore, a circumvention portion for circumventing the limiting rod is provided at the front end of the support plate transverse plate section.

[0013] The beneficial effects of the present invention are as follows: in the combined tooling for painting the front hood of an automobile provided by the present invention, a set of locking devices is added to the supporting tooling on the front cross beam of the automobile to constrain the limiting tooling between the front cross beam and the front cover plate, thereby preventing the front cover plate from being affected by buoyancy and tilting and swinging back and forth after entering the pre-treatment tank and the electrophoresis tank, thereby causing serious quality defects such as deformation of the front cover and interference scratches; at the same time, the combined tooling can also realize the sharing of pre-treatment electrophoresis and topcoat processes, thereby saving a large amount of man-hours and tooling costs for painting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of the position limiting tooling in the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support tooling in the present utility model;

[0017] The figures are marked as follows: 1-limiting rod; 2-support plate; 3-second limiting part; 4-first limiting part; 5-connecting rod; 6-connecting plate; 7-vertical plate section; 8-horizontal plate section; 9-first connecting hole; 10-second connecting hole; 11-pin; 12-clamping part; 13-avoidance hole. DETAILED DESCRIPTION

[0018] As shown in the figure, the utility model provides a combined tooling for painting the front hood of an automobile, comprising a supporting tooling arranged on the front cross beam inside the front hood and a limiting tooling arranged between the front cover plate and the supporting tooling, the limiting tooling having a first limiting portion 4 and a second limiting portion 3, the supporting tooling comprising a supporting plate 2 arranged on the front side of the front cross beam along the length direction of the vehicle body, the supporting plate 2 cooperates with the first limiting portion 4 for pre-treatment and electrophoresis of the front cover plate or cooperates with the second limiting portion 3 for topcoat treatment of the front cover plate; wherein the front cover plate needs to be fixed at different opening and closing angles during the painting process to ensure the painting quality For example, during the pre-treatment and electrophoresis processes, the front cover needs to be in the maximum lifting state for sufficient coating, while in the processes of glue support, topcoat support, topcoat lifter, etc., only a small angle lifting is required to meet the coating operation; the combined tooling for coating provided in this solution can enable the front cover to be lifted and fixed in different coating processes through the cooperation of the limiting tooling and the supporting tooling, which is mainly reflected in the cooperation between the first limiting part 4 and the second limiting part 3 on the limiting tooling and the support plate 2 respectively, so that the combined tooling can be applied to the entire coating production process, avoiding the risk of bolt loss and screw breakage during recycling in the prior art.

[0019] In this embodiment, the limiting tooling includes a limiting rod 1, the upper portion of the limiting rod 1 is connected and fixed to the front cover plate, the second limiting portion 3 is arranged in the middle of the limiting rod, and the first limiting portion 4 is arranged at the lower portion of the limiting rod; Figure 1 As shown, the upper part of the limit rod 1 is connected and fixed to the connecting plate 6 preset on the inner surface of the front cover plate, wherein the upper part of the limit rod 1 is provided with an annular mounting portion, and the connecting plate 6 is provided with an annular connecting portion cooperating with the annular mounting portion to ensure that when the limit rod 1 is connected to the support plate 2 in multiple states, the upper part is always connected and fixed to the front cover plate; and depending on the lifting state of the front cover plate, the second limit portion 3 for lifting at a small angle is set in the middle part of the limit rod, and the first limit portion 4 for lifting at a large angle is set at the lower part of the limit rod.

[0020] In this embodiment, the support tooling also includes a locking assembly arranged at the bottom of the support plate 2 and used to lock the first limiting portion 4; since the lifting state of the front cover plate needs to be fixed during the pre-treatment and electrophoresis processes, a locking assembly is arranged at the bottom of the support plate 2 and the first limiting portion 4 is locked on the support plate 2 through the locking assembly to ensure that the support plate 2 is fixedly connected to the first limiting portion 4.

[0021] In this embodiment, the support plate 2 is L-shaped and includes a vertical plate segment 7 and a horizontal plate segment 8. The vertical plate segment 7 is fixedly connected to the front side of the front crossbeam, and the horizontal plate segment 8 is provided with a first connecting hole 9 that cooperates with the first limiting portion 4 and a second connecting hole 10 that cooperates with the second limiting portion 3; Figure 2As shown, the support plate 2 is respectively provided with a first connecting hole 9 and a second connecting hole 10 on the horizontal plate section 8, wherein the first connecting hole 9 is mainly used to cooperate with the first limiting portion 4 to perform the pre-treatment and electrophoresis process of the front cover plate, and the second connecting hole 10 is mainly used to cooperate with the second limiting portion 3 to perform the processes of gluing support, topcoat support, topcoat lifting tool and so on of the front cover plate.

[0022] In this embodiment, the lock assembly is arranged on the support plate below the first connection hole 9 and includes a latch and a buckle portion for locking the latch; Figure 2 As shown, the locking assembly mainly uses the combination of a latch 11 and a snap portion 12 to lock the first limiting portion 4, wherein the latch 11 passes through the first limiting portion 4 with an annular structure and is locked with the snap portion 12. Since the front cover plate needs to be fixed only during the pre-treatment and electrophoresis processes, the locking assembly is arranged below the first connecting hole 9.

[0023] In this embodiment, the first limiting portion 4 and the second limiting portion 3 are both inverted triangular ring structures, and a connecting rod 5 is further provided between the second limiting portion 3 and the limiting rod 1; Figure 1 and Figure 2 As shown, the cooperation mode between the first limiting part 4 and the first connecting hole 9 and the cooperation mode between the second limiting part 3 and the second connecting hole 10 are both that the inverted triangle ring structure is inserted into the circular hole for cooperation, and since the second limiting part 3 is located in the middle of the limiting rod 1, it is necessary to set a connecting rod 5 between the second limiting part 3 and the limiting rod 1; wherein the first limiting part 4 and the second limiting part 3 are arranged parallel to each other.

[0024] In this embodiment, the first connecting hole 9 is located outside the second connecting hole 10 and the aperture of the first connecting hole 9 is larger than the aperture of the second connecting hole 10; Figure 2 As shown, since the support plate 2 is provided with a locking assembly below the first connecting hole 9, in order to make the first limiting portion 4 and the locking assembly lock together, it is necessary to increase the aperture of the first connecting hole 9 so that the inverted triangle ring structure of the first limiting portion 4 can enter the first connecting hole 9 as much as possible, so that the pin 11 can pass through the first limiting portion 4 of the inverted triangle ring structure and lock with the snap portion 12.

[0025] In this embodiment, the front end of the support plate transverse section 8 is provided with an avoidance portion 13 for avoiding the limit rod 1; since the second limit portion 3 is located in the middle of the limit rod 1, when the second limit portion 3 is coordinated with the support plate 2, it is necessary to open the avoidance portion 13 at the front end of the transverse section 8 to avoid the rod body of the limit rod 1.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A combined tool for painting the front hood of an automobile, characterized by: It includes a supporting tooling arranged on the front cross beam inside the front cover and a limiting tooling arranged between the front cover plate and the supporting tooling, the limiting tooling has a first limiting part and a second limiting part, and the supporting tooling includes a supporting plate arranged on the front side of the front cross beam along the length direction of the vehicle body, the supporting plate cooperates with the first limiting part for pre-treatment and electrophoresis of the front cover plate or cooperates with the second limiting part for topcoat treatment of the front cover plate.

2. The combined tooling for painting the front hood of an automobile according to claim 1, characterized in that: The limiting tooling includes a limiting rod, the upper portion of the limiting rod is connected and fixed to the front cover plate, the second limiting portion is arranged at the middle portion of the limiting rod, and the first limiting portion is arranged at the lower portion of the limiting rod.

3. The combined tooling for painting the front hood of an automobile according to claim 2, characterized in that: The supporting tool also includes a locking assembly arranged at the bottom of the supporting plate and used to lock the first limiting portion.

4. The combined tooling for painting the front hood of an automobile according to claim 3, characterized in that: The support plate is L-shaped and includes a vertical plate section and a horizontal plate section. The vertical plate section is fixedly connected to the front side of the front crossbeam. The horizontal plate section is provided with a first connecting hole that cooperates with the first limiting portion and a second connecting hole that cooperates with the second limiting portion.

5. The combined tooling for painting the front hood of an automobile according to claim 4, characterized in that: The locking assembly is arranged on the support plate below the first connecting hole and includes a latch and a latch portion for locking the latch.

6. The combined tool for painting the front cover of an automobile according to claim 4, characterized in that: The first limiting portion and the second limiting portion are both in an inverted triangular ring structure, and a connecting rod is further provided between the second limiting portion and the limiting rod.

7. The combined tooling for painting the front hood of an automobile according to claim 4, characterized in that: The first connection hole is located outside the second connection hole and the diameter of the first connection hole is larger than the diameter of the second connection hole.

8. The combined tooling for painting the front hood of an automobile according to claim 4, characterized in that: The front end of the support plate transverse plate section is provided with a avoidance portion for avoiding the limiting rod.