Electromagnetic clamping mechanism of machine tool

Abstract

The invention discloses a machine tool electromagnetic clamping mechanism, and relates to the technical field of machine tool machining, the machine tool electromagnetic clamping mechanism comprises a base, a classification mechanism and a conveying mechanism, the base is provided with an electromagnetic frame and a mounting rack, the mounting rack is provided with a detection mechanism capable of carrying out air tightness detection on a placement surface of a workpiece, and an electromagnetic suction block is arranged in the electromagnetic frame; the electromagnetic suction block can fix the detected workpiece; the classifying mechanism is arranged on the mounting frame and is used for classifying the workpieces subjected to air tightness detection, so that the workpieces which can be tightly sucked by the electromagnetic suction block can be displayed more visually; the conveying mechanism is arranged on the mounting frame and used for conveying the workpieces to the detecting mechanism and the classifying mechanism. According to the electromagnetic clamping mechanism of the machine tool, air tightness detection can be conducted on the placing faces on the two sides of the workpiece at the same time, the detection range is larger, the workpiece does not need to be overturned when the placing faces on the two sides of the workpiece are detected, and the situation that the workpiece is scratched due to overturning of the workpiece is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool processing, and in particular to an electromagnetic clamping mechanism for a machine tool. Background Art

[0002] A magnetic chuck is a chuck that absorbs ferromagnetic objects through magnetic force. Electromagnetic chucks are widely used in the processing and fixing of workpieces. When processing a workpiece, the workpiece needs to be placed on the electromagnetic chuck. The electromagnetic chuck is powered on to generate magnetic force to fix the workpiece, thereby facilitating the processing of workpiece cleaning and cutting.

[0003] The existing Chinese patent with the publication number of "CN221495189U" and the name of "An electromagnetic chuck and processing equipment" introduces an electromagnetic chuck, including an electromagnetic chuck body, the electromagnetic chuck body has a support surface for supporting a workpiece, and an air passage is provided on the electromagnetic chuck body, the air passage extends to the support surface, and an airtight test port can be formed on the support surface. If there are impurities between the workpiece and the support surface, it will affect the sealing of the airtight test port, and it can be concluded that the support surface needs to be cleaned or the bottom surface of the workpiece is uneven, thereby avoiding the occurrence of inaccurate processing accuracy due to uneven workpiece as soon as possible.

[0004] The above-mentioned prior art has the following technical defects: the airtight test port on the support surface can only test one placement surface of the workpiece, and a general workpiece has two placement surfaces. If the above-mentioned prior art discards the workpiece when it is found that the airtightness of one placement surface of the workpiece does not meet the requirements, it will cause waste of the workpiece. If the workpiece is turned over, the operation of turning over the workpiece is not only troublesome, but also the placement surface of the workpiece may be scratched when the workpiece is turned over. Summary of the invention

[0005] The invention provides an electromagnetic clamping mechanism for a machine tool, which can simultaneously detect the air tightness of two placement surfaces of a workpiece, thereby avoiding the situation where the workpiece is scratched due to turning over the workpiece and reducing the waste of the workpiece.

[0006] A machine tool electromagnetic clamping mechanism of the present invention adopts the following technical solution: An electromagnetic clamping mechanism for a machine tool comprises a base, a classification mechanism and a conveying mechanism, wherein an electromagnetic frame and a mounting frame are arranged on the base, and two groups of detection mechanisms are arranged on the mounting frame, the two groups of detection mechanisms respectively correspond to the two side placement surfaces of a workpiece, and can simultaneously perform airtightness detection on the corresponding workpiece placement surfaces, an electromagnetic suction block is arranged in the electromagnetic frame, and the electromagnetic suction block can fix the workpiece that meets the airtightness requirements; the classification mechanism is arranged on the mounting frame, and the classification mechanism is used to classify the workpiece that meets the airtightness requirements; the conveying mechanism is arranged on the mounting frame, and the conveying mechanism is used to convey the workpiece to the detection mechanism and the classification mechanism.

[0007] Furthermore, two groups of the detection mechanisms are respectively arranged on both sides of the mounting frame and are symmetrically arranged with respect to the mounting frame; The detection mechanism includes a fixed frame, which is arranged on one side of the mounting frame, and a detection cylinder and a clamping cylinder are installed on the fixed frame, the detection cylinder is located on a side of the clamping cylinder away from the mounting frame, and a pressure gauge is arranged on the detection cylinder, the output shaft of the detection cylinder is connected to a movable frame, and the end of the movable frame away from the detection cylinder extends into the mounting frame and is connected to a first mounting plate, the output shaft of the clamping cylinder passes through the first mounting plate and extends into the mounting frame, and the output shaft of the clamping cylinder is connected to a second mounting plate, a piston rod is arranged on the side of the first mounting plate facing the second mounting plate, a piston cylinder matched with the piston rod is arranged on the side of the second mounting plate facing the first mounting plate, an end of the piston cylinder away from the first mounting plate passes through a side of the second mounting plate away from the first mounting plate, and the workpiece is located between two second mounting plates corresponding to two groups of the detection mechanisms, and the two placement surfaces of the workpiece are respectively pressed against the second mounting plates on both sides thereof.

[0008] Furthermore, the conveying mechanism comprises a conveying roller for carrying the workpiece to be inspected, and the conveying roller is rotated by a driving assembly arranged on the mounting frame.

[0009] Furthermore, the driving assembly includes a conveying wheel, which is mounted at one end of the conveying roller. A driving motor is provided on the mounting frame. A driving wheel corresponding to the conveying wheel is provided on the output shaft of the driving motor. The conveying wheel and the driving wheel are sleeved with the same driving belt. The driving motor can drive the conveying wheel to rotate through the driving belt, and further can drive the conveying roller to rotate.

[0010] Furthermore, the classification mechanism includes a carrying plate and a partition plate, the carrying plate is arranged on the mounting frame and can receive the workpiece conveyed by the conveying roller, and the partition plate is arranged on the carrying plate, and the partition plate divides the mounting frame into a middle area, a left flat area and a right flat area.

[0011] Furthermore, a grid frame is arranged in the electromagnetic frame, the grids of the grid frame are arranged as electromagnetic mounting holes, and the electromagnetic suction blocks are arranged in the electromagnetic mounting holes.

[0012] Furthermore, an airtight compensation groove is provided in the grid frame, and the airtight compensation groove includes a grid groove and a straight groove. The grid groove is opened in the grid frame and is adapted to the grid frame. The straight groove is opened on the grid frame at the center of four adjacent electromagnetic mounting holes. The straight groove is communicated with the grid groove. An air hole communicated with the grid groove is opened on the outer side wall of the grid frame. The air hole is connected to an air pipe, and the air pipe is connected to the ventilation hole of an external suction device.

[0013] Further, a grid frame is arranged in the grid slot, the grid frame is adapted to the grid slot, a straight rod adapted to the straight slot is fixed on the grid frame, the straight rod is inserted in the straight slot, and the grid frame is slidably arranged in the grid slot along the length direction of the straight slot; A universal ball is installed at one end of the straight rod away from the grid frame.

[0014] Furthermore, the detection cylinder and the clamping cylinder are both air cylinders with rods or hydraulic cylinders with rods.

[0015] Furthermore, the driving motor is a stepping motor or a servo motor.

[0016] The beneficial effects of the present invention are as follows: in the electromagnetic clamping mechanism of a machine tool of the present invention, the workpiece can be transported to the detection mechanism by the conveying mechanism, the detection mechanism can simultaneously perform airtightness detection on the placement surfaces on both sides of the workpiece, the workpiece that has passed the airtightness detection can be transported to the classification mechanism by the conveying mechanism for classification, the staff can more intuitively distinguish the workpiece that meets the airtightness requirements, the workpiece that meets the airtightness requirements after detection can be placed on the electromagnetic suction block, the electromagnetic suction block can suck and fix the workpiece, and the machine tool is convenient for processing the workpiece; The detection mechanism can perform airtightness detection on both sides of the placement surface of the workpiece at the same time. Compared with the airtightness detection on only one side of the placement surface of the workpiece, the detection range is larger, and when detecting the placement surfaces on both sides of the workpiece, there is no need to turn the workpiece over, and both sides of the placement surface of the workpiece can be detected, thereby avoiding the situation where the workpiece is scratched due to turning the workpiece over, reducing the waste of the workpiece. In addition, after the workpieces that have passed the airtightness detection are classified by the classification mechanism, the staff can more easily find the workpieces that meet the airtightness requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic structural diagram of an electromagnetic clamping mechanism for a machine tool provided by an embodiment of the present invention; Figure 2 A schematic diagram of a partial exploded structure of an output mechanism, a classification mechanism and a detection mechanism in an electromagnetic clamping mechanism of a machine tool provided by an embodiment of the present invention; Figure 3 A schematic diagram of an exploded structure of an electromagnetic frame in an electromagnetic clamping mechanism for a machine tool provided by an embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 A side view of an electromagnetic frame placed on a base in an electromagnetic clamping mechanism for a machine tool provided by an embodiment of the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 7 for Figure 6 Schematic diagram of the enlarged mechanism of part C in the middle.

[0019] In the figure: 100, base; 200, classification mechanism; 210, bearing plate; 220, partition plate; 201, left flat area; 202, right flat area; 203, middle area; 300, conveying mechanism; 310, conveying roller; 321, conveying wheel; 322, driving motor; 323, driving belt; 400, electromagnetic frame; 401, electromagnetic suction block; 410, grid frame; 4101, electromagnetic mounting hole; 411, outer frame; 412, cross bar; 413, longitudinal bar; 414 , air hole; 415, air pipe; 421, grid groove; 4211, horizontal groove; 4212, longitudinal groove; 422, straight groove; 430, grid frame; 433, straight rod; 431, first rod; 432, second rod; 4331, universal ball; 500, mounting frame; 510, fixed frame; 511, detection cylinder; 5111, movable frame; 5112, first mounting plate; 5113, piston rod; 512, clamping cylinder; 5121, second mounting plate; 5122, piston cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] like Figure 1 and Figure 2 As shown, an electromagnetic clamping mechanism for a machine tool provided by an embodiment of the present invention includes a base 100, a classification mechanism 200 and a conveying mechanism 300. An electromagnetic frame 400 and a mounting frame 500 are installed on the base 100, and an electromagnetic suction block 401 is arranged in the electromagnetic frame 400, and the electromagnetic suction block 401 can be used to fix the workpiece. Two groups of detection mechanisms are arranged on the mounting frame 500, and the two groups of detection mechanisms correspond to the placement surfaces on both sides of the workpiece respectively, and can simultaneously perform air tightness detection on the corresponding placement surfaces. The classification mechanism 200 is arranged on the mounting frame 500, and the classification mechanism 200 is used to classify the workpieces that meet the air tightness requirements, and more intuitively display the workpieces that can be sucked by the electromagnetic suction block 401. The conveying mechanism 300 is arranged on the mounting frame 500, and the conveying mechanism 300 is used to convey the workpiece to the detection mechanism and the classification mechanism 200.

[0024] Specifically, the present invention can be arranged inside a machine tool. The base 100 can be a flat plate installed inside the machine tool. The mounting frame 500 can be a frame body that is symmetrically arranged left and right on the base 100. The mounting frame 500 can be a "U"-shaped frame body, and the mounting frame 500 can include two side plates and a bottom plate, and the two side plates are respectively fixed on both sides of the bottom plate. The two sets of detection mechanisms are both arranged on the mounting frame 500 and can be respectively arranged on the two side plates of the mounting frame 500. The two sets of detection mechanisms respectively correspond to the two placement surfaces of the workpiece to be processed, and can simultaneously perform airtightness detection on the corresponding workpiece placement surfaces. The conveying mechanism 300 is arranged between the bottom plate and the side plates of the mounting frame 500 and is used for the movement of the workpiece on the mounting frame 500. The sorting mechanism 200 can be arranged inside the mounting frame 500 and can receive the workpieces that meet the airtightness requirements after being conveyed by the conveying mechanism 300 and detected by the detection mechanism.

[0025] It should be noted that the present invention is applicable to a variety of machine tools that can fix workpieces by electromagnetic force, including but not limited to surface grinders, gantry milling machines, gantry planers, etc. The workpieces mentioned in the present invention are standard cube workpieces or cuboid workpieces, and both include at least two opposite placement surfaces. After performing airtightness detection on the placement surfaces of the workpiece and sorting the workpiece, the workpieces that meet the airtightness requirements can be placed on the electromagnetic chuck 401 manually or mechanically, and the placement surface of the workpiece that meets the airtightness requirements is brought into contact with the electromagnetic chuck 401, thereby completing the placement of the workpiece on the electromagnetic chuck 401.

[0026] When performing airtightness detection on the workpiece in this embodiment, first place the workpiece to be detected on the mounting frame 500. The conveying mechanism 300 can convey the workpiece to the position of the detection mechanism, and then the two sets of detection mechanisms respectively perform airtightness detection on the two placement surfaces of the workpiece. After the airtightness detection of the two placement surfaces of the workpiece is completed, the conveying mechanism 300 can convey the detected workpiece to the sorting mechanism 200. The sorting mechanism 200 can sort the workpieces that meet the airtightness requirements, and can more intuitively show which side placement surface of the workpiece meets the airtightness requirements, which is more convenient for placing the workpieces that meet the airtightness requirements on the electromagnetic chuck 401 inside the electromagnetic frame 400.

[0027] In some embodiments, the two sets of detection mechanisms are respectively arranged on both sides of the mounting frame 500 and are symmetrically arranged with respect to the mounting frame 500. The detection mechanisms arranged on both sides of the mounting frame 500 can simultaneously perform airtightness detection on the two placement surfaces of the workpiece, and thus can more quickly determine the workpieces that meet the airtightness requirements and can more quickly put the workpieces that meet the airtightness requirements into production.

[0028] The detection mechanism includes a fixing frame 510, which is fixed to one side of the mounting frame 500. A detection cylinder 511 and a clamping cylinder 512 are mounted on the fixing frame 510. The detection cylinder 511 is located on the side of the clamping cylinder 512 away from the mounting frame 500, and a pressure gauge capable of detecting the pressure inside its cylinder body is provided on the detection cylinder 511. One end of the output shaft of the detection cylinder 511 is connected to a moving frame 5111, and the end of the moving frame 5111 away from the detection cylinder 511 can extend into the mounting frame 500 and is connected to a first mounting plate 5112. The output shaft of the clamping cylinder 512 penetrates through the first mounting plate 5112 and can extend into the mounting frame 500. A second mounting plate 5121 is connected to the output shaft of the clamping cylinder 512. The first mounting plate 5112 and the second mounting plate 5121 are arranged opposite to each other and are parallel to each other. A piston rod 5113 is provided on the side of the first mounting plate 5112 facing the second mounting plate 5121, and a piston cylinder 5122 adapted to the piston rod 5113 is provided on the side of the second mounting plate 5121 facing the first mounting plate 5112. One end of the piston cylinder 5122 away from the first mounting plate 5112 penetrates to the side surface of the second mounting plate 5121 away from the first mounting plate 5112. The workpiece is located between two second mounting plates 5121 corresponding to two sets of detection mechanisms, and the two placement surfaces of the workpiece are respectively in close contact with the second mounting plates 5121 on its two sides.

[0029] According to the position of the output shaft of the detection cylinder 511 relative to the cylinder body of the detection cylinder 511 and the change of the pressure gauge, it can be judged whether the two placement surfaces of the workpiece meet the airtightness requirements.

[0030] Specifically, the fixing frame 510 can be an "eye" - shaped frame perpendicular to the side plate of the mounting frame 500, and the frame surface of the "eye" - shaped frame is parallel to the bottom plate of the mounting frame 500. The detection cylinder 511 and the clamping cylinder 512 can be respectively arranged on the cross bars 412 of the fixing frame 510 arranged at intervals, where the clamping cylinder 512 is closer to the mounting frame 500 than the detection cylinder 511. Both the detection cylinder 511 and the clamping cylinder 512 can be rod - type air cylinders or rod - type hydraulic cylinders. A pressure gauge can be installed on the cylinder body of the detection cylinder 511, and the pressure gauge can directly detect the pressure inside the detection cylinder 511. The moving frame 5111 is a frame fixed on the output shaft of the detection cylinder 511. The moving frame 5111 can include a bottom plate and four connecting rods. The bottom plate can be a square plate, one side of the bottom plate is fixed to one end of the output shaft of the detection cylinder 511, and the four connecting rods are all fixed on one side of the bottom plate and are respectively close to the four end corners of the bottom plate. The four connecting rods of the moving frame 5111 can surround the clamping cylinder 512 and can extend into the mounting frame 500. The four connecting rods of the moving frame 5111 extending into the mounting frame 500 can be fixedly connected to the first mounting plate 5112. The first mounting plate 5112 can be a plate parallel to the placement surface of the workpiece.

[0031] The clamping cylinder 512 can be directly arranged on the crossbar 412 of the fixing frame 510 closest to the mounting frame 500. The output shaft of the clamping cylinder 512 extends directly into the mounting frame 500 at one end away from the cylinder body thereof, and can penetrate the first mounting plate 5112 located in the mounting frame 500, and then be fixedly connected to the second mounting plate 5121. When the output shaft of the clamping cylinder 512 penetrates the first mounting plate 5112, a through hole can be formed on the first mounting plate 5112, and the side wall of the output shaft of the clamping cylinder 512 can contact the inner wall of the through hole and can slide along the axial direction of the through hole. The second mounting plate 5121 is parallel to the first mounting plate 5112. When the clamping cylinder 512 is in operation, the second mounting plate 5121 can move toward the workpiece driven by the output shaft of the clamping cylinder 512.

[0032] There can be multiple piston rods 5113, which are evenly distributed on one side of the first mounting plate 5112 facing the second mounting plate 5121. There are also multiple piston cylinders 5122, each of which corresponds to a piston rod 5113. The inner cylinder size of the piston cylinder 5122 is consistent with the plug size of the piston rod 5113. The piston rod 5113 can be inserted into the piston cylinder 5122 and its plug is sealed and fitted with the inner wall of the piston cylinder 5122. When the second mounting plate 5121 is stationary, the first mounting plate 5112 is driven by the detection cylinder 511 to approach the second mounting plate 5121, and the piston rod 5113 can be inserted into the corresponding piston cylinder 5122.

[0033] When the detection mechanism does not perform airtightness detection on the placement surface of the workpiece, the second mounting plates 5121 on both sides of the mounting frame 500 can clamp the workpiece in the center position between the side plates on both sides of the mounting frame 500, and the piston rod 5113 can be inserted into the corresponding piston cylinder 5122 and can contact the corresponding second mounting plate 5121.

[0034] When the detection mechanism performs an air-tightness test on the placement surface of the workpiece, the detection cylinder 511 will drive the first mounting plate 5112 to move away from the second mounting plate 5121 through the movable frame 5111, so that the first mounting plate 5112 can drive the piston rod 5113 to move in the corresponding piston cylinder 5122. By the distance moved by the piston rod 5113 in the piston cylinder 5122 and the changes in the pressure gauge on the detection cylinder 511, it can be determined whether the placement surfaces on both sides of the workpiece meet the air-tightness requirements.

[0035] The operating principle of this embodiment is: First, before testing the workpiece, it is necessary to set a preset pressure value A for the pressure gauge and set a preset distance B for the distance that the piston rod 5113 moves in the corresponding piston cylinder 5122; After the preset pressure value A and the preset distance B are determined, the detection of the workpiece begins. The detection process of the workpiece is as follows: The workpiece to be inspected is transported to between the two groups of inspection mechanisms of the mounting frame 500 through the conveying mechanism 300, so that the placement surfaces on both sides of the workpiece face the two sides of the mounting frame and are respectively between the two corresponding second mounting plates 5121 of the two groups of inspection mechanisms; when the workpiece to be inspected is transported to between the two corresponding second mounting plates 5121, the conveying mechanism 300 stops conveying the workpiece, and then the clamping cylinder 512 and the inspection cylinder 511 are started, and the clamping cylinder 512 pushes the second mounting plate 5121 close to the placement surface of the workpiece to be inspected, and gradually sticks to the placement surface of the workpiece to be inspected. Tighten, the detection cylinder 511 pushes the first mounting plate 5112 toward the second mounting plate 5121 through the moving frame 5111, and the piston rod 5113 can move in the piston cylinder 5122 and gradually abut against the second mounting plate 5121. When the second mounting plate 5121 clamps the workpiece to be detected at the center position of the mounting frame 500, and the piston rods 5113 abut against the second mounting plate 5121 on the corresponding side, the clamping and positioning of the workpiece to be detected are completed. At this time, the values ​​of the pressure gauges on the detection cylinders 511 on both sides of the mounting frame 500 should be equal; Afterwards, the detection cylinders 511 on both sides of the control mounting frame 500 drive the movable frame 5111 to move toward the side away from the corresponding second mounting plate 5121, the movable frame 5111 drives the first mounting plate 5112 to move, the first mounting plate 5112 drives the piston rod 5113 to move in the piston cylinder 5122, the piston rod 5113 slides in the piston cylinder 5122 toward the direction away from the corresponding second mounting plate 5121, when the distance moved by the piston rod 5113 in the piston cylinder 5122 reaches the preset distance B, the detection is completed, and the pressure values ​​in the pressure gauges on both sides of the mounting frame 500 at this time are recorded and compared with the preset pressure value A, so as to determine whether the two placement surfaces of the workpiece meet the air tightness requirements of the present invention.

[0036] Assume that the two placement surfaces of the workpiece are surface D and surface E, surface D is smooth and flat, and surface E is less flat than surface D. When the distance moved by the piston rod 5113 corresponding to surface D of the workpiece in the piston cylinder 5122 and the distance moved by the piston rod 5113 corresponding to surface E of the workpiece in the piston cylinder 5122 both reach the preset distance B, since the flatness of surface D is greater than that of surface E, the suction force of the piston cylinder 5122 corresponding to surface D of the workpiece on the surface D of the workpiece is greater than the suction force of the piston cylinder 5122 corresponding to surface E of the workpiece on the surface E of the workpiece. That is to say, the piston rod 5113 on the side of surface D of the workpiece needs to overcome a greater force when moving the preset distance B in the piston cylinder 5122. At this time, the detection cylinder 511 on the D side of the workpiece needs to provide a greater force to pull the corresponding first mounting plate 5112 to move. Because the cylinder body such as the detection cylinder 511 (whether it is a pneumatic cylinder, a hydraulic cylinder or other cylinder body that relies on pressure to expand and contract) needs to be in a negative pressure state when contracting its corresponding plug rod, the smaller the negative pressure, the greater the force to contract the plug rod. Therefore, in order to provide a greater contraction force to the plug rod of the detection cylinder 511, the pressure in the detection cylinder 511 on the D side of the workpiece must be smaller than the pressure in the detection cylinder 511 on the E side of the workpiece. This can be used to determine whether the air tightness of the workpiece placement surface meets the requirements.

[0037] The criteria for judging whether the air tightness of the placement surfaces on both sides of the workpiece meets the requirements are as follows: In the conveying direction of the workpiece, if the values ​​displayed on the pressure gauges on the left and right sides of the conveying direction are both less than or equal to the preset pressure value A, it means that both sides of the workpiece placement surface meet the airtightness requirements. If the value on the left pressure gauge is less than the value on the right pressure gauge, it means that the left placement surface of the workpiece has better airtightness, and the left placement surface of the workpiece can be placed on the electromagnetic suction block 401 in the electromagnetic frame 400, and vice versa. In the conveying direction of the workpiece, if the values ​​displayed on the pressure gauges on the left and right sides of the conveying direction are both less than or equal to the preset pressure value A, and the values ​​on the pressure gauges on both sides are substantially equal, it not only indicates that both sides of the placement surfaces of the workpiece meet the airtightness requirements, but also indicates that the placement surfaces on both sides of the workpiece are similar in smoothness, and any one of the placement surfaces on both sides of the workpiece can be placed on the electromagnetic suction block 401 in the electromagnetic frame 400; In the conveying direction of the workpiece, if the value displayed on the pressure gauge on the left side of the conveying direction is less than or equal to the preset pressure value A, and the value displayed on the pressure gauge on the right side is greater than the preset pressure value A, it means that the left side of the workpiece meets the airtightness requirements, and vice versa; In the conveying direction of the workpiece, if the values ​​displayed on the pressure gauges on the left and right sides of the conveying direction are greater than the preset pressure value A, it means that the placement surfaces on both sides of the workpiece do not meet the airtightness requirements. At this time, if the clamping force applied to the workpiece by the second mounting plates 5121 on both sides of the workpiece is simultaneously removed, the workpiece can be removed from the mounting frame 500.

[0038] After determining the placement surface of the workpiece, the detection cylinder 511 and the clamping cylinder 512 are driven to retract at the same time, so that the first mounting plate 5112 and the second mounting plate 5121 move synchronously and both are away from the workpiece. When the second mounting plate 5121 is away from the workpiece, the workpiece is subjected to the suction force applied by the piston cylinder 5122 to the workpiece, and then the workpiece is driven to move in the direction of the placement surface that meets the airtightness requirements.

[0039] If both sides of the workpiece's placement surfaces meet the airtightness requirements, the side to which the workpiece moves indicates which side has better airtightness; if both sides of the workpiece's placement surfaces meet the airtightness requirements, if the distance the workpiece moves left and right is extremely small or even negligible, it indicates that the airtightness of the placement surfaces on both sides of the workpiece is similar; if one side of the workpiece's placement surface meets the airtightness requirements and the other side does not meet the airtightness requirements, the workpiece will move toward the side that meets the airtightness requirements; if both sides of the workpiece's placement surfaces do not meet the airtightness requirements, the workpiece will be directly removed from the mounting frame 500, and then the new workpiece will be tested for airtightness.

[0040] After the airtightness test is completed on the placement surfaces on both sides of the workpiece, the workpiece that does not meet the airtightness requirements is directly taken out of the mounting frame 500, and the workpiece that meets the airtightness requirements is transported to the classification mechanism 200 under the drive of the conveying mechanism 300. The classification mechanism 200 can classify the workpieces that meet the airtightness requirements and can more intuitively display which side of the placement surface of the workpiece meets the airtightness requirements, making it easier to place the workpiece that meets the airtightness requirements on the electromagnetic suction block 401 in the electromagnetic frame 400.

[0041] In this embodiment, two detection mechanisms can simultaneously perform airtightness detection on the two placement surfaces of the workpiece. After the detection, the workpiece can be directly transported to the classification mechanism 200 by the conveying mechanism 300. The staff can know more clearly and intuitively whether the placement surface of the workpiece meets the airtightness requirements, and can more conveniently place the placement surface of the workpiece that meets the airtightness requirements on the electromagnetic suction block 401 in the electromagnetic frame 400. The better the airtightness of the workpiece placement surface, the smoother the placement surface, the fewer scratches, grooves and other structures that affect the smoothness on the placement surface, the larger the area in contact with the electromagnetic suction block 401, and the greater the reinforcement force / suction force of the workpiece with a smooth placement surface of the electromagnetic suction block 401. When the electromagnetic suction block 401 sucks the workpiece tightly, the more difficult it is for the workpiece to shake on the electromagnetic frame 400, and the more stable the machine tool will be when processing the workpiece.

[0042] In some embodiments, the conveying mechanism 300 includes a conveying roller 310 for carrying the workpiece to be inspected, and the conveying roller 310 is rotated by a driving assembly arranged on the mounting frame 500. The conveying roller 310 can be a cylindrical roller shaft rotatably arranged between the two side plates of the mounting frame 500, and the two ends of the conveying roller 310 can penetrate the two side plates of the mounting frame 500, and the two ends of the conveying roller 310 can be respectively connected to the plate surface of the corresponding side plate of the mounting frame 500. There can be multiple conveying rollers 310, and the multiple conveying rollers 310 are evenly distributed along the length direction of the first mounting plate 5112. A plurality of roller grooves can be opened on the bottom plate of the mounting frame 500, and the plurality of roller grooves are evenly distributed along the length direction of the first mounting plate 5112, and the plurality of conveying rollers 310 are respectively arranged in the plurality of roller grooves. The workpiece to be inspected can be placed on the plurality of conveying rollers 310, and can be moved in the lower mounting frame 500. And it can be transported between the second mounting plates 5121 corresponding to the two detection mechanisms.

[0043] The conveying roller 310 is rotated by a driving assembly arranged on the mounting frame 500. The driving assembly may include a conveying wheel 321. One end of the roller shaft may be fixedly connected to a fixed shaft. The conveying wheel 321 is sleeved and fixed on the fixed shaft. The conveying wheel 321 is coaxially arranged with the fixed shaft and the conveying roller 310. The mounting frame 500 is provided with a driving motor 322. The driving motor 322 may be installed on a side plate of the mounting frame 500 facing the conveying wheel 321. A driving wheel is installed on the output shaft of the driving motor 322. A driving belt 323 is arranged on the driving wheel. The driving belt 323 may be sleeved on the conveying wheel 321 and the driving wheel at the same time. When the driving motor 322 is running, the driving motor 322 can drive the driving wheel to rotate, and then drive the driving belt 323 to rotate, and the driving belt 323 can drive the conveying wheel 321 to rotate, and finally the driving motor 322 drives the conveying roller 310. When the conveying roller 310 rotates, the workpiece can be moved in the mounting frame 500, and the workpiece can be transported to the detection mechanism or the classification mechanism 200 under the drive of the conveying roller 310.

[0044] In this embodiment, the conveying wheel 321 and the driving wheel can be sprocket wheels, and the corresponding driving belt 323 can be a chain. The chain is sleeved on the driving wheel and the conveying wheel 321 and meshes with the driving wheel and the conveying wheel 321, so that the output shaft of the driving motor 322 can ensure that the conveying wheel 321 can rotate synchronously with the driving wheel when rotating, and ensure that the workpiece can be conveyed by the conveying roller 310. The driving motor 322 can be selected as a stepper motor or a servo motor. When using the stepper motor and the servo motor, it is easier for the staff to control the rotation speed of the stepper motor and the driving motor 322, and then it is easier to control the moving speed of the workpiece on the mounting frame 500, so as to avoid the workpiece from slipping on the conveying roller 310 when the conveying roller 310 stops rotating due to the moving speed of the workpiece being too fast, and to avoid the workpiece from hitting the mounting frame 500 and other objects after slipping, thereby damaging the workpiece.

[0045] In some embodiments, the classification mechanism 200 includes a carrier plate 210 and a partition plate 220. The carrier plate 210 is disposed on the mounting frame 500 and can receive the workpieces transported by the transport roller 310. The partition plate 220 is disposed on the carrier plate 210. The partition plate 220 divides the space enclosed by the carrier plate 210 and the mounting frame 500 into a middle area 203, a left flat area 201, and a right flat area 202. The left flat area 201 is used to carry workpieces with a flat left placement surface, the right flat area 202 is used to carry workpieces with a flat right placement surface, and the middle area 203 is used to carry workpieces with flat placement surfaces on both sides.

[0046] Specifically, the supporting plate 210 is arranged on the bottom plate of the mounting frame 500 and is located between the side plates of the mounting frame 500. The supporting plate 210 is located on the conveying path of the conveying roller 310. The conveying roller 310 can convey the inspected workpiece to the supporting plate 210 under the drive of the driving component in the above embodiment. Two partition plates 220 are provided, and both partition plates 220 are vertically fixed on the supporting plate 210. The two partition plates 220 can divide the space formed between the supporting plate 210 and the two side plates of the mounting frame 500 into a left flat area 201, a right flat area 202 and a middle area 203. The left flat area 201 is the area formed between the side plate on the left side of the mounting frame 500 and the adjacent partition plate 220 in the conveying direction of the conveying roller 310 to the workpiece. The right flat area 202 is the area formed between the side plate on the right side of the mounting frame 500 and the adjacent partition plate 220 in the conveying direction of the conveying roller 310 to the workpiece. The middle area 203 is the area formed between the two partition plates 220.

[0047] It can be seen from the above-mentioned embodiments that the workpiece may approach the side panels of the mounting frame 500 when being inspected by the inspection mechanism. In the direction in which the conveying roller 310 conveys the workpiece, the workpiece whose left placement surface meets the air-tightness requirements and approaches the left side panel of the mounting frame 500 will be conveyed to the left flat area 201, and the workpiece whose right placement surface meets the air-tightness requirements and approaches the right side panel of the mounting frame 500 will be conveyed to the right flat area 202. The workpiece whose left and right placement surfaces meet the requirements will be conveyed to the middle area 203 by the conveying roller 310 because the distance moved to the left or to the right in the mounting frame 500 is too small, and the workpiece whose left and right placement surfaces do not meet the air-tightness requirements will be directly taken out of the mounting frame 500 by the staff.

[0048] During the implementation of this embodiment, the workpiece to be inspected is placed on the conveying roller 310 from one end of the mounting frame 500 away from the carrier plate 210, and the two placement surfaces of the workpiece to be inspected are respectively facing the two sides of the mounting frame 500, and then the driving motor 322 is started, and the driving motor 322 drives the conveying roller 310 to rotate through the driving belt 323 and the conveying wheel 321. The rotation of the conveying roller 310 can convey the workpiece to be inspected to between the detection mechanisms on both sides of the mounting frame 500, and then the driving motor 322 is turned off, and then the detection mechanism is controlled to start airtightness detection on the placement surface of the workpiece; From the above embodiments, it can be known how to detect the placement surface of the workpiece and how to determine whether the placement surface of the workpiece meets the airtightness requirements, which will not be described in detail here; After determining the placement surface of the workpiece, the detection cylinder 511 and the clamping cylinder 512 are driven to retract at the same time, so that the first mounting plate 5112 and the second mounting plate 5121 move synchronously and both are away from the workpiece. When the second mounting plate 5121 is away from the workpiece, the workpiece is subjected to the suction force exerted by the piston cylinder on the workpiece, and then the workpiece is driven to move in the direction of the placement surface that meets the airtightness requirements.

[0049] If both sides of the workpiece placement surface meet the airtightness requirements, the side to which the workpiece moves indicates which side has better airtightness; if both sides of the workpiece placement surface meet the airtightness requirements, and the distance the workpiece slides left and right on the conveying roller 310 is extremely small or even negligible, it means that the airtightness of the placement surfaces on both sides of the workpiece is similar; if one side of the workpiece placement surface meets the airtightness requirements, and the other side of the workpiece placement surface does not meet the airtightness requirements, the workpiece will move to the side that meets the airtightness requirements; if both sides of the workpiece placement surface do not meet the airtightness requirements, the workpiece will be directly removed from the mounting frame 500, and then the new workpiece will be tested for airtightness.

[0050] After the workpiece moves on the mounting frame 500, the drive motor 322 is started. The drive motor 322 drives the conveying roller 310 to rotate through the drive belt 323 and the conveying wheel 321. The conveying roller 310 drives the workpiece to move. The conveying roller 310 can convey the workpiece to the supporting plate 210 of the classification mechanism 200, and convey it to the corresponding left flat area 201, right flat area 202 or middle area 203. Among them, the left side of the workpiece that meets the air-tightness requirement is conveyed to the left flat area 201, and the right side of the workpiece that meets the requirement is conveyed to the right flat area 202. If both sides of the placing surfaces meet the air-tightness requirement, the side with better air-tightness will be conveyed to that side area. If the air-tightness of the placing surfaces on both sides is similar and the difference is very small, the workpiece will be conveyed to the middle area 203.

[0051] By classifying the workpieces, the staff can more easily and directly select the workpieces suitable for placement on the electromagnetic suction block 401. For the workpiece located in the left flat area 201, the side of the placement surface that meets the airtightness requirements is placed on the electromagnetic suction block 401 facing the electromagnetic frame 400. For the workpiece located in the right flat area 202, the side of the placement surface that meets the airtightness requirements is placed on the electromagnetic suction block 401 facing the electromagnetic frame 400. For the workpiece located in the middle area 203, the placement surface that meets the airtightness requirements on any side is placed on the electromagnetic suction block 401 facing the electromagnetic frame 400. The electromagnetic suction block 401 can better fix the workpiece that meets the airtightness requirements, so that the workpiece can be better processed.

[0052] In some embodiments, Figure 3 As shown, a grid frame 410 is disposed in the electromagnetic frame 400 , the grids of the grid frame 410 are arranged as electromagnetic mounting holes 4101 , and the electromagnetic suction block 401 is arranged in the electromagnetic mounting holes 4101 .

[0053] The grid frame 410 may include an outer frame 411, a crossbar 412 and a longitudinal bar 413. The outer frame 411 may be a rectangular frame. Multiple crossbars 412 and longitudinal bars 413 may be provided. Multiple crossbars 412 are evenly distributed in the outer frame 411 along the length direction of a side frame beam of the outer frame 411. Multiple longitudinal bars 413 are evenly distributed in the outer frame 411 along a direction perpendicular to the crossbar 412. The longitudinal bars 413 and the crossbar 412 are vertically crossed in the outer frame 411 to form the grid frame 410. The grid frame 410 has a plurality of grids, and the plurality of grids are evenly distributed on the grid frame 410, that is, the electromagnetic mounting holes 4101 are evenly distributed on the grid frame 410. The number of electromagnetic suction blocks 401 is equal to the number of electromagnetic mounting holes 4101, and the electromagnetic suction blocks 401 correspond to the electromagnetic mounting holes 4101 one by one. The electromagnetic suction blocks 401 evenly distributed on the grid frame 410 can generate a more uniform suction force on the workpiece placed on the electromagnetic frame 400 , and can reinforce the workpiece on the electromagnetic frame 400 more stably.

[0054] Further, such as Figure 3 , Figures 5 to 7 As shown, an airtight compensation groove is provided in the grid frame 410, and the airtight compensation groove includes a grid groove 421 and a straight groove 422. The grid groove 421 is opened in the grid frame 410 and is adapted to the grid frame 410. The straight groove 422 is opened on the grid frame 410 at the center of four adjacent electromagnetic mounting holes 4101. The straight groove 422 is communicated with the grid groove 421. An air hole 414 communicating with the grid groove 421 is opened on the outer wall of the grid frame 410. The air hole 414 runs through the corresponding side wall of the electromagnetic frame 400. The air hole 414 is connected to an air pipe 415. The air pipe 415 can extend from the air hole 414 on the side wall of the electromagnetic frame 400 and be connected to the ventilation hole of the external suction device.

[0055] Specifically, the grid slot 421 may include a transverse slot 4211 and a longitudinal slot 4212, the transverse slot 4211 and the longitudinal slot 4212 are arranged vertically and crosswise, and the transverse slot 4211 and the longitudinal slot 4212 form a grid-shaped connecting slot body, the transverse slot 4211 in the grid slot 421 may be opened in the transverse bar 412 of the grid frame 410, and the longitudinal slot 4212 may be opened in the longitudinal bar 413 of the grid frame 410, wherein the longitudinal slot 4212 may penetrate the slot bottom of the transverse slot 4211 and extend to the bottom of the transverse slot 4211. The straight slot 422 is opened on the grid frame 410 at the center of four adjacent electromagnetic mounting holes 4101, that is, the straight slot 422 is opened at the intersection of the transverse bar 412 and the longitudinal bar 413 of the grid frame 410, and the straight slot 422 is connected to the grid slot 421, and specifically, the straight slot 422 is connected to the transverse slot 4211. The air hole 414 is provided on the side wall of the grid frame 410 and can communicate with the grid groove 421. Specifically, the air hole 414 can communicate with the part of the groove body of the longitudinal groove 4212 that penetrates the transverse groove 4211. The air pipe 415 connected to the air hole 414 can be connected to the ventilation hole of the external suction device. The external suction device can be an existing device with air extraction and supply functions such as a fan and an exhaust fan. The ventilation hole is the exhaust hole of the fan and the exhaust fan. The external suction device can pump the inside of the grid groove 421 into a negative pressure state through the air pipe 415.

[0056] When the workpiece is placed on the electromagnetic frame 400, the workpiece will cover some notches of the straight grooves 422, and the electromagnetic suction block 401 can position and fix the workpiece. When the external suction device is turned on to suck the air in the grid groove 421, the force applied to the workpiece includes not only the electromagnetic suction force applied by the electromagnetic suction block 401 to the workpiece, but also the suction force of the grid groove 421 due to the negative pressure state of the grid groove 421, which can further strengthen the fixation of the workpiece on the electromagnetic frame 400 and further reduce the possibility of the workpiece moving on the electromagnetic frame 400, so that the workpiece will not slide due to the touch of the tool head of the machine tool or the shaking of the machine tool during processing, so that the workpiece can be processed better.

[0057] In some embodiments, Figure 3-Figure 7 As shown, a grid frame 430 is slidably arranged in the grid groove 421, the grid frame 430 is adapted to the grid groove 421, a straight rod 433 adapted to the straight groove 422 is fixed on the grid frame 430, the straight rod 433 is inserted in the straight groove 422, and the grid frame 430 is slidably arranged in the grid groove 421 along the length direction of the straight groove 422.

[0058] The grid frame 430 may include a first rod 431 adapted to the transverse groove 4211 of the grid groove 421 and a second rod 432 adapted to the longitudinal groove 4212 of the grid groove 421. A plurality of the first rods 431 and the second rods 432 are provided, and are respectively located in the corresponding transverse groove 4211 and longitudinal groove 4212. The first rod 431 can be closely attached to the side wall of the transverse groove 4211 in the corresponding transverse groove 4211, and the second rod 432 can be closely attached to the side wall of the longitudinal groove 4212 in the corresponding longitudinal groove 4212, and the first rod 431 and the second rod 432 can slide up and down in the corresponding transverse groove 4211 and longitudinal groove 4212 along the length direction of the straight groove 422. A sliding groove parallel to the length direction of the straight groove is provided on the outermost groove wall of the grid groove 421, that is, the groove wall of the transverse groove 4211 and the longitudinal groove 4212 of the outer frame 411 of the grid frame 410 of the grid groove 421. A sliding block adapted to the sliding groove is fixed on the side walls of the first rod 431 and the second rod 432 located in the transverse groove 4211 and the longitudinal groove 4212 of the outer frame 411 of the grid groove 421 closest to the grid frame 410. The sliding block is inserted into the sliding groove and the groove wall of the sliding block is tightly fitted with the groove wall of the sliding groove, thereby realizing the sliding of the grid frame 430 in the grid groove 421. A plurality of straight rods 433 are provided, and the plurality of straight rods 433 are respectively fixed at a plurality of intersections of the first rod 431 and the second rod 432. The plurality of straight rods 433 are parallel to each other and are perpendicular to the first rod 431 and the second rod 432. The straight rod 433 is adapted to the straight groove 422 of the airtight compensation groove. The straight rod 433 is inserted into the straight groove 422, and the side wall of the straight rod 433 can be completely fitted with the inner side wall of the straight groove 422. The straight rod 433 can slide in the straight groove 422 along the length direction of the straight groove 422, and can slide synchronously with the first rod 431 and the second rod 432. The grid frame 430 can seal the grid groove 421, and can slide in the grid groove 421 along the length direction of the straight groove 422. When air is inflated into the grid groove 421 through an external suction device, the grid frame 430 drives the straight rod 433 to move in the straight groove 422 in a direction away from the bottom of the grid groove 421 , and the straight rod 433 can lift up the workpiece placed on the electromagnetic frame 400 .

[0059] A universal ball 4331 is installed at one end of the straight rod 433 away from the grid frame 430 . The universal ball 4331 can protrude from the grid frame 410 and directly contact the placement surface of the workpiece, thereby enabling the workpiece to slide on the grid frame 410 .

[0060] Specifically, the universal ball 4331 has a certain load-bearing capacity and can support the workpiece. When the straight rod 433 moves in a direction away from the bottom of the grid groove 421, it can drive the universal ball 4331 to move in a direction away from the bottom of the grid groove 421, thereby supporting the workpiece. When the universal ball 4331 protrudes from the notch of the straight groove 422, the workpiece is placed on the universal ball 4331, which can realize the sliding of the workpiece on the electromagnetic frame 400, making it more convenient to move the workpiece to a suitable processing position.

[0061] After the workpiece is moved to a suitable processing position, the external suction device is controlled to gradually stop inflating the grid slot 421, and gradually start to extract air from the grid slot 421. During this process, the workpiece gradually approaches the grid frame 410 and is finally placed on the grid frame 410. Since the external suction device extracts air from the grid slot 421, the grid frame 430 gradually approaches the bottom of the grid slot 421 in the grid slot 421. At this time, the space in the straight slot 422 covered by the workpiece becomes larger, and the air pressure becomes negative. The negative pressure state of the straight slot 422 can further reinforce the workpiece, thereby enabling the workpiece to be fixed more stably on the electromagnetic frame 400 / grid frame 410, making it more convenient for the machine tool to process the workpiece.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine tool electromagnetic clamping mechanism, characterized in that: include: A base (100), wherein an electromagnetic frame (400) and a mounting frame (500) are arranged on the base (100), wherein two groups of detection mechanisms are arranged on the mounting frame (500), wherein the two groups of detection mechanisms correspond to the placement surfaces on both sides of the workpiece respectively and can simultaneously perform airtightness detection on the corresponding workpiece placement surfaces, wherein an electromagnetic suction block (401) is arranged in the electromagnetic frame (400), and wherein the electromagnetic suction block (401) can fix a workpiece that meets the airtightness requirements; A classification mechanism (200), the classification mechanism (200) being arranged on the mounting frame (500), and the classification mechanism (200) being used to classify workpieces that meet airtightness detection requirements; A conveying mechanism (300), wherein the conveying mechanism (300) is arranged on the mounting frame (500), and the conveying mechanism (300) is used to convey the workpiece to the detection mechanism and the classification mechanism (200).

2. The electromagnetic clamping mechanism for a machine tool according to claim 1, characterized in that: The two groups of detection mechanisms are respectively arranged on two sides of the mounting frame (500), and are symmetrically arranged with respect to the mounting frame (500); The detection mechanism comprises a fixed frame (510), wherein the fixed frame (510) is arranged on one side of the mounting frame (500), a detection cylinder (511) and a clamping cylinder (512) are installed on the fixed frame (510), the detection cylinder (511) is located on a side of the clamping cylinder (512) away from the mounting frame (500), a pressure gauge is arranged on the detection cylinder (511), an output shaft of the detection cylinder (511) is connected to a movable frame (5111), an end of the movable frame (5111) away from the detection cylinder (511) extends into the mounting frame (500) and is connected to a first mounting plate (5112), an output shaft of the clamping cylinder (512) passes through the first mounting plate (5112) and extends into the mounting frame (500), and the clamping cylinder (512) is arranged on the side of the clamping cylinder (512) away from the mounting frame (500). A second mounting plate (5121) is connected to the output shaft of (512), a piston rod (5113) is arranged on the side of the first mounting plate (5112) facing the second mounting plate (5121), a piston cylinder (5122) matched with the piston rod (5113) is arranged on the side of the second mounting plate (5121) facing the first mounting plate (5112), and an end of the piston cylinder (5122) away from the first mounting plate (5112) passes through a side of the second mounting plate (5121) away from the first mounting plate (5112), and the workpiece is located between two second mounting plates (5121) corresponding to the two groups of the detection mechanisms, and the two placement surfaces of the workpiece are respectively in close contact with the second mounting plates (5121) on both sides thereof.

3. The electromagnetic clamping mechanism for a machine tool according to claim 1, characterized in that: The conveying mechanism (300) comprises a conveying roller (310) for carrying a workpiece to be inspected, and the conveying roller (310) is rotated by a driving assembly arranged on the mounting frame (500).

4. The electromagnetic clamping mechanism for machine tools according to claim 3, characterized in that: The driving assembly comprises a conveying wheel (321), the conveying wheel (321) being mounted on one end of the conveying roller (310), the mounting frame (500) being provided with a driving motor (322), the output shaft of the driving motor (322) being provided with a driving wheel corresponding to the conveying wheel (321), the conveying wheel (321) and the driving wheel being sleeved with a same driving belt (323), the driving motor (322) being able to drive the conveying wheel (321) to rotate via the driving belt (323), and further being able to drive the conveying roller (310) to rotate.

5. The electromagnetic clamping mechanism for a machine tool according to claim 4, characterized in that: The classification mechanism (200) comprises a carrying plate (210) and a partition plate (220); the carrying plate (210) is arranged on the mounting frame (500) and is capable of receiving workpieces transported by the transport roller (310); the partition plate (220) is arranged on the carrying plate (210); and the partition plate (220) divides the mounting frame (500) into a middle area (203), a left flat area (201), and a right flat area (202).

6. The electromagnetic clamping mechanism for machine tools according to claim 1, characterized in that: A grid frame (410) is arranged inside the electromagnetic frame (400), the grids of the grid frame (410) are arranged as electromagnetic mounting holes (4101), and the electromagnetic suction block (401) is arranged inside the electromagnetic mounting holes (4101).

7. The electromagnetic clamping mechanism for a machine tool according to claim 6, characterized in that: An airtight compensation groove is provided in the grid frame (410), and the airtight compensation groove includes a grid groove (421) and a straight groove (422). The grid groove (421) is opened in the grid frame (410) and is adapted to the grid frame (410). The straight groove (422) is opened on the grid frame (410) at the center of four adjacent electromagnetic mounting holes (4101). The straight groove (422) is communicated with the grid groove (421). An air hole (414) communicating with the grid groove (421) is opened on the outer side wall of the grid frame (410). The air hole (414) is connected to an air pipe (415), and the air pipe (415) is connected to the ventilation hole of an external suction device.

8. The electromagnetic clamping mechanism for a machine tool according to claim 7, characterized in that: A grid frame (430) is arranged in the grid slot (421), the grid frame (430) is adapted to the grid slot (421), a straight rod (433) adapted to the straight slot (422) is fixed on the grid frame (430), the straight rod (433) is inserted in the straight slot (422), and the grid frame (430) is slidably arranged in the grid slot (421) along the length direction of the straight slot (422); A universal ball (4331) is installed at one end of the straight rod (433) away from the grid frame (430).

9. The electromagnetic clamping mechanism for a machine tool according to claim 1, characterized in that: The detection cylinder (511) and the clamping cylinder (512) are both air cylinders with rods or hydraulic cylinders with rods.

10. The electromagnetic clamping mechanism for machine tools according to claim 1, characterized in that: The driving motor (322) is a stepping motor or a servo motor.

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