Hexagonal screw thread rolling apparatus

Abstract

This invention discloses a hexagonal washer screw thread rolling device, including a screw mounting suspension and a thread rolling assembly. The screw mounting suspension includes a clamping ring with a screw through hole. An inner retaining ring is fixedly connected to the clamping ring, and an outer retaining ring is rotatably connected to the clamping ring. A first toothed ring is located on the outer side of the outer retaining ring, a second toothed ring on the inner side, a third toothed ring on the outer side of the inner retaining ring, and a fourth toothed ring on the outer side of the clamping ring. A first gear is positioned between the second and third toothed rings, meshing with both gears. The first gear has a turning hole. A second gear meshes with the fourth toothed ring, and a third gear meshes with the first toothed ring. The thread rolling assembly includes coarse thread rolling plates arranged in a circular array around the axis of the clamping ring, with a fine thread rolling plate positioned between adjacent coarse thread rolling plates. This screw thread rolling device features automated and standardized thread rolling, comprehensive functions, and strong practicality.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and more specifically, to a hexagonal washer screw thread rolling device. Background Technology

[0002] Traditional thread rolling operations for hexagonal screws or screws with washer washers are mostly performed manually using thread rolling dies. This requires a high level of operator skill, results in a small number of threads rolled per cycle, low efficiency, and lacks automation and standardization, leading to unsatisfactory overall performance. Therefore, this invention proposes a thread rolling device for hexagonal washer screws. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hexagonal washer thread rolling device, which features automated and standardized thread rolling.

[0004] To solve the above-mentioned technical problems, the objective of the present invention is achieved as follows: The present invention relates to a hexagonal washer screw thread rolling device, comprising a screw mounting suspension and a thread rolling assembly disposed below the screw mounting suspension;

[0005] The screw mounting suspension includes a ring-shaped clamping ring plate. The clamping ring plate has several screw holes arranged in a ring array at equal intervals around its axis. Inside each screw hole is an inner retaining ring fixedly connected to the clamping ring plate and an outer retaining ring rotatably connected to the clamping ring plate. The outer retaining ring and the inner retaining ring are coaxial. The outer retaining ring has a first toothed ring on its outer side and a second toothed ring on its inner side. The inner retaining ring has a third toothed ring on its outer side. The clamping ring plate has a fourth toothed ring on its outer side. A first gear, corresponding to the number of screw holes, is located between the second and third toothed rings. The first gear meshes with both the second and third toothed rings. The first gear has a turning hole for a hexagonal rotating head of a screw to be fitted into. A second gear, which individually controls the rotation of the clamping ring plate, meshes with the fourth toothed ring. A third gear, which individually controls the rotation of the outer retaining ring, meshes with the first toothed ring.

[0006] The tooth-rolling assembly includes at least three sets of coarse tooth-rolling plates arranged in a ring array at equal intervals around the axis of the clamping ring. The grooves on the coarse tooth-rolling plates face the axis of the clamping ring. A fine tooth-rolling plate is provided between two adjacent coarse tooth-rolling plates. The grooves on the fine tooth-rolling plate also face the axis of the clamping ring. Both the coarse and fine tooth-rolling plates are provided with a linear reciprocating motion mechanism for controlling their movement. Both the coarse and fine tooth-rolling plates reciprocate along the radial direction of the clamping ring.

[0007] The present invention is further configured such that the thread rolling assembly includes three sets of coarse thread rolling plates, each of which, along with the fine thread rolling plate, can only complete the thread rolling operation of a single screw within a 120° range of the side circumference.

[0008] The invention is further configured such that for every 120° rotation of the clamping ring around the axis, the first gear carrying the screw also rotates 120°.

[0009] The present invention is further configured such that: the second gear and the third gear are respectively connected to a power assembly for controlling rotation.

[0010] The present invention is further configured such that the linear reciprocating motion mechanism is a push rod cylinder or a hydraulic cylinder.

[0011] In summary, the present invention has the following beneficial effects:

[0012] 1. The tooth-rubbing process is automated and standardized.

[0013] 2. Large number of teeth are rolled in a single batch, resulting in high efficiency.

[0014] 3. The tooth rolling operation consists of a combination of coarse rolling and fine rolling, resulting in high precision and a smooth surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram illustrating the structure of the screw-mounted suspension according to the present invention;

[0017] Figure 3 This is a schematic diagram illustrating the structure of the tooth-rubbing component of the present invention. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of the present invention, preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that these descriptions are merely for further illustrating the features and advantages of the present invention, and not for limiting the scope of the patent claims of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0020] Example 1

[0021] See Figures 1 to 3 As shown, the hexagonal washer screw rolling device involved in this embodiment includes a screw mounting suspension 100 and a rolling assembly 200 disposed below the screw mounting suspension;

[0022] The screw mounting suspension 100 includes a ring-shaped clamping ring 1. The clamping ring 1 has a plurality of screw holes 2 arranged in a ring array at equal intervals around its axis. The inner side of the screw holes 2 is provided with an inner retaining ring 3 fixedly connected to the clamping ring 1 and an outer retaining ring 4 rotatably connected to the clamping ring 1. The outer retaining ring 4 and the inner retaining ring 3 are arranged coaxially. The outer retaining ring 4 has a first toothed ring on its outer side and a second toothed ring on its inner side. The inner retaining ring 3 has a third toothed ring on its outer side. The clamping ring 1 has a fourth toothed ring on its outer side. A first gear 5 corresponding to the number of screw holes 2 is provided between the second toothed ring and the third toothed ring. The first gear 5 meshes with both the second toothed ring and the third toothed ring. The first gear 5 has a turning hole 6 for the hexagonal rotating head of the screw to be fitted into. The fourth toothed ring is meshed with a second gear 7 that controls the rotation of the clamping ring 1. The first toothed ring is meshed with a third gear 8 that controls the rotation of the outer retaining ring.

[0023] The thread rolling assembly 200 includes three sets of coarse thread rolling plates 9 arranged in a ring array at equal intervals around the axis of the clamping ring 1. The grooves on the coarse thread rolling plates 9 face the axis of the clamping ring 1. A fine thread rolling plate 10 is provided between two adjacent coarse thread rolling plates 9. The grooves on the fine thread rolling plate 10 also face the axis of the clamping ring 1. Both the coarse thread rolling plates 9 and the fine thread rolling plates 10 are provided with a linear reciprocating motion mechanism 11 for controlling their movement. The linear reciprocating motion mechanism 11 is a push rod cylinder or a hydraulic cylinder. Both the coarse thread rolling plates and the fine thread rolling plates reciprocate along the radial direction of the clamping ring 1. Each coarse thread rolling plate and each fine thread rolling plate can only complete the thread rolling operation of a single screw within a 120° range of the side circumference.

[0024] Furthermore, for every 120° rotation of the clamping ring 1 around the axis, the first gear 5 carrying the screw also rotates 120°.

[0025] Furthermore, the second gear 7 and the third gear 8 are respectively connected to a power assembly (not shown in the figure) for controlling rotation; wherein, the power assembly connected to the third gear 8 is fixedly mounted on the clamping ring 1 and moves accordingly.

[0026] In this implementation scheme, screws to be threaded are first inserted into all screw holes 2, with their rotating heads facing upwards, and suspended on clamping ring 1. Then, corresponding first gears 5 are fitted onto the rotating heads of each screw, and the first gears 5 mesh with the second and third gear rings. Finally, the two power assemblies are started simultaneously, causing the second gear 7 and the third gear 8 to rotate. The purpose of rotating the clamping ring 1 is to move the workpiece circumferentially, and the purpose of rotating the outer retaining ring 4 is to make the workpiece rotate on its own axis, thereby changing the circumferential surface for thread rolling. At the same time as the power assemblies are started, the coarse thread rolling plate 9 first abuts against the side wall of the screw for coarse thread rolling. After a set time, the coarse thread rolling plate 9 moves backward and the fine thread rolling plate 10 moves forward to perform fine thread rolling on the coarse thread rolling.

[0027] The hexagonal washer thread rolling equipment involved in this invention achieves automated and standardized thread rolling; it can roll a large number of threads per batch with high efficiency; and the thread rolling operation is composed of coarse rolling and fine rolling, resulting in high thread rolling accuracy, smooth surface, complete overall functions, and strong practicality.

[0028] Unless otherwise specified, in this invention, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this invention 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. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0029] Unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" in this invention 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 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 invention based on the specific circumstances.

[0030] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A hexagon socket screw threading apparatus, characterized by comprising: Includes a screw-mounted suspension and a threaded assembly located below the screw-mounted suspension; The screw mounting suspension includes a ring-shaped clamping ring plate. The clamping ring plate has several screw holes arranged in a ring array at equal intervals around its axis. Inside each screw hole is an inner retaining ring fixedly connected to the clamping ring plate and an outer retaining ring rotatably connected to the clamping ring plate. The outer retaining ring and the inner retaining ring are coaxial. The outer retaining ring has a first toothed ring on its outer side and a second toothed ring on its inner side. The inner retaining ring has a third toothed ring on its outer side. The clamping ring plate has a fourth toothed ring on its outer side. A first gear, corresponding to the number of screw holes, is located between the second and third toothed rings. The first gear meshes with both the second and third toothed rings. The first gear has a turning hole for a hexagonal rotating head of a screw to be fitted into. A second gear, which individually controls the rotation of the clamping ring plate, meshes with the fourth toothed ring. A third gear, which individually controls the rotation of the outer retaining ring, meshes with the first toothed ring. The tooth-rolling assembly includes at least three sets of coarse tooth-rolling plates arranged in a ring array at equal intervals around the axis of the clamping ring. The grooves on the coarse tooth-rolling plates face the axis of the clamping ring. A fine tooth-rolling plate is provided between two adjacent coarse tooth-rolling plates. The grooves on the fine tooth-rolling plate also face the axis of the clamping ring. Both the coarse and fine tooth-rolling plates are provided with a linear reciprocating motion mechanism for controlling their movement. Both the coarse and fine tooth-rolling plates reciprocate along the radial direction of the clamping ring.

2. The hexagonal washer screw thread rolling device according to claim 1, characterized in that, The thread rolling assembly includes three sets of coarse thread rolling plates. Each of the coarse and fine thread rolling plates can only complete the thread rolling operation of a single screw within a 120° range of the side circumference.

3. The hexagonal washer screw thread rolling device according to claim 2, characterized in that, For every 120° rotation of the clamping ring around the axis, the first gear carrying the screw also rotates 120°.

4. The hexagonal washer screw thread rolling device according to any one of claims 1-3, characterized in that, The second and third gears are respectively connected to a power assembly that controls their rotation.

5. The hexagonal washer screw thread rolling device according to claim 1, characterized in that, The linear reciprocating motion mechanism is a push rod cylinder or a hydraulic cylinder.

Images