Movable bearing mechanism for stamping plates

Abstract

The movable bearing mechanism comprises a floating seat and a lower die assembly arranged on a stamping die in a lifting mode, the floating seat is located on the side, away from an overhanging part, of a metal plate stamping part at the discharging end, and the floating seat is connected with a first elastic part driving the floating seat to ascend to protrude out of the upper end face of the lower die assembly. The floating seat is used for supporting a material belt or at least one sheet metal stamping part on the material belt; the supporting piece is movably arranged on the floating seat, and one part of the supporting piece extends out of the side part of the floating seat and can move to be flush with the height of the floating seat so as to support the end part of the overhanging part of the sheet metal stamping piece at the discharging end; the linkage mechanism is connected between the floating seat and the supporting piece, and in the process that the floating seat descends to the position not protruding out of the upper end face of the lower die assembly, the linkage mechanism drives the supporting piece to be away from the metal plate stamping part at the discharging end so that the metal plate stamping part at the discharging end can naturally fall off; and the influence of sagging and shaking of the material belt on the product precision and production is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to a movable supporting mechanism for stamping sheets. Background Art

[0002] In the prior art, the production of sheet metal stamping parts 31 generally adopts a multi-station continuous stamping production method. During the forward movement of the strip 30, the strip 30 is stamped through multiple steps until the sheet metal stamping part 31 that is completely separated from the strip 30 is formed. For the sheet metal stamping part 31 with a relatively small thickness, as Figure 1 shown, the sheet metal stamping part 31 is in a cantilever state of downward bending deformation under the action of gravity at the discharge end position, resulting in inaccurate cutting positions during the rapid stamping process, causing problems such as excessive or insufficient cutting of the trimmed edge, the positioning pin being unable to correctly insert into the positioning hole of the strip 30, and the shaking strip 30 being unable to accurately feed the material.

[0003] The existing method is to add a floating block with an appropriate shape and size below the drooping sheet metal stamping part 31. The floating block supports the lower end face of the sheet metal stamping part 31 to hold the strip 30 steady. However, the sheet metal stamping part 31 located at the discharge end of the stamping die needs to fall by its own gravity after the last step of stamping to complete the discharging. Therefore, the position supported by the floating block must be on one side of the center position of the sheet metal stamping part 31 away from the discharge end. Otherwise, the sheet metal stamping part 31 will have an unsmooth falling situation after separating from the strip 30, and seriously, the subsequent sheet metal stamping parts will be stacked on the sheet metal stamping part 31 that has not fallen, further damaging the stamping die. However, supporting the floating block on one side of the center position of the sheet metal stamping part 31 away from the discharge end cannot fundamentally solve the problem of the drooping of the sheet metal stamping part 31. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the purpose of the utility model is to provide a movable supporting mechanism for stamping sheets. Before the stamping operation, the movable supporting mechanism can support the sheet metal stamping part at the discharge end on the side away from the stamping die to prevent the sheet metal stamping part from bending. During stamping, it can leave the sheet metal stamping part to enable the sheet metal stamping part to fall naturally, fundamentally solving the influence of the drooping and shaking of the strip on the product accuracy and production.

[0005] An active supporting mechanism for stamping sheets according to an embodiment of the present utility model includes: a floating seat, which is lifted and lowered in the lower die assembly of the stamping die. The floating seat is located on one side of the sheet metal stamping part at the discharging end away from the overhanging part. The floating seat is connected with a first elastic member that drives it to rise above the upper end surface of the lower die assembly. The floating seat is used to support the strip or at least one sheet metal stamping part on the strip; a supporting member, which is movably arranged on the floating seat. A part of the supporting member extends from the side of the floating seat and can move to be flush with the floating seat in height to support the end of the overhanging part of the sheet metal stamping part at the discharging end; a linkage mechanism, which is connected between the floating seat and the supporting member. During the process of the floating seat descending to not protrude above the upper end surface of the lower die assembly, the linkage mechanism drives the supporting member away from the sheet metal stamping part at the discharging end so that the sheet metal stamping part at the discharging end falls naturally.

[0006] The active supporting mechanism for stamping sheets according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] When the upper die assembly and the lower die assembly of the stamping die are not closed, the floating seat protrudes above the upper end surface of the lower die assembly under the action of the first elastic member to support the strip or the sheet metal stamping part. At this time, the support member is flush with the floating seat in height and supports the end of the overhanging part of the sheet metal stamping part at the discharging end to prevent the sheet metal stamping part from bending; when the upper die assembly and the lower die assembly are closed, when the floating seat descends, it can drive the support member away from the sheet metal stamping part at the discharging end through the linkage mechanism so that the sheet metal stamping part falls naturally, fundamentally solving the influence of the strip sagging and shaking on the product precision and production.

[0008] In some embodiments of the present utility model, the supporting member is a swing arm rotatably connected to the floating seat. The swing arm has a free end extending from the side of the floating seat. The swing arm is connected with a second elastic member that drives its free end to swing upward. The linkage mechanism can drive the free end of the swing arm to swing towards the direction close to the stamping die.

[0009] In some embodiments of the present utility model, the linkage mechanism includes a driving block that can move up and down relative to the floating seat. During the process of the floating seat descending to not protrude above the upper end surface of the lower die assembly, the driving block rises relative to the floating seat to directly or indirectly toggle the swing arm to swing downward.

[0010] In some embodiments of the present utility model, a rotating block is rotatably arranged above the rotation connection between the swing arm and the floating seat. One end of the rotating block abuts against the upper side of the swing arm. The other end of the rotating block is provided with a driving surface inclined towards the driving block. When the driving block rises relative to the floating seat, it abuts against the driving surface and drives the rotating block to drive the swing arm to swing downward.

[0011] In some embodiments of the present utility model, the driving block is vertically slidably disposed on the floating seat, and a third elastic member for driving the driving block to slide downward is provided between the upper end of the driving block and the floating seat. One end of the swing arm is rotatably connected to the floating seat. The side wall of the driving block is provided with an avoidance groove extending in the vertical direction and corresponding to one end of the swing arm. The upper end of the driving block has a corner portion opposite to the driving surface, and the corner portion abuts against the driving surface to drive the driving surface to deflect to a vertically arranged state, so that the swing arm is kept swinging downward to a preset position.

[0012] In some embodiments of the present utility model, the floating seat includes a first half shell and a second half shell that can be assembled into an integral body. A cavity is defined between the first half shell and the second half shell. The cavity has a side opening and a lower opening. The driving block, the rotating block and the swing arm are all accommodated in the cavity. The free end of the swing arm extends out from the side opening, and the lower end of the driving block extends out from the lower opening.

[0013] In some embodiments of the present utility model, the rotating block rotates relative to the floating seat to have a first angular position and a second angular position. A limiting mechanism for limiting the rotating block to the first angular position or the second angular position is provided between the rotating block and the floating seat. When the rotating block is in the first angular position, the free end of the swing arm swings to be flush with the upper surface of the floating seat. When the rotating block is in the second angular position, the rotating block drives the swing arm to keep swinging downward to a preset position.

[0014] In some embodiments of the present utility model, the limiting mechanism includes a first limiting surface and a second limiting surface that are intersectedly provided on the floating seat. When the upper side wall of the rotating block rotates to abut against the first limiting surface, the rotating block is stabilized at the first angular position. When the upper side wall of the rotating block rotates to abut against the second limiting surface, the rotating block is stabilized at the second angular position.

[0015] In some embodiments of the present utility model, the free end of the swing arm is provided with a first flat portion. The swing arm can swing upward until the first flat portion is coplanar with the upper surface of the floating seat, or the swing arm can swing downward until the first flat portion inclines downward in a direction away from the lower die assembly.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0018] Figure 1 It is a schematic structural diagram of a traditional stamping die when the sheet metal stamping part at the discharging end is sagging;

[0019] Figure 2 It is a schematic structural diagram of the sheet metal stamping part of the present utility model located at the discharging end of the stamping die;

[0020] Figure 3 It is a schematic structural diagram of the floating seat, the first blanking assembly and the second blanking assembly acting on Figure 2 the strip of the embodiment;

[0021] Figure 4 It is a schematic diagram of the state of the movable supporting mechanism of the stamping sheet of the present utility model when the stamping die is not closed;

[0022] Figure 5 It is Figure 4 a schematic diagram of the state of the movable supporting mechanism of [] when the linkage mechanism just starts to work;

[0023] Figure 6 It is Figure 4 a schematic diagram of the state of the movable supporting mechanism of [] when the stamping die is closed;

[0024] Figure 7 It is an exploded schematic diagram of a part of the structure of an embodiment of the movable supporting mechanism of the stamping sheet of the present utility model.

[0025] Reference numerals:

[0026] Lower die assembly 10; upper die assembly 20; ejector rod 21; strip 30; sheet metal stamping part 31; side connecting plate 32; first blanking assembly 40; second blanking assembly 50; floating seat 100; first half shell 110; second half shell 120; first elastic member 200; swing arm 300; first flat portion 310; linkage mechanism 400; driving block 410; avoidance groove 411; rotating block 420; driving surface 421; third elastic member 430; second elastic member 500; first limiting surface 610; second limiting surface 620. Detailed Description of the Embodiment

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0028] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] See Figures 4 to 7 , a movable supporting mechanism for a stamping sheet of the present utility model includes: a floating seat 100, which is lifted and lowered in the lower die assembly 10 of the stamping die. The floating seat 100 is located on the side of the sheet metal stamping part 31 at the discharge end away from the overhanging part. The floating seat 100 is connected with a first elastic member 200 that drives it to rise above the upper end surface of the lower die assembly 10. The floating seat 100 is used to support the strip 30 or at least one sheet metal stamping part 31 on the strip 30; a supporting member, which is movably arranged on the floating seat 100. A part of the supporting member extends from the side of the floating seat 100 and can move to be flush with the floating seat 100 in height to support the end of the overhanging part of the sheet metal stamping part 31 at the discharge end; a linkage mechanism 400, which is connected between the floating seat 100 and the supporting member. During the process of the floating seat 100 descending to not protrude above the upper end surface of the lower die assembly 10, the linkage mechanism 400 drives the supporting member away from the sheet metal stamping part 31 at the discharge end so that the sheet metal stamping part 31 at the discharge end falls naturally.

[0032] In contrast, the traditional floating block always contacts the lower end surface of the sheet metal stamping part 31 during the working process of the stamping die. Moreover, in order to prevent the sheet metal stamping part 31 from falling on the side close to the stamping die, the support position can only be set on the side of the sheet metal stamping part 31 that is biased towards the stamping die, so that the center of gravity of the sheet metal stamping part 31 is on the side of the floating block away from the stamping die, thereby ensuring that the sheet metal stamping part 31 can smoothly separate from the strip 30 and be moved out of the stamping die. However, this also brings the problem that the sagging of the sheet metal stamping part 31 cannot be fundamentally solved.

[0033] In the technical solution of the present utility model, when the upper die assembly 20 and the lower die assembly 10 of the stamping die are not closed, the floating seat 100 protrudes from the upper end surface of the lower die assembly 10 under the action of the first elastic member 200 to support the strip 30 or the sheet metal stamping part 31. At this time, the support member is flush with the floating seat 100 and supports the end of the overhanging part of the sheet metal stamping part 31 at the discharge end to prevent the sheet metal stamping part 31 from bending; when the upper die assembly 20 and the lower die assembly 10 are closed, the floating seat 100 can drive the support member away from the sheet metal stamping part 31 at the discharge end when descending, so that the sheet metal stamping part 31 can fall naturally, fundamentally solving the influence of the sagging and shaking of the strip 30 on the product precision and production. It should be noted that during the process of the lower die assembly 10 approaching the lower die assembly 10 downward to gradually close the die, the upper die assembly 20 first contacts the floating seat 100 to push the floating seat 100 downward. The first elastic member 200 is compressed. When the floating seat 100 moves downward, it triggers the action of the linkage mechanism 400. The linkage mechanism 400 drives the support member to descend or shift relative to the floating seat 100. At this time, the sheet metal stamping part 31 at the discharge end is completely separated from the strip 30, and there is no supporting component below the sheet metal stamping part 31. The sheet metal stamping part 31 can fall naturally under the action of gravity, fundamentally solving the influence of the sagging and shaking of the strip 30 on the product precision and production.

[0034] It should be explained that according to actual production needs, the floating seat 100 can be used to support the strip 30, or can be used to support one or two sheet metal stamping parts 31 at the discharge end close to the stamping die. Such as Figure 2 and Figure 3As shown, when two adjacent sheet metal stamping parts 31 on the strip 30 are connected end to end, the tail end of the sheet metal stamping part 31 at the discharging end is also connected to another sheet metal stamping part 31 on the strip 30. At this time, the tail end of the sheet metal stamping part 31 at the discharging end does not need to be supported, and only the supporting member needs to support the tail end of the sheet metal stamping part 31 at the discharging end (i.e., the end of the overhanging part). Among them, the adjacent sheet metal stamping parts 31 are connected by two side connecting plates 32 respectively located on both sides of the strip 30. When the sheet metal stamping part 31 at the discharging end completely separates from the strip 30, the head end of the sheet metal stamping part 31 close to the discharging end cannot be supported. Therefore, the floating seat 100 needs to support the sheet metal stamping part 31 at the discharging end that has not moved to the stamping die. So, the floating seat 100 supports the head end of the sheet metal stamping part 31 close to the discharging end. And when the tail end of the sheet metal stamping part 31 at the discharging end needs auxiliary support, the floating seat 100 can also support the two sheet metal stamping parts 31 at the discharging end close to the stamping die at the same time.

[0035] See Figures 4 to 7 , in some embodiments of the present invention, the supporting member is a swing arm 300 rotatably connected to the floating seat 100. The swing arm 300 has a free end extending out of the side of the floating seat 100. The swing arm 300 is connected with a second elastic member 500 that drives its free end to swing upward. The linkage mechanism 400 can drive the free end of the swing arm 300 to swing towards the direction close to the stamping die. It should be noted that see Figure 4 , when the upper die assembly 20 and the lower die assembly 10 of the stamping die are not closed, the second elastic member 500 can drive the free end of the swing arm 300 extending out of the floating seat 100 to swing upward to support the end of the overhanging part of the sheet metal stamping part 31 at the discharging end, so that the sheet metal stamping part 31 at the discharging end can be at the same height as other sheet metal stamping parts 31 on the strip 30, avoiding problems such as unqualified stamping dimension accuracy and blocked strip 30 transportation. Moreover, the supporting member being the swing arm 300 is applicable to the case where the length dimension of the sheet metal stamping part 31 is relatively long, with a simple structure, low cost, and reliable operation.

[0036] See Figure 5 and Figure 6In some embodiments of the utility model, the linkage mechanism 400 includes a driving block 410 that can be raised and lowered relative to the floating seat 100. When the floating seat 100 descends to a point where it no longer protrudes from the upper end surface of the lower mold assembly 10, the driving block 410 rises relative to the floating seat 100 to directly or indirectly drive the swing arm 300 to swing downward. It should be noted that when the upper mold assembly 20 and the lower mold assembly 10 are molded together, the floating seat 100 is pressed down by the upper mold assembly 20 and descends, and the driving block 410 rises relative to the floating seat 100. The driving block 410 can directly or indirectly drive the swing arm 300 to swing downward, so that when punching the sheet metal stamping 31 at the discharge end, the swing arm 300 is completely separated from the sheet metal stamping 31 at the discharge end. In the process of the upper mold assembly 20 moving upward away from the lower mold assembly 10, the sheet metal stamping 31 can fall quickly, and the swing arm 300 is also reset under the action of the second elastic member 500. For example, when the middle part of the swing arm 300 is rotatably connected to the floating seat 100, one end of the swing arm 300 located on the floating seat 100 can be directly contacted by the upward sliding driving block 410, and the end of the swing arm 300 extending from the floating seat 100 can swing downward.

[0037] See also Figure 7 In some embodiments of the utility model, a rotating block 420 is rotatably arranged above the rotating connection between the swing arm 300 and the floating seat 100, one end of the rotating block 420 abuts against the upper side of the swing arm 300, and the other end of the rotating block 420 is provided with a driving surface 421 inclined toward the driving block 410. When the driving block 410 rises relative to the floating seat 100, it abuts against the driving surface 421 to drive the rotating block 420 to drive the swing arm 300 to swing downward. It should be noted that when the upper mold assembly 20 and the lower mold assembly 10 are molded together, the floating seat 100 is pressed down by the upper mold assembly 20 and descends, and the driving block 410 rises relative to the floating seat 100. When the driving block 410 moves upward, it abuts against the inclined driving surface 421. The driving block 410 drives the rotating block 420 to rotate through the driving surface 421. The end of the rotating block 420 away from the driving surface 421 swings downward to drive the free end of the swing arm 300 to swing downward, so that the free end of the swing arm 300 leaves the lower end surface of the sheet metal stamping 31. The above structure realizes the action mode of the driving block 410 indirectly driving the swing arm 300 to swing downward. The setting of the driving surface 421 is conducive to improving the smoothness of the rotation of the rotating block 420 driven by the driving block 410, which helps to reduce the jamming phenomenon.

[0038] See also Figure 5 , Figure 6 and Figure 7, in some embodiments of the present utility model, the driving block 410 is vertically slidably disposed on the floating seat 100. A third elastic member 430 for driving the driving block 410 to slide downward is provided between the upper end of the driving block 410 and the floating seat 100. One end of the swing arm 300 is rotatably connected to the floating seat 100. The side wall of the driving block 410 is provided with an avoidance groove 411 extending in the vertical direction and corresponding to one end of the swing arm 300. The upper end of the driving block 410 has a corner portion disposed opposite to the driving surface 421. The corner portion abuts against the driving surface 421 to drive the driving surface 421 to deflect to a vertically arranged state, so that the swing arm 300 is kept swinging downward to a preset position. It can be understood that after the upper die assembly 20 pushes the floating seat 100 downward to compress the first elastic member 200 by a certain distance, the lower end of the driving block 410 contacts the lower die assembly 10 and then remains stationary relative to the lower die assembly 10. The floating seat 100 continues to descend relative to the driving block 410, and the driving block 410 rises relative to the floating seat 100 to compress the third elastic member 430. During this process, the corner portion contacts the inclined driving surface 421 to drive the rotating block 420 to rotate clockwise, and then drives the swing arm 300 to swing downward. When the rotating block 420 rotates until the driving surface 421 is vertically arranged, the downward swing angle of the swing arm 300 remains unchanged, and the continued upward sliding of the driving block 410 will not cause the angle of the swing arm 300 to change; subsequently, when the upper die assembly 20 is separated from the lower die assembly 10, the floating seat 100 is reset upward under the action of the first elastic member 200, and the driving block 410 is reset under the action of the third elastic member 430. The corner portion can leave the driving surface 421, and the rotating block 420 and the swing arm 300 rotate and reset together under the action of the second elastic member 500. Among them, one end of the swing arm 300 is rotatably connected to the floating seat 100, and the side wall of the driving block 410 is provided with an avoidance groove 411 extending in the vertical direction and corresponding to one end of the swing arm 300, which is beneficial to improving the structural compactness of the movable supporting mechanism, realizing miniaturization, and thus reducing the influence on the layout design of the stamping die.

[0039] See Figure 7, in some embodiments of the present utility model, in order to reduce the difficulty of manufacturing and assembling the movable supporting mechanism for the stamping sheet, the floating seat 100 includes a first half-shell 110 and a second half-shell 120 that can be assembled into a whole. A cavity is defined between the first half-shell 110 and the second half-shell 120. The cavity has a side opening and a lower opening. The driving block 410, the rotating block 420, and the swing arm 300 are all accommodated in the cavity. The free end of the swing arm 300 extends out from the side opening, and the lower end of the driving block 410 extends out from the lower opening. Among them, a limiting structure is provided between the driving block 410 and the first half-shell 110 or between the driving block 410 and the second half-shell 120 to prevent the driving block 410 from detaching from the floating seat 100 through the lower opening. At least a part of the driving block 410, the rotating block 420, and the swing arm 300 are all accommodated in the cavity, which is beneficial to avoiding the influence of the external environment on the normal operation of the linkage mechanism 400 and can also improve the structural compactness.

[0040] See Figure 5 and Figure 6 , in some embodiments of the present utility model, the rotating block 420 rotates relative to the floating seat 100 to have a first angular position and a second angular position. A limiting mechanism is provided between the rotating block 420 and the floating seat 100 to limit the rotating block 420 to the first angular position or the second angular position. When the rotating block 420 is in the first angular position, the free end of the swing arm 300 swings to be flush with the height of the floating seat 100. When the rotating block 420 is in the second angular position, the rotating block 420 drives the swing arm 300 to keep swinging downward to a preset position. It can be understood that when the rotating block 420 is in the first angular position, it corresponds to the free end of the swing arm 300 supporting at the end of the overhanging part of the sheet metal stamping part 31. When the rotating block 420 is in the second angular position, it corresponds to the separation of the swing arm 300 from the sheet metal stamping part 31. Using the limiting mechanism to limit the position of the rotating block 420 is beneficial to ensuring that the swing arm 300 stably supports the sheet metal stamping part 31 or ensuring complete separation from the sheet metal stamping part 31.

[0041] See Figure 7, in some embodiments of the present utility model, the limiting mechanism includes a first limiting surface 610 and a second limiting surface 620 which are intersectingly arranged on the floating seat 100. When the upper side wall of the rotating block 420 rotates to abut against the first limiting surface 610, the rotating block 420 is stabilized at the first angular position. When the upper side wall of the rotating block 420 rotates to abut against the second limiting surface 620, the rotating block 420 is stabilized at the second angular position. Specifically, both the first limiting surface 610 and the second limiting surface 620 are formed inside the first half shell 110 to form a V shape. When the upper side wall of the rotating block 420 rotates to abut against the first limiting surface 610, the swing arm 300 is acted upon by the first elastic member 200 and transmits the force to the rotating block 420, thereby driving the upper side wall of the rotating block 420 to remain in contact with the first limiting surface 610. After the driving block 410 remains in contact with the driving surface 421 and moves upward by a certain distance, the upper side wall of the rotating block 420 rotates to remain in contact with the second limiting surface 620, and the free end of the swing arm 300 swings downward by a certain angle, avoiding the situation of the swing arm 300 jumping.

[0042] See Figure 6 and Figure 7 , in some embodiments of the present utility model, in order to better support the sheet metal stamping part 31, the free end of the swing arm 300 is provided with a first flat portion 310. The swing arm 300 can swing upward until the first flat portion 310 is coplanar with the upper surface of the floating seat 100, or the swing arm 300 can swing downward until the first flat portion 310 inclines downward in a direction away from the lower die assembly 10.

[0043] See Figure 2 and Figure 3, the method of forming sheet metal stamping parts by using the movable supporting mechanism of the stamping sheet metal of the present utility model is as follows: The stamping die is provided with a plurality of pre-stamping stations and a terminal stamping station, and the method includes the following steps: After the strip 30 passes through all the pre-stamping stations, a plurality of sequentially arranged sheet metal stamping parts 31 are formed. The head end of one sheet metal stamping part 31 and the tail end of another sheet metal stamping part 31 are connected by two side connecting plates 32 respectively located on both sides of the strip 30. A first blanking component 40 corresponding to the two side connecting plates 32 is provided at the terminal stamping station. A part of the sheet metal stamping part 31 at the front end of the terminal stamping station extends outside the stamping die. Before the stamping die is closed, the supporting member supports the end of the overhanging part of the sheet metal stamping part 31 at the discharging end. When the stamping die is closed, the first blanking component 40 cuts off the side connecting plates 32. At the same time, the linkage mechanism 400 drives the supporting member to separate from the corresponding sheet metal stamping part 31, so that the sheet metal stamping part 31 at the discharging end naturally falls. This stamping forming method uses the supporting member to support the end of the overhanging part of the sheet metal stamping part 31 at the discharging end before the stamping die is closed to prevent the sheet metal stamping part 31 from bending. When the stamping die is closed, the linkage mechanism 400 drives the supporting member away from the sheet metal stamping part 31 at the discharging end so that the sheet metal stamping part 31 naturally falls, fundamentally solving the influence of the sagging and shaking of the strip 30 on the product precision and production.

[0044] In some embodiments, in order to deal with the situation that the length of the side connecting plate 32 of the sheet metal stamping part 31 is relatively long, a second blanking component 50 is further provided at the pre-stamping station at the end. The second blanking component 50 is used to cut off the side connecting plate 32.

[0045] Specifically, the joint of the two sheet metal stamping parts 31 is located at the terminal stamping station. The tail end of the sheet metal stamping part 31 at the discharging end is also connected to another sheet metal stamping part 31 on the strip 30. At this time, the tail end of the sheet metal stamping part 31 at the discharging end does not need to be supported, and only the supporting member needs to support the tail end of the sheet metal stamping part 31 at the discharging end. The first blanking component 40 cuts off the two side connecting plates 32 to completely separate the sheet metal stamping part 31 at the discharging end from the strip 30. At this time, the floating seat 100 supports the sheet metal stamping part 31 at the end of the strip 30, and the sheet metal stamping part 31 at the end is moved to the terminal stamping station through the conveying mechanism, thus entering the next cycle. Among them, as shown in Figure 2 and Figure 3 shown, there is a hollow area between two adjacent sheet metal stamping parts 31, and a part of the floating seat 100 is located in this hollow area. As shown in Figure 4, the upper die assembly 20 has a ejector rod 21 facing the hollow area and capable of pushing the floating seat 100 downward. When the stamping die is closed, the ejector rod 21 pushes the floating seat 100 downward, so as to drive the support member to separate from the corresponding sheet metal stamping part 31 through the linkage mechanism 400.

[0046] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A movable supporting mechanism for a stamped plate, characterized in that: include: A floating seat (100) is lifted and lowered on a lower die assembly (10) of a stamping die, the floating seat (100) being located on a side of a sheet metal stamping part (31) at a discharge end away from an overhanging portion, the floating seat (100) being connected to a first elastic member (200) for driving the floating seat (100) to rise to a position protruding from an upper end surface of the lower die assembly (10), the floating seat (100) being used to support a material strip (30) or at least one sheet metal stamping part (31) on the material strip (30); A support member is movably disposed on the floating seat (100), a portion of which extends from a side of the floating seat (100) and can be moved to be flush with the floating seat (100) to support the end of the overhanging portion of the sheet metal stamping part (31) at the discharge end; The linkage mechanism (400) is connected between the floating seat (100) and the support member. When the floating seat (100) descends to a point where it does not protrude from the upper end surface of the lower die assembly (10), the linkage mechanism (400) drives the support member away from the sheet metal stamping part (31) at the discharge end so that the sheet metal stamping part (31) at the discharge end falls naturally.

2. The movable supporting mechanism for a stamped plate according to claim 1, characterized in that: The supporting member is a swing arm (300) rotatably connected to the floating seat (100), the swing arm (300) having a free end extending from the side of the floating seat (100), the swing arm (300) being connected to a second elastic member (500) for driving its free end to swing upward, and the linkage mechanism (400) being capable of driving the free end of the swing arm (300) to swing in a direction close to the stamping die.

3. The movable supporting mechanism for a stamped plate according to claim 2, characterized in that: The linkage mechanism (400) includes a driving block (410) that can be lifted and lowered relative to the floating seat (100). When the floating seat (100) descends to a point where it no longer protrudes from the upper end surface of the lower mold assembly (10), the driving block (410) rises relative to the floating seat (100) to directly or indirectly drive the swing arm (300) to swing downward.

4. The movable supporting mechanism for a stamped plate according to claim 3, characterized in that: A rotating block (420) is rotatably arranged above the rotating connection between the swing arm (300) and the floating seat (100), one end of the rotating block (420) abuts against the upper side of the swing arm (300), and the other end of the rotating block (420) is provided with a driving surface (421) inclined toward the driving block (410), and when the driving block (410) rises relative to the floating seat (100), it abuts against the driving surface (421) to drive the rotating block (420) to drive the swing arm (300) to swing downward.

5. The movable supporting mechanism for a stamped plate according to claim 4, characterized in that: The driving block (410) is vertically slidably arranged on the floating seat (100), and a third elastic member (430) is arranged between the upper end of the driving block (410) and the floating seat (100) to drive the driving block (410) to slide downward. One end of the swing arm (300) is rotatably connected to the floating seat (100), and a side wall of the driving block (410) is provided with an avoidance groove (411) extending in the vertical direction and corresponding to one end of the swing arm (300). The upper end of the driving block (410) has a corner portion arranged opposite to the driving surface (421), and the corner portion abuts against the driving surface (421) to drive the driving surface (421) to deflect to a vertical arrangement, so that the swing arm (300) keeps swinging downward to a preset position.

6. The movable supporting mechanism for a stamped plate according to claim 5, characterized in that: The floating seat (100) includes a first half shell (110) and a second half shell (120) which can be assembled into a whole. A cavity is defined between the first half shell (110) and the second half shell (120). The cavity has a side opening and a lower opening. The driving block (410), the rotating block (420) and the swing arm (300) are all accommodated in the cavity. The free end of the swing arm (300) extends out from the side opening, and the lower end of the driving block (410) extends out from the lower opening.

7. The movable supporting mechanism for a stamped plate according to claim 4, characterized in that: The rotating block (420) rotates relative to the floating seat (100) to have a first angular position and a second angular position. A limiting mechanism is provided between the rotating block (420) and the floating seat (100) to limit the rotating block (420) to the first angular position or the second angular position. When the rotating block (420) is at the first angular position, the free end of the swing arm (300) swings to be flush with the height of the floating seat (100). When the rotating block (420) is at the second angular position, the rotating block (420) drives the swing arm (300) to keep swinging downward to a preset position.

8. The movable supporting mechanism for a stamped plate according to claim 7, characterized in that: The limiting mechanism comprises a first limiting surface (610) and a second limiting surface (620) which are intersectingly arranged on the floating seat (100); when the upper side wall of the rotating block (420) rotates to abut against the first limiting surface (610), the rotating block (420) is stabilized at the first angular position; when the upper side wall of the rotating block (420) rotates to abut against the second limiting surface (620), the rotating block (420) is stabilized at the second angular position.

9. The movable supporting mechanism for a stamped plate according to claim 2, characterized in that: The free end of the swing arm (300) is provided with a first plane portion (310), and the swing arm (300) can be swung upward until the first plane portion (310) is coplanar with the upper surface of the floating seat (100), or the swing arm (300) can be swung downward until the first plane portion (310) is tilted downward in a direction away from the lower mold assembly (10).

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