Automatic positioning device for pressing and assembling of punched sheet

Abstract

The utility model belongs to the field of positioning device, specifically is a kind of automatic press -fitting positioning device of punching piece, including support seat, the top of support seat is stably connected with first air cylinder;The output end of first air cylinder is stably connected with slider;The one side of slider is stably connected with motor;The output end of motor is stably connected with first bevel gear, and first bevel gear is located slider interior and is rotationally connected with slider;Second bevel gear is rotationally connected in the slider interior, and second bevel gear and first bevel gear are meshing relationship;The top of second bevel gear is stably connected with screw rod;The top of slider is stably connected with sleeve;Through the cooperation of connecting rod and support block, so that punching piece group can be centered under the support of multiple support blocks when being placed, realize the positioning of device before the press -fitting of punching piece group, improve the accuracy of press -fitting assembly when the press -fitting of punching piece group.

Description

Technical Field

[0001] This utility model relates to the field of positioning devices, specifically an automatic pressing and positioning device for stamping sheets. Background Technology

[0002] Laminations are key components in motor manufacturing, typically made from soft magnetic materials such as silicon steel sheets through a stamping process. Their structure is generally ring-shaped or fan-shaped, with grooves on the inner side to accommodate windings, and mounting holes, dovetail slots, or heat dissipation fins on the outer side. The surface is coated with insulating varnish to reduce eddy current losses. The thickness of laminations is usually between 0.1mm and 0.5mm, and the material is mostly non-oriented silicon steel sheets, which have high magnetic permeability and low loss characteristics, making them a core component of the motor stator and rotor.

[0003] In motor manufacturing, laminations need to be assembled into stator or rotor cores through extrusion and pressing processes. Specifically, hundreds of laminations are stacked into one piece to form a high-rigidity core structure. This can reduce interlayer air gaps, lower magnetic resistance, suppress eddy currents, and improve motor efficiency.

[0004] In the existing technology, when pressing a lamination, the lamination is usually fixed by fitting it onto the outside of the column. However, during use and observation, it was found that this fixing method can only install laminations of a single size, which is difficult to meet the production needs of fixing laminations of multiple sizes.

[0005] Therefore, an automatic pressing and positioning device for punching sheets is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: An automatic pressing and positioning device for punching sheets, comprising a support base, a first cylinder fixedly connected to the top of the support base; a slider fixedly connected to the output end of the first cylinder; a motor fixedly connected to one side of the slider; a first bevel gear fixedly connected to the output end of the motor, the first bevel gear being located inside the slider and rotatably connected to the slider; a second bevel gear rotatably connected inside the slider, and the second bevel gear and the first bevel gear being meshed; a screw fixedly connected to the top of the second bevel gear; a sleeve fixedly connected to the top of the slider; the screw and the sleeve being rotatably connected; a nut threadedly connected to the middle of the screw; the sleeve… A vertical rod is fixed to the top of the inner wall of the cylinder, and the vertical rod and nut are connected through each other and are slidably fitted. Multiple connecting rods are rotatably connected to the outer wall of the nut. A support block is rotatably connected to the end of each connecting rod. The support block and sleeve are connected through each other and are slidably fitted, and the end of the support block is chamfered. A punch assembly is provided on the top of the slider. Multiple mounting holes are opened on the inner wall of the punch assembly, and multiple positioning holes are opened on the outer wall of the punch assembly. A pressing assembly is provided on the top of the support base. Through the cooperation of the connecting rods and the support block, punch assemblies of different sizes can be centered under the internal support of multiple support blocks when placed, realizing the positioning of the punch assembly before pressing and improving the accuracy of the pressing assembly when pressing the punch assembly.

[0008] Preferably, the pressing assembly includes a vertical plate; the vertical plate is fixedly installed to the top of the support base; a second cylinder is fixedly connected to the top of the vertical plate; a pressing frame is fixedly connected to the output end of the second cylinder; a pressing ring is provided at the bottom of the pressing frame; the pressing ring and the punch assembly are correspondingly arranged, and the inner wall is provided with multiple grooves corresponding to the mounting holes; through the cooperation of the pressing frame and the pressing ring, the pressing frame can quickly press the punch assembly as the vertical plate rises and falls, avoiding the obstruction of the supporting block to the pressing ring, and improving the convenience of the device when pressing the punch assembly.

[0009] Preferably, a plurality of positioning rods are fixedly connected to the bottom of the extrusion frame; a plurality of positioning cylinders are fixedly connected to the top of the slider; the positioning rods and positioning cylinders are in sliding fit; through the cooperation of the positioning rods and positioning cylinders, when the extrusion frame moves closer to the stamping assembly, the positioning rods will move closer to the positioning cylinders and enter the interior of the positioning cylinders to position the downward movement of the extrusion frame, thereby improving the accuracy of the position when the extrusion ring presses the stamping assembly.

[0010] Preferably, a laser generator is fixedly installed on the inner wall of the extrusion frame; a target is fixedly installed on the top of the sleeve; through the cooperation of the laser generator and the target, before the extrusion frame presses the punching sheet assembly, the laser generator will be powered on and emit a laser beam, which will reach the surface of the target and be displayed as dots, so that the staff can judge the concentricity between the extrusion ring and the sleeve. The surface of the target may be provided with a scale groove to judge the error situation when the device is inspected later.

[0011] Preferably, the top of the slider is provided with a top plate; multiple connecting rods are fixedly connected to the bottom of the top plate; the connecting rods and the slider are through-connected and slidably fitted; a spring is fixedly installed between the bottom of the connecting rod and the inner wall of the slider; multiple cavities corresponding to the mounting holes are opened on the inner wall of the top plate; when the stamping assembly is placed on the surface of the top plate, it will be at the top of the top plate. When the pressing assembly presses the stamping assembly, it will cause the stamping assembly to squeeze the top plate and drive the connecting rod to slide along the slider. The spring will also be in a compressed state. After the pressing is completed, the stamping assembly will be reset with the top plate under the action of the spring force and rise from the top of the stamping assembly. At this time, since the size of the stamping assembly is larger than the size of the top plate, more operating area for lifting and unloading the stamping assembly can be provided, which facilitates the removal of the stamping assembly by the device.

[0012] Preferably, the top of the slider is provided with multiple positioning grooves; the positioning grooves and positioning holes are correspondingly set; by setting positioning grooves, after the stamping assembly is placed on the top of the top plate, the accuracy of the stamping assembly's position can be further improved by observing the overlap between the positioning grooves and positioning holes.

[0013] The advantages of this utility model are:

[0014] 1. The automatic pressing and positioning device for punching sheets described in this utility model, through the cooperation of connecting rods and support blocks, enables punching sheet groups of different sizes to be centered under the internal support of multiple support blocks when placed, thereby realizing the positioning of the punching sheet groups before pressing and improving the accuracy of the pressing assembly when pressing the punching sheet groups.

[0015] 2. The automatic pressing and positioning device for punching sheets described in this utility model, through the cooperation of the pressing frame and the pressing ring, allows the pressing frame to quickly press the punching sheet assembly as the vertical plate rises and falls, avoiding the obstruction of the supporting block on the pressing ring and improving the convenience of the device in pressing the punching sheet assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the slider structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the sleeve structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the nut structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the extrusion frame in this utility model.

[0022] In the diagram: 1. Support base; 12. First cylinder; 13. Slider; 14. Motor; 15. First bevel gear; 16. Second bevel gear; 17. Screw; 18. Sleeve; 19. Nut; 110. Connecting rod; 111. Support block; 112. Vertical rod; 113. Punching assembly; 114. Positioning hole; 115. Mounting hole; 2. Vertical plate; 22. Second cylinder; 23. Extrusion frame; 24. Extrusion ring; 3. Positioning rod; 32. Positioning cylinder; 4. Laser generator; 42. Target; 5. Top plate; 52. Connecting rod; 53. Spring; 6. Positioning groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1 to 5As shown in the embodiment of this utility model, an automatic pressing and positioning device for sheet metal stamping includes a support base 1. A first cylinder 12 is fixedly connected to the top of the support base 1. A slider 13 is fixedly connected to the output end of the first cylinder 12. A motor 14 is fixedly connected to one side of the slider 13. A first bevel gear 15 is fixedly connected to the output end of the motor 14. The first bevel gear 15 is located inside the slider 13 and is rotatably connected to the slider 13. A second bevel gear 16 is rotatably connected inside the slider 13, and the second bevel gear 16 and the first bevel gear 15 are meshed. A screw 17 is fixedly connected to the top of the second bevel gear 16. A sleeve 18 is fixedly connected to the top of the slider 13. The screw 17 and the sleeve 18 are rotatably connected. A nut 19 is threaded into the middle; a vertical rod 112 is fixed to the top of the inner wall of the sleeve 18, and the vertical rod 112 and the nut 19 are slidably connected; multiple connecting rods 110 are rotatably connected to the outer wall of the nut 19; a support block 111 is rotatably connected to the end of the connecting rod 110; the support block 111 and the sleeve 18 are slidably connected, and the end of the support block 111 is chamfered; a punch assembly 113 is provided on the top of the slider 13; multiple mounting holes 115 are opened on the inner wall of the punch assembly 113, and multiple positioning holes 114 are opened on the outer wall of the punch assembly 113; a press-fitting assembly is provided on the top of the support base 1; during operation, the punch assembly 113 can be fed to the top of the slider 13 by a robot or manually. The part is fitted onto the outside of the sleeve 18. During the process, the mounting hole 115 can be roughly aligned with the support block 111. After placement, the motor 14 can be started to drive the first bevel gear 15 to rotate. The first bevel gear 15 will mesh with the second bevel gear 16, so that the second bevel gear 16 and the screw 17 rotate together. The screw 17 will drive the nut 19 to move up and down along the screw 17 through thread transmission. The upright 112 will provide a guiding and limiting function for the nut 19. When the nut 19 moves, it can cause the connecting rod 110 to rotate. The angle of the connecting rod 110 will change and apply a force to the support block 111, so that the support block 111 can slide along the sleeve 18. Since the end of the support block 111 is chamfered, the support block 111 and the mounting hole 111 are aligned. When there is a slight deviation between 5, the support block 111 can be stably inserted into the mounting hole 115 under the guidance of the inclined plane. The stamping assembly 113 will be in a concentric posture with the sleeve 18 under the multi-directional extrusion of the support block 111, realizing the positioning of the stamping assembly 113 by the device. Then, the slider 13 can be driven to move the stamping assembly 113 on its top towards the pressing assembly by starting the first cylinder 12, until the pressing assembly presses the stamping assembly 113. Through the cooperation of the connecting rod 110 and the support block 111, the stamping assemblies 113 of different sizes can be centered under the internal support of multiple support blocks 111 when placed, realizing the positioning of the stamping assembly 113 before pressing, and improving the accuracy of the pressing assembly when pressing the stamping assembly 113.

[0026] Please see Figure 5As shown, the pressing assembly includes a vertical plate 2; the vertical plate 2 is fixedly installed on the top of the support base 1; a second cylinder 22 is fixedly connected to the top of the vertical plate 2; an extrusion frame 23 is fixedly connected to the output end of the second cylinder 22; an extrusion ring 24 is provided at the bottom of the extrusion frame 23; the extrusion ring 24 and the stamping assembly 113 are correspondingly arranged, and the inner wall is provided with multiple grooves corresponding to the mounting holes 115; after the stamping assembly 113 is moved to the bottom of the vertical plate 2 by the first cylinder 12, it can be pressed by the second cylinder 12. The cylinder 22 controls the lifting and lowering of the extrusion frame 23, causing the extrusion frame 23 to move closer to the stamping assembly 113 with the extrusion ring 24. During the process, the extrusion ring 24 passes through the groove and through the support block 111 to extrude and press the stamping assembly 113. Through the cooperation of the extrusion frame 23 and the extrusion ring 24, the extrusion frame 23 can quickly press the stamping assembly 113 with the lifting and lowering action of the vertical plate 2, avoiding the obstruction of the support block 111 to the extrusion ring 24 and improving the convenience of the device when pressing the stamping assembly 113.

[0027] Please see Figure 5 As shown, multiple positioning rods 3 are fixedly connected to the bottom of the extrusion frame 23; multiple positioning cylinders 32 are fixedly connected to the top of the slider 13; the positioning rods 3 and the positioning cylinders 32 are in sliding fit; through the cooperation of the positioning rods 3 and the positioning cylinders 32, when the extrusion frame 23 moves closer to the punch assembly 113, the positioning rods 3 and the positioning cylinders 32 will move closer to each other and enter the interior of the positioning cylinders 32 to position the downward movement of the extrusion frame 23, thereby improving the accuracy of the position of the extrusion ring 24 when pressing the punch assembly 113.

[0028] Please see Figure 3 and Figure 5 As shown, a laser generator 4 is fixedly installed on the inner wall of the extrusion frame 23; a target 42 is fixedly installed on the top of the sleeve 18; through the cooperation of the laser generator 4 and the target 42, before the extrusion frame 23 presses the punching assembly 113, the laser generator 4 will be powered on and emit a laser beam, which will reach the surface of the target 42 and be displayed as dots, so that the staff can judge the concentricity between the extrusion ring 24 and the sleeve 18. The surface of the target 42 may be provided with a scale groove, so as to judge the error situation when the device is inspected later.

[0029] Please see Figure 4As shown, the top of the slider 13 is provided with a top plate 5; multiple connecting rods 52 are fixedly connected to the bottom of the top plate 5; the connecting rods 52 and the slider 13 are through-connected and slidably fitted; a spring 53 is fixedly installed between the bottom of the connecting rod 52 and the inner wall of the slider 13; multiple cavities corresponding to the mounting holes 115 are opened on the inner wall of the top plate 5; when the punch assembly 113 is placed on the surface of the top plate 5, it will be at the top of the top plate 5. When the pressing assembly presses the punch assembly 113, it will cause the punch assembly 113 to squeeze the top plate 5 and drive the connecting rods 52 to slide along the slider 13. The spring 53 will also be in a compressed state. After the pressing is completed, the punch assembly 113 will be reset and lifted from the top of the punch assembly 113 under the elastic force of the spring 53. At this time, since the size of the punch assembly 113 is larger than the size of the top plate 5, more operating area for lifting and unloading the punch assembly 113 can be provided, which facilitates the removal of the punch assembly 113 by the device.

[0030] Please see Figure 2 and Figure 3 As shown, the top of the slider 13 is provided with multiple positioning grooves 6; the positioning grooves 6 and the positioning holes 114 are correspondingly set; by setting the positioning grooves 6, after the stamping assembly 113 is placed on the top of the top plate 5, the accuracy of the position of the stamping assembly 113 when it is placed can be further improved by observing the overlap between the positioning grooves 6 and the positioning holes 114.

[0031] Working principle: The stamping assembly 113 is fed to the top of the slider 13 by a robot or manually and placed on the outside of the sleeve 18. During the process, the mounting hole 115 can be roughly aligned with the support block 111. After placement, the motor 14 can be started to drive the first bevel gear 15 to rotate. The first bevel gear 15 will mesh with the second bevel gear 16, so that the second bevel gear 16 and the screw 17 rotate together. The screw 17 will drive the nut 19 to move up and down along the screw 17 through thread transmission. The upright rod 112 will provide a guiding and limiting function for the nut 19. When the nut 19 moves, it can cause the connecting rod 110 to rotate. The angle of the connecting rod 110 will change and apply a force to the support block 111, so that the support block 111 can move along the sleeve 18. 8. Sliding is performed. Since the end of the support block 111 is chamfered, when there is a slight deviation between the support block 111 and the mounting hole 115, the inclined plane can guide the support block 111 to stably enter the mounting hole 115. The stamping assembly 113 will be in a concentric posture with the sleeve 18 under the multi-directional extrusion of the support block 111, realizing the positioning of the stamping assembly 113 by the device. Then, the first cylinder 12 can be activated to drive the slider 13 to move the stamping assembly 113 on its top closer to the pressing assembly until the pressing assembly presses the stamping assembly 113. After the stamping assembly 113 is moved to the bottom of the vertical plate 2 by the first cylinder 12, the second cylinder 22 can control the lifting and lowering of the extrusion frame 23, so that the extrusion frame 23 moves... As the extrusion ring 24 approaches the stamping assembly 113, it passes through the groove into the support block 111 to press and compress the stamping assembly 113. Through the cooperation of the positioning rod 3 and the positioning cylinder 32, when the extrusion frame 23 approaches the stamping assembly 113, the positioning rod 3 approaches and enters the interior of the positioning cylinder 32 to position the downward movement of the extrusion frame 23, improving the accuracy of the position when the extrusion ring 24 presses against the stamping assembly 113. Through the cooperation of the laser generator 4 and the target 42, before the extrusion frame 23 presses against the stamping assembly 113, the laser generator 4 is powered on and emits a laser beam. The laser beam reaches the surface of the target 42 and appears as dots, allowing operators to judge the extrusion process. The concentric state between ring 24 and sleeve 18, the target 42 surface can be provided with a scale groove, so as to judge the error when the device is inspected later; when the punch assembly 113 is placed on the surface of the top plate 5, it will be at the top of the top plate 5. When the pressing assembly presses the punch assembly 113, it will cause the punch assembly 113 to squeeze the top plate 5 and drive the connecting rod 52 to slide along the slider 13. The spring 53 will also be in a compressed state. After the pressing is completed, the punch assembly 113 will be reset with the top plate 5 under the elastic force of the spring 53 and rise from the top of the punch assembly 113. At this time, since the size of the punch assembly 113 is larger than the size of the top plate 5, more operating area for lifting and unloading the punch assembly 113 can be provided, which is convenient for the device to remove the punch assembly 113;By setting the positioning groove 6, after the lamination assembly 113 is placed on top of the top plate 5, the accuracy of the placement of the lamination assembly 113 can be further improved by observing the overlap between the positioning groove 6 and the positioning hole 114.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic pressing and positioning device for sheet metal stamping, comprising a support base (1), characterized in that: A first cylinder (12) is fixedly connected to the top of the support base (1); a slider (13) is fixedly connected to the output end of the first cylinder (12); a motor (14) is fixedly connected to one side of the slider (13); a first bevel gear (15) is fixedly connected to the output end of the motor (14), the first bevel gear (15) is located inside the slider (13) and is rotatably connected to the slider (13); a second bevel gear (16) is rotatably connected inside the slider (13), and the second bevel gear (16) and the first bevel gear (15) are meshed; a screw (17) is fixedly connected to the top of the second bevel gear (16); a sleeve (18) is fixedly connected to the top of the slider (13); the screw (17) and the sleeve (18) are rotatably connected; the screw (17) A nut (19) is threaded in the middle; a vertical rod (112) is fixed to the top of the inner wall of the sleeve (18), and the vertical rod (112) and the nut (19) are connected through and slidingly fitted; multiple connecting rods (110) are rotatably connected to the outer wall of the nut (19); a support block (111) is rotatably connected to the end of the connecting rod (110); the support block (111) and the sleeve (18) are connected through and slidingly fitted, and the end of the support block (111) is chamfered; a punch assembly (113) is provided on the top of the slider (13); multiple mounting holes (115) are opened on the inner wall of the punch assembly (113), and multiple positioning holes (114) are opened on the outer wall of the punch assembly (113); a press-fitting assembly is provided on the top of the support base (1).

2. The automatic pressing and positioning device for sheet metal stamping according to claim 1, characterized in that: The pressing assembly includes a vertical plate (2); the vertical plate (2) is fixedly installed on the top of the support base (1); a second cylinder (22) is fixedly connected to the top of the vertical plate (2); an extrusion frame (23) is fixedly connected to the output end of the second cylinder (22); an extrusion ring (24) is provided at the bottom of the extrusion frame (23); the extrusion ring (24) and the punch assembly (113) are correspondingly arranged, and the inner wall is provided with multiple grooves corresponding to the mounting holes (115).

3. The automatic pressing and positioning device for sheet metal stamping according to claim 2, characterized in that: The bottom of the extrusion frame (23) is fixed with multiple positioning rods (3); the top of the slider (13) is fixed with multiple positioning cylinders (32); the positioning rods (3) and the positioning cylinders (32) are in sliding fit.

4. The automatic pressing and positioning device for sheet metal stamping according to claim 3, characterized in that: A laser generator (4) is fixedly installed on the inner wall of the extrusion frame (23); a target (42) is fixedly installed on the top of the sleeve (18).

5. The automatic pressing and positioning device for sheet metal stamping according to claim 4, characterized in that: The top of the slider (13) is provided with a top plate (5); a plurality of connecting rods (52) are fixedly connected to the bottom of the top plate (5); the connecting rods (52) and the slider (13) are connected through and are in sliding fit; a spring (53) is fixedly installed between the bottom of the connecting rod (52) and the inner wall of the slider (13); a plurality of cavities corresponding to the mounting holes (115) are opened on the inner wall of the top plate (5).

6. The automatic pressing and positioning device for sheet metal stamping according to claim 5, characterized in that: The top of the slider (13) is provided with multiple positioning grooves (6); the positioning grooves (6) and positioning holes (114) are provided in a corresponding manner.

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