Semi-open type spring clamp continuous forming equipment

By designing a semi-open spring clamp continuous forming equipment, using guide design and slider fixing structure, the problem of low spring clamp molding efficiency in the existing technology is solved, and continuous forming and high-precision punching process is achieved, and the stability of the equipment and product quality are improved.

CN223159935UActive Publication Date: 2025-07-29SUZHOU INST OF TRADE & COMMERCE
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Patent Information

Application Number
CN202421317136.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-07-29
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

The prior art cannot realize continuous forming processing of spring clamps, and the punching and bending processes are independent, resulting in low processing efficiency.

Method used

A semi-open spring clamp continuous forming equipment is designed, including material discharge assembly, feed assembly, punching assembly, punching assembly, bending assembly and feeding assembly. The continuous forming of the metal tape is achieved through guide design and slide rod fixing structure to ensure punching accuracy and efficiency.

Benefits of technology

Continuous forming of spring clamps is realized, punching accuracy and efficiency are improved, errors caused by vibration or offset are reduced, equipment service life is extended, and molding quality is improved.

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Abstract

The utility model discloses continuous forming equipment for a semi-open type spring clamp. The continuous forming equipment comprises a discharging assembly, a feeding assembly, a blanking assembly, a thrusting assembly, a bending assembly and a jacking assembly. The discharging assembly is provided with a coiled metal material belt, the feeding assembly is used for conveying the metal material belt, and the metal material belt sequentially passes through the feeding assembly, the blanking assembly, the thrusting assembly and the bending assembly after being discharged by the discharging assembly. The blanking assembly is used for punching a metal material strip to form a prefabricated material strip; the punching and cutting assembly is used for punching and cutting the front end of the prefabricated material belt to form a prefabricated spring clamp; the bending assembly is used for bending the prefabricated spring clamp to form the spring clamp; the ejection assembly is used for ejecting out the spring clamp; the bending assembly comprises a base, a forming block and a plurality of forming cutters, the forming block and the forming cutters are arranged on the base, the punching assembly comprises a fixed block and a movable block, the fixed block is located on the moving path of the prefabricated material belt, and the movable block can move towards or away from the fixed block along the base.
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Description

Technical Field

[0001] The utility model belongs to the technical field of part forming and processing, and particularly relates to a semi-open spring clamp continuous forming device. Background Art

[0002] Part forming refers to a processing method of machining metal into a specific shape through additive, subtractive, bending and other means, and is widely used in machining occasions.

[0003] The invention patent with the application number CN201910940870.X discloses a leaf spring forming device and its using method, which includes a frame and an annular conveying mechanism. A plurality of lifting mechanisms are evenly arranged at the conveying end of the annular conveying mechanism, and a pressing arc forming mechanism is connected to the lifting end of the lifting mechanism; along the length direction of the upper surface of the frame, a blanking mechanism, a pre-bending mechanism and an ear forming mechanism are arranged in sequence; two guide rails are symmetrically arranged on the upper surface of the frame, a placing plate is slidably installed on the surface of the guide rails, and a pushing driving component is arranged on the upper surface of the frame; a bearing vertical plate is arranged on the upper surface of the placing plate, a pushing hydraulic cylinder is installed outside the bearing vertical plate, and a pushing plate is connected to the working end of the pushing hydraulic cylinder.

[0004] Although the prior art can achieve one-time blanking and bending, it cannot achieve continuous forming processing and requires manual placement of blank parts on the conveyor belt one by one. Moreover, blanking and bending in the prior art are independent of each other, resulting in low processing efficiency. Summary of the Utility Model

[0005] Aiming at the problems in the background art, the purpose of the utility model is to provide a semi-open spring clamp continuous forming device, which includes a feeding component, a feeding component, a blanking component, a punching component, a bending component and a blanking component; the feeding component is provided with a coiled metal strip, the feeding component is used for conveying the metal strip, and after the metal strip is fed by the feeding component, it sequentially passes through the feeding component, the blanking component, the punching component and the bending component;

[0006] The blanking component is used for punching the metal strip to form a prefabricated strip; the punching component is used for punching the front end of the prefabricated strip to form a prefabricated spring clamp; the bending component is used for bending the prefabricated spring clamp to form a spring clamp; the blanking component is used for ejecting the spring clamp;

[0007] The bending component includes a base and a forming block and a plurality of forming knives arranged on the base. A plurality of forming parts with the same number as the forming knives are sequentially arranged on the outer wall of the forming block in the circumferential direction. The plurality of forming knives are arranged around the forming block and correspond to each forming part one by one. The front end of the prefabricated strip is conveyed to the forming block by the feeding component;

[0008] The punching component is arranged on the base and located between the forming block and the blanking component. The punching component includes a fixed block and a movable block. The fixed block is located on the moving path of the prefabricated strip, and the movable block can move along the base towards or away from the fixed block;

[0009] The fixed block is provided with a punching cavity and at least one sliding hole. The movable block is provided with a punching knife and at least one sliding rod. The shape of the punching knife matches that of the punching cavity, the sliding rod matches the sliding hole, and the sliding rod is located on the side of the punching knife away from the forming block; One side of the punching knife is provided with an extended guiding portion, and the guiding portion extends into the punching cavity;

[0010] The movable block moves towards the fixed block to drive the sliding rod into the sliding hole, drive the punching knife into the punching cavity. After the sliding rod enters the sliding hole, it presses the prefabricated strip, and after the punching knife enters the punching cavity, it cuts the prefabricated strip.

[0011] Preferably, two sliding holes are provided on the fixed block, and two sliding rods are provided on the movable block. The two sliding rods correspond to the two sliding holes respectively. After the two sliding rods enter the two sliding holes, they press the prefabricated strip and the hole on the prefabricated strip respectively;

[0012] One end of one of the sliding rods facing the fixed block is a tapered end. The tapered end extends into the hole on the prefabricated strip and its outer tapered surface presses the periphery of the hole on the prefabricated strip.

[0013] Preferably, the blanking component includes a blanking concave die and a blanking convex die. The metal strip is arranged between the blanking concave die and the blanking convex die;

[0014] Two punching rods are sequentially arranged on the blanking convex die, and two punching cavities are provided on the blanking concave die. The blanking convex die drives the two punching rods to enter the two punching cavities respectively to punch two holes on the metal strip.

[0015] Preferably, a plurality of guiding blocks are respectively arranged on both sides of the metal strip on the blanking concave die. A first guiding groove is provided on the side of the guiding block facing the metal strip, and the side end of the metal strip is arranged in the first guiding groove.

[0016] Preferably, the ejecting component includes two ejecting blocks. Two sliding grooves are provided on the base on the side of the forming block. The two ejecting blocks are respectively slidably connected to the two sliding grooves. The ejecting blocks are used to eject the spring clamp away from the forming block.

[0017] Preferably, a second guiding groove is provided on the side wall of the forming block, and a guiding rib is provided on the side wall of the ejector block, and the guiding rib is arranged in the second guiding groove.

[0018] Preferably, guide rails are provided between the punching component and the blanking component, and between the blanking component and the feeding component. A conveying groove is arranged inside the guide rail along its length direction, and the metal strip is arranged in the conveying groove.

[0019] Preferably, the feeding component includes a feeding rack, a feeding disk and a guiding roller. The feeding disk is rotatably connected to the feeding rack. The guiding roller is arranged between the feeding rack and the feeding component. The metal strip is wound around the guiding roller, and the metal strip is guided into a horizontal state by the guiding roller.

[0020] Preferably, the feeding component includes a linear slide and a finger cylinder. The finger cylinder is arranged on the linear slide and is used for clamping the metal strip. The finger cylinder reciprocates through the linear slide to achieve step-by-step feeding of the metal strip.

[0021] Preferably, the feeding rack extends towards the blanking component to be provided with a mounting arm, and the linear slide is arranged on the mounting arm.

[0022] Due to the adoption of the above technical solutions, the present utility model has the following advantages and positive effects compared with the prior art:

[0023] 1. The present utility model realizes the continuous forming of the spring clamp through the feeding component, the feeding component, the blanking component, the punching component, the bending component and the ejecting component. And a lengthened guiding part is arranged on one side of the punching knife, and the guiding part extends into the punching cavity, so that the punching knife can be accurately guided into the punching cavity through the guiding part during punching; at the same time, a sliding rod is also provided. On the one hand, the sliding rod can press the prefabricated strip to ensure that when the punching knife cuts the prefabricated strip, the prefabricated strip will not move due to external force or its own elasticity, thereby ensuring the punching accuracy and efficiency. On the other hand, the sliding rod can also enhance the stability. The matching design of the sliding rod and the sliding hole not only provides a stable movement track for the movable block, but also makes the whole punching process more stable. This kind of stability helps to reduce the error caused by vibration or impact, and further improves the forming quality of the spring clamp.

[0024] 2. There are two sliding holes on the fixed block of the present utility model, and two sliding rods are provided on the movable block. The two sliding rods respectively correspond to the two sliding holes. After the two sliding rods enter the two sliding holes, they respectively press the prefabricated tape and the holes on the prefabricated tape, realizing double-point fixation. This design method is more stable than single-point fixation and can more effectively prevent the displacement of the prefabricated tape caused by vibration or elasticity during the punching process, thereby improving the punching accuracy and efficiency. The two sliding rods respectively press the prefabricated tape and the holes on the prefabricated tape, which means that during the punching process, not only the prefabricated tape itself is fixed, but also the holes on the prefabricated tape are stably fixed, helping to ensure that the position of the holes does not change when the punching knife cuts the prefabricated tape, further improving the forming quality of the spring clamp. At the same time, the design of the double sliding rods and double sliding holes makes the movable block more stable during the movement process, reducing errors caused by shaking or deviation. This stability is not only beneficial to the punching accuracy, but also of great significance for extending the service life of the equipment and improving the overall performance.

[0025] 3. One end of one of the sliding rods of the present utility model facing the fixed block is a conical end. The conical end extends into the hole on the prefabricated tape and its outer conical surface presses against the periphery of the hole on the prefabricated tape. The design of the conical end enables the sliding rod to more accurately extend into the hole on the prefabricated tape, realizing precise positioning and fixation. The outer conical surface of the conical end can effectively press against the periphery of the hole on the prefabricated tape, ensuring that the positions of the prefabricated tape and the hole remain stable during the punching process and there will be no offset or deformation. Moreover, the design of the conical end can adapt to different hole diameters, and only the length of the sliding rod and the size of the conical end need to be adjusted. Brief Description of the Drawings

[0026] The following further details the specific implementation manners of the present utility model in conjunction with the drawings, where:

[0027] Figure 1 is the overall schematic diagram of the present utility model;

[0028] Figure 2 is the schematic diagram of the feeding assembly of the present utility model;

[0029] Figure 3 is the partial schematic of the present utility model Figure 1 ;

[0030] Figure 4 is the partial schematic of the present utility model Figure 2 ;

[0031] Figure 5 is the schematic diagram of the punching assembly of the present utility model when the punching punch is hidden;

[0032] Figure 6 is the partial schematic diagram of the punching assembly of the present utility model;

[0033] Figure 7 is a partial enlarged view of the present utility model Figure 3 ;

[0034] Figure 8 is a partial enlarged view of the present utility model Figure 7 ;

[0035] Figure 9 is a schematic diagram of the present utility model when the fixing block is hidden Figure 8 ;

[0036] Figure 10 is a schematic diagram of the cooperation between the slide bar and the prefabricated tape of the present utility model

[0037] Figure 11 is a schematic diagram of the spring clamp and the forming block of the present utility model

[0038] Figure 12 is a schematic diagram of the spring clamp of the present utility model

[0039] Explanation of reference numerals in the drawings:

[0040] 1. Blanking assembly; 2. Cutting-off assembly; 3. Bending assembly; 4. Metal tape; 5. Feeding rack; 6. Feeding tray; 7. Guide roller; 8. Linear slide; 9. Finger cylinder; 10. Punching rod; 11. Forming block; 12. Guide block; 13. First guide groove; 14. Top block; 15. Guide rail; 16. Mounting arm; 17. Blanking female die; 18. Blanking male die; 19. Movable block; 20. Cutting-off knife; 21. Guide part; 22. Slide bar; 23. Fixing block; 24. Cutting-off cavity; 25. Slide hole; 26. Spring clamp; 27. Tapered end; 28. Guide rib; 29. Stamping equipment; 30. Fourth forming knife; 31. First driving block; 32. Base; 33. First forming knife; 34. Second forming knife; 35. Third forming knife Detailed implementation manners

[0041] The following further elaborates on the present utility model in detail in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly

[0043] Refer to Figures 1 to 12, the core of the present utility model is to provide a semi-open spring clamp continuous forming device, including a feeding component, a feeding component, a blanking component 1, a blanking component 2, a bending component 3 and a material ejecting component; the feeding component is provided with a coiled metal strip 4, the feeding component is used for conveying the metal strip 4, and the metal strip 4 passes through the feeding component, the blanking component 1, the blanking component 2 and the bending component 3 in sequence after being fed by the feeding component.

[0044] Guide rails 15 are provided between the blanking component 2 and the blanking component 1, and between the blanking component 1 and the feeding component. A conveying groove is provided inside the guide rails 15 along their length direction, and the metal strip 4 is arranged in the conveying groove.

[0045] The feeding component includes a feeding rack 5, a feeding disk 6 and a guiding roller 7. The feeding disk 6 is rotatably connected to the feeding rack 5. The guiding roller 7 is arranged between the feeding rack 5 and the feeding component. The metal strip 4 is wound around the guiding roller 7, and the metal strip 4 is guided by the guiding roller 7 to be horizontal. The guiding roller 7 is a key component in the feeding component, which plays a role in guiding and supporting the metal strip 4. By adjusting the position and angle of the guiding roller 7, precise control of the transmission path of the metal strip 4 can be achieved. The metal strip 4 guided by the guiding roller 7 enters the feeding component, and the feeding component is responsible for further conveying the metal strip 4 to the subsequent processing links.

[0046] The feeding component includes a linear slide table 8 and a finger cylinder 9. The finger cylinder 9 is arranged on the linear slide table 8 and is used for clamping the metal strip 4. The finger cylinder 9 reciprocates through the linear slide table 8 to achieve step-by-step conveying of the metal strip 4. Specifically, the feeding rack 5 extends towards the blanking component 1 and is provided with a mounting arm 16, and the linear slide table 8 is arranged on the mounting arm 16. This design ensures the smooth transmission of the metal strip 4 from the feeding component to the blanking component 1.

[0047] After starting the linear slide table 8, the finger cylinder 9 clamps the metal strip 4 and conveys it forward as the linear slide table 8 moves. Due to the reciprocating motion characteristic of the linear slide table 8, the finger cylinder 9 can achieve step-by-step conveying of the metal strip 4, that is, it stops after moving a fixed distance each time and waits for the next clamping and conveying. Through the precise control of the linear slide table 8, precise step-by-step conveying of the metal strip 4 is achieved, ensuring the accuracy and efficiency of the subsequent blanking operation.

[0048] The blanking component 1 is used for punching the metal strip 4 to form a prefabricated strip. The blanking component 1 includes a blanking female die 17 and a blanking male die 18. The metal strip 4 is arranged between the blanking female die 17 and the blanking male die 18. Two punching rods 10 are sequentially arranged on the blanking male die 18, and two punching cavities are arranged on the blanking female die 17. The blanking male die 18 drives the two punching rods 10 to enter the two punching cavities respectively to punch two holes on the metal strip 4. The blanking male die 18 acts through a stamping device 29.

[0049] Further, a plurality of guiding blocks 12 are respectively arranged on both sides of the metal strip 4 on the blanking female die 17. A first guiding groove 13 is arranged on the side of the guiding block 12 facing the metal strip 4, and the side end of the metal strip 4 is arranged in the first guiding groove 13. The side end of the metal strip 4 is placed in the first guiding groove 13, thereby realizing the precise guiding of the metal strip 4. This guiding method helps to ensure the stability of the metal strip 4 during movement and blanking, prevent it from shifting or shaking, and improve the blanking accuracy. The number of guiding blocks 12 is not specifically limited in this embodiment and can be determined according to actual needs and die design. Usually, there are enough to ensure the stable guiding of the metal strip 4.

[0050] The punching component 2 is used to punch the front end of the prefabricated strip to form a prefabricated spring clip 26; the bending component 3 is used to bend the prefabricated spring clip 26 to form the spring clip 26; the ejecting component is used to eject the spring clip 26;

[0051] The bending component 3 includes a base 32, a forming block 11 and a plurality of forming knives arranged on the base 32. A plurality of forming parts with the same number as the forming knives are sequentially arranged along the circumferential direction on the outer wall of the forming block 11. The plurality of forming knives are arranged around the forming block 11 and correspond to each forming part one by one. The forming knives can slide along the base 32 towards their corresponding forming parts. The front end of the prefabricated strip is conveyed to the forming block 11 through the feeding component.

[0052] Specifically, in this embodiment, a total of four forming knives are provided, namely the first forming knife 33, the second forming knife 34, the third forming knife 35, and the fourth forming knife 30. The four forming knives perform four bends in sequence, and four forming parts are correspondingly arranged on the forming block 11.

[0053] The punching component 2 is arranged on the base 32 and is located between the forming block 11 and the blanking component 1. The punching component 2 includes a fixed block 23 and a movable block 19. The fixed block 23 is located on the moving path of the prefabricated strip, and the movable block 19 can move along the base 32 towards or away from the fixed block 23.

[0054] A punching cavity 24 and two sliding holes 25 are arranged on the fixed block 23. A punching knife 20 and two sliding rods 22 are arranged on the movable block 19. The shape of the punching knife 20 matches that of the punching cavity 24, and the sliding rods 22 match the sliding holes 25. The sliding rods 22 are located on the side of the punching knife 20 away from the forming block 11; a guiding part 21 is arranged on one side of the punching knife 20, and the guiding part 21 extends into the punching cavity 24.

[0055] The movable block 19 moves towards the fixed block 23 to drive the slide bar 22 into the slide hole 25 and drive the punching knife 20 into the punching cavity 24. After the slide bar 22 enters the slide hole 25, it presses against the prefabricated tape. The two slide bars 22 correspond to the two slide holes 25 respectively. After the two slide bars 22 enter the two slide holes 25, they press against the prefabricated tape and the holes on the prefabricated tape respectively. After the punching knife 20 enters the punching cavity 24, it cuts the prefabricated tape. And before the punching knife 20 cuts the prefabricated tape, the slide bar 22 presses against the prefabricated tape first.

[0056] One side of the punching knife 20 is provided with an extended guiding part 21. The guiding part 21 extends into the punching cavity 24, so that the punching knife 20 can be accurately guided into the punching cavity 24 through the guiding part 21 during punching; at the same time, a slide bar 22 is also provided. On the one hand, the slide bar 22 can press against the prefabricated tape, ensuring that the prefabricated tape will not move due to external force or its own elasticity when the punching knife 20 cuts the prefabricated tape, thus ensuring the punching accuracy and efficiency. On the other hand, the slide bar 22 can also enhance the stability. The matching design of the slide bar 22 and the slide hole 25 not only provides a stable movement track for the movable block 19, but also makes the whole punching process more stable. This stability helps to reduce the errors caused by vibration or impact, and further improves the forming quality of the spring clamp 26.

[0057] After the two slide bars 22 enter the two slide holes 25, they press against the prefabricated tape and the holes on the prefabricated tape respectively, realizing double-point fixation. This design method is more stable than single-point fixation and can more effectively prevent the displacement of the prefabricated tape due to vibration or elasticity during the punching process, thus improving the punching accuracy and efficiency. The two slide bars 22 press against the prefabricated tape and the holes on the prefabricated tape respectively, which means that during the punching process, not only the prefabricated tape itself is fixed, but also the holes on the prefabricated tape are stably fixed, helping to ensure that the position of the holes will not change when the punching knife 20 cuts the prefabricated tape, and further improving the forming quality of the spring clamp 26. At the same time, the design of the double slide bars and double slide holes makes the movable block 19 more stable during the movement process, reducing the errors caused by shaking or deviation. This stability is not only beneficial to the punching accuracy, but also of great significance for extending the service life of the equipment and improving the overall performance.

[0058] Furthermore, one end of the slide bars 22 facing the fixed block 23 is a tapered end 27, which extends into the hole on the prefabricated strip and its outer conical surface presses against the circumference of the hole on the prefabricated strip. One end of the slide bars 22 facing the fixed block 23 is a tapered end 27, which extends into the hole on the prefabricated strip and its outer conical surface presses against the circumference of the hole on the prefabricated strip. The design of the tapered end 27 enables the slide bar 22 to more accurately extend into the hole on the prefabricated strip, achieving precise positioning and fixation. The outer conical surface of the tapered end 27 can effectively press against the circumference of the hole on the prefabricated strip, ensuring that during the punching process, the positions of the prefabricated strip and the hole remain stable without displacement or deformation. The design of the tapered end 27 can adapt to different hole sizes, simply by adjusting the length of the slide bar 22 and the size of the tapered end 27.

[0059] The ejector assembly includes two ejector blocks 14. Two slide slots are provided on the base 32 on the sides of the forming block 11. The two ejector blocks 14 are slidably connected to the two slide slots. The ejector blocks 14 are used to eject the spring clamp 26 from the forming block 11. Furthermore, a second guide slot is provided on the side wall of the forming block 11, and a guide rib 28 is provided on the side wall of the ejector block 14. The guide rib 28 is disposed in the second guide slot.

[0060] After the spring clip 26 is bent, an ejector assembly is designed to accurately eject it from the forming block 11. The ejector block 14 in the ejector assembly is responsible for performing the ejection operation. The two ejector blocks 14 in the ejector assembly are driven by corresponding drive devices (such as pneumatic cylinders or electric push rods). When the drive devices are activated, the ejector blocks 14 begin to move along the guide slots. A second guide slot is defined on the sidewall of the forming block 11. This precise groove provides a clear path and direction for the ejector blocks 14. Guide ribs 28 are also located on the sidewall of the ejector block 14. These raised portions mate with the second guide slots. As the ejector block 14 moves, the guide ribs 28 slide along the second guide slots. The interaction between the guide ribs 28 and the second guide slots improves the precision and efficiency of the ejection operation, ensuring that the spring clip 26 is ejected accurately and quickly. This design also extends the service life of the equipment by reducing wear on the forming block 11 and ejector block 14 caused by deviation or wobble of the ejector block 14. The cooperation between the forming block 11 and the ejector block 14 is a key step in the operation of the continuous forming equipment for the semi-open spring clamp 26. The precise guide design ensures that the spring clamp 26 can be ejected smoothly and accurately, thereby improving the production efficiency and product quality of the entire equipment.

[0061] The working process of the utility model is further described below:

[0062] First, lead out the metal strip 4 from the feeding tray 6, and wind the metal strip 4 around the guiding roller 7 to tension the metal strip 4 on the one hand and draw the metal strip 4 horizontally on the other hand to facilitate subsequent conveying.

[0063] Next, the metal strip 4 is threaded between the two jaws of the finger cylinder 9, and then inserted into the guide rail 15 between the feeding assembly and the blanking assembly 1. The linear slide 8 of the feeding assembly first drives the finger cylinder 9 to one end close to the feeding assembly, then the finger cylinder 9 clamps the metal strip 4, and the linear slide 8 then conveys the finger cylinder 9 to one end close to the blanking assembly 1 to convey the metal strip 4 forward by one stroke. This reciprocating cycle realizes the step-by-step conveyance of the metal strip 4.

[0064] The front end of the metal strip 4 is cut into a prefabricated strip with two holes after passing through two punching rods 10.

[0065] The prefabricated strip enters the guide rail 15 between the blanking assembly 1 and the punching-off assembly 2 after coming out of the blanking assembly 1, and then moves to the forming block 11 through the fixed block 23.

[0066] Next, the first forming knife 33 first bends the front end of the prefabricated strip once, and presses the front end of the prefabricated strip after bending. Then the movable block 19 moves towards the fixed block 23 to drive the sliding rod 22 into the sliding hole 25 and drive the punching-off knife 20 into the punching-off cavity 24. After the sliding rod 22 enters the sliding hole 25, it first presses the prefabricated strip, and then the punching-off knife 20 cuts the prefabricated strip to form a prefabricated spring clip 26.

[0067] Next, the second forming knife 34, the third forming knife 35, and the fourth forming knife 30 successively bend the prefabricated spring clip 26 to form the spring clip 26.

[0068] Finally, two ejector blocks 14 eject the spring clip 26 from the forming block 11.

[0069] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, provided that these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A semi-open spring clamp continuous forming device, characterized in that, It includes a feeding component, a material feeding component, a blanking component, a punching component, a bending component and a material ejecting component; the feeding component is provided with a coiled metal strip, the material feeding component is used for conveying the metal strip, and after the metal strip is fed by the feeding component, it successively passes through the material feeding component, the blanking component, the punching component and the bending component; The blanking component is used for punching the metal strip to form a prefabricated strip; the punching component is used for punching the front end of the prefabricated strip to form a prefabricated spring clamp; the bending component is used for bending the prefabricated spring clamp to form a spring clamp; the material ejecting component is used for ejecting the spring clamp; The bending component includes a base and a forming block and a plurality of forming knives arranged on the base. A plurality of forming parts with the same number as the forming knives are successively arranged on the outer wall of the forming block along the circumferential direction. The plurality of forming knives are arranged around the forming block and correspond to each of the forming parts one by one. The front end of the prefabricated strip is conveyed to the forming block by the material feeding component; The punching component is arranged on the base and is located between the forming block and the blanking component. The punching component includes a fixed block and a movable block. The fixed block is located on the moving path of the prefabricated strip, and the movable block can move along the base towards or away from the fixed block; The fixed block is provided with a punching cavity and at least one sliding hole, and the movable block is provided with a punching knife and at least one sliding rod. The shape of the punching knife matches that of the punching cavity, the sliding rod matches the sliding hole, and the sliding rod is located on the side of the punching knife away from the forming block; a prolonged guiding part is arranged on one side of the punching knife, and the guiding part extends into the punching cavity; The movable block moves towards the fixed block to drive the sliding rod into the sliding hole, drive the punching knife into the punching cavity. After the sliding rod enters the sliding hole, it presses the prefabricated strip, and after the punching knife enters the punching cavity, it cuts the prefabricated strip.

2. The semi-open spring clamp continuous forming device according to claim 1, characterized in that, Two sliding holes are arranged on the fixed block, and two sliding rods are arranged on the movable block. The two sliding rods respectively correspond to the two sliding holes. After the two sliding rods enter the two sliding holes, they respectively press the prefabricated strip and the hole on the prefabricated strip; One end of one of the sliding rods facing the fixed block is a conical end. The conical end extends into the hole on the prefabricated strip and its outer conical surface presses the periphery of the hole on the prefabricated strip.

3. The semi-open type spring clamp continuous forming equipment according to claim 2, characterized in that The blanking component includes a blanking female die and a blanking male die, and the metal strip is arranged between the blanking female die and the blanking male die; Two punching rods are successively arranged on the blanking male die, and two punching cavities are arranged on the blanking female die. The blanking male die drives the two punching rods to respectively enter the two punching cavities to punch two holes on the metal strip.

4. The semi-open spring clamp continuous forming device according to claim 3, characterized in that, A plurality of guiding blocks are respectively arranged on both sides of the metal strip on the blanking female die. A first guiding groove is arranged on the side of the guiding block facing the metal strip, and the side end of the metal strip is arranged in the first guiding groove.

5. The semi-open spring clamp continuous forming device according to claim 1, characterized in that, The ejecting component includes two ejecting blocks. Two sliding grooves are provided on the base beside the forming block, and the two ejecting blocks are respectively slidably connected to the two sliding grooves. The ejecting blocks are used to eject the spring clamp away from the forming block.

6. The semi-open spring clamp continuous forming equipment according to claim 5, characterized in that, A second guiding groove is provided on the side wall of the forming block, and a guiding rib is provided on the side wall of the ejecting block. The guiding rib is arranged in the second guiding groove.

7. The semi-open spring clamp continuous forming device according to claim 1, characterized in that, Guide rails are provided between the punching component and the blanking component, and between the blanking component and the feeding component. A conveying groove is arranged inside the guide rail along its length direction, and the metal strip is arranged in the conveying groove.

8. The semi-open spring clamp continuous forming equipment according to claim 1, characterized in that, The feeding component includes a feeding rack, a feeding disk and a guiding roller. The feeding disk is rotatably connected to the feeding rack. The guiding roller is arranged between the feeding rack and the feeding component. The metal strip is wound around the guiding roller, and the metal strip is guided to be horizontal by the guiding roller.

9. The semi-open spring clip continuous forming device according to claim 8, wherein, The feeding component includes a linear slide and a finger cylinder. The finger cylinder is arranged on the linear slide and is used to clamp the metal strip. The finger cylinder reciprocates through the linear slide to achieve step-by-step feeding of the metal strip.

10. The semi-open spring clamp continuous forming device according to claim 9, characterized in that, The feeding rack extends towards the blanking component to be provided with a mounting arm, and the linear slide is arranged on the mounting arm.

Citation Information

Patent Citations

  • A leaf spring forming device and its usage method

    CN110695166B