Integrated machine for producing tension spring

Abstract

The application relates to a one-body machine for producing a tension spring, and belongs to the technical field of spring production, which comprises a rack, a steel wire leading-out mechanism, a spring body winding forming mechanism and a spring end hook bending mechanism are arranged on the rack respectively. The application has novel and compact structure, the spring body winding forming mechanism and the spring end hook bending mechanism are arranged, the two are used in cooperation, the tension spring can be directly and integrally processed and formed, and the production efficiency is greatly improved and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of spring production, and in particular to an integrated machine for producing tension springs. Background Technology

[0002] Currently, such as Figure 6 The tension spring 10 shown has a wide range of applications, especially in the field of electric vehicle support.

[0003] In the existing production process, the spring body needs to be stretched and manufactured first, and then the two ends of the spring are bent and shaped by equipment. This process requires additional transfer, loading and unloading steps, which not only affects production efficiency but also greatly increases production costs. Summary of the Invention

[0004] The purpose of this application is to provide an integrated machine for producing tension springs, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides an integrated machine for producing tension springs, employing the following technical solution:

[0006] An integrated machine for producing tension springs includes a frame, on which a wire guide mechanism, a spring body winding and forming mechanism, and a spring end hook bending mechanism are respectively provided;

[0007] The wire feeding mechanism includes a fixed seat that is vertically fixed on the frame. A wire guide tube is provided in the middle of the fixed seat. A wire feeding assembly is provided on one side of the fixed seat. A front wire bending assembly, an end wire cutting assembly and an initial positioning assembly are installed on the side of the fixed seat near the wire guide tube.

[0008] The spring body winding and forming mechanism includes a turntable rotatably mounted on the frame, a first stepper motor for driving the turntable to rotate is fixed inside the frame, a ball screw slide module is mounted on the turntable, a first servo motor is fixed on the slider of the ball screw slide module, and a winding shaft is fixed on the output shaft of the first servo motor.

[0009] The spring end hook bending mechanism includes a bracket fixed on the frame, a first cylinder fixed on the bracket, a slide block fixed to the piston rod end of the first cylinder, the slide block being slidably connected to the bracket, a clamping cylinder fixed on the slide block, and bending assemblies symmetrically installed on both sides of the slide block. The bending assembly includes a connecting rod fixed on the slide block, a central rod fixed on the connecting rod, an external gear slewing bearing mounted on the central rod, a lever fixed on the outer ring of the external gear slewing bearing, and a second servo motor fixed on the connecting rod, the second servo motor being used to drive the external gear slewing bearing to rotate.

[0010] The wire conveying assembly includes a mounting frame fixed on the frame, on which a drive roller and a driven roller are mounted, and a second stepper motor for driving the drive roller to rotate is also fixed on the mounting frame.

[0011] The front wire bending assembly includes a second cylinder fixed on the fixed base, a pusher is fixed to the end of the piston rod of the second cylinder, and a stop rod is fixed next to the pusher;

[0012] The end wire cutting assembly includes a third cylinder fixed on the fixed base, and a cutter is fixed to the piston rod end of the third cylinder;

[0013] The initial positioning assembly includes a fourth cylinder fixed on the fixed base. A stop block is fixed to the end of the piston rod of the fourth cylinder. The stop block, the cutter, and the pusher are all positioned facing the wire guide tube and can all move to the outlet of the wire guide tube.

[0014] Preferably, in order to improve the clamping effect, a clamping block is installed on the jaws of the clamping cylinder, and the surface of the clamping block is provided with a recessed clamping groove.

[0015] The winding shaft includes an integrally formed connecting seat and a winding rod, and the connecting seat has a slot on the side surface near the winding rod.

[0016] Preferably, the clamping cylinder has a through hole, a push rod is movably disposed in the through hole, a fifth cylinder is fixed on the slide, and the piston rod end of the fifth cylinder is fixed to the push rod.

[0017] By adopting the above technical solution, the push rod can realize the automatic unloading of the spring. After the spring end is bent into a hook shape, the clamping cylinder releases the spring, and the fifth cylinder works to drive the push rod forward and push the spring out.

[0018] In summary, this application includes at least one of the following beneficial technical effects: the integrated machine for producing tension springs has a novel and compact structure. By setting up a spring body winding and forming mechanism and a spring end hook bending mechanism, the two work together to directly process and form tension springs in one go, which greatly improves production efficiency and reduces production costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 These are schematic diagrams of the overall structure from different perspectives of embodiments of this application.

[0021] Figure 3 This is a schematic diagram of the overall structure from another perspective of an embodiment of this application.

[0022] Figure 4 This is a schematic diagram illustrating the structure of the spring body winding and forming mechanism in the embodiments of this application.

[0023] Figure 5 This is a schematic diagram illustrating the bending mechanism of the spring end hook in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the structure used in the prior art to illustrate a tension spring.

[0025] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Fixed base; 12. Wire guide tube; 2. Wire conveying assembly; 3. Spring body winding and forming mechanism; 31. Turntable; 32. First stepper motor; 33. Ball screw slide module; 34. First servo motor; 35. Winding shaft; 351. Connecting seat; 352. Winding rod; 353. Slot; 4. Spring end hook bending mechanism; 41. Bracket; 42. First cylinder; 43. Slide; 44. Clamping cylinder 441. Cylinder; 45. Clamping block; 46. Bending assembly; 47. Linkage frame; 48. Center rod; 49. External gear slewing bearing; 40. Lever; 41. Second servo motor; 52. Front wire bending assembly; 53. Second cylinder; 64. Push head; 75. Stop rod; 86. End wire cutting assembly; 97. Third cylinder; 10. Cutting knife; 11. Initial positioning assembly; 12. Fourth cylinder; 13. Stop block; 14. Push rod; 15. Fifth cylinder. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses an integrated machine for producing tension springs, as described in the embodiments below. Figure 1-5The machine includes a frame 1, on which a wire guide mechanism, a spring body winding and forming mechanism 3 and a spring end hook bending mechanism 4 are respectively installed. The existing electrical control system is used to automatically control the mechanisms at each station.

[0028] The wire feeding mechanism includes a fixed seat 11 vertically fixed on the frame 1, a wire guide tube 12 in the middle of the fixed seat 11, and a wire conveying assembly 2 on one side of the fixed seat 11. The wire conveying assembly 2 includes a mounting frame fixed on the frame 1, a drive roller and a driven roller are mounted on the mounting frame, and a second stepper motor for driving the drive roller to rotate is also fixed on the mounting frame. A front wire bending assembly 5, an end wire cutting assembly 6 and an initial positioning assembly 7 are mounted on the side of the fixed seat 11 near the wire guide tube 12.

[0029] The front wire bending assembly 5 includes a second cylinder 51 fixed on the fixed base 11. A pusher 52 is fixed to the end of the piston rod of the second cylinder 51, and a stop rod 53 is fixed next to the pusher 52.

[0030] The end wire cutting assembly 6 includes a third cylinder 61 fixed on the fixing base 11, and a cutter 62 is fixed to the piston rod end of the third cylinder 61.

[0031] The initial positioning component 7 includes a fourth cylinder 71 fixed on the fixed base 11. A stop block 72 is fixed to the end of the piston rod of the fourth cylinder 71. The stop block 72, the cutter 62 and the pusher 52 are all arranged facing the wire guide tube 12 and can all move to the outlet of the wire guide tube 12.

[0032] The spring body winding and forming mechanism 3 includes a turntable 31 rotatably mounted on a frame 1. A first step motor 32 for driving the turntable 31 to rotate is fixed inside the frame 1. A ball screw slide module 33 is mounted on the turntable 31. A first servo motor 34 is fixed on the slider of the ball screw slide module 33. A winding shaft 35 is fixed on the output shaft of the first servo motor 34. The winding shaft 35 includes an integrally formed connecting seat 351 and a winding rod 352. A slot 353 is opened on the side surface of the connecting seat 351 near the winding rod 352.

[0033] The spring end bending mechanism 4 includes a bracket 41 fixed on the frame 1, a first cylinder 42 fixed on the bracket 41, a slide block 43 fixed to the piston rod end of the first cylinder 42, the slide block 43 slidably connected to the bracket 41, a clamping cylinder 44 fixed on the slide block 43, and a clamping block 441 installed on the jaws of the clamping cylinder 44 for better clamping of the spring. The clamping block 441 has a recessed clamping groove on its surface. Bending components 45 are symmetrically installed on both sides of the slide block 43. The bending components 45 include a connecting rod frame 451 fixed on the slide block 43, a center rod 452 fixed on the connecting rod frame 451, an external gear slewing bearing 453 installed on the center rod 452, a lever 454 fixed on the outer ring of the external gear slewing bearing 453, and a second servo motor 455 fixed on the connecting rod frame 451. The second servo motor 455 is used to drive the external gear slewing bearing 453 to rotate.

[0034] Reference Figure 5 The clamping cylinder 44 has a through hole, and a push rod 8 is movably disposed in the through hole. A fifth cylinder 9 is fixed on the slide 43. The piston rod end of the fifth cylinder 9 is fixed to the push rod 8. The push rod 8 can realize the automatic unloading of the spring. After the end of the spring is bent into a hook shape, the clamping cylinder 44 releases the spring, and the fifth cylinder 9 works to drive the push rod 8 to move forward and push the spring out.

[0035] The implementation principle of the integrated machine for producing tension springs according to the embodiments of this application is as follows:

[0036] First, a short section of steel wire extends from the wire guide tube 12 via the steel wire conveying assembly 2. Second, the second cylinder 51 in the front wire bending assembly 5 extends, driving the pusher 52 to bend the extended section from the root of the wire guide tube 12. Third, the ball screw slide module 33 in the spring body winding and forming mechanism 3 drives the winding shaft 35 to move towards the wire guide tube 12. Simultaneously, the steel wire conveying assembly 2 further conveys the steel wire forward until it is inserted into the slot 353 on the winding shaft 35. Fourth, the fourth cylinder 71 in the initial positioning assembly 7 operates, driving the stop block 72 to press the steel wire into the slot 353. Afterward, the first servo motor 34 drives the winding shaft 35 to rotate, while the ball screw slide module 33 drives the winding shaft 35 to move back, winding the spring body. During this process, the initial positioning assembly 7 resets. Fifth, the spring... After the spring winding is completed, the first stepper motor 32 drives the turntable 31 to rotate, bending the steel wire at the end of the spring. The first servo motor 34 reverses and drives the winding shaft 35 to disengage from the spring via the ball screw slide module 33. At this time, the spring is in a suspended state at the end. In the sixth step, the first cylinder 42 in the spring end hook bending mechanism 4 drives the slide block 43 to move to one side of the spring and clamps and fixes the spring through the clamping cylinder 44. The center rod 452 and the lever 454 in the bending assembly 45 are inserted into the reserved small steel wire segments at both ends of the spring. After that, the third cylinder 61 in the end steel wire cutting assembly 6 drives the cutter 62 to cut the steel wire at the end of the spring from the steel wire guide tube 12. Finally, the second servo motor 455 in the bending assembly 45 drives the lever 454 to perform a circular motion, so that the small steel wire segment can rotate around the center rod 452 to form a hook.

[0037] 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, principle and application direction of this application should be covered within the scope of protection of this application.

Claims

1. An integrated machine for producing tension springs, characterized in that: The machine includes a frame (1), on which a wire guide mechanism, a spring body winding and forming mechanism (3), and a spring end hook bending mechanism (4) are respectively provided. The wire guide mechanism includes a fixed base (11) vertically fixed on the frame (1), a wire guide tube (12) in the middle of the fixed base (11), a wire conveying assembly (2) on one side of the fixed base (11), and a front wire bending assembly (5), an end wire cutting assembly (6) and an initial positioning assembly (7) installed on the side of the fixed base (11) near the wire guide tube (12). The spring body winding and forming mechanism (3) includes a turntable (31) rotatably mounted on the frame (1). A first stepper motor (32) for driving the turntable (31) to rotate is fixed inside the frame (1). A ball screw slide module (33) is mounted on the turntable (31). A first servo motor (34) is fixed on the slider of the ball screw slide module (33). A winding shaft (35) is fixed on the output shaft of the first servo motor (34). The spring end hook bending mechanism (4) includes a bracket (41) fixed on the frame (1), a first cylinder (42) fixed on the bracket (41), a slide (43) fixed to the piston rod end of the first cylinder (42), the slide (43) being slidably connected to the bracket (41), a clamping cylinder (44) fixed on the slide (43), and bending assemblies (45) symmetrically installed on both sides of the slide (43). The bending assembly (45) includes... The system includes a linkage frame (451) fixed on the slide (43), a central rod (452) fixed on the linkage frame (451), an external gear slewing bearing (453) mounted on the central rod (452), a lever (454) fixed on the outer ring of the external gear slewing bearing (453), and a second servo motor (455) fixed on the linkage frame (451). The second servo motor (455) is used to drive the external gear slewing bearing (453) to rotate.

2. The integrated machine for producing tension springs according to claim 1, characterized in that: The wire conveying assembly (2) includes a mounting frame fixed on the frame (1), on which a drive roller and a driven roller are mounted, and a second stepper motor for driving the drive roller to rotate is also fixed on the mounting frame.

3. The integrated machine for producing tension springs according to claim 1, characterized in that: The front wire bending assembly (5) includes a second cylinder (51) fixed on the fixed base (11). A pusher (52) is fixed to the end of the piston rod of the second cylinder (51), and a stop rod (53) is fixed next to the pusher (52). The end wire cutting assembly (6) includes a third cylinder (61) fixed on the fixed base (11), and a cutter (62) is fixed to the end of the piston rod of the third cylinder (61). The initial positioning component (7) includes a fourth cylinder (71) fixed on the fixed base (11). The piston rod end of the fourth cylinder (71) is fixed with a stop block (72). The stop block (72), the cutter (62) and the pusher (52) are all arranged facing the wire guide (12) and can all move to the outlet of the wire guide (12).

4. The integrated machine for producing tension springs according to claim 1, characterized in that: The clamping cylinder (44) has a clamping block (441) installed on its jaws, and the surface of the clamping block (441) has a recessed clamping groove.

5. The integrated machine for producing tension springs according to claim 1, characterized in that: The winding shaft (35) includes an integrally formed connecting seat (351) and a winding rod (352), and the connecting seat (351) has a slot (353) on the side surface near the winding rod (352).

6. The integrated machine for producing tension springs according to claim 1, characterized in that: The clamping cylinder (44) has a through hole, and a push rod (8) is movably disposed in the through hole. A fifth cylinder (9) is fixed on the slide (43), and the piston rod end of the fifth cylinder (9) is fixed to the push rod (8).

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