Device for increasing initial tension of coil spring

Abstract

The utility model discloses a device for increasing the initial tension of a coil spring, which belongs to the technical field of spring processing and comprises a base, the top end of the base is connected with a sliding support in a relatively sliding manner, the top end of the sliding support is fixedly connected with an adapter ring, the inner side of the adapter ring is rotatably connected with a support sleeve, and the surface of the support sleeve is fixedly connected with a toothed ring. A bidirectional screw is rotationally connected to the inner side of the supporting sleeve, an expansion assembly is arranged on the surface of the bidirectional screw, and an L-shaped mounting frame is fixedly connected to the end, close to the expansion assembly, of the top end of the base. Through the arrangement of the pushing air cylinder, the expansion assembly, the driving motor, the gear ring and the supporting sleeve, the function of manufacturing springs with different thicknesses can be achieved without replacing a steel column while the function of winding a steel wire into the spring is achieved, convenience is provided for spring manufacturing, and meanwhile the workload of machining personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing, in particular to a device for increasing the initial tension of a coil spring. Background Art

[0002] Influenced by the compact product structure design concept and space limitations, under the premise of specified spring stiffness, springs with larger initial tension are generally selected.

[0003] Existing springs with large initial tension generally fix one end of a heated steel wire on one end of a steel column, and stretch the steel wire into a desired spring shape by rotating the steel column forward. However, the thickness of the existing steel column is generally fixed. When springs of different thicknesses are required, it is necessary to replace the corresponding steel column. Since the steel column is generally heavy, it is troublesome to replace it, which increases the workload of the processing personnel. Therefore, a device for increasing the initial tension of the coil spring is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the thickness of the existing steel column in the prior art is generally fixed. When springs of different thicknesses are needed, it is necessary to replace the appropriate steel column. Since the steel column is generally heavy, it is troublesome to replace it, which increases the workload of the processing personnel. A device for increasing the initial tension of the coil spring is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for increasing the initial tension of a coil spring comprises a base, the top of the base is relatively slidably connected to a sliding support bracket, the top of the sliding support bracket is fixedly connected to an adapter ring, the inner side of the adapter ring is rotatably connected to a support sleeve, the surface of the support sleeve is fixedly connected to a gear ring, the inner side of the support sleeve is rotatably connected to a bidirectional screw, the surface of the bidirectional screw is provided with an extension component, the top of the base is fixedly connected to an L-shaped mounting frame at one end close to the extension component, the top of the L-shaped mounting frame is installed with a lifting cylinder, and the output end of the lifting cylinder is installed with a limiting roller.

[0007] Preferably, the expansion assembly includes a threaded ring threadedly connected to the surface of the bidirectional screw, a transmission rod rotatably connected to the surface of the threaded ring, and an arc plate rotatably connected to one end of the transmission rod.

[0008] Preferably, the threaded rings are arranged relatively to each other, and the transmission rod and the arc-shaped plate are evenly distributed around the circumference.

[0009] Preferably, a plurality of circumferentially distributed limiting rods are fixedly connected to an end surface of one end of the threaded ring, and a plurality of telescopic grooves slidably connected to the limiting rods are formed on an end surface of one end of the support sleeve.

[0010] Preferably, an L-shaped support plate is fixedly connected to the surface of one of the arc-shaped plates, a threaded rod is threadedly connected to the top end of the L-shaped support plate, and a clamping plate for clamping one end of the fixed steel wire is rotatably connected to the bottom end of the threaded rod.

[0011] Preferably, a driving motor is installed on the side wall of the sliding support bracket, and an output end of the driving motor is fixedly connected to a driving gear meshing with a gear ring, and one end of the bidirectional screw is fixedly connected to a handle.

[0012] Preferably, a pushing cylinder is installed on the top of the base, and the output end of the pushing cylinder is fixedly connected to the sliding support bracket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a push cylinder, an expansion component, a driving motor, a gear ring and a supporting sleeve. The driving motor drives the driving gear to rotate, thereby driving the gear ring to rotate, and the gear ring drives the supporting sleeve to rotate, thereby driving the expansion component to rotate. At the same time, the push cylinder drives the expansion component to move, thereby realizing the function of stretching and winding the steel wire into a spring.

[0015] The bidirectional screw is driven to rotate by the handle so that the threaded rings on both sides move toward each other. With the cooperation of the transmission rod, the spacing between adjacent arc plates is controlled, making it easy to stretch and wind the steel wire into springs of different thicknesses without replacing the steel column, which provides convenience for the production of springs and reduces the workload of processing personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a device for increasing the initial tension of a coil spring proposed by the utility model;

[0017] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 for Figure 1 The enlarged structural diagram at C in the middle;

[0019] Figure 4 This is an assembly diagram of an expansion component in a device for increasing the initial tension of a coil spring proposed by the utility model;

[0020] Figure 5 for Figure 4 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. base; 2. sliding support bracket; 3. L-shaped mounting bracket; 4. arc plate; 5. bidirectional screw; 6. pushing cylinder; 7. lifting cylinder; 8. limiting roller; 9. clamping plate; 10. L-shaped support plate; 11. supporting sleeve; 1101, telescopic slot; 12. limiting rod; 13. gear ring; 14. transmission rod; 15. threaded ring; 16. adapter ring; 17. driving gear; 18. handle; 19. driving motor; 20. threaded rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-5 A device for increasing the initial tension of a coil spring comprises a base 1, a sliding support bracket 2 is relatively slidably connected to the top of the base 1, an adapter ring 16 is fixedly connected to the top of the sliding support bracket 2, a support sleeve 11 is rotatably connected to the inner side of the adapter ring 16, a gear ring 13 is fixedly connected to the surface of the support sleeve 11, a bidirectional screw 5 is rotatably connected to the inner side of the support sleeve 11, an expansion component is arranged on the surface of the bidirectional screw 5, a driving motor 19 is installed on the side wall of the sliding support bracket 2, a driving gear 17 meshing with the gear ring 13 is fixedly connected to the output end of the driving motor 19, a handle 18 is fixedly connected to one end of the bidirectional screw 5, a pushing cylinder 6 is installed on the top of the base 1, and the output end of the pushing cylinder 6 is fixedly connected to the sliding support bracket 2.

[0024] It should be noted that: the drive motor 19 is turned on, and the drive motor 19 drives the drive gear 17 to rotate, which in turn drives the gear ring 13 to rotate, and the gear ring 13 drives the support sleeve 11 to rotate, and then drives the entire extension component to rotate through the limit rod 12, thereby realizing the stretching and winding function of the steel wire, and at the same time pushes the cylinder 6 to push the sliding support bracket 2 to move, thereby driving the entire extension component to move, so that the extension component can wind the steel wire into a spring structure.

[0025] An L-shaped mounting frame 3 is fixedly connected to one end of the top of the base 1 near the extension assembly, a lifting cylinder 7 is installed on the top of the L-shaped mounting frame 3, and a limited roller shaft 8 is installed on the output end of the lifting cylinder 7;

[0026] It should be noted that the limiting roller 8 can realize the limiting function of the steel wire, so that the steel wire can be closely attached to the surface of the arc plate 4 during the winding process.

[0027] The extension component includes a threaded ring 15 threadedly connected to the surface of the bidirectional screw 5, a transmission rod 14 rotatably connected to the surface of the threaded ring 15, and an arc plate 4 rotatably connected to one end of the transmission rod 14. The threaded rings 15 are arranged relatively to each other, and the transmission rod 14 and the arc plate 4 are evenly distributed around the circumference. A plurality of circumferentially distributed limiting rods 12 are fixedly connected to the end surface of one end of the threaded ring 15, and a plurality of telescopic grooves 1101 slidably connected to the limiting rods 12 are opened on the end surface of one end of the support sleeve 11.

[0028] It should be noted that: the handle 18 drives the bidirectional screw 5 to rotate, so that the threaded rings 15 on both sides move toward each other, and then drives one end of the transmission rod 14 to rotate, so that the other end of the transmission rod 14 drives the arc plate 4 to move, and adjusts the distance between adjacent arc plates 4, so as to facilitate winding the steel wire into springs of different thicknesses.

[0029] An L-shaped support plate 10 is fixedly connected to the surface of one of the arc-shaped plates 4, a threaded rod 20 is threadedly connected to the top of the L-shaped support plate 10, and a clamping plate 9 for clamping one end of a fixed steel wire is rotatably connected to the bottom end of the threaded rod 20;

[0030] It should be noted that: by rotating the threaded rod 20 to drive the clamping plate 9 to move downward, one end of the steel wire can be clamped and fixed, so that the expansion component can realize the winding function of the steel wire.

[0031] The driving motor 19 is of prior art, and its model is JB5274-91. It can realize the function of driving the driving gear 17 to rotate, and will not be described in detail here.

[0032] The push cylinder 6 is a prior art, and its model is SCJ50X100-50-S-FA. It can realize the function of driving the sliding support 2 to move, and will not be described in detail here.

[0033] The lifting cylinder 7 is a prior art, and its model is CJ2X. It can realize the function of driving the limiting roller 8 to rise and fall, and will not be described in detail here.

[0034] When the utility model is used, one end of the steel wire to be processed is placed on the clamping plate 9, and the threaded rod 20 is rotated to drive the clamping plate 9 to move downward to achieve the clamping and fixing of one end of the steel wire, and then the driving motor 19 is turned on, and the driving motor 19 drives the driving gear 17 to rotate, and then drives the gear ring 13 to rotate, and the gear ring 13 drives the supporting sleeve 11 to rotate, and then drives the threaded ring 15 to rotate through the limiting rod 12, and the threaded ring 15 drives the arc plates 4 at various locations to make circular motion through the transmission rod 14, so as to achieve the winding function of the steel wire, and at the same time, the lifting cylinder 7 is turned on, and the lifting cylinder 7 drives the limiting roller 8 to move downward to ensure that the steel wire can be close to the surface of the arc plate 4 during the winding process;

[0035] When springs of different thicknesses need to be made, the handle 18 is turned, and the handle 18 drives the bidirectional screw 5 to rotate, thereby causing the threaded rings 15 on both sides to move toward each other, thereby driving one end of the transmission rod 14 to rotate, so that the other end of the transmission rod 14 drives the arc plate 4 to move, and adjusts the distance between adjacent arc plates 4 so that the cylindrical structure composed of the arc plates 4 adapts to the inner diameter of the required spring, thereby eliminating the need to replace the steel column, providing convenience for the production of the spring and reducing the workload of the processing personnel.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for increasing the initial tension of a coil spring, comprising a base (1), characterized in that: The top of the base (1) is relatively slidably connected to a sliding support bracket (2), the top of the sliding support bracket (2) is fixedly connected to an adapter ring (16), the inner side of the adapter ring (16) is rotatably connected to a support sleeve (11), the surface of the support sleeve (11) is fixedly connected to a gear ring (13), the inner side of the support sleeve (11) is rotatably connected to a bidirectional screw (5), the surface of the bidirectional screw (5) is provided with an extension component, the top of the base (1) is fixedly connected to an L-shaped mounting frame (3) at one end close to the extension component, the top of the L-shaped mounting frame (3) is installed with a lifting cylinder (7), and the output end of the lifting cylinder (7) is installed with a limiting roller (8).

2. A device for increasing the initial tension of a coil spring according to claim 1, characterized in that: The expansion assembly comprises a threaded ring (15) threadedly connected to the surface of a bidirectional screw (5), a transmission rod (14) rotatably connected to the surface of the threaded ring (15), and an arc plate (4) rotatably connected to one end of the transmission rod (14).

3. A device for increasing the initial tension of a coil spring according to claim 2, characterized in that: The threaded rings (15) are arranged opposite to each other, and the transmission rods (14) and the arc-shaped plates (4) are evenly distributed around the circumference.

4. A device for increasing the initial tension of a coil spring according to claim 2, characterized in that: One end surface of the threaded ring (15) is fixedly connected to a plurality of circumferentially distributed limiting rods (12), and one end surface of the support sleeve (11) is provided with a plurality of telescopic grooves (1101) slidably connected to the limiting rods (12).

5. The device for increasing the initial tension of a coil spring according to claim 2, characterized in that: An L-shaped support plate (10) is fixedly connected to the surface of one of the arc-shaped plates (4), a threaded rod (20) is threadedly connected to the top end of the L-shaped support plate (10), and a clamping plate (9) for clamping and fixing one end of a steel wire is rotatably connected to the bottom end of the threaded rod (20).

6. The device for increasing the initial tension of a coil spring according to claim 1, characterized in that: A driving motor (19) is installed on the side wall of the sliding support bracket (2), and the output end of the driving motor (19) is fixedly connected to a driving gear (17) meshing with the gear ring (13), and one end of the bidirectional screw (5) is fixedly connected to a handle (18).

7. The device for increasing the initial tension of a coil spring according to claim 1, characterized in that: A pushing cylinder (6) is installed at the top of the base (1), and the output end of the pushing cylinder (6) is fixedly connected to the sliding support bracket (2).

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