Manual coil forming die

Abstract

According to the manual coil forming die, a fixing device comprises a fixing plate, a fixing seat and a fixing pipe, and a steel wire fixing hole is machined in the eccentric position of the fixing seat; the front end of the fixing plate is clamped by a vice jaw, and the rear end face of the fixing plate is fixed to the center of the front end face of the fixing base. The center of the rear end face of the fixing base is fixed to the front end face of a fixing pipe, and the fixing pipe is sleeved with a rotating device. The rotating device comprises a rotating pipe, a rotating handle and a stop pin, and the periphery of the fixed pipe is sleeved with the rotating pipe; the fixed end of the rotating handle is fixed to the outer wall of the rotating pipe, a stop pin mounting hole is machined in the lower section of the rotating handle, and the stop pin penetrates into the stop pin mounting hole, is fixedly welded to the rotating handle and is used for stopping the steel wire. The coil forming device is simple in structure and convenient to operate, products with different radiuses can be obtained by adopting manual coil forming and using moulds with different radiuses, manual bending and clamping device fixing are achieved, the production period is short, and the coil forming device can adapt to machining of small-batch and multi-variety products.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical stamping technical field, concretely relates to a manual coil forming die for sheet metal blanking. BACKGROUND

[0002] Spring product is the mechanical part that steel wire is rotated and bent into different size radius, utilizes elasticity to work. Using coil forming die, utilizing spring forming principle, according to different purposes, different diameter open circle pad, round spiral spring can be made. 70-E-YB steel is suitable for manufacturing open circle pad, round spiral spring on the general machine of section not big, and strength requirement not high. But for small diameter 70-E-YB spring, there is the problem of manual forming difficulty, therefore need to design a kind of manual coil forming die to complete the manual forming of small diameter 70-E-YB material spring. UTILITY MODEL CONTENTS

[0003] (One) technical problem to be solved

[0004] The utility model provides a kind of manual coil forming die to solve how to complete the technical problem of small diameter 70-E-YB material spring manual forming.

[0005] (Two) technical scheme

[0006] In order to solve the above technical problem, the utility model provides a kind of manual coil forming die, the manual coil forming die includes fixed device and rotating device;Wherein,

[0007] Fixed device includes fixed plate, fixed seat and fixed tube;Wherein, fixed plate is rectangular plate, fixed seat is circular plate, and steel wire fixing hole is processed in eccentric position on fixed seat;The front end of fixed plate is tightened by vise jaw, and the rear end surface of fixed plate and the front end surface center position of fixed seat are welded and fixed;The rear end surface center position of fixed seat and the front end surface of fixed tube are welded and fixed, and fixed tube is used to be sleeved by rotating device;

[0008] Rotating device includes rotating tube, rotating handle and stop pin;Wherein, rotating tube is sleeved on the outer periphery of fixed tube;The fixed end of rotating handle is welded and fixed on the outer wall of rotating tube, and the lower segment of rotating handle is processed with stop pin mounting hole, stop pin is inserted into stop pin mounting hole and is welded and fixed with rotating handle, and is used to stop steel wire.

[0009] Further, the fixed plate is rectangular plate with the outer dimension of 80mm x 45mm x 4mm.

[0010] Further, the fixed seat is circular plate with the diameter of 100mm and the thickness of 18mm.

[0011] Further, a steel wire fixing hole with a diameter of 3.5 mm is processed at an eccentric position on the fixing base, and the steel wire fixing hole is located at R22 mm from the center of the fixing base.

[0012] Further, the fixing tube is a steel tube with an outer diameter of 28 mm and a length of 180 mm.

[0013] Further, the rotating tube is a steel tube with an outer diameter of 36 mm, an inner diameter of 30 mm and a length of 65 mm.

[0014] Further, the rotating handle is a steel tube with a diameter of 20 mm and a length of 180 mm.

[0015] Further, the axis of the rotating handle is 30 mm away from the rear end surface of the fixing base, and a blocking pin mounting hole with a diameter of 6.3 mm is processed on the lower section of the rotating handle.

[0016] Further, the center of the blocking pin mounting hole is 6 mm away from the fixed end of the rotating handle.

[0017] Further, the blocking pin is a steel rod with a diameter of 6 mm and a length of 45 mm, and the end of the blocking pin towards the fixing base protrudes from the rotating handle by 15 mm.

[0018] (Three) beneficial effects

[0019] The utility model provides a kind of manual coil forming die, including fixing device and rotating device, fixing device includes fixed plate, fixing base and fixing tube, fixed plate is rectangular plate, fixing base is circular plate, and steel wire fixing hole is processed at eccentric position on fixing base;The front end of fixed plate is tightened by vise jaw, and the rear end surface of fixed plate and the center position of the front end surface of fixing base are welded and fixed;The center position of the rear end surface of fixing base and the front end surface of fixing tube are welded and fixed, and fixing tube is used to be packaged by rotating device;Rotating device includes rotating tube, rotating handle and blocking pin, and rotating tube is sleeved on the outer periphery of fixing tube;The fixed end of rotating handle is welded and fixed on the outer wall of rotating tube, blocking pin mounting hole is processed on the lower section of rotating handle, blocking pin is inserted into blocking pin mounting hole and is welded and fixed with rotating handle, and is used to stop steel wire.The utility model structure is simple, easy to operate, adopts manual coil forming, and different radius mould can obtain the product of different radius, and this kind of forming die can bend different specifications of steel wire, manually bends, clamps and fixes, and obtains the product meeting drawing size by wire cutting machine, and production cycle is short, and it can adapt to small batch multi-specification product processing. DRAWINGS

[0020] Fig. 1 It is the front view of the utility model's manual coil forming die;

[0021] Fig. 2 It is the side view of the utility model's manual coil forming die;

[0022] Fig. 3 This is a schematic diagram of the fixing device structure in this utility model;

[0023] Fig. 4 This is a schematic diagram of the rotating device structure in this utility model;

[0024] Fig. 5 This is a schematic diagram of the operation of the manual coil forming mold of this utility model;

[0025] Fig. 6 This is a schematic diagram of the open circular pad structure in this utility model. Detailed Implementation

[0026] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0027] This embodiment proposes a manual coil forming mold, such as Figs. 1-2 As shown, it mainly consists of two parts: a fixing device and a rotating device.

[0028] like Fig. 3 As shown, the fixing device includes a fixing plate 1, a fixing base 2, and a fixing tube 3. The fixing plate 1 is a rectangular plate with dimensions of 80mm × 45mm × 4mm. The fixing base 2 is a circular plate with a diameter of 100mm and a thickness of 18mm. A Φ3.5mm wire fixing hole is machined at an eccentric position on the fixing base 2, located at an R22mm radius from the center of the fixing base 2. The front end of the fixing plate 1 is clamped by a vise jaw, and the rear end face of the fixing plate 1 is welded to the center of the front end face of the fixing base 2. The center of the rear end face of the fixing base 2 is welded to the front end face of the fixing tube 3. The fixing tube 3 is a steel pipe with an outer diameter of 28mm and a length of 180mm, used to mount the rotating device.

[0029] like Fig. 4 As shown, the rotating device includes a rotating tube 4, a rotating handle 5, and a stop pin 6. The rotating tube 4 is a steel tube with an outer diameter of 36mm, an inner diameter of 30mm, and a length of 65mm, and is fitted around the outer circumference of the fixed tube 3. The rotating handle 5 is a steel tube with a diameter of 20mm and a length of 180mm. The fixed end of the rotating handle 5 is welded and fixed to the outer wall of the rotating tube 4, and the distance between the axis of the rotating handle 5 and the rear end face of the fixed seat 2 is 30mm. The lower section of the rotating handle 5 has a stop pin mounting hole with a diameter of 6.3mm, and the distance between the center of the stop pin mounting hole and the fixed end of the rotating handle 5 is 6mm. The stop pin 6 is a steel rod with a diameter of 6mm and a length of 45mm. The stop pin 6 passes through the stop pin mounting hole and is welded and fixed to the rotating handle 5. The end of the stop pin 6 facing the fixed seat 2 protrudes 15mm beyond the rotating handle 5, and is used to stop the Φ3mm steel wire 7.

[0030] Φ3mm steel wire 7 is the raw material for processing open round pads. During manual coil forming, such as... Fig. 5 As shown, a Φ3mm steel wire 7 is pre-bent and inserted into the wire fixing hole on the fixing base 2. One end of the Φ3mm steel wire 7 is positioned between the rotating tube 4 and the stop pin 6. By rotating the rotating handle 5, the stop pin 6 moves in a circular motion around the fixing tube 3 and applies force to the Φ3mm steel wire 7, causing the Φ3mm steel wire 7 to be compressed and move in a circular motion around the rotating tube 4. As the Φ3mm steel wire 7 rotates, it forms a radial circular motion around the rotating tube 4 while simultaneously spiraling upwards axially along the rotating tube 4. Finally, the Φ3mm steel wire 7 is compressed into a coil shape, resulting in a coil-shaped product. The coil-shaped product can be cut using a wire cutting machine to obtain an open circular pad, such as... Fig. 6 As shown. 70-E-YB steel has low strength, high controllability, good formability, low resilience, and can meet the opening size requirements after cutting.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hand coil forming mold characterized by, The manual coil forming die comprises a fixing device and a rotating device; wherein The fixing device comprises a fixing plate, a fixing base and a fixing tube; wherein the fixing plate is a rectangular plate, the fixing base is a circular plate, and a steel wire fixing hole is processed at an eccentric position on the fixing base; the front end of the fixing plate is clamped by a vice jaw, and the rear end surface of the fixing plate is welded and fixed with the front end surface of the fixing base at the center position; the rear end surface of the fixing base at the center position is welded and fixed with the front end surface of the fixing tube, and the fixing tube is used for being sleeved by the rotating device; The rotating device comprises a rotating tube, a rotating handle and a blocking pin; wherein the rotating tube is sleeved on the outer periphery of the fixing tube; the fixed end of the rotating handle is welded and fixed on the outer wall of the rotating tube, the lower segment of the rotating handle is processed with a blocking pin mounting hole, the blocking pin is inserted into the blocking pin mounting hole and is welded and fixed with the rotating handle, and is used for blocking the steel wire.

2. The hand coil forming mold of claim 1, wherein, The fixing plate is a rectangular plate with an outer dimension of 80mmx45mmx4mm.

3. The hand coil forming mold of claim 1, wherein, The fixing base is a circular plate with a diameter of 100mm and a thickness of 18mm.

4. The hand coil forming mold of claim 1, wherein, A steel wire fixing hole with a diameter of 3.5mm is processed at an eccentric position on the fixing base, and the steel wire fixing hole is located at R22mm from the center of the fixing base.

5. The hand coil forming mold of claim 1, wherein, The fixing tube is a steel tube with an outer diameter of 28mm and a length of 180mm.

6. The hand coil forming mold of claim 1, wherein, The rotating tube is a steel tube with an outer diameter of 36mm, an inner diameter of 30mm and a length of 65mm.

7. The hand coil forming mold of claim 1, wherein, The rotating handle is a steel tube with a diameter of 20mm and a length of 180mm.

8. The hand coil forming mold of claim 1, wherein, The distance between the axis of the rotating handle and the rear end surface of the fixing base is 30mm; the lower segment of the rotating handle is processed with a blocking pin mounting hole with a diameter of 6.3mm.

9. The hand coil forming mold of claim 1, wherein, The distance between the center of the blocking pin mounting hole and the fixed end of the rotating handle is 6mm.

10. The hand coil forming mold of claim 1, wherein, The blocking pin is a steel rod with a diameter of 6mm and a length of 45mm; the end of the blocking pin towards the fixing base protrudes from the rotating handle by a length of 15mm.

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