A hot coiling spring machine for spring production

Abstract

The utility model discloses a kind of hot coil spring machines of spring production, it is related to spring production field, including L support, the upper surface of L support is provided with shaft, the outside of shaft is provided with replacement mechanism, the replacement mechanism includes fixed sleeve, the fixed sleeve is fixedly connected in the outer ring of shaft, by the replacement mechanism being set, if different diameter spring needs to be produced, new reel does not need to be hoisted, according to the diameter of spring to be produced, the hot reel barrel specification used is determined, if using inner layer reel: rotate trapezoidal screw, until the second through slot of outermost layer clamping frame is completely separated from stop block, the outermost layer hot reel both ends is pulled out by holding with tool, at this time, the clamping frame of inside hot reel barrel and stop block keep clamping stop block length adaptation inner layer second through slot groove depth, without additional adjustment, shorten specification switching time, adapt new specification hot reel barrel, to make its entire switching process without complex debugging, fast response multi-specification production demand.

Description

Technical Field

[0001] This utility model relates to the field of spring production, and in particular to a hot-rolling spring production machine. Background Technology

[0002] Springs, as a common basic component in the industrial field, are widely used in the automotive, machinery, and electronics industries. Their production needs to be matched with different diameters, pitches, and lengths according to downstream demands. The hot coil spring machine is the core equipment for spring forming. It winds heated metal wire into a preset spring shape by rotating the hot coil shaft. The specifications of the hot coil shaft directly determine the diameter of the spring.

[0003] For example, a patent entitled "A Hot Coiling Spring Machine for Spring Production" (patent application number: 202420314010.1) discloses a hot coiling spring machine for spring production. Through the structural cooperation of the positioning mechanism, it can use the simultaneous rotation of two eccentric transmission plates to cause the positioning frame to clamp and position the hot coil body. However, in actual use, when it is necessary to change the hot coil body of different specifications, the device uses an eccentric clamping mechanism to achieve rapid positioning and locking of the hot coil. This requires stopping the machine, loosening the clamping mechanism, removing the old coil, hoisting the new coil, aligning and installing, clamping and positioning, and starting the machine for debugging. This makes the whole process cumbersome and time-consuming, and cannot quickly respond to temporary, small-batch, multi-specification spring production tasks.

[0004] Therefore, it is necessary to propose a hot-rolled spring production machine to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a hot-rolled spring production machine to solve the problems of cumbersome and time-consuming reel changing, complex debugging, and inability to quickly respond to multi-specification production needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot-rolled spring production machine, comprising an L-shaped bracket, a rotating shaft being provided on the upper surface of the L-shaped bracket, and a replacement mechanism being provided on the outside of the rotating shaft;

[0007] The replacement mechanism includes a fixed sleeve, which is fixedly connected to the outer ring of the rotating shaft. A limiting sleeve is fixedly connected to the side wall of the fixed sleeve. A trapezoidal screw is rotatably connected inside the limiting sleeve, and a stop block is slidably connected inside the limiting sleeve. The stop block is threaded to the outside of the trapezoidal screw. The side of the stop block away from the trapezoidal screw has a rectangular protrusion structure, and the length of the protrusion decreases from the inside to the outside along the radial direction of the fixed sleeve. A first through groove is formed on the side wall of the fixed sleeve, and the first through groove is linearly arranged along the radial direction of the fixed sleeve. A retaining frame is inserted into the first through groove of the fixed sleeve. There are three clip frames, each inserted into a corresponding first through slot. The outer surface of the clip frame has a second through slot, and the depth of the second through slot on the clip frame decreases sequentially from the inside to the outside along the radial direction of the fixing sleeve. The stop block is inserted into the corresponding second through slot of the clip frame. The side wall of the fixing sleeve has a third through slot, which is linearly arranged along the radial direction of the fixing sleeve. A positioning plate is inserted into the third through slot of the fixing sleeve. A hot-rolling cylinder is fixedly connected to the positioning plate and the end of the clip frame away from the limiting sleeve. There are three hot-rolling cylinders, which are sequentially sleeved from the inside to the outside.

[0008] Preferably, the upper surface of the L-bracket is provided with a moving mechanism, the moving mechanism including a moving frame, the moving frame being fixedly connected to the top of the L-bracket, a second servo motor being fixedly connected to the side wall of the moving frame away from the fixed sleeve, a first screw being fixedly connected to the output end of the second servo motor, the first screw being rotatably connected inside the moving frame, a moving plate being threadedly connected to the outside of the first screw, a guide post being fixedly connected inside the moving frame, and the moving plate being slidably connected to the outside of the guide post.

[0009] Preferably, the first servo motor is fixedly connected to the side of the moving plate closest to the second servo motor, and the rotating shaft is fixedly connected to the output end of the first servo motor.

[0010] Preferably, a limit clamp is inserted into the end face of the rotating shaft away from the first servo motor.

[0011] Preferably, a first hydraulic cylinder is fixedly connected to the side of the L-bracket near the limiting clamp, and a pressure roller is rotatably connected to the output end of the first hydraulic cylinder.

[0012] Preferably, a second hydraulic cylinder is fixedly connected to the upper surface of the L-bracket, and a guide roller is rotatably connected to the output end of the second hydraulic cylinder.

[0013] Preferably, a support frame is fixedly connected to the upper surface of the L-bracket, and ball bearings are movably connected to the inner wall of the support frame.

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

[0015] 1. In this utility model, the replacement mechanism eliminates the need to install new rolls when producing springs of different diameters. The specifications of the hot roll cylinder are determined based on the diameter of the spring to be produced. If the inner roll is used, the trapezoidal screw is rotated until the stop block is completely disengaged from the second through groove of the outermost frame. The two ends of the outermost hot roll are then pulled outwards with the help of tools. At this time, the frame of the inner hot roll cylinder remains locked with the stop block. The length of the stop block matches the depth of the inner second through groove. No additional adjustment is required, which shortens the specification switching time and adapts to the new specification hot roll cylinder. As a result, the entire switching process does not require complicated debugging and can quickly respond to the production needs of multiple specifications.

[0016] 2. Furthermore, the second servo motor drives the first screw to rotate, which in turn moves the moving plate along the guide post, thereby adjusting the lateral position of the rotating shaft and the hot roll cylinder to meet the processing requirements of springs of different lengths. At the same time, it can be used in conjunction with the roll changing action to adjust the position of the components. Attached Figure Description

[0017] Figure 1 A schematic diagram of the external structure of the hot-rolled spring machine used to produce the springs of this utility model.

[0018] Figure 2 This is a front sectional view of the hot-rolled spring machine used in the production of the springs according to this utility model.

[0019] Figure 3 This is a rear view structural diagram of the hot-rolled spring machine used to produce the springs according to this utility model.

[0020] Figure 4 This is a schematic diagram of the unfolded structure of the replacement mechanism of this utility model.

[0021] Figure 5 This is a cross-sectional view of the right side of the hot-rolled spring machine used to produce the springs according to this utility model.

[0022] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. L-bracket; 2. Moving mechanism; 3. First servo motor; 4. Rotating shaft; 5. Support frame; 6. Changing mechanism; 7. Limiting chuck; 8. First hydraulic cylinder; 9. Pressure roller; 10. Second hydraulic cylinder; 11. Guide roller; 12. Ball bearing; 21. Moving frame; 22. Second servo motor; 23. First screw; 24. Moving plate; 25. Guide post; 61. Fixing sleeve; 62. Limiting sleeve; 63. Trapezoidal screw; 64. Stop block; 65. Hot rolling cylinder; 66. Positioning plate; 67. Clamping frame. Detailed Implementation

[0024] This utility model provides, for example Figures 1-6The hot-rolled spring production machine shown is designed to solve the problems of cumbersome and time-consuming reel changing, complex debugging, and inability to quickly respond to multi-specification production needs.

[0025] The equipment is supported by L-bracket 1, the top of which is used to install all transmission and processing components, providing a stable processing platform for the entire equipment.

[0026] The moving mechanism 2 is installed on the upper surface of the L-bracket 1. This mechanism includes a moving frame 21, a second servo motor 22, a first screw 23, a moving plate 24, and a guide post 25. The moving frame 21 is fixed to the top of the L-bracket 1. The second servo motor 22 is fixed to the side wall of the moving frame 21 away from the fixed sleeve 61, and its output end is fixedly connected to the first screw 23. The first screw 23 is rotatably installed inside the moving frame 21. The guide post 25 is fixed inside the moving frame 21 parallel to the first screw 23. The moving plate 24 is threadedly connected to the first screw 23 and slidably connected to the guide post 25. It can move linearly along the guide post 25 under the drive of the second servo motor 22 to adapt to the processing requirements of springs of different lengths. It can also adjust the position of the components in conjunction with the reel changing action.

[0027] The first servo motor 3 is fixed on the side of the movable plate 24 near the second servo motor 22, and its output end is fixedly connected to the rotating shaft 4 to provide rotational power to the rotating shaft 4; the end of the rotating shaft 4 away from the first servo motor 3 is connected to the limiting clamp 7, which can clamp the spring material head introduced by the guide roller 11 between the limiting clamp 7 and the hot rolling cylinder 65 to prevent the material from shifting.

[0028] The replacement mechanism 6 is mounted outside the rotating shaft 4 and consists of a fixed sleeve 61, a limiting sleeve 62, a trapezoidal screw 63, a stop block 64, a hot-rolling shaft cylinder 65, a positioning plate 66, and a retaining frame 67. The fixed sleeve 61 is fixed to the outer ring of the rotating shaft 4, and its side wall has two sets of linearly arranged through grooves, a first through groove and a third through groove, arranged radially. The limiting sleeve 62 is fixed to the side wall of the fixed sleeve 61, and the trapezoidal screw 63 is rotatably installed inside it. The stop block 64, which is threadedly connected to the trapezoidal screw 63, is slidably installed. The stop block 64 is located away from the trapezoidal screw 63. The surface has a rectangular protrusion structure, and the length of the protrusion decreases from the inside to the outside along the radial direction of the fixing sleeve 61. The stop 64 closest to the innermost hot roll cylinder 65 is the longest. The three clamping frames 67 are respectively inserted into the first through groove of the fixing sleeve 61. The outer surface of each clamping frame 67 has a second through groove along the radial direction of the fixing sleeve 61, and the depth of the second through groove decreases from the inside to the outside. The stop 64 is partially inserted into the second through groove of the clamping frame 67. The clamping frame 67 can be clamped or released by rotating the trapezoidal screw 63 to drive the stop 64 to move.

[0029] Three positioning plates 66 are respectively inserted into the third through slot of the fixing sleeve 61. The positioning plates 66 and the end of the frame 67 away from the limiting sleeve 62 are fixedly connected to a hot rolling cylinder 65. The three hot rolling cylinders 65 have different specifications and are nested from the inside to the outside. When different spring diameters are required, the trapezoidal screw 63 is rotated to move the stop block 64 away from the frame 67 of the outermost hot rolling cylinder 65, and the outermost hot rolling cylinder 65 can be removed by pulling it outward to achieve diameter switching.

[0030] The core function of the replacement mechanism 6 is to enable rapid switching between multiple specifications of hot roll drums 65. Three different specifications of hot roll drums 65 are pre-installed for use, eliminating the need to hoist new rolls. Through the cooperation of trapezoidal screws 63 and stop blocks 64, the clamping frame 67 can be quickly tightened or loosened to remove and replace the hot roll drums 65, thus shortening the specification switching time.

[0031] A support frame 5 is fixedly connected to the upper surface of the L-bracket 1, and a ball bearing 12 is movably connected to the inner wall of the support frame 5 to support the rotation of the auxiliary rotating shaft 4.

[0032] The first hydraulic cylinder 8 is fixed on the side of the L bracket 1 near the limit clamp 7. Its output end is rotatably connected to the pressure roller 9, which can press the end of the wound spring with the hot rolling cylinder 65 to ensure that the end of the spring is fixed after forming.

[0033] The second hydraulic cylinder 10 is fixed on the upper surface of the L-bracket 1, and its output end is rotatably connected to the guide roller 11 to guide the spring material into the processing area and ensure the stability of the material conveying direction.

[0034] The moving mechanism 2 drives the first screw 23 to rotate via the second servo motor 22, which in turn drives the moving plate 24 to move along the guide post 25, thereby adjusting the lateral position of the rotating shaft 4 and the hot winding cylinder 65 to meet the processing requirements of springs of different lengths. At the same time, it can be used in conjunction with the winding cylinder change action to adjust the position of the components.

[0035] During use, the control method of this utility model is controlled by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail. The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The supply of power is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] Adjust the limiting clamp 7 to align it with the selected end of the hot coil drum 65; adjust the position of the guide roller 11 using the second hydraulic cylinder 10 to ensure the material conveying path matches the hot coil drum 65; adjust the first hydraulic cylinder 8 to place the pressure roller 9 in the initial standby position without contacting the hot coil drum 65; pass one end of the spring material through the guide roller 11 and feed it between the hot coil drum 65 and the limiting clamp 7; clamp the material head between the limiting clamp 7 and the hot coil drum 65 using the limiting clamp 7; start the first servo motor 3 to drive the rotating shaft 4, the fixing sleeve 61, and... The hot coil drum 65 rotates at a preset speed, and the raw material is gradually wound into shape as the hot coil drum 65 rotates. At the same time, according to the spring length requirement, the second servo motor 22 is started to drive the moving plate 24 to move along the guide post 25 and adjust the lateral position of the hot coil drum 65. When the spring is wound to the preset length, the first hydraulic cylinder 8 is started to push the pressure roller 9 close to the hot coil drum 65 and press the end of the spring against the surface of the hot coil drum 65 to complete the fixing of the spring end. Then the first servo motor 3 is stopped, the limit clamp 7 is released, the raw material is cut off, and the formed spring is removed.

[0037] If springs of different diameters need to be produced, there is no need to hoist a new reel. First, loosen the limit clamp 7 and reset the pressure roller 9 to its initial position. Determine the specification of the hot reel cylinder 65 to be used according to the diameter of the spring to be produced. If the outermost reel is used: directly rotate the trapezoidal screw 63 so that the protrusion of the stop block 64 is inserted into the second through groove of the outermost retaining frame 67. The matching characteristic of "the length of the stop block 64 and the depth of the second through groove of the retaining frame 67" ensures a firm lock. If the inner reel is used: rotate the trapezoidal screw 63 to drive the stop block 64 towards Move away from the retaining frame 67 until the stop block 64 is completely disengaged from the second through groove of the outermost retaining frame 67. Use a tool to hold both ends of the outermost hot coil cylinder 65 and pull it outward to remove it. At this time, the retaining frame 67 and the stop block 64 of the inner hot coil cylinder 65 remain locked together. The length of the stop block 64 matches the depth of the inner second through groove without any additional adjustment. This adapts to the new specification hot coil cylinder 65. Then repeat the spring processing stage to start the production of the new specification spring. The entire switching process does not require complicated debugging and can quickly respond to the production needs of multiple specifications.

Claims

1. A hot-rolling spring production machine, comprising an L-shaped support (1), characterized in that: The upper surface of the L-bracket (1) is provided with a rotating shaft (4), and a replacement mechanism (6) is provided on the outside of the rotating shaft (4); The replacement mechanism (6) includes a fixed sleeve (61), which is fixedly connected to the outer ring of the rotating shaft (4). A limiting sleeve (62) is fixedly connected to the side wall of the fixed sleeve (61). A trapezoidal screw (63) is rotatably connected inside the limiting sleeve (62). A stop (64) is slidably connected inside the limiting sleeve (62). The stop (64) is threaded to the outside of the trapezoidal screw (63). The side of the stop (64) away from the trapezoidal screw (63) is a rectangular protrusion structure, and the length of the protrusion decreases from the inside to the outside along the radial direction of the fixed sleeve (61). A first through groove is opened on the side wall of the fixed sleeve (61). The first through groove is linearly arranged along the radial direction of the fixed sleeve (61). A retaining frame (67) is inserted into the first through groove of the fixed sleeve (61). Three card frames (67) are provided, and the three card frames (67) are respectively inserted into the corresponding first through slots. The outer surface of the card frame (67) is provided with a second through slot. The depth of the second through slot on the card frame (67) decreases from the inside to the outside along the radial direction of the fixing sleeve (61). The stop block (64) is partially inserted into the second through slot corresponding to the card frame (67). The side wall of the fixing sleeve (61) is provided with a third through slot. The third through slot is arranged linearly along the radial direction of the fixing sleeve (61). A positioning plate (66) is inserted into the third through slot of the fixing sleeve (61). A hot roller cylinder (65) is fixedly connected to the end of the positioning plate (66) and card frame (67) away from the limiting sleeve (62). Three hot roller cylinders (65) are provided, and the three hot roller cylinders (65) are sequentially sleeved from the inside to the outside.

2. The hot-rolling spring production machine according to claim 1, characterized in that: The upper surface of the L-bracket (1) is provided with a moving mechanism (2). The moving mechanism (2) includes a moving frame (21). The moving frame (21) is fixedly connected to the top of the L-bracket (1). A second servo motor (22) is fixedly connected to the side wall of the moving frame (21) away from the fixed sleeve (61). A first screw (23) is fixedly connected to the output end of the second servo motor (22). The first screw (23) is rotatably connected inside the moving frame (21). A moving plate (24) is threadedly connected to the outside of the first screw (23). A guide post (25) is fixedly connected inside the moving frame (21). The moving plate (24) is slidably connected to the outside of the guide post (25).

3. A hot-rolling spring production machine according to claim 2, characterized in that: The first servo motor (3) is fixedly connected to the side of the moving plate (24) near the second servo motor (22), and the rotating shaft (4) is fixedly connected to the output end of the first servo motor (3).

4. A hot-rolling spring production machine according to claim 3, characterized in that: A limit clamp (7) is inserted into the end face of the rotating shaft (4) away from the first servo motor (3).

5. A hot-rolling spring production machine according to claim 4, characterized in that: The L-bracket (1) is fixedly connected to a first hydraulic cylinder (8) on the side near the limiting clamp (7), and the output end of the first hydraulic cylinder (8) is rotatably connected to a pressure roller (9).

6. A hot-rolling spring production machine according to claim 5, characterized in that: The upper surface of the L-bracket (1) is fixedly connected to a second hydraulic cylinder (10), and the output end of the second hydraulic cylinder (10) is rotatably connected to a guide roller (11).

7. A hot-rolling spring production machine according to claim 1, characterized in that: The upper surface of the L bracket (1) is fixedly connected to a support frame (5), and the inner wall of the support frame (5) is movably connected to a ball bearing (12).

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