WorldSID50 dummy side impact arm skin manufacturing device

Abstract

The utility model relates to a WorldSID50 dummy side impact arm skin manufacturing device. The WorldSID50 dummy side impact arm skin manufacturing device comprises an upper mold box, a lower mold box, a lower insert, a middle module, an upper plug pin, a pouring hole cover plate, a parting surface notch base plate and a taper positioning pin. The upper mold box and the lower mold box are fixed through screws to form a cavity with the outline of the side impact arm, and a lining structure is formed by a lower insert and a middle module, wherein the lower insert and the middle module are fixed through screws. And the upper bolt penetrates through the positioning hole to realize multi-layer accurate positioning. The parting surface notch base plate is embedded in a parting surface notch through a locking screw, and a pouring hole formed by an end curved surface groove is matched with a cover plate with a vent hole, so that air is effectively exhausted, and the filling rate is increased. The device is made of an aluminum alloy material, the durability of the arm connecting port is enhanced through an integral forming process, and the middle module provides accurate contour positioning for framework embedding. The device is exquisite in structure, integrally formed, easy and convenient to operate and light in weight, a pouring system is optimized, the yield is improved, and the device is suitable for manufacturing the WorldSID50 dummy side collision arm skin.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety testing, and in particular to a device for fabricating skin on the side impact arm of a WorldSID50 dummy. Background Technology

[0002] In the field of automotive safety testing, side-impact testing is a crucial step in evaluating vehicle safety performance. The WorldSID50 dummy, an internationally recognized and indispensable testing device for assessing automotive crash safety, is widely used in side-impact tests to simulate the dynamic response and injury risk of the human body during a collision. The dummy's impact testing arm, as a critical component directly in contact with the car door or interior during a side-impact collision, has its skin material's mechanical properties and manufacturing process directly impacting the accuracy and reliability of the test data.

[0003] Currently, the fabrication of the skin for the WorldSID50 dummy arm mainly relies on manual or semi-automated processes, which presents the following problems: First, poor consistency: manual fabrication makes it difficult to precisely control skin thickness, material distribution, and surface texture, resulting in significant performance differences between different batches of products and affecting test repeatability; Second, low efficiency: traditional methods rely on manual operation, resulting in low production efficiency and making it difficult to meet the needs of mass production; Third, insufficient precision: the arm skin needs to fit closely to the dummy's skeleton, and manual molding can easily lead to uneven local stress, affecting the realism of impact force transmission.

[0004] In the prior art, CN216609754U discloses a THOR-50M dummy upper arm skin mold. This device uses a mold pressing molding method and improves the uniformity of skin production through heating and pressure control. However, this technology still has the following limitations: First, insufficient adaptability: the mold is mainly designed for general-purpose dummy arms and is not optimized for the specific structure of the WorldSID50 dummy arm, resulting in a low degree of matching between the skin and bones after molding.

[0005] Secondly, the material adaptability is limited: the skin of the WorldSID50 dummy arm requires the use of specific polyurethane elastomers and PVC materials to simulate the casting and molding of real human tissue. However, the device disclosed in CN216609754U has not been optimized for the flowability and curing characteristics of such highly elastic materials. After the skin is cast and molded, it is impossible to continue to fix the half-arm skeleton, which easily produces air bubbles and uneven thickness, and affects the adhesion between the skin and the skeleton.

[0006] Therefore, there is an urgent need for a WorldSID50 dummy side-impact arm skin fabrication device to solve the problems of poor adaptability, insufficient material molding precision and low production efficiency in the existing technology, thereby improving the reliability of dummy test data. Utility Model Content

[0007] To address the problems in the background art, this utility model provides a device for fabricating skin for a WorldSID50 dummy side-impact arm, which enables the fabrication of a WorldSID50 dummy side-impact arm.

[0008] The purpose of this utility model is achieved through the following technical solution: A WorldSID50 dummy side-impact arm skin fabrication device, comprising an upper mold box, a lower mold box, a lower insert, an intermediate module, an upper pin, a pouring hole cover plate, and a parting surface groove pad plate; the upper mold box and the lower mold box together form a cavity covering the lower insert and the intermediate module in the shape of a half-arm outline; bolt handles are respectively provided on the sides of the upper mold box and the lower mold box; parting surface grooves are provided on the left and right sides of the upper mold box and the lower mold box; parting surface groove pad plates are provided at the grooves; the pouring hole cover plate is fixed by screws at the ends of the upper mold box and the lower mold box; and an exhaust hole is provided in the middle of the pouring hole cover plate.

[0009] The lower insert is fixed to the upper side of the lower mold box with screws, forming a complete inner lining of the side-impact arm skin making device together with the middle module, and is fixed to the upper side of the lower mold box with the upper pin; a positioning hole is provided on the top of the upper mold box, and the upper pin passes through the positioning hole to connect with the lower mold box.

[0010] Furthermore, a positioning hole and a positioning pin hole are provided in the middle of the lower insert. The positioning pin holes are located at both ends of the lower insert and are coaxially connected. The pin holes with different diameters provide a limit for the insertion of the upper pin. The mold lower mold box is provided with a groove. The lower insert is positioned on the mold lower mold box through the groove and the positioning pin. It is tightly connected to the lower insert by a screw that passes through the mold lower mold box.

[0011] Furthermore, the intermediate module is positioned on the lower insert via positioning holes and positioning pins; it is then fixed to the lower insert via an upper pin; the intermediate module provides a limit for the upper pin, and its shape provides the outline dimensions for the embedding of the side impact arm skeleton; one end of the upper pin is a threaded pin shaft, and the other end is a flat handle with a round hole in the middle of the handle to facilitate the screwing in and pulling out of the upper pin; the upper pin passes through the upper mold box, the intermediate module, and the lower insert, and is fixed to the lower mold box via a threaded connection at the end.

[0012] Furthermore, the upper mold box is provided with a positioning hole, and the upper pin passes through the positioning hole and is fitted with the positioning hole with a clearance.

[0013] Furthermore, the parting surface groove pad is embedded in the parting surface groove. The upper surface of the parting surface groove pad is in contact with the upper edge of the parting surface groove of the upper mold box, and the lower surface of the parting surface groove pad is in contact with the lower edge of the parting surface groove of the lower mold box. It is fixed to the top and bottom of the parting surface groove of the upper mold box and the lower mold box respectively by locking screws.

[0014] Furthermore, curved grooves are provided at the ends of the upper mold box and the lower mold box. These curved grooves form the pouring holes of the WorldSID50 dummy side-impact arm manufacturing device. The pouring hole cover plate is fixed to the upper mold box and the lower mold box by screws, and a vent hole is provided in the middle of the pouring hole cover plate.

[0015] Furthermore, tapered positioning pins are provided on the contact surfaces of the upper mold box and the lower mold box, and several positioning holes and threaded holes are provided at intervals. The upper mold box and the lower mold box are fixed together by screws passing through the positioning holes.

[0016] As can be seen from the above technical solutions, this utility model has the following advantages: (1) The mold structure provided by this utility model is ingeniously designed, and the arm connection is integrally formed without demolding, which increases the durability and stability of the dummy side-impact arm connection; (2) The mold structure provided by this utility model is simple and easy to operate. It is made of aluminum alloy material, has a small weight, and the parting surfaces of the upper mold box and the lower mold box are both planar designs, which are easy to process and highly practical; (3) The mold provided by this utility model has a filling port at the end of the joint surface of the upper mold box and the lower mold box. The lower end of the filling port is connected to the upper arm-shaped cavity. The filling port is located at the highest point of the mold. When pouring raw materials, the air in the mold can be discharged to the maximum extent, so that the poured skin raw materials can fully fill the mold and improve the yield of upper arm skin production; (4) The mold provided by this utility model can be inserted through the upper mold cavity, the middle module, the lower insert, and the lower mold box through the upper pin, which ensures the accurate position of the embedded half-arm skeleton and improves the biosimulation performance of the manufactured arm. Attached Figure Description

[0017] Figure 1 This is an upper axonometric drawing of a WorldSID50 dummy side-impact arm skin fabrication device according to this utility model; Figure 2 This is a lower isometric view of a WorldSID50 dummy side-impact arm skin fabrication device according to this utility model; Figure 3 This is an exploded view of a WorldSID50 dummy side-impact arm skin fabrication device according to this utility model.

[0018] Among them: 1-Upper mold box; 2-Lower mold box; 3-Lower insert; 4-Intermediate module; 5-Upper pin; 6-Pour hole cover plate; 7-Parting surface groove pad plate; 8-Tapered positioning pin. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] Figure 1-3 As shown, this embodiment provides a WorldSID50 dummy side-impact arm skin fabrication device, including an upper mold box 1, a lower mold box 2, a lower insert 3, an intermediate module 4, an upper pin 5, a pouring hole cover plate 6, a parting surface groove pad 7, and a tapered positioning pin 8.

[0021] The upper mold box 1 and the lower mold box 2 together form a cavity that covers the lower insert 3 and the intermediate module 4 in a half-arm outline shape. Bolt handles are provided on the sides of the upper mold box 1 and the lower mold box 2 respectively. Parting surface grooves are provided on the left and right sides of the upper mold box 1 and the lower mold box 2. Parting surface groove pads 7 are provided at the grooves. The pouring hole cover plate 6 is fixed by screws at the ends of the upper mold box 1 and the lower mold box 2. A vent hole is provided in the middle of the pouring hole cover plate 6.

[0022] The lower insert 3 is fixed to the upper side of the lower mold box 2 by screws, forming a complete inner liner of the side-impact arm skin fabrication device together with the middle module 4, and is fixed to the upper side of the lower mold box 2 by the upper pin 5. A positioning hole is provided at the top of the upper mold box 1 of the half-arm mold, through which the upper pin 5 passes and connects to the lower mold box 2.

[0023] The lower insert 3 has a positioning hole and a positioning pin hole in the middle. The positioning pin holes are located at both ends of the lower insert 3 and are coaxially connected. The pin holes with different diameters provide a limit for the insertion of the upper pin 5.

[0024] The lower mold box 2 is provided with a groove, and the lower insert 3 is positioned on the lower mold box 2 through the groove and the positioning pin. It is tightly connected to the lower insert 3 by screws that pass through the lower mold box 2.

[0025] The intermediate module 4 is positioned on the lower insert 3 through positioning holes and positioning pins; and then fixed to the lower insert 3 through the upper pin 5; the intermediate module 4 provides a limit for the upper pin 5, and its shape provides the outline size for the embedding of the side impact arm frame.

[0026] One end of the upper pin 5 is a threaded pin shaft, and the other end is a flat handle with a round hole in the middle of the handle to facilitate the screwing in and pulling out of the upper pin 5; the pin shaft of the upper pin 5 passes through the middle module 4 and the lower insert 3 and is fixed to the lower mold box 2 by the threaded connection at the end of the pin shaft.

[0027] The upper mold box 1 is provided with a positioning hole, and the middle section of the upper pin 5 passes through the positioning hole and is fitted with the positioning hole with a clearance.

[0028] The parting surface groove pad 7 is embedded in the parting surface groove. The upper surface of the parting surface groove pad 7 is in contact with the upper edge of the parting surface groove of the upper mold box 1, and the lower surface of the parting surface groove pad 7 is in contact with the lower edge of the parting surface groove of the lower mold box 2. It is fixed to the top and bottom of the parting surface groove of the upper mold box 1 and the lower mold box 2 respectively by locking screws.

[0029] Curved grooves are provided at the ends of the upper mold box 1 and the lower mold box 2. These curved grooves form the pouring holes of the WorldSID50 dummy side-impact arm manufacturing device. Threaded holes are provided on the upper and lower sides of the pouring holes. Threaded through holes are provided on the pouring hole cover plate 6 at the corresponding positions. The pouring hole cover plate 6 is fixed to the upper mold box 1 and the lower mold box 2 by screws. A vent hole is provided in the middle of the pouring hole cover plate 6.

[0030] Tapered positioning pins 8 are provided on the contact surfaces of the upper mold box 1 and the lower mold box 2, and a number of positioning holes and threaded holes are provided at intervals. The upper mold box 1 and the lower mold box 2 are fixed together by screws passing through the positioning holes.

[0031] After the fabrication device is assembled, it needs to be preheated. Once the fabrication device reaches the preheated temperature, it is taken out and first erected so that the pouring hole is facing upwards. Then, the raw material is poured into the fabrication device through the pouring hole. After a certain period of time, the excess material is poured out and the pouring hole is sealed. Finally, the fabrication device is placed in the oven to bake for a certain period of time and then taken out. After demolding, the desired side-collision arm can be obtained.

[0032] Although the present invention has been described in detail above with reference to preferred embodiments, those skilled in the art should understand that the above embodiments are merely illustrative explanations of the present invention and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute a limitation on the scope of the present invention. Any obvious changes, such as equivalent transformations or simple substitutions, based on the technical solution of the present invention without departing from the spirit and scope of the present invention fall within the protection scope of the present invention.

Claims

1. A device for fabricating skin on the side impact arm of a WorldSID50 dummy, characterized in that, include: The mold consists of an upper mold box (1), a lower mold box (2), a lower insert (3), an intermediate module (4), an upper pin (5), a pouring hole cover plate (6), a parting surface groove pad (7), and a tapered positioning pin (8). The upper mold box (1) and the lower mold box (2) together form a cavity with a half-arm contour shape covering the lower insert (3) and the intermediate module (4). Bolt handles are provided on the sides of the upper mold box (1) and the lower mold box (2), and parting surface grooves are provided on the left and right sides of both the upper mold box (1) and the lower mold box (2). The parting surface groove pad (7) and the pouring hole cover plate (6) are fixed by screws at the ends of the upper mold box (1) and the lower mold box (2). A vent hole is provided in the middle of the pouring hole cover plate (6). The lower insert (3) is fixed to the lower mold box (2) by screws, and together with the middle module (4) forms a complete inner liner of the side-collision arm skin making device. It is fixed to the upper side of the lower mold box (2) by the upper pin (5). There is a positioning hole on the top of the upper mold box (1). The upper pin (5) passes through the positioning hole and is connected to the lower mold box (2).

2. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The lower insert (3) is provided with a positioning hole and a positioning pin hole in the middle. The positioning pin hole is located at both ends of the lower insert (3) and is coaxially connected. The pin holes with different diameters provide a limit for the insertion of the upper pin (5). The mold lower mold box (2) is provided with a groove. The lower insert (3) is positioned on the mold lower mold box (2) through the groove and the positioning pin. It is tightly connected to the lower insert (3) by a screw that passes through the mold lower mold box (2).

3. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The intermediate module (4) is positioned on the lower insert (3) through positioning holes and positioning pins; and then fixed to the lower insert (3) through the upper pin (5); the intermediate module (4) provides a limit for the upper pin (5), and its shape provides the outline size for the embedding of the side-impact arm skeleton; one end of the upper pin (5) is a threaded pin shaft, and the other end is a flat handle with a round hole in the middle of the handle to facilitate the screwing in and pulling out of the upper pin (5); the upper pin (5) passes through the upper mold box (1), the intermediate module (4) and the lower insert (3) and is fixed to the lower mold box (2) through the threaded connection at the end.

4. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The upper mold box (1) is provided with a positioning hole, and the upper pin (5) passes through the positioning hole and is fitted with the positioning hole with a clearance.

5. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The parting surface groove pad (7) is embedded in the parting surface groove. The upper surface of the parting surface groove pad (7) is in contact with the upper edge of the parting surface groove of the upper mold box (1), and the lower surface of the parting surface groove pad (7) is in contact with the lower edge of the parting surface groove of the lower mold box (2). It is fixed to the top and bottom of the parting surface groove of the upper mold box (1) and the lower mold box (2) respectively by locking screws.

6. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The upper mold box (1) and the lower mold box (2) are provided with curved grooves at their ends. These curved grooves form the pouring holes of the WorldSID50 dummy side-impact arm manufacturing device. The pouring hole cover plate (6) is fixed to the upper mold box (1) and the lower mold box (2) by screws. The pouring hole cover plate (6) is provided with a vent hole in the middle.

7. The device for fabricating skin for a WorldSID50 dummy side-impact arm according to claim 1, characterized in that: The upper mold box (1) and the lower mold box (2) are provided with tapered positioning pins (8) on their contact surfaces, and are provided with positioning holes and threaded holes at intervals. The upper mold box (1) and the lower mold box (2) are fixed together by screws passing through the positioning holes.

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