A stamping die for arc-shaped sheet metal workpiece

Abstract

The present invention relates to the field of stamping die technology, specifically a stamping die for arc-shaped sheet metal workpieces, comprising a hydraulic press, a top plate, a chassis, a first linkage rod, a conveyor belt, a track box, a base, a support column, an upper die, a material pushing mechanism, a chain, a brake mechanism, a load-bearing seat, a side plate, an electromagnetic adsorption component, a lower die, a material transport component and a track transmission mechanism, wherein the load-bearing seat is fixedly mounted on the bottom wall of the base, the bottom of the lower die is fixedly connected to the top of the load-bearing seat, a chassis is mounted on one side of the top of the base, and a side plate is mounted on the other side of the top of the base, and track boxes are mounted on both sides of the base. The present invention uses a power mechanism and transmits to the conveyor belt, and the material transport component installed on the conveyor belt realizes automatic material withdrawal after the workpiece processing is completed, realizes automatic material transportation, reduces labor, and increases work efficiency, and uses the telescopic movement of the hydraulic press as a power source for material transportation to avoid waste of resources.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die for an arc-shaped sheet metal workpiece. Background Art

[0002] A stamping die is a special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. It is called a cold stamping die (commonly known as a cold stamping die). Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to cause it to separate or plastically deform, thereby obtaining the desired parts.

[0003] During the stamping process, workers are often required to carry the workpiece to the processing position. In order to ensure safe production, avoid squeezing the workers' hands during the stamping process, and reduce the repetitive labor of workers carrying workpieces, an independent peripheral material transport mechanism is often added to the mold, making the structure of the stamping component more complicated, too large, and requiring an independent power source, which will cause unnecessary waste of resources and energy. After the stamping is completed, the workpiece on the mold after the processing is often required to be manually carried, which is not only unsafe, but also reduces production efficiency.

[0004] Therefore, a stamping die for arc-shaped sheet metal workpiece is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a stamping die for arc-shaped sheet metal workpieces, which is transmitted to a conveyor belt through a power mechanism. The material transport component installed on the conveyor belt realizes automatic material return after the workpiece processing is completed, realizes automatic material transport, reduces labor, and increases work efficiency. The telescopic movement of the hydraulic press is used as the power source for material transport, thereby avoiding waste of resources to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stamping die for an arc-shaped sheet metal workpiece, comprising a hydraulic press, a top plate, a chassis, a first linkage rod, a feed belt, a crawler box, a base, a support column, an upper die, a material pushing mechanism, a chain, a braking mechanism, a load-bearing seat, a side plate, an electromagnetic adsorption component, a lower die, a material transport component and a crawler transmission mechanism, wherein the load-bearing seat is fixedly mounted on the bottom wall of the base, the bottom of the lower die is fixedly connected to the top of the load-bearing seat, an electromagnetic adsorption component is installed inside the lower die, a chassis is installed on one side of the top of the base, and a side plate is installed on the other side of the top of the base, and the bottom Crawler boxes are installed on both sides of the seat, a conveyor belt is installed inside the base, and several groups of material transport components are installed on the side of the conveyor belt, a plurality of support columns are fixedly installed between the base and the top plate, a hydraulic press is fixedly installed on the top wall of the top plate, and the telescopic end of the hydraulic press is fixedly connected with the upper mold, a connecting rod is fixedly connected between the telescopic end of the hydraulic press and the first connecting rod, a crawler transmission mechanism is installed at one end of the first connecting rod, and a pushing mechanism is installed at the other end of the first connecting rod, and a braking mechanism is installed on one side of the first connecting rod.

[0008] First, when the workpiece is placed on the conveyor belt, the hydraulic press drives the upper die to move downward and drives the push mechanism to operate, driving the L-shaped push block to push the workpiece inward onto the support plate. At this time, the hydraulic press drives the upper die to move upward, and drives the crawler transmission mechanism to operate and drive the conveyor belt to operate. At this time, the conveyor belt transports the workpiece to the processing position. At the same time, the hydraulic press drives the upper die to punch the workpiece downward, and drives the braking mechanism in the process. The braking mechanism makes the conveyor belt stagnant during the punching process. When the hydraulic press punches the workpiece, the upper die first squeezes the workpiece downward, and the workpiece is punched downward at this time. After the punching is completed, the upper die moves upward. The workpiece is no longer subjected to the pressure applied by the upper die. When the upper die is separated from the processed workpiece, the conveyor belt drives the processed workpiece to move, and the punching of the workpiece is completed. During the punching process, the electromagnetic adsorption component automatically adsorbs the workpiece through the power mechanism and transmits it to the conveyor belt. The material transport component installed on the conveyor belt realizes the automatic material withdrawal after the workpiece is processed, realizes automatic material transportation, reduces labor, increases work efficiency, and uses the telescopic movement of the hydraulic press as the power source for material transportation to avoid waste of resources.

[0009] Preferably, the electromagnetic adsorption assembly includes an adsorption seat, a telescopic rod, a first spring, a conductive head, a power-carrying block and a cushion block, a first spring is installed between one end of the conductive head and the inner wall of the lower mold, the power-carrying block is installed on one side of the inner wall of the lower mold, and the power-carrying block is electrically connected to the hydraulic motor, the side of the conductive head passes through the cushion block installed at the bottom end of the telescopic rod, the top end of the telescopic rod is fixedly connected to the bottom of the adsorption seat, and an electromagnet is installed inside the adsorption seat, and the electromagnet is electrically connected to the conductive head.

[0010] When the upper die squeezes the workpiece downward, the adsorption seat begins to move downward under the downward pressure of the workpiece and drives the conductive head to move downward. When the conductive head moves downward, it is electrically connected to the power block. At this time, the electromagnet built into the adsorption seat is energized and magnetized to adsorb the workpiece. When the stamping is completed, the first spring drives the adsorption seat to move upward. At this time, the conductive head and the power block are gradually separated. After the conductive head is separated from the power block, the electromagnet built into the adsorption seat is powered off and the magnetism disappears, which greatly increases the stability of the workpiece during the stamping process and reduces the unstable factors in the stamping process of the workpiece, thereby improving the quality of the processed workpiece.

[0011] Preferably, the material transport assembly includes a supporting plate, a connecting head, a second spring, a support plate and a rubber belt, a second protrusion is fixedly connected to one side of the bottom of the support plate, one side of the support plate is connected to the side of the supporting plate through a pin shaft, a second spring is installed between the supporting plate and the second protrusion, and a connecting head is installed on one side of the supporting plate, and a rubber belt is connected between the two relative groups of support plates.

[0012] The conveyor belt is provided with several groups of material transport components. When the supporting plate lifts the workpiece to the processing position, the upper die moves downward and squeezes the workpiece to the lower die. The second spring connected to the bottom of the supporting plate is forced to contract downward, and the connecting head on the supporting plate fits with the groove on the lower die to automatically complete the material discharge. After the workpiece is successfully processed, the upper die moves upward and returns to its position. At this time, the force on the second spring gradually decreases and gradually pushes the supporting plate to flip upward, and the connecting head on the supporting plate gradually lifts the workpiece and moves upward to automatically complete the material return. The simple mechanism is used to enable the material transport component to not only transport the workpiece, but also automatically complete the material return step, thus avoiding manual handling and greatly saving labor.

[0013] Preferably, the track transmission mechanism includes a ratchet bar, a one-way bearing, a ratchet, a roller and a second connecting rod, a ratchet bar is installed on one side of the bottom of the second connecting rod, the ratchet bar and the ratchet are meshed with each other, a one-way bearing is installed on the inner wall of the ratchet, a roller is fixedly installed inside the roller, and the inner wall of the one-way bearing is movably connected to one end of the roller.

[0014] The telescopic movement of the hydraulic press links the roller to make unidirectional movement, and there is no need to install an external power source, thus avoiding the waste of resources. The roller drives the conveyor belt to operate, and the hydraulic press cannot be driven to operate the roller when punching the workpiece downward. When the hydraulic press completes the punching and moves upward to return to its position, the transmission roller drives the conveyor belt to transport materials, so that the conveyor belt automatically stops and operates. The structure is simple and easy to disassemble and assemble.

[0015] Preferably, the pushing mechanism includes a third connecting rod, a first gear, a first bevel gear, a second gear, a fourth connecting rod and an L-shaped pushing block, a first rack is installed on one side of the third connecting rod, the first rack is meshed with the first gear, the first gear is connected to the second bevel gear through a connecting rod, the second bevel gear is meshed with the first bevel gear, the first bevel gear is connected to the second gear through a connecting rod, and the side surface of the connecting rod is at the center of the second gear, the second gear is meshed with the second rack installed on the fourth connecting rod, one end of the fourth connecting rod is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to one side of the top of the L-shaped pushing block.

[0016] The telescopic movement of the hydraulic press links the pushing mechanism. The conveyor belt does not run when punching the workpiece. At this time, the third linkage rod moves downward, and the first rack on the third linkage rod meshes with the first gear to drive the second bevel gear to mesh with the first bevel gear. The first bevel gear drives the second gear to run, completing the conversion from linear motion to circular motion, and the top of the track box is flush with the top of the support plate and the rubber belt. At this time, the second gear drives the L-shaped push block inward through the meshing transmission with the second rack. In this process, the L-shaped push block slides from the top of the track box to the top of the support plate and the rubber belt. When the L-shaped push block completes the sliding process, it pushes the workpiece onto the support plate. When the workpiece is processed When completed, the hydraulic press moves upward and drives the conveyor belt to operate. At this time, the pushing mechanism moves in the opposite direction, causing the L-shaped pushing block to expand outward. In this process, the L-shaped pushing block slides from the top of the support plate and the rubber belt to the top of the track box. When the L-shaped pushing block stops expanding, the worker can continue to place the workpiece on the top of the material transport component, specifically the top of the support plate and the rubber belt. Through the linkage between the hydraulic press and the pushing mechanism, the installation of an external power source is avoided, energy consumption is saved, and waste of resources is reduced. The workpiece is pushed onto the support plate by the pushing mechanism, and the worker does not need to spend time and effort to correct the position of the workpiece, which reduces the worker's workload and improves the worker's work efficiency.

[0017] Preferably, the braking mechanism includes a fifth connecting rod, a connecting rod, a friction block, a third spring, a sliding cavity and a fixed head, one end of the fifth connecting rod is fixedly connected to the top of the sliding cavity, the inner wall of the sliding cavity is slidingly connected to the side of the third protrusion, and a third spring is installed between the sliding cavity and the third protrusion, the bottom of the third protrusion is fixedly connected to the top of the connecting rod, and the other end of the connecting rod is fixedly connected to the top of the fixed head, and a friction block is fixedly installed on the bottom of the fixed head.

[0018] In order to prevent the track from not stopping in time due to inertia when the workpiece is stamped, the friction generated by the friction block pressing the track downward makes the track stop in time, and the third spring built into the braking mechanism makes the friction block and the track have a certain delay, which improves the stability of the mechanism and the yield of the stamping process.

[0019] Preferably, a chain is installed inside the conveyor belt.

[0020] A chain is set inside the conveyor belt to make the conveyor belt more stable during movement, thereby avoiding the displacement of the workpiece during the stamping process and increasing the yield rate of the workpiece.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The hydraulic press telescopic movement links the roller to make unidirectional movement, and there is no need to install an external power source, thus avoiding the waste of resources. The roller drives the conveyor belt to operate, and the hydraulic press cannot be driven to operate when punching the workpiece downward. When the hydraulic press completes the punching and moves upward to return to its position, the transmission roller drives the conveyor belt to transport materials, so that the conveyor belt automatically stops and operates. The structure is simple and easy to disassemble and assemble.

[0023] 2. Several groups of material transport components are installed on the conveyor belt. When the support plate lifts the workpiece to the processing position, the upper die moves downward and squeezes the workpiece to the lower die. The second spring connected to the bottom of the support plate is forced to shrink downward, and the connecting head on the support plate fits with the groove on the lower die to automatically complete the material discharge. After the workpiece is successfully processed, the upper die moves upward and returns to its position. At this time, the force on the second spring gradually decreases and gradually pushes the support plate to flip upward, and the connecting head on the support plate gradually lifts the workpiece and moves upward to automatically complete the material return. The simple mechanism allows the material transport component to not only transport the workpiece, but also automatically complete the material return step, avoiding manual handling and greatly saving labor.

[0024] 3. When the upper die squeezes the workpiece downward, the adsorption seat begins to move downward under the downward pressure of the workpiece and drives the conductive head to move downward. When the conductive head moves downward, it is electrically connected to the power block. At this time, the electromagnet built into the adsorption seat is energized and magnetic and adsorbs the workpiece. When the stamping is completed, the first spring drives the adsorption seat to move upward. At this time, the conductive head and the power block are gradually separated. After the conductive head is separated from the power block, the electromagnet built into the adsorption seat is powered off and the magnetism disappears, which greatly increases the stability of the workpiece during the stamping process and reduces the unstable factors in the stamping process of the workpiece, thereby improving the quality of the processed workpiece.

[0025] 4. The first spring drives the adsorption head to do telescopic movement. When the workpiece is stamped, the adsorption seat moves downward and drives the conductive head downward to connect with the power block. At this time, the electronic iron is energized and adsorbs the workpiece. When the stamping process is completed, the first spring drives the adsorption seat to move upward and the conductive head moves upward and separates from the power block. The automatic adsorption of the adsorption head is completed through the automatic connection and separation of the conductive head and the power block. The structure is simple.

[0026] 5. The push mechanism is linked by the telescopic movement of the hydraulic press. The feed belt does not run when the workpiece is punched. At this time, the third linkage rod moves downward, and the first rack on the third linkage rod meshes with the first gear to drive the second bevel gear to mesh with the first bevel gear. The first bevel gear drives the second gear to run, completing the transformation from linear motion to circular motion, and the top of the track box is flush with the top of the support plate and the rubber belt. At this time, the second gear drives the L-shaped push block inward through the meshing transmission with the second rack. In this process, the L-shaped push block slides from the top of the track box to the top of the support plate and the rubber belt. When the L-shaped push block completes the sliding process, it pushes the workpiece onto the support plate. When the workpiece When the processing is completed, the hydraulic press moves upward and drives the conveyor belt to operate. At this time, the pushing mechanism moves in the opposite direction, causing the L-shaped pushing block to expand outward. During this process, the L-shaped pushing block slides from the top of the support plate and the rubber belt to the top of the track box. When the L-shaped pushing block stops expanding, the worker can continue to place the workpiece on the top of the material transport assembly, specifically the top of the support plate and the rubber belt. Through the linkage between the hydraulic press and the pushing mechanism, the installation of an external power source is avoided, energy consumption is saved, and waste of resources is reduced. The workpiece is pushed onto the support plate by the pushing mechanism, and the worker does not need to spend time and effort to correct the position of the workpiece, which reduces the worker's workload and improves the worker's work efficiency.

[0027] 6. Through the braking mechanism, in order to prevent the crawler from not stopping in time due to inertia when the workpiece is stamped, the friction generated by the friction block pressing the crawler makes the crawler stop in time, and the third spring built into the braking mechanism makes the friction block and the crawler have a certain delay, which improves the stability of the mechanism and the yield of the stamping process.

[0028] 7. A chain is set inside the conveyor belt to make the conveyor belt more stable during movement, thereby avoiding the displacement of the workpiece during the stamping process and increasing the yield rate of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a front structural cross-sectional view of the present invention;

[0031] Figure 3 It is an enlarged view of the structure of part A of the present invention;

[0032] Figure 4 It is an enlarged view of the structure of part B of the present invention;

[0033] Figure 5 It is an enlarged view of the structure of part C of the present invention;

[0034] Figure 6 It is an enlarged view of the structure of part D of the present invention;

[0035] Figure 7 It is an enlarged view of the structure of part E of the present invention;

[0036] Figure 8 It is an enlarged view of the structure of part F of the present invention;

[0037] Fig. 9 It is a partial top view of the pushing mechanism and the conveyor belt of the present invention.

[0038] In the figure: 1, hydraulic press; 2, top plate; 3, chassis; 4, first linkage rod; 5, conveyor belt; 6, crawler box; 7, base; 8, support column; 9, upper die; 10, material pushing mechanism; 11, chain; 12, brake mechanism; 13, load-bearing seat; 14, side plate; 15, electromagnetic adsorption assembly; 16, lower die; 17, material transport assembly; 18, crawler transmission mechanism; 151, adsorption seat; 152, telescopic rod; 153, first spring; 154, conductive head; 155, power block; 156, cushion block; 171, support plate; 172, connecting head; 173, second spring; 174, supporting plate; 175, rubber belt; 181, ratchet bar; 182, one-way bearing; 183, ratchet; 184, roller; 185, second connecting rod; 101, third connecting rod; 102, first gear; 103, first bevel gear; 104, second gear; 105, fourth connecting rod; 106, L-shaped push block; 121, fifth connecting rod; 122, connecting rod; 123, friction block; 124, third spring; 125, sliding cavity; 126, fixing head. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figures 1 to 9 The present invention provides a stamping die for a curved sheet metal workpiece, and the technical solution is as follows:

[0043] A stamping die for an arc-shaped sheet metal workpiece includes a hydraulic press 1, a top plate 2, a chassis 3, a first linkage rod 4, a feed belt 5, a crawler box 6, a base 7, a support column 8, an upper die 9, a material pushing mechanism 10, a chain 11, a braking mechanism 12, a load-bearing seat 13, a side plate 14, an electromagnetic adsorption component 15, a lower die 16, a material transport component 17 and a crawler transmission mechanism 18. The load-bearing seat 13 is fixedly mounted on the bottom wall of the base 7, the bottom of the lower die 16 is fixedly connected to the top of the load-bearing seat 13, the lower die 16 is internally installed with an electromagnetic adsorption component 15, one side of the top of the base 7 is installed with a chassis 3, and the other side of the top of the base 7 is installed with Side plates 14, crawler boxes 6 are installed on both sides of the base 7, a conveyor belt 5 is installed inside the base 7, and several groups of material transport components 17 are installed on the side of the conveyor belt 5, a plurality of support columns 8 are fixedly installed between the base 7 and the top plate 2, a hydraulic press 1 is fixedly installed on the top wall of the top plate 2, and the telescopic end of the hydraulic press 1 is fixedly connected to the upper mold 9, a connecting rod is fixedly connected between the telescopic end of the hydraulic press 1 and the first connecting rod 4, a crawler transmission mechanism 18 is installed at one end of the first connecting rod 4, and a pushing mechanism 10 is installed at the other end of the first connecting rod 4, and a braking mechanism 12 is installed on one side of the first connecting rod 4.

[0044] First, when the workpiece is placed on the conveyor belt 5, the hydraulic press 1 drives the upper die 9 to move downward and drives the pushing mechanism 10 to operate, driving the L-shaped pushing block 106 to push the workpiece inward onto the supporting plate 171. At this time, the hydraulic press 1 drives the upper die 9 to move upward, and at the same time drives the crawler transmission mechanism 18 to operate and drive the conveyor belt 5 to operate. At this time, the conveyor belt 5 transports the workpiece to the processing position. At the same time, the hydraulic press 1 drives the upper die 9 to punch the workpiece downward, and drives the brake mechanism 12 in this process. The brake mechanism 12 makes the conveyor belt 5 stably stagnant during the punching process. When the hydraulic press 1 punches the workpiece, first First, the upper die 9 squeezes the workpiece downward, and the workpiece is stamped downward at this time. After the stamping is completed, the upper die 9 moves upward, and the workpiece is no longer subjected to the pressure applied by the upper die 9. When the upper die 9 is separated from the processed workpiece, the conveyor belt 5 rotates to drive the processed workpiece to move, and the stamping of the workpiece is completed. During the stamping process, the electromagnetic adsorption component 15 automatically adsorbs the workpiece, and the material transport component 17 installed on the conveyor belt 5 realizes automatic material return after the workpiece is processed, realizes automatic material transportation, reduces labor, and increases work efficiency. The telescopic movement of the hydraulic press 1 is used as the power source for material transportation to avoid waste of resources.

[0045] As an embodiment of the present invention, refer to Figure 4 The electromagnetic adsorption component 15 includes an adsorption seat 151, a telescopic rod 152, a first spring 153, a conductive head 154, a power block 155 and a cushion block 156. The first spring 153 is installed between one end of the conductive head 154 and the inner wall of the lower mold 16. The power block 155 is installed on one side of the inner wall of the lower mold 16, and the power block 155 is electrically connected to the hydraulic press 1. The side of the conductive head 154 passes through the cushion block 156 installed at the bottom end of the telescopic rod 152. The top end of the telescopic rod 152 is fixedly connected to the bottom of the adsorption seat 151, and an electromagnet is installed inside the adsorption seat 151, and the electromagnet is electrically connected to the conductive head 154.

[0046] When the upper die 9 squeezes the workpiece downward, the adsorption seat 151 begins to move downward due to the downward pressure of the workpiece and drives the conductive head 154 to move downward. When the conductive head 154 moves downward, it is electrically connected to the power block 155. At this time, the electromagnet built into the adsorption seat 151 is energized and magnetized to adsorb the workpiece. When the stamping is completed, the first spring 153 drives the adsorption seat 151 to move upward. At this time, the conductive head 154 is gradually separated from the power block 155. After the conductive head 154 is separated from the power block 155, the electromagnet built into the adsorption seat 151 is powered off and the magnetism disappears, which greatly increases the stability of the workpiece during the stamping process and reduces the unstable factors in the stamping process of the workpiece, thereby improving the quality of the processed workpiece.

[0047] As an embodiment of the present invention, refer to Figure 5The material transport component 17 includes a supporting plate 171, a connecting head 172, a second spring 173, a support plate 174 and a rubber belt 175. A second protrusion is fixedly connected to one side of the bottom of the support plate 174. One side of the support plate 174 is connected to the side of the supporting plate 171 through a pin shaft. A second spring 173 is installed between the supporting plate 171 and the second protrusion, and a connecting head 172 is installed on one side of the supporting plate 171. A rubber belt 175 is connected between the two relative groups of support plates 174.

[0048] Several groups of material transport components 17 are installed on the conveyor belt 5. When the supporting plate 171 lifts the workpiece to the processing position, the upper mold 9 moves downward and squeezes the workpiece to the lower mold 16. The second spring 173 connected to the bottom of the supporting plate 171 is forced to shrink downward, and the connecting head 172 on the supporting plate 171 fits with the groove on the lower mold 16 to automatically complete the material discharge. After the workpiece is successfully processed, the upper mold 9 moves upward and returns to its position. At this time, the force on the second spring 173 gradually decreases and gradually pushes the supporting plate 171 to flip upward, and the connecting head 172 on the supporting plate 171 gradually lifts the workpiece upward to automatically complete the material return. The simple mechanism allows the material transport component 17 to not only transport the workpiece, but also automatically complete the material return step, avoiding manual handling and greatly saving labor.

[0049] As an embodiment of the present invention, refer to Figure 6 The crawler transmission mechanism 18 includes a ratchet bar 181, a one-way bearing 182, a ratchet 183, a roller 184 and a second connecting rod 185. A ratchet bar 181 is installed on one side of the bottom of the second connecting rod 185. The ratchet bar 181 and the ratchet 183 are meshed with each other. The inner wall of the ratchet 183 is installed with a one-way bearing 182. A roller is fixedly installed inside the roller 184, and the inner wall of the one-way bearing 182 is movably connected to one end of the roller.

[0050] The telescopic movement of the hydraulic press 1 links the roller 184 to make unidirectional movement, and there is no need to install an external power source, thereby avoiding waste of resources. The roller 184 drives the conveyor belt 5 to operate, and when the hydraulic press 1 punches the workpiece downward, it cannot be driven to the roller 184 for operation. When the hydraulic press 1 completes the punching and moves upward to return to its position, the transmission roller 184 drives the conveyor belt 5 to convey materials, so that the conveyor belt 5 automatically stops and operates. The structure is simple and the disassembly and assembly are convenient.

[0051] As an embodiment of the present invention, refer to Figure 3 and Fig. 9The pushing mechanism 10 includes a third connecting rod 101, a first gear 102, a first bevel gear 103, a second gear 104, a fourth connecting rod 105 and an L-shaped pushing block 106. A first rack is installed on one side of the third connecting rod 101, and the first rack is meshed with the first gear 102. The first gear 102 is connected to the second bevel gear through a connecting rod, and the second bevel gear is meshed with the first bevel gear 103. The first bevel gear 103 is connected to the second gear 104 through a connecting rod, and the side surface of the connecting rod is connected to the center of the second gear 104. The second gear 104 is meshed with the second rack installed on the fourth connecting rod 105. One end of the fourth connecting rod 105 is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to one side of the top of the L-shaped pushing block 106.

[0052] The telescopic movement of the hydraulic press 1 links the pushing mechanism 10. The feeding belt 5 does not operate when punching the workpiece. At this time, the third linkage rod 101 moves downward, and the first rack on the third linkage rod 101 meshes with the first gear 102 for transmission, driving the second bevel gear to mesh with the first bevel gear 103 for transmission. The first bevel gear 103 drives the second gear 104 to operate, completing the conversion from linear motion to circular motion, and the top of the track box 6 is flush with the top of the support plate 174 and the rubber belt 175. At this time, the second gear 104 drives the L-shaped push block 106 to push inward through the meshing transmission with the second rack. In this process, the L-shaped push block 106 slides from the top of the track box 6 to the top of the support plate 174 and the rubber belt 175. When the L-shaped push block 106 completes the sliding process, it pushes the workpiece to the support plate 17 1, when the workpiece is processed, the hydraulic press 1 moves upward and drives the conveyor belt 5 to operate. At this time, the pushing mechanism 10 moves in the opposite direction, so that the L-shaped pushing block 106 expands outward. In this process, the L-shaped pushing block 106 slides from the top of the support plate 174 and the rubber belt 175 to the top of the track box 6. When the L-shaped pushing block 106 stops expanding, the worker can continue to place the workpiece on the top of the material transport component 17, specifically the top of the support plate 174 and the rubber belt 175. Through the linkage between the hydraulic press 1 and the pushing mechanism 10, the installation of an external power source is avoided, the energy consumption is saved, and the waste of resources is reduced. The pushing mechanism 10 pushes the workpiece to fall on the supporting plate 171, and the worker does not need to spend time and effort to correct the position of the workpiece, which reduces the labor of the worker and improves the work efficiency of the worker.

[0053] As an embodiment of the present invention, refer to Figure 7The brake mechanism 12 includes a fifth connecting rod 121, a connecting rod 122, a friction block 123, a third spring 124, a sliding cavity 125 and a fixed head 126, one end of the fifth connecting rod 121 is fixedly connected to the top of the sliding cavity 125, the inner wall of the sliding cavity 125 is slidably connected to the side of the third protrusion, and a third spring 124 is installed between the sliding cavity 125 and the third protrusion, the bottom of the third protrusion is fixedly connected to the top of the connecting rod 122, and the other end of the connecting rod 122 is fixedly connected to the top of the fixed head 126, and the friction block 123 is fixedly installed on the bottom of the fixed head 126.

[0054] In order to prevent the track from not being able to stop in time due to inertia when the workpiece is stamped, the friction generated by the friction block 123 pressing the track downward makes the track stop in time, and the third spring 124 built into the braking mechanism 12 makes the friction block 123 and the track have a certain delay, thereby improving the stability of the mechanism and the yield of the stamping process.

[0055] As an embodiment of the present invention, refer to Figure 8 A chain 11 is installed inside the conveyor belt 5.

[0056] A chain 11 is arranged inside the conveyor belt 5 to make the conveyor belt 5 more stable during movement, thereby avoiding displacement of the workpiece during the stamping process and increasing the yield rate of the workpiece.

[0057] Working principle: First, when the workpiece is placed on the conveyor belt 5, the telescopic movement of the hydraulic press 1 links the pushing mechanism 10. The conveyor belt 5 does not operate when the workpiece is punched. At this time, the third linkage rod 101 moves downward, and the first rack on the third linkage rod 101 meshes with the first gear 102 for transmission, driving the second bevel gear to mesh with the first bevel gear 103 for transmission. The first bevel gear 103 drives the second gear 104 to operate, completing the conversion from linear motion to circular motion, and the top of the track box 6 is flush with the top of the support plate 174 and the rubber belt 175. At this time, the second gear 104 drives the L-shaped push block 106 to push inward through the meshing transmission with the second rack. In this process, the L-shaped push block 106 slides from the top of the track box 6 to the support plate 174 and the rubber belt 175, when the L-shaped push block 106 completes the sliding process, it pushes the workpiece onto the supporting plate 171. When the workpiece is processed, the hydraulic press 1 moves upward and drives the conveyor belt 5 to operate. At this time, the pushing mechanism 10 moves in the opposite direction, so that the L-shaped push block 106 expands outward. In this process, the L-shaped push block 106 slides from the top of the support plate 174 and the rubber belt 175 to the top of the crawler box 6. At this time, the hydraulic press 1 drives the upper mold 9 to move upward, and at the same time drives the crawler transmission mechanism 18 to operate. The ratchet bar 181 on the second connecting rod 185 moves upward and meshes with the ratchet 183. The built-in one-way bearing 182 is driven by the operation of the ratchet 183. The one-way bearing 182 drives the roller and the roller 184 to operate, and the roller 184 drives the conveyor belt 5 to operate. The conveyor belt 5 conveys the workpiece to the processing position, and the hydraulic press 1 drives the upper die 9 to punch the workpiece downward, and drives the brake mechanism 12 in the process. The fifth linkage rod 121 moves downward so that the friction block 123 contacts the conveyor belt 5, so that the conveyor belt 5 is stably stagnant during the punching process, and the contraction of the third spring 124 makes the brake mechanism 12 have a certain delay. When the hydraulic press 1 punches the workpiece, the upper die 9 first squeezes the workpiece downward, so that the supporting plate 171 flips downward and drives the second spring 173 to contract downward. At this time, the connecting head 172 fits with the groove on the lower die 16, and the workpiece is punched downward at this time. After the punching is completed, the upper die 9 moves upward. The workpiece is no longer subjected to the pressure applied by the upper die 9 at this time, and the third spring 124 returns upward The spring drives the support plate 171 to flip upward, and the connecting head 172 drives the workpiece that has been stamped to move upward. When the upper die 9 is separated from the processed workpiece, the conveyor belt 5 runs to drive the processed workpiece to move. During the stamping process, the electromagnetic adsorption component 15 automatically adsorbs the workpiece. When the upper die 9 squeezes the workpiece downward, the adsorption seat 151 begins to move downward under the downward pressure of the workpiece and drives the conductive head 154 to move downward. When the conductive head 154 moves downward, it is electrically connected to the power block 155. At this time, the electromagnet built into the adsorption seat 151 is energized and magnetic and adsorbs the workpiece. When the stamping is completed, the first spring 153 drives the adsorption seat 151 to move upward. At this time, the conductive head 154 and the power block 155 are gradually separated. When the conductive head 154 is separated from the power block 155,The electromagnet built into the adsorption seat 151 is powered off and the magnetism disappears. At this time, the conveyor belt 5 drives the workpiece away, completing the stamping process.

[0058] The electrical components appearing in this article are all connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device that controls a computer, etc. The product model provided by the present invention is only used for the technical solution according to the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more matching and consistent with the technical solution of the present invention. It is a technical solution for the best application of the technical solution. The model of its product can be replaced and modified according to the required technical parameters, which is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain the corresponding use effect through the technical solution provided by the present invention.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for an arc-shaped sheet metal workpiece, comprising a hydraulic press (1), a top plate (2), a chassis (3), a first linkage rod (4), a conveyor belt (5), a crawler box (6), a base (7), a support column (8), an upper die (9), a material pushing mechanism (10), a chain (11), a brake mechanism (12), a bearing seat (13), a side plate (14), an electromagnetic adsorption component (15), a lower die (16), a material transport component (17) and a crawler transmission mechanism (18), characterized in that: The load-bearing seat (13) is fixedly mounted on the bottom wall of the base (7); the bottom of the lower mold (16) is fixedly connected to the top of the load-bearing seat (13); an electromagnetic adsorption component (15) is installed inside the lower mold (16); a chassis (3) is installed on one side of the top of the base (7); and a side plate (14) is installed on the other side of the top of the base (7); track boxes (6) are installed on both sides of the base (7); a conveyor belt (5) is installed inside the base (7); and a plurality of material transport components (17) are installed on the side of the conveyor belt (5). A plurality of support columns (8) are fixedly installed between the base (7) and the top plate (2), a hydraulic press (1) is fixedly installed on the top wall of the top plate (2), and the telescopic end of the hydraulic press (1) is fixedly connected to an upper mold (9), a connecting rod is fixedly connected between the telescopic end of the hydraulic press (1) and a first connecting rod (4), a crawler transmission mechanism (18) is installed at one end of the first connecting rod (4), and a pushing mechanism (10) is installed at the other end of the first connecting rod (4), and a braking mechanism (12) is installed on one side of the first connecting rod (4); The electromagnetic adsorption component (15) comprises an adsorption seat (151), a telescopic rod (152), a first spring (153), a conductive head (154), a power block (155) and a cushion block (156); the first spring (153) is installed between one end of the conductive head (154) and the inner wall of the lower mold (16); the power block (155) is installed on one side of the inner wall of the lower mold (16), and the power block (155) is electrically connected to the hydraulic press (1); the side of the conductive head (154) passes through the cushion block (156) installed at the bottom end of the telescopic rod (152); the top end of the telescopic rod (152) is fixedly connected to the bottom of the adsorption seat (151); and an electromagnet is installed inside the adsorption seat (151), and the electromagnet is electrically connected to the conductive head (154); The pushing mechanism (10) comprises a third connecting rod (101), a first gear (102), a first bevel gear (103), a second gear (104), a fourth connecting rod (105) and an L-shaped pushing block (106); a first rack is installed on one side of the third connecting rod (101); the first rack is meshed with the first gear (102); the first gear (102) is connected to the second bevel gear through a connecting rod; the second bevel gear is meshed with the first bevel gear (103); the first bevel gear (103) and the second gear (104) are connected through a connecting rod, and the side surface of the connecting rod is connected to the center of the second gear (104); the second gear (104) and the second rack installed on the fourth connecting rod (105) are meshed with each other; one end of the fourth connecting rod (105) is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to one side of the top of the L-shaped pushing block (106); The brake mechanism (12) comprises a fifth linkage rod (121), a connecting rod (122), a friction block (123), a third spring (124), a sliding cavity (125) and a fixed head (126); one end of the fifth linkage rod (121) is fixedly connected to the top of the sliding cavity (125); the inner wall of the sliding cavity (125) is slidably connected to the side of the third protrusion; a third spring (124) is installed between the sliding cavity (125) and the third protrusion; the bottom of the third protrusion is fixedly connected to the top of the connecting rod (122); the other end of the connecting rod (122) is fixedly connected to the top of the fixed head (126); and the friction block (123) is fixedly installed on the bottom of the fixed head (126).

2. The arc-shaped sheet metal workpiece stamping die according to claim 1, characterized in that: The material transport assembly (17) comprises a supporting plate (171), a connecting head (172), a second spring (173), a support plate (174) and a rubber belt (175); a second protrusion is fixedly connected to one side of the bottom of the support plate (174); one side of the support plate (174) is connected to the side of the supporting plate (171) via a pin; a second spring (173) is installed between the supporting plate (171) and the second protrusion; a connecting head (172) is installed on one side of the supporting plate (171); and a rubber belt (175) is connected between two groups of supporting plates (174) relative to each other.

3. The arc-shaped sheet metal workpiece stamping die according to claim 1, characterized in that: The crawler drive mechanism (18) comprises a ratchet bar (181), a one-way bearing (182), a ratchet wheel (183), a roller (184) and a second connecting rod (185); a ratchet bar (181) is installed on one side of the bottom of the second connecting rod (185); the ratchet bar (181) and the ratchet wheel (183) are meshed with each other; a one-way bearing (182) is installed on the inner wall of the ratchet wheel (183); a roller is fixedly installed inside the roller (184); and the inner wall of the one-way bearing (182) is movably connected to one end of the roller.

4. The arc-shaped sheet metal workpiece stamping die according to claim 1, characterized in that: A chain (11) is installed inside the conveyor belt (5).

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