Composite ejection device special for forging press

Abstract

The utility model discloses a special composite ejection device for a forging press, which comprises a forging press body, a supporting mechanism arranged in the forging press body, a placing mechanism arranged above the supporting mechanism, an ejection mechanism arranged below the supporting mechanism, the supporting mechanism comprises a first supporting plate, a first groove is arranged on the surface of the first supporting plate, and a second groove is arranged on the surface of the first supporting plate. The placing mechanism comprises two sets of placing plates which are symmetrically arranged, the two outer side faces, forming an included angle, of each placing plate are each provided with a second groove, the ejection mechanism comprises a cross ejection plate, and the shape of the cross ejection plate corresponds to that of the first cross through groove. According to the forging and pressing device, a section of forging and pressing buffering distance is provided for the first supporting plate through the first spring, a workpiece can bear more uniform pressure, and therefore the better forming effect is achieved, in addition, the surface of the workpiece can be smoother through descending of the first supporting plate, and the defects of pits or protrusions and the like are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging presses, in particular to a special composite ejection device for forging presses. Background Art

[0002] Forging press is a hydraulic press or mechanical press for forging hot metal. Also called Jinchen forging press, it is widely used in precision forging, precision blanking of gear processing, motor processing, bearing processing, automobile factories, motorcycle factories, crankshaft processing plants, rolling mills and other industries.

[0003] The forging ejection mechanisms generally used in forging presses are all cylinders or hydraulic ejection mechanisms built into the equipment, and all of them adopt a single-point straight-through ejection method. Usually, when designing the mold or mold base, a straight-through hole or key block is used to transmit the ejection force to the mold cavity at a single point, thereby achieving single-point ejection or linear ejection of the forging in the mold cavity.

[0004] In the related art, a composite ejection device dedicated to a forging press machine with patent number CN213794041U comprises a workbench and an upper die seat, the inner bottom wall of the workbench is fixedly connected with a double-head motor, the outer surface of the threaded rod is threadedly connected with a threaded sleeve, the surface of the threaded sleeve is fixedly connected with a moving block, one end of the rotating shaft is movably connected with a connecting rod, and the upper end of the support rod is fixedly connected with a connecting block.

[0005] The ejection method used in the above device is still a simple single ejector rod or ejector plate, and its ejection force and position are difficult to control, which can easily cause deformation or damage to the workpiece, and vibration will be generated during the forging process, which will damage the component. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a special composite ejection device for a forging press.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite ejection device dedicated to a forging press, comprising a forging press body, a supporting mechanism is arranged inside the forging press body, a placing mechanism is arranged above the supporting mechanism, an ejection mechanism is arranged below the supporting mechanism, the supporting mechanism comprises a supporting plate 1, a groove 1 is opened on the surface of the supporting plate 1, a cross-shaped through groove 1 is opened in the groove 1, the placing mechanism comprises two groups of symmetrically arranged placing plates, two outer side surfaces of the placing plates that form an angle with each other are both provided with groove 2, and the ejection mechanism comprises a cross-shaped top plate, and the shape of the cross-shaped top plate corresponds to the cross-shaped through groove 1.

[0008] Optionally, a second telescopic cylinder is fixedly provided in the middle of the inner bottom surface of the forging press body, and the cross-shaped top plate is fixedly mounted on the upper end surface of the piston rod of the second telescopic cylinder.

[0009] Optionally, two groups of support columns are symmetrically fixedly arranged on the inner bottom surface of the forging press body, and a spring 1 which is sleeved on the surface of the support column is fixedly connected between the support plate 1 and the inner bottom surface of the forging press body.

[0010] Optionally, two groups of cylinders sliding on the surface of the support column are symmetrically fixedly provided on the lower surface of the support plate 1, a connecting ring is fixedly provided on the bottom surface of the support column, and a spring 2 is fixedly connected between the connecting ring and the cylinder.

[0011] Optionally, two groups of double-headed telescopic cylinders 1 are symmetrically fixedly arranged in the groove 1, and push plates are fixedly arranged at the outer ends of the piston rods on both sides of the double-headed telescopic cylinders 1. The push plates are slidably arranged in the groove 2, and a spring 3 is fixedly connected between the push plates and the inner wall of the groove 2.

[0012] Optionally, two groups of L-shaped through grooves 2 are symmetrically opened in the groove 1, and a limiting shaft is fixedly provided on the lower surface of the placement plate, and the limiting shaft is slidably provided in the L-shaped through groove 2.

[0013] Optionally, a support platform is fixedly provided on the outer side of the forging press body, and the upper surface of the support platform is located on the same horizontal plane as the upper surface of the support plate 1 in the non-forging state.

[0014] Optionally, a lead screw 1 and a fixed shaft are symmetrically arranged on the side of the forging press body, the lead screw 1 is rotationally matched with the forging press body, and the fixed shaft is fixedly matched with the forging press body, and a motor 1 whose output shaft is fixedly matched with the lead screw 1 is fixedly arranged on the outer side of the forging press body, and a sliding frame is threadedly arranged on the surface of the lead screw 1, and the other end of the sliding frame is slidably arranged on the surface of the fixed shaft.

[0015] Optionally, a two-way lead screw 2 is rotatably arranged in the sliding frame, and a motor 2 with an output shaft fixedly matched with the two-way lead screw 2 is fixedly arranged in the sliding frame, and a splint is symmetrically threaded on the surface of the two-way lead screw 2.

[0016] In summary, compared with the prior art, the composite ejector device for a forging press provided by the utility model has the following beneficial effects:

[0017] In the utility model, a forging buffer distance is provided to the support plate 1 by the spring 1, so that the workpiece is subjected to a more uniform pressure, thereby obtaining a better forming effect. In addition, the descent of the support plate 1 can also make the surface of the workpiece smoother, avoiding undesirable phenomena such as depressions or protrusions;

[0018] In the utility model, when the support plate 1 is pressed down by the punch head and then drops to a certain distance, the spring 1 will be compressed to the limit position, and then the workpiece starts to be forged. At this time, the spring 2 located between the cylinder and the connecting ring can help to reduce the vibration generated by the downward forging of the upper punch head, which can improve the forging effect of the workpiece.

[0019] In the utility model, during the separation process of the four placement plates, the workpiece and the placement plates can be initially separated to prevent the workpiece from being adhered to the surface of the placement plates due to forging, and then the cross-shaped top plate is pushed by the second telescopic cylinder to eject the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an isometric view of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 The structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 4 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 5 The structure of the utility model is shown in FIG. Figure 3 ;

[0025] Figure 6 The structure of the utility model is shown in FIG. Figure 4 . DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0027] Embodiment 1:

[0028] refer to Figure 1-2 A composite ejector device dedicated to a forging press comprises a forging press body 1, two groups of support columns 23 are symmetrically and fixedly arranged on the inner bottom surface of the forging press body 1, a support plate 21 is slidably arranged on the surface of the support column 23, a groove 22 is opened on the surface of the support plate 21, two groups of mutually symmetrical placement plates 31 are slidably arranged in the groove 22, and the four placement plates 31 can be separated and merged. When merged, the workpiece can be supported for forging. When separated, it is convenient to eject the forged workpiece through the ejector below. The function of the placement plate 31 is the same as that of the forging die seat, which is used to help the workpiece forging and forming.

[0029] refer to Figure 2 A spring 24 sleeved on the surface of the support column 23 is fixedly connected between the support plate 21 and the inner bottom surface of the forging press body 1. The spring 24 can help the support plate 21 to reset and also provide a forging buffer distance.

[0030] Furthermore, when forging the workpiece, after the punch head contacts the workpiece on the surface of the placement plate 31, the support plate 21 drives the placement plate 31 to drop a certain distance, so that the punch head is in full contact with the workpiece, and the workpiece is pre-pressed before punching to increase the deformation and forming effect of the workpiece. In addition, pre-pressing can also make the surface of the workpiece smoother, avoiding undesirable phenomena such as dents or bulges. At the same time, pre-pressing can also reduce the heat generated by the workpiece during the stamping process, avoiding problems such as deformation or cracks of the workpiece.

[0031] refer to Figure 2-3 Two groups of cylinders 211 sliding on the surface of the support column 23 are symmetrically fixed on the lower surface of the support plate 21, and a connecting ring 25 is fixed on the bottom surface of the support column 23. A spring 251 is fixedly connected between the connecting ring 25 and the cylinder 211. The spring 251 and the spring 1 24 can help to mitigate the vibration generated by the descending forging of the upper punch head, thereby improving the forging forming effect of the workpiece.

[0032] Furthermore, when the punch head descends, it presses down on the support plate 21, which will compress the spring 24 and the spring 251 at the same time. Since the spring 251 is shorter than the spring 24, the spring 251 will reach the compression limit position earlier than the spring 24. When the spring 251 reaches the limit compression position, the punch head starts to perform a thorough forging process on the workpiece. At this time, the spring 24 is not compressed to the limit position, and the spring 251 has good elasticity and will not be damaged due to excessive pressure.

[0033] refer to Figure 2-4 A double-headed telescopic cylinder 1 33 is fixedly set at the center position of the four inner walls in the groove 1 22, and push plates 34 are fixedly set at the outer ends of the piston rods on both sides of the double-headed telescopic cylinder 1 33. The two outer side surfaces of the placement plate 31 that form an angle with each other are provided with grooves 2 32. The push plate 34 is slidably set in the groove 2 32. A spring 35 is fixedly connected between the push plate 34 and the inner wall of the groove 2 32. The spring 35 is used to help the placement plate 31 to reset after moving. The push plate 34 can be driven to move by the double-headed telescopic cylinder 1 33, thereby driving the placement plate 31 to slide in the groove 1 22.

[0034] refer to Figure 2-5A cross-shaped through groove 1 212 is opened at the center position of the groove 1 22, and two groups of L-shaped through grooves 213 are symmetrically opened in the groove 1 22. A limiting column 311 is fixedly set on the lower surface of the placement plate 31, and the limiting column 311 is slidably set in the L-shaped through groove 213. The limiting column 311 is used to ensure the stable movement of the placement plate 31.

[0035] refer to Figure 2-5 A telescopic cylinder 2 51 is fixedly arranged in the middle of the inner bottom surface of the forging press body 1, and a cross-shaped top plate 52 is fixedly arranged on the upper end of the piston rod of the telescopic cylinder 2 51. The cross-shaped top plate 52 can better make the workpiece evenly stressed and facilitate the ejection of the workpiece. The cross-shaped top plate 52 slides in the cross-shaped through groove 2. When the four placement plates 31 are separated, the cross-shaped ejector rod is driven by the telescopic cylinder 2 51 to eject the workpiece.

[0036] Furthermore, when forging the workpiece, the telescopic cylinder 251 will drive the cross-shaped push rod and the support plate 21 to perform synchronous lifting and lowering movements. When the workpiece is forged, the support plate 21 is reset by the spring 24. At this time, the two opposite double-headed telescopic cylinders 33 in the groove 22 are started to drive the push plate 34 to move the two sets of symmetrical placement plates 31 horizontally. At the same time, the limit column 311 moves in the L-shaped through groove 213. At this time, the cross-shaped through groove 212 will reveal a horizontal through groove. Slot, and then start the double-headed telescopic cylinder 1 33 on the other two sides, so that the push plate 34 drives the two symmetrical placement plates 31 to move vertically. At this time, the limit column 311 in the L-shaped through groove 213 will also move accordingly, and then the cross-shaped through groove 1 212 will be completely exposed, and in the process of separating the placement plates 31, the workpiece and the placement plates 31 will also be initially separated to prevent the workpiece from being adhered to the surface of the placement plates 31 due to forging and pressing. Then start the telescopic cylinder 2 51 to make the cross-shaped top plate 52 eject the workpiece.

[0037] Embodiment 2:

[0038] refer to Figure 1 A support platform 11 is fixedly arranged on the outer side of the forging press body 1, and the upper surface of the support platform 11 is located on the same horizontal plane as the upper surface of the support plate 21 in the non-forging state.

[0039] refer to Figure 3A lead screw 431 and a fixed shaft 42 are symmetrically arranged on the side of the forging press body 1. The lead screw 431 is rotationally matched with the forging press body 1, and the fixed shaft 42 is fixedly matched with the forging press body 1. A motor 43 whose output shaft is fixedly matched with the lead screw 431 is fixedly arranged on the outer side of the forging press body 1. A sliding frame 41 is threadedly arranged on the surface of the lead screw 431, and the other end of the sliding frame 41 is slidably arranged on the surface of the fixed shaft 42. The rotation of the lead screw 431 is driven by the motor 43, which can drive the sliding frame 41 to slide on the surface of the support plate 21.

[0040] refer to Figure 3 A bidirectional lead screw 44 is rotatably arranged in the sliding frame 41, and a motor 45 whose output shaft is fixedly matched with the bidirectional lead screw 44 is fixedly arranged in the sliding frame 41. A clamping plate 46 is symmetrically threaded on the surface of the bidirectional lead screw 44. The motor 45 drives the rotation of the bidirectional lead screw 44, thereby driving the clamping plates 46 on both sides to move relative to each other, so as to facilitate the clamping of the workpiece.

[0041] Furthermore, the workpiece to be forged is placed on the support table 11, and then the workpiece is clamped by the clamp 46. The workpiece is moved to a position directly below the punch head by moving the sliding frame 41, and then the workpiece is separated from the clamp 46. This can improve the safety of the working environment, and the workpiece is transported to a position directly below the punch head, which can improve the forging effect of the workpiece.

[0042] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0043] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0044] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A composite ejector device for a forging press, characterized in that: The forging press comprises a forging press body (1), wherein a support mechanism (2) is arranged inside the forging press body (1), a placement mechanism (3) is arranged above the support mechanism (2), and an ejection mechanism (5) is arranged below the support mechanism (2). The support mechanism (2) comprises a support plate (21), a surface of the support plate (21) is provided with a groove (22), a cross-shaped through groove (212) is provided in the groove (22), The placement mechanism (3) comprises two groups of symmetrically arranged placement plates (31), and two outer sides of the placement plates (31) which are angled with each other are each provided with a second groove (32). The ejection mechanism (5) comprises a cross-shaped top plate (52), and the shape of the cross-shaped top plate (52) corresponds to the cross-shaped through slot 1 (212).

2. A composite ejector device for forging press according to claim 1, characterized in that: A second telescopic cylinder (51) is fixedly arranged in the middle of the inner bottom surface of the forging press body (1), and the cross-shaped top plate (52) is fixedly installed on the upper end surface of the piston rod of the second telescopic cylinder (51).

3. A composite ejector device for forging press according to claim 1, characterized in that: Two groups of support columns (23) are symmetrically fixedly arranged on the inner bottom surface of the forging press body (1), and a spring (24) sleeved on the surface of the support column (23) is fixedly connected between the support plate (21) and the inner bottom surface of the forging press body (1).

4. A composite ejector device for forging press according to claim 3, characterized in that: The lower surface of the support plate 1 (21) is symmetrically fixed with two groups of cylinders (211) that slide on the surface of the support column (23), and the bottom surface of the support column (23) is fixed with a connecting ring (25), and a spring 2 (251) is fixedly connected between the connecting ring (25) and the cylinder (211).

5. The composite ejector device for forging press according to claim 1, characterized in that: Two groups of double-head telescopic cylinders (33) are symmetrically fixedly arranged in the groove (22), and push plates (34) are fixedly arranged at the outer ends of the piston rods on both sides of the double-head telescopic cylinders (33). The push plates (34) are slidably arranged in the groove (32), and a spring (35) is fixedly connected between the push plates (34) and the inner wall of the groove (32).

6. A composite ejector device for forging press according to claim 1, characterized in that: Two groups of L-shaped through grooves (213) are symmetrically provided in the groove (22); a limiting column (311) is fixedly provided on the lower surface of the placement plate (31); and the limiting column (311) is slidably provided in the L-shaped through grooves (213).

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