A quick-change magnet platform for laser welding

Abstract

The present invention relates to the technical field of magnet platforms, specifically to a quick-change magnet platform for laser welding, comprising a base, a support frame, a transmission group, a material rail and a magnetic frame, wherein the material rail is installed on the support frame, and two adjacent material rails form a group, and the magnetic frame comprises a connecting frame and a magnetic plate, each of the connecting frames is slidably connected to a group of material rails, the magnetic plate is connected to the upper side of the connecting frame, and the magnetic plate extends to the left or right side of the connecting frame, the spacing between the multiple magnetic plates on the same connecting frame is consistent, and the spacing between the magnetic plates is not less than the width of the magnetic plate, and the magnetic plate extending to the left side of the connecting frame and the magnetic plate extending to the right side of the connecting frame are staggered with each other in the front and rear directions; the present invention realizes full utilization of each unit module of the magnet platform by unitizing the magnet platform and adjusting the area and pole pitch of the magnet platform through assembly of unit modules, so as to avoid repair caused by slightly damaged magnetic poles, and reduce the number of magnetic poles that do not participate in adsorption, thereby reducing equipment energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of magnet platforms, in particular to a quick-change magnet platform for laser welding. Background Art

[0002] Laser welding has the advantages of low energy consumption and less pollution. In recent years, related technologies have developed rapidly. For example, laser-welded plates are widely used in the automotive manufacturing industry. They connect plates of different thicknesses and materials into one by laser welding. This not only reduces the manufacturing and logistics costs of the car, but also takes into account the structural strength and energy consumption of the car.

[0003] The realization of laser welding technology requires not only a laser transmitter but also a positioning platform. The positioning platform must not only position the welding plate, but also enable the welding plate to reciprocate between the welding operation area and the unloading operation area. Traditional positioning platforms are mechanically clamped, but because their clamping process is cumbersome and will cause damage to the workpiece surface, it is not conducive to the rapid change of workpieces and is gradually being eliminated by the industry. Existing positioning platforms are mostly magnetic adsorption type, with multiple rows and columns of electromagnetic poles arranged in a matrix on the adsorption surface of the platform. By controlling the magnetic presence or absence of each electromagnetic pole, the positioning and change of various types of workpieces on the adsorption surface are completed.

[0004] The magnet platform in the prior art uses magnetic control. Although it can achieve rapid change of plate shape without damaging the plate, this change will also lead to different usage frequencies of the magnetic poles on the magnet platform, and thus different lifespans of the magnetic poles, thereby inducing frequent damage to the magnet platform. The reasons are as follows: when positioning thin plates (thin plates have low rigidity themselves and are easily affected by external forces or thermal stresses to cause warping during processing), it is necessary to reduce the spacing between the magnetic poles on the magnet platform (i.e., the pole pitch) so that the plate is continuously and evenly adsorbed on the adsorption surface of the positioning platform, thereby completing the rigidity compensation of the thin plate; when producing thick plates, no rigidity compensation is required. If the pole pitch is reduced at this time, unnecessary energy consumption of the magnetic poles will be increased; therefore, the prior art will control each magnetic pole through an electronic control system. The presence or absence of pole magnetism can be used to adjust the pole pitch, but the above setting will cause the usage frequency of each pole on the magnet platform to be different, and accordingly, the effective life of the poles will also be different. Therefore, the poles will be damaged one after another, resulting in frequent repairs of the entire magnet platform. The existing magnet platform is manufactured in an integrated manner, and all the poles are uniformly packaged. Therefore, it takes a lot of time to repair the damaged poles, which affects the production efficiency of the welding production line. In addition, laser welded blanks are used in automobile manufacturing, and their area is uncertain. In order to improve the compatibility of the magnet platform, the magnet platform is usually set to a large area. However, during the feeding and discharging process, the magnet platform needs to move back and forth. At this time, a large-area magnet platform is used to adsorb small-area laser welded blanks, and the part of the magnet platform that does not participate in the adsorption will generate additional energy consumption.

[0005] In order to avoid the phenomenon that the effective life of the magnetic poles on the magnet platform is different and the magnetic poles that do not participate in adsorption will increase the energy consumption of the equipment, a quick-change magnet platform for laser welding is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a quick-change magnet platform for laser welding, which solves the problem that the effective life of the magnetic poles on the magnet platform is different and the magnetic poles that do not participate in the adsorption effect will increase the energy consumption of the equipment. By unitizing the magnet platform and adjusting the area and pole pitch of the magnet platform through the assembly of unit modules, full utilization of each unit module of the magnet platform is achieved, so as to avoid repairs caused by slightly damaged magnetic poles, reduce the number of magnetic poles that do not participate in adsorption, and thus reduce the energy consumption of the equipment.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A quick-change magnet platform for laser welding comprises a base, a support frame, a transmission group, a material rail and a magnetic frame, wherein the number of the material rail and the magnetic frame are both multiple, the material rail is mounted on the support frame, and two adjacent material rails form a group, the magnetic frame comprises a connecting frame and multiple magnetic plates, each of the connecting frames is slidably connected to a group of material rails, the magnetic plates are connected to the upper side of the connecting frame, and the magnetic plates extend to the left or right side of the connecting frame, the spacing between the multiple magnetic plates on the same connecting frame is consistent, and the spacing between the magnetic plates is greater than or equal to the width of the magnetic plates, and the magnetic plates extending to the left side of the connecting frame and the magnetic plates extending to the right side of the connecting frame are staggered with each other in the front-to-back direction;

[0009] The plurality of magnetic frames extending to the same side of the connecting frame by the magnetic plate are combined to form a large pole pitch magnet platform, and the plurality of magnetic frames extending to the opposite side of the connecting frame by the magnetic plate are combined to form a small pole pitch magnet platform, and the area and shape of the magnet platform change with the change of the combination number and combination mode of the magnetic frames.

[0010] Preferably, the connecting frame includes a slide and a connecting plate, the slide is slidably connected to the material rail, the connecting plate is detachably mounted on the slide, and the plurality of magnetic plates are fixedly connected to the connecting plate;

[0011] In the above scheme, multiple magnetic plates are fixedly connected to the connecting plate. By disassembling the connecting plate on the slide, the magnetic plates can be quickly replaced to remove the damaged magnetic plates, or a magnet platform of a new shape and new area can be quickly assembled to adsorb the new laser welded plate.

[0012] Preferably, the connecting plate includes a longitudinal plate and a transverse plate, the longitudinal plate is mounted on the slide, the plurality of magnetic plates are mounted above the longitudinal plate, the longitudinal plate is located within the length range of the magnetic plate in the left-right direction, and the length of the longitudinal plate in the left-right direction is less than or equal to half the length of the magnetic plate, and the transverse plate is connected to the front end or the rear end of the longitudinal plate;

[0013] In the above scheme, by limiting the installation position and size of the longitudinal plate, multiple magnetic frames extending to the same side of the connecting frame or multiple magnetic frames extending to opposite sides of the connecting frame can be normally combined to form a large pole pitch magnet platform or a small pole pitch magnet platform without interference.

[0014] Preferably, the length of the horizontal plate in the front-to-back direction is less than or equal to the length of the magnetic plate, and the length of the horizontal plate in the left-to-right direction is equal to the length of the magnetic plate. A locking magnetic pole is provided at the left or right end of the horizontal plate, and the locking magnetic pole is an electromagnet. The other end of the horizontal plate is made of ferromagnetic material.

[0015] In the above solution, by limiting the size of the transverse plate and arranging the locking poles, the two magnetic frames extending to the same side of the connecting frame can be combined to attract the ends of the transverse plate with the help of the magnetism of the locking poles to form mutual locking.

[0016] Preferably, when the magnetic plate extends to the right side of the longitudinal plate, the locking magnetic pole is located at the right end of the transverse plate, the longitudinal plate is provided with a locking block, the locking block is located at the opposite end of the transverse plate, the length of the locking block in the front-to-back direction is less than the length of the transverse plate, and the locking block is made of ferromagnetic material, and a clearance groove is provided on the transverse plate, the clearance groove is located at the opposite end of the locking magnetic pole;

[0017] In the above scheme, the installation position and size of the locking block are limited and matched with the clearance groove, so that the two magnetic frames extending to the opposite sides of the connecting frame are combined, so that the locking block is adsorbed by the magnetism of the locking pole, thereby forming mutual locking while avoiding interference between the two magnetic frames extending to the same side of the connecting frame.

[0018] Preferably, a first threaded hole is formed on the front side of the slide and passes through the surface of the material rail, and a locking screw is engaged in the interior of the first threaded hole;

[0019] In the above scheme, the slide is fixed on the material rail by tightening the locking screw, thereby realizing the positioning of the magnetic plate on the slide. In a group of material rails, the magnetic plate positioned by this method is used as the substrate, and other magnetic plates on the same group of slide rails produce various combinations with the substrate to form magnet platforms with different pole pitches, shapes and areas, and the locking positioning is completed by locking the magnetic poles.

[0020] Preferably, the lower surface of the longitudinal plate is provided with an alignment pin, and the two alignment pins are both located between the magnetic plates, and the number of magnetic plates on the far sides of the two alignment pins is the same, the alignment pins are set as permanent magnets, and the upper surface of the slide is provided with alignment grooves matching the alignment pins, the alignment grooves are grouped in pairs, and the spacing of each group of alignment grooves is consistent with the spacing of the alignment pins, and the group spacing of the alignment grooves is equal to half the spacing of the magnetic plates;

[0021] In the above scheme, through the setting of the alignment groove and the alignment pin, the connecting body composed of the "magnetic plate-longitudinal plate-horizontal plate" has two installation methods on the slide, thereby forming a magnetic frame with the magnetic plate extending to different sides of the connecting frame, so as to realize the combination of small pole pitch magnet platforms, and at the same time, standardize the "magnetic plate-longitudinal plate-horizontal plate" connecting body and the slide respectively, without the need to separately manufacture magnetic frames of various specifications, thereby saving production costs.

[0022] Preferably, a second threaded hole is formed on the alignment pin, a jacking bolt is engaged inside the second threaded hole, and the jacking bolt has a full-thread screw;

[0023] In the above scheme, the lifting bolt plays a role similar to a "jack". When disassembling the "magnetic plate-longitudinal plate-horizontal plate" connector, the longitudinal plate is pushed up through the threaded cooperation between the lifting bolt and the second threaded hole, thereby weakening the adsorption effect of the alignment pin on the alignment groove, thereby facilitating disassembly.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention provides multiple groups of material rails and multiple groups of magnetic frames on the material rails, and the magnetic frames have two specifications, and then the small pole pitch and large pole pitch magnet platforms are respectively formed by the cross combination and unidirectional arrangement of the two magnetic frames to adsorb laser welded plates with different thicknesses. By combining the unitized magnetic frames, the loss degree of the electromagnetic poles on each magnetic frame can be made similar, thereby avoiding the frequent repair phenomenon caused by the damage of a few magnetic poles. In addition, a detachable magnetic plate is provided on the magnetic frame, and the magnetic plate that does not produce the adsorption effect can be removed, thereby reducing the energy consumption of the reciprocating process of the magnet platform and completing the rapid replacement of the damaged magnetic frame.

[0026] 2. The present invention divides the magnetic frame into a "magnetic plate-longitudinal plate-horizontal plate" connector and a slide, and through the setting of the alignment groove on the slide and the alignment pin on the longitudinal plate, the "magnetic plate-longitudinal plate-horizontal plate" connector has two installation methods on the slide, so that the magnetic plate on the slide extends to the left and right sides respectively, thereby forming two specifications of magnetic frames, and the "magnetic plate-longitudinal plate-horizontal plate" connector and the slide are produced as standard parts respectively, thereby reducing the number of parts of different specifications, thereby reducing production costs, and providing convenience for the assembly process.

[0027] 3. The present invention provides locking screws on the slide to fix the slide on the material rail, thereby forming the positioning of the magnetic plate, and the magnetic plate fixed in the above manner is used as a base plate, and then other magnetic plates are combined with the above magnetic plates to form a magnet platform with different pole pitches, shapes, and areas to adsorb laser-welded plates with different thicknesses, shapes, and areas, and through the setting of the locking poles on the horizontal plate, the combined magnetic plates are locked to each other to form a stable magnet platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall isometric structure of the present invention;

[0029] Figure 2 For the present invention Figure 1 A magnified schematic diagram of part A;

[0030] Figure 3 This is a schematic diagram of the top structure of the magnet platform of the present invention;

[0031] Figure 4 This is a schematic diagram of bolt installation according to the present invention;

[0032] Figure 5 This is a schematic diagram of the magnetic frame structure in which the magnetic plate extends to the right side of the slide frame according to the present invention;

[0033] Figure 6 This is a schematic diagram of the magnetic frame structure in which the magnetic plate extends to the left side of the slide frame according to the present invention;

[0034] Figure 7 It is a schematic diagram of the magnetic frame assembly state of the present invention;

[0035] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part B.

[0036] In the figure: 1. base; 2. support frame; 3. transmission group; 4. material rail; 5. magnetic frame; 51. connecting frame; 511. slide; 5111. first threaded hole; 5112. locking screw; 5113. alignment groove; 512. connecting plate; 5121. longitudinal plate; 51211. locking block; 51212. alignment pin; 51213. second threaded hole; 51214. lifting bolt; 5122. transverse plate; 51221. locking pole; 51222. clearance groove; 52. magnetic plate. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1 to 8 The present invention provides a quick-change magnet platform for laser welding, and the technical solution is as follows:

[0039] A quick-change magnet platform for laser welding includes a base 1, a support frame 2, a transmission group 3, a material rail 4 and a magnetic frame 5. The support frame 2 is slidably connected to the base 1. A common sliding method is to set a slide rail on the base 1 and set a slider matching the slide rail on the support frame 2. The purpose of the support frame 2 sliding on the base 1 is to drive the laser welded blank to reciprocate in different working areas. Specifically, at the beginning, the support frame 2 is at the front end to facilitate the operator to place and fix the laser welded blank on the support frame 2. Then, the support frame 2 moves back into the welding area. The welding operation is completed under the action of the launching assembly, and then the support frame 2 returns to the front end again to complete the unloading and reload for a new round of welding; the transmission group 3 usually includes a motor, a pulley and a conveyor belt. The motor serves as the power source for the reciprocating motion of the support frame 2. One of the two pulleys is fixedly connected to the motor main shaft (using an interference connection or a key connection), and the other pulley is rotatably connected to the base 1. The conveyor belt is wound around the two pulleys, and the support frame 2 is fixedly connected to the conveyor belt (a splint dedicated to clamping the conveyor belt is usually installed on the support frame 2), and then the motor rotates in both directions to drive the conveyor belt. The feeding belt rotates forward or reversely, thereby realizing the reciprocating movement of the support frame 2. The number of the material rails 4 and the magnetic frame 5 is multiple. The accompanying drawings are for simple schematic diagrams, drawing two groups (i.e., four) of material rails 4 and five magnetic frames 5 to show the various combinations of the magnetic frames 5. The material rails 4 are installed on the support frame 2, and two adjacent material rails 4 are a group. The magnetic frame 5 includes a connecting frame 51 and a plurality of magnetic plates 52. Each connecting frame 51 is slidably connected to a group of material rails 4. The magnetic plate 52 is connected to the upper side of the connecting frame 51, and the magnetic plate 52 extends to the left or right side of the connecting frame 51. The same connecting frame The spacing between the multiple magnetic plates 52 on 51 is consistent, and the spacing between the magnetic plates 52 is greater than or equal to the width of the magnetic plates 52. In this method, the pole pitch on each magnetic plate 52 is half of the spacing between the magnetic plates 52, that is, d / 2. In addition, the width of the magnetic plate 52 should be appropriately reduced so that after the two magnetic frames 5 extending to the opposite sides of the connecting frame 51 are combined, there is still a gap between the intersecting magnetic plates 52 to improve the heat dissipation capacity under electromagnetic action. The magnetic plate 52 extending to the left side of the connecting frame 51 and the magnetic plate 52 extending to the right side of the connecting frame 51 are staggered in the front-to-back direction.

[0040] The magnetic plate 52 and the multiple magnetic frames 5 extending to the same side of the connecting frame 51 are combined to form a large pole pitch magnet platform, and the magnetic plate 52 and the multiple magnetic frames 5 extending to the opposite side of the connecting frame 51 are combined to form a small pole pitch magnet platform, and the area and shape of the magnet platform change with the change of the combination number and combination method of the magnetic frames 5.

[0041] As an embodiment of the present invention, refer to Figure 1 and Figure 2The connecting frame 51 includes a slide 511 and a connecting plate 512. The slide 511 is slidably connected to the material rail 4, and the connecting plate 512 is detachably mounted on the slide 511. Multiple magnetic plates 52 are fixedly connected to the connecting plate 512. When installing the magnetic frame 5, the installation direction of the slide 511 on the material rail 4 is unified. Before welding a batch of laser-welded blanks, the number of magnetic frames 5 to be used must be determined based on the specific shape and area of ​​the laser-welded blanks, so as to use as few magnetic frames 5 as possible to combine the magnet platform used to position the laser-welded blanks, so as to reduce the dead weight of the support frame 2 during the reciprocating process, thereby reducing the energy consumption of the motor of the transmission group 3. In addition, if you want to further reduce energy consumption, the slide 511 without the magnetic plate 52 installed can also be removed from the material rail 4.

[0042] As an embodiment of the present invention, refer to Figure 3 and Figure 4 The connecting plate 512 includes a longitudinal plate 5121 and a transverse plate 5122. The longitudinal plate 5121 is installed on the slide 511, and multiple magnetic plates 52 are installed above the longitudinal plate 5121. The longitudinal plate 5121 is located within the length range of the magnetic plate 52 in the left and right directions, and the length of the longitudinal plate 5121 in the left and right directions is less than or equal to half of the length of the magnetic plate 52. The transverse plate 5122 is connected to the front end or rear end of the longitudinal plate 5121; during the manufacturing process of the connecting plate 512, the length of the longitudinal plate 5121 can be made as close to half of the length of the magnetic plate 52 as possible to stabilize its connection with the multiple magnetic plates 52.

[0043] As an embodiment of the present invention, refer to Figure 3 、 Figure 4 、 Figure 7 and Figure 8 , the length of the horizontal plate 5122 in the front-to-back direction is less than or equal to the length of the magnetic plate 52, and the length of the horizontal plate 5122 in the left-to-right direction is equal to the length of the magnetic plate 52, Figure 3 In the figure, the length of the horizontal plate 5122 is c, and the length of the magnetic plate 52 is also c. A locking pole 51221 is provided at the left or right end of the horizontal plate 5122. The locking pole 51221 is an electromagnet, and the other end of the horizontal plate 5122 is made of ferromagnetic material. The locking pole 51221 is axially magnetized in the left and right directions, thereby avoiding the interference of its own magnetism with the positioning magnetic field of the laser welded blank while adsorbing the ferromagnetic material end of the horizontal plate 5122. After the two magnetic frames 5 with both magnetic plates 52 extending to the right are combined, the length of the magnetic plate 52 is extended, while the pole pitch remains unchanged. At this time, when the locking pole 51221 is energized, the locking pole 51221 on one magnetic frame 5 will adsorb the ferromagnetic material end of the horizontal plate 5122 of the other magnetic frame 5 (refer to Figure 8 ), so that the two magnetic frames 5 are in close contact.

[0044] As an embodiment of the present invention, referring to FIG. Figure 3 、 Figure 4 、 Figure 7 and Figure 8 When the locking magnetic pole 51221 is energized, the locking magnetic pole 51221 on one magnetic frame 5 will attract the locking block 51211 on the longitudinal plate 5121 of the other magnetic frame 5 (refer to FIG5 ). Figure 8 ), so that the two magnetic frames 5 are tightly attached, and when the two magnetic frames 5 completed in the above combination are combined with other magnetic frames 5, the giving way grooves 51222 of the horizontal plates 5122 on the other magnetic frames 5 will give way to the locking blocks 51211, thereby avoiding interference.

[0045] As an embodiment of the present invention, refer to Figures 4 to 8 The front side of the slide 511 is provided with a first threaded hole 5111 which penetrates the surface of the material rail 4, and a locking screw 5112 is engaged inside the first threaded hole 5111; in this method, the leftmost magnetic plate 52 on each set of material rails 4 is used as a base plate, and is combined with other magnetic plates 52 to form a magnet platform with different shapes, areas and pole pitches (refer to Figure 7 ); The base plate needs to be fixed on the material rail 4 first, and this process is achieved by tightening the locking screw 5112; in addition, when assembling the magnet platform, for the slide 511 that is not installed with the "magnetic plate 52-vertical plate 5121-horizontal plate 5122" connector, it is necessary to tighten the locking screw 5112 to prevent the slide 511 from sliding freely during the reciprocating process of the support frame 2.

[0046] As an embodiment of the present invention, refer to Figure 5 and Figure 6 , the lower surface of the longitudinal plate 5121 is provided with an alignment pin 51212, and the two alignment pins 51212 are both located between the magnetic plates 52, and the number of magnetic plates 52 on the far side of the two alignment pins 51212 is the same, the alignment pin 51212 is set to a permanent magnet, and the alignment pin 51212 is annularly magnetized to avoid the influence of its own magnetism on the positioning of the laser welded blank, and the upper surface of the slide 511 is provided with an alignment groove 5113 matching the alignment pin 51212, the alignment grooves 5113 are grouped in pairs, and the spacing of each group of alignment grooves 5113 is consistent with the spacing of the alignment pins 51212, and the group spacing of the alignment grooves 5113 is equal to half of the spacing of the magnetic plates 52, refer to Figure 5 In this method, the spacing between the magnetic plates 52 is d, and the spacing between the groups of the alignment grooves 5113 is d / 2; Figure 5 , so that the extended end of the magnetic plate 52 faces right, and the positioning pins are inserted into a set of positioning grooves on the front side, thereby forming a magnetic frame 5 with the magnetic plate 52 extending to the right; Figure 6 , so that the extended end of the magnetic plate 52 faces left, and the positioning pins are inserted into a group of positioning slots on the rear side, thereby forming a magnetic frame 5 with the magnetic plate 52 extending to the left.

[0047] As an embodiment of the present invention, refer to Figure 5 and Figure 6 A second threaded hole 51213 is provided on the alignment pin 51212, and a lifting bolt 51214 is engaged inside the second threaded hole 51213, and the lifting bolt 51214 has a full-thread screw; when disassembling the "magnetic plate 52-longitudinal plate 5121-horizontal plate 5122" connector, tighten the lifting bolt 51214 to continuously lift the "magnetic plate 52-longitudinal plate 5121-horizontal plate 5122" connector, thereby completing the disassembly.

[0048] Working Principle: The present invention unitizes the integrated magnet platform in the prior art and sets the unitized magnetic frame 5 to two specifications. The two specifications of the magnetic frames 5 are combined on the material rail 4 in a manner of cross-direction or same-direction arrangement to form magnet platforms with small pole pitch and large pole pitch, respectively. The magnetic frame 5 can be locked at any position of the material rail 4, and then other magnetic frames 5 on the same material rail 4 can be combined with the fixed magnetic frame 5 to form magnet platforms of various shapes. In addition, according to the area of ​​the laser-welded blank, the number of magnetic plates 52 can be adaptively adjusted to adjust the specific area of ​​the magnet platform during the operation cycle of this type of laser-welded blank, while reducing the energy consumption of the magnet platform during the reciprocating process.

[0049] Specifically, in order to allow the two specifications of magnetic racks 5 to be crossed in different directions or arranged in the same direction to form magnet platforms with small pole pitch and large pole pitch, multiple magnetic plates 52 are arrayed on the longitudinal plate 5121 at equal intervals, and the spacing between the magnetic plates 52 is not less than the width of the magnetic plates 52. Therefore, when magnetic racks 5 of the same specifications are combined, the length of the magnetic plates 52 is extended while the pole pitch remains unchanged. When magnetic racks 5 of different specifications are combined, the magnetic plates 52 on the two magnetic racks 5 are inserted into the gaps between the magnetic plates 52 of each other to complete the crossing, thereby reducing the pole pitch.

[0050] In order to achieve standardization of the "magnetic plate 52 - longitudinal plate 5121 - transverse plate 5122" connector and the slide 511, thereby reducing the number of parts of different specifications, thereby reducing production costs, facilitating the assembly process, and accelerating model changeover; an alignment pin 51212 made of a permanent magnet material is provided on the longitudinal plate 5121, and two sets of alignment grooves 5113 matching the alignment pins 51212 are provided on the slide 511, thereby enabling the connector consisting of the "magnetic plate 52 - longitudinal plate 5121 - transverse plate 5122" to be installed on the slide 511 in two ways, thereby obtaining two different specifications of the magnetic frame 5 through the two installation methods;

[0051] In order to lock the magnetic frame 5 at any position of the material rail 4, a first threaded hole 5111 is opened on the slide 511, and a locking screw 5112 is set in the first threaded hole 5111. By tightening the locking screw 5112, the slide 511 is fixed on the material rail 4, and the magnetic plate 52 on the slide 511 is positioned.

[0052] In order to lock multiple magnetic frames 5 with each other after combination to ensure the stability of the magnet platform, a locking pole 51221 is set at the right end of the horizontal plate 5122, a clearance groove 51222 is opened at the left end of the horizontal plate 5122, and a locking block 51211 is set on the vertical plate 5121. The left end of the horizontal plate 5122 and the locking block 51211 are both made of ferromagnetic material. When magnetic frames 5 of different specifications are combined, the locking pole 51221 absorbs the locking block 51211. When magnetic frames 5 of the same specification are combined, the locking pole 51221 absorbs the left end of the horizontal plate 5122, so that the magnetic frames 5 can be effectively locked after being crossed in different directions or arranged in the same direction.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change magnet platform for laser welding, comprising a base (1), a support frame (2) and a transmission group (3), characterized in that: It also includes a material rail (4) and a magnetic frame (5), the number of the material rail (4) and the magnetic frame (5) are both multiple, the material rail (4) is installed on the support frame (2), and two adjacent material rails (4) form a group, the magnetic frame (5) includes a connecting frame (51) and a plurality of magnetic plates (52), each of the connecting frames (51) is slidably connected to a group of material rails (4), the magnetic plates (52) are connected to the upper side of the connecting frame (51), and the magnetic plates (52) extend to the left or right side of the connecting frame (51), the spacing between the multiple magnetic plates (52) on the same connecting frame (51) is consistent, and the spacing between the magnetic plates (52) is greater than or equal to the width of the magnetic plates (52), and the magnetic plates (52) extending to the left side of the connecting frame (51) and the magnetic plates (52) extending to the right side of the connecting frame (51) are staggered with each other in the front-to-back direction; The plurality of magnetic frames (5) extending from the magnetic plate (52) to the same side of the connecting frame (51) are combined to form a large-pole-pitch magnet platform, and the plurality of magnetic frames (5) extending from the magnetic plate (52) to the opposite side of the connecting frame (51) are combined to form a small-pole-pitch magnet platform, and the area and shape of the magnet platform change with the change of the combination number and combination mode of the magnetic frames (5).

2. The quick-change magnet platform for laser welding according to claim 1, characterized in that: The connecting frame (51) comprises a slide (511) and a connecting plate (512), the slide (511) is slidably connected to the material rail (4), the connecting plate (512) is detachably mounted on the slide (511), and a plurality of magnetic plates (52) are fixedly connected to the connecting plate (512).

3. The quick-change magnet platform for laser welding according to claim 2, characterized in that: The connecting plate (512) includes a longitudinal plate (5121) and a transverse plate (5122), wherein the longitudinal plate (5121) is mounted on the slide (511), and the plurality of magnetic plates (52) are mounted above the longitudinal plate (5121), wherein the longitudinal plate (5121) is located within the length range of the magnetic plate (52) in the left-right direction, and the length of the longitudinal plate (5121) in the left-right direction is less than or equal to half the length of the magnetic plate (52), and the transverse plate (5122) is connected to the front end or the rear end of the longitudinal plate (5121).

4. The quick-change magnet platform for laser welding according to claim 3, characterized in that: The length of the transverse plate (5122) in the front-to-back direction is less than or equal to the length of the magnetic plate (52), and the length of the transverse plate (5122) in the left-to-right direction is equal to the length of the magnetic plate (52). A locking magnetic pole (51221) is provided at the left or right end of the transverse plate (5122), and the locking magnetic pole (51221) is an electromagnet. The other end of the transverse plate (5122) is made of ferromagnetic material.

5. The quick-change magnet platform for laser welding according to claim 4, characterized in that: When the magnetic plate (52) extends to the right side of the longitudinal plate (5121), the locking magnetic pole (51221) is located at the right end of the transverse plate (5122); a locking block (51211) is provided on the longitudinal plate (5121); the locking block (51211) is located at the opposite end of the transverse plate (5122); the length of the locking block (51211) in the front-to-back direction is less than the length of the transverse plate (5122); the locking block (51211) is made of ferromagnetic material; a clearance groove (51222) is provided on the transverse plate (5122); the clearance groove (51222) is located at the opposite end of the locking magnetic pole (51221).

6. The quick-change magnet platform for laser welding according to claim 2, characterized in that: A first threaded hole (5111) penetrating to the surface of the material rail (4) is provided on the front side of the slide (511), and a locking screw (5112) is engaged inside the first threaded hole (5111).

7. The quick-change magnet platform for laser welding according to claim 3, characterized in that: The lower surface of the longitudinal plate (5121) is provided with an alignment pin (51212), and the two alignment pins (51212) are both located between the magnetic plates (52), and the number of magnetic plates (52) on the far side of the two alignment pins (51212) is the same, and the alignment pins (51212) are configured as permanent magnets. The upper surface of the slide (511) is provided with an alignment groove (5113) that matches the alignment pins (51212), and the alignment grooves (5113) are arranged in groups of two, and the spacing between each group of alignment grooves (5113) is consistent with the spacing between the alignment pins (51212), and the group spacing of the alignment grooves (5113) is equal to half the spacing between the magnetic plates (52).

8. The quick-change magnet platform for laser welding according to claim 7, characterized in that: A second threaded hole (51213) is provided on the alignment pin (51212), a jacking bolt (51214) is engaged inside the second threaded hole (51213), and the jacking bolt (51214) has a fully threaded screw.

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