Thread rolling rotation stopping device

Abstract

The utility model discloses a rotation stopping device, belongs to the technical field of thread rolling, and particularly relates to a thread rolling rotation stopping device which comprises a gear ring, an adjuster shell, a coil spring flange and a stopping assembly. The gear ring is fixedly installed on the top of the regulator shell, the coil spring flange is connected to the regulator shell in a sleeved mode, and the locking assembly is installed in the regulator shell. The stop assembly is composed of an adjusting screw, a steel ball and a spiral compression spring. The up-down gap between the gear ring and the regulator shell can be controlled by adjusting the distance of the steel balls (because the steel balls are installed on the inclined ramp) through the adjusting screw, meanwhile, the spiral compression spring is installed on one side of the steel balls, directional force is applied, and therefore free adjustment of the positions of the steel balls is achieved. The rolling head provides an effective locking mode for a large-pitch and large-lead nominal diameter thread, meanwhile, the stability of a product is improved, and maintenance is efficient and flexible.

Description

Technical Field

[0001] This utility model discloses a rotary stop device, belonging to the field of thread rolling technology, specifically relating to a thread rolling rotary stop device. Background Technology

[0002] Thread rolling technology belongs to the fields of mechanical manufacturing, metal forming and processing, and surface strengthening of metal parts. It is a non-cutting machining process that uses tools to plastically deform metal materials to form threads on the workpiece. Threads formed in this way have high dimensional accuracy, surface quality, and material strength, and the production efficiency is also high.

[0003] Thread rolling technology originated in the early 20th century. With the development of metal plastic deformation theory and the advancement of practical applications, it has gradually become a highly efficient and energy-saving precision forming process. The background of this technology mainly includes the following aspects: Materials science and mechanics foundation: Thread rolling relies on the plastic deformation capacity of metallic materials, that is, under certain pressure, metallic materials can undergo permanent shape changes without destroying their internal continuity. This requires the materials used to have good plasticity and strain hardening properties. Advances in mechanical manufacturing technology: With the improvement of mold design and manufacturing precision, and the development of high-efficiency, high-precision rolling equipment, thread rolling technology has been realized and gradually improved. This technology uses special thread rolling wheels or dies to compress the workpiece, thereby forming threads. Energy saving and environmental protection requirements: Compared with traditional cutting methods, thread rolling belongs to the category of chipless processing, which not only reduces the generation of cutting waste but also reduces energy consumption, meeting the requirements of modern industrial production for green manufacturing and sustainable development. The need to improve quality and reduce costs: Thread rolling produces threads with high surface finish, improved fatigue strength and tensile strength, while also increasing production efficiency and reducing unit cost. Therefore, it has been widely used in many industries such as aerospace, automobile manufacturing, and fastener production.

[0004] Disadvantages: High material requirements: Thread rolling has specific requirements for the plasticity and hardness of the workpiece material. It is not suitable for materials with excessively high or low hardness or poor plasticity. For example, materials with excessively high hardness may not be able to form threads through rolling or may cause rapid wear of the rollers. Strict initial blank size control: Before thread rolling, the blank size must be accurate and consistent. Otherwise, excessive size may lead to excessive roller pressure and equipment damage, or insufficient size may prevent the formation of a complete thread. Equipment investment and mold costs: Thread rolling equipment and its matching roller molds are usually more expensive than ordinary cutting machine tools, especially when customizing molds of special specifications, resulting in higher initial investment costs. Difficulty in process adjustment: Once the rolling parameters are determined, changing the thread size or type often requires replacing the mold and readjusting the process parameters, which increases the challenge to production flexibility. Difficulty in quality control: During thread rolling, improper operation or poor equipment condition can easily lead to defects such as inaccurate thread shape, increased thread root diameter, and twisted thread profile. These require precise quality control methods for detection and prevention. Not applicable to complex or non-standard threads: For non-standard threads with unusual pitch, large diameter changes, special shapes, or other non-standard threads, the application of thread rolling technology is limited due to the lack of readily available roller molds. Utility Model Content

[0005] Purpose of the utility model: To provide a thread rolling rotation stop device to solve the problems mentioned above.

[0006] Technical solution: A thread rolling rotary stop device, the rotary stop device comprising: a gear ring, an adjuster housing, a disc spring flange, and a stop assembly;

[0007] The gear ring is fixedly installed on the top of the regulator housing, the disc spring flange is sleeved on the regulator housing, and the stop assembly is installed inside the regulator housing;

[0008] The stop assembly consists of an adjusting screw, a steel ball, and a helical compression spring.

[0009] In a further embodiment, the stop assembly is provided in several groups, and the regulator housing is provided with inclined ramps corresponding to the number of stop assemblies, and the stop assemblies are installed in the inclined ramps.

[0010] In a further embodiment, the inclined ramps on the regulator housing are arranged in a circumferentially equidistant manner.

[0011] In a further embodiment, the bottom of the gear ring is provided with a groove corresponding to the position of the inclined ramp.

[0012] In a further embodiment, the adjusting screw is installed at one end of the inclined ramp, and the helical compression spring is installed at the other end of the inclined ramp, with the steel ball installed between the adjusting screw and the helical compression spring.

[0013] In a further embodiment, the regulator housing is provided with a wedge groove, and a clutch wedge is provided in the wedge groove.

[0014] In a further embodiment, the wedge grooves are provided in a plurality of them and are arranged in a circumferentially equidistant manner.

[0015] This utility model features a non-standard design for specific industries. The rolling head provides an effective stopping method for nominal diameter threads with large pitch and large lead. This utility model offers the following advantages:

[0016] 1. Increased production efficiency, improved product quality, and higher precision reduce debugging difficulty;

[0017] 2. Optimize the structure of the thread rolling tool body;

[0018] 3. Simple to operate, flexible to adjust, and efficient to maintain. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of this utility model.

[0020] Figure 2 This is a schematic diagram of the present invention.

[0021] Figure 3 This is an exploded view of this utility model.

[0022] Reference numerals: 1. Gear ring; 2. Adjuster housing; 3. Disc spring flange; 4. Stop assembly; 40. Adjusting screw; 41. Steel ball; 42. Helical compression spring; 5. Inclined ramp; 6. Slide groove; 7. Wedge groove; 8. Clutch wedge block. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] A threaded rolling rotary stop device includes: a gear ring 1, an adjuster housing 2, a disc spring flange 3, and a stop assembly 4.

[0027] In one embodiment, such as Figures 1 to 3 As shown, the gear ring 1 is fixedly installed on the top of the regulator housing 2, the disc spring flange 3 is sleeved on the regulator housing 2, and the stop assembly 4 is installed inside the regulator housing 2;

[0028] The stop assembly 4 consists of an adjusting screw 40, a steel ball 41, and a helical compression spring 42.

[0029] In one embodiment, such as Figures 1 to 3 As shown, the stop assembly 4 is provided in several groups, and the regulator housing 2 is provided with inclined ramps 5 corresponding to the number of stop assemblies 4. The stop assembly 4 is installed in the inclined ramps 5.

[0030] In one embodiment, such as Figures 1 to 3 As shown, the inclined ramps 5 on the regulator housing 2 are arranged in a circumferentially equidistant manner.

[0031] In one embodiment, such as Figures 1 to 3 As shown, the bottom of the gear ring 1 is provided with a groove 6 corresponding to the position of the inclined ramp 5.

[0032] In one embodiment, such as Figures 1 to 3As shown, the adjusting screw 40 is installed at one end of the inclined ramp 5, and the spiral compression spring 42 is installed at the other end of the inclined ramp 5. The steel ball 41 is installed between the adjusting screw 40 and the spiral compression spring 42.

[0033] In one embodiment, such as Figures 1 to 3 As shown, the regulator housing 2 is provided with a wedge groove 7, and a clutch wedge block 8 is provided in the wedge groove 7.

[0034] In one embodiment, such as Figures 1 to 3 As shown, the wedge grooves 7 are provided in a plurality of manner and are arranged in a circumferentially equidistant manner.

[0035] Working Principle: This invention mainly relies on slope limiting, thread adjustment, and reverse pressure applied by a spring. The specific process is as follows: During thread rolling, the rolling head feeds along the axial direction. When the thread length requirement is met, the rolling tool opens under the action of inertial force. Because the product processed by this rolling head has a large pitch, the instantaneous opening force will force a large gap between the head and tail of the rolling tool. To solve this problem, six inclined ramps 5 are added to the adjuster housing 2. By adjusting the distance of the steel balls 41 by adjusting the screws 40 (because the steel balls 41 are installed on the inclined ramps 5), the vertical gap between the gear ring 1 and the adjuster housing 2 can be controlled. At the same time, a helical compression spring 42 is installed on one side of the steel balls 41 to apply directional force, thereby realizing the free adjustment of the position of the steel balls 41.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A thread-rolled rotational stop device, characterized in that, The rotary stop device includes: a gear ring, an adjuster housing, a disc spring flange, and a stop assembly; The gear ring is fixedly installed on the top of the regulator housing, the disc spring flange is sleeved on the regulator housing, and the stop assembly is installed inside the regulator housing; The stop assembly consists of an adjusting screw, a steel ball, and a helical compression spring.

2. A thread-rolled rotational stop device according to claim 1, characterized in that The stop assembly is provided in several groups, and the regulator housing is provided with inclined ramps corresponding to the number of stop assemblies, and the stop assemblies are installed in the inclined ramps.

3. A thread-rolled rotational stop device according to claim 2, characterized in that The inclined ramps on the regulator housing are arranged in a circumferentially equidistant manner.

4. A thread-rolled rotational stop device according to claim 2, characterized in that The bottom of the gear ring is provided with a groove corresponding to the position of the inclined ramp.

5. A thread-rolled rotational stop device according to claim 2, characterized in that The adjusting screw is installed at one end of the inclined ramp, and the helical compression spring is installed at the other end of the inclined ramp. The steel ball is installed between the adjusting screw and the helical compression spring.

6. A thread-rolled rotational stop device according to claim 1, characterized in that The regulator housing is provided with a wedge groove, and a clutch wedge block is provided in the wedge groove.

7. A thread-rolled rotational stop device according to claim 6, characterized in that The wedge grooves are provided in a plurality of them and are arranged in a circumferentially equidistant manner.

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