Caster bracket stamping forming equipment and use method

Abstract

The present invention belongs to the field of metal stamping technology and discloses a caster bracket stamping forming device and a use method; the coil is provided with a wheel hole and a shaft hole; the stamping forming device includes a forming module with a shearing function and a stamping function, the shearing function of the forming module is used to make the coil into a bracket sheet material, and the stamping function of the forming module is used to make the bracket sheet material into a caster bracket; the forming module is composed of a forming punch and a forming die, the forming punch is provided with a guide part, and the forming die is provided with a guide hole; when the forming module performs the shearing function, the guide part and the guide hole cooperate with the wheel hole or the shaft hole on the coil for positioning, thereby improving the processing accuracy; by arranging the guide part on the forming punch and the guide hole on the forming die, and enabling the two to cooperate with the wheel hole or the shaft hole on the coil for positioning, the positioning accuracy during the processing is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal stamping, and in particular relates to a caster bracket stamping forming device and a use method thereof. Background Art

[0002] Casters, a crucial component in modern industry and logistics, consist of wheels, a movable frame, and a base. These components work together to ensure efficient and easy movement of items, significantly improving handling efficiency and reducing labor intensity. Casters are primarily categorized into three types: fixed casters, swivel casters, and fixed casters, depending on their function and application. Swivel casters, however, are highly favored in many applications due to their ability to swivel freely.

[0003] However, the manufacturing of universal casters, particularly the design and production of their movable brackets, presents a host of challenges. The production process for these brackets encompasses multiple complex steps, from shearing to bending, punching, and final molding. Each step requires extremely precise positioning of the workpiece, a crucial requirement especially when dealing with complex shapes or brackets requiring high-precision positioning.

[0004] During the manufacturing process, deviations in workpiece positioning, whether in critical steps like bending or punching, can cause the finished product to deviate from design specifications, resulting in unacceptable dimensional tolerances. Incorrect positioning not only affects the product's dimensional accuracy but can also cause additional pressure or friction on the workpiece during processing, resulting in surface defects such as scratches and indentations, seriously impacting product quality. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a caster bracket stamping forming device and a method of use to solve the problems existing in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the first technical solution of the present invention is a caster bracket stamping and forming equipment, the caster bracket includes a main frame and a wheel hole and a shaft hole opened on the main frame, the stamping and forming equipment is used for processing from a coil to a caster bracket, the coil has a wheel hole and a shaft hole; the stamping and forming equipment includes a forming module with a shearing function and a stamping function, the shearing function of the forming module is used to make the coil into a bracket sheet material, and the stamping function of the forming module is used to make the bracket sheet material into a caster bracket; the forming module is composed of a forming punch and a forming die, the forming punch has a guide member, and the forming die has a guide hole; when the forming module performs the shearing function, the guide member and the guide hole cooperate with the wheel hole or the shaft hole on the coil for positioning, thereby improving the processing accuracy.

[0007] Preferably, the detailed structure of the forming punch and the forming die and their working principle are as follows: the forming punch includes a punch seat, the punch seat is provided with a main body and side wings located on both sides of the main body; the forming die includes a die seat, the die seat is provided with a shearing groove, and the shearing groove is provided with a stamping groove; the position of the main body and the side wings can be adjusted; when the bottom surfaces of the main body and the side wings are in the same horizontal plane, a shearing head is formed, and with the cooperation of the shearing head and the shearing groove, the shearing function of the forming punch in the forming module is realized; when the bottom surfaces of the main body and the side wings are in a convex structure, a stamping head is formed, and with the cooperation of the stamping head and the stamping groove, the stamping function of the forming punch in the forming module is realized.

[0008] Furthermore, a precise morphological conversion mechanism is provided for the forming punch to switch between the shearing head and the punching head: the side wings are fixedly arranged on the punch seat, the main body is slidably arranged on the punch seat, and the main body moves in a direction perpendicular to the punch seat so that the forming punch can switch between the shearing head and the punching head; the guide members are slidably arranged on the side wings, and the guide members move in a direction perpendicular to the punch seat so that the guide members can be retracted and protruded on the side wings; when the forming punch is switched to the shearing head, the guide members protrude on the side wings so that the guide members and the guide holes can be positioned in conjunction with the wheel holes or shaft holes on the coil to improve processing accuracy; when the forming punch is switched to the punching head, the guide members are retracted on the side wings to avoid the guide members hindering the stamping of the bracket sheet.

[0009] Furthermore, a control circuit is added to control the switching of the forming punch between the shearing head and the punching head: a control circuit is provided on the punch seat, and the openings at both ends of the control circuit are oriented in the same direction. The two ends of the control circuit are respectively provided with a first piston and a second piston, the first piston is connected to the main body, and the second piston is connected to the guide member, and the movement of the main body and the guide member is controlled by the control circuit; when the bottom surfaces of the main body and the side wings are in the same horizontal plane, the guide member protrudes on the side wings; when the bottom surfaces of the main body and the side wings are in a convex structure, the guide member is retracted on the side wings.

[0010] Furthermore, the structure of the control circuit is optimized: the caliber of the first piston is smaller than the caliber of the second piston, so that the moving stroke of the main body is greater than the moving stroke of the guide member; a telescopic component is provided at the location of the second piston, and the output end of the telescopic component is connected to the second piston, and the telescopic component controls the movement of the second piston in the control circuit, thereby driving the movement of the main body and the guide member.

[0011] Furthermore, the forming die switches between the shearing function, the stamping function and the material return function: the shearing groove is adapted to the shearing head formed by the main body and the side wings, the main body is adapted to the stamping groove, and the depth of the shearing groove is less than the depth of the stamping groove; a stamping support plate is provided in the stamping groove, and shearing support plates are provided on both sides of the stamping support plate in the shearing groove, and the guide hole is provided on the shearing support plate; the stamping support plate and the shearing support plate are both slidably provided in the groove ; When the shearing support plate is located below the notch of the shearing groove and the stamping support plate rises in the stamping groove, so that the stamping support plate and the shearing support plate are in the same horizontal plane, the shearing function of the forming die in the forming module is realized; when the stamping support plate drops to the bottom end of the stamping groove, the stamping function of the forming die in the forming module is realized; when the stamping support plate and the shearing support plate both move the notch of the shearing groove, the caster bracket is returned after stamping.

[0012] Furthermore, a piston cavity is added to control the switching of the forming die between the shearing function, the stamping function and the material return function: the stamping support plate and the shearing support plate are both provided with independent piston cavities on the die seat, and the movement of the stamping support plate and the shearing support plate is controlled by controlling the amount of gas in the corresponding piston cavity; when the forming die is performing stamping and shearing operations, the shearing support plate is not located at the bottom of the shearing groove, so that the compressibility of the gas can be used to act as a buffer during operation.

[0013] Preferably, a punching module is added for punching the coil: the stamping forming equipment includes a punching module, and the punching module is used to process the wheel holes and the shaft holes on the coil; the punching module includes an upper die base and a lower die base, the upper die base is provided with a punching head, and the lower die base is provided with punching holes, and the punching head and the punching holes are adapted to each other; a base is slidably provided on the punching head, and the base is used to fix the coil during the punching operation; a buffer spring is provided between the base and the upper die base, and the buffer spring is used to provide support for the base.

[0014] In order to solve the above technical problems, the second technical solution of the present invention is a method for using a caster bracket stamping and forming device, which is characterized in that the caster bracket stamping and forming device described in the first technical solution is applied, and the method of use includes the forming module performing a shearing function, and the forming module performs the shearing function as follows:

[0015] S1, feeding the punched coil into the forming module;

[0016] S2. The main body and the guide member are driven by the telescopic member to move, so that the guide member extends and adjusts the main body and the side wings to be at the same level to form a shearing head; gas is introduced into the piston cavity to make the shearing support plate be located below the notch of the shearing groove so that the stamping support plate and the shearing support plate are at the same level;

[0017] S3, the forming punch moves downward, and the guide, the guide hole and the runner hole or the shaft hole on the coil cooperate to perform positioning;

[0018] S4, the shearing head cooperates with the shearing groove of the forming die to cut the coil into the required bracket sheet.

[0019] Preferably, the method of use includes the forming module performing a stamping function, and the forming module performs the stamping function as follows:

[0020] S5. After the coil is cut into the required bracket sheet, the forming punch moves upward and the bracket sheet is placed in the shearing groove;

[0021] S6. The main body and guide member are driven by the telescopic member to move, and the bottom surface of the main body and side wings of the forming punch are adjusted to form a convex structure as a punching head, and the guide member is retracted at the same time; the punching support plate is lowered to the bottom end of the punching groove;

[0022] S7, the forming punch moves downward, and the punch head cooperates with the punching groove of the forming die to punch the bracket sheet to form a caster bracket with a wheel hole and a shaft hole;

[0023] S8. Introduce gas into the piston cavity, so that the stamping support plate and the shearing plate support plate both move the notches of the shearing plate grooves to realize the material removal after the caster bracket is stamped and formed.

[0024] The technical effects of the present invention are mainly reflected in the following aspects:

[0025] By arranging a guide on the forming punch and a guide hole on the forming die, and enabling the two to be positioned in conjunction with the runner hole or shaft hole on the coil, the positioning accuracy during the processing is greatly improved.

[0026] The main body can move vertically on the punch holder, allowing the forming punch to be flexibly switched between the shearing head and the punching head, ensuring that each operation meets the high-precision standards required by the design. By integrating the shearing and punching functions into one device, the entire production process from coiling to the final finished caster bracket can be completed within the same device, without the need to transfer the workpiece to other machines for secondary processing.

[0027] The positions of the punching support plate and the shearing support plate are precisely controlled by introducing or extracting gas into the independent piston chambers. The compressibility of the gas is used to provide a buffer, thereby reducing the impact force on the workpiece and protecting the workpiece from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the structural diagram of the universal caster;

[0029] Figure 2 It is a structural diagram of the present invention;

[0030] Figure 3 for Figure 2 Structural diagram of the intermediate molding module;

[0031] Figure 4 for Figure 2 Structural explosion diagram of the mid-molding module;

[0032] Figure 5 for Figure 3 Structural diagram of the forming punch in the shearing function;

[0033] Figure 6 for Figure 3 Structural diagram of the forming punch in the stamping function;

[0034] Figure 7 for Figure 3 Structural diagram of the forming die in the shearing function;

[0035] Figure 8 for Figure 3 Structural diagram of the forming die in the stamping function;

[0036] Figure 9 for Figure 3 Schematic diagram of the control circuit inside the forming punch;

[0037] Figure 10 for Figure 2 Cross-sectional view of the punching module;

[0038] In the figure: 1. caster bracket, 11. main frame, 12. wheel hole, 13. shaft hole; 2. forming module, 21. forming punch, 211. guide member, 212. punch seat, 213. main body, 214. side wing, 215. control circuit, 216. first piston, 217. second piston, 218. telescopic component; 22. forming die, 221. guide hole, 222. die seat, 223. shearing groove, 224. stamping groove, 225. stamping support plate, 226. shearing support plate; 3. punching module, 31. upper die seat, 32. lower die seat, 33. punching head, 34. stamping hole, 35. base, 36. buffer spring. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the specific implementation methods of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and grasp. In the embodiments, it should be understood that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, in this specific embodiment, if the connection or fixing method between the components is not particularly specified, the connection or fixing method can be fixed by bolts or pins commonly used in the prior art, or by pin connections, etc. Therefore, it will not be described in detail in this embodiment.

[0040] See also Figure 1 , caster structure introduction: the caster bracket 1 includes a main frame 11 and a wheel hole 12 and a shaft hole 13 opened on the main frame 11. The main frame 11 here refers to the rotating frame mentioned in the background technology. As for the wheel hole 12 and the shaft hole 13 on the main frame 11, they are only for the convenience of describing the subsequent description of the present invention.

[0041] Example 1

[0042] See also Figure 2 、 Figure 3 In the traditional manufacturing process, positioning deviation of the workpiece is a common problem, which not only affects the dimensional accuracy of the product, but may also cause surface defects. The present embodiment discloses a stamping and forming device for a caster bracket 1, wherein the stamping and forming device is used for processing from a coil to a caster bracket 1, wherein the coil has a runner hole 12 and a shaft hole 13; the stamping and forming device includes a forming module 2 with a shearing function and a stamping function, wherein the shearing function of the forming module 2 is used to make the coil into a bracket sheet material, and the stamping function of the forming module 2 is used to make the bracket sheet material into a caster bracket 1; the stamping and forming device integrates the two functions of shearing and stamping, so that the entire production process from the coil to the final finished caster bracket 1 can be completed on one device, without the need to transfer the workpiece to other machines for secondary processing. This design not only saves space, but also reduces the errors that may be caused by multiple handling of workpieces.

[0043] See also Figure 3The forming module 2 is composed of a forming punch 21 and a forming die 22. The forming punch 21 has a guide member 211, and the forming die 22 has a guide hole 221. When the forming module 2 performs the shearing function, the guide member 211 and the guide hole 221 cooperate with the runner hole 12 or the shaft hole 13 on the coil for positioning, thereby improving processing accuracy. By providing the guide member 211 on the forming punch 21 and the guide hole 221 on the forming die 22, and these guide components can directly cooperate with the runner hole 12 or the shaft hole 13 on the coil for positioning, the positioning accuracy during the processing process is greatly improved. This ensures that even when processing movable brackets with complex shapes or requiring high-precision positioning, the workpiece can be accurately operated in key processes such as bending and punching.

[0044] See also Figure 4 The forming punch 21 includes a punch base 212, which is provided with a main body 213 and side wings 214 located on both sides of the main body 213. The forming die 22 includes a die base 222, which is provided with a shearing groove 223, which is mainly used to cooperate with the shearing head to complete the material shearing operation. The shearing groove is provided with a punching groove 224, which interacts with the punching head during the punching process to ensure that the workpiece can be accurately punched and formed. The position of the main body 213 and the side wings 214 can be adjusted; when the bottom surfaces of the main body 213 and the side wings 214 are in the same horizontal plane, a shearing head is formed, and with the cooperation of the shearing head and the shearing groove 223, the shearing function of the forming punch 21 in the forming module 2 is realized; when the bottom surfaces of the main body 213 and the side wings 214 are in a convex structure, a punching head is formed, and with the cooperation of the punching head and the punching groove 224, the punching function of the forming punch 21 in the forming module 2 is realized.

[0045] See also Figure 5 、 Figure 6 The side wings 214 are fixedly mounted on the punch base 212, and the main body 213 is slidably mounted on the punch base 212. The main body 213 moves in a direction perpendicular to the punch base 212 so that the forming punch 21 can switch between the shearing head and the punching head. Specifically, when a shearing operation is required, the bottom surfaces of the main body 213 and the side wings 214 are at the same horizontal plane to form a shearing head. When a punching operation is required, the main body 213 descends so that its bottom surface is lower than the side wings 214 to form a punching head. This design ensures fast and precise switching between the two functions, reducing errors caused by equipment adjustments.

[0046] The guide member 211 is slidably arranged on the side wing 214. The guide member 211 moves in a direction perpendicular to the punch seat 212, allowing the guide member 211 to be retracted and protruded on the side wing 214. When the forming punch 21 is switched to the shearing head, the guide member 211 protrudes from the side wing 214 so that the guide member 211 and the guide hole 221 can be positioned in conjunction with the wheel hole 12 or the shaft hole 13 on the coil, thereby improving processing accuracy. During the shearing stage, the guide member 211 protrudes from the side wing 214, so that the wheel hole 12 or the shaft hole 13 on the coil can be directly used as a reference point for precise positioning. The coordinated use of the guide member 211 and the guide hole 221 greatly improves the accuracy of workpiece positioning, thereby ensuring dimensional accuracy during the shearing process. When the forming punch 21 is switched to the punching head, the guide member 211 is retracted on the side wing 214 to prevent the guide member 211 from obstructing the stamping of the bracket sheet. When switching to the stamping stage, the guide member 211 automatically retracts into the side wing 214 to avoid any obstruction to the stamping of the bracket sheet. This design ensures that the presence of the guide member 211 will not cause unnecessary interference or errors during the stamping process, ensuring the dimensional accuracy of the final product.

[0047] See also Figure 9The punch seat 212 is provided with a control circuit 215, and the openings at both ends of the control circuit 215 are oriented in the same direction. The two ends of the control circuit 215 are respectively provided with a first piston 216 and a second piston 217, the first piston 216 is connected to the main body 213, and the second piston 217 is connected to the guide member 211. The movement of the main body 213 and the guide member 211 is controlled by the control circuit 215; when the bottom surfaces of the main body 213 and the side wings 214 are in the same horizontal plane, the guide member 211 protrudes on the side wings 214; when the bottom surfaces of the main body 213 and the side wings 214 are in a convex structure, the guide member 211 is retracted on the side wings 214. The caliber of the first piston 216 is smaller than that of the second piston 217, so that the movement stroke of the main body 213 is greater than the movement stroke of the guide member 211; while the volume of the main body 213 is increased to meet the stamping requirements, the large movement stroke can also align the main body 213 and the side wings 214 during shearing, and can also make the guide member 211 smaller, so as to adapt to the size of the wheel hole 12 and the shaft hole 13 on the caster main frame 11 while meeting the guidance requirements. The bottom surfaces of the main body 213 and the side wings 214 can be quickly and accurately adjusted to the same horizontal plane (for the shearing head form) or form a convex structure (for the punching head form), while ensuring that the guide member 211 can accurately protrude or retract when needed; allowing the equipment to dynamically adjust the position of the main body 213 and the guide member 211 according to the requirements of the current processing stage. For example, in the shearing stage, the guide member 211 protrudes to improve positioning accuracy; while in the stamping stage, the guide member 211 retracts to avoid interference. A telescopic component 218 is provided at the location of the second piston 217. The output end of the telescopic component 218 is connected to the second piston 217. The telescopic component 218 controls the movement of the second piston 217 in the control circuit 215, thereby driving the main body 213 and the guide member 211 to move.

[0048] See also Figure 7 、 Figure 8, the shearing groove 223 is adapted to the shearing head formed by the main body 213 and the side wings 214, ensuring that the material can be accurately cut during the shearing process. The main body 213 is adapted to the stamping groove 224, and the depth of the shearing groove 223 is less than the depth of the stamping groove 224, providing space for the subsequent stamping process. A stamping support plate 225 is provided in the stamping groove 224, and shearing support plates 226 are provided on both sides of the stamping support plate 225 in the shearing groove 223; the guide hole 221 is provided on the shearing support plate 226, and the existence of the guide hole 221 is to cooperate with the guide part 211 on the punch to ensure that the workpiece can be accurately positioned during the shearing stage. When the guide part 211 protrudes and cooperates with the guide hole 221, the positioning accuracy can be greatly improved, thereby ensuring the accuracy of the shearing position. The stamping support plate 225 and the shearing support plate 226 are both slidably arranged in the groove; when the shearing support plate 226 is located below the notch of the shearing groove 223 and the stamping support plate 225 is raised in the stamping groove 224, so that the stamping support plate 225 and the shearing support plate 226 are in the same horizontal plane, the shearing function of the forming die 22 in the forming module 2 is realized; when the stamping support plate 225 descends to the bottom end of the stamping groove 224, the stamping function of the forming die 22 in the forming module 2 is realized; when the stamping support plate 225 and the shearing support plate 226 both move the notch of the shearing groove 223, the caster bracket 1 is returned after stamping.

[0049] The stamping support plate 225 and the shearing support plate 226 are both provided with independent piston cavities in the die seat 222, and the piston cavity for controlling the stamping support plate 225 adopts a multi-stage telescopic structure to meet the movement requirements of the stamping support plate 225. The movement of the stamping support plate 225 and the shearing support plate 226 is controlled by controlling the amount of gas in the corresponding piston cavity; it not only provides high-precision position adjustment capabilities, but also utilizes the compressibility of the gas to play a buffering role during the operation. When the forming die 22 is performing stamping operations and shearing operations, the shearing support plate 226 is not located at the bottom of the shearing groove 223, in order to provide a buffer with the help of the compressibility of the gas, reduce the impact force on the workpiece, and prevent deformation or damage caused by hard contact. Specifically, when performing stamping or shearing operations, the shearing support plate 226 will not be completely lowered to the bottom of the shearing groove 223, but will maintain a certain gap. The purpose of this is to provide a buffer with the help of the compressibility of the gas, reduce the impact force on the workpiece, and prevent deformation or damage caused by hard contact. When the punching operation is carried out, the punch head presses down quickly. If it directly contacts the hard surface, it may cause the workpiece to deform or the equipment to be damaged. Since there is space under the shear support plate 226 and it is filled with gas, the compressibility of the gas can absorb the impact energy to a certain extent, provide the necessary buffer, protect the workpiece from damage, and also extend the service life of the equipment. By independently controlling the amount of gas in the piston cavity of each support plate, very precise position adjustment can be achieved; whether it is the shearing or stamping stage, the support plate can be adjusted to the most appropriate height as needed to ensure processing accuracy; the gas buffer mechanism reduces vibration and impact during the processing process, helps to maintain the stability and consistency of the workpiece, and further improves the dimensional accuracy of the final product.

[0050] See also Figure 10The stamping and forming equipment includes a punching module 3, which is used to process the wheel hole 12 and the shaft hole 13 on the coil; the punching module 3 includes an upper die base 31 and a lower die base 32. The upper die base 31 is provided with a punching head 33, and the lower die base 32 is provided with a punching hole 34. The punching head 33 and the punching hole 34 are adapted to ensure that the required wheel hole 12 and shaft hole 13 can be accurately formed on the coil during the punching operation. A base 35 is slidably provided on the punching head 33. The main function of the base 35 is to fix the coil during the punching process, ensuring that the coil does not move or deflect when subjected to the punching force, thereby ensuring the accuracy of the hole position. The base 35 is used to fix the coil during the punching operation; a buffer spring 36 is provided between the base 35 and the upper die base 31, and the buffer spring 36 is used to provide support for the base 35; the buffer spring 36 not only helps to absorb the impact force during the punching process and reduce damage to the coil, but also ensures that the base 35 applies appropriate pressure when contacting the coil to maintain the stability of the coil. Regarding the movement of the coil between the punching module 3 and the forming module 2 and the pickup of the material after the caster support stamping and forming is released: the intermittent transportation of coils and the pickup of materials have long been mature technical applications on the market and will not be elaborated here.

[0051] Example 2

[0052] A method for using a stamping and forming device for a caster bracket 1 is provided, wherein the stamping and forming device for the caster bracket 1 described in the first embodiment is applied. The method includes the forming module 2 performing a shearing function. The forming module 2 performs the shearing function as follows:

[0053] S1. Feed the punched coil into the forming module 2; ensure that the coil has been pre-processed (such as punching), and then feed it correctly into the working area of ​​the forming module 2.

[0054] S2. Prepare for shearing operation: The telescopic member 218 drives the main body 213 and the guide member 211 to move, so that the guide member 211 extends and adjusts the main body 213 and the side wings 214 to the same horizontal plane at the bottom, forming a shearing head; air is introduced into the piston chamber to position the shearing support plate 226 below the notch of the shearing groove 223, so that the stamping support plate 225 and the shearing support plate 226 are on the same horizontal plane;

[0055] S3. The forming punch 21 moves downward, and the guide member 211, the guide hole 221 and the wheel hole 12 or the shaft hole 13 on the coil cooperate to perform positioning, providing an accurate positioning reference to ensure the accuracy of the shearing position.

[0056] S4, the shearing head cooperates with the shearing groove 223 of the forming die 22 to cut the coil into the required bracket sheet material.

[0057] The method of use includes the forming module 2 performing a stamping function, and the forming module 2 performs the stamping function as follows:

[0058] S5. After the coil is cut into the required bracket sheet materials, the forming punch 21 moves upward, and the bracket sheet materials are placed in the shearing groove 223, ready for the next stamping process.

[0059] S6. Prepare for stamping: The telescopic member 218 drives the main body 213 and the guide member 211 to move, adjusting the bottom surface of the main body 213 and the side wings 214 of the forming punch 21 to form a convex structure as a stamping head, and at the same time retracting the guide member 211; the stamping support plate 225 descends to the bottom end of the stamping groove 224;

[0060] S7, the forming punch 21 moves downward, and the punch head cooperates with the punching groove 224 of the forming die 22 to punch the bracket sheet to form the caster bracket 1 with the wheel hole 12 and the shaft hole 13;

[0061] S8. Introduce gas into the piston cavity, so that the stamping support plate 225 and the shearing support plate 226 both move the notches of the shearing groove 223 to realize the withdrawal of the caster bracket 1 after stamping; thereby facilitating the withdrawal of the finished caster bracket 1 and preparing for the next round of processing cycle.

[0062] In addition, as common knowledge in the industry, the multi-stage telescopic structure mentioned above can be specifically referred to as the multi-stage telescopic mechanism in the telescopic device. The above is common knowledge; therefore, its principle and structure will not be described in detail.

[0063] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A caster bracket stamping and forming device, the caster bracket comprising a main frame and a wheel hole and a shaft hole provided on the main frame, characterized in that: The stamping and forming equipment is used for processing a caster bracket from a coil, wherein the coil has a runner hole and a shaft hole; The stamping and forming equipment includes a forming module with a shearing function and a stamping function. The shearing function of the forming module is used to form a coil into a bracket sheet material, and the stamping function of the forming module is used to form a caster bracket from the bracket sheet material. The forming module is composed of a forming punch and a forming die. The forming punch has a guide member, and the forming die has a guide hole. When the forming module performs the shearing function, the guide member and the guide hole cooperate with the wheel hole or the shaft hole on the coil to perform positioning, thereby improving processing accuracy. The forming punch comprises a punch seat, wherein the punch seat is provided with a main body and side wings located on both sides of the main body; the forming die comprises a die seat, wherein the die seat is provided with a shearing groove, and wherein a punching groove is provided in the shearing groove; the position of the main body and the side wings can be adjusted; when the bottom surfaces of the main body and the side wings are at the same horizontal plane, a shearing head is formed, and under the cooperation of the shearing head and the shearing groove, the shearing function of the forming punch in the forming module is realized; when the bottom surfaces of the main body and the side wings are in a convex structure, a punching head is formed, and under the cooperation of the punching head and the punching groove, the punching function of the forming punch in the forming module is realized; The side wings are fixedly arranged on the punch seat, and the main body is slidably arranged on the punch seat. The main body moves in a direction perpendicular to the punch seat so that the forming punch can be switched between the shear head and the punch head; the guide members are slidably arranged on the side wings, and the guide members move in a direction perpendicular to the punch seat so that the guide members can be retracted and protruded on the side wings. When the forming punch is switched to the shearing head, the guide part protrudes on the side wing so that the guide part and the guide hole can be positioned in conjunction with the wheel hole or the shaft hole on the coil, thereby improving processing accuracy; when the forming punch is switched to the punching head, the guide part is retracted on the side wing to avoid the guide part hindering the stamping forming of the bracket sheet.

2. The caster bracket stamping and forming equipment according to claim 1, characterized in that: The punch seat is provided with a control circuit, with both ends of the control circuit opening facing the same direction. The two ends of the control circuit are respectively provided with a first piston and a second piston, the first piston is connected to the main body, and the second piston is connected to the guide member, and the movement of the main body and the guide member is controlled by the control circuit; When the bottom surfaces of the main body and the side wings are at the same horizontal plane, the guide members protrude on the side wings; When the bottommost surfaces of the body and the side wings are in a convex configuration, the guide members are retracted on the side wings.

3. The caster bracket stamping and forming equipment according to claim 2, characterized in that: The diameter of the first piston is smaller than that of the second piston, so that the moving stroke of the main body is greater than the moving stroke of the guide member; A telescopic component is provided at the location of the second piston, and an output end of the telescopic component is connected to the second piston. The telescopic component controls the movement of the second piston in the control circuit, thereby driving the main body and the guide member to move.

4. The caster bracket stamping and forming equipment according to claim 3, characterized in that: The shearing groove is adapted to the shearing head formed by the main body and the side wings, the main body is adapted to the punching groove, and the depth of the shearing groove is less than the depth of the punching groove; A stamping support plate is provided in the stamping groove, shearing support plates are provided on both sides of the stamping support plate in the shearing groove, and the guide holes are provided on the shearing support plates; The punching support plate and the shearing support plate are both slidably arranged in the groove; When the shearing support plate is located below the notch of the shearing slot and the punching support plate is raised in the punching slot so that the punching support plate and the shearing support plate are in the same horizontal plane, the shearing function of the forming die in the forming module is realized; When the stamping support plate descends to the bottom end of the stamping groove, the stamping function of the forming die in the forming module is realized; When the punching support plate and the shearing support plate both move the notches of the shearing grooves, the caster bracket is stripped after being punched and formed.

5. The caster bracket stamping and forming equipment according to claim 4, characterized in that: The punching support plate and the shearing support plate are each provided with an independent piston cavity in the die seat, and the movement of the punching support plate and the shearing support plate is controlled by controlling the amount of gas in the corresponding piston cavity; When the forming die is performing stamping and shearing operations, the shearing support plate is not located at the bottom of the shearing groove, so that the compressibility of the gas can be used to provide a buffer during the operation.

6. The caster bracket stamping and forming equipment according to claim 1, characterized in that: The stamping and forming equipment includes a punching module, which is used to process the runner hole and the shaft hole on the coil; The punching module includes an upper die base and a lower die base, the upper die base is provided with a punching head, the lower die base is provided with a punching hole, and the punching head is adapted to the punching hole; A base is slidably provided on the punching head, and the base is used to fix the coil during the punching operation; a buffer spring is provided between the base and the upper die base, and the buffer spring is used to provide support for the base.

7. A method for using a caster bracket stamping and forming device, characterized in that: The caster bracket stamping and forming device according to claim 5 is used, and the method of use includes the forming module performing a shearing function, and the forming module performs the shearing function as follows: S1, feeding the punched coil into the forming module; S2. The main body and the guide member are driven by the telescopic member to move, so that the guide member extends and adjusts the main body and the side wings to be at the same level to form a shearing head; gas is introduced into the piston cavity to make the shearing support plate be located below the notch of the shearing groove so that the stamping support plate and the shearing support plate are at the same level; S3, the forming punch moves downward, and the guide, guide hole and the runner hole or shaft hole on the coil cooperate to perform positioning; S4, the shearing head cooperates with the shearing groove of the forming die to cut the coil into the required bracket sheet material.

8. The method for using the caster bracket stamping and forming equipment according to claim 7, characterized in that: The method of use includes the forming module performing a stamping function, and the forming module performs the stamping function as follows: S5. After the coil is cut into the required bracket sheet, the forming punch moves upward and the bracket sheet is placed in the shearing groove; S6. The main body and guide member are driven by the telescopic member to move, and the bottom surface of the main body and side wings of the forming punch are adjusted to form a convex structure as a punching head, and the guide member is retracted at the same time; the punching support plate is lowered to the bottom end of the punching groove; S7, the forming punch moves downward, and the punch head cooperates with the punching groove of the forming die to punch the bracket sheet to form a caster bracket with a wheel hole and a shaft hole; S8. Introduce gas into the piston cavity, so that the stamping support plate and the shearing plate support plate both move the notches of the shearing plate grooves to realize the material removal after the caster bracket is stamped and formed.

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