An automatic production material moving device for a non-magnetic permanent magnet pendulum

Abstract

The utility model discloses a kind of permanent magnet swing automatic production material moving device for non-magnetic permanent magnet swing, it is related to magnetic latching relay component automatic production equipment field, to solve under the non-magnetic state of permanent magnet, permanent magnet swing assembly is difficult to keep relative position stably in automatic material moving process, prone to displacement or falling problem.Elastic positioning mechanism includes insert, clamping piece and elastic piece;Insert is embedded in the both sides of material passing channel, two inserts are relatively mirror image, clamping piece is movably installed in insert, and the front side end of clamping piece is exposed to insert to contact and clamp magnet;Elastic piece is arranged in insert, and provides elastic pre-tightening force towards the middle of material passing channel to the clamping piece, to magnetically elastic clamping positioning.Elastic guiding clamping force can be formed to non-magnetic permanent magnet, actively restrict magnet in correct position, even in material moving device moving vibration or material passing channel guiding process, non-magnetic permanent magnet can be effectively prevented from falling from material passing channel.

Description

Technical Field

[0001] This utility model relates to the field of automatic production equipment for magnetic latching relay components, and in particular to an automatic production and material transfer device for a permanent magnet pendulum without magnetism. Background Technology

[0002] A magnetic latching relay is an automatic switch whose switching state transitions rely on the action of a permanent magnet. One of the core components of a magnetic latching relay is a permanent magnet pendulum, which is usually in the shape of an "I" and consists of two parallel iron plates, a permanent magnet placed between the iron plates, and a plastic shell that is injection molded to enclose the permanent magnet and part of the iron plates.

[0003] In the field of automated production of permanent magnet pendulums, a Chinese utility model patent (authorization announcement number: CN210758811U) discloses a tooling fixture and material transfer device for an automated production system of a magnetic latching relay permanent magnet pendulum. This device uses a tooling fixture with a clamping cavity to clamp iron sheets and permanent magnets, and utilizes a horizontal material transfer mechanism and a downward pressure material transfer mechanism to transfer the clamped components into an injection mold. This prior art relies on the premise that the permanent magnet itself possesses magnetism. Under this premise, the permanent magnet and the two iron sheets are attracted to each other due to magnetic attraction, naturally maintaining a stable relative position during the material transfer process, preventing displacement or scattering, thus ensuring assembly accuracy before entering the mold.

[0004] However, with the development of market demand, some customers require that permanent magnets be shipped unmagnetized to prevent the attraction of impurities such as iron filings from the environment during transportation and storage. Magnetization is then performed before installation. This requirement exposes significant shortcomings in the adaptability of existing production systems. When the permanent magnet is unmagnetized, the inherent magnetic attraction between the iron sheet and the magnet is lost. During the transfer of components to the mold cavity by the material handling device, the components need to pass through the material passage of the base. During movement, vibration, or turning, relative displacement can easily occur between the iron sheet and the magnet, potentially causing the iron sheet to detach from the fixture and fall directly. This not only leads to a severe decrease in product assembly accuracy and the generation of scrap, but also disrupts the automated production process and reduces production efficiency. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide an automatic production and material transfer device for a permanent magnet pendulum without magnetism, so as to solve the technical problem that the permanent magnet pendulum component is difficult to maintain a stable relative position and is prone to displacement or falling during the automatic material transfer process when the permanent magnet is in a non-magnetic state.

[0006] The technical solution of this utility model includes a base and a tooling fixture disposed on the base. The base has a material passage for the permanent magnet pendulum assembly to pass through. An elastic positioning mechanism is disposed on the base, which includes an insert, a clamping member, and an elastic member. The insert is embedded in both sides of the material passage, and the two inserts are arranged in a mirror image relative to each other. Their opposite inner front sides are shaped with a convex center and concave sides to form an "I" shape in the material passage, which includes an outer area for positioning the iron sheet and a middle area for the magnet to pass through. The clamping member is movably installed in the insert, and the front end of the clamping member is exposed outside the insert to contact and clamp the magnet. The elastic member is disposed inside the insert and provides an elastic preload to the clamping member toward the middle of the material passage to elastically clamp and position the magnet.

[0007] By adopting the above technical solution, the I-shaped material passage formed by the insert provides an accurate movement path for the two iron sheets and the magnet, ensuring the relative initial position accuracy of the components during movement. Then, the movable clamping component, together with the elastic pre-tightening force provided by the elastic component, can form a flexible guiding clamping force on the non-magnetic permanent magnet. This force replaces the original magnetic material's adsorption force, actively constraining the magnet in the correct position. Even during the movement vibration of the material transfer device or the guidance of the material passage, it can effectively prevent the non-magnetic permanent magnet from falling out of the material passage. In addition, the entire elastic positioning mechanism is embedded in the base and integrated with the material passage design, requiring no additional external space. It is compatible with existing tooling fixtures, horizontal material transfer mechanisms, and other structures, reducing the difficulty of modifying the existing production system.

[0008] In one possible design, the front end face of the clamping member is an inclined surface, and the inclined surfaces of the two clamping members are arranged opposite each other, so that a guide structure that is wider at the top and narrower at the bottom is formed between them.

[0009] The above design achieves several advantages. First, the top-wide and bottom-narrow guide structure forms a funnel-shaped inlet, which guides the non-magnetic permanent magnet as it initially enters the material passage. Even if the permanent magnet has a slight positional deviation, it can automatically return to the final clamping and positioning point through the guiding effect of the inclined surface, reducing the risk of jamming. Second, the inclined surface design makes the contact between the clamping component and the assembly a gradual and smooth process, rather than a direct rigid collision. This reduces the impact on the surface of the assembly and also reduces the wear of the clamping component itself.

[0010] In one possible design, the clamping element includes a plate portion located on the front side and a disk portion located on the rear side; the insert has a mounting cavity, and the disk portion is slidably accommodated in the mounting cavity; the elastic element is a spring, with its two ends abutting against the bottom of the mounting cavity and the rear end face of the disk portion, respectively.

[0011] With the above design, the sliding fit between the disc and the mounting cavity provides precise guidance for the movement of the clamping component, ensuring that it can only move smoothly in the preset direction, preventing deflection and jamming, thereby ensuring the consistency and stability of the clamping force; the disc provides a large, flat end face that contacts the spring, ensuring that the elastic force is applied evenly to the clamping component.

[0012] In one possible design, a pressing and transferring mechanism is also included; the pressing and transferring mechanism is located above the base and includes a pressing block that can move up and down, the pressing block pressing down the product in the tooling fixture through the material passage and sending it out.

[0013] With the above design, the pressing action of the pressure block and the clamping and positioning of the elastic positioning mechanism work together. During the pressing process, the elastic positioning mechanism continuously constrains the relative position of the non-magnetic permanent magnet and the iron sheet, while the pressure block ensures that the entire component moves along the axis of the material passage. The cooperation of the two can further ensure that the non-magnetic permanent magnet pendulum component can enter the mold cavity in the correct posture after being sent out of the material passage, avoiding the impact of material transfer posture deviation on the subsequent injection molding accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a structural schematic diagram of the base and elastic positioning mechanism of this utility model; Figure 4 This is an exploded view of the elastic positioning mechanism of this utility model; Among them, 1. base; 11. material passage; 111. outer area; 112. middle area; 2. tooling fixture; 3. elastic positioning mechanism; 31. insert; 311. mounting cavity; 32. clamping component; 321. plate part; 322. disc part; 323. inclined surface; 33. elastic component; 4. pressing and transferring mechanism; 41. pressing drive component; 42. pressing block; 51. iron sheet; 52. magnet. Detailed Implementation

[0015] like Figures 1 to 4 The illustrated automatic production and material transfer device for a non-magnetic permanent magnet pendulum includes a base 1, a tooling fixture 2, and an elastic positioning mechanism 3. The base 1 has an internal material passage 11 for the passage of semi-finished products. The semi-finished products include two iron sheets 51 and a non-magnetic magnet 52. The upper end of the material passage 11 connects to the cavity of the tooling fixture 2, and the lower end ultimately leads to the cavity of the injection mold.

[0016] The elastic positioning mechanism 3 is mounted on the base 1 and extends through the side wall of the material passage 11. This mechanism consists of inserts 31, clamping elements 32, and elastic elements 33. Two inserts 31 are provided for each material passage 11. These inserts are made of wear-resistant materials such as high-carbon steel or mold steel and are fixedly installed within the side walls of the material passage 11 in an embedded manner. The two inserts 31 are mirror images of each other, with their opposite inner front sides machined into a shape that is convex in the middle and concave on both sides. This makes the cross-section of the material passage 11 between them appear as an "I" shape. This "I" shape clearly divides the material into three areas: the outer areas 111 on both sides are used to precisely guide and position the two iron pieces 51 through, while the middle area 112 is dedicated to the passage of the magnet 52. This structure provides initial positioning of the components in physical space, ensuring the initial positioning accuracy of the semi-finished product.

[0017] The clamping member 32 is movably installed in a mounting hole inside the insert 31, with its front end (i.e., the plate portion 321) exposed on the inner side of the insert 31 for direct contact and clamping of the magnet. In a preferred embodiment, the front end face of the plate portion 321 is set as an inclined surface 323, such that the inclined surfaces 323 of the two clamping members 32 are arranged opposite each other, thereby forming a guide structure that is wider at the top and narrower at the bottom between them. This structure provides good guidance and centering when the magnet enters, allowing it to slide smoothly into the predetermined position.

[0018] The clamping member 32 also includes a disc portion 322 located on the rear side. Correspondingly, the insert 31 has a mounting cavity 311 communicating with the mounting hole, and the disc portion 322 is slidably accommodated in the mounting cavity 311. The disc portion 322 also prevents the entire clamping member 32 from detaching from the insert 31.

[0019] An elastic element 33 is disposed within the mounting cavity 311. In this embodiment, the elastic element 33 is preferably a spring. The two ends of the spring are securely abutted against the bottom of the mounting cavity 311 and the rear end face of the disc portion 322, respectively. The pre-compression of the spring continuously provides an elastic pre-tightening force to the clamping member 32 toward the center of the feed channel 11. This force acts directly on both sides of the magnet through the plate portion 321, thereby achieving stable, flexible, and elastic clamping and positioning of it.

[0020] The material transfer device in this embodiment also includes a pressing and transferring mechanism 4; the pressing and transferring mechanism 4 is disposed above the base 1. It mainly includes a pressing drive 41 and a pressing block 42 driven by the drive to move up and down. The pressing drive 41 can be a cylinder or an electric cylinder, and the position of the pressing block 42 corresponds vertically to the cavity of the tooling fixture 2 and the material passage 11 of the base 1.

[0021] Working principle: After the horizontal transfer mechanism (not shown in the figure) moves the fixture 2 and base 1, which hold the permanent magnet pendulum assembly, above the injection mold and positions them precisely, the downward transfer mechanism 4 begins to operate. The downward drive component 41 drives the downward block 42 to move downward, and the downward block 42 passes through the cavity of the fixture 2 and the material passage 11 of the base 1 in sequence. During this process, the two iron plates 51 enter the outer area 111 of the "I"-shaped channel, while the magnet 52, which is clamped in the middle, enters the middle area 112. When the magnet 52 passes the clamping component 32, it is constrained to the center position by the elastic clamping force of the plate portion 321 on both sides. In this way, even if the device vibrates or moves rapidly, the non-magnetic magnet will not shift or fall off the assembly, ensuring that the assembly is transferred to the injection mold cavity in a precise relative position, completing the automatic material transfer and mold insertion operation.

Claims

1. An automatic production and material transfer device for a permanent magnet pendulum without magnetism, comprising a base (1) and a tooling fixture (2) disposed on the base (1), wherein the base (1) is provided with a material passage (11) for the permanent magnet pendulum assembly to pass through, characterized in that: The base (1) is provided with an elastic positioning mechanism (3), which includes an insert (31), a clamping member (32) and an elastic member (33). The insert (31) is embedded in both sides of the feed channel (11). The two inserts are mirror images of each other, and their opposite inner front sides are convex in the middle and concave on both sides to form an "I" shape in the feed channel (11), which includes an outer area (111) for positioning the iron sheet (51) and a middle area (112) for the magnet (52) to pass through. The clamping member (32) is movably installed in the insert, and the front end of the clamping member (32) is exposed outside the insert to contact and clamp the magnet (52). The elastic element (33) is disposed inside the insert and provides an elastic preload to the clamping element (32) toward the center of the feed channel (11) for elastic clamping and positioning of the magnet (52).

2. The automatic production and transfer device for a non-magnetic permanent magnet pendulum as described in claim 1, characterized in that: The front end face of the clamping member (32) is an inclined surface (323). The inclined surfaces (323) of the two clamping members (32) are arranged opposite to each other, so that a guide structure with a wider top and a narrower bottom is formed between them.

3. The automatic production and transfer device for a non-magnetic permanent magnet pendulum according to claim 1 or 2, characterized in that: The clamping member (32) includes a plate portion (321) located on the front side and a disc portion (322) located on the rear side; the insert has an installation cavity (311) and the disc portion (322) is slidably accommodated in the installation cavity (311); the elastic member (33) is a spring, and its two ends abut against the bottom of the installation cavity (311) and the rear end face of the disc portion (322), respectively.

4. The automatic production and transfer device for a non-magnetic permanent magnet pendulum according to claim 1 or 2, characterized in that: It also includes a pressing and transferring mechanism (4); the pressing and transferring mechanism (4) is located above the base (1), and includes a pressing block (42) that can move up and down. The pressing block (42) performs the action of pressing the product in the tooling fixture (2) down through the material passage (11) and sending it out.

Images