Quick-mounting magnetic chuck

Abstract

The utility model discloses a quick -wearing formula magnetism sucking disc relates to magnetic fixture technical field, including the bottom plate of being fixed on the workbench through screw, the bottom plate is placed with the disk body, and the disk body both sides are fixedly connected with the connecting plate, is equipped with the pressing plate on the connecting plate, and the pressing plate is installed with locking mechanism symmetry on. The locking mechanism includes the locating pipe, the lock core column, the spring, the stop head and the clamping ball, and the locating pipe penetrates the pressing plate, the connecting plate and the bottom plate, and the bottom plate is equipped with the connecting hole and the annular groove, when the lock core column resets under the spring effect, the clamping ball embeds the annular groove and realizes locking, and the lock core column is pressed and then removes the locking. The structure cooperates through the pressing plate and the locking mechanism, realizes the quick connection and disassembly of disk body and bottom plate, improves the assembly efficiency and the positioning accuracy, has simple structure, convenient operation, locking reliable advantage, is applicable to the quick clamping operation under a variety of working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of clamp installation technology, specifically relating to a quick-installation magnetic chuck. Background Technology

[0002] Magnetic chucks, as a common clamping device, are widely used in metal processing, welding positioning, and mechanical clamping. They primarily rely on suction to quickly attract and fix workpieces, featuring a compact structure and convenient operation. In practical applications, to enhance the adaptability and versatility of the chuck, it is usually mechanically connected to the worktable using screws or bolts to ensure stability and repeatability during use.

[0003] However, in existing technologies, most magnetic chucks rely on screw fastening structures for installation and disassembly. This is not only cumbersome, requiring tools to tighten each screw individually, but also presents problems such as inconvenient positioning, low installation and disassembly efficiency, and high manual labor intensity when frequently changing or moving the chuck's position. Furthermore, traditional threaded fixing methods cannot quickly achieve a reliable connection or release between the chuck and the worktable, making them inflexible for processing scenarios that require frequent changes in suction position.

[0004] On the other hand, although some existing structures are equipped with quick-release mechanisms, they generally suffer from problems such as insufficient locking stability, difficulty in confirming the locking state, and limited service life. Especially under conditions of strong vibration, high load, or repeated disassembly and assembly, the locking mechanism is prone to failure or the suction cup may shift, posing safety hazards. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a quick-install magnetic chuck, which is easy to operate, has reliable locking, and can be quickly installed and disassembled, thereby overcoming the problems of low installation and disassembly efficiency and unstable locking in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-release magnetic chuck includes a base plate connected to a workbench by screws, with a disk body placed on the upper surface of the base plate;

[0008] Both sides of the disk body are fixedly connected to connecting plates, and pressure plates are provided on the upper end surface of the connecting plates. Locking mechanisms are symmetrically arranged on the pressure plates.

[0009] The locking mechanism is used to secure the disk body to the base plate;

[0010] The upper end face of the base plate is symmetrically provided with a connecting hole, and an annular groove is provided inside the connecting hole;

[0011] The locking mechanism includes a positioning tube that passes through the pressure plate, a lock cylinder is movably connected inside the positioning tube, a spring is sleeved on the lock cylinder, a stop is provided at the bottom of the lock cylinder, and a locking ball is provided between the lock cylinder and the stop.

[0012] A locking hole is provided through the positioning tube;

[0013] When the lock cylinder is pressed, the locking ball will roll into the space between the stop and the lock cylinder;

[0014] When the lock cylinder is released, the locking ball will be pushed into the locking hole by the elastic force of the spring, and the locking ball will be locked into the annular groove.

[0015] Furthermore, the stop head is shaped like a frustum, and the bottom edge of the lock cylinder has an arc-shaped chamfer.

[0016] Furthermore, the locking ball cannot completely penetrate the locking hole.

[0017] Furthermore, a connecting seat is symmetrically and fixedly connected to the upper end face of the pressure plate, and the connecting seat is provided with a threaded hole;

[0018] The positioning tube passes through the threaded hole, and the positioning tube is provided with a connecting thread that connects to the threaded hole.

[0019] Furthermore, a cover is fixedly connected to the outer side of the upper end of the positioning tube;

[0020] When the positioning tube is connected to the connector, the cover rests against the connector.

[0021] Furthermore, a pressing head is fixedly connected to the top of the lock cylinder, and the top of the spring abuts against the bottom of the pressing head;

[0022] The through hole of the positioning tube is stepped, and the bottom of the spring rests against the stepped hole.

[0023] Furthermore, the upper end face of the connecting plate is symmetrically provided with positioning holes;

[0024] When the disk body is fixed to the base plate, the positioning tube passes through the positioning hole.

[0025] Furthermore, the upper end face of the base plate is symmetrically provided with countersunk holes for installing screws to fix the base plate.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] Traditional magnetic chuck installation relies on screws, which is cumbersome, inefficient, and unsuitable for scenarios requiring frequent changes or repositioning of the clamping point. This invention, through the design of a positioning tube, connecting seat, pressure plate, and locking mechanism, achieves rapid connection and stable assembly between the disk body and the base plate. In particular, the locking mechanism incorporates a locking ball, locking pin, stop, spring, and locking hole, combined with an annular groove design on the base plate, enabling quick assembly and disassembly of the disk body without tools. This improves assembly efficiency, reduces labor intensity, and is suitable for rapid replacement needs in high-frequency operating conditions.

[0028] Existing magnetic chuck locking structures often suffer from low positioning accuracy and poor locking reliability, leading to chuck loosening or displacement during use. This invention addresses these issues with a multi-stage positioning structure using a positioning tube penetrating between the pressure plate, connecting plate, and base plate. Combined with the limiting fit between the annular groove in the connecting hole and the locking ball, the ball can automatically embed into the groove when the lock cylinder is reset. This ensures high repeatability and stability of the chuck in the locked state, effectively improving clamping reliability during machining or welding processes.

[0029] Some existing quick-release mechanisms have complex structures or short assembly lifespans, making it difficult to maintain locking force and structural stability during long-term, repeated use. The lock cylinder in this invention features a chamfered bottom and a frustum-shaped stop, which, combined with the rolling guidance of the locking ball, optimizes the guiding and assembly smoothness during mechanism operation, reducing the risk of ball wear and jamming. Simultaneously, the springs arranged through a stepped hole structure achieve balanced application of elastic force, helping the lock cylinder maintain its elastic return capability over a long period, thus improving the service life and reliability of the entire quick-release device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the disk body of this utility model;

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

[0033] Figure 4 This is a schematic diagram of the structure of the pressure plate of this utility model;

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

[0035] Figure 6 This is a schematic diagram of the lock cylinder of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. The disk itself;

[0038] 11. Connecting plate; 111. Positioning hole;

[0039] 2. Base plate;

[0040] 21. Countersunk hole; 22. Connecting hole; 221. Annular groove;

[0041] 3. Pressure plate;

[0042] 31. Connecting seat; 311. Threaded hole;

[0043] 4. Locking mechanism;

[0044] 41. Positioning tube; 411. Locking hole; 412. Connecting thread; 413. Cover;

[0045] 42. Lock cylinder pin; 421. Press head;

[0046] 43. Spring;

[0047] 44. Headbutt; 45. Positioning the ball. Detailed Implementation

[0048] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0049] See Figure 1-6 A quick-release magnetic chuck includes a base plate 2 connected to a worktable by screws, with a disk body 1 placed on the upper surface of the base plate 2. The disk body 1 has a matrix-arranged magnetic block array for adsorbing and fixing workpieces. The base plate 2 has a rectangular steel plate structure with a thickness and rigidity matched to ensure stable support for the disk body 1. Countersunk holes 21 for screw fixing are provided at the four corners of the base plate 2. The base plate 2 is installed by screws passing through the countersunk holes 21 and locking it to the worktable. Connectors are fixedly connected to both sides of the disk body 1. Plate 11, connecting plate 11 is used to cooperate with pressure plate 3 and locking mechanism 4 to achieve quick fixation; pressure plate 3 is provided on the upper end surface of connecting plate 11, pressure plate 3 is a long strip plate structure, and locking mechanism 4 is symmetrically arranged on pressure plate 3; locking mechanism 4 is used to firmly fix disk body 1 to the upper end surface of base plate 2 to achieve quick assembly and disassembly; connecting hole 22 is symmetrically opened through the upper end surface of base plate 2, and an annular groove 221 is machined on the inner wall of connecting hole 22. The annular groove 221 is used to engage the locking ball 45 in locking mechanism 4 to form a reliable mechanical locking structure.

[0050] The locking mechanism 4 includes a positioning tube 41 that penetrates the pressure plate 3. The positioning tube 41 is a hollow tubular component used to accommodate the lock cylinder 42 and is screwed and fixed to the pressure plate 3 and the connecting seat 31. The lock cylinder 42 is movably connected inside the positioning tube 41. The outer diameter of the lock cylinder 42 slides with the inner diameter of the positioning tube 41. A spring 43 is sleeved on the lock cylinder 42. The top of the spring 43 abuts against the bottom of the pressing head 421, and the bottom abuts against the stepped hole in the positioning tube 41, realizing the spring force reset function of the lock cylinder 42. A stop head 44 is provided at the bottom of the lock cylinder 42. The diameter of the stop head 44 is larger than that of the lock cylinder 42. It is installed at the bottom end of the lock cylinder 42 as a limiting end piece. It is realized by the chamfer and the rolling cooperation of the locking ball 45. Automatic positioning; a locking ball 45 is provided between the lock cylinder 42 and the stop 44. The locking ball 45 is a high-hardness steel ball that can achieve radial disengagement or locking state when the lock cylinder 42 moves axially during assembly; a locking hole 411 is provided through the positioning tube 41. The locking hole 411 is used to cooperate with the locking ball 45 and the annular groove 221 for limiting and locking; when the lock cylinder 42 is pressed, the locking ball 45 will roll into the space between the stop 44 and the lock cylinder 42, releasing the locked state; when the lock cylinder 42 is released, under the elastic force of the spring 43, the locking ball 45 will be squeezed into the locking hole 411 and locked into the annular groove 221, completing the quick locking installation of the suction cup.

[0051] See Figure 5-6 The stop 44 is shaped like a frustum. The tapered structure of the frustum can guide the ball 45 into the slot, preventing the ball from getting stuck during assembly or use. The bottom edge of the lock cylinder 42 is provided with an arc-shaped chamfer. This chamfer structure can form an introductory surface, allowing the ball 45 to slide smoothly into the locking hole 411 and into the annular groove 221 under the force of the spring 43, further improving the stability and reliability of the locking action.

[0052] See Figure 5-6 The locking ball 45 cannot completely penetrate the locking hole 411. The diameter of the locking hole 411 is designed to be smaller than the diameter of the locking ball 45, so as to ensure that the locking ball 45 is partially embedded in the locking hole 411 and forms a mechanical limiting contact with the annular groove 221 in the locked state, thus ensuring the stability and safety of the disk body 1 during operation.

[0053] See Figure 4-5 The upper end face of the pressure plate 3 is symmetrically and fixedly connected to a connecting seat 31. The connecting seat 31 is a cylindrical structural component and is fixed to the upper end face of the pressure plate 3 by welding or bolts. The connecting seat 31 has a threaded hole 311, which is used to engage with the connecting thread 412 of the positioning tube 41. The positioning tube 41 passes through the threaded hole 311 and is fastened to it through the connecting thread 412, thereby driving the entire locking mechanism 4 to be pressed vertically into the connecting hole 22 of the bottom plate 2.

[0054] See Figure 4-5 A cover 413 is fixedly connected to the outer side of the upper end of the positioning tube 41. The cover 413 is an annular flange structure with an outer diameter larger than that of the connecting seat 31. When the positioning tube 41 is screwed into the connecting seat 31, the cover 413 eventually abuts against the upper end face of the connecting seat 31 to form a stop structure, preventing the positioning tube 41 from being screwed in too deeply or from coming out of the connecting seat 31.

[0055] See Figure 5-6 A pressing head 421 is fixedly connected to the top of the lock cylinder 42. The pressing head 421 is a cylindrical protrusion used to manually press down to release the locked state. The top of the spring 43 abuts against the bottom of the pressing head 421 to provide the reset elastic force of the lock cylinder 42. The through hole of the positioning tube 41 has a stepped structure. The lower diameter of the stepped hole is smaller and the upper diameter is larger. It is used to cooperate with the sliding positioning of the lock cylinder 42 and the compression preload of the spring 43, respectively, to ensure the overall working coordination and stability of the locking mechanism 4.

[0056] See Figure 1-2 The upper end face of the connecting plate 11 is symmetrically provided with a positioning hole 111. The positioning hole 111 is used to constrain the insertion position of the positioning tube 41, so that the locking mechanism 4 forms a precise positioning connection with the disk body 1 and the base plate 2. When the disk body 1 is fixed on the base plate 2, the positioning tube 41 passes through the positioning hole 111 and is inserted into the connecting hole 22 of the base plate 2. Finally, the locking ball 45 is embedded in the annular groove 221 to achieve locking.

[0057] See Figure 1-3 The upper end face of the base plate 2 is symmetrically provided with a countersunk hole 21. The countersunk hole 21 is a countersunk hole structure, and its diameter matches the outer diameter of the screw. It is used to install and fix the screw of the base plate 2. The screw is fastened to the workbench surface through the countersunk hole 21 to ensure the stability and impact resistance of the base plate 2 throughout the entire use process.

[0058] The working principle of this utility model is as follows:

[0059] In use, place the disk body 1 on the upper surface of the base plate 2, and fix the base plate 2 to the workbench by screws passing through the countersunk holes 21. The connecting plate 11 of the disk body 1 is fixed by the pressure plate 3, and the two ends of the pressure plate 3 are provided with locking mechanisms 4 to realize quick assembly and disassembly between the disk body 1 and the base plate 2.

[0060] The specific working process of the locking mechanism 4 is as follows: When it is necessary to fix the disk body 1 to the base plate 2, the positioning tube 41 is first passed through the connecting seat 31 on the pressure plate 3 and the positioning hole 111 on the connecting plate 11 in sequence, and the lower end of the positioning tube 41 is inserted into the connecting hole 22 of the base plate 2; during the process of screwing the positioning tube 41 into the threaded hole 311 of the connecting seat 31, the connecting thread 412 cooperates with the threaded hole 311, driving the positioning tube 41 to move downward until its cover 413 abuts against the upper surface of the connecting seat 31, so as to achieve a stable connection.

[0061] Subsequently, pressing down on the pressing head 421 of the lock cylinder 42 causes the spring 43 to compress, and the locking ball 45 disengages from the locking hole 411 and enters the cavity between the stop head 44 and the lock cylinder 42. At this time, the positioning tube 41 can be freely inserted and removed for quick disassembly. When the pressing head 421 is released, the lock cylinder 42 automatically rebounds under the elastic force of the spring 43, and the locking ball 45 enters the locking hole 411 under the elastic pressure and engages with the annular groove 221 in the connecting hole 22 of the base plate 2, thus achieving locking.

[0062] Since the stop 44 is frustum-shaped and the bottom of the lock cylinder 42 has an arc-shaped chamfer, it can guide the locking ball 45 to roll smoothly into the locking hole 411 and ensure that the locking ball 45 cannot completely penetrate the locking hole, thereby achieving a reliable mechanical limiting and locking effect.

[0063] In summary, the entire assembly and disassembly process of the quick-release magnetic chuck achieves efficient and rapid installation and disassembly through the coordinated operation of the pressure plate 3, locking mechanism 4, and connecting hole 22, thereby improving ease of use and structural stability.

[0064] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A quick-release magnetic chuck, characterized in that: Includes a base plate (2) connected to the workbench by screws, and a disk body (1) is placed on the upper surface of the base plate (2); Both sides of the disk body (1) are fixedly connected to a connecting plate (11), and a pressure plate (3) is provided on the upper end surface of the connecting plate (11). A locking mechanism (4) is symmetrically provided on the pressure plate (3). The locking mechanism (4) is used to fix the disk body (1) to the base plate (2); The upper end face of the base plate (2) is symmetrically provided with a connecting hole (22), and an annular groove (221) is provided inside the connecting hole (22); The locking mechanism (4) includes a positioning tube (41) that passes through the pressure plate (3). The positioning tube (41) is movably connected to a lock cylinder (42). A spring (43) is sleeved on the lock cylinder (42). A stop (44) is provided at the bottom of the lock cylinder (42). A locking ball (45) is provided between the lock cylinder (42) and the stop (44). A locking hole (411) is provided through the positioning tube (41); When the lock cylinder pin (42) is pressed, the locking ball (45) will roll into the space between the stop (44) and the lock cylinder pin (42); When the lock cylinder (42) is released, the locking ball (45) will be squeezed into the locking hole (411) under the elastic force of the spring (43), and the locking ball (45) will be locked into the annular groove (221).

2. The quick-release magnetic chuck according to claim 1, characterized in that: The stop (44) is shaped like a frustum, and the bottom edge of the lock cylinder (42) is provided with an arc-shaped chamfer.

3. The quick-release magnetic chuck according to claim 1, characterized in that: The locking ball (45) cannot completely penetrate the locking hole (411).

4. A quick-release magnetic chuck according to claim 1, characterized in that: The upper end face of the pressure plate (3) is symmetrically and fixedly connected to a connecting seat (31), and the connecting seat (31) is provided with a threaded hole (311); The positioning tube (41) passes through the threaded hole (311), and the positioning tube (41) is provided with a connecting thread (412) that connects to the threaded hole (311).

5. A quick-release magnetic chuck according to claim 4, characterized in that: A cover (413) is fixedly connected to the outer side of the upper end of the positioning tube (41); When the positioning tube (41) is connected to the connecting seat (31), the cover (413) abuts against the connecting seat (31).

6. A quick-release magnetic chuck according to claim 1, characterized in that: A pressing head (421) is fixedly connected to the top of the lock cylinder (42), and the top of the spring (43) abuts against the bottom of the pressing head (421); The through hole of the positioning tube (41) is stepped, and the bottom of the spring (43) rests against the stepped hole.

7. A quick-release magnetic chuck according to claim 1, characterized in that: The upper end face of the connecting plate (11) is symmetrically provided with a positioning hole (111); When the disk body (1) is fixed on the base plate (2), the positioning tube (41) passes through the positioning hole (111).

8. A quick-release magnetic chuck according to claim 1, characterized in that: The upper end face of the base plate (2) is symmetrically provided with countersunk holes (21), which are used to install screws to fix the base plate (2).

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