Magnet installation auxiliary tool and production line
By designing auxiliary tooling for magnet installation, and utilizing positioning magnets and a limiting support surface guide structure, the problem of incorrect assembly caused by the misalignment of magnet polarities during manual installation was solved. This enabled accurate docking and efficient assembly of magnets and parts, reducing production costs.
Patent Information
- Application Number
- CN202423049101.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, when magnets are installed manually, errors in polarity identification can easily lead to incorrect assembly of the magnets and parts, increasing production costs and damaging the parts.
Design a magnet installation auxiliary tooling, including a base and a positioning magnet. The target magnet is fixed by the attraction of the positioning magnet, and with the help of the limiting support surface and guide positioning hole, the polarity orientation of the magnet and the accurate docking of the parts are ensured, avoiding incorrect assembly.
This improved the accuracy and efficiency of assembling magnets and parts, and reduced production costs and labor intensity.
Smart Images
Figure CN223544543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical assembly technology, specifically to a magnet mounting auxiliary tooling and a production line equipped with the magnet mounting auxiliary tooling. Background Technology
[0002] During product assembly and processing, some products involve magnet installation. Currently, a significant proportion of magnet installation is done manually, especially for small-batch production, where manual installation is the primary method to control production costs. However, manual magnet installation has the following disadvantages:
[0003] Because magnets have polarity, their polarity must be accurately identified and installed onto the parts during the installation process. However, in practice, negligence or visual fatigue among workers can lead to magnets being installed with the wrong polarity, resulting in the magnet exhibiting the opposite polarity to what is required. Furthermore, since the connection between magnets and parts is usually an interference fit or adhesive bonding, reworking incorrectly installed magnets can easily damage or render parts unusable during the removal process, increasing production costs. Summary of the Invention
[0004] To address the aforementioned problems, the main objective of this invention is to provide an auxiliary tooling for magnet mounting that ensures the accuracy of polarity on the parts to be assembled with magnets and improves assembly efficiency.
[0005] Another objective of this invention is to provide a production line equipped with the aforementioned magnet mounting auxiliary fixture.
[0006] To achieve the main objective of this utility model, this utility model provides a magnet installation auxiliary fixture, which includes a base and a positioning magnet. The base has an installation hole, and a limiting support surface is provided around the outer periphery of the installation hole. The positioning magnet is installed in the installation hole, and the active magnetic pole of the positioning magnet is located at the opening of the installation hole. The adsorption surface of the active magnetic pole is flush with the limiting support surface, or the adsorption surface of the active magnetic pole and the limiting support surface have a preset height difference in the axial direction of the installation hole.
[0007] As can be seen from the above, by designing the auxiliary tooling for magnet installation, when assembling the target magnet and the part, the positioning magnet on the auxiliary tooling can attract and fix the target magnet to itself and complete the polarity orientation of the target magnet. Then, the assembly hole on the part is aligned with the target magnet to press the target magnet into the assembly hole of the part, thus completing the assembly of the target magnet and the part. Therefore, it is not necessary for the operator to visually identify the polarity of the target magnet, effectively preventing incorrect assembly between the target magnet and the part, thereby avoiding rework in the assembly of the target magnet and the part, and improving assembly efficiency.
[0008] A preferred embodiment is that the base has a retaining portion formed around the opening of the mounting hole on the outer periphery of the mounting hole, and a limiting support surface is located between the opening of the mounting hole and the retaining portion, forming an insertion joint between the limiting support surface and the retaining portion.
[0009] As can be seen from the above, by setting up a barrier to form an insertion port with the limiting support surface, the parts can be guided and positioned to a certain extent. This ensures that the parts will not be moved relative to the positioning magnet and lose their mutual attraction due to lateral force during the assembly process, thereby ensuring that the target magnet and the parts can be assembled in place.
[0010] Another preferred embodiment is that the magnet mounting auxiliary tooling also includes a positioning seat, which is detachably connected to the base. The positioning seat is provided with a guide positioning hole that matches the mounting hole, and the guide positioning hole passes through the positioning seat in the axial direction. After the positioning seat and the base are assembled, the projection of the positioning magnet is located within the projection of the guide positioning hole in the axial direction.
[0011] As can be seen from the above, the positioning seat, through its cooperation with the base and the guide positioning hole on it, guides the part so that the assembly hole on the part can be accurately aligned with the target magnet. At the same time, the positioning seat can guide and position the part during the assembly process of the target magnet and the part, so as to ensure that the target magnet is reliably installed into the assembly hole of the part and prevent the part from moving relative to the positioning magnet due to lateral force during the assembly process. This avoids the target magnet from detaching from the mutual attraction between the positioning magnet and the positioning magnet before the assembly is completed, thus ensuring the reliability of the assembly.
[0012] A further option is to have a guide post assembly on the base, with the guide posts of the guide post assembly parallel to the axial direction; the positioning seat is also provided with a guide hole assembly, with the guide holes of the guide hole assembly penetrating the positioning seat axially, and the guide posts can be slidably connected with the matching guide holes.
[0013] As can be seen from the above, the design enables precise assembly of the positioning seat and the base, while also ensuring the relative positional accuracy between the guide positioning hole and the target magnet, so that the assembly hole of the part can be accurately aligned with the target magnet.
[0014] A further proposed solution is that the base has a boss forming around the mounting hole on the outer periphery of the mounting hole, and a limiting support surface is formed on the top surface of the boss; the bottom surface of the positioning seat has an axial recess forming an avoidance groove, which is connected to the guide positioning hole; after the positioning seat and the base are assembled, the boss is inserted into the avoidance groove.
[0015] As can be seen from the above, since the limiting support surface can be used to mate with the end face of the part and support and position the part, it needs to meet certain accuracy requirements. Therefore, by forming a boss on the outer periphery of the mounting hole and forming the limiting support surface on the top of the boss, the limiting support surface can be minimized as much as possible, which is beneficial to reducing production costs.
[0016] A further proposed solution is that the guide positioning hole has a countersunk head and a straight hole, with the straight hole connecting the countersunk head and the clearance groove, and a guide surface is formed at the connection between the countersunk head and the straight hole; in the axial direction, the projection of the positioning magnet is located within the projection of the straight hole.
[0017] As can be seen from the above, by designing the guide positioning hole, the bottom surface of the countersunk head can serve as the mating surface for the parts, so as to support and position the parts and meet certain mating accuracy requirements. Therefore, the area of the mating surface of the positioning seat parts can be minimized in a reasonable way, which helps to reduce production costs.
[0018] A further solution is to have the positioning magnet interference fit with the mounting hole; or to bond the positioning magnet to the mounting hole; or to integrally mold the positioning magnet into the mounting hole.
[0019] As can be seen from the above, the fixing method between the positioning magnet and the mounting hole can be selected according to the manufacturing requirements of the base and the processing cost requirements, thereby improving the flexibility of the production of magnet mounting auxiliary tooling and making the production cost of magnet mounting auxiliary tooling as low as possible.
[0020] A further proposed solution is to have two or more mounting holes arranged in a straight line, or three or more mounting holes arranged in a circular array, or four or more mounting holes arranged in a rectangular array or a concentric circular array; each mounting hole is fitted with a positioning magnet.
[0021] As can be seen from the above, this design is beneficial for improving production efficiency and reducing production costs.
[0022] To achieve another objective of this utility model, this utility model provides a production line, including a workbench, which also includes the aforementioned magnet mounting auxiliary fixture, with a base placed on the workbench surface.
[0023] As can be seen from the above, a production line equipped with the aforementioned auxiliary tooling for magnet installation can improve the accuracy of assembling the target magnet with the part, increase assembly efficiency, and reduce production costs.
[0024] A further option is that the production line also includes a feeding device and / or a discharging device, with the feeding device used to feed materials onto the worktable and the discharging device used to unload materials from the worktable.
[0025] As can be seen from the above, the design is conducive to improving the assembly efficiency of the target magnet and parts, and reducing labor intensity and production costs. Attached Figure Description
[0026] Figure 1 This is a structural diagram of the first embodiment of the magnet installation auxiliary tooling of this utility model.
[0027] Figure 2 This is a reference diagram of the first usage state of the first embodiment of the magnet installation auxiliary tooling of this utility model.
[0028] Figure 3 This is a cross-sectional view of the second usage state of the first embodiment of the magnet installation auxiliary tooling of this utility model.
[0029] Figure 4 This is a diagram showing the distribution of the second type of mounting holes in the first embodiment of the magnet mounting auxiliary tooling of this utility model.
[0030] Figure 5 This is a diagram showing the distribution of the third type of mounting holes in the first embodiment of the magnet mounting auxiliary tooling of this utility model.
[0031] Figure 6 This is a structural diagram of the second embodiment of the magnet installation auxiliary tooling of this utility model.
[0032] Figure 7 This is an exploded view of the second embodiment of the magnet installation auxiliary tooling of this utility model.
[0033] Figure 8 This is a structural diagram of the base of the second embodiment of the magnet mounting auxiliary tooling of this utility model.
[0034] Figure 9 This is a cross-sectional view of the second embodiment of the magnet installation auxiliary tooling of this utility model in its usage state.
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation
[0036] First embodiment of magnet installation auxiliary tooling
[0037] Reference Figure 1 The magnet installation auxiliary tooling 100 includes a base 1 and a positioning magnet 2.
[0038] Combination Figure 2 and Figure 3 The base 1 is provided with a mounting hole 11, and a limiting support surface 111 is provided around the mounting hole 11. The limiting support surface 111 can be used to cooperate with the end face 42 of the part 4 (the end face 42 refers to the end face 42 of the part 4 where the assembly hole 41 is located, that is, the end face located at the opening of the assembly hole 41) to achieve support and positioning of the part 4 and ensure the assembly position accuracy between the target magnet 3 and the part 4.
[0039] The positioning magnet 2 is installed inside the mounting hole 11, and the active magnetic pole of the positioning magnet 2 is located at the opening of the mounting hole 11. The adsorption surface 21 of the active magnetic pole of the positioning magnet 2 can be flush with the limiting support surface 111; or, the adsorption surface 21 of the active magnetic pole and the limiting support surface 111 have a predetermined height difference in the axial direction of the mounting hole 11. For example, in the axial direction of the mounting hole 11, the adsorption surface 21 of the active magnetic pole is located inside the mounting hole 11, or the adsorption surface 21 of the active magnetic pole is located outside the mounting hole 11. In this embodiment, the adsorption surface 21 of the active magnetic pole of the positioning magnet 2 is set to be substantially flush with the limiting support surface 111.
[0040] Preferably, the base 1 has a retaining portion 12 formed around the outer periphery of the mounting hole 11, and the retaining portion 12 surrounds the outer periphery of the opening of the mounting hole 11; the limiting support surface 111 is located between the opening of the mounting hole 11 and the retaining portion 12, so that an insertion port 121 is formed between the limiting support surface 111 and the retaining portion 12. By setting the retaining portion 12 and having it cooperate with the limiting support surface 111 to form the insertion port 121, the part 4 can be guided and positioned to a certain extent, ensuring that during the assembly process, the part 4 will not be moved relative to the positioning magnet 3 by lateral force and will not disengage from the mutual attraction with the positioning magnet 2, thereby ensuring that the target magnet 3 and the part 4 can be assembled in place. In the axial direction of the mounting hole 11, the height of the retaining portion 12 may be lower than the height of the target magnet 3; however, more preferably, the height of the retaining portion 12 is set to be higher than the height of the target magnet 3.
[0041] By designing the magnet mounting auxiliary fixture 100, when assembling the target magnet 3 and the part 4, the positioning magnet 2 on the magnet mounting auxiliary fixture 100 can attract and fix the target magnet 3 to itself and complete the polarity orientation of the target magnet 3. Then, the assembly hole 41 on the part 4 is aligned with the target magnet 3 to press the target magnet 3 into the assembly hole 41 of the part 4, thus completing the assembly of the target magnet 3 and the part 4. Therefore, it is not necessary for the staff to visually identify the polarity of the target magnet 3, effectively preventing incorrect assembly between the target magnet 3 and the part 4, thereby avoiding rework in the assembly of the target magnet 3 and the part 4 and improving assembly efficiency.
[0042] Furthermore, as an optional solution, the number of mounting holes 11 can be two or more, and the two or more mounting holes 11 are arranged in a straight line; for example... Figures 1 to 3 As shown, there are five mounting holes 11, arranged in a straight line. It should be noted that, as an alternative solution, such as... Figure 4 As shown, the number of mounting holes 11 can be set to four or more, and the four or more mounting holes 11 are arranged in a rectangular array, that is, the four or more mounting holes 11 are arranged in N rows and M columns; where N≥2, M≥2; of course, as a special variant design, the number of columns in each row can be different. For example, when the first row of mounting holes 11 has five columns (or five in total), the second row of mounting holes 11 can be set to four columns (or four in total). As another optional scheme, such as Figure 5 As shown, when the number of mounting holes 11 is set to four or more, the four or more mounting holes 11 can also be arranged in a concentric circular array. As another optional solution, the number of mounting holes 11 is set to three or more, and the three or more mounting holes 11 can be arranged in a circular array. Each mounting hole 11 contains a positioning magnet 2. The above design helps improve production efficiency while also reducing production costs.
[0043] Furthermore, the positioning magnet 2 and the mounting hole 11 can preferably be bonded and fixed with adhesive; of course, as another optional solution, the positioning magnet 2 and the mounting hole 11 can also be fixedly connected by interference fit; as yet another optional solution, the base 1 can also be formed by injection molding, and the positioning magnet 2 can be integrally formed into the mounting hole 11 by injection molding (such as metal insert injection molding process) (since the temperature required for demagnetizing the positioning magnet 2 is much higher than the temperature required for injection molding, integrally forming the positioning magnet 2 into the mounting hole 11 by injection molding will not cause the positioning magnet 2 to be demagnetized).
[0044] In summary, the design of the magnet mounting auxiliary fixture 100 ensures the accuracy of the polarity of the target magnet 3 on the mounting part 4 and improves assembly efficiency.
[0045] Second embodiment of magnet mounting auxiliary tooling
[0046] Reference Figures 6 to 9 The difference between this embodiment and the first embodiment of the magnet mounting auxiliary tooling lies in the structure of the base 1, and this embodiment also includes a positioning seat 5. Specifically, in this embodiment:
[0047] The design of the enclosure part 12 in the base 1 is eliminated. Therefore, the insertion hole formed by the enclosure part 12 and the limiting support surface 111 is also eliminated. At the same time, the position setting of the limiting support surface 111 is changed to the following design: the base 1 has a boss 13 formed on the outer periphery of the mounting hole 11. The boss 13 surrounds the outer periphery of the mounting hole 11, and the limiting support surface 111 is designed to be formed on the top surface of the boss 13. Since the limiting support surface 111 may be used to cooperate with the end face 42 of the part 4 and to support and position the part 4, it needs to meet certain accuracy requirements. By setting the boss 13 and forming the limiting support surface 111 on the top surface of the boss 13, the limiting support surface 111 can be minimized as much as possible, which is conducive to reducing production costs.
[0048] The positioning seat 5 is preferably detachably connected to the base 1. The positioning seat 5 has guide positioning holes 51 that penetrate the mounting hole 11 axially. The number of guide positioning holes 51 is equal to the number of mounting holes 11 on the base 1, ensuring one guide positioning hole 51 corresponds to one mounting hole 11. When the positioning seat 5 is assembled onto the base 1, the projection of the positioning magnet 2 is located within the projection of the guide positioning hole 51 axially in the mounting hole 11. This design allows the positioning seat 5 to guide the part 4 through its guide positioning holes 51 after it is engaged with the base 1, ensuring accurate alignment of the mounting hole 41 on the part 4 with the target magnet 3. Simultaneously, the positioning seat 5 guides and positions the part 4 during the assembly process, ensuring the target magnet 3 is reliably installed into the mounting hole 41 of the part 4. It also prevents the part 4 from being moved relative to the positioning magnet due to lateral forces during assembly, thus preventing the target magnet 3 from detaching from the positioning magnet 2 before assembly is complete and ensuring assembly reliability. Furthermore, the above design makes the assembly between the target magnet 3 and the part 4 more convenient and helps to improve assembly efficiency. For example, it is not necessary to separate the part 4 equipped with the target magnet 3 from the positioning magnet 2 one by one. Instead, the positioning seat 5 can be used to simultaneously separate multiple parts 4 equipped with the target magnet 3 from multiple positioning magnets 2.
[0049] Furthermore, the bottom surface of the positioning seat 5 has a relief groove 53 formed at each boss 13 of the base 1. The relief groove 53 is recessed into the positioning seat 5 in the axial direction and communicates with the guide positioning hole 51. When the positioning seat 5 is assembled with the base 1, the boss 13 is inserted into the relief groove 53.
[0050] Preferably, the guide positioning hole 51 has a countersunk head 511 and a straight hole 512. The straight hole 512 connects the countersunk head 511 and the clearance groove 53. A guide surface 513 is formed at the connection between the countersunk head 511 and the straight hole 512. In the axial direction of the mounting hole 11, the projection of the positioning magnet 2 is located within the projection of the straight hole 512. Through the design of the guide positioning hole 51, the bottom surface of the countersunk head 511 can serve as a mating surface with the part 4, satisfying the requirements for supporting and positioning the part 4, as well as meeting certain mating accuracy requirements. Therefore, the area of the mating surface of the part 4 in the positioning seat 5 can be reasonably minimized, thereby helping to reduce production costs.
[0051] The bottom surface of the countersunk head 511 can also be used as a positioning and support surface. When the end face 42 of part 4 at the opening of the assembly hole 41 and the target magnet 3 need to maintain a preset distance in the axial direction of the mounting hole 11 (e.g., the side of the target magnet 3 facing the positioning magnet 2 needs to be located outside the assembly hole 41 of part 4 and have a certain distance from the end face 42 of part 4), the bottom surface of the countersunk head 511 can be used in conjunction with the step portion 43 of part 4 for positioning, so as to ensure that the distance between the side of the target magnet 3 facing the positioning magnet 2 and the end face 42 of part 4 after each assembly is consistent.
[0052] In this embodiment, a guide post assembly is further provided on the base 1, comprising two or more guide posts 141, which are parallel to the axial direction of the mounting hole 11. Correspondingly, a guide hole assembly is provided on the positioning seat 5, comprising two or more guide holes 521, each corresponding to one of the guide posts 141. The guide holes 521 penetrate the positioning seat 5 axially through the mounting hole 11. When the positioning seat 5 is assembled with the base 1, the guide posts 141 on the base 1 are inserted into a corresponding guide hole 521 on the positioning seat 5, allowing the guide posts 141 and guide holes 521 to slide together. This allows the positioning seat 5 to slide relative to the base 1 through the engagement of its guide holes 521 and guide posts 141. This design enables precise assembly of the positioning seat 5 and the base 1, while also ensuring the relative positional accuracy between the guide positioning hole 51 and the target magnet 3, allowing the assembly hole 41 of the part 4 to accurately align with the target magnet 3.
[0053] Production line example
[0054] The production line includes a workbench and the magnet mounting fixture 100 described in the first or second embodiment of the magnet mounting auxiliary fixture; wherein, the base 1 is placed on the workbench surface; preferably, the base 1 can be fixed on the workbench.
[0055] Furthermore, the production line may also include a loading device and / or a unloading device; wherein, the loading device is used to load materials onto the worktable, for example, the loading device may use a conveyor line to transport the target magnet 3 and / or part 4 to the worktable; the unloading device may use a conveyor line to transfer the assembled target magnet 3 and part 4 to the next workstation; the setting of the loading device and the unloading device is conducive to improving the assembly efficiency of the target magnet and part, and reducing labor intensity and production costs.
[0056] It is evident that by setting up the aforementioned magnet installation auxiliary fixture 100, the production line can improve the accuracy of assembling the target magnet 3 and part 4, increase assembly efficiency, and reduce production costs.
[0057] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A magnet mounting auxiliary fixture, characterized in that, include: The base has mounting holes, and a limiting support surface is provided around the outer periphery of the mounting holes; A positioning magnet is installed in the mounting hole, with the active magnetic pole of the positioning magnet located at the opening of the mounting hole. The adsorption surface of the active magnetic pole is flush with the limiting support surface, or the adsorption surface of the active magnetic pole and the limiting support surface have a preset height difference in the axial direction of the mounting hole.
2. The magnet mounting auxiliary fixture according to claim 1, characterized in that: The base has a retaining portion formed around the opening of the mounting hole on the outer periphery of the mounting hole. The limiting support surface is located between the opening of the mounting hole and the retaining portion, and an insertion port is formed between the limiting support surface and the retaining portion.
3. The magnet mounting auxiliary fixture according to claim 1, characterized in that: The magnet mounting auxiliary tooling also includes a positioning seat, which is detachably connected to the base. The positioning seat is provided with a guide positioning hole that matches the mounting hole, and the guide positioning hole passes through the positioning seat in the axial direction. After the positioning seat is assembled with the base, the projection of the positioning magnet is located within the projection of the guide positioning hole in the axial direction.
4. The magnet mounting auxiliary fixture according to claim 3, characterized in that: The base is provided with a guide post assembly, and the guide posts of the guide post assembly are parallel to the axial direction. The positioning seat is also provided with a guide hole group, the guide holes of the guide hole group penetrate the positioning seat in the axial direction, and the guide post can be slidably connected with the matching guide hole.
5. The magnet mounting auxiliary fixture according to claim 4, characterized in that: The base has a boss formed around the mounting hole on the outer periphery of the mounting hole, and the limiting support surface is formed on the top surface of the boss. The bottom surface of the positioning seat is recessed into the positioning seat in the axial direction to form an avoidance groove, and the avoidance groove communicates with the guide positioning hole; After the positioning seat is assembled with the base, the boss is inserted into the clearance groove.
6. The magnet mounting auxiliary fixture according to claim 5, characterized in that: The guide positioning hole has a countersunk head and a straight hole, the straight hole connecting the countersunk head and the clearance groove, and a guide surface is formed at the connection between the countersunk head and the straight hole. Along the axial direction, the projection of the positioning magnet is located within the projection of the straight hole.
7. The magnet mounting auxiliary tooling according to any one of claims 1 to 6, characterized in that: The positioning magnet is interference-fitted with the mounting hole; or The positioning magnet is bonded and fixed to the mounting hole; or The positioning magnet is integrally formed inside the mounting hole.
8. The magnet mounting auxiliary fixture according to claim 7, characterized in that: The number of mounting holes is two or more, and the two or more mounting holes are arranged in a straight line, or The number of mounting holes is three or more, and the three or more mounting holes are arranged in a circular array, or The number of mounting holes is four or more, and the four or more mounting holes are distributed in a rectangular array or in a concentric circular array. Each of the mounting holes is fitted with a positioning magnet.
9. A production line, including a workbench, characterized in that, It also includes the magnet mounting auxiliary fixture as described in any one of claims 1 to 8, wherein the base is placed on the table surface of the workbench.
10. The production line according to claim 9, characterized in that: The production line also includes: A feeding device for feeding material onto the worktable; and / or A feeding device is used to feed materials onto the worktable.