Uniform swinging mechanism for powder distribution of neodymium iron boron cylinder forming mold

Abstract

The utility model provides a uniform powder distribution swinging mechanism for a neodymium iron boron cylinder forming mold. The uniform powder distribution swinging mechanism consists of a bottom plate frame, a movable platform and a driving mechanism, the movable platform is transversely connected with the bottom plate frame in a sliding mode, transverse sliding columns are arranged on one side below a platform plate and matched with the bottom plate frame guide blocks, and idler wheels connected with the bottom plate frame in a rolling mode are arranged on the other side below the platform plate. And the clamping mechanism on the platform plate is used for fixing the forming mold. In the driving mechanism, a driving motor is installed on the bottom plate frame, an output shaft of the driving motor is connected with a rocker, the rocker is radially provided with an adjusting groove, a pivot shaft is slidably connected in the groove, a clamping mechanism of the pivot shaft can fix the position, and two ends of a connecting rod are hinged to the platform plate and the pivot shaft respectively. According to the uniform powder distribution swinging mechanism for the neodymium iron boron cylinder forming mold, the rocker is driven by the driving motor to rotate, the movable platform transversely reciprocates through the connecting rod, swinging operation on the mold is achieved, and therefore powder distribution uniformity is improved, and the problems that traditional manual mold swinging is low in efficiency and uneven in powder distribution are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of magnetic material production equipment, concretely relates to a neodymium iron boron cylinder forming die cloth powder uniform swing mechanism. BACKGROUND

[0002] Neodymium iron boron permanent magnet material as a kind of high-performance magnetic material, in modern industry many fields such as electronics, electrical, machinery, automobile etc. It has extremely extensive application. In the forming manufacturing process of neodymium iron boron cylinder product, the cloth powder uniformity in die plays a decisive role in the quality of final product.

[0003] When the traditional neodymium iron boron cylinder forming die is clothed, powder is often simply poured into die cavity, due to the flowability and accumulation characteristics of powder, uneven powder distribution is prone to occur. This uneven cloth powder will lead to inconsistent density of cylinder product after forming, and further affect its magnetic properties, mechanical strength and other key indicators. For example, local powder accumulation too much can make the pressure distribution uneven in the pressing process, and the product can appear internal cracks, delamination and other defects;And sparse powder area will cause the product density to be too low, and the magnetic performance cannot meet the expected requirement.

[0004] With the continuous improvement of the quality requirement of industry to neodymium iron boron cylinder product, an effective device or mechanism capable of improving the uniformity of die cloth powder is urgently needed. SUMMARY

[0005] The utility model solves the problems that: provide a kind of neodymium iron boron cylinder forming die cloth powder uniform swing mechanism, solve the problem of low efficiency of existing manual mold shaking.

[0006] The technical scheme adopted by the utility model to solve the above problems is as follows: a kind of neodymium iron boron cylinder forming die cloth powder uniform swing mechanism includes bottom plate frame, mobile platform, drive mechanism, the mobile platform is transversely slidably connected on bottom plate frame, clamping mechanism is provided on the mobile platform for clamping forming die, the drive mechanism is used to drive the transverse reciprocating motion of mobile platform;

[0007] The drive mechanism includes drive motor, rocker, connecting rod, the drive motor is fixedly installed on bottom plate frame, the rocker is fixedly connected with the output shaft of drive motor, the rocker is provided with adjusting groove along the radial direction of output shaft, the adjusting groove is slidably connected with pivot shaft, the pivot shaft is provided with clamping mechanism, for fixing pivot shaft in adjusting groove, the first end of connecting rod is hinged with mobile platform, and the second end is hinged with pivot shaft.

[0008] The application discloses a neodymium-iron-boron cylinder forming die cloth powder uniform swinging mechanism which is mainly composed of a bottom plate frame, a moving platform and a driving mechanism.

[0009] The driving mechanism comprises a driving motor which is fixedly installed on the bottom plate frame and is fixedly connected between an output shaft and a rocker. The rocker is provided with an adjusting groove which is radially arranged on the output shaft of the driving motor and is slidably connected with a pivot shaft. The pivot shaft is further provided with a special clamping mechanism which can accurately fix the position of the pivot shaft in the adjusting groove. The position of the pivot shaft in the adjusting groove can directly affect the sliding amplitude of the moving platform. The closer the position of the pivot shaft to the rotating axis of the driving motor, the smaller the sliding amplitude of the moving platform, so that the mechanism can adapt to the cloth powder requirements of various materials. Whether the material is fine powder with good fluidity or relatively rough material with poor fluidity, the ideal cloth powder uniformity effect can be achieved by accurately regulating the sliding amplitude of the moving platform.

[0010] Further, the clamping mechanism comprises a transverse backboard fixed on one side of the upper end surface of the moving platform in the transverse direction, a longitudinal backboard fixed on one side of the upper end surface of the moving platform in the longitudinal direction, and a plurality of clamping assemblies fixed on the other side of the upper end surface of the moving platform in the longitudinal direction. The transverse backboard and the longitudinal backboard provide accurate initial positioning reference for the forming die from the transverse direction and the longitudinal direction respectively, so that the die can quickly find the position when placed on the moving platform, and the random deviation and shaking of the die during initial placement are avoided. The plurality of clamping assemblies distributed in the longitudinal direction apply stable clamping force from the other side of the longitudinal direction, and form multi-point clamping together with the longitudinal backboard.

[0011] Further, the clamping assembly comprises a connecting block fixed on the other side of the moving platform in the longitudinal direction, and an elastic driving part installed on the connecting block, which is used for pressing the forming die placed on the moving platform to the longitudinal backboard. Compared with some rigid clamping structures, the design of the elastic driving part makes the installation and disassembly of the die more convenient.

[0012] Further, the clamping mechanism comprises a limiting portion at one end of the pivot shaft and a threaded portion at the other end of the pivot shaft, the threaded portion abuts against one side of the rocker through the adjusting groove, the threaded portion is threadedly connected with a fastener, the fish eye body and the gasket are sleeved on the pivot shaft between the fastener and the other side of the rocker, and the fish eye body and the gasket are moved to one side of the rocker by rotating the fastener, so that the pivot shaft is fixed in the adjusting groove. By arranging the limiting portion at one end of the pivot shaft and the threaded portion at the other end of the pivot shaft, and by cooperating the fastener, the gasket and the fish eye body through thread connection, the position of the pivot shaft in the adjusting groove is accurately fixed. The design integrates multiple functional components on the pivot shaft and the periphery thereof, so that the clamping mechanism is compact in structure and occupies less space, and meanwhile, the clamping mechanism can provide stable and reliable clamping force, so that the pivot shaft can be firmly fixed in the adjusting groove when bearing a large force and complex motion, and the pivot shaft will not be loosened or displaced, thereby ensuring the accuracy and stability of transmission between the driving mechanism and the moving platform.

[0013] Further, the fish eye body comprises a fish eye portion and a connecting hole penetrating through the fish eye portion, the second end of the connecting rod is provided with a fish eye bearing seat, the connecting hole is inserted and fixed on the pivot shaft, and the inner wall of the fish eye bearing seat is connected with the inner wall of the fish eye portion and can rotate relative to the axis of the pivot shaft and can be deflected relative to the axis of the pivot shaft. The inner wall of the fish eye bearing seat is connected with the inner wall of the fish eye portion and can rotate relative to the axis of the pivot shaft and can be deflected relative to the axis of the pivot shaft, which greatly increases the flexibility of the entire transmission connection. During the process that the driving motor drives the rocker to rotate and then drives the moving platform to reciprocate laterally through the connecting rod, due to factors such as manufacturing and assembly errors and force changes during the motion, the relative positions and angles between the components may change slightly. The rotatable and deflectable characteristics of the fish eye body can well adapt to these changes, so that the connection between the connecting rod and the pivot shaft will not be jammed or excessively worn due to these slight deviations.

[0014] Further, the width of the adjusting groove near the axis of the output shaft is larger than the width of the adjusting groove away from the axis of the output shaft. Since the width of the adjusting groove near the axis of the output shaft is larger, a more relaxed space condition is provided when the pivot shaft is installed. During the initial installation stage, the operator can more easily place the pivot shaft into the adjusting groove without the need for extremely accurate and difficult alignment operations, thereby greatly reducing the difficulty and complexity of installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a perspective view of the utility model hidden behind the bottom plate frame;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 Pivot shaft, rocker, connecting part of connecting rod of the utility model are shown in the sectional view.

[0019] Figure 5 Adjusting groove part of the utility model is shown in the front view.

[0020] Illustration: 1, base frame; 1.1, base; 1.2, side plate; 2, moving platform; 3, driving mechanism; 3.1, driving motor; 3.1.1, output shaft; 3.2, rocker; 3.2.1, adjusting groove; 3.3, connecting rod; 3.3.1, first end; 3.3.2, second end; 3.3.3, fish eye bearing seat; 4, forming die; 5, clamping mechanism; 5.1, transverse back plate; 5.2, longitudinal back plate; 5.3, clamping assembly; 5.3.1, connecting block; 5.3.2, elastic driving part; 6, pivot shaft; 6.1, limiting part; 6.2, threaded part; 6.3, fastener; 6.4, fish eye body; 6.4.1, fish eye part; 6.4.2, connecting hole; 6.5, gasket; 7, sliding mechanism; 7.1, sliding column; 7.2, rolling support assembly; 7.2.1, support block; 7.2.2, roller; 7.2.2A, precision bearing; 7.3, guide block; 7.3.1, matching hole. DETAILED DESCRIPTION

[0021] Before any embodiments of the utility model are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The utility model is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0022] And, in the disclosure of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model; in the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0023] Those skilled in the art should understand that the embodiments of the utility model shown in the above description and drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and described in the embodiments, and the implementation of the utility model can have any deformation or modification without departing from the principle.

[0024] The embodiments of the utility model will be further described below in combination with the drawings.

[0025] Please refer to Figures 1 to 2 A neodymium iron boron cylindrical forming die powder distributing uniform swinging mechanism mainly comprises a base frame 1, a moving platform 2 and a driving mechanism 3, the base frame 1 is used as the basic support structure of the whole mechanism, and provides stable support for the installation and operation of other components.

[0026] A clamping mechanism 5 is arranged on the upper end face of the moving platform 2, wherein the clamping mechanism 5 comprises a transverse rest plate 5.1 and a longitudinal rest plate 5.2.

[0027] The transverse rest plate 5.1 is fixed on the transverse side of the upper end face of the moving platform 2, and the longitudinal rest plate 5.2 is fixed on the longitudinal side, and the two provide preliminary positioning reference for the forming die 4 from the transverse and longitudinal directions respectively.

[0028] Please refer to Figure 3On the other side of the end surface of the moving platform 2, a plurality of clamping assemblies 5.3 are arranged at intervals in the longitudinal direction, each of which is composed of a connecting block 5.3.1 fixed on the other side of the moving platform 2 in the longitudinal direction and an elastic driving component 5.3.2 installed on the connecting block 5.3.1, which can press the forming mold 4 placed on the moving platform 2 towards the longitudinal side plate 5.2. The elastic driving component here can be a ball screw, which is a common standard screw on the market, including a main body screw-connected to the connecting plate in the direction towards the longitudinal side plate 5.2, with a spring installed inside, and a ball installed at the end thereof towards the longitudinal side plate 5.2, which is pressed towards the longitudinal side plate 5.2 by the spring to press the forming mold 4 towards the longitudinal side plate 5.2.

[0029] Under the moving platform 2, a corresponding sliding mechanism 7 is provided. The sliding mechanism 7 is composed of multiple parts, specifically as follows:

[0030] First, a sliding column 7.1 is arranged on one side under the moving platform 2 in the transverse direction; second, a rolling support assembly 7.2 is provided on the other side under the moving platform 2; third, a guide block 7.3 is installed on the bottom plate frame 1. Among them, the guide block 7.3 is provided with a matching hole 7.3.1 in the transverse direction, and the outer wall of the sliding column 7.1 and the matching hole 7.3.1 are in sliding fit.

[0031] The rolling support assembly 7.2 plays a unique role, which is mainly to ensure that the two sides of the moving platform 2 can maintain the same height under the cooperation of the sliding column 7.1 and the matching hole 7.3.1. Specifically, the rolling support assembly 7.2 includes a plurality of support blocks 7.2.1, which are fixed at intervals in the transverse direction at the lower end surface position on the other side under the moving platform 2. A roller 7.2.2 is rotatably connected to the lower part of each support block 7.2.1. The outer periphery of the roller 7.2.2 is in rolling fit with the rolling surface of the bottom plate frame 1.

[0032] Further, the roller 7.2.2 adopts a precision bearing 7.2.2A. The specific installation method is to firmly fix the inner ring of the precision bearing 7.2.2A on the support block 7.2.1 by fastener 6.3, and at the same time, the outer ring of the precision bearing 7.2.2A and the rolling surface of the bottom plate frame 1 form a rolling fit state.

[0033] Please refer to Figures 4 to 5 , the driving mechanism 3 provides power for the entire mechanism and drives it to run.

[0034] The driving motor 3.1 is stably fixed on the bottom frame 1, and the output shaft 3.1.1 of the driving motor 3.1 is rigidly connected with the rocker 3.2. The rocker 3.2 is provided with an adjusting groove 3.2.1 along the radial direction of the output shaft 3.1.1 of the driving motor 3.1, and the pivot shaft 6 is slidingly connected in the adjusting groove 3.2.1. One end of the pivot shaft 6 is provided with a limiting part 6.1 for limiting, and the other end is provided with a threaded part 6.2, the threaded part 6.2 passes through the adjusting groove 3.2.1 so that the limiting part 6.1 and one side of the rocker 3.2 abut against each other, and the threaded part 6.2 is screwed with a fastener 6.3 (the fastener 6.3 is a standard nut). The fish eye body 6.4 and the gasket 6.5 are sleeved on the pivot shaft 6 between the fastener 6.3 and the other side of the rocker 3.2, the fish eye body 6.4 comprises a unique fish eye part 6.4.1 and a connecting hole 6.4.2 penetrating the fish eye part 6.4.1, the second end 3.3.2 of the connecting rod 3.3 is provided with a fish eye bearing seat 3.3.3, the connecting hole 6.4.2 of the fish eye body 6.4 is tightly inserted and fixed on the pivot shaft 6, the inner wall of the fish eye bearing seat 3.3.3 is connected with the inner wall of the fish eye part 6.4.1, and can rotate around the axis of the pivot shaft 6 and produce a certain degree of yaw. At the same time, the adjusting groove 3.2.1 has a special structure design, that is, the groove width near the axis of the output shaft 3.1.1 is wider than the groove width away from the axis of the output shaft 3.1.1.

[0035] The bottom frame 1 comprises a base 1.1 and a side plate 1.2 vertically installed on the base 1.1, the driving motor 3.1 is fixedly installed on one side of the side plate 1.2, and the guide block 7.3 is fixedly installed on the other side of the side plate 1.2, the axis of the matching hole 7.3.1 of the guide block 7.3 is in the same plane with the axis of the output shaft 3.1.1 of the driving motor 3.1.

[0036] The above only describes the best embodiment of the present application, but cannot be understood as a limitation on the claims. The present application is not limited to the above embodiments, and the specific structure can be changed. Any change made within the protection scope of the independent claim of the present application is within the protection scope of the present application.

Claims

1. A neodymium iron boron cylindrical forming die cloth powder uniform swing mechanism, characterized in that: The utility model provides a kind of mould clamping mechanism, including base frame (1), mobile platform (2), drive mechanism (3), the mobile platform (2) is transversely slidingly connected on base frame (1), the mobile platform (2) is equipped with clamping mechanism (5) for clamping forming mould (4), the drive mechanism (3) is used to drive mobile platform (2) transverse reciprocating motion;The drive mechanism (3) includes drive motor (3.1), rocker (3.2), connecting rod (3.3), the drive motor (3.1) is fixedly installed on base frame (1), the rocker (3.2) is fixedly connected with the output shaft (3.1.1) of drive motor (3.1), rocker (3.2) is set with adjusting groove (3.2.1) along the radial direction of output shaft (3.1.1), the adjusting groove (3.2.1) is slidably connected with pivot shaft (6), the pivot shaft (6) is provided with clamping mechanism, for pivot shaft (6) is fixed in adjusting groove (3.2.1), the first end (3.3.1) of connecting rod (3.3) is hinged with mobile platform (2), second end (3.3.2) is hinged with pivot shaft (6).

2. The neodymium iron boron cylindrical forming mold cloth uniform swinging mechanism according to claim 1, characterized in that: The clamping mechanism (5) includes a lateral side of the upper end surface of the mobile platform (2) fixed transversely on the lateral side of the upper end surface of the mobile platform (2) fixed longitudinally, and a plurality of clamping assemblies (5.3) are fixed at intervals on the other longitudinal side of the upper end surface of the mobile platform (2).

3. The neodymium iron boron cylindrical forming mold cloth uniform swinging mechanism according to claim 2, characterized in that: The clamping assembly (5.3) includes a connecting block (5.3.1) fixed on the other longitudinal side of the mobile platform (2), and an elastic driving component (5.3.2) mounted on the connecting block (5.3.1), the elastic driving component (5.3.2) is used to press the forming mold (4) placed on the mobile platform (2) to the longitudinal side of the longitudinal side of the longitudinal side.

4. The neodymium iron boron cylindrical forming mold cloth uniform swinging mechanism according to claim 1, characterized in that: The clamping mechanism includes a limiting portion (6.1) at one end of the pivot shaft (6) and a threaded portion (6.2) at the other end of the pivot shaft (6), the threaded portion (6.2) passes through the adjusting groove (3.2.1) to make the limiting portion (6.1) abut against one side of the rocker (3.2), the threaded portion (6.2) is threadedly connected with a fastener (6.3), the fish eye body (6.4) and the gasket (6.5) are sleeved on the pivot shaft (6) between the fastener (6.3) and the other side of the rocker (3.2), by rotating the fastener (6.3) to move the fish eye body (6.4) and the gasket (6.5) to one side of the rocker (3.2), the pivot shaft (6) is fixed in the adjusting groove (3.2.1).

5. The neodymium iron boron cylindrical forming mold uniform powder distribution swinging mechanism according to claim 4, characterized in that: The fish eye body (6.4) includes a fish eye portion (6.4.1) and a connecting hole (6.4.2) penetrating the fish eye portion (6.4.1), the second end (3.3.2) of the connecting rod (3.3) is provided with a fish eye bearing seat (3.3.3), the connecting hole (6.4.2) is inserted and fixed on the pivot shaft (6), the inner wall of the fish eye bearing seat (3.3.3) is connected with the inner wall of the fish eye portion (6.4.1), and rotates compared with the axis of the pivot shaft (6), and deviates compared with the axis of the pivot shaft (6). ​ 6. The neodymium iron boron cylindrical forming mold cloth uniform swinging mechanism according to claim 1, characterized in that: The width of the adjustment groove (3.2.1) near the axis of the output shaft (3.1.1) is greater than the width of the adjustment groove (3.2.1) away from the axis of the output shaft (3.1.1).

Images