Tablet rotating mechanism and stamping die

Abstract

The material sheet rotating mechanism comprises a base, a rotary air cylinder and a rotating seat, the rotating seat is used for assembling material sheets, the rotary air cylinder is fixedly arranged on the base, the rotating seat is arranged on a table top of the base, the central axis of the rotating seat and the central axis of the rotary air cylinder coincide so that the rotating seat and the rotary air cylinder can be right opposite to each other, and the rotary air cylinder is arranged on the base. The rotary cylinder extends out of an output shaft along the central axis, penetrates through the base and is directly connected with the rotary seat, so that the rotary seat is driven to rotate through the rotary cylinder. The output shaft of the rotary air cylinder is directly connected with the rotary base, no complex transmission link exists in the middle, error accumulation in the transmission process is reduced, power of the rotary air cylinder can be accurately transmitted to the rotary base through the direct connection mode, the rotary base can accurately rotate according to control of the rotary air cylinder, and the transmission efficiency is improved. And accurate angle control and positioning are realized.

Description

Technical Field

[0001] This application relates to the field of stamping die technology, and more specifically to a sheet metal rotating mechanism and a stamping die. Background Technology

[0002] Stamping is a process in which pressure is applied to material at room temperature using dies mounted on a press, causing it to separate or plastically deform. Progressive stamping dies are a type of cold stamping die that can simultaneously complete multiple stamping operations at different stations on the same die using a single strip of material. The strip moves a fixed distance each time, and the process continues until a finished product is produced after each stroke.

[0003] Furthermore, the sheet metal stamping process in related technologies includes cutting, rotation, and multiple stamping steps. During processing, a robotic arm transports the sheet metal to obtain the final product. Due to the special shape of the sheet metal, if a straight-cut strip is used to obtain the sheet metal, it will result in a lot of waste material between the two middle sheets; while using a beveled strip can effectively save material. However, the sheet metal must be kept in the correct position during stamping. Therefore, after the cutting process, a rotating mechanism is needed to rotate the sheet metal by a certain angle before conveying it to the stamping position for stamping.

[0004] However, most existing sheet rotation mechanisms employ complex transmission methods such as belt drives and gear drives. These traditional mechanisms have many shortcomings. For example, the complex transmission links can lead to significant error accumulation during power transmission, resulting in lower angle control and positioning accuracy of the sheet rotation, making it difficult to meet the requirements of high-precision production processes. In addition, complex transmission structures are prone to vibration and stress concentration due to factors such as eccentricity, reducing the stability and reliability of the mechanism, increasing the probability of failure, shortening the service life of the mechanism, and increasing maintenance costs. Utility Model Content

[0005] The purpose of this application is to provide a sheet rotation mechanism and a stamping die to solve the problems of insufficient power transmission and unstable rotation of the sheet rotation mechanism.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a sheet rotation mechanism is provided, comprising: a base, a rotary cylinder, and a rotating seat. The rotating seat is used to assemble the sheet. The rotary cylinder is fixedly mounted on the base. The rotating seat is placed on the platform of the base. The central axis of the rotating seat coincides with the central axis of the rotary cylinder, so that the two are directly opposite each other. The rotary cylinder extends its output shaft along its central axis, passes through the base, and is directly connected to the rotating seat, so as to drive the rotating seat to rotate through the rotary cylinder.

[0007] As a preferred embodiment, a positioning boss is provided on the platform of the base, surrounding the mounting area of ​​the rotating seat, and a corresponding assembly groove is provided on the bottom of the rotating seat. The end of the output shaft passes through the positioning boss and connects with the assembly groove.

[0008] Alternatively, the end of the output shaft is fixedly connected to the midpoint of the groove depth of the mounting groove.

[0009] Further preferably, the base is provided with: a plate-shaped first leg and a second leg, which cooperate to support the base; and a mounting surface, on which a rotary cylinder is fixedly mounted; wherein the plate surfaces of the first leg and the second leg are positioned close to the rotary cylinder with a first gap.

[0010] Further preferably, a single limiting block is provided on one side of the rotating seat, and the limiting block is fixedly connected to the positioning boss.

[0011] Further preferably, the rotating base has a square outline, and chamfers are provided at the four corners of the rotating base.

[0012] Preferably, the diagonally opposite corners on the rotating seat are considered as a group, and the rotating seat includes a first group of chamfers and a second group of chamfers. The chamfer width of the first group of chamfers is a first width, and the chamfer width of the second group of chamfers is a second width. The chamfer angle is 45 degrees, and the first width is less than the second width.

[0013] Preferably, the rotating seat has a protruding mounting boss for engaging with the sheet material.

[0014] Further preferably, the mounting boss has a square outline, and chamfers are provided at the four corners of the mounting boss. The mounting boss includes a third group of chamfers and a fourth group of chamfers, with each diagonally opposite corner of the mounting boss forming a group. The orientation of the third group of chamfers corresponds to the first group of chamfers, and the orientation of the fourth group of chamfers corresponds to the second group of chamfers. The chamfer width of the third group of chamfers is a third width, and the chamfer width of the fourth group of corners is a fourth width. The chamfer angle of both groups is 45 degrees. The third width is greater than the fourth width, and the third width is greater than the first width, while the fourth width is less than the second width.

[0015] Furthermore, this application also provides a stamping die, including: a feeding mechanism for conveying a sheet material; a cutting and stamping mechanism disposed on top of the feeding mechanism for cutting and stamping the sheet material conveyed on the feeding mechanism; and a sheet material rotating mechanism as described in any of the above, the sheet material rotating mechanism being connected to the feeding mechanism for rotating and aligning the sheet material.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] The rotary cylinder is fixed to the base, and the rotating seat is placed on the base platform with their central axes aligned and facing each other. This compact layout enables the rotation of the material sheet within a limited space, which is highly advantageous for production equipment or work environments with limited space. It effectively saves installation space and makes the overall equipment structure simpler. Furthermore, the alignment of the central axes of the rotating seat and the rotary cylinder ensures more uniform and stable force transmission. When the rotary cylinder drives the rotating seat to rotate, it reduces vibration and stress concentration caused by factors such as eccentricity, thereby improving the stability and reliability of the rotating mechanism, extending its service life, and reducing the probability of failure.

[0018] This application document directly connects the output shaft of the rotary cylinder to the rotating seat without any complex transmission links, reducing the accumulation of errors during the transmission process. This direct connection method can accurately transmit the power of the rotary cylinder to the rotating seat, enabling the rotating seat to rotate precisely according to the control of the rotary cylinder, thus achieving precise angle control and positioning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the sheet rotation mechanism;

[0020] Figure 2 This is a schematic diagram of the material rotation mechanism from a frontal view.

[0021] Figure 3 This is a schematic diagram of the rotating seat in the first position of the sheet rotation mechanism;

[0022] Figure 4 This is a schematic diagram of the rotating seat in the second position of the sheet rotation mechanism;

[0023] Figure 5 A structural schematic diagram of the rotary seat and mounting boss;

[0024] Figure 6 A schematic diagram of a material sheet fitted onto a material sheet rotation mechanism;

[0025] Figure 7 This is a partial sectional view of the rotary cylinder after it has been connected to the rotating base;

[0026] Figure 8 This is a schematic diagram of the stamping die.

[0027] In the diagram: 1. Sheet rotation mechanism; 2. Stamping die; 4. Sheet; 10. Base; 11. Positioning boss; 12. First leg; 13. Second leg; 14. Mounting plane; 15. First clearance; 20. Rotary cylinder; 21. Output shaft; 30. Rotary seat; 31. Assembly slot; 32. Limiting block; 33. First chamfer; 34. Second chamfer; X1. First width; X2. Second width; X3. Third width; X4. Fourth width; 35. Assembly boss; 36. Third chamfer; 37. Fourth chamfer. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0032] In a preferred embodiment, see Figures 1 to 7This application provides a sheet rotation mechanism 1, including: a base 10, a rotary cylinder 20 and a rotating seat 30. The rotating seat 30 is used to assemble the sheet 4. The rotary cylinder 20 is fixedly mounted on the base 10. The rotating seat 30 is placed on the platform of the base 10. The central axis of the rotating seat 30 coincides with the central axis of the rotary cylinder 20 so that the two are directly opposite each other. The rotary cylinder 20 extends an output shaft 21 along its central axis, passes through the base 10 and is directly connected to the rotating seat 30 so as to drive the rotating seat 30 to rotate.

[0033] The rotary cylinder 20 and the robotic arm are coordinated via a solenoid valve to ensure that the rotation cycle of the rotary cylinder 20 driving the rotating seat 30 corresponds to the cycle of the robotic arm transporting the material piece 4. Simultaneously, the rotary cylinder 20 is fixed to the base 10, and the rotating seat 30 is placed on the platform of the base 10 with their central axes aligned. This compact layout enables the rotation of the material piece 4 within a limited space, which is highly advantageous for production equipment or work environments with limited space, effectively saving installation space and simplifying the overall equipment structure. Furthermore, the alignment of the central axes of the rotating seat 30 and the rotary cylinder 20 ensures more uniform and stable force transmission. When the rotary cylinder 20 drives the rotating seat 30 to rotate, it reduces vibration and stress concentration caused by eccentricity and other factors, thereby improving the stability and reliability of the rotating mechanism, extending its service life, and reducing the probability of failure.

[0034] This application document directly connects the output shaft 21 of the rotary cylinder 20 to the rotating seat 30 without any complex transmission links, reducing the accumulation of errors during the transmission process. This direct connection method can accurately transmit the power of the rotary cylinder 20 to the rotating seat 30, enabling the rotating seat 30 to rotate precisely according to the control of the rotary cylinder 20, thereby achieving precise angle control and positioning.

[0035] Meanwhile, since the material sheet rotation mechanism 1 in this application has a simple structure and precise transmission, it can maintain a high repeatability positioning accuracy after multiple rotation operations. This is very important for processes that require precise processing, assembly or inspection of the material sheet 4, and can ensure the positional accuracy of the material sheet 4 in different processes, thereby improving product quality and production efficiency.

[0036] The overall structure is relatively simple, and the installation positions of each component are clearly defined. The base 10 serves as a basic support component, providing a stable platform for the installation of the rotary cylinder 20 and the rotating seat 30. The design that the central axes of the rotary cylinder 20 and the rotating seat 30 coincide makes the installation process easier to align and adjust, reducing the installation difficulty and shortening the installation time.

[0037] Meanwhile, the rotary cylinder 20 directly drives the rotating seat 30, resulting in a short power transmission path, minimal energy loss, and efficient power transmission. The rotary cylinder 20 can quickly and effectively convert the energy of compressed air into the rotational motion of the rotating seat 30, meeting the power requirements of the material sheet 4 during rotation and improving production efficiency. Furthermore, the rotary cylinder 20 in this application leverages its fast response speed, enabling the rotating seat 30 to start, stop, and change direction in a short time. This allows the material sheet rotation mechanism 1 to quickly adapt to different production process requirements and work rapidly in conjunction with other equipment on automated production lines, improving the overall operating efficiency of the production system.

[0038] As a preferred embodiment, a positioning boss 11 is provided on the platform of the base 10 around the mounting area of ​​the rotating seat 30, and a corresponding assembly groove 31 is provided at the bottom of the rotating seat 30. The end of the output shaft 21 passes through the positioning boss 11 and connects with the assembly groove 31. The positioning boss 11 around the mounting area of ​​the rotating seat 30 and the assembly groove 31 at the bottom of the rotating seat 30, with the end of the output shaft 21 passing through the positioning boss 11 and connecting with the assembly groove 31, provide additional positioning and support for the connection between the rotating seat 30 and the output shaft 21 through the cooperation of the boss and the groove. This makes the rotating seat 30 more stable during rotation, avoids deviation or shaking due to the torque generated by rotation, and improves the overall structural stability of the rotating mechanism.

[0039] As another preferred option, see details. Figure 7 The end of the output shaft 21 is fixedly connected to the midpoint of the groove depth of the assembly groove 31, which facilitates the disassembly of the output shaft 21. At the same time, the fixed connection between the end of the output shaft 21 and the midpoint of the groove depth of the assembly groove 31 helps to ensure the balance of the rotating seat 30. Setting the connection position at the midpoint can make the torque on the rotating seat 30 more uniform when rotating, avoid uneven force on the rotating seat 30 due to the connection position being too low, prevent the rotating seat 30 from coming off relative to the output shaft 21, and further improve the rotation accuracy and positioning accuracy, which helps to achieve precise operation of the material sheet 4.

[0040] Further preferably, the base 10 is provided with: a plate-shaped first leg 12 and a second leg 13, which cooperate to support the base 10; it also has a mounting surface 14 on which a rotary cylinder 20 is fixedly mounted; wherein the plate surfaces of the first leg 12 and the second leg 13 are positioned close to the rotary cylinder 20 with a first gap 15. The plate-shaped first leg 12 and the second leg 13 cooperate to support the base 10. This structure can provide a stable support force for the base 10. Through the reasonable distribution of the legs, the weight of the base 10 and the rotary cylinder 20 and the rotating seat 30 on it can be evenly distributed on the support surface, ensuring that the entire rotating mechanism will not tip over or shake due to instability during operation, thus ensuring the stability and safety of the equipment.

[0041] Meanwhile, the plates of the first leg 12 and the second leg 13 are positioned close to the rotary cylinder 20 with a first gap 15. The gap provides convenient space for maintenance and operation. When performing installation, debugging, maintenance, or other operations on the rotary cylinder 20 or the rotating seat 30, the operator can use this gap to more easily approach the relevant components without being obstructed by the legs, which facilitates operation and tool use.

[0042] Further optimization involves providing a single limiting block 32 on one side of the rotating base 30, with the limiting block 32 fixedly connected to the positioning boss 11. This reduces manufacturing costs to some extent while ensuring the limiting effect.

[0043] Further preferably, the rotating base 30 has a square outline, and chamfers are provided at the four corners of the rotating base 30. The square outline facilitates positioning and installation on the base 10, accurately determining the position of the rotating base 30 and ensuring the relative positional accuracy with other components. The chamfer design avoids sharp edges from causing injury to operators during installation, and also prevents collisions with other components when the rotating base 30 rotates, thereby reducing the risk of component damage due to edge collisions.

[0044] Preferably, the diagonally opposite corners on the rotating seat 30 are grouped together. The rotating seat 30 includes a first group of chamfers 33 and a second group of chamfers 34. The chamfer width of the first group of chamfers 33 is a first width x1, and the chamfer width of the second group of chamfers 34 is a second width x2. The chamfer angle is 45 degrees for both groups, and the first width x1 is less than the second width x2. Specifically, setting chamfers of different widths at the four corners of the rotating seat 30 can optimize the stress distribution of the rotating seat 30 during rotation. Chamfers of different widths can specifically disperse stress according to the different stresses experienced by the rotating seat 30, reducing stress concentration, improving the structural strength and stability of the rotating seat 30, enabling it to better withstand the power transmitted by the rotary cylinder 20 and external forces such as centrifugal force generated during rotation, and extending the service life of the rotating seat 30.

[0045] See also for details Figure 1 , Figure 3 , Figure 4 and Figure 6 Since the rotation amplitude of the rotating seat 30 is fixed, the rotating seat 30 is in a state of flux. Figure 1 , Figure 3 The first position, rotated to Figure 4 and Figure 6 In the second position, the rotating seat needs to rotate approximately 45 degrees clockwise. Therefore, based on the rotating seat 30 in this application document... Figure 5 For reference, the two chamfers at the upper left and lower right positions, that is, the second width X2 of the second chamfer 34, is set to be larger, much larger than the first width X1 set by the first chamfer 33. This can effectively prevent the top corner of the rotating seat 30 from protruding when it rotates relative to the positioning boss 11, save rotation space and prevent the rotating seat 30 from colliding with other parts.

[0046] Preferably, the rotating base 30 has a protruding mounting boss 35, which is used to engage with the sheet material 4. Its square outline corresponds to the rotating base 30, facilitating precise engagement with the sheet material 4 of the corresponding shape. This ensures that the sheet material 4 remains relatively fixed to the rotating base 30 during rotation, preventing displacement or shaking. The mounting boss 35 facilitates the handling of the sheet material 4, allowing operators to more easily place or remove the sheet material 4 from it, improving operational convenience and work efficiency.

[0047] Further preferred, the mounting boss 35 has a square outline, and chamfers are provided at the four corners of the mounting boss 35. The mounting boss 35 includes a third group of chamfers 36 and a fourth group of chamfers 37, with the opposite side corners of the mounting boss 35 as a group. The orientation of the third group of chamfers 36 corresponds to the orientation of the first group of chamfers 33, and the orientation of the fourth group of chamfers 37 corresponds to the orientation of the second group of chamfers 34. The chamfer width of the third group of chamfers 36 is the third width x3, and the chamfer width of the fourth group of corners is the fourth width x4. The chamfer angle is 45 degrees. The third width x3 is greater than the fourth width x4, and the third width x3 is greater than the first width x1. The fourth width x4 is less than the second width x2, and the third width x3 is greater than the fourth width x4.

[0048] Specifically, the chamfer on the mounting boss 35 corresponds to the chamfer on the rotating seat 30, and they have different widths. This design enables precise positioning of the sheet 4 during the assembly process. By matching the corresponding chamfer on the sheet 4 with the chamfer on the mounting boss 35, the assembly direction and position of the sheet 4 can be accurately determined, ensuring the installation accuracy of the sheet 4 in the rotating mechanism, thereby meeting the precise requirements of different production processes for the position and angle of the sheet 4.

[0049] The chamfered design of the mounting boss 35 and the rotating seat 30 works together to make the connection between the sheet 4 and the rotating seat 30 more stable. Since the sheet rotation mechanism 1 in this application is preferably suitable for irregular sheet 4 structures, the engagement point of such irregular sheet 4 structures when assembled onto the rotating seat 30 will be off-center from the center of the rotating seat 30. Therefore, during rotation, the presence of the chamfer can make the force transmission between the irregular sheet 4 and the mounting boss 35 more uniform, reducing the loosening or falling off of the sheet 4 caused by uneven force distribution, and enhancing the stability and reliability of the entire rotation mechanism during operation.

[0050] Further, see Figure 8 This application also provides a stamping die 2, including: a feeding mechanism for transporting a sheet 4, specifically a robotic arm for gripping and transporting the sheet 4; a cutting and stamping mechanism located on top of the feeding mechanism for cutting and stamping the sheet 4 transported on the feeding mechanism; and a sheet rotating mechanism 1 as described above, connected to the feeding mechanism for rotating and aligning the sheet 4.

[0051] During the cutting process of material sheet 4, the orientation of the cut material sheet 4 is... Figure 1 , Figure 3 The mold for the assembly boss 35 is set in an inclined direction. When the obliquely cut piece 4 is placed on the mold by the feeding mechanism, the mold is set in an inclined direction. Figure 1 , Figure 3The assembly boss 35 is inclined in the first position, and the rotary cylinder 20 drives the rotating seat 30 to rotate so as to align the material sheet 4. Figure 4 , Figure 6 The state of the second position in the middle.

[0052] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A sheet rotation mechanism, characterized in that, include: The system comprises a base, a rotary cylinder, and a rotating seat. The rotating seat is used to assemble the material sheet. The rotary cylinder is fixedly mounted on the base. The rotating seat is placed on the platform of the base. The central axis of the rotating seat coincides with the central axis of the rotary cylinder, so that the two are directly opposite each other. The rotary cylinder extends its output shaft along its central axis, passes through the base, and is directly connected to the rotating seat, so as to drive the rotating seat to rotate through the rotary cylinder.

2. The sheet rotation mechanism as described in claim 1, characterized in that, On the platform of the base, a positioning boss is provided around the mounting area of ​​the rotating seat, and a corresponding assembly groove is provided at the bottom of the rotating seat. The end of the output shaft passes through the positioning boss and connects with the assembly groove.

3. The sheet rotation mechanism as described in claim 2, characterized in that, The end of the output shaft is fixedly connected to the midpoint of the groove depth of the assembly groove.

4. The sheet rotation mechanism as described in claim 1, characterized in that, The base is provided with: a plate-shaped first leg and a second leg, which cooperate to support the base; It also has an installation surface, on which a rotary cylinder is fixedly installed; The plates of the first leg and the second leg are positioned close to the rotary cylinder with a first gap.

5. The sheet rotation mechanism as described in claim 2, characterized in that, A single limiting block is provided on one side of the rotating seat, and the limiting block is fixedly connected to the positioning boss.

6. The sheet rotation mechanism as described in claim 5, characterized in that, The rotating base has a square outline, and chamfers are provided at the four corners of the rotating base.

7. The sheet rotation mechanism as described in claim 6, characterized in that, The rotating seat includes a first set of chamfers and a second set of chamfers, with the opposite side angles on the rotating seat forming a group. The chamfer width of the first set of chamfers is a first width, and the chamfer width of the second set of chamfers is a second width. The chamfer angle is 45 degrees, and the first width is smaller than the second width.

8. The sheet rotation mechanism as described in claim 7, characterized in that, The rotating seat has a protruding mounting boss, which is used to fit with the material sheet.

9. The sheet rotation mechanism as described in claim 8, characterized in that, The mounting boss has a square outline, and chamfers are provided at the four corners of the mounting boss. The mounting boss includes a third set of chamfers and a fourth set of chamfers, with the diagonally opposite corners of the mounting boss forming a group. The orientation of the third set of chamfers corresponds to that of the first set of chamfers, and the orientation of the fourth set of chamfers corresponds to that of the second set of chamfers. The chamfer width of the third set of chamfers is the third width, and the chamfer width of the fourth set of apex corners is the fourth width. The chamfer angles are all 45 degrees. The third width is greater than the fourth width, and the third width is greater than the first width. The fourth width is less than the second width.

10. A stamping die, characterized in that, include: The feeding mechanism is used to transport the sheet material; A cutting and stamping mechanism is provided on top of the feeding mechanism and is used to cut and stamp the sheet material being transported on the feeding mechanism. It also includes a sheet rotation mechanism as described in any one of claims 1-9, the sheet rotation mechanism being connected to the feeding mechanism for rotating and aligning the sheet.

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