Punching equipment

Abstract

The utility model relates to punching equipment, in particular to punching equipment which comprises an upper die mechanism and a lower die mechanism which are arranged at intervals in the vertical direction, and the upper die mechanism can be close to or away from the lower die mechanism for punching. The upper die mechanism comprises an upper die base and an ejector rod, a cutter hole is formed in the upper die base and extends in the vertical direction, and the cross section of the cutter hole is square. The ejector rod is arranged in the cutter hole so as to slide in the cutter hole in the vertical direction. The lower die mechanism comprises a lower die base, a punching rod and a lower stripping plate, the lower stripping plate is movably connected with the lower die base, the moving direction of the lower stripping plate is the vertical direction, a station groove and a sliding groove are formed in the lower stripping plate, the station groove is used for containing a workpiece, and the station groove is formed below the cutter hole; the sliding groove right faces the cutter hole and penetrates through the lower stripping plate, the upper side of the sliding groove is communicated with the station groove, the lower end of the punching rod is fixed to the lower die base, the upper end of the punching rod extends into the sliding groove, and the cross section of the punching rod is the same as that of the cutter hole. The die-cutting device performs mechanical die-cutting and is high in die-cutting quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping equipment, and particularly relates to a punching and cutting device. Background Art

[0002] Refer to Figure 9 , workpiece one 100 includes a coaxial circular plate 102 and a cylinder 101, wherein the cylinder 101 is fixed on one side surface of the circular plate 102. The diameter of the circular plate 102 is generally several centimeters. Currently, it is necessary to cut workpiece one 100 into workpiece two 200, that is, it is necessary to cut the circular plate 102 into a square plate 201 with rounded corners at the four outer corners.

[0003] Due to the small overall size of workpiece one and workpiece two, there are problems of great processing difficulty and poor processing quality when processed manually. Summary of the Invention

[0004] The technical problem to be solved by the utility model is: to provide a punching and cutting device to solve the problem of great processing difficulty in processing workpiece one into workpiece two.

[0005] To solve the above technical problem, an embodiment of the utility model provides a punching and cutting device, which includes an upper die mechanism and a lower die mechanism arranged below the upper die mechanism;

[0006] The upper die mechanism includes an upper die base and a ejector rod. A knife hole is arranged on the upper die base. The knife hole extends in the up and down direction, and the cross-section of the knife hole is square; the ejector rod is arranged in the knife hole to be able to slide in the knife hole in the up and down direction;

[0007] The lower die mechanism includes a lower die base, a punching rod and a lower stripping plate. The lower stripping plate is movably connected to the lower die base. The moving direction of the lower stripping plate is the up and down direction. A working position groove and a sliding groove are arranged on the lower stripping plate. The working position groove is used for placing a workpiece, and the working position groove is arranged below the knife hole;

[0008] The sliding groove is opposite to the knife hole. The sliding groove penetrates through the lower stripping plate in the up and down direction. The upper side of the sliding groove communicates with the working position groove. The lower end of the punching rod is fixed on the lower die base, and the upper end of the punching rod extends into the sliding groove. The cross-section of the punching rod is the same as the cross-section of the knife hole;

[0009] In the first preset state, the upper die mechanism and the lower die mechanism are arranged at intervals, the lower stripping plate and the lower die base are arranged at intervals, the punching rod penetrates through the sliding groove, and the upper end surface of the punching rod is flush with the bottom wall of the working position groove;

[0010] In the second preset state, the upper die base fits against the lower stripper plate, the lower stripper plate fits against the lower die base, and the upper end of the punch rod protrudes from the lower stripper plate and inserts into the knife hole to punch the workpiece located in the station groove.

[0011] Optionally, a receiving hole is provided on the lower die base, the upper end of the receiving hole is open, and the lower end is closed;

[0012] The lower die mechanism further includes a stripping spring that expands and contracts in the vertical direction; the stripping spring is disposed inside the receiving hole, the upper end of the stripping spring is connected to the lower stripper plate, and the lower end of the stripping spring is connected to the bottom wall of the receiving hole.

[0013] Optionally, the upper die base includes a telescopic power member, a tool, an upper die holder, an upper backing plate, an upper clamping plate, and an upper template. The upper die holder, the upper backing plate, the upper clamping plate, and the upper template are stacked from top to bottom. A receiving groove is provided on the upper die holder, the telescopic power member is disposed in the receiving groove, the ejector rod is fixed on the output rod of the telescopic power member, a tool seat hole is provided on the upper template, and the tool is installed in the tool seat hole;

[0014] A first sliding hole penetrating in the vertical direction is provided on the upper backing plate, a second sliding hole penetrating in the vertical direction is provided on the upper clamping plate, both ends of the first sliding hole communicate with the receiving groove and the second sliding hole respectively, a third sliding hole penetrating in the vertical direction is provided on the tool, the ejector rod passes through the first sliding hole and the second sliding hole, the third sliding hole forms the knife hole, and the telescopic power member drives the ejector rod to slide in the knife hole in the vertical direction.

[0015] Optionally, the lower die base includes a lower die holder, a lower backing plate, and a lower clamping plate stacked from bottom to top. A first accommodating hole is provided on the lower die holder, a second accommodating hole penetrating in the vertical direction is provided on the lower backing plate, a third accommodating hole penetrating in the vertical direction is provided on the lower clamping plate, and the first accommodating hole, the second accommodating hole, and the third accommodating hole form the receiving hole;

[0016] A sliding groove is provided on the lower clamping plate, the sliding groove faces the sliding groove, the lower end face of the punch rod is fixed on the lower backing plate, and the punch rod passes through the sliding groove and extends into the sliding groove.

[0017] Optionally, air holes and flow grooves are provided on the lower stripper plate. The air holes penetrate the lower stripper plate in the vertical direction. An air passage is provided on the lower die base, the air passage penetrates the lower die base in the vertical direction, the air passage communicates with the air holes, one end of the flow groove communicates with the air holes, and the other end of the flow groove communicates with the station groove;

[0018] The lower die mechanism further includes an air nozzle and an air pipe. The air pipe is connected to the air nozzle and is disposed in the air passage. The air nozzle is disposed in the air hole or the flow groove, and the air nozzle jets air toward the working station groove.

[0019] Optionally, the lower die mechanism further includes a conveying plate provided with a conveying groove. The conveying groove includes a first groove and a second groove. The width of the first groove is smaller than that of the second groove. The first groove is connected to the second groove, so that the overall cross-section formed by the first groove and the second groove is an inverted T shape. The length of the first groove is the same as that of the second groove. One end in the length direction of the first groove is connected to the working station groove, and the other end in the length direction of the first groove extends to the edge of the lower stripping plate. One end in the length direction of the second groove is connected to the working station groove, and the other end in the length direction of the second groove extends to the edge of the lower stripping plate. The first groove is used for conveying the cylinder of the workpiece, and the second groove is used for conveying the circular plate of the workpiece.

[0020] Optionally, it further includes a feeding mechanism, which includes a feeder and a conveying channel. The feeder is used for storing workpieces and conveying the workpieces to the conveying channel. One end of the conveying channel is connected to the conveying groove, and the other end of the conveying channel is connected to the feeder.

[0021] Optionally, it further includes a discharging mechanism, which includes a receiving groove and a reciprocating assembly. The receiving groove is installed on the reciprocating assembly, and the reciprocating assembly is used to drive the receiving groove to approach or move away from directly below the tool hole.

[0022] Optionally, the reciprocating assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a fifth connecting rod. One end of the first connecting rod, one end of the second connecting rod, and one end of the third connecting rod are rotatably connected through a first pivot shaft. The other end of the second connecting rod is rotatably connected to the fourth connecting rod through a second pivot shaft. The end of the fourth connecting rod far from the second connecting rod is rotatably connected to the lower die base through a third pivot shaft;

[0023] One end of the third connecting rod is connected to the fifth connecting rod through a fourth pivot shaft. The end of the fifth connecting rod far from the third connecting rod is rotatably connected to the upper die mechanism through a fifth pivot shaft. The middle parts of the fourth connecting rod and the fifth connecting rod are rotatably connected through a sixth pivot shaft;

[0024] A limiting groove is provided along the length direction of the first connecting rod, and the sixth pivot shaft slides in the limiting groove. The first connecting rod is parallel to the surface of the lower stripping plate, and the second connecting rod and the third connecting rod are symmetric about the first connecting rod.

[0025] Optionally, the bottom wall of the material receiving groove is inclined so that the workpiece slides down from top to bottom along the bottom wall of the material receiving groove, and the lower end of the material receiving groove is open for discharging the workpiece from the lower end.

[0026] According to the punching device of the embodiment of the present invention, the upper die mechanism moves downward to close the die (close the mold), and the cylinder of the workpiece 100 gradually inserts into the round hole. During this process, the lower stripping plate is driven by the upper die mechanism to start moving downward, and the punching rod gradually protrudes upward from the chute and out of the lower stripping plate until the punching rod inserts into the knife hole. During the upward movement of the punching rod, since the plate surface of the round plate of the workpiece 100 is larger than the knife hole, a part of the workpiece 100 is punched into the knife hole by the punching rod, and this part forms the workpiece 200, while the other part of the workpiece 100 that is not brought into the knife hole by the punching rod still remains in the working station groove, forming waste. The automated processing has good processing quality and reduces the processing difficulty. Description of the Drawings

[0027] Figure 1 It is a front view schematic diagram of the overall punching device provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall punching device provided by an embodiment of the present invention;

[0029] Figure 3 It is a top view schematic diagram of the punching device provided by an embodiment of the present invention;

[0030] Figure 4 It is a three-dimensional schematic diagram of the punching device provided by an embodiment of the present invention;

[0031] Figure 5 It is a surface schematic diagram of the lower stripping plate of the punching device provided by an embodiment of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the conveying plate of the punching device provided by an embodiment of the present invention;

[0033] Figure 7 It is an overall schematic diagram of the upper die mechanism of the punching device provided by an embodiment of the present invention;

[0034] Figure 8 It is an exploded schematic diagram of the upper die mechanism of the punching device provided by an embodiment of the present invention;

[0035] Figure 9 It is a background art diagram.

[0036] The reference numerals in the specification are as follows: 100, workpiece one, 101, cylinder; 102, round plate; 200, workpiece two; 201, square plate;

[0037] 11. Upper die base; 12. Upper backing plate; 13. Upper clamping plate; 14. Upper template; 141. Tool holder hole; 21. Lower die base; 22. Lower backing plate; 23. Lower clamping plate; 24. Lower stripper plate; 241. Station groove; 242. Flow groove; 25. Stripping spring; 3. Tool; 31. Tool hole; 41. Ejector rod; 42. Telescopic power member; 51. Punch rod; 52. Air nozzle; 53. Air pipe; 61. First connecting rod; 611. Limit groove; 62. Second connecting rod; 63. Third connecting rod; 64. Fourth connecting rod; 65. Fifth connecting rod; 66. Material receiving groove; 71. First pivot; 72. Second pivot; 73. Third pivot; 74. Fourth pivot; 75. Fifth pivot; 76. Sixth pivot; 8. Conveyor plate; 81. Conveyor groove; 811. First groove; 812. Second groove. Detailed implementation manner

[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0039] As Figures 1 to 4 shown, an embodiment of the present utility model provides a punching device, including an upper die mechanism and a lower die mechanism arranged at intervals in the up-down direction. The upper die mechanism can approach or move away from the lower die mechanism for punching. Among them, the upper die mechanism includes an upper die base and an ejector rod 41. A tool hole 31 is provided on the upper die base. The tool hole 31 extends in the up-down direction, and the cross-section of the tool hole 31 is square; the ejector rod 41 is arranged in the tool hole 31 to be able to slide in the tool hole 31 in the up-down direction.

[0040] The lower die mechanism includes a lower die base, a punch rod 51, and a lower stripper plate 24. The lower stripper plate 24 is movably connected to the lower die base. The moving direction of the lower stripper plate 24 is the up-down direction. A station groove and a sliding groove are provided on the lower stripper plate 24. The station groove is used to place the workpiece, and the station groove is arranged below the tool hole 31; the sliding groove is directly opposite to the tool hole 31, the sliding groove penetrates through the lower stripper plate 24, the upper side of the sliding groove communicates with the station groove, the lower end of the punch rod 51 is fixed on the lower die base, and the upper end of the punch rod 51 extends into the sliding groove. The cross-section of the punch rod 51 is the same as the cross-section of the tool hole 31. In the first preset state, the upper die mechanism and the lower die mechanism are arranged at intervals, the lower stripper plate 24 and the lower die base are arranged at intervals, the punch rod 51 passes through the sliding groove, and the upper end surface of the punch rod 51 is flush with the bottom wall of the station groove 241;

[0041] In the second preset state, the upper die base abuts against the lower stripper plate 24, the lower stripper plate 24 abuts against the lower die base, the upper end of the punch rod 51 protrudes from the lower stripper plate 24 and is inserted into the tool hole 31 to punch the workpiece located in the station groove. Among them, the first preset state is the open die state, and the second preset state is the closed die state or the so-called mold closing state.

[0042] In this embodiment, when not stamping, the lower stripper plate 24 and the lower die base are spaced apart in the up-and-down direction, so that the bottom wall of the station groove is flush with the bottom wall of the punch rod 51. The station groove is provided directly below the tool hole 31. First, the first workpiece 100 is placed in the station groove, so that the cylinder 101 of the first workpiece 100 faces the tool hole 31. The upper die mechanism moves downward to close the die (clamp the die). The cylinder 101 of the first workpiece 100 gradually inserts into the round hole. During this process, the lower stripper plate 24 is driven by the upper die mechanism to start moving downward, and the punch rod 51 gradually protrudes upward from the chute and projects above the lower stripper plate 24 until the punch rod 51 inserts into the tool hole 31. During the upward movement of the punch rod 51, since the plate surface of the round plate 102 of the first workpiece 100 is larger than the tool hole 31, a part of the first workpiece 100 is punched into the tool hole 31 by the punch rod 51, and this part forms the second workpiece 200, while the other part of the first workpiece 100 that is not carried into the tool hole 31 by the punch rod 51 still remains in the station groove and forms waste material.

[0043] In this embodiment, a receiving hole is provided on the lower die base, the upper end of the receiving hole is open, and its lower end is closed. The lower die mechanism further includes a stripping spring 25, and the stripping spring 25 expands and contracts in the up-and-down direction; the stripping spring 25 is built into the receiving hole, the upper end of the stripping spring 25 is connected to the lower stripper plate 24, and the lower end of the stripping spring 25 is connected to the bottom wall of the receiving hole.

[0044] As described above, when the punch rod 51 completes the punching operation, the upper die mechanism moves upward, so that the upper die mechanism and the lower die mechanism are disengaged. At this time, the lower stripper plate 24 is also driven by the stripping spring 25 to move upward, so that the surface of the punch rod 51 is flush with the bottom wall of the station groove, and it returns to the non-punched state.

[0045] Refer to Figure 7 and Figure 8 , as an example, the upper die base includes a telescopic power member, a tool 3, an upper die seat 11, an upper backing plate 12, an upper clamping plate 13 and an upper template 14. The upper die seat 11, the upper backing plate 12, the upper clamping plate 13 and the upper template 14 are stacked from top to bottom and fixedly connected by bolts. In the figure, long bolts are sequentially passed through the upper die seat 11, the upper backing plate 12, the upper clamping plate 13 and the upper template 14 and are threadedly connected to the upper die seat 11, the upper backing plate 12, the upper clamping plate 13 and the upper template 14. A receiving groove is provided on the upper die seat 11, and the telescopic power member 42 is arranged in the receiving groove. The telescopic power member 42 in this embodiment is a cylinder. In other embodiments, the telescopic power member 42 can also be a hydraulic cylinder, a linear motor, etc. The ejector rod 41 is fixed on the output rod of the telescopic power member 42. A tool seat hole 141 is provided on the upper template 14, and the tool 3 is installed in the tool seat hole 141.

[0046] The upper backing plate 12 is provided with a first sliding hole penetrating in the up and down direction, the upper clamping plate 13 is provided with a second sliding hole penetrating in the up and down direction, both ends of the first sliding hole communicate with the receiving groove and the second sliding hole respectively, the cutting tool 3 is provided with a third sliding hole penetrating in the up and down direction, the ejector rod 41 passes through the first sliding hole and the second sliding hole, the third sliding hole forms the tool hole 31, and the telescopic power member 42 drives the ejector rod 41 to slide in the tool hole 31 in the up and down direction.

[0047] During punching, a part of the workpiece one 100 enters the tool hole 31 to form the workpiece two 200. The cut workpiece two 200 is pushed out of the tool hole 31 by the downward movement of the ejector rod 41, so as to facilitate the operator to collect the processed workpiece two 200. Before punching, there is a gap between the lower end face of the ejector rod 41 and the opening of the tool hole 31, that is, enough space is left for the cylinder 101 of the workpiece one 100 at the lower end face of the ejector rod 41 to enter the tool hole 31.

[0048] Referring to Figure 5 and Figure 6 , as an example, the lower die base includes a lower die seat 21, a lower backing plate 22, and a lower clamping plate 23 stacked from bottom to top. The lower die seat 21 is provided with a first receiving hole, the lower backing plate 22 is provided with a second receiving hole penetrating in the up and down direction, the lower clamping plate 23 is provided with a third receiving hole penetrating in the up and down direction, and the first receiving hole, the second receiving hole, and the third receiving hole form a receiving hole. The stripping spring 25 is arranged in the receiving hole, and the first receiving hole is a blind hole.

[0049] The lower clamping plate 23 is provided with a sliding groove, the sliding groove is opposite to the sliding groove, the lower end face of the punching rod 51 is fixed on the lower backing plate 22, and the punching rod 51 passes through the sliding groove and extends into the sliding groove.

[0050] As an example, air holes 243 and flow grooves 242 are provided on the lower stripping plate 24. The air holes 243 penetrate the lower stripping plate 24 in the up and down direction. An air passage is provided on the lower die base, and the air passage penetrates the lower die base in the up and down direction. The air passage communicates with the air holes 243. One end of the flow groove 242 communicates with the air holes 243, and the other end of the flow groove 242 communicates with the working groove. The lower die mechanism further includes a nozzle 52 and a trachea 53. The trachea 53 communicates with the nozzle 52. The trachea 53 is disposed in the air passage, and the nozzle 52 is disposed in the air hole 243 or the flow groove 242. The nozzle 52 jets air toward the working groove. The trachea 53 inputs gas into the nozzle 52. Generally, the trachea 53 is a flexible hose with a certain deformation ability or a telescopic pipe. When the nozzle 52 is disposed in the air hole 243, the gas is blown into the flow groove 242 and then enters the working groove 241. Or when the nozzle 52 is disposed in the flow groove 242, the nozzle 52 directly blows the gas into the working groove 241. In either way, the waste in the working groove 241 can be blown out by using gas. The flow groove 242, the air hole 243, and the air passage form a group, and multiple groups can be provided in other embodiments. Corresponding tracheas 53 and nozzles 52 also need to be provided in multiple numbers. By changing the direction of the flow groove 242, the blowing direction of the nozzle 52 can be changed.

[0051] Referring to Figure 6 , as an example, the lower die mechanism further includes a conveying plate 8. A conveying groove 81 is provided on the conveying plate 8. The conveying groove 81 includes a first groove 811 and a second groove 812. The width of the first groove 811 is smaller than the width of the second groove 812. The first groove 811 communicates with the second groove 812, so that the overall cross-section formed by the first groove 811 and the second groove 812 is an inverted T shape. The length of the first groove 811 is the same as the length of the second groove 812. One end of the first groove 811 in the length direction communicates with the working groove, and the other end of the first groove 811 in the length direction extends to the edge of the lower stripping plate 24. One end of the second groove 812 in the length direction communicates with the working groove, and the other end of the second groove 812 in the length direction extends to the edge of the lower stripping plate 24. The first groove 811 is used to convey the cylinder 101 of the workpiece, and the second groove 812 is used to convey the circular plate 102 of the workpiece.

[0052] As an example, a punching device further includes a loading mechanism. The loading mechanism includes a loader and a conveying channel. The loader is used to store workpieces and convey the workpieces to the conveying channel. One end of the conveying channel communicates with the conveying groove 81, and the other end of the conveying channel communicates with the loader. The loader is a vibrating disk, and the length of the conveying channel can be telescopic to adapt to the up and down displacement of the lower stripping plate 24.

[0053] As an example, a punching device further includes a discharging mechanism. The discharging mechanism includes a receiving groove 66 and a reciprocating assembly. The receiving groove 66 is installed on the reciprocating assembly, and the reciprocating assembly is used to drive the receiving groove 66 to approach or move away from directly below the cutting hole 31.

[0054] In this embodiment, referring to Figure 2 and Figure 4 , the reciprocating assembly includes a first connecting rod 61, a second connecting rod 62, a third connecting rod 63, a fourth connecting rod 64 and a fifth connecting rod 65. One end of the first connecting rod 61, one end of the second connecting rod 62 and one end of the third connecting rod 63 are rotatably connected through a first pivot 71. The other end of the second connecting rod 62 is rotatably connected to the fourth connecting rod 64 through a second pivot 72. The end of the fourth connecting rod 64 away from the second connecting rod 62 is rotatably connected to the lower die base through a third pivot 73.

[0055] One end of the third connecting rod 63 is connected to the fifth connecting rod 65 through a fourth pivot 74. The end of the fifth connecting rod 65 away from the third connecting rod 63 is rotatably connected to the upper die mechanism through a fifth pivot 75. The middle parts of the fourth connecting rod 64 and the fifth connecting rod 65 are rotatably connected through a sixth pivot 76.

[0056] A limiting groove 611 is arranged along the length direction of the first connecting rod 61. The sixth pivot 76 slides in the limiting groove 611. The first connecting rod 61 is parallel to the surface of the lower stripper plate 24. The second connecting rod 62 and the third connecting rod 63 are symmetric about the first connecting rod 61.

[0057] The first connecting rod 61 in this embodiment slides relative to the sixth pivot 76 along its length direction. Specifically, when the upper die mechanism moves away from the lower die mechanism, the fifth connecting rod 65 and the fourth connecting rod 64 rotate around the sixth pivot 76. The fifth pivot 75 moves away from the third pivot 73, and the second pivot 72 moves away from the fourth pivot 74. At this time, the material receiving groove 66 extends into the gap between the upper die mechanism and the lower die mechanism, and the material receiving groove 66 is located below the tool hole 31. Then, the workpiece two 200 in the tool hole 31 is ejected by the ejector rod 41, and the workpiece two 200 falls downward into the material receiving groove 66.

[0058] When the upper die mechanism approaches the lower die mechanism, the fifth pivot 75 approaches the fourth pivot 74, the second pivot 72 approaches the fourth pivot 74, and the material receiving groove 66 is located outside the outer edge of the upper template 14 and does not enter the gap between the upper template 14 and the lower stripper plate 24. Therefore, the material receiving groove 66 does not interfere with the punching operation.

[0059] As an example, the bottom wall of the material receiving groove 66 is inclined so that the workpiece slides from top to bottom along the bottom wall of the material receiving groove 66. The lower end of the material receiving groove 66 is open for discharging the workpiece from the lower end.

[0060] The working principle of the punching device according to the embodiment of the present utility model is as follows:

[0061] Before blanking, the upper die mechanism is far away from the lower die mechanism. At this time, the material receiving groove 66 extends into the space between the upper die mechanism and the lower die mechanism. There is a space between the lower end openings of the ejector rod 41 and the die hole 31. The lower stripper plate 24 and the lower clamping plate 23 are arranged at intervals in the up and down direction. The upper end face of the punching rod 51 is flush with the bottom wall of the working station groove 241.

[0062] The vibrating bowl feeds the workpiece 100 into the working station groove 241. The upper die mechanism moves downward until it contacts the lower stripper plate 24 and starts to drive the lower stripper plate 24 to move downward. The punching rod 51 gradually protrudes from the lower stripper plate 24, and a part of the workpiece 100 is punched into the die hole 31. During the blanking process, the material receiving groove 66 moves outwards from the space between the upper die mechanism and the lower die mechanism.

[0063] After the punching rod 51 completely punches the workpiece 100, the upper die mechanism moves away from the lower die mechanism. At this time, the first connecting rod 61 moves into the space between the upper die mechanism and the lower die mechanism until the material receiving groove 66 is located below the die hole 31. Then the air cylinder is started to drive the ejector rod 41 to move downward to push the workpiece 200 out of the die hole 31. The workpiece 200 falls into the material receiving groove 66, and the workpiece 200 slides out of the material receiving groove 66 along the bottom wall of the material receiving groove 66.

[0064] In other embodiments, the reciprocating assembly can be an air cylinder. The air cylinder is fixed on the upper die mechanism or the lower die mechanism. The material receiving groove 66 is fixed on the air cylinder. The air cylinder can also drive the material receiving groove 66 to receive the workpiece 200 through its expansion and contraction, and it will not affect the blanking action either.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A punching device, characterized in that: It includes an upper mold mechanism and a lower mold mechanism arranged below the upper mold mechanism; The upper die mechanism comprises an upper die base and a push rod, the upper die base is provided with a knife hole, the knife hole extends in the up-down direction, and the cross section of the knife hole is square; the push rod is arranged in the knife hole so as to be able to slide in the up-down direction in the knife hole; The lower die mechanism comprises a lower die base, a punch rod and a lower stripping plate, wherein the lower stripping plate is movably connected to the lower die base, and the lower stripping plate moves in an up-down direction. A station slot and a slide slot are provided on the lower stripping plate, wherein the station slot is used to place a workpiece, and the station slot is provided below the knife hole; The slide groove is directly opposite to the knife hole, the slide groove penetrates the lower stripping plate in the up-down direction, the upper side of the slide groove is connected to the station groove, the lower end of the punch rod is fixed on the lower die base, the upper end of the punch rod extends into the slide groove, and the cross section of the punch rod is the same as the cross section of the knife hole; In the first preset state, the upper die mechanism and the lower die mechanism are spaced apart, the lower stripping plate and the lower die base are spaced apart, the punch rod is inserted into the slide groove, and the upper end surface of the punch rod is flush with the bottom wall of the station groove; In the second preset state, the upper mold base fits the lower stripping plate, the lower stripping plate fits the lower mold base, and the upper end of the punch rod protrudes from the lower stripping plate and is inserted into the knife hole to punch and cut the workpiece located in the work station slot.

2. The punching device according to claim 1, characterized in that The lower mold base is provided with a receiving hole, the upper end of the receiving hole is open, and the lower end thereof is closed; The lower mold mechanism also includes a stripping spring, which extends and retracts in the up and down directions; the stripping spring is built into the accommodating hole, the upper end of the stripping spring is connected to the lower stripping plate, and the lower end of the stripping spring is connected to the bottom wall of the accommodating hole.

3. The punching device according to claim 1, characterized in that: The upper die base comprises a telescopic power member, a tool, an upper die seat, an upper pad, an upper clamping plate and an upper template, wherein the upper die seat, the upper pad, the upper clamping plate and the upper template are stacked from top to bottom, an accommodating groove is provided on the upper die seat, the telescopic power member is arranged in the accommodating groove, the ejector rod is fixed on the output rod of the telescopic power member, a tool holder hole is provided on the upper template, and the tool is installed in the tool holder hole; The upper pad is provided with a first sliding hole extending through the upper and lower directions, the upper clamp is provided with a second sliding hole extending through the upper and lower directions, the two ends of the first sliding hole are respectively connected to the accommodating groove and the second sliding hole, the tool is provided with a third sliding hole extending through the upper and lower directions, the push rod is penetrated by the first sliding hole and the second sliding hole, the third sliding hole constitutes the tool hole, and the telescopic power member drives the push rod to slide in the tool hole in the upper and lower directions.

4. The punching device according to claim 2, characterized in that: The lower mold base comprises a lower mold base, a lower pad, and a lower clamping plate stacked from bottom to top, the lower mold base is provided with a first accommodating hole, the lower pad is provided with a second accommodating hole penetrating in the up-down direction, and the lower clamping plate is provided with a third accommodating hole penetrating in the up-down direction, and the first accommodating hole, the second accommodating hole and the third accommodating hole constitute the accommodating hole; The lower clamping plate is provided with a sliding groove, the sliding groove is directly opposite to the sliding groove, the lower end surface of the punch rod is fixed to the lower pad, and the punch rod is penetrated by the sliding groove and extends into the sliding groove.

5. The punching device according to claim 4, characterized in that The lower stripping plate is provided with air holes and flow grooves, the air holes penetrate the lower stripping plate in the up-down direction, the lower mold base is provided with an air channel, the air channel penetrates the lower mold base in the up-down direction, the air channel is connected to the air holes, one end of the flow groove is connected to the air holes, and the other end of the flow groove is connected to the station groove; The lower mold mechanism also includes an air nozzle and an air pipe, the air pipe is connected to the air nozzle, the air pipe is arranged in the air channel, the air nozzle is arranged in the air hole or the flow groove, and the air nozzle faces the workstation groove.

6. The punching device according to claim 1, characterized in that The lower mold mechanism also includes a conveying plate, on which a conveying groove is arranged, and the conveying groove includes a first groove and a second groove, the width of the first groove is smaller than the width of the second groove, the first groove is connected to the second groove, so that the cross-section of the conveying groove is an inverted T-shape, the length of the first groove is the same as the length of the second groove, one end of the first groove in the length direction is connected to the work station groove, and the other end of the first groove in the length direction extends to the edge of the lower stripping plate, one end of the second groove in the length direction is connected to the work station groove, and the other end of the second groove in the length direction extends to the edge of the lower stripping plate; the first groove is used to convey the cylinder of the workpiece, and the second groove is used to convey the circular plate of the workpiece.

7. The punching device according to claim 6, characterized in that It also includes a loading mechanism, which includes a loading machine and a conveying channel. The loading machine is used to store workpieces and convey the workpieces to the conveying channel. One end of the conveying channel is connected to the conveying trough, and the other end of the conveying channel is connected to the loading machine.

8. The punching device according to claim 1, characterized in that It also includes a material discharging mechanism, which includes a material receiving trough and a reciprocating component. The material receiving trough is installed on the reciprocating component, and the reciprocating component is used to drive the material receiving trough to approach or move away from the knife hole.

9. The punching device according to claim 8, characterized in that The reciprocating assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod, one end of the first connecting rod, one end of the second connecting rod and one end of the third connecting rod are rotatably connected via a first pivot, the other end of the second connecting rod is rotatably connected to the fourth connecting rod via a second pivot, and one end of the fourth connecting rod away from the second connecting rod is rotatably connected to the lower mold base via a third pivot; One end of the third connecting rod is connected to the fifth connecting rod via a fourth pivot, one end of the fifth connecting rod away from the third connecting rod is rotatably connected to the upper mold mechanism via a fifth pivot, and the middle part of the fourth connecting rod and the middle part of the fifth connecting rod are rotatably connected via a sixth pivot; A limiting groove is arranged on the first connecting rod along its length direction, the sixth pivot slides in the limiting groove, and the first connecting rod is parallel to the upper surface of the lower release plate.

10. The punching device according to claim 9, characterized in that The bottom wall of the material receiving trough is arranged to be inclined so that the workpiece can slide from top to bottom along the bottom wall of the material receiving trough. The lower end of the material receiving trough is open for discharging the workpiece from the lower end.

Images