Automatic coil spring stretching forming machine

Abstract

The utility model discloses an automatic coil spring stretching forming machine which comprises a base table, a steel belt pressing mechanism, a steering wheel, a first elastic finishing mechanism, a steel belt traction mechanism and a mold forming cutting mechanism, and the steel belt pressing mechanism, the steering wheel, the first elastic finishing mechanism and the steel belt traction mechanism are arranged on the base table. The first elastic finishing mechanism comprises a transverse air cylinder, a first wheel carrier, a first abutting wheel, a second abutting wheel and a steering fixed shaft, the first wheel carrier is connected with the first air cylinder, and the first abutting wheel and the second abutting wheel are arranged on the first wheel carrier and used for being matched with the steering fixed shaft to apply stress to the steel belt. Compared with the prior art, the coil spring produced by the utility model has the advantage of stable elasticity.

Description

Technical Field

[0001] The utility model relates to the technical field of coil spring processing, in particular to an automatic coil spring stretching forming machine. Background Art

[0002] At present, the coil spring forming manufacturing process basically adopts the extrusion forming process. The biggest feature of this process is that the coil spring is easy to deform, resulting in unstable elastic force, and the output elastic force of the coil spring cannot guarantee the quality. As people's requirements for the elastic force of the coil spring increase, this patent solves the product shortcomings in the manufacturing process of the coil spring. In view of this, an automatic coil spring stretching forming machine is specially proposed. Utility Model Content

[0003] The utility model aims to provide an automatic coil spring stretching and forming machine, the coil spring produced by the utility model has the advantage of stable elastic force.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] An automatic coil spring stretching and forming machine comprises a base and a steel belt clamping mechanism, a steering wheel, a first elastic trimming mechanism, a steel belt traction mechanism and a mold forming and cutting mechanism arranged on the base. The connecting line of the steel belt clamping mechanism, the steering wheel, the first elastic trimming mechanism and the steel belt traction mechanism constitutes a Z-shaped broken line structure. The first elastic trimming mechanism comprises a first wheel frame, a first top wheel, a second top wheel and a steering fixed shaft. The first top wheel and the second top wheel are arranged on the first wheel frame and are used to cooperate with the steering fixed shaft to apply stress to the steel belt.

[0006] In a preferred embodiment, the steel belt clamping mechanism includes a supporting platform, a pressing block, a pressing support frame and a pressing cylinder, the pressing support frame is arranged on the base, the pressing cylinder is arranged on the pressing support frame, the pressing block is connected to the pressing cylinder and is driven by the pressing cylinder to move up and down, and the supporting platform is arranged below the pressing block.

[0007] In a preferred embodiment, it also includes a second elastic trimming mechanism arranged on the base, the second elastic trimming mechanism includes a first trimming roller, a second trimming roller and a third trimming roller, the first trimming roller is located above the common plane where the second trimming roller and the third trimming roller are located, and is used to cooperate with the second trimming roller and the third trimming roller to trim the stress of the steel strip.

[0008] In a preferred embodiment, the steel strip traction mechanism includes a driving wheel, a driving motor, a pressure bearing and a first longitudinal cylinder. The driving wheel is connected to the driving motor. The pressure bearing is arranged above the driving wheel and is used to cooperate with the driving wheel to realize traction of the steel strip. The first longitudinal cylinder is connected to the pressure bearing and is used to drive the pressure bearing to move up and down.

[0009] In a preferred embodiment, the steel belt traction mechanism further includes a bearing frame, the press bearing is arranged on the bearing frame, and the first longitudinal cylinder is connected to the bearing frame.

[0010] In a preferred embodiment, the mold forming and cutting mechanism includes a second longitudinal cylinder, a cutter and a cutting platform, the second longitudinal cylinder is connected to the cutter to drive the cutter to move up and down, and the cutting platform is arranged below the cutter.

[0011] In a preferred embodiment, the cutter has a specific blade shape.

[0012] In a preferred embodiment, it also includes a third elastic trimming mechanism arranged on the base, the third elastic trimming mechanism includes a third longitudinal cylinder, a fourth trimming roller, a fifth trimming roller and a sixth trimming roller, the third longitudinal cylinder is connected to the fourth trimming roller, and is used to drive the fourth trimming roller to move up and down, the fourth trimming roller is located above the common plane where the fifth trimming roller and the sixth trimming roller are located, and is used to cooperate with the fifth trimming roller and the sixth trimming roller to adjust the stress of the steel strip.

[0013] Compared with the prior art, the utility model provides an automatic spring stretching forming machine, which has the following advantages:

[0014] 1. It adopts the bending and stretching forming process for the steel strip, so that the steel strip forms a specified curvature radius after being bent and stretched by external force, and has good non-deformable characteristics.

[0015] 2. It solves the problem of controlling the deformation amount and the bending radius of the coil spring during the stretching forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of an automatic coil spring stretching and forming machine.

[0017] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0018] In the picture

[0019] Base 1; steering wheel 2; first wheel frame 31; first top wheel 32; second top wheel 33; steering fixed axis 34; support platform 41; pressing block 42; pressing support frame 43; pressing cylinder 44; first trimming roller 51; second trimming roller 52; third trimming roller 53; driving wheel 61; pressing bearing 62; first longitudinal cylinder 63; bearing frame 64; second longitudinal cylinder 71; cutter 72; cutting platform 73; third longitudinal cylinder 81; fourth trimming roller 82; fifth trimming roller 83; sixth trimming roller 84. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] like Figure 1 and Figure 2 As shown, an automatic coil spring stretching forming machine includes a base 1 and a steel belt clamping mechanism, a steering wheel 2, a first elastic trimming mechanism, a steel belt traction mechanism and a mold forming and cutting mechanism arranged on the base 1. The connecting line of the steel belt clamping mechanism, the steering wheel 2, the first elastic trimming mechanism and the steel belt traction mechanism constitutes a Z-shaped broken line structure. The first elastic trimming mechanism includes a first wheel frame 31, a first top wheel 32, a second top wheel 33 and a steering fixed shaft 34. The first top wheel 32 and the second top wheel 33 are arranged on the first wheel frame 31, and are used to cooperate with the steering fixed shaft 34 to apply stress to the steel belt.

[0023] Specifically, during processing, the steel belt is first input through the steel belt clamping mechanism, which applies pressure to the steel belt to generate tension on the steel belt, and then passes through the steering wheel 2 and the first elastic repair structure to reach the steel belt traction mechanism. Through this path setting, the steel belt produces curling elastic deformation. At the same time, the friction between the first abutting wheel 32 and the second abutting wheel 33 is used to apply stress to one side surface of the steel belt, so that the steel belt produces more specific surface stress.

[0024] To be more specific, the steel belt clamping mechanism includes a support platform 41, a pressing block 42, a pressing support frame 43 and a pressing cylinder 44. The pressing support frame 43 is arranged on the base 1, and the pressing cylinder 44 is arranged on the pressing support frame 43. The pressing block 42 is connected to the pressing cylinder 44 and is driven by the pressing cylinder 44 to move up and down. The support platform 41 is arranged below the pressing block 42. Through the action of the pressing cylinder 44, the gap between the pressing block 42 and the support platform 41 is adjusted, thereby realizing the adjustment of the steel belt pressure.

[0025] In order to further achieve stress adjustment of the steel strip, an automatic spring stretching forming machine in this embodiment also includes a second elastic force trimming mechanism arranged on the base 1, and the second elastic force trimming mechanism includes a first trimming roller 51, a second trimming roller 52 and a third trimming roller 53. The first trimming roller 51 is located above the common plane where the second trimming roller 52 and the third trimming roller 53 are located, and is used to cooperate with the second trimming roller 52 and the third trimming roller 53 to trim the stress of the steel strip. The surface stress of the steel strip is further adjusted by the pressure between the first trimming roller 51 and the second trimming roller 52 and the third trimming roller 53, thereby achieving more precise stress application.

[0026] Specifically, the steel strip traction mechanism includes a driving wheel 61, a driving motor, a pressure bearing 62 and a first longitudinal cylinder 63. The driving wheel 61 is connected to the driving motor. The pressure bearing 62 is arranged above the driving wheel 61 and is used to cooperate with the driving wheel 61 to achieve traction of the steel strip. The first longitudinal cylinder 63 is connected to the pressure bearing 62 and is used to drive the pressure bearing 62 to move up and down. The driving motor drives the driving wheel 61 to rotate, and the driving wheel 61 cooperates with the pressure bearing 62 to achieve the conveyance of the steel strip. The first longitudinal cylinder 63 is used to control the gap between the pressure bearing 62 and the driving wheel 61.

[0027] In order to facilitate the installation of the pressure bearing 62 , the steel belt traction mechanism further includes a bearing frame 64 , the pressure bearing 62 is arranged on the bearing frame 64 , and the first longitudinal cylinder 63 is connected to the bearing frame 64 .

[0028] Specifically, the mold forming and cutting mechanism includes a second longitudinal cylinder 71 , a cutter 72 and a cutting platform 73 . The second longitudinal cylinder 71 is connected to the cutter 72 to drive the cutter 72 to move up and down. The cutting platform 73 is arranged below the cutter 72 .

[0029] More specifically, the cutter 72 has a specific blade shape, so that the tail of the coil spring is cut into a structure with a specific shape to meet usage requirements.

[0030] In order to further achieve stress adjustment, an automatic coil spring stretching forming machine of this embodiment also includes a third elastic force trimming mechanism arranged on the base 1, the third elastic force trimming mechanism includes a third longitudinal cylinder 81, a fourth trimming roller 82, a fifth trimming roller 83 and a sixth trimming roller 84, the third longitudinal cylinder 81 is connected to the fourth trimming roller 82, and is used to drive the fourth trimming roller 82 to move up and down, the fourth trimming roller 82 is located above the common plane of the fifth trimming roller 83 and the sixth trimming roller 84, and is used to cooperate with the fifth trimming roller 83 and the sixth trimming roller 84 to adjust the stress of the steel strip. The surface stress of the steel strip is further adjusted by the pressure between the fourth trimming roller 82 and the fifth trimming roller 83 and the sixth trimming roller 84, so as to achieve more accurate stress application, and the third longitudinal cylinder 81 is used to control the adjustment of the gap between the fourth trimming roller 82 and the fifth trimming roller 83 and the sixth trimming roller 84, so as to achieve the adjustment of applied stress.

[0031] The automatic coil spring stretching machine of this embodiment has the following advantages:

[0032] 1. It adopts the bending and stretching forming process for the steel strip, so that the steel strip forms a specified curvature radius after being bent and stretched by external force, and has good non-deformable characteristics.

[0033] 2. It solves the problem of controlling the deformation amount and the bending radius of the coil spring during the stretching forming process.

[0034] 3. It can control the curvature radius of the coil spring at any position to achieve an ideal curve of the coil spring elastic force output.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "include..." or "comprise..." do not exclude the existence of other elements in the process, method, article or terminal device including the elements. In addition, in this article, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself.

[0036] The above description of the embodiments is to facilitate the understanding and use of the present invention by ordinary technicians in the technical field. It is obvious that those familiar with the technical field can easily make various modifications to the embodiments and apply the general principles described here to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. An automatic coil spring stretching machine, characterized in that: It includes a base and a steel belt clamping mechanism, a steering wheel, a first elastic trimming mechanism, a steel belt traction mechanism and a mold forming and cutting mechanism arranged on the base. The connecting line of the steel belt clamping mechanism, the steering wheel, the first elastic trimming mechanism and the steel belt traction mechanism constitutes a Z-shaped broken line structure. The first elastic trimming mechanism includes a first wheel frame, a first top wheel, a second top wheel and a steering fixed shaft. The first top wheel and the second top wheel are arranged on the first wheel frame and are used to cooperate with the steering fixed shaft to apply stress to the steel belt.

2. The automatic coil spring stretching machine according to claim 1, characterized in that: The steel belt clamping mechanism includes a supporting platform, a pressing block, a pressing support frame and a pressing cylinder. The pressing support frame is arranged on the base, and the pressing cylinder is arranged on the pressing support frame. The pressing block is connected to the pressing cylinder and is driven by the pressing cylinder to move up and down. The supporting platform is arranged below the pressing block.

3. The automatic coil spring stretching machine according to claim 1, characterized in that: It also includes a second elastic trimming mechanism arranged on the base, the second elastic trimming mechanism includes a first trimming roller, a second trimming roller and a third trimming roller, the first trimming roller is located above the common plane where the second trimming roller and the third trimming roller are located, and is used to cooperate with the second trimming roller and the third trimming roller to trim the stress of the steel strip.

4. The automatic coil spring stretching machine according to claim 1, characterized in that: The steel strip traction mechanism includes a driving wheel, a driving motor, a pressure bearing and a first longitudinal cylinder. The driving wheel is connected to the driving motor. The pressure bearing is arranged above the driving wheel and is used to cooperate with the driving wheel to realize traction of the steel strip. The first longitudinal cylinder is connected to the pressure bearing and is used to drive the pressure bearing to move up and down.

5. The automatic coil spring stretching machine according to claim 4, characterized in that: Said The steel belt traction mechanism also includes a bearing frame, the pressing bearing is arranged on the bearing frame, and the first longitudinal cylinder is connected to the bearing frame.

6. The automatic coil spring stretching machine according to claim 1, characterized in that: The mold forming and cutting mechanism comprises a second longitudinal cylinder, a cutter and a cutting platform. The second longitudinal cylinder is connected to the cutter and is used to drive the cutter to move up and down. The cutting platform is arranged below the cutter.

7. The automatic coil spring stretching machine according to claim 6, characterized in that: The cutter has a specific blade shape.

8. An automatic coil spring stretching machine according to any one of claims 1 to 7, characterized in that: It also includes a third elastic trimming mechanism arranged on the base, the third elastic trimming mechanism includes a third longitudinal cylinder, a fourth trimming roller, a fifth trimming roller and a sixth trimming roller, the third longitudinal cylinder is connected to the fourth trimming roller, and is used to drive the fourth trimming roller to move up and down, the fourth trimming roller is located above the common plane where the fifth trimming roller and the sixth trimming roller are located, and is used to cooperate with the fifth trimming roller and the sixth trimming roller to adjust the stress of the steel strip.

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