Punching machine mechanism capable of reliably demolding forge piece

Abstract

The utility model discloses a punching machine mechanism capable of reliably demolding a forge piece, and belongs to the technical field of punching machines. The technical problem of reliable demolding of forgings is solved. According to the technical scheme, a mold mechanism comprises an outer mold base, an inner mold core, a shaft sleeve body and a telescopic executing mechanism, a sliding block is fixedly connected with a bottom plate through a guide rod, the guide rod penetrates through a guide hole in a workbench, the bottom plate is located below the workbench, the telescopic executing mechanism is fixedly connected to the bottom plate, and a telescopic rod of the telescopic executing mechanism is fixedly connected with an ejector rod; the ejector rod penetrates through the shaft sleeve body to reach a cavity of the inner mold core to eject a forge piece, the bottom plate and the sliding block synchronously ascend and descend and are used for pushing the shaft sleeve body, the multiple inner mold cores are arranged in the circumferential direction and matched with the outer mold base to do opening and closing telescopic motion, and the shaft sleeve body is matched with the bottoms of the inner mold cores to eject the inner mold cores; the first spring is used for keeping abutting against the inner mold core when the first punch is not completely separated from the inner mold core. The demolding mechanism has the effect of being reliable and efficient in demolding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging press, in particular to a reliable forging press mechanism. BACKGROUND

[0002] At present, the Chinese patent with publication (announcement) number CN214768177U discloses a punch press rotary disc mechanism and punch press, wherein the punch press rotary disc mechanism comprises a base, a lower rotary disc rotatably arranged above the base, a gear disc coaxially fixed to the lower rotary disc and arranged between the base and the lower rotary disc, a servo system driving assembly comprising a servo motor, and a transmission gear installed to the output end of the servo motor and engaged with the gear disc. The servo control system is in communication with the scheduling system, and the scheduling control system can process and transmit the punching and shearing data of the punch press. When the servo control system receives the punching and shearing angle information, the servo motor can drive the transmission gear to rotate according to the punching and shearing angle. The transmission gear is engaged with the gear disc coaxially fixed to the outer circle of the lower rotary disc. When the transmission gear rotates, the lower rotary disc is automatically rotated to the required punching and shearing angle by the gear disc. This operation is automatically controlled by the system.

[0003] It can be seen that the punch press is also widely used, and some are used for blanking workpieces. The punch press mainly includes a hydraulic power mechanism, a rack, a slide block, a punch, a die, and a workbench. The rack is the main structure of the punch press, responsible for supporting and fixing other components. The slide block is located at the top of the punch press, bearing and applying impact force or punching force, driven by the hydraulic power mechanism. The punch is fixed on the slide block, directly completing the impact or punching of metal materials. The die is located between the punch and the workbench, providing the required shape and size for metal materials. The workbench is fixed on the rack, supporting and positioning metal materials and dies.

[0004] Here, for forging processing, it is not easy to convert the above-mentioned equipment to forging conditions, and it cannot be adapted. For the processing of forgings, first, the initial iron block is heated to red, then it is subjected to a first forging, and then it is placed in a die to shape and forge, and after forging, it needs to be demolded and forged again. It is found that when the forging is placed in the die for shaping and forging, the impact force is relatively large, and the shaped forging is easy to adhere to the punch, causing smooth demolding, so it needs to be improved. Practical new type content

[0005] In order to solve the above technical problems and shortcomings: how to quickly and reliably demold the forging, the present application provides a reliable forging press mechanism for demolding the forging, which has the advantages of avoiding adhesion of the forging and reliable demolding.

[0006] To achieve the above object and other related objects, the present application adopts the following technical solution:

[0007] The utility model provides a kind of reliable knockout of forging press mechanism of stamping machine, including frame, slider, first punch, die mechanism and workbench, workbench is fixed below frame, workbench fixed die mechanism, the first punch is installed on slider, slider is carried out up and down stamping movement by frame, the die mechanism includes outer die seat, inner die core, shaft sleeve body, telescopic execution mechanism, the slider is fixedly connected bottom plate by guide rod, guide rod passes through the guide hole on workbench, bottom plate is below workbench, telescopic execution mechanism is fixedly connected on bottom plate, the telescopic rod of telescopic execution mechanism is fixedly connected top rod, top rod passes through shaft sleeve body and reaches the cavity of inner die core for knockout forging, bottom plate and slider synchronous lifting are used for pushing shaft sleeve body,

[0008] Inner die core is circumferentially provided with a plurality of and cooperates on outer die seat to open and close telescopic action, shaft sleeve body cooperates at the bottom of inner die core for knockout inner die core,

[0009] First spring is provided on slider, and the first spring is used to keep in contact with the inner die core when the first punch is not completely separated from the inner die core.

[0010] Preferably, the guide rod is provided with left and right two, respectively symmetrically arranged on both sides of the die mechanism.

[0011] Preferably, the inner die core is provided with four, and the four inner die cores have tapered surfaces, which slide outward when the shaft sleeve body is upward.

[0012] Preferably, the contact surface of the inner die core and the shaft sleeve body is provided as an inclined surface, and the inner die core is flush with the upper surface of the outer die seat when it is in the outer die seat.

[0013] Preferably, the shaft sleeve body includes an upper shaft sleeve and a lower shaft sleeve, the upper end of the upper shaft sleeve has a first limiting ring, the upper end of the lower shaft sleeve has a second limiting ring, the upper shaft sleeve and the lower shaft sleeve are threadedly sleeved with each other, the first limiting ring and the second limiting ring form an annular first sliding groove therebetween, the inner die core is provided with a second sliding groove matched with the first limiting ring, and the top of the second limiting ring supports the bottom of the inner die core.

[0014] Preferably, the slider is provided with a preforming upper punch, and the workbench is provided with a lower placement seat.

[0015] Preferably, the slider is further provided with a second punch, fixed rods are provided on both sides of the second punch, second springs are sleeved on the fixed rods, the bottoms of the second springs are supported on a movable plate, the fixed rods pass through the movable plate and are prevented from being separated from the fixed rods by nuts, the movable plate is further provided with a long waist hole, and the workbench is provided with a limiting rod for supporting and limiting the falling position of the movable plate.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] 1、The slider moves up and down, so that the first punch can stamp the forging, the forging is placed in the inner mold core, the inner mold core clamps and shapes the forging, the shaft sleeve body pushes the inner mold core upward, so that the inner mold core expands while rising, so that the forging is better placed in it, when the slider descends, at this time the inner mold core also descends and gathers, so that the inner mold core clamps the forging, the first punch stamps the forging, at this time the forging has a sticky force on the first punch after deformation, because the slider has the first spring, at this time the first spring abuts against the inner mold core, so that the inner mold core is always in the outer mold seat, until the first punch completely separates from the forging, the slider continues to move upward, so that the first punch is away, and then the bottom plate lifts the shaft sleeve body to make the inner mold core rise, and then the telescopic actuator pushes the ejector rod to eject the forging;

[0018] 2、The guiding rod not only realizes linkage of the bottom plate, but also enables the bottom plate to move more stably, and the slider realizes synchronous action with the bottom plate through the guiding rod;

[0019] 3、The inner mold core can slide by its own gravity, and the conical surface and the matched inclined surface can make the inner mold core rise and fall and open and close synchronously;

[0020] 4、The shaft sleeve body can also have other structures, and is realized by using the upper shaft sleeve and the lower shaft sleeve, so that assembly is convenient, and the corresponding inner membrane core can be matched to realize upward and downward pushing and opening and closing actions;

[0021] 5、In order to improve the efficiency and reliability of forging, the upper punch and the lower placing seat are added to pre-forging, and the second punch is used for the last third forging. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural principle diagram of the embodiment one of the present application;

[0023] Figure 2 is a second state schematic view of Figure 1 ;

[0024] Figure 3 is a third state schematic view of Figure 1 ;

[0025] Figure 4 is a structural schematic view of the embodiment two;

[0026] Figure 5 is a structural schematic view of the embodiment three;

[0027] Figure 6 is a structural schematic view of another view of Figure 5 .

[0028] Explanation of reference numerals of main components:

[0029] 1, frame; 2, sliding block; 3, first punch; 4, die mechanism; 41, outer die seat; 42, inner die core; 421, conical surface; 43, shaft sleeve body; 44, telescopic actuating mechanism; 45, ejector rod; 5, workbench; 51, guide hole; 7, bottom plate; 8, guide rod; 9, first spring; 10, inclined surface; 11, joint; 12, upper shaft sleeve; 121, first limiting ring; 13, lower shaft sleeve; 131, second limiting ring; 14, first sliding groove; 15, second sliding groove; 16, upper punch; 17, lower placement seat; 18, second punch; 19, fixed rod; 20, second spring; 21, movable plate; 22, nut; 23, long waist hole; 24, limiting rod. DETAILED DESCRIPTION

[0030] The present application will be described in greater detail by way of specific embodiments, from which the skilled person will readily appreciate other advantages and functionalities of the present application disclosed in the description. The present application can also be implemented or applied in other different embodiments, and the details in the description can be modified or changed in various ways without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0031] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and the drawings only show the components related to the present application, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component can be changed arbitrarily when actually implemented, and the layout pattern of the components can also be more complex.

[0032] The specific embodiments of the present application will be further described below in conjunction with the drawings.

[0033] Embodiment one:

[0034] The embodiment of the present application discloses a punch mechanism for reliable demolding of forgings, which comprises a frame 1, a sliding block 2, a first punch 3, a die mechanism 4, and a workbench 5. Referring to Figure 1 The workbench 5 is fixed below the frame 1, the workbench 5 fixes the die mechanism 4, the uppermost part of the die mechanism 4 is the first punch 3, the first punch 3 is installed on the sliding block 2, and the sliding block 2 performs up and down stamping movement through the frame 1. These structures are the same in the existing punch mechanism, and the driving principle is also the same, which will not be described again.

[0035] In combination with Figure 1 , Figure 2 and Figure 3It is understood that the improved structure involved in the present application is as follows: the mold mechanism 4 comprises an outer mold base 41, an inner mold core 42, a shaft sleeve body 43, and a telescopic actuating mechanism 44. The slider 2 is fixedly connected to the bottom plate 7 through the guide rod 8, the guide rod 8 passes through the guide hole 51 on the workbench 5, the bottom plate 7 is below the workbench 5, and the bottom plate 7 is fixedly connected to the telescopic actuating mechanism 44. The telescopic actuating mechanism 44 can be a hydraulic cylinder, a pneumatic cylinder, etc. The telescopic rod of the telescopic actuating mechanism 44 is fixedly connected to the ejector rod 45, the ejector rod 45 passes through the shaft sleeve body 43 to reach the cavity of the inner mold core 42 for ejecting the forged piece, and the bottom plate 7 synchronously rises and falls with the slider 2 and is used for pushing the shaft sleeve body 43.

[0036] The inner mold core 42 is circumferentially provided with a plurality of inner mold cores 42 and is matched on the outer mold base 41 to open and close the telescopic action, and the shaft sleeve body 43 is matched at the bottom of the inner mold core 42 to eject the inner mold core 42. The cooperation between the inner mold core 42 and the outer mold base 41 can be sliding surface cooperation or sliding rail and sliding groove structure cooperation to realize sliding. The main purpose is to realize the opening and closing action of the inner mold core 42.

[0037] On the other hand, the first spring 9 is arranged on the slider 2, the upper end of the first spring 9 is fixed on the slider 2, and the lower end of the first spring 9 is suspended. The first spring 9 is used to keep in contact with the inner mold core 42 when the first punch 3 does not completely separate from the inner mold core 42. The first spring 9 can be in contact with the inner mold core when the slider 2 is pressed down.

[0038] In order to make the bottom plate 7 fixed and stable, the guide rod 8 is provided with left and right two, which are respectively and symmetrically arranged on both sides of the mold mechanism 4. Of course, according to the actual situation, a plurality of guide rods 8 can also be arranged.

[0039] In order to realize the opening and closing action between the inner mold cores 42, the inner mold cores 42 are provided with four, the four inner mold cores 42 have tapered surfaces 421, and when the shaft sleeve body 43 ejects the inner mold core 42 upward, the inner mold core 42 slides outward. Specifically, the contact surface between the inner mold core 42 and the shaft sleeve body 43 is an inclined surface 10, the inner mold core 42 is flush with the upper surface of the outer mold base 41 when it is in the outer mold base 41, and the spring is in contact with the joint 11 between the inner mold core 42 and the outer mold base 41.

[0040] In this way, the slider 2 moves up and down, so that the first punch 3 can stamp and shape the forged piece. At the beginning, as shown in Figure 1 The shaft sleeve body 43 supports the inner mold core 42 upward, so that the inner mold core 42 rises out of the table surface of the workbench 5 and expands at the same time, so as to facilitate the better placement of the forged piece therein. As Figure 2As shown, when the slider 2 is lowered, the inner mold core 42 is also lowered and gathered, so that the inner mold core 42 clamps the forging. The forging is placed in the inner mold core 42, which is used for clamping and shaping the forging. Then the slider 2 is lowered, so that the first punch 3 punches the forging, the first spring 9 is compressed, the forging is shaped in the four inner mold cores 42, the first punch 3 punches the forging, at this time the forging has a sticking force on the first punch 3 after deformation. Then the first punch 3 is driven upward by the slider 2, as shown in Figure 3 As shown, because the slider 2 has the first spring 9, at this time the first spring 9 abuts against the inner mold core 42, so that the inner mold core 42 is always in the outer mold seat 41 until the first punch 3 completely separates from the forging. The slider 2 continues to move upward, so that the first punch 3 moves away and returns to the state as shown in Figure 1 Then the bottom plate 7 lifts the sleeve body 43 to make the inner mold core 42 rise, and the extension mechanism 44 pushes the ejector rod 45 to eject the forging, so that the forging can be smoothly demolded.

[0041] Example two:

[0042] Referring to Figure 4 As shown, based on the above-mentioned example one, as another aspect of improvement, the difference lies in the improvement of the cooperation structure of the sleeve body 43 and the outer mold seat 41. Through Figure 4 It is understood that the sleeve body 43 includes an upper sleeve 12 and a lower sleeve 13, the upper end of the upper sleeve 12 has a first limiting ring 121, the upper end of the lower sleeve 13 has a second limiting ring 131, the upper sleeve 12 and the lower sleeve 13 are threadedly sleeved with each other, the first limiting ring 121 and the second limiting ring 131 form a first sliding groove 14 in the form of a ring, the inner mold core 42 is provided with a second sliding groove 15 matched with the first limiting ring 121, and the top of the second limiting ring 131 supports the bottom of the inner mold core 42.

[0043] Therefore, through this structure, the position of the first sliding groove 14 can be adjusted conveniently, and it can be loosened or tightened. Similarly, the up-down movement of the upper sleeve 12 and the lower sleeve 13 can be used to realize the opening and closing action of the inner mold core 42.

[0044] Example three:

[0045] For the overall processing of the forging, the forging is heated to red and then forged and shaped. Pre-forging is needed, so referring to Figure 5 and Figure 6 It is understood that the slider 2 is provided with an upper punch 16 for pre-forging and the workbench 5 is provided with a lower placement seat 17.

[0046] In addition, the slider 2 is further provided with a second punch 18, and fixed rods 19 are arranged on both sides of the second punch 18, the fixed rods 19 are sleeved with second springs 20, the bottom of the second springs 20 is supported on a movable plate 21, the fixed rods 19 pass through the movable plate 21 and are prevented from being separated from the fixed rods 19 by nuts 22, the movable plate 21 is further provided with long waist holes 23, and a limiting rod 24 is arranged on the workbench 5 and is used for supporting and limiting the falling position of the movable plate 21.

[0047] In order to improve the efficiency and reliability of forging, the upper punch 16 and the lower placing seat 17 are used for pre-forging pressing. The second punch 18 is used for the last third forging pressing. When the third forging pressing is performed, the slider 2 is lowered, the second punch 18 is used for stamping the forging, then the movable plate 21 is abutted by the limiting rod 24 and cannot continue to be lowered so as to compress the spring, at this time, the movable plate 21 has the function of positioning and pre-pressing the forging. The forging has a height, first, the movable plate 21 presses the forging, then the second punch 18 stamps the forging and moves upward, in order to facilitate demolding, at this time, the movable plate 21 still presses the forging, until the second punch 18 is completely separated from the forging, then the second punch 18 continues to move upward under the action of the slider 2, at this time, the movable plate 21 is away from the forging.

[0048] The above embodiment only exemplarily illustrates the principle and effect of the present application, and is not used for limiting the present application. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the present application. Therefore, any equivalent change made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A reliable knockout punch mechanism for forging, comprising a frame (1), a slide block (2), a first punch (3), a die mechanism (4), and a workbench (5), the workbench (5) is fixed below the frame (1), the workbench (5) fixes the die mechanism (4), the first punch (3) is directly above the die mechanism (4), the first punch (3) is installed on the slide block (2), the slide block (2) performs up and down stamping movement through the frame (1), characterized in that, The mold mechanism (4) includes an outer mold base (41), an inner mold core (42), a shaft sleeve body (43), and a telescopic actuating mechanism (44), the slider (2) is fixedly connected to the bottom plate (7) through the guide rod (8), the guide rod (8) passes through the guide hole (51) on the workbench (5), the bottom plate (7) is below the workbench (5), the telescopic actuating mechanism (44) is fixedly connected to the bottom plate (7), the telescopic rod of the telescopic actuating mechanism (44) is fixedly connected to the ejector rod (45), the ejector rod (45) passes through the shaft sleeve body (43) to reach the cavity of the inner mold core (42) for ejecting the forged piece, the bottom plate (7) is synchronously lifted with the slider (2) and is used for pushing the shaft sleeve body (43), The inner mold core (42) is circumferentially provided with a plurality of inner mold cores (42) and is matched with the opening and closing telescopic action of the outer mold base (41), the shaft sleeve body (43) is matched with the bottom of the inner mold core (42) and is used for ejecting the inner mold core (42), The first spring (9) is arranged on the slider (2), and the first spring (9) is used for abutting against the inner mold core (42) when the first punch (3) is not completely separated from the inner mold core (42).

2. A press mechanism for reliable knockout of a forged piece according to claim 1, wherein The guide rod (8) is provided with left and right two, respectively, symmetrically arranged on both sides of the mold mechanism (4).

3. A press mechanism for reliable knockout of a forged piece according to claim 1, wherein The inner mold core (42) is provided with four inner mold cores (42), the four inner mold cores (42) have a tapered surface (421), and when the shaft sleeve body (43) pushes the inner mold core (42) upward, the inner mold core (42) slides outward.

4. A press mechanism for reliable knockout of a forged piece according to claim 3, wherein The contact surface of the inner mold core (42) and the shaft sleeve body (43) is provided as an inclined surface (10), the inner mold core (42) is flush with the upper surface of the outer mold base (41) when being in the outer mold base (41), and the spring abuts at the joint (11) of the inner mold core (42) and the outer mold base (41).

5. The press mechanism for reliable knockout of a forging according to claim 1, wherein The shaft sleeve body (43) includes an upper shaft sleeve (12) and a lower shaft sleeve (13), the upper end of the upper shaft sleeve (12) is provided with a first limiting ring (121), the upper end of the lower shaft sleeve (13) is provided with a second limiting ring (131), the upper shaft sleeve (12) and the lower shaft sleeve (13) are threadedly sleeved with each other, the first limiting ring (121) and the second limiting ring (131) form an annular first sliding groove (14) therebetween, the inner mold core (42) is provided with a second sliding groove (15) matched with the first limiting ring (121), and the top of the second limiting ring (131) supports the bottom of the inner mold core (42).

6. A press mechanism for reliable knockout of a forged piece according to claim 1, wherein The slider (2) is provided with a pre-forging upper punch (16), and the workbench (5) is provided with a lower placing seat (17).

7. A press mechanism for reliable knockout of a forged piece according to claim 1, wherein The slider (2) is further provided with a second punch (18), fixed rods (19) are arranged on both sides of the second punch (18), the fixed rods (19) are sleeved with second springs (20), the bottom of the second spring (20) is supported on a movable plate (21), the fixed rods (19) pass through the movable plate (21) and are prevented from being separated from the fixed rods (19) by the nut (22), the movable plate (21) is further provided with a long waist hole (23), and the workbench (5) is provided with a limiting rod (24), the limiting rod (24) is used for supporting and limiting the falling position of the movable plate (21).

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