A coiled spring production device

Abstract

The application relates to a coil spring production device, and belongs to the technical field of coil spring production devices.The coil spring production device comprises an operation disc, a bending mechanism for bending the tail part of a coil spring and a transfer clamping mechanism for clamping and transferring the coil spring to the bending mechanism.The operation disc comprises an operation base, a discharging passage and an operation unit; the bending mechanism comprises a working base, a push plate assembly, a limiting assembly, a bending assembly, a jacking assembly and a driving assembly; and the transfer clamping mechanism comprises a transfer rack and a clamping jaw assembly.The operation unit is further provided with an abutting part, a rotating part, a heating part, a rolling part and a cutting part and the like.The application realizes automatic production of the coil spring, including winding, cutting, transferring and tail part bending and the like, and improves the production efficiency and the product quality.

Description

Technical Field

[0001] This application relates to the field of coil spring production equipment technology, and in particular to a coil spring production equipment. Background Technology

[0002] Coil springs are a common mechanical component with wide applications in many fields. With the continuous development of industry, the demand for coil springs is increasing, and traditional manual winding methods can no longer meet the needs of efficient and high-precision mass production.

[0003] In traditional coil spring production, relatively simple equipment and processes are typically used. Steel bars are usually wound into shape manually or semi-automatically, and the tail of the coil spring needs to be bent away from the coiled side during production. The coil springs are usually transferred manually, which is inefficient, prone to errors, and relies heavily on worker experience and skills, making it difficult to guarantee consistent quality and production. Manual operation is not only inefficient but also makes it difficult to ensure the precision and quality of the coil springs, easily leading to dimensional deviations and inaccurate bending angles. The simple transfer method also makes the coil springs susceptible to damage during transport, affecting the product yield.

[0004] Therefore, there is an urgent need to design a coil spring production equipment to improve the production efficiency of coil springs. Summary of the Invention

[0005] To improve the production efficiency of coil springs, this application provides a coil spring production apparatus.

[0006] The coil spring production apparatus provided in this application adopts the following technical solution: A coil spring production apparatus includes an operation panel, a bending mechanism arranged on the side of the operation panel for bending the tail of the produced coil spring, and a transfer clamping mechanism arranged on the side of the operation panel for clamping and transferring the produced coil spring onto the bending mechanism. The control panel includes an operating base, a discharge passage arranged at the center of the operating base for discharging steel bars, and an operating unit arranged circumferentially around the discharge passage for coiling steel bars. The bending mechanism includes a working base, a push plate assembly arranged on the working base for pushing the coil spring, a limiting assembly arranged on the working base for limiting the coil spring, a bending assembly arranged on the side of the limiting assembly for bending the tail end of the coil spring, a lifting assembly arranged on the working base for lifting the coil spring, and a driving assembly arranged on the push plate assembly for driving the limiting assembly to move and driving the lifting assembly to lift during the retraction process of the push plate assembly. The transfer clamping mechanism includes a transfer frame and a gripper assembly rotatably arranged on the transfer frame for clamping the coil spring on the operating panel.

[0007] By adopting the above technical solutions, the material discharge path of the operating plate can stably discharge material, and the operating unit can coil the steel strip, ensuring the initial forming of the coil spring and guaranteeing the basic shape and dimensional accuracy of the coil spring. The transfer and clamping mechanism can accurately transfer the coil spring from the operating plate to the bending mechanism, improving the transfer efficiency of the coil spring. The push plate assembly of the bending mechanism can push the coil spring to the appropriate position, and the limiting assembly can accurately limit the coil spring, preventing displacement of the coil spring during bending and ensuring the accuracy of bending. The lifting assembly can lift the coil spring during material discharge, and the drive assembly can drive the limiting assembly to move and drive the lifting assembly to lift during the retraction of the push plate assembly, enabling all components of the bending mechanism to work together, improving the continuity and stability of the work, thereby improving the production quality and efficiency of the coil spring.

[0008] Optionally, the operating unit includes an abutting component arranged on the side of the discharge passage, a rotating component for clamping and rotating the steel bar, a heating component arranged on the opposite side of the rotating component for heating the steel bar, a roller pressing component arranged vertically on the discharge passage for winding the steel bar, and a cutting component arranged on the lower side of the discharge passage for cutting the steel bar.

[0009] By adopting the above technical solution, the abutting component can abut and position the steel strip, the rotating component can clamp the steel strip and make it rotate, which is conducive to the coiling of the steel strip, the heating component can heat the steel strip, which is convenient for subsequent winding operations, the rolling component can vertically wind the steel strip, and the cutting component can cut the steel strip, thus jointly realizing the coiling and cutting of the steel strip in the coil spring production process.

[0010] Optionally, the abutting component includes a first slide rail arranged on the operating base, a first slider slidably arranged on the first slide rail, and a first sliding cylinder for driving the first slider to slide. An abutting ring is provided on the end of the first slider facing the discharge passage. The rotating component includes a second slide rail arranged on the operating base, a second slider slidably arranged on the second slide rail, and a second sliding cylinder for driving the second slider to slide. A rotating seat is provided on the end of the second slider facing the discharge passage, and a rotating block is provided on the end of the rotating seat. A snap-fit ​​groove for snapping a steel bar is provided on the end face of the rotating block. The width of the snap-fit ​​groove is greater than the width of the steel bar, and the diameter of the rotating block is smaller than the diameter of the abutment ring.

[0011] By adopting the above technical solution, the first slide rail, the first slider, and the first sliding cylinder of the abutting component cooperate to enable the abutting ring to move flexibly to a suitable position to abut the steel bar, which facilitates subsequent operations; the second slide rail, the second slider, and the second sliding cylinder of the rotating component cooperate to enable the rotating block to move to engage the steel bar. The engaging groove facilitates the engagement of the steel bar, and the width of the engaging groove is greater than the width of the steel bar, while the diameter of the rotating block is smaller than the diameter of the abutting ring, ensuring that the steel bar is engaged smoothly and can be smoothly rotated into a coil within the abutting ring, thereby realizing the function of coiling the steel bar.

[0012] Optionally, the heating component includes a third slide rail arranged on the operating base, a third slider arranged on the third slide rail, and a third sliding cylinder for driving the third slider. A heating plate is provided on the end of the third slider facing the discharge passage. The heating plate is a U-shaped plate, and a steel bar is inserted into the heating plate for heating. The roller pressing component includes a fourth slide rail arranged on the operating base, a fourth slider arranged on the fourth slide rail, and a fourth sliding cylinder for driving the fourth slider. The end of the fourth slider facing the discharge passage is provided with a roller for abutting against the steel bar.

[0013] By adopting the above technical solution, the third slide rail, the third slider, and the third sliding cylinder of the heating component can move the heating plate, and the U-shaped heating plate can wrap the steel strip to achieve effective heating, which facilitates subsequent winding operations; the fourth slide rail, the fourth slider, and the fourth sliding cylinder of the rolling component can move the rolling roller to abut against the steel strip, which helps the steel strip to be wound into a coiled spring, improving the production efficiency and quality of coiled springs.

[0014] Optionally, the cutting component includes a fifth slide rail arranged on the operating base, a fifth slider slidably arranged on the fifth slide rail, a fifth sliding cylinder driving the fifth slider, a sixth slide rail arranged on the operating base, a sixth slider slidably arranged on the sixth slide rail, and a sixth sliding cylinder driving the sixth slider. A cutter is provided at the end of the fifth slider, and a cutting plate is provided at the end of the sixth slider. The cutter is tangent to the cutting plate to cut the steel strip. A receiving plate for receiving the coil spring is vertically arranged on the operating base.

[0015] By adopting the above technical solution, the cooperation of the fifth slide rail, the fifth slider, the fifth sliding cylinder, the sixth slide rail, the sixth slider, and the sixth sliding cylinder enables the relative movement of the cutter and the cutting plate, so as to cut the steel strip by tangential contact between the cutter and the cutting plate; the vertically set receiving plate on the operating base can receive the coiled spring after cutting, ensuring the orderly subsequent processing of the coiled spring.

[0016] Optionally, the pusher assembly includes an arc-shaped baffle arranged on the machine base, a guide rail arranged on the machine base for the arc-shaped baffle to slide horizontally, and a sliding motor for driving the arc-shaped baffle to slide.

[0017] By adopting the above technical solution, the arc-shaped baffle slides horizontally on the guide rail, which can be driven by the sliding motor, and can push the coil spring to move on the working base, which facilitates subsequent operations such as limiting and bending of the coil spring.

[0018] Optionally, the limiting assembly includes a limiting plate fixedly arranged on the working base, an eccentric wheel rotatably arranged on the working base, a movable plate installed on the side of the eccentric wheel, and a first spring installed on the back of the movable plate and abutting against the working base; the movable plate and the limiting plate are provided with anti-slip grooves, the movable plate locks the coil spring towards the limiting plate, and the first spring is arranged in two sets distributed on both sides of the eccentric wheel; the eccentric wheel is provided with a lever for rotating the eccentric wheel.

[0019] By adopting the above technical solution, the coil spring production device can transfer the coil spring from the operating plate to the bending mechanism through the transfer clamping mechanism. The operating plate discharges the material through the discharge passage and the steel strip is coiled through the operating unit. The push plate assembly pushes the coil spring. The limiting plate and the movable plate in the limiting assembly cooperate and can effectively lock the coil spring through the anti-slip groove to prevent the coil spring from sliding during the bending process. The first spring is distributed on both sides of the eccentric wheel to ensure the stability of the movable plate's movement. The lever can easily rotate the eccentric wheel to control the movement of the movable plate, thereby achieving stable limiting of the coil spring and facilitating subsequent bending operations.

[0020] Optionally, the bending assembly has a limiting arc-shaped groove arranged on the working base, a rotating rod is provided in the limiting arc-shaped groove, and the diameter of the rotating rod is adapted to the diameter of the limiting arc-shaped groove. A rotating disk is provided at the bottom end of the rotating rod, and the rotating disk is driven to rotate by a rotating disk motor. The rotating disk is arranged concentrically with the limiting arc-shaped groove. A bending block for bending steel bars is arranged at the top of the rotating rod, and a limiting post for limiting the bending of steel bars is arranged on the working base. An adjusting plate is provided on the working base, an adjusting block is provided on the adjusting plate, and an adjusting spring is provided on the end face of the adjusting block facing the limiting assembly. The adjusting spring is arranged coaxially with the limiting plate.

[0021] By adopting the above technical solution, the rotating rod rotates within the limiting arc groove, and the rotating disk is driven to rotate by the rotating disk motor, which can accurately drive the bending block to perform bending operation on the steel strip; the limiting post can limit the bending of the steel strip to ensure bending accuracy; the adjusting block and adjusting spring on the adjusting plate can elastically adjust the limiting component to ensure the stability of the coil bending process.

[0022] Optionally, the lifting assembly has a lifting plate that is vertically arranged on the working base, a lifting rod that is vertically fixed on the bottom side of the lifting plate, a first wedge-shaped surface that is arranged on the side of the lifting rod away from the lifting plate, and a first movable groove for the lifting rod to move up and down is provided in the working base.

[0023] By adopting the above technical solution, the lifting plate can be raised and lowered on the working base, and the coil spring can be lifted; the first wedge-shaped surface at the bottom of the lifting rod cooperates with the drive component to realize the lifting movement of the lifting component; the first movable groove in the working base provides the lifting rod with the movement space to ensure the stable operation of the lifting component.

[0024] Optionally, the drive assembly includes a first movable part disposed in the working base for driving the lever to move and a second movable part disposed in the working base for driving the lifting assembly to lift. The first movable component has a first synchronizing rod arranged on the side of the arc-shaped baffle, a first rack arranged on the end of the first synchronizing rod, a first gear meshing on the first rack and hinged on the working base, a second rack meshing on the other side of the first gear, and a pull rod arranged on the side of the second rack. The other side of the pull rod is hinged to the lever. The bottom sides of the first rack and the second rack are provided with rack slide rails for the first rack and the second rack to slide. The second movable component has a second synchronizing rod arranged on the bottom side of the arc-shaped baffle. A sliding plate is provided at the end of the second synchronizing rod. A slot is provided in the middle of the sliding plate. The width of the slot is adapted to the width of the lifting rod. A second wedge-shaped surface is provided at the end of the slot away from the second synchronizing rod, and the second wedge-shaped surface is adapted to the first wedge-shaped surface. A second movable groove for sliding of the second synchronizing rod is provided in the working base.

[0025] By adopting the above technical solution, the drive assembly of the coil spring production device includes a first movable component and a second movable component. The first movable component, through the cooperation of a first synchronizing rod, a first rack, a first gear, a second rack, and a pull rod, can drive the lever to move, thereby driving the eccentric wheel to rotate and control the state of the limit assembly. The second movable component, through the adaptation of a second synchronizing rod, a sliding plate, and a first wedge surface and a second wedge surface, can drive the lifting assembly to lift the coil spring during the retraction of the push plate assembly. This makes the positioning, bending, and lifting operations of the coil spring interconnected and more automated, improving the efficiency and stability of the bending process during coil spring production.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The coil spring production device achieves automation of coil spring production, bending and transfer through the cooperation of the operation panel, bending mechanism and transfer clamping mechanism; the operation panel can complete the coiling of steel bars, the bending mechanism can bend the tail of the coil spring, and the transfer clamping mechanism can transfer the coil spring to the bending mechanism, which greatly improves production efficiency. 2. The various mechanisms of the coil spring production device work together precisely. The operating unit of the control panel precisely controls the coiling of the steel strip, and the bending mechanism accurately completes the bending of the tail of the coil spring. This precise coordination ensures the dimensional accuracy and bending angle accuracy of the coil spring, effectively solving the problem that traditional production methods cannot guarantee accuracy and quality, and making the quality of the coil spring more stable. 3. The transfer and clamping mechanism avoids the problem of coil spring damage caused by manual handling and simple conveying devices. The gripper assembly of the transfer and clamping mechanism can stably transfer the coil spring from the operating plate to the bending mechanism, reducing the possibility of coil spring damage during the transfer process, thereby improving the product qualification rate and solving the problem of easy damage to coil springs by traditional transfer methods. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the operation panel according to an embodiment of this application.

[0029] Figure 3 This application Figure 2 Enlarged view of region A.

[0030] Figure 4 This is a schematic diagram of the bending mechanism according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the first movable component in an embodiment of this application.

[0032] Figure 6 This is a cross-sectional schematic diagram of the second movable component according to an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the transfer and clamping mechanism according to an embodiment of this application.

[0034] Figure 8 This is a schematic diagram of the material discharge component according to an embodiment of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Control panel; 11. Control base; 12. Discharge passage; 13. Control unit; 131. Abutting component; 1311. First slide rail; 1312. First slider; 13121. Abutting ring; 1313. First sliding cylinder; 132. Rotating component; 1321. Second slide rail; 1322. Second slider; 13221. Rotating seat; 13222. Rotating block; 13223. Groove; 1323. Second sliding cylinder; 133. Heating component; 1331. Third slide rail; 1332. Third slider; 13 321. Heating plate; 1333. Third sliding cylinder; 134. Roller pressing component; 1341. Fourth slide rail; 1342. Fourth slider; 13421. Roller pressing wheel; 1343. Fourth sliding cylinder; 135. Cutting component; 1351. Fifth slide rail; 1352. Sixth slide rail; 1353. Fifth slider; 13531. Cutter; 1354. Sixth slider; 13541. Cutting plate; 1355. Fifth sliding cylinder; 1356. Sixth sliding cylinder; 136. Receiving plate; 2. Bending mechanism; 21. Machine base; 22. Push Plate assembly; 221, arc-shaped baffle; 222, sliding motor; 23, limiting assembly; 231, limiting plate; 232, eccentric wheel; 2321, lever; 233, movable plate; 234, first spring; 24, bending assembly; 241, limiting arc groove; 242, rotating disk; 243, bending block; 244, limiting post; 245, adjusting block; 246, adjusting spring; 247, turntable motor; 25, lifting assembly; 251, lifting plate; 252, lifting rod; 253, first wedge surface; 26, drive assembly; 261, first movable plate Components; 2611, First Synchronizing Rod; 2612, First Rack; 2613, First Gear; 2614, Second Rack; 2615, Pull Rod; 262, Second Movable Component; 2621, Second Synchronizing Rod; 2622, Sliding Plate; 26221, Empty Slot; 2623, Second Wedge Surface; 3, Transfer Clamping Mechanism; 31, Transfer Frame; 32, Clamping Grip Assembly; 321, Robotic Arm; 322, Transfer Clamping Grip; 4, Discharge Assembly; 41, Discharge Frame; 42, Discharge Push Plate; 43, Discharge Grip; 44, Output Belt; 5, Coil Spring. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0037] This application discloses a coil spring production apparatus.

[0038] Reference Figure 1As shown, a coil spring production device includes an operating plate 1, a bending mechanism 2, and a transfer and clamping mechanism 3. The operating plate 1 is used to coil steel bars, the bending mechanism 2 is used to bend the tail of the coil spring 5, and the transfer and clamping mechanism 3 is used to clamp and transfer the coil spring 5 produced on the operating plate 1 to the bending mechanism 2. This achieves the effect of efficient and precise production of coil spring 5. At the same time, the various mechanisms have clear division of labor and work together, avoiding the inefficiency and inaccuracy of traditional manual operation.

[0039] Reference Figure 1 and Figure 2 As shown, the operating panel 1 includes an operating base 11, a discharge passage 12, and an operating unit 13. The discharge passage 12 is located at the center of the operating base 11 and is used for discharging steel bars. The operating unit 13 is arranged in a ring around the discharge passage 12 and is used for coiling steel bars.

[0040] The discharge passage 12 is used to input the rolled steel strip into the operation panel 1 through the external output device. Through the cooperation of each operation unit 13, the steel strip is wound and formed.

[0041] Reference Figure 2 and Figure 3 As shown, the operating unit 13 includes an abutment component 131, a rotating component 132, a heating component 133, a rolling component 134, and a cutting component 135. The abutment component 131 includes a first slide rail 1311, a first slider 1312, and a first sliding cylinder 1313. The first slide rail 1311 is arranged on the operating base 11, and the first slider 1312 is slidably arranged on the first slide rail 1311. The first sliding cylinder 1313 drives the first slider 1312 to slide. An abutment ring 13121 is provided on the end of the first slider 1312 facing the discharge passage 12. The abutment ring 13121 is made of a high melting point wear-resistant metal material and is circular for abutting the wound steel strip.

[0042] Reference Figure 2 and Figure 3As shown, the rotating component 132 includes a second slide rail 1321, a second slider 1322, and a second sliding cylinder 1323. The second slide rail 1321 is arranged on the operating base 11, and the second slider 1322 is slidably arranged on the second slide rail 1321. The second sliding cylinder 1323 drives the second slider 1322 to slide. The second slide rail 1321 is arranged perpendicular to the discharge passage 12, enabling the second slider 1322 to move horizontally to contact the steel bar. A rotating seat 13221 is provided on the end of the second slider 1322 facing the discharge passage 12, and a rotating block 13222 is provided on the end of the rotating seat 13221. A locking groove for locking a steel bar is provided on the end face of the rotating block 13222. The span of the locking groove is greater than the width of the steel bar, and the diameter of the rotating block 13222 is smaller than the diameter of the abutment ring 13121. The rotating block 13222 is coaxial during operation, and the abutment ring 13121 is fitted onto the rotating block 13222. The rotating block 13222 is made of high-strength alloy steel to ensure it will not be damaged during rotation. The rotating block 13222 is driven to rotate by a rotary motor, which is located on the end face of the second slider 1322.

[0043] Reference Figure 2 and Figure 3 As shown, the heating component 133 includes a third slide rail 1331, a third slider 1332, and a third sliding cylinder 1333. The third slide rail 1331 is arranged on the operating base 11, and the third slider 1332 is slidably arranged on the third slide rail 1331. The third sliding cylinder 1333 drives the third slider 1332. A heating plate 13321 is provided on the end of the third slider 1332 facing the discharge passage 12. The heating plate 13321 is a U-shaped plate, and the steel bar is heated after being inserted into the heating plate 13321. The third slide rail 1331 is arranged perpendicular to the discharge passage 12, and at the same time, the third slide rail 1331 is coaxially arranged with the second slide rail 1321. The steel bar output from the discharge passage 12 is heated and then conveyed to the slot of the rotating block 13222. The rotating block 13222 rotates and winds the heated steel bar. The heating plate 13321 adopts electromagnetic induction heating, which has higher heating efficiency. When the rotating block 13222 rotates to the specified number of revolutions according to the preset program and then stops rotating, the second slider 1322 retracts and removes the rotating block 13222 from the wound steel strip. At this time, when the rotating block 13222 retracts, the steel strip will also shift towards the direction of movement of the second slider 1322. The abutment ring 13121 plays a limiting role, which can realize the separation of the steel strip and the rotating block 13222.

[0044] Reference Figure 2 and Figure 3As shown, the rolling component 134 includes a fourth slide rail 1341, a fourth slider 1342, and a fourth sliding cylinder 1343. The fourth slide rail 1341 is arranged on the operating base 11, the fourth slider 1342 is slidably arranged on the fourth slide rail 1341, and the fourth sliding cylinder 1343 drives the fourth slider 1342. A rolling roller 13421 for abutting the steel strip is provided on the end of the fourth slider 1342 facing the discharge passage 12. The rolling roller 13421 is generally made of metal and can provide appropriate downward pressure when abutting the steel strip. The output steel strip continues to be bent into a coil under the action of the rolling roller 13421.

[0045] A receiving plate 136 for receiving the coil spring 5 is vertically arranged on the end face of the operating base 11. The receiving plate 136 is a rectangular plate, the width of which is greater than the width of the steel strip, and the length of the receiving plate 136 is greater than the overall length of the formed coil spring 5. During the downward pressing of the roller 13421, the steel strip is coiled into a spiral coil spring 5, and the side of the rotating and enlarged coil spring 5 abuts against the receiving plate 136. When the formed coil spring 5 is output to the set value, the fourth slider 1342 moves away from the discharge passage 12, so the roller 13421 no longer presses against the steel strip, and the steel strip is output straight out of the discharge passage 12. The third slider 1332 slides and moves, the heating plate 13321 moves closer to the steel strip, and the steel strip stops outputting, allowing the heating plate 13321 to continue heating the steel strip.

[0046] Reference Figure 2 and Figure 3 As shown, the cutting component 135 has a fifth slide rail 1351 and a sixth slide rail 1352 arranged on the operating base 11. A fifth slider 1353 is arranged on the fifth slide rail 1351 and is driven by a cylinder to slide on the fifth slide rail 1351. A sixth slider 1354 is arranged on the sixth slide rail 1352 and is driven by a sixth sliding cylinder 1356 to slide on the sixth slide rail 1352. A cutter 13531 is provided at the end of the fifth slider 1353, and a cutting plate 13541 is provided at the end of the sixth slider 1354. The fifth slider 1353 and the sixth slider 1354 are mirror images distributed on both sides of the discharge passage 12. When the fifth slider 1353 and the sixth slider 1354 move simultaneously, the cutter 13531 cuts the heated steel strip tangentially with the cutting plate 13541. The cutter 13531 and the cutting plate 13541 are made of high-hardness steel to ensure the sharpness and durability of the cut. First, the steel strip is clamped by the abutting part 131 and the rotating part 132. The heating part 133 heats the steel strip to make it easier to wind. The rolling part 134 assists in the winding. Finally, the cutting part 135 cuts the wound coil spring 5, thus realizing the coiling operation of the steel strip.

[0047] Reference Figure 4 and Figure 5As shown, the bending mechanism 2 includes a working base 21, a push plate assembly 22 arranged on the working base 21 for pushing the coil spring 5, a limiting assembly 23 arranged on the working base 21 for limiting the coil spring 5, a bending assembly 24 arranged on the side of the limiting assembly 23 for bending the tail end of the coil spring 5, a lifting assembly 25 arranged on the working base 21 for lifting the coil spring 5, and a driving assembly 26 arranged on the push plate assembly 22 for driving the movement of the limiting assembly 23 and driving the lifting assembly 25 to lift during the retraction process of the push plate assembly 22.

[0048] The pusher assembly 22 includes an arc-shaped baffle 221, a guide rail, and a sliding motor 222. The arc-shaped baffle 221 is arranged on the machine base 21, the guide rail allows the arc-shaped baffle 221 to slide horizontally, and the sliding motor 222 drives the arc-shaped baffle 221 to slide. The arc-shaped baffle 221 is made of metal, and its arc shape allows it to better fit with the coil spring 5 and push the coil spring 5 to move. The guide rail is a linear guide rail to ensure the sliding accuracy of the arc-shaped baffle 221. The sliding motor 222 can be a stepper motor, which can precisely control the moving distance of the arc-shaped baffle 221.

[0049] Reference Figure 4 and Figure 5 As shown, the limiting assembly 23 includes a limiting plate 231 fixedly arranged on the working base 21, an eccentric wheel 232 rotatably arranged on the working base 21, a movable plate 233 installed on the side of the eccentric wheel 232, and a first spring 234 installed on the back of the movable plate 233 and abutting against the working base 21. Anti-slip grooves are provided on the movable plate 233 and the limiting plate 231. The movable plate 233 locks the coil spring 5 towards the limiting plate 231. Two sets of the first spring 234 are arranged on both sides of the eccentric wheel 232. A lever 2321 for rotating the eccentric wheel 232 is provided on the eccentric wheel 232. The limiting plate 231 and the movable plate 233 are made of metal, and the anti-slip grooves increase the friction with the coil spring 5, thus better limiting the coil spring 5. The lever 2321 drives the eccentric wheel 232 to rotate, and the movable plate 233 on the eccentric wheel 232 moves toward the limiting plate 231, reducing the distance between it and the limiting plate 231 to achieve clamping and limiting of the steel bar located between them.

[0050] The bending assembly 24 has a limiting arc-shaped groove 241 arranged on the working base 21. A rotating rod is installed in the limiting groove, and the diameter of the rotating rod is adapted to the diameter of the limiting arc-shaped groove 241. A rotating disk 242 is installed at the bottom end of the rotating rod. The rotating disk 242 is driven to rotate by a rotating disk motor 247. The rotating disk 242 is concentrically arranged with the limiting arc-shaped groove 241. A bending block 243 for bending steel bars is arranged at the top of the rotating rod. A limiting post 244 for limiting the bending of steel bars is arranged on the working base 21. An adjusting plate is provided on the working base 21. An adjusting block 245 is provided on the adjusting plate, and an adjusting spring 246 is provided on the end face of the adjusting block 245 facing the limiting assembly 23. The adjusting spring 246 is arranged coaxially with the limiting plate 231. The limiting arc-shaped groove 241 and the rotating rod are made of high-strength aluminum alloy and can withstand large forces. The bending block 243 is made of hard alloy to ensure bending accuracy and durability. The steel bar at the tail of the coil spring 5 abuts against the adjusting spring 246 to determine whether the coil spring 5 has fully moved to the bending position. At the same time, the adjusting spring 246 itself has a certain degree of flexibility, so the adjusting spring 246 will not affect the bending block 243 when it moves.

[0051] Reference Figure 5 and Figure 6 As shown, the lifting assembly 25 has a lifting plate 251 that is lifted and arranged on the working base 21. A lifting rod 252 is vertically fixed on the bottom side of the lifting plate 251. A first wedge-shaped surface 253 is arranged on the side of the lifting rod 252 away from the lifting plate 251. A first movable groove for lifting rod 252 to be lifted and lowered is provided in the working base 21.

[0052] Reference Figure 5 and Figure 6 As shown, the drive assembly 26 includes a first movable part 261 disposed in the working base 21 for driving the lever 2321 to move, and a second movable part 262 disposed in the working base 21 for driving the lifting assembly 25 to lift.

[0053] The first movable component 261 includes a first synchronizing rod 2611 arranged on the side of the arc-shaped baffle 221, a first rack 2612 arranged on the end of the first synchronizing rod 2611, a first gear 2613 meshing with the first rack 2612 and hinged to the working base 21, a second rack 2614 meshing with the other side of the first gear 2613, and a pull rod 2615 arranged on the side of the second rack 2614. The other side of the pull rod 2615 is hinged to the lever 2321. Rack rails are provided on the bottom sides of the first rack 2612 and the second rack 2614 for sliding of the first rack 2612 and the second rack 2614.

[0054] The arc-shaped baffle 221 moves toward the limiting plate 231, causing the first rack 2612 on the first synchronizing rod 2611 to move together. The movement of the first rack 2612 causes the first gear 2613 to rotate. The rotation of the first gear 2613 causes the second rack 2614 to move in the opposite direction to the first rack 2612, that is, to move toward the arc-shaped baffle 221. The movement of the second rack 2614 causes the pull rod 2615 to move, and the pull rod 2615 pulls the lever 2321 to rotate the eccentric wheel 232.

[0055] The second movable component 262 has a second synchronizing rod 2621 arranged on the bottom side of the arc-shaped baffle 221. A sliding plate 2622 is provided at the end of the second synchronizing rod 2621. A slot 26221 is provided in the middle of the sliding plate 2622, and the width of the slot 26221 is adapted to the width of the lifting rod 252. A second wedge-shaped surface 2623 is provided at the end of the slot 26221 away from the second synchronizing rod 2621, and the second wedge-shaped surface 2623 is adapted to the first wedge-shaped surface 253. A second movable groove is provided in the working base 21 for the second synchronizing rod 2621 to slide. The slot 26221 ensures that when the arc-shaped baffle 221 moves towards the limiting component 23, the lifting rod 252 and the sliding plate 2622 do not interfere with each other. When the coil spring 5 bends, the arc-shaped baffle 221 begins to retract. The first rack 2612 and the second rack 2614 move relative to each other, causing the eccentric wheel 232 to rotate in the opposite direction. The movable plate 233 moves away from the limiting plate 231, releasing the steel bar. The arc-shaped baffle 221 returns to its initial position, unlocking the entire coil spring 5. At the same time, the first wedge surface 253 on the lifting rod 252 abuts against the second wedge surface 2623 on the sliding plate 2622. At this time, the arc-shaped baffle 221 continues to retract. The second wedge surface 2623 and the first wedge surface 253, which were originally abutting, interact with each other. The movement of the sliding plate 2622 will cause the lifting rod 252 to rise, thereby causing the entire lifting plate 251 to rise and lift the entire coil spring 5.

[0056] Reference Figure 7 As shown, the transfer clamping mechanism 3 has a transfer frame 31 arranged on the side of the operating base 11. The transfer frame 31 is equipped with a rotating base to enable the entire transfer frame 31 to rotate. The transfer frame 31 is also equipped with a movable robotic arm 321, on which a transfer clamping claw 322 is provided for clamping the cut coil spring 5. The configuration structure of the robotic arm 321 and the transfer clamping claw 322 adopts existing technology, so it will not be described in detail. When the steel bar is output horizontally, the transfer clamping claw 322 is inserted into one end of the horizontal steel bar, and it is immediately locked when the cutting is completed to clamp the coil spring 5. The transfer frame 31 rotates and places the coil spring 5 on the working base 21 through the robotic arm 321 and the transfer clamping claw 322. At this time, the position of the horizontal steel bar on the coil spring 5 is between the limiting plate 231 and the movable plate 233.

[0057] Reference Figure 8 As shown, a discharge assembly 4 is provided on the side of the bending mechanism 2. The discharge assembly 4 includes a discharge frame 41, a discharge push plate 42 slidably arranged on the discharge frame 41, a discharge gripper 43 for clamping the bent coil spring 5 on the discharge push plate 42, and an output belt 44 arranged on the side of the bending mechanism 2 for discharge. The discharge frame 41 is provided with a push plate slide rail for the discharge push plate 42 to move, and the discharge push plate 42 is pushed by a push cylinder. A telescopic motor is provided on the discharge push plate 42 to realize the lifting and lowering movement of the discharge gripper 43, and finally the coil spring 5 is placed on the output belt 44 to complete the discharge.

[0058] The implementation principle of the coil spring production device in this application embodiment is as follows: After the device is started, the steel strip that has been rolled is output from the discharge passage 12 in the center of the operating plate 1. First, the U-shaped heating plate 13321 of the heating component 133 moves to both sides of the steel strip to heat and soften it. After heating is completed, the first slider 1312 of the abutment component 131 moves forward, and the second slider 1322 of the rotating component 132 moves forward, so that the locking groove at the end of the rotating block 13222 locks the front end of the heated steel strip, and the abutment ring 13121 is sleeved on the outside of the rotating block 13222 to limit the movement. The rotary motor drives the rotating block 13222 to rotate, and the steel strip begins to wind. After winding to a preset number of turns, the rotating block 13222 stops rotating and retracts, and the abutment ring 13121 prevents the steel strip from moving backward, so that the two separate. The roller 13421 of the rolling component 134 presses down to assist the steel strip in forming a spiral coil spring 5.

[0059] When the coil spring 5 is formed to the set length, the heating plate 13321 approaches the steel bar again and continues to heat it. Then, the cutting component 135 operates: the cutter 13531 and the cutting plate 13541 move towards each other from both sides, cutting the heated and softened steel bar. At this time, the mechanical arm 321 of the transfer clamping mechanism 3 drives the clamping claw to insert into one end of the horizontal steel bar and lock it. The rotating base rotates to transfer the coil spring 5 to the working base 21 of the bending mechanism 2, and positions the tail of the coil spring 5 between the limiting plate 231 and the movable plate 233. When the bending mechanism 2 is working, the arc-shaped baffle 221 moves forward along the guide rail to push the coil spring 5. At the same time, the rack and pinion transmission of the first movable component 261 and the pull rod 2615 drive the lever 2321 to rotate the eccentric wheel 232, driving the movable plate 233 to approach the limiting plate 231 and clamp the tail of the coil spring 5. Next, the turntable motor 247 of the bending assembly 24 drives the rotating rod to rotate along the limiting arc groove 241, and the bending block 243 cooperates with the limiting post 244 to precisely bend the tail of the coil spring 5. After completion, the arc baffle 221 retracts, and the wedge-shaped surface of the second movable part 262 cooperates to make the lifting rod 252 rise, and the lifting plate 251 pushes out the finished coil spring 5, completing the entire production process.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coil spring production apparatus, characterized in that, It includes an operating panel (1), a bending mechanism (2) arranged on the side of the operating panel (1) for bending the tail of the produced coil spring (5), and a transfer clamping mechanism (3) arranged on the side of the operating panel (1) for clamping and transferring the produced coil spring (5) onto the bending mechanism (2). The operating panel (1) includes an operating base (11), a discharge passage (12) arranged in the center of the operating base (11) for discharging steel bars, and an operating unit (13) arranged in a ring around the discharge passage (12) for coiling steel bars. The bending mechanism (2) includes a working base (21), a push plate assembly (22) arranged on the working base (21) for pushing the coil spring (5), a limiting assembly (23) arranged on the working base (21) for limiting the coil spring (5), a bending assembly (24) arranged on the side of the limiting assembly (23) for bending the tail end of the coil spring (5), a lifting assembly (25) arranged on the working base (21) for lifting the coil spring (5), and a driving assembly (26) arranged on the push plate assembly (22) for driving the movement of the limiting assembly (23) and driving the lifting assembly (25) to lift during the retraction process of the push plate assembly (22). The transfer clamping mechanism (3) includes a transfer frame (31) and a gripper assembly (32) rotatably arranged on the transfer frame (31) for clamping the coil spring (5) on the operation disk (1).

2. The coil spring production apparatus according to claim 1, characterized in that, The operating unit (13) has an abutting member (131) arranged on the side of the discharge passage (12), a rotating member (132) for clamping and rotating the steel bar, a heating member (133) arranged on the opposite side of the rotating member (132) for heating the steel bar, a rolling member (134) arranged vertically on the discharge passage (12) for winding the steel bar, and a cutting member (135) arranged on the lower side of the discharge passage (12) for cutting the steel bar.

3. The coil spring production apparatus according to claim 2, characterized in that, The abutting component (131) includes a first slide rail (1311) arranged on the operating base (11), a first slider (1312) slidably arranged on the first slide rail (1311), and a first sliding cylinder (1313) for driving the first slider (1312) to slide. An abutting ring (13121) is provided on the end of the first slider (1312) facing the discharge passage (12). The rotating component (132) includes a second slide rail (1321) arranged on the operating base (11), a second slider (1322) slidably arranged on the second slide rail (1321), and a second sliding cylinder (1323) for driving the second slider (1322) to slide. A rotating seat (13221) is provided on the end of the second slider (1322) facing the discharge passage (12). A rotating block (13222) is provided on the end of the rotating seat (13221). A snap-fit ​​groove for snapping a steel bar is provided on the end face of the rotating block (13222). The width of the snap-fit ​​groove is greater than the width of the steel bar. The diameter of the rotating block (13222) is smaller than the diameter of the abutment ring (13121).

4. The coil spring production apparatus according to claim 3, characterized in that, The heating component (133) includes a third slide rail (1331) arranged on the operating base (11), a third slider (1332) slidably arranged on the third slide rail (1331), and a third sliding cylinder (1333) for driving the third slider (1332). A heating plate (13321) is provided on the end of the third slider (1332) facing the discharge passage (12). The heating plate (13321) is a U-shaped plate. A steel bar is inserted into the heating plate (13321) for heating. The roller pressing component (134) includes a fourth slide rail (1341) arranged on the operating base (11), a fourth slider (1342) slidably arranged on the fourth slide rail (1341), and a fourth sliding cylinder (1343) for driving the fourth slider (1342). The end of the fourth slider (1342) facing the discharge passage (12) is provided with a roller pressing wheel (13421) for abutting against the steel bar.

5. A coil spring production apparatus according to claim 4, characterized in that, The cutting component (135) includes a fifth slide rail (1351) arranged on the operating base (11), a fifth slider (1353) slidably arranged on the fifth slide rail (1351), a fifth sliding cylinder (1355) driving the fifth slider (1353), a sixth slide rail (1352) arranged on the operating base (11), a sixth slider (1354) slidably arranged on the sixth slide rail (1352), and a sixth sliding cylinder (1356) driving the sixth slider (1354). A cutter (13531) is provided at the end of the fifth slider (1353), and a cutting plate (13541) is provided at the end of the sixth slider (1354). The cutter (13531) is tangent to the cutting plate (13541) to cut the steel strip. A receiving plate (136) for receiving the coil spring (5) is vertically arranged on the operating base (11).

6. The coil spring production apparatus according to claim 1, characterized in that, The push plate assembly (22) includes an arc-shaped baffle (221) arranged on the working base (21), a guide rail arranged on the working base (21) for the arc-shaped baffle (221) to slide horizontally, and a sliding motor (222) for driving the arc-shaped baffle (221) to slide.

7. A coil spring production apparatus according to claim 6, characterized in that, The limiting component (23) includes a limiting plate (231) fixedly arranged on the working base (21), an eccentric wheel (232) rotatably arranged on the working base (21), a movable plate (233) installed on the side of the eccentric wheel (232), and a first spring (234) installed on the back of the movable plate (233) and abutting against the working base (21); the movable plate (233) and the limiting plate (231) are provided with anti-slip grooves, the movable plate (233) locks the coil spring (5) towards the limiting plate (231), and the first spring (234) is arranged in two sets distributed on both sides of the eccentric wheel (232); the eccentric wheel (232) is provided with a lever (2321) for rotating the eccentric wheel (232).

8. A coil spring production apparatus according to claim 7, characterized in that, The bending assembly (24) has a limiting arc-shaped groove (241) arranged on the working base (21). A rotating rod is provided in the limiting arc-shaped groove (241), and the diameter of the rotating rod is adapted to the diameter of the limiting arc-shaped groove (241). A rotating disk (242) is provided at the bottom end of the rotating rod. The rotating disk (242) is driven to rotate by a rotating disk motor (247). The rotating disk (242) and the limiting arc-shaped groove (241) are arranged concentrically. The top of the rotating rod is provided with a bending block (243) for bending steel bars, and the working base (21) is provided with a limiting post (244) for limiting the bending of steel bars; the working base (21) is provided with an adjusting plate, the adjusting plate is provided with an adjusting block (245), and the end face of the adjusting block (245) facing the limiting component (23) is provided with an adjusting spring (246), and the adjusting spring (246) is arranged coaxially with the limiting plate (231).

9. A coil spring production apparatus according to claim 8, characterized in that, The lifting assembly (25) has a lifting plate (251) that is lifted and lowered on the working base (21). A lifting rod (252) is vertically fixed on the bottom side of the lifting plate (251). A first wedge-shaped surface (253) is arranged on the side of the lifting rod (252) away from the lifting plate (251). A first movable groove for the lifting rod (252) to be lifted and lowered is provided in the working base (21).

10. A coil spring production apparatus according to claim 9, characterized in that, The drive assembly (26) includes a first movable part (261) disposed in the working base (21) for driving the lever (2321) to move, and a second movable part (262) disposed in the working base (21) for driving the lifting assembly (25) to lift. The first movable component (261) has a first synchronizing rod (2611) arranged on the side of the arc-shaped baffle (221), a first rack (2612) arranged on the end of the first synchronizing rod (2611), a first gear (2613) meshing with the first rack (2612) and hinged to the working base (21), a second rack (2614) meshing with the other side of the first gear (2613) and a pull rod (2615) arranged on the side of the second rack (2614). The other side of the pull rod (2615) is hinged to the lever (2321). The bottom sides of the first rack (2612) and the second rack (2614) are provided with rack slide rails for the first rack (2612) and the second rack (2614) to slide. The second movable component (262) has a second synchronizing rod (2621) arranged on the bottom side of the arc-shaped baffle (221). A sliding plate (2622) is provided at the end of the second synchronizing rod (2621). A slot (26221) is provided in the middle of the sliding plate (2622). The width of the slot (26221) is adapted to the width of the lifting rod (252). A second wedge surface (2623) is provided at the end of the slot (26221) away from the second synchronizing rod (2621), and the second wedge surface (2623) is adapted to the first wedge surface (253). A second movable groove for the second synchronizing rod (2621) to slide is provided in the working base (21).

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