Punch press with quick die installation

Abstract

The present invention discloses a punching machine for fast-installing molds, comprising a punching machine body and a punch. The punching machine body is provided with a reversible mold, and the mold comprises a first mold for molding and a second mold for trimming; the mold is arranged on the punching machine body through a rotating shaft, a volute spring is arranged between the rotating shaft and the punching machine body, a wire pull disk is arranged on the rotating shaft, a draw rope is wound on the wire pull disk, a lifting plate matched with the punching machine body is arranged on the punching machine body, and the lifting plate is connected with the draw rope; an upper mold is arranged on the punching machine, a first electromagnet is arranged in the upper mold, and a first button and a second button matched with a third electromagnet are respectively arranged on the first mold and the second mold. The present invention provides a punching machine that can mold and trim parts with the same punching machine, which greatly improves the efficiency of part molding, reduces the labor rate, and cools and lubricates the molding mold after the part is trimmed, thereby improving the quality of part molding.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, in particular to a punching machine for quickly installing a die. Background Art

[0002] Punch press is a commonly used stamping equipment in industrial production. It uses hydraulic or flywheel impact force to process the blank into the required parts. In the field of hydraulic valve body processing, the first step is usually to stamp the heated blank. During the processing of the existing hydraulic valve body, the blank needs to be transferred to the next tool after stamping to cut off the flash. The transfer process is very troublesome. Not only is the process complicated, but it also increases the production cost and labor transportation cost. In addition, the existing valve body is usually continuously stamped. This type of stamping method will cause a large amount of heat to remain in the mold cavity. The lack of lubrication will also cause certain damage to the mold. The valve body punched out later will also have residual defects on the surface. Summary of the invention

[0003] The invention aims at the deficiencies in the prior art and provides a punching machine for quickly installing a mold.

[0004] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a punch press for quickly installing a mold comprises a punch press body and a punch.

[0005] In the above solution, preferably, the punch body is provided with a reversible mold, and the mold includes a first mold for forming and a second mold for trimming;

[0006] The die is arranged on the punch body through a rotating shaft, a volute spring is arranged between the rotating shaft and the punch body, a wire pull disk is arranged on the rotating shaft, a wire pull disk is wound with a pull rope, a lifting plate matching with the punch is arranged on the punch body, and the lifting plate is connected with the pull rope;

[0007] The punch is provided with an upper die, a first electromagnet is provided inside the upper die, and the first die and the second die are respectively provided with a first button and a second button matched with a third electromagnet.

[0008] In the above scheme, preferably, a cavity is provided in the punch body, the mold is rotatably disposed in the cavity, a rope guide plate cooperating with and guiding the rope is provided on the cavity, and a conveyor capable of transmitting parts is provided at the bottom of the cavity.

[0009] In the above scheme, preferably, the punch is provided with a first locking device that cooperates with the lifting plate, the first locking device includes a first locking pin, a first spring and a first electromagnet, the first locking pin is provided with a first suction plate that cooperates with the first electromagnet, the punch is provided with a first mounting rod, the first locking pin is slidably provided on the first mounting rod, and the first spring is provided between the first suction plate and the first mounting rod.

[0010] In the above solution, preferably, the lifting plate is provided with a locking hole matched with the first locking pin, and the first mold is provided with a third button electrically connected to the first electromagnet.

[0011] In the above scheme, preferably, the punch body is provided with a second locking device that cooperates with the locking hole, the second locking device includes a second locking pin, a second spring and a second electromagnet, the second locking pin is provided with a second suction plate that cooperates with the second electromagnet, the punch body is provided with a second mounting rod, the second locking pin is slidably provided on the second mounting rod, and the second spring is provided between the second suction plate and the second mounting rod.

[0012] In the above solution, preferably, the second mounting rod is provided with a fourth button electrically connected to the first electromagnet and a fifth button electrically connected to the second electromagnet, and the lifting plate is provided with a contact plate capable of triggering the fourth button and the fifth button.

[0013] In the above scheme, preferably, a plurality of nozzles are provided in the cavity, a spray device connected to the nozzle is provided on the punch body, the spray device includes a cylinder body, a spray seat, a piston and a piston rod, a third spring is provided between the piston and the cylinder body, the piston rod is provided on the piston, and a spray port connected to the nozzle is provided on the cylinder body.

[0014] In the above scheme, preferably, the cylinder body is provided with a suction port, and the suction port is connected to a lubricating liquid tank.

[0015] In the above scheme, preferably, the cylinder body is provided with a suction port, and the second mold is provided with a suction cup port connected to the suction port, and the suction cup port can absorb the parts falling on the second mold.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a punch press that can form and trim parts with the same punch press, which greatly improves the efficiency of part forming, reduces the manual labor rate, and cools and lubricates the forming mold after part trimming, thereby improving the quality of part forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention after removing the punch body.

[0020] Figure 4 It is a schematic cross-sectional structural diagram of the first locking device and the second locking device of the present invention.

[0021] Figure 5 It is a schematic diagram of the punch body structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the injection device of the present invention.

[0023] Figure 7 It is a schematic diagram of the mold structure of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1-Figure 7 A punch press for quickly installing a mold comprises a punch press body 1 and a punch 2, wherein the punch 2 is slidably arranged on the punch press body 1, which is the prior art of punching.

[0025] The punch press body 1 is provided with a cavity 21 for accommodating the mold 3, and the two ends of the mold 3 are provided with rotating shafts 6, and the rotating shafts 6 are rotatably arranged in the cavity 21, that is, the mold 3 can be turned over in the cavity 21, and the mold 3 includes a first mold 4 for the first stamping forming, and the first mold 4 is preferably a concave mold. The punch 2 is provided with an upper mold 11 that cooperates with the first mold 4 to stamp the blank. The mold 3 also includes a second mold 5 for cutting off the flash of the part for the second time, and the second mold 5 is provided with a cutter that matches the shape of the part after stamping. The first mold 4 and the second mold 5 are respectively arranged on the upper and lower end surfaces of the mold 3.

[0026] A conveyor 23 for conveying trimmed parts is provided at the bottom of the cavity. The conveyor 23 is preferably a belt conveyor. The conveyor 23 can convey the parts to the outside of the punch press.

[0027] A spiral spring 7 is provided between the mold 3 and the punch body 1. The center end of the spiral spring 7 is clamped on the rotating shaft 6, and the outer edge end is clamped on the clamping block 101 of the punch body 1. The clamping block 101 is provided on the side wall of the cavity 21. That is, when the mold 3 is turned over by the rotating shaft 6, the spiral spring 7 can be coiled and tightened. When the mold 3 is not locked, the tensioning force of the spiral spring 7 can reset the mold 3.

[0028] A wire pulling drum 8 is provided on the rotating shaft 6, and a card slot is provided on the wire pulling drum 8. A pull rope 9 with several turns is coiled in the card slot. One end of the pull rope 9 is fixed in the card slot, and the other end is wound around the wire pulling drum 8 for several turns and then passed through the punch body 1 upward and a lifting plate 10 is fixed thereon. A guide plate 22 for the pull rope 9 to pass through is provided on the punch body 1. The guide plate 22 is arranged on the end surface of the cavity 21, and the lifting plate 10 is arranged above the guide plate 22.

[0029] The punch 2 is provided with a first locking device that cooperates with the lifting plate 10, and the first locking device includes a first locking pin 31, a first spring 32 and a first electromagnet 33. A first mounting rod 35 is provided vertically downward on the lower end surface of the punch 2. The first locking pin 31 is slidably arranged on the first mounting rod 35. The first mounting rod 35 is provided with a hole body that cooperates with the first locking pin 31. One end of the first locking pin 31 passes through the hole body, and the other end is fixedly provided with a first suction plate 34 that cooperates with the first electromagnet 33. The first electromagnet 33 is fixedly arranged on one side end surface of the first mounting rod 35. The first spring 32 is sleeved on the first locking pin 31, and the two ends are respectively pressed against the first suction plate 34 and the first mounting rod 35.

[0030] The lifting plate 10 is provided with a locking hole 36 that can cooperate with the first locking pin 31 after sliding, that is, when the punch 2 slides down and punches the mold 3, the first locking pin 31 can be concentric with the locking hole 36. At this time, if the first electromagnet 33 is energized, the first locking pin 31 can slide into the locking hole 36, and then when the punch 2 is lifted, the first mounting rod 35 can be lifted synchronously with the lifting plate 10, that is, when the first locking pin 31 slides into the locking hole 36, it can drive the lifting plate 10 to lift, and the lifting plate 10 pulls the pull rope 9 to rotate the pull drum 8, and the spiral spring 7 is tightened to realize the flipping of the mold 3. The first mold 4 is provided with a third button 37 electrically connected to the first electromagnet 33, that is, when the punch 2 drives the upper mold 11 to punch the first mold 4, the third button 37 can be triggered to energize the first electromagnet 33, and then when the punch 2 is lifted again, the mold 3 flips, and after flipping, the second mold 5 is facing the punch 2.

[0031] The punch body 1 is provided with a second locking device that matches the locking hole 36. The first locking device and the second locking device are respectively located on both sides of the lifting plate 10. The second locking device includes a second locking pin 41, a second spring 42 and a second electromagnet 43. A second mounting rod 45 on which the second locking pin 41 can be mounted is fixedly provided on the punch body 1. The second locking pin 41 is slidably arranged on the second mounting rod 45. The second electromagnet 43 is fixedly arranged on a side of the second mounting rod 45 away from the lifting plate 10. One end of the second locking pin 41 passes through the second mounting rod 45 toward the side of the lifting plate 10, and the other end is fixedly provided with a second suction plate 44 that matches the second electromagnet 43. The second spring 42 is sleeved on the second locking pin 41 and its two ends are respectively pressed against the second mounting rod 45 and the second suction plate 44.

[0032] The second mounting rod 45 is provided with a fourth button 51 electrically connected to the first electromagnet 33 and a fifth button 52 electrically connected to the second electromagnet 43, and the lifting plate 10 is provided with a contact plate 53 which can trigger the fourth button 51 and the fifth button 52, that is, when the lifting plate 10 slides upward to the position corresponding to the locking hole 36 and the second locking pin 41, the contact plate 53 can trigger the fourth button 51 and the fifth button 52 at the same time, so that the fourth button 51 triggers the first electromagnet 33 to cut off the power, and the fifth button 52 triggers the second electromagnet 43 to turn on the power, so that the second locking pin 41 slides into the locking hole 36, and then when the punch 2 slides down for the second time, the lifting plate 10 is always locked in this position by the second locking pin 41, that is, when the punch 2 slides down for the second time, it cooperates with the second mold 5 to achieve the trimming effect.

[0033] A third electromagnet 12 is provided in the upper mold 11, and the part is an iron valve body. When the third electromagnet 12 is energized, the part can be adsorbed. A first button 13 cooperating with the third electromagnet 12 is provided on the first mold 4, and a second button 14 cooperating with the third electromagnet 12 is provided on the second mold 5. That is, when the upper mold 11 cooperates with the first mold 4, the first button 13 can be triggered to make the third electromagnet 12 energized to adsorb the part, and then the part is adsorbed on the upper mold 11 when the punch 2 is lifted. When the upper mold 11 cooperates with the second mold 5, the second button 14 can be triggered to de-energize the third electromagnet 12, and the part falls into the second mold 5 without being sucked.

[0034] A plurality of nozzles 61 are arranged in the cavity 21, and the nozzles 61 are arranged on the flip side of the mold 3. A spray device connected to the nozzle 61 is arranged on the punch body 1, and the spray device includes a cylinder 62, a spray seat 63, a piston 64 and a piston rod 65. A third spring 66 is arranged between the piston 64 and the cylinder 62. The piston rod 65 is arranged on the piston 64. One end of the piston rod 65 is fixed on the piston 64, and the other end is connected to the lifting plate vertically downward after passing through the cylinder 62. The cylinder 62 is provided with a spray port 67 connected to the nozzle 61, and the spray port 67 is arranged at the lower end of the cylinder 62. The lower end of the cylinder 62 is also provided with a suction port 68 that can be connected to an external lubricating liquid tank. The suction port 68 can draw the lubricating liquid in the lubricating liquid tank into the lower cavity of the cylinder 62.

[0035] A one-way valve is provided between the suction port 68 and the lubricating liquid tank, and the flow direction of the one-way valve is from the lubricating liquid tank to the cylinder body 62. A one-way valve is provided between the injection port 67 and the nozzle 61, and the flow direction of the one-way valve is from the injection port 67 to the nozzle 61. That is, when the lifting plate 10 is lifted upward, the piston 64 slides upward to form a vacuum in the lower part of the cylinder body 62, and the lubricating liquid in the lubricating liquid tank is drawn into the lower cavity of the cylinder body 62. When the lifting plate 10 slides downward, the drawn lubricating liquid is subjected to the pressure of the third spring 66, and the lubricating liquid flows out of the injection port 67 and is sprayed from the nozzle 61 into the flipped first mold 4.

[0036] The cylinder body 62 is provided with a suction port 71, and the second mold 5 is provided with a suction cup port 72 connected to the suction port 71. The suction cup port 72 can absorb the parts falling on the second mold 5, that is, when the piston 64 slides downward, the suction port 71 is sucked, so that the suction cup port 72 forms a vacuum to absorb the parts.

[0037] A positioning pin 102 for positioning the mold 3 is provided in the cavity 21, a positioning spring 103 is provided between the positioning pin 102 and the punch body 1, a first positioning hole 104 and a second positioning hole 105 matched with the positioning pin 102 are provided on the mold 3, one end of the positioning pin 102 is matched with the positioning hole, and the other end is passed through the punch body 1 and fixed with a cable 106, the cable 106 is connected to the first suction plate 34, and a manual unlocking plate 108 is provided on the cable 106. When the second stamping of the punch 2 is completed, the manual unlocking plate 108 can be used to unlock the mold 3.

[0038] The second mold 5 is provided with a sixth button 107 cooperating with the second electromagnet 43. The sixth button 107 can be triggered by the upper mold 11 to cut off the power to the second electromagnet 43, that is, when the sixth button 107 is triggered, the second electromagnet 43 can be cut off, and the lifting plate 10 is not locked.

[0039] Method for using the punch press with the above-mentioned quick mold installation: S1: During the first punching, the first mold 4 faces the upper mold 11, and the blank is placed on the first mold 4. At this time, the punch 2 slides down, so that the upper mold 11 cooperates with the first mold 4 to form the blank. At the same time, the first button 13 is triggered to energize the third electromagnet 12, and the upper mold 11 absorbs the stamped parts, and the third button 37 triggers the first electromagnet 33 to energize so that the first locking pin 31 cooperates with the lifting plate 10;

[0040] S2: the punch 2 is lifted, and the parts are lifted synchronously with the upper die 11, and the first locking pin 31 drives the lifting plate 10 to be lifted synchronously, and the lubricating liquid is sucked into the cylinder 62 while the lifting plate 10 is lifted. When the lifting plate 10 is lifted to the position of the second locking pin 41, the fourth button 51 and the fifth button 52 are triggered, so that the second locking pin 41 cooperates with the lifting plate 10 to lock the lifting plate 10 at the upper end of the second mounting rod 45;

[0041] S3: While S2 is being performed, the first suction plate 34 slides to unlock the positioning pin 102 and the first positioning hole 104 on the mold 3. At the same time, the lifting plate 10 drives the pull rope 9 to rotate the mold 3 180 degrees, and the positioning pin 102 slides into the second positioning hole 105, so that the second mold 5 is facing the upper mold 11, and the spiral spring 7 is tightened;

[0042] S4: the punch 2 slides down again to make the part cooperate with the second die 5 to cut off the flash of the part. At this time, the second button 14 is triggered to turn off the power of the third electromagnet 12, and the sixth button 107 is triggered to turn off the power of the second electromagnet 43. At this time, the lifting plate 10 is not locked. When the punch 2 rises, the positioning pin 102 is manually unlocked, and the lifting plate 10 slides downward and resets under the action of the scroll spring 7;

[0043] S5: When the lifting plate 10 slides downward to reset, the piston 64 slides downward under the action of the third spring 66, so that the suction port 71 produces a suction effect. The suction port 71 forms a vacuum on the suction cup port 72 to absorb the trimmed parts. At the same time, when the mold 3 is reset and flipped, the piston 64 sprays the lubricating liquid stored in the cylinder body 62 through the nozzle 61 to lubricate the mold cavity of the first mold 4.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A punching machine for quick mold installation, comprising a punching machine body (1) and a punch (2). Features: The punch body (1) is provided with a reversible mold (3), and the mold (3) comprises a first mold (4) for forming and a second mold (5) for trimming; The mold (3) is arranged on the punch body (1) via a rotating shaft (6); a volute spring (7) is arranged between the rotating shaft (6) and the punch body (1); a wire pull drum (8) is arranged on the rotating shaft (6); a pull rope (9) is wound on the wire pull drum (8); a lifting plate (10) matched with the punch (2) is arranged on the punch body (1); and the lifting plate (10) is connected to the pull rope (9); The punch (2) is provided with an upper die (11), a third electromagnet (12) is provided inside the upper die (11), and the first die (4) and the second die (5) are respectively provided with a first button (13) and a second button (14) which cooperate with the third electromagnet (12); The punch (2) is provided with a first locking device that matches the lifting plate (10), the first locking device comprising a first locking pin (31), a first spring (32) and a first electromagnet (33), the first locking pin (31) is provided with a first suction plate (34) that matches the first electromagnet (33), the punch (2) is provided with a first mounting rod (35), the first locking pin (31) is slidably arranged on the first mounting rod (35), and the first spring (32) is arranged between the first suction plate (34) and the first mounting rod (35); The lifting plate (10) is provided with a locking hole (36) that matches the first locking pin (31), and the first mold (4) is provided with a third button (37) that is electrically connected to the first electromagnet (33).

2. The punching machine for quick mold installation according to claim 1, Features: A cavity (21) is provided in the punch body (1), the mold (3) is rotatably disposed in the cavity (21), a rope guide plate (22) is provided on the cavity (21) for matching with and guiding the rope (9), and a conveyor (23) for conveying parts is provided at the bottom of the cavity (21).

3. The punching machine for quick mold installation according to claim 2, Features: The punch body (1) is provided with a second locking device that matches the locking hole (36), the second locking device comprising a second locking pin (41), a second spring (42) and a second electromagnet (43), the second locking pin (41) is provided with a second suction plate (44) that matches the second electromagnet (43), the punch body (1) is provided with a second mounting rod (45), the second locking pin (41) is slidably mounted on the second mounting rod (45), and the second spring (42) is arranged between the second suction plate (44) and the second mounting rod (45).

4. The punching machine for quick mold installation according to claim 3, Features: The second mounting rod (45) is provided with a fourth button (51) electrically connected to the first electromagnet (33) and a fifth button (52) electrically connected to the second electromagnet (43), and the lifting plate (10) is provided with a contact plate (53) capable of triggering the fourth button (51) and the fifth button (52).

5. The punching machine for quick mold installation according to claim 4, Features: A plurality of spray heads (61) are arranged in the cavity (21); a spray device connected to the spray head (61) is arranged on the punch body (1); the spray device comprises a cylinder (62), a spray seat (63), a piston (64) and a piston rod (65); a third spring (66) is arranged between the piston (64) and the cylinder (62); the piston rod (65) is arranged on the piston (64); and a spray port (67) connected to the spray head (61) is arranged on the cylinder (62).

6. The punching machine for quick mold installation according to claim 5, Features: The cylinder body (62) is provided with a suction port (68), and the suction port (68) is connected to a lubricating liquid tank.

7. The punching machine for quick mold installation according to claim 6, Features: The cylinder body (62) is provided with a suction port (71), and the second mold (5) is provided with a suction cup port (72) connected to the suction port (71), and the suction cup port (72) can suck parts that fall onto the second mold (5).

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