Compression resistance detector for aluminum alloy frame and detection method thereof

Abstract

The invention relates to the technical field of compression resistance detection, in particular to a compression resistance detector for an aluminum alloy frame and a detection method thereof.The compression resistance detector comprises a rack, a plurality of adjusting boxes are arranged below the rack, and the rack is provided with a horizontal position adjusting assembly used for adjusting the positions of the adjusting boxes in the horizontal direction; first supporting shafts are rotationally connected into the adjusting box, a damping synchronous driving assembly used for driving the first supporting shafts to rotate synchronously is installed on the rack, a rotating base is arranged in the adjusting box, a first movable plate is arranged on the side, facing the first supporting shafts, of the rotating base, and an avoiding hole matched with the first movable plate is formed in the inner wall of the adjusting box. The first movable plate is provided with a sliding unit matched with the rotating seat; according to the vehicle frame detection device, multiple positions on a vehicle frame can be detected at the same time, the detection efficiency is improved, long-time pressing detection can be conducted on the vehicle frame, repeated collision detection can also be conducted on the vehicle frame, and the detection application range is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of compressive testing, and particularly relates to a compressive detector for an aluminum alloy vehicle frame and a detection method thereof. Background Art

[0002] The aluminum alloy vehicle frame is a frame structure straddling the front and rear axles of an automobile, commonly known as the main beam, and is supported on the wheels via a suspension device, a front axle, and a rear axle. The aluminum alloy vehicle frame must have sufficient strength and stiffness to withstand the load of the automobile and the impact transmitted from the wheels. In order to ensure the safety of the vehicle, it is necessary to perform compressive testing on the aluminum alloy vehicle frame.

[0003] However, it is worth considering that when the existing aluminum alloy vehicle frames are subjected to compressive testing, generally, a pressing plate is directly pressed on the position of the vehicle frame to be tested. After a period of time, the deformation condition of the vehicle frame is observed, and then the pressing plate is used to press the next position to be tested. The detection efficiency is not high, and there are certain limitations.

[0004] Therefore, in order to solve the above problems, the emergence of a related facility that more meets the usage requirements is needed. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a compressive detector for an aluminum alloy vehicle frame and a detection method thereof to solve the problem of low detection efficiency.

[0006] Based on the above purpose, the present invention provides a compressive detector for an aluminum alloy vehicle frame, including a frame. A plurality of adjustment boxes are arranged below the frame. The frame is equipped with a horizontal position adjustment component for adjusting the horizontal positions of the plurality of adjustment boxes. A first support shaft is rotatably connected inside the adjustment box. The frame is equipped with a damping synchronous drive component for driving the plurality of first support shafts to rotate synchronously. A rotating seat is arranged inside the adjustment box. A first movable plate is arranged on the side of the rotating seat facing the first support shaft. An avoidance hole adapted to the first movable plate is formed on the inner wall of the adjustment box. The first movable plate is equipped with a sliding unit cooperating with the rotating seat. The adjustment box is equipped with an angle adjuster for adjusting the inclination angle of the rotating seat. The first support shaft is equipped with a reciprocating transmission member for driving the first movable plate to slide reciprocally; A first chute is formed at the bottom of the first movable plate. A sliding plate is arranged inside the first chute. The top end of the sliding plate and the inner wall of the first chute are connected by a plurality of first compression springs. The bottom end of the sliding plate is fixedly connected to a pressing plate located below the first movable plate. The first movable plate is equipped with a locking unit for limiting the position of the sliding plate.

[0007] Optionally, the damping synchronous drive assembly includes a first damping disc fixedly installed at the end of the first support shaft. There are several rotating shafts provided below the frame, and the number of rotating shafts is the same as that of the first support shaft. A second damping disc is provided in the adjustment box, and the second damping disc is in contact with the first damping disc. An elastic force adjustment member for adjusting the pressing force on the second damping disc is installed on the rotating shaft, and a drive unit for driving several rotating shafts to rotate is installed on the frame.

[0008] Optionally, the elastic force adjustment member includes a first prism fixedly installed on the second damping disc. A first groove is opened at one end of the rotating shaft facing the second damping disc. One end of the first prism away from the second damping disc is located in the first groove, and the first prism and the inner wall of the first groove are connected by a second compression spring. A first support seat is rotatably sleeved on the outside of the rotating shaft. At least two first lead screws penetrate through the first support seat, and the first lead screws are fixedly connected to the adjustment box. Two first nuts are sleeved on the outside of the first lead screw, and two adjacent first nuts are respectively located on both sides of the first support seat.

[0009] Optionally, the drive unit includes a second support shaft provided at one end of the rotating shaft away from the adjustment box. A second support seat is rotatably sleeved on the outside of the second support shaft. A second groove is opened on the rotating shaft, and a second prism is provided in the second groove, and the second prism is fixedly connected to the second support shaft. A first guide groove is opened at the bottom of the frame. A first guide block is fixedly connected to the top of the second support seat, and the first guide block is located in the first guide groove. The frame is fixedly installed with a motor, and an output end of the motor is fixedly connected with a first bevel gear located below the frame. A second bevel gear meshing with the first bevel gear is fixedly connected to one end of the second support shaft away from the second prism.

[0010] Optionally, the horizontal position adjustment assembly includes a movable seat provided on the top of the adjustment box. A rectangular hole is opened on the movable seat, and a slider is provided in the rectangular hole. The bottom of the slider is fixedly connected to the top of the adjustment box. The top of the slider is fixedly connected with a support plate located above the movable seat, and the bottom of the support plate is in contact with the top of the movable seat. Several second guide grooves are opened on the frame. Second guide blocks are respectively fixedly connected to both ends of the movable seat, and the second guide blocks are located in the corresponding second guide grooves. The frame is installed with a limiting member for limiting the position of the support plate.

[0011] Optionally, the limiting member includes a pressing seat provided above the frame. The top of the support plate is in contact with the bottom of the pressing seat. The frame is fixedly installed with several hydraulic telescopic rods, and the telescopic ends of the hydraulic telescopic rods are fixedly connected to the bottom of the pressing seat.

[0012] Optionally, the angle adjuster includes a connecting shaft fixedly mounted on a rotating seat, the connecting shaft and an adjustment box are rotatably connected, an external fixed sleeve of the connecting shaft is provided with a worm gear, a worm meshing with the worm gear is provided in the adjustment box, an external rotating sleeve of the worm gear is provided with a supporting shell located at the bottom of the adjustment box, and the supporting shell and the bottom of the adjustment box are fixedly connected, a third prism is fixedly connected to the bottom end of the worm gear, an external sliding sleeve of the third prism is provided with a second movable plate, at least two second screw rods are fixedly connected to the bottom of the supporting shell, and two of the second screw rods respectively pass through the two ends of the second movable plate, two second nuts are provided below the second movable plate, and the two second nuts are sleeved on the outside of the corresponding two second screw rods.

[0013] Optionally, the locking unit includes a first supporting part respectively fixedly installed on both sides of the first movable plate, a plug plate passes through the slide plate, and the plug plate passes through the first movable plate, positioning holes are respectively provided at both ends of the plug plate, a positioning column passes through the first supporting part, the bottom end of the positioning column is located in the corresponding positioning hole, the top end of the positioning column is fixedly connected to a fixed plate located above the first supporting part, a tension spring is provided on the outside of the positioning column, and the two ends of the tension spring are respectively fixedly connected to the first supporting part and the fixed plate.

[0014] The insert plate passes through the slide plate and the first movable plate at the same time, and the insert plate limits the position of the slide plate so that the slide plate and the pressing plate are fixed relative to the first movable plate. When the pressing plate contacts the vehicle frame, the pressing plate hits the vehicle frame to detect the strength of the vehicle frame. When the pressing plate needs to continue to press the vehicle frame, the staff drives the fixed plate and the positioning column to move upward, and the tension spring is in a tensioned state to make the bottom end of the positioning column disengage from the positioning hole, thereby releasing the limitation on the position of the insert plate. The staff drives the insert plate to move horizontally so that the insert plate disengages from the slide plate and the first movable plate, and the fixed relationship between the slide plate and the first movable plate can be released. When the pressing plate contacts the vehicle frame, as the first movable plate continues to move downward, the length of the slide plate in the first slide groove increases, and the first compression spring applies pressure to the slide plate and the pressing plate. When the first movable plate drops to the preset position, the pressure applied by the first compression spring to the slide plate and the pressing plate reaches a preset value, which can make the pressing plate maintain the preset pressure to continuously press the vehicle frame.

[0015] Optionally, the reciprocating transmission member includes a second support portion fixedly mounted on the first support shaft, a second slide groove is provided on the side of the first movable plate facing the second support portion, a fixed column is provided in the second slide groove, and the fixed column is fixedly connected to the second support portion, the sliding unit includes a third guide block fixedly mounted on the side of the first movable plate facing the rotating seat, a third guide groove is provided on the rotating seat, and the third guide block is located in the corresponding third guide groove, a stop plate is provided above the first movable plate, and the stop plate and the rotating seat are fixedly connected.

[0016] The present invention also provides a compressive detection method for an aluminum alloy frame, including the compressive detector for an aluminum alloy frame as described above, and comprising the following steps: Step 1: Place the frame under the frame by means of a manipulator, and adjust the position of each adjustment box through the horizontal position adjustment component so that each adjustment box moves to a preset detection position; Step 2: Drive a plurality of first support shafts to rotate synchronously through the damping synchronous drive component; Step 3: The first support shaft drives the first movable plate, the sliding plate and the pressing plate to move downward through the reciprocating transmission member, and the first compression spring applies pressure to the sliding plate and the pressing plate so that the pressure applied by the pressing plate to the frame reaches a preset value; Step 4: When the time for the pressing plate to press the frame reaches a preset value, drive the first support shaft to rotate in the reverse direction through the damping synchronous drive component so that the first support shaft drives the first movable plate and the pressing plate to move up to the initial height through the reciprocating transmission member, and release the pressing on the frame.

[0017] Beneficial effects of the present invention: Adjust the position of each adjustment box through the horizontal position adjustment component so that each adjustment box moves to a preset detection position, drive a plurality of first support shafts to rotate synchronously through the damping synchronous drive component so that the pressure applied by the pressing plate to the frame reaches a preset value, when the time for the pressing plate to press the frame reaches a preset value, drive the first support shaft to rotate in the reverse direction through the damping synchronous drive component to release the pressing on the frame, when it is necessary to repeatedly impact the frame with the pressing plate to detect the strength of the frame, limit the positions of the sliding plate and the pressing plate through the locking unit so that the sliding plate and the pressing plate are fixedly connected relative to the first movable plate, when the first support shaft is driven to rotate through the damping synchronous drive component and the impact force of the pressing plate on the frame reaches a preset value, the damping synchronous drive component drives the first support shaft to rotate in the reverse direction so that the pressing plate resets to the initial height, by periodically driving the first support shaft to rotate forward and backward, the pressing plate can repeatedly impact the frame, multiple positions on the frame can be detected simultaneously, the detection efficiency is improved, the frame can be detected by long-term pressing, and the frame can also be detected by repeated impact, and the applicable range of detection is improved. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only those of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 For the present inventionFigure 1 Schematic diagram of the enlarged structure of area A; Figure 3 Schematic diagram of the structure at the bottom of the rack according to the embodiment of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of area B; Figure 5 Schematic diagram of the structure of the adjustment box according to the embodiment of the present invention; Figure 6 Schematic diagram of the sectional structure of the rotating shaft according to the embodiment of the present invention; Figure 7 Schematic diagram of the sectional structure of the adjustment box according to the embodiment of the present invention; Figure 8 Schematic diagram of the split structure of the fixed column and the second chute according to the embodiment of the present invention; Figure 9 Schematic diagram of the sectional structure of the first movable plate according to the embodiment of the present invention; Figure 10 Schematic diagram of the structure of the angle adjuster according to the embodiment of the present invention.

[0020] The markings in the figure are: 1, rack; 2, adjustment box; 3, rotating shaft; 4, first support shaft; 5, rotating seat; 6, first movable plate; 7, pressing plate; 8, first chute; 9, sliding plate; 10, first compression spring; 11, first damping disc; 12, second damping disc; 13, first groove; 14, first prism; 15, second compression spring; 16, first support seat; 17, first lead screw; 18, first nut; 19, second support shaft; 20, second support seat; 21, second groove; 22, second prism; 23, first guide groove; 24, first guide block; 25, motor; 26, first bevel gear; 27, second bevel gear; 28, movable seat; 29, rectangular hole; 30, slider; 31, support plate; 32, second guide groove; 33, second guide block; 34, pressing seat; 35, hydraulic telescopic rod; 36, connecting shaft; 37, worm gear; 38, worm; 39, support shell; 40, third prism; 41, second movable plate; 42, second lead screw; 43, second nut; 44, first support part; 45, insertion plate; 46, positioning hole; 47, positioning column; 48, fixed disc; 49, tension spring; 50, avoidance hole; 51, fixed column; 52, second support part; 53, second chute; 54, third guide groove; 55, third guide block; 56, stop plate. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments.

[0022] A compression detector for an aluminum alloy frame proposed in this embodiment, as shown in Figure 1 , Figure 5 , Figure 8 and Figure 9 , includes a frame 1. Below the frame 1, there are several adjustment boxes 2. The frame 1 is equipped with a horizontal position adjustment component for adjusting the horizontal positions of several adjustment boxes 2. A first support shaft 4 is rotatably connected inside the adjustment box 2. The frame 1 is equipped with a damping synchronous drive component for driving several first support shafts 4 to rotate synchronously. Inside the adjustment box 2, there is a rotating seat 5. On one side of the rotating seat 5 facing the first support shaft 4, there is a first movable plate 6. An avoidance hole 50 adapted to the first movable plate 6 is opened on the inner wall of the adjustment box 2. The first movable plate 6 is equipped with a sliding unit cooperating with the rotating seat 5. The adjustment box 2 is equipped with an angle adjuster for adjusting the tilt angle of the rotating seat 5. The first support shaft 4 is equipped with a reciprocating transmission member for driving the first movable plate 6 to slide reciprocally; A first chute 8 is opened at the bottom of the first movable plate 6. A sliding plate 9 is arranged inside the first chute 8. The top end of the sliding plate 9 and the inner wall of the first chute 8 are connected by several first compression springs 10. The bottom end of the sliding plate 9 is fixedly connected to a pressing plate 7 located below the first movable plate 6. The first movable plate 6 is equipped with a locking unit for limiting the position of the sliding plate 9. By adjusting the positions of each adjustment box 2 through the horizontal position adjustment component, each adjustment box 2 is moved to a preset detection position. By driving several first support shafts 4 to rotate synchronously through the damping synchronous drive component, the pressure exerted by the pressing plate 7 on the frame reaches a preset value. When the time for the pressing plate 7 to press the frame reaches a preset value, the first support shaft 4 is driven to rotate in the reverse direction through the damping synchronous drive component to release the pressing on the frame. When it is necessary for the pressing plate 7 to repeatedly impact the frame to detect the strength of the frame, the positions of the sliding plate 9 and the pressing plate 7 are limited through the locking unit, so that the sliding plate 9 and the pressing plate 7 are fixedly connected relative to the first movable plate 6. When the first support shaft 4 is driven to rotate through the damping synchronous drive component and the impact force of the pressing plate 7 on the frame reaches a preset value, the damping synchronous drive component drives the first support shaft 4 to rotate in the reverse direction, so that the pressing plate 7 is reset to the initial height. By periodically driving the first support shaft 4 to rotate forward and backward, the pressing plate 7 can repeatedly impact the frame, multiple positions on the frame can be detected simultaneously, the detection efficiency is improved, the frame can be pressed and detected for a long time, and the frame can also be repeatedly impacted and detected, improving the applicable range of detection.

[0023] In some optional specific embodiments, as shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10As shown in the figure, the damping synchronous drive assembly includes a first damping disc 11 fixedly installed at the end of the first support shaft 4. There are several rotating shafts 3 provided below the frame 1, and the number of rotating shafts 3 and the first support shaft 4 is the same. A second damping disc 12 is provided in the adjustment box 2, and the second damping disc 12 is in contact with the first damping disc 11. The rotating shaft 3 is equipped with an elastic force adjustment member for adjusting the pressing force on the second damping disc 12. The frame 1 is equipped with a driving unit for driving several rotating shafts 3 to rotate. The elastic force adjustment member includes a first prism 14 fixedly installed on the second damping disc 12. One end of the rotating shaft 3 facing the second damping disc 12 is provided with a first groove 13. One end of the first prism 14 away from the second damping disc 12 is located in the first groove 13, and the inner wall of the first prism 14 and the first groove 13 are connected by a second compression spring 15. The outer part of the rotating shaft 3 is rotatably sleeved with a first support seat 16. At least two first lead screws 17 penetrate through the first support seat 16. The first lead screws 17 are fixedly connected to the adjustment box 2. The outer part of the first lead screw 17 is sleeved with two first nuts 18, and two adjacent first nuts 18 are respectively located on both sides of the first support seat 16. The driving unit includes a second support shaft 19 provided at one end of the rotating shaft 3 away from the adjustment box 2. The outer part of the second support shaft 19 is rotatably sleeved with a second support seat 20. A second groove 21 is provided on the rotating shaft 3. A second prism 22 is provided in the second groove 21, and the second prism 22 is fixedly connected to the second support shaft 19. A first guide groove 23 is provided at the bottom of the frame 1. The top of the second support seat 20 is fixedly connected with a first guide block 24, and the first guide block 24 is located in the first guide groove 23. The frame 1 is fixedly installed with a motor 25. The output end of the motor 25 is fixedly connected with a first bevel gear 26 located below the frame 1. One end of the second support shaft 19 away from the second prism 22 is fixedly connected with a second bevel gear 27 meshing with the first bevel gear 26; The reciprocating transmission member includes a second support portion 52 fixedly installed on the first support shaft 4. A second chute 53 is provided on one side of the first movable plate 6 facing the second support portion 52. A fixed column 51 is provided in the second chute 53, and the fixed column 51 is fixedly connected to the second support portion 52. The sliding unit includes a third guide block 55 fixedly installed on one side of the first movable plate 6 facing the rotating seat 5. A third guide groove 54 is provided on the rotating seat 5, and the third guide block 55 is located in the corresponding third guide groove 54. A stop plate 56 is provided above the first movable plate 6, and the stop plate 56 is fixedly connected to the rotating seat 5; When the adjustment box 2 moves horizontally relative to the frame 1, the adjustment box 2 can drive the rotating shaft 3 to slide relative to the second prism 22. At the same time, when the adjustment box 2 rotates relative to the frame 1, the adjustment box 2 drives the first guide block 24 to slide in the first guide groove 23 through the rotating shaft 3, the second prism 22 and the second support base 20, and the second bevel gear 27 rolls on the first bevel gear 26. The staff drives the first support base 16 and the rotating shaft 3 to move relative to the adjustment box 2, and the second groove 21 slides relative to the second prism 22, changing the length of the first prism 14 located in the first groove 13, thereby adjusting the length of the second compression spring 15, so as to control the pressure exerted by the second compression spring 15 on the first prism 14 and the second damping disc 12, achieving the purpose of adjusting the friction between the second damping disc 12 and the first damping disc 11. When it is not necessary to adjust the position of the first support base 16, the staff drives two adjacent first nuts 18 to move, and the two adjacent first nuts 18 clamp the first support base 16 to fix the first support base 16 relative to the first lead screw 17 and the adjustment box 2. The first bevel gear 26 is driven to rotate by the motor 25, and the first bevel gear 26 drives the second support shaft 19 and the second prism 22 to rotate through the second bevel gear 27. The second prism 22 drives the first prism 14 and the second damping disc 12 to rotate synchronously through the rotating shaft 3. The second damping disc 12 drives the first damping disc 11 and the first support shaft 4 to rotate through friction. The first support shaft 4 drives the fixed column 51 to slide in the second chute 53 through the second support portion 52, and the fixed column 51 can push the first movable plate 6 to slide relative to the rotating seat 5, and the third guide block 55 slides in the third guide groove 54. Through the design of the third guide groove 54 and the third guide block 55, the first movable plate 6 moves smoothly relative to the rotating seat 5. When the pressing force of the pressing plate 7 on the vehicle frame reaches the preset value, as the second damping disc 12 continues to rotate, the second damping disc 12 cannot drive the first damping disc 11 and the first support shaft 4 to rotate synchronously through friction. When the rotating shaft 3 rotates in the reverse direction, so that the second damping disc 12 drives the first damping disc 11 and the first support shaft 4 to rotate in the reverse direction, the first movable plate 6 and the pressing plate 7 can be lifted. When the first movable plate 6 contacts the stop plate 56, the first movable plate 6 stops lifting. As the second damping disc 12 continues to rotate, the second damping disc 12 cannot drive the first damping disc 11 and the first support shaft 4 to continue rotating through friction.

[0024] In some alternative specific embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 10As shown in the figure, the horizontal position adjustment component includes a movable seat 28 arranged on the top of the adjustment box 2. A rectangular hole 29 is provided on the movable seat 28. A slider 30 is arranged in the rectangular hole 29. The bottom of the slider 30 is fixedly connected to the top of the adjustment box 2. The top of the slider 30 is fixedly connected to a support plate 31 located above the movable seat 28, and the bottom of the support plate 31 is in contact with the top of the movable seat 28. A number of second guide grooves 32 are provided on the frame 1. Second guide blocks 33 are fixedly connected to both ends of the movable seat 28 respectively. The second guide blocks 33 are located in the corresponding second guide grooves 32. A limiting member for limiting the position of the support plate 31 is installed on the frame 1. The limiting member includes a pressing seat 34 arranged above the frame 1. The top of the support plate 31 is in contact with the bottom of the pressing seat 34. A number of hydraulic expansion rods 35 are fixedly installed on the frame 1, and the telescopic ends of the hydraulic expansion rods 35 are fixedly connected to the bottom of the pressing seat 34. The angle adjuster includes a connecting shaft 36 fixedly installed on the rotating seat 5. The connecting shaft 36 is rotatably connected to the adjustment box 2. A worm gear 37 is fixedly sleeved on the outside of the connecting shaft 36. A worm 38 meshing with the worm gear 37 is arranged in the adjustment box 2. A support shell 39 located at the bottom of the adjustment box 2 is rotatably sleeved on the outside of the worm 38, and the support shell 39 is fixedly connected to the bottom of the adjustment box 2. The bottom end of the worm 38 is fixedly connected to a third prism 40. A second movable plate 41 is slidably sleeved on the outside of the third prism 40. At least two second lead screws 42 are fixedly connected to the bottom of the support shell 39, and two of the second lead screws 42 respectively penetrate through both ends of the second movable plate 41. Two second nuts 43 are arranged below the second movable plate 41, and the two second nuts 43 are sleeved on the outside of the corresponding two second lead screws 42; The hydraulic telescopic rod 35 is driven to move the pressing seat 34 upward, so that the pressing seat 34 no longer presses the support plate 31, and the fixation of the positions of the support plate 31 and the movable seat 28 is released. The staff drives the movable seat 28 to move, and the second guide block 33 slides in the second guide groove 32, so that the adjustment box 2 rotates relative to the frame 1 with the first bevel gear 26 as the center. And the staff drives the support plate 31 and the adjustment box 2 to slide relative to the movable seat 28 to change the position of the adjustment box 2. After the position of the adjustment box 2 is adjusted, the hydraulic telescopic rod 35 drives the pressing seat 34 to move downward, and the pressing seat 34 presses the bottom of the support plate 31, so that the support plate 31 and the movable seat 28 are fixed relative to the frame 1. The staff drives the third prism 40 and the worm 38 to rotate. The worm 38 drives the connecting shaft 36 and the rotating seat 5 to rotate through the worm gear 37. The rotating seat 5 drives the first movable plate 6 to rotate relative to the first support shaft 4 through the third guide block 55, changing the inclination angle of the pressing plate 7. Then, the inclined surface on the vehicle frame can be pressed by the pressing plate 7. When it is not necessary to drive the worm 38 to rotate, the staff drives the second movable plate 41 to move upward relative to the support shell 39, so that the corresponding two second lead screws 42 penetrate through both ends of the second movable plate 41. And the staff drives the second nut 43 to rotate. The second nut 43 drives the second movable plate 41 to closely adhere to the bottom of the worm 38, preventing the second movable plate 41 from detaching from the second lead screw 42, so that the second movable plate 41, the third prism 40 and the worm 38 are fixed relative to the second lead screw 42 and the support shell 39.

[0025] In some alternative specific embodiments, as Figure 8 and Figure 9 shown, the locking unit includes first support portions 44 respectively and fixedly installed on both sides of the first movable plate 6. An insertion plate 45 penetrates through the sliding plate 9, and the insertion plate 45 penetrates through the first movable plate 6. Positioning holes 46 are respectively formed at both ends of the insertion plate 45. A positioning post 47 penetrates through the first support portion 44. The bottom end of the positioning post 47 is located in the corresponding positioning hole 46. The top end of the positioning post 47 is fixedly connected with a fixed disk 48 located above the first support portion 44. A tension spring 49 is sleeved outside the positioning post 47, and both ends of the tension spring 49 are respectively fixedly connected with the first support portion 44 and the fixed disk 48; The insertion plate 45 penetrates through the sliding plate 9 and the first movable plate 6 simultaneously. The insertion plate 45 limits the position of the sliding plate 9 so that the sliding plate 9 and the pressing plate 7 are fixed relative to the first movable plate 6. When the pressing plate 7 contacts the vehicle frame, the pressing plate 7 impacts the vehicle frame to detect the strength of the vehicle frame. When it is necessary for the pressing plate 7 to continuously press the vehicle frame, the staff drives the fixed disk 48 and the positioning column 47 to move upward, and the tension spring 49 is in a stretched state, so that the bottom end of the positioning column 47 disengages from the positioning hole 46, releasing the limitation on the position of the insertion plate 45. The staff drives the insertion plate 45 to move horizontally so that the insertion plate 45 disengages from the sliding plate 9 and the first movable plate 6, and the fixed relationship between the sliding plate 9 and the first movable plate 6 can be released. When the pressing plate 7 contacts the vehicle frame, as the first movable plate 6 continues to move downward, the length of the sliding plate 9 located in the first chute 8 increases, and the first compression spring 10 applies a pressure to the sliding plate 9 and the pressing plate 7. When the first movable plate 6 descends to a preset position, the pressure applied by the first compression spring 10 to the sliding plate 9 and the pressing plate 7 reaches a preset value, and the pressing plate 7 can maintain a preset pressure to continuously press the vehicle frame.

[0026] This embodiment also provides a method for detecting the compressive strength of an aluminum alloy vehicle frame, including the compressive strength detector for an aluminum alloy vehicle frame as described above, and comprising the following steps: Step 1: Place the vehicle frame under the frame 1 through a manipulator, and adjust the position of each adjustment box 2 through the horizontal position adjustment component so that each adjustment box 2 moves to a preset detection position; Step 2: Drive a plurality of first support shafts 4 to rotate synchronously through the damping synchronous drive component; Step 3: The first support shaft 4 drives the first movable plate 6, the sliding plate 9, and the pressing plate 7 to move downward through the reciprocating transmission member, and the first compression spring 10 applies a pressure to the sliding plate 9 and the pressing plate 7 so that the pressure applied by the pressing plate 7 to the vehicle frame reaches a preset value; Step 4: When the time for the pressing plate 7 to press the vehicle frame reaches a preset value, drive the first support shaft 4 to rotate in the reverse direction through the damping synchronous drive component, so that the first support shaft 4 drives the first movable plate 6 and the pressing plate 7 to move upward to the initial height through the reciprocating transmission member, releasing the pressing on the vehicle frame.

[0027] Working principle: Place the vehicle frame under the machine frame 1 by means of a manipulator, adjust the position of each adjustment box 2 through the horizontal position adjustment component so that each adjustment box 2 moves to a preset detection position, drive a number of first support shafts 4 to rotate synchronously through the damping synchronous drive component, the first support shaft 4 drives the first movable plate 6, the slide plate 9 and the pressing plate 7 to move downward through the reciprocating transmission component. When the pressing plate 7 contacts the vehicle frame, as the first movable plate 6 continues to move downward, the first movable plate 6 slides relative to the slide plate 9, and the first compression spring 10 is in a compressed state. The first compression spring 10 exerts a pressure on the slide plate 9 and the pressing plate 7. When the pressure exerted by the pressing plate 7 on the vehicle frame reaches a preset value, the damping synchronous drive component no longer drives the first support shaft 4 to continue rotating. When the pressing time of the pressing plate 7 on the vehicle frame reaches a preset value, drive the first support shaft 4 to rotate in the reverse direction through the damping synchronous drive component, so that the first support shaft 4 drives the first movable plate 6 and the pressing plate 7 to move up to the initial height through the reciprocating transmission component, releasing the pressing on the vehicle frame. When it is necessary to make the pressing plate 7 repeatedly impact the vehicle frame to detect the strength of the vehicle frame, limit the positions of the slide plate 9 and the pressing plate 7 through the locking unit so that the slide plate 9 and the pressing plate 7 are fixedly connected relative to the first movable plate 6. When the pressing plate 7 impacts the vehicle frame with a force reaching a preset value when driving the first support shaft 4 to rotate through the damping synchronous drive component, the damping synchronous drive component drives the first support shaft 4 to rotate in the reverse direction so that the pressing plate 7 returns to the initial height. By periodically driving the first support shaft 4 to rotate forward and backward, the pressing plate 7 can repeatedly impact the vehicle frame, and multiple positions on the vehicle frame can be detected simultaneously, improving the detection efficiency. The vehicle frame can be subjected to long-term pressing detection, and can also be subjected to repeated impact detection, improving the applicable range of detection; When the adjustment box 2 moves horizontally relative to the frame 1, the adjustment box 2 can drive the rotating shaft 3 to slide relative to the second prism 22. At the same time, when the adjustment box 2 rotates relative to the frame 1, the adjustment box 2 drives the first guide block 24 to slide in the first guide groove 23 through the rotating shaft 3, the second prism 22 and the second support base 20, and the second bevel gear 27 rolls on the first bevel gear 26. The staff drives the first support base 16 and the rotating shaft 3 to move relative to the adjustment box 2, and the second groove 21 slides relative to the second prism 22, changing the length of the first prism 14 located in the first groove 13, thereby adjusting the length of the second compression spring 15, so as to control the pressure exerted by the second compression spring 15 on the first prism 14 and the second damping disc 12, achieving the purpose of adjusting the friction between the second damping disc 12 and the first damping disc 11. When it is not necessary to adjust the position of the first support base 16, the staff drives two adjacent first nuts 18 to move, and the two adjacent first nuts 18 clamp the first support base 16 to fix the first support base 16 relative to the first lead screw 17 and the adjustment box 2. The first bevel gear 26 is driven to rotate by the motor 25, and the first bevel gear 26 drives the second support shaft 19 and the second prism 22 to rotate through the second bevel gear 27. The second prism 22 drives the first prism 14 and the second damping disc 12 to rotate synchronously through the rotating shaft 3. The second damping disc 12 drives the first damping disc 11 and the first support shaft 4 to rotate through friction. The first support shaft 4 drives the fixed column 51 to slide in the second chute 53 through the second support portion 52, and the fixed column 51 can push the first movable plate 6 to slide relative to the rotating seat 5, and the third guide block 55 slides in the third guide groove 54. Through the design of the third guide groove 54 and the third guide block 55, the first movable plate 6 slides smoothly relative to the rotating seat 5. When the pressing force of the pressing plate 7 on the vehicle frame reaches the preset value, with the continuous rotation of the second damping disc 12, the second damping disc 12 cannot drive the first damping disc 11 and the first support shaft 4 to rotate synchronously through friction. When the rotating shaft 3 rotates in the reverse direction, so that the second damping disc 12 drives the first damping disc 11 and the first support shaft 4 to rotate in the reverse direction, the first movable plate 6 and the pressing plate 7 can be lifted. When the first movable plate 6 contacts the stop plate 56, the first movable plate 6 stops lifting. With the continuous rotation of the second damping disc 12, the second damping disc 12 cannot drive the first damping disc 11 and the first support shaft 4 to rotate continuously through friction; The hydraulic telescopic rod 35 drives the pressing seat 34 to move upward, so that the pressing seat 34 no longer presses the support plate 31, releasing the fixation of the positions of the support plate 31 and the movable seat 28. The staff drives the movable seat 28 to move, and the second guide block 33 slides in the second guide groove 32, so that the adjustment box 2 rotates relative to the frame 1 with the first bevel gear 26 as the center. And the staff drives the support plate 31 and the adjustment box 2 to slide relative to the movable seat 28 to change the position of the adjustment box 2. After the position of the adjustment box 2 is adjusted, the hydraulic telescopic rod 35 drives the pressing seat 34 to move downward, and the pressing seat 34 presses the bottom of the support plate 31, so that the support plate 31 and the movable seat 28 are fixed relative to the frame 1. The staff drives the third prism 40 and the worm 38 to rotate, and the worm 38 drives the connecting shaft 36 and the rotating seat 5 to rotate through the worm gear 37. The rotating seat 5 drives the first movable plate 6 to rotate relative to the first support shaft 4 through the third guide block 55, changing the inclination angle of the pressing plate 7. Then, the inclined surface on the vehicle frame can be pressed by the pressing plate 7. When it is not necessary to drive the worm 38 to rotate, the staff drives the second movable plate 41 to move upward relative to the support shell 39, so that the corresponding two second lead screws 42 penetrate through both ends of the second movable plate 41. And the staff drives the second nut 43 to rotate, and the second nut 43 drives the second movable plate 41 to closely adhere to the bottom of the worm 38, preventing the second movable plate 41 from detaching from the second lead screw 42, so that the second movable plate 41, the third prism 40 and the worm 38 are fixed relative to the second lead screw 42 and the support shell 39; The insertion plate 45 penetrates through the sliding plate 9 and the first movable plate 6 at the same time. The insertion plate 45 limits the position of the sliding plate 9, so that the sliding plate 9 and the pressing plate 7 are fixed relative to the first movable plate 6. When the pressing plate 7 contacts the vehicle frame, the pressing plate 7 impacts the vehicle frame to detect the strength of the vehicle frame. When it is necessary for the pressing plate 7 to continuously press the vehicle frame, the staff drives the fixed disk 48 and the positioning column 47 to move upward, and the tension spring 49 is in a stretched state, so that the bottom end of the positioning column 47 disengages from the positioning hole 46, releasing the limitation of the position of the insertion plate 45. The staff drives the insertion plate 45 to move horizontally, so that the insertion plate 45 disengages from the sliding plate 9 and the first movable plate 6, and then the fixed relationship between the sliding plate 9 and the first movable plate 6 can be released. When the pressing plate 7 contacts the vehicle frame, as the first movable plate 6 continuously moves downward, the length of the sliding plate 9 located in the first chute 8 increases, and the first compression spring 10 applies a pressure to the sliding plate 9 and the pressing plate 7. When the first movable plate 6 descends to a preset position, the pressure applied by the first compression spring 10 to the sliding plate 9 and the pressing plate 7 reaches the preset value, and then the pressing plate 7 can maintain a preset pressure to continuously press the vehicle frame.

[0028] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A compressive detector for an aluminum alloy frame, comprising a frame (1), characterized in that, Below the described frame (1), there are several adjustment boxes (2). The frame (1) is equipped with a horizontal position adjustment component for adjusting the horizontal positions of several adjustment boxes (2). Inside the adjustment box (2), a first support shaft (4) is rotatably connected. The frame (1) is equipped with a damping synchronous drive component for driving several first support shafts (4) to rotate synchronously. Inside the adjustment box (2), there is a rotating seat (5). On the side of the rotating seat (5) facing the first support shaft (4), there is a first movable plate (6). An avoidance hole (50) adapted to the first movable plate (6) is formed on the inner wall of the adjustment box (2). The first movable plate (6) is equipped with a sliding unit cooperating with the rotating seat (5). The adjustment box (2) is equipped with an angle adjuster for adjusting the inclination angle of the rotating seat (5). The first support shaft (4) is equipped with a reciprocating transmission member for driving the first movable plate (6) to slide reciprocally. At the bottom of the first movable plate (6), a first chute (8) is formed. Inside the first chute (8), there is a sliding plate (9). The top end of the sliding plate (9) and the inner wall of the first chute (8) are connected by several first compression springs (10). The bottom end of the sliding plate (9) is fixedly connected to a pressing plate (7) located below the first movable plate (6). The first movable plate (6) is equipped with a locking unit for limiting the position of the sliding plate (9).

2. The compressive detector for an aluminum alloy frame according to claim 1, wherein The damping synchronous drive component includes a first damping disc (11) fixedly installed at the end of the first support shaft (4). Below the frame (1), there are several rotating shafts (3), and the number of rotating shafts (3) is the same as that of the first support shafts (4). Inside the adjustment box (2), there is a second damping disc (12), and the second damping disc (12) is in contact with the first damping disc (11). The rotating shaft (3) is equipped with an elastic force adjustment member for adjusting the pressing force on the second damping disc (12). The frame (1) is equipped with a drive unit for driving several rotating shafts (3) to rotate.

3. The compressive detector for an aluminum alloy frame according to claim 2, characterized in that, The elastic force adjustment member includes a first prism (14) fixedly installed on the second damping disc (12). At one end of the rotating shaft (3) facing the second damping disc (12), a first groove (13) is formed. One end of the first prism (14) away from the second damping disc (12) is located inside the first groove (13), and the first prism (14) and the inner wall of the first groove (13) are connected by a second compression spring (15). The outer part of the rotating shaft (3) is rotatably sleeved with a first support seat (16). At least two first lead screws (17) penetrate through the first support seat (16). The first lead screws (17) are fixedly connected to the adjustment box (2). The outer part of the first lead screw (17) is sleeved with two first nuts (18), and the adjacent two first nuts (18) are respectively located on both sides of the first support seat (16).

4. The compressive detector for an aluminum alloy frame according to claim 2, characterized in that, The driving unit includes a second support shaft (19) arranged at one end of the rotating shaft (3) away from the adjustment box (2). A second support seat (20) is rotatably sleeved outside the second support shaft (19). A second groove (21) is formed on the rotating shaft (3). A second prism (22) is arranged in the second groove (21), and the second prism (22) is fixedly connected to the second support shaft (19). A first guiding groove (23) is formed at the bottom of the frame (1). A first guiding block (24) is fixedly connected to the top of the second support seat (20), and the first guiding block (24) is located in the first guiding groove (23). The frame (1) is fixedly installed with a motor (25). The output end of the motor (25) is fixedly connected to a first bevel gear (26) located below the frame (1). One end of the second support shaft (19) away from the second prism (22) is fixedly connected to a second bevel gear (27) meshing with the first bevel gear (26).

5. The compressive detector for an aluminum alloy frame according to claim 1, characterized in that, The horizontal position adjustment assembly includes a movable seat (28) arranged at the top of the adjustment box (2). A rectangular hole (29) is formed in the movable seat (28). A slider (30) is arranged in the rectangular hole (29). The bottom of the slider (30) is fixedly connected to the top of the adjustment box (2). The top of the slider (30) is fixedly connected to a support plate (31) located above the movable seat (28), and the bottom of the support plate (31) is in contact with the top of the movable seat (28). A number of second guiding grooves (32) are formed on the frame (1). Second guiding blocks (33) are respectively fixedly connected to both ends of the movable seat (28), and the second guiding blocks (33) are located in the corresponding second guiding grooves (32). The frame (1) is equipped with a limiting member for limiting the position of the support plate (31).

6. The compressive detector for an aluminum alloy frame according to claim 5, wherein The limiting member includes a pressing seat (34) arranged above the frame (1). The top of the support plate (31) is in contact with the bottom of the pressing seat (34). The frame (1) is fixedly installed with a number of hydraulic expansion rods (35), and the telescopic ends of the hydraulic expansion rods (35) are fixedly connected to the bottom of the pressing seat (34).

7. The compressive detector for an aluminum alloy frame according to claim 1, characterized in that, The angle adjuster includes a connecting shaft (36) fixedly installed on the rotating seat (5). The connecting shaft (36) is rotatably connected to the adjustment box (2). A worm wheel (37) is fixedly sleeved outside the connecting shaft (36). A worm (38) meshing with the worm wheel (37) is arranged in the adjustment box (2). A support shell (39) is rotatably sleeved outside the worm (38) and located at the bottom of the adjustment box (2), and the support shell (39) is fixedly connected to the bottom of the adjustment box (2). The bottom end of the worm (38) is fixedly connected to a third prism (40). A second movable plate (41) is slidably sleeved outside the third prism (40). At least two second lead screws (42) are fixedly connected to the bottom of the support shell (39), and two of the second lead screws (42) respectively penetrate through both ends of the second movable plate (41). Two second nuts (43) are arranged below the second movable plate (41), and the two second nuts (43) are sleeved outside the corresponding two second lead screws (42).

8. The compressive detector for an aluminum alloy frame according to claim 1, characterized in that, The locking unit includes first support parts (44) fixedly installed on both sides of the first movable plate (6). A plug plate (45) penetrates through the sliding plate (9) and also penetrates through the first movable plate (6). Positioning holes (46) are respectively formed at both ends of the plug plate (45). A positioning post (47) penetrates through the first support part (44). The bottom end of the positioning post (47) is located in the corresponding positioning hole (46). The top end of the positioning post (47) is fixedly connected to a fixed disk (48) located above the first support part (44). A tension spring (49) is sleeved outside the positioning post (47), and both ends of the tension spring (49) are fixedly connected to the first support part (44) and the fixed disk (48) respectively.

9. The compressive detector for an aluminum alloy frame according to claim 1, characterized in that, The reciprocating transmission member includes a second support part (52) fixedly installed on the first support shaft (4). A second sliding groove (53) is formed on one side of the first movable plate (6) facing the second support part (52). A fixed post (51) is arranged in the second sliding groove (53) and is fixedly connected to the second support part (52). The sliding unit includes a third guiding block (55) fixedly installed on one side of the first movable plate (6) facing the rotating seat (5). A third guiding groove (54) is formed on the rotating seat (5), and the third guiding block (55) is located in the corresponding third guiding groove (54). A stop plate (56) is arranged above the first movable plate (6) and is fixedly connected to the rotating seat (5).

10. A compressive testing method for an aluminum alloy frame, including the compressive detector for an aluminum alloy frame as described in claim 1, characterized in that: It includes the following steps: Step 1: Place the vehicle frame below the machine frame (1) through a manipulator, and adjust the positions of each adjustment box (2) through the horizontal position adjustment assembly so that each adjustment box (2) moves to a preset detection position. Step 2: Drive a plurality of first support shafts (4) to rotate synchronously through the damping synchronous drive assembly. Step 3: The first support shaft (4) drives the first movable plate (6), the sliding plate (9) and the pressing plate (7) to move downward through the reciprocating transmission member. The first compression spring (10) applies pressure to the sliding plate (9) and the pressing plate (7) so that the pressure applied by the pressing plate (7) to the vehicle frame reaches a preset value. Step 4: When the time for the pressing plate (7) to press the vehicle frame reaches the preset value, drive the first support shaft (4) to rotate in the reverse direction through the damping synchronous drive assembly so that the first support shaft (4) drives the first movable plate (6) and the pressing plate (7) to move up to the initial height through the reciprocating transmission member, and release the pressing on the vehicle frame.

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