A punching device for automobile parts production

Abstract

The utility model belongs to the technical field of automobile parts processing, and discloses a punching device for automobile parts production; it comprises a punch and a manipulator arranged at the top of a processing table, the punch is installed at the output end of the manipulator, a punching plate is fixedly connected to the inside of the processing table, an aluminum alloy sheet is placed on the surface of the punching plate, a fixing plate is fixedly connected to the outside of the processing table, a support plate is fixedly connected to the top of the fixing plate, and a cylinder is installed at the top of the support plate. Through the structural design of the buffer mechanism and the cooling pressure mechanism, the device realizes that the operation of the buffer mechanism will first drive the extrusion sheet to extrude the aluminum alloy sheet before the punch contacts the aluminum alloy sheet, and fix the aluminum alloy sheet, and when the buffer mechanism is in operation, it will also drive the cooling pressure mechanism to operate, and spray the internal coolant through the guide pipe to the contact position between the punch and the aluminum alloy sheet, thereby reducing the heat generated by the friction between the punch and the aluminum alloy sheet.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, and more specifically, to a punching device for automobile parts production. Background Art

[0002] Auto parts refer to the various units that make up the entire car and the products that serve the car. With the rapid development of the automobile industry, the demand for the production of auto parts is increasing. Auto parts include but are not limited to aluminum alloy sheets, and the punching process is the key link in the manufacturing of parts.

[0003] Existing punching devices are mostly composed of a punching table, a punching plate, a cylinder, a manipulator and a punch, and their working principle is as follows: an aluminum alloy sheet is placed on the punching plate inside the punching table so that the middle of the aluminum alloy sheet is in a suspended state, and the cylinder is started. When the cylinder is running, it drives its output end installed on the manipulator to move downward. The manipulator can change the angle of the punch. The downward movement of the manipulator will drive the punch to move downward synchronously. Under the action of the impact force generated by the downward movement, the punch contacts the surface of the aluminum alloy sheet and applies pressure, so that holes or protrusions are formed on the aluminum alloy sheet, thereby completing the punching process of the aluminum alloy sheet.

[0004] The existing punching method often adopts an operation mode in which the punch is in direct contact with the aluminum alloy sheet. Although this method is simple and direct, long-term practice has shown that it leads to friction problems that cannot be ignored. During the punching process, the friction between the punch and the aluminum alloy sheet not only generates a large amount of heat, which significantly increases the working environment temperature, but also causes serious wear on the surface of the punch. This wear not only reduces the service life of the punch, but also invisibly affects the punching accuracy and overall quality, posing a potential threat to the manufacturing accuracy and performance stability of automotive accessories. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a punching device for producing automobile parts.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching device for automobile parts production, comprising a punch and a manipulator arranged at the top of a processing table, the punch is installed at the output end of the manipulator, a punching plate is fixedly connected to the inside of the processing table, an aluminum alloy sheet is placed on the surface of the punching plate, a fixing plate is fixedly connected to the outside of the processing table, a support plate is fixedly connected to the top of the fixing plate, a cylinder is installed at the top of the support plate, the output end of the cylinder passes through the support plate, and the output end of the cylinder is fixedly connected to the manipulator, and also includes:

[0007] A connecting plate, the connecting plate is fixedly connected to the outside of the manipulator, and a baffle is bolted to a side of the connecting plate away from the manipulator;

[0008] Extrusion sheets, wherein four groups of extrusion sheets are arranged in a circular array at the top of the aluminum alloy sheet, a piston rod is fixedly connected to one side of the four groups of extrusion sheets away from the punching plate, and a buffer mechanism matched with the baffle is arranged on the outer side of the piston rod;

[0009] The guide tubes are provided with four groups, and the four groups of guide tubes are arranged in a circular array on the periphery of the piston rod. The periphery of the guide tubes is provided with a cooling pressure mechanism matched with the buffer mechanism.

[0010] Furthermore, the buffer mechanism includes a circular plate, a piston tube, a piston plate, a first spring, a liquid storage ring, a limit frame and a pair of second springs, the circular plate is slidably connected to four groups of piston rods, the piston tube is fixedly connected to the side of the circular plate away from the extrusion plate, the piston plate is slidably connected to the inside of the piston tube, the side of the piston plate close to the extrusion plate is fixedly connected to the piston rod, one end of the first spring is fixedly connected to the side of the piston plate away from the extrusion plate, one end of the first spring away from the piston plate is fixedly connected to the top of the inner wall of the piston tube, the liquid storage ring is fixedly connected to the top of the piston tube, the limit frame is fixedly connected to the outside of the liquid storage ring, the limit frame is slidably connected to the fixed plate, and the two ends of a pair of second springs are respectively fixedly connected to the support plate and the limit frame.

[0011] Furthermore, the cooling pressure mechanism includes a one-way air valve, a liquid inlet and a pressure valve, the one-way air valve is installed on the outside of the piston tube, the liquid inlet is fixedly connected to the top of the liquid storage ring, the liquid storage ring and the interior of the piston tube are connected, and the pressure valve is installed inside the guide tube.

[0012] Furthermore, four groups of the first springs are provided, and the four groups of the first springs are arranged in a circular array on the top of the piston plate.

[0013] Furthermore, a plurality of groups of thread grooves are provided on the outer side of the connecting plate, and the plurality of groups of thread grooves are arranged in a linear array on the outer side of the connecting plate.

[0014] The technical effects and advantages of the punching device for automobile parts production of the utility model are as follows:

[0015] Through the structural design of the buffer mechanism and the cooling pressure mechanism, it is achieved that when the buffer mechanism is in operation, it will first drive the extrusion sheet to extrude the aluminum alloy sheet to fix the aluminum alloy sheet before the punch contacts the aluminum alloy sheet, and when the buffer mechanism is in operation, it will also drive the cooling pressure mechanism to operate, and spray the internal coolant through the guide pipe to the contact position between the punch and the aluminum alloy sheet, thereby reducing the heat generated by friction between the punch and the aluminum alloy sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the fixing plate, the supporting plate and the second spring in the utility model.

[0018] Figure 3 It is a schematic diagram of the connecting plate and baffle structure in the utility model.

[0019] Figure 4 It is a cross-sectional schematic diagram of the circular plate, the piston tube and the liquid storage ring in the utility model.

[0020] Figure 5 It is a schematic diagram of the guide tube and the first spring structure in the utility model.

[0021] In the figure:

[0022] 1. Processing table; 2. Punch; 3. Manipulator; 4. Punching plate; 5. Fixed plate; 6. Support plate; 7. Cylinder; 8. Connecting plate; 9. Baffle; 10. Extrusion plate; 11. Piston rod; 12. Guide tube; 13. Round plate; 14. Piston tube; 15. Piston plate; 16. First spring; 17. Liquid storage ring; 18. Limiting frame; 19. Second spring; 20. One-way air valve; 21. Liquid inlet; 22. Threaded groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 As shown, a punching device for automobile parts production includes a punch 2 and a manipulator 3 arranged at the top of a processing table 1, the punch 2 is installed at the output end of the manipulator 3, a punching plate 4 is fixedly connected to the inside of the processing table 1, an aluminum alloy sheet is placed on the surface of the punching plate 4, a fixing plate 5 is fixedly connected to the outside of the processing table 1, a support plate 6 is fixedly connected to the top of the fixing plate 5, a cylinder 7 is installed on the top of the support plate 6, the output end of the cylinder 7 passes through the support plate 6, and the output end of the cylinder 7 is fixedly connected to the manipulator 3, and also includes:

[0025] A connecting plate 8, the connecting plate 8 is fixedly connected to the outer side of the manipulator 3, and a baffle 9 is bolted to a side of the connecting plate 8 away from the manipulator 3;

[0026] Extrusion sheets 10, four groups of extrusion sheets 10 are provided and the four groups of extrusion sheets 10 are arranged in a circular array at the top of the aluminum alloy sheet, and a piston rod 11 is fixedly connected to one side of the four groups of extrusion sheets 10 away from the punching plate 4, and a buffer mechanism cooperating with the baffle 9 is provided on the outer side of the piston rod 11;

[0027] The guide tubes 12 are provided in four groups and the four groups of guide tubes 12 are arranged in a circular array on the periphery of the piston rod 11 . The periphery of the guide tubes 12 is provided with a temperature reduction pressure mechanism matched with the buffer mechanism.

[0028] The existing punching method often adopts an operation mode in which the punch 2 is in direct contact with the aluminum alloy sheet. Although this method is simple and direct, long-term practice has shown that it leads to friction problems that cannot be ignored. During the punching process, the friction between the punch 2 and the aluminum alloy sheet will not only generate a large amount of heat, which significantly increases the working environment temperature, but also causes serious wear on the surface of the punch 2. This wear not only reduces the service life of the punch 2, but also invisibly affects the punching accuracy and overall quality, posing a potential threat to the manufacturing accuracy and performance stability of automotive accessories. When this embodiment is in use, the aluminum alloy sheet is placed on the punching plate 4 inside the processing table 1, so that the middle of the aluminum alloy sheet is in a suspended state, and the cylinder 7 is started. When the cylinder 7 is running, it drives its output end installed on the manipulator 3 to move downward, and the manipulator 3 can change the angle of the punch (the manipulator 3 is a prior art, and the technology is mature, so it will not be elaborated in the article). When the manipulator 3 moves downward, it will drive the punch 2 to move downward synchronously, and when the manipulator 3 moves downward, it will also drive the connecting plate 8 to move downward, and the connecting plate 8 moving downward will drive the baffle 9 to move downward, so that its buffer mechanism will operate, and when the buffer mechanism operates, it will first drive the extrusion plate 10 to extrude the aluminum alloy sheet before the punch 2 contacts the aluminum alloy sheet, fix the aluminum alloy sheet, and avoid the aluminum alloy sheet from shaking during punching, and when the buffer mechanism is operating, it will also drive the cooling pressure mechanism to operate. When the cooling pressure mechanism is operating, the internal coolant will be sprayed through the guide pipe 12 on the contact position between the punch 2 and the aluminum alloy sheet, thereby achieving the effect of cooling and lubrication, reducing the heat generated by friction between the punch 2 and the aluminum alloy sheet, and finally, under the action of the impact force generated by the downward movement, the punch 2 contacts the surface of the aluminum alloy sheet and applies pressure, so that holes or protrusions are formed on the aluminum alloy sheet, thereby completing the punching process of the aluminum alloy sheet.

[0029] like Figure 2 , Figure 4 and Figure 5As shown, the buffer mechanism includes a circular plate 13, a piston tube 14, a piston plate 15, a first spring 16, a liquid storage ring 17, a limit frame 18 and a pair of second springs 19, the circular plate 13 is slidably connected to the four groups of piston rods 11, the piston tube 14 is fixedly connected to the side of the circular plate 13 away from the extrusion plate 10, the piston plate 15 is slidably connected to the inside of the piston tube 14, the side of the piston plate 15 close to the extrusion plate 10 is fixedly connected to the piston rod 11, one end of the first spring 16 is fixedly connected to the side of the piston plate 15 away from the extrusion plate 10, one end of the first spring 16 away from the piston plate 15 is fixedly connected to the top of the inner wall of the piston tube 14, the liquid storage ring 17 is fixedly connected to the top of the piston tube 14, the limit frame 18 is fixedly connected to the outside of the liquid storage ring 17, the limit frame 18 is slidably connected to the fixed plate 5, and the two ends of a pair of second springs 19 are respectively fixedly connected to the support plate 6 and the limit frame 18.

[0030] When the baffle plate 9 moves downward, the liquid storage ring 17 is squeezed, so that the liquid storage ring 17 drives the limit frame 18 to move downward along the fixed plate 5, and when the limit frame 18 moves downward, it will pull the second spring 19, so that the second spring 19 is deformed and elastic potential energy is generated, and the downward movement of the liquid storage ring 17 will drive the piston tube 14 to move downward, and the piston tube 14 moves downward and then drives the piston rod 11 to move downward through the piston plate 15, and the downward movement of the piston rod 11 will drive the extrusion sheet 10 to move downward. At this time, the piston rod 11 contacts the aluminum alloy sheet, and the piston tube 14 is still in a downward state, and the extrusion sheet 10 will drive the piston plate 15 to move upward through the piston rod 11 to squeeze the first spring 16, so that the first spring 16 is deformed and generates elastic potential energy, and the counter-pushing force of the first spring 16 can force the extrusion sheet 10 to always be in a fitted extrusion state with the aluminum alloy sheet, thereby fixing the aluminum alloy sheet and preventing shaking. When the baffle plate 9 moves up and disengages from the extrusion of the liquid storage ring 17, the extrusion force exerted on the second spring 19 ends, releasing the elastic potential energy, and driving the liquid storage ring 17 to reset through the limiting frame 18. The reset of the liquid storage ring 17 will drive the piston tube 14 to move up and reset. As the piston tube 14 moves up, the first spring 16 gradually releases its elastic potential energy, pushing the piston plate 15 to reset. The reset of the piston plate 15 then drives the extrusion sheet 10 to reset through the piston rod 11.

[0031] like Figure 4 and Figure 5 As shown, the cooling pressure mechanism includes a one-way air valve 20, a liquid inlet 21 and a pressure valve. The one-way air valve 20 is installed on the outside of the piston tube 14, the liquid inlet 21 is fixedly connected to the top of the liquid storage ring 17, the liquid storage ring 17 and the interior of the piston tube 14 are interconnected, and the pressure valve is installed inside the guide tube 12.

[0032] Cooling liquid can be added to the inside of the liquid storage ring 17 through the liquid inlet 21, and the cooling liquid in the liquid storage ring 17, under the important effect, falls into the inside of the piston tube 14, and when the piston plate 15 moves upward, the internal air of the piston tube 14 will be squeezed. At this time, the air pressure inside the piston tube 14 and above the piston plate 15 increases, and the pressure valve inside the guide tube 12 opens. The cooling liquid inside the piston tube 14 enters the inside of the guide tube 12, and then flows from the inside of the guide tube 12 to the contact point between the punch 2 and the aluminum alloy sheet. When the piston plate 15 moves downward, the piston plate 15 stops squeezing the air inside the piston tube 14, and the pressure inside the piston tube 14 stops increasing. The pressure valve inside the guide tube 12 is closed again to avoid the loss of cooling liquid. When the piston plate 15 moves downward, air enters the inside of the piston tube 14 from the one-way air valve 20. The setting of the one-way air valve 20 allows the air to only enter the inside of the piston tube 14 and cannot be discharged.

[0033] like Figure 4 and Figure 5 As shown, four groups of first springs 16 are provided, and the four groups of first springs 16 are arranged in a circular array on the top of the piston plate 15 .

[0034] Four groups of first springs 16 are provided, so that when the four groups of first springs 16 are deformed and release elastic potential energy, the process will drive the coolant inside the piston tube 14 to shake, thereby avoiding the precipitation of particles in the coolant. The provision of four groups of first springs 16 enables the first springs 16 to shake the coolant more comprehensively and with better effect.

[0035] like Figure 2 and Figure 3 As shown, four groups of first springs 16 are provided, and the four groups of first springs 16 are arranged in a circular array on the top of the piston plate 15 .

[0036] The thread grooves 22 are arranged in multiple groups, and the height of the baffle 9 can be adjusted by bolts so that the baffle 9 can match the thread grooves 22 of different heights, thereby adjusting the time required for the extruded sheet 10 to contact the aluminum alloy sheet, and further adjusting the amount of coolant sprayed inside the piston tube 14.

[0037] Working principle: The aluminum alloy sheet is placed on the punching plate 4 inside the processing table 1, so that the middle of the aluminum alloy sheet is in a suspended state, and the cylinder 7 is started. When the cylinder 7 is running, it drives the output end installed on the manipulator 3 to move downward. The manipulator 3 can change the angle of the punch (the manipulator 3 is a prior art, and the technology is mature, so it will not be elaborated in the article). When the manipulator 3 moves downward, it will drive the punch 2 to move downward synchronously, and when the manipulator 3 moves downward, it will also drive the connecting plate 8 to move downward, and the connecting plate 8 will move downward. The baffle 9 will move downward, so that its buffer mechanism will operate, and the operation of the buffer mechanism will cause the punch 2 to contact the aluminum alloy Before punching the sheet, the extrusion sheet 10 is first driven to extrude the aluminum alloy sheet to fix the aluminum alloy sheet to prevent the aluminum alloy sheet from shaking during punching. When the buffer mechanism is in operation, the cooling pressure mechanism is also driven to operate. When the cooling pressure mechanism is in operation, the internal coolant is sprayed through the guide pipe 12 to the contact position between the punch 2 and the aluminum alloy sheet, thereby achieving the effect of cooling and lubrication, reducing the heat generated by the friction between the punch 2 and the aluminum alloy sheet. Finally, under the action of the impact force generated by the downward movement, the punch 2 contacts the surface of the aluminum alloy sheet and applies pressure, so that the aluminum alloy sheet forms a hole or a bulge, thereby completing the punching process of the aluminum alloy sheet;

[0038] When the baffle plate 9 moves downward, the liquid storage ring 17 is squeezed, so that the liquid storage ring 17 drives the limit frame 18 to move downward along the fixed plate 5, and when the limit frame 18 moves downward, it will pull the second spring 19, so that the second spring 19 is deformed and elastic potential energy is generated, and the downward movement of the liquid storage ring 17 will drive the piston tube 14 to move downward, and the piston tube 14 moves downward and then drives the piston rod 11 to move downward through the piston plate 15, and the downward movement of the piston rod 11 will drive the extrusion sheet 10 to move downward. At this time, the piston rod 11 contacts the aluminum alloy sheet, and the piston tube 14 is still in a downward state, and the extrusion sheet 10 will drive the piston plate 15 to move upward through the piston rod 11 to squeeze the first spring 16, so that the first spring 16 is deformed and generates elastic potential energy, and the counter-pushing force of the first spring 16 can force the extrusion sheet 10 to always be in a state of fitting and extrusion with the aluminum alloy sheet, thereby fixing and limiting the aluminum alloy sheet to prevent shaking. When the baffle plate 9 moves up and disengages from the extrusion of the liquid storage ring 17, the extrusion force exerted on the second spring 19 ends, and the elastic potential energy is released, and the liquid storage ring 17 is driven to reset through the limiting frame 18, and the reset of the liquid storage ring 17 will drive the piston tube 14 to move up and reset. As the piston tube 14 moves up, the first spring 16 gradually releases the elastic potential energy, pushing the piston plate 15 to reset, and the piston plate 15 resets and then drives the extrusion sheet 10 to reset through the piston rod 11;

[0039] The coolant can be added to the liquid storage ring 17 through the liquid inlet 21, and the coolant in the liquid storage ring 17 falls into the piston tube 14 under the action of the piston plate 15. When the piston plate 15 moves upward, the internal air of the piston tube 14 is squeezed. At this time, the air pressure inside the piston tube 14 and above the piston plate 15 increases, and the pressure valve inside the guide tube 12 opens. The coolant inside the piston tube 14 enters the guide tube 12 and then flows from the guide tube 12 to the contact point between the punch 2 and the aluminum alloy sheet. When the piston plate 15 moves downward, the piston plate 15 stops squeezing the air inside the piston tube 14, and the pressure inside the piston tube 14 stops increasing. The pressure valve inside the guide tube 12 closes again to avoid the loss of coolant. When the piston plate 15 moves downward, air enters the piston tube 14 from the one-way air valve 20. The setting of the one-way air valve 20 allows the air to only enter the piston tube 14 and cannot be discharged.

[0040] The first springs 16 are provided in four groups, so that when the four groups of first springs 16 are deformed and release elastic potential energy, the process will drive the coolant inside the piston tube 14 to shake, thereby avoiding the precipitation of particles in the coolant. The four groups of first springs 16 are provided so that the first springs 16 shake the coolant more comprehensively and the effect is better.

[0041] The thread grooves 22 are arranged in multiple groups, and the height of the baffle 9 can be adjusted by bolts so that the baffle 9 can match the thread grooves 22 of different heights, thereby adjusting the time required for the extruded sheet 10 to contact the aluminum alloy sheet, and further adjusting the amount of coolant sprayed inside the piston tube 14.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A punching device for automobile parts production, comprising a punch (2) and a manipulator (3) arranged at the top of a processing table (1), wherein the punch (2) is installed at the output end of the manipulator (3), a punching plate (4) is fixedly connected to the inside of the processing table (1), an aluminum alloy sheet is placed on the surface of the punching plate (4), a fixing plate (5) is fixedly connected to the outside of the processing table (1), a support plate (6) is fixedly connected to the top of the fixing plate (5), a cylinder (7) is installed at the top of the support plate (6), the output end of the cylinder (7) passes through the support plate (6), and the output end of the cylinder (7) is fixedly connected to the manipulator (3), characterized in that: Also includes: A connecting plate (8), the connecting plate (8) is fixedly connected to the outer side of the manipulator (3), and a baffle (9) is bolted to a side of the connecting plate (8) away from the manipulator (3); Extrusion sheets (10), wherein four groups of the extrusion sheets (10) are arranged in a circular array at the top of the aluminum alloy sheet, a piston rod (11) is fixedly connected to one side of the four groups of extrusion sheets (10) away from the punching plate (4), and a buffer mechanism cooperating with the baffle (9) is arranged on the outer side of the piston rod (11); The flow guide tubes (12) are provided in four groups and the four groups of flow guide tubes (12) are arranged in a circular array on the periphery of the piston rod (11); a temperature reduction pressure mechanism matched with a buffer mechanism is provided on the periphery of the flow guide tubes (12).

2. The punching device for automobile parts production according to claim 1, characterized in that: The buffer mechanism comprises a circular plate (13), a piston tube (14), a piston plate (15), a first spring (16), a liquid storage ring (17), a limit frame (18) and a pair of second springs (19); the circular plate (13) is slidably connected to the four groups of piston rods (11); the piston tube (14) is fixedly connected to the side of the circular plate (13) away from the extrusion plate (10); the piston plate (15) is slidably connected to the inside of the piston tube (14); the side of the piston plate (15) close to the extrusion plate (10) is fixedly connected to the piston rod (11). One end of the first spring (16) is fixedly connected to the side of the piston plate (15) away from the extrusion plate (10), and one end of the first spring (16) away from the piston plate (15) is fixedly connected to the top of the inner wall of the piston tube (14). The liquid storage ring (17) is fixedly connected to the top of the piston tube (14), and the limit frame (18) is fixedly connected to the outer side of the liquid storage ring (17). The limit frame (18) is slidably connected to the fixed plate (5), and the two ends of a pair of second springs (19) are respectively fixedly connected to the support plate (6) and the limit frame (18).

3. The punching device for automobile parts production according to claim 2, characterized in that: The temperature reduction pressure mechanism comprises a one-way air valve (20), a liquid inlet (21) and a pressure valve. The one-way air valve (20) is installed on the outside of the piston tube (14). The liquid inlet (21) is fixedly connected to the top of the liquid storage ring (17). The liquid storage ring (17) and the interior of the piston tube (14) are interconnected. The pressure valve is installed inside the guide tube (12).

4. The punching device for automobile parts production according to claim 3, characterized in that: Four groups of the first springs (16) are provided, and the four groups of the first springs (16) are arranged in a circular array on the top of the piston plate (15).

5. The punching device for automobile parts production according to claim 4, characterized in that: The outer side of the connecting plate (8) is provided with a plurality of groups of thread grooves (22), and the plurality of groups of thread grooves (22) are arranged in a linear array on the outer side of the connecting plate (8).

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