A multi-point correction device for aluminum alloy rear longitudinal beams of new energy vehicle chassis

Abstract

The present invention discloses a multi-point correction device for an aluminum alloy rear longitudinal beam of a new energy vehicle chassis. The device comprises a main frame, a clamping device is provided below the main frame, and sliding measurement mechanisms are installed on the top and one side of the main frame. The sliding measurement mechanism comprises a loading mechanism platform, a feeding device is fixedly installed on the loading mechanism platform, and a loading mechanism body is connected to the feeding device. The loading mechanism body comprises a loading cylinder, a loading impact body is fixed at the bottom of the loading cylinder, an upper retaining ring and a lower retaining ring are fixedly installed on the loading cylinder, and a connecting block is fixedly installed between the upper and lower retaining rings on the loading cylinder. The device can detect deformation at multiple points on the rear longitudinal beam of the vehicle through a sensor group, and then perform loading correction. The magnitude of the loading force can be changed to achieve multi-point correction, thereby improving correction efficiency.

Description

Technical Field

[0001] The present invention relates to the field of quality monitoring of die-cast aluminum alloy rear longitudinal beams of new energy vehicles, and in particular to a multi-point correction device for aluminum alloy rear longitudinal beams of a new energy vehicle chassis. Background Art

[0002] The vehicle frame is the most important load-bearing component in a car, and the longitudinal beam is one of its key components. Therefore, the longitudinal beam plays a vital load-bearing role in the car. Both side beam and center beam frames contain longitudinal beams. Longitudinal beams are typically stamped from low-alloy steel sheets, with a typical groove-shaped cross-section, though some also feature Z-shaped or box-shaped cross-sections. Longitudinal beams are located in an area of the vehicle body that is particularly sensitive to performance requirements, placing high demands on all aspects of their performance. Consequently, deformation correction is required after the longitudinal beams are produced and processed. Due to the complex shape and large size of longitudinal beams, traditional manual measurement methods are laborious and difficult to secure, making direct measurement and loading inconvenient. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a multi-point correction device for the aluminum alloy rear longitudinal beam of the new energy vehicle chassis, which has the advantages of convenient measurement, simple operation and high correction efficiency, and solves the problems of difficult manual measurement, low measurement efficiency and difficulty in correction in the existing correction method.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-point correction device for an aluminum alloy rear longitudinal beam of a new energy vehicle chassis, comprising a main frame, a clamping device is provided below the main frame, and a sliding measuring mechanism is installed on the top and one side of the main frame;

[0005] The sliding measurement mechanism includes a loading mechanism carrier, a feeding device is fixedly mounted on the loading mechanism carrier, and the feeding device is connected to the loading mechanism body;

[0006] The loading mechanism body includes a loading cylinder, a loading impact body is fixed to the bottom end of the loading cylinder, an upper retaining ring and a lower retaining ring are fixedly installed on the loading cylinder, and a connecting block is fixedly installed between the upper retaining ring and the lower retaining ring on the loading cylinder;

[0007] The loading cylinder includes a sleeve body, and a sensor group is fixedly installed on the side surface of the lower end of the sleeve body.

[0008] It is further defined that the main frame includes a frame body, an upper slide rail is fixedly installed on the upper surface of the frame body, a side slide rail is fixedly installed on one side surface of the frame body, and a main slide rail is arranged below the frame body.

[0009] It is further defined that the frame body includes two side frames, a top frame is fixedly installed above the two side frames, and a slide rail motor 1 that cooperates with the main slide rail is provided at the bottom of the side of the side frame.

[0010] It is further defined that the loading mechanism platform includes a platform body, and a slide rail motor 2 is provided on one side of the platform body to cooperate with the side slide rail or the upper slide rail. A platform slide groove is fixedly installed on the bottom of the platform body, and the platform slide groove is slidably connected to the side slide rail or the upper slide rail. A platform fixing device is fixedly installed on the side of the platform body, and the platform fixing device is slidably sleeved on the side frame / top frame.

[0011] It is further defined that the feeding device includes two side columns fixed on the carrier body, an upper baffle is fixedly installed between the top ends of the two side columns, a fixed sleeve is provided in the middle of the bottom surface of the upper baffle, a hydraulic cylinder is fixedly installed on the inner side of the side column, and the piston rod of the hydraulic cylinder is fixed to the connecting block.

[0012] It is further defined that the clamping device includes a clamping table, and a limiting column 1 and a limiting column 2 are fixedly installed on the left and right sides of the upper surface of the clamping table respectively, a limiting main board is provided on one side of the limiting column 1, and a supporting platform is fixedly installed in the middle position of the upper surface of the clamping table, and a clamping mechanism is provided on one side of the supporting platform.

[0013] It is further defined that a shock-absorbing pad is provided on the inner side surface of the limiting mainboard.

[0014] It is further defined that the clamping mechanism includes a stand, an adjusting slide is provided on the top of the stand, and a clamping plate is slidably connected above the adjusting slide.

[0015] It is further defined that the clamping plate includes a bottom clamping plate, a sliding rail at the bottom of the bottom clamping plate is slidably connected to the adjustment slide groove, and an upper clamping plate is installed above the bottom clamping plate through a locking bolt and a locking nut.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention proposes a multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis. A sliding measuring mechanism is provided on the main frame. The main frame is slidable, and the sliding measuring mechanism on the main frame can be driven to move by a second slide rail motor. The device can detect deformation of multiple points on the rear longitudinal beam of the vehicle through a sensor group, and then perform loading correction. The loading force can be changed to obtain multi-point correction and improve the correction efficiency.

[0018] 2. The present invention proposes a multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis, which is provided with a loading mechanism main body and controlled by a PLC. The area to be corrected can be pre-set before measurement. After the loading mechanism main body reaches the position to be detected, deformation detection can be performed through the sensor group, and then the hydraulic cylinder is controlled to advance the loading mechanism main body, and loading work is performed after reaching the corresponding position.

[0019] 3. The present invention proposes a multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis. A plurality of limit columns are arranged on the clamp device. A limit main board is also provided to fix the position of the rear longitudinal beam of the vehicle. A shock-absorbing pad is provided on the limit main board to limit the displacement of the longitudinal beam. A clamping mechanism is provided on the clamp table. The longitudinal beam can be completely fixed by sliding the clamping mechanism to the corresponding position and tightening the locking bolt, thereby improving the accuracy of detection and correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the frame structure of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the sliding measurement mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the main structure of the loading mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the loading mechanism platform structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the installation of the longitudinal beam of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the clamp device of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the clamping mechanism of the present invention.

[0028] In the figure: 1. Main frame; 11. Frame; 111. Side frame; 112. Top frame; 113. Slide rail motor 1; 12. Upper slide rail; 13. Side slide rail; 14. Main slide rail; 2. Sliding measuring mechanism; 21. Loading mechanism platform; 211. Platform body; 212. Slide rail motor 2; 213. Platform slideway; 214. Platform fixing device; 22. Loading mechanism body; 221. Loading cylinder; 2211. Sleeve body; 2212. Sensor group; 222. Loading impact body; 223. Upper retaining ring; 224. Lower retaining ring; 225. Connecting block; 23. Feeding device; 231. Side column; 232. Upper baffle; 233. Fixed sleeve; 234. Hydraulic cylinder; 3. Clamping device; 31. Clamping table; 32. Limiting column 1; 33. Limiting column 2; 34. Limiting main board; 341. Shock-absorbing pad; 35. Loading table; 36. Clamping mechanism; 361. Vertical table; 362. Adjusting slide; 363. Clamping plate; 3631. Bottom clamping plate; 3632. Sliding rail; 3633. Upper clamping plate; 3634. Locking bolt; 3635. Locking nut. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See Figure 1-8 A multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis includes a main frame 1, a sliding measuring mechanism 2 is slidably installed on the top and one side of the main frame 1, a clamping device 3 is provided below the main frame 1, the main frame 1 includes a frame body 11, the frame body 11 includes two side frames 111, wherein the side of one side frame 111 is provided with a side slide rail 13, the top of the side frame 111 is fixed with a top frame 112, the upper surface of the top frame 112 is provided with an upper slide rail 12, and the bottom of the frame body 11 is connected to the main slide rail 14 through a slide rail motor 113;

[0031] During use, under the control of the PLC, the frame 11 will be driven to the corresponding position along the main slide rail 14 by the slide motor 113, and the sliding measuring mechanism 2 above and on the side of the frame 11 will continuously move along the upper slide rail 12 and the side slide rail 13 respectively to perform multiple deformation detections and load corrections.

[0032] See Figure 3-5The sliding measuring mechanism 2 includes a loading mechanism carrier 21, the loading mechanism carrier 21 is connected to the loading mechanism body 22, a feeding device 23 is fixedly installed on the loading mechanism carrier 21, the loading mechanism carrier 21 includes a carrier body 211, the bottom of the carrier body 211 is provided with a slide rail motor 212, which is used to match the upper slide rail 12 or the side slide rail 13, the carrier groove 213 at the bottom of the carrier body 211 is slidably sleeved with the upper slide rail 12 or the side slide rail 13, and the carrier body The platform fixing device 214 on the side of 211 is slidably connected with the top frame 112 or the side frame 111 to achieve limiting. The slide rail motor 212 is fixedly connected to the side of the platform slide groove 213. The slide rail motor 2 is slidably connected with the side slide rail 13 and the upper slide rail 12. The two slide with each other. The platform slide groove 213 is in frictional contact with the surface of the side slide rail 13 and the upper slide rail 12; the slide rail motor 212 drives the platform slide groove 213 to slide on the side slide rail 13 and the upper slide rail 12.

[0033] The loading mechanism body 22 includes a loading cylinder 221, a loading impact body 222 is fixed to the bottom end of the loading cylinder 221, a connecting block 225 is fixed to the loading cylinder 221 via an upper retaining ring 223 and a lower retaining ring 224, and a sensor group 2212 is fixedly mounted on the side surface of the lower end of the sleeve body 2211 of the loading cylinder 221;

[0034] The feeding device 23 includes side columns 231 installed on both sides of the through groove of the loading mechanism carrier 21. An upper baffle 232 is fixed between the top ends of the side columns 231. A fixed sleeve 233 is provided in the middle of the bottom surface of the upper baffle 232, which is socketed with the upper end of the loading mechanism main body 22 below to fix the path of the loading mechanism main body 22 to a certain extent to prevent deflection. The path is along the axial direction of the fixed sleeve.

[0035] Hydraulic cylinders 234 are fixedly installed on both sides of the bottom surface of the side column 231 , and the bottom ends of the hydraulic cylinders 234 are connected to the connecting blocks 225 .

[0036] During use, after the main frame 1 and the sliding measuring mechanism 2 reach the relative position, under the control of the PLC, the sensor group 2212 detects the position and determines whether the position is deformed by comparison. If so, the hydraulic cylinder 234 starts working to bring the loading mechanism body 22 to the specified position. The sensor group 2212 will feedback when reaching the position and make the hydraulic cylinder 234 stop. Then the loading mechanism body 22 will load the specimen with a predetermined loading force and determine the loading deformation through the sensor group 2212. After completion, the hydraulic cylinder 234 will drive the loading mechanism body 22 to retreat.

[0037] See Figure 6-8The fixture device 3 includes a fixture table 31, and a limit column 1 32 and a limit column 2 33 are fixedly installed on the left and right sides of the upper surface of the fixture table 31. A limit mainboard 34 is provided on one side of the limit column 1 32. A bearing platform 35 is fixedly installed in the middle position of the upper surface of the fixture table 31. A clamping mechanism 36 is provided on one side of the bearing platform 35. A shock-absorbing pad 341 is provided on one side of the limit mainboard 34. The clamping mechanism 36 includes a vertical platform 361, and a vertical platform 361 is fixed on the top of the vertical platform The adjusting slot 362 is provided with a clamping plate 363 above the adjusting slot 362. The clamping plate 363 includes a bottom clamping plate 3631, a sliding rail 3632 being fixedly mounted on the bottom of the bottom clamping plate 3631, an upper clamping plate 3633 being provided above the bottom clamping plate 3631, a locking bolt 3634 being provided on one side of the upper clamping plate 3633, a locking nut 3635 being fixedly mounted on the bottom clamping plate 3631, and the locking bolt 3634 and the locking nut 3635 being interconnected. During use, the rear longitudinal beam of the vehicle needs to be placed into the clamping device 3 without the main frame 1 being placed on the clamping device 3, and then aligned with the limiting column 1 32, the limiting column 2 33 and the supporting platform 35. Then, the clamping plate 363 on the clamping mechanism 36 needs to be moved to the corresponding position, and the locking nut 3635 needs to be tightened to complete the fixing of the rear longitudinal beam of the vehicle.

[0038] Working principle: Each measurement step of the device needs to be pre-set on the PLC. When in use, the main frame 1 needs to be withdrawn from the working position, the rear longitudinal beam of the car needs to be installed on the corresponding position of the clamp device 3, and the limit column 1 32, the limit column 2 33 and the bearing platform 35 are aligned and placed. Then, the clamping plate 363 on the clamping mechanism 36 is moved to the corresponding position, and the locking nut 3635 is tightened to completely fix the measured component. Then, under the control of the PLC, the main frame 1 will be driven by the slide motor 113 to move to the corresponding position, and the sliding measuring mechanism 2 above and on the side of the frame 11 of the main frame 1 will respectively move along the upper slide rail 12 and The side slide rail 13 moves to the set position. After the main frame 1 and the sliding measuring mechanism 2 reach the relative position, under the control of the PLC, the sensor group 2212 detects the position and determines whether the position is deformed by comparison. If so, the hydraulic cylinder 234 starts working to bring the loading mechanism body 22 to the specified position. The sensor group 2212 will feedback when reaching the position and make the hydraulic cylinder 234 stop. Then the loading mechanism body 22 will load the specimen with a predetermined loading force, and detect whether it is corrected to the predetermined position through the sensor group 2212. After completion, the hydraulic cylinder 234 will drive the loading mechanism body 22 to retreat.

[0039] Among them, the moving distance data of the main frame 1 and the sliding measuring mechanism 2 set by the PLC need to be set in multiple groups, and the data of the sensor group 2212 corresponding to these distances also need to correspond one to one. After these data are set in advance, the actual distance and the set distance can be compared at the corresponding position. If there is deformation, the rear longitudinal beam of the car can be subjected to multi-point detection and loaded correction, which improves the correction efficiency.

[0040] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis, including a main frame, characterized by: A clamping device is provided below the main frame, and a sliding measuring mechanism is installed on the top and one side of the main frame; The sliding measurement mechanism includes a loading mechanism carrier, a feeding device is fixedly mounted on the loading mechanism carrier, and the feeding device is connected to the loading mechanism body; The loading mechanism body includes a loading cylinder, a loading impact body is fixed to the bottom end of the loading cylinder, an upper retaining ring and a lower retaining ring are fixedly installed on the loading cylinder, and a connecting block is fixedly installed between the upper retaining ring and the lower retaining ring on the loading cylinder; The loading cylinder includes a sleeve body, and a sensor group is fixedly installed on the side surface of the lower end of the sleeve body.

2. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 1 is characterized in that: The main frame includes a frame body, an upper slide rail is fixedly installed on the upper surface of the frame body, a side slide rail is fixedly installed on one side surface of the frame body, and a main slide rail is arranged under the frame body.

3. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 2 is characterized in that: The frame body includes two side frames, a top frame is fixedly installed above the two side frames, and a slide rail motor 1 that cooperates with the main slide rail is provided at the bottom of the side of the side frame.

4. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 3 is characterized in that: The loading mechanism platform includes a platform body, and a slide rail motor 2 is provided on one side of the platform body to cooperate with the side slide rail or the upper slide rail. A platform slide groove is fixedly installed on the bottom of the platform body, and the platform slide groove is slidably connected to the side slide rail or the upper slide rail. A platform fixing device is fixedly installed on the side of the platform body, and the platform fixing device is slidably sleeved on the side frame / top frame.

5. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 4 is characterized in that: The feeding device includes two side columns fixed on the carrier body, an upper baffle is fixedly installed between the top ends of the two side columns, a fixed sleeve is provided in the middle of the bottom surface of the upper baffle, a hydraulic cylinder is fixedly installed on the inner side of the side column, and the piston rod of the hydraulic cylinder is fixed to the connecting block.

6. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 5 is characterized in that: The clamp device includes a clamp table, and a limit column 1 and a limit column 2 are fixedly installed on the left and right sides of the upper surface of the clamp table respectively. A limit main board is provided on one side of the limit column 1. A bearing platform is fixedly installed in the middle position of the upper surface of the clamp table, and a clamping mechanism is provided on one side of the bearing platform.

7. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 6 is characterized in that: A shock-absorbing pad is provided on the inner side of the limiting mainboard.

8. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 7 is characterized in that: The clamping mechanism includes a stand, a top end of the stand is provided with an adjusting slide, and a clamping plate is slidably connected above the adjusting slide.

9. The multi-point correction device for the aluminum alloy rear longitudinal beam of a new energy vehicle chassis according to claim 8, characterized in that: The clamping plate includes a bottom clamping plate, a sliding rail at the bottom of the bottom clamping plate is slidably connected to the adjusting slide groove, and an upper clamping plate is installed above the bottom clamping plate through a locking bolt and a locking nut.

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