Spiral extension spring forming device

Abstract

The utility model discloses a spiral extension spring forming device and belongs to the technical field of spring equipment. The adjusting assembly is arranged, and springs with different screw pitches are machined through the change of the angles of the pressing rollers in the multiple sets of pressing roller mechanisms in the adjusting assembly; the rotating base capable of driving the pressing roller to rotate is arranged and matched with the hydraulic cylinder to downwards press the pressing wheel, and the driving motor is used for driving the pressing roller to change the angle, so that the rolling-out angle of a spring material is changed, and springs with different screw pitches are machined.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring equipment, and in particular relates to a spiral stretch spring forming device. Background Art

[0002] The main tooling for hot coil spring rolling includes a mandrel, a chuck, a chuck seat, and a clamping jaw. The hot coil spring rolling process is: one end of the heated spring material is placed at the front end of the clamping jaw and placed on the cylindrical surface of the protruding platform in the center of the chuck. The clamping jaw clamps the spring material on the protruding platform of the chuck. The chuck and the mandrel rotate synchronously, and the spring material is wound onto the mandrel through the mold to form a spring shape.

[0003] Different types of coil springs have different pitches, so the moving speed of the mold when winding the spring material around the core shaft is different. In addition, due to the different structures at both ends and the middle section of the coil spring, the winding speed needs to be adjusted during winding. The control method used in the past is to use a cam controller to control the speed and rotation direction for spring winding. This control method requires the cam controller to be replaced when processing springs of different specifications, so the process is more cumbersome. Summary of the invention

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a spiral tension spring forming device.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: a spiral tension spring forming device, comprising a central roller and an adjustment component, the adjustment component is arranged around the central roller, the adjustment component comprises a sliding frame, a plurality of slideways are arranged on the sliding frame, each of the slideways is provided with a group of pressure roller mechanisms, each group of the pressure roller mechanisms comprises a sliding plate, a driving motor and a driven sprocket are respectively provided on the sliding plate, the driven sprocket is rotatably connected with the sliding plate, a driving sprocket is provided on the driving shaft of the driving motor, the driving sprocket is fixedly connected with the driving shaft of the driving motor, a transmission chain is connected between the driving sprocket and the driven sprocket, a mounting seat is provided on the upper surface of the sliding plate corresponding to the driven sprocket, a hydraulic cylinder is provided on the mounting seat, a rotating seat is provided on the lower side corresponding to the driven sprocket, a sliding shaft is provided on the top of the rotating seat, the sliding shaft is slidably connected with the driven sprocket up and down, a coupling is connected between the protruding end of the hydraulic cylinder and the sliding shaft of the rotating seat, and a pressure roller is provided in the rotating seat.

[0006] Preferably, the plurality of groups of pressing roller mechanisms are arranged at intervals from each other.

[0007] Preferably, a slot for inserting a pressure roller is provided at the lower end of the rotating seat.

[0008] Preferably, the slot is provided with a pin for limiting the pressure roller from falling.

[0009] The utility model has the beneficial effects of: by setting an adjustment component, utilizing the change of the angle of the pressure rollers in the multiple pressure roller mechanisms in the adjustment component, the processing of springs with different pitches can be realized; by setting a rotating seat that can drive the pressure roller to rotate, cooperating with the hydraulic cylinder to press the pressure wheel down, and utilizing the driving motor to drive the pressure roller to change the angle, thereby changing the winding angle of the spring material, the processing of springs with different pitches can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 This is a structural schematic diagram of the pressing roller mechanism of the utility model;

[0012] Figure 3 It is a structural schematic diagram of the bottom of the pressing roller mechanism of the utility model.

[0013] In the figure: 1, center roller; 2, sliding frame; 3, slideway; 4, sliding plate; 5, driving motor; 6, driven sprocket; 7, driving sprocket; 8, transmission chain; 9, mounting seat; 10, hydraulic cylinder; 11, rotating seat; 12, sliding shaft; 13, coupling; 14, pressure roller; 15, slot; 16, pin shaft. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0015] Embodiment: A spiral tension spring forming device, such as Figure 1-Figure 3As shown, it includes a central roller 1 and an adjustment component, the adjustment component is arranged around the central roller 1, the adjustment component includes a sliding frame 2, the sliding frame 2 is provided with a plurality of slideways 3, each of the slideways 3 is provided with a group of roller mechanisms, each group of the roller mechanisms includes a sliding plate 4, the sliding plate 4 is respectively provided with a driving motor 5 and a driven sprocket 6, the driven sprocket 6 is rotatably connected to the sliding plate 4, the driving shaft of the driving motor 5 is provided with a driving sprocket 7, the driving sprocket 7 is fixed to the driving shaft of the driving motor 5 A transmission chain 8 is connected between the driving sprocket 7 and the driven sprocket 6, a mounting seat 9 is provided on the upper surface of the sliding plate 4 corresponding to the driven sprocket 6, a hydraulic cylinder 10 is provided on the mounting seat 9, a rotating seat 11 is provided on the lower side corresponding to the driven sprocket 6, a sliding shaft 12 is provided on the top of the rotating seat 11, the sliding shaft 12 is connected to the driven sprocket 6 for vertical sliding connection, a coupling 13 is connected between the protruding end of the hydraulic cylinder 10 and the sliding shaft 12 of the rotating seat 11, and a pressure roller 14 is mounted in the rotating seat 11.

[0016] A plurality of groups of the pressing roller mechanisms are arranged at intervals from each other; a slot 15 for inserting the pressing roller 14 is provided at the lower end of the rotating seat 11; and a pin 16 for limiting the pressing roller 14 from falling is provided on the slot 15.

[0017] The principle of the utility model is as follows: when making the spring, a program is pre-set to use the driving motor 5 to drive the rotating seat 11 to rotate, so that the pressure roller 14 rotates to the required angle, and the spring material extends from the front side to the uppermost pressure roller 14 between the pressure roller 14 and the central roller 1, and the corresponding hydraulic cylinder 10 is used to press the spring material onto the surface of the central roller 1, and the spring material continues to extend through the guidance of the pressure roller 14. The subsequent pressure roller mechanisms all press the spring material onto the surface of the central roller 1 through the hydraulic cylinder 10, and the spring material is guided by the pressure roller 14 in each group of pressure roller mechanisms to complete the processing of the spring. When springs with different pitches need to be processed, the driving motor 5 is used to adjust the angle of the pressure roller 14 to realize the processing of springs with different pitches.

[0018] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A spiral tension spring forming device, comprising a central roller (1) and an adjustment assembly, wherein the adjustment assembly is arranged around the central roller (1), characterized in that: The adjustment assembly comprises a sliding frame (2), a plurality of slideways (3) are arranged on the sliding frame (2), each of the slideways (3) is provided with a group of roller mechanisms, each group of the roller mechanisms comprises a sliding plate (4), a driving motor (5) and a driven sprocket (6) are respectively arranged on the sliding plate (4), the driven sprocket (6) is rotatably connected to the sliding plate (4), a driving sprocket (7) is arranged on the driving shaft of the driving motor (5), the driving sprocket (7) is fixedly connected to the driving shaft of the driving motor (5), and a contact is formed between the driving sprocket (7) and the driven sprocket (6). A transmission chain (8) is connected, a mounting seat (9) is provided on the upper surface of the sliding plate (4) corresponding to the driven sprocket (6), a hydraulic cylinder (10) is provided on the mounting seat (9), a rotating seat (11) is provided on the lower side corresponding to the driven sprocket (6), a sliding shaft (12) is provided on the top of the rotating seat (11), the sliding shaft (12) is connected to the driven sprocket (6) in an up-and-down sliding manner, a coupling (13) is connected between the protruding end of the hydraulic cylinder (10) and the sliding shaft (12) of the rotating seat (11), and a pressure roller (14) is mounted in the rotating seat (11).

2. The helical tension spring forming device according to claim 1, characterized in that: The plurality of groups of pressing roller mechanisms are arranged at intervals from each other.

3. The helical tension spring forming device according to claim 1, characterized in that: The lower end of the rotating seat (11) is provided with a slot (15) for inserting a pressure roller (14).

4. The helical tension spring forming device according to claim 3, characterized in that: The slot (15) is provided with a pin shaft (16) for limiting the pressure roller (14) from falling.

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