A high-precision feeding mechanism for a thread rolling machine

Abstract

The present invention discloses a high-precision feeding mechanism for a thread rolling machine, belonging to the technical field of thread rolling devices. It includes a base platform, a feeding table, a transmission structure, a limiting member and a thread rolling structure. The feeding table is fixedly connected to the base platform, and a feeding groove is provided on the feeding table. The transmission structure includes a transmission wheel, a rotating bearing and a first driver. The transmission wheel is connected to the first driver. The limiting member includes a limiting plate, a guiding ring, a telescopic rod and a limiting buckle. The telescopic rod is fixedly connected to the base platform, the guiding ring is fixedly connected to the telescopic rod, the limiting buckle is located on both sides of the telescopic rod, several limiting holes are provided on the limiting plate, and the limiting buckle is clamped in the limiting holes. The thread rolling structure includes a thread rolling wheel and a second driver, and the thread rolling wheel is connected to the second driver. By arranging a limiting member between the thread rolling wheels in the present invention, the limiting member can be adjusted up and down, and at the same time, it cooperates with the feeding table and the transmission structure, so that the lead screw can be accurately introduced between the thread rolling wheels, thereby improving the processing precision of the lead screw.

Description

Technical Field

[0001] The present invention belongs to the technical field of thread rolling devices, and particularly relates to a high-precision feeding mechanism for a thread rolling machine. Background Art

[0002] A thread rolling machine is a multi-functional cold extrusion forming machine tool. The thread rolling machine can perform thread rolling, straight thread rolling, and helical thread rolling on workpieces in a cold state within its rolling pressure range; it mainly includes the rolling of straight teeth, helical teeth, and helical spline gears; straightening, necking, rolling, and various forming rolling. Existing old-fashioned thread rolling machines usually only include a thread rolling mechanism. Metal rods are manually inserted between two thread rolling wheels. As the processing is completed, the rods move backward and accumulate, resulting in low feeding efficiency and certain safety hazards due to manual feeding.

[0003] Therefore, to solve the above problems, the usual method is to install an automatic feeding mechanism on the thread rolling machine. However, most existing automatic feeding mechanisms use a guiding structure to guide the lead screw into the thread rolling wheel for processing and rolling, so as to achieve the purpose of automatic feeding. However, when the existing lead screw is exported, the lead screw will deviate due to force problems, and it is easy to collide, resulting in poor thread accuracy on the processed lead screw, affecting the surface quality, and prone to wire dropping. Summary of the Invention

[0004] The purpose of the present invention is to propose a high-precision feeding mechanism for a thread rolling machine to solve the problem that when the existing thread rolling machine feeds materials, the guiding structure is prone to uneven force when guiding the lead screw between the thread rolling wheels, resulting in poor thread accuracy on the processed lead screw, easy wire dropping, and affecting the surface quality of the processed lead screw.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: A high-precision feeding mechanism for a thread rolling machine includes a base, a feeding table, a transmission structure, a limiting member, and a thread rolling structure. The feeding table is fixedly connected to the base. A feeding groove is provided on the feeding table. The transmission structure includes a transmission wheel, a rotating bearing, and a first driver. The transmission wheel is connected to the first driver. The limiting member includes a limiting plate, a guiding ring, a telescopic rod, and a limiting buckle. The telescopic rod is fixedly connected to the base. The guiding ring is fixedly connected to the telescopic rod. The limiting buckles are located on both sides of the telescopic rod. A plurality of limiting holes are provided on the limiting plate, and the limiting buckles are clamped in the limiting holes. The thread rolling structure includes a thread rolling wheel and a second driver. The thread rolling wheel is connected to the second driver.

[0006] As a further description of the above technical solution:

[0007] The inner side of the feeding groove is in an arc shape.

[0008] As a further description of the above technical solution:

[0009] The cross-section of the limiting plate is in a V shape.

[0010] As a further description of the above technical solution:

[0011] The feeding table is located between the driving wheels, and the top of the feeding table and the bottom of the driving wheels are on the same horizontal line.

[0012] As a further description of the above technical solution:

[0013] The lowest point of the inner diameter of the guiding ring is lower than the lowest point of the feeding groove.

[0014] As a further description of the above technical solution:

[0015] An arc-shaped baffle is arranged on the second driver. The arc-shaped baffle bends outward and extends above the limiting member, and a water guiding port is formed between the arc-shaped baffles.

[0016] As a further description of the above technical solution:

[0017] A water guide pipe is arranged on the base platform, and the water guide pipe extends to the water guiding port.

[0018] As a further description of the above technical solution:

[0019] The limiting buckle includes a buckle rod and a buckle switch. A sliding groove is arranged on the buckle rod, the buckle switch is located in the sliding groove, and the buckle rod is buckled in the limiting hole.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, by arranging a plurality of limiting members and a plurality of transmission structures on the front side between the rolling dies, a feeding table is arranged between the transmission structures, the lead screw is placed on the feeding table, and the driving wheels on both sides of the feeding table transmit the lead screw into the guiding ring, avoiding the deviation of the lead screw and ensuring that the lead screw can be accurately introduced between the rolling dies, thereby improving the processing accuracy of the lead screw.

[0022] 2. In the present invention, the limiting member is arranged in the V-shaped limiting plate, a limiting buckle is arranged on the limiting member, a limiting hole is arranged on the limiting plate, and the limiting buckle is clamped in the limiting hole. The guiding ring can be adjusted up and down through the buckle switch. This structural arrangement enables the feeding mechanism to meet the transmission of lead screws of different specifications, enables the lead screw to be transmitted along the lowest point of the guiding ring, and avoids the lead screws of different specifications from being in a suspended state in the guiding ring, thereby affecting the displacement trajectory of the lead screw export.

[0023] 3. In the present invention, the limiting member and the transmission structure are arranged crosswise, so that this feeding structure can meet the feeding of lead screws of different lengths, with wide applicability and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is the front view of a high-precision feeding mechanism for a thread rolling machine.

[0026] Figure 2 It is the structural schematic diagram of the limiting member in a high-precision feeding mechanism for a thread rolling machine.

[0027] Figure 3 It is the top view of a high-precision feeding mechanism for a thread rolling machine.

[0028] Figure 4 It is the structural schematic diagram of the transmission structure in a high-precision feeding mechanism for a thread rolling machine.

[0029] Legend:

[0030] 1 - Base; 2 - Feeding table; 3 - Transmission structure; 31 - Transmission wheel; 32 - Rotating bearing; 33 - First driver; 4 - Limiting member; 41 - Limiting plate; 42 - Guide ring; 43 - Telescopic rod; 44 - Limiting buckle; 441 - Buckle rod; 442 - Buckle switch; 5 - Thread rolling structure; 51 - Thread rolling wheel; 52 - Second driver; 7 - Arc-shaped baffle; 8 - Water guide pipe; 9 - Limiting hole; 10 - Sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0034] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0035] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "inner", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please refer to Figures 1-4, the present invention provides a technical solution: a high-precision feeding mechanism for a thread rolling machine, including a base 1, a feeding table 2, a transmission structure 3, a limiting member 4 and a thread rolling structure 5. The feeding table 2 is fixedly connected to the base 1, and a feeding groove is provided on the feeding table 2. The transmission structure 3 includes a transmission wheel 31, a rotating bearing 32 and a first driver 33. The transmission wheel 31 is connected to the first driver 33. The limiting member 4 includes a limiting plate 41, a guiding ring 42, a telescopic rod 43 and a limiting buckle 44. The telescopic rod 43 is fixedly connected to the base 1, the guiding ring 42 is fixedly connected to the telescopic rod 43, the limiting buckles 44 are located on both sides of the telescopic rod 43, several limiting holes 9 are provided on the limiting plate 41, and the limiting buckles 44 are clamped in the limiting holes 9. The thread rolling structure 5 includes a thread rolling wheel 51 and a second driver 52, and the thread rolling wheel 51 is connected to the second driver 52. By arranging several limiting members and several transmission structures on the front side between the thread rolling wheels, a feeding table is arranged between the transmission structures, the lead screw is placed on the feeding table, and the transmission wheels on both sides of the feeding table transmit the lead screw into the guiding ring, avoiding the lead screw from shifting, ensuring that the lead screw can be accurately introduced between the thread rolling wheels, thereby improving the processing accuracy of the lead screw. At the same time, limiting buckles are provided on the limiting member, limiting holes are provided on the limiting plate, and the limiting buckles are clamped in the limiting holes. The guiding ring can be adjusted up and down through a buckle switch. This structure enables the feeding mechanism to meet the transmission of lead screws of different specifications, has a wide adaptation range and strong practicability.

[0038] The inner side of the feeding groove is in an arc shape, enabling the lead screw to be better transmitted.

[0039] The cross-section of the limiting plate 41 is in a V shape, improving the stability of the limiting member and preventing the lead screw from shifting due to the shaking of the limiting member under force.

[0040] The feeding table 2 is located between the transmission wheels 31, and the top of the feeding table 2 and the bottom of the transmission wheels 31 are on the same horizontal line, ensuring that the lead screw can be accurately transmitted without shifting during the transmission process.

[0041] The lowest point of the inner diameter of the guiding ring 42 is lower than the lowest point of the feeding groove, ensuring that the lead screw can be normally transmitted into the guiding ring.

[0042] An arc-shaped baffle 7 is provided on the second driver 52. The arc-shaped baffle 7 bends outward and extends above the limiting member 4, and a water guide port is formed between the arc-shaped baffles 7, preventing some iron slag from splashing out during the processing of the thread rolling wheel and damaging people's safety.

[0043] A water guide pipe 8 is provided on the base 1, and the water guide pipe 8 extends to the water guide port, enabling the water guide pipe to conduct water from the water guide port to cool the lead screw during the processing and improving the processing quality of the lead screw.

[0044] The limiting buckle 44 includes a buckle rod 441 and a buckle switch 442. A sliding groove 10 is provided on the buckle rod 441, and the buckle switch 442 is located in the sliding groove 10. The buckle rod 441 is buckled in the limiting hole 9. The guiding ring can be adjusted up and down through the buckle switch. This structural arrangement enables the feeding mechanism to meet the conveyance of lead screws of different specifications, allowing the lead screw to be conveyed along the lowest point of the guiding ring, avoiding the lead screws of different specifications from being in a suspended state in the guiding ring, thereby affecting the displacement trajectory of the lead screw export.

[0045] Working principle: By arranging a number of limiting members and a number of transmission structures on the front side between the thread rolling wheels, a feeding table is arranged between the transmission structures. The lead screw is placed on the feeding table, and the transmission wheels on both sides of the feeding table convey the lead screw into the guiding ring, avoiding the deviation of the lead screw and ensuring that the lead screw can be accurately introduced between the thread rolling wheels, thereby improving the processing accuracy of the lead screw. At the same time, a limiting buckle is provided on the limiting member, a limiting hole is provided on the limiting plate, and the limiting buckle is clamped in the limiting hole. The guiding ring can be adjusted up and down through the buckle switch. This structural arrangement enables the feeding mechanism to meet the conveyance of lead screws of different specifications, with a wide adaptation range and strong practicability.

[0046] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A high-precision feeding mechanism for a thread rolling machine, comprising a base (1), a feeding table (2), a transmission structure (3), a limiting member (4) and a thread rolling structure (5). The feeding table (2) is fixedly connected to the base (1). A feeding groove is provided on the feeding table (2). The transmission structure (3) includes a transmission wheel (31), a rotating bearing (32) and a first driver (33). The transmission wheel (31) is connected to the first driver (33). The limiting member (4) includes a limiting plate (41), a guiding ring (42), a telescopic rod (43) and a limiting buckle (44). The telescopic rod (43) is fixedly connected to the base (1). The guiding ring (42) is fixedly connected to the telescopic rod (43). The limiting buckles (44) are located on both sides of the telescopic rod (43). A number of limiting holes (9) are provided on the limiting plate (41). The limiting buckles (44) are clamped in the limiting holes (9). The thread rolling structure (5) includes a thread rolling wheel (51) and a second driver (52). The thread rolling wheel (51) is connected to the second driver (52). An arc-shaped baffle (7) is provided on the second driver (52). The arc-shaped baffle (7) bends outward and extends above the limiting member (4). A water guide port is formed between the arc-shaped baffles (7). A water guide pipe (8) is provided on the base (1). The water guide pipe (8) extends to the water guide port. The limiting buckle (44) includes a buckle rod (441) and a buckle switch (442). A sliding groove (10) is provided on the buckle rod (441). The buckle switch (442) is located in the sliding groove (10). The buckle rod (441) is buckled in the limiting hole (9). By adjusting the guiding ring up and down through the buckle switch, the feeding mechanism can meet the transmission of lead screws of different specifications, so that the lead screw can be transmitted along the lowest point of the guiding ring, avoiding the lead screws of different specifications from being in a suspended state in the guiding ring, thus affecting the displacement trajectory of the lead screw export. The inner side of the feeding groove is arc-shaped. The feeding table (2) is located between the transmission wheels (31), and the top of the feeding table (2) and the bottom of the transmission wheels (31) are on the same horizontal line.

2. The high-precision feeding mechanism of a thread rolling machine according to claim 1, characterized in that The cross-section of the limiting plate (41) is V-shaped.

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