Automatic clamping system with hydraulic station

Abstract

The present invention discloses an automatic mold locking system with a hydraulic station, which is suitable for performing mold locking operations in forging scenarios, including some auxiliary parts related to a punching machine, as well as an automatic mold locking device and a hydraulic station. When the forging equipment moves to the upper dead center, the hydraulic station is controlled by a sensor to deliver high-pressure oil to the hydraulic cylinder through a high-pressure oil pipe, driving the piston rod of the hydraulic cylinder to extend; the forging equipment continues to move to drive the die frame with the punch head to the lower dead center, and the piston rod of the hydraulic cylinder applies pressure to the product mold on the mold cylinder to prevent the mold from moving and displacing, thereby achieving the effect of mold locking. At the same time, the piston rod of the hydraulic cylinder forces the corresponding return oil pressure relief valve in the hydraulic station to open under the pressure of the forging equipment, the hydraulic cylinder begins to release pressure, the piston rod is recovered, and the high-pressure oil returns to the hydraulic station under the drive of pressure, which can reduce the vibration and displacement of the forging mold caused by the impact, improve the stability of the product during stamping, and reduce the generation of product waste edges.

Description

Technical Field

[0001] The invention relates to the technical field of automatic mold locking systems, in particular to an automatic mold locking system with a hydraulic station. Background Art

[0002] When forging equipment is performing forging and stamping operations, the product mold is generally placed on the die base of the workbench, and the punch of the forging machine is used to apply pressure to the product mold to cause plastic deformation, thereby obtaining the product of the required shape and size. Since there is no locking system for locking the die base on the workbench, the product mold will vibrate during the stamping process, causing the position to shift, affecting the stamping effect of the product mold. Summary of the invention

[0003] The problem solved by the present invention is how to reduce the impact caused by stamping, improve the stability of the product mold under vibration, and improve the product quality.

[0004] In order to solve the above problems, the present invention provides an automatic mold locking system with a hydraulic station, including auxiliary parts, an automatic mold locking device and a hydraulic station, the auxiliary parts include a frame, a workbench is provided on the frame, a mold cylinder seat is installed on the workbench, a mold cylinder is provided on the mold cylinder seat, a positioning part for fixing the product mold is provided on the mold cylinder, a mold frame connected to a forging device is provided above the mold cylinder, and a punch head is installed on the mold frame; the automatic mold locking device includes at least one hydraulic cylinder installed on the mold frame, the punch head is correspondingly located above the positioning part, and the hydraulic cylinder is correspondingly located above the mold cylinder. The hydraulic cylinder is connected to the hydraulic station through a high-pressure oil pipe, and the piston rod of the hydraulic cylinder cooperates with the top-pressing cylinder; the hydraulic station includes a hydraulic housing, an oil storage tank is arranged in the hydraulic housing, and a main oil pump and an oil pump motor are installed on the hydraulic housing; the main oil pump is connected to the oil pump motor, and the main oil pump is connected to the oil storage tank through a first oil inlet pipe, and the main oil pump is connected to the hydraulic cylinder through a first oil outlet pipe, and an oil supply overflow valve and an oil return overflow valve are installed on the first oil outlet pipe in sequence, a check valve is installed between the oil supply overflow valve and the oil return overflow valve, and the return oil overflow valve is arranged close to the main oil pump.

[0005] Compared with the prior art, the technical solution of the present invention has the following advantages: when the forging equipment moves to the top dead center, the hydraulic station is controlled by the sensor to deliver high-pressure oil to the hydraulic cylinder through the high-pressure oil pipe, driving the piston rod of the hydraulic cylinder to extend; the forging equipment continues to move to drive the die frame with the punch head to the bottom dead center, and the piston rod of the hydraulic cylinder applies pressure to the product mold on the mold cylinder to prevent the mold from moving and displacing, thereby achieving the effect of locking the mold. At the same time, the piston rod of the hydraulic cylinder forces the corresponding return oil pressure relief valve in the hydraulic station to open under the pressure of the forging equipment, the hydraulic cylinder begins to release pressure, the piston rod is recovered, and the high-pressure oil returns to the hydraulic station under the drive of pressure, which can reduce the vibration and displacement of the forging mold caused by the impact, improve the stability of the product during stamping, and reduce the generation of product waste edges.

[0006] Furthermore, two hydraulic cylinders are provided, and the two hydraulic cylinders are symmetrically arranged on both sides of the punching head; the positioning part is correspondingly arranged in the middle of the mold cylinder, and also includes a three-way adapter, each of the hydraulic cylinders is connected to the three-way adapter through a high-pressure oil pipe, and the three-way adapter is connected to the hydraulic station through a high-pressure oil pipe.

[0007] Furthermore, it also includes a sensor installed on the mold frame, which is connected to the control element and is used to sense the upward position of the mold frame and control the oil delivery action of the hydraulic station under set conditions.

[0008] Furthermore, the hydraulic cylinder includes a piston rod and a piston, the mold frame is provided with a piston cavity with an opening facing upward, the piston is installed on the piston rod, the piston is movably installed in the piston cavity through a piston support ring, and a piston gland mounted on the piston rod is installed on the opening of the piston cavity; a piston sealing ring is installed on the piston, and a gland support ring, an O-ring and a dustproof sealing ring are adapted to be installed on the piston gland.

[0009] Furthermore, the hydraulic station also includes a cooling oil pump, a cooling oil pump motor and a radiator body installed on the hydraulic housing, the cooling oil pump is connected to the cooling oil pump motor, the cooling oil pump is connected to the oil storage tank through a second oil inlet pipe, the cooling oil pump is connected to the radiator body through a second oil outlet pipe, and the radiator body is connected to the oil storage tank through an oil return pipe.

[0010] Furthermore, the oil storage tank includes a first oil storage tank and a second oil storage tank separated from each other, the first oil storage tank and the second oil storage tank are connected through a connecting hole, the first oil inlet pipe and the oil return pipe are connected to the first oil storage tank, and the second oil inlet pipe is connected to the second oil storage tank.

[0011] Furthermore, the connecting hole is located at the upper part of the first oil tank, the first oil inlet pipe is inserted into the bottom of the first oil tank, the second oil inlet pipe is inserted into the bottom of the second oil tank, and the oil return pipe is located at the upper part of the first oil tank.

[0012] Furthermore, the oil supply overflow valve and the oil return overflow valve are respectively provided with pressure gauges, and the overflow holes provided on the valve seats of the oil supply overflow valve and the oil return overflow valve are respectively connected to the second oil storage tank.

[0013] Furthermore, a controller is provided on the oil supply overflow valve.

[0014] Furthermore, the oil supply overflow valve and the oil return overflow valve are respectively provided with pressure regulating handles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 Schematic diagram of the structure of an automatic clamping system with a hydraulic station provided in an embodiment of the present invention;

[0017] Figure 2 is a bottom view of a mold frame provided by an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 AA section view;

[0019] Figure 4 is a structural schematic diagram of a hydraulic station provided by an embodiment of the present invention;

[0020] Figure 5 1 is a top view of a hydraulic station provided in an embodiment of the present invention.

[0021] Wherein, the accompanying drawings are marked as follows:

[0022] 1. Frame, 2. Workbench, 3. Cylinder seat, 4. Cylinder, 5. Product mold, 6. Mold frame, 6a. Piston cavity, 6b. Oil hole, 7. Punch head, 8. Hydraulic cylinder, 81. Piston rod, 82. Piston, 83. Piston support ring, 84. Piston gland, 85. Piston sealing ring, 86. Gland support ring, 87. O-ring, 88. Dustproof sealing ring, 9. High-pressure oil pipe, 10. Hydraulic station, 11. Hydraulic housing, 12. Oil reservoir, 121. First oil reservoir, 12 2. Second oil storage tank, 13. Main oil pump, 14. Oil pump motor, 15. First oil inlet pipe, 16. First oil outlet pipe, 17. Oil supply overflow valve, 18. Oil return overflow valve, 19. Check valve, 20. Three-way adapter, 21. Sensor, 22. Cooling oil pump, 23. Cooling oil pump motor, 24. Radiator body, 25. Second oil inlet pipe, 26. Second oil outlet pipe, 27. Return oil pipe, 28. Connecting hole, 29. Pressure gauge, 30. Controller, 31. Pressure regulating handle. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as “inside”, “outside”, “upper”, “lower”, “top” and “bottom” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "fitting" should be understood in a broad sense. For example, the connection 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] See also Figures 1 to 5As shown, the present invention provides an automatic mold locking system with a hydraulic station, which is suitable for performing mold locking operations in forging scenarios, and includes auxiliary parts related to punching machines, automatic mold locking devices and hydraulic stations, the auxiliary parts including a frame 1, a workbench 2 is provided on the frame 1, a mold cylinder seat 3 is installed on the workbench 2, a mold cylinder 4 is provided on the mold cylinder seat 3, a positioning portion for fixing a product mold 5 is provided on the mold cylinder 4, a mold frame 6 connected to the forging equipment is provided above the mold cylinder 4, and a punch head 7 is installed on the mold frame 6; the automatic mold locking device includes at least one hydraulic cylinder 8 installed on the mold frame 6, the punch head 7 is correspondingly located above the positioning portion, the hydraulic cylinder 8 is correspondingly located above the mold cylinder 4, and the hydraulic cylinder 8 passes through the mold frame 6. The over-high-pressure oil pipe 9 is connected to the hydraulic station 10, and the piston rod 81 of the hydraulic cylinder 8 cooperates with the top-pressing mold cylinder 4; the hydraulic station includes a hydraulic housing 11, and an oil storage tank 12 is arranged in the hydraulic housing 11, and a main oil pump 13 and an oil pump motor 14 are installed on the hydraulic housing 11; the main oil pump 13 is connected to the oil pump motor 14, and the main oil pump 13 is connected to the oil storage tank 12 through a first oil inlet pipe 15, and the main oil pump 13 is connected to the hydraulic cylinder 8 through a first oil outlet pipe 16, and an oil supply overflow valve 17 and an oil return overflow valve 18 are installed on the first oil outlet pipe 16 in sequence, and a check valve 19 is installed between the oil supply overflow valve 17 and the oil return overflow valve 18, and the oil return overflow valve 18 is arranged close to the main oil pump 13.

[0028] Specifically, when the forging equipment moves to the top dead center, the hydraulic station 10 is controlled by the sensor 21 to deliver high-pressure oil to the hydraulic cylinder 8 through the high-pressure oil pipe 9, driving the piston rod 81 of the hydraulic cylinder 8 to extend; the forging equipment continues to move to drive the die frame 6 with the punch head 7 to the bottom dead center, and the piston rod 81 of the hydraulic cylinder 8 applies pressure to the product mold 5 on the mold cylinder 4 to prevent the mold from moving and displacing, thereby achieving the effect of locking the mold. At the same time, the piston rod 81 of the hydraulic cylinder 8 forces the corresponding return oil relief valve 18 in the hydraulic station 10 to open under the pressure of the forging equipment, the hydraulic cylinder begins to release pressure, the piston rod 81 is recovered, and the high-pressure oil returns to the hydraulic station 10 under the drive of pressure, which can reduce the vibration and displacement of the forging mold caused by the impact, improve the stability of the product during stamping, and reduce the generation of product waste edges.

[0029] Preferably, a positioning groove is provided on the workbench 2, a first limiting step is provided on the side wall of the positioning groove, a second limiting step is provided on the outer wall of the mold cylinder seat 3, the bottom of the mold cylinder seat 3 is embedded in the positioning groove, and the second limiting step fits tightly with the first limiting step. Such a design can make the loading of the mold cylinder seat 3 more stable and reduce the vibration of the mold cylinder seat 3 to a certain extent.

[0030] Preferably, two hydraulic cylinders 8 are provided, and the two hydraulic cylinders 8 are symmetrically arranged on both sides of the punching head 7; the positioning portion is correspondingly arranged in the middle of the mold cylinder 4, and also includes a three-way adapter 20, each hydraulic cylinder 8 is connected to the three-way adapter 20 through a high-pressure oil pipe 9, and the three-way adapter 20 is connected to the hydraulic station through a high-pressure oil pipe 9. The two hydraulic cylinders 8 are symmetrically arranged on both sides of the punching head 7, and the mold locking is more stable. The setting of the three-way adapter 20 can synchronously control the two hydraulic cylinders 8.

[0031] Furthermore, the clamping system is also designed with a sensor 21 installed on the mold frame 6. The sensor 21 is connected to the control element and is used to sense the upward position of the mold frame 6 and control the oil delivery action of the hydraulic station 10 under set conditions.

[0032] like Figures 2-3 As shown, preferably, the hydraulic cylinder 8 includes a piston rod 81 and a piston 82, a piston chamber 6a with an opening facing upward is provided on the mold frame 6, the piston 82 is mounted on the piston rod 81, the piston 82 is movably mounted in the piston chamber 6a through a piston support ring 83, and a piston gland 84 sleeved on the piston rod 81 is installed on the opening of the piston chamber 6a. Some important sealing components and supporting components are also installed at the hydraulic cylinder, such as a piston sealing ring 85 installed on the piston 82, and a gland support ring 86, an O-ring 87 and a dustproof sealing ring 88 are adapted to be installed at the piston gland 84.

[0033] Specifically, the mold frame 6 is provided with an oil hole 6b communicating with the piston chamber 6a, and the high-pressure oil pipe 9 is communicated with the oil hole 6b.

[0034] Preferably, the hydraulic station 10 further comprises a heat dissipation oil pump 22, a heat dissipation oil pump motor 23 and a radiator body 24 mounted on the hydraulic housing 11, the heat dissipation oil pump 22 is connected to the heat dissipation oil pump motor 23, the heat dissipation oil pump 22 is connected to the oil reservoir 12 via a second oil inlet pipe 25, the heat dissipation oil pump 22 is connected to the radiator body 24 via a second oil outlet pipe 26, and the radiator body 24 is connected to the oil reservoir 12 via an oil return pipe 27. The oil return overflow valve 18 is connected to the three-way adapter 10 via a high-pressure oil pipe 9.

[0035] Specifically, the high-temperature oil in the oil reservoir 12 is pumped to the radiator body 24 through the heat dissipation oil pump 22, and the low-temperature hydraulic oil cooled by the radiator body 24 returns to the oil reservoir 12, which can achieve rapid cooling of the hydraulic oil returned to the oil reservoir 12, thereby increasing the service life of the hydraulic cylinder 8 and the hydraulic station 10, and improving the working stability of the hydraulic station 10 and the clamping device.

[0036] Preferably, the oil reservoir 12 includes two mutually separated first oil reservoirs 121 and second oil reservoirs 122, the first oil reservoir 121 and the second oil reservoir 122 are connected through a connecting hole 28, the first oil inlet pipe 15 and the oil return pipe 27 are connected to the first oil reservoir 121, and the second oil inlet pipe 25 is connected to the second oil reservoir 122. It is convenient to timely replenish the high-temperature oil that flows back from the hydraulic cylinder of the clamping device to the first oil reservoir 121 to the second oil reservoir 122, and efficiently cool the hydraulic oil.

[0037] Specifically, the connection hole 28 is located at the upper part of the first oil reservoir 121, the first oil inlet pipe 15 is inserted into the bottom of the first oil reservoir 121, the second oil inlet pipe 25 is inserted into the bottom of the second oil reservoir 122, and the oil return pipe 27 is located at the upper part of the first oil reservoir 121. The connection hole 28 is arranged in a position so that the high-temperature hydraulic oil at the upper part of the first oil reservoir 121 can enter the second oil reservoir 122 before the low-temperature hydraulic oil at the bottom, so that the first oil inlet pipe 15 always sucks the low-temperature hydraulic oil to the hydraulic cylinder 8 of the clamping device, thereby improving the working stability of the hydraulic station 10 and the clamping device.

[0038] Preferably, the oil supply overflow valve 17 and the oil return overflow valve 18 are respectively provided with a pressure gauge 29 to facilitate display and monitoring of the pressure on the valve. The overflow holes provided on the valve seats of the oil supply overflow valve 17 and the oil return overflow valve 18 are respectively connected to the second oil storage tank 122.

[0039] Specifically, a controller 30 is provided on the oil supply relief valve 17. A pressure regulating handle 31 is provided on the oil supply relief valve 17 and the oil return relief valve 18, respectively, so as to facilitate manual adjustment and control of the pressure of the valve according to actual needs.

[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic clamping system with a hydraulic station, suitable for clamping operations in forging scenarios, characterized by: The invention comprises auxiliary parts, an automatic mold locking device and a hydraulic station, wherein the auxiliary parts comprise a frame (1), a workbench (2) is provided on the frame (1), a mold cylinder seat (3) is installed on the workbench (2), a mold cylinder seat (3) is provided on the mold cylinder seat (3), a mold cylinder (4) is provided on the mold cylinder (4), a positioning portion for fixing a product mold (5) is provided on the mold cylinder (4), a mold frame (6) connected to a forging device is provided above the mold cylinder (4), a punch head (7) is installed on the mold frame (6); the automatic mold locking device comprises at least one hydraulic cylinder (8) installed on the mold frame (6), the punch head (7) is correspondingly located above the positioning portion, the hydraulic cylinder (8) is correspondingly located above the mold cylinder (4), and the hydraulic cylinder (8) is provided with a high pressure The oil pipe (9) is connected to the hydraulic station (10), and the piston rod (81) of the hydraulic cylinder (8) cooperates with the top-pressing mold cylinder (4); the hydraulic station includes a hydraulic housing (11), an oil storage tank (12) is provided in the hydraulic housing (11), and a main oil pump (13) and an oil pump motor (14) are installed on the hydraulic housing (11); the main oil pump (13) is connected to the oil pump motor (14), the main oil pump (13) is connected to the oil storage tank (12) through a first oil inlet pipe (15), the main oil pump (13) is connected to the hydraulic cylinder (8) through a first oil outlet pipe (16), and an oil supply overflow valve (17) and an oil return overflow valve (18) are installed on the first oil outlet pipe (16) in sequence, and the oil supply A check valve (19) is installed between the overflow valve (17) and the return oil overflow valve (18), and the return oil overflow valve (18) is arranged close to the main oil pump (13); two hydraulic cylinders (8) are provided, and the two hydraulic cylinders (8) are symmetrically arranged on both sides of the punch head (7); the positioning part is correspondingly arranged in the middle of the mold cylinder (4), and also includes a three-way adapter seat (20), each of the hydraulic cylinders (8) is connected to the three-way adapter seat (20) through a high-pressure oil pipe (9), and the three-way adapter seat (20) is connected to the hydraulic station through a high-pressure oil pipe (9); the automatic clamping system also includes a sensor (21) installed on the mold frame (6), and the sensor (21) is connected to the control element for sensing The hydraulic cylinder (8) is adapted to adjust the upward position of the mold frame (6) and control the oil delivery action of the hydraulic station under set conditions; the hydraulic cylinder (8) comprises a piston rod (81) and a piston (82); a piston chamber (6a) with an opening facing upward is provided on the mold frame (6); the piston (82) is mounted on the piston rod (81); the piston (82) is movably mounted in the piston chamber (6a) through a piston support ring (83); a piston gland (84) sleeved on the piston rod (81) is mounted on the opening of the piston chamber (6a); a piston sealing ring (85) is mounted on the piston (82); a gland support ring (86), an O-ring (87) and a dustproof sealing ring (88) are adapted to be mounted on the piston gland (84).

2. The automatic clamping system with hydraulic station according to claim 1, characterized in that: The hydraulic station (10) further comprises a heat dissipation oil pump (22), a heat dissipation oil pump motor (23) and a radiator body (24) mounted on the hydraulic housing (11); the heat dissipation oil pump (22) is connected to the heat dissipation oil pump motor (23); the heat dissipation oil pump (22) is connected to the oil reservoir (12) via a second oil inlet pipe (25); the heat dissipation oil pump (22) is connected to the radiator body (24) via a second oil outlet pipe (26); and the radiator body (24) is connected to the oil reservoir (12) via an oil return pipe (27).

3. The automatic clamping system with hydraulic station according to claim 2 is characterized in that: The oil storage tank (12) comprises a first oil storage tank (121) and a second oil storage tank (122) which are separated from each other. The first oil storage tank (121) and the second oil storage tank (122) are connected via a connecting hole (28). The first oil inlet pipe (15) and the oil return pipe (27) are connected to the first oil storage tank (121), and the second oil inlet pipe (25) is connected to the second oil storage tank (122).

4. The automatic clamping system with hydraulic station according to claim 3 is characterized in that: The connecting hole (28) is located at the upper part of the first oil reservoir (121), the first oil inlet pipe (15) is inserted into the bottom of the first oil reservoir (121), the second oil inlet pipe (25) is inserted into the bottom of the second oil reservoir (122), and the oil return pipe (27) is located at the upper part of the first oil reservoir (121).

5. The automatic clamping system with hydraulic station according to claim 2 or 3, characterized in that: The oil supply overflow valve (17) and the oil return overflow valve (18) are respectively provided with a pressure gauge (29), and the overflow holes provided on the valve seats of the oil supply overflow valve (17) and the oil return overflow valve (18) are respectively communicated with the second oil storage tank (122).

6. The automatic clamping system with hydraulic station according to claim 2 or 3, characterized in that: The oil supply overflow valve (17) is provided with a controller (30).

7. The automatic clamping system with hydraulic station according to claim 2 or 3, characterized in that: The oil supply overflow valve (17) and the oil return overflow valve (18) are respectively provided with a pressure regulating handle (31).

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