Hot rolling device for suspension spring

Abstract

The utility model belongs to the technical field of spring hot rolling, and discloses a hot rolling device of a suspension spring, and the specific technical scheme is that the hot rolling device of the suspension spring comprises a conveying mechanism, a rolling mechanism, a transferring mechanism and a spring receiving mechanism, the conveying mechanism is provided with a deflector rod and a conveying rolling shaft, and is used for continuously and stably conveying spring bars to the rolling mechanism; a locking device and a main shaft are arranged on the rolling mechanism, the rolling mechanism is used for rolling a spring bar into a spring finished product, the rolled spring finished product is transferred to the spring receiving mechanism through a mechanical gripper, and one-batch production is completed. All working procedures are reasonably arranged, full-automatic production is achieved through intelligent control, the spring hot rolling machine is suitable for hot rolling machining of springs of different sizes, and the production efficiency is improved. Operators do not need to participate in feeding, adjusting and transferring in the middle process, the working efficiency is greatly improved, and the device can be widely applied and popularized.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot coiling of springs, and particularly relates to a hot coiling device for a suspension spring. Background Art

[0002] An automobile suspension spring is the most commonly used elastic element in an automobile suspension system. Due to the advantages of simple structure, good reliability, short manufacturing process flow, low manufacturing cost, and long service life, it has been widely used in the field of automobile shock absorption. At present, each processing procedure of the suspension spring is relatively scattered, the degree of intelligence of each procedure is low, too much manual operation and transfer are required, the fit between adjacent procedures is poor, it is not suitable for automated design and development, the working environment is harsh, the efficiency is low, and the safety is poor. Summary of the Utility Model

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a hot coiling device for a suspension spring, which realizes the automated production of the suspension spring, has strong adaptability and high production efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a hot coiling device for a suspension spring, comprising a conveying mechanism, a coiling mechanism, a transfer mechanism and a spring receiving mechanism.

[0005] The conveying mechanism comprises a feeding frame, on which a plurality of feeding plates are arranged at equal intervals. Two rollers are installed on each feeding plate, and the rollers are driven by a motor to rotate. A power transmission box is arranged on one side of the feeding plate. The output shaft of the power transmission box is hinged to one end of a dial rod through a first link mechanism. The middle of the dial rod is hinged to the top end of a synchronous support. The bottom end of the synchronous support is connected to a synchronous shaft. The two ends of the synchronous shaft are installed on the feeding frame through bearings. A plurality of synchronous supports rotate synchronously, that is, a plurality of dial rods rotate synchronously, ensuring the stable support and displacement of the spring bar placed on the plurality of dial rods. The other end of the dial rod is free and provided with a U-shaped card slot. A plurality of conveying roller shafts are arranged at equal intervals on the feeding frame. A support trough frame is fixed on the feeding frame and is arranged at the end of the feeding frame. The spring bar entering the conveying mechanism is first placed in the U-shaped card slots of the plurality of dial rods, and the plurality of dial rods rotate to send the spring bar to the support trough frame and the plurality of conveying roller shafts, realizing the displacement of the spring bar.

[0006] The coiling mechanism includes a coiling machine frame which is arranged on one side of the feeding machine frame. A coiling motor and a main shaft are installed on the coiling machine frame. The main shaft is slidably installed on the coiling machine frame through a coiling support. The position of the coiling support on the coiling machine frame is driven by a motor to enable the main shaft to approach or disengage from the locking device. A driving gear is installed on the output shaft of the coiling motor, and the driving gear meshes with a driven gear on the locking device. A pressing head is installed on the locking device. The head end of the spring bar stock entering the coiling mechanism is compacted by the pressing head. The coiling motor drives the locking device to rotate and realizes the coiling of the spring. The coiled spring after coiling is sleeved on the main shaft.

[0007] A vertical machine frame is installed on the coiling machine frame. A first slide rail is installed on the vertical machine frame. A guiding support is slidably installed on the first slide rail. A guiding cylinder is installed on the vertical machine frame. The cylinder rod of the guiding cylinder is connected to the guiding support. An adjusting cylinder is installed on the guiding support. The end of the cylinder rod of the adjusting cylinder is equipped with a guiding seat. A pressing wheel and a guiding wheel are installed on the guiding seat. The pressing wheel and the guiding wheel are placed above the main shaft. During the coiling process, the cylinder rod of the adjusting cylinder extends outwards, and the pressing wheel and the guiding wheel press on the top of the coiled spring bar stock. The guiding cylinder pushes the guiding support and the guiding seat to move horizontally to control the radial spacing of the spring.

[0008] The transfer mechanism includes a transfer motor. A top frame is provided at the top of the vertical machine frame. The transfer motor is installed on the top of the top frame. The output shaft of the transfer motor is hinged to the top end of the transfer support through a second linkage mechanism. The middle part of the transfer support is hinged to the vertical machine frame through a pin shaft. A mechanical gripper is installed at the bottom of the transfer support. When the spring on the coiling mechanism is coiled, the mechanical gripper loosens, and the mechanical gripper is driven by the transfer motor to above the spring. The mechanical gripper grabs the spring, the main shaft moves horizontally along the coiling machine frame and disengages from the spring, and the transfer motor drives the transfer support to rotate and send it to the next process.

[0009] The spring receiving mechanism is arranged below the transfer mechanism. The spring receiving mechanism includes a spring receiving machine frame. A second slide rail is installed on the spring receiving machine frame. A spring receiving platform is slidably installed on the second slide rail. Two spring receiving roller shafts are arranged on the spring receiving platform. A first spring receiving support is arranged at one end of the spring receiving platform. A second spring receiving support is arranged at the other end of the spring receiving platform. A spring receiving clamping plate is arranged on the second spring receiving support. The spring receiving clamping plate is arranged above the two spring receiving roller shafts. The spring receiving clamping plate is connected to the cylinder rod of the spring receiving cylinder. The cylinder barrel of the spring receiving cylinder is fixed on the second spring receiving support. The mechanical gripper grabs the spring and places it between the two spring receiving roller shafts. The cylinder rod of the spring receiving cylinder extends outwards, and the spring receiving clamping plate clamps the spring between the first spring receiving support and the second spring receiving support. Driven by the motor, the spring receiving platform slides along the second slide rail and moves away from the mechanical gripper to the next process, which is fast and convenient.

[0010] Two guiding rollers are installed on the guiding seat. The two guiding rollers are arranged in parallel. A spacing for the spring bar stock to pass through is formed between the two guiding rollers to stabilize the transmission of the spring bar stock.

[0011] The bottom of the rolling frame is installed on the main platform through multiple rollers. An adjustment box is arranged on one side of the main platform. The output end of the adjustment box is connected to one side of the rolling frame. Multiple lead screw mechanisms are arranged inside the adjustment box. The motor drives the multiple lead screw mechanisms to move, thereby driving the rolling mechanism to rotate along the rotating shaft in the middle thereof, so as to ensure the need for adjusting the rotation angle during the spring rolling process.

[0012] A jacking support is arranged below the end of the feeding frame. A jacking motor and a jacking support are arranged on the jacking support. The output shaft of the jacking motor is connected to the input shaft of the speed reducer through a belt, and the output shaft of the speed reducer is connected to the jacking support through a worm and worm gear mechanism; when the end position of the feeding frame needs to be raised, the jacking motor rotates forward, the worm and worm gear mechanism works, and the worm rises and drives the position of the jacking support to rise; when the end position of the feeding frame needs to be lowered, the jacking motor rotates in the reverse direction, the worm and worm gear mechanism works, and the worm descends and drives the position of the jacking support to descend.

[0013] Compared with the prior art, the specific beneficial effects of the present utility model are as follows: The present utility model reasonably arranges each process. The spring bar stock is smoothly and continuously fed into the rolling mechanism through the feeding mechanism. The rolled spring is grabbed by the mechanical gripper and placed on the spring receiving trolley to complete one production. The present utility model realizes the full-automatic production of springs with multiple calibers and multiple sizes through intelligent control, and is suitable for the hot rolling processing of springs with different sizes; the present utility model does not require operators to participate in the feeding, adjustment and transfer of the intermediate processes, greatly improving the work efficiency, and can be widely promoted and applied. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the present utility model Figure One .

[0015] Figure 2 is a three-dimensional view of the present utility model Figure Two .

[0016] Figure 3 is the front view of the present utility model.

[0017] Figure 4 is the rear view of the present utility model.

[0018] Figure 5 is the side view of the present utility model.

[0019] Figure 6 is the top view of the present utility model.

[0020] Figure 7 is Figure 2 the partial enlarged view at A in

[0021] Figure 8For Figure 2 Partial enlarged view at position B in

[0022] Figure 9 For Figure 4 Partial enlarged view at position C in

[0023] Figure 10 For Figure 1 Partial enlarged view at position D in

[0024] In the figure, 1 is a conveying mechanism, 101 is a material conveying frame, 102 is a material conveying plate, 103 is a roller, 104 is a power transmission box, 105 is a first link mechanism, 106 is a lever, 107 is a synchronization bracket, 108 is a synchronization shaft, 109 is a spring bar stock, 110 is a support bracket, 111 is a conveying roller shaft, 112 is a lifting bracket, 113 is a lifting motor, 114 is a lifting support, 2 is a rolling mechanism, 21 is a rolling frame, 22 is a rolling motor, 23 is a main shaft, 24 is a rolling support, 25 is a locking device, 26 is a pressure head, 27 is a roller, 28 is an adjustment box, 3 is a transfer mechanism, 301 is a vertical frame, 302 is a first slide rail, 303 is a guiding cylinder, 304 is a guiding bracket, 305 is an adjusting cylinder, 306 is a guiding seat, 307 is a pressure wheel, 308 is a guiding wheel, 309 is a transfer motor, 310 is a top frame, 311 is a second link mechanism, 312 is a transfer bracket, 313 is a mechanical gripper, 314 is a guiding roller, 4 is a spring receiving mechanism, 41 is a spring receiving frame, 42 is a second slide rail, 43 is a spring receiving roller shaft, 44 is a first spring receiving support, 45 is a second spring receiving support, 46 is a spring receiving clamping plate, 47 is a spring receiving cylinder. Detailed implementation mode

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1 - 10 shown, a hot rolling device for suspension springs includes a conveying mechanism 1, a rolling mechanism 2, a transfer mechanism 3 and a spring receiving mechanism 4.

[0027] The conveying mechanism 1 includes a feeding frame 101, on which a plurality of feeding plates 102 are arranged at equal intervals. Two rollers 103 are installed on each feeding plate 102, and the roller 27 is driven by a motor to rotate. On one side of the feeding plate 102, a power transmission box 104 is arranged. The output shaft of the power transmission box 104 is hinged to one end of a lever 106 through a first link mechanism 105. The middle of the lever 106 is hinged to the top of a synchronous support 107. The bottom of the synchronous support 107 is connected to a synchronous shaft 108. Both ends of the synchronous shaft 108 are installed on the feeding frame 101 through bearings. A plurality of synchronous supports 107 rotate synchronously, that is, a plurality of levers 106 rotate synchronously, ensuring the stable support and displacement of the spring rod 109 placed on the plurality of levers 106. The other end of the lever 106 is free and provided with a U-shaped card slot. A plurality of conveyor rollers 111 are arranged at equal intervals on the feeding frame 101. A bracket 110 is fixed on the feeding frame 101, and the bracket 110 is arranged at the end of the feeding frame 101.

[0028] The rolling mechanism 2 includes a rolling frame 21, which is arranged on one side of the feeding frame 101. A rolling motor 22 and a main shaft 23 are installed on the rolling frame 21. The main shaft 23 is slidably installed on the rolling frame 21 through a rolling support 24. The position of the rolling support 24 on the rolling frame 21 is driven by a motor to move the main shaft 23 closer to or away from the locking device 25. A driving gear is installed on the output shaft of the rolling motor 22, and the driving gear meshes with a driven gear on the locking device 25. A pressing head 26 is installed on the locking device 25.

[0029] A vertical frame 301 is installed on the rolling frame 21. A first slide rail 302 is installed on the vertical frame 301. A guiding support 304 is slidably installed on the first slide rail 302. A guiding cylinder 303 is installed on the vertical frame 301. The cylinder rod of the guiding cylinder 303 is connected to the guiding support 304. An adjusting cylinder 305 is installed on the guiding support 304. The end of the cylinder rod of the adjusting cylinder 305 is provided with a guiding seat 306. A pressing wheel 307 and a guiding wheel 308 are installed on the guiding seat 306. The pressing wheel 307 and the guiding wheel 308 are placed above the main shaft 23.

[0030] The transfer mechanism 3 includes a transfer motor 309. A top frame 310 is provided at the top of the vertical frame 301. The transfer motor 309 is installed on the top of the top frame 310. The output shaft of the transfer motor 309 is hinged to the top of a transfer support 312 through a second link mechanism 311. The middle of the transfer support 312 is hinged to the vertical frame 301 through a pin shaft. A mechanical gripper 313 is installed at the bottom of the transfer support 312.

[0031] The spring receiving mechanism 4 is arranged below the transfer mechanism 3. The spring receiving mechanism 4 includes a spring receiving machine frame 41. A second slide rail 42 is installed on the spring receiving machine frame 41. The spring receiving platform is slidably installed on the second slide rail 42. Two spring receiving roller shafts 43 are arranged on the spring receiving platform. A first spring receiving support 44 is arranged at one end of the spring receiving platform. A second spring receiving support 45 is arranged at the other end of the spring receiving platform. A spring receiving clamping plate 46 is arranged on the second spring receiving support 45. The spring receiving clamping plate 46 is arranged above the two spring receiving roller shafts 43. The spring receiving clamping plate 46 is connected to the cylinder rod of the spring receiving cylinder 47. The cylinder barrel of the spring receiving cylinder 47 is fixed on the second spring receiving support 45.

[0032] Two guide rollers 314 are installed on the guide seat 306. The two guide rollers 314 are arranged in parallel. A spacing for the spring bar stock 109 to pass through is formed between the two guide rollers 314 to stabilize the transmission of the spring bar stock 109.

[0033] The bottom of the coiling machine frame 21 is rotatably installed on the main platform through a plurality of rollers 27. An adjustment box 28 is arranged on one side of the main platform. The output end of the adjustment box 28 is connected to one side of the coiling machine frame 21. A plurality of lead screw mechanisms are arranged inside the adjustment box. The motor drives the plurality of lead screw mechanisms to move, thereby driving the coiling mechanism 2 to rotate along the rotating shaft in the middle thereof to ensure the need for adjusting the rotation angle during the spring coiling process.

[0034] A jacking support 112 is arranged below the end of the material conveying machine frame 101. A jacking motor 113 and a jacking support 114 are arranged on the jacking support 112. The output shaft of the jacking motor 113 is connected to the input shaft of the reducer through a belt. The output shaft of the reducer is connected to the jacking support 114 through a worm and worm gear mechanism; when the end position of the material conveying machine frame 101 needs to be raised, the jacking motor 113 rotates forward, the worm and worm gear mechanism works, and the worm rises and drives the position of the jacking support 114 to rise; when the end position of the material conveying machine frame 101 needs to be lowered, the jacking motor 113 rotates in the reverse direction, the worm and worm gear mechanism works, and the worm descends and drives the position of the jacking support 114 to descend to adapt to the processing requirements of springs of different sizes.

[0035] The coiling process of the present utility model is as follows: Under the rolling action of a plurality of roller wheels 103, the spring bar stock 109 is conveyed from the head end to the end of the material conveying machine frame 101. At this time, the spring bar stock 109 is placed in the U-shaped card slots on the tops of a plurality of dial rods 106. A plurality of power transmission boxes 104 are started. The plurality of dial rods 106 rotate under the action of the first link mechanism 105 connected thereto. The plurality of dial rods 106 pick the spring bar stock 109 into the support trough 110. At the same time, the spring bar stock 109 is placed on a plurality of conveying roller shafts 111 in a rolling manner. The spring bar stock 109 is clamped by the clamping device and conveyed to the coiling mechanism 2 under the drive of the cylinder.

[0036] The head end of the spring bar stock 109 passes through the gap between the two guide rollers 314 and enters the coiling mechanism 2. The press head 26 on the locking device 25 compacts the spring bar stock 109. The main shaft 23 moves towards the locking device 25 and runs to the limit position. The rod of the adjustment cylinder 305 extends outwards. The pressing wheel 307 and the guide wheel 308 are both pressed on the top of the spring bar stock 109. The locking device 25 rotates. At the same time, the adjustment cylinder 305 pushes the pressing wheel 307 and the guide wheel 308 to move laterally, realizing the bending and coiling of the spring bar stock 109. The coiled spring is sleeved on the main shaft 23. Driven by the transfer motor 309, the mechanical gripper 313 runs above the spring and grabs the spring. The main shaft 23 moves away from the locking device 25 along the coiling frame 21 and disengages from the spring. The transfer mechanism 3 drives the second link mechanism 311 and the transfer bracket 312 to move. The mechanical gripper 313 carries the spring and moves towards the spring receiving mechanism 4.

[0037] The mechanical gripper 313 places the spring between the two spring receiving roller shafts 43. The rod of the spring receiving cylinder 47 extends outwards. The spring receiving clamping plate 46 clamps the spring between the first spring receiving support 44 and the second spring receiving support 45. Driven by the motor, the spring receiving platform slides along the second slide rail 42 and moves away from the manipulator to the tail coiling process. The spring will complete the final coiling in the tail coiling process. After the spring disengages from the spring receiving mechanism 4, the spring receiving platform returns to the original position to receive the next spring, and the rest of the mechanisms all return to the original position for the next spring coiling.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the scope of the present invention.

Claims

1. A hot coiling device for a suspension spring, characterized in that, It includes a conveying mechanism (1), a rolling mechanism (2), a transfer mechanism (3) and a spring receiving mechanism (4); The conveying mechanism (1) includes a feeding frame (101). A plurality of feeding plates (102) are arranged on the feeding frame (101). Two rollers (103) are installed on each feeding plate (102). A power transmission box (104) is arranged on one side of the feeding plate (102). The output shaft of the power transmission box (104) is hinged to one end of a lever (106) through a first link mechanism (105). The middle of the lever (106) is hinged to the top of a synchronous bracket (107). The bottom end of the synchronous bracket (107) is connected to a synchronous shaft (108). Both ends of the synchronous shaft (108) are installed on the feeding frame (101) through bearings. The other end of the lever (106) is free and provided with a U-shaped card slot. A plurality of conveying roller shafts (111) are arranged at equal intervals on the feeding frame (101). A bracket (110) is fixed on the feeding frame (101). The bracket (110) is arranged at the end of the feeding frame (101); The rolling mechanism (2) includes a rolling frame (21). The rolling frame (21) is arranged on one side of the feeding frame (101). A rolling motor (22) and a main shaft (23) are installed on the rolling frame (21). The main shaft (23) is slidably installed on the rolling frame (21) through a rolling support (24). A driving gear is installed on the output shaft of the rolling motor (22). The driving gear meshes with a driven gear on a locking device (25). A pressing head (26) is installed on the locking device (25). A vertical frame (301) is installed on the rolling frame (21). A first slide rail (302) is installed on the vertical frame (301). A guiding bracket (304) is slidably installed on the first slide rail (302). A guiding cylinder (303) is installed on the vertical frame (301). The cylinder rod of the guiding cylinder (303) is connected to the guiding bracket (304). An adjusting cylinder (305) is installed on the guiding bracket (304). The end of the cylinder rod of the adjusting cylinder (305) is provided with a guiding seat (306). A pressing wheel (307) and a guiding wheel (308) are installed on the guiding seat (306). The pressing wheel (307) and the guiding wheel (308) are placed above the main shaft (23); The transfer mechanism (3) includes a transfer motor (309). A top frame (310) is provided at the top of the vertical frame (301). The transfer motor (309) is installed on the top of the top frame (310). The output shaft of the transfer motor (309) is hinged to the top of a transfer bracket (312) through a second link mechanism (311). The middle of the transfer bracket (312) is hinged to the vertical frame (301) through a pin shaft. A mechanical gripper (313) is installed at the bottom of the transfer bracket (312); The spring receiving mechanism (4) is arranged below the transfer mechanism (3). The spring receiving mechanism (4) includes a spring receiving machine frame (41). A second slide rail (42) is installed on the spring receiving machine frame (41). A spring receiving platform is slidably installed on the second slide rail (42). Two spring receiving roller shafts (43) are arranged on the spring receiving platform. A first spring receiving support (44) is arranged at one end of the spring receiving platform. A second spring receiving support (45) is arranged at the other end of the spring receiving platform. A spring receiving clamping plate (46) is arranged on the second spring receiving support (45). The spring receiving clamping plate (46) is arranged above the two spring receiving roller shafts (43). The spring receiving clamping plate (46) is connected to the cylinder rod of a spring receiving cylinder (47). The cylinder barrel of the spring receiving cylinder (47) is fixed on the second spring receiving support (45).

2. The hot coiling device for a suspension spring according to claim 1, characterized in that, Two guide rollers (314) are installed on the guide seat (306). The two guide rollers (314) are arranged in parallel.

3. The hot coiling device for a suspension spring according to claim 2, characterized in that, The bottom of the coiling machine frame (21) is rollingly installed on the main platform through a plurality of rollers (27). An adjustment box (28) is arranged on one side of the main platform. The output end of the adjustment box (28) is connected to one side of the coiling machine frame (21).

4. The hot coiling device for a suspension spring according to claim 3, wherein, A jacking support (112) is arranged below the end of the material feeding machine frame (101). A jacking motor (113) and a jacking support (114) are arranged on the jacking support (112). The output shaft of the jacking motor (113) is connected to the input shaft of a speed reducer through a belt. The output shaft of the speed reducer is connected to the jacking support (114) through a worm and worm gear mechanism.

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