Stamping die and method for facilitating feeding

Abstract

This invention discloses a stamping die and method for easy feeding, relating to the field of die processing technology. The die includes a base and a turntable disposed above it. Multiple arms are arrayed on the outer side of the turntable, and each arm has a movable seat at its outer end. The upper end of the movable seat has a rolling support surface for placing the workpiece. The turntable is connected to a switching drive for rotating it. The processing position is changed by switching the drive to facilitate feeding. A forming cavity is provided at the middle of the upper end of each movable seat. The forming cavity has an unloading component for ejecting the formed part. This invention is designed to meet existing needs. It can pre-position the workpiece to be stamped without the need for manual locking by the operator, which facilitates feeding. Furthermore, during stamping, vertical stamping can be performed first, followed by horizontal extrusion under the action of a horizontal pushing component, further improving the forming quality.

Description

Technical Field

[0001] This invention relates to the field of mold processing technology, specifically to a stamping mold and method that facilitates material feeding. Background Technology

[0002] The current large progressive stamping dies are generally over 1000mm in size. Due to the large size of the dies, the size of the template also needs to be increased accordingly. Even if the processing accuracy of the template can be guaranteed, the accuracy of the template will still be significantly affected during final assembly due to factors such as template deformation, causing difficulties in subsequent assembly. Most parts will have springback after stamping, so existing equipment will apply a side extrusion forming operation after downward extrusion forming to assist in the final shaping and reduce springback. However, the side pressure of existing stamping dies requires additional stamping structures and multiple processes, which is not conducive to improving processing efficiency. In addition, the stamped workpiece is easy to get stuck inside the die, making it difficult to remove and unloading.

[0003] Based on this, a stamping die and method for easy feeding are now provided, which can eliminate the drawbacks of existing equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping die and method that facilitates feeding, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A stamping die for easy feeding includes a base and a turntable mounted on it. Multiple arms are arrayed on the outer side of the turntable, each arm having a movable seat at its outer end. The movable seat has a rolling support surface for placing the workpiece. The turntable is connected to a switching drive unit for rotating it, allowing the processing position to be changed for easier feeding. Each movable seat has a forming cavity at its upper center, containing an unloading component for ejecting the formed part. A mounting bracket is located at the left end of the base, with a first extrusion push rod at its upper end. The output end of the first extrusion push rod has a forming upper die that cooperates with the forming cavity. The forming upper die can perform downward and side-pressing actions. A positioning clamping group for pre-positioning the workpiece is located on the upper surface of the movable seat where the first extrusion push rod is located.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In one alternative embodiment: the forming upper die includes a stamping push rod connected to the output end of the first extrusion push rod, the stamping push rod is provided with a pressing unit for pressing the workpiece, the lower end of the stamping push rod is provided with a central pressing block, and auxiliary pressing blocks are symmetrically provided on both sides of the central pressing block. The auxiliary pressing blocks and the central pressing block are connected by a transverse telescopic member. The side of the auxiliary pressing block facing the central pressing block is provided with a reset cavity, and the reset cavity is provided with a transverse pushing member for moving the auxiliary pressing block away from the central pressing block.

[0009] In one alternative: the pressing unit includes a sliding frame slidably mounted on the stamping push rod, the sliding frame being connected to a side plate on the stamping push rod via a first spring, and an auxiliary pressure plate at the lower end of the sliding frame for pressing the upper surface of the workpiece, and a pressure roller rotatably mounted at the lower end of the auxiliary pressure plate.

[0010] In one alternative embodiment: the lateral pushing member includes a wheel plate disposed outside the central pressure block, the end of the wheel plate being rotatably provided with a pressure wheel, the bottom of the reset cavity being provided with a pressure wedge block that presses against the surface of the pressure wheel, the central pressure block being provided with a buffer cavity in the middle, the upper end of the buffer cavity being provided with a stamping sliding hole that cooperates with a stamping push rod, the lower end of the stamping push rod being connected to the bottom of the buffer cavity through a reset spring, and the central pressure block being provided with vertical side holes on both sides to facilitate the wheel plate to pass through.

[0011] In one alternative: the lateral telescopic member includes a horizontal guide rod disposed at the outer end of the central pressure block, the horizontal guide rod being slidably disposed with a horizontal guide rod on the auxiliary pressure block, and a second spring connected to the central pressure block being provided in the reset cavity.

[0012] In one alternative: the unloading component includes a piston block disposed in the forming cavity, a piston push rod is provided at the middle position of the lower end of the piston block, the lower end of the piston push rod passes through a sliding perforation at the bottom of the movable seat, a pressure roller is rotatably provided on the outer side of the lower end of the piston push rod, and a rolling support surface corresponding to the position of the pressure roller is provided on the right side of the base.

[0013] In one alternative: a collection box for collecting impurities is provided at the upper right end of the base, and a horizontally arranged unloading baffle is provided above the collection box. The unloading baffle is used to send the workpiece on the surface of the movable seat into the collection box.

[0014] In one alternative embodiment: the switching drive component includes a rotating column disposed at the lower end of the turntable, the lower end of the rotating column being rotatably connected to the upper end of the base, a driven gear being coaxially disposed on the rotating column, the driven gear meshing with a drive gear, and the drive gear being disposed at the output end of the drive motor.

[0015] In one alternative: the rolling support surface includes multiple spherical cavities, each spherical cavity containing a support ball, and the multiple support balls constitute a support surface for supporting the workpiece.

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

[0017] 1. This invention is designed to meet existing needs. It can pre-position the workpiece to be stamped without the need for manual locking by the operator, which facilitates material loading. Furthermore, during the stamping process, vertical stamping can be performed first, followed by lateral extrusion under the action of the lateral pushing component, which further improves the forming quality.

[0018] 2. In this invention, both the upper and lower end faces of the workpiece undergo rolling friction, resulting in low wear on the workpiece surface during forming and ensuring the quality of the forming process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one side of the invention.

[0020] Figure 2 This is a schematic diagram of the structure on the other side of the present invention.

[0021] Figure 3 This is a schematic diagram of the bottom structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the internal structure of the central pressure block of the present invention.

[0023] Figure 5 This is a schematic diagram of the wheel plate structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the positioning clamp assembly structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the first clamping rod structure of the present invention.

[0026] Reference numerals in the attached drawings: Base 11, Collection box 12, Unloading baffle 13, Turntable 14, Auxiliary pressure plate 15, Sliding frame 16, First spring 17, First extrusion push rod 18, Mounting frame 19, Positioning clamp 20, Rolling support surface 21, Movable seat 22, Forming cavity 23, Piston push rod 24, Pressure roller 25, Piston block 26, Drive gear 27, Drive motor 28, Driven gear 29, Rotating column 30, Protrusion block 31, Horizontal guide rod 32, Stamping push rod 33, Center pressure block 34, Second spring 35, Horizontal guide rod 36, Reset cavity 37, Auxiliary pressure block 38, Pressing roller 39, Pressing wedge 40, Wheel plate 41, Buffer cavity 42, Reset spring 43, Vertical side hole 44;

[0027] 51. Traction rod, 52. Traction rope, 53. Sliding block, 54. First clamping rod, 55. Second clamping rod, 56. Centering clamp, 57. Expansion spring, 58. Intermediate rope, 59. Double-headed cylinder. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-7 As shown, a stamping die for easy feeding includes a base 11 and a turntable 14 disposed above it. Multiple machine arms are arranged in an array on the outer side of the turntable 14. Each machine arm has a movable seat 22 at its outer end. The upper end of the movable seat 22 is provided with a rolling support surface 21 for placing the workpiece. The turntable 14 is connected to a switching drive component for rotating it. The processing position can be changed by switching the drive component to facilitate feeding. A forming cavity 23 is provided at the middle position of the upper end of each movable seat 22. The forming cavity 23 is provided with a discharge component for ejecting the formed part. A mounting bracket 19 is provided at the left end of the base 11. A first extrusion push rod 18 is provided at the upper end of the mounting bracket 19. The output end of the first extrusion push rod 18 is provided with a forming upper die that cooperates with the forming cavity 23. The forming upper die can perform downward and side pressure actions to ensure the forming effect. A positioning clamping group 20 for pre-positioning the workpiece is provided at the upper end of the movable seat 22 where the first extrusion push rod 18 is located, which can ensure its initial forming position.

[0030] The positioning clamping assembly 20 includes two first clamping rods 54, each with its upper end connected to a lifting rod. The upper end of the lifting rod is connected to the output end of a double-headed cylinder 59, which is located on the side of the mounting frame 19. Each first clamping rod 54 has a clamping groove, with a sliding block 53 slidably mounted at each end of the groove. The two sliding blocks 53 are connected by an expansion spring 57, which presses against the ends of the clamping groove under the action of the expansion spring. The two sliding blocks 53 are connected by a traction rope 52, with the middle of the traction rope 52 connected to one end of a middle rope 58. The other end of the intermediate rope 58 is connected to the traction vertical rod 51. The upper end of the traction vertical rod 51 is connected to the mounting frame 19. Each sliding block 53 is provided with a second clamping rod 55. The end of the second clamping rod 55 is provided with a centering clamping plate 56 for clamping the workpiece. First, the two first clamping rods 54 are driven by the double-headed cylinder 59 to press the part tightly and center the part in one direction. As the pressing proceeds, the intermediate rope 58 will generate a traction force on the middle position of the traction rope 52, so that the two second clamping rods 55 move closer to each other, thereby further centering the workpiece and positioning the workpiece in the desired forming position.

[0031] The upper forming die includes a stamping push rod 33 connected to the output end of the first extrusion push rod 18. The stamping push rod 33 is provided with a pressing unit for pressing the workpiece. A central pressing block 34 is provided at the lower end of the stamping push rod 33. An auxiliary pressing block 38 is symmetrically provided on both sides of the central pressing block 34. The auxiliary pressing block 38 and the central pressing block 34 are connected by a transverse telescopic member. A reset cavity 37 is provided on the side of the auxiliary pressing block 38 facing the central pressing block 34. A transverse pushing member is provided in the reset cavity 37 for moving the auxiliary pressing block 38 away from the central pressing block 34. The transverse pushing member makes the auxiliary pressing block 38 press tightly against the inner wall of the workpiece, which effectively improves the forming quality.

[0032] The pressing unit includes a sliding frame 16 slidably mounted on the stamping push rod 33. The sliding frame 16 is connected to the side plate on the stamping push rod 33 via a first spring 17. The lower end of the sliding frame 16 is provided with an auxiliary pressure plate 15 that presses the upper surface of the workpiece tightly. The lower end of the auxiliary pressure plate 15 is provided with a pressure roller. The pressure roller and the workpiece are subjected to rolling friction to reduce friction loss.

[0033] The lateral pushing component includes a wheel plate 41 disposed outside the central pressure block 34. A pressure wheel 39 is rotatably disposed at the end of the wheel plate 41. A pressure wedge 40 is disposed at the bottom of the reset cavity 37, which is in contact with the surface of the pressure wheel 39. A buffer cavity 42 is disposed in the middle of the central pressure block 34. A punching sliding hole is disposed at the upper end of the buffer cavity 42, which is in cooperation with the punching push rod 33. The lower end of the punching push rod 33 is connected to the bottom of the buffer cavity 42 by a reset spring 43. Vertical side holes 44 are disposed on both sides of the central pressure block 34 to facilitate the passage of the wheel plate 41. After the vertical extrusion is completed and the workpiece is finally formed, the central pressure block 34 can no longer move downward, while the punching push rod 33 continues to move downward. At this time, the surface of the pressure wheel 39 and the pressure wedge 40 are in cooperation. Under the guidance of the inclined plane, the auxiliary pressure block 38 will move laterally along the horizontal guide rod 32, thereby laterally extruding and forming the workpiece. Initially, the reset spring 43 will not deform.

[0034] The lateral telescopic component includes a horizontal guide rod 32 disposed at the outer end of the central pressure block 34. The horizontal guide rod 32 is slidably disposed with a horizontal guide rod 36 on the auxiliary pressure block 38. The reset cavity 37 is provided with a second spring 35 connected to the central pressure block 34. Under the action of the second spring 35, the auxiliary pressure block 38 is tightly pressed against the surface of the central pressure block 34. During the initial compression, the second spring 35 will not deform.

[0035] The unloading component includes a piston block 26 disposed in the forming cavity 23. A piston push rod 24 is provided at the middle position of the lower end of the piston block 26. The lower end of the piston push rod 24 passes through a sliding through hole at the bottom of the movable seat 22. A pressure roller 25 is rotatably provided on the outer side of the lower end of the piston push rod 24. A rolling support surface 21 corresponding to the position of the pressure roller 25 is provided on the right side of the base 11. When the pressure roller 25 moves to the position of the protrusion 31, the piston push rod 24 will drive the piston block 26 to slide upward under the support of the protrusion 31, thereby pushing the workpiece out, which facilitates unloading and avoids the problem of jamming.

[0036] The upper right end of the base 11 is provided with a collection box 12 for collecting impurities. Above the collection box 12 is a horizontally arranged unloading baffle 13. The unloading baffle 13 is used to send the workpiece on the surface of the movable seat 22 into the collection box 12 without manual material handling, thus avoiding injury. The unloading baffle 13 is connected to the base 11 through a positioning link. The middle position of the protrusion 31 is horizontal, and the two ends are guide plates.

[0037] The switching drive includes a rotating column 30 disposed at the lower end of the turntable 14. The lower end of the rotating column 30 is rotatably connected to the upper end of the base 11. A driven gear 29 is coaxially disposed on the rotating column 30. The driven gear 29 meshes with a drive gear 27. The drive gear 27 is disposed at the output end of the drive motor 28. The drive motor 28 drives the drive gear 27 to rotate. The drive gear 27 and the driven gear 29 cooperate to drive the rotating column 30 to rotate, thereby providing power for the switching position.

[0038] The rolling support surface 21 includes multiple spherical cavities, each of which is fitted with a support ball. The multiple support balls constitute a support surface for supporting the workpiece. In this way, during extrusion molding, the wear between the movable seat 22 and the lower end face of the workpiece will be reduced, which helps to improve the molding quality.

[0039] The above embodiments disclose a stamping die that facilitates feeding. In actual use, the part is placed on the movable seat 22, and the turntable 14 is rotated by switching the drive component to transfer the part to be formed to below the first extrusion push rod 18. Then, the movable seat 22 locks the initial position of the part. Subsequently, the first extrusion push rod 18 drives the upper forming die to move downward, thereby matching with the forming cavity 23 to complete the forming process. After the vertical extrusion is completed and the workpiece is finally formed, the central pressure block 34 can no longer move downward. At this time, the pressure block... The pressure roller 39 and the surface of the pressure wedge block 40 cooperate. Under the guidance of the inclined plane, the auxiliary pressure block 38 will move laterally along the horizontal guide rod 32, thereby laterally extruding and forming the workpiece. After forming, the turntable 14 is driven to rotate by switching the drive component. When it rotates to the unloading position, the piston push rod 24 will drive the piston block 26 to slide upward under the push of the protrusion block 31, thereby pushing the workpiece out, which facilitates unloading and avoids the problem of jamming. Under the guidance of the unloading baffle 13, the workpiece will be guided into the collection box 12 to complete the collection.

[0040] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A stamping die for easy feeding, comprising a base (11) and a turntable (14) disposed above it, wherein multiple machine arms are arranged in a straight line on the outer side of the turntable (14), and each machine arm is provided with a movable seat (22) at its outer end, wherein the upper end of the movable seat (22) is provided with a rolling support surface (21) for placing workpieces. Its features are, The turntable (14) is connected to a switching drive for rotating it. The processing position is changed by switching the drive to facilitate feeding. Each movable seat (22) has a forming cavity (23) at the middle of its upper end. The forming cavity (23) has a discharge component for pushing out the formed part. The base (11) has a mounting bracket (19) at its left end. The mounting bracket (19) has a first extrusion push rod (18) at its upper end. The output end of the first extrusion push rod (18) has a forming upper die that cooperates with the forming cavity (23). The forming upper die can perform downward and side pressure actions. The upper surface of the movable seat (22) where the first extrusion push rod (18) is located has a positioning clamp (20) for pre-positioning the workpiece. The upper forming die includes a stamping push rod (33) connected to the output end of the first extrusion push rod (18). The stamping push rod (33) is provided with a pressing unit for pressing the workpiece. The lower end of the stamping push rod (33) is provided with a central pressure block (34). The central pressure block (34) is symmetrically provided with auxiliary pressure blocks (38) on both sides. The auxiliary pressure blocks (38) and the central pressure block (34) are connected by a transverse telescopic member. The auxiliary pressure block (38) is provided with a reset cavity (37) on the side facing the central pressure block (34). The reset cavity (37) is provided with a transverse pushing member for moving the auxiliary pressure block (38) away from the central pressure block (34). The transverse pusher includes a wheel plate (41) disposed on the outside of the central pressure block (34). A pressure wheel (39) is rotatably disposed at the end of the wheel plate (41). A pressure wedge (40) is disposed at the bottom of the reset cavity (37) and presses against the surface of the pressure wheel (39). A buffer cavity (42) is disposed in the middle of the central pressure block (34). A punching sliding hole is disposed at the upper end of the buffer cavity (42) and cooperates with the punching push rod (33). The lower end of the punching push rod (33) is connected to the bottom of the buffer cavity (42) by a reset spring (43). Vertical side holes (44) are disposed on both sides of the central pressure block (34) to facilitate the passage of the wheel plate (41). The unloading component includes a piston block (26) disposed in the forming cavity (23). A piston push rod (24) is provided at the middle position of the lower end of the piston block (26). The lower end of the piston push rod (24) passes through a sliding through hole at the bottom of the movable seat (22). A pressure roller (25) is rotatably provided on the outer side of the lower end of the piston push rod (24). A rolling support surface (21) corresponding to the position of the pressure roller (25) is provided on the right side of the base (11).

2. The stamping die for easy feeding according to claim 1, characterized in that, The pressing unit includes a sliding frame (16) slidably mounted on the stamping push rod (33). The sliding frame (16) is connected to the side plate on the stamping push rod (33) via a first spring (17). The lower end of the sliding frame (16) is provided with an auxiliary pressure plate (15) that presses the upper surface of the workpiece tightly. The lower end of the auxiliary pressure plate (15) is provided with a pressure roller.

3. The stamping die for easy feeding according to claim 1, characterized in that, The lateral telescopic component includes a horizontal guide rod (32) disposed at the outer end of the central pressure block (34). The horizontal guide rod (32) is slidably disposed with a horizontal guide rod (36) on the auxiliary pressure block (38). The reset cavity (37) is provided with a second spring (35) connected to the central pressure block (34).

4. The stamping die for easy feeding according to claim 1, characterized in that, The upper right end of the base (11) is provided with a collection box (12) for collecting impurities. Above the collection box (12) is a horizontally arranged unloading baffle (13). The unloading baffle (13) is used to send the workpiece on the surface of the movable seat (22) into the collection box (12).

5. The stamping die for easy feeding according to claim 1, characterized in that, The switching drive includes a rotating column (30) located at the lower end of the turntable (14). The lower end of the rotating column (30) is rotatably connected to the upper end of the base (11). A driven gear (29) is coaxially mounted on the rotating column (30). The driven gear (29) meshes with the drive gear (27). The drive gear (27) is located at the output end of the drive motor (28).

6. A method of using a stamping die with convenient feeding as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Place the part on the movable seat (22), and drive the turntable (14) to rotate by switching the drive component. Transfer the part to be formed to the bottom of the first extrusion push rod (18), and then lock the initial position of the part by the movable seat (22). Step 2: Then, the first extrusion push rod (18) drives the upper forming die to move downward, thereby matching the forming cavity (23) to complete the forming process. After the vertical extrusion is completed and the workpiece is finally formed, the central pressure block (34) cannot continue to move downward. At this time, the surface of the pressure roller (39) and the pressure wedge (40) cooperate. Under the guidance of the inclined plane, the auxiliary pressure block (38) will move laterally along the horizontal guide rod (32) to laterally extrude and form the workpiece. Step 3: After molding is completed, the turntable (14) is rotated by switching the drive component. When it rotates to the unloading position, the piston rod (24) will drive the piston block (26) to slide upward under the push of the protrusion block (31), thereby pushing the workpiece out for easy unloading.

Images