Automobile leg rest compression testing device

Abstract

The utility model relates to a kind of automobile leg support compression resistance testing device, including frame, disc body, limit mould, extruder and station switching mechanism, according to corresponding automobile leg support selects suitable limit mould, first pull pull rod and drive to move and resist touch column, resist touch column extrusion spring, resist touch column one end and the clamping groove of disc body edge are separated from clamping, can realize the rotation adjustment of disc body, the limit mould required is rotated to the extruder below, disc body rotates on several support ball, the rotation of disc body reduces friction, and column body follows rotation, column body can only rotate, cannot move in vertical direction, under the action of spring, resist touch column arc end is extruded into clamping groove, realize the positioning of disc body, i.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile leg support testing equipment, specifically an automobile leg support pressure resistance testing device. Background Technology

[0002] In the manufacturing process of car leg rests, pressure resistance testing is a crucial step in ensuring product quality. As the automotive market continues to demand higher levels of driving comfort, leg rest designs are becoming increasingly diverse. Leg rests equipped with different car models and configurations vary significantly in shape, size, and materials. For example, leg rests in sports sedans often prioritize support and have unique designs, while leg rests in family MPVs emphasize spaciousness and comfort and are larger in size.

[0003] Existing automotive leg support compression testing devices involve a cumbersome process of changing to the appropriate mold when dealing with different types of leg supports. The molds of traditional testing devices are usually fixedly connected to the test bench. When testing different types of leg supports, operators need to use special tools to gradually disassemble the old mold and then install the new mold. The whole process is time-consuming. Therefore, we need to provide an automotive leg support compression testing device. Utility Model Content

[0004] The purpose of this invention is to provide a car leg support pressure resistance testing device, which has three evenly distributed limiting molds in the disc body, each limiting mold corresponding to a leg support for fixing, and a station switching mechanism that can quickly switch the required limiting mold to the bottom of the extruder for pressure resistance testing, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a car leg support compression testing device, comprising:

[0006] The system comprises a frame, a disc, limiting molds, an extruder, and a station switching mechanism. The disc is rotatably mounted within the frame. The disc contains three evenly distributed limiting molds for fixing three different types of car leg supports. The station switching mechanism is installed within the frame and is used to switch the limiting molds so that the limiting mold used is located below the extruder. The extruder is installed on the top of the frame.

[0007] Preferably, the station switching mechanism includes a column, a plate, a sliding limiter, and a positioning component. The plate is fixed inside the frame, and the column is rotatably installed inside. The top of the column is fixed at the bottom axis of the plate. The sliding limiter is installed on the top of the plate to stabilize the rotation of the plate. The positioning component is installed on the top of the plate to fix the plate so that the limiting mold is located directly below the extruder.

[0008] Preferably, the sliding limiting component includes a base, a support ball, and a limiting seat. All four limiting seats are fixed to the top of the plate. The inner groove of the limiting seat is slidably installed with the outer edge of the disc. Several bases are distributed in a ring on the top of the plate. The support ball is rotatably installed on the top of the base. The bottom of the disc is in contact with the top of the several support balls.

[0009] Preferably, the bottom of the disc body is provided with an annular groove that is adapted to a plurality of supporting balls.

[0010] Preferably, the positioning component includes a slot, a contact post, a sleeve, and an elastic element. The sleeve is fixedly installed on the top of the plate, and the contact post is slidably installed on one side of the sleeve. An elastic element is provided inside to press the contact post. The three slots are evenly distributed on the outer edge of the plate, and the three slots correspond to three limiting molds.

[0011] Preferably, the elastic element includes a spring and a pull rod. The spring is installed between the inner wall of the sleeve and the abutting post. The pull rod is movably sleeved inside the sleeve. One end of the pull rod is fixed to one side of the abutting post, and the other end passes through the surface of the sleeve and extends outward. The slot engages with the arc-shaped surface of one end of the abutting post.

[0012] Preferably, the limiting mold is detachably connected to the disc body.

[0013] Preferably, the limiting mold includes a frame, a fixed clamping plate, a movable clamping plate, and an adjusting component. The frame is installed inside the disc, and the fixed clamping plate is fixedly installed on the top. The adjusting component is installed inside the frame and is used to adjust the movement of the movable clamping plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features three evenly distributed limiting molds within the disc body, each corresponding to a specific type of leg support for fixation. A station switching mechanism allows for rapid switching of the required limiting mold to the bottom of the extruder for pressure testing. The three evenly distributed limiting molds, corresponding to three different leg supports, combined with the station switching mechanism, enable rapid transfer of the desired mold to the extruder, significantly reducing mold change time during different types of leg support tests and improving testing efficiency. The sliding limiting component and positioning assembly ensure stable disc rotation and precise positioning, ensuring the mold is accurately positioned directly below the extruder after switching, guaranteeing testing accuracy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0018] Figure 3 This is a perspective view of the elastic element of this utility model;

[0019] Figure 4 This is a perspective view of the sliding limiting component of this utility model;

[0020] Figure 5 This is a three-dimensional view of the limiting mold of this utility model.

[0021] In the diagram: 1. Frame; 2. Disc; 3. Limiting mold; 31. Frame; 32. Fixed clamping plate; 33. Movable clamping plate; 34. Adjusting component; 4. Extruder; 5. Station switching mechanism; 51. Column; 52. Plate; 53. Sliding limiting component; 531. Base; 532. Support ball; 533. Limiting seat; 54. Positioning component; 541. Slot; 542. Abutting column; 543. Sleeve; 544. Elastic component; 5441. Spring; 5442. Pull rod; 6. Annular groove. Detailed Implementation

[0022] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a car leg support compression testing device, comprising:

[0024] The frame consists of a frame 1, a disc 2, a limiting mold 3, an extruder 4, and a station switching mechanism 5. The disc 2 is rotatably installed inside the frame 1. The disc 2 has three evenly distributed limiting molds 3 inside the disc 2. The three limiting molds 3 are used to fix three different types of car leg supports. The station switching mechanism 5 is installed inside the frame 1 and is used to switch the limiting molds 3 so that the limiting molds 3 used are located below the extruder 4. The extruder 4 is installed on the top of the frame 1.

[0025] Specifically, three evenly distributed limiting molds 3 are provided inside the disc body 2. Each limiting mold 3 corresponds to a type of leg support for fixing. A station switching mechanism 5 is provided, which can quickly switch the required limiting mold 3 to the bottom of the extruder 4 for pressure resistance testing. The three evenly distributed limiting molds 3 correspond to three types of leg supports. With the station switching mechanism 5, the required mold can be quickly rotated to the bottom of the extruder 4, which greatly shortens the mold changing time when testing different types of leg supports and improves testing efficiency. The sliding limiting component 53 and the positioning component 54 ensure that the disc body 2 rotates stably and is accurately positioned, so that the mold can be accurately positioned directly under the extruder 4 after switching, ensuring testing accuracy. The limiting mold 3 is detachable, which is convenient for replacement and maintenance, and can adapt to more types of leg supports, enhancing the versatility of the device.

[0026] The workstation switching mechanism 5 includes a column 51, a plate 52, a sliding limiter 53, and a positioning component 54. The plate 52 is fixed inside the frame 1, and the column 51 is rotatably installed inside it. The top of the column 51 is fixed at the bottom axis of the disc 2. The sliding limiter 53 is installed on the top of the plate 52 to stabilize the rotation of the disc 2. The positioning component 54 is installed on the top of the plate 52 to fix the disc 2 so that the limiting mold 3 is located directly below the extruder 4.

[0027] Furthermore, the plate 52 is fixed inside the frame 1 by welding or high-strength bolts, providing a stable support foundation for the entire workstation switching mechanism 5. The column 51 is made of high-strength alloy steel and undergoes internal heat treatment to enhance its wear resistance and fatigue strength. The column 51 is rotatably installed inside the plate 52 by high-precision bearings to ensure smooth rotation and low friction. The top of the column 51 is connected to the bottom axis of the disc 2 by a key, which ensures that the disc 2 rotates synchronously with the column 51 and transmits torque stably, avoiding relative slippage.

[0028] The sliding limit component 53 is installed on the top of the plate 52 and plays a stabilizing role when the disc 2 rotates. The positioning component 54 is installed on the top of the plate 52 and its function is to accurately fix the disc 2 so that the limiting mold 3 can be accurately positioned directly below the extruder 4. In actual operation, when it is necessary to switch the limiting mold 3, the operator manually drives the disc 2 to rotate, which drives the column 51 to rotate in the plate 52. The sliding limit component 53 ensures the smoothness of the rotation of the disc 2. When the required limiting mold 3 rotates to directly below the extruder 4, the positioning component 54 quickly acts to lock the disc 2, ensuring that the disc 2 will not be displaced during the test, thereby ensuring the accuracy of the test. This solves the problems of difficult mold switching and inaccurate positioning in traditional testing devices and greatly improves the testing efficiency and accuracy.

[0029] The sliding limit component 53 includes a base 531, a support ball 532 and a limit seat 533. All four limit seats 533 are fixed to the top of the plate 52. The groove inside the limit seat 533 is slidably installed with the outer edge of the disc 2. Several bases 531 are distributed in a ring on the top of the plate 52. The support ball 532 is rotatably installed on the top of the base 531. The bottom of the disc 2 is in contact with the top of the several support balls 532.

[0030] It is worth noting that the four limit seats 533 are made of aluminum alloy and are fixed to the top of the plate 52 with screws. Aluminum alloy is lightweight, high-strength, and corrosion-resistant, which can reduce the overall weight of the device while ensuring structural stability. The grooves inside the limit seats 533 are precision machined, and their dimensions are precisely matched with the outer edge of the disc 2 to achieve sliding installation. The surface of the grooves is polished to reduce the coefficient of friction with the outer edge of the disc 2 and ensure that the disc 2 rotates smoothly. Several bases 531 are distributed in a ring on the top of the plate 52. The bases 531 are made of stainless steel and have good rust resistance. Support balls 532 are rotatably installed on their tops by inlay. The support balls 532 are made of high-hardness bearing steel and have a highly polished surface. The bottom of the disc 2 is in contact with the top of several support balls 532. This structural design allows the support balls 532 to roll flexibly on the base 531 when the disc 2 rotates, greatly reducing the friction of the disc 2 rotation. At the same time, the limiting seat 533 restricts the displacement of the disc 2 from the side, ensuring the stability of the disc 2 rotation. In practical applications, when the disc 2 rotates under the drive of the station switching mechanism 5, the support balls 532 roll to support the disc 2, and the limiting seat 533 ensures that the disc 2 will not deviate radially, making the entire rotation process of the disc 2 smooth and precise, providing a strong guarantee for the accurate switching of the limiting mold 3.

[0031] The bottom of the disc body 2 is provided with an annular groove 6 that is adapted to several support balls 532;

[0032] The annular groove 6 is slightly wider than the diameter of the support ball 532, ensuring good contact between the support ball 532 and the annular groove 6 while allowing the support ball 532 some room to move within the groove. This better accommodates the rotation of the disc 2. During the rotation of the disc 2, the support ball 532 rolls within the annular groove 6, creating rolling friction between them. Compared to sliding friction, this significantly reduces energy loss and component wear. This well-matched structural design enhances the support stability of the support ball 532 on the disc 2, ensuring that the disc 2 remains horizontal during rotation and preventing tilting or wobbling. This, in turn, ensures the positional accuracy of the limiting mold 3 during the switching process.

[0033] The positioning component 54 includes a slot 541, a contact post 542, a sleeve 543, and an elastic element 544. The sleeve 543 is fixedly installed on the top of the plate 52, and the contact post 542 is slidably installed on one side of the sleeve 543. An elastic element 544 is provided inside to press the contact post 542. The three slots 541 are evenly distributed on the outer edge of the disc 2, and the three slots 541 correspond to the three limiting molds 3.

[0034] It should be noted that a sleeve 543 is fixedly installed on the top of the plate 52 by welding. The sleeve 543 is made of stainless steel, which has good strength and corrosion resistance. The abutment post 542 can only move in a straight line to ensure accurate positioning. Three slots 541 are evenly distributed on the outer edge of the disc 2, and the positions of the slots 541 correspond precisely to the three limiting molds 3. When the disc 2 rotates, the operator pulls the abutment post 542 to move it outward against the force of the elastic element 544. At this time, one end of the abutment post 542 disengages from the slot 541 on the edge of the disc 2, and the disc 2 can rotate freely. When the required limiting mold 3 rotates to below the extruder 4, the abutment post 542 is released. Under the action of the elastic element 544, the abutment post 542 quickly rebounds, and the arc-shaped surface at one end tightly engages with the slot 541, thus achieving the positioning of the disc 2.

[0035] The elastic element 544 includes a spring 5441 and a pull rod 5442. The spring 5441 is installed between the inner wall of the sleeve 543 and the abutting post 542. The pull rod 5442 is movably sleeved inside. One end of the pull rod 5442 is fixed to one side of the abutting post 542, and the other end passes through the surface of the sleeve 543 and extends. The slot 541 engages with the arc-shaped surface of one end of the abutting post 542.

[0036] Furthermore, spring 5441 is made of high-strength alloy spring steel 5441, and undergoes a rigorous heat treatment process, resulting in a stable and durable elastic coefficient. Spring 5441 is installed between the inner wall of sleeve 543 and the contact post 542, with a pull rod 5442 movably connected inside. The pull rod 5442 is made of 40Cr alloy steel, heat-treated, and possesses excellent comprehensive mechanical properties. One end of the pull rod 5442 is fixed to one side of the contact post 542 by welding or threaded connection, while the other end penetrates the surface of sleeve 543 and extends to the outside, facilitating manual pulling by the operator. The slot 541 engages with the arc-shaped surface of one end of the contact post 542. The arc-shaped surface is polished, ensuring high precision in its fit with the slot 541, effectively preventing the disc 2 from loosening during testing. In actual operation, when it is necessary to rotate the disc 2 to switch the limiting mold 3, the operator pulls the pull rod 5442. The pull rod 5442 drives the abutment post 542 to move, and the abutment post 542 compresses the spring 5441, causing the spring 5441 to undergo elastic deformation and store energy. When the disc 2 rotates to the required position, the pull rod 5442 is released, the spring 5441 releases the stored energy, and pushes the abutment post 542 to reset. The arc-shaped end of the abutment post 542 accurately engages in the slot 541, achieving a firm positioning of the disc 2. This design of the elastic element 544 not only ensures the rapid response and reliable operation of the positioning component 54, but also makes the operation more convenient for the operator.

[0037] The limiting mold 3 is detachably connected to the disc body 2;

[0038] The limiting mold 3 is detachably connected to the disc body 2 via a threaded connection. Threaded holes are machined on the disc body 2 corresponding to the position of each limiting mold 3, and matching threaded holes are also machined on the bottom of the frame 31 of the limiting mold 3. The limiting mold 3 and the disc body 2 are securely connected using high-strength bolts. This connection method allows for convenient and quick installation and disassembly. In practical applications, when it is necessary to replace the limiting mold 3 with a different type to adapt to a new car leg support, the operator only needs to use a wrench to unscrew the bolts to remove the old limiting mold 3, and then install the new, compatible limiting mold 3 onto the disc body 2 using bolts.

[0039] The limiting mold 3 includes a frame 31, a fixed clamping plate 32, a movable clamping plate 33, and an adjusting component 34. The frame 31 is installed inside the disc body 2, and the fixed clamping plate 32 is fixedly installed on the top. The adjusting component 34 is installed inside the frame 31 and is used to move and adjust the movable clamping plate 33.

[0040] Specifically, the frame 31 is made of aluminum alloy and is installed inside the disc 2 via a threaded connection. Aluminum alloy is lightweight and high-strength, ensuring structural stability while reducing the overall weight of the device. A fixing plate 32 is installed on the top of the frame 31 via welding or screws. The fixing plate 32 is made of rubber, possessing good flexibility and friction, preventing damage to the leg support surface when fixing it, and providing sufficient friction to prevent the leg support from sliding. An adjusting component 34 is installed inside the frame 31 to adjust the movement of the movable clamp 33. The adjusting component 34 includes a groove, a handwheel, a threaded rod, and a protective plate. The groove is machined inside the frame 31, and the threaded rod is rotatably installed in the groove via a bearing. The surface of the threaded rod is threaded into the movable clamp 33. When the handwheel is turned, it drives the threaded rod to rotate. Due to the threaded engagement between the threaded rod and the movable clamp 33, the movable clamp 33 moves along the axial direction of the threaded rod, thereby achieving the clamping or loosening operation of the leg support. The threaded rod adopts a trapezoidal thread with a self-locking function. When the leg support is clamped, the threaded rod can automatically lock to prevent the movable clamping plate 33 from moving due to external force, ensuring that the leg support is firmly fixed. The top of the threaded rod is equipped with a protective plate made of plastic, which is fixed to the frame 31 by the slot 541 or screws. The surface of the protective plate is slidably installed in the movable clamping plate 33. Its function is to protect the threaded rod and prevent dust and debris from falling into the thread gap and affecting the normal rotation of the threaded rod. Since a support plate is fixedly installed on the surface of the movable clamping plate 33, and the bottom of the support plate is in contact with the top of the disc 2, the support plate can play an auxiliary support role when fixing the leg support, enhancing the fixing effect of the movable clamping plate 33 on the leg support, making the leg support more stable during the test.

[0041] The hydraulic rod and pressure sensor in the extruder 4 involved in this application are implemented using existing mature technologies and are connected to an external PLC controller and power supply. This is a conventional technical means in this field, so the specific circuit connection, control logic and working process will not be described in detail.

[0042] This device selects a suitable limiting mold 3 according to the corresponding car leg support. First, pulling the pull rod 5442 moves the abutment column 542. The abutment column 542 compresses the spring 5441, and one end of the abutment column 542 disengages from the slot 541 on the edge of the disc 2, which can realize the rotation adjustment of the disc 2. The required limiting mold 3 is rotated to the bottom of the extruder 4. The disc 2 rotates on several support balls 532, which reduces the friction of the disc 2 rotation. The column 51 follows the rotation. The column 51 can only rotate and cannot move vertically. Under the action of the spring 5441, the arc end of the abutment column 542 is pressed into the slot 541, realizing the positioning of the disc 2, that is, the required limiting mold 3 is located below the extruder 4. The adjusting component 34 in the frame 31 includes a groove, a handwheel, a threaded rod and a guard plate. The threaded rod is rotatably installed in the groove and its surface is flush with the movable clamping plate. The internal thread of the 33 is installed, and the handwheel is fixed to the surface of the threaded rod. Turning the handwheel can drive the threaded rod to rotate, thereby moving the movable clamping plate 33 and fixing the leg support between the fixed clamping plate 32 and the movable clamping plate 33. The threaded rod has a self-locking function, and a protective plate is provided on the top of the threaded rod to protect it and prevent dust from falling. The surface of the protective plate is slidably installed inside the movable clamping plate 33. Since a support plate is fixedly installed on the surface of the movable clamping plate 33, the bottom of the support plate is attached to the top of the disc 2 to provide auxiliary support. The extruder 4 includes a hydraulic rod, a pressure sensor, and a bonding plate. The hydraulic rod is fixed to the top of the frame 1, and the bonding plate is installed at the output end through the pressure sensor. When the hydraulic rod is started, it drives the bonding plate to move down, extruding the car leg support. The pressure sensor data is reflected on the recording table at the extension end of the hydraulic rod. The frame 31 is fixed inside the disc 2 by threads, and the entire limiting mold 3 can be replaced.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle leg support compression resistance testing device, characterized in that, include: The frame (1), disc (2), limiting mold (3), extruder (4) and station switching mechanism (5) are provided. The disc (2) is rotatably installed inside the frame (1). Three limiting molds (3) are evenly distributed inside the disc (2). The three limiting molds (3) are used to fix three different types of car leg supports. The station switching mechanism (5) is installed inside the frame (1) and is used to switch the limiting molds (3) so that the limiting molds (3) used are located below the extruder (4). The extruder (4) is installed on the top of the frame (1).

2. The automobile leg support compression testing device according to claim 1, characterized in that: The workstation switching mechanism (5) includes a column (51), a plate (52), a sliding limiter (53), and a positioning component (54). The plate (52) is fixed inside the frame (1), and the column (51) is rotatably installed inside. The top of the column (51) is fixed at the bottom axis of the disc (2). The sliding limiter (53) is installed on the top of the plate (52) to stabilize the rotation of the disc (2). The positioning component (54) is installed on the top of the plate (52) to fix the disc (2) so that the limiting mold (3) is located directly below the extruder (4).

3. The automobile leg support compression testing device according to claim 2, characterized in that: The sliding limiting component (53) includes a base (531), a support ball (532), and a limiting seat (533). The four limiting seats (533) are all fixed on the top of the plate (52). The groove inside the limiting seat (533) is slidably installed with the outer edge of the disc (2). Several bases (531) are distributed in a ring on the top of the plate (52). The support ball (532) is rotatably installed on the top of the base (531). The bottom of the disc (2) is in contact with the top of the several support balls (532).

4. The automobile leg support compression testing device according to claim 3, characterized in that: The bottom of the disc (2) is provided with an annular groove (6) that is adapted to several supporting balls (532).

5. The automobile leg support compression testing device according to claim 2, characterized in that: The positioning component (54) includes a slot (541), a contact post (542), a sleeve (543), and an elastic element (544). The sleeve (543) is fixedly installed on the top of the plate (52). The contact post (542) is slidably installed on one side of the sleeve (543). An elastic element (544) is provided inside to press the contact post (542). The three slots (541) are evenly distributed on the outer edge of the disc (2), and the three slots (541) correspond to the three limiting molds (3).

6. The automobile leg support compression testing device according to claim 5, characterized in that: The elastic element (544) includes a spring (5441) and a pull rod (5442). The spring (5441) is installed between the inner wall of the sleeve (543) and the abutment post (542). The pull rod (5442) is movably sleeved inside. One end of the pull rod (5442) is fixed to one side of the abutment post (542), and the other end passes through the surface of the sleeve (543) and extends. The slot (541) engages with the arc-shaped surface of one end of the abutment post (542).

7. The automobile leg support compression testing device according to claim 1, characterized in that: The limiting mold (3) is detachably connected to the disc body (2).

8. The automobile leg support compression testing device according to claim 7, characterized in that: The limiting mold (3) includes a frame (31), a fixed clamping plate (32), a movable clamping plate (33), and an adjusting component (34). The frame (31) is installed inside the disc (2), and the fixed clamping plate (32) is fixedly installed on the top. The adjusting component (34) is installed inside the frame (31) and is used to adjust the movement of the movable clamping plate (33).

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