Stamping and bending device for vehicle door hinge
By designing a combined structure of upper mold cavity, lower mold cavity and side mold cavity, the problem of existing door hinge bending devices requiring two operations is solved, realizing single-step forming of door hinges and improving the reliability and flexibility of the device.
Patent Information
- Application Number
- CN202423285896.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing door hinge bending devices require two operations to complete the forming process, which is cumbersome and inflexible.
A door hinge stamping and bending device was designed, which adopts a combination structure of upper die cavity, lower die cavity and side die cavity to realize the bending and forming of door hinge in one step.
This technology enables the door hinges to be formed in a single process, improving the reliability and flexibility of the device.
Smart Images

Figure CN223603205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping device technology, and in particular to a stamping and bending device for a car door hinge. Background Technology
[0002] Car door hinges (such as) Figure 4 As shown in the image, a hinge (also known as a door hinge) is typically installed on the front and rear doors of a vehicle. It is actually a mechanical device used to connect two solid parts and allow them to rotate relative to each other. This hinge can be made of movable components or foldable materials, and its key function is to provide a cushion when the door or tailgate closes, effectively reducing the noise of collisions with other parts, thereby improving ride comfort.
[0003] Currently, car door hinges on the market require bending devices during the manufacturing process. Existing car door hinges have one end bent at a right angle and the other end curved. Existing bending devices cannot achieve this in one step and usually require two bending devices to process the car door hinge, which is very troublesome. Utility Model Content
[0004] This utility model proposes a door hinge stamping and bending device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A door hinge stamping and bending device includes a base plate, on which upright plates are fixedly mounted. An mounting block is positioned between two upright plates. A support plate is fixedly mounted on the top of the two upright plates. A through hole is formed between the middle of the support plate and the mounting block, and a spring is fixedly mounted within the through hole. Baffles are fixedly mounted on the front and rear sides of the top surface of the support plate. Side plates and side mold cavities are fixedly mounted on the left and right sides of the top surface of the support plate, respectively. A guide plate is provided on the side plate, and a lower mold cavity is mounted on the side plate via the guide plate. The bottom of the lower mold cavity is fixedly connected to the spring. Guide rods are fixedly mounted on the outer sides of both the side plates and the side mold cavity. An upper mold cavity is provided above the lower mold cavity. A top plate is fixedly mounted on the top surface of the upper mold cavity. Guide sleeves are fixedly mounted on both sides of the top plate. The guide sleeves on the top plate cooperate with the guide rods on the support plate, and the upper mold cavity cooperates with the lower mold cavity.
[0007] A further preferred embodiment of this utility model is as follows: a guide groove is provided on the right side of the lower mold cavity, and the guide plate of the side plate is slidably installed in the guide groove of the lower mold cavity.
[0008] A further preferred embodiment of this utility model is that both the upper and lower mold cavities are provided with main bending cavities, and the main bending cavities of the upper mold cavity and the lower mold cavity are matched.
[0009] The utility model further further optimizes scheme: the outer wall on the right side of upper die cavity and left end of side die cavity all are equipped with vice bending cavity, the vice bending cavity on the right side of upper die cavity and left end vice bending cavity of side die cavity are matched.
[0010] The utility model has the advantages that:
[0011] The utility model discloses a upper die cavity, lower die cavity and side die cavity can stamping bending forming to the door hinge once, solve the problem that the existing device cannot form the door hinge once, increase the reliability and flexibility of device. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the front view structural schematic drawing of the utility model;
[0013] Figure 2 It is the three-dimensional structure schematic drawing of the utility model;
[0014] Figure 3 It is the front view sectional structure schematic drawing of the utility model;
[0015] Figure 4 It is the three-dimensional structure schematic drawing of the hinge;
[0016] In the drawing: 1 bottom plate, 2 vertical board, 3 mounting block, 4 support plate, 5 side plate, 6 baffle, 7 side die cavity, 8 lower die cavity, 9 upper die cavity, 10 top plate, 11 guide rod, 12 guide sleeve, 13 spring, 14 guide plate, 15 guide slot. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0018] According to Figures 1-4As shown, a kind of vehicle door hinge stamping bending device, including bottom plate 1, bottom plate 1 is fixedly installed with vertical plate 2, installation block 3 is arranged between two vertical plate 2, the top of two vertical plate 2 is fixedly installed with support plate 4, the middle portion of support plate 4 is opened with through hole between installation block 3, spring 13 is fixedly installed in through hole, the front and rear sides of support plate 4 top surface are all fixedly installed with baffle 6, the left and right sides of support plate 4 top surface are respectively fixedly installed with side plate 5 and side die cavity 7, guiding plate 14 is arranged on side plate 5, lower die cavity 8 is installed in side plate 5 by guiding plate 14, the bottom of lower die cavity 8 is fixedly connected with spring 13, the outer side of side plate 5 and side die cavity 7 is all fixedly installed with guide rod 11, upper die cavity 9 is arranged above lower die cavity 8, the top surface of upper die cavity 9 is fixedly installed with top plate 10, the both sides of top plate 10 are all fixedly installed with guide sleeve 12, guide sleeve 12 on top plate 10 is matched with guide rod 11 on support plate 4, upper die cavity 9 is matched with lower die cavity 8.
[0019] The right side of lower die cavity 8 is provided with guide groove 15, and the guiding plate 14 of the side plate 5 is slidingly installed in the guide groove 15 of the lower die cavity 8.
[0020] The upper die cavity 9 and the lower die cavity 8 are both provided with a main bending cavity, and the main bending cavity of the upper die cavity 9 is matched with the main bending cavity of the lower die cavity 8.
[0021] The outer wall on the right side of the upper die cavity 9 and the left end of the side die cavity 7 are both provided with a secondary bending cavity, and the secondary bending cavity on the outer wall on the right side of the upper die cavity 9 is matched with the secondary bending cavity on the left end of the side die cavity 7.
[0022] Working principle: when the vehicle door hinge stamping bending is needed, the workpiece to be stamped and bent is placed between the upper die cavity 9 and the lower die cavity 8, the top plate 10 is pressed down, the upper die cavity 9 and the lower die cavity 8 are pressed down, the side plate 5 limits the lower die cavity 8, the spring 13 is contracted, until the side die cavity 7 bends one end of the vehicle door hinge, the work is completed.
[0023] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered within the protection scope of the present application.
Claims
1. A press-bending device for a vehicle door hinge, characterized by: The utility model relates to a double -sided bending die, including bottom plate (1), bottom plate (1) is fixedly installed with vertical board (2), be provided with mounting block (3) between two vertical boards (2), the top of two vertical boards (2) is fixedly installed with support plate (4), and the middle part of support plate (4) is opened with through -hole between mounting block (3), fixedly installed with spring (13) in through -hole, the front and rear sides of support plate (4) top surface all are fixedly installed with baffle (6), and the left and right sides of support plate (4) top surface are fixedly installed with side plate (5) and side die cavity (7) respectively, be provided with guide plate (14) on side plate (5), and side plate (5) is installed with lower die cavity (8) through guide plate (14), and the bottom of lower die cavity (8) is fixedly connected with spring (13), and the outside of side plate (5) and side die cavity (7) all are fixedly installed with guide rod (11), and the upper side of lower die cavity (8) is provided with upper die cavity (9), and the top surface of upper die cavity (9) is fixedly installed with top plate (10), and both sides of top plate (10) are fixedly installed with guide sleeve (12), and the guide sleeve (12) on top plate (10) is matched with guide rod (11) on support plate (4), and upper die cavity (9) is matched with lower die cavity (8).
2. The stamping and bending device for a door hinge according to claim 1, characterized in that: The right side of lower die cavity (8) is provided with guide slot (15), and the guide plate (14) of side plate (5) is slidably installed in the guide slot (15) of lower die cavity (8).
3. The stamping and bending device for a door hinge according to claim 1, characterized in that: Upper die cavity (9) and lower die cavity (8) are all provided with main bending cavity, and the main bending cavity of upper die cavity (9) is matched with the main bending cavity of lower die cavity (8).
4. The stamping and bending device for a door hinge according to claim 3, characterized in that: The outer wall on the right side of upper die cavity (9) and the left end of side die cavity (7) are all opened with auxiliary bending cavity, and the auxiliary bending cavity on the right side of the outer wall of upper die cavity (9) is matched with the auxiliary bending cavity on the left end of side die cavity (7).