Assembly tool for torsion spring with small diameter and large wire diameter

Abstract

The utility model relates to the technical field of torsion spring assembly, in particular to an assembly tool for a torsion spring with a small diameter and a large wire diameter, which comprises a support arm and a positioning piece which are connected, the support arm comprises a first end part and a second end part, the first end part is hinged with a torsion spring assembly piece, and the positioning piece comprises a first positioning plate and a second positioning plate which are connected. According to the assembly tool for the torsion spring with the small diameter and the large wire diameter, aiming at the torsion spring with the small diameter (40-60 mm) and the large coil outer diameter (phi 8-phi 12 mm), single-person operation can be achieved, assembly is easy, the torsion spring assembly efficiency is improved, and safety risks caused by rebound of the torsion spring are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion spring assembly, in particular to an assembly tool for torsion springs with small diameter and large wire diameter. Background Art

[0002] As wheeled grain combine harvesters gradually develop into the mid-to-high-end field, some new product structures have emerged, and with them comes the development of new assembly processes and tooling. Many challenges are faced in the development of new processes and tooling.

[0003] At present, the torsion springs of the movable plate of the ear elevator of the corn harvester have the characteristics of small diameter (40-60mm) and large outer diameter of the coil (the wire diameter of the torsion spring is φ8-φ12mm), which leads to the high torsion force of the finished torsion spring and difficulty in assembly. In addition, the torsion spring is prone to rebound after being twisted in the reverse direction during assembly. At the same time, there is no special assembly tool for such torsion springs on the market. Assembly in the workshop requires two people to work and relies on manual pressing, which is time-consuming and labor-intensive, inconvenient to operate, and there is a safety risk of torsion spring rebound. The assembly of torsion springs is difficult and the assembly efficiency is low.

[0004] Therefore, it is urgent to develop an assembly tool suitable for small-diameter and large-wire-diameter torsion springs to solve the current assembly problem of the torsion spring of the movable plate of the corn harvester ear elevator. Utility Model Content

[0005] In order to solve the above technical problems existing in the prior art, the utility model provides an assembly tool for torsion springs with small diameter and large wire diameter.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] The utility model provides an assembly tool for torsion springs with small diameter and large wire diameter, comprising a connected support arm and a positioning member, wherein the support arm comprises a first end and a second end, the first end is hinged to the torsion spring assembly member, and the positioning member comprises a first positioning plate and a second positioning plate connected to each other.

[0008] The above-mentioned assembly tool provided by the utility model is aimed at the assembly operation of torsion springs with small diameter (40-60mm) and large wire diameter (φ8-φ12mm). The positioning part is used to abut against the torsion spring and apply force to the torsion spring. The support arm is manually pushed to drive the positioning part to rotate, and the torsion spring expands to achieve assembly. It can be operated by one person, the assembly is simple, the efficiency of torsion spring assembly is improved, and the safety risks caused by torsion spring rebound are greatly reduced.

[0009] On the basis of the above technical solution, the present invention can also make the following technical improvements:

[0010] Furthermore, the first positioning plate and the second positioning plate are perpendicular to each other.

[0011] The beneficial effect of adopting the above-mentioned further technical solution is that the first positioning plate and the second positioning plate are arranged vertically to adapt to the shape structure of the torsion spring, providing a space for accommodating the torsion spring. When the support arm is pushed manually, the positioning piece can realize the rapid expansion of the torsion spring, thereby facilitating the assembly of the torsion spring.

[0012] Furthermore, the support arm includes a first support arm and a second support arm connected to each other, and the first support arm and the second support arm are perpendicular to each other.

[0013] The beneficial effect of adopting the above-mentioned further technical solution is that the support arm has an L-shaped structure, which is conducive to manual operation and the rotation and connection of the assembly tool to the torsion spring assembly part, which is convenient for assembly and helps to improve the operation stability.

[0014] Furthermore, the first end portion is provided on the first support arm, a first through hole is formed in the first end portion, a first pin shaft is provided in the first through hole, and a cotter pin is provided at the end portion of the first pin shaft.

[0015] The beneficial effect of adopting the above further technical solution is that the first arm is connected to the torsion spring assembly to be assembled through the pin, which plays a certain fixing role and improves the assembly stability.

[0016] Furthermore, the second end portion is provided on the second support arm, and a second through hole is formed in the second end portion.

[0017] The beneficial effect of adopting the above further technical solution is that the storage of the assembly tool is facilitated by providing the second through hole.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] The assembly tool for torsion springs with small diameter and large wire diameter provided by the utility model is suitable for the assembly of torsion springs with small diameter (40-60mm) and large wire diameter (φ8-φ12mm). It can be operated by one person. The positioning part is driven to rotate by manual pushing of the support arm, and the assembly is achieved by expanding the torsion spring. The assembly is simple, the assembly efficiency of the torsion spring is improved, and the safety risk caused by the rebound of the torsion spring is greatly reduced. The specific positioning part and support arm structure are set to improve the convenience of assembly and the stability of the tool assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of an assembly tool according to an embodiment of the present invention is shown;

[0021] Figure 2 Shows an assembly schematic diagram of an assembly tool according to an embodiment of the present utility model;

[0022] Reference numerals:

[0023] 1. Assembly tool; 11. Support arm; 111. First support arm; 112. Second support arm; 12. Positioning member; 121. First positioning plate; 122. Second positioning plate; 13. First pin; 14. Split pin; 15. Second through hole;

[0024] 2. Torsion spring assembly; 21. Second pin; 22. Intermediate tube; 23. Connecting plate;

[0025] 3. Torsion spring. DETAILED DESCRIPTION

[0026] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] See also Figure 1 The utility model provides an assembly tool for torsion springs with small diameter and large wire diameter, which is used to assemble a torsion spring 3 with a diameter of 40-60 mm and a coil outer diameter of φ8-φ12 mm on a torsion spring assembly part 2. The assembly tool 1 includes a connected support arm 11 and a positioning member 12; specifically, the positioning member 12 includes a first positioning plate 121 and a second positioning plate 122 connected, and the first positioning plate 121 and the second positioning plate 122 are perpendicular to each other; the support arm 11 includes a first support arm 111 and a second support arm 112 connected, and the first support arm 111 and the second support arm 112 are perpendicular to each other, and the support arm 11 includes a first support arm 111 and a second support arm 112 connected, and the first support arm 111 and the second support arm 112 are perpendicular to each other. It includes two free ends, namely a first end and a second end, the first end is arranged on the first support arm 111, the first end is provided with a first through hole, the first through hole is provided with a first pin shaft 13, which is used to hinge the assembly tool 1 with the torsion spring assembly part 2, the end of the first pin shaft 13 is provided with a cotter pin 14, the end of the first pin shaft 13 is provided with a third through hole, the third through hole is used to pass the cotter pin 14, the second end is provided on the second support arm 112, the second end is provided with a second through hole 15, the second through hole 15 can realize the hanging storage of the assembly tool 1, providing storage convenience.

[0028] See also Figure 2, use the assembly tool 1 to assemble the torsion spring 3 on the torsion spring assembly part 2, the torsion spring assembly part 2 is a movable plate, and the torsion spring assembly part 2 is provided with a pair of connecting plates 23, and the connecting plate 23 is provided with a fourth through hole for the first pin shaft 13 to pass through. First, the first pin shaft 13 is passed through the fourth through hole and the first through hole to realize the hinge connection of the assembly tool 1 and the torsion spring assembly part 2, and the cotter pin 14 is installed in the third through hole at the end of the first pin shaft 13 to prevent the first pin shaft 13 from falling out; then the torsion spring 3 is placed at the bending part of the torsion spring assembly part 2, and the positioning piece 12 set by the bending is used to align the torsion spring 3 so that the first positioning plate 121 and the second positioning plate 122 respectively contact different outer walls of the torsion spring 3; then manually hold the second support arm 112 and rotate it in the counter-rotating direction of the torsion spring 3 to expand the torsion spring 3, thereby putting the torsion spring 3 on the second pin shaft 21 and the intermediate tube 22, and remove the assembly tool 1, that is, the successful assembly of the torsion spring 3 is achieved.

[0029] The assembly tool for torsion springs with small diameter and large wire diameter provided by the utility model is suitable for the assembly of torsion springs with small diameter (40-60mm) and large coil outer diameter (φ8-φ12mm). The torsion spring can be expanded by manually pushing the support arm, thereby completing the torsion spring assembly. It can be operated by one person, the assembly is simple, the efficiency of torsion spring assembly is improved, and the safety risks caused by torsion spring rebound are greatly reduced.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An assembly tool for small diameter and large wire diameter torsion springs, characterized in that: The utility model comprises a connected support arm and a positioning member, wherein the support arm comprises a first end and a second end, the first end is hinged to the torsion spring assembly member, and the positioning member comprises a connected first positioning plate and a second positioning plate.

2. The assembly tool for small-diameter and large-wire-diameter torsion springs according to claim 1, characterized in that: The first positioning plate and the second positioning plate are perpendicular to each other.

3. The assembly tool for small-diameter and large-wire-diameter torsion springs according to claim 1, characterized in that: The support arm includes a first support arm and a second support arm that are connected to each other, and the first support arm and the second support arm are perpendicular to each other.

4. The assembly tool for small-diameter and large-wire-diameter torsion springs according to claim 3, characterized in that: The first end portion is arranged on the first support arm, a first through hole is opened in the first end portion, a first pin shaft is arranged in the first through hole, and a cotter pin is arranged at the end portion of the first pin shaft.

5. The assembly tool for small-diameter and large-wire-diameter torsion springs according to claim 3, characterized in that: The second end portion is arranged on the second support arm, and a second through hole is formed in the second end portion.

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