A continuous stamping forming device and forming method based on clamping and limiting

Abstract

The present invention relates to the technical field related to metal stamping, and specifically to a continuous stamping forming device and a forming method based on clamping and limiting. The continuous stamping forming device based on clamping and limiting comprises a fixed base, a slewing bearing arranged on the fixed base, and a plurality of stamping processing structures equidistantly arranged on the slewing bearing along the circumference, the stamping processing structure comprises two arms fixed on the slewing bearing and a stamping die set arranged on the arms; the stamping die set comprises a static die fixed to the arms by a plurality of columns and a dynamic die movably arranged on the arms and adapted to the static die, the dynamic die is fixedly connected to the movable ends of two hydraulic cylinders installed on the arms, a plurality of clamping and limiting mechanisms are arranged on the dynamic die, and a mechanical interlocking method is adopted. Compared with the control method through sensor components and circuit programs, the reliability is higher, and the occurrence of failures and losses in production are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field related to metal stamping, and in particular to a continuous stamping forming device and a forming method based on clamping and limiting. Background Art

[0002] Metal stamping is a metal cold processing method widely used in the manufacturing industry, also known as cold stamping or sheet metal stamping. Its basic principle is to use the power of the stamping equipment to place the metal sheet between the dies, and to apply pressure to make the metal plastically deformed, so as to obtain parts of the desired shape and size.

[0003] In actual processing, after mold separation, the molded parts remain on the mold. At this time, since the molded parts are attached to the mold, it brings certain difficulties to the unloading operation, and requires high precision and stability of the transfer robot. Although some equipment is equipped with a lifting structure to first lift the molded parts to reduce the relevant requirements for the transfer robot, the movement of the lifting structure and the transfer robot is usually controlled by sensor components. However, sensor components have high requirements for the production environment and are more prone to failure. In addition, there are some devices that control the progress of each step through a single-chip microcomputer program. However, all the steps are integrated into a control system. When a module fails, it is easy to cause irreparable losses. Summary of the invention

[0004] The object of the present invention is to provide a continuous stamping forming device and a forming method based on clamping and limiting, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A continuous stamping forming device based on clamping and limiting, comprising a fixed base, a slewing bearing arranged on the fixed base, and a plurality of stamping processing structures equidistantly arranged on the slewing bearing along the circumference, wherein the stamping processing structure comprises two arms fixed on the slewing bearing and a stamping die set arranged on the arms;

[0007] The stamping die set includes a static die fixed on the support arm through multiple columns and a dynamic die movably arranged on the support arm and adapted to the static die, the dynamic die is fixedly connected to the movable ends of two hydraulic cylinders installed on the support arm, and multiple groups of clamping and limiting mechanisms are arranged on the dynamic die;

[0008] The continuous stamping forming equipment based on compression and limiting also includes:

[0009] A lifting mechanism is provided on the static mold, and can lift the molded part on the static mold after mold separation, so as to form a gap between the molded part and the static mold;

[0010] A telescopic arm group is provided on each side of the static mold, and the two groups of telescopic arm groups are respectively connected to a cross arm through a group of position adjustment mechanisms. The telescopic arm group is triggered when the molded part on the static mold is in a jacking state, which can prompt the two cross arms to move toward the gap. At the same time, the position adjustment mechanism can prompt the two cross arms to move together in the first part of the movement of the cross arms, and drive the two cross arms to lift in the latter part of the movement.

[0011] As a further solution of the present invention: the clamping and limiting mechanism includes two cross bars fixed on the movable mold, two shaft sleeves slidably arranged on the two cross bars, and two first cylindrical springs respectively sleeved on the outer circumferences of the two cross bars, one end of the first cylindrical spring is connected to the second boss arranged on the shaft sleeve, and the other end is connected to the first boss arranged at the end of the cross bar;

[0012] A connecting arm is fixedly connected between the two shaft sleeves, and two limiting members are fixedly provided at one end of the connecting arm away from the shaft sleeve, and the limiting members are arranged in a triangular shape.

[0013] As a further solution of the present invention: the ejection mechanism comprises two support columns slidably arranged on the static mold, two support blocks respectively fixed to the top ends of the two support columns, and an assembly part fixedly connected to the bottom ends of the two support columns, and the outer circumference of the support column is also sleeved with a fifth cylindrical spring, and the two ends of the fifth cylindrical spring are respectively connected to the bottom of the static mold and the assembly part;

[0014] Wherein, the assembly part is also provided with a roller, the fixed base is provided with an arc plate matched with the roller, and one end of the arc plate is provided with an inclined surface.

[0015] As a further solution of the present invention: the telescopic arm group includes a guide arm fixedly connected to the column and a telescopic arm slidably engaged with the guide arm, the telescopic arm is connected to a threaded drive assembly arranged at the bottom of the static mold, and a cross frame is fixed between the two telescopic arms, and the two groups of position adjustment mechanisms are respectively arranged at both ends of the cross frame.

[0016] As a further solution of the present invention: the threaded drive assembly includes a screw rod rotatably mounted at the bottom of the static mold and a threaded sleeve sleeved on the screw rod and threadedly connected to the screw rod, the threaded sleeve is fixedly connected to the telescopic arm through a fixed arm, and a strip-shaped through groove is provided on the side of the guide arm for the fixed arm to move;

[0017] Among them, a third gear is fixed to one end of the screw rod facing the fixed base, and the third gear is meshed with the second gear rotatably installed at the bottom of the static mold. A first gear is also fixed on the rotating shaft of the second gear, and the first gear cooperates with the first arc-shaped tooth plate and the second arc-shaped tooth plate fixed on the fixed base. When the slewing bearing rotates, the first gear cooperates with the first arc-shaped tooth plate and the second arc-shaped tooth plate in sequence, and can rotate forward and reverse.

[0018] As a further solution of the present invention: the position adjustment mechanism includes a spacing adjustment component arranged on the cross frame and a height adjustment component connecting the spacing adjustment component and the cross arm, the spacing adjustment component can cause the cross arm to move along the length direction of the cross frame, and the height adjustment component can cause the cross arm to rise or fall.

[0019] As a further solution of the present invention: the spacing adjustment component includes a slider slidably embedded in the horizontal frame, the slider is connected to two groups of elastic parts respectively arranged on both sides of the horizontal frame, a pulley is installed on the slider through a connecting frame, the pulley cooperates with a limit plate fixed on the column, and the limit plate is provided with a first rolling surface and a second rolling surface connected to each other, the first rolling surface is inclined, and the second rolling surface is straight.

[0020] As a further solution of the present invention: a guide rail is also fixed to the side of the slider, a movable block is slidably engaged in the guide rail, the height adjustment component includes a cylinder fixed to the movable block and a vertical rod slidably engaged with the cylinder, one end of the vertical rod is fixedly connected to the cross arm through a connecting plate, and the other end is connected to cooperate with a fixed plate group arranged on the column;

[0021] Among them, the vertical rod is fixed to a truncated table slidably arranged inside the cylinder, and the outer periphery of the vertical rod is also sleeved with a third cylindrical spring and a fourth cylindrical spring respectively located on both sides of the truncated table, and the head ends of the third cylindrical spring and the fourth cylindrical spring are connected to the truncated table, and the tail ends abut against the inner wall of the cylinder.

[0022] As a further solution of the present invention: the fixed plate group includes a first rectangular plate fixed to the column and a second rectangular plate fixed to the first rectangular plate by a plurality of fasteners, the first rectangular plate is provided with a rectangular opening, and the second rectangular plate is located in the rectangular opening;

[0023] Among them, a rectangular frame groove adapted to the vertical rod is formed between the first rectangular plate and the second rectangular plate, and the end of the vertical rod away from the cross arm passes through the rectangular frame groove. A convex column is also fixedly provided on the outer wall of the cylinder, and an inclined through groove adapted to the convex column is provided on the first rectangular plate, and the convex column passes through the inclined through groove.

[0024] A stamping part forming method, using the stamping forming equipment, comprises the following steps:

[0025] Step 1: The movable mold descends and closes the mold, and then the mold is separated after the sheet is formed on the static mold;

[0026] Step 2: The slewing bearing rotates, and the ejection mechanism is triggered to lift the molded part on the static mold, so that a gap is formed between the molded part and the static mold;

[0027] Step 3: The telescopic arm group is triggered to cause the two cross arms to move toward the gap between the molded part and the static mold. The position adjustment mechanism first causes the two cross arms to move closer together, and then causes the two cross arms to rise to lift the molded part.

[0028] Step 4: The telescopic arm assembly is reset, causing the two cross arms to drive the molded part to be pulled out from the gap between the molded part and the static mold. The position adjustment mechanism causes the two cross arms to open, causing the molded part to fall onto the conveying equipment, and then causes the two cross arms to return to their initial height.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] During processing, the mechanical interlocking between the components is used to realize the lifting and transfer of the molded parts. During the transfer process, the position adjustment mechanism can drive the two cross arms to adjust their positions, that is, to open and close and lift and lower them, so that the transfer process of the molded parts can proceed in an orderly manner. Compared with the control method through sensor components and circuit programs, the mechanical interlocking method has higher reliability and effectively reduces the occurrence of failures and losses in production.

[0031] Secondly, when the mold is closed, the inclined surface on the limiter will exert pressure on the periphery of the sheet. This pressure has a downward component, which can ensure that the metal sheet is placed stably on the static mold during the stamping process, avoid stamping failure due to displacement of the metal sheet, and improve stamping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a structural schematic diagram of an embodiment of a continuous stamping and forming device based on clamping and limiting.

[0033] Figure 2 It is a structural schematic diagram of another angle of an embodiment of a continuous stamping and forming equipment based on clamping and limiting.

[0034] Figure 3 The figure is a schematic diagram of the positional relationship between the first arc-shaped tooth plate and the second arc-shaped tooth plate in an embodiment of a continuous stamping forming device based on clamping and limiting.

[0035] Figure 4 It is a structural schematic diagram of a stamping processing structure in an embodiment of a continuous stamping forming device based on clamping and limiting.

[0036] Figure 5 It is a structural schematic diagram of another angle of the stamping processing structure in an embodiment of a continuous stamping forming equipment based on clamping and limiting.

[0037] Figure 6 It is a structural schematic diagram of the ejection mechanism in an embodiment of a continuous stamping and forming equipment based on clamping and limiting.

[0038] Figure 7 It is a structural explosion diagram of the clamping and limiting mechanism in an embodiment of a continuous stamping and forming equipment based on clamping and limiting.

[0039] Figure 8 It is a structural explosion diagram of the position adjustment mechanism in an embodiment of a continuous stamping forming device based on clamping and limiting.

[0040] Fig. 9 for Figure 8 Schematic diagram of the structure from another angle.

[0041] Fig.10 for Figure 4 A magnified view of the structure at center.

[0042] Fig.11 for Fig. 9 A magnified view of the structure at point B.

[0043] In the figure: 1, slewing bearing; 2, support arm; 3, column; 4, dynamic mold; 5, static mold; 6, hydraulic cylinder; 7, cross bar; 701, first boss; 8, bushing; 801, second boss; 9, first cylindrical spring; 10, connecting arm; 11, limiter; 12, arc plate; 1201, inclined surface; 13, first arc tooth plate; 14, second arc tooth plate; 15, guide arm; 1501, strip through groove; 16, telescopic arm; 17, fixed arm; 18, first gear; 19, second gear; 20, third gear; 21, screw rod; 22, threaded sleeve; 23, cross frame; 2301, lug; 24, slider; 25, guide rod; 26, second cylindrical spring ; 27. Connecting frame; 28. Pulley; 29. ​​Limiting plate; 2901. First rolling surface; 2902. Second rolling surface; 30. Guide rail; 31. Movable block; 32. Cylinder; 3201. Boss; 3202. Cone; 33. Vertical pole; 34. Third cylindrical spring; 35. Fourth cylindrical spring; 36. Connecting plate; 37. Cross arm; 38. Fastener; 39. First rectangular plate; 3901. Inclined through slot; 40. Second rectangular plate; 41. First empty section; 42. Second empty section; 43. Third empty section; 44. Fourth empty section; 45. Support column; 46. Support block; 47. Assembly; 48. Fifth cylindrical spring; 49. Roller; 50. Fixed base. DETAILED DESCRIPTION

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

[0045] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0046] See also Figure 1-Figure 11 In an embodiment of the present invention, a continuous stamping forming device based on clamping and limiting comprises a fixed base 50, a slewing bearing 1 arranged on the fixed base 50, and a plurality of stamping processing structures equidistantly arranged on the slewing bearing 1 along the circumference, wherein the stamping processing structure comprises two arms 2 fixed on the slewing bearing 1 and a stamping die set arranged on the arms 2;

[0047] The stamping die set includes a static die 5 fixed on the support arm 2 through a plurality of columns 3 and a dynamic die 4 movably arranged on the support arm 2 and adapted to the static die 5, the dynamic die 4 is fixedly connected to the movable ends of two hydraulic cylinders 6 installed on the support arm 2, and the dynamic die 4 is provided with a plurality of groups of clamping and limiting mechanisms;

[0048] The continuous stamping forming equipment based on compression and limiting also includes:

[0049] A lifting mechanism is provided on the static mold 5, and can lift the molded part on the static mold 5 after mold separation, so as to form a gap between the molded part and the static mold 5;

[0050] A telescopic arm group is provided on each side of the static mold 5, and the two groups of telescopic arm groups are respectively connected to a cross arm 37 through a group of position adjustment mechanisms. The telescopic arm group is triggered when the molded part on the static mold 5 is in a jacking state, which can prompt the two cross arms 37 to move toward the gap. At the same time, the position adjustment mechanism can prompt the two cross arms 37 to move together in the first part of the movement of the cross arms 37, and drive the two cross arms 37 to lift in the latter part of the movement.

[0051] Furthermore, after the mold is separated and the molded part on the static mold 5 is transferred, the external manipulator will transport the new metal sheet to the static mold 5 to realize continuous stamping and forming processing;

[0052] Secondly, the slewing bearing 1 is an application of the prior art, and is used to realize continuous automatic production. The specific structure and principle thereof will not be described in detail in this application.

[0053] Specifically, the entire stamping process is as follows;

[0054] First, the hydraulic cylinder 6 drives the movable die 4 to descend and close the die, and performs stamping on the metal sheet on the static die 5, and the multiple groups of the clamping and limiting mechanisms clamp the side of the sheet to avoid the problem that the stamping cannot be completed smoothly due to the displacement of the sheet due to the force during the stamping process;

[0055] Subsequently, the hydraulic cylinder 6 drives the movable mold 4 to rise and separate the molds, the slewing bearing 1 operates, the ejection mechanism and the telescopic arm group are triggered in sequence, the ejection mechanism then ejects the molded part on the static mold 5, and the telescopic arm group drives the two cross arms 37 to move toward the gap between the molded part and the static mold 5. In the first stroke of the movement of the cross arms 37, the position adjustment mechanism first prompts the two cross arms 37 to perform a close movement, so that the distance between the two cross arms 37 is smaller than the width of the molded part. In the second stroke of the movement of the cross arms 37, the position adjustment mechanism again prompts the two cross arms 37 to perform a lifting action to lift the molded part.

[0056] Finally, the telescopic arm group is reset, and the two cross arms 37 can drive the molded part to move away from the slewing bearing 1 and be pulled out from between the movable mold 4 and the static mold 5. In the latter part of this movement, the position adjustment mechanism first causes the two cross arms 37 to reset away from each other, and the distance between the two cross arms 37 is greater than the width of the molded part, so that the molded part falls to the side of the slewing bearing 1, and the molded part falls to the conveying equipment arranged next to the fixed base 50, and is conveyed to the next processing production line, thereby improving the degree of automation of production. Subsequently, the position adjustment mechanism causes the two cross arms 37 to move down and reset, and restore the initial height (this height is lower than the bottom height of the molded part after being lifted by the lifting mechanism, and higher than the height of the static mold 5).

[0057] Please refer again Figure 7 The clamping and limiting mechanism includes two cross bars 7 fixed on the movable mold 4, two sleeves 8 slidably disposed on the two cross bars 7, and two first cylindrical springs 9 respectively sleeved on the outer peripheries of the two cross bars 7, one end of the first cylindrical spring 9 is connected to the second boss 801 disposed on the sleeve 8, and the other end is connected to the first boss 701 disposed at the end of the cross bar 7. A connecting arm 10 is fixedly connected between the two sleeves 8, and two limiting members 11 are fixedly disposed at one end of the connecting arm 10 away from the sleeve 8, and the limiting members 11 are arranged in a triangular shape.

[0058] During the mold closing process, in the latter part of the downward movement of the movable mold 4, the inclined surface on the limit member 11 will act on the side of the metal sheet. As the movable mold 4 continues to move downward, the limit member 11 will give way. Specifically, the limit member 11 drives the sleeve 8 to slide on the cross bar 7 toward the first boss 701 through the connecting arm 10, and the first cylindrical spring 9 is compressed. Therefore, the inclined surface on the limit member 11 will exert pressure on the periphery of the sheet. The pressure has a downward component, which can ensure that the metal sheet is stably placed on the static mold 5 during the stamping process, thereby avoiding stamping process failure due to displacement of the metal sheet.

[0059] Please refer again Figure 1 , Figure 3 as well as Figure 6 The ejection mechanism includes two support columns 45 slidably arranged on the static mold 5, two supporting blocks 46 respectively fixed to the top ends of the two support columns 45, and an assembly part 47 fixedly connected to the bottom ends of the two support columns 45. The outer periphery of the support column 45 is also sleeved with a fifth columnar spring 48, and the two ends of the fifth columnar spring 48 are respectively connected to the bottom of the static mold 5 and the assembly part 47. A roller 49 is also provided on the assembly part 47. An arc plate 12 cooperating with the roller 49 is provided on the fixed base 50, and an inclined surface 1201 is provided at one end of the arc plate 12.

[0060] Specifically, during the rotation of the slewing bearing 1, the roller 49 will contact the inclined surface 1201, so the roller 49 will give way and move up. Correspondingly, the assembly 47 drives the two supporting blocks 46 to rise through the two supporting columns 45, and the fifth column spring 48 is compressed, so that the supporting block 46 lifts the molded part on the static mold 5, and a gap is formed between the molded part and the static mold 5 to facilitate the subsequent entry of the two cross arms 37 to transfer the molded part. After the roller 49 is disengaged from the arc plate 12, the fifth column spring 48 rebounds to facilitate the downward movement and reset of the support column 45.

[0061] Please refer again Figure 6 and Figure 8 The telescopic arm group includes a guide arm 15 fixedly connected to the column 3 and a telescopic arm 16 slidably fitted with the guide arm 15. The telescopic arm 16 is connected to a threaded drive assembly arranged at the bottom of the static mold 5. A cross frame 23 is also fixed between the two telescopic arms 16. The two groups of position adjustment mechanisms are respectively arranged at both ends of the cross frame 23.

[0062] Please refer again Figure 2 , Figure 3 as well as Fig. 9The thread drive assembly includes a screw rod 21 rotatably mounted at the bottom of the static mold 5 and a threaded sleeve 22 sleeved on the screw rod 21 and threadedly connected to the screw rod 21. The threaded sleeve 22 is fixedly connected to the telescopic arm 16 through the fixed arm 17, and the side of the guide arm 15 is provided with a strip-shaped through groove 1501 for the movement of the fixed arm 17. A third gear 20 is fixed to the end of the screw rod 21 facing the fixed base 50. The third gear 20 is meshed with a second gear 19 rotatably mounted at the bottom of the static mold 5. A first gear 18 is also fixed to the rotating shaft of the second gear 19. The first gear 18 cooperates with a first arc-shaped toothed plate 13 and a second arc-shaped toothed plate 14 fixed on the fixed base 50. When the slewing bearing 1 rotates, the first gear 18 sequentially cooperates with the first arc-shaped toothed plate 13 and the second arc-shaped toothed plate 14, and can rotate in the forward and reverse directions.

[0063] Specifically, the centers of the first arc-shaped tooth plate 13 and the second arc-shaped tooth plate 14 coincide with each other, and the two are staggered, with the toothed parts facing each other.

[0064] When the slewing bearing 1 rotates, the roller 49 first passes through the inclined surface 1201 and rolls to the upper part of the arc plate 12, and the molded part on the static mold 5 is lifted up. Then, the first gear 18 first meshes with the teeth on the first arc toothed plate 13, and the first gear 18 rotates forward. Correspondingly, the second gear 19 drives the screw rod 21 to rotate in the opposite direction through the third gear 20, and the threaded sleeve 22 slides with the screw rod 21 and moves toward the third gear 20. The threaded sleeve 22 drives the telescopic arm 16 to slide toward the inside of the guide arm 15 through the fixed arm 17, so that the cross arm 37 enters the gap between the molded part and the static mold 5, and lifts the molded part from the supporting block 46.

[0065] Subsequently, the first gear 18 meshes with the teeth on the second arc-shaped toothed plate 14, and the first gear 18 rotates in the opposite direction. Accordingly, the second gear 19 drives the screw rod 21 to rotate forward through the third gear 20, and the threaded sleeve 22 is threadedly engaged with the screw rod 21 and moves away from the third gear 20. Finally, the telescopic arm 16 slides toward the outside of the guide arm 15 and resets, so that the cross arm 37 can drive the molded part to the top of the conveying equipment for release.

[0066] Please refer again Figure 6 , Fig. 9 , Fig.10 as well as Fig.11The position adjustment mechanism includes a spacing control component arranged on the cross frame 23 and a height control component connecting the spacing control component and the cross arm 37. The spacing control component can cause the cross arm 37 to move along the length direction of the cross frame 23, and the height control component can cause the cross arm 37 to rise or fall. The spacing control component includes a slider 24 slidably engaged with the cross frame 23. The slider 24 is connected to two groups of elastic members respectively arranged on both sides of the cross frame 23. A pulley 28 is installed on the slider 24 through a connecting frame 27. The pulley 28 cooperates with a limit plate 29 fixed on the column 3. The limit plate 29 is provided with a first rolling surface 2901 and a second rolling surface 2902 connected to each other. The first rolling surface 2901 is inclined, and the second rolling surface 2902 is straight.

[0067] In detail, a lug 2301 is fixedly provided on the side of the cross frame 23, and the elastic member includes a guide rod 25 fixed on the lug 2301 and a second cylindrical spring 26 sleeved on the outer periphery of the guide rod 25, the guide rod 25 passes through the slider 24 and is slidably connected to the slider 24, and two ends of the second cylindrical spring 26 are respectively connected to the lug 2301 and the slider 24;

[0068] It should be noted that before the first gear 18 cooperates with the first arc-shaped toothed plate 13, the distance between the two cross arms 37 is greater than the width of the molded part. When the first gear 18 cooperates with the first arc-shaped toothed plate 13, that is, when the telescopic arm 16 slides toward the inside of the guide arm 15, the pulley 28 first rolls along the first rolling surface 2901, and the pulley 28 drives the slider 24 to give way. Specifically, the slider 24 slides toward the lug 2301, the second column spring 26 is compressed, and the two cross arms 37 perform a close-together action. When the pulley 28 rolls along the second rolling surface 2902, the distance between the two cross arms 37 is less than the width of the molded part, so that the two cross arms 37 can smoothly lift the molded part from the two supporting blocks 46.

[0069] On the contrary, when the first gear 18 cooperates with the second arc-shaped tooth plate 14, that is, the telescopic arm 16 slides toward the outside of the guide arm 15 and resets, the two cross arms 37 drive the molded part to move away from the slewing bearing 1. In the latter part of the movement stroke, the pulley 28 disengages from the second rolling surface 2902, the second cylindrical spring 26 rebounds, and the slider 24 slides away from the lug 2301 on the cross frame 23 and resets, and the two cross arms 37 open, and the two restore the initial distance, so that the molded part falls onto the conveying equipment located next to the fixed base 50.

[0070] A guide rail 30 is also fixed to the side of the slider 24, and a movable block 31 is slidably engaged in the guide rail 30. The height adjustment assembly includes a cylinder 32 fixed to the movable block 31 and a vertical rod 33 slidably engaged with the cylinder 32. One end of the vertical rod 33 is fixedly connected to the cross arm 37 through a connecting plate 36, and the other end is connected to cooperate with a fixed plate group arranged on the column 3. The vertical rod 33 is fixed to a round table 3202 slidably arranged inside the cylinder 32. The outer periphery of the vertical rod 33 is also sleeved with a third cylindrical spring 34 and a fourth cylindrical spring 35 respectively located on both sides of the round table 3202. The head ends of the third cylindrical spring 34 and the fourth cylindrical spring 35 are connected to the round table 3202, and the tail ends abut against the inner wall of the cylinder 32.

[0071] The fixing plate group includes a first rectangular plate 39 fixed to the column 3 and a second rectangular plate 40 fixed to the first rectangular plate 39 by a plurality of fasteners 38. The first rectangular plate 39 is provided with a rectangular opening, and the second rectangular plate 40 is located in the rectangular opening. A rectangular frame groove adapted to the column 33 is formed between the first rectangular plate 39 and the second rectangular plate 40. The end of the column 33 away from the cross arm 37 passes through the rectangular frame groove. A convex column 3201 is also fixed to the outer wall of the cylinder 32. The first rectangular plate 39 is provided with an inclined through groove 3901 adapted to the convex column 3201, and the convex column 3201 passes through the inclined through groove 3901.

[0072] In order to facilitate the description of the motion state of each component, the rectangular frame slot is divided into a first empty section 41, a second empty section 42, a third empty section 43 and a fourth empty section 44 which are connected;

[0073] During the sliding process of the telescopic arm 16 toward the inside of the guide arm 15, the end of the vertical rod 33 away from the cross arm 37 slides along the first empty section 41. At the same time, the protruding column 3201 slides with the first rectangular plate 39 through the inclined through slot 3901, and the cylinder 32 drives the movable block 31 to slide up in the guide rail 30. The third column spring 34 is compressed. After the first gear 18 is separated from the first arc-shaped toothed plate 13, that is, the cross arm 37 reaches the end of the stroke. , the end of the vertical rod 33 away from the cross arm 37 reaches the intersection of the first empty section 41 and the second empty section 42, the third cylindrical spring 34 rebounds, and the third cylindrical spring 34 applies elastic thrust to the round table 3202, so that the vertical rod 33 drives the cross arm 37 to lift up through the connecting plate 36, so that the cross arm 37 lifts the molded part from the supporting block 46, and the end of the vertical rod 33 away from the cross arm 37 switches to the intersection of the second empty section 42 and the third empty section 43;

[0074] Subsequently, during the sliding reset process of the telescopic arm 16 toward the outside of the guide arm 15, the end of the vertical rod 33 away from the cross arm 37 slides along the third empty section 43. At the same time, the boss 3201 slides with the first rectangular plate 39 through the inclined through slot 3901 again, so that the cylinder 32 drives the movable block 31 to slide down in the guide rail 30. The fourth column spring 35 is compressed. After the first gear 18 is separated from the second arc-shaped toothed plate 14, that is, the cross arm 37 completes the reset, the end of the vertical rod 33 away from the cross arm 37 reaches the intersection of the third empty section 43 and the fourth empty section 44. The fourth column spring 35 rebounds, so that the vertical rod 33 drives the cross arm 37 to be lowered to the initial height through the connecting plate 36, and the end of the vertical rod 33 away from the cross arm 37 is reset to the intersection of the fourth empty section 44 and the first empty section 41.

[0075] It should be emphasized that when the two cross arms 37 are brought together and opened, the end of the vertical rod 33 away from the cross arm 37 and the boss 3201 move in a direction perpendicular to the first rectangular plate 39. In this regard, in order to prevent the boss 3201 and the vertical rod 33 from escaping from the inclined through groove 3901 and the rectangular frame groove, the end of the vertical rod 33 away from the cross arm 37 and the boss 3201 need to have sufficient length. At the same time, the fastener 38 is arranged in an "M" shape to avoid blocking the movement of the end of the vertical rod 33 away from the cross arm 37.

[0076] As another embodiment of the present invention, a stamping part forming method is also proposed, using the stamping forming equipment, comprising the following steps:

[0077] Step 1: The movable mold 4 is lowered to close the mold, and the plate is formed on the static mold 5 before the mold is separated;

[0078] Step 2: The slewing bearing 1 rotates, and the ejection mechanism is triggered to lift the molded part on the static mold 5, so that a gap is formed between the molded part and the static mold 5;

[0079] Step 3: The telescopic arm group is triggered to cause the two cross arms 37 to move toward the gap between the molded part and the static mold 5. The position adjustment mechanism first causes the two cross arms 37 to move closer together, and then causes the two cross arms 37 to rise to lift the molded part.

[0080] Step 4: The telescopic arm assembly is reset, causing the two cross arms 37 to drive the molded part to be pulled out from the gap between the molded part and the static mold 5. The position adjustment mechanism causes the two cross arms 37 to open, causing the molded part to fall onto the conveying equipment, and then causes the two cross arms 37 to return to their initial height.

[0081] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A continuous stamping forming device based on clamping and limiting, comprising a fixed base (50), a slewing bearing (1) arranged on the fixed base (50), and a plurality of stamping processing structures arranged on the slewing bearing (1) at equal distances along the circumference, wherein the stamping processing structure comprises two supporting arms (2) fixed on the slewing bearing (1) and a stamping die set arranged on the supporting arms (2); The stamping die set comprises a static die (5) fixed to the support arm (2) via a plurality of columns (3) and a dynamic die (4) movably arranged on the support arm (2) and adapted to the static die (5), the dynamic die (4) being fixedly connected to the movable ends of two hydraulic cylinders (6) mounted on the support arm (2), and the dynamic die (4) being provided with a plurality of groups of clamping and limiting mechanisms; It is characterized in that Also includes: a lifting mechanism, arranged on the static mold (5), capable of lifting the molded part on the static mold (5) after mold separation, so as to form a gap between the molded part and the static mold (5); A telescopic arm group, one group is provided on each side of the static mold (5), and the two groups of telescopic arm groups are respectively connected to a cross arm (37) via a group of position adjustment mechanisms. The telescopic arm group is triggered when the molded part on the static mold (5) is in a jacking state, and can cause the two cross arms (37) to move toward the gap. At the same time, the position adjustment mechanism can cause the two cross arms (37) to move together in the first stroke of the movement of the cross arms (37), and drive the two cross arms (37) to lift in the second stroke; The clamping and limiting mechanism comprises two cross bars (7) fixed on the movable mold (4), two shaft sleeves (8) respectively slidably arranged on the two cross bars (7), and two first cylindrical springs (9) respectively sleeved on the outer circumference of the two cross bars (7), one end of the first cylindrical spring (9) is connected to the second boss (801) arranged on the shaft sleeve (8), and the other end is connected to the first boss (701) arranged at the end of the cross bar (7); A connecting arm (10) is fixedly connected between the two shaft sleeves (8), and two limiting members (11) are fixedly provided at one end of the connecting arm (10) away from the shaft sleeves (8), and the limiting members (11) are arranged in a triangular shape; The ejection mechanism comprises two support columns (45) slidably arranged on the static mold (5), two support blocks (46) respectively fixed to the top ends of the two support columns (45), and an assembly part (47) fixedly connected to the bottom ends of the two support columns (45); a fifth column spring (48) is also sleeved on the outer circumference of the support column (45), and two ends of the fifth column spring (48) are respectively connected to the bottom of the static mold (5) and the assembly part (47); The assembly part (47) is further provided with a roller (49), the fixed base (50) is provided with an arc-shaped plate (12) cooperating with the roller (49), and one end of the arc-shaped plate (12) is provided with an inclined surface (1201); The telescopic arm group comprises a guide arm (15) fixedly connected to the column (3) and a telescopic arm (16) slidably fitted with the guide arm (15), the telescopic arm (16) being connected to a threaded drive assembly arranged at the bottom of the static mold (5), a cross frame (23) being fixed between the two telescopic arms (16), and two sets of position adjustment mechanisms being respectively arranged at two ends of the cross frame (23); The threaded drive assembly comprises a screw rod (21) rotatably mounted at the bottom of the static mold (5) and a threaded sleeve (22) sleeved on the screw rod (21) and threadedly connected to the screw rod (21), the threaded sleeve (22) being fixedly connected to the telescopic arm (16) via a fixed arm (17), and a strip-shaped through groove (1501) for allowing the fixed arm (17) to move is provided on the side of the guide arm (15); A third gear (20) is fixed to one end of the screw rod (21) facing the fixed base (50), and the third gear (20) is meshed with a second gear (19) rotatably mounted on the bottom of the static mold (5). A first gear (18) is also fixed to the rotating shaft of the second gear (19), and the first gear (18) cooperates with a first arc-shaped toothed plate (13) and a second arc-shaped toothed plate (14) fixed on the fixed base (50). When the slewing bearing (1) rotates, the first gear (18) cooperates with the first arc-shaped toothed plate (13) and the second arc-shaped toothed plate (14) in sequence, and can rotate in the forward and reverse directions. The position adjustment mechanism comprises a spacing adjustment component arranged on the cross frame (23) and a height adjustment component connecting the spacing adjustment component and the cross arm (37), wherein the spacing adjustment component can cause the cross arm (37) to move along the length direction of the cross frame (23), and the height adjustment component can cause the cross arm (37) to rise or fall; The spacing control component comprises a slider (24) slidably engaged on the cross frame (23), the slider (24) being connected to two groups of elastic members respectively arranged on both sides of the cross frame (23), a pulley (28) being installed on the slider (24) through a connecting frame (27), the pulley (28) being matched with a limit plate (29) fixed on the column (3), the limit plate (29) being provided with a first rolling surface (2901) and a second rolling surface (2902) connected to each other, the first rolling surface (2901) being inclined, and the second rolling surface (2902) being straight; A guide rail (30) is also fixed to the side of the slider (24), a movable block (31) is slidably engaged in the guide rail (30), the height adjustment component comprises a cylinder (32) fixed to the movable block (31) and a vertical rod (33) slidably engaged with the cylinder (32), one end of the vertical rod (33) is fixedly connected to the cross arm (37) through a connecting plate (36), and the other end is connected to cooperate with a fixed plate group arranged on the column (3); The vertical rod (33) is fixed to a truncated table (3202) slidably arranged inside the cylinder (32); the outer circumference of the vertical rod (33) is also sleeved with a third cylindrical spring (34) and a fourth cylindrical spring (35) respectively located on both sides of the truncated table (3202); the head ends of the third cylindrical spring (34) and the fourth cylindrical spring (35) are connected to the truncated table (3202), and the tail ends thereof abut against the inner wall of the cylinder (32); The fixed plate group comprises a first rectangular plate (39) fixed to the column (3) and a second rectangular plate (40) fixed to the first rectangular plate (39) via a plurality of fasteners (38); the first rectangular plate (39) is provided with a rectangular opening, and the second rectangular plate (40) is located in the rectangular opening; A rectangular frame groove adapted to the vertical rod (33) is formed between the first rectangular plate (39) and the second rectangular plate (40); one end of the vertical rod (33) away from the horizontal arm (37) passes through the rectangular frame groove; a convex column (3201) is fixedly provided on the outer wall of the cylinder (32); an inclined through groove (3901) adapted to the convex column (3201) is provided on the first rectangular plate (39), and the convex column (3201) passes through the inclined through groove (3901).

2. A stamping forming method, using the stamping forming equipment according to claim 1, characterized in that: The following steps are involved: Step 1: the movable mold (4) is lowered to close the mold, and the plate is formed on the static mold (5), and then the mold is separated; Step 2: The slewing bearing (1) rotates, and the ejection mechanism is triggered to eject the molded part on the static mold (5), so that a gap is formed between the molded part and the static mold (5); Step 3: The telescopic arm assembly is triggered to cause the two cross arms (37) to move toward the gap between the molded part and the static mold (5); the position adjustment mechanism first causes the two cross arms (37) to move closer together, and then causes the two cross arms (37) to rise to lift the molded part; Step 4: the telescopic arm assembly is reset, causing the two cross arms (37) to drive the molded part to be pulled out from the gap between the molded part and the static mold (5); the position adjustment mechanism causes the two cross arms (37) to open, causing the molded part to fall onto the conveying equipment, and then causes the two cross arms (37) to return to their initial height.

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