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CN-224223810-U - Spiral spring assembly fixture

CN224223810UCN 224223810 UCN224223810 UCN 224223810UCN-224223810-U

Abstract

The utility model discloses a spiral spring assembly fixture which comprises an annular synthetic fiber fastening band I, a sliding nut, a positive screw rod and a negative screw rod, and an annular synthetic fiber fastening band II. When the spiral spring assembly fixture is used, two sliding nuts are firstly arranged on the positive and negative screw rods, two ends of the annular fiber combination fastening belt I are respectively connected with steel wires at the large pitch of the spiral spring and the sliding nuts at the upper end, one end of the annular fiber combination fastening belt II is connected with the sliding nuts at the lower end, the other end of the annular fiber combination fastening belt II bypasses the lower side of the spring to be connected with the steel wires at the large pitch of the other side of the spiral spring, and the compression of the spiral spring can be realized by twisting the positive and negative screw rods, so that the assembly purpose is achieved. Compared with the traditional spiral spring assembling tool adopting a fastening belt mode, the spiral spring assembling tool is more labor-saving in use, reduces occupied manpower resources, reduces assembling time and greatly improves production efficiency.

Inventors

  • ZHANG JINBANG
  • WANG TAO
  • HUANG HONGJIE
  • HE JINGSI
  • ZHU KUN

Assignees

  • 湖北三江航天万山特种车辆有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (9)

  1. 1. A spiral spring assembling tool is characterized by comprising a fastening belt I (1), sliding nuts (2), a positive and negative screw rod (3) and a fastening belt II (4), wherein the positive and negative screw rod (3) is provided with two sliding nuts (2), two ends of the fastening belt I (1) are respectively connected with steel wires at a large pitch of a spiral spring (10) and the sliding nuts (2) at the upper end, one end of the fastening belt II (4) is connected with the sliding nuts (2) at the lower end, and the other end of the fastening belt II bypasses the position, corresponding to the large pitch of the other side, of the spiral spring (10) from the lower side of the spring and is connected with the steel wires.
  2. 2. The spiral spring assembling tool according to claim 1, wherein the fastening belt I (1) and the fastening belt II (4) are annular synthetic fiber fastening belts.
  3. 3. The spiral spring assembling tool according to claim 1, wherein the two sliding nuts (2) are respectively a forward-rotating nut and a reverse-rotating nut.
  4. 4. The spiral spring assembling tool according to claim 1, wherein the sliding nut (2) comprises a nut portion (21) and a connecting portion (22), the nut portion (21) and the positive and negative screw (3) form a moving pair, the connecting portion (22) is integrally arranged on the outer wall of the nut portion (21), and the connecting portion (22) is connected with the fastening belt.
  5. 5. A coil spring assembling tool according to claim 4, wherein the connecting portion (22) is provided with a rotating sleeve (23).
  6. 6. The coil spring assembling tool as set forth in claim 5, wherein the guide rod (24) is integrally provided on the rotating sleeve (23), and the guide rod (24) slides along the coil spring.
  7. 7. The spiral spring assembling tool according to claim 1, wherein the front screw (3) is sleeved with a protective sleeve (5) for preventing the fastening belt from being scratched in the rotating process.
  8. 8. The spiral spring assembling tool according to claim 7, wherein the protective sleeve (5) is fixedly connected with the sliding nut (2).
  9. 9. The spiral spring assembling tool according to claim 1, wherein the positive and negative screw rod (3) comprises an upper screw rod and a lower screw rod, the lower end of the upper screw rod is connected with the lower screw rod, and the rotation direction of the upper screw rod is opposite to that of the lower screw rod.

Description

Spiral spring assembly fixture Technical Field The utility model relates to the field of chassis suspension device assembly, in particular to a spiral spring assembly fixture. Background When the spiral spring is installed in a chassis suspension device of a certain vehicle type, the spiral spring needs to be compressed for a certain displacement to meet the assembly requirement of the spiral spring. Because the upper end face and the lower end face of the spiral spring are required to be provided with the upper spring bracket and the lower spring bracket, the end face cannot be used for loading the compression spring, and only the force on the steel wire of the spiral spring can be selected. However, the wire is smooth, the pitch of the spring is small, the force is difficult, one side of the installation position of the coil spring is occupied by the suspension arm, and the operation space is limited. In the prior art, when the suspension device is assembled, 3 fastening belts are uniformly distributed at three points to apply pressure to compress the spring to a certain length, one fastening belt is limited on one side of an installation space, the spiral spring cannot be assembled, 1 fastening belt is required to be disassembled, the spring is not uniform in binding force, the end face of the spring is inclined to a certain extent, the end face of the spring is easy to interfere during assembly in the state, the assembly is difficult, and the problem that the labor intensity is high and the efficiency is low exists due to the fact that the fastening belt compresses the spiral spring is used. Disclosure of utility model The utility model provides a coil spring assembly fixture aiming at the problems. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a coil spring assembly fixture, includes fastening area I, slip nut, positive and negative screw rod, fastening area II, install two slip nuts on the positive and negative screw rod, fastening area I's both ends are connected with the steel wire of coil spring big pitch department and the slip nut of upper end respectively, fastening area II's one end is connected with the slip nut of lower extreme, and the other end is walked around to coil spring corresponding opposite side big pitch department and is connected with the steel wire from the below of spring. Preferably, the fastening strips I and II are loop-shaped synthetic fiber fastening strips. Preferably, the two sliding nuts are respectively a forward nut and a reverse nut. Preferably, the sliding nut comprises a nut part and a connecting part, the nut part and the positive and negative screw form a moving pair, the connecting part is integrally arranged on the outer wall of the nut part, and the connecting part is connected with the fastening belt. Preferably, the connecting part is provided with a rotating sleeve. Preferably, the rotating sleeve is integrally provided with a guide rod, and the guide rod slides along the coil spring. As the preferable mode of the scheme, the positive and negative screw is sleeved with a protective sleeve for preventing the fastening belt from being scratched in the rotating process. Preferably, the protecting sleeve is fixedly connected with the sliding nut. As the preferable choice of the scheme, the positive and negative screw rod comprises an upper screw rod and a lower screw rod, the lower end of the upper screw rod is connected with the lower screw rod, and the rotation direction of the upper screw rod is opposite to that of the lower screw rod. Due to the structure, the utility model has the beneficial effects that: Compared with the traditional spiral spring assembling tool adopting a fastening belt mode, the spiral spring assembling tool is more labor-saving in use, reduces occupied manpower resources, reduces assembling time and greatly improves production efficiency. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. FIG. 1 is an assembly view of the present utility model; FIG. 2 is a schematic view of a slip nut according to the present utility model; FIG. 3 is a side view of FIG. 2; fig. 4 is a top view of fig. 2. Detailed Description The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. As shown in fig. 1 to 4, this embodiment provides a coil spring assembly fixture, including fastening area I1, slip nut 2, positive and negative screw rod 3, fastening area II4, install two slip nuts 2 on the positive and negative