Guiding tool for assembling Halbach magnetic circuit structure

Abstract

The utility model provides a guide tool for assembling a Halbach magnetic circuit structure, which comprises a first lifting mechanism, a guide plate, a guide push rod and a positioning plate, the positioning plate is provided with a positioning groove for positioning a main magnet, the guide plate is provided with a guide hole for placing a guide magnet, the guide plate is arranged above the positioning plate, and the guide push rod is arranged on the guide plate. The guide magnet in the guide hole is vertically aligned with an inner hole of the main magnet in the positioning groove, the guide push rod is arranged above the guide hole, the first lifting mechanism is connected with the guide push rod and drives the guide push rod to move downwards, the guide push rod can abut against the guide magnet in the guide hole to move downwards, and through the guide effect of the guide hole, the guide magnet in the guide hole can move downwards. The thrust of the guide push rod can overcome the repulsive force borne by the guide magnet, and the guide magnet can be smoothly pushed into the inner hole, so that the assembly difficulty is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of magnet processing technology, and specifically relates to a guide tool for assembling Helbeck magnetic circuit structures. Background Technology

[0002] Helbeck magnetic circuits offer multiple advantages, including magnetization and self-shielding. In particular, their magnetization capability can achieve magnetic strength or attraction several times greater than that of ordinary magnets of the same volume. Helbeck magnetic components, fabricated using this magnetic circuit structure, are widely used in magnetic attraction, motors, magnetic transmission, and scientific research. Currently, most Helbeck magnetic components are assembled by adhesive bonding multiple unipolar magnets with different magnetization directions according to the required magnetic circuit structure. The polarity of the main magnet alternates between N and S every one or several guide magnets. This structure is relatively optimal from a magnetic circuit principle perspective. However, a large number of independent magnets not only increases assembly difficulty but also leads to larger cumulative tolerances, affecting assembly accuracy.

[0003] To address the problems caused by the aforementioned magnetic circuit structure, a novel Heilbeck magnetic circuit structure has been designed, such as... Figure 1-3 As shown, its structure consists of a main magnet 1 and several guide magnets 2. The main magnet 1 is a multi-polar magnet, and the guide magnets 2 are unipolar magnets. The main magnet 1 has a through-hole 11, and the guide magnets 2 are embedded in the through-hole 11. This structure is equivalent to changing the existing main magnet from multiple independent unipolar magnets to a single multipolar magnet, so that the repulsive force between the main magnets becomes the repulsive force within a single magnet. Therefore, there is no repulsive force between main magnets of different polarities, which is beneficial for assembly. Furthermore, the number of magnets is reduced, avoiding the influence of accumulated tolerances, which is very beneficial for control precision, especially for magnets with complex shapes. However, when the guide magnet is first embedded in the through-hole, since the magnetic poles on both sides of the guide magnet have the same polarity as the magnetic poles on both sides of the top surface of the main magnet, there is still a repulsive force between the guide magnet and the main magnet, making it difficult to smoothly embed the guide magnet into the through-hole, and there is still a certain degree of assembly difficulty. Utility Model Content

[0004] The purpose of this invention is to provide a guide fixture for assembling Helbeck magnetic circuit structures, which overcomes the repulsive force experienced by the guide magnet when it is just inserted into the inner hole, and reduces the assembly difficulty.

[0005] To achieve the above objectives, this utility model provides a guide fixture for assembling a Heilbeck magnetic circuit structure, including a first lifting mechanism, a guide plate, a guide push rod, and a positioning plate. The positioning plate is provided with a positioning groove for positioning the main magnet, and the guide plate is provided with a guide hole for placing the guide magnet. The guide plate is positioned above the positioning plate, and the guide magnet in the guide hole is vertically aligned with the inner hole of the main magnet in the positioning groove. The guide push rod is positioned above the guide hole. The first lifting mechanism is connected to the guide push rod and drives the guide push rod to move downward, thereby pushing the guide magnet to embed into the inner hole of the main magnet.

[0006] Furthermore, the guide plate is also provided with a material trough and an adsorption magnet. The material trough and the adsorption magnet are respectively arranged on both sides of the guide hole. The material trough is connected to the guide hole. The material trough is equipped with a plurality of mutually adsorbing guide magnets. The adsorption magnet is fixedly arranged on the guide plate and adsorbs with the guide magnet in the guide hole. When the guide push rod pushes the guide magnet in the guide hole downward to embed into the inner hole of the main magnet and then returns upward to reset, the next guide magnet on the material trough is automatically adsorbed into the guide hole by the adsorption effect of the adsorption magnet.

[0007] Furthermore, the material trough is a horizontal trough, and the right end of the material trough is connected to the guide hole. The right side of the guide hole is provided with an installation groove for installing the adsorption magnet.

[0008] Furthermore, a cover plate is provided above the material trough, and the cover plate is placed on the left side of the guide hole.

[0009] Furthermore, the bottom and one side of the positioning plate are respectively provided with a second lifting mechanism and a first side pushing mechanism. The second lifting mechanism drives the positioning plate to move up and down to get closer to or away from the guide plate, and the first side pushing mechanism drives the positioning plate to move horizontally to be offset from or aligned with the guide plate.

[0010] Furthermore, the positioning plate is provided with a mounting position, on which a jig plate can be detachably mounted. The jig plate is provided with multiple positioning slots, and the guide plate is provided with multiple guide holes corresponding to the positioning slots. The number of guide push rods corresponds to the number of guide holes.

[0011] Furthermore, a mounting plate is provided below the positioning plate, the first side-pushing mechanism is mounted on the mounting plate, the positioning plate is mounted on the first side-pushing mechanism, and the second lifting mechanism is located below the mounting plate.

[0012] Furthermore, one side of the mounting position is provided with a side wall for the fixture plate to abut against, and the mounting plate is provided with a second side pushing mechanism on one side of the first side pushing mechanism. The second side pushing mechanism is driven to connect a push plate, and the push plate abuts against the other side of the fixture plate to position the fixture plate.

[0013] Furthermore, the first lifting mechanism, the second lifting mechanism, the first side push mechanism, and the second side push mechanism are all cylinders. The piston rod of the first lifting mechanism is provided with a lifting plate for connecting the guide push rod. The piston rod of the second lifting mechanism is connected to the mounting plate. The piston rods of the first side push mechanism and the second side push mechanism are respectively connected to the positioning plate and the push plate.

[0014] Furthermore, the bottom of the second lifting mechanism is provided with a base, and the two sides of the base are provided with a frame, and the guide plate and the first lifting mechanism are fixed on the frame.

[0015] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0016] The guide plate of this utility model is provided with a guide hole for placing a guide magnet, and the positioning plate is provided with a positioning groove for positioning the main magnet. The guide plate is located above the positioning plate. After the guide magnet and the main magnet are respectively installed into the guide hole and the positioning groove, the guide magnet is located above the inner hole of the main magnet. Then, the first lifting mechanism is activated to drive the guide push rod to descend. The guide push rod will push the guide magnet in the guide hole to move downward. Through the guiding effect of the guide hole, the pushing force of the guide push rod can overcome the repulsive force on the guide magnet, and the guide magnet can be smoothly pushed into the inner hole, thereby reducing the assembly difficulty. Attached Figure Description

[0017] Figure 1 A schematic diagram showing the fit between the guide magnet and the inner hole;

[0018] Figure 2 This is a schematic diagram of the structure of a Heilbeck magnetic assembly with a single guide magnet according to an embodiment of the present invention;

[0019] Figure 3 for Figure 2 AA cross-section view;

[0020] Figure 4 This is a schematic diagram of the structure of the guide tooling of this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the structure of the guide tooling of this utility model. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the structure of the guide tooling of this utility model. Figure 3 ;

[0023] Figure 7 This is a schematic diagram showing the upper and lower cooperation between the guide push rod and the guide plate of this utility model;

[0024] Figure 8 for Figure 7 Enlarged view of section A in the image;

[0025] Figure 9 This is a schematic diagram of the structure of the guide plate of this utility model;

[0026] Figure 10 This is a schematic diagram of the positioning plate of this utility model;

[0027] Figure 11 This is a schematic diagram of the Heilbeck magnetic assembly with two guide magnets according to an embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of the structure of the Heilbeck magnetic component according to another embodiment of the present invention.

[0029] Label Explanation:

[0030] 1. Main magnet; 11. Inner hole; 2. Guide magnet; 3. Iron sheet; 4. First lifting mechanism; 41. Lifting plate; 5. Guide plate; 51. Guide hole; 52. Material trough; 53. Adsorption magnet; 54. Extension plate; 55. Mounting slot; 56. Cover plate; 6. Guide push rod; 7. Positioning plate; 71. Positioning slot; 72. Mounting position; 73. Fixture plate; 8. Base; 81. Second lifting mechanism; 9. Mounting plate; 91. First side push mechanism; 92. Second side push mechanism; 93. Push plate; 10. Frame. Detailed Implementation

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] This utility model provides a guide fixture for assembling a Hellbeck magnetic circuit structure. The Hellbeck magnetic circuit structure for assembly consists of a main magnet 1 and one or more guide magnets 2. The Hellbeck magnetic circuit structure of one guide magnet 2 is as follows: Figure 2 As shown, the Heilbeck magnetic circuit structure of the two guiding magnets 2 is as follows: Figure 11 As shown, Figure 3 As shown, the main magnet 1 is a multipolar magnet with two opposite magnetic poles on both its top and bottom surfaces. The two corresponding magnetic poles on the top and bottom surfaces have opposite polarities. The main magnet 1 has a through-hole 11. The bottom surface of the main magnet 1 is glued to an iron sheet 3. A guide magnet 2 is embedded in the through-hole 11. The guide magnet 2 is a unipolar magnet, and the magnetic poles on both sides of the guide magnet 2 have the same polarity as the magnetic poles on both sides of the top surface of the main magnet 1. The shape of this Heilbeck magnetic assembly is not limited. In one embodiment, the shape of the Heilbeck magnetic assembly is as follows: Figure 4 and Figure 11 The rectangular shape shown is, in another embodiment, the shape of the Heilbeck magnetic component is as follows: Figure 12The circular shape shown indicates that the main magnet 1 is ring-shaped, which facilitates processing. Of course, in addition to rectangles and circles, Hellbeck magnetic components can also be ring-shaped or other shapes. The guide fixture of this invention can be applied to Hellbeck magnetic components of any shape.

[0033] like Figure 4-10 As shown, the guide fixture includes a first lifting mechanism 4, a guide plate 5, a guide push rod 6, and a positioning plate 7. The positioning plate 7 is provided with a positioning groove 71 for positioning the main magnet 1. The guide plate 5 is provided with a guide hole 51 for placing the guide magnet 2. The guide plate 5 is positioned above the positioning plate 7, and the guide magnet 2 in the guide hole 51 is vertically aligned with the inner hole 11 of the main magnet 1 in the positioning groove 71. The guide push rod 6 is positioned above the guide hole 51. The first lifting mechanism 4 is connected to the guide push rod 6, and the first lifting mechanism 4 can drive the guide push rod 6 to rise and fall.

[0034] During assembly, first, glue the bottom surface of the main magnet 1 to the iron sheet 3, then apply glue inside the inner hole 11, and then insert the main magnet 1 into the positioning groove 71. Next, insert the guide magnet 2 into the guide hole 51, ensuring that the magnetization directions on both sides of the guide magnet 2 are the same as the magnetization directions on both sides of the top surface of the main magnet 1, and aligning the guide magnet 2 vertically with the inner hole 11. Then, activate the first lifting mechanism 4 to drive the guide push rod 6 downwards. The guide push rod 6 pushes the guide magnet 2 downwards. Through the guiding and limiting effect of the guide hole 51, the pushing force of the guide push rod 6 can overcome the repulsive force of the main magnet 1, allowing the guide magnet 2 to be smoothly pushed into the inner hole 11, reducing assembly difficulty. Based on the multi-polar structure of the main magnet 1, when the guide magnet 2 is embedded to approximately half its depth in the inner hole, the repulsive force between the guide magnet 2 and the main magnet 1 will transform into an attractive force, and the guide magnet 2 will be attracted to the bottom of the inner hole 11, which is very beneficial for the curing of the glue.

[0035] In a preferred embodiment, the shape of the guide hole 51 can be the same as the shape of the guide magnet 2. Different shapes of guide holes 51 can be set according to different shapes of guide magnets 2. The shape of the positioning groove 71 is not limited, as long as it can position the main magnet 1.

[0036] Key references Figure 7-9The guide plate 5 is also provided with a material trough 52 and an adsorption magnet 53. The material trough 52 and the adsorption magnet 53 are respectively arranged on both sides of the guide hole 51. The material trough 52 is preferably a horizontal groove structure, with one end connected to the guide hole 51. The material trough 52 can hold multiple mutually adsorbing guide magnets 2, which are arranged in a row. The adsorption magnet 53 is fixed on the guide plate 5 and adsorbs with the guide magnet 2 in the guide hole 51. Through the adsorption of the adsorption magnet 53 and the guide magnet on the material trough 52, the guide magnet 2 is positioned in the guide hole 51. Moreover, when the guide push rod 6 pushes the guide magnet 2 in the guide hole 51 downward to embed into the inner hole 11 of the main magnet 1 and then returns to its original position upward, the next guide magnet 2 on the material trough 52 will be automatically adsorbed into the guide hole 51 through the adsorption of the adsorption magnet 53. This eliminates the need to frequently insert the guide magnet 2 into the guide hole 51; only multiple guide magnets 2 need to be inserted into the guide hole 51.

[0037] like Figure 9 As shown, the material trough 52 is preferably a horizontal groove structure, specifically set on the left side of the guide hole 51. The right end of the material trough 52 is connected to the guide hole 51. If the length of the material trough 52 is insufficient, an extension plate 54 can be added to the left side of the guide plate 5 to extend the length of the material trough 52, so that more guide magnets 2 can be installed. An installation groove 55 for installing the adsorption magnet 53 is provided on the right side of the guide hole 51.

[0038] like Figure 5 As shown, a cover plate 56 is provided above the material trough 52, and the cover plate 56 covers the left side of the guide hole 51. To achieve the limiting of the guide magnet 2 when it is inserted into the guide hole 51, the distance between the guide hole 51 and the inner hole 11 should be small. Therefore, the guide plate 5 needs to contact or be close to the positioning plate 7. This may cause the guide magnet 2 on the material trough 52 to be affected by the main magnet 1, which may cause the guide magnet 2 to tilt and affect its arrangement, thereby affecting the subsequent guide magnet 2 to be attracted to the guide hole 51. The cover plate 56 can prevent the guide magnet 2 from tilting and make its arrangement flat. In addition, the left end of the material trough 52 is not covered by the cover plate 56, and the guide magnet 2 can be installed in the material trough 52 here.

[0039] Key references Figure 9-10 The bottom and one side of the positioning plate 7 are respectively provided with a second lifting mechanism 81 and a first side pushing mechanism 91. The second lifting mechanism 81 can drive the positioning plate 7 to move up and down to get closer to or away from the guide plate 5, and the first side pushing mechanism 91 can drive the positioning plate 7 to move horizontally to be offset from or aligned with the guide plate 5.

[0040] After the guide magnet 2 is inserted into the inner hole 11, the second lifting mechanism 81 drives the positioning plate 7 to descend away from the guide plate 5. Then, the first side pushing mechanism 91 pushes the positioning plate 7 out to the side, so that the positioning plate 7 and the guide plate 5 are misaligned. At this time, it is easy to remove the Heilbeck magnetic assembly assembled on the positioning plate 7, and it is also convenient to put the new main magnet 1 into the positioning groove 71. After the main magnet 1 is put into the positioning groove 71, the first side pushing mechanism 91 drives the positioning plate 7 to reset, so that the guide magnet 2 in the guide hole 51 is aligned with the inner hole 11 below. Then, the second lifting mechanism 81 drives the positioning plate 7 to move upward until it contacts the guide plate 5. Then, the guide push rod 6 can move downward to push the guide magnet 2 in the guide hole 51 into the inner hole 11.

[0041] Specifically, the first lifting mechanism 4, the second lifting mechanism 81, and the first side pushing mechanism 91 can be driving mechanisms such as cylinders, hydraulic cylinders, lead screws, and slide rails. In this utility model, cylinders are preferred.

[0042] A mounting plate 9 is provided below the positioning plate 7. The first side-pushing mechanism 91 is horizontally mounted on the mounting plate 9. The positioning plate 7 is mounted on the first side-pushing mechanism 91 and connected to the telescopic rod of the first side-pushing mechanism 91. The second lifting mechanism 81 is vertically mounted below the mounting plate 9. A base 8 is provided at the bottom of the second lifting mechanism 81. A frame 10 is provided on both sides of the base 8. The guide plate 5 and the first lifting mechanism 4 are fixed on the frame 10.

[0043] Key references Figure 6 , Figure 7 and Figure 10 The positioning plate 7 has a mounting position 72, on which a fixture plate 73 can be detachably mounted. The fixture plate 73 has multiple positioning slots 71, and the guide plate 5 has multiple guide holes 51 corresponding to the positioning slots 71. The number of guide push rods 6 corresponds to the number of guide holes 51. The piston rod of the first lifting mechanism 4 has a lifting plate 41, and the multiple guide push rods 6 can all be connected to the lifting plate 41. During assembly, the main magnets 1 of the multiple glued iron sheets 3 are first inserted into the positioning slots 71 of the fixture plate 73, and then the fixture plate 73 is inserted into the mounting position 72 to complete the insertion of the main magnets 1. Multiple main magnets 1 can be installed at one time, and multiple guide magnets 2 can be embedded. The first lifting mechanism 4 can complete the assembly of multiple Heilbeck magnetic components with one descent, which greatly improves the processing efficiency.

[0044] Specifically, one side of the mounting position 72 is provided with a side wall for the fixture plate 73 to abut against. The mounting plate 9 is also provided with a horizontally arranged second side push mechanism 92 on one side of the first side push mechanism 91. The second side push mechanism 92 is preferably a cylinder. The piston rod of the second side push mechanism 92 is connected to a push plate 93. The push plate 93 pushes against one side of the fixture plate 73 to position the fixture plate 73 on the mounting position 72, which can prevent the fixture plate 73 from shifting and ensure that the guide magnet 2 can be aligned vertically with the inner hole 11, thereby improving the assembly accuracy.

[0045] 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 guide tooling for assembling Hellbeck magnetic circuit structures, characterized in that: The device includes a first lifting mechanism, a guide plate, a guide push rod, and a positioning plate. The positioning plate has a positioning groove for positioning the main magnet, and the guide plate has a guide hole for placing the guide magnet. The guide plate is positioned above the positioning plate, and the guide magnet in the guide hole is vertically aligned with the inner hole of the main magnet in the positioning groove. The guide push rod is positioned above the guide hole. The first lifting mechanism is connected to the guide push rod and drives the guide push rod to move downward, thereby pushing the guide magnet to embed into the inner hole of the main magnet.

2. The guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 1, characterized in that: The guide plate is also provided with a material trough and an adsorption magnet. The material trough and the adsorption magnet are respectively set on both sides of the guide hole. The material trough is connected to the guide hole. Multiple guide magnets that attract each other are installed on the material trough. The adsorption magnet is fixedly set on the guide plate and attracts each other with the guide magnet in the guide hole. When the guide push rod pushes the guide magnet in the guide hole downward to embed into the inner hole of the main magnet and then returns to its original position upward, the next guide magnet on the material trough is automatically attracted into the guide hole by the adsorption effect of the adsorption magnet.

3. The guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 2, characterized in that: The material trough is a horizontal trough, and the right end of the material trough is connected to the guide hole. The right side of the guide hole is provided with an installation groove for installing the adsorption magnet.

4. The guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 3, characterized in that: A cover plate is provided above the material trough, and the cover plate is placed on the left side of the guide hole.

5. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 1, characterized in that: The bottom and one side of the positioning plate are respectively provided with a second lifting mechanism and a first side pushing mechanism. The second lifting mechanism drives the positioning plate to move up and down to get closer to or away from the guide plate, and the first side pushing mechanism drives the positioning plate to move horizontally to be offset from or aligned with the guide plate.

6. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 5, characterized in that: The positioning plate has a mounting position on which a fixture plate can be detachably mounted. The fixture plate has multiple positioning slots, and the guide plate has multiple guide holes corresponding to the positioning slots. The number of guide push rods corresponds to the number of guide holes.

7. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 6, characterized in that: A mounting plate is provided below the positioning plate, the first side-pushing mechanism is mounted on the mounting plate, the positioning plate is mounted on the first side-pushing mechanism, and the second lifting mechanism is located below the mounting plate.

8. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 7, characterized in that: One side of the mounting position is provided with a side wall for the fixture plate to abut against. The mounting plate is provided with a second side pushing mechanism on one side of the first side pushing mechanism. The second side pushing mechanism is driven to connect a push plate, which pushes against the other side of the fixture plate to position the fixture plate.

9. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 8, characterized in that: The first lifting mechanism, the second lifting mechanism, the first side push mechanism, and the second side push mechanism are all cylinders. The piston rod of the first lifting mechanism is provided with a lifting plate for connecting the guide push rod. The piston rod of the second lifting mechanism is connected to the mounting plate. The piston rods of the first side push mechanism and the second side push mechanism are respectively connected to the positioning plate and the push plate.

10. A guide fixture for assembling a Hellbeck magnetic circuit structure as described in claim 5, characterized in that: The bottom of the second lifting mechanism is provided with a base, and the two sides of the base are provided with a frame. The guide plate and the first lifting mechanism are fixed on the frame.

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