Steel plate spring blanking equipment with length detection function

Abstract

The invention relates to the technical field of steel bar cutting equipment, in particular to steel plate spring blanking equipment with length detection, which comprises a machine base, a machine shell is mounted at the upper end of the machine base, a conveying assembly, a cutting mechanism and a length limiting mechanism are arranged in the machine shell, the conveying assembly comprises a feeding mechanism and a feeding mechanism, and a plurality of driving shafts are rotatably connected in the machine shell. The driving rollers are installed on the circumferential face of the driving shaft, the guide grooves are formed in the surface of the machine shell, the connecting shafts are slidably connected into the guide grooves, the driven rollers are rotatably connected to the connecting shafts, first springs are installed between the connecting shafts and the machine shell, and steel bars are clamped between the driving shafts and the driven shafts. The feeding mechanism comprises a material storage box, a sliding rod and a push plate, the material storage box is installed on the surface of the machine shell, the multiple steel bars are stored in the material storage box, through the effect of the conveying assembly, in the steel plate spring production and discharging process, the steel bars can be rapidly and efficiently fed, and the steel bar cutting and discharging efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of steel leaf spring processing equipment, and more specifically to a steel leaf spring blanking device with length detection. Background Technology

[0002] Leaf springs are the most widely used elastic element in automotive suspensions. Their core characteristics are as follows: They are composed of several alloy spring leaves of equal width but different lengths, forming an elastic beam of approximately equal strength. The number of leaves is related to the vehicle's load. The multiple leaves are stacked in an inverted triangle, with the uppermost leaf being the longest and the lowermost leaf being the shortest. The deformation of the spring leaves absorbs the vertical load transmitted by the wheels, reducing vehicle vibration and improving ride comfort. In non-independent suspensions, they help maintain wheel alignment, while providing damping through inter-leaf friction to suppress relative movement of the leaf springs.

[0003] The shortcomings of existing technology: In the process of processing steel leaf springs, it is necessary to cut long steel bars into multiple parts, which requires feeding multiple steel bars. However, the steel bars are long, and the traditional feeding method is inconvenient and requires a large space. Therefore, we propose a steel leaf spring feeding device with length detection. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a steel leaf spring blanking device with length detection to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: a steel leaf spring unloading device with length detection, comprising a base, a housing mounted on the upper end of the base, a conveying assembly, a cutting mechanism, and a length limiting mechanism disposed within the housing, the conveying assembly comprising a feeding mechanism and a loading mechanism, the feeding mechanism comprising a drive shaft, a drive roller, a guide groove, a connecting shaft, and a driven roller, multiple drive shafts rotatably connected within the housing, the drive rollers all mounted on the circumferential surface of the drive shafts, multiple guide grooves formed on the surface of the housing, the connecting shafts all slidably connected within the guide grooves, the driven rollers all rotatably connected to the connecting shafts, a first spring installed between the connecting shaft and the housing, and a steel strip clamped between the drive shaft and the driven shaft;

[0006] The feeding mechanism includes a storage box, a slide bar, and a push plate. The storage box is installed on the surface of the machine housing, and multiple steel bars are stored in the storage box. Multiple slide bars are slidably connected inside the machine housing, and the push plate is installed on the end face of the slide bar. The output end of the electric push rod installed on the surface of the machine housing is fixedly connected to the push plate.

[0007] Preferably, a pair of connecting rods and multiple lead screws are rotatably connected inside the base. Gears are installed on the circumferential surface of the connecting rods, and the gears mesh with the tooth grooves opened on the surface of the slide rod. The connecting rods and lead screws are connected by a first sprocket set, and the lead screws are connected by a second sprocket set. A lifting block is threadedly connected to the circumferential surface of the lead screw. The lifting block is slidably connected to a guide seat installed on the surface of the housing. Connecting frames are installed at both ends of the connecting shaft, and the lifting block is located at the lower end of the connecting frame.

[0008] Preferably, a drive motor is installed at the lower end of the base, a rotating shaft is installed at the output end of the drive motor, the rotating shaft is connected to the drive shaft through a third sprocket set, and the drive shafts are connected to each other through a fourth sprocket set.

[0009] Preferably, the housing contains multiple rectangular frames and multiple rotating seats. Each rectangular frame has a guide frame slidably connected to it, and each guide frame has a first straightening wheel rotatably connected to it. A second spring is installed between the rectangular frame and the guide frame. Each rotating seat has a mounting shaft rotatably connected to it. A reset spring is installed between the mounting shaft and the rotating seat. Each mounting shaft has a rotating frame mounted on its circumference. Each rotating frame has a second straightening wheel rotatably connected to it. The steel bar is located between the first straightening wheel and the second straightening wheel.

[0010] Preferably, the cutting mechanism includes a lifting frame, a cutting blade, and a hydraulic cylinder. The lifting frame is slidably connected inside the machine housing. The cutting blade is installed at the lower end of the lifting frame. The hydraulic cylinder is installed at the upper end of the machine housing. The output end of the hydraulic cylinder is fixedly connected to the lifting frame.

[0011] Preferably, the length limiting mechanism includes a fixed frame, guide rods, a connecting plate, and a length limiting plate. The fixed frame is installed inside the housing, and multiple guide rods are installed between the fixed frame. The connecting plate is slidably connected to the circumferential surface of the guide rods, and the length limiting plate is installed at the lower end of the connecting plate. The lower end of the length limiting plate is provided with an angle.

[0012] Preferably, a servo motor is mounted on the surface of the fixing frame, and a threaded rod is mounted on the output end of the servo motor, with the circumferential surface of the threaded rod being threadedly connected to the connecting plate.

[0013] Preferably, the upper end of the machine base is provided with a feeding groove, and the lower end of the machine base is provided with a discharge rack, which is inverted trapezoidal.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. This invention controls the operation of an electric push rod to push a steel bar between a drive roller and a driven roller. During the pushing process, the connecting shaft moves upward in the guide groove, driving the driven roller to move upward synchronously, leaving space for the subsequent movement of the steel bar between the drive roller and the driven roller. Then, through the action of a first spring, the connecting shaft is pushed downward, and the driven roller presses down on the steel bar. At this time, the steel bar is clamped between the drive roller and the driven roller. Subsequently, the drive roller is controlled to rotate, causing the steel bar clamped between the drive roller and the driven roller to be conveyed forward. During the conveying process of the steel bar, the length of the steel bar is limited and corrected by the action of a length limiting mechanism to reach the predetermined cutting length. Then, the cutting mechanism is controlled to operate to partially cut the steel bar, thereby achieving the effect of rapid material unloading in the production process of steel leaf springs.

[0016] 2. Through the action of the first and second straightening wheels, when the steel bar is pushed onto the drive roller by the push plate, the steel bar first pushes the rotating frame to rotate downward around the mounting shaft. When the steel bar disengages from the rotating frame, the rotating frame will rotate back to its original position. At this time, through the action of the second spring, the second spring pushes the guide frame to move to the right, pushing the steel bar to move on the drive roller, so that the steel bar is clamped between the first and second straightening wheels, correcting the position of the steel bar, preventing the steel leaf spring from being conveyed forward in an inclined state, ensuring a flat cut when the steel bar is cut later. At the same time, when facing steel bars of different sizes, it can adaptively clamp and position them to meet the cutting and feeding effect of steel leaf springs of different sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 In this invention Figure 1 A schematic diagram of the structure of part A;

[0019] Figure 3 This is a schematic diagram of the structure on the right side of the present invention;

[0020] Figure 4 In this invention Figure 3 A structural diagram of section B;

[0021] Figure 5 This is a cross-sectional structural diagram of the storage box in this invention;

[0022] Figure 6 This is a schematic diagram of the push plate in this invention;

[0023] Figure 7 This is a schematic diagram of the structure viewed from below in this invention;

[0024] Figure 8 This is a schematic diagram of the lead screw disassembly structure in this invention;

[0025] Figure 9 This is a top-view cross-sectional structural schematic diagram of the present invention;

[0026] Figure 10 In this invention Figure 9 A structural diagram of section C;

[0027] Figure 11 This is a schematic diagram of the first straightening wheel and the second straightening wheel in this invention;

[0028] Figure 12 This is a schematic diagram of the rotating frame in this invention during rotation;

[0029] Figure 13 This is a schematic diagram of the cutting mechanism and length limiting mechanism in this invention.

[0030] The attached figures are labeled as follows: 1. Machine base; 101. Machine housing; 102. Steel bar; 2. Conveying assembly; 21. Feeding mechanism; 211. Drive shaft; 212. Drive roller; 213. Guide groove; 214. Connecting shaft; 215. Driven roller; 216. First spring; 217. Drive motor; 218. Rotating shaft; 219. Third sprocket assembly; 2110. Fourth sprocket assembly; 22. Feeding mechanism; 221. Storage box; 222. Slide rod; 223. Push plate; 224. Electric push rod; 225. Connecting rod; 226. Lead screw; 227. Gear; 228. Tooth groove; 229. First sprocket assembly; 2210. 1. Second sprocket assembly; 2211. Lifting block; 2212. Guide seat; 2213. Connecting frame; 3. Cutting mechanism; 301. Lifting frame; 302. Cutting knife; 303. Hydraulic cylinder; 4. Length limiting mechanism; 401. Fixed frame; 402. Guide rod; 403. Connecting plate; 404. Length limiting plate; 405. Servo motor; 406. Threaded rod; 5. Rectangular frame; 501. Rotating seat; 502. Guide frame; 503. First straightening wheel; 504. Second spring; 505. Mounting shaft; 506. Reset spring; 507. Rotating frame; 508. Second straightening wheel; 6. Discharge chute; 601. Discharge rack. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The steel leaf spring blanking device with length detection involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-10As shown, in one embodiment, a steel leaf spring unloading device with length detection is proposed, including a base 1, a housing 101 installed on the upper end of the base 1, a conveying assembly 2, a cutting mechanism 3 and a length limiting mechanism 4 are provided inside the housing 101, the conveying assembly 2 includes a feeding mechanism 21 and a loading mechanism 22, the feeding mechanism 21 includes a drive shaft 211, a drive roller 212, a guide groove 213, a connecting shaft 214 and a driven roller 215, multiple drive shafts 211 are rotatably connected inside the housing 101, the drive rollers 212 are all installed on the circumferential surface of the drive shafts 211, multiple guide grooves 213 are opened on the surface of the housing 101, the connecting shafts 214 are all slidably connected in the guide grooves 213, the driven rollers 215 are all rotatably connected on the connecting shafts 214, a first spring 216 is installed between the connecting shafts 214 and the housing 101, and a steel strip 102 is clamped between the drive shafts 211 and the driven shafts;

[0033] The feeding mechanism 22 includes a storage box 221, a slide bar 222, and a push plate 223. The storage box 221 is installed on the surface of the housing 101, and multiple steel bars 102 are stored in the storage box 221. Multiple slide bars 222 are slidably connected inside the housing 101. The push plate 223 is installed on the end face of the slide bar 222. The output end of the electric push rod 224 installed on the surface of the housing 101 is fixedly connected to the push plate 223.

[0034] In practical application, the feeding mechanism 22 is placed in the storage box 221. The electric push rod 224 is controlled to operate, and the electric push rod 224 pushes the push plate 223 to move. The push plate 223 pushes the steel bar 102 located at the bottom of the storage box 221 to move to the left, so that the steel bar 102 is pushed between the drive roller 212 and the driven roller 215. During the pushing process, the connecting shaft 214 moves upward in the guide groove 213, driving the driven roller 215 to move upward synchronously, leaving space for the subsequent movement of the steel bar 102 between the drive roller 212 and the driven roller 215. After the steel bar 102 is pushed between the drive roller 212 and the driven roller 215 by the push plate 223, the electric push rod 224 is controlled to retract and reset. After the electric push rod 224 has reset, the connecting shaft 214 is pushed to the left by the action of the first spring 216. As the driven roller 215 moves downward, it presses down on the steel strip 102. At this time, the steel strip 102 is clamped between the drive roller 212 and the driven roller 215. Then, the drive shaft 211 can be controlled to rotate, and the drive shaft 211 drives the drive roller 212 to rotate, so that the steel strip 102 clamped between the drive roller 212 and the driven roller 215 is conveyed forward. During the conveying process of the steel strip 102, the length of the steel strip 102 is limited and corrected by the length limiting mechanism 4 to reach the predetermined cutting length. Then, the cutting mechanism 3 is controlled to operate to partially cut the steel strip 102. As the steel strip 102 is continuously cut and fed, all the steel strips 102 clamped between the drive roller 212 and the driven roller 215 are output, and new steel strips 102 can be added to them by the feeding mechanism 22, thereby achieving the effect of rapid feeding in the production process of steel leaf springs.

[0035] like Figure 3 , 4 As shown in Figures 7 and 8, in one embodiment, a pair of connecting rods 225 and a plurality of lead screws 226 are rotatably connected inside the base 1. Gears 227 are mounted on the circumferential surface of the connecting rods 225. The gears 227 mesh with the tooth grooves 228 opened on the surface of the slide rods 222. The connecting rods 225 and the lead screws 226 are connected by a first sprocket set 229. The lead screws 226 are connected by a second sprocket set 2210. A lifting block 2211 is threadedly connected to the circumferential surface of the lead screws 226. The lifting block 2211 is slidably connected to a guide seat 2212 mounted on the surface of the housing 101. Connecting frames 2213 are mounted on both ends of the connecting shaft 214. The lifting block 2211 is located at the lower end of the connecting frame 2213.

[0036] In practical application, when the electric push rod 224 extends to push the push plate 223 to move, the slide rod 222 moves simultaneously. During the movement of the slide rod 222, the toothed grooves 228 on its surface drive the gear 227 to rotate. The gear 227 drives the connecting rod 225 to rotate. The connecting rod 225 drives the lead screw 226 to rotate through the first sprocket set 229. Subsequently, through the action of the second sprocket, multiple lead screws 226 rotate simultaneously, thereby driving the lifting block 2211 to slide upward within the guide seat 2212. The lifting block 2211 pushes the connecting frame 2213 upward, causing multiple connecting shafts 214 and driven rollers 215 to move upward. To allow space for the subsequent steel bar 102 to enter between the drive roller 212 and the driven roller 215, when the steel bar 102 is added between the drive roller 212 and the driven roller 215, the slide rod 222 will be reset synchronously when the electric push rod 224 retracts and resets. At this time, the lead screw 226 can be driven to rotate in the opposite direction, causing the lifting block 2211 to descend and reset. When the connecting frame 2213 loses the support of the lifting block 2211, the connecting shaft 214 and the driven roller 215 will be driven to descend by the action of the first spring 216, causing the driven roller 215 to press down on the steel bar 102, completing the loading operation. Then, the steel bar 102 can be conveyed forward by the feeding mechanism 21 for cutting and unloading.

[0037] like Figure 1 and 3 As shown, in one embodiment, a drive motor 217 is installed at the lower end of the base 1, and a rotating shaft 218 is installed at the output end of the drive motor 217. The rotating shaft 218 is connected to the drive shaft 211 through a third sprocket set 219, and the drive shafts 211 are connected to each other through a fourth sprocket set 2110.

[0038] In practical application, when the steel bar 102 is clamped between the drive roller 212 and the driven roller 215, the drive motor 217 is controlled to operate. The drive motor 217 drives the rotating shaft 218 to rotate. The rotating shaft 218 drives the drive shaft 211 to rotate through the third sprocket set 219. The drive shaft 211, through the action of the fourth sprocket set 2110, causes multiple drive shafts 211 to rotate simultaneously, thereby driving multiple drive rollers 212 to rotate simultaneously, thus achieving the effect of controlling the forward conveying of the steel bar 102.

[0039] like Figure 9-11As shown, in one embodiment, a plurality of rectangular frames 5 and a plurality of rotating seats 501 are installed inside the housing 101. Each rectangular frame 5 is slidably connected to a guide frame 502. Each guide frame 502 is rotatably connected to a first straightening wheel 503. A second spring 504 is installed between the rectangular frame 5 and the guide frame 502. Each rotating seat 501 is rotatably connected to a mounting shaft 505. A reset spring 506 is installed between the mounting shaft 505 and the rotating seat 501. Each mounting shaft 505 is circumferentially mounted with a rotating frame 507. Each rotating frame 507 is rotatably connected to a second straightening wheel 508. The steel bar 102 is located between the first straightening wheel 503 and the second straightening wheel 508.

[0040] In practical application, during the process of pushing the steel bar 102 onto the drive roller 212 by the pusher plate 223, the steel bar 102 first pushes the rotating frame 507 to rotate downwards around the mounting shaft 505, and then contacts the first straightening wheel 503, pushing the guide frame 502 to move to the left. When the steel bar 102 disengages from the rotating frame 507, the rotating frame 507 will rotate back to its original position by the action of the reset spring 506. Subsequently, the electric push rod 224 is controlled to retract and reset, synchronously driving the pusher plate 223 to reset. The second spring 504 pushes the guide frame 502 to move to the right, which in turn pushes the steel bar 102 to move on the drive roller 212. This causes the steel bar 102 to be clamped between the first straightening wheel 503 and the second straightening wheel 508, which corrects the position of the steel bar 102 and prevents the steel leaf spring from being conveyed forward at an angle. This ensures that the cut of the steel bar 102 is flat when it is cut later. At the same time, it can adaptively clamp and position steel bars 102 of different sizes to meet the cutting and feeding effect of steel leaf springs of different sizes.

[0041] like Figure 13 As shown, in one embodiment, the cutting mechanism 3 includes a lifting frame 301, a cutting blade 302, and a hydraulic cylinder 303. The lifting frame 301 is slidably connected inside the housing 101, the cutting blade 302 is installed at the lower end of the lifting frame 301, and the hydraulic cylinder 303 is installed at the upper end of the housing 101. The output end of the hydraulic cylinder 303 is fixedly connected to the lifting frame 301.

[0042] In practical application, the hydraulic cylinder 303 is controlled to operate, which drives the lifting frame 301 to descend. The lifting frame 301 then drives the cutting blade 302 to descend, thereby cutting off the steel bar 102 extending below and achieving the cutting and unloading effect in the production process of steel leaf springs.

[0043] like Figure 13As shown, in one embodiment, the length limiting mechanism 4 includes a fixed frame 401, a guide rod 402, a connecting plate 403, and a length limiting plate 404. The fixed frame 401 is installed inside the housing 101, a plurality of guide rods 402 are installed between the fixed frames 401, the connecting plate 403 is slidably connected to the circumferential surface of the guide rods 402, and the length limiting plate 404 is installed at the lower end of the connecting plate 403. The lower end of the length limiting plate 404 is provided with an angle.

[0044] In practical application, when the feeding mechanism 21 conveys the steel bar 102 upward, the position of the length limiting plate 404 is controlled according to the required cutting length of the steel bar 102. The length limiting plate 404 restricts the length of the output part of the steel bar 102, which has the effect of correcting the length of the cutting part and ensuring the accuracy of the cutting length. At the same time, the angled setting at the lower end of the length limiting plate 404 can support the position of the protruding end of the steel bar 102, ensuring the stability of the steel bar 102 during cutting.

[0045] like Figure 3 As shown, in one embodiment, a servo motor 405 is mounted on the surface of the mounting bracket 401, and a threaded rod 406 is mounted on the output end of the servo motor 405. The circumferential surface of the threaded rod 406 is threadedly connected to the connecting plate 403.

[0046] In practical applications, this invention controls the operation of the servo motor 405, which in turn drives the threaded rod 406 to rotate. The threaded rod 406 then moves the connecting plate 403, thereby achieving the effect of adjusting the position of the length limiting plate 404.

[0047] like Figure 1 As shown, in one embodiment, a feeding groove 6 is provided at the upper end of the machine base 1, and a discharge rack 601 is installed at the lower end of the machine base 1. The discharge rack 601 is inverted trapezoidal.

[0048] In practical application, when the steel bar 102 is cut, the cut part will fall downwards, pass through the feeding trough 6 and enter the discharge rack 601, and finally be discharged and collected through the inverted trapezoidal discharge rack 601.

[0049] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0050] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0051] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A leaf spring blanking apparatus with length detection, comprising a bed (1), characterized in that: The upper end of the base (1) is provided with a shell (101), the shell (101) is provided with conveying assembly (2), cutting mechanism (3) and length limiting mechanism (4), the conveying assembly (2) includes feeding mechanism (21) and feeding mechanism (22), the feeding mechanism (21) includes driving shaft (211), driving roller (212), guide groove (213), connecting shaft (214) and driven roller (215), a plurality of driving shaft (211) is rotatably connected in the shell (101), the driving roller (212) is mounted on the circumferential surface of the driving shaft (211), a plurality of guide grooves (213) are formed in the surface of the shell (101), the connecting shaft (214) is slidably connected in the guide groove (213), the driven roller (215) is rotatably connected on the connecting shaft (214), the first spring (216) is mounted between the connecting shaft (214) and the shell (101), and the steel bar (102) is clamped between the driving shaft (211) and the driven shaft. The feeding mechanism (22) includes a storage box (221), a sliding rod (222) and a push plate (223), the storage box (221) is installed on the surface of the shell (101), a plurality of steel bars (102) are stored in the storage box (221), a plurality of sliding rods (222) are slidably connected in the shell (101), and the push plate (223) is installed on the end surface of the sliding rod (222). The output end of the electric push rod (224) mounted on the surface of the shell (101) is fixedly connected with the push plate (223).

2. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized in that: A pair of connecting rods (225) and a plurality of lead screws (226) are rotatably connected in the base (1), the connecting rod (225) is provided with a gear (227) on the circumferential surface, the gear (227) is engaged with the tooth groove (228) formed on the surface of the sliding rod (222), the connecting rod (225) and the lead screw (226) are connected through the first sprocket set (229), the lead screws (226) are connected through the second sprocket set (2210), the lead screw (226) is threadedly connected with the lifting block (2211) on the circumferential surface, the lifting block (2211) is slidably connected with the guide seat (2212) mounted on the surface of the shell (101), and the connecting shaft (214) is provided with a connecting frame (2213) at both ends. The lifting block (2211) is located below the lower end of the connecting frame (2213).

3. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized in that: The lower end of the base (1) is provided with a driving motor (217), the output end of the driving motor (217) is provided with a rotating shaft (218), the rotating shaft (218) and the driving shaft (211) are connected through the third sprocket set (219), and the driving shaft (211) is connected through the fourth sprocket set (2110).

4. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized in that: The shell (101) is provided with a plurality of rectangular frames (5) and a plurality of rotating seats (501), the guiding frames (502) are slidably connected in the rectangular frames (5), the first straightening wheels (503) are rotatably connected to the guiding frames (502), the second springs (504) are installed between the rectangular frames (5) and the guiding frames (502), the mounting shafts (505) are rotatably connected in the rotating seats (501), the reset springs (506) are installed between the mounting shafts (505) and the rotating seats (501), the rotating frames (507) are installed on the circumferential surfaces of the mounting shafts (505), the second straightening wheels (508) are rotatably connected in the rotating frames (507), and the steel bar (102) is located between the first straightening wheels (503) and the second straightening wheels (508).

5. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized by: The cutting mechanism (3) comprises a lifting frame (301), a cutting knife (302) and a hydraulic cylinder (303), the lifting frame (301) is slidably connected in the shell (101), the cutting knife (302) is installed at the lower end of the lifting frame (301), and the hydraulic cylinder (303) is installed at the upper end of the shell (101), and the output end of the hydraulic cylinder (303) is fixedly connected with the lifting frame (301).

6. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized by: The length limiting mechanism (4) comprises a fixed frame (401), a guide rod (402), a connecting plate (403) and a length limiting plate (404), the fixed frame (401) is installed in the shell (101), a plurality of guide rods (402) are installed between the fixed frames (401), the connecting plate (403) is slidably connected on the circumferential surface of the guide rod (402), the length limiting plate (404) is installed at the lower end of the connecting plate (403), and the lower end of the length limiting plate (404) is provided with an inclined angle.

7. The blanking apparatus for a leaf spring with length detection according to claim 6, characterized in that: The surface of the fixed frame (401) is provided with a servo motor (405), the output end of the servo motor (405) is provided with a threaded rod (406), and the circumferential surface of the threaded rod (406) is threadedly connected with the connecting plate (403).

8. The blanking apparatus for a leaf spring with length detection according to claim 1, characterized by: The upper end of the machine base (1) is provided with a discharging groove (6), and the lower end of the machine base (1) is provided with a discharging frame (601).

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