Silicon steel sheet adsorption gripper with adjusting structure

Abstract

The utility model relates to the technical field of silicon steel sheet adsorption grippers, in particular to a silicon steel sheet adsorption gripper with an adjusting structure, which comprises a gripper frame, two ends of the gripper frame are both telescopically connected with movable plates, and the lower surfaces of the movable plates are provided with buffer mechanisms for buffering the gripper. An adjusting mechanism for adjusting the width of the gripping apparatus is arranged in the gripping apparatus frame; the buffering mechanism comprises two connecting frames, the two connecting frames are fixed to the lower ends of the two movable plates correspondingly, and the interiors of the two connecting frames are both slidably connected with fixing screw pipes. And through the arranged buffer mechanism, under the action of a buffer spring, a fixed plate can push a movable rod to slide in a fixed screw tube, then the buffer spring is pushed to be compressed, a certain buffer effect is achieved, and then the situation that the silicon steel sheet is damaged when the suction cup body collides with the silicon steel sheet is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of silicon steel sheet adsorption grab, especially to a silicon steel sheet adsorption grab with adjusting structure. BACKGROUND

[0002] The silicon steel sheet adsorption grab is a tool specially used for grabbing silicon steel sheets, mainly applied in the field of full-automatic stacking production lines of transformer cores. The silicon steel sheet adsorption grab is an automatic tool that realizes grabbing and carrying of silicon steel sheets by using principles such as magnetic force or vacuum suction. It is mainly used in the core manufacturing process of power equipment such as transformers, motors and generators to help realize fast and accurate grabbing and stacking of silicon steel sheets. With the continuous development of the power industry and the continuous progress of automation technology, the application field of the silicon steel sheet adsorption grab will be more extensive, and the technical performance will be continuously improved.

[0003] The existing silicon steel sheet adsorption grab uses a non-variable-distance grab mechanism to grab the sheet material during the lamination process. When the distance needs to be changed, manual adjustment is required, which is inconvenient to operate and reduces work efficiency.

[0004] The existing patent (publication number: CN216609052U) discloses a variable-distance silicon steel sheet adsorption grab, which comprises a first aluminum profile. The bottom end of the first aluminum profile is provided with a linear guide rail on both sides. The second straight push cylinder can push the first pneumatic suction cup to slide on the first aluminum profile, which can change the position of the first pneumatic suction cup and realize grabbing of silicon steel sheets of different lengths, thereby improving the application range of the adsorption grab.

[0005] To solve the above problems, the existing patent provides a scheme that can push the first pneumatic suction cup to slide on the first aluminum profile by setting the second straight push cylinder, which can realize grabbing of silicon steel sheets of different lengths. However, when in use, the suction cup cannot be buffered, and after the grab is assembled with the external mechanical hand, the mechanical hand drives the grab to grab the silicon steel sheet. If the driving force of the mechanical hand to drive the grab is different each time, it will cause the suction cup and the silicon steel sheet to collide, and then cause the suction cup to be damaged, which has poor practicality. SUMMARY

[0006] The utility model aims at providing a silicon steel sheet adsorption grab with adjusting structure, which can make the fixed plate push the movable rod to slide in the fixed screw pipe under the action of the buffer spring, and then push the buffer spring to compress, realize a certain buffering effect, and effectively reduce the damage of the suction cup body to the silicon steel sheet when colliding, to solve the problems in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: A silicon steel sheet adsorption grab with adjusting structure, including grab frame, the both ends of grab frame are connected with movable plate, the lower surface of movable plate is equipped with buffer mechanism for the buffer of grab, the inside of grab frame is equipped with adjusting mechanism for the width adjustment of grab,

[0008] The buffer mechanism includes connecting frame, the connecting frame is equipped with two, two connecting frame is fixed at the lower end of two movable plate, the inside of two connecting frame is slidably connected with fixed screw pipe, the outer surface of fixed screw pipe is connected with two fixed nuts, the inside of fixed screw pipe is connected with movable rod, the outer surface of movable rod is equipped with buffer spring which is connected with the bottom of fixed screw pipe, the lower surface of buffer spring is connected with fixed plate which is fixedly connected with movable rod.

[0009] Preferably, the outer surface of the fixed screw pipe is fixed with a connecting plate, and the lower surface of the fixed plate is fixed with a suction disc body.

[0010] Preferably, the upper surface of the movable rod is fixed with a limiting block.

[0011] Preferably, the outer surface of the suction disc body is communicated with a suction port, and the outer surface of the suction disc body and close to the lower side of the suction port is communicated with a solenoid valve.

[0012] Preferably, one side of the solenoid valve is communicated with an air inlet, and the upper surface of the grab frame is fixed with an adjusting cylinder.

[0013] Preferably, the adjusting mechanism includes a double-shaft motor, and the double-shaft motor is fixed in the inside of the grab frame by screws.

[0014] Preferably, the power output shaft of the double-shaft motor is fixed with a lead screw, the outer surface of the lead screw is threadedly connected with a limiting plate fixedly connected with the movable plate, and the movable plate is slidably connected with the lead screw.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The buffer mechanism is arranged, under the action of the buffer spring, the fixed plate can push the movable rod to slide in the fixed screw pipe, and then push the buffer spring to compress, so that the certain buffering effect is realized, and the damage of the suction disc body to the silicon steel sheet when the silicon steel sheet is impacted is effectively reduced.

[0017] 2. The adjusting mechanism is arranged, the lead screws are driven to rotate, the threads of the two lead screws are different, the two limiting plates are driven to slide in the grab frame, the two connecting frames are driven to move, the distance between the two groups of suction disc bodies can be adjusted, and the adsorption width of the grab can be conveniently adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 It is a whole structure view of the present application;

[0020] Figure 2 It is a half cut structure schematic view of the present application gripper frame;

[0021] Figure 3 It is a whole structure view of the present application; Figure 2 It is an enlarged view of A;

[0022] Figure 4 It is a three-dimensional structure schematic view of the present application suction disc body.

[0023] Explanation of reference signs:

[0024] 1, gripper frame; 2, movable plate; 3, connecting frame; 31, fixed screw pipe; 32, fixed nut; 33, movable rod; 34, buffer spring; 35, fixed plate; 36, connecting plate; 37, suction disc body; 38, limiting block; 4, air suction interface; 5, electromagnetic valve; 6, air inlet; 7, double-shaft motor; 71, screw rod; 72, limiting plate; 8, adjusting electric cylinder. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] The present application provides a technical solution:

[0027] Please refer to Figures 1 to 4 A silicon steel sheet suction gripper with adjusting structure, comprising a gripper frame 1, both ends of the gripper frame 1 are telescopically connected with movable plates 2, the lower surface of the movable plate 2 is provided with a buffer mechanism for buffering the gripper, the inside of the gripper frame 1 is provided with an adjusting mechanism for adjusting the width of the gripper;

[0028] The buffer mechanism comprises two connecting frames 3, the two connecting frames 3 are respectively fixed at the lower ends of the two movable plates 2, the interiors of the two connecting frames 3 are slidably connected with fixed screw pipes 31, the outer surfaces of the fixed screw pipes 31 are threadedly connected with two fixed nuts 32, the interiors of the fixed screw pipes 31 are telescopically connected with movable rods 33, the outer surfaces of the movable rods 33 are sleeved with buffer springs 34 which are in abutting connection with the bottoms of the fixed screw pipes 31, the lower surfaces of the buffer springs 34 are in abutting connection with fixed plates 35 which are fixedly connected with the movable rods 33, the outer surfaces of the fixed screw pipes 31 are fixedly connected with connecting plates 36, the lower surfaces of the fixed plates 35 are fixedly connected with suction disc bodies 37, the upper surfaces of the movable rods 33 are fixedly connected with limit blocks 38, the outer surfaces of the suction disc bodies 37 are in communication with air suction interfaces 4, and the outer surfaces of the suction disc bodies 37 and close to the lower sides of the air suction interfaces 4 are in communication with electromagnetic valves 5.

[0029] By adopting the above technical scheme, before the silicon steel sheet suction gripper with the adjusting structure is used, the gripper frame 1 is connected with the mechanical arm, the adjusting cylinder 8 arranged on the gripper frame 1 is fixed on the output end of the mechanical arm by using a bolt, the adjusting cylinder 8 can finely adjust the position of the gripper frame 1, the air suction interface 4 on the suction disc body 37 is in communication with the external air pipe, in use, the mechanical arm drives the gripper frame 1 to move to grab the silicon steel sheet, when the suction disc body 37 contacts the silicon steel sheet, the air in the suction disc body 37 is discharged through the air pipe to adsorb the silicon steel sheet, the silicon steel sheet can be transported, the normally closed electromagnetic valve 5 is arranged, after the silicon steel sheet is transported, the electromagnetic valve 5 is opened, the external air enters the suction disc body 37 through the air inlet 6 to release the adsorption of the silicon steel sheet, when the mechanical arm drives the gripper frame 1 with too large driving force to cause the suction disc body 37 to impact the silicon steel sheet, under the action of the buffer spring 34, the fixed plate 35 can push the movable rod 33 to slide in the fixed screw pipe 31 to further push the buffer spring 34 to compress to achieve a certain buffering effect, thereby effectively reducing the damage of the suction disc body 37 to the silicon steel sheet when the suction disc body 37 impacts the silicon steel sheet, the limit block 38 can play a limiting role to avoid the movable rod 33 from falling off, the fixed nut 32 on the fixed screw pipe 31 is loosened to make the fixed screw pipe 31 horizontally move on the movable plate 2 to further adjust the distance between the suction disc bodies 37 on the connecting plate 36.

[0030] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , one side of the electromagnetic valve 5 is in communication with the air inlet 6, the upper surface of the gripper frame 1 is fixed with the adjusting cylinder 8, the adjusting mechanism comprises a double-shaft motor 7, the double-shaft motor 7 is fixed in the interior of the gripper frame 1 by a screw, the power output shaft of the double-shaft motor 7 is fixed with a lead screw 71, the outer surface of the lead screw 71 is threadedly connected with a limit plate 72 which is fixedly connected with the movable plate 2, and the movable plate 2 is slidably connected with the lead screw 71.

[0031] By adopting the technical scheme, the double-shaft motor 7 is arranged to drive the screw rods 71 to rotate, the threads of the two screw rods 71 are different, the two limiting plates 72 are driven to slide in the gripper frame 1, the two connecting frames 3 are driven to move, the distance between the two groups of suction disc bodies 37 can be adjusted, and the adsorption width of the gripper is conveniently adjusted.

[0032] Working principle: the mechanical arm drives the gripper frame 1 to move to grab the silicon steel sheet, when the suction disc body 37 contacts the silicon steel sheet, the air in the suction disc body 37 is discharged through the air pipe to adsorb the silicon steel sheet and transfer the silicon steel sheet, when the mechanical arm drives the gripper frame 1 too hard to cause the suction disc body 37 to impact the silicon steel sheet, the fixed plate 35 can drive the movable rod 33 to slide in the fixed screw pipe 31 under the action of the buffer spring 34, the buffer spring 34 is compressed, a certain buffering effect is realized, the limiting block 38 can limit the movable rod 33 from falling off, the fixed nut 32 on the fixed screw pipe 31 is loosened, the fixed screw pipe 31 moves horizontally on the movable plate 2, the distance between the suction disc bodies 37 on the connecting plate 36 is adjusted, the double-shaft motor 7 is arranged to drive the screw rods 71 to rotate, the threads of the two screw rods 71 are different, the two limiting plates 72 are driven to slide in the gripper frame 1, the two connecting frames 3 are driven to move, and the distance between the two groups of suction disc bodies 37 can be adjusted.

[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A silicon steel sheet suction gripper with adjustment structure, comprising a gripper frame (1), characterized in that: Both ends of the grab frame (1) are telescopically connected with movable plates (2), the lower surfaces of the movable plates (2) are provided with buffer mechanisms for buffering the grab, the inside of the grab frame (1) is provided with an adjusting mechanism for adjusting the width of the grab; The buffer mechanism comprises connecting frames (3), two connecting frames (3) are arranged, the two connecting frames (3) are fixed at the lower ends of the two movable plates (2), the inside of each of the two connecting frames (3) is slidably connected with a fixed screw pipe (31), the outer surface of the fixed screw pipe (31) is threadedly connected with two fixed nuts (32), the inside of the fixed screw pipe (31) is telescopically connected with a movable rod (33), the outer surface of the movable rod (33) is sleeved with a buffer spring (34) in abutment connection with the bottom of the fixed screw pipe (31), the lower surface of the buffer spring (34) is in abutment connection with a fixed plate (35) fixedly connected with the movable rod (33).

2. The silicon steel sheet suction gripper with adjustment structure according to claim 1, characterized in that: The outer surface of the fixed screw pipe (31) is fixedly connected with a connecting plate (36), the lower surface of the fixed plate (35) is fixedly connected with a suction disc body (37).

3. The silicon steel sheet suction gripper with adjustment structure according to claim 2, characterized in that: The upper surface of the movable rod (33) is fixedly connected with a limiting block (38).

4. The silicon steel sheet suction gripper with adjustment structure according to claim 3, characterized in that: The outer surface of the suction disc body (37) is connected with an air suction interface (4), the outer surface of the suction disc body (37) and below the air suction interface (4) are connected with an electromagnetic valve (5).

5. The silicon steel sheet suction gripper with adjustment structure according to claim 4, characterized in that: One side of the electromagnetic valve (5) is connected with an air inlet (6), the upper surface of the grab frame (1) is fixedly connected with an adjusting electric cylinder (8).

6. The silicon steel sheet suction gripper with adjustment structure according to claim 1, characterized in that: The adjusting mechanism comprises a double-shaft motor (7), the double-shaft motor (7) is fixedly connected with the inside of the grab frame (1) through screws.

7. The silicon steel sheet suction gripper with adjustment structure according to claim 6, characterized in that: The power output shaft of the double-shaft motor (7) is fixedly connected with a lead screw (71), the outer surface of the lead screw (71) is threadedly connected with a limiting plate (72) fixedly connected with the movable plate (2), the movable plate (2) and the lead screw (71) are in sliding connection.

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