A torsion spring assembly jig

Abstract

The utility model discloses a torsion spring assembly fixture, including base, the middle sliding installation of base has a pair of positioning rod, the top of a pair of positioning rod common activity installation has the same limit block, and the elastic component is connected between limit block and base, so that limit block cooperation elastic component drives a pair of positioning rod relative movement below base, and with the inner wall of torsion spring ring structure place abuts, and one end of base is rotatably installed with a pair of handle through the pivot, and the fixed mounting of handle has the pressure bar, and the pressure bar extends to with torsion spring arm lever structure place and touches. The utility model discloses a scissors type assembly fixture through base, handle, positioning rod and elastic component composition, is used to the contraction and positioning of torsion spring assembly, makes torsion spring always in the safe stress interval in the assembly process, guarantees torsion spring product quality and service life, reduces assembly difficulty and operation threshold, and adapts different specifications' torsion spring assembly demand, has stronger universality.

Description

Technical Field

[0001] This utility model relates to the field of tooling fixtures, specifically a torsion spring assembly fixture. Background Technology

[0002] In modern industrial production, torsion springs, as important energy storage and reset components, are widely used in machinery, electronics, automobiles, and other fields. Their assembly quality directly affects the stability and service life of equipment, especially in high-precision equipment, where the control of contraction force and positioning accuracy during torsion spring assembly are extremely important.

[0003] Currently, traditional torsion spring assembly methods mostly rely on manual operation. When operating and contracting the torsion spring, it is difficult to accurately control the force and contraction range, which can easily lead to uneven stress on the torsion spring, resulting in deformation, breakage, and other problems. This affects the quality and service life of the finished product. Furthermore, the torsion spring stores a large amount of elastic potential energy during contraction. If the force is out of control or the positioning is unstable when directly touching the torsion spring with your hand, it may cause the torsion spring to suddenly spring back, causing cuts or pinches to the operator's hands, posing a certain safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a torsion spring assembly fixture to solve the problem of certain safety hazards in the conventional manual assembly of torsion springs mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a torsion spring assembly fixture, comprising a base, a pair of positioning rods slidably mounted in the middle of the base, a common limiting block movably mounted on the top of the pair of positioning rods, an elastic member connecting the limiting block and the base, so that the limiting block cooperates with the elastic member to drive the pair of positioning rods to move relative to each other below the base and abut against the inner wall of the torsion spring ring structure, a pair of handles rotatably mounted on one end of the base via a rotating shaft, a pressure rod fixedly mounted on the handle, the pressure rod extending to abut against the torsion spring arm structure.

[0006] Preferably, the base is provided with a sliding hole for accommodating the positioning rod, and the top of the base is integrally formed with a vertical lug on one side of the sliding hole. A fixing rod is fixedly installed at one end of the vertical lug, the limiting block is slidably installed on the fixing rod, and the elastic member is connected to the fixing rod.

[0007] Preferably, the elastic member is a spring sleeved on the fixed rod, and the two ends of the spring are respectively connected to the lug and the limiting block.

[0008] Preferably, the limiting block is provided with two oblique holes for accommodating the positioning rod, and the two oblique holes are arranged opposite to each other.

[0009] Preferably, the handle has at least two circular holes for receiving the pressure rod, and the pressure rod is locked in the circular holes by a pair of nuts.

[0010] Preferably, the handle has an arc-shaped segment that fits the hand.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model consists of a base, handle, positioning rod, and elastic component forming a scissor-type assembly fixture, which is used for the contraction and positioning of torsion springs during assembly. This ensures that the torsion spring is always within a safe stress range during the assembly process, guaranteeing the quality and service life of the finished torsion spring, reducing assembly difficulty and operational threshold, and adapting to the assembly needs of torsion springs of different specifications, thus having strong versatility. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the first state of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the second state of this utility model;

[0015] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the pressure rod and handle of this utility model.

[0017] In the diagram: 1. Base; 2. Handle; 3. Fixing rod; 4. Limiting block; 5. Positioning rod; 6. Pressure rod; 7. Round hole; 8. Sliding hole; 9. Spring; 10. Nut. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4This utility model provides a technical solution: a torsion spring assembly fixture, including a base 1, a pair of positioning rods 5 slidably mounted in the middle of the base 1, each positioning rod 5 having an anti-disengagement ring, and a common limiting block 4 movably mounted on the top of the pair of positioning rods 5. An elastic member connects the limiting block 4 and the base 1, so that the limiting block 4, in conjunction with the elastic member, drives the pair of positioning rods 5 to move relative to each other below the base 1 and abut against the inner wall of the torsion spring ring structure. The base 1 has a sliding hole 8 for accommodating the positioning rods 5. A vertical lug is integrally formed on one side of the sliding hole 8 at the top of the base 1, and a fixing rod 3 is fixedly mounted at one end of the lug. The limiting block 4 is slidably mounted on the fixing rod 3. The elastic member and the fixed rod 3 are connected by an elastic member. The fixed rod 3 is connected to the elastic component, which is a spring 9 sleeved on the fixed rod 3. The two ends of the spring 9 are connected to the lug and the limiting block 4 respectively. The limiting block 4 has two oblique holes for accommodating the positioning rod 5. The two oblique holes are arranged opposite each other and have an "eight" shape. One end of the base 1 has a clamping cavity. A pair of handles 2 are rotatably installed in the clamping cavity through a rotating shaft. The handles 2 have an arc-shaped section that fits the hand. A pressure rod 6 is fixedly installed on the handles 2. The pressure rod 6 extends to abut against the torsion spring arm structure. The handles 2 have at least two round holes 7 for accommodating the pressure rod 6. The advantage of this setting is that it is convenient to make adjustments according to different specifications of torsion springs. The pressure rod 6 is locked in the round holes 7 by a pair of nuts. The base 1 and handles 2 form a torsion spring assembly shear. The advantage of this setting is that the torsion spring contraction process is restricted inside the assembly shear structure. The operator's hand is away from the direct force point. Even if there is an accidental rebound, it can be blocked by the scissor structure, reducing the risk of pinching and ejection.

[0020] In use, first push the limiting block 4 horizontally so that the limiting block 4 moves horizontally on the top of the base 1 and drives a pair of positioning rods 5 to move and retract relative to each other. Then, place the pair of positioning rods 5 at the annular structure of the torsion spring to be assembled. Then, release the limiting block 4, and the spring 9 releases its own elastic potential. With the help of the limiting block 4, the pair of positioning rods 5 slide and expand in the sliding hole 8 until they contact the annular structure of the torsion spring. Rotate the pair of handles 2 until the pressure rod 6 contacts the arm structure of the torsion spring. Then, by controlling the squeezing force of the handles 2 (i.e., the magnitude of the applied torque), the torsion spring arm is forced to rotate around the spring axis, thereby compressing the torsion spring body, storing elastic potential energy, and assembling it at the designated position. Using the principle of force-saving lever, the operator only needs to apply a small gripping force to drive the pressure rod 6 through the handles 2 to generate sufficient contraction force, effectively reducing the labor intensity during assembly.

[0021] This application uses a base 1, handle 2, positioning rod 5 and elastic component to form a scissor-type assembly fixture, which is used for the contraction and positioning of torsion springs during assembly. This ensures that the torsion spring is always within a safe stress range during the assembly process, guarantees the quality and service life of the finished torsion spring, reduces assembly difficulty and operation threshold, and is adaptable to the assembly needs of torsion springs of different specifications, thus having strong versatility.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A torsion spring assembly fixture, characterized in that: Includes a base (1), in which a pair of positioning rods (5) are slidably installed. The top of the pair of positioning rods (5) is movably mounted with the same limiting block (4). An elastic member is connected between the limiting block (4) and the base (1) so that the limiting block (4) cooperates with the elastic member to drive the pair of positioning rods (5) to move relative to each other below the base (1) and abut against the inner wall of the torsion spring ring structure. A pair of handles (2) are rotatably installed at one end of the base (1) via a rotating shaft. A pressure rod (6) is fixedly installed on the handle (2) and extends to abut against the torsion spring arm structure.

2. The torsion spring assembly fixture according to claim 1, characterized in that: The base (1) is provided with a sliding hole (8) for accommodating the positioning rod (5). The top of the base (1) is integrally formed with a vertical lug on one side of the sliding hole (8). A fixing rod (3) is fixedly installed at one end of the vertical lug. The limiting block (4) is slidably installed on the fixing rod (3). The elastic member is connected to the fixing rod (3).

3. The torsion spring assembly fixture according to claim 2, characterized in that: The elastic component is a spring (9) sleeved on the fixed rod (3), and the two ends of the spring (9) are respectively connected to the lug and the limiting block (4).

4. The torsion spring assembly fixture according to claim 1, characterized in that: The limiting block (4) is provided with two oblique holes for accommodating the positioning rod (5), and the two oblique holes are arranged opposite to each other.

5. A torsion spring assembly fixture according to claim 1, characterized in that: The handle (2) is provided with at least two round holes (7) for accommodating the pressure rod (6), and the pressure rod (6) is locked in the round holes (7) by a pair of nuts.

6. A torsion spring assembly fixture according to claim 1, characterized in that: The handle (2) is provided with an arc-shaped section that fits the hand.

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