A leaf spring elastic strength detection device

Abstract

The present invention relates to the technical field of detection equipment, in particular to a leaf spring elastic strength detection device, which includes a detection platform. There are two guide rails arranged on the top of the detection platform, and an included angle is formed between the two guide rails. A first slider is slidably arranged on the guide rails, and a support structure is installed on the top of the first slider. An arcuate outer frame is arranged outside the detection platform, and a pressing structure is arranged on the arcuate outer frame; through the continuous elastic strength detection work on the leaf spring body, the comprehensive detection of the leaf spring body can be realized, which is convenient for detecting the elastic strength of the leaf spring body at different fulcrum positions, effectively improving the comprehensiveness of the detection data, and effectively expanding the detection range, improving the accuracy of the detection and the detection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly to a leaf spring elastic strength detection device. Background Art

[0002] As is well known, a leaf spring, also known as a leaf spring plate, is an elastic arc-shaped alloy plate. In the automotive field, the leaf spring mainly functions as an elastic beam, which connects the vehicle frame and the axle in a suspension form. The leaf spring is exposed between the vehicle frame and the axle and bears the load impact of the wheels on the vehicle frame. The leaf spring can effectively reduce the vehicle body vibration, facilitate the vehicle to maintain stable operation, and enable the vehicle to adapt to different road conditions.

[0003] After the leaf spring plate is manufactured, it is generally necessary to detect its elastic strength to accurately control its specific parameters and facilitate quality inspection. The traditional detection method is to lap the leaf spring plate between two support protrusions, press down the middle part of the leaf spring by hydraulic pressure, and then combine the hydraulic pressure value and the deformation amount of the leaf spring plate to complete the elastic detection work of the leaf spring. However, this detection method is relatively single. It can only detect the overall elasticity of the leaf spring plate, but cannot detect the elastic strength of the leaf spring plate at different fulcrum positions, resulting in relatively one-sided detection data, a small detection range, and inability to comprehensively and effectively master the leaf spring data, resulting in poor detection effects. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a leaf spring elastic strength detection device.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A leaf spring elastic strength detection device includes a detection platform. Two guide rails are arranged on the top of the detection platform, and an included angle is formed between the two guide rails. A first slider is slidably arranged on the guide rails, and a support structure is installed on the top of the first slider. An arcuate outer frame is arranged outside the detection platform, and a pressing structure is arranged on the arcuate outer frame;

[0007] Wherein, the support structure is used for extruding and supporting the leaf spring plate body to be detected, and the pressing structure is used for pressing and detecting the leaf spring.

[0008] Further, the pressing structure includes an arched support plate, the arched support plate is located on the inner side of the arched outer frame, two push plates are rotatably installed on the front and rear side walls of the arched support plate, the two push plates on the same side of the arched support plate are parallel, notches are opened on the front and rear sides of the top of the arched outer frame, a second slider is slidably arranged in the notch, the outer ends of the two push plates on the same side of the arched support plate are rotatably installed on the second slider, two propulsion cylinders are arranged between the two second sliders, the fixed ends of the two propulsion cylinders are butt-jointed, and the movable ends of the propulsion cylinders are installed on the second slider;

[0009] Two slide plates are installed on the top of the arched support plate, the top of the slide plates pass through the arched outer frame and are slidably connected, a laser rangefinder is arranged between the two slide plates, and the laser rangefinder is fixed on the top of the arched support plate;

[0010] Wherein, a clamping structure is arranged at the bottom of the arched support plate, and the clamping structure is used to fix the leaf spring body on the arched support plate.

[0011] Furthermore, the opening of the arched support plate faces downward, and the clamping structure includes two long strip groove plates installed at both ends of the arched support plate, a third slider is slidably arranged in the long strip groove plate, a spring is installed on the top of the third slider, the top of the spring is fixed to the top of the inner wall of the long strip groove plate, and rotating columns are rotatably installed on both sides of the front and rear of the third slider, an arched push plate is arranged on the outer side of the long strip groove plate, the two ends of the arched push plate are respectively fixed on the two rotating columns, a supporting plate is installed on the arched push plate, a first push-pull rod is obliquely installed on the outer wall of the rotating column, and a second push-pull rod is rotatably installed on the outer end of the first push-pull rod;

[0012] A base is installed between the two long strip groove plates, a first cylinder is installed on the top of the base, a moving plate is installed on the upper movable end of the first cylinder, and the top of the second push-pull rod is rotatably installed on the moving plate;

[0013] A plurality of right-angle limiting plates are installed on the side walls of the base.

[0014] Furthermore, a support column is rotatably provided on the top of the first slider, a turntable is provided on the outer wall of the support column, the outer end of the turntable is fixed on the top of the first slider, a torsion spring is fixed on the top of the support column, and the support structure is fixed on the top of the torsion spring.

[0015] Further, the support structure includes a first bow frame installed on the torsion spring, a second bow frame is slidably arranged in the first bow frame, the second bow frame is opened downward, a second cylinder is installed on the top of the first bow frame, the movable end of the second cylinder is fixed on the top of the second bow frame, and squeezing rollers are rotatably installed on the inner wall of the second bow frame and the inner wall of the first bow frame;

[0016] On the outer walls of the left and right sides of the extrusion roller inside the first bow-shaped frame, arc-shaped limit plates are slidably arranged. The arc-shaped limit plates are located between the extrusion roller on the first bow-shaped frame and the extrusion roller on the second bow-shaped frame. Guide rods and extrusion leaf springs are installed on the side walls of the arc-shaped limit plates. The outer ends of the guide rods pass through the first bow-shaped frame and slide, and the outer ends of the extrusion leaf springs are fixed to the bottom of the second bow-shaped frame.

[0017] Furthermore, the guide rail slides on the detection platform. A first adjustment structure is arranged on the left side of the detection platform, and a second adjustment structure is arranged on the right side of the detection platform. The first adjustment structure and the second adjustment structure adjust the positions of both ends of the guide rail.

[0018] Furthermore, the first adjustment structure includes a first chute opened on the left side of the detection platform. Two fourth sliders are slidably arranged in the first chute. Two first lead screws are rotatably arranged in the first chute. The two first lead screws are butted, and the spiral directions of the two first lead screws are opposite. The first lead screws pass through the fourth sliders and are screwed and connected. A first motor is installed on the outer wall of the detection platform, and the output end of the first motor is in transmission connection with the first lead screw;

[0019] The top of the fourth slider is rotatably connected to the left end of the guide rail.

[0020] Furthermore, the second adjustment structure includes a second chute opened on the right side of the detection platform. Slide tooth rows are slidably arranged on the front and rear sides inside the second chute. Adjustment arms are obliquely and rotatably installed on the outer walls of the slide tooth rows. The outer ends of the adjustment arms are rotatably installed at the right end of the guide rail. Gears are meshed on the teeth of the slide tooth rows, and a second motor is arranged on the gears. The second motor is fixed on the detection platform.

[0021] Furthermore, third chutes are opened on the front and rear side walls of the detection platform. Fifth sliders are slidably arranged on the third chutes. Third motors are installed on the front and rear side walls of the detection platform, and second lead screws are arranged at the output ends of the third motors. The second lead screws pass through the fifth sliders and are screwed and connected;

[0022] The end of the bow-shaped outer frame is connected to the top of the fifth slider.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: By performing continuous elastic strength detection on the leaf spring plate body, comprehensive detection of the leaf spring plate body can be realized, which is convenient for detecting the elastic strength of the leaf spring plate body at different fulcrum positions, effectively improving the comprehensiveness of detection data, and effectively expanding the detection range, improving the accuracy of detection and the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is Figure 1 the enlarged structural schematic diagram of the bow-shaped support plate in;

[0027] Figure 3 is Figure 1 the enlarged structural schematic diagram of the first slider in;

[0028] Figure 4 is Figure 1 the enlarged structural schematic diagram of the fourth slider in;

[0029] Reference numerals in the drawings: 1, detection platform; 2, guide rail; 3, first slider; 4, bow-shaped outer frame; 5, bow-shaped support plate; 6, push plate; 7, second slider; 8, propulsion oil cylinder; 9, sliding plate; 10, laser rangefinder; 11, long strip groove plate; 12, third slider; 13, spring; 14, rotating column; 15, bow-shaped push plate; 16, support plate; 17, first push-pull rod; 18, second push-pull rod; 19, base; 20, first cylinder; 21, moving plate; 22, right-angle limit plate; 23, support column; 24, turntable; 25, torsion spring; 26, first bow-shaped frame; 27, second bow-shaped frame; 28, second cylinder; 29, extrusion roller; 30, arc limit plate; 31, guide rod; 32, extrusion leaf spring; 33, first chute; 34, fourth slider; 35, first lead screw; 36, first motor; 37, second chute; 38, sliding tooth row; 39, adjusting arm; 40, gear; 41, second motor; 42, third chute; 43, fifth slider; 44, third motor; 45, second lead screw. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. This embodiment is written in a progressive manner.

[0033] As Figure 1 shown, a leaf spring elastic strength detection device of the present invention includes a detection platform 1. Two guide rails 2 are arranged on the top of the detection platform 1, and an included angle is formed between the two guide rails 2. A first slider 3 is slidably arranged on the guide rails 2. A support structure is installed on the top of the first slider 3. An arcuate outer frame 4 is arranged outside the detection platform 1, and a pressing structure is arranged on the arcuate outer frame 4;

[0034] Among them, the support structure is used to extrude and support the leaf spring piece body to be detected, and the pressing structure is used to perform a pressing detection process on the leaf spring.

[0035] In this embodiment, the leaf spring body to be detected is fixed on two support structures on two first sliders 3. The pressing structure presses and detects the leaf spring body, and the pressing structure is fixedly connected to the leaf spring body. The bow-shaped outer frame 4 is pushed to move horizontally. The bow-shaped outer frame 4 drives the leaf spring body to move horizontally through the pressing structure. The leaf spring body drives the first sliders 3 to slide on the guide rails 2. Since the two guide rails 2 are in an angular state, when the two first sliders 3 move, the distance between them continuously decreases, so that the fulcrum position of the leaf spring body continuously changes and the detection width of the leaf spring body gradually decreases. The pressing structure performs elastic detection processing on the leaf spring body in real time, so as to realize the mobile detection work of the leaf spring body. At the same time, it is convenient to detect the elastic strength of the leaf spring body at different fulcrum positions, and the continuity of detection can be improved, which is convenient for drawing the elastic strength detection curve of the leaf spring body in the later stage, so as to improve the comprehensiveness of detection. By performing continuous elastic strength detection work on the leaf spring body, the comprehensive detection of the leaf spring body can be realized, which is convenient for detecting the elastic strength of the leaf spring body at different fulcrum positions, effectively improving the comprehensiveness of detection data, effectively expanding the detection range, improving the accuracy of detection, and improving the detection effect.

[0036] As Figure 1 and Figure 2 shown, as a preference of the above embodiment, the pressing structure includes a bow-shaped support plate 5. The bow-shaped support plate 5 is located inside the bow-shaped outer frame 4. Two push plates 6 are rotatably installed on the front and rear side walls of the bow-shaped support plate 5. The two push plates 6 on the same side of the bow-shaped support plate 5 are parallel. Openings are provided on the front and rear sides of the top of the bow-shaped outer frame 4. Second sliders 7 are slidably arranged in the openings. The outer ends of the two push plates 6 on the same side of the bow-shaped support plate 5 are rotatably installed on the second sliders 7. Two propulsion oil cylinders 8 are arranged between the two second sliders 7. The fixed ends of the two propulsion oil cylinders 8 are butted. The movable ends of the propulsion oil cylinders 8 are installed on the second sliders 7;

[0037] Two sliding plates 9 are installed on the top of the bow-shaped support plate 5. The tops of the sliding plates 9 pass through the bow-shaped outer frame 4 and are slidably connected. A laser rangefinder 10 is arranged between the two sliding plates 9. The laser rangefinder 10 is fixed on the top of the bow-shaped support plate 5;

[0038] Among them, a clamping structure is arranged at the bottom of the bow-shaped support plate 5. The clamping structure is used to fix the leaf spring body on the bow-shaped support plate 5.

[0039] In this embodiment, the leaf spring body is fixedly connected to the arcuate support plate 5 through a clamping structure. The two propulsion cylinders 8 contract synchronously. The two propulsion cylinders 8 pull the two second sliders 7 to move closer to each other synchronously. The second sliders 7 push the arcuate support plate 5 downward through the two push plates 6 thereon. The two second sliders 7 move synchronously, so that the four push plates 6 on the arcuate support plate 5 push the arcuate support plate 5 to move synchronously, improving the stability of the movement of the arcuate support plate 5. The arcuate support plate 5 drives the slide plate 9 to slide on the arcuate outer frame 4. The arcuate support plate 5 presses down on the leaf spring body, and the hydraulic pressure of the propulsion cylinder 8 is detected, so as to detect the downward pressure of the arcuate support plate 5 on the leaf spring body, which is convenient for detecting the reverse elastic strength of the leaf spring body. The laser rangefinder 10 can detect the distance between the arcuate support plate 5 and the top of the inner wall of the arcuate outer frame 4, so as to detect the deformation amount of the leaf spring, which is convenient for detecting the elastic strength of the leaf spring body.

[0040] In this embodiment, by using the two push plates 6 on the second slider 7 to push the arcuate support plate 5, it is convenient to keep the arcuate support plate 5 moving vertically, avoid its inclination, and achieve the purpose of guiding and supporting the arcuate support plate 5, improving the strength and stability of the translational movement of the arcuate support plate 5. At the same time, the four push plates 6 on the arcuate support plate 5 can pull the two second sliders 7 to move synchronously, achieving the purpose of limiting and guiding the two second sliders 7 by the push plates 6, and facilitating the two second sliders 7 to always maintain a synchronous moving state. The slide plate 9 can guide the arcuate support plate 5, and at the same time, the slide plate 9 can limit the two second sliders 7, facilitating the two second sliders 7 to maintain a synchronous approaching or separating movement state centered on the vertical axis of the slide plate 9, and facilitating the centering process of the arcuate support plate 5.

[0041] As Figure 2 shown, as the preference of the above embodiment, the opening of the arcuate support plate 5 faces downward. The clamping structure includes two long strip groove plates 11 installed at both ends of the arcuate support plate 5. A third slider 12 is slidably arranged in the long strip groove plate 11. A spring 13 is installed on the top of the third slider 12, and the top of the spring 13 is fixed to the top of the inner wall of the long strip groove plate 11. Rotating columns 14 are rotatably installed on both the front and rear sides of the third slider 12. An arcuate push plate 15 is arranged outside the long strip groove plate 11. Both ends of the arcuate push plate 15 are respectively fixed on the two rotating columns 14. A support plate 16 is installed on the arcuate push plate 15. A first push rod 17 is inclinedly installed on the outer wall of the rotating column 14, and the outer end of the first push rod 17 is rotatably installed with a second push rod 18;

[0042] A base 19 is installed between the two long strip groove plates 11. A first cylinder 20 is installed on the top of the base 19. A movable plate 21 is installed on the upper movable end of the first cylinder 20. The top of the second push rod 18 is rotatably installed on the movable plate 21;

[0043] A plurality of right-angle limit plates 22 are installed on the side wall of the base 19.

[0044] In this embodiment, the bottom of the base 19 contacts the top of the leaf spring body. The first cylinder 20 pushes the moving plate 21 to move upward. The moving plate 21 drives the rotating column 14 to rotate by pulling the second push rod 18 and the first push rod 17. The spring 13 generates an elastic thrust on the third slider 12. The rotating column 14 drives the arcuate push plate 15 and the supporting plate 16 to rotate, so that the supporting plate 16 gradually moves below the leaf spring body. When the side wall of the arcuate push plate 15 contacts the right-angle limit plate 22, the arcuate push plate 15 rotates from an inclined state to a vertical state. The supporting plate 16 is located below the leaf spring body. The moving plate 21 continues to move upward. The right-angle limit plate 22 limits the arcuate push plate 15. The first push rod 17 pulls the arcuate push plate 15 to move vertically and slide on the right-angle limit plate 22 through the rotating column 14, so that the rotating column 14 drives the third slider 12 to slide upward in the long-strip groove plate 11. At this time, the supporting plate 16 keeps moving upward vertically. The top of the supporting plate 16 contacts the bottom of the leaf spring body and squeezes and fixes the leaf spring body, so that it is fixed at the bottom of the base 19. The third slider 12 in the upward moving state pushes the spring 13 to undergo elastic deformation.

[0045] As Figure 3 shown, as an optimization of the above embodiment, a support column 23 is rotatably arranged on the top of the first slider 3. A turntable 24 is arranged on the outer wall of the support column 23. The outer end of the turntable 24 is fixed on the top of the first slider 3. A torsion spring 25 is fixed on the top of the support column 23. The support structure is fixed on the top of the torsion spring 25.

[0046] In this embodiment, since the guide rail 2 is inclined, when the leaf spring body is fixed on the two support structures, first rotate the torsion spring 25. The torsion spring 25 drives the support structure to rotate obliquely, so as to facilitate the orientation of the support structure towards the outside and facilitate the fixing of the leaf spring body on the support structure, thereby reducing the difficulty of loading and unloading the leaf spring body on the support structure. The support column 23 can support the torsion spring 25, and the turntable 24 can drive the support column 23 and the torsion spring 25 to reset.

[0047] As Figure 3 shown, as an optimization of the above embodiment, the support structure includes a first arcuate frame 26 installed on the torsion spring 25. A second arcuate frame 27 is slidably arranged in the first arcuate frame 26. The opening of the second arcuate frame 27 faces downward. A second cylinder 28 is installed on the top of the first arcuate frame 26. The movable end of the second cylinder 28 is fixed on the top of the second arcuate frame 27. Pressing rollers 29 are rotatably installed on the inner walls of both the second arcuate frame 27 and the first arcuate frame 26;

[0048] On both the left and right sides of the outer wall of the extrusion roller 29 inside the first arcuate frame 26, arc-shaped limiting plates 30 are slidably arranged. The arc-shaped limiting plates 30 are located between the extrusion roller 29 on the first arcuate frame 26 and the extrusion roller 29 on the second arcuate frame 27. A guide rod 31 and an extrusion leaf spring 32 are installed on the side wall of the arc-shaped limiting plate 30. The outer end of the guide rod 31 passes through the first arcuate frame 26 and slides, and the outer end of the extrusion leaf spring 32 is fixed to the bottom of the second arcuate frame 27.

[0049] In this embodiment, the leaf spring body passes through the gap between the extrusion roller 29 on the first arcuate frame 26 and the extrusion roller 29 on the second arcuate frame 27. The second air cylinder 28 pushes the second arcuate frame 27 to move downward. The second arcuate frame 27 drives the extrusion roller 29 inside it to move downward. The two extrusion rollers 29 approach each other and perform an extrusion clamping process on the leaf spring body. When the leaf spring body moves, the distance between the two first sliders 3 decreases. The leaf spring body is fixed on the base 19. The leaf spring body passes through the two extrusion rollers 29 and slides. The extrusion rollers 29 rotate, so that a relative movement is generated between the support structure and the leaf spring body, and the support structure supports different fulcrum positions on the leaf spring body to realize the comprehensive detection work of the leaf spring body. When the extrusion roller 29 on the second arcuate frame 27 moves downward, the second arcuate frame 27 pushes the arc-shaped limiting plate 30 to slide on the outer wall of the extrusion roller 29 on the first arcuate frame 26 through the extrusion leaf spring 32. The two extrusion leaf springs 32 approach each other synchronously and perform an extrusion fixing process on the side wall of the leaf spring body between them, so as to realize the limiting work of the leaf spring body and avoid random shaking when it moves, which is convenient for positioning treatment. When the leaf spring body moves, a relative sliding is generated between it and the arc-shaped limiting plate 30. The guide rod 31 can guide the arc-shaped limiting plate 30, and the extrusion leaf spring 32 can generate an elastic pushing force on the arc-shaped limiting plate 30.

[0050] As Figure 1 and Figure 4 shown, as a preference of the above embodiment, the guide rail 2 slides on the detection platform 1. A first adjustment structure is arranged on the left side of the detection platform 1, and a second adjustment structure is arranged on the right side of the detection platform 1. The first adjustment structure and the second adjustment structure adjust the positions of both ends of the guide rail 2.

[0051] In this embodiment, by setting the first adjustment structure and the second adjustment structure, it is convenient to adjust the positions of both ends of the guide rail 2, so as to adjust the inclination angle of the guide rail 2. At the same time, it is convenient to adjust the included angle position and the included angle opening direction of the two guide rails 2, so as to conveniently adjust the fulcrum movement track of the leaf spring body and improve the comprehensiveness of the detection of the leaf spring body.

[0052] As Figure 1 and Figure 4As shown in the figure, as an optimization of the above embodiment, the first adjustment structure includes a first sliding groove 33 opened on the left side of the detection platform 1. Two fourth sliders 34 are slidably arranged in the first sliding groove 33. Two first lead screws 35 are rotatably arranged in the first sliding groove 33. The two first lead screws 35 are butted, and the spiral directions of the two first lead screws 35 are opposite. The first lead screw 35 passes through the fourth slider 34 and is screwed and connected. A first motor 36 is installed on the outer wall of the detection platform 1, and the output end of the first motor 36 is in transmission connection with the first lead screw 35;

[0053] The top of the fourth slider 34 is rotatably connected to the left end of the guide rail 2.

[0054] In this embodiment, the first motor 36 drives the two butted first lead screws 35 to rotate. The two first lead screws 35 push the two fourth sliders 34 to move synchronously. Since the spiral directions of the two first lead screws 35 are opposite, the moving directions of the two fourth sliders 34 are opposite. The fourth slider 34 slides in the first sliding groove 33, and the fourth slider 34 drives the left end of the guide rail 2 to move, so as to adjust one end of the guide rail 2.

[0055] As Figure 1 shown in the figure, as an optimization of the above embodiment, the second adjustment structure includes a second sliding groove 37 opened on the right side of the detection platform 1. Sliding tooth rows 38 are slidably arranged on the front and rear sides inside the second sliding groove 37. An adjustment arm 39 is rotatably installed obliquely on the outer wall of the sliding tooth row 38. The outer end of the adjustment arm 39 is rotatably installed at the right end of the guide rail 2. A gear 40 is meshed on the teeth of the sliding tooth row 38, and a second motor 41 is arranged on the gear 40. The second motor 41 is fixed on the detection platform 1.

[0056] In this embodiment, the second motor 41 drives the sliding tooth row 38 to move through the gear 40. The sliding tooth row 38 slides in the second sliding groove 37. At the same time, the sliding tooth row 38 drives the right end of the guide rail 2 to move through the adjustment arm 39, so as to realize the adjustment work of both ends of the guide rail 2 and facilitate the adjustment of the included angle and distance between the two guide rails 2.

[0057] As Figure 1 shown in the figure, as an optimization of the above embodiment, third sliding grooves 42 are opened on the front and rear side walls of the detection platform 1. Fifth sliders 43 are slidably arranged on the third sliding grooves 42. Third motors 44 are installed on the front and rear side walls of the detection platform 1. The output end of the third motor 44 is provided with a second lead screw 45. The second lead screw 45 passes through the fifth slider 43 and is screwed and connected;

[0058] The end of the bow-shaped outer frame 4 is connected to the top of the fifth slider 43.

[0059] In this embodiment, two third motors 44 are started simultaneously. The third motors 44 drive the fifth slider 43 to slide in the third chute 42 through the second lead screw 45. At the same time, the fifth slider 43 drives the arcuate outer frame 4 to move, thereby realizing the detection work of the leaf spring body.

[0060] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A leaf spring elastic strength detection device, characterized in that, The detection platform (1) comprises two guide rails (2) arranged on the top of the detection platform (1), the two guide rails (2) being at an angle to each other, a first slider (3) being slidably arranged on the guide rail (2), a support structure being installed on the top of the first slider (3), an arched outer frame (4) being arranged on the outer side of the detection platform (1), and a downward pressing structure being arranged on the arched outer frame (4); Wherein, the support structure is used to squeeze and support the leaf spring body to be tested, and the pressing structure is used to perform pressing and testing on the leaf spring; The pressing structure comprises an arched support plate (5), the arched support plate (5) is located on the inner side of the arched outer frame (4), two push plates (6) are rotatably mounted on the front and rear side walls of the arched support plate (5), the two push plates (6) on the same side of the arched support plate (5) are parallel, the front and rear sides of the top of the arched outer frame (4) are provided with notches, a second slider (7) is slidably arranged in the notch, the outer ends of the two push plates (6) on the same side of the arched support plate (5) are rotatably mounted on the second slider (7), two propulsion cylinders (8) are arranged between the two second sliders (7), the fixed ends of the two propulsion cylinders (8) are butt-jointed, and the movable ends of the propulsion cylinders (8) are mounted on the second slider (7); Two slide plates (9) are installed on the top of the arched support plate (5), the top of the slide plates (9) passes through the arched outer frame (4) and is slidably connected, a laser rangefinder (10) is arranged between the two slide plates (9), and the laser rangefinder (10) is fixed on the top of the arched support plate (5); Wherein, a clamping structure is provided at the bottom of the arched support plate (5), and the clamping structure is used to fix the leaf spring body on the arched support plate (5).

2. The leaf spring elastic strength detection device according to claim 1, characterized in that, The bow-shaped support plate (5) opens downward, and the clamping structure comprises two long strip groove plates (11) installed at both ends of the bow-shaped support plate (5), a third slider (12) is slidably arranged in the long strip groove plate (11), a spring (13) is installed on the top of the third slider (12), and the top of the spring (13) is fixed to the top of the inner wall of the long strip groove plate (11), and rotating columns (14) are rotatably installed on both the front and rear sides of the third slider (12), an arched push plate (15) is arranged on the outer side of the long strip groove plate (11), and the two ends of the arched push plate (15) are respectively fixed on the two rotating columns (14), and a supporting plate (16) is installed on the arched push plate (15), and a first push-pull rod (17) is obliquely installed on the outer wall of the rotating column (14), and a second push-pull rod (18) is rotatably installed on the outer end of the first push-pull rod (17); A base (19) is installed between the two long strip groove plates (11), a first cylinder (20) is installed on the top of the base (19), a movable plate (21) is installed on the upper movable end of the first cylinder (20), and the top of the second push-pull rod (18) is rotatably installed on the movable plate (21); A plurality of right-angled limiting plates (22) are mounted on the side walls of the base (19).

3. The leaf spring elastic strength detection device according to claim 2, characterized in that, A support column (23) is rotatably arranged on the top of the first slider (3). A turntable (24) is arranged on the outer wall of the support column (23). The outer end of the turntable (24) is fixed to the top of the first slider (3). A torsion spring (25) is fixed to the top of the support column (23). The support structure is fixed to the top of the torsion spring (25).

4. A leaf spring elastic strength detection device according to claim 3, characterized in that, The support structure includes a first bow-shaped frame (26) installed on the torsion spring (25). A second bow-shaped frame (27) is slidably arranged in the first bow-shaped frame (26). The opening of the second bow-shaped frame (27) faces downward. A second air cylinder (28) is installed on the top of the first bow-shaped frame (26). The movable end of the second air cylinder (28) is fixed to the top of the second bow-shaped frame (27). Pressing rollers (29) are rotatably installed on the inner walls of both the second bow-shaped frame (27) and the first bow-shaped frame (26). Arc-shaped limiting plates (30) are slidably arranged on both the left and right sides of the outer wall of the pressing roller (29) in the first bow-shaped frame (26). The arc-shaped limiting plates (30) are located between the pressing roller (29) on the first bow-shaped frame (26) and the pressing roller (29) on the second bow-shaped frame (27). A guide rod (31) and a pressing leaf spring (32) are installed on the side wall of the arc-shaped limiting plate (30). The outer end of the guide rod (31) passes through the first bow-shaped frame (26) and slides. The outer end of the pressing leaf spring (32) is fixed to the bottom of the second bow-shaped frame (27).

5. The leaf spring elastic strength detection device according to claim 4, characterized in that The guide rail (2) slides on the detection platform (1). A first adjustment structure is arranged on the left side of the detection platform (1). A second adjustment structure is arranged on the right side of the detection platform (1). The first adjustment structure and the second adjustment structure adjust the positions of both ends of the guide rail (2).

6. The leaf spring elastic strength detection device according to claim 5, characterized in that, The first adjustment structure includes a first chute (33) opened on the left side of the detection platform (1). Two fourth sliders (34) are slidably arranged in the first chute (33). Two first lead screws (35) are rotatably arranged in the first chute (33). The two first lead screws (35) are butted, and the spiral directions of the two first lead screws (35) are opposite. The first lead screw (35) passes through the fourth slider (34) and is screwed. A first motor (36) is installed on the outer wall of the detection platform (1). The output end of the first motor (36) is in transmission connection with the first lead screw (35). The top of the fourth slider (34) is rotatably connected to the left end of the guide rail (2).

7. An elastic strength detection device for a leaf spring according to claim 6, characterized in that, The second adjustment structure includes a second chute (37) opened on the right side of the detection platform (1). Sliding tooth rows (38) are slidably arranged on both the front and rear sides inside the second chute (37). An adjusting arm (39) is obliquely rotatably installed on the outer wall of the sliding tooth row (38). The outer end of the adjusting arm (39) is rotatably installed at the right end of the guide rail (2). A gear (40) is meshed with the teeth of the sliding tooth row (38). A second motor (41) is arranged on the gear (40). The second motor (41) is fixed to the detection platform (1).

8. A leaf spring elastic strength detection device according to claim 7, characterized in that, Both the front and rear side walls of the detection platform (1) are provided with third sliding grooves (42), and a fifth slider (43) is slidably arranged on the third sliding grooves (42). Third motors (44) are installed on both the front and rear side walls of the detection platform (1), and the output ends of the third motors (44) are provided with second lead screws (45). The second lead screws (45) pass through the fifth sliders (43) and are connected by screw threads; The end of the arcuate outer frame (4) is connected to the top of the fifth slider (43).

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