Material transferring system and method for continuous stamping and automobile part stamping device

Abstract

The invention provides a novel material transferring system and method for continuous stamping and an automobile part stamping device.The material transferring system comprises a material transferring track, the material transferring track is in a C shape, and a guide groove with an inverted-T-shaped longitudinal section is formed in the top of the material transferring track; the guide seat is movably positioned in the guide groove, and the longitudinal section of the guide seat is matched with the longitudinal section of the guide groove; two supporting columns are vertically arranged at the top of the guide seat, L-shaped clamping arms are horizontally hinged to the supporting columns, clamping parts with V-shaped or C-shaped longitudinal sections are arranged at the free ends of the clamping arms, and openings of the two clamping parts are opposite. When the workpieces are transferred, the two clamping parts are buckled at the two ends of the corresponding workpieces; the control mechanism is used for controlling the included angle between the two clamping arms.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts production, and relates to a material transfer system and method for continuous stamping and an automobile parts stamping device. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size. Stamping and forging belong to plastic processing (or pressure processing), collectively known as forging. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. 60-70% of the steel in the world is sheet material, most of which is stamped into finished products. The body, chassis, fuel tank, radiator fins of a car, the steam drum of a boiler, the shell of a container, the iron core silicon steel sheets of motors and electrical appliances are all stamped. There are also a large number of stamped parts in products such as instruments and meters, household appliances, bicycles, office machinery, and daily utensils.

[0003] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force in the mold and deform it, thereby obtaining product parts with certain shapes, sizes and performances. Sheet metal, mold and equipment are the three elements of stamping. In the actual production process, the stamping purpose of some parts is relatively simple, such as achieving simple punching or bending, etc. At this time, only a single punch press is needed to achieve the processing. However, in the production process of some relatively large or complex parts, such as in the production process of some sheet metal parts of automobiles, due to the special shape, it is usually difficult to process and shape them at one time through a single device. Usually, multiple punch presses are arranged in series, and then each punch press performs different processing content on the same part, and finally makes the product have the desired shape.

[0004] At present, parts are transported between adjacent punching presses through conveyor belts. That is, after the processing of the previous punching press is completed, the worker takes the parts off the lower die and places them on the upstream end of the conveyor belt. Then the conveyor belt transports the parts to the upstream side of the next punching press. Then another worker takes the parts off and places them on the lower die of the corresponding punching press, and this process repeats until the processing is completed. Summary of the invention

[0005] The object of the present invention is to provide a material transfer system for continuous stamping.

[0006] In order to achieve the above technical effects, the present invention provides a material transfer system for continuous stamping, comprising:

[0007] A material transfer track, the material transfer track is C-shaped, and a guide groove with a longitudinal section in the shape of an inverted T is opened on the top of the material transfer track;

[0008] A guiding seat and a driving mechanism for driving the guiding seat to move. The guiding seat is movably located in the guiding groove, and the longitudinal section of the guiding seat matches the longitudinal section of the guiding groove.

[0009] Support columns. Two support columns are vertically arranged on the top of the guiding seat. An L-shaped clamping arm is horizontally and hingedly arranged on the support columns. A clamping part with a V-shaped or C-shaped longitudinal section is arranged at the free end of the clamping arm. The openings of the two clamping parts face each other. When transferring a workpiece, the two clamping parts are buckled at both ends of the corresponding workpiece.

[0010] A control mechanism for controlling the included angle between the two clamping arms.

[0011] The present invention is further configured such that a support plate is horizontally arranged between the middle parts of the two support columns. The support column includes a first column body and a second column body. A first disc is horizontally rotatably arranged on the first column body. A second disc is horizontally rotatably arranged on the second column body. A plurality of first teeth are arranged on the side of the first disc. A plurality of second teeth meshing with the first teeth are arranged on the side of the second disc. The clamping part is located outside the movement tracks of the first disc and the second disc.

[0012] The present invention is further configured such that a first extension part is arranged on the outside of the first disc, and a second extension part is arranged on the outside of the second disc. A first elastic member in a continuously extended state is arranged between the first extension part and the second extension part. When the clamping part clamps the workpiece, the length of the first elastic member is L1. Two stop columns are arranged on the top of the support plate. When both clamping arms abut against the stop columns, the distance between the two clamping parts is the minimum value.

[0013] The present invention is further configured such that the control mechanism includes a first linkage part arranged inside the second disc. An unlocking plate is vertically arranged at the downstream end of the transfer track. An unlocking column is horizontally arranged on the top of the unlocking plate near one side of the transfer track. When the guiding seat is located at the downstream end of the guiding groove, the first linkage part is located between the first disc and the unlocking column, and the unlocking column abuts against the first linkage part. The length of the first elastic member is L2, where L2 > L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping parts.

[0014] The present invention is further configured such that a second linkage part is arranged inside the first disc, and the free end of the second linkage part is located outside the support plate.

[0015] It further includes:

[0016] A first vertical seat and a second vertical seat located below the first vertical seat, a first vertical rod is vertically movably disposed through the first vertical seat and the second vertical seat, the cross section of the first vertical rod is rectangular, and an outer wall of the first vertical rod is movably attached to the first vertical seat and the second vertical seat;

[0017] A spreading arm, the spreading arm is horizontally connected to the top of the first vertical rod, when the guide seat is located at the upstream end of the guide groove, the free end of the spreading arm abuts against the side of the second linkage portion away from the second disk body, and the projection of the abutment point between the spreading arm and the second linkage portion in the vertical direction is located on the side of the projection of the support plate in the vertical direction, the length of the first elastic member is L3, wherein L3>L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping portions;

[0018] A bottom plate body, one end of which is hingedly provided with an operating plate, the middle part of the free end of the operating plate is provided with an operating slot, both inner walls of the two sides of the operating slot are provided with long strip-shaped movable slots, both sides of the bottom of the first vertical rod are horizontally provided with movable parts, and the two movable parts are respectively movably attached to the inner walls of the two movable slots;

[0019] A first limit plate, the first limit plate is horizontally arranged on the outer wall of the first vertical rod, a second elastic member which is continuously in a compressed state is vertically arranged between the first limit plate and the second vertical seat, and when the first limit plate abuts against the bottom of the first vertical seat, the stretching arm is at the same height as the second linkage part, and stepping down the operating plate can make the stretching arm lower than the second linkage part and the support plate.

[0020] The present invention is further configured such that a second vertical rod is vertically movably passed through the first vertical seat and the second vertical seat, the cross section of the second vertical rod is rectangular, and the outer wall of the second vertical rod is movably fitted to the first vertical seat and the second vertical seat, a support arm is horizontally arranged on the top of the second vertical rod, a contour seat is horizontally arranged on the free end of the support arm, a contour groove for supporting a corresponding workpiece is opened on the top of the contour seat, and the projection of the contour seat in the vertical direction is located between the projections of the two clamping parts in the vertical direction;

[0021] A second limiting plate and a third limiting plate are provided on the outer wall of the second vertical rod, the second vertical rod vertically passes through the first limiting plate, the second limiting plate is located between the first limiting plate and the second vertical seat, the third limiting plate is located below the second vertical seat, a third elastic member which is continuously in a compressed state is provided between the second limiting plate and the second vertical seat, the acting force between the second elastic member and the first limiting plate is F1, the acting force between the third elastic member and the second limiting plate is F2, wherein F2>F1;

[0022] The first limiting plate includes a first state, a second state and a third state;

[0023] When the first limit plate is in the first state, the first limit plate abuts against the first vertical seat, the third limit plate abuts against the second vertical seat, the two ends of the workpiece in the profiling groove are directly opposite to the two clamping parts, and the profiling seat is lower than the clamping part or the clamping arm at the upstream end;

[0024] When the first limit plate is in the second state, the first limit plate abuts against the second limit plate, the spreading arm is separated from the second linkage part, and the two clamping parts abut against two ends of the corresponding workpiece;

[0025] When the first limiting plate is in the third state, the first limiting plate drives the second limiting plate to move downward, and the contour seat is separated from the corresponding workpiece.

[0026] The present invention is further configured as follows: a locking seat is horizontally arranged on the side of the second vertical seat, a locking groove is horizontally opened in the middle of the locking seat, a fourth elastic member which is continuously in a compressed state is horizontally arranged in the locking groove, a cylindrical locking column is horizontally arranged at the free end of the fourth elastic member, and the end of the locking column which is away from the fourth elastic member is hemispherical or dome-shaped, and a locking opening for the end of the locking column to be locked in is opened on the side of the second vertical rod, and when the second vertical rod moves downward, the locking opening acts on the end of the locking column and causes the locking column to move completely into the locking groove.

[0027] The present invention is further configured that the driving mechanism comprises:

[0028] A vertical guide rail connected to the frame of the punch press, with a dovetail groove vertically formed on the inner side of the guide rail;

[0029] A power column, the power column is vertically movable and fits in the dovetail groove, a connecting seat connected to an upper die seat of a machine tool is arranged on the top of the power column, and a power tooth body is arranged on the inner side of the power column;

[0030] Support base, the support base is vertically arranged on the lower die base of the punching machine, a rotating column is rotatably arranged on the support base, one end of the rotating column is provided with a transmission gear meshed with the power tooth body, the other end is provided with a transmission sprocket, the diameter of the transmission sprocket is larger than that of the transmission gear, and an auxiliary gear is also horizontally arranged on the support base, and the auxiliary gear is meshed with the power tooth body;

[0031] Receiving member, the receiving member is L-shaped, and the corner of the receiving member is arc-shaped. The vertical part of the receiving member is connected to the machine frame, and the horizontal part is connected to the lower die base. A receiving groove is opened through the receiving member, and a through opening for the transmission sprocket to pass through is opened on the inner side of the corner of the receiving member;

[0032] The first chain and the second chain fixedly connected to the end of the first chain. The first chain is matched with the transmission sprocket. The moving range of the first chain is in a vertical plane, and the moving range of the second chain is in a horizontal plane. A synchronous rod is vertically arranged at the bottom of the guiding seat, and the free end of the second chain is connected to the synchronous rod. A matching groove for the second chain to enter is opened at the bottom of the guiding groove, and the matching groove communicates with the receiving groove. The synchronous rod movably passes through the matching groove. The longitudinal section of the matching groove is convex-shaped. The second chain can move into the matching groove, and the width of the top of the matching groove is smaller than the width of the second chain. Resistance-reducing balls are rotatably arranged on the contact sides of the guiding seat and the guiding groove.

[0033] The present invention also provides a method for using the continuous stamping material transfer system as described in any one of the above, including the following steps:

[0034] S1, when the punching machine finishes stamping, the upper die base drives the upper die to rise and separate from the lower die, and at this time the workpiece is located on the lower die;

[0035] S2, the worker downstream of the punching machine manually removes the workpiece on the lower die and clamps both ends of the workpiece through two clamping parts;

[0036] S3, the worker upstream of the punching machine manually places the raw material or the workpiece of the previous punching machine on the lower die;

[0037] S4, the upper die base descends, the driving mechanism drives the guiding seat to move along the guiding groove, and sends the workpiece to the downstream end of the guiding groove, wherein the downstream end of the material transfer track is at the lower die base of the downstream punching machine, or a conveyor belt for sending out the finished product is below the downstream end of the material transfer track;

[0038] S5, the upper die base rises, the driving mechanism drives the empty guiding seat to move to the upstream end of the guiding groove, and returns to S1;

[0039] The length of the clamping arm and the shape of the clamping portion at each punch are adapted to the workpiece at the punch.

[0040] The present invention also provides an automobile parts stamping device, comprising a plurality of punching machines arranged in sequence and a material transfer system for continuous stamping as described in any of the above items, wherein a material transfer track is provided between two adjacent punching machines, the punching machine comprises a lower die seat, the upstream end of the material transfer track is connected to the top of the previous lower die seat, and the downstream end is connected to the top of the next lower die seat.

[0041] Compared with the prior art, the present invention provides a material transfer system and method for continuous stamping and an automobile parts stamping device. When stamping parts (preferably automobile parts, and other products that require continuous stamping according to actual conditions), first, after the punch press completes the stamping, the upper die seat drives the upper die to rise and separate from the lower die, and at this time the workpiece is located on the lower die; then the worker on the downstream side of the punch press manually removes the workpiece on the lower die, and clamps the two ends of the workpiece through two clamping parts; the worker on the upstream side of the punch press manually places the raw material (i.e., the feeding side of the first punch press) or the workpiece of the previous punch press on the lower die (two workers are provided on both sides of each punch press to cooperate in the operation);

[0042] Then the upper die seat moves downward, and the driving mechanism drives the guide seat to move along the guide groove, and sends the workpiece to the downstream end of the guide groove, wherein the downstream end of the transfer track is located at the lower die seat of the downstream punch press, or the lower part of the downstream end of the transfer track is a conveyor belt for sending the finished product out, that is, the lower part of the transfer track at the end is a conveyor belt for sending the product out;

[0043] After that, the upper die seat rises again after completing the corresponding stamping, and the driving mechanism drives the empty guide seat to move to the upstream end of the guide groove, and returns to S1, and continuous stamping is performed reciprocatingly. It is also particularly important to note that the length of the clamping arm and the shape of the clamping part at each bed punch are adapted to the workpiece at the bed punch, that is, if the length and / or shape of the two ends of the workpiece do not change during the continuous stamping process, that is, different punching machines only perform stamping processing on the middle and / or both sides, then the length of all clamping arms and the shape of the clamping part can be the same; on the contrary, if the length and / or shape of the workpiece at both ends change as the processing progresses, the shape of the clamping arm and / or the clamping part at the corresponding station also needs to be adaptively adjusted, so that the clamping arm and the clamping part at the station can clamp and transport the workpiece normally. It should also be noted that in actual use, the clamping arm and the workpiece will not act on the frame during the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the material transfer system for continuous stamping of the present invention when in use;

[0045] Figure 2 It is a schematic diagram of some machine tools when the transfer material system for continuous stamping of the present invention is in use;

[0046] Figure 3 It is Figure 2 an enlarged view of part A in

[0047] Figure 4 It is Figure 3 an enlarged view of part A1 in

[0048] Figure 5 It is Figure 2 an enlarged view of part B in

[0049] Figure 6 It is a schematic diagram of the transfer material system for continuous stamping of the present invention and the lower die holder;

[0050] Figure 7 It is Figure 6 an enlarged view of part C in

[0051] Figure 8 It is Figure 7 an enlarged view of part C1 in

[0052] Figure 9 It is a schematic diagram of the transfer track part in the transfer material system for continuous stamping of the present invention;

[0053] Figure 10 It is Figure 9 an enlarged view of part D in

[0054] Figure 11 It is a cross-sectional view of the transfer track in the transfer material system for continuous stamping of the present invention;

[0055] Figure 12 It is a schematic diagram of the first vertical seat part in the transfer material system for continuous stamping of the present invention;

[0056] Figure 13 It is Figure 12 an enlarged view of part E in

[0057] Figure 14 It is Figure 12 an enlarged view of part F in

[0058] Figure 15 It is a cross-sectional view of the first vertical seat part in the transfer material system for continuous stamping of the present invention;

[0059] Figure 16 It is a schematic diagram of the guide seat part in the transfer material system for continuous stamping of the present invention;

[0060] Figure 17 It is a schematic diagram of the first chain and the second chain in the transfer material system for continuous stamping of the present invention.

[0061] Among them, 1, material transfer track; 2, guide groove; 3, guide seat; 4, clamping arm; 5, clamping part; 6, support plate; 7, first column; 8, second column; 9, first disc; 10, second disc; 11, first tooth; 12, second tooth; 13, first extension; 14, second extension; 15, first elastic member; 16, termination column; 17, first linkage; 18, unlocking plate; 19, unlocking column; 20, second linkage; 21, first vertical seat; 22, second vertical seat; 23, first vertical rod; 24, opening arm; 25, bottom plate; 26, operating plate; 27, operating groove; 28, movable groove; 29, first limit plate; 30, second elastic member; 31, The second vertical rod; 32, support arm; 33, contour seat; 34, contour groove; 35, second limit plate; 36, third limit plate; 37, third elastic member; 38, locking seat; 39, fourth elastic member; 40, locking column; 41, locking mouth; 42, guide rail; 43, punch press; 44, frame; 46, power column; 47, upper die seat; 48, connecting seat; 49, power gear body; 50, support seat; 51, lower die seat; 52, rotating column; 53, transmission gear; 54, transmission sprocket; 55, auxiliary gear; 56, accommodating member; 57, accommodating groove; 58, through mouth; 59, first chain; 60, second chain; 61, synchronization rod; 62, matching groove; 63, drag reduction ball. DETAILED DESCRIPTION

[0062] A material transfer system for continuous stamping, such as Figures 1 to 17 As shown, including:

[0063] A transfer track 1, wherein the transfer track 1 is in a horizontal C-shape, and a guide groove 2 with a longitudinal section in an inverted T-shape is provided on the top of the transfer track 1;

[0064] A guide seat 3 and a driving mechanism for driving the guide seat 3 to move, wherein the guide seat 3 is movably located in the guide groove 2, and the longitudinal section of the guide seat 3 matches the longitudinal section of the guide groove 2;

[0065] A support column, wherein two support columns are vertically arranged on the top of the guide seat 3, and an L-shaped clamping arm 4 is horizontally hingedly arranged on the support column, and a clamping portion 5 with a V-shaped or C-shaped longitudinal section is arranged at the free end of the clamping arm 4, and the openings of the two clamping portions 5 are facing each other, and when the workpiece is transferred, the two clamping portions 5 are buckled at the two ends of the corresponding workpiece;

[0066] A control mechanism, wherein the control mechanism is used to control the angle between the two clamping arms 4 .

[0067] A support plate 6 is horizontally arranged between the middles of the two support columns. The support columns include a first column body 7 and a second column body 8. A first disc body 9 is horizontally rotatably arranged on the first column body 7, and a second disc body 10 is horizontally rotatably arranged on the second column body 8. A plurality of first tooth bodies 11 are arranged on the side of the first disc body 9, and a plurality of second tooth bodies 12 meshing with the first tooth bodies 11 are arranged on the side of the second disc body 10. The clamping part 5 is located outside the movement tracks of the first disc body 9 and the second disc body 10.

[0068] A first extension part 13 is arranged on the outside of the first disc body 9, and a second extension part 14 is arranged on the outside of the second disc body 10. A first elastic part 15 in a continuously extended state is arranged between the first extension part 13 and the second extension part 14. When the clamping part 5 clamps a workpiece, the length of the first elastic part 15 is L1. Two stop columns 16 are arranged on the top of the support plate 6. When both of the two clamping arms 4 abut against the stop columns 16, the distance between the two clamping parts 5 is the minimum value.

[0069] The control mechanism includes a first linkage part 17 arranged inside the second disc body 10. An unlocking plate 18 is vertically arranged at the downstream end of the transfer track 1. A horizontal unlocking column 19 is arranged on the top of the unlocking plate 18 close to one side of the transfer track 1. When the guiding seat 3 is located at the downstream end of the guiding groove 2, the first linkage part 17 is located between the first disc body 9 and the unlocking column 19, and the unlocking column 19 abuts against the first linkage part 17. The length of the first elastic part 15 is L2, where L2 > L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping parts 5.

[0070] A second linkage part 20 is arranged inside the first disc body 9, and the free end of the second linkage part 20 is located outside the support plate 6;

[0071] It further includes:

[0072] A first vertical seat 21 and a second vertical seat 22 (both fixedly connected to the side of the machine tool) located below the first vertical seat 21. A first vertical rod 23 vertically passes through the first vertical seat 21 and the second vertical seat 22. The cross-section of the first vertical rod 23 is rectangular, and the outer wall of the first vertical rod 23 is in movable contact with the first vertical seat 21 and the second vertical seat 22;

[0073] The spreading arm 24, the spreading arm 24 is horizontally connected to the top of the first vertical rod 23. When the guiding seat 3 is located at the upstream end of the guiding groove 2, the free end of the spreading arm 24 abuts against the side of the second linkage portion 20 away from the second disc body 10, and the projection of the contact position between the spreading arm 24 and the second linkage portion 20 in the vertical direction is located at the side of the projection of the support plate 6 in the vertical direction. The length of the first elastic member 15 is L3, where L3 > L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping portions 5;

[0074] The bottom plate body 25 (on the ground), one end of the bottom plate body 25 is hingedly provided with an operation plate 26. The middle of the free end of the operation plate 26 is provided with an operation groove 27. Long strip-shaped moving grooves 28 are provided on both inner walls of the operation groove 27. Both sides of the bottom of the first vertical rod 23 are horizontally provided with moving portions, and the two moving portions are respectively movably attached to the inner walls of the two moving grooves 28;

[0075] The first limiting plate 29, the first limiting plate 29 is horizontally arranged on the outer wall of the first vertical rod 23. A second elastic member 30 in a continuously compressed state is vertically arranged between the first limiting plate 29 and the second vertical seat 22. And when the first limiting plate 29 abuts against the bottom of the first vertical seat 21, the spreading arm 24 and the second linkage portion 20 are at the same height. Stepping on the operation plate 26 downward can make the spreading arm 24 lower than the second linkage portion 20 and the support plate 6.

[0076] A second vertical rod 31 is vertically movably arranged through the first vertical seat 21 and the second vertical seat 22. The cross section of the second vertical rod 31 is rectangular, and the outer wall of the second vertical rod 31 is movably attached to the first vertical seat 21 and the second vertical seat 22. A support arm 32 is horizontally arranged at the top of the second vertical rod 31. A profiling seat 33 is horizontally arranged at the free end of the support arm 32. A profiling groove 34 for supporting the corresponding workpiece is provided at the top of the profiling seat 33. The projection of the profiling seat 33 in the vertical direction is located between the projections of the two clamping portions 5 in the vertical direction;

[0077] A second limiting plate 35 and a third limiting plate 36 are provided on the outer wall of the second vertical rod 31. The second vertical rod 31 vertically passes through the first limiting plate 29. The second limiting plate 35 is located between the first limiting plate 29 and the second vertical seat 22. The third limiting plate 36 is located below the second vertical seat 22. A third elastic member 37 which is continuously in a compressed state is provided between the second limiting plate 35 and the second vertical seat 22. The acting force between the second elastic member 30 and the first limiting plate 29 is F1, and the acting force between the third elastic member 37 and the second limiting plate 35 is F2, wherein F2>F1.

[0078] The first limiting plate 29 includes a first state, a second state and a third state;

[0079] When the first limit plate 29 is in the first state, the first limit plate 29 abuts against the first vertical seat 21, the third limit plate 36 abuts against the second vertical seat 22, the two ends of the workpiece in the profiling groove 34 are directly opposite to the two clamping parts 5, and the profiling seat 33 is lower than the clamping part 5 or the clamping arm 4 at the upstream end;

[0080] When the first limit plate 29 is in the second state, the first limit plate 29 abuts against the second limit plate 35, the spreading arm 24 is separated from the second linkage portion 20, and the two clamping portions 5 abut against two ends of the corresponding workpiece;

[0081] When the first limiting plate 29 is in the third state, the first limiting plate 29 drives the second limiting plate 35 to move downward, and the contour seat 33 is separated from the corresponding workpiece.

[0082] A locking seat 38 is horizontally arranged on the side of the second vertical seat 22, and a locking groove is horizontally opened in the middle of the locking seat 38. A fourth elastic member 39 which is continuously in a compressed state is horizontally arranged in the locking groove, and a cylindrical locking column 40 is horizontally arranged at the free end of the fourth elastic member 39. The end of the locking column 40 facing away from the fourth elastic member 39 is hemispherical or dome-shaped. A locking opening 41 for the end of the locking column 40 to be locked in is opened on the side of the second vertical rod 31. When the second vertical rod 31 moves downward, the locking opening 41 acts on the end of the locking column 40 to make the locking column 40 move completely into the locking groove.

[0083] The driving mechanism comprises:

[0084] A vertically oriented guide rail 42, the guide rail 42 being connected to the frame 44 of a punching machine 43 (wherein the machine tool, the frame 44, the upper die holder 47, the lower die holder 51, etc. are not the structures claimed by the material transfer system, and are only introduced for auxiliary illustration), a dovetail groove being vertically formed inside the guide rail 42;

[0085] A power column 46, the power column 46 being vertically and movably fitted in the dovetail groove, a connecting seat 48 connected to the upper die holder 47 of the machine tool being provided at the top of the power column 46, and a power tooth body 49 being provided inside the power column 46;

[0086] A support seat 50, the support seat 50 being vertically provided on the lower die holder 51 of the punching machine 43, a rotating column 52 being rotatably provided on the support seat 50, a transmission gear 53 meshing with the power tooth body 49 being provided at one end of the rotating column 52, a transmission sprocket 54 being provided at the other end, the diameter of the transmission sprocket 54 being larger than the diameter of the transmission gear 53, and an auxiliary gear 55 being horizontally provided on the support seat 50, the auxiliary gear 55 meshing with the power tooth body 49;

[0087] A receiving member 56, the receiving member 56 being L-shaped and having an arc-shaped corner, the vertical portion of the receiving member 56 being connected to the frame 44 and the horizontal portion being connected to the lower die holder 51, a receiving groove 57 being formed through the receiving member 56, and a through hole 58 for the transmission sprocket 54 to movably pass through being formed inside the corner of the receiving member 56;

[0088] A first chain 59 and a second chain 60 fixedly connected to the end of the first chain 59, the first chain 59 cooperating with the transmission sprocket 54, the movement range of the first chain 59 being in a vertical plane, the movement range of the second chain 60 being in a horizontal plane, a synchronizing rod 61 being vertically provided at the bottom of the guide seat 3, the free end of the second chain 60 being connected to the synchronizing rod 61, a mating groove 62 for the second chain 60 to movably enter being formed at the bottom of the guide groove 2, the mating groove 62 communicating with the receiving groove 57, the synchronizing rod 61 movably passing through the mating groove 62, the longitudinal section of the mating groove 62 being convex-shaped, the second chain 60 being movable into the mating groove 62, and the width of the top of the mating groove 62 being smaller than the width of the second chain 60, and drag-reducing balls 63 being rotatably provided on the contact sides of the guide seat 3 and the guide groove 2.

[0089] The present invention also provides a method of using the transfer system for continuous stamping as described in any one of the above, including the following steps: after the punching press 43 finishes stamping, the upper die holder 47 drives the upper die to rise and separate from the lower die, and at this time the workpiece is located on the lower die; the worker downstream of the punching press 43 manually removes the workpiece on the lower die and clamps both ends of the workpiece through two clamping parts 5; the worker upstream of the punching press 43 manually places the raw material or the workpiece of the previous punching press 43 on the lower die; the upper die holder 47 descends, and the driving mechanism drives the guiding seat 3 to move along the guiding groove 2 and sends the workpiece to the downstream end of the guiding groove 2, wherein the downstream end of the transfer track 1 is at the lower die holder 51 of the downstream punching press 43, or below the downstream end of the transfer track 1 is a conveyor belt for sending out the finished product; the upper die holder 47 rises, and the driving mechanism drives the empty guiding seat 3 to move to the upstream end of the guiding groove 2 and returns to the first step; wherein the length of the clamping arm 4 and the shape of the clamping part 5 at each punching press are adapted to the workpiece at that punching press.

[0090] The present invention also provides a stamping device for automotive parts, including a plurality of punching presses 43 arranged in sequence and the transfer system for continuous stamping as described in any one of the above. There is a transfer track 1 between two adjacent punching presses 43. The punching press 43 includes a lower die holder 51. The upstream end of the transfer track 1 is connected to the top of the previous lower die holder 51, and the downstream end is connected to the top of the next lower die holder 51.

[0091] The transfer system, method and stamping device for automotive parts provided by the present invention, when stamping parts (preferably automotive parts, and can also be other products that need continuous stamping according to actual situations; in this embodiment, automotive parts are used as example parts for illustration), first, after the punching press 43 finishes stamping, the upper die holder 47 drives the upper die to rise and separate from the lower die, and at this time the workpiece is located on the lower die; then the worker on the downstream side of the punching press 43 manually removes the workpiece on the lower die and clamps both ends of the workpiece through two clamping parts 5; the worker on the upstream side of the punching press 43 manually places the raw material (i.e., the feeding side of the first punching press 43) or the workpiece of the previous punching press 43 on the lower die (there are two workers on both sides of each punching press 43 for cooperative operation);

[0092] Then the upper die holder 47 descends, and the driving mechanism drives the guiding seat 3 to move along the guiding groove 2 and sends the workpiece to the downstream end of the guiding groove 2, wherein the downstream end of the transfer track 1 is at the lower die holder 51 of the downstream punching press 43, or below the downstream end of the transfer track 1 is a conveyor belt for sending out the finished product, that is, below the transfer track 1 at the end is a conveyor belt for sending out the product.

[0093] After the upper die holder 47 completes the corresponding stamping and then rises again, the driving mechanism drives the empty guide seat 3 to move to the upstream end of the guide groove 2 and returns to S1, and continuous stamping is carried out in such a reciprocating manner. It should be particularly noted that the length of the clamping arm 4 and the shape of the clamping part 5 at each bed punching position are adapted to the workpiece at that bed punching position, that is, if the length and / or shape at both ends of the workpiece do not change during continuous stamping, that is, different punching presses 43 only perform stamping processing on the middle part and / or both sides, then the lengths of all the clamping arms 4 and the shapes of the clamping parts 5 can be the same; on the contrary, if the length and / or the shape at both ends of the workpiece change during processing, then the shapes of the clamping arms 4 and / or the clamping parts 5 at the corresponding workstations also need to be adjusted adaptively (the profiling seat 33 and the profiling groove 34 also need to be adjusted according to the actual shape of the workpiece), and the clamping arms 4 and the clamping parts 5 at that workstation can normally clamp and convey the workpiece. It should also be noted that during actual use, neither the clamping arm 4 nor the workpiece will act on the machine frame 44 during the transfer process.

[0094] During actual processing, at a certain node, the upper dies and the lower dies of all the punching presses 43 are in the closed die state. At this time, all the guide seats 3 are located at the downstream ends of the corresponding transfer tracks 1; specifically, there is a conveyor belt below the downstream end of the transfer track 1 for receiving the finished workpieces and conveying them outwards, and the downstream ends of all the other transfer tracks 1 are connected to the lower die holder 51 (there are perforated steel plates on both sides of the bottom of the transfer track 1 and the receiving part 56, and there is a movable steel plate in the inverted T-shaped groove at the top of the lower die holder 51; when fixing the transfer track 1 and the receiving part 56, after moving them to the appropriate positions, pass the long bolts through the steel plates and thread them with the movable steel plate, and the movable steel plate is buckled in the T-shaped groove, thus fixing the transfer track 1 and the receiving part 56); and at this time, the unlocking column 19 abuts against the first linkage part 17, so that both the first disc body 9 and the second disc body 10 rotate by a certain angle (the first tooth body 11 and the second tooth body 12 between them achieve synchronous rotation), and at the same time, the two clamping arms 4 and the clamping part 5 are in the open state, so the workpiece clamped by the clamping part 5 falls onto the lower die holder 51; according to the actual situation, a receiving frame can also be arranged below the place where the workpiece falls to prevent impact and the workpiece from running off track.

[0095] After the stamping is completed, all the upper die holders 47 rise, and at the same time, the power column 46 is raised through the connecting seat 48. While rising, the power column 46 drives the transmission gear 53, the rotating column 52 and the transmission sprocket 54 to rotate through the power tooth body 49. The transmission sprocket 54 drives the guide seat 3 to move towards the upstream end direction of the guide groove 2 through the first chain 59 and the second chain 60; and when the upper die holder 47 moves to the highest height, at this time, the guide seat 3 also just moves to the upstream end of the guide groove 2.

[0096] Before the guide seat 3 moves to the upstream end, the second linkage portion 20 will first act on the free end of the spreading arm 24 (the spreading arm 24 is higher than the support plate 6), and under the action of the spreading arm 24, the second linkage portion 20, the first disk body 9, the second disk body 10, and the two clamping arms 4 all rotate; when the guide seat 3 reaches the upstream end of the guide groove 2, the distance between the two clamping portions 5 is greater than the length of the workpiece to be clamped and fixed.

[0097] Then, the worker on the downstream side of the bed punching removes the workpiece on the lower die and places it into the profiling groove 34 on the top of the profiling seat 33. The profiling groove 34 fits against the lower side of the workpiece, thus ensuring that the workpiece is in a horizontal state, and at the same time, the two ends of the workpiece are facing the two clamping portions 5. Then the worker steps on the operation plate 26 downward with the foot. While the operation plate 26 moves downward, it drives the first vertical rod 23 to move downward, and makes the spreading arm 24 lower than the second linkage portion 20; at this time, under the pulling force of the first elastic member 15 (having a large elastic force and sufficient to clamp the workpiece), the two clamping portions 5 approach each other and clamp the two ends of the workpiece. During the downward movement of the first vertical rod 23, it also drives the first limiting plate 29 to move downward; when the workpiece is clamped, the first limiting plate 29 is still higher than the second limiting plate 35 at this time, so the workpiece is still on the profiling seat 33 at this time.

[0098] After that, the worker continues to step on the operation plate 26 downward, and drives the second limiting plate 35 downward through the first limiting plate 29. At the same time, when the second limiting plate 35 moves downward, it also needs to drive the positioning post 40 to move outward through the positioning opening 41. Therefore, the worker needs to apply a relatively obvious force when driving the second vertical rod 31 to move downward. Therefore, when the worker actually operates, a smaller force can be used to separate the unlocking column 19 from the first linkage portion 17 and clamp the two ends of the workpiece; then at a certain node, a larger force needs to be used to drive the second vertical rod 31 to move downward, and at the same time, separate the workpiece from the profiling seat 33 to facilitate the downstream transportation of the workpiece. Since the worker uses the foot - stepping method, the weight can be used for operation, making the operation more convenient.

[0099] While the worker on the downstream side of the punching machine 43 holds the workpiece, the worker on the upstream side of the punching machine 43 places the workpiece that previously fell into the receiving frame onto the corresponding lower die (if it is the punching machine 43 at the upstream end, the worker places the raw material onto the corresponding lower die); after the workpiece (or raw material) is placed, the upper die holder 47 moves downward, and at the same time drives the power column 46 to move, the transmission gear 53, the rotating column 52, the transmission sprocket 54, and the auxiliary gear 55 (further improving the position stability of the power column 46) to rotate. Then, the transmission sprocket 54 drives the first chain 59 to move. Although both the first chain 59 and the second chain 60 can be bent, they also have a certain rigidity. Therefore, the first chain 59 and the second chain 60 drive the guide seat 3 to move along the length direction of the guide groove 2. During the movement, the synchronous rod 61 moves through the mating groove 62, but the inner wall of the mating groove 62 can limit the second chain 60, so that the second chain 60 can stably convey the guide seat 3 forward. During the entire transportation process, the first chain 59 is always located in the receiving groove 57 (that is, it does not enter the mating groove 62), and the transmission sprocket 54 is always meshed with the first chain 59, while the second chain 60 can be located in the horizontal part of the receiving groove 57 and the mating groove 62.

[0100] After the lower die holder 51 starts to descend, the worker can release the operation panel 26 and reset the spreading arms 24 and the like for the next use. Before the lower die holder 51 descends to the lowest height, the unlocking column 19 abuts against the first linkage part 17, causing the workpiece to fall into the receiving frame. Due to the existence of the stop column 16, when the clamping arms 4 are in the middle of the transfer track 1, the two clamping arms 4 are still in the open state, which not only facilitates subsequent clamping of the workpiece but also enables the spreading arms 24 to act stably on the second linkage part 20. Moreover, when the clamping arms 4 and the clamping part 5 are moving towards the upstream end of the guiding groove 2, at this time the profiling seat 33 has risen to the highest position. Preferably, the profiling seat 33 does not affect the movement of the clamping arms 4 and the clamping part 5 at this time, so that the clamping arms 4 and the clamping part 5 can be normally reset. However, if the top of the profiling seat 33 is higher than the bottom of the clamping part 5, since the lower side of the clamping part 5 is inclined, the lower side of the clamping part 5 can still drive the profiling seat 33 to displace downward by a certain distance, enabling the clamping part 5 to normally cross over the profiling seat 33. In actual use, if the clamping part 5 and the clamping arms 4 cannot naturally cross over the profiling seat 33, a pressing rod can also be horizontally welded outside the second vertical rod 31. In this way, during the reset process of the guiding seat 3, manually press the pressing rod downward. At this time, it does not affect the height of the spreading arms 24, but can reduce the height of the profiling seat 33, so that the clamping arms 4 and the clamping part 5 can move normally. Or in another embodiment, the upstream clamping arm 4 includes two parts, namely a fixed part and a hinged part (L-shaped) hinged to the upper side of the fixed part, and the hinged part can only swing up and down relative to the fixed part. The clamping part 5 is connected to the free end of the hinged part, and the fixed part is connected to the first disc body 9. At the same time, the right side of the profiling seat 33 (relative to the worker at this station) is chamfered or rounded. In this way, during the reset process of the clamping arm 4, the hinged part or the clamping part 5 acts on the right side of the profiling seat 33 and moves upward, thus normally crossing over the profiling seat 33. After crossing over, the clamping part 5 and the hinged part swing downward under the action of gravity to reset and wait for clamping the workpiece. During the movement of the guiding seat 3, its shape is also arc-shaped, and there are resistance-reducing balls 63 on all the surfaces in contact with the inner wall of the guiding groove 2, so as to reduce the movement resistance of the guiding seat 3.

[0101] When the conventional continuous stamping press 43 is in operation, a conveyor belt is usually installed between two adjacent presses 43. After the worker at the previous press 43 removes the workpiece, he turns around, bends down, and places the workpiece on the conveyor belt. Then the workpiece is transported to the next press 43. At the next press 43, the worker needs to turn around, bend down to remove the workpiece, then rotate to the upstream side of the corresponding press 43, and place the workpiece on the lower die. However, in the processing process of this application, the workers between the presses 43 do not need to turn around or bend down for operation. Therefore, the labor intensity of the operation is greatly reduced. At the same time, since the workpieces are directly transferred through the transfer track 1, the distance between the presses 43 can be reduced, making the space utilization rate of the workshop higher.

[0102] The transfer track 1 is generally C-shaped as a whole, but preferably there are two straight sections at both ends, and the straight sections face the front of the worker. In this way, the space between the worker and the press 43 can be avoided being occupied by the transfer track 1, enabling the worker to be closer to the lower die, thus making the operation more labor-saving and convenient. At the same time, the diameter of the driving sprocket 54 is larger than that of the driving gear 53. Therefore, even if the moving range of the upper die holder 47 is small, through the amplification effect of the driving sprocket 54 and the driving gear 53, the guide seat 3 can obtain the required stroke.

[0103] Meanwhile, during actual use, if the length of the first chain 59 is insufficient due to the specifications of the receiving member 56, a reverse J-shaped or wavy supplementary shell (not shown in the figure) can be communicatively provided at the top of the receiving member 56. The supplementary shell is hollow, and the first chain 59 can enter the supplementary shell movably, and the supplementary shell does not affect the normal lifting of the upper die holder 47. At the same time, the supplementary shell is communicatively connected to the receiving member 56 through an arc-shaped structure, so that the first chain 59 in the receiving member 56 and the first chain 59 in the supplementary shell can move relatively easily (containing grease). Meanwhile, if the length of the second chain 60 is insufficient to send the workpiece in front of the worker on the lower side, the lengths of the transfer track 1 and the guide groove 2 can be appropriately shortened so that the second chain 60 can send the workpiece to the end of the guide groove. At the same time, the positions of the unlocking plate 18 and the unlocking post 19 are also adjusted adaptively. Specifically, for example, the end of the transfer track 1 is moved to a position close to the left side of the downstream worker, and the bottom of the receiving frame on the lower die holder 51 on the lower side is inclined. During actual use, the workpiece naturally falls to the top or a position close to the top of the receiving frame, and then slides downward under the action of gravity and finally moves in front of the worker. At this time, the part of the receiving member 56 connected to the lower die holder 51 is (slightly) inclined upward, with a small angle with the horizontal plane, such as 2-6°. At the same time, the transfer track 1 as a whole is also inclined, and the bottom part of the transfer track 1 and the receiving member 56 are in the same plane. In this way, when the workpiece is sent to the end of the guide groove 2, the workpiece can be appropriately lifted. At the same time, the receiving frame is also inclined, and its top is located below the top of the transfer track 1, and at this time, the workpiece can be normally guided. During actual use, the shape of the receiving frame can also be adjusted accordingly. For example, the receiving frame is made into an inclined arc shape (and there are plates for limiting the workpiece on both sides), and the limiting plates do not affect the sliding of the workpiece, so that it can not only receive and guide the workpiece, but also send the workpiece in front of the worker on the lower side.

[0104] It should also be supplemented and explained that all "provided" and similar descriptive words in this application (especially in the specification) express that there is a connection relationship between two structures, but the specific means of connection between the two are not overly limited, and usually are conventional connection means, that is, it should be understood that this means is the prior art and does not need to be elaborated too much. For example, "n is provided on m" only expresses that there is an n structure on the m structure, and whether the two are connected by welding, riveting, adhesive connection or integrally formed is within the protection scope of this application; another example is "y is rotatably provided on x", which only expresses that y and x can rotate relative to each other, and as for whether the two are rotatably connected by a bearing, or y directly passes through x and is rotatably connected to x, or other achievable ways, they are all within the protection scope of this application.

Claims

1. A material transfer system for continuous stamping, characterized in that: include: A material transfer track (1), the material transfer track (1) is C-shaped, and a guide groove (2) with a longitudinal section in the shape of an inverted T is provided at the top of the material transfer track (1); A guide seat (3) and a driving mechanism for driving the guide seat (3) to move, wherein the guide seat (3) is movably located in the guide groove (2), and the longitudinal section of the guide seat (3) matches the longitudinal section of the guide groove (2); A support column, wherein two support columns are vertically arranged on the top of the guide seat (3), and an L-shaped clamping arm (4) is horizontally hingedly arranged on the support column, and a clamping portion (5) with a V-shaped or C-shaped longitudinal section is arranged at the free end of the clamping arm (4), and the openings of the two clamping portions (5) are facing each other, and when the workpiece is transferred, the two clamping portions (5) are buckled at the two ends of the corresponding workpiece; A control mechanism, wherein the control mechanism is used to control the angle between the two clamping arms (4).

2. The continuous stamping material transfer system according to claim 1, characterized in that: A support plate (6) is horizontally arranged between the middle parts of the two support columns. The support column comprises a first column (7) and a second column (8). A first disk (9) is horizontally rotatably arranged on the first column (7), and a second disk (10) is horizontally rotatably arranged on the second column (8). A plurality of first teeth (11) are arranged on the side of the first disk (9), and a plurality of second teeth (12) meshing with the first teeth (11) are arranged on the side of the second disk (10). The clamping portion (5) is located outside the movement trajectory of the first disk (9) and the second disk (10).

3. The continuous stamping material transfer system according to claim 2, characterized in that: A first extension portion (13) is arranged on the outer side of the first disk body (9), a second extension portion (14) is arranged on the outer side of the second disk body (10), a first elastic member (15) which is continuously in an extended state is arranged between the first extension portion (13) and the second extension portion (14), when the clamping portion (5) clamps a workpiece, the length of the first elastic member (15) is L1, two end columns (16) are arranged on the top of the support plate (6), when the two clamping arms (4) both contact the end columns (16), the distance between the two clamping portions (5) is a minimum value.

4. The continuous stamping material transfer system according to claim 3, characterized in that: The control mechanism comprises a first linkage part (17) arranged on the inner side of the second disk body (10); an unlocking plate (18) is vertically arranged at the downstream end of the material transfer track (1); an unlocking column (19) is horizontally arranged on the top of the unlocking plate (18) close to the side of the material transfer track (1); when the guide seat (3) is located at the downstream end of the guide groove (2), the first linkage part (17) is located between the first disk body (9) and the unlocking column (19), and the unlocking column (19) contacts the first linkage part (17); the length of the first elastic member (15) is L2, wherein L2>L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping parts (5).

5. The continuous stamping material transfer system according to claim 4, characterized in that: A second linkage portion (20) is provided on the inner side of the first disk body (9), and a free end of the second linkage portion (20) is located on the outer side of the support plate (6); Also included are: A first vertical seat (21) and a second vertical seat (22) located below the first vertical seat (21), a first vertical rod (23) vertically movably passing through the first vertical seat (21) and the second vertical seat (22), the cross section of the first vertical rod (23) is rectangular, and the outer wall of the first vertical rod (23) is movably attached to the first vertical seat (21) and the second vertical seat (22); a spreading arm (24), the spreading arm (24) being horizontally connected to the top of the first vertical rod (23); when the guide seat (3) is located at the upstream end of the guide groove (2), the free end of the spreading arm (24) abuts against the side of the second linkage portion (20) facing away from the second disk body (10); and the projection of the abutment point between the spreading arm (24) and the second linkage portion (20) in the vertical direction is located on the side of the projection of the support plate (6) in the vertical direction; the length of the first elastic member (15) is L3, wherein L3>L1, and the length of the corresponding workpiece is less than the minimum distance between the two clamping portions (5); A bottom plate body (25), one end of the bottom plate body (25) is hingedly provided with an operating plate (26), the middle part of the free end of the operating plate (26) is provided with an operating groove (27), both inner walls of the two sides of the operating groove (27) are provided with long strip-shaped movable grooves (28), both sides of the bottom of the first vertical rod (23) are horizontally provided with movable parts, and the two movable parts are respectively movably attached to the inner walls of the two movable grooves (28); A first limiting plate (29), the first limiting plate (29) is horizontally arranged on the outer wall of the first vertical rod (23), a second elastic member (30) which is continuously in a compressed state is vertically arranged between the first limiting plate (29) and the second vertical seat (22), and when the first limiting plate (29) contacts the bottom of the first vertical seat (21), the spreading arm (24) and the second linkage part (20) are at the same height, and the spreading arm (24) can be lowered below the second linkage part (20) and the support plate (6) by stepping on the operating plate (26) downwards.

6. The continuous stamping material transfer system according to claim 5, characterized in that: A second vertical rod (31) is also provided vertically and movably passing through the first vertical seat (21) and the second vertical seat (22); the cross section of the second vertical rod (31) is rectangular, and the outer wall of the second vertical rod (31) is movably fitted to the first vertical seat (21) and the second vertical seat (22); a support arm (32) is horizontally provided at the top of the second vertical rod (31); a contour seat (33) is horizontally provided at the free end of the support arm (32); a contour groove (34) for supporting a corresponding workpiece is provided at the top of the contour seat (33); a projection of the contour seat (33) in the vertical direction is located between the projections of the two clamping parts (5) in the vertical direction; A second limiting plate (35) and a third limiting plate (36) are arranged on the outer wall of the second vertical rod (31); the second vertical rod (31) vertically passes through the first limiting plate (29); the second limiting plate (35) is located between the first limiting plate (29) and the second vertical seat (22); the third limiting plate (36) is located below the second vertical seat (22); a third elastic member (37) which is continuously in a compressed state is arranged between the second limiting plate (35) and the second vertical seat (22); the acting force between the second elastic member (30) and the first limiting plate (29) is F1; the acting force between the third elastic member (37) and the second limiting plate (35) is F2, wherein F2>F1; The first limiting plate (29) includes a first state, a second state and a third state; When the first limit plate (29) is in the first state, the first limit plate (29) abuts against the first vertical seat (21), the third limit plate (36) abuts against the second vertical seat (22), the two ends of the workpiece located in the profiling groove (34) are directly opposite to the two clamping parts (5), and the profiling seat (33) is lower than the clamping part (5) or the clamping arm (4) located at the upstream end; When the first limit plate (29) is in the second state, the first limit plate (29) contacts the second limit plate (35), the spreading arm (24) is separated from the second linkage portion (20), and the two clamping portions (5) contact the two ends of the corresponding workpiece; When the first limiting plate (29) is in the third state, the first limiting plate (29) drives the second limiting plate (35) to move downward, and the contour seat (33) is separated from the corresponding workpiece.

7. The continuous stamping material transfer system according to claim 6, characterized in that: A locking seat (38) is horizontally arranged on the side of the second vertical seat (22), a locking groove is horizontally opened in the middle of the locking seat (38), a fourth elastic member (39) which is continuously in a compressed state is horizontally arranged in the locking groove, a cylindrical locking column (40) is horizontally arranged at the free end of the fourth elastic member (39), and the end of the locking column (40) which is away from the fourth elastic member (39) is hemispherical or dome-shaped, and a locking opening (41) for the end of the locking column (40) to be locked in is opened on the side of the second vertical rod (31), and when the second vertical rod (31) moves downward, the locking opening (41) acts on the end of the locking column (40) and causes the locking column (40) to move completely into the locking groove.

8. The material transfer system for continuous stamping according to claim 1, characterized in that: The driving mechanism comprises: A vertical guide rail (42), the guide rail (42) being connected to a frame (44) of a punching machine (43), and a dovetail groove being vertically provided on the inner side of the guide rail (42); A power column (46), the power column (46) is vertically movable and fits in the dovetail groove, a connecting seat (48) connected to an upper die seat (47) of a machine tool is arranged on the top of the power column (46), and a power tooth body (49) is arranged on the inner side of the power column (46); A support seat (50), the support seat (50) is vertically arranged on a lower die seat (51) of a punch press (43), a rotating column (52) is rotatably arranged on the support seat (50), a transmission gear (53) meshing with the power tooth body (49) is arranged at one end of the rotating column (52), and a transmission sprocket (54) is arranged at the other end, the diameter of the transmission sprocket (54) is larger than the diameter of the transmission gear (53), and an auxiliary gear (55) is also horizontally arranged on the support seat (50), and the auxiliary gear (55) meshes with the power tooth body (49); A receiving member (56), the receiving member (56) is L-shaped, and the corner of the receiving member (56) is arc-shaped, the vertical portion of the receiving member (56) is connected to the frame (44), and the horizontal portion is connected to the lower die base (51), a receiving groove (57) is provided through the receiving member (56), and a through opening (58) for the transmission sprocket (54) to movably pass through is provided on the inner side of the corner of the receiving member (56); A first chain (59) and a second chain (60) fixedly connected to an end of the first chain (59), the first chain (59) cooperates with the transmission sprocket (54), the movable range of the first chain (59) is in a vertical plane, the movable range of the second chain (60) is in a horizontal plane, a synchronization rod (61) is vertically arranged at the bottom of the guide seat (3), the free end of the second chain (60) is connected to the synchronization rod (61), and the bottom of the guide groove (2) is provided with a The second chain (60) moves into the matching groove (62), the matching groove (62) is communicated with the accommodating groove (57), the synchronization rod (61) moves through the matching groove (62), the longitudinal section of the matching groove (62) is convex, the second chain (60) can move into the matching groove (62), and the width of the top of the matching groove (62) is smaller than the width of the second chain (60), and the contact side of the guide seat (3) and the guide groove (2) are both rotatably provided with a drag reduction ball (63).

9. A method of using the continuous stamping material transfer system according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, when the punching machine (43) completes the punching, the upper die seat (47) drives the upper die to rise and separate from the lower die, and at this time the workpiece is located on the lower die; S2, a worker downstream of the punch press (43) manually removes the workpiece from the lower die and clamps the two ends of the workpiece with two clamping parts (5); S3, a worker upstream of the punch press (43) manually places the raw material or the workpiece of the previous punch press (43) onto the lower die; S4, the upper die seat (47) moves downward, the driving mechanism drives the guide seat (3) to move along the guide groove (2), and sends the workpiece to the downstream end of the guide groove (2), wherein the downstream end of the transfer track (1) is located at the lower die seat (51) of the downstream punching machine (43), or the lower part of the downstream end of the transfer track (1) is a conveyor belt for sending out the finished product; S5, the upper die seat (47) is raised, and the driving mechanism drives the empty guide seat (3) to move to the upstream end of the guide groove (2), and returns to S1; The length of the clamping arm (4) and the shape of the clamping portion (5) at each punch are adapted to the workpiece at the punch.

10. An automobile parts stamping device, characterized in that: It comprises a plurality of punching machines (43) arranged in sequence and a material transfer system for continuous stamping as described in any one of claims 1 to 8, wherein a material transfer track (1) is provided between each of two adjacent punching machines (43), and the punching machine (43) comprises a lower die seat (51), and the upstream end of the material transfer track (1) is connected to the top of the previous lower die seat (51), and the downstream end is connected to the top of the next lower die seat (51).

Images