A stamping and bending progressive die

Abstract

The utility model provides a stamping bending progressive die, including setting the lower die seat of pedestal, the upper die seat of sliding setting on the lower die seat, with the material belt of material belt delivery device delivery of the lower die seat through the material belt, still include the forming mechanism, the bending mechanism, the punching mechanism and the separation mechanism that set gradually between the upper die seat and the lower die seat, be provided with the fixed distance subassembly for detecting board pass on the lower die seat, the upper die seat is connected with the punch press, and the fixed distance subassembly is electrically connected with material belt delivery device and punch press through the controller respectively. The utility model provides a stamping bending progressive die, through setting the forming mechanism, the bending mechanism, the punching mechanism and the separation mechanism between the upper die seat and the lower die seat, complete the forming, the bending, the punching and the separation of work piece on material belt in turn, use a set of mould to complete the processing of U shape work piece, improve the production efficiency of work piece, and the positioning hole is punched out on the material belt through punch two, and the machining precision of work piece is higher.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a progressive die for stamping and bending. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping molds). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts. It is a key piece of equipment in the field of sheet metal processing and can achieve continuous stamping production through continuous feeding.

[0003] However, existing stamping dies are limited in handling complex bending parts (such as those shown in the attached figure). Figure 8 When processing a U-shaped workpiece with side holes (as shown in the figure), multiple independent molds are usually required to complete the workpiece forming, bending, punching and separation in steps. The workpiece needs to be repeatedly positioned and transferred, resulting in low production efficiency. This solution addresses the above technical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a progressive stamping and bending die. Through a forming mechanism, a bending mechanism, a punching mechanism, and a separating mechanism sequentially arranged between the upper and lower die bases, the forming, bending, punching, and separating of the workpiece on the strip are completed in sequence. A single die set can complete the processing of U-shaped workpieces, improving production efficiency. The punching of positioning holes on the strip by the second punch ensures high workpiece processing accuracy. This progressive die, composed of multiple stations, sequentially completes different processing steps.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a progressive die for stamping and bending, comprising a lower die base disposed on a base, an upper die base slidably disposed on the lower die base, and a stripper belt connected to the upper die base. A stripper belt is conveyed on the lower die base by a stripper belt conveyor. The die also includes a forming mechanism, a bending mechanism, a punching mechanism, and a separating mechanism sequentially disposed between the upper die base and the lower die base. A spacer assembly for detecting the passage of sheet metal is disposed on the lower die base. A stamping machine is connected to the upper die base. The spacer assembly is electrically connected to the stripper belt conveyor and the stamping machine respectively through a controller.

[0006] The forming mechanism includes a template one disposed on the lower mold base and a punch assembly disposed on the upper mold base. The template one is provided with a groove, a limiting hole, a punching hole one, and a punching hole two in sequence. The punch assembly passes through the stripping belt and presses against the strip on the template one. The punch assembly includes a punch one for punching the strip out of the groove, a punch two for punching the strip out of the positioning hole, a punch three for punching a notch on one side of the strip, and a punch four for punching a notch on the other side of the strip. The punch one corresponds to the groove, the punch two corresponds to the limiting hole, the punch three corresponds to the punching hole one, and the punch four corresponds to the punching hole two.

[0007] The bending mechanism includes template 2 and template 3 arranged sequentially on the lower mold base, and pressure block 1 and pressure block 2 arranged sequentially on the upper mold. Pressure block 1 is used to press the strip on template 2 into a fold line, and pressure block 2 presses the strip on template 3 into a U-shape.

[0008] The punching mechanism includes a template four disposed on the lower die base, two support blocks slidably disposed on both sides of the template four, and a pressure block three for driving the support blocks to slide toward the template four. The pressure block three is disposed on the upper die base. A plurality of punches are disposed on the side of the support block near the template four. The template four is provided with receiving holes corresponding to the punches. The punches are used to punch side holes on both sides of the strip material on the template four at the same time.

[0009] A reset spring is provided on the mold base. One end of the reset spring is connected to the mold base, and the other end of the reset spring is connected to the support block.

[0010] The two bearing blocks are provided with a wedge-shaped surface one on the side away from the template four, and the inner side of the pressure block three is provided with a wedge-shaped surface two corresponding to the wedge-shaped surface one, and the wedge-shaped surface two is in separable contact with the wedge-shaped surface one.

[0011] The separation mechanism includes a template five disposed on the lower mold base and a punch head disposed on the upper mold base for cutting off the strip material. The template five is provided with a discharge hole for accommodating the punch head.

[0012] The distance fixing component includes a photoelectric sensor disposed on the lower mold base, a connecting block slidably disposed on the lower mold base along a direction perpendicular to the length of the strip, a positioning block disposed on the lower mold base, the connecting block slidably disposed within the positioning block, and a second return spring disposed between the connecting block and the lower mold base, the two ends of the second return spring being connected to the connecting block and the lower mold base respectively.

[0013] One end of the connecting block is provided with a baffle, which is detachably embedded in the notch on the material belt, and the other end of the connecting block is connected to the photoelectric sensor.

[0014] A leveling component is provided between the bending mechanism and the forming mechanism. The leveling component includes a support platform on the lower die base and a pressure block four on the upper die base. The pressure block four passes through the stripping belt and contacts the strip on the support platform.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) By sequentially setting the forming mechanism, bending mechanism, punching mechanism and separating mechanism between the upper mold base and the lower mold base, the forming, bending, punching and separating of the workpiece on the strip are completed in sequence. The processing of U-shaped workpiece can be completed with one set of molds, which improves the production efficiency of the workpiece. The positioning hole is punched out on the strip by the second punch, which makes the processing accuracy of the workpiece higher.

[0017] (2) The baffle of the fixed distance component can be separably embedded in the notch of the material belt, thereby separating and connecting the connecting block with the photoelectric sensor, thereby controlling the operation of the material belt conveying mechanism and the stamping machine. By setting the fixed distance component, the conveying interval of the material belt is the distance between two notches on the same side, thereby achieving the purpose of conveying the material belt at a fixed distance and further improving the processing accuracy of the workpiece.

[0018] (3) By having the two wedge surfaces of the two pressure blocks three in the punching mechanism contact the two wedge surfaces of the two bearing blocks respectively, the bearing blocks are driven to slide along the lower die base in opposite directions, so that the side holes are punched out on both sides of the workpiece at the same time, the punching efficiency of the workpiece is higher, and the processing efficiency of the workpiece is further improved. Attached Figure Description

[0019] Figure 1 This is an exploded view of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the molding mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the punch assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lower mold base of this utility model;

[0023] Figure 5 This is a schematic diagram of the bending structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the punching mechanism of this utility model;

[0025] Figure 7 This is a schematic diagram of the upper mold base of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the U-shaped workpiece of this utility model;

[0027] Figure 9 This is a schematic diagram of the distance fixing component of this utility model.

[0028] In the diagram: 1. Lower die base; 2. Upper die base; 3. Stripper strip; 4. Strip material; 41. Notch; 42. Positioning hole; 43. Side hole; 44. Side groove; 45. Connecting part; 5. Forming mechanism; 51. Template 1; 511. Groove; 512. Limiting hole; 513. Punch hole 1; 514. Punch hole 2; 52. Punch assembly; 521. Punch 1; 522. Punch 2; 523. Punch 3; 524. Punch 4; 6. Bending mechanism; 61. Template 2; 62. Template 3; 63. Pressure block 1; 64. Pressure... 7. Punching mechanism; 71. Template 4; 711. Receiving hole; 72. Bearing block; 721. Punch; 722. Wedge surface 1; 73. Pressure block 3; 731. Wedge surface 2; 74. Return spring 1; 8. Separation mechanism; 81. Template 5; 811. Discharge hole; 82. Punching head; 9. Distance assembly; 91. Photoelectric sensor; 92. Connecting block; 93. Return spring 2; 94. Stop; 941. Guide slope; 95. Positioning block; 10. Leveling assembly; 101. Support platform; 102. Pressure block 4. Detailed Implementation

[0029] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0030] See Figures 1-9 A progressive stamping and bending die includes a lower die base 1 mounted on a base, an upper die base 2 slidably mounted on the lower die base 1, and a stripper belt 3 connected to the upper die base 2. A stripper belt 4 is conveyed on the lower die base 1 by a stripper belt conveyor. The die also includes a forming mechanism 5, a bending mechanism 6, a punching mechanism 7, and a separating mechanism 8 sequentially arranged between the upper die base 2 and the lower die base 1. A spacer assembly 9 for detecting the passage of sheet metal is provided on the lower die base 1. A stamping machine is connected to the upper die base 2. The spacer assembly 9 is electrically connected to the stripper belt conveyor and the stamping machine through a controller. The stripper belt conveyor and the stamping machine are external system devices and are implemented using existing technology, and will not be described in detail here.

[0031] The forming mechanism 5 includes a template 51 set on the lower mold base 1 and a punch assembly 52 set on the upper mold base 2. The template 51 is provided with a groove 511, a limiting hole 512, a punching hole 513 and a punching hole 514 in sequence. The punch assembly 52 passes through the stripping belt 3 and presses against the strip 4 on the template 51. The punch assembly 52 includes a punch 521 for punching the strip 4 out of the groove 511, a punch 522 for punching the strip 4 out of the positioning hole 42, a punch 523 for punching a notch 41 on one side of the strip 4, and a punch 524 for punching a notch 41 on the other side of the strip 4. The punch 521 corresponds to the groove 511, the punch 522 corresponds to the limiting hole 512, the punch 523 corresponds to the punching hole 513, and the punch 524 corresponds to the punching hole 514.

[0032] The bending mechanism 6 includes a template 2 61 and a template 3 62 arranged sequentially on the lower die base 1, and a pressure block 1 63 and a pressure block 2 64 arranged sequentially on the upper die. The pressure block 1 63 is used to press the strip 4 on the template 2 61 into a fold line, and the pressure block 2 64 presses the strip 4 on the template 3 62 into a U-shape.

[0033] The punching mechanism 7 includes a template 71 set on the lower die base 1, two support blocks 72 slidably arranged on both sides of the template 71, and a pressure block 73 for driving the support blocks 72 to slide towards the template 71. The pressure block 73 is set on the upper die base 2. Several punches 721 are provided on the side of the support block 72 near the template 71. The template 71 is provided with receiving holes 711 corresponding to the punches 721. The punches 721 are used to punch side holes 43 on both sides of the strip 4 on the template 71 at the same time.

[0034] A reset spring 74 is provided on the mold base. One end of the reset spring 74 is connected to the mold base, and the other end of the reset spring 74 is connected to the bearing block 72.

[0035] Two bearing blocks 72 are provided with a wedge-shaped surface 722 on the side away from the template 71, and a wedge-shaped surface 731 corresponding to the wedge-shaped surface 722 is provided on the inner side of the pressure block 73. The wedge-shaped surface 731 and the wedge-shaped surface 722 are in separable contact.

[0036] The separation mechanism 8 includes a template 81 disposed on the lower mold base 1 and a punch head 82 disposed on the upper mold base 2 for cutting off the material strip 4. The template 81 is provided with a discharge hole 811 for accommodating the punch head 82.

[0037] The distance fixing component 9 includes a photoelectric sensor 91 disposed on the lower mold base 1, a connecting block 92 slidably disposed on the lower mold base 1 along the length direction perpendicular to the material strip 4, a positioning block 95 disposed on the lower mold base 1, the connecting block 92 slidably disposed in the positioning block 95, and a second reset spring 93 disposed between the connecting block 92 and the lower mold base 1, with the two ends of the second reset spring 93 connected to the connecting block 92 and the lower mold base 1 respectively.

[0038] One end of the connecting block 92 is provided with a baffle 94, which is detachably embedded in the notch 41 on the material belt 4. The other end of the connecting block 92 is connected to the photoelectric sensor 91.

[0039] A leveling component 10 is provided between the bending mechanism 6 and the forming mechanism 5. The leveling component 10 includes a support platform 101 provided on the lower mold base 1 and a pressure block 4 102 provided on the upper mold base 2. The pressure block 4 102 passes through the stripping belt 3 and contacts the material belt 4 on the support platform 101.

[0040] The specific working process of this utility model:

[0041] In use, the strip 4 is conveyed by the external system's strip conveyor to the space between the stripping strip 3 and the forming mechanism 5 on the lower die base 1. The press drives the upper die base 2 to descend, punching a recess in the strip 4 through punch one 521. Then, the upper die base 2 rises, and the strip 4 is conveyed to punch two 522 and then stops. The descent of the upper die base 2 causes punch one 521 and punch two 522 to contact the strip 4. The strip 4 is punched out with a second recess by punch one 521, and simultaneously punched out with positioning hole 42 by punch two 522. Then, the upper die base 2 is raised, and the strip 4 is conveyed to the position of positioning hole 42 near punch three 523 and then stops. The upper die base 2 descends, and punch three 523 punches a notch 41 on one side of the strip 4. Then, the upper die base 2 rises. See below. Figure 9The side of the baffle 94 is provided with a guide ramp 941. When the material belt 4 is conveyed to the notch 41 and contacts the baffle 94 of the spacing assembly 9, under the guiding and limiting action of the positioning block 95, the baffle 94 slides along the positioning block 95 until the guide ramp 941 is embedded in the notch 41 to a certain depth. At this time, the connecting block 92 separates from the photoelectric sensor 91, and the photoelectric sensor 91 transmits the signal to the controller. The controller controls the material belt conveyor to stop and simultaneously controls the punch to descend. At this time, the notches 41 are punched out on both sides of the material belt 4 by punch three 523 and punch four 524. At this time, the punch assembly 52 completes the punching operation of the material belt 4. After the stamping is completed, the stamping machine drives the upper die base 2 to rise, and the material belt conveyor drives the material belt 4 forward. The notch 41 of the material belt 4 presses against the guide slope 941 of the stop 94 to overcome the elastic force of the return spring 93, and drives the stop 94 to slide along the positioning block 95 until the stop 94 disengages from the notch 41. The connecting block 92 makes contact with the photoelectric sensor 91. When the material belt 4 is conveyed to another notch 41 and embedded in the stop 94, the controller controls the material belt conveyor to stop and controls the stamping machine to drive the upper die base 2 to descend. At this time, the conveying interval of the material belt 4 is the distance between the two notches 41 on the same side, thereby achieving the purpose of conveying the material belt 4 at a fixed distance.

[0042] Subsequently, under the fixed-distance conveying action of the fixed-distance component 9, the material belt 4 enters the leveling component 10. The pressure block four 102 of the leveling component 10 presses the material belt 4 on the support platform 101, making the material belt 4 flatter. Then, the leveled material belt 4 is conveyed to the bending mechanism 6, where it is first pressed by the pressure block one 63 and the template two 61 of the bending mechanism 6 to form a folded line with a bending surface (see Figure 5 At the same time, two side grooves 44 are punched out, and then the material strip 4 is pressed into a U shape by the pressure block 2 64 and the template 3 62, thereby completing the bending of the material strip 4.

[0043] The U-shaped strip 4 is then conveyed to the punching mechanism 7. When the lower die base 1 descends, the lower die base 1 drives the pressure block 3 73 to descend. The wedge-shaped surface 2 731 of the pressure block 3 73 presses against the wedge-shaped surface 1 722 of the support block 72, so that the support block 72 overcomes the elastic force of the return spring 1 74 and slides along the direction of the strip 4 on the lower die base 1 near the template 4 71 until the punch 721 on the support block 72, in conjunction with the receiving hole 711, under the shearing and punching action on the strip 4, punches two side holes 43 on both sides of the strip 4, completing the punching of the side holes 43 of the strip 4. Then the upper die base 2 drives the pressure block 3 73 to rise, and the support block 72 is reset under the action of the return spring 1 74. At this time, the strip 4 forms a U-shaped workpiece connected to each other by the connecting part 45, and the positioning hole 42 is set on the connecting part 45.

[0044] After the side hole 43 is punched, the strip 4 enters the template 81 of the separation mechanism 8. The punch head 82 of the separation mechanism 8 descends. Under the shearing action between the discharge hole 811 on the template 81 and the punch head 82, the connecting part 45 between the two U-shaped workpieces is cut off, and finally the separation between the two U-shaped workpieces is completed. At the same time, the connecting part 45 is discharged from the discharge hole 811, thus completing the processing of the entire U-shaped workpiece.

[0045] The forming mechanism 5, bending mechanism 6, punching mechanism 7 and separating mechanism 8 are sequentially set between the upper mold base 2 and the lower mold base 1 to complete the workpiece forming, bending, punching and separating of the workpiece on the strip 4. The processing of U-shaped workpieces can be completed with one set of molds, which improves the production efficiency of workpieces. The positioning hole 42 is punched out on the strip 4 by the punch 2 522, so that the processing accuracy of the workpiece is high.

[0046] The baffle 94 of the distance-fixing component 9 can be separably embedded into the notch 41 of the material belt 4, thereby separating and connecting the connecting block 92 with the photoelectric sensor 91, thereby controlling the operation of the material belt 4 conveying mechanism and the stamping machine. With the setting of the distance-fixing component 9, the conveying interval of the material belt 4 is the distance between two notches 41 on the same side, thereby achieving the purpose of conveying the material belt 4 at a fixed distance and further improving the processing accuracy of the workpiece.

[0047] The wedge-shaped surfaces 731 of the two pressure blocks 73 in the punching mechanism 7 contact the wedge-shaped surfaces 722 on the two bearing blocks 72 respectively, driving the bearing blocks 72 to slide in opposite directions along the lower die base 1, so that the side holes 43 are punched out on both sides of the workpiece at the same time, the punching efficiency of the workpiece is higher, and the processing efficiency of the workpiece is further improved.

[0048] Technical features not described in detail in this solution are based on conventional operations and general understanding of those skilled in the art, and are therefore not elaborated upon here. Technical features not described in this utility model can be implemented using existing technology, and will not be repeated here. Of course, the above description is not intended to limit this utility model, nor is it limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. A stamping and bending progressive die comprising a lower die seat (1) arranged on a base, an upper die seat (2) slidingly arranged on said lower die seat (1), a stripper belt (3) connected to said upper die seat (2), said lower die seat (1) being provided with a belt (4) conveyed by a belt conveying device, characterized in that, It also includes a forming mechanism (5), a bending mechanism (6), a punching mechanism (7) and a separating mechanism (8) arranged sequentially between the upper die base (2) and the lower die base (1). The lower die base (1) is provided with a distance-fixing component (9) for detecting the passage of the sheet metal. The upper die base (2) is connected to a stamping machine. The distance-fixing component (9) is electrically connected to the material conveying device and the stamping machine through a controller.

2. The progressive stamping and bending die according to claim 1, characterized in that, The forming mechanism (5) includes a template (51) disposed on the lower mold base (1) and a punch assembly (52) disposed on the upper mold base (2). The template (51) is provided with a groove (511), a limiting hole (512), a punching hole (513) and a punching hole (514) in sequence. The punch assembly (52) passes through the stripping strip (3) and presses against the strip (4) on the template (51). The punch assembly (52) includes a punch (521) for punching the strip (4) out of the groove (511). Punch 2 (522) for punching the strip (4) out of the positioning hole (42), punch 3 (523) for punching a notch (41) on one side of the strip (4), punch 4 (524) for punching a notch (41) on the other side of the strip (4), punch 1 (521) corresponds to the groove (511), punch 2 (522) corresponds to the limiting hole (512), punch 3 (523) corresponds to the punching hole 1 (513), and punch 4 (524) corresponds to the punching hole 2 (514).

3. The progressive stamping and bending die according to claim 1, characterized in that, The bending mechanism (6) includes a template two (61) and a template three (62) arranged sequentially on the lower mold base (1), and a pressure block one (63) and a pressure block two (64) arranged sequentially on the upper mold. The pressure block one (63) is used to press the strip (4) on the template two (61) into a fold line, and the pressure block two (64) presses the strip (4) on the template three (62) into a U-shape.

4. The progressive stamping and bending die according to claim 1, characterized in that, The punching mechanism (7) includes a template four (71) disposed on the lower die base (1), two support blocks (72) slidably disposed on both sides of the template four (71), and a pressure block three (73) for driving the support blocks (72) to slide towards the template four (71). The pressure block three (73) is disposed on the upper die base (2). A plurality of punches (721) are disposed on the side of the support block (72) near the template four (71). The template four (71) is provided with receiving holes (711) corresponding to the punches (721). The punches (721) are used to punch side holes (43) out of both sides of the strip (4) on the template four (71) at the same time.

5. The progressive stamping and bending die according to claim 4, characterized in that, A reset spring (74) is provided on the mold base. One end of the reset spring (74) is connected to the mold base, and the other end of the reset spring (74) is connected to the bearing block (72).

6. The progressive die for stamping and bending according to claim 5, characterized in that, The two bearing blocks (72) are provided with a wedge-shaped surface one (722) on the side away from the template four (71), and the inner side of the pressure block three (73) is provided with a wedge-shaped surface two (731) corresponding to the wedge-shaped surface one (722), and the wedge-shaped surface two (731) and the wedge-shaped surface one (722) are in separable contact.

7. The progressive die for stamping and bending according to claim 1, characterized in that, The separation mechanism (8) includes a template five (81) disposed on the lower mold base (1) and a punch head (82) disposed on the upper mold base (2) for cutting off the strip (4). The template five (81) is provided with a discharge hole (811) for accommodating the punch head (82).

8. The progressive stamping and bending die according to claim 2, characterized in that, The distance fixing component (9) includes a photoelectric sensor (91) disposed on the lower mold base (1), a connecting block (92) slidably disposed on the lower mold base (1) along the length direction perpendicular to the material strip (4), a positioning block (95) disposed on the lower mold base (1), the connecting block (92) slidably disposed in the positioning block (95), and a second reset spring (93) disposed between the connecting block (92) and the lower mold base (1), the two ends of the second reset spring (93) being connected to the connecting block (92) and the lower mold base (1) respectively; One end of the connecting block (92) is provided with a baffle (94), which is detachably embedded in the notch (41) on the material belt (4), and the other end of the connecting block (92) is connected to the photoelectric sensor (91).

9. The progressive stamping and bending die according to claim 1, characterized in that, A leveling component (10) is provided between the bending mechanism (6) and the forming mechanism (5). The leveling component (10) includes a support platform (101) provided on the lower mold base (1) and a pressure block four (102) provided on the upper mold base (2). The pressure block four (102) passes through the stripping belt (3) and contacts the material belt (4) on the support platform (101).

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