A hydraulic control device capable of adjusting the punching stroke of a punch press

Abstract

The present invention discloses a hydraulic control device with adjustable punching stroke of a punching machine, comprising a base plate, one end surface of the base plate is fixedly connected to a side plate, one side surface of the side plate is fixedly installed with a punching cylinder, one end rod head of the punching cylinder is fixedly installed with a connecting head, one end surface of the connecting head is fixedly connected with the punching head, the other end surface of the base plate is fixedly connected to an oil tank, one side surface of the oil tank is fixedly connected to a pump body through a pipeline, the outlet of the pump body is fixedly connected to an electromagnetic valve through a pipeline, one end surface of the electromagnetic valve is fixedly connected to a first pipeline, the other end surface of the electromagnetic valve is fixedly installed with a second pipeline, one end surface of the second pipeline is fixedly connected to a regulating valve, and one end opening of the regulating valve is fixedly connected to a connecting pipe, which can greatly improve the convenience and stability of use and ensure the safety and efficiency of regulation and control.

Description

Technical Field

[0001] The invention relates to the field of punching machines, and more particularly to a hydraulic control device capable of adjusting the punching stroke of a punching machine. Background Art

[0002] In the industrial production process, using a punch press for punching operations is a very common processing method. The punch press can increase the punching force to complete the processing operation by hydraulically controlling the punching cylinder. Different punching depths are required for different workpieces, which requires adjustment and control of the punching stroke.

[0003] However, when adjusting the punching stroke of existing punching machines, the height of the punching cylinder is mostly adjusted to change the distance between the punching head and the workpiece. This not only makes the structure of the adjustment device complicated, but also the weight of the moving components is heavy, which is not conducive to operation and use. It is also impossible to perform hydraulic adjustment by controlling the circuit and pressure of the hydraulic oil, and the safety and stability are poor. In addition, when adjusting the stroke, the adjustment range cannot be accurately indicated, resulting in a large punching deviation, which needs to be improved. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a hydraulic control device with adjustable punching stroke of a punching machine. By installing the punching cylinder on the side plate on the bottom plate, hydraulic punching can be performed. The pump body and the solenoid valve are installed in combination with the oil tank at the other end, and then a plurality of pipes are installed through the regulating valve. Hydraulic oil can be supplied to drive the punching cylinder to ensure the punching force. At the same time, the oil circuit and pressure can be adjusted in combination with the regulating valve, so as to accurately control the punching stroke, which is conducive to hydraulic adjustment and control, and is accurate and efficient. At the same time, by installing switches and scales on the side, stroke indication and control can be performed, which is conducive to adjustment operation. This can greatly improve the convenience and stability of use and ensure the safety and efficiency of adjustment and control.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A hydraulic control device capable of adjusting the punching stroke of a punching machine comprises a base plate, one end surface of the base plate is fixedly connected to a side plate, one side surface of the side plate is fixedly installed with a punching cylinder, one end rod head of the punching cylinder is fixedly installed with a connecting head, one end surface of the connecting head is fixedly connected with the punching head, the other end surface of the base plate is fixedly connected to an oil tank, one side surface of the oil tank is fixedly connected to a pump body through a pipeline, an outlet of the pump body is fixedly connected to an electromagnetic valve through a pipeline, one end surface of the electromagnetic valve is fixedly connected to a first pipeline, one end of the first pipeline is fixedly connected to one end surface of the punching cylinder, a second pipeline is fixedly installed on the other end surface of the electromagnetic valve, one end surface of the second pipeline is fixedly connected to a regulating valve, one end opening of the regulating valve is fixedly connected to a connecting pipe, one end surface of the connecting pipe is fixedly connected to the other end side of the punching cylinder, the other end opening of the regulating valve is fixedly installed with a return pipe, and one end of the return pipe is fixedly connected to one end surface of the oil tank.

[0007] Furthermore, a motor is fixedly mounted on one side surface of the regulating valve, a valve core is rotatably mounted on the shaft end of the motor, and the surface of the valve core is rotatably connected to the side of the internal cavity of the regulating valve. By installing the motor and the valve core on the regulating valve, the direction of the oil circuit can be changed by rotation adjustment, which is convenient for control and use.

[0008] Furthermore, a right-angle channel is provided on the side of the valve core, and both ends of the right-angle channel are respectively connected to the second pipeline and one end of the connecting pipe. The right-angle channel is provided by the valve core, which is convenient for connecting the oil circuit and adjusting and using.

[0009] Furthermore, a sliding groove is provided on the side surface of one end of the side panel, a threaded rod is fixedly connected to the side surface of the sliding groove, a switch is slidably installed on the surface of one end of the threaded rod, and the height can be adjusted to change the stroke by installing the threaded rod and the switch on the side panel, which is convenient and stable.

[0010] Furthermore, a wire is connected in series to one end surface of the switch, and one end surface of the wire is connected in series to one side surface of the motor. The wire and the motor are connected by the switch and can be controlled by pressing, which is convenient and efficient.

[0011] Furthermore, support nuts are provided on both side surfaces of the switch, and the side surfaces of the support nuts are threadedly connected to the surface of the threaded rod. By connecting the switch to the support nuts, the installation height can be threadedly adjusted, and then the stroke can be adjusted, which is convenient and stable.

[0012] Furthermore, an indicating head is provided on one side surface of the switch, a scale is fixedly connected to one end surface of the base plate, the surface of the indicating head is slidably connected to the surface of the scale, and the indicating head is connected to the scale to accurately indicate the adjusted height and ensure control accuracy.

[0013] Furthermore, a pressure plate is hinged on one side surface of the connecting head through a hinge seat, and one end surface of the pressure plate is slidably connected to the side of the switch. The pressure plate is hinged on the connecting head, and the switch can be pressed to control it, which can be operated during punching, with high efficiency, stability and precision.

[0014] Furthermore, one end surface of the connector is fixedly connected to a limiting block, and one side surface of the limiting block is located on the side surface of one end of the pressing plate.

[0015] Furthermore, a connecting plate is fixedly connected to the other end surface of the connecting head, a buffer spring is fixedly installed on the surface of the connecting plate, one end of the buffer spring is fixedly connected to the other side surface of the pressure plate, and the buffer spring and the limit block are connected by the pressure plate, so that they can be pressed tightly and buffered to avoid hard impact, which is safe and stable.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution can perform hydraulic punching by installing a punching cylinder on the side plate of the bottom plate. The pump body and the solenoid valve are installed in combination with the oil tank at the other end, and then multiple pipes are installed through the regulating valve to supply hydraulic oil to drive the punching cylinder to ensure the punching force. At the same time, the oil circuit and pressure can be adjusted in combination with the regulating valve to accurately control the punching stroke, which is conducive to hydraulic adjustment and control, and is accurate and efficient.

[0018] (2) By installing the motor and valve core through the regulating valve, the oil circuit direction can be changed by rotation adjustment, which is convenient for control and use.

[0019] (3) A right-angle channel is set through the valve core to facilitate the connection of the oil circuit and facilitate adjustment and use.

[0020] (4) By installing the threaded rod and switch on the side panel, the height can be adjusted to change the stroke, which is convenient and stable.

[0021] (5) The wires and motors are connected by switches, which can be controlled by pressing a button, which is convenient and efficient.

[0022] (6) By connecting the support nut through the switch, the installation height can be adjusted by thread, and then the stroke can be adjusted, which is convenient and stable.

[0023] (7) By connecting the indicator head to the scale, the adjustment height can be accurately indicated to ensure control accuracy.

[0024] (8) The pressure plate can be hinged through the connecting head and controlled by pressing the switch. It can be operated during punching with high efficiency, stability and high precision.

[0025] (9) The buffer spring and the limit block are connected by the pressure plate, which can be pressed tightly and buffered to avoid hard collision, which is safe and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection of the regulating valve of the present invention;

[0028] Figure 3 is an internal cross-sectional view of the regulating valve of the present invention;

[0029] Figure 4 For the present invention Figure 1 Enlarged view of point A where the middle switch and pressure plate are connected;

[0030] Figure 5 It is a schematic diagram of the local structure of the pressure plate connection of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1 bottom plate, 11 side plate, 12 punching cylinder, 13 connecting head, 14 punching head, 15 oil tank, 16 pump body, 17 solenoid valve, 18 first pipeline, 19 second pipeline, 2 regulating valve, 21 connecting pipe, 22 return pipe, 23 motor, 24 valve core, 25 right angle channel, 26 sliding groove, 27 threaded rod, 28 switch, 29 wire, 3 support nut, 31 indicator head, 32 scale, 33 hinge seat, 34 pressure plate, 35 limit block, 36 connecting plate, 37 buffer spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-5 , a hydraulic control device capable of adjusting the punching stroke of a punch press, comprising a bottom plate 1, see Figure 1 and Figure 2One end surface of the bottom plate 1 is fixedly connected to a side plate 11, and a punching cylinder 12 is fixedly installed on one side surface of the side plate 11. A connecting head 13 is fixedly installed on one end rod head of the punching cylinder 12. The punching cylinder 12 can be driven by hydraulic pressure, and then the punching operation is performed through the punching head 13, which is efficient and stable. A punching head 14 is fixedly connected to one end surface of the connecting head 13. An oil tank 15 is fixedly connected to the other end surface of the bottom plate 1. A pump body 16 is fixedly connected to one side surface of the oil tank 15 through a pipeline. The outlet of the pump body 16 is fixedly connected to a solenoid valve 17 through a pipeline. A four-position three-way solenoid valve is adopted, which can alternately supply oil, and then drive the punching cylinder 12 back and forth, which is convenient for operation and use. One end surface of the solenoid valve 17 is fixedly connected to a first pipeline 18, and the first pipeline 19 is fixedly connected to the second pipeline 11. One end of a pipe 18 is fixedly connected to one end surface of the punching cylinder 12, and a second pipe 19 is fixedly installed on the other end surface of the solenoid valve 17. One end surface of the second pipe 19 is fixedly connected to a regulating valve 2. One end opening of the regulating valve 2 is fixedly connected to a connecting pipe 21. One end surface of the connecting pipe 21 is fixedly connected to the other end side of the punching cylinder 12. A return pipe 22 is fixedly installed on the other end opening of the regulating valve 2. After reaching the set punching stroke, the high-pressure oil can flow back to the inside of the oil tank 15 through the return pipe 22, and will no longer drive the punching cylinder 12 to extend, thereby ensuring the accuracy and safety of the stroke adjustment, facilitating control and use, and facilitating installation and positioning for operation. One end of the return pipe 22 is fixedly connected to one end surface of the oil tank 15.

[0035] See also Figure 2 and Figure 3 A motor 23 is fixedly installed on the surface of one side of the regulating valve 2, and a valve core 24 is rotatably installed on the shaft end of the motor 23. The surface of the valve core 24 is rotatably connected to the side of the internal cavity of the regulating valve 2. The motor 23 and the valve core 24 are installed on the regulating valve 2, and the direction of the oil circuit can be changed by rotation adjustment, which is convenient for control and use. A right-angle channel 25 is provided on the side of the valve core 24, and the two ends of the right-angle channel 25 are respectively connected to the second pipeline 19 and one end of the connecting pipe 21. The right-angle channel 25 is set through the valve core 24, which is convenient for connecting the oil circuit and convenient for adjustment and use.

[0036] See also Figure 1 and Figure 4A sliding groove 26 is provided on the side surface of one end of the side plate 11, and a threaded rod 27 is fixedly connected to the side of the sliding groove 26. A switch 28 is slidably installed on the surface of one end of the threaded rod 27. By installing the threaded rod 27 and the switch 28 on the side plate 11, the height can be adjusted to change the stroke, which is convenient and stable. A wire 29 is connected in series on one end surface of the switch 28, and one end surface of the wire 28 is connected in series to a side surface of the motor 23. The wire 29 and the motor 23 are connected through the switch 28, which can be pressed for control, which is convenient and efficient. Support nuts 3 are provided on both side surfaces of the switch 28. The side surface of the support nut 3 is threadedly connected to the surface of the threaded rod 27. The support nut 3 is connected through the switch 28, and the installation height can be threadedly adjusted, thereby adjusting the stroke, which is convenient and stable. An indicating head 31 is provided on the surface of one end of the bottom plate 1, and a scale 32 is fixedly connected to the surface of the scale 32. The scale 32 is connected through the indicating head 31, and the height adjustment can be accurately indicated to ensure the control accuracy.

[0037] See also Figure 4 and Figure 5 One side surface of the connecting head 13 is hinged with a pressure plate 34 through a hinge seat 33, and one end surface of the pressure plate 34 is slidably connected to the side of the switch 28. The pressure plate 34 is hinged by the connecting head 13, and the switch can be pressed for control, and the operation can be performed during punching, which is efficient, stable and accurate. One end surface of the connecting head 13 is fixedly connected to a limiting block 35, and one side surface of the limiting block 35 is located on one end side of the pressure plate 34. The other end surface of the connecting head 13 is fixedly connected with a connecting plate 36, and a buffer spring 37 is fixedly installed on the surface of the connecting plate 36. One end of the buffer spring 37 is fixedly connected to the other side surface of the pressure plate 34. The buffer spring 37 and the limit block 35 are connected through the pressure plate 35, so that they can be pressed tightly and at the same time, they can be buffered and avoided to avoid hard collisions, which is safe and stable.

[0038] When in use, the hydraulic oil in the oil tank 15 can be sucked into the solenoid valve 17 through the pump body 16, and then alternately passed into the first pipe 18 and the second pipe 19, which can drive the punching cylinder 12 to reciprocate and extend, and then the punching head 14 in the bag moves to perform the punching operation. When the stroke needs to be adjusted, the support nut 3 can be rotated to move the switch 28 to a different position, and the indicating head 31 slides on the surface of the scale 32, which can accurately indicate the adjusted height position, making operation convenient. When driving, the hydraulic oil enters the regulating valve 2 through the second pipe 19, enters the connecting pipe 21 through the right-angle channel 25, and enters from the tail of the punching cylinder 12, which can push the internal piston and piston rod to extend, and then move the punching head 14 downward for hydraulic punching. The connecting head 13 moves the punching head 14 and moves the pressure plate 34 to a different position. When the set stroke is reached, the switch 28 will be pressed. After power is turned on, the control motor 23 rotates the valve core 24 to a greater extent, and the right-angle channel connects to the second pipe 19 And the return pipe 22, so that the hydraulic oil returns to the oil tank 15, and the stamping cylinder 12 is locked inside, which can ensure the stability of the stroke adjustment. At the same time, the high-pressure oil supplied directly returns to avoid affecting the pipeline pressure and ensuring the safety of operation. Then the solenoid valve 17 can be used to change the oil supply direction, drive the stamping cylinder 12 to contract, reset the switch 28, and reset the control motor 23. It can be used reciprocatingly, which is safe and efficient, and is conducive to hydraulic adjustment and control of the stroke.

[0039] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic control device capable of adjusting the punching stroke of a punch press, comprising a base plate (1), characterized in that: One end surface of the bottom plate (1) is fixedly connected to a side plate (11), one side surface of the side plate (11) is fixedly mounted with a punching cylinder (12), one end rod head of the punching cylinder (12) is fixedly mounted with a connecting head (13), one end surface of the connecting head (13) is fixedly connected with a punching head (14), the other end surface of the bottom plate (1) is fixedly connected to an oil tank (15), one side surface of the oil tank (15) is fixedly connected to a pump body (16) via a pipeline, the outlet of the pump body (16) is fixedly connected to a solenoid valve (17) via a pipeline, one end surface of the solenoid valve (17) is fixedly connected to a first pipe A pipe (18) is provided, one end of the first pipe (18) is fixedly connected to one end surface of the punching cylinder (12), the other end surface of the solenoid valve (17) is fixedly mounted with a second pipe (19), one end surface of the second pipe (19) is fixedly connected to a regulating valve (2), one end opening of the regulating valve (2) is fixedly connected to a connecting pipe (21), one end surface of the connecting pipe (21) is fixedly connected to the other end side surface of the punching cylinder (12), the other end opening of the regulating valve (2) is fixedly mounted with a return pipe (22), one end of the return pipe (22) is fixedly connected to one end surface of the oil tank (15); A motor (23) is fixedly mounted on one side surface of the regulating valve (2), a valve core (24) is rotatably mounted on the shaft end of the motor (23), the surface of the valve core (24) is rotatably connected to the side surface of the internal cavity of the regulating valve (2), a right-angle channel (25) is provided on the side surface of the valve core (24), the two ends of the right-angle channel (25) are respectively connected to one end position of the second pipeline (19) and the connecting pipe (21), a sliding groove (26) is provided on the side surface of one end of the side plate (11), a threaded rod (27) is fixedly connected to the side surface of the sliding groove (26), a switch (28) is slidably mounted on one end surface of the threaded rod (27), one end surface of the switch (28) is connected in series with an electric wire (29), one end surface of the electric wire (29) is connected in series to one side surface of the motor (23), and support nuts (3) are provided on both side surfaces of the switch (28), the support nuts ( The side surface of the switch (28) is threadedly connected to the surface of the threaded rod (27), an indicating head (31) is provided on one side surface of the switch (28), one end surface of the base plate (1) is fixedly connected to a scale (32), the surface of the indicating head (31) is slidably connected to the surface of the scale (32), one side surface of the connecting head (13) is hinged to a pressure plate (34) through a hinge seat (33), one end surface of the pressure plate (34) is slidably connected to the side surface of the switch (28), one end surface of the connecting head (13) is fixedly connected to a limiting block (35), one side surface of the limiting block (35) is located on one end side surface of the pressure plate (34), the other end surface of the connecting head (13) is fixedly connected to a connecting plate (36), the surface of the connecting plate (36) is fixedly installed with a buffer spring (37), one end of the buffer spring (37) is fixedly connected to the other side surface of the pressure plate (34).

Images