A quick clamping and positioning device for processing special-shaped permanent magnet

Abstract

The application relates to the technical field of magnet processing equipment, in particular to a quick clamping and positioning device for special-shaped permanent magnet processing, which comprises a machine tool body, a clamping mechanism is arranged in the machine tool body, the clamping mechanism comprises a first clamping plate and a second clamping plate, clamping pieces are arranged at the first clamping plate and the second clamping plate, clamping grooves are arranged at the clamping pieces, and the clamping mechanism further comprises a locking mechanism; a machining mechanism for machining a magnet to be machined is further arranged at the machine tool body, and a driving mechanism for driving the clamping mechanism to move to the machining mechanism is arranged in the machine tool body. The replaceable clamping piece structure can form multi-point surface contact with the non-machining end surface of the special-shaped magnet, disperses the clamping stress, and reduces local stress concentration. Compared with a general fixture, the structure can reduce the probability of workpiece deviation after clamping and workpiece movement during machining, and is helpful to the size precision and shape tolerance level of the workpiece.

Description

Technical Field

[0001] This invention relates to the field of magnet processing equipment technology, and more specifically, to a quick clamping and positioning device for processing irregularly shaped permanent magnets. Background Technology

[0002] Permanent magnets, as essential basic functional components, are widely used in many fields such as industrial motors, new energy equipment, and precision electronic instruments. With the continuous upgrading of downstream product structures, the market demand for irregularly shaped permanent magnets is gradually increasing. In the cutting and grinding processes of irregularly shaped permanent magnets, clamping and positioning are crucial steps to ensure machining accuracy. The ease of clamping operations and the stability of the clamping state directly affect the workpiece's machining quality and overall production efficiency.

[0003] Currently, the clamping structures used in the machining of irregularly shaped permanent magnets are mostly general-purpose fixtures or simple custom-made fixtures. The clamping surfaces of general-purpose fixtures are mostly regular planes, making it difficult to achieve a full fit with the contours of irregularly shaped permanent magnets. After clamping, the workpiece is prone to uneven force distribution and positioning misalignment, potentially leading to relative movement during machining, which is detrimental to ensuring the dimensional accuracy and geometric tolerances of the workpiece. Furthermore, conventional fixtures involve numerous locking and unlocking steps, requiring significant time for position adjustment and locking operations during each loading and unloading operation. In batch processing scenarios, there is considerable room for improvement in clamping efficiency.

[0004] In addition, most existing clamping devices are usually fixed at the machining station, with workpiece loading / unloading and machining operations completed at the same station, which can easily lead to problems with process continuity. Some movable clamping structures have insufficient positioning accuracy after transfer, often requiring manual recalibration, making it difficult to maintain stable clamping and positioning accuracy while achieving workpiece transfer. Therefore, developing a clamping and positioning device that can adapt to the shape of irregular permanent magnets, achieve rapid locking and positioning, and cooperate with machining processes to complete workpiece transfer is of positive practical significance for improving the machining effect of irregular permanent magnets and increasing production efficiency. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0006] A quick clamping and positioning device for machining irregularly shaped permanent magnets includes a machine tool body. The machine tool body has a clamping mechanism, which includes a first clamping plate and a second clamping plate. Both the first and second clamping plates have clamping pieces and clamping grooves. The clamping grooves on the first and second clamping plates abut against each other to form a clamping cavity for clamping the magnet to be machined. The clamping mechanism also includes a locking mechanism for locking the first and second clamping plates. The machine tool body also has a machining mechanism for machining the magnet to be machined, and a drive mechanism for moving the clamping mechanism to the machining mechanism is also provided within the machine tool body.

[0007] As a preferred embodiment of the present invention, the clamping mechanism further includes a connecting plate fixedly connected to the first clamping plate. The connecting plate is arranged perpendicular to the first clamping plate. The clamping mechanism also includes a motor mounting base. A clamping mechanism drive motor is provided at the motor mounting base. The rotating shaft of the clamping mechanism drive motor is connected to the connecting plate. The clamping mechanism drive motor is used to drive the magnet to be processed to rotate in a vertical plane.

[0008] As a preferred embodiment of the present invention, the clamping mechanism is provided with a connecting post mounting through hole penetrating the two clamping plates and the first clamping plate. The locking mechanism includes a connecting post disposed at the second clamping plate and passing through the connecting post mounting through hole. The end of the connecting post passing through the connecting post mounting through hole is provided with a locking adjustment plate. The middle part of the locking adjustment plate is provided with an adjustment screw hole. An adjustment screw is provided in the adjustment screw hole. The end of the adjustment screw is used to rotate to abut against the first clamping plate so that the clamping groove at the first clamping plate and the clamping groove at the second clamping plate abut together.

[0009] As a preferred embodiment of the present invention, the end of the adjusting screw away from the first clamping plate is provided with an internal hexagonal blind hole.

[0010] As a preferred embodiment of the present invention, a fixing mechanism for fixing the adjusting screw is provided between the first clamping plate and the adjusting screw. The fixing mechanism includes a plurality of slots, which are disposed at the adjusting screw and are evenly distributed circumferentially around the central axis of the adjusting screw. A fixing ring mounting groove is provided at the opposite end face of the first clamping plate and the adjusting screw. A fixing ring is slidably disposed in the fixing ring mounting groove. The fixing ring is provided with a locking tooth that cooperates with the slot. A half-threaded bolt for limiting the fixing ring is provided in the fixing ring mounting groove. A spring is sleeved on the half-threaded bolt. The spring is used to push the locking tooth of the fixing ring into the slot to fix the adjusting screw.

[0011] As a preferred embodiment of the present invention, the first clamping plate is provided with a reset groove communicating with the mounting groove of the fixing ring, the side wall of the fixing ring extends into the reset groove to form a reset ear, and the locking adjustment plate is provided with an adjustment plate through hole corresponding to the reset ear.

[0012] As a preferred embodiment of the present invention, both the first clamping plate and the second clamping plate are bolted to the clamping piece at their respective ends.

[0013] As a preferred embodiment of the present invention, the driving mechanism includes a set of linear slide rails arranged along the length of the machine tool body. The driving mechanism also includes a slide table mounting base, a slide table that cooperates with the linear slide rails is provided at the slide table mounting base, a lead screw is rotatably provided at the machine tool body, a lead screw nut seat that cooperates with the lead screw is provided at the slide table mounting base, a connecting member is provided between the lead screw nut seat and the motor mounting base, and the two ends of the connecting member are bolted to the lead screw nut seat and the motor mounting base respectively. A lead screw drive motor is provided on the outer side wall of the machine tool body to drive the lead screw to rotate and drive the lead screw nut seat to move.

[0014] As a preferred embodiment of the present invention, the machine tool body is provided with an optical axis, and the connecting part is provided with an optical axis through hole for the optical axis to pass through and which is in clearance fit with the optical axis.

[0015] As a preferred embodiment of the present invention, the processing mechanism includes a mounting plate disposed in the machine tool body, the bottom end of the mounting plate being located above the motor mounting base, at least three processing motors being provided at the mounting plate, and grinding heads, drilling heads and polishing heads being respectively connected to the rotating shafts of the at least three processing motors; a lead screw module for driving the processing motors to move vertically is provided at the mounting plate, and a tool drive motor cooperating with the lead screw module is provided at the machine tool body.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention employs a replaceable clamping plate structure, which can form multi-point surface contact with the non-machined end surface of irregularly shaped magnets, dispersing clamping forces and reducing local stress concentration. Compared with general-purpose fixtures, this structure can reduce the probability of workpiece offset after clamping and movement during processing, helping to stabilize the dimensional accuracy and geometric tolerance levels of the workpiece.

[0018] 2. This invention allows for the adjustment of the distance between the first and second clamping plates using a single adjusting screw, thus completing the clamping and releasing of the workpiece with a simple operation path. Simultaneously, a fixing mechanism consisting of a slot, a retaining ring, retaining teeth, and a spring is provided. After adjustment, the spring automatically pushes the retaining teeth into the slot, achieving circumferential locking of the adjusting screw. This eliminates the need for additional multi-step locking operations, effectively simplifying the clamping process and helping to improve the loading and unloading efficiency of batch processing.

[0019] 3. This invention employs a drive mechanism consisting of a linear guide rail, a lead screw, and a lead screw nut seat to drive the clamping mechanism to reciprocate between the loading station and the processing station. The lead screw drive provides stable positional accuracy, and combined with the guiding effect of the linear guide rail, the clamping mechanism achieves good consistency in its positioning, eliminating the need for repeated manual calibration and reducing auxiliary time for station switching. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the quick clamping and positioning device for processing irregularly shaped permanent magnets in Example 1;

[0021] Figure 2 This is a cross-sectional view of the quick clamping and positioning device for machining irregularly shaped permanent magnets in Example 1;

[0022] Figure 3 This is a cross-sectional view of the quick clamping and positioning device for machining irregularly shaped permanent magnets in Example 1;

[0023] Figure 4 for Figure 2 Enlarged view of section A;

[0024] Figure 5 This is a schematic diagram of the clamping mechanism in Example 1;

[0025] Figure 6 This is an exploded view of part of the clamping mechanism in Example 1;

[0026] Figure 7 This is a schematic diagram of the adjusting screw in Example 1;

[0027] Figure 8 for Figure 6 Enlarged view of section B;

[0028] Figure 9 This is a schematic diagram of the processing mechanism in Example 1.

[0029] The attached figures are labeled as follows:

[0030] 100. Machine tool body; 110. Lead screw drive motor; 120. Tool drive motor; 210. Connecting plate; 220. Motor mounting base; 230. Clamping mechanism drive motor; 310. Linear slide rail; 320. Slide table mounting base; 330. Slide table; 340. Lead screw; 350. Lead screw nut seat; 360. Connecting piece; 361. Through hole for optical axis; 370. Optical axis; 380. Mounting plate; 410. First clamping plate; 420. Second clamping plate; 430. Clamping piece; 440. Clamping slot; 450. Clamping Cavity; 510, Connecting post mounting through hole; 520, Connecting post; 530, Locking adjustment plate; 540, Adjusting screw hole; 550, Adjusting screw; 551, Internal hexagon blind hole; 560, Adjusting plate through hole; 610, Slot; 710, Fixing ring mounting slot; 720, Fixing ring; 730, Slot tooth; 740, Half-thread bolt; 750, Spring; 760, Reset slot; 770, Reset ear; 810, Machining motor; 820, Grinding head; 830, Drilling head; 840, Polishing head; 850, Lead screw module. Detailed Implementation

[0031] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0032] Example 1, combined with Figures 1 to 9 As shown, this embodiment provides a quick clamping and positioning device for processing irregularly shaped permanent magnets, which includes a machine tool body 100. The machine tool body 100 is provided with a clamping mechanism, a locking mechanism, a driving mechanism and a processing mechanism. The clamping mechanism is used to clamp and position the irregularly shaped magnet to be processed. The driving mechanism is used to drive the clamping mechanism to move between the loading station and the processing station. The processing mechanism is used to perform corresponding processing steps on the clamped and fixed magnet.

[0033] like Figure 1 , Figure 8 As shown, the drive mechanism is arranged along the length of the machine tool body 100, including a set of linear slide rails 310, which are fixedly installed on the internal table surface of the machine tool body 100. The drive mechanism also includes a slide table mounting base 320, with a slide table 330 at the bottom of the slide table mounting base 320. The slide table 330 slides in cooperation with the linear slide rails 310, allowing the slide table mounting base 320 to slide back and forth along the linear slide rails 310. A lead screw 340 is mounted inside the machine tool body 100, with the axis of the lead screw 340 parallel to the extension direction of the linear slide rails 310. A lead screw nut seat 350 is fixedly installed on the side of the slide table mounting base 320, and the lead screw nut seat 350 is threadedly engaged with the lead screw 340. A lead screw drive motor 110 is installed on the outer side wall of the machine tool body 100. The output shaft of the lead screw drive motor 110 is connected to the end of the lead screw 340. The lead screw 340 is driven to rotate by the lead screw drive motor 110, which can drive the lead screw nut seat 350 and the slide table mounting seat 320 to move along the linear slide rail 310.

[0034] A connector 360 is provided between the lead screw nut seat 350 and the motor mounting seat 220. Both ends of the connector 360 are bolted to the lead screw nut seat 350 and the motor mounting seat 220 respectively, realizing the transmission connection between the drive mechanism and the clamping mechanism. A parallel optical axis 370 is also arranged within the machine tool body 100. An optical axis through hole 361 is provided on the connector 360. The optical axis 370 passes through the optical axis through hole 361 and is clearance-fitted with it, used to assist in guiding the movement of the connector 360 and improve the stability of the clamping mechanism's transport process.

[0035] Combination Figure 2 , Figure 5As shown, the clamping mechanism is mounted on the drive mechanism via a motor mounting base 220. The clamping mechanism includes a clamping mechanism drive motor 230, which is fixedly mounted on the motor mounting base 220. A connecting plate 210 is fixedly connected to the shaft of the clamping mechanism drive motor 230. The connecting plate 210 is perpendicular to the first clamping plate 410, and its surface is fixedly connected to the side end face of the first clamping plate 410. When the clamping mechanism drive motor 230 operates, it can drive the first clamping plate 410 and the clamped magnet to be processed to rotate in a vertical plane via the connecting plate 210, thereby adjusting the processing angle of the magnet.

[0036] like Figure 4 , Figure 6 As shown, the clamping body of the clamping mechanism includes a first clamping plate 410 and a second clamping plate 420 arranged opposite to each other. Clamping pieces 430 are provided on the opposite end faces of both the first clamping plate 410 and the second clamping plate 420, and both the first clamping plate 410 and the second clamping plate 420 are bolted to their corresponding clamping pieces 430. The clamping pieces 430 can be replaced with appropriate sizes according to the shape of the magnet to be processed. Clamping grooves 440 are provided on the opposite end faces of both clamping pieces 430. When the first clamping plate 410 and the second clamping plate 420 abut against each other, the clamping grooves 440 on both sides together form a clamping cavity 450, which is used to accommodate and clamp the non-processed end of the magnet to be processed.

[0037] Combination Figure 3 , Figure 6 As shown, the locking mechanism is used to lock and fix the first clamping plate 410 and the second clamping plate 420. The clamping mechanism has a connecting post mounting through hole 510, which passes through the two clamping plates 430 and the first clamping plate 410. The locking mechanism includes a connecting post 520, one end of which is fixedly mounted on the second clamping plate 420, and the other end passes through the connecting post mounting through hole 510 and extends outward; a locking adjustment plate 530 is fixedly mounted on the end of the connecting post 520 passing through the connecting post mounting through hole 510. An adjusting screw hole 540 is provided in the middle of the locking adjusting plate 530, and an adjusting screw 550 is threaded into the adjusting screw hole 540. When the adjusting screw 550 is rotated, its end near the first clamping plate 410 can gradually abut against the outer end face of the first clamping plate 410, pushing the first clamping plate 410 along the connecting post 520 toward the second clamping plate 420, so that the clamping grooves 440 on both sides gradually abut against each other, completing the clamping of the magnet to be processed. An internal hexagon blind hole 551 is provided at the end of the adjusting screw 550 away from the first clamping plate 410, so that the operator can use an internal hexagon tool to turn the adjusting screw 550.

[0038] Reference Figure 6 , Figure 7As shown, a fixing mechanism is provided between the first clamping plate 410 and the adjusting screw 550 to circumferentially limit the adjusting screw 550 after it is locked, reducing the possibility of the adjusting screw 550 loosening itself during processing. The fixing mechanism includes several slots 610, which are formed on the shaft of the adjusting screw 550 and are evenly distributed circumferentially around the central axis of the adjusting screw 550. A fixing ring mounting groove 710 is provided on the outer end face of the first clamping plate 410 opposite to the adjusting screw 550. A fixing ring 720 is slidably disposed in the fixing ring mounting groove 710. A retaining tooth 730 is provided on the side of the fixing ring 720 facing the adjusting screw 550, and the retaining tooth 730 can engage with the slot 610. A semi-threaded bolt 740 is installed in the mounting groove 710 of the fixed ring. The semi-threaded bolt 740 is used to limit the sliding stroke of the fixed ring 720. A spring 750 is sleeved on the shaft of the semi-threaded bolt 740. The two ends of the spring 750 abut against the bottom of the mounting groove 710 and the end face of the fixed ring 720, respectively. Under normal conditions, the spring 750 is in a compressed state, pushing the fixed ring 720 to move towards the adjusting screw 550, so that the retaining tooth 730 engages in the corresponding retaining groove 610, thereby achieving circumferential fixation of the adjusting screw 550.

[0039] A reset groove 760 is also provided at the first clamping plate 410, which is connected to the fixing ring mounting groove 710. The side wall of the fixing ring 720 extends outward to form a reset ear 770, which extends into the reset groove 760. An adjustment plate through hole 560 is provided on the locking adjustment plate 530 at the position corresponding to the reset ear 770. The operator can push the push rod through the adjustment plate through hole 560 and push the reset ear 770 inward along the reset groove 760, which will cause the fixing ring 720 to further compress the spring 750 and slide away from the adjustment screw 550, so that the retaining tooth 730 disengages from the retaining groove 610. At this time, the adjustment screw 550 can be rotated freely to adjust the tightness of the clamping.

[0040] like Figure 9 As shown, the machining mechanism is located at the machining station of the machine tool body 100, including a mounting plate 380. The mounting plate 380 is fixedly mounted inside the machine tool body 100, and the bottom end of the mounting plate 380 is located above the motor mounting base 220. At least three machining motors 810 are provided at the mounting plate 380. The shafts of each machining motor 810 are respectively connected to grinding heads 820, drilling heads 830, and polishing heads 840, which can sequentially complete multiple processes such as grinding, drilling, and polishing of the magnet to be processed. A lead screw module 850 is also provided at the mounting plate 380. The lead screw module 850 is used to drive the machining motors 810 to feed in the vertical direction. A tool drive motor 120 is installed at the machine tool body 100. The tool drive motor 120 and the lead screw module 850 are in transmission cooperation to provide power for the feed action of the grinding heads 820, drilling heads 830, and polishing heads 840.

[0041] The working process of the quick clamping and positioning device for machining irregularly shaped permanent magnets in this embodiment is as follows:

[0042] Before clamping, select the corresponding clamping plate 430 according to the shape and size of the irregular magnet to be processed. Fix the two clamping plates 430 to the opposite end faces of the first clamping plate 410 and the second clamping plate 420 respectively with bolts, so that the clamping grooves 440 on both sides can jointly enclose a clamping cavity 450 that matches the shape of the non-processed end of the magnet.

[0043] During loading, the operator pushes the push rod through the through hole 560 of the adjusting plate and pushes the reset ear 770 inward, causing the fixing ring 720 to compress the spring 750 and move it towards the bottom of the fixing ring mounting groove 710, so that the retaining tooth 730 disengages from the retaining groove 610 and releases the circumferential limit on the adjusting screw 550; then, an Allen wrench is inserted into the Allen blind hole 551 and the adjusting screw 550 is turned to increase the distance between the first clamping plate 410 and the second clamping plate 420, leaving sufficient loading space. After placing the unprocessed end of the magnet into the corresponding position between the two clamping slots 440, turn the adjusting screw 550 in the opposite direction to push the first clamping plate 410 along the connecting column 520 toward the second clamping plate 420 until the groove wall of the clamping slot 440 is fully in contact with the outer wall of the magnet and the clamping force meets the processing requirements. At this time, pull out the push rod, the spring 750 resets and pushes the fixing ring 720 toward the adjusting screw 550, and the locking teeth 730 engage in the corresponding slots 610, thus locking the adjusting screw 550 and completing the workpiece clamping.

[0044] After clamping, the lead screw drive motor 110 starts, driving the lead screw 340 to rotate. This rotation, via the lead screw nut seat 350 and connecting piece 360, moves the entire clamping mechanism along the linear slide rail 310 to the machining station below the machining mechanism. During machining, the tool drive motor 120 drives the lead screw module 850 to rotate, causing the corresponding machining motor 810 to feed downwards. The magnet undergoes multi-stage machining via the grinding head 820, drilling head 830, and polishing head 840. If the machining angle needs adjustment, the clamping mechanism drive motor 230 can rotate the magnet in a vertical plane via the connecting plate 210, adapting to different machining surface requirements. At the end of the machining process, a wire cutting device can be installed to separate the machined magnet body from the reserved non-machined end; alternatively, the workpiece can be removed as a whole and a separate cutting process can be performed.

[0045] After processing, the clamping mechanism drive motor 230 drives the clamping mechanism and the workpiece to rotate, using centrifugal force to dislodge metal debris adhering to the workpiece surface and the gap between the clamping mechanism. Subsequently, the lead screw drive motor 110 rotates in the reverse direction, driving the clamping mechanism back to the loading station. After the clamping mechanism returns to the loading station, the clamping mechanism drive motor 230 adjusts the angle of the clamping mechanism so that the operating side of the adjusting screw 550 faces the operator. The operator then pushes the reset ear 770 again to release the limit of the fixing mechanism by pushing the push rod, and loosens the adjusting screw 550 to remove the processed workpiece. If separation has been completed at the wire cutting station, the material removed at this time is the residual material from the non-processed end of the magnet, thus completing a single processing cycle.

[0046] The quick clamping and positioning device for processing irregularly shaped permanent magnets in this embodiment achieves the following effects through the above technical solution:

[0047] 1. The quick clamping and positioning device for machining irregularly shaped permanent magnets in this embodiment adopts a replaceable clamping plate 430 structure. The clamping plate 430 is provided with clamping grooves 440 that match the shape of the magnet to be processed. The clamping grooves 440 on both sides form a clamping cavity 450, which can form multi-point surface contact with the non-processed end surface of the irregularly shaped magnet, disperse the clamping force, and reduce local stress concentration. At the same time, the clamping plate 430 is bolted to the first clamping plate 410 and the second clamping plate 420, and the corresponding clamping plate 430 can be quickly replaced according to the irregularly shaped magnets of different specifications, thus having a wider range of adaptability. Compared with general-purpose fixtures, this structure can reduce the probability of workpiece displacement after clamping and movement during processing, which helps to stabilize the dimensional accuracy and geometric tolerance level of the workpiece.

[0048] 2. In this embodiment, the quick clamping and positioning device for machining irregularly shaped permanent magnets can adjust the distance between the first clamping plate 410 and the second clamping plate 420 using a single adjusting screw 550, thus completing the clamping and releasing of the workpiece. The operation path is simple. Simultaneously, a fixing mechanism consisting of a slot 610, a fixing ring 720, a locking tooth 730, and a spring 750 is provided. After adjustment, the spring 750 automatically pushes the locking tooth 730 into the slot 610, achieving circumferential locking of the adjusting screw 550. No additional multi-step locking operations are required, effectively simplifying the clamping process and helping to improve the loading and unloading efficiency of batch processing. Furthermore, this fixing structure can restrict the circumferential rotation of the adjusting screw 550, reducing the risk of the adjusting screw 550 loosening due to vibration during processing and maintaining the stability of the clamping force. The operator only needs to push the reset ear 770 through the through hole 560 of the adjusting plate to release the lock; the unlocking operation is equally convenient, balancing locking reliability and operational convenience.

[0049] 3. In this embodiment, the quick clamping and positioning device for machining irregularly shaped permanent magnets employs a drive mechanism consisting of a linear slide rail 310, a lead screw 340, and a lead screw nut seat 350. This mechanism drives the clamping mechanism to reciprocate between the loading station and the machining station. The lead screw 340 provides stable positional accuracy, and combined with the guiding effect of the linear slide rail 310, the clamping mechanism achieves good consistency in its final position, eliminating the need for repeated manual calibration and reducing auxiliary time spent switching stations. Furthermore, the addition of an optical shaft 370 that engages with the optical shaft through hole 361 on the connecting piece 360 ​​further enhances the stability of the transfer process, reduces wobbling during the movement of the clamping mechanism, and prevents positional shifts in the clamped workpiece. By separating the loading / unloading station from the machining station, parallel connection between loading preparation and machining operations can be achieved, optimizing the overall process rhythm.

[0050] 4. The quick clamping and positioning device for processing irregularly shaped permanent magnets in this embodiment drives the clamping mechanism to rotate in a vertical plane via the clamping mechanism drive motor 230, bringing multiple practical benefits. First, during processing, the orientation and angle of the workpiece can be adjusted by rotation, cooperating with the processing mechanism to complete multi-faceted and multi-angle processing of the magnet, reducing the number of secondary clamping operations and expanding the applicable processing scenarios of the device. Second, after processing, the rotation of the clamping mechanism can use centrifugal force to dislodge metal debris attached to the workpiece surface and in the gap of the clamping cavity 450, reducing the workload of subsequent cleaning. Third, after the clamping mechanism returns to the loading station, it can be rotated to adjust the angle so that the operating side of the adjusting screw 550 faces the operator, facilitating the operator to perform screwing and adjustment operations, further improving the convenience of loading and unloading. Fourth, during the rotation of the clamping mechanism, the fixed ring 720 tends to move towards the adjusting screw 550 due to centrifugal force, which can further push the clasp 730 to engage with the clasp 610, enhancing the tightness of the locking state, and maintaining the locking reliability of the adjusting screw 550 even under rotational machining conditions.

[0051] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A quick clamping and positioning device for machining irregularly shaped permanent magnets, characterized in that: The machine tool body (100) includes a clamping mechanism, which includes a first clamping plate (410) and a second clamping plate (420). Both the first clamping plate (410) and the second clamping plate (420) are provided with clamping pieces (430), and the clamping pieces (430) are provided with clamping grooves (440). The clamping grooves (440) at the first clamping plate (410) and the clamping grooves (440) at the second clamping plate (420) are used to abut together to form a clamping cavity (450) for clamping the magnet to be processed. The clamping mechanism also includes a locking mechanism for locking the first clamping plate (410) and the second clamping plate (420). The machine tool body (100) is also provided with a processing mechanism for processing the magnet to be processed. The machine tool body (100) is provided with a driving mechanism for driving the clamping mechanism to move to the processing mechanism.

2. The quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 1, characterized in that: The clamping mechanism also includes a connecting plate (210) fixedly connected to the first clamping plate (410). The connecting plate (210) is set perpendicular to the first clamping plate (410). The clamping mechanism also includes a motor mounting base (220). A clamping mechanism drive motor (230) is provided at the motor mounting base (220). The rotating shaft of the clamping mechanism drive motor (230) is connected to the connecting plate (210). The clamping mechanism drive motor (230) is used to drive the magnet to be processed to rotate in a vertical plane.

3. The quick clamping and positioning device for processing irregularly shaped permanent magnets according to claim 2, characterized in that: The clamping mechanism is provided with a connecting post mounting through hole (510) that passes through the two clamping plates (430) and the first clamping plate (410). The locking mechanism includes a connecting post (520) located at the second clamping plate (420) and passing through the connecting post mounting through hole (510). The end of the connecting post (520) that passes through the connecting post mounting through hole (510) is provided with a locking adjustment plate (530). The middle part of the locking adjustment plate (530) is provided with an adjustment screw hole (540). An adjustment screw (550) is provided in the adjustment screw hole (540). The end of the adjustment screw (550) is used to rotate to abut against the first clamping plate (410) so that the clamping groove (440) at the first clamping plate (410) and the clamping groove (440) at the second clamping plate (420) abut together.

4. The quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 3, characterized in that: The end of the adjusting screw (550) away from the first clamping plate (410) is provided with an internal hexagon blind hole (551).

5. The quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 3, characterized in that: A fixing mechanism for fixing the adjusting screw (550) is provided between the first clamping plate (410) and the adjusting screw (550). The fixing mechanism includes a plurality of slots (610), which are located at the adjusting screw (550) and are evenly distributed circumferentially around the central axis of the adjusting screw (550). A fixing ring mounting groove (710) is provided at the opposite end face of the first clamping plate (410) and the adjusting screw (550) for fixing. A fixed ring (720) is slidably provided in the ring mounting groove (710). The fixed ring (720) is provided with a locking tooth (730) that cooperates with the locking groove (610). The fixed ring mounting groove (710) is provided with a half-tooth bolt (740) for limiting the fixed ring (720). A spring (750) is sleeved on the half-tooth bolt (740). The spring (750) is used to push the locking tooth (730) at the fixed ring (720) into the locking groove (610) to fix the adjusting screw (550).

6. The quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 5, characterized in that: The first clamping plate (410) is provided with a reset groove (760) that communicates with the fixing ring mounting groove (710). The side wall of the fixing ring (720) extends into the reset groove (760) to form a reset ear (770). The locking adjustment plate (530) is provided with an adjustment plate through hole (560) corresponding to the reset ear (770).

7. The quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 1, characterized in that: Both the first clamping plate (410) and the second clamping plate (420) are bolted to the clamping piece (430) at their respective ends.

8. A quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 2, characterized in that: The drive mechanism includes a set of linear slide rails (310) arranged along the length of the machine tool body (100). The drive mechanism also includes a slide table mounting base (320), a slide table (330) that cooperates with the linear slide rails (310) is provided at the slide table mounting base (320), a lead screw (340) is rotatably provided at the machine tool body (100), a lead screw nut seat (350) that cooperates with the lead screw (340) is provided at the slide table mounting base (320), a connecting piece (360) is provided between the lead screw nut seat (350) and the motor mounting base (220), and the two ends of the connecting piece (360) are bolted to the lead screw nut seat (350) and the motor mounting base (220) respectively. A lead screw drive motor (110) is provided on the outer side wall of the machine tool body (100) to drive the lead screw (340) to rotate and drive the lead screw nut seat (350) to move.

9. A quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 8, characterized in that: The machine tool body (100) is provided with an optical axis (370), and the connector (360) is provided with an optical axis through hole (361) through which the optical axis (370) passes and is clearance-fitted with the optical axis (370).

10. A quick clamping and positioning device for machining irregularly shaped permanent magnets according to claim 1, characterized in that: The machining mechanism includes a mounting plate (380) disposed in the machine tool body (100). The bottom end of the mounting plate (380) is located above the motor mounting base (220). At least three machining motors (810) are provided at the mounting plate (380). The shafts of the at least three machining motors (810) are respectively connected to grinding heads (820), drilling heads (830) and polishing heads (840). A lead screw module (850) for driving the machining motors (810) to move vertically is provided at the mounting plate (380). A tool drive motor (120) that cooperates with the lead screw module (850) is provided at the machine tool body (100).

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