Metal stamping equipment

Abstract

The invention relates to the technical field of stamping equipment, and specifically discloses a metal part stamping equipment, comprising a frame, a stamping table on the frame, a stamping assembly comprising a stamping head and a driving member driving the stamping head to move back and forth up and down, a hammering mechanism comprising a rotating shaft, a rotating shaft driving assembly, a cam and a hammering member, the rotating shaft driving assembly is used to drive the rotating shaft to rotate, the cam sleeve is arranged on the outer side of the rotating shaft, the upper end of the hammering member contacts the cam, and the lower end contacts the stamping head, and the oiling mechanism comprises a sponge brush, and the sponge brush has a horizontal state and a vertical state; during the stamping process, the present invention can drive the cam to rotate by rotating the rotating shaft, and under the cooperation of the cam and the hammering member, the stamping head is repeatedly hammered to prevent the workpiece from rebounding, and in addition, during the downward movement of the stamping head, the lower surface and the outer peripheral side of the stamping head can be oiled by rotating the sponge brush and switching the state of the sponge brush.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to a metal part stamping equipment. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to metal parts to cause them to undergo plastic deformation or separation, thereby obtaining a workpiece of the desired shape and size.

[0003] The patent document with the announcement number CN116274671B discloses a stamping die for processing metal sheets, including a mother die, a placement groove is opened in the middle of the mother die, a first compression spring is fixedly connected in the middle of the placement groove, a slide groove is opened in the middle of the mother die on the upper side of the placement groove, a support plate is slidably connected in the middle of the slide groove, both left and right parts of the upper end of the mother die are fixedly connected to linear modules, the right end of the mother die is fixedly connected to a limited position structure, the left end of the mother die is fixedly connected to a blocking structure, a sub-die is installed at the output end of the linear module, the sub-die includes a transfer block, and the transfer A punch is fixedly connected to the lower end of the block, a rectangular groove is opened in the middle of the punch, a shell is slidably connected to the middle of the rectangular groove, a plurality of snap grooves are equidistantly opened at the left and right ends of the shell, an M-shaped sponge is fixedly connected to the middle of the snap groove. When in use, the sub-mold moves downward so that when the bottom of the shell contacts the workpiece, the workpiece pushes the shell upward, and at the same time, the two sides of the M-shaped sponge are squeezed by the punch, so that the stamping oil absorbed in the M-shaped sponge is squeezed out and attached to the lower surface of the punch, thereby realizing automatic application of the stamping oil by the sub-mold and reducing the workload of the staff.

[0004] However, when the above technical solution is used for stamping, if the punch head is immediately separated from the workpiece after stamping, it is easy to cause the workpiece to rebound. In order to prevent the workpiece from rebounding, most related technologies adopt the method of extending the contact time between the punch head and the workpiece to improve the stamping forming accuracy, but this method will reduce the stamping efficiency. In addition, when applying the stamping oil, the M-shaped sponge can only apply oil to the lower surface of the punch head, so that during the stamping process, the side wall of the punch head lacks lubrication, and friction with the workpiece occurs, causing wear. Summary of the invention

[0005] The present invention provides a metal part stamping equipment, aiming to solve the problem in the related technology that after the stamping is completed, the punch head immediately separates from the workpiece, causing the workpiece to rebound. If the contact time between the punch head and the workpiece is extended to avoid the workpiece rebound, the stamping efficiency will be affected. In addition, the side wall of the punch head is not oiled during the stamping process, resulting in a lack of lubrication on the side wall of the punch head, which rubs against the workpiece and causes wear.

[0006] A metal part stamping device of the present invention comprises a frame, a stamping table is provided on the frame, a stamping die is provided on the stamping table, and further comprises:

[0007] The punching assembly includes a support frame, a punching head, and a driving member for driving the support frame to reciprocate up and down. The punching head is arranged at the lower end of the support frame and can move up and down synchronously with the support frame;

[0008] The hammering mechanism includes a rotating shaft, a rotating shaft driving assembly, a cam and a hammering piece. The rotating shaft is rotatably arranged on the support frame. The rotating shaft driving assembly is used to drive the rotating shaft to rotate. The cam sleeve is arranged on the outer side of the rotating shaft. The upper end of the hammering piece contacts the cam, and the lower end of the hammering piece contacts the upper end of the punch head. The hammering piece is provided with a spring 2 for driving it to reset.

[0009] The oiling mechanism includes a sponge brush, a first drive assembly and a second drive assembly. The sponge brush has a horizontal state and a vertical state. When in the horizontal state, the sponge brush can oil the lower surface of the punch head. When in the vertical state, the sponge brush can oil the outer peripheral side of the punch head. The first drive assembly is used to drive the sponge brush to rotate around the central axis of the punch head, and the second drive assembly is used to drive the sponge brush to switch between the horizontal state and the vertical state.

[0010] During the downward movement of the punch head, the shaft is rotated through the shaft driving assembly, and the cam is driven to rotate, so that the cam and the hammering part cooperate to push the hammering part to repeatedly hammer the punch head to prevent the workpiece from rebounding; in addition, during the downward movement of the punch head, the first driving assembly and the second driving assembly can cooperate to make the sponge brush first be in a horizontal state to oil the lower surface of the punch head, and then switch to a vertical state to oil the side wall of the punch head, so that when the punch head punches the workpiece, the lower surface and side wall of the punch head are coated with stamping oil, thereby effectively avoiding friction and wear between the punch head and the workpiece.

[0011] Preferably, a sleeve is provided on the outer side of the punching head along the longitudinal sliding sleeve, and a spring 1 is connected between the upper end of the punching head and the sleeve, a shaft sleeve is rotatably provided on the upper end of the sleeve, and the shaft sleeve is rotatably connected to the support frame, and the hammering part includes a hammer head, a connecting rod and a contact plate, the connecting rod is provided on the inner side of the shaft sleeve along the longitudinal sliding, and the lower end passes through the sleeve and is connected to the sleeve along the longitudinal sliding, the hammer head is provided at the lower end of the connecting rod and contacts with the punching head, the contact plate is provided at the upper end of the connecting rod and contacts with the cam, and a spring 2 is provided between the lower end of the contact plate and the sleeve.

[0012] Preferably, the shaft driving assembly includes a rack, a gear 1, a torsion spring 1, a one-way bearing and an ejection structure, the rack is arranged on the frame along the height direction of the frame, the gear 1 sliding sleeve is arranged on the outer side of the shaft, and the two can rotate synchronously, the gear 1 and the rack can be meshed, a torsion spring set is arranged on the outer side of the shaft, and the two ends are respectively connected to the shaft and the support frame, the cam is rotatably connected to the shaft through the one-way bearing, and the ejection structure is used to push the gear 1 to move along the axial direction of the shaft, so that the gear 1 and the rack are disengaged.

[0013] During the downward movement of the punch head, the cooperation between the rack and gear one drives the rotating shaft to rotate, and the torsion spring one accumulates force. During the stamping process, the pushing structure pushes gear one to move, so that gear one disengages from the rack. At this time, the accumulated force of torsion spring one is released, driving the rotating shaft to rotate in the opposite direction at high speed, and driving the cam to rotate at high speed, so that with the cooperation of the cam and the hammering part, the hammering part is pushed to repeatedly hammer the punch head.

[0014] Preferably, the one-way bearing includes an inner ring and an outer ring, the inner ring is fixedly connected to the rotating shaft, and the outer ring is fixedly connected to the cam, so that when the rotating shaft rotates forward, the cam does not rotate, and when the rotating shaft rotates reversely, the cam rotates synchronously with the rotating shaft.

[0015] Preferably, a mounting plate is provided on the frame, and the mounting plate is provided on the side of the rack away from the punching head. The pushing structure includes a contact ring and a contact block. The contact ring sliding sleeve is provided on the outer side of the rotating shaft and cooperates with the rotating shaft to stop rotation. Gear 1 is fixedly connected to the contact ring, and a baffle 1 is provided on the outer fixed sleeve of the rotating shaft. A spring 3 is provided between gear 1 and baffle 1. A telescopic rod 1 is connected between the lower end of the contact block and the mounting plate, and a spring 4 is provided on the outer sleeve of the telescopic rod 1. An inclined surface is provided on the upper end of the contact block, and the inclined surface gradually tilts downward toward the direction close to the punching head. When the contact ring moves downward, it can contact the inclined surface on the contact block.

[0016] As the contact ring moves downward with the shaft, it contacts the contact block, and under the action of the inclined surface on the contact block, the contact ring moves along the axial direction of the shaft, while driving gear one to move, so that gear one is out of mesh with the rack.

[0017] Preferably, a baffle plate 2 is provided on the side of the rack close to the punching head, and during the upward movement of the gear 1, the baffle plate 2 can block the resetting of the gear 1, so that the gear 1 and the rack are respectively located on both sides of the baffle plate 2.

[0018] When gear one moves upward with the rotating shaft, gear one is blocked by baffle two and cannot be reset, that is, gear one and the rack are out of mesh, so that gear one and the rotating shaft will not rotate, that is, the cam will not rotate, so that the punch head will not vibrate up and down due to the force of the hammer part when it moves upward.

[0019] Preferably, the first driving assembly includes a ring and a driving structure. A spiral groove is opened on the outer peripheral side of the sleeve. The ring is threadedly connected to the sleeve through the spiral groove. The sponge brush can rotate synchronously with the ring. The driving structure is used to drive the ring to rotate.

[0020] Preferably, the driving structure includes a connecting rod, a guide rod, bevel gear 1, bevel gear 2, gear 2 and gear 3. Bevel gear 1 is fixedly sleeved on the outside of the rotating shaft, gear 3 is fixedly sleeved on the outside of the sleeve, bevel gear 2 and gear 2 are both rotatably arranged on the support frame, and bevel gear 2 and gear 2 are coaxially arranged, bevel gear 1 and bevel gear 2 are meshingly connected, gear 2 and gear 3 are meshingly connected, the connecting rod is fixedly sleeved on the outside of the sleeve, the guide rod is longitudinally arranged at the lower end of the connecting rod, and a guide groove is formed on the guide rod along its length direction, and a ring is longitudinally slidably arranged in the guide groove.

[0021] Preferably, the second driving assembly includes telescopic rod 2, an oiling roller, a block and a pull rope, telescopic rod 2 includes an outer rod and an inner rod, the outer rod is longitudinally arranged at the lower end of the ring, the upper end of the inner rod is slidably arranged in the outer rod, and a spring five is connected between the outer rod and the ring, the lower end of the inner rod is rotatably connected to the oiling roller through torsion spring 2, the sponge brush sleeve is arranged on the outside of the oiling roller, the block is horizontally slidably arranged at the lower end of the inner rod, and a spring six is ​​connected between the inner rod so that the block can extend outward and prevent the oiling roller from rotating, both the outer rod and the inner rod are provided with space for the pull rope to pass through, the lower end of the inner rod is provided with a rod member, one end of the pull rope is connected to the ring, and the other end passes around the rod member and is connected to the block.

[0022] Preferably, an oil storage groove is provided along the circumferential direction on the outer peripheral side of the punch head near the lower end.

[0023] After the sponge brush applies oil to the side wall of the punch head, if there is too much oil, the stamping oil will flow into the oil storage tank for collection, and in the process of repeated hammering of the punch head by the hammering part, the stamping oil in the oil storage tank will be shaken out, and the corners of the punch head and the workpiece will be replenished with oil to prevent wear of the corners of the punch head and the workpiece during repeated hammering.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention is provided with a hammering mechanism. After the stamping is completed, the shaft can be rotated through the shaft driving assembly, and the cam can be driven to rotate, so that the hammering part can be pushed to repeatedly hammer the punching head through the cooperation of the cam and the hammering part to prevent the workpiece from rebounding.

[0026] 2. The present invention is provided with an oiling mechanism. During the downward movement of the punch head, the first drive assembly and the second drive assembly can cooperate to make the sponge brush first be in a horizontal state to oil the lower surface of the punch head, and then switch to a vertical state to oil the side wall of the punch head. When the punch head punches the workpiece, the lower surface and side wall of the punch head are coated with stamping oil, thereby effectively avoiding friction and wear between the punch head and the workpiece.

[0027] 3. The present invention provides an oil storage tank at the lower end of the punch head, so that when the sponge brush applies oil to the side wall of the punch head, if the amount of oil is too much, the stamping oil will slide along the side wall of the punch head into the oil storage tank, and in the process of repeated hammering of the punch head, the stamping oil in the oil storage tank can be shaken out to replenish oil at the corners of the workpiece, thereby preventing the corners of the punch head and the workpiece from being worn during repeated hammering. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a front view of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the hammering mechanism of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the rotating shaft driving assembly and the ejection structure of the present invention.

[0032] Figure 5 It is a schematic diagram of the assembly structure of the punch head, the hammering part and the sleeve of the present invention.

[0033] Figure 6 The present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0034] Figure 7 It is a structural schematic diagram of the oiling mechanism of the present invention.

[0035] Figure 8 The present invention Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0036] Reference numerals:

[0037] 1. Frame; 11. Punching table; 12. Punching die; 13. Support frame; 131. Support rod; 14. Punching head; 141. Spring 1; 142. Oil storage tank; 15. Driving member; 16. Mounting plate; 21. Rotating shaft; 211. Baffle 1; 22. Cam; 23. Hammering member; 231. Hammer head; 232. Connecting rod; 233. Contact plate; 234. Spring 2; 24. One-way bearing; 25. Sleeve; 251. Spiral groove; 26. Bushing; 31. Rack; 32. Gear 1; 33. Torsion spring 1 ; 34. Contact ring; 35. Contact block; 351. Telescopic rod one; 36. Spring three; 37. Spring four; 38. Baffle two; 41. Sponge brush; 42. Ring; 43. Connecting rod; 44. Guide rod; 441. Guide groove; 45. Bevel gear one; 46. Bevel gear two; 47. Gear two; 48. Gear three; 51. Telescopic rod two; 511. Outer rod; 512. Inner rod; 52. Oiling roller; 53. Block; 54. Pull rope; 55. Spring five; 56. Torsion spring two; 57. Spring six; 58. Rod. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] like Figures 1 to 8 As shown, a metal part stamping device of the present invention includes a frame 1, a stamping assembly, a hammering mechanism and an oiling mechanism.

[0040] The frame 1 is provided with a stamping table 11, on which a stamping die 12 is arranged. The stamping assembly includes a support frame 13, a stamping head 14, and a driving member 15 for driving the support frame 13 to move reciprocally up and down. Specifically, the driving member 15 can be set as a cylinder, and the stamping head 14 is arranged at the lower end of the support frame 13, and can move up and down synchronously with the support frame 13. When in use, the workpiece to be stamped is placed on the stamping table 11, and then the driving member 15 is started to drive the support frame 13 to move downward, and drive the stamping head 14 to move downward synchronously to stamp the workpiece.

[0041] The hammering mechanism includes a rotating shaft 21, a rotating shaft driving assembly, a cam 22 and a hammering piece 23. The rotating shaft 21 is rotatably arranged on the support frame 13. The rotating shaft driving assembly is used to drive the rotating shaft 21 to rotate. The cam 22 is sleeved on the outer side of the rotating shaft 21. The upper end of the hammering piece 23 contacts the cam 22, and the lower end of the hammering piece 23 contacts the upper end of the punching head 14. The hammering piece 23 is provided with a spring 234 for driving it to reset.

[0042] A sleeve 25 is provided on the outer side of the punching head 14 along the longitudinal sliding sleeve, and a spring 141 is connected between the upper end of the punching head 14 and the sleeve 25. A sleeve 26 is rotatably provided on the upper end of the sleeve 25. A support rod 131 is provided between the sleeve 26 and the support frame 13. One end of the support rod 131 is fixedly connected to the support frame 13, and the other end is rotatably connected to the sleeve 26. The hammering member 23 includes a hammer head 231, a connecting rod 232 and a contact plate 233. The connecting rod 232 is provided on the inner side of the sleeve 26 along the longitudinal sliding, and the lower end passes through the sleeve 25 and is slidably connected to the sleeve 25 along the longitudinal direction. The hammer head 231 is provided at the lower end of the connecting rod 232 and contacts with the punching head 14. The contact plate 233 is provided at the upper end of the connecting rod 232 and contacts with the cam 22. A spring 234 is provided between the lower end of the contact plate 233 and the sleeve 25.

[0043] Specifically, when the driving member 15 is started to drive the support frame 13 to move downward, the support rod 131 will drive the sleeve 26 to move downward synchronously, and drive the sleeve 25 rotatably connected to the sleeve 26 to move downward synchronously, thereby driving the punch head 14 slidably arranged in the sleeve 25 to move downward, and punch the workpiece placed on the punching table 11. During the punching process, the shaft 21 rotates under the action of the shaft driving assembly, and drives the cam 22 to rotate synchronously with the shaft 21. In the initial state, the tip of the cam 22 contacts the contact plate 233 and squeezes the contact plate 233, so that the spring 234 is in a compressed state and the spring 141 is in a stretched state, so that the cam 22 rotates during the process of rotation. When the tip of the cam 22 is facing upward, the contact plate 233 can move upward under the action of the spring 234, and drive the connecting rod 232 and the hammer head 231 to move upward synchronously. At the same time, the punch head 14 can move upward under the action of the spring 141. When the tip of the cam 22 is facing downward, the tip of the cam 22 can squeeze the hammering member 23 to move downward, and make the spring 234 compress and accumulate force again. When the hammering member 23 moves downward, it can push the punch head 14 to move downward synchronously to punch the workpiece again, and make the spring 141 stretch and accumulate force again, so that during the high-speed rotation of the cam 22, the hammering member 23 can be pushed to hammer the punch head 14 repeatedly to prevent the workpiece from rebounding.

[0044] In some embodiments, the shaft driving assembly includes a rack 31, a gear 32, a torsion spring 33, a one-way bearing 24 and a push-out structure, the rack 31 is arranged on the frame 1 along the height direction of the frame 1, the gear 32 is slidably sleeved on the outer side of the shaft 21, and the two can rotate synchronously, the gear 32 and the rack 31 can mesh, the torsion spring 33 is sleeved on the outer side of the shaft 21, and the two ends are respectively connected to the shaft 21 and the support frame 13, the cam 22 is rotatably connected to the shaft 21 through the one-way bearing 24, the one-way bearing 24 includes an inner ring and an outer ring, the inner ring is fixedly connected to the shaft 21, and the outer ring is fixedly connected to the cam 22, so that when the shaft 21 rotates forward, the cam 22 does not rotate, and when the shaft 21 reverses, the cam 22 rotates synchronously with the shaft 21, and the push-out structure is used to push the gear 32 to move along the axial direction of the shaft 21, so that the gear 32 and the rack 31 are disengaged.

[0045] Specifically, Figures 1 to 5 As shown, when the driving member 15 is started to drive the support frame 13 to move downward, it can drive the rotating shaft 21 to move synchronously, and drive the gear 32 sleeved on the rotating shaft 21 to move downward. At this time, through the meshing transmission between the gear 32 and the rack 31, the gear 32 can be driven to rotate, and the rotating shaft 21 can be driven to rotate forward. At this time, the cam 22 does not rotate. During the forward rotation of the rotating shaft 21, the torsion spring 33 twists to accumulate force. When the punch head 14 contacts the workpiece to punch the workpiece, the pushing structure pushes the gear 32 to move along the axial direction of the rotating shaft 21, so that the gear 32 and the rack 31 are out of mesh. At this time, the torsion spring 33 is released to accumulate force, driving the rotating shaft 21 to rotate in the opposite direction at high speed, and driving the cam 22 to rotate at high speed. During the process, when the tip of the cam 22 is facing upwards, the hammering piece 23 can move upwards under the action of the second spring 234, and the punching head 14 can move upwards under the action of the first spring 141. When the tip of the cam 22 is facing downwards, the tip of the cam 22 can squeeze the hammering piece 23 to move downward, and make the second spring 234 compress and accumulate force. When the hammering piece 23 moves downward, it can push the punching head 14 to move downward synchronously to punch the workpiece again, and make the spring 141 stretch and accumulate force, so that during the high-speed rotation of the cam 22, the hammering piece 23 can be pushed to hammer the punching head 14 repeatedly to avoid rebound of the workpiece. After completing the punching of the workpiece, the punching head 14 can be driven to move upward by the driving piece 15.

[0046] In some embodiments, a mounting plate 16 is provided on the frame 1, and the mounting plate 16 is provided on the side of the rack 31 away from the punch head 14. The pushing structure includes a contact ring 34 and a contact block 35. The contact ring 34 is slidably sleeved on the outer side of the rotating shaft 21 and cooperates with the rotating shaft 21 to stop rotation. The gear 1 32 is fixedly connected to the contact ring 34, and the outer fixed sleeve of the rotating shaft 21 is provided with a baffle 1 211. A spring 36 is provided between the gear 1 32 and the baffle 1 211. A telescopic rod 1 351 is connected between the lower end of the contact block 35 and the mounting plate 16, and a spring 4 37 is provided on the outer sleeve of the telescopic rod 1 351. The upper end of the contact block 35 is provided with an inclined surface, which gradually tilts downward in the direction close to the punch head 14. When the contact ring 34 moves downward, it can contact the inclined surface on the contact block 35.

[0047] Specifically, Figures 1 to 4 As shown, the driving member 15 drives the support frame 13 to move downward, and can drive the rotating shaft 21 to move downward synchronously, and drive the contact ring 34 sleeved on the rotating shaft 21 to move downward. When the contact ring 34 contacts the contact block 35, the contact block 35 is pressed by the contact ring 34 and moves downward with the contact ring 34, and the telescopic rod 1 351 is contracted, and the spring 4 37 is compressed to store force. When the contact block 35 moves downward for a certain distance, the contact ring 34 continues to move downward with the rotating shaft 21. At this time, the inclined surface on the contact block 35 can The contact ring 34 is moved along the axial direction of the rotating shaft 21 toward the direction close to the punch head 14, and the gear 1 32 is driven to move synchronously with the contact ring 34, so that the gear 1 32 is disengaged from the rack 31. At this time, the torsion spring 1 33 is released to reverse the rotating shaft 21. In the process of the gear 1 32 moving along the axial direction of the rotating shaft 21, the spring 36 is compressed to accumulate force, so that when the spring 36 is subsequently released, the gear 1 32 can move in the opposite direction along the axial direction of the rotating shaft 21, so that the gear 1 32 is meshed with the rack 31 again.

[0048] In some embodiments, a baffle 2 38 is provided on the side of the rack 31 close to the punch head 14. During the upward movement of the gear 1 32, the baffle 2 38 can block the resetting of the gear 1 32, so that the gear 1 32 and the rack 31 are respectively located on both sides of the baffle 2 38.

[0049] Specifically, Figures 2 to 4As shown, in the process that gear 1 32 and contact ring 34 move downward with rotating shaft 21, gear 1 32 is located on the side of baffle 2 38 away from punch head 14, at this time gear 1 32 and rack 31 are in meshing state, when contact ring 34 contacts contact block 35, contact ring 34 will move in the direction close to punch head 14 under the action of the inclined surface of the upper end of contact block 35, and drive gear 1 32 to move synchronously, because gear 1 32 is blocked by baffle 2 38 at this time, and cannot move in the direction close to punch head 14, that is, contact ring 34 cannot move, so that when contact ring 34 contacts contact block 35 and continues to move downward, it will first drive contact block 35 to move downward synchronously with contact ring 34, until gear 1 32 is free from the blockage of baffle 2 38, at this time, under the action of the inclined surface of contact block 35, contact ring 34 can move along the axial direction of rotating shaft 21 in the direction close to punch head 14, and drive gear 1 32 to move synchronously, so that gear 1 32 and rack 31 The gear 32 is disengaged from the meshing state. At this time, the gear 32 is located on the side of the baffle plate 238 close to the punch head 14. In the process of the gear 32 and the contact ring 34 moving upward with the rotating shaft 21, the contact block 35 can move upward to reset under the action of the spring four 37 accumulated force release, while the gear 32 is blocked by the baffle plate 23 and cannot reset until the rotating shaft 21 moves to the upper end of the frame 1 with the support frame 13. At this time, the gear 32 is disengaged from the baffle plate 23 and can move along the axial direction of the rotating shaft 21 away from the punch head 14 under the action of the spring three 36 accumulated force release, so that the gear 32 is meshed with the rack 31 again to complete the reset of the gear 32. Since the gear 32 and the rack 31 are disengaged during the upward movement of the rotating shaft 21, the gear 32 and the rotating shaft 21 will not rotate, that is, the cam 22 will not rotate, so that the punch head 14 will not be vibrated up and down by the force of the hammer 23 during the upward movement.

[0050] The oiling mechanism includes a sponge brush 41, a first drive assembly and a second drive assembly. The sponge brush 41 is provided in two, and both sponge brushes 41 have a horizontal state and a vertical state. When in the horizontal state, the sponge brush 41 can oil the bottom end of the punch head 14, and when in the vertical state, the sponge brush 41 can oil the outer peripheral side of the punch head 14. The first drive assembly is used to drive the sponge brush 41 to rotate around the central axis of the punch head 14, and the second drive assembly is used to drive the sponge brush 41 to switch between the horizontal state and the vertical state.

[0051] Specifically, Figures 1 to 8As shown, in the initial state, the two sponge brushes 41 are in a horizontal state and in contact with the lower surface of the punch head 14. In the process of the punch head 14 moving downward with the support frame 13, the sponge brush 41 can be driven to rotate around the central axis of the punch head 14 under the action of the first driving component, so that the stamping oil on the sponge brush 41 can be smeared on the lower surface of the punch head 14, and then the punch head 14 continues to move downward, and the sponge brush 41 can be switched from a horizontal state to a vertical state under the action of the second driving component, so that the side wall of the sponge brush 41 can contact the side wall of the punch head 14. At this time, under the action of the first driving component, the sponge brush 41 is driven to continue to rotate around the central axis of the punch head 14, and the stamping oil on the sponge brush 41 is smeared on the side wall of the punch head 14, so that when the punch head 14 punches the workpiece, the lower surface and side wall of the punch head 14 are smeared with stamping oil, thereby avoiding friction and wear between the punch head 14 and the workpiece.

[0052] In some embodiments, the first drive assembly includes a collar 42 and a drive structure. A spiral groove 251 is provided on the outer peripheral side of the sleeve 25. The collar 42 is threadedly connected to the sleeve 25 through the spiral groove 251. The sponge brush 41 can rotate synchronously with the collar 42. The drive structure is used to drive the collar 42 to rotate. The drive structure includes a connecting rod 43, a guide rod 44, a bevel gear 1 45, a bevel gear 2 46, a gear 2 47 and a gear 3 48. The bevel gear 1 45 is fixedly sleeved on the outer side of the rotating shaft 21. The gear 3 The fixing sleeve 48 is arranged on the outer side of the shaft sleeve 26, the bevel gear 2 46 and the gear 2 47 are both rotatably arranged on the support frame 13, and the bevel gear 2 46 and the gear 2 47 are coaxially arranged, the bevel gear 1 45 and the bevel gear 2 46 are meshingly connected, the gear 2 47 and the gear 3 48 are meshingly connected, the connecting rod 43 is fixedly sleeved on the outer side of the shaft sleeve 26, the guide rod 44 is longitudinally arranged at the lower end of the connecting rod 43, and a guide groove 441 is formed on the guide rod 44 along its length direction, and the collar 42 is longitudinally slidably arranged in the guide groove 441.

[0053] Specifically, Figures 2 to 8As shown, when the rotating shaft 21 rotates, the bevel gear 1 45 sleeved on the rotating shaft 21 will be driven to rotate, and the meshing transmission between the bevel gear 1 45 and the bevel gear 2 46 will drive the bevel gear 2 46 to rotate, thereby driving the gear 2 47 coaxially arranged with the bevel gear 2 46 to rotate. At this time, the meshing transmission between the gear 2 47 and the gear 3 48 will drive the gear 3 48 to rotate, thereby driving the shaft sleeve 26 to rotate. When the shaft sleeve 26 rotates, it can drive the connecting rod 43 to rotate, and drive the guide rod 44 and the sleeve ring 42 slidingly arranged in the guide groove 441 to rotate synchronously. At this time, the sleeve 25 is connected to the connecting rod 43 through the meshing transmission between the sleeve ring 42 and the sleeve 25. The threaded transmission can make the ring 42 rotate and move upward along the height direction of the sleeve 25 at the same time, and drive the sponge brush 41 to rotate and move upward at the same time. During this process, the sponge brush 41 will first be blocked by the punch head 14 and cannot move upward, so that the lower surface of the punch head 14 can be oiled by the rotation of the sponge brush 41. When the ring 42 continues to move upward relative to the punch head 14, the sponge brush 41 will switch to a vertical state under the action of the second drive assembly, and then move upward synchronously with the ring 42, that is, the sponge brush 41 can move spirally upward along the height direction of the punch head 14 to oil the side wall of the punch head 14.

[0054] In some embodiments, the second driving assembly includes a telescopic rod 51, an oiling roller 52, a stopper 53 and a pull rope 54. The telescopic rod 51 includes an outer rod 511 and an inner rod 512. The outer rod 511 is longitudinally arranged at the lower end of the ring 42. The upper end of the inner rod 512 is slidably arranged in the outer rod 511 and is connected to the ring 42 by a spring 55. The lower end of the inner rod 512 is hinged to the oiling roller 52 through a torsion spring 56. The sponge brush 41 is fixedly sleeved on the oiling roller. On the outside of the inner rod 52, a stopper 53 is horizontally slidably arranged at the lower end of the inner rod 512, and a spring 6 57 is connected between the stopper 53 and the inner rod 512 to enable the stopper 53 to extend outward and block the rotation of the oiling roller 52. Both the outer rod 511 and the inner rod 512 are provided with a space for the pull rope 54 to pass through. A rod 58 is provided at the lower end of the inner rod 512. One end of the pull rope 54 is connected to the ring 42, and the other end passes around the rod 58 and is connected to the stopper 53.

[0055] Specifically, Figures 2 to 8As shown, through the threaded transmission between the collar 42 and the sleeve 25, the collar 42 rotates and moves upward along the height direction of the sleeve 25. Since the sponge brush 41 is in a horizontal state and is located at the lower end of the punch head 14 in the initial state, the sponge brush 41 is blocked by the punch head 14 and cannot move upward with the collar 42. At this time, the collar 42 and the outer rod 511 move upward relative to the inner rod 512, and the spring five 55 is stretched to store force. When the collar 42 moves upward, the pull rope 54 moves with the movement of the collar 42, and the pull rope 54 is pulled upward, so that the block 53 can gradually approach the inner rod 512 under the pulling force of the pull rope 54, and the spring six 57 is compressed to store force. After the block 53 retracts into the inner rod 512, the oiling roller 52 loses the block 53. The oil coating roller 52 is blocked, so that the oil coating roller 52 can rotate around the hinge axis with the inner rod 512, and the torsion spring 2 56 is twisted to store force until the oil coating roller 52 rotates from a horizontal state to a vertical state, so that the side wall of the sponge brush 41 contacts the side wall of the punch head 14. During the rotation of the oil coating roller 52, the spring 55 stores force and releases it, driving the inner rod 512 and the oil coating roller 52 to move upward. After the oil coating roller 52 is in a vertical state, the movement of the collar 42 drives the oil coating roller 52 to move upward in a spiral direction along the height direction of the punch head 14, so that the stamping oil on the sponge brush 41 can cover the side wall of the punch head 14. That is, during the rotation of the collar 42, the sponge brush 41 can first be in a horizontal state to oil the lower surface of the punch head 14, and then rotate to a vertical state to oil the side wall of the punch head 14.

[0056] In the initial state, the oiling roller 52 is in a horizontal state, and the support frame 13 is driven to move downward by the driving member 15, and the punching head 14 is driven to move downward. During this process, the rotating shaft 21 rotates, and with the cooperation of the first driving assembly and the second driving assembly, the oiling roller 52 is changed from a horizontal state to a vertical state, and the torsion spring 2 56 is twisted to store force. When the lower end of the punching head 14 contacts the workpiece and punches the workpiece, the oiling roller 52 is in a vertical state. At this time, there is a certain distance between the lower end of the oiling roller 52 and the upper end of the punching table 11, so as to avoid the oiling roller 52 from affecting the punching process; after completing the punching of the workpiece, the torsion spring 1 33 is released to drive the rotating shaft 21 to reverse, and drive the cam 22 to rotate, so as to push the punching head 14 to hammer the workpiece repeatedly through the hammering member 23 to avoid the workpiece from rebounding. During the reversal of the rotating shaft 21, the bevel gear 1 45 is driven to reverse, and the bevel gear 1 45 and the cam 22 are connected. The meshing transmission between the bevel gear 2 46 drives the bevel gear 2 46 to reverse, and at the same time drives the gear 2 47 coaxially arranged with the bevel gear 2 46 to reverse. At this time, the meshing transmission between the gear 2 47 and the gear 3 48 can drive the gear 3 48 to reverse, and drive the shaft sleeve 26 to reverse, and at the same time drive the connecting rod 43, the guide rod 44 and the collar 42 to reverse. At this time, through the threaded cooperation between the collar 42 and the sleeve 25, the collar 42 will rotate while moving downward along the height direction of the sleeve 25, and drive the sponge brush 41 to rotate while moving downward. Since there is a certain distance between the lower end of the oiling roller 52 and the upper end of the punching table 11, the sponge brush 41 has space to move downward, so that when the punching head 14 repeatedly hammers the workpiece, the lower end of the sponge brush 41 will not contact the punching table 11, that is, the spiral downward movement of the sponge brush 41 will not affect the punching head 14;After completing the repeated hammering of the workpiece, the support frame 13 is driven to move upward by the driving member 15, and the punch head 14, the rotating shaft 21 and the sleeve 25 are driven to move upward synchronously, and at the same time, the collar 42 threadedly matched with the sleeve 25 is driven to move upward. While the rotating shaft 21 moves upward, the torsion spring 1 33 continues to release the stored force, so that the rotating shaft 21 continues to reverse, so as to drive the telescopic rod 2 51 and the sponge brush 41 to continue to move downward until the stored force of the torsion spring 1 33 is completely released. At this time, the lower end of the inner rod 512 is flush with the lower end of the punch head 14, and the stored force of the torsion spring 2 56 is released, driving the oiling roller 52 to move around the inner rod 512. The hinge shaft rotates, so that the oiling roller 52 and the sponge brush 41 rotate to a horizontal state, so that the side wall of the sponge brush 41 contacts the lower end of the punch head 14. During the rotation of the oiling roller 52, the end of the oiling roller 52 squeezes the stopper 53 and gradually approaches the inner rod 512, and compresses the spring 6 57 to store force. When the oiling roller 52 returns to a horizontal state, the spring 6 57 stores force and releases, driving the stopper 53 to pop out in a direction away from the inner rod 512, so that the stopper 53 limits the oiling roller 52. At this time, the oiling mechanism returns to the initial state and continues to move upward with the movement of the support frame 13 until the support frame 13 is reset. ;

[0057] In some embodiments, an oil storage groove 142 is provided along the circumferential direction at a position near the lower end of the outer peripheral side of the punch head 14. Specifically, Figure 2 and Figure 3 As shown, after the sponge brush 41 applies oil to the side wall of the punch head 14, if the amount of oil is large, the stamping oil on the side wall of the punch head 14 will slide down along the side wall of the punch head 14 and gradually enter the oil storage tank 142 at the lower end of the punch head 14. When the hammering part 23 repeatedly hammers the punch head 14, the stamping oil in the oil storage tank 142 will be shaken out, so that the stamping oil in the oil storage tank 142 can replenish the corners of the workpiece to prevent the corners of the punch head 14 and the workpiece from being worn during the repeated hammering process.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A metal stamping equipment, comprising a frame, a stamping table on the frame, a stamping die on the stamping table, characterized in that: Also includes: The punching assembly includes a support frame, a punching head, and a driving member for driving the support frame to reciprocate up and down. The punching head is arranged at the lower end of the support frame and can move up and down synchronously with the support frame; The hammering mechanism includes a rotating shaft, a rotating shaft driving assembly, a cam and a hammering piece. The rotating shaft is rotatably arranged on the support frame. The rotating shaft driving assembly is used to drive the rotating shaft to rotate. The cam sleeve is arranged on the outer side of the rotating shaft. The upper end of the hammering piece contacts the cam, and the lower end of the hammering piece contacts the upper end of the punch head. The hammering piece is provided with a spring 2 for driving it to reset. The oiling mechanism includes a sponge brush, a first drive assembly and a second drive assembly. The sponge brush has a horizontal state and a vertical state. When in the horizontal state, the sponge brush can apply oil to the lower surface of the punch head. When in the vertical state, the sponge brush can apply oil to the outer peripheral side of the punch head. The first drive assembly is used to drive the sponge brush to rotate around the central axis of the punch head. The second drive assembly is used to drive the sponge brush to switch between the horizontal state and the vertical state. The outer side of the punch head is provided with a sleeve along the longitudinal sliding sleeve, and a spring 1 is connected between the upper end of the punch head and the sleeve, the upper end of the sleeve is rotatably provided with a shaft sleeve, and the shaft sleeve is rotatably connected to the support frame, and the hammering member includes a hammer head, a connecting rod and a contact plate, the connecting rod is provided on the inner side of the shaft sleeve along the longitudinal sliding, and the lower end passes through the sleeve and is connected to the sleeve along the longitudinal sliding, the hammer head is provided at the lower end of the connecting rod and contacts with the punch head, the contact plate is provided at the upper end of the connecting rod and contacts with the cam, and the spring 2 is provided between the lower end of the contact plate and the sleeve; The rotating shaft driving assembly includes a rack, a gear 1, a torsion spring 1, a one-way bearing and a push-out structure. The rack is arranged on the frame along the height direction of the frame. The gear 1 sliding sleeve is arranged on the outer side of the rotating shaft, and the two can rotate synchronously. The gear 1 and the rack can be meshed. A torsion spring set is arranged on the outer side of the rotating shaft, and the two ends are respectively connected to the rotating shaft and the support frame. The cam is rotatably connected to the rotating shaft through the one-way bearing. The push-out structure is used to push the gear 1 to move along the axial direction of the rotating shaft, so that the gear 1 and the rack are out of meshing. The first driving assembly includes a collar and a driving structure. A spiral groove is provided on the outer peripheral side of the sleeve. The collar is threadedly connected to the sleeve through the spiral groove. The sponge brush can rotate synchronously with the collar. The driving structure includes a connecting rod, a guide rod, bevel gear 1, bevel gear 2, gear 2 and gear 3. Bevel gear 1 is fixedly sleeved on the outer side of the rotating shaft, gear 3 is fixedly sleeved on the outer side of the sleeve, bevel gear 2 and gear 2 are both rotatably arranged on the support frame, and bevel gear 2 and gear 2 are coaxially arranged. Bevel gear 1 and bevel gear 2 are meshingly connected, gear 2 and gear 3 are meshingly connected, the connecting rod is fixedly sleeved on the outer side of the sleeve, the guide rod is longitudinally arranged at the lower end of the connecting rod, and a guide groove is formed on the guide rod along its length direction, and the collar is slidably arranged in the guide groove along the longitudinal direction; The second driving assembly includes telescopic rod 2, an oiling roller, a block and a pull rope. The telescopic rod 2 includes an outer rod and an inner rod. The outer rod is longitudinally arranged at the lower end of the ring, the upper end of the inner rod is slidably arranged in the outer rod, and a spring five is connected between the outer rod and the ring. The lower end of the inner rod is hinged to the oiling roller through a torsion spring 2, and the sponge brush sleeve is arranged on the outer side of the oiling roller. The block is horizontally slidably arranged at the lower end of the inner rod, and a spring six is ​​connected between the inner rod so that the block can extend outward and prevent the oiling roller from rotating. Space for the pull rope to pass through is provided in the outer rod and the inner rod, and a rod is provided at the lower end of the inner rod. One end of the pull rope is connected to the ring, and the other end passes around the rod and is connected to the block.

2. A metal stamping equipment according to claim 1, characterized in that: The one-way bearing includes an inner ring and an outer ring. The inner ring is fixedly connected to the rotating shaft, and the outer ring is fixedly connected to the cam, so that when the rotating shaft rotates forward, the cam does not rotate, and when the rotating shaft rotates reversely, the cam rotates synchronously with the rotating shaft.

3. A metal stamping equipment according to claim 2, characterized in that: A mounting plate is provided on the frame, and the mounting plate is provided on the side of the rack away from the punching head. The pushing structure includes a contact ring and a contact block. The contact ring sliding sleeve is provided on the outer side of the rotating shaft and cooperates with the rotating shaft to stop rotation. Gear 1 is fixedly connected to the contact ring, and a baffle 1 is provided on the outer fixed sleeve of the rotating shaft. A spring 3 is provided between gear 1 and baffle 1. A telescopic rod 1 is connected between the lower end of the contact block and the mounting plate, and a spring 4 is provided on the outer sleeve of the telescopic rod 1. An inclined surface is provided on the upper end of the contact block, and the inclined surface gradually tilts downward toward the direction close to the punching head. When the contact ring moves downward, it can contact the inclined surface on the contact block.

4. A metal stamping equipment according to claim 3, characterized in that: A baffle plate 2 is provided on the side of the rack close to the punch head. When the gear 1 moves upward, the baffle plate 2 can block the resetting of the gear 1, so that the gear 1 and the rack are located on both sides of the baffle plate 2 respectively.

5. The metal stamping equipment according to claim 1, characterized in that: An oil storage groove is provided along the circumferential direction at a position near the lower end of the outer peripheral side of the punch head.

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