A cutting and grinding device for automotive springs

Abstract

This invention relates to an automotive spring processing equipment, specifically a cutting and grinding device for automotive springs, comprising a machine tool with a cutting structure and a grinding structure. The cutting structure is used to stamp and cut spring blanks from a metal sheet, and the grinding structure is located at the bottom of the cutting structure for grinding the stamped and cut spring blanks. The cutting structure includes a stamping assembly and a feeding assembly. The stamping assembly uses a stamping die and a stamping punch to stamp and cut the metal sheet. Simultaneously, the feeding assembly can automatically transport the metal sheet to the cutting area. The stroke of the metal sheet being transported each time can be adapted to the width of the spring blank, thereby replacing manual metal sheet feeding and fully utilizing the material of the metal sheet to produce spring blanks.

Description

Technical Field

[0001] This invention relates to an automotive spring processing equipment, specifically a cutting and grinding device for automotive springs. Background Technology

[0002] As a key connector in the automotive electrical system, the stamping and cutting process of automotive springs must take into account high precision, high efficiency and high reliability. During the stamping process, the processing personnel need to first stamp and cut the spring blank from the metal plate. During the stamping and cutting process, the operator feeds the metal plate into the stamping device step by step.

[0003] Although the above-mentioned stamping and cutting device can complete the stamping of spring sheet blanks, in actual operation, the metal sheet needs to be fed manually, which is a high-risk operation. At the same time, the length of each feeding cannot be controlled manually, and the material of the metal sheet cannot be fully utilized during stamping and cutting. Furthermore, the surface of the stamped spring sheet blank has many burrs, which require secondary grinding by manual labor. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting and grinding device for automotive spring clips, thereby solving the aforementioned technical problems.

[0005] To achieve the above objectives, the present invention provides a cutting and grinding device for automotive spring sheets, including a machine tool, wherein the machine tool is provided with a cutting structure and a grinding structure;

[0006] The cutting structure is used to stamp and cut spring sheet-shaped blanks from metal sheets. It includes a stamping assembly and a feeding assembly. The stamping assembly includes a stamping frame, a stamping base, a lower press, two sets of clamping plates, and positioning blocks. The stamping frame is fixedly mounted on the machine tool via mounting columns. The stamping base is fixedly mounted on the bottom of the stamping frame, with a central cavity for holding the stamping die. The lower press is vertically slidably mounted on the upper end of the stamping frame and is raised and lowered by a lifting assembly. A stamping punch is fixedly mounted on the bottom of the lower press. A set of clamping plates is provided on each side of the width of the lower press. The two sets of clamping plates are driven and fixedly clamped to both sides of the stamping punch by driving assemblies mounted on both sides of the stamping frame. The positioning blocks are horizontally slidably mounted on the stamping frame. The feeding assembly, located near the feeding component and connected to its nearest clamping plate group via a transmission amplification component, is used to transport the metal plate into the cutting channel of the stamping frame. It includes two sets of clamping plates, two sets of lifting plates, two sets of drive support plates, and a drive main board. The two sets of clamping plates are mirror images of the two sides of the metal plate and are elastically connected to the lifting plates on both sides of the metal plate via a first elastic component. Each end of the two sets of lifting plates is provided with a pair of sliding columns. The two pairs of sliding columns are correspondingly slidably installed in the sliding guide grooves mirrored on the upper and lower parts of the machine tool. The two sets of lifting plates are slidably installed on the corresponding drive support plates in the vertical direction. The two sets of drive support plates are elastically connected to the drive main board via a second elastic component. The drive main board is driven by a telescopic component on one side of the machine tool to reciprocate intermittently.

[0007] The grinding structure, located at the bottom of the cutting structure, is used to grind the spring sheet blanks that have been stamped and cut.

[0008] As a further embodiment of the present invention, the lifting assembly includes two sets of vertical telescopic cylinders, which are fixedly installed on the top plate of the stamping frame, and their telescopic ends are fixedly connected to the upper end of the lower press table.

[0009] As a further embodiment of the present invention, the clamping plate assembly includes clamping blocks and clamping plates. The clamping plates are fixedly connected to the corresponding clamping plates via connecting columns. The clamping blocks are slidably installed in the limiting grooves opened on both sides of the lower press table and abut against the corresponding side of the stamping punch. The distance between the two sets of clamping blocks is equal to the width of the spring sheet blank. The two sets of clamping plates are driven by the driving assembly to move in a mirror image.

[0010] As a further embodiment of the present invention, the drive assembly includes two sets of dual-axis motors, two sets of mounting sliders, and two pairs of drive lead screws;

[0011] Two sets of dual-axis motors are respectively set on both sides of the stamping frame and fixedly connected to the corresponding mounting sliders. The two sets of mounting sliders are slidably installed in the limiting guide grooves on both sides of the stamping frame. Each set of dual-axis motors has a set of drive screws fixedly installed on both ends coaxially. The two ends of the clamping plate are respectively connected to the stroke screws of the two sets of dual-axis motors installed on the corresponding sides of the stroke screws.

[0012] As a further embodiment of the present invention, the transmission amplification assembly includes a transmission column, a transmission angle plate, a first transmission gear, a second transmission gear, and two sets of transmission racks.

[0013] Two sets of transmission columns are fixedly installed at both ends of the corresponding clamping plates. Two sets of transmission angle plates are slidably installed on both sides of the stamping frame. Vertical connecting grooves are provided on the plates for the corresponding transmission columns to slide vertically. Transmission gear one and transmission gear two are coaxially fixedly connected and rotatably installed on both sides of the stamping frame. Two pairs of transmission racks are respectively set at both ends of the stamping frame. Each pair of transmission racks is fixedly installed on the transmission angle plate and the near end face of the positioning block. One set of transmission racks is fixedly installed at the bottom of the transmission angle plate and meshes with the upper tooth surface of transmission gear one. Another set of transmission racks is fixedly installed on the upper end face of the positioning block and meshes with the lower tooth surface of transmission gear two. When transmission gear one and transmission gear two rotate coaxially, the moving stroke of the positioning block is twice the moving stroke of the transmission angle plate.

[0014] As a further embodiment of the present invention, a third guide post is fixedly installed at the bottom of the lifting plate, and the third guide post is slidably installed on the corresponding drive support plate in the vertical direction.

[0015] As a further embodiment of the present invention, the sliding guide groove includes a horizontal straight groove and an inclined groove connected together;

[0016] When the sliding column is slidably installed on the horizontal straight groove, the two sets of clamping plates are mirror-pressed on both ends of the metal plate. When the sliding column is slidably installed on the inclined groove, the two sets of clamping plates are disengaged from the upper and lower sides of the metal plate.

[0017] As a further embodiment of the present invention, the first elastic component includes multiple sets of first guide posts and multiple sets of first springs. One end of each set of first guide posts is fixedly connected to the driving surface of the pressure plate. The lifting plate is provided with guide holes for the first guide posts to slide through. The two ends of each set of first springs are fixedly connected to the pressure plate and the lifting platform, respectively.

[0018] The second elastic component includes multiple sets of second guide posts and multiple sets of second springs. One end of each set of second guide posts is fixedly connected to the driving surface of the drive main board. The drive support plate is provided with guide holes for the second guide posts to slide through. The two ends of each set of second springs are fixedly connected to the drive support plate and the ends of the second guide posts, respectively.

[0019] As a further embodiment of the present invention, the telescopic assembly includes two sets of horizontal telescopic cylinders, which are fixedly installed on the machine tool, and their telescopic ends are fixedly connected to the driving surface of the drive motherboard.

[0020] As a further embodiment of the present invention, the grinding structure includes a discharge conveyor belt, a pressing roller, and a grinding roller;

[0021] The discharge conveyor belt is rotatably mounted on the bottom of the machine tool, and pressing rollers and grinding rollers are rotatably mounted on it.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. This invention provides a feeding component on one side of the stamping assembly. When feeding, the feeding component is extended by a telescopic component and pushed by a drive support plate elastically connected to the drive main board. The sliding column slides along the sliding guide groove, causing two sets of lifting plates to move closer together. The pressing plate elastically connected to the two sets of lifting plates presses the metal plate on both sides and moves linearly to feed the metal plate, thereby replacing manual labor to achieve automatic feeding, cutting and stamping of the metal plate. Furthermore, due to the elastic connection between the drive main board and the drive support plate, the feeding component can abut against the vertical end face of the positioning block to adjust the feeding stroke of the feeding component.

[0024] 2. This invention provides two sets of clamping plates on the stamping punch. These two sets of clamping plates can be positioned and clamped on both sides of the stamping punch, and the distance between the two sets of clamping plates corresponds to the width of the stamping punch. After clamping and positioning the stamping punch, the two sets of clamping plates can transmit the width information of the stamping punch to the positioning stop via a transmission amplification component. This allows the clamping plates to simultaneously position the blocking position of the positioning stop on one side of the stamping frame during the clamping process. The positioning stop can also adjust the position of the two sets of clamping plates during the feeding assembly. The feeding stroke of the clamping plate is blocked and limited. Two sets of clamping plates press against the two sides of the metal plate and move horizontally to drive the metal plate feeding process. When the side of the clamping plate contacts the vertical positioning surface of the positioning block, the two sets of clamping plates cannot move further, thus ensuring that the metal plate stops feeding after moving the set feeding stroke. This allows the feeding stroke of the corresponding metal plate to be adjusted synchronously during stamping and cutting after the clamping assembly clamps and fixes the replacement stamping punch, without the need for the staff to perform secondary calculation and adjustment.

[0025] 3. The present invention can collect the spring sheet blanks that have been stamped and cut by the stamping punch and stamping die through the discharge conveyor belt located at the bottom of the machine tool. During the conveying process, the spring sheet blanks can be pressed and positioned and polished by the pressing roller and the polishing roller respectively. This invention can realize the cutting and polishing of automotive spring sheets at the same time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram from a perspective of a cutting and polishing device for automotive springs according to the present invention.

[0027] Figure 2 This is a second-view schematic diagram of a cutting and polishing device for automotive springs according to the present invention.

[0028] Figure 3 This is a schematic diagram of the clamping plate assembly in this invention.

[0029] Figure 4 This is a schematic diagram of the stamping assembly in this invention.

[0030] Figure 5 This is a schematic diagram of the feeding assembly in this invention.

[0031] Figure 6 This is a schematic diagram of the grinding structure in this invention.

[0032] Figure 7 This is a schematic diagram of the transmission amplification component in this invention.

[0033] In the attached diagram: 1. Machine tool;

[0034] 2. Grinding structure; 201. Discharge conveyor belt; 202. Pressing roller; 203. Grinding roller;

[0035] 3. Stamping assembly; 301. Stamping frame; 302. Clamping plate assembly; 3021. Clamping block; 3022. Clamping plate; 303. Lower press table; 304. Stamping die; 305. Stamping punch; 306. Drive assembly; 3061. Mounting slider; 3062. Drive screw; 3063. Dual-axis motor; 307. Transmission amplification assembly; 3071. Transmission column; 3072. Transmission angle plate; 3073. Transmission gear one; 3074. Transmission rack; 3075. Transmission gear two; 308. Positioning stop; 309. Vertical telescopic cylinder; 310. Stamping base;

[0036] 4. Feeding assembly; 401. Drive main board; 402. Drive support plate; 403. Lifting plate; 404. Pressing plate; 405. First guide post; 406. First spring; 407. Second guide post; 408. Second spring; 409. Third guide post; 410. Sliding guide groove; 411. Sliding post;

[0037] 5. Metal sheet;

[0038] 6. Horizontal telescopic cylinder; Detailed Implementation

[0039] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0040] like Figures 1 to 6 As shown in the embodiment of the present invention, a cutting and grinding device for automotive spring sheets includes a machine tool 1, which is equipped with a cutting structure and a grinding structure 2. The cutting structure is used to stamp and cut spring sheet blanks from a metal plate 5. It includes a stamping assembly 3 and a feeding assembly 4. The stamping assembly 3 includes a stamping frame 301, a stamping base 310, a lower press table 303, two sets of clamping plates 302, and a positioning stop 308. The stamping frame 301 is fixedly mounted on the machine tool 1 via mounting posts. The stamping base 3... 10 is fixedly installed at the bottom of the stamping frame 301, with a mounting cavity in the middle for placing the stamping die 304. The lower pressing platform 303 is vertically slidably installed at the upper end of the stamping frame 301 and is driven to rise and fall by the lifting assembly. The bottom of the lower pressing platform 303 is fixedly installed with the stamping punch 305. A set of clamping plate groups 302 are respectively provided on both sides of the width of the lower pressing platform 303. The two sets of clamping plate groups 302 are driven and fixedly clamped on both sides of the stamping punch 305 by the driving assembly 306 installed on both sides of the stamping frame 301. The positioning baffle slides horizontally. The feeding assembly 4 is mounted on the side of the stamping frame 301 near the feeding component 4, and is connected to its nearest clamping plate group 302 via the transmission amplification component 307. The feeding component 4 is used to transport the metal plate 5 into the cutting channel of the stamping frame 301. It includes two sets of clamping plates 404, two sets of lifting plates 403, two sets of drive support plates 402, and a drive main plate 401. The two sets of clamping plates 404 are mirror images of the two sides of the metal plate 5 and are elastically connected to the corresponding lifting plates 403 on both sides of the metal plate 5 via a first elastic component. The two sets of lifting plates 404... Both ends of 03 are provided with a pair of sliding columns 411. The two pairs of sliding columns 411 are slidably installed in the sliding guide grooves 410 mirrored on the upper and lower parts of the machine tool 1. The two sets of lifting plates 403 are slidably installed on the corresponding drive support plates 402 in the vertical direction. The two sets of drive support plates 402 are elastically connected to the drive main board 401 through the second elastic component. The drive main board 401 is driven by the telescopic component on one side of the machine tool 1 to reciprocate intermittently. The grinding structure 2 is set at the bottom of the cutting structure and is used to grind the spring sheet blank after stamping and cutting.

[0041] In the production of automotive spring sheet blanks, the present invention allows the metal plate 5 to be inserted into the stamping assembly 3 via the feeding assembly 4. The two ends of the metal plate 5 are clamped by the two sets of clamping plates 404 in the feeding assembly 4, and the metal plate 5 is delivered linearly. The stamping assembly 3 is driven by the lower press 303 moving downward to move the stamping punch 305 toward the stamping die 304 on the stamping base 310. The stamping punch 305 presses the metal plate 5 into the mold groove in the middle of the stamping die 304, and the spring sheet blank is cut out from the metal plate 5. The spring sheet blank falls from the mold groove in the middle of the stamping die 304 onto the grinding structure 2, and is then ground by the grinding structure 2.

[0042] like Figure 4 As shown, in this embodiment of the invention, the lifting assembly includes two sets of vertical telescopic cylinders 309. The two sets of vertical telescopic cylinders 309 are fixedly installed on the top plate of the stamping frame 301, and their telescopic ends are fixedly connected to the upper end of the lower pressing platform 303. The invention uses the two sets of vertical telescopic cylinders 309 to telescopically drive the lower pressing platform 303 to move in the vertical direction.

[0043] like Figure 3 and Figure 4 As shown, in this embodiment of the invention, the clamping plate group 302 includes clamping blocks 3021 and clamping plates 3022. The clamping plates 3022 are fixedly connected to the corresponding clamping plates 3022 via connecting columns. The clamping blocks 3021 are slidably installed in the limiting grooves opened on both sides of the lower press table 303 and abut against the corresponding side of the stamping punch 305. The distance between the two sets of clamping blocks 3021 is equal to the width of the spring sheet blank. The two sets of clamping plates 3022 are driven to move in a mirror image by the driving component 306. In this invention, after the stamping punch 305 is fixedly installed on the lower press table 303, the driving component 306 drives the two sets of clamping plate groups 302 to move closer in a mirror image. The two sets of clamping blocks 3021 slide along the limiting grooves and abut against both sides of the stamping punch 305. The distance between the two sets of clamping plate groups 302 can be automatically adapted to the different width specifications of the spring sheet blank in the stamping punch 305.

[0044] Furthermore, the drive assembly 306 further includes two sets of dual-axis motors 3063, two sets of mounting sliders 3061, and two pairs of drive screws 3062. The two sets of dual-axis motors 3063 are respectively arranged on both sides of the stamping frame 301 and fixedly connected to the corresponding mounting sliders 3061. The two sets of mounting sliders 3061 are slidably installed in the limiting guide grooves on both sides of the stamping frame 301. Each set of dual-axis motors has a set of drive screws 3062 coaxially fixedly installed at both ends. The two ends of the clamping plate 3022 are respectively driven by the stroke screws 3062 installed on the corresponding sides of the two sets of dual-axis motors 3063. In this invention, when the pressing table 303 slides in the vertical direction, it can be driven by the two sets of mounting sliders 3063. The mounting slider 3061 slides along the corresponding limiting guide groove, synchronously driving the two sets of dual-axis motors 3063 and the lower pressure table 303 to move synchronously. When the drive assembly 306 drives the two sets of clamping plate groups 302, it controls the two sets of dual-axis motors 3063 to start synchronously, driving the drive screws 3062 at both ends to rotate synchronously, and threadedly driving the two sets of clamping plates 3022 to move closer to each other. Of course, in actual design, the dual-axis motors 3063 and the two pairs of drive screws 3062 can be replaced with two sets of double threaded rods, which are installed on the two sets of mounting sliders 3061 to drive and connect the two sets of clamping plates 3022. The present invention does not impose strict requirements on the selection of the drive assembly 306.

[0045] like Figure 4 and Figure 7 As shown, in this embodiment of the invention, the transmission amplification assembly 307 includes a transmission column 3071, a transmission angle plate 3072, a first transmission gear 3073, a second transmission gear 3075, and two sets of transmission racks 3074.

[0046] Two sets of transmission columns 3071 are fixedly installed at both ends of the corresponding clamping plates 3021. Two sets of transmission angle plates 3072 are slidably installed on both sides of the stamping frame 301, and vertically provided with connecting grooves for vertical sliding of the corresponding side transmission columns 3071. The first transmission gear 3073 and the second transmission gear 3075 are coaxially and fixedly connected, and rotatably installed on both sides of the stamping frame 301. Two pairs of transmission racks 3074 are respectively arranged at both ends of the stamping frame, and each pair of transmission racks 3074 is fixedly installed on the transmission angle plate 3071. 2. On the near end face of the positioning block 308, one set of transmission racks 3074 is fixedly installed on the bottom of the transmission angle plate 3072 and meshes with the upper tooth surface of the first transmission gear 3073. Another set of transmission racks 3074 is fixedly installed on the upper end face of the positioning block 308 and meshes with the lower tooth surface of the second transmission gear 3075. When the first transmission gear 3073 and the second transmission gear 3075 rotate coaxially, the moving stroke of the positioning block 308 is twice the moving stroke of the transmission angle plate 3072.

[0047] In this invention, when the clamping plate 3022 is driven by the driving assembly 306 to clamp the stamping punch 305 in the horizontal direction, both ends of the clamping plate 3022 can drive the transmission angle plate 3072 to move synchronously in the horizontal direction through the transmission column 3071. The transmission angle plate 3072 meshes with the first transmission gear 3073 through the transmission rack 3074 at its bottom, driving the first transmission gear 3073 to rotate. Simultaneously, the coaxial connection between the first transmission gear 3073 and the second transmission gear 3075 drives the second transmission gear 3075 to rotate synchronously, and the meshing... The transmission rack 3074 at the bottom of the transmission gear 3075 drives the transmission angle plate 3072 to move. In this invention, the two sets of clamping plates 3021 are mirror images during the clamping process. When the width of the stamping punch 305 changes, the travel distance of the plate is half the width adjustment value of the stamping punch 305. Through the transmission amplification component set in this invention, the travel distance of the positioning block 308 is amplified to twice the travel distance of the transmission angle plate 3072, thereby adapting to the travel requirements of the metal plate 5 during feeding.

[0048] Meanwhile, when the transmission amplification component 307 is driven by the lower pressure table 303 to move in the vertical direction, the transmission column 3071 at the end of the clamping plate 3022 can slide along the vertical connecting groove on the transmission angle plate 3072.

[0049] like Figure 5 As shown, in this embodiment of the invention, a third guide post 409 is fixedly installed at the bottom of the lifting plate 403. The third guide post 409 is slidably installed on the corresponding drive support plate 402 in the vertical direction. The sliding guide groove 410 includes a connected horizontal straight groove and an inclined groove. When the sliding post 411 is slidably installed on the horizontal straight groove, the two sets of pressing plates 404 are mirror-pressed on both ends of the metal plate 5. When the sliding post 411 is slidably installed on the inclined groove, the two sets of pressing plates 404 are disengaged from the upper and lower sides of the metal plate 5. In this invention, the feeding assembly 4 realizes the metal... During the feeding operation of plate 5, the extension component installed on one side of machine tool 1 drives the main drive plate 401 to move closer to the stamping frame 301. At the same time, the elastic support of the second elastic component drives the drive support plate 402 to move in the same direction as the drive main drive plate 401. During the movement of the drive support plate 402, the lifting plate 403, which is vertically slidably installed on its upper side, moves synchronously closer to the stamping frame 301. While the lifting plate 403 moves horizontally under force, the sliding column 411 on the side of the lifting plate 403 slides along the inclined groove of the sliding guide groove 410 to the horizontal straight groove.

[0050] Specifically, when the two pairs of sliding columns 411 slide along the inclined groove, the sliding columns 411 drive the corresponding connected lifting plate 403 to move closer to the metal plate 5. The lifting plate 403, in conjunction with the elastic transmission of the first elastic component, drives the two sets of pressing plates 404 to press against both sides of the metal plate 5. When the two pairs of sliding columns 411 slide from the inclined groove to the horizontal straight groove, the two sets of pressing plates 404 press against both sides of the metal plate 5 to keep the metal plate 5 fixed. Driven by the main drive board 401, the pressing plates 404 move to realize the feeding of the metal plate 5. When one end of the two sets of pressing plates 404 abuts against the positioning block 308, the positioning block 308 positions the two sets of pressing plates 404. When the telescopic component further extends, it will squeeze the second elastic component to deform, thereby realizing the feeding component 4 to feed the metal plate 5 to the preset stroke.

[0051] Furthermore, in this invention, when the stamping punch 305 is driven by the lower press table 303 to stamp and cut the metal plate 5, the telescopic component can retract to drive the main drive plate 401 to move away from the stamping structure. Since the metal plate 5 is in a stamping fixed state, when the clamping plates 404 on both sides of the metal plate 5 are retracted by the elastic force, they cannot drive the metal plate 5 to reset and retract synchronously. When the stamping punch 305 is separated from the upper surface of the metal plate 5, the telescopic component has completed the reset and retraction operation of the two sets of clamping plates 404.

[0052] like Figure 5 As shown, in this embodiment of the invention, the first elastic component includes multiple sets of first guide posts 405 and multiple sets of first springs 406. One end of each set of first guide posts 405 is fixedly connected to the driving surface of the pressing plate 404. The lifting plate 403 is provided with guide holes for the first guide posts 405 to slide through. The two ends of each set of first springs 406 are fixedly connected to the pressing plate 404 and the lifting platform, respectively. Specifically, when the sliding post 411 slides along the inclined groove into the horizontal straight groove, the lifting plate 403 moves vertically accordingly and squeezes the first springs 406 to drive the pressing plate 404 to be pressed and fixed on the side of the metal plate 5. The two sets of first guide posts 405 can guide the vertical sliding of the pressing plate 404 when the pressing plate 404 slides relative to the lifting plate 403.

[0053] Furthermore, the second elastic component includes multiple sets of second guide posts 407 and multiple sets of second springs 408. One end of each set of second guide posts 407 is fixedly connected to the driving surface of the drive main board 401. The drive support plate 402 is provided with guide holes for the second guide posts 407 to slide through. The two ends of each set of second springs 408 are fixedly connected to the drive support plate 402 and the ends of the second guide posts 407, respectively. When the telescopic component extends, the transmission drives the two sets of pressing plates 404 to move to abut against the positioning block 308. At this time, the telescopic component extends further, driving the two sets of second guide posts 407 to move further, causing the second springs 408 to deform.

[0054] like Figure 5 As shown, in this embodiment of the invention, the telescopic component includes two sets of horizontal telescopic cylinders 6. The two sets of horizontal telescopic cylinders 6 are fixedly installed on the machine tool 1, and their telescopic ends are fixedly connected to the driving surface of the drive motherboard 401. The invention uses the two sets of horizontal telescopic cylinders 6 to telescopically extend and retract, thereby driving the drive motherboard 401 to move in the horizontal direction.

[0055] like Figure 6 As shown, in this embodiment of the invention, the grinding structure 2 includes a discharge conveyor belt 201, a pressing roller 202, and a grinding roller 203. The discharge conveyor belt 201 is rotatably mounted on the bottom of the machine tool 1 and is used to collect the spring sheet blanks that have been stamped and cut by the stamping punch 305 and the stamping die 304. During the conveying process, the pressing roller 202 and the grinding roller 203 are rotatably mounted on it to press and position the spring sheet blanks and polish them, respectively. This allows the invention to simultaneously realize the cutting and grinding operations of automotive spring sheets.

[0056] In summary, this invention replaces manual labor in feeding, cutting, and stamping metal plates 5 by setting a feeding component 4 on one side of the stamping component 3, and by intermittently reciprocating the telescopic component within the feeding component 4 to drive two sets of clamping plates 404 to press against both sides of the metal plate 5. Furthermore, two sets of clamping plate groups 302 are set on the stamping punch 305, which can be positioned and clamped on both sides of the stamping punch 305. The distance between the two sets of clamping plate groups 302 corresponds to the width specification of the stamping punch 305. The positioning of the clamping plate groups 302 connects to the positioning block 308 on one side of the stamping frame 301, thereby adjusting the displacement limit distance of the two sets of clamping plates 404 within the feeding component 4, and thus adjusting the stroke of the metal plate 5 fed by the two sets of clamping plates 404 to correspond to the specification of the stamping punch 305.

[0057] Furthermore, the present invention can collect the spring sheet blanks stamped and cut by the stamping punch 305 and the stamping die 304 through the discharge conveyor belt 201 located at the bottom of the machine tool 1. During the conveying process, the spring sheet blanks can be pressed and positioned, and polished by the pressing roller 202 and the polishing roller 203, respectively. This allows the present invention to simultaneously realize the cutting and polishing operations of automotive spring sheets.

[0058] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A cutting and polishing device for a spring sheet for an automobile, comprising a machine tool, characterized in that, The machine tool is internally provided with a cutting structure and a grinding structure; The cutting structure is used for stamping and cutting out a shell plate blank on a metal plate, and comprises a stamping assembly and a feeding assembly. The stamping assembly comprises a stamping frame, a stamping base, a pressing table, two sets of clamping plate groups and a positioning stopper. The stamping frame is fixedly installed on the machine tool through mounting columns. The stamping base is fixedly installed at the bottom of the stamping frame and is provided with an installation cavity for placing a stamping concave die. The pressing table is vertically slidably installed at the upper end of the stamping frame and is driven to ascend and descend by a lifting assembly. The pressing table is fixedly provided with a stamping convex die at the bottom. Each of the two sets of clamping plate groups is provided with a set of clamping plates at the widthwise sides of the pressing table and is fixedly clamped at the two sides of the stamping convex die by a driving assembly installed at the two sides of the stamping frame. The positioning stopper is horizontally slidably installed at the side of the stamping frame close to the feeding assembly and is in transmission connection with the closest clamping plate group through a transmission amplification assembly. The feeding assembly is used for conveying the metal plate into the cutting channel of the stamping frame and comprises two sets of pressing plates, two sets of lifting plates, two sets of driving support plates and a driving main plate. The two sets of pressing plates are mirror-symmetrically arranged at the two sides of the metal plate and are elastically connected to the lifting plates at the two sides of the metal plate through first elastic assemblies. Each of the two sets of lifting plates is provided with a pair of sliding columns at the two ends, and the two pairs of sliding columns are slidably installed in the mirror-symmetrically arranged sliding guide grooves at the upper and lower parts of the machine tool. The two sets of lifting plates are slidably installed on the corresponding driving support plates in the vertical direction. The two sets of driving support plates are elastically connected to the driving main plate through second elastic assemblies. The driving main plate is intermittently and reciprocally extended and retracted by a telescopic assembly at one side of the machine tool. The grinding structure is arranged at the bottom of the cutting structure and is used for grinding the shell plate blank after stamping and cutting.

2. The apparatus according to claim 1, wherein The lifting assembly comprises two sets of vertical telescopic cylinders which are fixedly installed on the top plate of the stamping frame and are fixedly connected to the upper end of the pressing table at the telescopic ends.

3. The device according to claim 1, wherein Each of the clamping plate groups comprises a clamping block and a clamping plate. The clamping plate is fixedly connected to the corresponding clamping plate through a connecting column. The clamping block is slidably installed in the limiting sliding groove at the two sides of the pressing table and is in abutment with the corresponding side surface of the stamping convex die. The distance between the two clamping blocks is equal to the width of the shell plate blank. The two clamping plates are mirror-symmetrically moved by the driving assembly.

4. The apparatus according to claim 3, wherein The driving assembly comprises two sets of double-shaft motors, two sets of mounting sliding blocks and two pairs of driving lead screws. Each of the two sets of double-shaft motors is arranged at the two sides of the stamping frame and is fixedly connected to the corresponding mounting sliding block. The two sets of mounting sliding blocks are slidably installed in the limiting guide grooves at the two sides of the stamping frame. Each of the double-shaft motors is coaxially fixedly installed with a set of driving lead screws at the two ends. The two ends of the clamping plate are in screw pair transmission with the driving lead screws installed at the corresponding sides of the two sets of double-shaft motors.

5. The apparatus according to claim 1, wherein The transmission amplification assembly comprises a transmission column, a transmission angle plate, transmission gears one and two and two sets of transmission racks. Two groups of the transmission columns are fixedly installed at two ends of the corresponding clamping plates, and two groups of the transmission angle plates are slidably installed at two sides of the punching frame, vertical communication grooves are vertically formed on the transmission angle plates for vertical sliding of the corresponding side transmission columns, the transmission gear one is coaxially fixedly connected with the transmission gear two, and is rotatably installed at two sides of the punching frame, two pairs of transmission racks are respectively arranged at two ends of the punching frame, and each pair of transmission racks is fixedly installed on the end face close to the transmission angle plate and the positioning stopper, and one group of the transmission racks is fixedly installed on the bottom of the transmission angle plate and is in meshing connection with the upper end tooth surface of the transmission gear one, and one group of the transmission racks is fixedly installed on the upper end face of the positioning stopper and is in meshing connection with the lower end tooth surface of the transmission gear two, when the transmission gear one and the transmission gear two are coaxially rotated, the moving stroke of the positioning stopper is twice the moving stroke of the transmission angle plate.

6. The apparatus according to claim 1, wherein The third guide column is fixedly installed at the bottom of the lifting plate and is slidably installed on the corresponding driving support plate in the vertical direction.

7. The apparatus according to claim 1, wherein The sliding guide groove comprises a horizontal straight groove and an inclined groove connected with each other. When the sliding column is slidably installed on the horizontal straight groove, the two groups of pressing plates are mirror-symmetrically pressed at two ends of the metal plate, and when the sliding column is slidably installed on the inclined groove, the two groups of pressing plates are separated from the upper and lower sides of the metal plate.

8. The apparatus according to claim 1, wherein The first elastic component comprises a plurality of first guide columns and a plurality of first springs, one end of each of the first guide columns is fixedly connected with the driving face of the pressing plate, the lifting plate is provided with a guide hole for sliding penetration of the first guide column, and two ends of each of the first springs are fixedly connected with the pressing plate and the lifting plate respectively. The second elastic component comprises a plurality of second guide columns and a plurality of second springs, one end of each of the second guide columns is fixedly connected with the driving face of the driving main plate, the driving support plate is provided with a guide hole for sliding penetration of the second guide column, and two ends of each of the second springs are fixedly connected with the driving support plate and the end of the second guide column respectively.

9. The apparatus according to claim 1, wherein The telescopic component comprises two groups of horizontal telescopic cylinders, the telescopic ends of the two groups of horizontal telescopic cylinders are fixedly connected with the driving face of the driving main plate.

10. The apparatus according to claim 1, wherein The polishing structure comprises an ejection conveying belt, a pressing roller and a polishing roller. The ejection conveying belt is rotatably installed at the bottom of the machine tool, and the pressing roller and the polishing roller are rotatably arranged on the ejection conveying belt.

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