Rapid stamping structure for metal teaching appliance

Abstract

The utility model relates to a rapid stamping structure for metal teaching aids, which comprises a mounting plate I, a mounting plate II and a mounting plate III which are arranged in parallel from top to bottom, stamping dies are fixedly connected to the lower end of the mounting plate I, the upper and lower ends of the mounting plate II and the upper end of the mounting plate III, and a limiting mechanism is arranged at the upper end of a supporting plate. The limiting mechanism comprises a driving block fixed to the upper end of the mounting plate I and provided with a notch groove I, a limiting block fixed to the lower end of the mounting plate II and provided with a notch groove II, and a linkage rod with the vertical layer projection of an F-shaped structure and rotationally connected with the mounting plate II through a positioning piece. The transmission relation between the mounting plate I and the mounting plate II can be changed by changing the matching condition of the horizontal section of the linkage rod, the notch groove I and the notch groove II through the structure of the linkage rod, so that the machining time can be shortened and the machining efficiency can be improved through single-station coincidence machining.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment, in particular to a rapid stamping structure for metal teaching aids. Background Art

[0002] Stamping is a forming process that applies external forces to plates, strips, tubes, profiles, etc. by a press and a die, causing them to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) with the required shapes and sizes.

[0003] Currently, most teaching aids are made of wood or iron structures. Among them, in order to balance cost and weight, the iron structure is generally a hollow stamped part.

[0004] In the process of stamping and forming a plate by the prior art device, a single-station and step-by-step processing method is often used. However, in order to ensure that the overall thickness of the teaching aid meets the actual use requirements and is convenient for users to hold, the plate generally needs to be bent multiple times. Moreover, in order to meet the teaching requirements, the teaching aid generally needs to have its own unique structural features, which makes its stamping process must be completed multiple times to avoid springback.

[0005] Therefore, in order to adapt to the multiple processing processes, reduce the processing time, and improve the processing efficiency, we believe that a rapid stamping structure capable of single-station composite processing is needed. Summary of the Invention

[0006] Aiming at the deficiencies in the prior art, the utility model provides a rapid stamping structure for metal teaching aids, which has the advantages of reducing the processing time and improving the processing efficiency, and solves the disadvantages of long processing time and low processing efficiency of the prior art device in the multi-step stamping process.

[0007] In order to achieve the above object, the utility model adopts the following technical solutions:

[0008] A rapid stamping structure for a metal teaching tool, comprising a stamping crankshaft. A follower is sleeved outside the stamping crankshaft. A follower rod is fixedly connected to the lower end of the follower. The lower end of the stamping crankshaft is provided with mounting plate I, mounting plate II, and mounting plate III in parallel from top to bottom. Among them, the upper end of mounting plate I is rotatably connected to the follower rod. The lower end of mounting plate III is fixedly connected to a support plate. The lower end of mounting plate I, the upper and lower ends of mounting plate II, and the upper end of mounting plate III are fixedly connected with stamping dies. And a limiting mechanism is arranged at the upper end of the support plate. The limiting mechanism includes a driving block fixed to the upper end of mounting plate I. A notch groove I is vertically and longitudinally opened at one end of the driving block away from the follower rod. The limiting mechanism includes a linkage rod whose vertical plane projection is an F-shaped structure. The linkage rod is rotatably connected to mounting plate II through a positioning member. And the positioning member is located between the two horizontal sections of the linkage rod. The limiting mechanism includes a limiting block fixed to the lower end of mounting plate II. A notch groove II is vertically and longitudinally opened at one end of the limiting block away from mounting plate II. When mounting plate I is at the highest point of its movement stroke, the upper horizontal section of the linkage rod is on the same horizontal plane as notch groove I. When mounting plate I is at the lowest point of its stroke and the stamping die at the lower end of mounting plate I abuts against the stamping die at the upper end of mounting plate II, the lower horizontal section of the linkage rod is on the same horizontal plane as notch groove II.

[0009] Preferably, a pivot is rotatably connected to the positioning member. The pivot is key-connected to the linkage rod. And a follower is key-connected to one axial end of the pivot. A follower rod is fixedly connected to the follower. The number of the limiting mechanisms is two. The two limiting mechanisms are arranged on the upper end of the support plate left and right. And the follower rods in the two limiting mechanisms are symmetrically arranged up and down with the central axis of the pivot as the symmetry line. A pull rod I is sleeved outside the follower rods in the two limiting mechanisms.

[0010] Preferably, a pull rod II is fixedly connected to the outer side of the upper end of the linkage rod in each limiting mechanism away from mounting plate I. A tension spring is arranged outside the two pull rod II. The two axial ends of the tension spring are drivingly connected to the two pull rod II.

[0011] Preferably, a cam is arranged on the side of the linkage rod away from mounting plate III. The cam is fixedly connected to the support plate. And a grip is fixedly connected to the side of the cam away from the linkage rod.

[0012] Preferably, when the linkage rod is inserted into notch groove II, the included angle between the far ends of the two linkage rods and the horizontal plane is less than 90 degrees. When the linkage rod is inserted into notch groove I, the included angle between the far ends of the two linkage rods and the horizontal plane is equal to 90 degrees.

[0013] Preferably, through holes are penetrated on mounting plate I, mounting plate II, and mounting plate III. And the through holes on mounting plate I, mounting plate II, and mounting plate III correspond one by one. A limiting rod is inserted into the through holes on mounting plate I, mounting plate II, and mounting plate III. The limiting rod is fixedly connected to the support plate.

[0014] Preferably, a compression spring is sleeved on the outer side of the limiting rod in the up-and-down axial direction. The two axial ends of the compression spring are respectively abutted against the second mounting plate and the third mounting plate. A limiting ring is sleeved on the outer side of the limiting rod. When the first mounting plate is at the lowest point of its stroke and the stamping die at the lower end of the first mounting plate abuts against the stamping die at the upper end of the second mounting plate, the upper end face of the second mounting plate abuts against the limiting ring.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the cooperation of the linkage rod with the driving block and the limiting block, by changing the transmission relationship between the second mounting plate and the first mounting plate, the present utility model can realize the composite processing process of a single station, which can reduce the material transfer time and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a front view of the present utility model;

[0019] Figure 3 is a schematic diagram of the connection between the stamping die and the first mounting plate of the present utility model;

[0020] Figure 4 is a schematic diagram of the connection between the stamping die and the second mounting plate of the present utility model;

[0021] Figure 5 is a schematic diagram of the cooperation between the tension spring and the second pull rod of the present utility model;

[0022] Figure 6 is a schematic diagram of the positional relationship between the limiting block and the positioning member of the present utility model.

[0023] In the figure: 1, follower; 2, stamping crankshaft; 3, follower rod; 4, limiting rod; 5, first mounting plate; 6, second mounting plate; 7, stamping die; 8, support plate; 9, limiting mechanism; 901, follower; 902, second pull rod; 903, pivot; 904, linkage rod; 905, cam; 906, grip; 907, tension spring; 908, driving block; 909, positioning member; 910, limiting block; 911, notch groove I; 912, notch groove II; 913, follower rod; 10, compression spring; 11, third mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0026] Please refer to Figure 1-6 , a rapid stamping structure for metal teaching aids, which is consistent with the prior art device. It includes a corresponding driving structure. The driving mechanism consists of a stamping crankshaft 2, a follower 1, and a follower rod 3. In practice, the follower 1 is sleeved outside the crankshaft, and the follower rod 3 is fixedly connected to the follower 1. At this time, only a corresponding driving component needs to be added to one axial end of the crankshaft. By rotating the crankshaft, the up and down movement of the follower rod 3 can be realized by using the structural characteristics of the crankshaft itself.

[0027] Similarly, an installation plate I 5 is provided at the lower end of the stamping crankshaft 2 of the present device, and the rotational connection between the installation plate I 5 and the follower rod 3 is restricted. Then, the follower rod 3 can drive the installation plate I 5 to move up and down.

[0028] At this time, only a corresponding through hole needs to be formed through the installation plate I 5, and a limiting rod 4 is inserted into the through hole. When the limiting rod 4 cannot undergo horizontal displacement, the movement trajectory of the installation plate I 5 can be restricted by using the limiting rod 4 to ensure that the limiting rod 4 can only perform up and down linear motion.

[0029] Different from the prior art device, an installation plate II 6 and an installation plate III 11 are arranged in parallel from top to bottom at the lower end of the installation plate I 5 of the present device. Moreover, a stamping die 7 is fixedly connected to the lower end of the installation plate I 5, the upper and lower ends of the installation plate II 6, and the upper end of the installation plate III 11. Then, the present device can realize the multi-processing process of a single station by controlling the workpiece to be processed.

[0030] Specifically, a support plate 8 is fixedly connected to the lower end face of the installation plate III 11, the limiting rod 4 is fixedly connected to the support plate 8, and through holes are also formed through the installation plate II 6 and the installation plate III 11, and the limiting rod 4 is inserted into the corresponding through holes.

[0031] It should be noted that in practice, when the height of the mounting plate II 6 cannot be changed by the user, by moving the mounting plate I 5 up and down, the distance between the stamping die 7 at the lower end of the mounting plate I 5 and the stamping die 7 at the upper end of the mounting plate II 6 can be changed to stamp and shape the workpiece to be processed placed between the mounting plate I 5 and the mounting plate II 6.

[0032] Correspondingly, in practice, if the mounting plate I 5 and the mounting plate II 6 move synchronously, then by moving the mounting plate I 5 up and down, the mounting plate II 6 can be driven to move up and down linearly synchronously. By changing the distance between the stamping die 7 at the lower end of the mounting plate II 6 and the stamping die 7 at the upper end of the mounting plate III 11, the workpiece to be processed placed between the mounting plate II 6 and the mounting plate III 11 can be stamped and shaped.

[0033] Specifically, in order to control the movement state of the mounting plate II 6, a limiting mechanism 9 is provided at the upper end of the support plate 8. The limiting mechanism 9 includes a linkage rod 904 whose vertical plane projection is an F-shaped structure.

[0034] At the same time, a limiting block 910 is fixedly connected to the lower end of the mounting plate II 6. Moreover, a notch groove II 912 is formed through the front and rear ends of the limiting block 910 away from the mounting plate II 6. Therefore, when the linkage rod 904 is rotatably connected to the mounting plate II 6, that is, the height of the linkage rod 904 relative to the mounting plate II 6 cannot change, by controlling the position of the lower horizontal section of the linkage rod 904, it can be made to sink into the notch groove during rotation. At this time, the presence of the limiting block 910 can restrict the rotation angle of the linkage rod 904.

[0035] It should be emphasized that the linkage rod 904 is rotatably connected to the mounting plate II 6 through a positioning member 909, and the positioning member 909 is rotatably connected to the upper end face of the mounting plate. Therefore, taking the left linkage rod 904 as an example, the positional relationship between the linkage rod 904 and the mounting plate II 6 determines that the left linkage rod 904 can only rotate counterclockwise so that the lower horizontal section of the left linkage rod 904 can sink into the notch groove II 912.

[0036] Therefore, a cam 905 is provided on the side of the lower end of the linkage rod 904 away from the mounting plate II 6. The cam 905 is fixedly connected to the support plate 8, that is, the relative position of the cam 905 with respect to the support plate 8 cannot be changed. The device controls the rotation of the linkage rod 904 by rotating the cam 905 to change the contact point between the cam 905 and the lower end of the linkage rod 904.

[0037] Therefore, when the horizontal section on the lower side of the linkage rod 904 is immersed inside the notch groove II 912, and the linkage rod 904 and the mounting plate II 6 want to move downward together, the inclination angle of the linkage rod 904 itself determines that the linkage rod 904 will inevitably exert a horizontal and a vertical thrust on the cam 905. At this time, the cam 905 can be used to restrain the linkage rod 904, that is, the mounting plate II 6 cannot move downward, realizing the height fixation of the mounting plate II 6.

[0038] Furthermore, a grip 906 is fixedly connected to one side of the cam 905 of the present device. Through the grip 906, it is convenient for the user to control the cam 905 and prevent the cam 905 from rotating additionally under a large downward pressure.

[0039] Specifically, in order to realize the synchronous movement of the mounting plate I 5 and the mounting plate II 6, a driving block 908 is fixedly connected to the upper end of the mounting plate I 5. A notch groove I 911 is formed through the driving block 908 in the front and rear directions away from one end of the driven rod 3. At this time, by restricting that when the mounting plate I 5 is at the highest point of its movement stroke, the horizontal section on the upper side of the linkage rod 904 and the notch groove I 911 are on the same horizontal plane, it can be ensured that during the clockwise rotation of the left linkage rod 904, the horizontal section on its lower side first disengages from the notch groove II 912, and then the horizontal section on its upper side is immersed inside the notch groove I 911. At this time, by utilizing the characteristic that the linkage rod 904 cannot cause a height change of the mounting plate I 5, only by restricting that the linkage rod 904 is not subject to additional resistance at this time can it be ensured that the mounting plate I 5 can drive the mounting plate II 6 to move downward synchronously during the downward movement.

[0040] Furthermore, the number of the constraint and limit mechanisms 9 of the present device is two. The two limit mechanisms 9 are arranged on the upper end of the support plate 8 from left to right. At this time, the two limit mechanisms 9 can be used to prevent the mounting plate I 5 and the mounting plate II 6 from being unbalanced due to unilateral force.

[0041] Therefore, the present device restricts that when the linkage rod 904 is immersed inside the notch groove II 912, the included angle between the far ends of the two linkage rods 904 and the horizontal plane is less than ninety degrees. At this time, the cam 905 can form a position constraint on the linkage rod 904. When the linkage rod 904 is immersed inside the notch groove I 911, the included angle between the far ends of the two linkage rods 904 and the horizontal plane is equal to ninety degrees. At this time, the cam 905 does not form a position constraint on the linkage rod 904.

[0042] Specifically, a pivot 903 is rotatably connected to the positioning member 909 of the present device. The pivot 903 is key-connected to the linkage rod 904, thus realizing the rotational connection between the linkage rod 904 and the positioning member 909.

[0043] At the same time, one axial end of each pivot 903 is key-connected with a follower 901, and a follower rod 913 is fixedly connected to the follower 901.

[0044] At this time, it is only necessary to constrain the follower rods 913 in the two limit mechanisms 9 to be symmetrically arranged up and down with the central axis of the pivot 903 as the symmetry line. The pull rod Ⅰ mounted on the outside of the two limit rods 4 can be used to enable the two linkage rods 904 to rotate synchronously in opposite directions, and at the same time realize the change of the matching state of the linkage rod 904 and the notch groove Ⅰ911 and the notch groove Ⅱ912.

[0045] Furthermore, in the device, a pull rod II 902 is fixedly connected to the upper end of the linkage rod 904 in the limiting mechanism 9, away from the side of the mounting plate I5, and a tension spring 907 is commonly provided on the outer sides of the two pull rods II 902. The two axial ends of the tension spring 907 are transmission-connected to the two pull rods II 902. The tension spring 907 is utilized to make the upper ends of the two linkage rods 904 tend to move toward each other. This, in conjunction with the cam 905, can more conveniently control the rotation amplitude of a single linkage rod 904.

[0046] Furthermore, in order to facilitate the control of the position of the mounting plate Ⅱ6 and ensure that the lower horizontal section of the linkage rod 904 can directly enter the notch groove during the rotation, an upper and lower axial compression spring 10 is sleeved on the outer side of the limit rod 4 of the device, and the two axial ends of the constraint compression spring 10 are respectively in contact with the mounting plate Ⅱ6 and the mounting plate Ⅲ11, so that the compression spring 10 can be used to provide an upward driving force for the mounting plate Ⅱ6.

[0047] At the same time, a limiting ring is sleeved on the outer side of the limiting rod 4. When the mounting plate I5 is located at the lowest point of its stroke and the stamping die 7 at the lower end of the mounting plate I5 abuts against the stamping die 7 at the upper end of the mounting plate II6, the upper end surface of the mounting plate II6 abuts against the limiting ring. In this way, the limiting ring can be used to restrict the maximum height of the mounting plate II6. In combination with the compression spring 10, the mounting plate II6 can be at a specific height under normal circumstances.

[0048] In actual use, the utility model:

[0049] First, the user rotates the cam 905 so that the lower ends of the linkage rods 904 on both sides can move toward each other. At this time, the angle between the two ends of the linkage rods 904 away from the horizontal plane is less than 90 degrees, and the linkage rods 904 abut against the cam 905.

[0050] Then, the user places the part to be processed between the mounting plate Ⅰ5 and the mounting plate Ⅱ6, and rotates the stamping crankshaft 2 to drive the mounting plate Ⅰ5 to move up and down linearly relative to the mounting plate Ⅱ6, thus completing the first stamping and shaping of the part to be processed;

[0051] Afterwards, the user takes out the part to be processed from between the mounting plate I5 and the mounting plate II6, and places the part to be processed between the mounting plate II6 and the mounting plate III11;

[0052] Finally, the user rotates the cam 905. Under the action of the tension spring 907, the upper ends of the two linkage rods 904 move towards each other. At this time, the horizontal section on the upper side of the linkage rod 904 sinks into the notch groove I 911. Then, the rotary stamping crankshaft 2 is rotated, and the mounting plate I 5 and the mounting plate II 6 move up and down linearly towards the mounting plate III 11 synchronously, completing the secondary stamping and shaping of the workpiece to be processed.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal teaching tool rapid stamping structure, characterized in that: It comprises a stamped crankshaft (2), the outer sleeve of the stamped crankshaft (2) is provided with a driven member (1), and the lower end of the driven member (1) is fixedly connected to a driven rod (3); The lower end of the stamping crankshaft (2) is provided with a mounting plate I (5), a mounting plate II (6), and a mounting plate III (11) in parallel from top to bottom, wherein the upper end of the mounting plate I (5) is rotatably connected to the driven rod (3), and the lower end of the mounting plate III (11) is fixedly connected to a support plate (8); The lower end of the mounting plate I (5), the upper and lower ends of the mounting plate II (6), and the upper end of the mounting plate III (11) are fixedly connected with a stamping die (7), and a limiting mechanism (9) is provided at the upper end of the support plate (8); The limiting mechanism (9) comprises a driving block (908) fixed to the upper end of the mounting plate I (5), and a notch groove I (911) is formed through the front and rear ends of the driving block (908) away from the driven rod (3); The limiting mechanism (9) comprises a linkage rod (904) having an F-shaped structure in vertical plane projection, the linkage rod (904) being rotatably connected to the mounting plate II (6) via a positioning member (909), and the positioning member (909) is located between two horizontal sections of the linkage rod (904); The limiting mechanism (9) comprises a limiting block (910) fixed to the lower end of the mounting plate II (6), and a notch groove II (912) is formed through the limiting block (910) at one end away from the mounting plate II (6); When the mounting plate I (5) is at the highest point of its movement stroke, the upper horizontal section of the linkage rod (904) and the notch groove I (911) are in the same horizontal plane; when the mounting plate I (5) is at the lowest point of its movement stroke and the stamping die (7) at the lower end of the mounting plate I (5) abuts against the stamping die (7) at the upper end of the mounting plate II (6), the lower horizontal section of the linkage rod (904) and the notch groove II (912) are in the same horizontal plane.

2. A metal teaching tool rapid stamping structure according to claim 1, characterized in that: The positioning member (909) is rotatably connected to a pivot (903), the pivot (903) is key-connected to a linkage rod (904), and one axial end of the pivot (903) is key-connected to a follower (901), and a follower rod (913) is fixedly connected to the follower (901); There are two limit mechanisms (9), which are arranged on the left and right upper ends of the support plate (8), and the follower rods (913) in the two limit mechanisms (9) are symmetrically arranged up and down with the central axis of the pivot (903) as the symmetry line, and a pull rod I is commonly sleeved on the outer sides of the follower rods (913) in the two limit mechanisms (9).

3. A metal teaching tool rapid stamping structure according to claim 2, characterized in that: The upper end of the linkage rod (904) in each of the limiting mechanisms (9) is fixedly connected to a pull rod II (902) away from the side of the mounting plate I (5), and a tension spring (907) is commonly provided on the outer sides of the two pull rods II (902), and the two axial ends of the tension spring (907) are transmission-connected to the two pull rods II (902).

4. A metal teaching tool rapid stamping structure according to claim 2, characterized in that: A cam (905) is provided on the side of the linkage rod (904) away from the mounting plate III (11), the cam (905) is fixedly connected to the support plate (8), and a handle (906) is fixedly connected to the side of the cam (905) away from the linkage rod (904).

5. A metal teaching tool rapid stamping structure according to claim 4, characterized in that: When the linkage rod (904) is immersed in the notch groove II (912), the angle between the two linkage rods (904) away from the end and the horizontal plane is less than ninety degrees; when the linkage rod (904) is immersed in the notch groove I (911), the angle between the two linkage rods (904) away from the end and the horizontal plane is equal to ninety degrees.

6. The metal teaching tool rapid stamping structure according to claim 1, characterized in that: The mounting plate I (5) and the mounting plate II (6) and the mounting plate III (11) are all provided with through holes, and the through holes on the mounting plate I (5) and the mounting plate II (6) and the mounting plate III (11) correspond to each other one by one. A limiting rod (4) is commonly inserted into the through holes on the mounting plate I (5), the mounting plate II (6) and the mounting plate III (11), and the limiting rod (4) is fixedly connected to the support plate (8).

7. A metal teaching tool rapid stamping structure according to claim 6, characterized in that: The outer side of the limit rod (4) is sleeved with an upper and lower axial compression spring (10), and the two axial ends of the compression spring (10) are respectively in contact with the mounting plate II (6) and the mounting plate III (11); A limiting ring is sleeved on the outer side of the limiting rod (4). When the mounting plate I (5) is located at the lowest point of its travel and the stamping die (7) at the lower end of the mounting plate I (5) abuts against the stamping die (7) at the upper end of the mounting plate II (6), the upper end surface of the mounting plate II (6) abuts against the limiting ring.

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