Forging and pressing equipment and forging and pressing method for S-shaped head of camshaft

Abstract

The invention relates to the technical field of hot forging and pressing, and discloses forging and pressing equipment and a forging and pressing method for a camshaft S head. The forging and pressing equipment comprises a forging and pressing machine tool, a forging and pressing head and a forging and pressing mechanism are arranged on the forging and pressing machine tool, a die bottom plate is arranged on the forging and pressing machine tool, and die side plates are arranged on the periphery of the die bottom plate; a guide collapse column, a jacking spring and a demolding mechanism are arranged at the bottom of the mold bottom plate, and a connecting mechanism is arranged on the mold side plate; the connecting mechanism comprises inserting rods, an unlocking assembly and a positioning assembly, and the inserting rods are linearly arrayed on the mold side plate; the forging machine tool is further provided with a lifting mechanism. According to the overload protection device, overload protection can be conducted on the forging and pressing head, meanwhile, overload protection can be conducted on the die, meanwhile, a user can conveniently clean away chippings left on the die bottom plate during overload forging and pressing, and therefore the practicability is improved, and the problem that after overload forging and pressing, a workpiece can be attached to the die is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hot forging, and in particular to a forging device and a forging method for a camshaft S head. Background Art

[0002] Forging is a process that uses pressure to plastically deform a metal blank to achieve the desired shape, size, and mechanical properties. It is an important method for metal plastic forming and is widely used in machinery manufacturing, automotive, aerospace, energy, and other fields. Forging is broadly categorized by temperature: hot forging, warm forging, and cold forging. Hot forging involves heating the workpiece to a certain temperature (generally 800-1200°C) and then forging it into the desired shape using a forging press and die. Hot forging is often used in the production of high-load workpieces, significantly improving their tensile strength, elongation, and service life.

[0003] The S-head camshaft is a key component in the air brake system of commercial vehicles (especially heavy trucks and buses). It is used to control the opening and closing of the brake shoes. Its name comes from the "S"-shaped profile of the cam, which can efficiently transmit braking force while reducing wear. The main manufacturing processes of the S-head camshaft currently include: casting, forging, and machining (turning + grinding), but most manufacturers still choose hot forging to manufacture the S-head camshaft.

[0004] In order to protect the forging head, most existing forging machines are equipped with an overload protection mechanism. However, most of the existing overload protection mechanisms protect the forging head. As a result, after the forging head is overloaded forging, the forging head will not be damaged, but the mold on the machine tool will be damaged due to the overload forging of the forging head, which leads to greater limitations of the overload protection mechanism. Moreover, after overload forging occurs again, the workpiece will often get stuck in the mold, making it inconvenient for the user to pick up the workpiece. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a forging equipment and a forging method for a camshaft S head, which has the advantages of being able to protect the forging head while protecting the mold and facilitating demolding of the workpiece, thereby solving the above-mentioned problems.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a forging device, comprising a forging machine, wherein the forging machine is provided with a forging head and a forging mechanism, wherein the forging mechanism is used to drive the forging head to move downward for forging, wherein the forging machine is provided with a die bottom plate, wherein die side plates are provided around the die bottom plate, wherein the die bottom plate and the die side plates together form a forging die, and wherein a guide collapse column, a lifting spring and a demolding mechanism are provided at the bottom of the die bottom plate, wherein the guide collapse column is used to guide the die bottom plate to move downward, the lifting spring is used to push the die bottom plate to move upward, the demolding mechanism is used to demold a workpiece, and a connecting mechanism is provided on the die side plates;

[0007] The connecting mechanism includes an insert rod, an unlocking assembly, and a positioning assembly. The insert rods are linearly arrayed on the mold side plate. The unlocking assembly is used to drive the insert rods to move. During overload forging, the forging mechanism drives the unlocking assembly to operate, thereby driving the insert rods to separate from the mold bottom plate. At the same time, the forging mechanism drives the positioning assembly to reposition the position of the mold side plate.

[0008] The forging machine is also provided with a lifting mechanism, and when the die side plate moves downward, the lifting mechanism is driven to lift and move the entire position of the forging mechanism upward.

[0009] Preferably, a mounting groove is provided on the forging machine, one end of the guide collapse column and the lifting spring are fixedly connected to the inner side of the mounting groove, and the other end of the guide collapse column and the lifting spring are fixedly connected to the bottom of the mold base plate.

[0010] Preferably, the forging mechanism includes a fixed frame and a hydraulic cylinder, the fixed frame is fixedly connected to the forging machine, the hydraulic cylinder is distributed on the fixed frame, the output shaft of the hydraulic cylinder passes through the fixed frame and is fixedly connected to a limit plate, the limit plate is slidably connected to the fixed frame, and the forging head is fixedly connected to the limit plate.

[0011] Preferably, a slot is inserted into the outer side of the insertion rod, and the slot is opened on the mold bottom plate. The end of the insertion rod away from the slot passes through the mold side plate and is fixedly connected to a trapezoidal plate. The outer side of the trapezoidal plate is slidably connected to a limit rod, and the limit rod is fixedly connected to the inner side of the mold side plate. The outer side of the trapezoidal plate is also fixedly connected to symmetrically distributed limit springs.

[0012] Preferably, the unlocking assembly includes an extrusion block, which is distributed on the inner side of the mold side plate and abuts against the outer side of the trapezoidal plate. The bottom of the extrusion block is fixedly connected to a pressure rod, and the bottom of the pressure rod is fixedly connected to a return spring. The end of the return spring away from the pressure rod is fixedly connected to the bottom of the mold side plate.

[0013] Preferably, the positioning assembly includes a convex groove and a round head positioning groove, the convex groove is circumferentially distributed on the outside of the mounting groove, the inner side of the convex groove is fixedly connected to a fixing rod, a slider is slidably connected to the fixing rod, the outer side of the slider is fixedly connected to a connecting arm, and the end of the connecting arm away from the slider is fixedly connected to the mold side plate.

[0014] Preferably, a groove is provided on the inner side of the convex groove, and a symmetrically distributed guide rod is fixedly connected to the inner side of the groove, a slide is slidably connected to the guide rod, a compression spring is fixedly connected to one side of the slide, and the end of the compression spring away from the slide is fixedly connected to the inner side of the groove, and the end of the slide away from the compression spring is fixedly connected to a round-head positioning rod, and the round-head positioning groove is provided on the slider.

[0015] Preferably, the lifting mechanism includes a limit frame and a bent pipe, the limit frame is fixedly connected to the fixed frame, and the limit frame is slidably connected to a top plate, the hydraulic cylinder is fixedly connected to the top plate, the bent pipe is distributed in the mounting groove, and the bent pipe is distributed at both ends of the mounting groove, the inner ends of the bent pipe are respectively slidably connected with a convex rod and a push rod, the convex rod is fixedly connected with a return spring, the return spring is fixedly connected to the bent pipe at one end away from the convex rod, the push rod is fixedly connected to the top plate at one end away from the bent pipe, the push rod is fixedly connected with a fixing spring, and the fixing spring is fixedly connected to the bent pipe at one end away from the push rod. When the mold side plate moves downward, it can drive the convex rod to move downward.

[0016] Preferably, the demolding mechanism includes an inner groove and a cylindrical groove, the inner groove is opened on the mold bottom plate, the cylindrical groove is opened in the forging machine, a demolding spring is fixedly connected to the inner side of the cylindrical groove, the demolding spring is fixedly connected to a demolding rod at one end away from the cylindrical groove, the demolding rod is fixedly connected to a demolding plate at one end away from the demolding spring through the cylindrical groove and the mold bottom plate, and the demolding plate can be retracted into the inner groove.

[0017] A forging method for a camshaft S head uses the forging equipment mentioned above.

[0018] Compared with the prior art, the present invention provides a forging device and a forging method for a camshaft S head, which have the following beneficial effects:

[0019] 1. According to the present invention, when the forging head is overloaded and forging, the pressure on the mold base plate is relatively large. At this time, the guiding collapse column at the bottom of the mold base plate collapses. At this time, the mold base plate and the mold side plate are squeezed and moved downward by the forging head. The mold base plate moves downward and squeezes the lifting spring. After the mold side plate moves downward, the unlocking assembly operates. At this time, the unlocking assembly drives the insertion rod to separate from the mold base plate. At this time, the mold side plate is separated from the mold base plate, but the mold side plate and the mold base plate are still in a downward state. The mold side plate moves downward to drive the lifting mechanism, and the lifting mechanism operates to drive the forging mechanism and the forging head to move upward as a whole. At this time, the forging head and the forging mechanism are driven to move upward as a whole. At this time, the pressure on the mold base plate and the mold side plates is greatly reduced, thereby achieving overload protection for the forging head while also achieving overload protection for the mold.

[0020] 2. In the present invention, when the mold side plate moves downward, the unlocking assembly separates the mold side plate from the mold bottom plate. When the mold side plate subsequently moves downward, the positioning assembly can fix the position of the mold side plate, so that when the forging head subsequently returns to its original position, the mold side plate will not move with the mold bottom plate, thereby making it convenient for the user to clean up the debris remaining on the mold bottom plate during overload forging, thereby improving practicality.

[0021] 3. In the present invention, during forging, the forging mechanism drives the forging head, the mold base plate and the mold side plate to forge the workpiece. After forging, the demolding mechanism separates the workpiece on the mold base plate from the mold base plate, thereby realizing demolding of the mold. In addition, during overload forging, the demolding mechanism can still demold the workpiece, further improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0024] Figure 3 It is a front side sectional view of the present invention;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0026] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 6 It is a left side sectional view of the present invention;

[0028] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0029] Figure 8 for Figure 6 A magnified schematic diagram of the structure at D in the middle;

[0030] Figure 9 Schematic diagram of the connection mechanism in the present invention.

[0031] Figure: 1. Forging machine; 101. Mounting slot; 2. Forging head; 3. Forging mechanism; 31. Fixing frame; 32. Hydraulic cylinder; 33. Limiting plate; 4. Die bottom plate; 5. Lifting mechanism; 51. Limiting frame; 52. Bend pipe; 53. Top plate; 54. Protruding rod; 55. Push rod; 56. Return spring; 57. Fixing spring; 6. Die side plate; 7. Demolding mechanism; 71. Inner groove; 72. Cylindrical groove; 73. Demolding spring; 74. Demolding rod; 75. Demolding plate; 8. Connecting mechanism; 81. Insert Rod; 811, slot; 812, trapezoidal plate; 813, limit rod; 814, limit spring; 82, unlocking assembly; 821, extrusion block; 822, pressure rod; 823, return spring; 83, positioning assembly; 831, convex groove; 833, fixing rod; 834, slider; 835, connecting arm; 836, groove; 837, guide rod; 838, slide plate; 839, compression spring; 8310, round head positioning rod; 8311, round head positioning groove; 9, guide collapse column; 10, lifting spring. DETAILED DESCRIPTION

[0032] 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.

[0033] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a forging device and a forging method for a camshaft S head.

[0034] Example 1: Please refer to Figures 1-9 A forging device includes a forging machine 1, which is provided with a forging head 2 and a forging mechanism 3. The forging mechanism 3 is used to drive the forging head 2 to move downward for forging. The forging machine 1 is provided with a die base plate 4. The die base plate 4 is surrounded by die side plates 6. The die base plate 4 and the die side plates 6 together form a forging die. The bottom of the die base plate 4 is provided with a guide collapse column 9, a lifting spring 10 and a demolding mechanism 7. The guide collapse column 9 is used to guide the die base plate 4 to move downward, the lifting spring 10 is used to push the die base plate 4 to move upward, the demolding mechanism 7 is used to demold the workpiece, and a connecting mechanism 8 is provided on the die side plate 6.

[0035] The connecting mechanism 8 includes an insert rod 81, an unlocking assembly 82, and a positioning assembly 83. The insert rod 81 is linearly arrayed on the mold side plate 6. The unlocking assembly 82 is used to drive the insert rod 81 to move. During overload forging, the forging mechanism 3 drives the unlocking assembly 82 to operate, thereby driving the insert rod 81 to separate from the mold bottom plate 4. At the same time, the forging mechanism 3 drives the positioning assembly 83 to reposition the position of the mold side plate 6.

[0036] The forging machine 1 is further provided with a lifting mechanism 5 . When the die side plate 6 moves downward, the lifting mechanism 5 is driven to lift and move the entire position of the forging mechanism 3 upward.

[0037] When in use, the forging head 2 is driven downward by the forging mechanism 3 until the forging head 2 is moved into the die bottom plate 4, and the workpiece is forged under the action of the die bottom plate 4, the die side plate 6, and the forging head 2. When the forging mechanism 3 is overloaded and forged, the forging mechanism 3 drives the forging head 2 to contact the die bottom plate 4, and the forging mechanism 3 will also drive the forging head 2 to continue to move downward. The forging head 2 moves downward to extrude the demoulding mechanism 7 and the die bottom plate 4. At this time, the guiding collapse column 9 at the bottom of the die bottom plate 4 is subjected to a large pressure, resulting in collapse deformation. At this time, the die bottom plate 4 and the die side plate 6 are driven downward by the forging head 2, and the die bottom plate 4 moves downward to extrude the lifting spring 10. After the die side plate 6 moves downward, the unlocking component 82, the positioning component 83 and the lifting mechanism 5 are operated, and the unlocking component 82 operates to drive the insertion rod 81 to separate from the die bottom plate 4. At this time, the die side plate 6 and The mold base plate 4 is separated, the positioning component 83 operates to fix the mold side plate 6, and the lifting mechanism 5 operates to drive the forging mechanism 3 and the forging head 2 to move upward as a whole. At this time, the forging head 2 is separated from the mold base plate 4, and the pressure on the mold base plate 4 is also reduced. After that, as the forging mechanism 3 drives the forging head 2 to separate from the mold base plate 4, since the mold side plate 6 is fixed by the positioning component 83, the lifting spring 10 will push the mold base plate 4 to its original position, and at the same time, the demolding mechanism 7 separates the workpiece on the mold base plate 4 from the mold base plate 4. After that, the workpiece can be taken away and the debris in the mold base plate 4 caused by overload forging can be cleaned, thereby achieving overload protection for the forging head 2 while also overload protection for the mold, thereby improving practicality and avoiding the problem of the workpiece sticking to the mold after overload forging.

[0038] Example 2: See Figures 1-9, different from the above-mentioned embodiment 1, a mounting groove 101 is provided on the forging machine 1, one end of the guide collapse column 9 and the jacking spring 10 are fixedly connected to the inner side of the mounting groove 101, and the other ends of the guide collapse column 9 and the jacking spring 10 are fixedly connected to the bottom of the mold base plate 4, and the forging mechanism 3 includes a fixed frame 31 and a hydraulic cylinder 32, the fixed frame 31 is fixedly connected to the forging machine 1, and the hydraulic cylinder 32 is distributed on the fixed frame 31, and the output shaft of the hydraulic cylinder 32 passes through the fixed frame 31 and is fixedly connected to the limit plate 33, the limit plate 33 is slidably connected to the fixed frame 31, and the forging head 2 is fixedly connected to the limit plate 33;

[0039] The limit plate 33 is driven by the hydraulic cylinder 32 to move along the fixed frame 31, and the movement of the limit plate 33 drives the forging head 2 to move. When overload forging occurs, the mold base plate 4 is subjected to a large pressure, which causes the mold base plate 4 to be squeezed downward by the forging head 2. The downward movement of the mold base plate 4 transmits the pressure to the guide collapse column 9. At this time, the pressure borne by the guide collapse column 9 is greater than the pressure threshold it can withstand. At this time, the mold base plate 4 squeezes the guide collapse column 9, and the guide collapse column 9 undergoes collapse deformation, thereby dispersing the pressure borne by the mold base plate 4 and guiding the mold base plate 4 to move downward to the specified position. While the mold base plate 4 squeezes the guide collapse column 9, it also squeezes the lifting spring 10. After the subsequent forging head 2 is separated from the mold base plate 4, the lifting spring 10 can push the mold base plate 4 to its original position under the action of its own elastic force, thereby facilitating subsequent users to handle the mold base plate 4.

[0040] Example 3, see Figures 1-9, which is different from the above-mentioned embodiment 2, is that the outer side of the insertion rod 81 is plugged with a slot 811, and the slot 811 is opened on the mold bottom plate 4. The end of the insertion rod 81 away from the slot 811 passes through the mold side plate 6 and is fixedly connected to the trapezoidal plate 812. The outer side of the trapezoidal plate 812 is slidably connected to the limit rod 813, and the limit rod 813 is fixedly connected to the inner side of the mold side plate 6. The outer side of the trapezoidal plate 812 is also fixedly connected to symmetrically distributed limit springs 814. The unlocking component 82 includes an extrusion block 821, which is distributed on the inner side of the mold side plate 6, and the extrusion block 821 contacts the outer side of the trapezoidal plate 812. The bottom of the extrusion block 821 is fixedly connected to a pressure rod 822, and the bottom of the pressure rod 822 is fixedly connected to a return spring 823. The end of the return spring 823 away from the pressure rod 822 is fixedly connected to the bottom of the mold side plate 6. The positioning component 83 includes a convex groove 83 1 and a round head positioning groove 8311, the convex groove 831 is circumferentially distributed on the outside of the mounting groove 101, the inner side of the convex groove 831 is fixedly connected to a fixing rod 833, and a slider 834 is slidably connected to the fixing rod 833. The outer side of the slider 834 is fixedly connected to a connecting arm 835, and the end of the connecting arm 835 away from the slider 834 is fixedly connected to the upper side plate 6 of the mold, and a groove 836 is provided on the inner side of the convex groove 831. A symmetrically distributed guide rod 837 is fixedly connected to the inner side of the groove 836, and a slide plate 838 is slidably connected to the guide rod 837. A compression spring 839 is fixedly connected to one side of the slide plate 838, and the end of the compression spring 839 away from the slide plate 838 is fixedly connected to the inner side of the groove 836. The end of the slide plate 838 away from the compression spring 839 is fixedly connected to the round head positioning rod 8310, and the round head positioning groove 8311 is provided on the slider 834;

[0041] When the pressing rod 822 moves downward, it contacts the bottom inner wall of the mounting groove 101. At this time, the pressing rod 822 moves upward under the pressure of the mounting groove 101. The pressing rod 822 moves and drives the extrusion block 821 to move upward and squeeze the return spring 823. The extrusion block 821 moves upward to squeeze the trapezoidal plate 812. At this time, the trapezoidal plate 812 is squeezed by the extrusion block 821 and moves along the limit rod 813 in the direction away from the slot 811. The trapezoidal plate 812 moves and squeezes the limit spring 814, and drives the insert rod 81 to separate from the slot 811. At this time, the mold side plate 6 is separated from the mold bottom plate 4. When the mold side plate 6 moves, the mold side plate 6 will also drive The connecting arm 835 moves, and the movement of the connecting arm 835 drives the slider 834 to move along the fixed rod 833. In the process of the pressure rod 822 moving to the bottom of the installation groove 101, the slider 834 will pass through the round head positioning rod 8310 and squeeze the round head positioning rod 8310. After being squeezed, the round head positioning rod 8310 will move along the guide rod 837. The round head positioning rod 8310 moves to squeeze the compression spring 839. When the round head positioning groove 8311 on the slider 834 moves to the position of the round head positioning rod 8310, the round head positioning rod 8310 moves in the opposite direction under the action of the compression spring 839, thereby inserting into the round head positioning groove 8311 on the slider 834. At this time, the position of the slider 834 is fixed by the round head positioning rod 8310. At the same time, the position of the connecting arm 835 and the mold side plate 6 are fixed together, thereby completing the separation and fixation of the mold side plate 6 and the mold bottom plate 4.

[0042] Example 4, see Figures 1-9 , different from the above-mentioned embodiment 3, the lifting mechanism 5 includes a limit frame 51 and a bent pipe 52, the limit frame 51 is fixedly connected to the fixed frame 31, and the limit frame 51 is slidably connected to the top plate 53, the hydraulic cylinder 32 is fixedly connected to the top plate 53, the bent pipe 52 is installed on the forging machine 1, and the bent pipe 52 is distributed at both ends of the mounting groove 101, and the inner ends of the bent pipe 52 are slidably connected to a protruding rod 54 and a push rod 55, respectively, and a return spring 56 is fixedly connected to the protruding rod 54, and the end of the return spring 56 away from the protruding rod 54 is fixedly connected to the bent pipe 52, and the end of the push rod 55 away from the bent pipe 52 is fixedly connected to the top plate 53, and the push rod 55 is fixedly connected to the fixing spring 57, and the end of the fixing spring 57 away from the push rod 55 is fixedly connected to the bent pipe 52. When the mold side plate 6 moves downward, it can drive the protruding rod 54 to move downward. The bent pipe 52 is filled with hydraulic oil, and the hydraulic oil is distributed between the protruding rod 54 and the push rod 55.

[0043] When the mold base plate 4 moves, it drives the mold side plate 6 to move downward together. After the mold side plate 6 moves, it will contact the protruding rod 54 on the bend 52 and drive the protruding rod 54 to move downward. The protruding rod 54 moves downward to squeeze the return spring 56 and transmit the pressure to the hydraulic oil in the bend 52, and then transmit the pressure to the push rod 55 through the hydraulic oil. At this time, the push rod 55 is pushed out and moves upward. The movement of the push rod 55 drives the top plate 53 to move along the limit frame 51. The movement of the top plate 53 drives the forging mechanism 3 and the forging head 2 to move upward as a whole. At this time, the forging head 2 no longer generates a large pressure on the mold base plate 4. At this time, overload protection is achieved for the forging head 2 and the forging mold.

[0044] It should be noted that after the die side plate 6 contacts the protruding rod 54 , the stroke of the forging head 2 reaches a maximum value, so that the hydraulic cylinder 32 will no longer drive the forging head 2 to move.

[0045] Example 5, see Figures 1-9 , which is different from the above-mentioned fourth embodiment, the demoulding mechanism 7 includes an inner groove 71 and a cylindrical groove 72. The inner groove 71 is provided on the mold base plate 4, and the cylindrical groove 72 is provided in the forging machine 1. A demoulding spring 73 is fixedly connected to the inner side of the cylindrical groove 72. The end of the demoulding spring 73 away from the cylindrical groove 72 is fixedly connected to a demoulding rod 74. The end of the demoulding rod 74 away from the demoulding spring 73 passes through the cylindrical groove 72 and the mold base plate 4 and is fixedly connected to a demoulding plate 75. The demoulding plate 75 can be retracted into the inner groove 71.

[0046] When in use, the workpiece is placed on the stripper plate 75. When the forging head 2 moves downward, the forging head 2 first contacts the raised stripper plate 75, then squeezes the stripper plate 75, and drives the stripper plate 75 and the workpiece to move downward together. The stripper plate 75 moves and is received in the inner groove 71, and then with the cooperation of the mold base plate 4, the mold side plate 6 and the forging head 2, the forging forming of the workpiece is realized. During overload forging, the stripper plate 75 is continuously squeezed by the forging head 2. When the forging head 2 drives the mold base plate 4 to move downward, the stripper plate 75 is also driven to move downward. The downward movement of the stripper plate 75 drives the stripper rod 74 to squeeze the stripper spring 73. After the forging head 2 is separated from the mold base plate 4, the stripper plate 75 drives the workpiece on the mold base plate 4 to separate from the mold base plate 4 under the action of the stripper spring 73, thereby completing the demolding of the workpiece.

[0047] A forging method for a camshaft S head uses the forging equipment mentioned above.

[0048] 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 forging equipment, comprising a forging machine, wherein the forging machine is provided with a forging head and a forging mechanism, wherein the forging mechanism is used to drive the forging head downward for forging, characterized in that: The forging machine is provided with a die base plate, and die side plates are provided around the die base plate. The die base plate and the die side plates are combined to form a forging die, and a guide collapse column, a lifting spring and a demoulding mechanism are provided at the bottom of the die base plate. The guide collapse column is used to guide the die base plate to move downward, the lifting spring is used to push the die base plate to move upward, the demoulding mechanism is used to demould the workpiece, and the die side plates are provided with a connecting mechanism; The connecting mechanism includes an insert rod, an unlocking assembly, and a positioning assembly. The insert rods are linearly arrayed on the mold side plate. The unlocking assembly is used to drive the insert rods to move. During overload forging, the forging mechanism drives the unlocking assembly to operate, thereby driving the insert rods to separate from the mold bottom plate. At the same time, the forging mechanism drives the positioning assembly to reposition the position of the mold side plate. The forging machine is also provided with a lifting mechanism, and when the die side plate moves downward, the lifting mechanism is driven to lift and move the entire position of the forging mechanism upward.

2. A forging device according to claim 1, characterized in that: A mounting groove is provided on the forging machine, one end of the guide collapse column and the lift spring are fixedly connected to the inner side of the mounting groove, and the other end of the guide collapse column and the lift spring are fixedly connected to the bottom of the mold base plate.

3. A forging device according to claim 1, characterized in that: The forging mechanism includes a fixed frame and a hydraulic cylinder, the fixed frame is fixedly connected to the forging machine, the hydraulic cylinder is distributed on the fixed frame, the output shaft of the hydraulic cylinder passes through the fixed frame and is fixedly connected to a limit plate, the limit plate is slidably connected to the fixed frame, and the forging head is fixedly connected to the limit plate.

4. A forging device according to claim 1, characterized in that: A slot is inserted into the outer side of the insertion rod, and the slot is opened on the mold bottom plate. The end of the insertion rod away from the slot passes through the mold side plate and is fixedly connected to a trapezoidal plate. The outer side of the trapezoidal plate is slidably connected to a limit rod, and the limit rod is fixedly connected to the inner side of the mold side plate. The outer side of the trapezoidal plate is also fixedly connected to symmetrically distributed limit springs.

5. A forging device according to claim 4, characterized in that: The unlocking assembly includes an extrusion block, which is distributed on the inner side of the mold side plate and abuts against the outer side of the trapezoidal plate. The bottom of the extrusion block is fixedly connected to a pressure rod, and the bottom of the pressure rod is fixedly connected to a return spring. The end of the return spring away from the pressure rod is fixedly connected to the bottom of the mold side plate.

6. A forging device according to claim 2, characterized in that: The positioning assembly includes a convex groove and a round head positioning groove, the convex groove is distributed circumferentially on the outside of the mounting groove, the inner side of the convex groove is fixedly connected to a fixing rod, a slider is slidably connected to the fixing rod, a connecting arm is fixedly connected to the outer side of the slider, and the end of the connecting arm away from the slider is fixedly connected to the mold side plate.

7. A forging device according to claim 6, characterized in that: A groove is provided on the inner side of the convex groove, and a symmetrically distributed guide rod is fixedly connected to the inner side of the groove. A slide is slidably connected to the guide rod, and a compression spring is fixedly connected to one side of the slide. The end of the compression spring away from the slide is fixedly connected to the inner side of the groove, and the end of the slide away from the compression spring is fixedly connected to a round head positioning rod, and the round head positioning groove is provided on the slider.

8. A forging device according to claim 7, characterized in that: The lifting mechanism includes a limit frame and a bent pipe, the limit frame is fixedly connected to the fixed frame, and the limit frame is slidably connected to a top plate, the hydraulic cylinder is fixedly connected to the top plate, the bent pipe is distributed in the mounting groove, and the bent pipe is distributed at both ends of the mounting groove, the inner ends of the bent pipe are respectively slidably connected with a convex rod and a push rod, the convex rod is fixedly connected with a return spring, the return spring is fixedly connected to the bent pipe at one end away from the convex rod, the push rod is fixedly connected to the top plate at one end away from the bent pipe, the push rod is fixedly connected with a fixing spring, and the fixing spring is fixedly connected to the bent pipe at one end away from the push rod. When the mold side plate moves downward, it can drive the convex rod to move downward.

9. The forging equipment according to claim 1, characterized in that: The demoulding mechanism includes an inner groove and a cylindrical groove. The inner groove is opened on the mold bottom plate, and the cylindrical groove is opened in the forging machine. A demoulding spring is fixedly connected to the inner side of the cylindrical groove. The end of the demoulding spring away from the cylindrical groove is fixedly connected to a demoulding rod. The end of the demoulding rod away from the demoulding spring passes through the cylindrical groove and the mold bottom plate and is fixedly connected to a demoulding plate. The demoulding plate can be retracted into the inner groove.

10. A forging method for a camshaft S head, characterized in that: The forging equipment according to any one of claims 1 to 9 is used.

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