A multi-station hydraulic punch press

Abstract

The present invention discloses a multi-station hydraulic punching machine, which belongs to the technical field of mechanical equipment, and comprises a machine platform, a controller is arranged above the machine platform, and a plurality of hydraulic stamping mechanisms are arranged independently on both sides of the controller in sequence, and an electric control sensor is arranged in the hydraulic stamping mechanism; a hydraulic station and an electric control system are arranged below the machine platform, and the hydraulic station is connected to the hydraulic stamping mechanism through an oil pipe, and a hydraulic valve is arranged on the oil pipe; the controller, the electric control sensor, the electric control system and the hydraulic valve are electrically connected. The present invention can concentrate a plurality of hydraulic stamping mechanisms in one device for use, reduce the turnover time in the process of workpiece processing, save space, and improve production and processing efficiency; and a plurality of hydraulic stamping mechanisms can work independently, and are easy to operate and use.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a multi-station hydraulic punching machine. Background Art

[0002] Hydraulic punching machine is a common mechanical equipment in machining workshops. It uses hydraulic press as the power source and can realize automated stamping operations.

[0003] Traditional hydraulic punch presses are mostly single-station, and can only perform stamping operations on a single workpiece, so the work efficiency is low. There are also designs of multi-station hydraulic punch presses in the prior art. For example, in the Chinese invention patent application CN108637070A (a counter-punch multi-station hydraulic punch press), a rotary module is set in the hydraulic punch press, and the fixed molds of different specifications can be rotated to the stamping position of the stamping module by rotating the turntable of the rotary module, so as to realize multi-station continuous stamping. For another example, in the Chinese invention patent application CN107175268A (a new type of CNC multi-station hydraulic punch press with multi-sided bending), multiple stations are set on the punch press body, and a bending device is set on each station. The positioning column on the chain can drive the workpiece to move, and automatic continuous operation is realized in multiple bending devices. However, the multi-station hydraulic punch presses in the above two patent technologies can only realize the stamping operation of the same type of workpieces. For workpieces with different structures or operations with different stamping operation directions, it is difficult to realize them on one device, and the equipment structure is complex and the production cost is high. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-station hydraulic punching machine to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above object, the present invention discloses a multi-station hydraulic punching machine, comprising a machine platform, a controller is arranged above the machine platform, a plurality of hydraulic punching mechanisms are independently arranged on both sides of the controller, and an electric control sensor is arranged in the hydraulic punching mechanism;

[0006] A hydraulic station and an electric control system are provided under the machine platform, the hydraulic station is connected to the hydraulic stamping mechanism through an oil pipe, and a hydraulic valve is provided on the oil pipe;

[0007] The controller, the electronically controlled sensor, the electronically controlled system and the hydraulic valve are electrically connected.

[0008] Furthermore, the oil pipe includes a main oil pipe, a first oil pipe and a second oil pipe, the hydraulic valve is a three-way hydraulic valve, one end of the main oil pipe is connected to the hydraulic station, and the other end is connected to the inlet of the hydraulic valve; one end of the first oil pipe and one end of the second oil pipe are respectively connected to the two outlets of the hydraulic valve, and the other end of the first oil pipe and the other end of the second oil pipe are respectively connected to the hydraulic stamping mechanism.

[0009] Furthermore, the structure of the machine is L-shaped, and the controller is arranged in the center of the machine.

[0010] Furthermore, the hydraulic station includes a hydraulic oil tank and an energy storage tank which are connected to each other, and an air pressure valve is provided on the outside of the energy storage tank, and the air pressure valve is electrically connected to the electronic control system.

[0011] Furthermore, a cooling fan and a protective net are independently provided on the outside of the hydraulic station.

[0012] Furthermore, a material dropping hole is opened on the table top of the machine platform below the hydraulic stamping mechanism, and a waste collection box is provided below the machine platform, and the material dropping hole is communicated with the waste collection box.

[0013] Furthermore, the hydraulic stamping mechanism includes a vertical hydraulic stamping mechanism and a horizontal hydraulic stamping mechanism.

[0014] Further, the vertical hydraulic stamping mechanism includes a first base, a first carrier arranged above the first base, and a vertical stamping module;

[0015] A first protrusion is provided above the first carrier, one end of the first protrusion is installed above the first base through a first mounting block, a gap is reserved between the first carrier and the first protrusion, a first punching hole is provided on the first carrier, and a second punching hole is provided on the first protrusion, and the positions of the first punching hole, the second punching hole and the blanking hole correspond to each other and are connected to each other;

[0016] The electric control sensor is installed above the first base, and the sensing part of the electric control sensor is located above the first protrusion.

[0017] Further, the vertical stamping module includes a mounting frame arranged outside the first carrier above the first base, a first oil cylinder is provided on the top of the mounting frame, a first stamping block is connected below the first oil cylinder, the first stamping block is slidably connected to the inner side wall of the mounting frame, and a first stamping head and a stamping buffer mechanism are provided at the bottom of the first stamping block;

[0018] A stamping baffle is provided below the first stamping head, and the stamping baffle is detachably fixedly installed inside the mounting frame; a baffle through hole is opened on the stamping baffle, and the positions of the first stamping head, the baffle through hole, the first stamping hole and the second stamping hole correspond to each other, have the same structure, and are connected to the blanking hole.

[0019] Furthermore, the horizontal hydraulic stamping mechanism includes a second base, a second carrier arranged above the second base, a groove is opened in the middle of the second carrier, and a clamping block is provided at the bottom of the groove;

[0020] On the outer side of the second carrier, a second oil cylinder and a third oil cylinder are respectively provided on both sides of the groove, and a third punching hole and a fourth punching hole are respectively provided on the side walls of the second carrier on both sides of the groove, and the second oil cylinder and the third oil cylinder are respectively connected to a second punching head and a third punching head through the third punching hole and the fourth punching hole;

[0021] An extension plate is respectively provided on the second carrier at the outside of both ends of the groove, and the extension plate is flush with the bottom of the groove;

[0022] A fifth punching hole is provided on the second base below both sides of the groove, and the third punching hole, the fourth punching hole and the fifth punching hole are all connected to the blanking holes on the machine platform.

[0023] Compared with the prior art, the multi-station hydraulic punch press of the present invention has the following advantages:

[0024] (1) The multi-station hydraulic punching machine of the present invention can integrate multiple hydraulic punching mechanisms into one device for use, thereby reducing the turnover time during workpiece processing, saving space, and improving production and processing efficiency.

[0025] (2) The multi-station hydraulic punch press of the present invention adopts a hydraulic station for centralized pressure supply and is equipped with an energy storage tank to reduce energy consumption.

[0026] (3) The multiple hydraulic punching mechanisms in the multi-station hydraulic punching machine of the present invention are independently arranged and can work independently, and are easy to operate and use.

[0027] (4) The multi-station hydraulic punch press of the present invention has a simple mold frame and is very convenient to operate and maintain, thereby reducing the investment in equipment and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 : Schematic diagram of the first three-dimensional structure of the multi-station hydraulic punch press.

[0029] Figure 2 : Schematic diagram of the second three-dimensional structure of the multi-station hydraulic punch press.

[0030] Figure 3 : Top view of the multi-station hydraulic punch press.

[0031] Figure 4 : Schematic diagram of the first three-dimensional structure of the vertical hydraulic stamping mechanism.

[0032] Figure 5: Schematic diagram of the second three-dimensional structure of the vertical hydraulic stamping mechanism.

[0033] Figure 6 : Schematic diagram of the three-dimensional structure of the vertical hydraulic stamping mechanism after the workpiece is installed.

[0034] Figure 7 : Schematic diagram of the first three-dimensional structure of the horizontal hydraulic stamping mechanism.

[0035] Figure 8 : Schematic diagram of the second three-dimensional structure of the horizontal hydraulic stamping mechanism.

[0036] Fig. 9 : Schematic diagram of the three-dimensional structure of the horizontal hydraulic stamping mechanism after the workpiece is installed.

[0037] Fig.10 : Schematic diagram of the structure of the workpiece after processing.

[0038] Among them, 1. machine; 2. controller; 3. electronic control sensor; 4. hydraulic station; 5. electronic control system; 6. hydraulic valve; 7. energy storage tank; 8. air pressure valve; 9. cooling fan; 10. protective net; 11. waste collection box; 12. vertical hydraulic stamping mechanism; 13. horizontal hydraulic stamping mechanism; 14. first base; 15. first carrier; 16. first protrusion; 17. first mounting block; 18. mounting frame; 19. first oil cylinder; 20. first punching block; 21. first punching head; 22. spring; 23. punching baffle; 24. second base; 25. second carrier; 26. groove; 27. block; 28. second oil cylinder; 29. ​​third oil cylinder; 30. extension plate; 31. processed workpiece; 32. concave hole; 33. fifth punching hole. DETAILED DESCRIPTION

[0039] The multi-station hydraulic punch press of the present invention is described in detail below in conjunction with the accompanying drawings.

[0040] like Figure 1-9 As shown, a schematic diagram of the structure of a multi-station hydraulic punch press at different angles is given.

[0041] The multi-station hydraulic punching machine includes a machine platform 1, which is an L-shaped structure. A controller 2 is provided in the center above the machine platform 1. Above the machine platform 1, multiple hydraulic stamping mechanisms are independently provided in sequence on both sides of the controller 2. An electric control sensor 3 is provided in the hydraulic stamping mechanism; specifically, the electric control sensor 3 is a pressure sensor.

[0042] The L-shaped design of the machine 1 can shorten the transfer distance between workstations, making it easier for workers to operate, thereby improving production efficiency.

[0043] A hydraulic station 4 and an electronic control system 5 are provided under the machine 1. The hydraulic station 4 is connected to the hydraulic stamping mechanism through an oil pipe, and a hydraulic valve 6 is provided on the oil pipe. Specifically, the oil pipe includes a main oil pipe, a first oil pipe and a second oil pipe. The hydraulic valve 6 is a three-way hydraulic valve. One end of the main oil pipe is connected to the hydraulic station 4, and the other end is connected to the inlet of the hydraulic valve 6. One end of the first oil pipe and one end of the second oil pipe are respectively connected to the two outlets of the hydraulic valve 6, and the other end of the first oil pipe and the other end of the second oil pipe are respectively connected to the hydraulic stamping mechanism.

[0044] The controller 2, the electric control sensor 3, the electric control system 5 and the hydraulic valve 6 are electrically connected to realize automatic electric control of the hydraulic stamping mechanism.

[0045] The hydraulic station 4 arranged below the machine 1 includes a hydraulic oil tank and an energy storage tank 7 which are interconnected. An air pressure valve 8 is arranged outside the energy storage tank 7. The air pressure valve 8 is electrically connected to the electronic control system 5. The energy storage tank 7 is used to store and collect excess pressure. Because the upper and lower pressure limits are set in the system, when the pressure of the energy storage tank 7 reaches the set upper limit, the oil pump in the hydraulic station 4 will stop working. The kinetic energy required by the hydraulic stamping mechanism comes from the energy storage tank 7. Although the oil pump does not work, the pressure in the energy storage tank 7 can continue to provide kinetic energy. The oil pump will restart when the system pressure is lower than the set lower limit. The hydraulic station 4 generates heat when working. Two cooling fans 9 are newly arranged on the periphery of the hydraulic station 4 to discharge hot air and ensure the normal working environment of the hydraulic station 4. A protective net 10 is also used as an outer cover to facilitate heat dissipation and prevent accidental contact by personnel.

[0046] Below the hydraulic stamping mechanism, a blanking hole is opened on the table top of the machine table 1 , and a waste material collecting box 11 is provided below the machine table 1 , and the blanking hole is communicated with the waste material collecting box 11 .

[0047] The hydraulic stamping mechanism includes a vertical hydraulic stamping mechanism 12 and a horizontal hydraulic stamping mechanism 13. In this embodiment, three vertical hydraulic stamping mechanisms 12 are provided on one side of the controller 2 above the machine platform, and one vertical hydraulic stamping mechanism 12 and one horizontal hydraulic stamping mechanism 13 are provided on the other side.

[0048] The structures and working principles of the multiple vertical hydraulic stamping mechanisms 12 are similar, and only the structure of one of the vertical hydraulic stamping mechanisms 12 is described in detail here.

[0049] Among them, the vertical hydraulic stamping mechanism 12 includes a first base 14, a first carrier 15 arranged above the first base 14 and a vertical stamping module; a first protrusion 16 is provided above the first carrier 15, one end of the first protrusion 16 is installed above the first carrier 15 through a first mounting block 17, a gap is reserved between the first carrier 15 and the first protrusion 16, a first stamping hole is provided on the first carrier 15, and a second stamping hole is provided on the first protrusion 16, and the positions of the first stamping hole, the second stamping hole and the blanking hole correspond and are connected to each other.

[0050] The electric control sensor 3 is installed above the first base 14 , and the sensing portion of the electric control sensor 3 is located above the first protrusion 16 .

[0051] The vertical stamping module includes a mounting frame 18 disposed outside the first carrier 15 above the first base 14, a first oil cylinder 19 is disposed on the top of the mounting frame 18, a first stamping block 20 is connected below the first oil cylinder 19, the first stamping block 20 is slidably connected to the inner side wall of the mounting frame 18, and a first stamping head 21 and a stamping buffer mechanism are disposed at the bottom of the first stamping block 20;

[0052] Specifically, a notch is provided on the side of the first punching block 20 , and a ridge is provided on the inner side wall of the mounting frame 18 . The notch and the ridge are matched in structure, so that the first punching block 20 can slide up and down along the ridge on the mounting frame 18 .

[0053] A stamping baffle 23 is provided below the first stamping head 21, and the stamping baffle 23 is detachably fixedly installed inside the mounting frame 18; a baffle through hole is opened on the stamping baffle 23, and the positions of the first stamping head 21, the baffle through hole, the first stamping hole and the second stamping hole correspond to each other, have the same structure, and are connected to the blanking hole.

[0054] The position of the stamping baffle 23 is adjustable. Specifically, the stamping baffle 23 is detachably fixed to the mounting frame 18 by fastening connectors such as bolts or fastening screws. When the position of the stamping baffle 23 needs to be adjusted, it is only necessary to loosen the fastening connector, adjust the position, and then tighten it. The position of the stamping baffle 23 determines the depth of the downward stamping of the first stamping head 21. The lower the position of the stamping baffle 23, the deeper the stamping depth, and vice versa.

[0055] The stamping buffer mechanism is a spring 22 arranged on the outside of the first stamping head 21. One end of the spring 22 is connected to the first stamping block 20, and the other end is connected to the stamping baffle 23. During the stamping process, the first stamping block 20 moves toward the stamping baffle 23, and the spring 22 can play a shock absorbing and buffering role.

[0056] The horizontal hydraulic stamping mechanism 13 includes a second base 24, a second carrier 25 disposed above the second base 24, a groove 26 is provided in the middle of the second carrier 25, a clamping block 27 is provided at the bottom of the groove 26; an electric control sensor 3 is provided on the side of the clamping block 27 in the groove 26, and the sensing part of the electric control sensor 3 is located above the clamping block 27;

[0057] On the outer side of the second carrier 25, a second oil cylinder 28 and a third oil cylinder 29 are respectively provided on both sides of the groove 26, and a third punching hole and a fourth punching hole are respectively provided on the side walls of the second carrier 25 on both sides of the groove 26, and the second oil cylinder 28 and the third oil cylinder 29 are respectively connected with the second punching head and the third punching head through the third punching hole and the fourth punching hole; a fifth punching hole 33 is provided on the second base 24 below both sides of the groove 26, and the third punching hole, the fourth punching hole, and the fifth punching hole 33 are all connected with the blanking hole on the machine table 1.

[0058] An extension plate 30 is respectively provided outside the two ends of the groove 26 on the second carrier 25 , and the extension plate 30 is flush with the bottom of the groove 26 .

[0059] like Fig.10 As shown, a schematic diagram of the structure of the workpiece 31 after processing is given. The workpiece 31 after processing is a tubular structure, and there are punching holes on the side and bottom of the tubular structure.

[0060] In actual production, the incoming material is a square tube workpiece, which can first be subjected to a vertical punching operation, and the workpiece is operated under the vertical hydraulic punching mechanism 12.

[0061] Start the controller 2, and the whole system starts to work. The workpiece is sleeved on the outside of the first protrusion 16. When the workpiece contacts the electronic control sensor 3, the electronic control system 5 sends a command to the hydraulic valve 6, and one outlet of the hydraulic valve 6 is opened. The hydraulic oil will be injected into the first oil cylinder 19 along the first oil pipe, pushing the cylinder piston to move downward, driving the first punching block 20 and the first punching head 21 to move downward to punch the workpiece. When the first punching block 20 moves downward to the punching baffle 23, it reaches the lowest position. At this time, the electronic control sensor 3 senses the pressure of the workpiece and transmits the signal to the electronic control system 5. The electronic control system 5 sends a command to the hydraulic valve 6 again, and the other outlet of the hydraulic valve 6 is opened. The hydraulic oil will be injected into the first oil cylinder 19 along the second oil pipe, pushing the cylinder piston to move upward, driving the first punching block 20 and the first punching head 21 to move upward back to the starting point, and the workpiece is taken out, thus completing the stamping process.

[0062] In this way, the workpiece completes different stamping processes at different workstations until the processing is completed.

[0063] When the workpiece is punched in the horizontal hydraulic punching mechanism 13, the workpiece should have completed the punching of the concave hole 32 in the middle area, and the workpiece is placed in the groove 26, so that the concave hole 32 in the middle area of ​​the workpiece is clamped on the outside of the clamping block 27, and the two ends can be directly placed on the extension plate 30 to further fix the position of the workpiece. Then, similar to the vertical punching process, the electronic control sensor 3, the electronic control system 5 and the hydraulic valve 6 work together to realize the horizontal punching operation.

[0064] During the punching process, the waste generated by punching will fall into the waste collection box 11 below the machine 1 along the blanking hole. After the waste is collected, the waste collection box 11 is taken out and the waste is poured out to continue collecting the waste.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-station hydraulic punching machine, characterized in that: It includes a machine platform, a controller is arranged above the machine platform, a plurality of hydraulic stamping mechanisms are independently arranged on both sides of the controller, and an electric control sensor is arranged in the hydraulic stamping mechanism; A hydraulic station and an electric control system are provided under the machine platform, the hydraulic station is connected to the hydraulic stamping mechanism through an oil pipe, and a hydraulic valve is provided on the oil pipe; The controller, the electronically controlled sensor, the electronically controlled system and the hydraulic valve are electrically connected; The hydraulic station comprises a hydraulic oil tank and an energy storage tank which are connected to each other, an air pressure valve is arranged on the outside of the energy storage tank, and the air pressure valve is electrically connected to the electric control system; The hydraulic stamping mechanism includes a vertical hydraulic stamping mechanism and a horizontal hydraulic stamping mechanism; The vertical hydraulic stamping mechanism comprises a first base, a first carrier arranged above the first base and a vertical stamping module; A first protrusion is provided above the first carrier, one end of the first protrusion is installed above the first base through a first mounting block, a gap is reserved between the first carrier and the first protrusion, a first punching hole is provided on the first carrier, and a second punching hole is provided on the first protrusion, and the positions of the first punching hole, the second punching hole and the blanking hole correspond to each other and are connected to each other; The electric control sensor is installed above the first base, and the sensing part of the electric control sensor is located above the first convex block; The vertical stamping module comprises a mounting frame arranged outside the first platform above the first base, a first oil cylinder is arranged on the top of the mounting frame, a first stamping block is connected below the first oil cylinder, the first stamping block is slidably connected to the inner side wall of the mounting frame, and a first stamping head and a stamping buffer mechanism are arranged at the bottom of the first stamping block; A stamping baffle is provided below the first stamping head, and the stamping baffle is detachably fixedly installed inside the mounting frame; a baffle through hole is provided on the stamping baffle, and the positions of the first stamping head, the baffle through hole, the first stamping hole and the second stamping hole correspond to each other, have the same structure, and are connected to the blanking hole; The horizontal hydraulic stamping mechanism includes a second base, a second carrier arranged above the second base, a groove is opened in the middle of the second carrier, and a clamping block is arranged at the bottom of the groove; On the outer side of the second carrier, a second oil cylinder and a third oil cylinder are respectively provided on both sides of the groove, and a third punching hole and a fourth punching hole are respectively provided on the side walls of the second carrier on both sides of the groove, and the second oil cylinder and the third oil cylinder are respectively connected to a second punching head and a third punching head through the third punching hole and the fourth punching hole; An extension plate is respectively provided on the second carrier at the outside of both ends of the groove, and the extension plate is flush with the bottom of the groove; A fifth punching hole is provided on the second base below both sides of the groove, and the third punching hole, the fourth punching hole and the fifth punching hole are all connected to the blanking holes on the machine platform.

2. The multi-station hydraulic punch press according to claim 1, characterized in that: The oil pipe includes a main oil pipe, a first oil pipe and a second oil pipe. The hydraulic valve is a three-way hydraulic valve. One end of the main oil pipe is connected to the hydraulic station, and the other end is connected to the inlet of the hydraulic valve; one end of the first oil pipe and one end of the second oil pipe are respectively connected to the two outlets of the hydraulic valve, and the other end of the first oil pipe and the other end of the second oil pipe are respectively connected to the hydraulic stamping mechanism.

3. The multi-station hydraulic punch press according to claim 1, characterized in that: The structure of the machine is L-shaped, and the controller is arranged in the center of the machine.

4. The multi-station hydraulic punch press according to claim 1, characterized in that: A cooling fan and a protective net are independently arranged on the outside of the hydraulic station.

5. The multi-station hydraulic punch press according to claim 1, characterized in that: A material dropping hole is provided on the table top of the machine platform below the hydraulic stamping mechanism, and a waste material collecting box is provided below the machine platform, and the material dropping hole is communicated with the waste material collecting box.

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