Spinning machine countershaft machining mechanism

Abstract

The utility model belongs to the technical field of spinning machines, and particularly relates to a spinning machine countershaft machining mechanism which comprises a spinning machine body, a clamping assembly used for clamping a workpiece is arranged on the spinning machine body, the clamping assembly comprises two telescopic rotating assemblies arranged on the spinning machine body, and each telescopic rotating assembly is provided with a hollow shell. A plurality of through holes, a plurality of first connecting grooves, a plurality of rotating grooves and a plurality of attaching grooves are formed in one side of the hollow shell, movable rods are arranged in the through holes, connecting plates moving in the first connecting grooves are arranged on the outer sides of the movable rods, meshing teeth are arranged on the connecting plates, and a first gear and a second gear are rotationally arranged in each rotating groove; the first gear is meshed with the second gear and the meshing teeth. According to the device, clamping force is simultaneously applied to the auxiliary shaft from multiple directions through the four friction rollers with different rotating directions, so that a stable clamping system is formed, and the reliability and the product percent of pass in the machining process are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spinning machine, specifically relates to a spinning machine auxiliary shaft processing mechanism. BACKGROUND

[0002] In modern manufacturing industry, spinning working is an advanced plastic forming process, and is widely used in many fields such as aerospace, automobile manufacturing, electronic equipment and the like. The spinning machine rotates the blank and applies pressure to it by using a die or a roller, so that the blank is gradually deformed, thereby obtaining a part with required shape and size. In the spinning process, the auxiliary shaft as a key component, its machining precision and quality directly affect the performance and reliability of the final product.

[0003] The traditional spinning machine auxiliary shaft processing faces many challenges in the auxiliary shaft clamping link. In the early stage, simple manual clamping devices are often used, such as ordinary three-jaw chucks. The operator needs to manually tighten the chuck jaws to fix the auxiliary shaft. This way not only consumes manpower and time, but also the clamping precision completely depends on the experience and skills of the operator. Due to the uncertainty of manual operation, it is difficult to ensure the consistency of each clamping, which leads to the eccentricity of the auxiliary shaft in the machining process. The dimensional accuracy error of the machined auxiliary shaft can reach ±0.5mm, which seriously affects the product quality. In batch production, such precision fluctuation will lead to a large number of waste products, increasing the production cost.

[0004] With the improvement of the precision requirement of manufacturing industry, some semi-automatic clamping devices have emerged. These devices, although partially realize mechanized operation, for example, use hydraulic or pneumatic driven chucks, still have obvious defects. Most of them can only clamp the auxiliary shaft from a single direction or a limited number of directions. In the spinning process, the auxiliary shaft rotates at high speed and bears strong centrifugal force and cutting force. The single direction clamping method is difficult to provide enough restraint force to balance these external forces, and the auxiliary shaft is prone to displacement or shaking. For some slender shaft auxiliary shafts, this phenomenon is more obvious, which may lead to problems such as vibration marks, size deviation on the machined surface, increase the surface roughness of the product, and the shape accuracy and position accuracy are difficult to meet the requirements of high-end manufacturing.

[0005] Therefore, we propose a spinning machine auxiliary shaft processing mechanism. The device applies clamping force to the auxiliary shaft from multiple directions at the same time through four friction rollers with different rotation directions, forming a stable clamping system that can effectively resist various external forces in the machining process, ensuring that the auxiliary shaft remains stable under high-speed rotation and strong cutting conditions, and improving the reliability of the machining process and the product qualification rate. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a spinning machine auxiliary shaft processing mechanism, and the device is through four different rotating direction's friction roller from multiple directions to the auxiliary shaft exerted clamping force simultaneously, forms a stable clamping system, can effectively resist various external force in the processing process, ensures that the auxiliary shaft always keeps stable under the condition of high -speed rotation and strong cutting, has improved the reliability of processing process and product qualification rate.

[0007] The utility model adopts the technical scheme as follows:

[0008] A spinning machine auxiliary shaft processing mechanism, including spinning machine body, be provided with the clamping assembly for clamping work piece on spinning machine body,

[0009] The clamping assembly includes two sets of telescopic rotating components arranged on the spinning machine body, each set of the telescopic rotating component is provided with a hollow shell, a plurality of through holes, a plurality of first connecting grooves, a plurality of rotating grooves and a plurality of fitting grooves are formed in one side of the hollow shell, a movable rod is arranged in the through hole, a connecting plate is arranged on the outer side of the movable rod and moves in the first connecting groove, the connecting plate is provided with meshing teeth, a first gear and a second gear are rotatably arranged in each rotating groove, the first gear is engaged with the second gear and the meshing teeth respectively, a fitting plate is arranged on the second gear, the fitting plate is matched with the fitting groove, and a friction roller is arranged on the fitting plate, the rotating directions of the friction rollers on the four fitting plates are different, and a pulling assembly is arranged in the hollow shell at one end of the plurality of movable rods.

[0010] Further, the telescopic rotating component includes an electric telescopic rod arranged on the spinning machine body, and a motor is mounted at the telescopic end of the electric telescopic rod, and the output end of the motor is connected with the hollow shell.

[0011] Further, the pulling assembly includes an electric push rod fixedly arranged in the hollow shell, and a movable disc is mounted at the telescopic end of the electric push rod, and one side of the movable disc is connected with the plurality of movable rods.

[0012] Further, a friction surface is arranged on the friction roller.

[0013] Further, two sets of connecting housings are arranged on the spinning machine body, a sliding groove is formed in each connecting housing, a threaded rod is arranged in the sliding groove, a threaded sleeve is sleeved on the threaded rod, a support is arranged on the threaded sleeve, and a spinning wheel is arranged on the support.

[0014] Further, the height of the fitting groove is matched with the height of the fitting plate and the friction roller.

[0015] The utility model discloses the technical effect as follows:

[0016] The operator places the shaft material to be processed at a predetermined position between the two hollow shells. At this time, the telescopic rotating assembly is started to clamp the shaft material, and after the clamping position is determined, the pulling assembly is started to push the movable rod to move axially in the through hole. The movable rod drives the connecting plate on the outside to move synchronously in the first connecting groove. Since the meshing teeth on the connecting plate are in close engagement with the first gear, the meshing teeth drive the first gear to rotate around its axis as the connecting plate moves. The rotation of the first gear drives the second gear to rotate in the opposite direction through the meshing action. The abutting plate connected to the second gear rotates accordingly, so that the abutting plate gradually enters the abutting groove, and finally the friction rollers on the abutting plate are in close contact with the surface of the shaft material. The four friction rollers apply friction force to the surface of the shaft in opposite directions, forming a full-range, uniform and stable clamping force to firmly fix the shaft at the center position. During the high-speed rotation of the shaft driven by the main shaft of the spinning machine body, the multi-directional clamping forces balance and restrict each other, effectively resisting the interference forces such as centrifugal force and cutting force generated during processing, so that the shaft always maintains stability under the conditions of high-speed rotation and strong cutting, and phenomena such as deviation and shaking do not occur, thereby ensuring the processing precision and surface quality. After the processing process is completed, the electric push rod motor of the pulling assembly is reversed, the push rod is retracted, the movable rod is reversely moved, and the friction rollers are separated from the shaft. Subsequently, the telescopic rotating assembly is actuated again to move the hollow shells according to the predetermined program, and the operator can conveniently take out the processed shaft to complete the entire processing process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the whole utility model;

[0018] Figure 2 is a schematic diagram of the structure of the hollow shell in the utility model;

[0019] Figure 3 is a schematic diagram of the structure of the abutting plate in the utility model;

[0020] Figure 4 is a schematic diagram of the structure of the spinning wheel in the utility model.

[0021] In the drawings, the components represented by each reference numeral are listed as follows:

[0022] 1, spinning machine body; 2, hollow shell; 3, through hole; 4, first connecting groove; 5, rotating groove; 6, abutting groove; 7, movable rod; 8, connecting plate; 9, meshing tooth; 10, first gear; 11, second gear; 12, abutting plate; 13, friction roller; 14, electric telescopic rod; 15, motor; 16, movable disc; 17, connecting shell; 18, threaded rod; 19, threaded sleeve; 20, spinning wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the utility model more clearly, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model and does not strictly limit the protection scope of the utility model specifically requested.

[0024] As Figures 1-4 Indicated, the utility model adopts the technical scheme specifically as follows: a spinning machine auxiliary shaft machining mechanism, including spinning machine body 1, spinning machine body 1 is provided with the clamping assembly for clamping workpiece on it;

[0025] Clamping assembly includes two sets of telescopic rotating assemblies arranged on spinning machine body 1, hollow housing 2 is arranged on each telescopic rotating assembly, a plurality of through holes 3, a plurality of first connecting grooves 4, a plurality of rotating grooves 5 and a plurality of fitting grooves 6 are formed in one side of hollow housing 2, movable rod 7 is arranged in the inside of through hole 3, connecting plate 8 is arranged on the outside of movable rod 7 and moves in first connecting groove 4, engaging tooth 9 is arranged on connecting plate 8, first gear 10 and second gear 11 are rotatably arranged in each rotating groove 5, first gear 10 is engaged with second gear 11 and engaging tooth 9 respectively, and fitting plate 12 is arranged on second gear 11, fitting plate 12 is matched with fitting groove 6, and friction roller 13 is arranged on fitting plate 12, the rotating directions of friction roller 13 on four fitting plates 12 are different, and a plurality of movable rods 7 are provided with pulling assembly arranged in the inside of hollow housing 2 at one end.

[0026] Among them, telescopic rotating assembly includes electric telescopic rod 14 arranged on spinning machine, motor 15 is installed at the telescopic end of electric telescopic rod 14, the output end of motor 15 is connected with hollow housing 2, hollow housing 2 is moved for clamping by electric telescopic rod 14, and spinning is carried out by rotating hollow housing 2 by motor 15.

[0027] Meanwhile, pulling assembly includes electric push rod fixedly arranged in the inside of hollow housing 2, movable disc 16 is installed at the telescopic end of electric push rod, movable disc 16 is connected with a plurality of movable rods 7 at one side, movable disc 16 is moved by electric push rod, so that a plurality of movable rods 7 are moved.

[0028] The height of fitting groove 6 is matched with the height of fitting plate 12 and friction roller 13, when fitting plate 12 enters fitting groove 6, material is just in contact with one side of hollow housing 2 and friction roller 13.

[0029] Friction surface is arranged on friction roller 13, the friction force is improved by friction surface, and the fixing effect is improved.

[0030] The spinning machine body 1 is provided with two groups of connecting housings 17, each of which is provided with a sliding groove, a threaded rod 18 is arranged in the sliding groove, a threaded sleeve 19 is arranged on the threaded rod 18, a support is arranged on the threaded sleeve 19, and a spinning wheel 20 is arranged on the support.

[0031] During spinning, the spinning wheel 20 is used for spinning, the threaded rod 18 is rotated to drive the support to move the spinning wheel 20 to spin.

[0032] It should be noted that the structure and working principle of the spinning machine body 1 are prior art, and will not be described in detail here.

[0033] The working principle of the utility model is as follows: the operator places the shaft material to be processed between the two hollow housings 2 at a predetermined position. At this time, the telescopic rotating assembly is started to clamp the shaft material, after the clamping position is determined, the pulling assembly is started, the movable rod 7 is pushed to move axially in the through hole 3, and the movable rod 7 drives the connecting plate 8 on the outside to move synchronously in the first connecting groove 4. Because the meshing teeth 9 on the connecting plate 8 are closely engaged with the first gear 10, with the movement of the connecting plate 8, the meshing teeth 9 drive the first gear 10 to rotate around its axis. The rotation of the first gear 10 drives the second gear 11 to rotate reversely through the meshing effect, the abutting plate 12 connected to the second gear 11 rotates, the abutting plate 12 gradually enters the abutting groove 6, and finally the friction roller 13 on the abutting plate 12 is in close contact with the surface of the shaft material. The four friction rollers 13 apply friction force to the surface of the shaft in opposite directions, form a full-range, uniform and stable clamping force, and firmly fix the shaft at the center position. During the high-speed rotation of the shaft driven by the main shaft of the spinning machine body 1, the multi-directional clamping forces balance and restrict each other, effectively resist the interference forces such as centrifugal force and cutting force generated during processing, ensure that the shaft always remains stable under the conditions of high-speed rotation and strong cutting, and no deviation and shaking occurs, so as to ensure the processing precision and surface quality. After the processing procedure is completed, the electric push rod motor 15 of the pulling assembly reverses, the push rod retracts, drives the movable rod 7 to move reversely, and separates the friction roller 13 from the shaft. Subsequently, the telescopic rotating assembly acts again, moves the hollow housing 2 according to the predetermined program, the operator can conveniently take out the processed shaft, and the whole processing process is completed.

[0034] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A spinning machine sub-shaft machining mechanism, comprising a spinning machine body (1), a clamping assembly for clamping a workpiece is arranged on the spinning machine body (1); characterized in that The clamping assembly comprises two sets of telescopic rotating assemblies arranged on the spinning machine body (1), a hollow shell (2) is arranged on each set of telescopic rotating assemblies, a plurality of through holes (3), a plurality of first connecting grooves (4), a plurality of rotating grooves (5) and a plurality of fitting grooves (6) are arranged on one side of the hollow shell (2), a movable rod (7) is arranged inside the through hole (3), a connecting plate (8) is arranged on the outside of the movable rod (7) and moves in the first connecting groove (4), the connecting plate (8) is provided with a meshing tooth (9), a first gear (10) and a second gear (11) are rotatably arranged in each rotating groove (5), the first gear (10) is engaged with the second gear (11) and the meshing tooth (9) respectively, the second gear (11) is provided with a fitting plate (12), the fitting plate (12) is matched with the fitting groove (6), and the fitting plate (12) is provided with a friction roller (13), the friction rollers (13) on the four fitting plates (12) have different rotating directions, and a pulling assembly is arranged at one end of the movable rod (7) inside the hollow shell (2).

2. A spinning machine counter shaft machining mechanism according to claim 1, characterized in that: The telescopic rotating assembly comprises an electric telescopic rod (14) arranged on the spinning machine body (1), a motor (15) is arranged at the telescopic end of the electric telescopic rod (14), and the output end of the motor (15) is connected with the hollow shell (2).

3. The spinning machine counter shaft machining mechanism according to claim 1, characterized in that: The pulling assembly comprises an electric push rod fixedly arranged inside the hollow shell (2), a movable disc (16) is arranged at the telescopic end of the electric push rod, and one side of the movable disc (16) is connected with a plurality of movable rods (7).

4. The spinning machine counter shaft machining mechanism according to claim 1, characterized in that: A friction surface is arranged on the friction roller (13).

5. The spinning machine counter shaft machining mechanism according to claim 1, characterized in that: Two sets of connecting housings (17) are arranged on the spinning machine body (1), a sliding groove is arranged on each connecting housing (17), a threaded rod (18) is arranged inside the sliding groove, a threaded sleeve (19) is sleeved on the threaded rod (18), a support is arranged on the threaded sleeve (19), and a spinning wheel (20) is arranged on the support.

6. A spinning machine counter shaft machining mechanism according to claim 1, characterized in that: The height of the fitting groove (6) matches the height of the fitting plate (12) and the friction roller (13).

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