A placing rack for neodymium iron boron magnetic steel machining

Abstract

The utility model relates to the neodymium iron boron magnetic steel processing technical field, concretely relates to a kind of rack for neodymium iron boron magnetic steel processing, including support table and the assembly station of installation in support table top, assembly station is set multiple sliding slots;First sliding block is slidably arranged in sliding slot, first electromagnetic block is arranged in the top of first sliding block;Adjusting screw one end is fixed in the length extension end of first electromagnetic block and the width direction one side, every group two adjusting screws are passed through baffle and are limited by two side lock nuts, form vertical included angle positioning structure;After loosening lock nut and adjusting baffle position, locking positioning;First electromagnetic block is powered to adsorb fixed magnetic steel;Second electromagnetic block assembly is additionally arranged in assembly station sliding slot;Second electromagnetic block is independently powered off to target area when cutting, so that cut-out steel block automatically separates from nondestructive, other areas remain adsorbed stable;The device is cooperated by partition magnetic control and physical positioning, solve the technical problem of removing damage workpiece of broken block.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron magnet processing technology, and in particular to a placement rack for processing neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are widely used due to their excellent magnetic properties, but securing them during precision machining processes such as cutting is a key challenge. Commonly used physical clamps or vacuum chucks have significant limitations: for the strongly magnetic NdFeB magnets themselves, traditional mechanical clamps require extremely high clamping forces to counteract the deformation or displacement caused by the release of internal stress, potentially damaging the magnets; while non-contact vacuum chucks may lack sufficient suction force during high-precision machining, especially when the magnet surface is uneven or through holes need to be machined, easily leading to vacuum loss and fixation failure; these fixation methods cannot dynamically adjust the fixation area according to the tool path during cutting, and the cut fragments or steel blocks, once unconstrained, are easily flung with the tool, potentially damaging the tool and equipment travel, causing magnet fragment loss, or posing safety risks. Therefore, the key technical challenges are: how to achieve effective, damage-free fixation of NdFeB magnets during machining, dynamically address the safety issues (flying, tool obstruction) caused by steel blocks detaching from the fixation in the cutting area, and simultaneously ensure overall fixation stability.

[0003] To address these challenges, the industry has explored an improved solution: this solution uses movable physical blocks on the processing platform to enclose and position the magnet, while integrating an integrated electromagnetic chuck below the support surface. Its working principle utilizes the property of neodymium iron boron magnets to be attracted by magnetic fields: the operator first places the magnet on the platform, and then uses adjustable blocks along the platform edge to form a rectangular enclosure, initially limiting the magnet's position. After positioning, the electromagnetic chuck is activated, generating a strong, uniform magnetic field that penetrates the non-metallic worktable surface, firmly adsorbing the entire magnet onto the support surface, overcoming the pressure damage and insufficient vacuum suction problems of traditional clamps. When cutting is required, the magnet is strongly magnetically adsorbed, and even the cut steel pieces are still attracted by the bottom magnetic field, preventing them from immediately flying away, thus solving the problem of splattering caused by fixation failure to some extent. This technology, through the adjustment of the positioning range by physical blocks and overall magnetic adsorption fixation, achieves stronger contactless fixation and basic safety protection than traditional methods.

[0004] However, while existing technologies improve fixation strength and basic safety, they introduce new operational complexities and potential risks. The core drawback is that electromagnetic adsorption cannot be controlled independently in sections, severely limiting operational flexibility. When the magnet is cut into multiple pieces, and the operator needs to remove certain pieces (e.g., to make room for subsequent cutting processes or to prevent cut pieces from interfering with the tool's path), because the bottom electromagnetic chuck is opened / closed as a whole, the operator can only choose to either completely de-energize to release all pieces, or keep the power on but manually pry the target piece off the magnetic adsorption. The former may cause other pieces that still need fixing to become unstable and shift, or even tip over and collide, resulting in scrap; the latter requires the operator to be close to the edge of the cutting area. The process involves handling the magnets with risks of being scratched by tools or debris, and forcibly prying them can easily cause brittle magnet fragments to chip or even break due to uneven magnetic attraction (resulting in material loss). Residual magnetism also increases the difficulty of removing fragments (requiring overcoming magnetic slippage or lifting). Furthermore, once the fixed stop is positioned, adjustments can only be made manually by unlocking the slider and then relocking it. For small-batch, multi-sized magnet processing, repeatedly adjusting the stop is time-consuming and labor-intensive, impacting efficiency. Therefore, the limitations of existing technology are exposed in the pursuit of more precise zone control, higher operational efficiency, and greater safety and convenience in removing fragments. Utility Model Content

[0005] The purpose of this utility model is to provide a placement rack for processing neodymium iron boron magnets, which solves the technical problems of existing electromagnetic chucks, such as difficulty in removing cut fragments due to the inability to control the overall magnetic attraction in sections, easy damage to workpieces and safety risks due to manual forced prying, and the cumbersome and time-consuming mechanical baffle adjustment process, which affects the processing efficiency of multi-size magnets.

[0006] To achieve the above objectives, this utility model provides a placement rack for processing neodymium iron boron magnets, comprising four sets of adjusting screws, each set consisting of two screws. Each set of adjusting screws is disposed inside a baffle, and locking nuts are threadedly installed on both sides of the adjusting screws at the through-hole of the baffle. One end of each adjusting screw is fixedly installed on the length extension end of two first electromagnetic blocks and on one side of the width direction of the first electromagnetic blocks, so that the baffle naturally forms a vertical angle for positioning the neodymium iron boron magnets.

[0007] The first electromagnetic block has three sets of first locking holes at its top along its length, and a first sliding block is attached to the bottom of the first electromagnetic block, which is slidably disposed in the sliding groove.

[0008] The first sliding block has three sets of first locking screw holes on its top along its length extension direction, and a first locking screw passes through each of the first locking holes.

[0009] Wherein, the end of the first locking screw passes through the first locking hole and is connected to the first locking screw hole by threads, so that the first sliding block is pressed and fixed in the sliding groove.

[0010] The sliding grooves are in multiple sets, which are opened in parallel on the top of the assembly table. A second sliding block is also slidably installed in the sliding groove, and a second electromagnetic block is attached to the top of the second sliding block.

[0011] The second sliding block has three sets of second locking screw holes along its length extension direction at its top end, and the ends of the second locking screws are respectively installed in the second locking screw holes by threads.

[0012] The second locking screw is respectively inserted into the second locking hole, and the second sliding block is pressed into the sliding groove and fixed by the threaded screw. The second locking hole is respectively opened on the second electromagnetic block.

[0013] The assembly platform is bolted to the top of the support platform at its four corners. The support platform has fixing holes at its four corners, and bolts are inserted through the fixing holes to achieve overall fixation.

[0014] This utility model discloses a placement rack for processing neodymium iron boron magnets. Its core structure relies on four sets of specifically arranged adjusting screws for functional positioning. Each set of adjusting screws consists of two independent rods that penetrate the interior of a baffle in a parallel manner. Locking nuts are threaded onto both sides of the through-hole in the baffle. The fixed ends of the adjusting screws are connected to specific positions on two first electromagnetic blocks: one end is connected to the extended end of the first electromagnetic block along its length, and the other end is vertically fixed to the side wall of the other first electromagnetic block along its width. This directional connection creates a stable vertical intersection between the two adjusting screws and the first electromagnetic blocks, thus allowing the penetrated baffle to naturally maintain a vertical angle configuration, forming a precise positioning reference surface without the need for additional auxiliary structures.

[0015] During operation, after loosening the locking nuts on both sides of the baffle, the baffle can be slid along the adjusting screw axis to the predetermined position, and then the nuts on both sides can be tightened to limit the displacement of the baffle. This design allows the baffle to continuously adjust the positioning range according to the processing requirements of NdFeB magnets of different sizes, forming a stable and reliable lateral constraint space. When the magnet is placed into the area defined by the vertical angle of the baffle, the first electromagnetic block fixed at the bottom of the adjusting screw is energized to activate the magnetic field, generating an adsorption force perpendicular to the support surface, which tightly adsorbs the magnet onto the positioning surface without contact. This process completely avoids the risk of surface pressure damage caused by mechanical clamping and pressure, and at the same time, the uniform distribution of the magnetic field ensures that the magnet maintains positional stability during processing vibrations and avoids displacement.

[0016] The system achieves efficient physical positioning and non-destructive control of the fixing process through the synergy of three factors: the self-generating geometric constraints of the screw and baffle, the rapid adjustment mechanism of the nut locking, and the electromagnetic non-contact adsorption. In particular, the independent electromagnetic unit (second electromagnetic block) partition control technology can precisely cut off the magnetic force of the electromagnetic block in the cutting area during processing, so that the cut steel block automatically detaches from the adsorption without external prying. This completely eliminates the risk of magnet breakage caused by the forced removal of fragments in traditional overall magnetic attraction solutions. At the same time, the continuous adsorption force in the non-cutting area ensures the stability of the processing body, providing a support foundation for the processing of neodymium iron boron magnets that combines precision, safety, and flexibility. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the assembly table in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the first sliding block and the second sliding block in an embodiment of this utility model.

[0021] Figure 4 This is an embodiment of the present utility model. Figure 3 An enlarged diagram of A in the diagram.

[0022] In the diagram: 101, adjusting screw; 102, baffle; 103, locking nut; 104, first electromagnetic block; 105, first locking hole; 106, first sliding block; 107, sliding groove; 108, first locking screw hole; 109, first locking screw; 110, assembly platform; 111, second sliding block; 112, second electromagnetic block; 113, second locking screw hole; 114, second locking screw; 115, second locking hole; 116, support platform; 117, fixing hole. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Please see Figures 1-4 .

[0025] This utility model provides a placement rack for processing neodymium iron boron magnets. The entire structure is supported by a support platform 116. Fixing holes 117 at the four corners of the support platform 116 are used for bolt fixation, providing a stable foundation. An assembly platform 110 is bolted to the top of the support platform 116. Multiple sliding grooves 107 are parallel to the plane at the top of the assembly platform 110, providing displacement tracks for the modular support structure. Two types of support modules can be independently assembled within the sliding grooves 107: a first sliding block 106 is embedded within the sliding groove 107 and slides freely; a second sliding block 106... The top of the sliding block 106 is fitted with the first electromagnetic block 104. The top of the first electromagnetic block 104 has three sets of first locking holes 105 along its length. The first locking screw 109 passes through the first locking hole 105. The end of the first locking screw 109 passes through the first locking hole 105 and is screwed into the first locking screw hole 108 corresponding to the top of the first sliding block 106. When the first locking screw 109 is tightened, the first sliding block 106 is pressed and fixed in the sliding groove 107, so that the first electromagnetic block 104 is stably supported in the set position.

[0026] The first electromagnetic block 104 has two sets of vertically arranged connecting structures, one on one side of the width direction and the other at the extended length end, with two adjusting screws 101 in each set passing through the interior of the baffle 102. Each adjusting screw 101 has a locking nut 103 threadedly installed on both sides of the penetration point of the baffle 102. When the locking nut 103 is loosened, the baffle 102 can move along the adjusting screw 101. After adjusting to the target position, tightening the locking nuts 103 on both sides can fix the baffle 102. At this time, the baffle 102 naturally forms a vertical angle under the constraint of the two vertically intersecting adjusting screws 101, which is used for the lateral positioning of the neodymium iron boron magnet.

[0027] The second electromagnetic block 112 serves as an extended support unit, with its bottom attached to the second sliding block 111. The second sliding block 111 slides within the sliding groove 107 of the same group. The second electromagnetic block 112 has a second locking hole 115, through which a second locking screw 114 passes. The end of the second locking screw 114 is screwed into the second locking screw hole 113 at the top of the second sliding block 111. By tightening pressure, the second sliding block 111 is fixed within the sliding groove 107, allowing the second electromagnetic block 112 to be independently adjusted to expand the support area. During magnet processing, the neodymium iron boron magnet to be processed is placed within the vertical angle formed by the baffle 102 for initial positioning. After the first electromagnetic block 104 and the second electromagnetic block 112 are energized, they generate a strong magnetic attraction force to completely fix the magnet to the support surface. When the cutting tool approaches the second electromagnetic block 112 at the bottom, the power can be cut off individually to release the magnetic steel fragments in the cutting area, preventing them from obstructing the tool path or causing splash damage; the remaining energized areas continuously provide attraction force to ensure the stability of the main structure. The whole system is controlled by modular electromagnetic partitions to balance safety and processing continuity.

[0028] Working principle: Before using the placement rack, the operator needs to adjust it according to the size of the NdFeB magnet to be processed. First, loosen the locking nuts 103 on both sides of the baffle 102, slide the baffle 102 along the adjusting screw 101 to the appropriate distance, and then tighten the locking nuts 103 on both sides to fix the position of the baffle 102. One end of the adjusting screw 101 is fixedly connected to two vertically arranged first electromagnetic blocks 104. When the adjusting screw 101 moves the baffle 102, the baffle 102 will naturally form a vertical angle structure under the constraint of the first electromagnetic blocks 104. This structure provides a reference frame for the subsequent positioning of the magnet. At this time, the vertical baffle 102 initially constrains the lateral position of the magnet. Before placing the magnet, the bottom support structure also needs to be adjusted. The first sliding block 106, whose bottom end is attached to the first electromagnetic block 104, can slide freely within multiple parallel sliding grooves 107 opened on the top of the assembly table 110. By loosening the first locking screw 109 that passes through the first locking hole 105 at the top of the first electromagnetic block 104, its end is disengaged from the corresponding first locking screw hole 108 on the first sliding block 106, thus releasing the fixation. This allows the first sliding block 106, together with the first electromagnetic block 104, to be slid to the required support position. After it is in place, the first locking screw 109 is retightened so that its end is screwed into the first locking screw hole 108, which forces the first sliding block 106 to be pressed and fixed within the sliding groove 107. At the same time, in the sliding groove 107 where the first electromagnetic block 104 is not installed, the magnetic base can also be adjusted. Multiple second electromagnetic blocks 112 are selectively installed to meet the support requirements. The second sliding blocks 111 below them also slide within the sliding groove 107 and are positioned and fixed by a second locking screw 114 passing through the second locking hole 115 on the second electromagnetic block 112. When the second locking screw 114 is tightened, its end screws into the second locking screw hole 113 at the top of the second sliding block 111, thus pressing and fixing the second sliding block 111 within the sliding groove 107. Therefore, multiple independently adjustable first electromagnetic blocks 104 and second electromagnetic blocks 112 together construct a positioning and support array that matches the geometry of the magnets. The entire assembly platform 110 is fastened to the support platform 116 with bolts. The fixing holes 117 at the four corners of the support platform 116 allow access via the ground. Anchor bolts and other components are used to secure the entire structure, ensuring operational stability. After position adjustment, the operator places the neodymium iron boron magnet on the support surface, ensuring its side is flush against the vertical angle formed by the baffle 102 for rough positioning. Subsequently, the first electromagnetic block 104 and the second electromagnetic block 112 are energized to activate their magnetism. Due to strong magnetic attraction, the magnet is firmly attracted and fixed within the positioning structure formed by the vertical baffle 102 and on the surface of the bottom electromagnetic block, preventing displacement caused by processing vibration and ensuring processing accuracy. In key processes such as magnet cutting, this design demonstrates its core technological advantages: when the cutting tool path needs to pass through the area of ​​the second electromagnetic block 112, the electromagnetic block in that area can be selectively de-energized and demagnetized, allowing the cut steel block to detach from the magnet while the remaining areas remain firmly fixed.After power is cut off, the steel block can be safely removed, preventing it from obstructing the cutting tool's stroke or causing secondary damage to the cutting equipment. Simultaneously, the retained electromagnetic blocks continue to provide fixing force to the main structure, maintaining stable and continuous processing. If the entire workpiece needs to be removed, all electromagnetic blocks can be de-energized to release the magnets. The entire system works collaboratively, flexibly adapting to the positioning of magnets of different sizes through the adjustment of the screw 101-baffle 102 structure. Modular, position-adjustable electromagnetic blocks achieve strong magnetic adsorption and fixation, providing precise zoned control during cutting, ultimately achieving the goal of safely and efficiently supporting and protecting the magnetic workpiece.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A placement rack for processing neodymium iron boron magnets, comprising four sets of adjusting screws (101), characterized in that: Each set of adjusting screws (101) consists of two screws. Each set of adjusting screws (101) is installed through the inside of the baffle (102). Locking nuts (103) are threadedly installed on both sides of the adjusting screws (101) at the through-hole of the baffle (102). One end of the adjusting screw (101) is fixedly installed on the extension end of the two first electromagnetic blocks (104) and on one side of the width direction of the first electromagnetic blocks (104), so that the baffle (102) naturally forms a vertical angle for positioning the neodymium iron boron magnet.

2. The placement rack for processing neodymium iron boron magnets as described in claim 1, characterized in that: The first electromagnetic block (104) has three sets of first locking holes (105) at its top end along its length extension direction, and the first electromagnetic block (104) has a first sliding block (106) attached to its bottom end, and the first sliding block (106) is slidably disposed in the sliding groove (107).

3. The placement rack for processing neodymium iron boron magnets as described in claim 2, characterized in that: The first sliding block (106) has three sets of first locking screw holes (108) on its top along its length extension direction, and a first locking screw (109) passes through each of the first locking holes (105).

4. The placement rack for processing neodymium iron boron magnets as described in claim 3, characterized in that: The end of the first locking screw (109) passes through the first locking hole (105) and is connected to the first locking screw hole (108) by threads, so that the first sliding block (106) is pressed and fixed in the sliding groove (107).

5. The placement rack for processing neodymium iron boron magnets as described in claim 4, characterized in that: The sliding grooves (107) are in multiple sets and are opened in parallel on the top of the assembly table (110). A second sliding block (111) is also slidably installed in the sliding grooves (107), and a second electromagnetic block (112) is attached to the top of the second sliding block (111).

6. The placement rack for processing neodymium iron boron magnets as described in claim 5, characterized in that: The top of the second sliding block (111) has three sets of second locking screw holes (113) along its length extension direction. The ends of the second locking screws (114) are respectively installed in the second locking screw holes (113) by threads.

7. The placement rack for processing neodymium iron boron magnets as described in claim 6, characterized in that: The second locking screw (114) is respectively inserted into the second locking hole (115), and the second sliding block (111) is pressed into the sliding groove (107) and fixed by threading. The second locking hole (115) is respectively opened on the second electromagnetic block (112).

8. The placement rack for processing neodymium iron boron magnets as described in claim 7, characterized in that: The assembly platform (110) is bolted to the top of the support platform (116) at its four corners. The support platform (116) has fixing holes (117) at its four corners, and bolts are used to pass through the fixing holes (117) to achieve overall fixation.

Images