Magnetic clamping tool for workpiece machining

By introducing intelligent temperature control components and magnetic clamping components into the magnetic clamping tool, the problems of complex operation and temperature control are solved, achieving simple clamping and temperature adjustment, ensuring that the magnet works within a suitable temperature range, and improving the reliability of the tool.

CN223643259UActive Publication Date: 2025-12-09DONGGUAN JULI MAGNETOELECTRIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422464414.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-12-09
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

Existing magnetic clamping tools are complex to operate and lack temperature control, making the magnets prone to damage when the temperature changes.

Method used

A magnetic clamping tool for workpiece processing was designed, which includes a magnetic clamping component and an intelligent temperature control component. Simple clamping is achieved by the attraction of opposite poles of the magnets, and temperature is regulated by a temperature sensor, heater and cooler to ensure that the magnets work within a suitable temperature range.

Benefits of technology

It achieves simple magnetic clamping and temperature control, avoiding damage to the magnet when the temperature changes, and improving the reliability and service life of the tool.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a magnetic clamping tool for workpiece machining, which belongs to the technical field of magnetic clamps and comprises a base, a magnetic clamping component and an intelligent temperature control component, the magnetic clamping component comprises two sliding grooves formed in the top of a workbench, and sliding guide rails are arranged at two ends of the inner wall of the workbench. Two fixing blocks are arranged on one sides of the inner walls of the two sliding guide rails, a connecting frame is arranged between the two fixing blocks, a rotating ring is rotationally connected to one side of the inner wall of the connecting frame, a first magnet block is arranged at one end of the rotating ring, a rotating rod is arranged on one side of the first magnet block, and a holding disc is arranged at the end of the rotating rod; the outer wall of the rotating rod is rotationally connected with the connecting frame, the fixing block and one side of the inner wall of the workbench, the other side of the inner wall of the sliding guide rail is slidably connected with two sliding blocks, and a second magnet block is arranged between the two sliding blocks.
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Description

Technical Field

[0001] This utility model belongs to the field of magnetic clamping technology, specifically relating to a magnetic clamping tool for workpiece processing. Background Technology

[0002] With the continuous advancement of automated processing technology, the handling and clamping of objects is indispensable. A search revealed that application number "CN201611251998.8" discloses "a clamping device utilizing magnetic force," which describes that "when the motor is energized in reverse, the motor reverses direction, driving the gear, which in turn drives the rack and slider to move to the other end. When the slider reaches the other end, the permanent magnet on the slider also moves. At this time, the permanent magnet on the slider and the permanent magnet on the jaws attract each other due to their opposite polarities, and the jaws clamp tightly under the magnetic force generated by the permanent magnets. Because the permanent magnets attract each other and adhere together, they are not easily separated." Therefore, an isolator is added between the slider and the jaws to facilitate separation. The clamping force can be adjusted by changing the width of the isolator. The upper part of the jaws drives the lower part inward. A rubber strip in the lower part of the jaws increases friction, thus stabilizing the grip. When the motor is reversed, it reverses direction, driving a gear that in turn drives a rack and slider to the other end. When the slider reaches the other end, the permanent magnet on it also moves. At this point, the permanent magnets on the slider and the jaws attract each other due to their opposite polarities, and the jaws clamp them together under the magnetic force generated by the permanent magnets. Because the permanent magnets are attracted and stuck together, they are not easy to separate. Therefore, an isolator is added between the slider and the jaws to facilitate separation. The clamping force can be adjusted by changing the width of the isolator. The upper part of the jaws drives the lower part to move inward. A rubber strip in the lower part of the jaws increases friction, thus stabilizing the grip on objects. However, the above-mentioned comparative documents still have the following problems in actual use:

[0003] In actual use, the operation is complicated and not convenient enough. Furthermore, the temperature cannot be controlled during use, which can easily damage the magnet if the weather suddenly changes from cold to hot.

[0004] Therefore, providing a tool that is easy to operate and capable of temperature control is highly practical. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic clamping tool for workpiece processing, thereby solving the aforementioned technical problems.

[0006] This utility model provides a magnetic clamping tool for workpiece processing, including a base, a magnetic clamping assembly, and an intelligent temperature control assembly.

[0007] The base has a worktable on top;

[0008] The magnetic clamping assembly includes two sliding grooves formed on the top of the worktable. Sliding guide rails are provided at both ends of the inner wall of the worktable. Two fixing blocks are provided on one side of the inner wall of the two sliding guide rails. A connecting frame is provided between the two fixing blocks. A rotating ring is rotatably connected to one side of the inner wall of the connecting frame. A first magnet is provided at one end of the rotating ring. A rotating rod is provided on one side of the first magnet. A gripping disc is provided at the end of the rotating rod. The outer wall of the rotating rod is rotatably connected to the connecting frame, the fixing blocks, and one side of the inner wall of the worktable. Two sliding blocks are slidably connected to the other side of the inner wall of the sliding guide rails. A second magnet is provided between the two sliding blocks.

[0009] The intelligent temperature control component includes a ventilation hole at the bottom of the inner wall of the workbench. A cooler is installed at one end of the bottom of the inner wall of the base. A delivery pipe is sealed and connected to the top of the cooler. The top of the delivery pipe passes through the top of the inner wall of the base and is sealed and connected to the ventilation hole. A heater is installed at the other end of the bottom of the inner wall of the base. A heat-conducting plate is installed on the top of the heater. The top of the heat-conducting plate passes through the top of the inner wall of the base and is fixedly connected to the bottom of the workbench. A temperature sensor is installed at one end of the connecting frame. A connecting plate is installed on one side of the base. A temperature controller is installed on the top of one side of the connecting plate.

[0010] In one embodiment of this utility model, the top of the second magnet block is provided with two sliders, and the top of the two sliders is provided with a first clamping plate.

[0011] In one embodiment of this utility model, a second clamping plate is provided on one side of the top of the workbench, and anti-slip pads are provided on one side of both the first clamping plate and the second clamping plate.

[0012] In one embodiment of this utility model, two fixed plates are provided at one end of the workbench, and a sliding rod is slidably connected inside the two fixed plates, with a connecting ring provided at the top of the sliding rod.

[0013] In one embodiment of this utility model, a fixing ring is provided on the outer wall of the slide rod, and a spring is provided on the top of the fixing ring. The top of the spring is fixedly connected to one of the fixing plates.

[0014] In one embodiment of this utility model, the outer wall of the rotating rod is provided with two clamping plates, and each of the two clamping plates has a slot in the middle. The sliding rod is inserted and connected to one of the slots. The bottom of the base is provided with two supporting legs, and a PLC controller is provided on one side of the bottom of the connecting plate.

[0015] In one embodiment of this utility model, the cooler, heater, temperature sensor, and temperature controller are all electrically connected to the PLC controller, and the PLC controller is electrically connected to an external power supply.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1) When clamping is needed, the user places the item on the workbench. The user then pulls the connecting ring, causing the slide bar to disengage from the slot. The slide bar moves upward, causing the spring to contract and store force. The user uses the clamping plate as a marker and rotates the gripping plate, causing the gripping plate to rotate, which in turn causes the first magnet to rotate. This changes the initial repulsive state of the first and second magnets to an attractive state of like poles. Using magnetism, the second magnet slides along the sliding guide rail via the sliding block, moving closer to the first magnet. This moves the two sliders, causing the sliders to bring the first clamping plate closer to the second clamping plate, thus clamping the material. After rotating one revolution, the connecting ring is released, allowing the spring to return to its original position. This then causes the slide bar to insert into the slot in another clamping plate, achieving fixation and thus simplifying magnetic clamping.

[0018] 2) The temperature sensor is conveniently activated by the user via the PLC controller, allowing the sensor to monitor the temperature inside the workbench in real time. The user can preset the normal value through the PLC controller. When the temperature is too low, the temperature sensor sends information back to the PLC controller, which then activates the heater. The heater transfers heat to the workbench through a heat conduction plate. When the temperature is too high, the temperature sensor sends information back to the PLC controller, which then activates the cooler. The cooler delivers cold air into the workbench through a delivery pipe, thereby cooling the workbench and preventing damage to the first and second magnet blocks due to excessively high or low temperatures. This achieves intelligent temperature control within the workbench. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0021] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0023] Figure 4 This is an enlarged schematic diagram of the spring structure of this utility model.

[0024] In the diagram: 100, base; 110, workbench; 200, magnetic clamping assembly; 210, sliding guide rail; 220, fixing block; 230, connecting frame; 240, rotating ring; 250, first magnet block; 260, rotating rod; 270, gripping plate; 280, sliding block; 290, second magnet; 300, intelligent temperature control assembly; 310, refrigerator; 320, delivery pipe; 330, heater; 340, heat conduction plate; 350, temperature sensor; 360, connecting plate; 370, temperature controller; 400, slider; 500, first clamping plate; 600, second clamping plate; 700, anti-slip pad; 800, fixing plate; 900, sliding rod; 1000, connecting ring; 1100, fixing ring; 1200, spring; 1300, clamping plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example

[0027] Please see Figure 1-4 A magnetic clamping tool for workpiece processing includes a base 100, a magnetic clamping assembly 200, and an intelligent temperature control assembly 300.

[0028] Please refer to the details. Figure 1 A worktable 110 is provided on the top of the base 100.

[0029] Please see Figure 2 The magnetic clamping assembly 200 includes two sliding grooves formed on the top of the worktable 110. Sliding guide rails 210 are provided at both ends of the inner wall of the worktable 110. Two fixing blocks 220 are provided on one side of the inner wall of the two sliding guide rails 210. A connecting frame 230 is provided in the middle of the two fixing blocks 220. A rotating ring 240 is rotatably connected to one side of the inner wall of the connecting frame 230. A first magnet block 250 is provided at one end of the rotating ring 240. A rotating rod 260 is provided on one side of the first magnet block 250. A gripping plate 270 is provided at the end of the rotating rod 260. The outer wall of the rotating rod 260 is rotatably connected to the connecting frame 230, the fixing blocks 220 and one side of the inner wall of the worktable 110. Two sliding blocks 280 are slidably connected to the other side of the inner wall of the sliding guide rails 210. A second magnet block 290 is provided in the middle of the two sliding blocks 280.

[0030] In one specific embodiment, the provided grip plate 270 facilitates the user's placement of items on the workbench 110 when clamping is required. The user then pulls the connecting ring 1000, causing the slide bar 900 to disengage from the slot. The slide bar 900 moves upward, causing the spring 1200 to contract and store force. The user uses the locking plate 1300 as a marker and rotates the grip plate 270, causing it to rotate and thus rotating the first magnet block 250. This causes the opposing poles of the first magnet block 250 and the second magnet block 290 to repel each other. When the state changes to one of attraction between like poles, the magnetism is used to make the second magnet 290 slide within the sliding guide rail 210 via the sliding block 280 and move closer to the first magnet 250. This causes the two sliders 400 to move, bringing the first clamping plate 500 closer to the second clamping plate 600 and clamping the material. After rotating one revolution, the connecting ring 1000 is released, causing the spring 1200 to return to its original position. This then causes the sliding rod 900 to insert into the slot in another clamping plate 1300 for fixation, thus achieving a simpler magnetic clamping.

[0031] Please see Figure 2-3 The intelligent temperature control component 300 includes a ventilation hole at the bottom of the inner wall of the workbench 110, a cooler 310 at one end of the bottom of the inner wall of the base 100, a conveying pipe 320 sealed and connected to the top of the cooler 310, the top of the conveying pipe 320 passing through the top of the inner wall of the base 100 and sealed and connected to the ventilation hole, a heater 330 at the other end of the bottom of the inner wall of the base 100, a heat-conducting plate 340 at the top of the heater 330, the top of the heat-conducting plate 340 passing through the top of the inner wall of the base 100 and fixedly connected to the bottom of the workbench 110, a temperature sensor 350 at one end of the connecting frame 230, a connecting plate 360 ​​at one side of the base 100, and a temperature controller 370 at the top of one side of the connecting plate 360.

[0032] In one specific embodiment, a temperature sensor 350 is provided, which can be easily activated by the user via a PLC controller. The temperature sensor 350 monitors the temperature inside the workbench 110 in real time. The user can preset normal values ​​through the PLC controller. When the temperature is too low, the temperature sensor 350 feeds the information back to the PLC controller, which then activates the heater 330. The heater 330 transfers heat to the workbench 110 through the heat conduction plate 340. When the temperature is too high, the temperature sensor 350 feeds the information back to the PLC controller, which then activates the cooler 310. The cooler 310 delivers cold air into the workbench 110 through the delivery pipe 320, thereby cooling the workbench 110 and preventing damage to the first magnet block 250 and the second magnet block 290 due to excessively high or low temperatures. This achieves intelligent temperature control within the workbench 110.

[0033] Please see Figure 1 The top of the second magnet block 290 is provided with two sliders 400, and the top of the two sliders 400 is provided with a first clamping plate 500.

[0034] In one specific embodiment, the provided slider 400 facilitates the support and fixation of the first clamping plate 500 during use, making the first clamping plate 500 more stable during use and preventing wobbling.

[0035] Please see Figure 1 A second clamping plate 600 is provided on one side of the top of the workbench 110, and anti-slip pads 700 are provided on one side of both the first clamping plate 500 and the second clamping plate 600.

[0036] In one specific embodiment, the anti-slip pad 700 is provided to prevent slippage during clamping, thus avoiding the possibility of the clamped item falling off and being damaged.

[0037] Please see Figure 4 Two fixed plates 800 are provided at one end of the workbench 110. The two fixed plates 800 are slidably connected to a slide rod 900 inside. A connecting ring 1000 is provided at the top of the slide rod 900.

[0038] In one specific embodiment, the fixed plate 800 facilitates the support and limiting of the slide rod 900 during use, making it more stable and preventing wobbling during use.

[0039] Please see Figure 4 The outer wall of the slide bar 900 is provided with a fixing ring 1100, and the top of the fixing ring 1100 is provided with a spring 1200. The top of the spring 1200 is fixedly connected to one of the fixing plates 800.

[0040] In one specific embodiment, the provided spring 1200 allows for the storage of force during use, so that when the external force disappears, the spring can rebound and reset.

[0041] Please see Figure 4 The outer wall of the rotating rod 260 is provided with two card plates 1300. Each of the two card plates 1300 has a slot in the middle. The slide rod 900 is inserted into one of the slots. The bottom of the base 100 is provided with two support legs. A PLC controller is provided on one side of the bottom of the connecting plate 360.

[0042] In one specific embodiment, the provided support legs facilitate the support and fixation of the base 100, making the base 100 more stable during use and avoiding wobbling that could lead to unstable clamping.

[0043] Please see Figure 1-4 The cooler 310, heater 330, temperature sensor 350 and temperature controller 370 are all electrically connected to the PLC controller, which is electrically connected to an external power supply.

[0044] In one specific embodiment, a PLC controller is provided to facilitate power control of electrical equipment, ensuring that the equipment is powered on when needed, thus avoiding situations where power cannot be supplied when power is required.

[0045] In use, the user first places the item on the workbench 110 when clamping is required. The user then pulls the connecting ring 1000, causing the slide bar 900 to disengage from the slot. The slide bar 900 moves upward, causing the spring 1200 to contract and store force. The user uses the clamping plate 1300 as a marker and rotates the gripping disc 270. This rotation of the gripping disc 270 then drives the first magnet block 250 to rotate, subsequently causing the first magnet block 250 and the second magnet block 290 to rotate. The original state of opposite poles repelling each other becomes a state of like poles attracting each other. Then, using magnetism, the second magnet block 290 slides along the sliding guide rail 210 via the sliding block 280, moving closer to the first magnet block 250. This causes the two sliders 400 to move, bringing the first clamping plate 500 closer to the second clamping plate 600, thus clamping the material. After rotating one revolution, the connecting ring 1000 is released, causing the spring 1200 to return to its original position, which in turn causes the sliding rod 900 to insert into the other... The magnetic clamping is achieved by fixing the magnetic block 250 in a slot within an outer card plate 1300. Finally, a temperature sensor 350 is provided, which can be activated by the user via a PLC controller. This allows the temperature sensor 350 to monitor the temperature within the workbench 110 in real time. The user can preset normal values ​​via the PLC controller. When the temperature is too low, the temperature sensor 350 sends information to the PLC controller, which then activates the heater 330. The heater 330 transfers heat to the workbench 110 via a heat-conducting plate 340. When the temperature is too high, the temperature sensor 350 sends information to the PLC controller, which then activates the cooler 310. The cooler 310 delivers cold air into the workbench 110 via a delivery pipe 320, thereby lowering the temperature and preventing damage to the first magnet block 250 and the second magnet block 290 due to excessively high or low temperatures. This achieves intelligent temperature control within the workbench 110.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic clamping tool for workpiece machining, characterized in that, include: A base (100) is provided with a worktable (110) on its top. A magnetic clamping assembly (200) includes two sliding grooves formed on the top of a workbench (110). Sliding guide rails (210) are provided at both ends of the inner wall of the workbench (110). Two fixing blocks (220) are provided on one side of the inner wall of the two sliding guide rails (210). A connecting frame (230) is provided in the middle of the two fixing blocks (220). A rotating ring (240) is rotatably connected to one side of the inner wall of the connecting frame (230). One side of the rotating ring (240)... A first magnet block (250) is provided at one end, and a rotating rod (260) is provided on one side of the first magnet block (250). A gripping plate (270) is provided at the end of the rotating rod (260). The outer wall of the rotating rod (260) is rotatably connected to one side of the inner wall of the connecting frame (230), the fixing block (220) and the worktable (110). Two sliding blocks (280) are slidably connected to the other side of the inner wall of the sliding guide rail (210). A second magnet block (290) is provided between the two sliding blocks (280). The intelligent temperature control component (300) includes a ventilation hole at the bottom of the inner wall of the workbench (110). A cooler (310) is provided at one end of the bottom of the inner wall of the base (100). A conveying pipe (320) is sealed and connected to the top of the cooler (310). The top of the conveying pipe (320) passes through the top of the inner wall of the base (100) and is sealed and connected to the ventilation hole. A heater (330) is provided at the other end of the bottom of the inner wall of the base (100). A heat-conducting plate (340) is provided at the top of the heater (330). The top of the heat-conducting plate (340) passes through the top of the inner wall of the base (100) and is fixedly connected to the bottom of the workbench (110). A temperature sensor (350) is provided at one end of the connecting frame (230). A connecting plate (360) is provided on one side of the base (100). A temperature controller (370) is provided on the top of one side of the connecting plate (360).

2. The magnetic clamping tool for workpiece processing according to claim 1, characterized in that: The top of the second magnet block (290) is provided with two sliders (400), and the top of the two sliders (400) is provided with a first clamping plate (500).

3. The magnetic clamping tool for workpiece processing according to claim 2, characterized in that: A second clamping plate (600) is provided on one side of the top of the workbench (110), and anti-slip pads (700) are provided on one side of both the first clamping plate (500) and the second clamping plate (600).

4. The magnetic clamping tool for workpiece processing according to claim 3, characterized in that: Two fixed plates (800) are provided at one end of the workbench (110), and a slide rod (900) is slidably connected inside the two fixed plates (800). A connecting ring (1000) is provided at the top of the slide rod (900).

5. A magnetic clamping tool for workpiece machining according to claim 4, characterized in that: The outer wall of the slide bar (900) is provided with a fixing ring (1100), and the top of the fixing ring (1100) is provided with a spring (1200), the top of the spring (1200) being fixedly connected to one of the fixing plates (800).

6. A magnetic clamping tool for workpiece machining according to claim 4, characterized in that: The outer wall of the rotating rod (260) is provided with two card plates (1300), and the middle of the two card plates (1300) is provided with a slot. The sliding rod (900) is inserted and connected to one of the slots. The bottom of the base (100) is provided with two support legs. A PLC controller is provided on one side of the bottom of the connecting plate (360).

Citation Information

Patent Citations

  • Clamping device utilizing magnetic force

    CN106672621A