Split type rotary positioning device of car door wrapping die
By using a split-type rotary positioning device with an irregularly shaped base and a rotating arm design, the problems of high processing cost and poor adaptability of existing tooling positioning mechanisms are solved. This achieves efficient and stable positioning and seamless fitting of the inner door panel, improving the production efficiency and quality of automobile remanufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN GOLDEN DRAGON AUTO BODY
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-08
AI Technical Summary
The existing door package mold positioning mechanism uses an integrated irregular-shaped clamping block, which results in a long process flow, high processing cost and poor adaptability, making it difficult to meet the automotive remanufacturing industry's demand for efficient and high-quality production.
A split-type rotary positioning device is adopted, including an irregular base, a transition block and a rotating arm. A predetermined angle is formed by welding to achieve tight contact between the irregular base and the inner panel of the door. The rotating arm is stably rotated by the use of axle pins, which reduces processing costs and improves adaptability.
This achieves seamless bonding of the inner door panels, simplifies the processing flow, improves production efficiency and processing convenience, and reduces manufacturing costs.
Smart Images
Figure CN224208885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a split-type rotary positioning device for closing a car door mold. Background Technology
[0002] In the entire automotive remanufacturing process, the assembly and positioning of the outer and inner door panels is crucial. Specifically in the field of door remanufacturing, achieving precise fitting and positioning of the outer and inner door panels is the core element in ensuring the quality of the door assembly. Therefore, the positioning accuracy of the fitting mold in door remanufacturing is extremely critical, as it directly affects the quality of the door assembly.
[0003] Currently, most tooling positioning mechanisms used in the market to match car door fitting molds adopt one-piece irregular-shaped clamping blocks. These one-piece irregular-shaped clamping blocks are pre-designed according to the shape of the car door inner panel. However, due to their special shape or the presence of certain curves, they need to be completed through complex CNC machining. This results in a long process flow, high processing costs, and the tilt angle of the machined one-piece irregular-shaped clamping block is fixed. It may also be affected by installation errors caused by operators fixing it in the fitting mold, resulting in a situation where it cannot completely fit the curved surface of the matching car door inner panel. Secondly, when the irregular-shaped clamping block is fitted again after the first processing, it may not be able to fit tightly to the car door inner panel. The clamping effect is unstable, which can easily lead to deviations and gaps, resulting in poor adaptability. As a result, it is necessary to redesign the irregular-shaped clamping block, which increases the processing cost and is time-consuming and labor-intensive. The final result is unsatisfactory and cannot meet the current automotive remanufacturing industry's demand for efficient and high-quality production processes.
[0004] In view of the shortcomings of the existing technology, there is an urgent need to optimize and improve the positioning mechanism of the door package mold fitting for automobile remanufacturing in order to improve the overall quality and efficiency of automobile remanufacturing. Utility Model Content
[0005] This utility model provides a split-type rotary positioning device for door panel mold closing. It features a simple structure, easy manufacturing, and low cost, solving the problems of long process flow, high processing cost, and poor adaptability associated with existing tooling positioning mechanisms that use integrated irregularly shaped clamping blocks. The main technical solution adopted is as follows:
[0006] A split-type rotary positioning device for a car door fitting mold, characterized in that it includes: a locking mechanism, which includes a shaped base and a transition block; the shaped base has at least one side plane welded to the transition block, and the other end is provided with a connecting part for fixing to the inner panel of the car door by a fastening structure; the transition block is welded to the side plane of the shaped base to form a predetermined angle; a flipping mechanism, which includes a rotating arm and a mounting block fixed on the fitting mold; one end of the rotating arm is welded to the transition block, and the other end is hinged to the mounting block by a pin; wherein the predetermined angle is set so that when the rotating arm swings outward by rotation and then returns to its original position, the shaped base and the inner panel of the car door can be in close contact with each other.
[0007] Preferably, the flipping mechanism further includes a pivot pin, which passes through the shaft hole of the rotating arm and the hinge hole of the mounting block, so that the rotating arm and the mounting block form a hinge connection and can rotate around the pivot pin.
[0008] Preferably, the mounting block is a U-shaped steel block with a fixing hole on the front for locking with the mold and a hinge hole on the side.
[0009] Preferably, the predetermined angle is 30° to 60°.
[0010] Preferably, the irregular base is formed by cutting a circular rod on one side to create the side plane, thereby forming a "D" shaped structure.
[0011] Preferably, the connecting part is configured as an outer nut welded to the irregular base; the fastening structure includes a bolt and an inner nut located on the inner side of the door panel, wherein the bolt passes through the outer nut, the irregular base, the door panel and the inner nut in sequence for threaded locking, so as to limit and fix the irregular base to the door panel.
[0012] Preferably, the transition block is a cuboid structure, and its sidewall has a connecting end face that is welded to the side plane, and the connecting end face is parallel to the side plane.
[0013] Preferably, the rotating arm has an "L"-shaped structure and is configured as a telescopic rotating arm.
[0014] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:
[0015] (1) This utility model provides a split-type rotary positioning device for door panel mold assembly. It has a simple structure, is easy to manufacture, easy to implement, and has low cost. It solves the problems of long process flow, high processing cost, and poor adaptability caused by the use of an integrated irregular-shaped clamping block in the existing tooling positioning mechanism. This utility model includes a split irregular-shaped base, a transition block, and a rotating arm. The designed irregular-shaped base is preferentially attached to the inner panel of the door. It is pre-positioned and held at a certain angle on the inner panel of the door by applying external force. Then, the transition block is located between the irregular-shaped base and the rotating arm and is directly welded to both. In this way, the three are constrained to a single installation position and connected as one. After welding, the side plane of the transition block and the irregular-shaped base will form a predetermined angle suitable for the repeated processing of the inner panel of the door. Thus, this predetermined angle ensures that no matter how many times the rotating arm rotates outward and then swings back, the irregular-shaped base can always remain tilted against the inner panel of the door, achieving seamless fitting after one-time and resetting. The processing is convenient and the production efficiency is higher.
[0016] (2) The use of a pivot pin connection allows installers to complete the process quickly and efficiently, and the rotation of the rotating arm is more stable and less prone to swaying or tilting.
[0017] (3) Irregular bases are easier to obtain by processing round bars, and single-sided cutting is convenient, reducing manufacturing costs.
[0018] (4) The side wall connection end face of the cuboid transition block is parallel to the side plane of the irregular base, providing a uniform stress surface and reducing the risk of welding deformation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the split rotary positioning device of this utility model installed on the packaging mold according to an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the split-type rotary positioning device according to an embodiment of the present invention;
[0022] Figure 3 This is an exploded view of the split-type rotary positioning device according to an embodiment of the present invention;
[0023] Figure 4 This is a schematic diagram illustrating the structure for positioning and fixing the inner door panel and the split-type rotary positioning device in an embodiment of this utility model. Figure 1;
[0024] Figure 5 for Figure 4 A magnified view of part B shown;
[0025] Figure 6 This is a schematic diagram illustrating the structure for positioning and fixing the inner door panel and the split-type rotary positioning device in an embodiment of this utility model. Figure 2 .
[0026] The annotations in the attached figures are explained as follows:
[0027] 1. Locking mechanism; 11. Irregularly shaped base; 111. Side plane; 112. Connecting part; 12. Transition block;
[0028] 2. Tilting mechanism; 21. Rotating arm; 22. Mounting block; 221. Hinge hole; 222. Fixing hole; 23. Shaft pin; 3. Fastening structure; 31. Bolt; 32. Inner nut; a. Predetermined angle; A1. Enclosure mold; A2. Inner door panel. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0030] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.
[0031] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.
[0032] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.
[0033] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".
[0034] Please see Figures 1 to 6 .
[0035] This embodiment provides a split-type rotary positioning device for door panel mold assembly. It features a simple structure, easy manufacturing, and low cost, solving the problems of long process flow, high processing cost, and poor adaptability associated with existing tooling positioning mechanisms that use integrated irregularly shaped clamping blocks. Figure 1 In this embodiment, the split-type rotary positioning device is fixedly mounted on the packaging mold A1. This positioning device includes a locking mechanism 1 and a flipping mechanism 2; wherein,
[0036] The locking mechanism 1 includes an irregularly shaped base 11 and a transition block 12. The irregularly shaped base 11 is a round bar with at least one side plane 111 cut on one radial side to form a "D" shaped structure. It can also be a square bar or other shapes, but square bars or other shapes take up more space. The axial end face of the irregularly shaped base 11 is provided with a connecting part 112 for fixing to the inner panel A2 of the door through the fastening structure 3. The transition block 12 is a cuboid structure with a connecting end face formed on its side wall that is welded to the side plane 111. The connecting end face is parallel to the side plane 111.
[0037] In this embodiment, see Figure 5 and Figure 6 The irregular base 11 is designed and manufactured according to the curved shape of the inner door panel A2. It is pre-attached to the inner door panel A2 and fixed at a certain tilt angle by applying external force (the operator or robot uses the fastening structure 3 to fix the irregular base 11 to the inner door panel A2 with the connecting part 112). Then, the transition block 12 is set on the side of the irregular base 11 and welded to its side plane 111 to form a predetermined angle α of 30° to 60°. Since the irregular base 11 maintains a certain tilt angle before welding, when it is welded to the transition block 12, it always remains at the same angle relative to the transition block 12.
[0038] The flipping mechanism 2 includes an "L"-shaped rotating arm 21 and a mounting block 22 fixed to the wrapping mold A1. The mounting block 22 is fixedly installed on the side of the wrapping mold A1. One end of the rotating arm 21 is welded and fixed to the transition block 12, and the other end is hinged to the mounting block 22 through a shaft pin 23. In this way, the transition block 12, the rotating arm 21, and the irregular base 11 are welded into one unit, and the irregular base 11 remains stationary at a predetermined angle α. Thus, the predetermined angle α ensures that when the rotating arm 21 rotates outward and then returns to its original position, the irregular base 11 and the inner door panel A2 can still be in close contact without gaps. In other embodiments, the rotating arm 21 can also be a telescopic rotating arm, so that more inner door panels of different sizes can be adapted by the extension and retraction of the rotating arm 21 without the need to replace the rotating arm 21 with a corresponding size.
[0039] In this embodiment, the flipping mechanism 2 further includes a shaft pin 23, which passes through the shaft hole of the rotating arm 21 and the hinge hole 221 of the mounting block 22, so that the rotating arm 21 and the mounting block 22 form a hinge connection and can rotate around the shaft pin 23; the mounting block 22 is a U-shaped steel block, with a fixing hole 222 on the front for locking with the encapsulation mold A1, and the hinge hole 221 on the side.
[0040] In this embodiment, see Figure 5 The connecting part 112 is configured as an outer nut welded to the irregular base 11, which is welded to the axial end face of the irregular base 11; the fastening structure 3 includes a bolt 31 and an inner nut 32 located on the inner side of the door inner panel A2. The bolt 31 passes through the outer nut, the irregular base 11, the door inner panel A2 and the inner nut 32 in sequence to lock them together with threads, so as to limit and fix the irregular base 11 to the door inner panel A2.
[0041] The working principle and usage process of this utility model:
[0042] During installation, please refer to Figure 1 Two separate rotary positioning devices need to be installed on the side of the wrapping mold A1;
[0043] First, fix the mounting block 22; lock the mounting block 22 with the fixing hole 222 on the front of the mounting block 22 using screws;
[0044] Second, install the rotating arm 21; insert the rotating arm 21 into the recessed hole of the mounting block 22, and complete the hinge connection of the rotating arm 21 by passing the shaft pin 23 through the shaft hole of the rotating arm 21 and the hinge hole 221 of the mounting block 22. At this time, the rotating arm 21 can rotate and swing on the mounting block 22.
[0045] Third, fix the irregular base 11; see Figure 5First, align the irregular base 11 with the through hole on the inner panel A2 of the car door, so that the irregular base 11 is tilted and tightly attached to the inner panel A2 of the car door. Then, the outer nut, the body of the irregular base 11, the inner panel A2 of the car door and the inner nut 32 are sequentially threaded through the bolt 31 to lock them together. In this way, the irregular base 11 is fixed and limited on the inner panel A2 of the car door, and the irregular base 11 is tilted at a certain angle on the inner panel A2 of the car door.
[0046] Fourth, connect the rotating arm 21 to the irregular base 11; see [link / reference] Figure 6 The transition block 12 is placed between the rotating arm 21 and the irregular base 11. The connecting end face of the side wall of the transition block 12 and the side plane 111 of the irregular base 11 are first set parallel to each other. Then the connecting end face and the side plane 111 are fitted together tightly. At this time, the side plane 111 forms a predetermined angle α with respect to the connecting end face. Welding is then performed at the position where the connecting end face and the side plane 111 are fitted together. Finally, the other end face of the transition block 12 is welded to the free end of the rotating arm 21 to complete the integral welding of the rotating arm 21, the irregular base 11, and the transition block 12. At this time, the operation of encapsulating mold A1 can begin.
[0047] After the enclosing mold A1 completes one operation, the bolt 31 is loosened from the outer nut and inner nut 32, and the bolt 31 is removed from the inner door panel A2. Then, the rotating arm 21 is swung outward to remove the completed inner door panel A2 from the enclosing mold A1. When processing again, an inner door panel A2 of the same size is placed on the enclosing mold A1, the rotating arm 21 swings back to its original position, and the angle of the irregular base 11 remains unchanged, accurately aligning with the through hole of the inner door panel A2 again, and fitting tightly against the inner door panel A2 without any gaps. Therefore, this utility model has a simple structure, is easy to manufacture, easy to implement, and has low cost, solving the problems of long process flow, high processing cost, and poor adaptability of existing tooling positioning mechanisms that use integrated irregular clamping blocks. This utility model includes a separately configured irregular-shaped base 11, a transition block 12, and a rotating arm 21. The designed irregular-shaped base 11 is preferentially attached to the inner door panel A2. By applying external force, it is pre-positioned and tightly attached to the inner door panel A2 at a certain angle to maintain its position. Then, the transition block 12 is located between the irregular-shaped base 11 and the rotating arm 21 and is directly welded to both. In this way, the three are constrained to a single installation position and connected as a whole. After welding, the transition block 12 and the side plane 111 of the irregular-shaped base 11 will form a predetermined angle α that can adapt to the repeated processing of the inner door panel A2. Thus, the predetermined angle α ensures that no matter how many times the rotating arm 21 rotates outward and then swings back, the irregular-shaped base 11 can always remain tilted and attached to the inner door panel A2, achieving seamless fitting after one-time operation and resetting. This makes processing convenient and increases production efficiency.
[0048] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.
Claims
1. A split-type rotary positioning device for door panel mold closing, characterized in that: include: The locking mechanism includes an irregularly shaped base and a transition block; The irregular base has at least one side plane that is welded to the transition block, and the other end is provided with a connecting part for fixing to the inner panel of the door by a fastening structure; The transition block is welded to the side plane of the irregular base to form a predetermined angle; The flipping mechanism includes a rotating arm and a mounting block fixed on the mold; one end of the rotating arm is welded to the transition block, and the other end is hinged to the mounting block through a pin; wherein, the predetermined angle is set so that when the rotating arm swings outward by rotation and then returns to its original position, the irregular base and the inner panel of the door can be in close contact with each other.
2. The split-type car door mold closing rotation positioning device as described in claim 1, characterized in that: The flipping mechanism also includes a pivot pin, which passes through the shaft hole of the rotating arm and the hinge hole of the mounting block, so that the rotating arm and the mounting block form a hinge connection and can rotate around the pivot pin.
3. The split-type car door mold closing rotation positioning device as described in claim 2, characterized in that: The mounting block is a U-shaped steel block with a fixing hole on the front for locking with the mold and a hinge hole on the side.
4. The split-type car door mold closing rotation positioning device as described in claim 1, characterized in that: The predetermined angle is between 30° and 60°.
5. A split-type car door mold closing rotation positioning device as described in any one of claims 1 to 4, characterized in that: The irregular base is formed by cutting a circular bar on one side to create the side plane, thus forming a "D" shaped structure.
6. The split-type car door mold closing rotation positioning device as described in claim 5, characterized in that: The connecting part is configured as an outer nut welded to the irregular base; the fastening structure includes a bolt and an inner nut located on the inner side of the door panel. The bolt passes through the outer nut, the irregular base, the door panel and the inner nut in sequence for threaded locking to limit and fix the irregular base to the door panel.
7. The split-type car door mold closing rotation positioning device as described in claim 1, characterized in that: The transition block has a cuboid structure, and its sidewalls have a connecting end face that is welded to the side plane. The connecting end face is parallel to the side plane.
8. The split-type car door mold closing rotation positioning device as described in claim 1, characterized in that: The rotating arm has an "L" shaped structure and is configured as a telescopic rotating arm.