Device for detecting compression strength of automobile damping spring

Abstract

The invention provides an automobile damping spring compression rigidity detection device which comprises a spring feeding control system, a spring compression system, a spring deformation detection system, a spring discharging screening system, a digital control system and a rack. The spring feeding control system comprises a spring, a spring supporting plate, a side plate adjusting mechanism, a first blocking mechanism and a second blocking mechanism, the spring compression system comprises a rotary base mechanism, a spring radial positioning mechanism and a main pressing mechanism, and the spring deformation detection system comprises a push rod motor mechanism, a detection supporting plate mechanism, a deformation detection mechanism and a discharging port. The discharging screening system comprises a discharging supporting plate, a first discharging mechanism, a second discharging mechanism and a qualified product box, compression strength ultimate pressure detection and fatigue durability detection can be carried out on springs of different sizes at the same time, and screening is carried out on the deformation of the compressed springs in different interval ranges.

Description

Technical Field

[0001] The invention relates to the technical field of automobile spring detection, in particular to a compression strength detection device for an automobile shock absorbing spring. Background Art

[0002] Automobile shock-absorbing springs can effectively improve the ride comfort. When the road conditions are bad, the springs will be compressed. Unqualified springs are prone to excessive deformation after being compressed, and the stiffness cannot be guaranteed. The deformation of shock-absorbing springs changes with the working time, and fatigue damage is prone to occur, and reliability cannot be guaranteed. In the early stage of design, it is necessary to detect the deformation of the springs after being compressed to the limit and fatigue deformation under conventional pressure, and select springs with different deformation ranges to ensure that the stiffness and reliability of the springs meet the requirements after being compressed. The pressure during the spring detection process is high, and major safety hazards such as radial runout and deformation popping under compression are prone to occur. In the field of spring testing, the market lacks integrated equipment for spring limit pressure testing and fatigue durability testing. Based on this background, the integrated equipment for automobile shock-absorbing spring limit pressure testing and fatigue testing was invented. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a compression strength testing device for automobile shock absorber springs, which can simultaneously realize compression strength limit pressure testing and fatigue durability testing for springs of different sizes, and screen different ranges of deformation after spring compression.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A vehicle shock absorber spring compression stiffness detection device, characterized in that it comprises a spring feed control system, a spring compression system, a spring deformation detection system, a spring discharge screening system, a digital control system and a frame, wherein the spring feed control system, the spring compression system, the spring deformation detection system, the spring discharge screening system and the digital control system are respectively installed on the frame, and the spring feed control system, the spring compression system, the spring deformation detection system and the spring discharge screening system are respectively connected to the digital control system, The spring feed control system comprises a spring, a spring support plate, a side plate adjustment mechanism, a first blocking mechanism and a second blocking mechanism, the spring support plate comprises a bottom plate and a side plate, the side plates are vertically and movably mounted on both sides of the inclined bottom plate, a conveying channel for placing the spring is formed on the bottom plate, the spring is placed in the conveying channel for conveying, the side plate adjustment mechanism is installed under the bottom plate and connected to the side plate, controls the side plate to move along the width direction of the bottom plate, one end of the bottom plate is located at the feed port of the spring compression system, the first blocking mechanism and the second blocking mechanism are sequentially arranged between the bottom plate and the feed port, and the spring in the conveying channel sequentially passes through the first blocking mechanism and the second blocking mechanism into the feed port; The spring compression system includes a rotating base mechanism, a spring radial positioning mechanism and a main pressure mechanism, wherein the spring radial positioning mechanism is located above the rotating base mechanism, and the main pressure mechanism is located on one side of the rotating base. The rotating base mechanism includes a rotating tray and a rotating motor, wherein the rotating tray is installed below the feed port via a rotating shaft, and the output shaft of the rotating motor is connected to the rotating shaft. The spring radial positioning mechanism includes a cylinder, a positioning block push rod and a positioning block, wherein the cylinder is installed directly above the rotating tray, the positioning block is installed at one end of the positioning block push rod, and the other end of the positioning block push rod is installed on the cylinder arm of the cylinder. When the spring falls into the rotating tray, When the cylinder pushes the positioning block push rod and the positioning block radially compressing the spring thereon, the main pressure mechanism comprises a main pressure motor, a slider, a main pressure lead screw, a cylindrical guide rail, a push rod, a main pressure stop block and a limit block, the slider is slidably mounted on the cylindrical guide rail, the main pressure lead screw is connected to the output shaft of the main pressure motor, the main pressure lead screw passes through the slider and is transmission-connected to the slider, one end of the push rod is fixed on the slider, and the other end is connected to the main pressure stop block, the main pressure stop block is located on one side of the rotating pallet, the main pressure motor drives the slider to move through the main pressure lead screw, the slider drives the push rod to move therewith, and the push rod pushes the main pressure stop block to move toward the rotating pallet to compress the spring thereon; The spring deformation detection system includes a push rod motor mechanism, a detection support plate mechanism, a deformation detection mechanism and a discharge port, wherein the detection support plate mechanism is located below the rotating tray, the push rod motor mechanism and the deformation detection mechanism are respectively located on both sides of the detection tray mechanism, and the discharge port is located below the detection tray mechanism, the detection support plate mechanism includes a support plate motor and a spring tray, the spring tray is installed below the rotating tray through a rotating shaft, and the output shaft of the support plate motor is connected to the rotating shaft, The push rod motor mechanism includes a push rod motor, a lead screw push rod and a push rod baffle. The lead screw push rod is located on one side of the spring tray. One end of the lead screw push rod is connected to the push rod baffle, and the other end is connected to the output shaft of the push rod motor. The deformation detection mechanism includes a spring end support plate, an end support plate positioning shaft and a position sensor, wherein the spring end support plate is movably mounted on the other side of the spring tray through the end support plate positioning shaft and is arranged opposite to the push rod baffle, and the position sensor is located below the end support plate positioning shaft. When the push rod motor drives the push rod baffle to push the spring located on the spring tray through the lead screw push rod, the spring pushes the spring end support plate to move rightward, and the spring end support plate drives the end support plate positioning shaft to move accordingly. The position sensor detects the moving distance of the end support plate positioning shaft and feeds back the detected distance to the digital control system, and the digital control system calculates the deformation amount of the spring after compression according to the initial data of the spring and the detection distance, and determines the interval range of the deformation amount of the spring after compression according to the user-set requirements; The discharging screening system comprises a discharging support plate, a first discharging mechanism, a second discharging mechanism and a qualified product box, wherein the discharging support plate is located below the discharging port, the discharging support plate is connected to the qualified product box through a discharging plate, and the first discharging mechanism and the second discharging mechanism are sequentially arranged on the discharging plate along the spring discharging direction. The digital control system determines the range of deformation of the spring after compression according to preset conditions. If the deformation is greater than 2 mm, the first discharging mechanism is opened to output the spring from the first discharging mechanism. If the deformation is in the range of 0-2 mm, the second discharging mechanism is opened to output the spring from the second discharging mechanism. If the deformation is 0 mm, both the first discharging mechanism and the second discharging mechanism are in a closed state, and the spring enters a qualified product box.

[0005] In the above structure: the present invention proposes a vehicle shock absorbing spring compression stiffness detection device, which is characterized by comprising a spring feeding control system, a spring compression system, a spring deformation detection system, a spring discharging screening system, a digital control system and a frame, Among them, the spring feeding control system can detect springs of different sizes. The double protection structure of the first blocking mechanism and the second blocking mechanism is used to effectively ensure the safety of feeding. The spring feeding control system includes springs to be conveyed, spring support plates, and side plate adjustment mechanisms. The spring support plates are used to place the springs to be conveyed. The spring support plates include a bottom plate and side plates. The side plates are vertically and movably installed on both sides of the inclined bottom plate. A conveying channel for placing the springs is formed on the bottom plate. The springs to be conveyed are placed in the conveying channel for conveying. The spring support plates are inclined to facilitate the automatic sliding of the springs thereon. The side plate adjustment mechanism can adjust the position of the side plates to realize the feeding positioning of springs of different sizes. The first blocking mechanism and the second blocking mechanism are used to control the spring to enter the feed port. The timing of the spring entering the compression system is controlled by the first blocking mechanism and the second blocking mechanism.

[0006] The spring compression system can axially compress the spring according to the set pressure to ensure that the spring has no radial runout, deformation and other problems. It includes a rotating base mechanism, a spring radial positioning mechanism and a main pressure mechanism, wherein the rotating base mechanism includes a rotating tray and a rotating motor; the spring radial positioning mechanism includes a cylinder, a positioning block push rod and a positioning block; the main pressure mechanism includes a main pressure motor, a slider, a main pressure screw, a cylindrical guide rail, a push rod, a main pressure stopper and a limit block. The main pressure motor drives the main pressure screw to rotate, and the main pressure screw drives the slider to move on the cylindrical guide rail. The slider pushes the main pressure stopper to compress the spring to the right. During compression, the spring radial positioning cylinder pushes the push rod to move downward, and a positioning block is installed at the end of the push rod to radially position the compressed spring. The rotating tray contains 4 trays, and the rotating shaft is driven by the rotating motor to drive the rotating tray on the rotating shaft to rotate. When the spring compression is completed, the rotating tray rotates 90 degrees, and the compressed spring enters the deformation detection system. At the same time, the feed port is opened, and the uncompressed spring enters the new rotating tray to start the next round of spring compression.

[0007] The spring deformation detection system is mainly used to detect the length value of the compressed spring, and calculate the deformation of the compressed spring based on the value. It includes a push rod motor mechanism, a detection support plate mechanism, a deformation detection mechanism and a discharge port. The detection support plate mechanism is located below the rotating tray, and the push rod motor mechanism and the deformation detection mechanism are respectively located on both sides of the detection tray mechanism. The discharge port is located below the detection tray mechanism. The push rod motor mechanism includes a push rod motor, a lead screw push rod, and a push rod baffle; the detection support plate mechanism includes a support plate motor and a spring tray; the deformation detection mechanism includes a spring end support plate, an end support plate positioning shaft, and a position sensor. The push rod motor drives the screw push rod to rotate, pushing the push rod baffle to the right to push the spring to the spring end support plate. The undamped end support positioning shaft pushes the spring end support plate to the right with the spring. The position sensor detects the moving distance of the end support plate positioning shaft and feeds back the detection distance to the digital control system. The central processor of the digital control system calculates the deformation of the spring after compression based on the initial data of the spring and the detection distance, and determines the range of the deformation of the spring after compression according to the user's set requirements. After the detection is completed, the pallet motor of the detection pallet mechanism works, the spring tray rotates 90 degrees, the discharge port opens, and the spring enters the discharge screening system for screening.

[0008] The discharging screening system is connected to the digital control system, and includes a discharging pallet, a first discharging mechanism, a second discharging mechanism and a qualified product box, wherein the discharging pallet is connected to the qualified product box through a discharging plate, and the first discharging mechanism and the second discharging mechanism are sequentially arranged on the discharging plate along the spring discharging direction. When screening, the digital control system determines the range of the deformation amount of the spring after compression according to preset conditions. If the deformation amount is greater than 2mm, the first discharging mechanism is opened and the spring is output from the first discharging mechanism. If the deformation amount is in the range of 0-2mm, the second discharging mechanism is opened and the spring is output from the second discharging mechanism. If the deformation amount is 0mm, the first discharging mechanism and the second discharging mechanism are both in a closed state, and the spring enters the qualified product box.

[0009] The digital control system mainly controls the working state of the first blocking mechanism and the second blocking mechanism in the spring feeding system according to the input start command or the compression end command of the spring compression system, thereby controlling the timing of the spring entering the rotating tray of the spring compression system. According to the input pressure value, the working state of the main pressure motor of the spring compression system is controlled, thereby controlling the size of the spring compression force, the compression time and the compression pressure application and release speed, so that the spring compression process meets the target requirements, thereby ensuring the effectiveness of the spring compression; according to the initial spring size data and the main pressure motor work start signal, the working state of the cylinder in the spring radial positioning mechanism is controlled, thereby realizing radial positioning of the spring during the compression process, avoiding radial runout, deformation and radial dislocation during the spring compression process, thereby ensuring the reliability of the pressure transmission of the spring compression and the safety of the work; according to the stop signal of the main pressure motor, the working state of the rotating motor in the rotating base mechanism is controlled, so that the rotating tray of the rotating base mechanism rotates 90 degrees, so that the compressed spring rolls onto the spring tray of the spring deformation detection system, and at the same time, the adjacent tray on the rotating tray is in the best position to carry the compressed spring, ready to carry the entry of the uncompressed spring in the spring feeding system, and complete the next round of spring compression; according to the spring deformation detection system, the presence of the spring on the spring tray is detected The position sensor of the deformation detection mechanism detects the moving distance of the positioning axis of the end support plate, and feeds back the value to the digital control system. The central processor in the digital control system calculates the deformation of the spring before and after compression, determines the range of the deformation after the spring is compressed, and feeds back the corresponding result to the discharging screening system; according to the deformation detection completion signal, the working state of the spring tray is controlled, so that the spring after the deformation detection is completed enters the discharging screening system; according to the deformation after the spring is compressed and the user's setting requirements, the range of the deformation after the spring is compressed is determined. If the deformation is greater than 2mm, the first discharging mechanism is opened to output the spring from the first discharging mechanism; if the deformation is in the range of 0-2mm, the second discharging mechanism is opened to output the spring from the second discharging mechanism; if the deformation is 0mm, the first discharging mechanism and the second discharging mechanism are both in a closed state, and the spring enters the qualified product box.

[0010] The spring compression system in the present invention adopts a servo-controlled main pressure motor, which drives the screw push rod through the rotation of the motor main shaft, and compresses the spring through the thrust of the screw push rod. By controlling the rotation time of the motor, the movement distance of the screw push rod can be controlled, thereby controlling the pressure value of the spring compression, and performing a spring compression limit pressure test. By controlling the number of rotations of the motor main shaft, the number of times the spring is compressed can be controlled, thereby performing a fatigue durability test, and achieving the goal of completing both the spring limit pressure test and the fatigue durability test on this device.

[0011] If the pressure used in the process of spring compression strength testing is high, major safety hazards such as radial runout, deformation and popping out of the spring under pressure are likely to occur. The spring feed control system in the present invention adopts a double protection structure of a feed blocking cylinder and a feed blocking baffle to effectively ensure the safety of feeding; the spring compression system in the present invention, by designing a spring radial positioning mechanism, realizes radial positioning of the spring during the compression process, avoids radial runout, deformation and radial dislocation during the spring compression process, and ensures the reliability of pressure transmission of the spring compression and the safety of work.

[0012] As a preferred technical solution of the present invention: the first blocking mechanism includes a feed blocking cylinder and a cylinder fixing plate, one end of the cylinder fixing plate is fixed on the spring compression system, the feed blocking cylinder is installed on the cylinder fixing plate and is located between the second blocking mechanism and the spring on the conveying channel, when the spring needs to pass through the first feed blocking mechanism, the cylinder arm of the feed blocking cylinder contracts, and the spring passes through the first blocking mechanism and enters the second blocking mechanism.

[0013] In the above structure: the first blocking mechanism includes a feed blocking cylinder and a cylinder fixing plate, the cylinder fixing plate is used to realize the installation and fixation of the feed blocking cylinder, and the first blocking of the conveying spring can be realized by the feed blocking cylinder. When the spring needs to pass through the first feed blocking mechanism, the cylinder arm of the feed blocking cylinder contracts, and the spring passes through the first blocking mechanism and enters the second blocking mechanism.

[0014] As a preferred technical solution of the present invention: the second blocking mechanism includes a feed blocking motor and a feed blocking baffle, the feed blocking baffle is movably installed on the feed port, the output shaft of the feed blocking motor is connected to the feed blocking baffle, when the spring needs to pass through the second blocking mechanism, the output shaft of the feed blocking motor rotates, driving the feed blocking baffle to flip, and the spring falls into the feed port.

[0015] In the above structure: the second blocking mechanism includes a feed blocking motor and a feed blocking baffle, and the feed blocking baffle can be used to achieve a second blocking of the conveying spring. When the spring needs to pass through the second blocking mechanism, the output shaft of the feed blocking motor rotates, driving the feed blocking baffle to flip, and the spring falls into the feed port. The double blocking device is set up to effectively ensure the safety of feeding.

[0016] As a preferred technical solution of the present invention: the spring feed control system also includes a support plate bracket, one end of the support plate bracket is fixed on the spring compression system, and the spring support plate is fixed above the support plate bracket.

[0017] In the above structure: the support plate bracket is used to fix the spring support plate and to install the spring support plate at an angle.

[0018] As a preferred technical solution of the present invention: the spring compression system also includes an upper cover plate, the cylinder is fixedly mounted on the upper cover plate, a through hole is also opened on the upper cover plate, and the positioning block push rod is movably mounted in the through hole and located on both sides of the cylinder.

[0019] In the above structure: the upper cover plate is used to realize the installation and fixation of the cylinder and the positioning block push rod, so that they can be fixed above the rotating tray.

[0020] As a preferred technical solution of the present invention: the spring compression system also includes a limit block and a limit rod, one end of the limit rod is fixed on the frame, and the limit block is fixed on the other end of the limit rod. When the slider moves to a preset position, the limit block supports the slider.

[0021] In the above structure: the limit rod is used to prevent the slider from excessive movement. When the slider moves to the preset position, the limit block supports the slider. The limit block on the limit rod can increase the contact area between the limit rod and the slider, so that its blocking effect is better.

[0022] As a preferred technical solution of the present invention: the spring compression system also includes a protective cover, and the protective cover is sleeved on the spring end support plate.

[0023] In the above structure: the protective cover is sleeved on the spring end support plate to protect the position sensor therein.

[0024] As a preferred technical solution of the present invention: the first discharging mechanism includes a first discharging port servo motor, a first discharging baffle and a first slide slot, the first discharging baffle is movably mounted on the discharging plate through a rotating shaft, the output shaft of the first discharging port servo motor is connected to the rotating shaft, and the first slide slot is located directly below the first discharging baffle.

[0025] As a preferred technical solution of the present invention: the second discharging mechanism includes a second discharging port servo motor, a second discharging baffle and a second slide slot, the second discharging baffle is movably mounted on the discharging plate through a rotating shaft, the output shaft of the second discharging port servo motor is connected to the rotating shaft, and the second slide slot is located directly below the second discharging baffle.

[0026] In the above structure: the first discharging mechanism and the second discharging mechanism are both used to screen springs of different diameters, the first discharging mechanism includes a first discharging port servo motor, a first discharging baffle and a first chute, the second discharging mechanism includes a second discharging port servo motor, a second discharging baffle and a second chute, the digital control system determines the range of the deformation of the spring after compression according to the deformation amount of the spring after compression and the user setting requirements, if the deformation amount is greater than 2mm, the first discharging port servo motor works, the first discharging baffle opens, and the spring enters the first chute, if the deformation amount is in the range of 0-2mm, the second discharging port servo motor works, the second discharging baffle opens, and the spring enters the second chute, if the deformation amount is 0mm, the first discharging port servo motor and the second discharging port servo motor are both in a closed state, the first discharging baffle and the second discharging baffle are not opened, and the spring enters the qualified product box.

[0027] Compared with the prior art, the present invention has the following beneficial effects: The adjustment of the side plates of the feeding system of the present invention can realize compression strength limit pressure testing and fatigue endurance testing of springs of different sizes. The double protection structure of the feeding blocking cylinder and the feeding blocking motor baffle is adopted to effectively ensure the safety of feeding. The compression system adopts a rotary 4-tray positioning structure to realize the automatic entry of the spring from the compression area to the detection area, which effectively improves the production efficiency; the spring radial positioning system solves the problem of radial dislocation of the spring due to high pressure during the spring compression process, and ensures the safety of compression. The discharging screening system is equipped with 3 discharging ports with deformation ranges to realize the functionality and qualification screening of spring detection. The present invention can effectively complete the integrated testing of compression strength limit pressure and fatigue endurance of springs of different sizes, with a high degree of automation and safety, and greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 This is the schematic diagram of the feeding system structure in this application Figure Ⅰ ; Figure 3 This is the schematic diagram of the feeding system structure in this application Figure II ; Figure 4 This is a schematic diagram of the compression system structure in this application Figure Ⅰ ; Figure 5 This is a schematic diagram of the compression system structure in this application Figure II ; Figure 6 This is a schematic diagram of the detection system structure in this application Figure Ⅰ ; Figure 7 This is a schematic diagram of the detection system structure in this application Figure II ; Figure 8 This is the schematic diagram of the discharge screening system structure in this application Figure Ⅰ ; Fig. 9 This is the schematic diagram of the discharge screening system structure in this application Figure II .

[0029] List of reference numerals: 1. Spring feed control system; 2. Spring compression system; 3. Spring deformation detection system; 4. Spring discharge screening system; 5. Digital control system; 6. Rack; 7. Spring; 8. Spring support plate; 9. Support plate bracket; 10. Side plate adjustment mechanism; 11. Side plate; 12. Unloading blocking cylinder; 13. Feed blocking motor; 14. Feed blocking baffle; 15. Rotating tray; 16. Rotating motor; 17. Cylinder; 18. Positioning block push rod; 19. Positioning block; 20. Upper cover plate; 21. Main pressure motor; 22. Slider; 23. Main pressure screw; 24 , cylindrical guide rail; 25, push rod; 26, main pressure block; 27, limit block; 28, push rod motor; 29, screw push rod; 30, support plate motor; 31, spring tray; 32, spring end support plate; 33, push rod baffle; 34, end support plate positioning shaft; 35, position sensor; 36, discharge port; 37, discharge support plate; 38, first discharge port servo motor; 39, first discharge baffle; 40, second discharge port servo motor; 41, second discharge baffle; 42, first slide; 43, second slide; 44, qualified product box; 45, protective cover. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: like Figure 1-9 As shown, the present invention proposes a vehicle shock-absorbing spring compression stiffness detection device, comprising a spring feeding control system 1, a spring compression system 2, a spring deformation detection system 3, a spring discharging screening system 4, a digital control system 5 and a frame 6, wherein the spring feeding control system 1, the spring compression system 2, the spring deformation detection system 3, the spring discharging screening system 4 and the digital control system 5 are respectively installed on the frame 6, and the spring feeding control system 1, the spring compression system 2, the spring deformation detection system 3 and the spring discharging screening system 4 are respectively connected to the digital control system 5, The spring feed control system 1 includes a spring 7, a spring support plate 8, a side plate adjustment mechanism 10, a first blocking mechanism and a second blocking mechanism. The spring support plate 8 includes a bottom plate and a side plate 11. The side plates 11 are vertically and movably mounted on both sides of the inclined bottom plate. A conveying channel for placing the spring 7 is formed on the bottom plate. The spring 7 is placed in the conveying channel for conveying. The side plate adjustment mechanism 10 is installed below the bottom plate and connected to the side plate 11 to control the side plate 11 to move along the width direction of the bottom plate. One end of the bottom plate is located at the feed port of the spring compression system 2. The first blocking mechanism and the second blocking mechanism are sequentially arranged between the bottom plate and the feed port. The spring 7 in the conveying channel enters the feed port through the first blocking mechanism and the second blocking mechanism in turn. The spring compression system 2 includes a rotating base mechanism, a spring radial positioning mechanism and a main pressure mechanism, wherein the spring radial positioning mechanism is located above the rotating base mechanism, and the main pressure mechanism is located on one side of the rotating base. The rotating base mechanism includes a rotating tray 15 and a rotating motor 16, wherein the rotating tray 15 is installed below the feed port via a rotating shaft, and the output shaft of the rotating motor 16 is connected to the rotating shaft. The spring radial positioning mechanism includes a cylinder 17, a positioning block push rod 18 and a positioning block 19, wherein the cylinder 17 is installed directly above the rotating tray 15, the positioning block 19 is installed at one end of the positioning block push rod 18, and the other end of the positioning block push rod 18 is installed on the cylinder arm of the cylinder 17, and when the spring 7 falls into the rotating tray 15, the cylinder 17 pushes the positioning block push rod 18 and the positioning block 19 thereon radially compress the spring 7, the main pressure mechanism includes a main pressure motor 21, a slider 22, a main pressure screw 23, a cylindrical guide rail 24, a push rod 25, a main pressure stop block 26 and a limit block 27, the slider 22 is slidably installed on the cylindrical guide rail 24, the main pressure screw 23 is connected to the output shaft of the main pressure motor 21, the main pressure screw 23 passes through the slider 22 and is transmission-connected to the slider 22, one end of the push rod 25 is fixed on the slider 22, and the other end is connected to the main pressure stop block 26, the main pressure stop block 26 is located on one side of the rotating tray 15, the main pressure motor 21 drives the slider 22 to move through the main pressure screw 23, the slider 22 drives the push rod 25 to move therewith, and the push rod 25 pushes the main pressure stop block 26 to move toward the rotating tray 15 to compress the spring 7 thereon; The spring deformation detection system 3 includes a push rod motor mechanism, a detection pallet mechanism, a deformation detection mechanism and a discharge port 36. The detection pallet mechanism is located below the rotating pallet 15. The push rod motor mechanism and the deformation detection mechanism are respectively located on both sides of the detection pallet mechanism. The discharge port 36 is located below the detection pallet mechanism. The detection pallet mechanism includes a pallet motor 30 and a spring 7 pallet. The spring 7 pallet is installed below the rotating pallet 15 through a rotating shaft. The output shaft of the pallet motor 30 is connected to the rotating shaft. The push rod motor mechanism includes a push rod motor 28, a lead screw push rod 29 and a push rod baffle 33. The lead screw push rod 29 is located on one side of the spring 7 tray. One end of the lead screw push rod 29 is connected to the push rod baffle 33, and the other end is connected to the output shaft of the push rod motor 28. The deformation detection mechanism includes a spring end support plate 32, an end support plate positioning shaft 34 and a position sensor 35. The spring end support plate 32 is movably mounted on the other side of the spring 7 tray through the end support plate positioning shaft 34 and is arranged opposite to the push rod baffle 33. The position sensor 35 is located below the end support plate positioning shaft 34. When the push rod motor 28 drives the push rod baffle 33 to push the spring 7 located on the spring 7 tray through the screw push rod 29, the spring 7 pushes the spring end support plate 32 to move rightward, and the spring end support plate 32 drives the end support plate positioning shaft 34 to move accordingly. The position sensor 35 detects the moving distance of the end support plate positioning shaft 34 and feeds back the detected distance to the digital control system 5. The digital control system 5 calculates the deformation amount of the spring 7 after compression according to the initial data of the spring 7 and the detection distance, and determines the range of the deformation amount of the spring 7 after compression according to the user's setting requirements; The discharging screening system includes a discharging support plate 37, a first discharging mechanism, a second discharging mechanism and a qualified product box 44. The discharging support plate 37 is located below the discharging port 36. The discharging support plate 37 is connected to the qualified product box 44 through a discharging plate. The first discharging mechanism and the second discharging mechanism are sequentially arranged on the discharging plate along the discharging direction of the spring 7. The digital control system 5 determines the range of the deformation of the spring 7 after compression according to the preset conditions. If the deformation is greater than 2 mm, the first discharging mechanism is opened and the spring 7 is output from the first discharging mechanism. If the deformation is in the range of 0-2 mm, the second discharging mechanism is opened and the spring 7 is output from the second discharging mechanism. If the deformation is 0 mm, both the first discharging mechanism and the second discharging mechanism are in a closed state, and the spring 7 enters the qualified product box 44.

[0031] The first blocking mechanism includes a feed blocking cylinder 12 and a cylinder fixing plate, one end of the cylinder fixing plate is fixed on the spring compression system 2, the feed blocking cylinder 12 is installed on the cylinder fixing plate and is located between the second blocking mechanism and the spring 7 on the conveying channel, when the spring 7 needs to pass through the first feed blocking mechanism, the cylinder arm of the feed blocking cylinder 12 contracts, and the spring 7 passes through the first blocking mechanism and enters the second blocking mechanism.

[0032] The second blocking mechanism includes a feed blocking motor 13 and a feed blocking baffle 14, and the feed blocking baffle 14 is movably installed on the feed port. The output shaft of the feed blocking motor 13 is connected to the feed blocking baffle 14. When the spring 7 needs to pass through the second blocking mechanism, the output shaft of the feed blocking motor 13 rotates, driving the feed blocking baffle 14 to flip, and the spring 7 falls into the feed port.

[0033] The spring feed control system 1 further comprises a support plate bracket 9 , one end of which is fixed on the spring compression system 2 , and the spring support plate 8 is fixed above the support plate bracket 9 .

[0034] The spring compression system 2 further comprises an upper cover plate 20 , the cylinder 17 is fixedly mounted on the upper cover plate 20 , a through hole is also provided on the upper cover plate 20 , and the positioning block push rod 18 is movably mounted in the through hole and is located on both sides of the cylinder 17 .

[0035] The spring compression system 2 further includes a limit block 27 and a limit rod, one end of the limit rod is fixed on the frame 6, and the limit block 27 is fixed on the other end of the limit rod. When the slider 22 moves to a preset position, the limit block 27 supports the slider 22.

[0036] The spring compression system 2 further includes a protective cover 45 , which is sleeved on the spring end support plate 32 .

[0037] The first discharging mechanism includes a first discharging port servo motor 38, a first discharging baffle 39 and a first slide chute 42. The first discharging baffle 39 is movably mounted on the discharging plate through a rotating shaft. The output shaft of the first discharging port servo motor 38 is connected to the rotating shaft. The first slide chute 42 is located directly below the first discharging baffle 39.

[0038] The second discharging mechanism includes a second discharging port servo motor 40, a second discharging baffle 41 and a second slide chute 43. The second discharging baffle 41 is movably mounted on the discharging plate through a rotating shaft. The output shaft of the second discharging port servo motor 40 is connected to the rotating shaft. The second slide chute 43 is located directly below the second discharging baffle 41.

[0039] The present invention provides a vehicle shock absorbing spring compression stiffness detection device, which is characterized by comprising a spring feeding control system 1, a spring compression system 2, a spring deformation detection system 3, a spring discharging screening system 4, a digital control system 5 and a frame 6. Among them, the spring feeding control system 1 can detect springs 7 of different sizes. The double protection structure of the first blocking mechanism and the second blocking mechanism is used to effectively ensure the safety of feeding. The spring feeding control system 1 includes a spring 7 to be conveyed, a spring support plate 8, and a side plate adjustment mechanism 10. The spring support plate 8 is used to place the spring 7 to be conveyed. The spring support plate 8 includes a bottom plate and a side plate 11. The side plates 11 are vertically and movably installed on both sides of the inclined bottom plate. A conveying channel for placing the spring 7 is formed on the bottom plate. The spring 7 to be conveyed is placed in the conveying channel for conveying. The spring support plate 8 is inclined to facilitate the automatic sliding of the spring 7 thereon. The side plate adjustment mechanism 10 can adjust the position of the side plate 11 to realize the feeding positioning of springs 7 of different sizes. The first blocking mechanism and the second blocking mechanism are used to control the spring 7 to enter the feed port, and the timing of the spring 7 entering the compression system is controlled by the first blocking mechanism and the second blocking mechanism.

[0040] The spring compression system 2 can axially compress the spring 7 according to the set pressure to ensure that the spring 7 has no radial runout, deformation and other problems. It includes a rotating base mechanism, a spring radial positioning mechanism and a main pressure mechanism, wherein the rotating base mechanism includes a rotating tray 15 and a rotating motor 16; the spring radial positioning mechanism includes a cylinder 17, a positioning block push rod 18, and a positioning block 19; the main pressure mechanism includes a main pressure motor 21, a slider 22, a main pressure screw 23, a cylindrical guide rail 24, a push rod 25, a main pressure stop block 26, and a limit block 27. The main pressure motor 21 drives the main pressure screw 23 to rotate, and the main pressure screw 23 drives the slider 22 to rotate. The spring 7 moves on the cylindrical guide rail 24, and the slider 22 pushes the main pressure stopper 26 to compress the spring 7 to the right. During compression, the radial positioning cylinder 17 of the spring 7 pushes the push rod 25 to move downward. The positioning block 19 is installed at the end of the push rod 25 to radially position the compressed spring 7. The rotating tray 15 contains 4 trays, and the rotating shaft is driven by the rotating motor 16 to drive the rotating tray 15 on the rotating shaft to rotate. When the compression of the spring 7 is completed, the rotating tray 15 rotates 90 degrees, and the compressed spring 7 enters the deformation detection system. At the same time, the feed port is opened, and the uncompressed spring 7 enters the new rotating tray 15 to start the next round of spring 7 compression.

[0041] The spring deformation detection system 3 is mainly used to detect the length value of the spring 7 after compression, and calculate the deformation of the spring 7 after compression. It includes a push rod motor mechanism, a detection support plate mechanism, a deformation detection mechanism and a discharge port 36. The detection support plate mechanism is located below the rotating tray 15, and the push rod motor mechanism and the deformation detection mechanism are respectively located on both sides of the detection tray mechanism. The discharge port 36 is located below the detection tray mechanism. The push rod motor mechanism includes a push rod motor 28, a screw push rod 29, and a push rod baffle 33; the detection support plate mechanism includes a support plate motor 30 and a spring 7 tray; the deformation detection mechanism includes a spring end support plate 32, an end support plate positioning shaft 34, and a position sensor 35. The push rod motor 28 drives the screw push rod 25 to rotate, pushing the push rod baffle 33 to push the spring 7 to the right to the spring end support plate 32. The undamped end support positioning shaft pushes the spring end support plate 32 to move to the right with the spring 7. The position sensor 35 detects the moving distance of the end support plate positioning shaft 34 and feeds back the detected distance to the digital control system 5. The central processor of the digital control system 5 calculates the deformation amount of the spring 7 after compression according to the initial data of the spring 7 and the detection distance, and determines the range of the deformation amount of the spring 7 after compression according to the user's setting requirements. After the detection is completed, the pallet motor 30 of the detection pallet mechanism works, the spring 7 tray rotates 90 degrees, the discharge port 36 opens, and the spring 7 enters the discharge screening system for screening.

[0042] The discharging screening system is connected to the digital control system 5, and includes a discharging pallet 37, a first discharging mechanism, a second discharging mechanism and a qualified product box 44, wherein the discharging pallet 37 is connected to the qualified product box 44 through a discharging plate, and the first discharging mechanism and the second discharging mechanism are sequentially arranged on the discharging plate along the discharging direction of the spring 7. When screening, the digital control system 5 determines the range of the deformation amount of the spring 7 after compression according to the preset conditions. If the deformation amount is greater than 2mm, the first discharging mechanism is opened and the spring 7 is output from the first discharging mechanism. If the deformation amount is in the range of 0-2mm, the second discharging mechanism is opened and the spring 7 is output from the second discharging mechanism. If the deformation amount is 0mm, the first discharging mechanism and the second discharging mechanism are both in a closed state, and the spring 7 enters the qualified product box 44.

[0043] The digital control system 5 mainly controls the working state of the first blocking mechanism and the second blocking mechanism in the spring 7 feeding system according to the input start command or the compression end command of the spring compression system 2, thereby controlling the timing of the spring 7 entering the rotating tray 15 of the spring compression system 2. According to the input pressure value, the working state of the main pressure motor 21 of the spring compression system 2 is controlled, so as to control the size of the compression force of the spring 7, the compression time and the speed of applying and releasing the compression pressure, so that the compression process of the spring 7 meets the target requirements, thereby ensuring the effectiveness of the compression of the spring 7; according to the initial spring 7 size data and the working start signal of the main pressure motor 21, the working state of the cylinder 17 in the spring radial positioning mechanism is controlled, so as to realize the radial positioning of the spring 7 during the compression process, avoid radial runout, deformation, radial dislocation and other problems during the compression of the spring 7, thereby ensuring the reliability of the pressure transmission of the spring 7 compression and the safety of the work; according to the stop signal of the main pressure motor 21, the working state of the rotating motor 16 in the rotating base mechanism is controlled, so that the rotating tray 15 of the rotating base mechanism is rotated 90 degrees, so that the compressed spring 7 rolls onto the spring 7 tray of the spring deformation detection system 3, and at the same time, the adjacent tray on the rotating tray 15 is in the best position to carry the compressed spring 7, ready to carry the entry of the uncompressed spring 7 in the spring 7 feeding system, and complete the next round of spring 7 compression work; according to the spring deformation detection system 3, the spring on the spring 7 tray is detected 7 has a signal, controls the working state of the push rod motor 28 in the deformation detection system, pushes the compressed spring 7 into the deformation detection mechanism through the lead screw push rod 29 and the push rod baffle 33, the position sensor 35 of the deformation detection mechanism detects the moving distance of the end support plate positioning shaft 34, and feeds back the value to the digital control system 5, the central processor in the digital control system 5 calculates the deformation of the spring 7 before and after compression, judges the range of the deformation of the spring 7 after compression, and feeds back the corresponding result to the discharging screening system; according to the deformation detection completion signal, controls the working state of the spring 7 tray, so that the spring 7 after the deformation detection is completed enters the discharging screening system; according to the deformation of the spring 7 after compression and the user setting requirements, judges the range of the deformation of the spring 7 after compression, if the deformation is greater than 2mm, the first discharging mechanism is opened, and the spring 7 is output from the first discharging mechanism, if the deformation is in the range of 0-2mm, the second discharging mechanism is opened, and the spring 7 is output from the second discharging mechanism, if the deformation is 0mm, the first discharging mechanism and the second discharging mechanism are both in a closed state, and the spring 7 enters the qualified product box 44.

[0044] The spring compression system 2 in the present invention adopts a servo-controlled main pressure motor 21, and drives the screw push rod 29 through the rotation of the motor main shaft, and compresses the spring 7 through the thrust of the screw push rod 29. By controlling the rotation time of the motor, the movement distance of the screw push rod 29 can be controlled, thereby controlling the pressure value of the compression of the spring 7, and performing a compression limit pressure test of the spring 7. By controlling the number of rotations of the motor main shaft, the number of times the spring 7 is compressed can be controlled, thereby performing a fatigue durability test, and achieving the goal that both the spring 7 limit pressure test and the fatigue durability test are completed on this device.

[0045] If the pressure used in the process of testing the compression strength of the spring 7 is high, major safety hazards such as radial runout, deformation and popping out of the spring 7 under pressure are likely to occur. The spring feed control system 1 in the present invention adopts a double protection structure of a feed blocking cylinder 12 and a feed blocking baffle 14 to effectively ensure the safety of the feed; the spring compression system 2 in the present invention, by designing a spring radial positioning mechanism, realizes radial positioning of the spring 7 during the compression process, avoids radial runout, deformation and radial dislocation during the compression process of the spring 7, and ensures the reliability of the pressure transmission of the compressed spring 7 and the safety of the operation.

[0046] In this embodiment: the first blocking mechanism includes a feed blocking cylinder 12 and a cylinder fixing plate, the cylinder fixing plate is used to realize the installation and fixation of the feed blocking cylinder 12, and the first blocking of the conveying spring 7 can be realized by the feed blocking cylinder 12. When the spring 7 needs to pass through the first feed blocking mechanism, the cylinder arm of the feed blocking cylinder 12 contracts, and the spring 7 passes through the first blocking mechanism and enters the second blocking mechanism.

[0047] In this embodiment: the second blocking mechanism includes a feed blocking motor 13 and a feed blocking baffle 14. The feed blocking baffle 14 can be used to achieve a second blocking of the conveying spring 7. When the spring 7 needs to pass through the second blocking mechanism, the output shaft of the feed blocking motor 13 rotates, driving the feed blocking baffle 14 to flip, and the spring 7 falls into the feed port. The double blocking device is set up to effectively ensure the safety of feeding.

[0048] In this embodiment: the support plate bracket 9 is used to fix the spring support plate 8 and to install the spring support plate 8 at an angle.

[0049] In this embodiment, the upper cover plate 20 is used to install and fix the cylinder 17 and the positioning block push rod 18 so that they can be fixed above the rotating tray 15 .

[0050] In this embodiment: the limit rod is used to prevent the slider 22 from excessive movement. When the slider 22 moves to the preset position, the limit block 27 supports the slider 22. The limit block 27 on the limit rod can increase the contact area between the limit rod and the slider 22, so that its blocking effect is better.

[0051] In this embodiment, the protective cover 45 is sleeved on the spring end support plate 32 to protect the position sensor 35 therein.

[0052] In this embodiment: the first discharging mechanism and the second discharging mechanism are both used to screen springs 7 of different diameters. The first discharging mechanism includes a first discharging port servo motor 38, a first discharging baffle 39 and a first chute 42. The second discharging mechanism includes a second discharging port servo motor 40, a second discharging baffle 41 and a second chute 43. The digital control system 5 determines the range of the deformation of the spring 7 after compression according to the deformation amount of the spring 7 and the user's setting requirements. If the deformation amount is greater than 2 mm, the first discharging port servo motor 38 works, the first discharging baffle 39 opens, and the spring 7 enters the first chute 42. If the deformation amount is in the range of 0-2 mm, the second discharging port servo motor 40 works, the second discharging baffle 41 opens, and the spring 7 enters the second chute 43. If the deformation amount is 0 mm, the first discharging port servo motor 38 and the second discharging port servo motor 40 are both in a closed state, the first discharging baffle 39 and the second discharging baffle 41 are not opened, and the spring 7 enters the qualified product box 44.

[0053] The adjustment of the side plate 11 of the feeding system of the present invention can realize the compression strength limit pressure test and fatigue endurance test of springs 7 of different sizes. The double protection structure of the feeding blocking cylinder 12 and the feeding blocking motor 13 baffle effectively ensures the safety of feeding. The compression system adopts a rotary 4-tray positioning structure to realize the automatic entry of the spring 7 from the compression area to the detection area, effectively improving the production efficiency; the radial positioning system of the spring 7 solves the problem of radial dislocation of the spring 7 due to high pressure during the compression of the spring 7, ensuring the safety of compression. The discharging screening system is equipped with a discharging port 36 with 3 deformation ranges to realize the functionality and qualification screening of the spring 7. The present invention can effectively complete the integrated detection of compression strength limit pressure and fatigue endurance of springs 7 of different sizes, with a high degree of automation and safety, and greatly reduces the production cost.

[0054] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A compression stiffness detection device for automobile shock absorbing springs, characterized in that: The invention comprises a spring feeding control system (1), a spring compression system (2), a spring deformation detection system (3), a spring discharging screening system (4), a digital control system (5) and a frame (6), wherein the spring feeding control system (1), the spring compression system (2), the spring deformation detection system (3), the spring discharging screening system (4) and the digital control system (5) are respectively installed on the frame (6), and the spring feeding control system (1), the spring compression system (2), the spring deformation detection system (3) and the spring discharging screening system (4) are respectively connected to the digital control system (5). The spring feeding control system comprises a spring (7), a spring support plate (8), a side plate adjustment mechanism (10), a first blocking mechanism and a second blocking mechanism. The spring support plate (8) comprises a bottom plate and a side plate (11). The side plates (11) are vertically and movably mounted on both sides of the bottom plate which is inclined. A conveying channel for placing the spring (7) is formed on the bottom plate. The spring (7) is placed in the conveying channel for conveying. The side plate adjustment mechanism (10) is mounted below the bottom plate and connected to the side plate (11). The side plate adjustment mechanism (10) controls the side plate (11) to move along the width direction of the bottom plate. One end of the bottom plate is located at the feed port of the spring compression system (2). The first blocking mechanism and the second blocking mechanism are sequentially arranged between the bottom plate and the feed port. The spring (7) in the conveying channel sequentially passes through the first blocking mechanism and the second blocking mechanism to enter the feed port. The spring compression system (2) comprises a rotating base mechanism, a spring radial positioning mechanism and a main pressure mechanism, wherein the spring radial positioning mechanism is located above the rotating base mechanism, and the main pressure mechanism is located on one side of the rotating base. The rotating base mechanism comprises a rotating tray (15) and a rotating motor (16), wherein the rotating tray (15) is installed below the feed port via a rotating shaft, and the output shaft of the rotating motor (16) is connected to the rotating shaft. The spring radial positioning mechanism comprises a cylinder (17), a positioning block push rod (18) and a positioning block (19), wherein the cylinder (17) is installed directly above the rotating tray (15), and the positioning block (19) is installed at one end of the positioning block push rod (18), and the other end of the positioning block push rod (18) is installed on the cylinder arm of the cylinder (17). When the spring (7) falls into the rotating tray (15), the cylinder (17) pushes the positioning block push rod (18) and the positioning block (19) thereon. ) radial compression spring (7), the main pressure mechanism comprises a main pressure motor (21), a slider (22), a main pressure lead screw (23), a cylindrical guide rail (24), a push rod (25), a main pressure stopper (26) and a limit block (27), the slider (22) is slidably mounted on the cylindrical guide rail (24), the main pressure lead screw (23) is connected to the output shaft of the main pressure motor (21), the main pressure lead screw (23) passes through the slider (22) and is transmitted to the slider (22) The push rod (25) is connected, one end of the push rod (25) is fixed on the slider (22), and the other end is connected to the main pressure stopper (26), the main pressure stopper (26) is located on one side of the rotating tray (15), the main pressure motor (21) drives the slider (22) to move through the main pressure screw (23), and the slider (22) drives the push rod (25) to move therewith, and the push rod (25) pushes the main pressure stopper (26) to move toward the rotating tray (15), compressing the spring (7) thereon; The spring deformation detection system (3) comprises a push rod motor mechanism, a detection support plate mechanism, a deformation detection mechanism and a discharge port (36), wherein the detection support plate mechanism is located below the rotating tray (15), the push rod motor mechanism and the deformation detection mechanism are respectively located on both sides of the detection tray mechanism, and the discharge port (36) is located below the detection tray mechanism, the detection support plate mechanism comprises a support plate motor (30) and a spring tray (31), the spring tray (31) is installed below the rotating tray (15) via a rotating shaft, and the output shaft of the support plate motor (30) is connected to the rotating shaft, The push rod motor mechanism comprises a push rod motor (28), a lead screw push rod (29) and a push rod baffle (33), wherein the lead screw push rod (29) is located on one side of the spring tray (31), one end of the lead screw push rod (29) is connected to the push rod baffle (33), and the other end is connected to the output shaft of the push rod motor (28), The deformation detection mechanism comprises a spring end support plate (32), an end support plate positioning shaft (34) and a position sensor (35); the spring end support plate (32) is movably mounted on the other side of the spring tray (31) through the end support plate positioning shaft (34) and is arranged opposite to the push rod baffle plate (33); the position sensor (35) is located below the end support plate positioning shaft (34); when the push rod motor (28) drives the push rod baffle plate (33) to push the spring (7) located on the spring tray (31) through the lead screw push rod (29), , the spring (7) pushes the spring end support plate (32) to move rightward, the spring end support plate (32) drives the end support plate positioning shaft (34) to move accordingly, the position sensor (35) detects the moving distance of the end support plate positioning shaft (34), and feeds back the detected distance to the digital control system (5), the digital control system (5) calculates the deformation amount of the spring (7) after compression according to the initial data of the spring (7) and the detected distance, and determines the range of the deformation amount of the spring (7) after compression according to the user setting requirements; The discharging screening system comprises a discharging support plate (37), a first discharging mechanism, a second discharging mechanism and a qualified product box (44), wherein the discharging support plate (37) is located below the discharging port (36), the discharging support plate (37) is connected to the qualified product box (44) via a discharging plate, and the first discharging mechanism and the second discharging mechanism are sequentially arranged on the discharging plate along the discharging direction of the spring (7). The digital control system (5) determines the range of the deformation of the spring (7) after compression according to preset conditions. If the deformation is greater than 2 mm, the first discharging mechanism is opened and the spring (7) is output from the first discharging mechanism. If the deformation is in the range of 0-2 mm, the second discharging mechanism is opened and the spring (7) is output from the second discharging mechanism. If the deformation is 0 mm, both the first discharging mechanism and the second discharging mechanism are in a closed state, and the spring (7) enters a qualified product box (44).

2. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The first blocking mechanism comprises a feed blocking cylinder (12) and a cylinder fixing plate, one end of the cylinder fixing plate is fixed on the spring compression system (2), the feed blocking cylinder (12) is installed on the cylinder fixing plate and is located between the second blocking mechanism and the spring (7) on the conveying channel, when the spring (7) needs to pass through the first feed blocking mechanism, the cylinder arm of the feed blocking cylinder (12) contracts, and the spring (7) passes through the first blocking mechanism and enters the second blocking mechanism.

3. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The second blocking mechanism comprises a feed blocking motor (13) and a feed blocking baffle (14); the feed blocking baffle (14) is movably mounted on the feed inlet; the output shaft of the feed blocking motor (13) is connected to the feed blocking baffle (14); when the spring (7) needs to pass through the second blocking mechanism, the output shaft of the feed blocking motor (13) rotates, driving the feed blocking baffle (14) to flip, and the spring (7) falls into the feed inlet.

4. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The spring feed control system (1) further comprises a support plate bracket (9), one end of which is fixed on the spring compression system (2), and the spring support plate (8) is fixed above the support plate bracket (9).

5. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The spring compression system (2) further comprises an upper cover plate (20), the cylinder (17) being fixedly mounted on the upper cover plate (20), the upper cover plate (20) also being provided with a through hole, the positioning block push rod (18) being movably mounted in the through hole and being located on both sides of the cylinder (17).

6. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The spring compression system (2) further comprises a limit block (27) and a limit rod, one end of the limit rod is fixed on the frame (6), and the limit block (27) is fixed on the other end of the limit rod. When the slider (22) moves to a preset position, the limit block (27) presses against the slider (22).

7. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The spring compression system (2) further comprises a protective cover (45), wherein the protective cover (45) is sleeved on the spring end support plate (32).

8. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The first discharge mechanism comprises a first discharge port servo motor (38), a first discharge baffle (39) and a first slide groove (42); the first discharge baffle (39) is movably mounted on the discharge plate via a rotating shaft; the output shaft of the first discharge port servo motor (38) is connected to the rotating shaft; and the first slide groove (42) is located directly below the first discharge baffle (39).

9. The compression stiffness detection device for automobile shock absorbing spring according to claim 1, characterized in that: The second discharge mechanism comprises a second discharge port servo motor (40), a second discharge baffle (41) and a second slide groove (43); the second discharge baffle (41) is movably mounted on the discharge plate via a rotating shaft; the output shaft of the second discharge port servo motor (40) is connected to the rotating shaft; and the second slide groove (43) is located directly below the second discharge baffle (41).

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