A toggle forging press

Abstract

The present invention relates to the technical field of punching machines, specifically to a toggle-type forging punching machine, comprising a punching machine body, a punching head arranged on the punching machine body, two stamping upper dies installed at the bottom of the punching head, and a workbench arranged below the stamping upper dies, two stamping lower dies are installed on the workbench, and the press plate is fixedly installed on one side of the outside of the punching head, and the press plate is located above the stamping upper die; the cooling mechanism is installed on the workbench and located below the press plate, the press plate is connected to the cooling mechanism, and the cooling mechanism is driven by the downward movement of the press plate; the smearing mechanism is installed on the workbench; this toggle-type forging punching machine effectively reduces the friction between the stamping upper die and the sleeve, reduces the heat of the stamping upper die during continuous high-intensity stamping, and at the same time reduces the wear of the stamping upper die and improves the stamping quality of the sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of punching machines, in particular to a toggle-type forging punching machine. Background Art

[0002] A toggle forging press utilizes the principles of a toggle mechanism to perform forging operations. The core of a toggle forging press lies in its sophisticated toggle transmission mechanism. This mechanism cleverly utilizes the connecting rod principle to convert the motor's rotary motion into the linear reciprocating motion of the slider (or punch). During this process, the lever effect of the toggle mechanism significantly amplifies the impact force of the punch upon contact with the workpiece, enabling high-speed and powerful stamping.

[0003] At present, stamping sleeves using an existing toggle forging press is a common metalworking method. The process involves placing the sleeve on the workbench of the press. Before stamping, the lower die is mounted on the workbench and the upper die is mounted on the bottom of the punch head. The upper die is pressed downward by the punch head. The punch head and the upper and lower dies cooperate to apply pressure, causing the sleeve to plastically deform, thereby obtaining the desired shape and size.

[0004] However, in the process of the upper die pressing down with the punch head, the sleeve requires a large punching force, which will increase the friction and wear between the upper die at the bottom of the punch head and the sleeve. At the same time, due to the long-term and high-intensity punching operation, the upper die at the bottom of the punch head will generate a lot of heat, which will not only affect the punching quality of the punch head and the upper die itself, but also affect the punching efficiency of the sleeve. Summary of the Invention

[0005] The object of the present invention is to provide a toggle forging punch to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a toggle forging press, comprising a press body, a punch head disposed on the press body, two upper punching dies mounted on the bottom of the punch head, and a workbench disposed below the upper punching dies, wherein two lower punching dies are mounted on the workbench, and the press plate, a cooling mechanism, and a smearing mechanism are also included. The press plate is fixedly mounted on one side of the outside of the punch head and is located above the upper punching dies.

[0007] The cooling mechanism is installed on the workbench and is located below the pressing plate. The pressing plate is connected to the cooling mechanism, and the cooling mechanism is driven by the downward movement of the pressing plate.

[0008] The smearing mechanism is installed on the workbench and is away from the side of the cooling mechanism. The smearing mechanism is used to intermittently apply lubricating oil to the stamping upper die at the bottom of the punch head.

[0009] The cooling mechanism includes two pressing rods fixedly mounted on the bottom of the pressing plate, the bottom of the pressing rods is slidably sleeved with an air cylinder, and the air cylinder is fixedly mounted on the workbench;

[0010] The bottom of the air cylinder is connected to a blowing pipe, the blowing end of the blowing pipe is directed toward the lower mold, and a one-way valve is installed on the blowing pipe;

[0011] A one-way air intake mechanism is installed at the bottom of the pressing rod, and the one-way air intake mechanism is located inside the air cylinder.

[0012] The one-way air intake mechanism includes a sealing block fixedly mounted on the bottom of the pressing rod, the outer side of the bottom of the sealing block is an annular bevel end, the annular bevel end is matched with a sealing ring, and the inner ring of the sealing ring is matched with the annular bevel end;

[0013] An annular push plug is fixedly connected to the outside of the sealing ring, and the annular push plug is cooperatively connected to the inner wall of the air cylinder. The annular push plug is fixedly connected to the pressing rod through multiple connecting frames, and a one-way air intake mechanism is provided to achieve one-way air intake inside the air cylinder.

[0014] The coating mechanism includes two support frames mounted on the workbench and away from the side of the gas cylinder, and the two support frames are respectively located on the outside of the two stamping lower dies;

[0015] The top of the support frame is rotatably connected to a support shaft, and a rotating member for synchronously driving the two support shafts in reverse is installed between the two support frames;

[0016] A protective shell is fixedly installed at the bottom of the support shaft, and a rotating frame is fixedly installed at the bottom of the protective shell. A connecting block is fixedly installed at the bottom of the rotating frame and directly below the protective shell. A fixing plate is installed on the outside of the connecting block, and the fixing plate is fixedly installed on the support frame;

[0017] A through hole is provided at one end of the rotating frame away from the connecting block, and a smearing member for smearing lubricating oil on the stamping lower die is installed at the through hole;

[0018] A telescopic rotating member for driving the smearing member is installed between the protective shell and the rotating frame;

[0019] A liquid supply mechanism is installed at the bottom of the connecting block, and the liquid supply mechanism is used to provide lubricating oil to the smearing mechanism. Through the smearing mechanism, the stamping upper mold is smeared with lubricating oil.

[0020] The rotating member includes a rotating motor installed on the support frame, the output end of the rotating motor is fixedly connected to the first rotating gear, the outer side of the first rotating gear is connected to the first gear belt, and the inner side of the first gear belt is connected to the second rotating gear, the second rotating gear is fixedly sleeved on the outer side of the support shaft, and the supporting shaft is driven to rotate by the rotating member.

[0021] The smearing member includes a protective sleeve that slides through the through hole, the protective sleeve is connected to the telescopic rotating member, the bottom end of the protective sleeve is fixedly connected to a liquid storage tube, and the top of the liquid storage tube is connected to a liquid spraying sleeve, a plurality of spray holes are arranged around the inner circle of the liquid spraying sleeve, the bottom of the liquid storage tube is connected to the liquid supply mechanism, and the smearing member is provided to achieve the function of smearing lubricating oil on the stamping upper mold.

[0022] The telescopic rotating member includes a rotating motor installed inside the protective shell, the output end of the rotating motor is located inside the rotating frame and is fixedly connected to the first rotating gear, the output end of the rotating motor is rotatably connected to the top of the rotating frame, the outer side of the first rotating gear is connected to the second gear belt, the inner side of the second gear belt is connected to the second rotating gear, and the second rotating gear is located inside the rotating frame and outside the through hole;

[0023] The second rotating gear is slidably sleeved on the outside of the protective sleeve, and a synchronization member is provided between the second rotating gear and the protective sleeve;

[0024] A moving part is installed on the rotating frame, and the moving part is fixedly connected to the top of the protective sleeve. Through the provided telescopic rotating part, the protective sleeve can be telescopically rotated relative to the rotating frame.

[0025] The synchronizer includes two synchronizer blocks installed on the inner side of the second rotating gear. The protective sleeve is provided with guide grooves at positions corresponding to the two synchronizer blocks. The protective sleeve is slidably sleeved on the outer side of the synchronizer block through the guide grooves. Through the synchronizer, the protective sleeve is synchronously driven relative to the second rotating gear.

[0026] The moving part includes an electric push rod installed on the rotating frame, the electric push rod is located above the rotating frame, the output end of the electric push rod is fixedly connected to a moving plate, and one end of the moving plate is rotatably sleeved on the outer side of the top of the protective sleeve, and the protective sleeve is connected to the rotating frame by the moving part.

[0027] The liquid supply mechanism includes a liquid supply box installed at the bottom of the connecting block, a hydraulic pump is connected to the liquid supply box, an output end of the hydraulic pump is connected to a liquid infusion tube, and the liquid infusion tube is installed at the bottom of the rotating frame, one end of the liquid infusion tube is installed with a telescopic tube, and the other end of the telescopic tube is connected to the liquid storage tube, and the liquid supply mechanism is provided to achieve the function of supplying liquid to the liquid storage tube.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. When the present invention is in use, a pressing plate is provided on one side of the punching head, and a cooling mechanism is installed on the workbench corresponding to the pressing plate. The cooling mechanism can cooperate with the punching head. When the punching head drives the upper mold at its bottom to punch the sleeve downward, a natural air flow is blown out from the cooling mechanism, which can not only cool the upper mold and the lower mold, but also blow away the dust on the sleeve, thereby reducing the wear of the upper mold at the punching head during stamping and increasing the stamping strength of the upper mold.

[0030] When the present invention is in use, after the cooling mechanism cools the stamping upper die for a period of time, the smearing mechanism can smear lubricating oil on the stamping upper die, thereby effectively reducing the friction between the stamping upper die and the sleeve, reducing the heat of the stamping upper die during continuous high-intensity stamping, and at the same time reducing the wear of the stamping upper die and improving the stamping quality of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a rear view of the overall mechanism of the present invention;

[0033] Figure 3 This is a schematic structural diagram of the punch head of the present invention;

[0034] Figure 4 Schematic diagram of the internal structure of the gas cylinder of the present invention;

[0035] Figure 5 This is a schematic diagram of the side cross-sectional structure of the sealing ring of the present invention;

[0036] Figure 6 This is a schematic diagram of the workbench structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the support structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the movable plate structure of the present invention;

[0039] Figure 9This is a schematic side view of the rotating frame of the present invention;

[0040] Figure 10 This is a schematic diagram of the structure of the telescopic rotating member of the present invention;

[0041] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure of area A in the middle;

[0042] Figure 12 It is a schematic diagram of the cross-sectional structure of the liquid storage tube of the present invention.

[0043] In the figure: 1. Punch body; 11. Punch head; 12. Punch upper die; 13. Workbench; 14. Punch lower die; 2. Press plate; 3. Cooling mechanism; 31. Press rod; 32. Air cylinder; 33. Blowing pipe; 34. One-way valve; 35. One-way air intake mechanism; 351. Sealing block; 352. Annular bevel end; 353. Sealing ring; 354. Annular push plug; 4. Applying mechanism; 41. Support frame; 42. Support shaft; 43. Rotating member; 431. Rotating motor; 432. First rotating gear; 433. First gear belt; 434. Second rotating gear; 44. Protective shell; 45. Rotating Moving frame; 451, through hole; 46, connecting block; 47, fixing plate; 5, smearing member; 51, protective sleeve; 511, guide groove; 52, liquid storage tube; 53, spray sleeve; 531, spray hole; 6, telescopic rotating member; 61, rotating motor; 62, first rotating gear; 63, second gear belt; 64, second rotating gear; 65, synchronous member; 651, synchronous block; 7, liquid supply mechanism; 71, liquid supply box; 711, external threaded tube; 712, sealing cover; 713, buzzer; 72, hydraulic pump; 73, infusion tube; 74, telescopic tube; 8, moving member; 81, electric push rod; 82, moving plate. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example 1

[0046] See also Figures 1 to 8 and Figures 11 to 12 A toggle forging press comprises a press body 1, a punch head 11 provided on the press body 1, two upper punching dies 12 provided at the bottom of the punch head 11, and a workbench 13 provided below the upper punching dies 12, two lower punching dies 14 provided on the workbench 13, and further comprises:

[0047] The pressing plate 2 is fixedly mounted on one side of the outside of the punch head 11 and is located above the punching upper die 12;

[0048] The cooling mechanism 3 is installed on the workbench 13 and is located below the pressing plate 2. The pressing plate 2 is connected to the cooling mechanism 3, and the cooling mechanism 3 is driven by the downward movement of the pressing plate 2;

[0049] The cooling mechanism 3 includes two pressing rods 31 fixedly mounted on the bottom of the pressing plate 2. The bottom of the pressing rods 31 is slidably sleeved with an air cylinder 32, and the air cylinder 32 is fixedly mounted on the workbench 13.

[0050] See Figure 3-Figure 5 The bottom of the air cylinder 32 is connected to a blowing pipe 33, and the blowing end of the blowing pipe 33 is directed toward the lower mold. In this embodiment, the blowing pipe 33 is L-shaped, and one end of the blowing pipe 33 is directed toward the lower mold. At the same time, it is located above the outer side of the sleeve, and a one-way valve 34 is installed on the blowing pipe 33. When the sleeve moves to the lower mold through the fixture on the workbench 13, the punch head 11 is pressed downward to blow gas out of the blowing pipe 33 to cool the lower mold and blow away impurities such as dust on the sleeve.

[0051] A one-way air intake mechanism 35 is installed at the bottom of the pressing rod 31 , and the one-way air intake mechanism 35 is located inside the air cylinder 32 .

[0052] The one-way air intake mechanism 35 includes a sealing block 351 fixedly mounted on the bottom of the pressing rod 31. The outer side of the bottom of the sealing block 351 is an annular bevel end 352. The annular bevel end 352 is connected to a sealing ring 353. The sealing ring 353 is made of rubber material. The inner ring of the sealing ring 353 is arranged to cooperate with the annular bevel end 352.

[0053] An annular push plug 354 is fixedly connected to the outside of the sealing ring 353. The annular push plug 354 is made of rubber material and is cooperatively connected to the inner wall of the gas cylinder 32. The annular push plug 354 is fixedly connected to the pressing rod 31 through multiple connecting frames. When the annular push plug 354, the sealing ring 353 and the sealing block 351 move downward along the inside of the gas cylinder 32 or are at rest, they can isolate the gas above the sealing block 351.

[0054] Specific implementation process: When the sleeve passes through the fixture on the workbench 13 and moves to the lower stamping lower die 14, and is located directly below the stamping upper die 12, the punching head 11 moves downward, and the punching head 11 synchronously drives the two stamping upper dies 12 at its bottom to move downward. When the two stamping upper dies 12 move downward, the two pressing rods 31 are synchronously driven to move downward along the inside of their corresponding air cylinders 32. When the pressing rods 31 move downward, the sealing block 351 is driven downward. When the sealing block 351 moves downward, the sealing ring 353 and the annular push plug 354 are driven to push the airflow inside the air cylinder 32. The airflow overflows through the blowing pipe 33, and the overflowing airflow cools the stamping lower die 14 on the one hand, and blows away impurities such as dust between the stamping lower die 14 and the sleeve on the other hand.

[0055] After the sleeve is stamped by the stamping upper die 12, the punching head 11 moves upward. At the same time, the two pressing rods 31 are driven upward by the pressing plate 2. When the pressing rods 31 move upward, the sealing block 351 is driven to move upward. As the sealing block 351 moves upward, the volume between the sealing block 351 and the bottom of the gas cylinder 32 increases, forming a negative pressure. At this time, the sealing ring 353 is driven to detach from the side close to the sealing block 351, so that the airflow at the top of the gas cylinder 32 enters the bottom of the gas cylinder 32, thereby achieving the effect of filling with gas.

[0056] See Figure 7 , the smearing mechanism 4 is installed on the workbench 13, and the smearing mechanism 4 is away from the side of the cooling mechanism 3. The smearing mechanism 4 is used to intermittently apply lubricating oil to the stamping upper die 12 at the bottom of the punch head 11.

[0057] The smearing mechanism 4 includes two support frames 41 mounted on the workbench 13 and away from the side of the gas cylinder 32. At the same time, a reinforcement plate is installed on one side of the support frame 41. The reinforcement plate is mounted on the workbench 13 by fastening bolts, so that the support frame 41 can be stably fixed on the workbench 13 through the reinforcement plate. The two support frames 41 are respectively located on the outside of the two stamping lower dies 14;

[0058] The top of the support frame 41 is rotatably connected to a support shaft 42, and a rotating member 43 for synchronously driving the two support shafts 42 in opposite directions is installed between the two support frames 41. In the specific implementation process, a rotating mechanism can also be set between the two support shafts 42 according to actual needs. The rotating mechanism can make the two support shafts 42 run synchronously and in opposite directions.

[0059] See Figure 8The rotating member 43 includes a rotating motor 431 mounted on the support frame 41, and the output end of the rotating motor 431 is fixedly connected to the first rotating gear 432, the outer side of the first rotating gear 432 is transmission-connected to the first gear belt 433, and the inner side of the first gear belt 433 is transmission-connected to the second rotating gear 434, and the second rotating gear 434 is fixedly sleeved on the outer side of the support shaft 42;

[0060] Specific implementation process: In the present invention, when lubricating oil is applied to the stamping lower die 14, a pressure sensor is installed inside the air cylinder 32, and each time the sealing block 351 moves up, it contacts the pressure sensor, and then the pressure sensor sends an electrical signal to the controller, and the controller is used to send the electrical signal to the counter, and until the counter detects that the sealing block 351 contacts the pressure sensor 10 times or the nth time set by the staff, the rotating motor 431 is operated, so that the first rotating gear 432 drives the first gear belt 433 to rotate, and when the first gear belt 433 rotates, the second rotating gear 434 further drives the support shaft 42 to rotate, until the support shaft 42 rotates 90°, and the rotating frame 45 rotates accordingly to the top of the stamping lower die 14 adjacent to it, and is located below the stamping upper die 12 at the same time;

[0061] See Figure 7 A protective shell 44 is fixedly installed at the bottom of the support shaft 42, and a rotating frame 45 is fixedly installed at the bottom of the protective shell 44. A connecting block 46 is fixedly installed at the bottom of the rotating frame 45 and directly below the protective shell 44. A fixing plate 47 is installed on the outside of the connecting block 46, and the fixing plate 47 is fixedly installed on the support frame 41;

[0062] See Figures 9-12 A through hole 451 is provided at one end of the rotating frame 45 away from the connecting block 46, and a smearing member 5 for applying lubricating oil to the stamping lower die 14 is installed at the through hole 451. The smearing member 5 includes a protective sleeve 51 that slides through the through hole 451. The protective sleeve 51 is connected to the telescopic rotating member 6. The bottom end of the protective sleeve 51 is fixedly connected to a liquid storage pipe 52, and the top of the liquid storage pipe 52 is connected to a liquid spraying sleeve 53. The inner circle of the liquid spraying sleeve 53 is surrounded by a plurality of spray holes 531. The bottom of the liquid storage pipe 52 is connected to the liquid supply mechanism 7.

[0063] A telescopic rotating member 6 for driving the smear member 5 is installed between the protective shell 44 and the rotating frame 45. The telescopic rotating member 6 includes a rotating motor 61 installed inside the protective shell 44. The output end of the rotating motor 61 is located inside the rotating frame 45 and is fixedly connected to the first rotating gear 62. The output end of the rotating motor 61 is rotatably connected to the top of the rotating frame 45. The outer side of the first rotating gear 62 is transmission-connected to the second gear belt 63. The inner side of the second gear belt 63 is transmission-connected to the second rotating gear 64. The second rotating gear 64 is located inside the rotating frame 45 and is located outside the through hole 451.

[0064] See Figure 11 The second rotating gear 64 is slidably sleeved on the outside of the protective sleeve 51, and a synchronizer 65 is provided between the second rotating gear 64 and the protective sleeve 51. The synchronizer 65 includes two synchronizer blocks 651 installed on the inner side of the second rotating gear 64. The protective sleeve 51 is provided with guide grooves 511 at positions corresponding to the two synchronizer blocks 651. The protective sleeve 51 is slidably sleeved on the outside of the synchronizer blocks 651 through the guide grooves 511.

[0065] A moving member 8 is mounted on the rotating frame 45 and fixedly connected to the top of the protective sleeve 51. The moving member 8 includes an electric push rod 81 mounted on the rotating frame 45. The electric push rod 81 is located above the rotating frame 45. The output end of the electric push rod 81 is fixedly connected to a moving plate 82, and one end of the moving plate 82 is rotatably sleeved on the outer side of the top of the protective sleeve 51.

[0066] A liquid supply mechanism 7 is installed at the bottom of the connecting block 46 , and the liquid supply mechanism 7 is used to provide lubricating oil to the smearing mechanism 4 .

[0067] The liquid supply mechanism 7 includes a liquid supply box 71 installed at the bottom of the connecting block 46, and the liquid supply box 71 is connected to a hydraulic pump 72. The output end of the hydraulic pump 72 is connected to a liquid infusion tube 73, and the liquid infusion tube 73 is installed at the bottom of the rotating frame 45. One end of the liquid infusion tube 73 is installed with a telescopic tube 74, and the other end of the telescopic tube 74 is connected to the liquid storage tube 52. At the same time, the telescopic tube 74 is connected to one end of the liquid storage tube 52, and the outer wall of the telescopic tube 74 is rotatably connected to the connection point of the liquid storage tube 52, so that when the liquid storage tube 52 rotates, the telescopic tube 74 does not affect the rotation operation of the liquid storage tube 52. On the other hand, the setting of the telescopic tube 74 can ensure the continuous supply of lubricating oil when the liquid storage tube 52 moves up or down relative to the through hole 451 of the rotating frame 45, and at the same time ensure a stable connection between the telescopic tube 74 and the liquid storage tube 52.

[0068] Specific implementation process: When one end of the two rotating frames 45 rotates to the bottom of the punching head 11 respectively, the punching head 11 stops moving to ensure that the stamping upper mold 12 is fully coated with lubricating oil, and the hydraulic pump 72 starts to operate, so that the lubricating oil enters the liquid storage tube 52 from the liquid supply box 71 through the infusion tube 73 and the telescopic tube 74. Subsequently, the electric push rod 81 is operated to make the movable plate 82 drive the protective sleeve 51 to move upward. When the protective sleeve 51 moves upward, it simultaneously drives the liquid storage tube 52 and the spray sleeve 53 inside it to move upward until the bottom end of the spray sleeve 53 is close to the bottom of the stamping upper mold 12. At this time, after the spray sleeve 53 is sleeved on the outside of the stamping upper mold 12, the electric push rod 81 stops running. As the hydraulic pump 72 continues to operate, the lubricating oil enters the spray sleeve 53 and is sprayed out through multiple spray holes 531. And at the same time as the spray hole 531 sprays out, the rotating motor 61 runs, so that the first rotating gear 62 drives the second rotating gear 64 to rotate through the second gear belt 63, so that the protective sleeve 51 drives the spray sleeve 53 to rotate relative to the outside of the stamping upper mold 12, and the continuous rotation of the spray sleeve 53 further makes the lubricating oil stably adhere to the outside of the stamping upper mold 12, so that the stamping upper mold 12 is lubricated while the airflow generated by the rotation cools the stamping upper mold 12. At the same time, in the present invention, the cooling mechanism 3 provided can ensure that the sleeve of the stamping upper mold 12 remains clean during stamping, thereby ensuring that the subsequent stamping upper mold 12 is fully lubricated with lubricating oil. Subsequently, the protective sleeve 51 is separated from the outside of the stamping upper mold 12, and the rotating frame 45 deviates from the bottom of the punching head 11.

[0069] Example 2

[0070] See also Figure 9 The second embodiment further supplements the first embodiment. Specifically, an external threaded tube 711 is installed on one side of the liquid supply box 71, and a sealing cover 712 is installed on the external threaded tube 711. At the same time, a liquid level sensor is also installed inside the liquid supply box 71, and a buzzer 713 is installed on the outside of the liquid supply box 71.

[0071] Therefore, when there is less liquid remaining in the liquid supply box 71, the liquid level sensor detects a signal and sends the signal to the controller, and the controller sends a signal to the buzzer 713. The buzzer 713 gives an early warning, and the staff opens the sealing cover 712 to promptly supply liquid to the inside of the liquid supply box 71.

[0072] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A toggle forging press, comprising a press body (1), a punch head (11) arranged on the press body (1), two upper punching dies (12) installed at the bottom of the punch head (11), and a workbench (13) arranged below the upper punching dies (12), wherein two lower punching dies (14) are installed on the workbench (13), characterized in that: It also includes a pressing plate (2), a cooling mechanism (3) and a smearing mechanism (4), wherein the pressing plate (2) is fixedly mounted on one side of the outside of the punching head (11), and the pressing plate (2) is located above the punching upper die (12); The cooling mechanism (3) is installed on the workbench (13) and is located below the pressing plate (2). The pressing plate (2) is connected to the cooling mechanism (3), and the cooling mechanism (3) is driven by the downward movement of the pressing plate (2); The smearing mechanism (4) is installed on a workbench (13), and the smearing mechanism (4) is away from the cooling mechanism (3). The smearing mechanism (4) is used to intermittently apply lubricating oil to the stamping upper die (12) at the bottom of the stamping head (11); The cooling mechanism (3) comprises two pressing rods (31) fixedly mounted on the bottom of the pressing plate (2); an air cylinder (32) is slidably sleeved on the bottom of the pressing rods (31), and the air cylinder (32) is fixedly mounted on the workbench (13); The bottom of the air cylinder (32) is connected to a blowing pipe (33), and the blowing end of the blowing pipe (33) faces the lower mold and is located above the outer side of the sleeve; The smearing mechanism (4) comprises two support frames (41) mounted on a workbench (13) and away from the side of the air cylinder (32); the top of the support frame (41) is rotatably connected to a support shaft (42); the bottom of the support shaft (42) is fixedly mounted with a protective shell (44); and the bottom of the protective shell (44) is fixedly mounted with a rotating frame (45); the end of the rotating frame (45) away from the connecting block (46) is provided with a through hole (451), and a smearing member (5) for smearing lubricating oil on the stamping lower die (14) is mounted at the through hole (451); the smearing member (5) comprises a protective sleeve (51) slidingly penetrating the through hole (451); The two support frames (41) are respectively located on the outsides of the two lower stamping dies (14); A rotating member (43) is installed between the two support frames (41) for synchronously driving the two support shafts (42) in reverse. A connecting block (46) is fixedly installed at the bottom of the rotating frame (45) and located directly below the protective shell (44); a fixing plate (47) is installed on the outside of the connecting block (46), and the fixing plate (47) is fixedly installed on the supporting frame (41); A telescopic rotating member (6) for driving the smear member (5) is installed between the protective shell (44) and the rotating frame (45); A liquid supply mechanism (7) is installed at the bottom of the connecting block (46), and the liquid supply mechanism (7) is used to provide lubricating oil to the smearing mechanism (4); The protective sleeve (51) is connected to the telescopic rotating member (6), the bottom end of the protective sleeve (51) is fixedly connected to a liquid storage pipe (52), and the top of the liquid storage pipe (52) is connected to a liquid spray sleeve (53), the inner circle of the liquid spray sleeve (53) is surrounded by a plurality of spray holes (531), and the bottom of the liquid storage pipe (52) is connected to a liquid supply mechanism (7); The telescopic rotating member (6) includes a rotating motor (61) installed inside the protective shell (44); the output end of the rotating motor (61) is located inside the rotating frame (45) and is fixedly connected to a first rotating gear (62); the output end of the rotating motor (61) is rotatably connected to the top of the rotating frame (45); the outer side of the first rotating gear (62) is connected to a second gear belt (63); the inner side of the second gear belt (63) is connected to a second rotating gear (64); the second rotating gear (64) is located inside the rotating frame (45) and outside the through hole (451); The second rotating gear (64) is slidably sleeved on the outside of the protective sleeve (51), and a synchronizing member (65) is provided between the second rotating gear (64) and the protective sleeve (51); A moving member (8) is installed on the rotating frame (45), and the moving member (8) is fixedly connected to the top of the protective sleeve (51); The synchronizer (65) includes two synchronizer blocks (651) installed on the inner side of the second rotating gear (64); the protective sleeve (51) is provided with guide grooves (511) at positions corresponding to the two synchronizer blocks (651); the protective sleeve (51) is slidably sleeved on the outer side of the synchronizer blocks (651) through the guide grooves (511); The moving member (8) comprises an electric push rod (81) mounted on a rotating frame (45), the electric push rod (81) being located above the rotating frame (45), the output end of the electric push rod (81) being fixedly connected to a moving plate (82), and one end of the moving plate (82) being rotatably sleeved on the outer side of the top of the protective sleeve (51).

2. A toggle forging press according to claim 1, characterized in that: A one-way valve (34) is installed on the air blowing pipe (33); A one-way air intake mechanism (35) is installed at the bottom of the pressing rod (31), and the one-way air intake mechanism (35) is located inside the air cylinder (32).

3. The toggle forging press according to claim 2, characterized in that: The one-way air intake mechanism (35) includes a sealing block (351) fixedly mounted on the bottom of the pressing rod (31); the outer side of the bottom of the sealing block (351) is an annular bevel end (352); a sealing ring (353) is connected to the annular bevel end (352); and the inner ring of the sealing ring (353) is arranged in cooperation with the annular bevel end (352); An annular push plug (354) is fixedly connected to the outside of the sealing ring (353), and the annular push plug (354) is cooperatively connected to the inner wall of the gas cylinder (32). The annular push plug (354) is fixedly connected to the pressing rod (31) through a plurality of connecting frames.

4. The toggle forging press according to claim 1, characterized in that: The rotating member (43) comprises a rotating motor (431) mounted on a support frame (41); an output end of the rotating motor (431) is fixedly connected to a first rotating gear (432); an outer side of the first rotating gear (432) is transmission-connected to a first gear belt (433); and an inner side of the first gear belt (433) is transmission-connected to a second rotating gear (434); and the second rotating gear (434) is fixedly sleeved on the outer side of the support shaft (42).

5. The toggle forging press according to claim 1, characterized in that: The liquid supply mechanism (7) comprises a liquid supply box (71) mounted on the bottom of the connecting block (46); a hydraulic pump (72) is connected to the liquid supply box (71); an output end of the hydraulic pump (72) is connected to a liquid infusion tube (73); the liquid infusion tube (73) is mounted on the bottom of the rotating frame (45); a telescopic tube (74) is mounted on one end of the liquid infusion tube (73); and the other end of the telescopic tube (74) is connected to the liquid storage tube (52).

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