Method and device for transferring a mold for a dummy skin in a crash test

Abstract

The application discloses a kind of control method and device for moving and loading of automobile crash dummy skin manufacturing mould, the clamping end of the mould rotates the mould with first rotation axis and second rotation axis, the first rotation axis is perpendicular to the second rotation axis, the control method comprises: responding to instruction information;According to the instruction information, call the rotation speed calibration database, obtain the reference rotation speed corresponding to heating temperature and rotation duration;According to the reference rotation speed, calculate the first target rotation speed of the clamping end along the first rotation axis and the second target rotation speed along the second rotation axis.The application obtains the target rotation speed most matched with the mould by the content of instruction information, calls the rotation speed calibration database and other operations, so that the resin solution in the mould can form high-quality crash dummy skin, and then improve the key parameters such as calibration performance of crash dummy, so that the automobile crash test result is more accurate.

Description

Technical Field

[0001] This invention generally relates to the field of transfer control technology, and specifically to a transfer control method and device for manufacturing a mold for the skin of a car crash dummy. Background Technology

[0002] With the increasing production and use of automobiles in my country, and the growing complexity of traffic conditions, people are paying more and more attention to vehicle safety. Vehicle crash safety is becoming increasingly important. By analyzing the posture of crash test dummies inside the vehicle and the data collected by various sensors in active and passive safety tests, vehicle safety can be effectively verified. Since vehicle safety is a crucial indicator of a car's quality, crash test dummies are indispensable in all aspects of vehicle safety testing.

[0003] As the first line of defense against collision impacts, the dummy skin plays a crucial role in dummy development. During testing, it will inevitably collide with vehicle interior components. Due to the complex structure of the dummy and the need for repeated use, the dummy skin preparation process is particularly important in order to ensure that the test meets the requirements for the dummy skin's structural parameters and biomimetic mechanical properties, as well as the effective protection of its internal muscle layer, skeleton, and precision sensors.

[0004] When manually injecting resin into the skin layer of a crash dummy, a resin solution mixed and stirred according to the specified ratio is poured into a preheated high-temperature mold that is manually removed from the oven. Because there are gaps between the inner wall of the mold and the seams of the embedded skeleton, the surface temperature of the embedded skeleton is lower than that of the inner surface of the mold. Furthermore, the manual injection of the resin solution results in significant flow rate fluctuations. Especially for skin components containing muscle layers, the mold containing the resin solution needs to be turned over and poured out after settling before being placed back into the oven for high-temperature heating. Therefore, uneven heating and different coagulation rates can occur during skin fabrication. These problems severely affect the smoothness and uniformity of the crash dummy's skin, thus affecting key parameters such as the crash dummy's calibration performance and the accuracy of automotive crash test results. To address these issues, we provide a transfer control method for the mold fabrication of automotive crash dummy skin to solve these problems. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a transfer control method and apparatus for manufacturing molds for automobile collision dummy skin to improve the uniformity of dummy skin.

[0006] In a first aspect, the present invention provides a transfer control method for a mold for making skin for a car crash dummy, wherein the clamping end of the mold rotates the mold about a first rotation axis and a second rotation axis, the first rotation axis and the second rotation axis being perpendicular to each other, and the control method includes: In response to the instruction information, the instruction information includes at least: heating temperature and rotation duration corresponding to the heating temperature; According to the instruction information, the rotation speed calibration database is invoked to obtain the reference rotation speed corresponding to the heating temperature and the rotation duration; the rotation speed calibration database includes at least: heating temperature range, rotation duration range, and reference rotation speed corresponding to the heating temperature range and the rotation duration range; Based on the reference rotational speed, calculate the first target rotational speed of the clamping end as it rotates along the first rotational axis and the second target rotational speed as it rotates along the second rotational axis.

[0007] According to the technical solution provided by the embodiments of the present invention, the step of calculating a first target rotational speed of the clamping end rotating along the first rotational axis and a second target rotational speed of the clamping end rotating along the second rotational axis based on the reference rotational speed includes: Obtain the first weighting coefficient and the second weighting coefficient; The first target speed is calculated based on the reference speed and the first weighting coefficient; and the second target speed is calculated based on the reference speed and the second weighting coefficient.

[0008] According to the technical solution provided by the embodiments of the present invention, the step of obtaining the first weighting coefficient and the second weighting coefficient includes: Obtain the size information of the mold, the size information including: the first edge distance of the mold outline along the first rotation axis and the second edge distance of the mold outline along the second rotation axis; Based on the first edge distance and the second edge distance, calculate the first weighting coefficient corresponding to the first rotation axis and the second weighting coefficient corresponding to the second rotation axis.

[0009] Secondly, the present invention provides a transfer device for manufacturing a skin mold for an automotive crash dummy, which applies the aforementioned transfer control method for manufacturing a skin mold for an automotive crash dummy, the transfer device comprising: A base having a mounting surface; A first transfer assembly is mounted on the mounting surface and has a first rotation drive end; the first rotation axis of the first rotation drive end is parallel to the mounting surface. A second transfer assembly is connected to the first rotary drive end, and the second transfer assembly has a second rotary drive end; the second rotation axis of the second rotary drive end is perpendicular to the first rotation axis. A gripping component is connected to the second rotary drive end and is used to grip the mold.

[0010] According to the technical solution provided in the embodiments of the present invention, the second transfer component includes: A flipping rod, the middle part of which is connected to the first rotation drive end, the flipping rod having a first end and a second end; A first moving unit, the first moving unit having a second rotation driving end, and the end of the first moving unit away from the second rotation driving end being fixedly connected to the first end; The first counterweight is disposed at the second end.

[0011] According to the technical solution provided by the embodiments of the present invention, the grasping component includes: A gripper having a first side and a second side opposite to each other; the first side is connected to the second rotary drive end; A plurality of gripping units are disposed on the second side; each gripping unit includes a first driving unit; the output end of the first driving unit is connected to a gripping member; the gripping member is used to grip the mold. According to the technical solution provided by the embodiments of the present invention, the first driving unit has a first working state and a second working state; In the first working state, the first driving unit drives the gripper to rotate along a first direction; the first direction is perpendicular to the first rotation axis and the second rotation axis. In the second working state, the first driving unit drives the gripper to move along the rotation axis of the second rotary driving end.

[0012] According to the technical solution provided by the embodiment of the present invention, the first driving part includes: a driving housing and a rotary driving member and a locking member disposed inside the driving housing; the locking member has a first station and a second station distributed along a direction perpendicular to the mounting surface; When the locking member is located at the first working position, the locking member passes through the rotary drive member and engages with the drive housing, and the first drive part is in the first working state; When the locking member is located at the second working position, the locking member is away from the rotary drive member, and the first drive unit is in the second working state.

[0013] According to the technical solution provided in the embodiments of the present invention, the first transfer component includes: A movable plate, which is mounted on the mounting surface; The second moving unit has a first driving end, one end of which is fixedly connected to the moving plate, and the other end of which is slidably connected to the mounting surface; the first driving end is used to drive the moving plate to move in a direction parallel to the mounting surface.

[0014] According to the technical solution provided in the embodiments of the present invention, the first transfer component further includes: A rotating support member is disposed on the movable plate; The third moving unit has a third rotary drive end, the rotation axis of which is perpendicular to the mounting surface; one end of the third rotary drive end is connected to the rotary support member.

[0015] According to the technical solution provided by the embodiments of the present invention, the third moving unit further includes: a telescopic member and a support rod; The telescopic component has a connecting end and a telescopic end; the connecting end is fixedly connected to the third rotary drive end through the connecting component, and the telescopic end is hinged to the support rod; The support rod is also hinged to the third rotary drive end; the support rod has a third end and a fourth end; the third end is connected to the first rotary drive end; The second counterweight is disposed at the fourth end.

[0016] In summary, this technical solution specifically discloses a transfer control method for a mold for making skin for a car crash dummy, comprising: responding to instruction information, the instruction information including at least: heating temperature and rotation duration corresponding to the heating temperature; subsequently, according to the instruction information, calling a rotation speed calibration database to obtain a reference rotation speed corresponding to the heating temperature and the rotation duration; the rotation speed calibration database including at least: heating temperature range, rotation duration range, and reference rotation speed corresponding to the heating temperature range and the rotation duration range; after confirming the reference rotation speed, a first target rotation speed for the clamping end rotating along the first rotation axis and a second target rotation speed for the clamping end rotating along the second rotation axis can be calculated based on the reference rotation speed.

[0017] This invention drives the mold clamping end to rotate, thereby homogenizing the resin solution inside the mold. This avoids the problem of poor flatness and uniformity of the dummy skin caused by the irregular shape of the internal cavity of the mold during the period when the mold is naturally placed under gravity. Furthermore, by calling the speed calibration database according to the instruction information, the optimal target speed is obtained, so that the resin solution inside the mold forms a high-quality collision dummy skin, improving the key parameters such as the calibration performance of the collision dummy, and further improving the accuracy of the car collision test results. Attached Figure Description

[0018] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 A flowchart illustrating a transfer control method for creating a mold for the skin of a car crash dummy.

[0020] Figure 2 A flowchart illustrating step 300 in a method for controlling the transfer of a mold for creating a car crash dummy skin.

[0021] Figure 3 A front view of a transfer device for creating a mold for the skin of a car crash dummy.

[0022] Figure 4 Axonometric view of a transfer device for creating a mold for the skin of a car crash dummy.

[0023] Figure 5 A schematic diagram of the first drive unit of a transfer device for making a mold for the skin of a car crash dummy in its first working state.

[0024] Figure 6 A schematic diagram of the first drive unit of a transfer device for making a mold for the skin of a car crash dummy in a second working state.

[0025] Labels in the diagram: 100, Base; 200, First transfer assembly; 201, Moving plate; 202, Second moving unit; 203, Rotating support; 204, Third moving unit; 205, Telescopic component; 206, Support rod; 207, Second counterweight; 208, Second gear; 209, Fourth motor; 210, Slide groove; 211, Pulley; 212, Rotating bracket; 213, Cylinder; 214, Cylinder piston rod; 215, Connecting plate; 216, Sixth motor; 217, Rib plate; 218, Cylinder mounting plate. 300. Base lugs; 301. Second transfer assembly; 302. Tilting rod; 303. First moving unit; 304. First counterweight; 305. Robotic arm; 306. Driving bevel gear; 307. Gear fixing rod; 408. Driven bevel gear; 409. Grip assembly; 400. Grip seat; 401. Grip unit; 402. Gripping component; 403. Gripping element; 404. Drive housing; 405. Rotary drive component; 406. Locking component; 407. First gear; 408. Friction roller; 409. Traction line; 500. Mold. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1 Please refer to Figure 1 The flowchart shown in this embodiment illustrates a transfer control method for a car crash dummy skin fabrication mold. Taking into account the characteristic that the clamping end of the mold can rotate the mold around a first rotation axis and a second rotation axis, the control method includes: S100: In response to instruction information, the instruction information includes at least: heating temperature and rotation duration corresponding to the heating temperature; S200: According to the instruction information, call the rotation speed calibration database to obtain the reference rotation speed corresponding to the heating temperature and the rotation duration; the rotation speed calibration database includes at least: heating temperature range, rotation duration range, and reference rotation speed corresponding to the heating temperature range and the rotation duration range; S300: Based on the reference rotation speed, calculate the first target rotation speed of the clamping end rotating along the first rotation axis and the second target rotation speed of the second rotation axis.

[0029] Specifically, in step 100: the mold transfer device responds to the command information from the control terminal, the command information including at least: heating temperature and rotation duration corresponding to the heating temperature; Because the heating temperature is adjusted according to the size of the mold to prevent larger molds from cooling down too quickly when taken out of the oven, the heating temperature varies for different molds. In addition, the rotation time is set by the technicians according to actual needs.

[0030] It should be noted that due to the limited size of the molds (collision dummies are generally divided into adults, teenagers and children), the heating temperature and rotation time also have a certain range. For example, the size of the leg mold for an adult dummy is relatively large, so in order to ensure that the liquid inside the mold is evenly dispersed, the heating temperature and rotation time will vary within a certain range based on the size of the mold.

[0031] In step S200: According to the instruction information, the rotation speed calibration database is called to obtain the reference rotation speed corresponding to the heating temperature and the rotation duration. The structure of the rotation speed calibration database is shown in Table 1 below. The corresponding reference rotation speed is found according to the instruction information.

[0032] Table 1 Speed ​​Calibration Database It should be noted that the aforementioned speed calibration database was established through preliminary experiments conducted by technical personnel. The experiments can be simply understood as follows: First, a standard cylindrical hollow mold with a sandwich structure was fabricated as the initial mold (e.g., 15cm × 15cm). The standard hollow mold has two openings, one at the top and one at the bottom. It was placed in an oven and heated to a specified temperature. Then, the top opening was opened, and the bottom opening was closed, allowing resin solution to be injected. The resin solution would form a dummy skin layer within the sandwich structure. Based on the defined speed range of V1*~V2*, the speed gradient was established as ΔV = (V1* - V2*) / A, where A is a constant positive integer, and the experimental speed V... a Rotate, where V a = V1*+nΔV, n=0, 1, 2, ..., A. Pour out the liquid after standing for a period of time. Rotate along the first and second rotation axes at a certain test speed, then place it in an oven and bake for a certain time. Remove the finished skin, control other variables, and compare the quality of the finished skin under different test speeds (the quality inspection methods for finished skin include, for example, touch and elasticity checks: dummy skin should have good touch and elasticity, usually requiring touch tests, compression rebound rate tests, tear strength tests, etc. The hardness of bionic skin is usually between 30-60 Shore A, the tensile strength is between 5-10 MPa, and the elongation at break is between 400%-1000%). Select the speed corresponding to the best product, which is the reference speed. In addition, since a hollow mold with the same length as the diameter of the bottom circle (which can be understood as the length along the first and second rotation axes, such as the above 15cm×15cm specification) is used when establishing the speed calibration database, the reference speeds corresponding to rotation along the first and second rotation axes are also consistent.

[0033] like Figure 2 As shown, step S300: Based on the reference rotational speed, calculate the first target rotational speed of the clamping end rotating along the first rotational axis and the second target rotational speed rotating along the second rotational axis, including the following steps: S301: Obtain the first weighting coefficient and the second weighting coefficient; S302: Calculate the first target speed based on the reference speed and the first weighting coefficient; and calculate the second target speed based on the reference speed and the second weighting coefficient.

[0034] Based on the establishment of the speed calibration database mentioned above, it can be seen that the speed calibration database is only established based on the initial mold specifications, such as 15cm × 15cm; therefore, in actual operation, corresponding speed adjustments need to be made for molds of different specifications.

[0035] For example, when the heating temperature range is within T1-T2 and the rotation speed duration is within t1-t2, the corresponding reference speed is V1. However, since the rotation speed calibration database is established based on a mold with a specification of 15cm × 15cm, it is necessary to assign corresponding first weighting coefficients and second weighting coefficients based on this reference speed to obtain the first target rotation speed and the second target rotation speed, thereby driving the clamping end of the mold to rotate the mold at the first target rotation speed and the second target rotation speed.

[0036] Further, S301: The steps for obtaining the first weighting coefficient and the second weighting coefficient are as follows: Obtain the size information of the mold, the size information including: the first edge distance of the mold outline along the first rotation axis and the second edge distance of the mold outline along the second rotation axis; Based on the first edge distance and the second edge distance, calculate the first weighting coefficient corresponding to the first rotation axis and the second weighting coefficient corresponding to the second rotation axis.

[0037] As can be seen from the above description, the determination of the first weighting coefficient and the second weighting coefficient is based on the first reference edge distance of the standard mold (initial mold) outline along the first rotation axis and the second reference edge distance of the standard mold outline along the second rotation axis, calculated with the actual mold size information at the beginning of the speed calibration database establishment. Among them, the first reference edge distance and the second reference edge distance represent the length of the standard mold along the first rotation axis and the length along the second rotation axis, respectively. If we take a cylindrical hollow mold placed along the first rotation axis as an example, the first reference edge distance and the second reference edge distance can be understood as the length of the mold and the diameter of the bottom circle of the mold.

[0038] Taking a mold with dimensions of 15cm × 15cm (distance between the first reference edge and the second reference edge) and a reference rotation speed of V1 as an example, if the mold heating temperature range is consistent with the rotation speed duration, but the mold size information is displayed as 30cm × 15cm; accordingly, when the clamping end of the mold rotates along the first rotation axis, the rotation speed is adjusted to 2V1, while when rotating along the first rotation axis, the rotation speed is still V1; accordingly, based on the above example, it can be seen that in this case, the first weighting coefficient is 2 and the second weighting coefficient is 1.

[0039] In summary, the transfer control method for manufacturing a car crash dummy skin mold provided by this invention can reasonably control the clamping end of the transfer device to rotate the mold at a target speed that matches the existing conditions, based on the mold specifications and process requirements (heating temperature and rotation time) selected in the actual situation. This allows the resin solution inside the mold to better adhere to the mold and the thickness to be more uniform. At the same time, the rotation process also accelerates the coagulation speed of the skin layer and reduces the generation of internal pores, further improving the quality of the crash dummy skin.

[0040] Example 2 like Figure 3 As shown, this embodiment provides a transfer device for manufacturing a car crash dummy skin mold, which is based on the transfer control method for manufacturing a car crash dummy skin mold provided in Embodiment 1. The transfer device includes: Base 100, base 100 has a mounting surface; A first transfer assembly 200 is mounted on a mounting surface and has a first rotary drive end; the first rotation axis of the first rotary drive end is parallel to the mounting surface. The second transfer assembly 300 is connected to the first rotary drive end and has a second rotary drive end; the second rotation axis of the second rotary drive end is perpendicular to the rotation axis of the first rotary drive end. The gripping component 400 is connected to the second rotary drive end and is used to grip the mold 500.

[0041] The manufacturing process of hollow dummy skin involves the following steps: a cleaned mold is placed in an oven and heated to a certain temperature for a specific time. The high-temperature mold is then removed and filled with a mixed resin solution. After the mold is left to stand naturally for a period of time, it is turned over to pour out the unsolidified solution, resulting in a semi-solid skin layer on the inner surface of the mold. Therefore, it needs to be placed back into the high-temperature oven for further heating and shaping. However, under the influence of gravity, the irregular shape of the internal cavity of the mold during the natural standing period leads to poor flatness and uniformity of the dummy skin. Furthermore, heating a large high-temperature mold in an oven poses certain handling risks. Therefore, this embodiment provides a transfer device that combines handling and multi-directional rotation to ensure uniform dispersion of the resin solution within the mold.

[0042] In this embodiment, the upper surface of the base 100 is formed for mounting the first transfer assembly 200; The first transfer assembly 200 has a first rotary drive end, which is used to drive the second transfer assembly 300 to rotate along a rotation axis parallel to the mounting surface. The second transfer assembly 300 has a second rotary drive end, which drives the gripping assembly 400 to rotate along the rotation axis of the second rotary drive end; specifically, the directions of the first rotation axis of the first rotary drive end and the second rotation axis of the second rotary drive end can be found in [reference needed]. Figure 3 The arrows Y (first axis of rotation) and Z (second axis of rotation) indicate the directions.

[0043] As can be seen from the above, since the gripping component 400 used to grip the mold 50 needs to be connected to the second rotary drive end as the clamping end of the transfer device, when the gripping component 400 grips the mold 500, the first transfer component 200 drives the second transfer component 300 to rotate, thereby causing the mold 500 to rotate along the first rotation axis parallel to the mounting surface; and the second transfer component 300 can then drive the mold 500 to rotate along the second rotation axis perpendicular to the first rotation axis through the second rotary drive end. At this time, the mold 500 can rotate in two directions under the control of the transfer device, further accelerating the skin layer coagulation speed and reducing the generation of internal pores after liquid injection, resulting in a collision dummy skin with a relatively uniform thickness.

[0044] like Figure 3 As shown, the second transfer assembly 300 includes: A flipping rod 301 is connected to a first rotary drive end at its middle part. The flipping rod 301 has a first end and a second end. The first rotary drive end drives the second transfer assembly 300 to rotate through the flipping rod 301. The first moving unit 302 has a second rotation driving end, and the end of the first moving unit 302 away from the second rotation driving end is fixedly connected to the first end. The first counterweight 303 is located at the second end.

[0045] Specifically, such as Figure 3 As shown, the first moving unit 302 is connected to the first end of the flipping rod 301 via a robotic arm 304. The robotic arm 304 has two branch connecting sections. One branch connecting section houses a first motor, and the drive end of the first motor is connected to a driving bevel gear 305. The other branch connecting section is connected to a driven bevel gear 307 via a gear fixing rod 306. Specifically, the inner surface of the gear fixing rod 306 is rotatably connected to the outer surface of the robotic arm 304, while the inner cylindrical surface of the driven bevel gear 307 is fixedly connected to the outer surface of the gear fixing rod 306. Thus, when the first motor drives the driving bevel gear 305 to rotate, the driving bevel gear 305 meshes with the driven bevel gear 307, causing the driven bevel gear 307 to drive the gear fixing rod 306 to rotate.

[0046] Based on the above, it can be seen that the second rotation drive end of the first moving unit 302 is formed by the mechanical arm 304, the driving bevel gear 305, the gear fixing rod 306 and the driven bevel gear 307. Accordingly, the direction of the rotation axis of the driven bevel gear 307 driving the gear fixing rod 306 to rotate is the direction of the second rotation axis.

[0047] like Figure 3 As shown, the grabbing component 400 includes: The gripper 401 has a first side and a second side facing each other; the first side is connected to the second rotary drive end. Several gripping units 402 are disposed on the second side; each gripping unit 402 includes a first driving unit; the output end of the first driving unit is connected to a gripping member 403; the gripping member 403 is used to grip the mold 500. Specifically, the first end of the gripper 401 is connected to the end of the gear fixing rod away from the robotic arm. Optionally, the gear fixing rod 306 has two circular blind holes on its lower surface and is equipped with an electromagnetic device that provides clamping force to the clamping mating surface. The gear fixing rod 306 and the gripper 401 can be quickly disassembled and quickly assembled by turning the electromagnetic device on and off, thereby realizing the quick assembly and disassembly of the mold 500 and the entire transfer device. The gripping unit 402 is the main component for gripping the mold 500. Specifically, it includes a first driving part and a gripping member 403. The gripping member 403 can complete the gripping action of the mold 500 under the drive of the first driving part, such as opening and closing the gripping member 403.

[0048] like Figure 5 and Figure 6 As shown, the first drive unit has a first working state and a second working state; In the first operating state, the first driving unit drives the gripping member 403 to rotate along a first direction; the first direction is perpendicular to the rotation axis of the first and second rotary driving ends; here, the first direction can be referred to as... Figure 3 The direction in which the middle arrow X points; In the second working state, the first driving unit drives the gripper 403 to move along the rotation axis of the second rotary driving end.

[0049] Specifically, when the first drive unit is in the first working state, the first drive unit can drive the gripper 403 to open and close to grip the mold 500. Since the specifications of the mold for making the skin of the car crash dummy are within a certain range (the types of dummies are relatively fixed, including adults and teenagers, but adults are generally used in crash tests, so the specifications of the mold will not vary greatly), the gripper unit 402 was designed from the beginning to be able to grip the mold of basic specifications, so as to ensure that the gripper 403 will not fail to grip due to the mold being too large.

[0050] When the first drive unit is in the second working state, the first drive unit can drive the gripper 403 to move along the rotation axis of the second rotary drive end, and further engage the mold 500 between the multiple gripping units 402.

[0051] Furthermore, such as Figure 5 and Figure 6 As shown, the first drive unit includes: a drive housing 404 and a rotary drive member 405 and a locking member 406 disposed inside the drive housing 404; the locking member 406 has a first station and a second station distributed in a direction perpendicular to the mounting surface. When the locking member 406 is in the first working position, the locking member 406 passes through the rotary drive member 405 and engages with the drive housing 404, and the first drive unit is in the first working state. When the locking member 406 is in the second working position, the locking member 406 is away from the rotary drive member 405, and the first drive unit is in the second working state.

[0052] Specifically, in combination Figure 5 and Figure 6 It is understood that the first driving unit includes: a second motor is disposed outside the driving housing 404, the second motor is disposed on the second side of the gripping seat 401, and the driving end of the second motor forms a rotary driving member 405, which can be simply understood as the rotating shaft of the second motor, and the first direction can also be understood as the direction of the rotation axis of the rotary driving member 405; the rotary driving member 405 passes through the driving housing 404 and is connected to the first gear 407 disposed inside the driving housing 404.

[0053] The rotary drive component 405 also passes through the first gear 407 and is fixedly connected to the first gear 407. At this time, the second motor can drive the first gear 407 to rotate. The first gear 407 meshes with the gripper 403, thereby achieving the purpose of driving the gripper 403 to move through the first drive unit. In addition, the rotary drive component 405 has a locking hole that matches the shape and position of the locking component 406. Correspondingly, the upper and lower end surfaces of the drive housing 404 also have mounting holes corresponding to the locking holes. The first drive unit also includes a locking member 406, which is optionally a movable cylindrical pin. Since the rotary drive member 405 has a locking hole, the locking member 406 has two positions. The first position can be understood as the position where the locking member 406 is inserted into the locking hole and enters the mounting hole on the drive housing 404 and engages with the drive housing 404. The second position can be understood as the position where the locking member 406 leaves the locking hole and is simply inserted into the mounting hole on the drive housing 404.

[0054] Combination Figure 5 and Figure 6 The following describes the cooperative operation of the first drive unit and the gripper 403: When the locking member 406 is in the first position, since the locking member 406 is engaged with the rotary drive member 405 and the drive housing 404 through the locking hole and the mounting hole respectively, when the second motor drives the rotary drive member 405 to rotate, the drive housing 404, the first gear 407, the locking member 406 and the gripper 403 will all rotate to a certain extent. At this time, the first gear 407 and the gripper 403 do not move relative to each other, but swing along the first direction under the drive of the first drive unit. At this time, the first drive unit is in the first working state, realizing the opening and closing of the gripper 403. When the locking member 406 is in the second working position, since the locking member 406 is only engaged with the drive housing 404 through the mounting hole, when the second motor drives the rotary drive member 405 to rotate, the first gear 407 will rotate with the rotary drive member 405, while the drive housing 404 and the gripper 403 will not rotate. However, since the first gear 407 is meshed with the gripper 403, the gripper 403 can reciprocate along the rotation axis of the second rotary drive end with the first gear 407, which can further clamp the mold 500. At this time, the first drive unit is in the second working state.

[0055] It should be noted that the gripper 403 is selected, for example, as an "L-shaped" gripper 403. The long arm of the "L-shape" is designed like a rack and pinion, and also extends through the drive housing 404, so that the first gear 407 can mesh with it for subsequent driving. The short arm at the bottom of the "L-shape" is used to clamp the mold, and a pressure sensor is also provided on it. The pressure sensor detects whether the mold 500 has been placed on the gripper 403, and then feeds back the drive signal to the first drive unit and the second motor. When the pressure increases to a certain value, the second motor stops rotating and maintains the pressure, which also prevents the gripper 403 from excessively squeezing the mold 500. When the first drive unit is in the second working state, the reciprocating movement of the gripper 403 can make the short arm engage with the mold more tightly. Regarding the design of the drive housing 404, corresponding through holes need to be opened on the upper and lower end faces of the drive housing 404 so that the gripper 403 can be set at the through holes and can perform the above-mentioned reciprocating movement. Finally, the first drive unit also includes a locking drive unit capable of moving the locking member 406; the type of locking drive unit is, for example, a design of friction roller 408 and traction line 409, and the friction roller 408 also has a third motor that drives its rotation, the drive end of the third motor being connected to it; the friction roller 408 is wound with a certain elastic traction line 409 (in actual application, the gripper 403 only needs to complete the opening and closing action within a slight amplitude, in order to avoid the phenomenon of the traction line 409 breaking when the locking member 406 moves along, the traction line is a certain elastic wire harness), and the traction line is connected to the top of the locking member 406, thereby realizing the operation of switching the locking member 406 between the first station and the second station by using the clockwise rotation and counterclockwise rotation of the third motor.

[0056] like Figure 4 As shown, the first transfer assembly 200 includes: The movable plate 201 is mounted on the mounting surface and is used to drive the entire transfer device to move along the length of the base 100. The second moving unit 202 has a first driving end. One end of the first driving end is fixedly connected to the moving plate 201, and the other end is slidably connected to the mounting surface. The first driving end is used to drive the moving plate 201 to move in a direction parallel to the mounting surface.

[0057] Optionally, the first driving end of the second moving unit 202 is composed of a second gear 208 and a fourth motor 209 connected to the second gear 208. The driving end of the fourth motor 209 is connected to the second gear 208, and the bracket of the fourth motor 209 is fixedly connected to the moving plate 201. The fourth motor 209 is used to drive the second gear to rotate.

[0058] Specifically, in actual application, a rack extending along the length of the base 100 is provided on the top side of one side of the base 100, and the second gear 208 is meshed with the rack; and two corresponding sliding grooves 210 are provided inside the base 100 (the extension direction of the sliding grooves corresponds to the direction in which the rack is set). Correspondingly, pulleys 211 are provided on both sides of the moving plate 201, and the pulleys 211 are set in the sliding grooves 210 and are indirectly driven to move by the fourth motor 209.

[0059] In practical applications, when the fourth motor 209 drives the second gear 208 to rotate, the second gear 208 will move along the extension direction of the rack. Since the fourth motor 209 and the moving plate 201 are fixedly connected through the fourth motor bracket, the second gear 208 will drive the entire moving plate 201 to move. During the movement, the movement resistance is reduced by the cooperation of the pulley 122 and the slide groove 210, making the movement of the moving plate 201 smoother, and further making the main part of the entire transfer device on the moving plate 201 easier to move on the base 100.

[0060] like Figure 3 and Figure 4 As shown, the first transfer assembly 200 further includes: A rotating support 203 is mounted on a movable plate 201 to support the rotation of the third rotating drive end. Multiple ribs 217 are provided on the outer circumference of the rotating support 203 to improve its support strength.

[0061] The third moving unit 204 has a third rotary drive end, the rotation axis of which is perpendicular to the mounting surface; one end of the third rotary drive end is connected to the rotary support 203.

[0062] Optionally, the third rotary drive end consists of an external rotating shaft and a fifth motor. The external rotating shaft is connected to the drive end of the fifth motor. The rotating support 203 is mainly used to support the rotation of the external rotating shaft (the relative rotation of the two parts will inevitably use conventional parts such as bearings, so no special explanation is given). The external rotating shaft is also provided with a rotating bracket 212 fixed to it for subsequent connection and installation operations.

[0063] In actual operation, driven by the fifth motor in the third moving unit 204 and the external rotating shaft, the part connected to the rotating bracket 212 can rotate along the rotation axis perpendicular to the mounting surface.

[0064] like Figure 3 As shown, the third moving unit also includes: a telescopic member 205 and a support rod 206; the third moving unit is the part connected to the first transfer assembly 200 and the second transfer assembly 300.

[0065] The telescopic member 205 has a connecting end and a telescopic end; the connecting end is fixedly connected to the third rotary drive end through a connector, and the telescopic end is hinged to the support rod 206; optionally, the telescopic member 205 is a telescopic movable pair formed by the cooperation of a cylinder 213 and a cylinder piston rod 214 (corresponding to the telescopic end); It should be noted that the upper surface of the connector is provided with a cylinder mounting base lug 218, which is hinged to the connecting end of the telescopic component 205, so that the entire telescopic component 205 can be more flexible during operation.

[0066] The support rod 206 is also hinged to the third rotary drive end; the support rod 206 has a third end and a fourth end; the third end is connected to the first rotary drive end; The second counterweight 207 is located at the fourth end.

[0067] Specifically, the support rods 206 are all hinged to the telescopic member 205 and the rotating bracket 212 through mounting pins, so that when the cylinder drives the cylinder piston rod to move along its axis, the support rods 206 can swing around the intersection of the support rods 206 and the rotating bracket 212 as the base point under the drive of the telescopic member 205, thereby causing the telescopic member 205 and the support rods 206 to drive the first transfer assembly 200 to swing towards the mounting surface and away from the mounting surface.

[0068] Meanwhile, the support rod 206 has a third end and a fourth end, with the third end connected to the first rotary drive end. It should be clarified that both hinge points of the support rod 206 are located on the rod body, while the third and fourth ends are the two ends of the support rod 206. The fourth end is equipped with a second counterweight. The functions of both the first counterweight 303 and the second counterweight 207 are to ensure the smooth execution of the drive action. The second counterweight 207 ensures the normal operation of the telescopic member 205 and the support rod 206 in driving the first transfer assembly 200 to swing towards and away from the mounting surface. The first counterweight 303 ensures the normal operation of the first rotary drive end in driving the second transfer assembly 300 to rotate along the first rotation axis.

[0069] The third end of the support rod 206 is connected to the first rotary drive end via the connecting plate 215; optionally, the first rotary drive end is also composed of a sixth motor 216, one end of which is fixedly connected to the connecting plate 215, and its drive end is connected to the flipping rod 301, used to drive the flipping rod 301, the first moving unit 302, and the first counterweight 303 to rotate; furthermore, see... Figure 4 In addition to the support rod 206, the connecting plate 215 and the rotating bracket 212 are also hinged with two other support rods. The support rods are used to assist the telescopic member 205 and the support rod 206 in driving the first transfer assembly 200 to swing towards the mounting surface and away from the mounting surface, so as to prevent the support rod 206 from failing to provide sufficient control force.

[0070] In summary, the present invention provides a transfer device for manufacturing a car crash dummy skin mold, which replaces manual transfer and specifically flips the mold 500 to make the resin solution inside the mold 500 more uniform, thereby improving the quality of the crash dummy skin. Its specific working principle is as follows: When the mold 500 needs to be moved to a designated position, the first drive unit in the gripping assembly 400 will grip and clamp the mold 500 by switching between the first working state and the second working state. Regarding the movement state of the mold 500, after the gripping component 400 completes the gripping operation, the first transfer component 200 can move in the following manner: the cooperation between the second moving unit and the moving plate 201 enables the mold 500 to move along the extension direction of the base 100 (see...). Figure 3 (The direction indicated by arrow Y); Since the third moving unit has both a rotating bracket 212 and a telescopic component 205, the mold 500 can rotate along the axis of the rotating bracket 212 with the cooperation of the fifth motor and the rotating bracket 212 (see...). Figure 3 (The direction indicated by arrow Z); and the cooperation of the telescopic component 205 and the support rod 206 can drive the mold 500 to swing along the direction of the first rotation axis (moving towards or away from the mounting surface, i.e., in...) Figure 3 (The first transfer assembly 200 also has a first rotary drive end, so the cooperation of the sixth motor 216 and the flipping rod 301 can drive the mold 500 to rotate along the direction of the first rotation axis; the first transfer assembly 200 can produce the following movement mode: the cooperation of the first motor, the driving bevel gear 305 and the driven bevel gear 307 can drive the mold 500 to rotate along the direction of the second rotation axis.

[0071] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A method for transfer control in the fabrication of a mold for the skin of a car crash dummy, characterized in that, The clamping end of the mold rotates the mold about a first rotation axis and a second rotation axis, wherein the first rotation axis and the second rotation axis are perpendicular to each other, and the control method includes: In response to the instruction information, the instruction information includes at least: heating temperature and rotation duration corresponding to the heating temperature; According to the instruction information, the rotation speed calibration database is invoked to obtain the reference rotation speed corresponding to the heating temperature and the rotation duration; the rotation speed calibration database includes at least: heating temperature range, rotation duration range, and reference rotation speed corresponding to the heating temperature range and the rotation duration range; Based on the reference rotational speed, calculate the first target rotational speed of the clamping end as it rotates along the first rotational axis and the second target rotational speed as it rotates along the second rotational axis.

2. The method for transfer control of a mold for making skin for a car crash dummy according to claim 1, characterized in that, The step of calculating the first target rotational speed of the clamping end rotating along the first rotational axis and the second target rotational speed rotating along the second rotational axis based on the reference rotational speed includes: Obtain the first weighting coefficient and the second weighting coefficient; The first target speed is calculated based on the reference speed and the first weighting coefficient; and the second target speed is calculated based on the reference speed and the second weighting coefficient.

3. The method for transfer control of a mold for making skin for a car crash dummy according to claim 2, characterized in that, The steps of obtaining the first weighting coefficient and the second weighting coefficient include: Obtain the size information of the mold, the size information including: the first edge distance of the mold outline along the first rotation axis and the second edge distance of the mold outline along the second rotation axis; Based on the first edge distance and the second edge distance, calculate the first weighting coefficient corresponding to the first rotation axis and the second weighting coefficient corresponding to the second rotation axis.

4. A transfer device for creating a mold for the skin of a car crash dummy, characterized in that, The method for transferring and controlling the fabrication of a car crash dummy skin mold according to any one of claims 1-3, wherein the transfer device comprises: A base (100) having a mounting surface; A first transfer assembly (200) is mounted on the mounting surface and has a first rotation drive end; the first rotation axis of the first rotation drive end is parallel to the mounting surface. A second transfer assembly (300) is connected to the first rotary drive end, and the second transfer assembly (300) has a second rotary drive end; the second rotation axis of the second rotary drive end is perpendicular to the first rotation axis. A gripping component (400) is connected to the second rotary drive end and is used to grip the mold (500).

5. The transfer device for making a mold for the skin of a car crash dummy according to claim 4, characterized in that, The second transfer assembly (300) includes: A flip rod (301) is connected at its middle part to the first rotation drive end, and the flip rod (301) has a first end and a second end; A first moving unit (302) has a second rotation driving end, and one end of the first moving unit (302) away from the second rotation driving end is fixedly connected to the first end; The first counterweight (303) is disposed at the second end.

6. The transfer device for making a mold for a car crash dummy skin according to claim 5, characterized in that, The grasping component (400) includes: A gripper (401) has a first side and a second side opposite to each other; the first side is connected to the second rotary drive end; A plurality of gripping units (402) are disposed on the second side; each gripping unit (402) includes a first driving unit; the output end of the first driving unit is connected to a gripping member (403); the gripping member (403) is used to grip the mold.

7. The transfer device for making a mold for a car crash dummy skin according to claim 6, characterized in that, The first drive unit has a first working state and a second working state; In the first working state, the first driving unit drives the gripper (403) to rotate along a first direction; the first direction is perpendicular to the first rotation axis and the second rotation axis; In the second working state, the first driving unit drives the gripper (403) to move along the rotation axis of the second rotating driving end.

8. The transfer device for making a mold for a car crash dummy skin according to claim 7, characterized in that, The first driving unit includes: a driving housing (404) and a rotary driving member (405) and a locking member (406) disposed inside the driving housing (404); the locking member (406) has a first station and a second station distributed in a direction perpendicular to the mounting surface; When the locking member (406) is located at the first working position, the locking member (406) passes through the rotary drive member (405) and engages with the drive housing (404), and the first drive unit is in the first working state; When the locking member (406) is located at the second working position, the locking member (406) is away from the rotary drive member (405), and the first drive unit is in the second working state.

9. The transfer device for making a mold for a car crash dummy skin according to claim 8, characterized in that, The first transfer component (200) includes: A movable plate (201) is mounted on the mounting surface; The second moving unit (202) has a first driving end, one end of which is fixedly connected to the moving plate (201), and the other end of which is slidably connected to the mounting surface; the first driving end is used to drive the moving plate (201) to move in a direction parallel to the mounting surface.

10. The transfer device for making a mold for a car crash dummy skin according to claim 9, characterized in that, The first transfer assembly (200) further includes: A rotating support (203) is disposed on the movable plate (201); The third moving unit (204) has a third rotary drive end, the rotation axis of which is perpendicular to the mounting surface; one end of the third rotary drive end is connected to the rotary support (203).

11. The transfer device for making a mold for a car crash dummy skin according to claim 10, characterized in that, The third moving unit (204) further includes: a telescopic component (205) and a support rod (206); The telescopic member (205) has a connecting end and a telescopic end; the connecting end is fixedly connected to the third rotary drive end through a connecting member, and the telescopic end is hinged to the support rod (206); The support rod (206) is also hinged to the third rotary drive end; the support rod (206) has a third end and a fourth end; the third end is connected to the first rotary drive end; The second counterweight (207) is disposed at the fourth end.

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