A tool for controlling the thickness of a Halbach magnetic assembly

Abstract

This invention provides a fixture for controlling the adhesive thickness of Heilbeck magnetic components. The mounting base includes a station, a push rod moving mechanism, and a pressure rod moving mechanism. The station is used to place a fixture plate with a placement slot for holding the magnetic components. The magnetic components include a fixed magnet and a movable magnet, with adhesive dots positioned between them. The push rod moving mechanism includes a first drive unit and a push rod. The first drive unit drives the push rod to move the movable magnet along the placement slot, closer to the fixed magnet, and controls the adhesive dot spacing between the movable and fixed magnets. The pressure rod moving mechanism includes a second drive unit, an elastic element, a primary pressure rod, and a secondary pressure rod. The length of the primary pressure rod is greater than the length of the secondary pressure rod. The second drive unit drives the primary pressure rod to pre-press and fix the fixed magnet, preventing it from being sucked away. The second drive unit also drives the primary and secondary pressure rods to apply pressure to the fixed magnet and the movable magnet, respectively. This fixture is used to control the adhesive thickness and improve the quality of the magnetic components.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to a tooling for controlling the adhesive thickness of Heilbeck magnetic components. Background Technology

[0002] Heilbeck magnetic components, due to their unique magnetic field characteristics, are widely used in 3C electronic devices, medical devices (such as MRI machines), motors, generators, and many other fields. Magnetic components are formed by bonding several magnets together. In traditional assembly methods, flat-end push rods are typically used to push the magnets, along with a limiting structure for bonding assembly. However, due to the mutual attraction between the magnets inside the magnetic component, the magnetic force causes a sudden decrease in the distance between the magnets, resulting in a significant thinning of the adhesive. This traditional method makes it difficult to precisely control the adhesive thickness, thus affecting the quality and performance of the finished magnetic component.

[0003] Therefore, the applicant intends to propose a tooling for controlling the adhesive thickness of Heilbeck magnetic components to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for controlling the adhesive thickness of Heilbeck magnetic components. The tooling controls the distance between the movable magnet and the fixed magnet, thereby ensuring the thickness of the adhesive between the movable magnet and the fixed magnet and improving the bonding quality of the magnetic components.

[0005] To achieve the above objectives, the solution of this utility model is: a tooling for controlling the adhesive thickness of Heilbeck magnetic components, including a mounting base, magnetic components, a jig plate, a push rod moving mechanism, and a pressure rod moving mechanism;

[0006] The mounting base is equipped with a work station, a push rod moving mechanism, and a pressure rod moving mechanism;

[0007] The workstation is used to place a fixture plate, and the fixture plate is provided with a placement slot for placing a magnetic component; the magnetic component includes a fixed magnet and a movable magnet, and an adhesive dot is provided between the fixed magnet and the movable magnet.

[0008] The push rod moving mechanism includes a first driving part and a push rod. The first driving part is fixedly connected to one end of the push rod, and the other end of the push rod is a gripper. The gripper holds the movable magnet. The first driving part drives the push rod to move the movable magnet along the placement groove, close to the fixed magnet, and controls the dispensing distance between the movable magnet and the fixed magnet.

[0009] The pressure bar moving mechanism includes a second driving unit, an elastic element, a primary pressure bar, and a secondary pressure bar. The length of the primary pressure bar is greater than the length of the secondary pressure bar. The second driving unit is connected to the primary and secondary pressure bars through the elastic element. The primary pressure bar corresponds to the fixed magnet, and the secondary pressure bar corresponds to the movable magnet. The second driving unit drives the primary pressure bar to pre-press and fix the fixed magnet to prevent the fixed magnet from being attracted away by the movable magnet. The second driving unit drives the primary and secondary pressure bars to apply pressure to the fixed magnet and the movable magnet respectively, pressing the magnetic assembly together.

[0010] Furthermore, the push rod is made of magnetic material to enhance the gripping force on the moving magnet.

[0011] Furthermore, the gripper is a U-shaped wrap-around clamp, with the two arms of the U-shaped wrap-around clamp holding the movable magnet. The bottom of the placement groove is provided with a boss, which is used to support the magnetic component. The two side walls of the boss and the two side walls of the placement groove respectively form guide grooves, which are used to guide the two arms of the U-shaped wrap-around clamp as they move along the placement groove.

[0012] Furthermore, each of the two arms is equipped with a magnet, which generates a radial attraction between the push rod and the movable magnet, thereby enhancing the gripping force on the movable magnet.

[0013] Furthermore, the elastic element includes a fixing element, a primary spring, and a secondary spring. The stiffness coefficient of the primary spring is less than that of the secondary spring. The fixing element is provided with blind holes for installing the primary spring and the secondary spring, respectively. One end of the primary spring is connected to the bottom of the blind hole, and the other end of the spring is connected to the primary pressure rod. One end of the secondary spring is connected to the bottom of the blind hole, and the other end of the secondary spring is connected to the secondary pressure rod.

[0014] Furthermore, the fixture plate is provided with a foolproof magnet, which is used to attract and fix the magnet to keep it stationary.

[0015] Furthermore, the mounting base is provided with a heating assembly, which includes a heating element and a heat-conducting element. The heating element is connected to the heat-conducting element, and the heat-conducting element abuts against the magnetic component. The heat from the heating element is conducted to the magnetic component through the heat-conducting element, causing the adhesive of the magnetic component to cure after being heated.

[0016] Furthermore, the heat-conducting component comprises a primary pressure bar and a secondary pressure bar, the second driving part is connected to the heating component, the heating component is connected to the primary pressure bar and the secondary pressure bar through an elastic component, and the heat of the heating component is conducted to the magnetic assembly through the elastic component, the primary pressure bar and the secondary pressure bar.

[0017] Furthermore, the second drive unit includes a primary cylinder and a secondary cylinder. The mounting base is fixedly connected to the primary cylinder, and the primary cylinder is fixedly connected to the secondary cylinder. The secondary cylinder is connected to the primary pressure rod and the secondary pressure rod through an elastic element. The primary cylinder drives the secondary cylinder to drive the primary pressure rod to pre-press and fix the fixed magnet. The secondary cylinder drives the primary pressure rod and the secondary pressure rod to apply pressure to the fixed magnet and the movable magnet respectively, thus pressing the magnetic assembly together.

[0018] Furthermore, the jig plate at the bottom of the magnetic component has a through hole, through which the rod passes to lift the magnetic component, thus completing the material removal of the magnetic component.

[0019] The advantages of adopting the above scheme are as follows: the first-stage pressure rod pre-presses the fixed magnet to prevent the fixed magnet from being attracted away by the moving magnet; the push rod's gripper holds the moving magnet to prevent the moving magnet from being attracted away by the fixed magnet; then the push rod pushes the moving magnet closer to the fixed magnet, so that a gap is formed between the two to accommodate the glue, ensuring the glue thickness, thereby improving the bonding quality of the magnetic components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 A schematic diagram of the fixture plate and magnetic assembly;

[0022] Figure 3 for Figure 2 A cross-sectional schematic diagram;

[0023] Figure 4 This is a schematic diagram of a portion of the structure of this utility model;

[0024] Figure 5 This is a schematic diagram of a portion of the structure of this utility model;

[0025] Figure 6 This is a schematic diagram of a portion of the structure of this utility model;

[0026] Figure 7 This is a schematic diagram of the pre-compression process in an embodiment of this utility model;

[0027] Figure 8 This is a schematic diagram of the bonding process in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the pressure application process in an embodiment of this utility model.

[0029] Label Explanation:

[0030] 1. Magnetic assembly; 11. Movable magnet; 12. Fixed magnet;

[0031] 2. Mounting base; 3. Workstation;

[0032] 4. Fixture plate; 41. Placement slot; 411. Boss; 412. Guide slot; 42. Foolproof magnet; 43. Through hole;

[0033] 5. Push rod moving mechanism; 51. First drive unit; 52. Push rod; 521. U-shaped encircling clamp; 522. Support arm; 523. Hand;

[0034] 6. Pressure bar moving mechanism; 61. Second drive unit; 611. First stage cylinder; 612. Second stage cylinder; 62. Elastic element; 63. First stage pressure bar; 64. Second stage pressure bar;

[0035] 7. Heating assembly; 71. Heating element; 72. Heat-conducting element. Detailed Implementation

[0036] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] It should be noted that the terms "first," "second," "level one," and "level two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] It is important to understand that the terms "connection" and similar terms used should be interpreted broadly, referring to direct connections or indirect connections through intermediaries.

[0039] This utility model provides a tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly 1, including a mounting base 2, a magnetic assembly 1, a fixture plate 4, a push rod moving mechanism 5, and a pressure rod moving mechanism 6. The mounting base 2 is provided with a work station 3, the push rod moving mechanism 5, and the pressure rod moving mechanism 6.

[0040] Workstation 3 is used to place fixture plate 4, mainly for reference. Figure 2 The fixture plate 4 is provided with a placement groove 41 for placing the magnetic component 1; the magnetic component 1 includes a fixed magnet 12 and a movable magnet 11, and an adhesive dot is provided between the fixed magnet 12 and the movable magnet 11.

[0041] Main Reference Figure 4 and Figure 5 The push rod moving mechanism 5 includes a first driving part 51 and a push rod 52. The first driving part 51 is fixedly connected to one end of the push rod 52, and the other end of the push rod 52 is a gripper 523. The gripper 523 holds the movable magnet 11. The first driving part 51 drives the push rod 52 to move the movable magnet 11 along the placement groove 41, close to the fixed magnet 12, and controls the dispensing distance between the movable magnet 11 and the fixed magnet 12.

[0042] The lever moving mechanism 6 includes a second drive unit 61, an elastic element 62, a primary lever 63, and a secondary lever 64, mainly referred to as... Figure 6and Figure 9 The length of the first-stage pressure rod 63 is greater than the length of the second-stage pressure rod 64. The second drive unit 61 is connected to the first-stage pressure rod 63 and the second-stage pressure rod 64 through the elastic element 62. The first-stage pressure rod 63 corresponds to the fixed magnet 12, and the second-stage pressure rod 64 corresponds to the movable magnet 11. The second drive unit 61 drives the first-stage pressure rod 63 to pre-press and fix the fixed magnet 12 to prevent the fixed magnet 12 from being attracted away by the movable magnet 11. The second drive unit 61 drives the first-stage pressure rod 63 and the second-stage pressure rod 64 to apply pressure to the fixed magnet 12 and the movable magnet 11 respectively, pressing the magnetic assembly 1 together.

[0043] During tooling operation, firstly, the movable magnet 11 is manually installed onto the gripper 523 of the push rod 52, with the gripper 523 holding the magnet tightly. The fixed magnet 12 is placed in the placement slot 41, and glue is applied to the side wall of the fixed magnet 12 (at this point, the movable magnet 11 and the fixed magnet 12 are far apart and will not attract each other magnetically). Next, refer to... Figure 7 The second drive unit 61 of the lever moving mechanism 6 drives the first-stage lever 63 to pre-press and fix the fixed magnet 12. Next, refer to... Figure 8 The first drive unit 51 of the push rod moving mechanism 5 drives the push rod 52 to move the movable magnet 11 along the placement groove 41. The movable magnet 11 approaches the fixed magnet 12 until only the glue dot distance remains between the movable magnet 11 and the fixed magnet 12. At this point, the first drive unit 51 stops driving. It should be noted that at this time, the movable magnet 11 is held by the clamping force of the gripper 523, and the fixed magnet 12 is pressed by the first-stage pressure rod 63. The movable magnet 11 will not be suddenly pulled closer by the magnetic attraction of the fixed magnet 12, and the fixed magnet 12 will not be displaced due to the magnetic attraction of the movable magnet 11. This ensures that there is always a gap required for the glue between the movable magnet 11 and the fixed magnet 12, guaranteeing the glue thickness. Next, refer to Figure 9 The second drive unit 61 drives the first-stage pressure rod 63 and the second-stage pressure rod 64 to apply pressure to the fixed magnet 12 and the movable magnet 11 respectively, further pressing the magnetic assembly 1. It should be noted that the innovative design of the elastic element 62 enables one drive unit to drive the first-stage pressure rod 63 to pre-press the fixed magnet 12, and then drive the first-stage pressure rod 63 and the second-stage pressure rod 64 to jointly apply pressure to the magnetic assembly 1. The integrated design simplifies the equipment structure.

[0044] The gripper 523 of the push rod 52 holds the movable magnet 11 to prevent it from being attracted by the fixed magnet 12; the push rod 52 then pushes the movable magnet 11 closer to the fixed magnet 12, so that a gap is formed between the two to accommodate the glue. In order to further enhance the gripping force of the gripper 523 on the movable magnet 11, the push rod 52 is preferably made of magnetic material.

[0045] Main Reference Figure 5 The gripper 523 is a U-shaped wraparound clamp 521, and the two arms 522 of the U-shaped wraparound clamp 521 hold the movable magnet 11. (Main reference) Figure 3 and Figure 7 The bottom of the placement groove 41 is provided with a boss 411, which is used to support the magnetic component 1. The two side walls of the boss 411 form guide grooves 412 between the two side walls of the placement groove 41, respectively. The guide grooves 412 are used to guide the two arms 522 of the U-shaped circumferential clamp 521 when they move along the placement groove 41.

[0046] The two arms 522 are each equipped with a magnet, which generates a radial attraction between the push rod 52 and the movable magnet 11, thereby enhancing the clamping force on the movable magnet 11.

[0047] The elastic element 62 includes a fixing element, a primary spring, and a secondary spring. The fixing element has blind holes for mounting the primary and secondary springs. One end of the primary spring is connected to the bottom of the blind hole, and the other end is connected to a primary pressure rod 63. One end of the secondary spring is connected to the bottom of the blind hole, and the other end is connected to a secondary pressure rod 64. The stiffness coefficient of the primary spring is smaller than that of the secondary spring to prevent excessive force exerted by the primary pressure rod 63 on the fixed magnet 12 when the second driving unit 61 drives the primary pressure rod 63 and the secondary pressure rod 64 to apply pressure to the fixed magnet 12 and the movable magnet 11, respectively, thus avoiding damage to the surface of the fixed magnet 12.

[0048] The fixture plate 4 is equipped with a foolproof magnet 42, for reference. Figure 2 The foolproof magnet 42 is used to attract and fix the magnet 12 to keep it stationary.

[0049] In one embodiment of this application, the mounting base 2 is provided with a heating assembly 7, which includes a heating element 71 and a heat-conducting element 72. The heating element 71 is connected to the heat-conducting element 72, and the heat-conducting element 72 abuts against the magnetic component 1. The heat from the heating element 71 is conducted to the magnetic component 1 through the heat-conducting element 72, so that the adhesive of the magnetic component 1 is cured after being heated.

[0050] Main Reference Figure 6 The heat-conducting element 72 consists of a primary pressure rod 63 and a secondary pressure rod 64. The second drive unit 61 is connected to the heating element 71. The heating element 71 is connected to the primary pressure rod 63 and the secondary pressure rod 64 through the elastic element 62. The heat from the heating element 71 is conducted to the magnetic assembly 1 through the elastic element 62, the primary pressure rod 63 and the secondary pressure rod 64. This application embeds the heating assembly 7 into the design, simplifying the device structure.

[0051] To further improve the operational accuracy of the lever moving mechanism 6, the second drive unit 61 includes a primary cylinder 611 and a secondary cylinder 612. The mounting base 2 is fixedly connected to the primary cylinder 611, and the primary cylinder 611 is fixedly connected to the secondary cylinder 612. The secondary cylinder 612 is connected to the primary lever 63 and the secondary lever 64 via an elastic element 62. The primary cylinder 611 drives the secondary cylinder 612 to drive the primary lever 63 to pre-press and fix the fixed magnet 12. The secondary cylinder 612 drives the primary lever 63 and the secondary lever 64 to apply pressure to the fixed magnet 12 and the moving magnet 11 respectively, pressing the magnetic assembly 1 together. The two pressing strokes are controlled by different cylinders, allowing independent control of pressure and speed for each pressing stroke.

[0052] refer to Figure 3 The jig plate 4 at the bottom of the magnetic component 1 is provided with a through hole 43. When the magnetic component 1 is bonded and cured, a rod is used to push up the magnetic component 1 through the through hole 43 to complete the material removal of the magnetic component 1.

[0053] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A tooling for controlling the adhesive thickness of Heilbeck magnetic components, characterized in that: Includes mounting base, magnetic assembly, jig plate, push rod moving mechanism and pressure rod moving mechanism; The mounting base is equipped with a work station, a push rod moving mechanism, and a pressure rod moving mechanism; The workstation is used to place a fixture plate, and the fixture plate is provided with a placement slot for placing a magnetic component; the magnetic component includes a fixed magnet and a movable magnet, and an adhesive dot is provided between the fixed magnet and the movable magnet. The push rod moving mechanism includes a first driving part and a push rod. The first driving part is fixedly connected to one end of the push rod, and the other end of the push rod is a gripper. The gripper holds the movable magnet. The first driving part drives the push rod to move the movable magnet along the placement groove, close to the fixed magnet, and controls the dispensing distance between the movable magnet and the fixed magnet. The pressure bar moving mechanism includes a second driving unit, an elastic element, a primary pressure bar, and a secondary pressure bar. The length of the primary pressure bar is greater than the length of the secondary pressure bar. The second driving unit is connected to the primary and secondary pressure bars through the elastic element. The primary pressure bar corresponds to the fixed magnet, and the secondary pressure bar corresponds to the movable magnet. The second driving unit drives the primary pressure bar to pre-press and fix the fixed magnet to prevent the fixed magnet from being attracted away by the movable magnet. The second driving unit drives the primary and secondary pressure bars to apply pressure to the fixed magnet and the movable magnet respectively, pressing the magnetic assembly together.

2. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The push rod is made of magnetic material and is used to enhance the gripping force on the moving magnet.

3. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 2, characterized in that: The gripper is a U-shaped wrap-around clamp. The two arms of the U-shaped wrap-around clamp hold the movable magnet. The bottom of the placement groove is provided with a boss, which is used to support the magnetic component. The two side walls of the boss and the two side walls of the placement groove form guide grooves, which are used to guide the two arms of the U-shaped wrap-around clamp as they move along the placement groove.

4. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 3, characterized in that: The two arms are each equipped with a magnet, which generates a radial attraction between the push rod and the moving magnet, thereby enhancing the gripping force on the moving magnet.

5. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The elastic element includes a fixing element, a primary spring, and a secondary spring. The stiffness coefficient of the primary spring is smaller than that of the secondary spring. The fixing element is provided with blind holes for installing the primary spring and the secondary spring, respectively. One end of the primary spring is connected to the bottom of the blind hole, and the other end of the spring is connected to the primary pressure rod. One end of the secondary spring is connected to the bottom of the blind hole, and the other end of the secondary spring is connected to the secondary pressure rod.

6. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The fixture plate is equipped with a foolproof magnet, which is used to attract and fix the magnet, keeping it stationary.

7. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The mounting base is equipped with a heating assembly, which includes a heating element and a heat-conducting element. The heating element is connected to the heat-conducting element, and the heat-conducting element abuts against the magnetic component. The heat from the heating element is conducted to the magnetic component through the heat-conducting element, causing the adhesive of the magnetic component to cure after being heated.

8. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 7, characterized in that: The heat-conducting component consists of a primary pressure bar and a secondary pressure bar. The second driving part is connected to the heating element. The heating element is connected to the primary pressure bar and the secondary pressure bar through an elastic element. The heat from the heating element is conducted to the magnetic component through the elastic element, the primary pressure bar, and the secondary pressure bar.

9. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The second drive unit includes a primary cylinder and a secondary cylinder. The mounting base is fixedly connected to the primary cylinder, and the primary cylinder is fixedly connected to the secondary cylinder. The secondary cylinder is connected to the primary pressure rod and the secondary pressure rod through an elastic element. The primary cylinder drives the secondary cylinder to drive the primary pressure rod to pre-press and fix the fixed magnet. The secondary cylinder drives the primary pressure rod and the secondary pressure rod to apply pressure to the fixed magnet and the movable magnet respectively, thus pressing the magnetic assembly together.

10. The tooling for controlling the adhesive thickness of a Heilbeck magnetic assembly as described in claim 1, characterized in that: The jig plate at the bottom of the magnetic component has a through hole. The rod passes through the through hole to lift the magnetic component, thus completing the material removal of the magnetic component.

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