A dynamic positioning magnetic chuck for a injection molding machine

Abstract

The utility model discloses a kind of positioning magnetic chuck of injection molding machine dynamic fixed plate, including fixed base, lower magnetic disk, upper magnetic disk and height adjusting assembly, fixed base is evenly laid on tooling bottom plate, lower magnetic disk is detachably mounted on fixed base and can be powered to attract fixed base, upper magnetic disk is used to attract workpiece, height adjusting assembly is installed between lower magnetic disk and upper magnetic disk, it includes lower threaded cylinder and upper threaded cylinder respectively fixed on lower magnetic disk and upper magnetic disk, two threaded cylinders are connected by rotating sleeve with opposite screw thread of one inner circumferential surface, rotating rotating sleeve can drive upper magnetic disk to lift, realize the adjustment of height, the utility model is adjusted by modularization design and two-way screw thread adjusting structure, effectively solve the problem that traditional magnetic chuck height is fixed, layout is not flexible, with adjusting accurate, easy to operate, locking reliable, strong adaptability and the like advantages.

Description

Technical Field

[0001] This utility model relates to the technical field of machining tooling, specifically a magnetic chuck for positioning a moving platen in injection molding. Background Technology

[0002] In the field of machining, magnetic chucks are a commonly used workpiece fixing fixture. They attract workpieces using electromagnetic force, offering advantages such as rapid clamping, easy operation, and the ability to simultaneously attract multiple workpieces. In injection molding machines, the fixed plate structure often has multiple stepped surfaces of varying heights on one side of the workpiece. However, traditional magnetic chucks are typically integral fixed structures, which presents significant limitations in positioning them: firstly, their fixed suction height cannot adapt to the clamping requirements of workpieces of different thicknesses, resulting in poor versatility; secondly, multiple chucks are fixedly arranged on the fixture plate, making it difficult to quickly adjust their positions according to product changes, resulting in insufficient flexibility and inconvenient adjustment. Utility Model Content

[0003] The purpose of this utility model is to provide a magnetic chuck for positioning injection molding machine plate. Through modular layout and bidirectional threaded adjustment mechanism, the height of the magnetic chuck can be flexibly and accurately adjusted. It has the advantages of stable guidance, reliable locking and internal wiring, which greatly improves the adaptability of tooling to different workpieces, operating efficiency and safety.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a magnetic chuck for positioning a machined injection molding machine plate, comprising a fixed base, which is evenly distributed on the tooling base plate;

[0005] The lower disk is detachably mounted on the fixed base and is configured to be electrically attracted to the fixed base;

[0006] The upper disk is located at the top of the height adjustment assembly and is used to electrically adsorb workpieces.

[0007] A height adjustment assembly is installed between the lower disk and the upper disk;

[0008] The height adjustment assembly includes a lower threaded cylinder fixed to the top surface of the lower disk and an upper threaded cylinder fixed to the bottom surface of the upper disk. The lower threaded cylinder and the upper threaded cylinder are coaxially arranged and connected by a rotating sleeve to adjust the distance between the upper disk and the lower disk.

[0009] Through modular design and height adjustment components, the height of the upper disk can be flexibly and precisely adjusted, greatly improving the adaptability of the magnetic chuck to different workpieces. At the same time, the detachable connection between the fixed base and the lower disk enhances the overall system layout flexibility and maintenance convenience.

[0010] In a further technical solution, a first guide structure is fixed inside the lower threaded cylinder, and a second guide structure is fixed inside the upper threaded cylinder. The first guide structure is slidably inserted into the second guide structure to limit the relative rotation of the upper disk and the lower disk.

[0011] The sliding fit between the first and second guide structures effectively enhances the guiding stability between the upper and lower disks, prevents skewing or jamming during height adjustment, and prevents relative rotation between the upper and lower threaded cylinders, thereby preventing relative rotation between the upper and lower disks and ensuring a smooth and reliable lifting process.

[0012] In a further technical solution, threads are provided on the outer circumference of both the upper threaded cylinder and the lower threaded cylinder, and the threads are arranged in opposite directions. Threads are provided on the inner circumference of the rotating sleeve, and the threads on the inner circumference of the rotating sleeve are divided into upper and lower parts. The threads of the upper part and the threads of the lower part are arranged in opposite directions, and the threads of the upper and lower parts respectively cooperate with the threads on the outer circumference of the upper threaded cylinder and the lower threaded cylinder.

[0013] The bidirectional thread design with opposite rotation directions allows the rotating sleeve to drive the upper and lower threaded cylinders to move in opposite directions simultaneously during a single rotation, significantly improving the efficiency of height adjustment and ease of operation, and reducing adjustment time.

[0014] In a further technical solution, the first guide structure is provided in two parts, specifically a guide rod with a rectangular cross-section; the second guide structure is provided in two parts, specifically a guide sleeve, wherein a rectangular slot adapted to the guide rod is provided in the guide sleeve, so that the guide rod can be slidably inserted into the guide sleeve.

[0015] The sliding fit structure between the rectangular cross-section guide rod and the rectangular slot eliminates the possibility of relative rotation, enhancing the rigidity and stability of the guide.

[0016] In a further technical solution, the number of the first guide structures is two, and the two first guide structures are slidably inserted into the second guide structure.

[0017] The design of the double first guide structure improves the force balance and motion stability of the second guide structure and prevents relative rotation between the upper and lower threaded cylinders.

[0018] A further technical solution includes a locking mechanism for locking the rotating sleeve. The locking mechanism includes a plurality of vertical toothed grooves disposed on the outer peripheral surface of the second guide structure, an insert plate radially slidably disposed on the rotating sleeve, and a rotating ring rotatably disposed on the outer peripheral surface of the rotating sleeve. One end of the insert plate can be inserted into the toothed groove. The second guide structure is provided in one form, specifically a guide cylinder.

[0019] The locking mechanism provides a mechanical height locking mechanism through the engagement of the insert plate and the tooth groove, which effectively prevents the rotating sleeve from rotating under vibration or external force interference, ensuring the stability and safety of the processing process.

[0020] In a further technical solution, a groove with a guide slope is provided inside the rotating ring, one end of the insert plate can extend into the groove and abut against the guide slope, and a spring is provided on the outer periphery of the insert plate.

[0021] By utilizing the guide slope, the rotational motion of the rotating ring is converted into the radial motion of the insert plate, and combined with the spring, automatic reset is achieved, making the locking and unlocking operations smoother and less strenuous, thus improving convenience and operational efficiency.

[0022] In a further technical solution, an elliptical positioning block is fixed on the top surface of the fixed base, and a splicing hole that mates with the positioning block is opened on the bottom surface of the lower disk; two connecting wire ends are provided on the top surface of the positioning block for powering the lower disk.

[0023] The combination of the elliptical positioning block and the splicing hole ensures the rapid and accurate positioning and connection of multiple suction cup modules on the tooling base plate. At the same time, the integrated connection wires enable plug-and-play functionality upon power-on, improving module assembly efficiency and the reliability of electrical connections.

[0024] In a further technical solution, a first cavity is formed inside the lower threaded cylinder, and a second cavity is formed inside the upper threaded cylinder.

[0025] The design of the first and second cavities reduces the weight of the device while providing effective space for the internal wiring, preventing the wiring from being squeezed or worn during adjustment, extending the service life of the wiring, and enhancing the overall reliability of the equipment.

[0026] A further technical solution involves a power supply line for the upper disk passing sequentially through the first cavity and the second cavity and connecting to the upper disk.

[0027] The wiring runs through the cavity, keeping the outside of the equipment clean with no exposed cables. This protects the wiring from damage by the external environment, eliminates potential safety hazards, and also facilitates a compact layout of the modules.

[0028] In summary, this utility model has the following beneficial effects: The injection molding motorized platen positioning magnetic chuck, through innovative designs such as height adjustment components, guiding structures, locking mechanisms, and modular connections, achieves stable adjustment of the workpiece adsorption height, significantly improving the adaptability, ease of operation, and safety and reliability of the tooling system. Its modular design supports rapid layout and expansion, bidirectional thread adjustment improves efficiency, internal wiring protection and locking mechanisms enhance durability and stability, and the vertical distance between the upper and lower disks is adjustable, making it suitable for clamping and positioning workpieces with uneven stepped surfaces on one side of the injection molding motorized platen. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the fixed base of this utility model;

[0033] Figure 4 This is a schematic diagram of the internal structure of a modular adjustable magnetic chuck including an embodiment of a locking mechanism.

[0034] Figure 5 This is a schematic diagram of the rotating ring of this utility model;

[0035] Figure 6 This is a schematic diagram of the second guide structure with toothed grooves of this utility model;

[0036] Figure 7 yes Figure 4 Enlarged view of point A in the middle;

[0037] Figure 8 This is a schematic diagram showing the distribution of the fixed base on the tooling base plate in this utility model.

[0038] In the diagram: 10. Fixed base; 11. Bolt hole; 12. Positioning block; 13. Connecting wire end; 14. Line hole; 20. Lower disk; 21. Splicing hole; 22. Lower threaded cylinder; 23. First cavity; 24. First guide structure; 30. Upper disk; 31. Upper threaded cylinder; 32. Second guide structure; 33. Second cavity; 34. Gear groove; 40. Rotating sleeve; 41. Rotating ring; 42. Insert plate; 43. Spring; 44. Groove; 45. Guide slope. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] like Figures 1-8As shown, a magnetic chuck for positioning a machined injection molding machine includes a fixed base 10, which can be fixed to a tooling base plate. A lower magnetic disk 20 is inserted into the fixed base 10. When the lower magnetic disk 20 is powered, it can attract the fixed base 10. An upper magnetic disk 30 is provided on the top of the lower magnetic disk 20. A height adjustment component is provided between the lower magnetic disk 20 and the upper magnetic disk 30. The height adjustment component is used to adjust the height of the upper magnetic disk 30. When the upper magnetic disk 30 is powered, it can attract the workpiece.

[0045] Specifically, the top surface of the fixed base 10 is provided with a plurality of bolt holes 11. The fixed base 10 is fixed to the tooling base plate by inserting bolts and tightening them. A plurality of fixed bases 10 are evenly and densely distributed on the tooling base plate. The distribution of the fixed bases 10 on the tooling base plate is as follows: Figure 8 According to the shape of the workpiece, select an appropriate number of lower disks 20 and upper disks 30 and install them on the corresponding fixed bases 10 to hold the workpiece in place. A positioning block 12 is fixed on the top surface of the fixed base 10. The positioning block 12 can be elliptical, cuboid, etc. In this embodiment, an elliptical shape is selected. Two connecting wire heads 13 are provided on the top surface of the positioning block 12 for electrical connection with the lower disk 20. A wire hole 14 is provided on the bottom surface of the fixed base 10 for threading wires, etc.

[0046] In one embodiment, the height adjustment assembly includes a lower threaded cylinder 22 fixed to the top surface of the lower disk 20, the lower threaded cylinder 22 having a first cavity 23 with a top opening, and an upper threaded cylinder 31 fixed to the bottom surface of the upper disk 30, the upper threaded cylinder 31 having a second cavity 33 with a bottom opening. The lower threaded cylinder 22 and the upper threaded cylinder 31 are coaxially arranged and have the same outer diameter. A first guide structure 24 is fixed inside the first cavity 23, and a second guide structure 32 is fixed inside the second cavity 33. The first guide structure 24 is inserted into the second guide structure 32 and is slidably connected with the second guide structure 32. The first guide structure 24 and the second guide structure 32 cannot rotate relative to each other.

[0047] In one embodiment, two first guide structures 24 are provided, each of which is a guide rod with a rectangular cross-section; two second guide structures 32 are provided, each of which is a guide sleeve, and the guide sleeve has a rectangular slot adapted to the guide rod so that the guide rod can be slidably inserted into the guide sleeve.

[0048] In one embodiment, two first guide structures 24 and two second guide structures 32 are provided. The first guide structure 24 may be circular. The first guide structure 24 and the second guide structure 32 are slidably connected and will not rotate relative to each other.

[0049] In one embodiment, the difference between this embodiment and the previous embodiment is that in this embodiment, a first guide structure 24 is provided, the first guide structure 24 is rectangular, and a second guide structure 32 is provided, the second guide structure 32 is provided with a sliding cavity that cooperates with the first guide structure 24, so that the first guide structure 24 can be slidably inserted into the second guide structure 32, and the first guide structure 24 and the second guide structure 32 can only be slidably inserted and will not rotate relative to each other.

[0050] In one embodiment, the height adjustment assembly further includes a rotating sleeve 40. The inner circumferential surface of the rotating sleeve 40 is provided with a thread, which is divided into upper and lower parts, and the threads of the upper and lower parts are arranged in opposite directions. For example, the upper part of the inner circumferential surface of the rotating sleeve 40 is a left-hand thread, and the lower part is a right-hand thread. When the upper part of the inner circumferential surface of the rotating sleeve 40 is a right-hand thread, the lower part is a left-hand thread. The outer circumferential surface of the upper threaded cylinder 31 and the outer circumferential surface of the lower threaded cylinder 22 are both provided with threads, and the threads on the outer circumferential surface of the upper threaded cylinder 31 are arranged in opposite directions to the threads on the outer circumferential surface of the lower threaded cylinder 22, which are adapted to the threads on the inner circumferential surface of the rotating sleeve 40.

[0051] By rotating the rotating sleeve 40, the upper threaded cylinder 31 and the lower threaded cylinder 22 can move away from or closer to each other at the same time, thereby achieving extension and retraction, and thus adjusting the height of the upper disk 30. The height adjustment range of the upper disk 30 can be set to extend by ten centimeters.

[0052] In one embodiment, a splicing hole 21 is provided on the bottom surface of the lower disk 20 for quick positioning and insertion with the positioning block 12.

[0053] In one embodiment, the wires can be routed through the second cavity 33 and the first cavity 23 to connect the wires to the lower disk 20 and the upper disk 30.

[0054] In one embodiment, the difference between this embodiment and the previous embodiment is that it further includes a locking mechanism. One second guide structure 32 is provided, specifically a cylindrical guide tube with holes that mate with the first guide structure. Two first guide structures 24 are provided, slidingly inserted into the second guide structure 32 to restrict the relative rotation between the second guide structure 32 and the first guide structure 24. The locking mechanism includes vertical toothed grooves 34 evenly distributed along the axis of the second guide structure 32 on its outer periphery. A rotating ring 41 is rotatably provided on the outer periphery of the rotating sleeve 40. An insert plate 42 is radially slidably provided on the outer periphery of the rotating sleeve 40. The insert plate 42 can be inserted into the toothed grooves 34 to restrict the rotation of the rotating sleeve 40, thereby locking the rotating sleeve 40 and preventing vibration during workpiece processing, which could cause the rotating sleeve 40 to rotate, thus changing the height of the entire magnetic chuck and affecting processing accuracy.

[0055] Specifically, a groove 44 is provided in the rotating ring 41, and one side of the groove 44 is a guide slope 45. A part of the insert plate 42 can extend into the groove 44. When the rotating ring 41 is rotated, the guide slope 45 presses the insert plate 42, so that the insert plate 42 can be pushed out of the groove 44. The other end of the insert plate 42 is inserted into the toothed groove 34, thereby restricting the rotation of the rotating sleeve 40. A spring 43 is provided on the outer periphery of the insert plate 42. When it is necessary to release the restriction, the rotating ring 41 is rotated in the opposite direction. Under the elastic force of the spring 43, the insert plate 42 is pushed back in a direction away from the axis of the rotating sleeve 40, so that the insert plate 42 is disengaged from the toothed groove 34. A part of the insert plate 42 re-enters the groove 44. At this time, the height of the upper disk 30 can be adjusted by rotating the rotating sleeve 40.

[0056] When in use, the appropriate number of magnetic chucks can be selected according to the size and outline of the workpiece and installed in the corresponding position to attract the workpiece. Unused fixed bases 10 can be covered with covers to isolate the circuit, prevent dust and debris, etc.

[0057] The usage method of the injection molding machine's fixed plate positioning magnetic chuck is as follows, please refer to... Figures 1 to 8 :

[0058] Modular layout and installation:

[0059] Based on the shape and size of the workpiece to be processed, plan the installation positions of the magnetic chucks on the fixture base plate. Multiple fixing bases 10 are evenly and securely installed on the fixture base plate by bolts passing through the bolt holes 11 on the fixing base 10 (see...). Figure 8Next, align the splicing hole 21 on the bottom surface of the lower disk 20 with the elliptical positioning block 12 on the top surface of the fixing base 10 and place it down to achieve quick and accurate positioning. After the lower disk 20 is in place, power it on; the magnetic force it generates will firmly attract the fixing base 10, completing the installation of a single module. Repeat this step to install the required number of suction cup modules. The connecting wires 13 on the fixing base 10 can be designed as flexible contacts or plugs, automatically establishing electrical connection when the lower disk 20 is installed, allowing for plug-and-play functionality.

[0060] Height adjustment:

[0061] Before or after the workpiece is placed on the upper disk 30, the adsorption height can be adjusted according to its thickness. If adjustment is required, a locking mechanism can be installed (see...). Figure 4 , 7 First, grasp and rotate the rotating ring 41. The spring 43 pushes the end of the insert plate 42 out of the toothed groove 34 of the second guide structure 32, releasing the lock on the rotating sleeve 40. Then, directly rotate the rotating sleeve 40. Since the upper and lower threads inside the rotating sleeve 40 rotate in opposite directions and mesh with the upper threaded cylinder 31 and the lower threaded cylinder 22 respectively, the rotation of the rotating sleeve 40 will simultaneously drive the upper disk 30 and the lower disk 20 to move closer or further apart. Since the lower disk 20 has been attracted and fixed, this actually manifests as the upper disk 30 rising and falling. The sliding fit between the first guide structure 24 and the second guide structure 32 effectively prevents the upper disk 30 from rotating during the rising and falling process, ensuring stability and accuracy. After adjusting to the required height, rotate the rotating ring 41. The guide slope 45 of the groove 44 presses the insert plate 42, pushing the insert plate 42 so that its end re-inserts into the toothed groove 34, achieving self-locking and preventing the rotating sleeve 40 from rotating during processing vibrations and causing changes in height.

[0062] Adsorption processing:

[0063] After adjusting and locking the height, place the workpiece on the upper disk 30, and then power on the upper disk 30. The lower disk 20 continuously adheres to and fixes the base 10 to ensure overall stability, while the upper disk 30 generates magnetic force to hold the workpiece in place, allowing for machining operations. The power supply lines for the upper disk 30 can be pre-installed inside the first cavity 23 of the lower threaded cylinder 22 and the second cavity 33 of the upper threaded cylinder 31, resulting in a neat appearance and good protection.

[0064] Reorganization and Maintenance:

[0065] When product replacement or rearrangement is required, disconnecting the power will remove the magnetism. The lower disk 20 and its entire assembly can then be directly removed from the mounting base 10 and repositioned as needed, greatly improving the versatility of the tooling system. For internal wiring maintenance, the entire height adjustment assembly can be unscrewed for inspection.

[0066] In summary, through the above-described structure and usage method, this utility model achieves rapid layout, flexible adjustment, reliable locking, and safe use of the magnetic chuck, fully demonstrating its modular, adjustable, and highly adaptable design advantages.

[0067] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0068] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0069] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A magnetic chuck for positioning a motorized injection molding plate, characterized in that, Including a fixed base (10), which is evenly distributed on the tooling base plate; The lower disk (20) is detachably mounted on the fixed base (10) and is configured to be electrically attracted to the fixed base (10); The upper disk (30) is located on top of the height adjustment assembly and is used to electrically adsorb workpieces; A height adjustment assembly is installed between the lower disk (20) and the upper disk (30); The height adjustment component includes a lower threaded cylinder (22) fixed to the top surface of the lower disk (20) and an upper threaded cylinder (31) fixed to the bottom surface of the upper disk (30). The lower threaded cylinder (22) and the upper threaded cylinder (31) are coaxially arranged and connected by a rotating sleeve (40) to adjust the distance between the upper disk (30) and the lower disk (20).

2. The injection molding machine stationary plate positioning magnetic chuck according to claim 1, characterized in that: The lower threaded cylinder (22) is fixed with a first guide structure (24), and the upper threaded cylinder (31) is fixed with a second guide structure (32). The first guide structure (24) is slidably inserted into the second guide structure (32) to restrict the relative rotation of the upper disk (30) and the lower disk (20).

3. The injection molding machine stationary plate positioning magnetic chuck according to claim 2, characterized in that: The upper threaded cylinder (31) and the lower threaded cylinder (22) are both provided with threads on their outer circumferences, and the threads are arranged in opposite directions. The rotating sleeve (40) is provided with threads on its inner circumference surface, and the threads on the inner circumference surface of the rotating sleeve (40) are divided into upper and lower parts. The threads of the upper part and the threads of the lower part are arranged in opposite directions, and the threads of the upper and lower parts respectively cooperate with the threads on the outer circumferences of the upper threaded cylinder (31) and the lower threaded cylinder (22).

4. The injection molding machine stationary plate positioning magnetic chuck according to claim 2, characterized in that: Two first guide structures (24) are provided, and the first guide structure (24) is specifically a guide rod with a rectangular cross-section; two second guide structures (32) are provided, and the second guide structure (32) is specifically a guide sleeve. A rectangular slot adapted to the guide rod is opened in the guide sleeve so that the guide rod can be slidably inserted into the guide sleeve.

5. The injection molding machine stationary plate positioning magnetic chuck according to claim 2, characterized in that: There are two first guide structures (24), and the two first guide structures (24) are slidably inserted into the second guide structure (32).

6. The injection molding machine stationary plate positioning magnetic chuck according to claim 2, characterized in that: It also includes a locking mechanism for locking the rotating sleeve (40), the locking mechanism including a plurality of vertical toothed grooves (34) disposed on the outer peripheral surface of the second guide structure (32), an insert plate (42) radially slidably disposed on the rotating sleeve (40), and a rotating ring (41) rotatably disposed on the outer peripheral surface of the rotating sleeve (40), one end of the insert plate (42) being able to be inserted into the toothed groove (34); one second guide structure (32) is provided, the second guide structure (32) specifically being a guide cylinder.

7. The injection molding machine plate positioning magnetic chuck according to claim 6, characterized in that: The rotating ring (41) has a groove (44) with a guide slope (45) inside. One end of the insert plate (42) can be inserted into the groove (44) and abut against the guide slope (45). A spring (43) is provided on the outer periphery of the insert plate (42).

8. The injection molding machine stationary plate positioning magnetic chuck according to claim 1, characterized in that: An elliptical positioning block (12) is fixed on the top surface of the fixed base (10), and a splicing hole (21) that cooperates with the positioning block (12) is opened on the bottom surface of the lower disk (20); two connecting wire heads (13) are provided on the top surface of the positioning block (12) for powering the lower disk (20).

9. The injection molding machine stationary plate positioning magnetic chuck according to claim 2, characterized in that: The lower threaded cylinder (22) has a first cavity (23) formed inside, and the upper threaded cylinder (31) has a second cavity (33) formed inside.

10. The injection molding machine stationary plate positioning magnetic chuck according to claim 9, characterized in that: The lines used to power the upper disk (30) pass through the first cavity (23) and the second cavity (33) in sequence and are connected to the upper disk (30).

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