A special device for detecting the deflection of a press slide and a platen and a measuring method thereof

Abstract

The present invention relates to a special device for detecting the deflection of a slide block and a table plate of a press machine and a measuring method thereof. The cover plate is arranged on the oil cylinder, the piston is arranged in the oil cylinder, a pressure plate is arranged above the piston, an O-ring is arranged between the pressure plate and the cover plate, the pad is arranged on the upper part of the pressure plate, the sleeve is arranged between the piston and the oil cylinder, a piston rod sealing ring is arranged on the outer side of the piston, the fixing ring is arranged at the lower part of the piston rod sealing ring, the angle plate is connected to one side of the oil cylinder, and the baffle is fixedly connected to the angle plate; a signal sensor is arranged in the sensor joint hole, the signal sensor is connected to an external signal processor, and the pressure in the oil cylinder is transmitted to the external signal processor through the signal sensor; an oil pipe is arranged at the oil circuit joint hole, and the oil cylinder is connected to an external pump station through the oil pipe. The present invention is aimed at the deflection detection of large-tonnage presses, and performs automated deflection detection through the cooperation of hydraulic and electrical systems to ensure product quality and measurement accuracy.

Description

Technical Field

[0001] The invention relates to a detection device and a measuring method thereof, in particular to a special device for detecting the deflection of a slide block and a table plate of a press machine and a measuring method thereof. Background Art

[0002] In order to avoid deformation of the slider and the platen during normal operation of the press, which would affect the quality of the stamped parts, each machine tool needs to be tested for deflection during factory commissioning. For small-tonnage presses, a homemade oil cylinder can be used in conjunction with an electric oil pump for deflection testing. For heavy-duty presses, since the nominal force of each machine tool is relatively large, ordinary oil cylinders cannot withstand high pressure, so a special loader (oil cylinder) needs to be designed to meet the deflection test of large-tonnage machine tools. Summary of the invention

[0003] The object of the present invention is to provide a special device for detecting the deflection of a press slide and a table and a measuring method thereof, so as to solve the problems in the prior art.

[0004] The technical scheme of the present invention is: a special device for detecting the deflection of a slide block and a table of a press machine, the device comprising a cover plate, a cylinder, a pressing plate, a sleeve, a piston rod seal ring, a fixing ring, a piston, an angle plate, a baffle, an O-ring, a cylinder reset assembly, an oil circuit joint hole and a sensor joint hole; the cylinder reset assembly is a square pad;

[0005] The cover plate is arranged on the oil cylinder, the piston is arranged in the oil cylinder, a pressure plate is arranged above the piston, an O-ring is arranged between the pressure plate and the cover plate, the pad is arranged on the upper part of the pressure plate, the sleeve is arranged between the piston and the oil cylinder, a piston rod sealing ring is arranged on the outer side of the piston, the fixing ring is arranged at the lower part of the piston rod sealing ring, the angle plate is connected to one side of the oil cylinder, and the baffle is fixedly connected to the angle plate;

[0006] A signal sensor is arranged in the sensor joint hole, and the signal sensor is connected to an external signal processor, and the pressure in the oil cylinder is transmitted to the external signal processor through the signal sensor; an oil pipe is arranged at the oil circuit joint hole, and the oil cylinder is connected to an external pump station through the oil pipe.

[0007] A special device for detecting the deflection of a slide block and a platen of a press machine, the device comprising a cover plate, an oil cylinder, a pressing plate, a sleeve, a piston rod sealing ring, a fixing ring, a piston, an angle plate, a baffle, an O-ring, an oil cylinder reset assembly, an oil line joint hole and a sensor joint hole; the oil cylinder reset assembly comprises a handle, a screw, a claw, a pressure head, a cylindrical pin and a rotating rod;

[0008] The cover plate is arranged on the oil cylinder, the piston is arranged in the oil cylinder, a pressure plate is arranged above the piston, an O-ring is arranged between the pressure plate and the cover plate, the sleeve is arranged between the piston and the oil cylinder, a piston rod sealing ring is arranged outside the piston, the fixing ring is arranged at the lower part of the piston rod sealing ring, the angle plate is connected to one side of the oil cylinder, and the baffle is fixedly connected to the angle plate;

[0009] Screws are arranged at both ends of the handle, the rotary rod is connected to the lower part of the handle, the lower end of the rotary rod is connected to the pressure head through a cylindrical pin, the rotary rod is rotated to make the pressure head contact with the pressure plate, and the clamping claw is arranged on the side of the oil cylinder and is clamped and fixed with the cover plate;

[0010] A signal sensor is arranged in the sensor joint hole, and the signal sensor is connected to an external signal processor, and the pressure in the oil cylinder is transmitted to the external signal processor through the signal sensor; an oil pipe is arranged at the oil circuit joint hole, and the oil cylinder is connected to an external pump station through the oil pipe.

[0011] A method for measuring a press slide and a platen deflection detection device, comprising the following steps:

[0012] 1) Place multiple cylinders symmetrically on the workbench and reset the pistons using the cylinder reset assembly before use;

[0013] 2) Install the signal sensor into the sensor connector hole, and connect the signal sensor to the external signal processor. The pressure in the oil cylinder is transmitted to the external signal processor through the signal sensor; the oil cylinder is connected to the external pump station through the high-pressure oil pipe;

[0014] 3) Open the slide of the press to the bottom dead center, adjust the die height of the slide so that the slide fits the pad or the pressure plate, pressurize the cylinder through the external pump station, pay attention to the tonnage display, and stop when there is a number;

[0015] 4) Arrange the stand horizontally on the workbench, set up multiple dial indicators on the stand, and return the dial indicators to zero;

[0016] 5) Load the cylinder 4-5 times through an external pump station until it is loaded to the designed tonnage of the machine tool and monitor the tonnage. The entry of hydraulic oil causes the piston to rise, and the force is transmitted to the bottom of the slider through the pad or pressure plate, causing the slider to deform. Record the value of the dial indicator during each loading, and calculate the disturbance of the slider and the worktable using the disturbance calculation formula.

[0017] Preferably, the force of the oil cylinder is 500T, and the number of the oil cylinders is 4-8.

[0018] Preferably, the dial indicator is tangent to the bottom surface of the slider and the surface of the worktable, cuts to a depth of 6-7 mm, and then returns to zero.

[0019] Preferably, the plurality of dial indicators are arranged on one side of the workbench, and the plurality of dial indicators are symmetrically arranged in pairs.

[0020] The beneficial effects of the present invention are: for the deflection detection of a large-tonnage press, the deflection detection is performed automatically through the cooperation of the hydraulic and electrical systems, thereby ensuring the product quality and the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 yes Figure 1 Side cross-sectional view of .

[0023] Figure 3 It is another structural schematic diagram of the present invention.

[0024] Figure 4 It is a working schematic diagram of the present invention.

[0025] In the figure, 1 is a backing plate, 2 is a cover plate, 3 is an oil cylinder, 4 is a pressure plate, 5 is a sleeve, 6 is a piston rod seal, 7 is a fixing ring, 8 is a piston, 9 is an angle plate, 10 is a baffle, 11 is an O-ring, 12 is an oil circuit joint hole, 13 is a sensor joint hole, 14 is a workbench, 15 is a special detection device, 16 is a stand, 17 is a dial indicator, 18 is a handle, 19 is a screw, 20 is a claw, 21 is a pressure head, 22 is a cylindrical pin, and 23 is a rotary rod. DETAILED DESCRIPTION

[0026] Example 1

[0027] A special device for detecting the deflection of a slide block and a platen of a press machine, the device comprising a cover plate 2, a cylinder 3, a pressure plate 4, a sleeve 5, a piston rod seal 6, a fixing ring 7, a piston 8, an angle plate 9, a baffle 10, an O-ring 11, a cylinder reset assembly, an oil circuit joint hole 12 and a sensor joint hole 13; the cylinder reset assembly is a square pad 1;

[0028] The cover plate 2 is arranged on the oil cylinder 3 to limit the movement range of the piston 8, the piston 8 is arranged in the oil cylinder 3, a pressure plate 4 is arranged above the piston 8, the pressure plate 4 is arranged between the pad 1 and the piston 8, an O-ring 11 is arranged between the pressure plate 4 and the cover plate 2, the pad 1 is arranged on the upper part of the pressure plate 4, the sleeve 5 is arranged between the piston 8 and the oil cylinder 3 to limit the movement of the piston 8 and reduce the friction force, a piston rod sealing ring 6 is arranged on the outer side of the piston 8 to prevent oil leakage from the oil cylinder 3, the fixing ring 7 is arranged at the lower part of the piston rod sealing ring 6 to fix the piston rod sealing ring 6, the angle plate 9 is connected to one side of the oil cylinder 3, and the baffle 10 is fixedly connected to the angle plate 9;

[0029] A signal sensor is arranged in the sensor joint hole 13, and the signal sensor is connected to an external signal processor. The pressure in the oil cylinder 3 is transmitted to the external signal processor through the signal sensor; an oil pipe is arranged at the oil circuit joint hole 12, and the oil cylinder 3 is connected to an external pump station through the oil pipe.

[0030] A method for measuring a press slide and a platen deflection detection device, comprising the following steps:

[0031] 1) Place multiple oil cylinders 3 symmetrically on the workbench 14, and reset the pistons 8 using the oil cylinder reset assembly before use;

[0032] 2) Install the signal sensor into the sensor connector hole 13, and connect the signal sensor to the external signal processor, so that the pressure in the oil cylinder 3 is transmitted to the external signal processor through the signal sensor; connect the oil cylinder 3 to the external pump station through the high-pressure oil pipe;

[0033] 3) Open the slide of the press to the bottom dead center, adjust the die height of the slide so that the slide fits the upper surface of the pad 1, pressurize the cylinder 3 through the external pump station, pay attention to the tonnage display, and stop when there is a number;

[0034] 4) Arrange the stand 16 horizontally on the workbench 14, set a plurality of dial indicators 17 on the stand 16, and return the dial indicators 17 to zero;

[0035] 5) Load the oil cylinder 3 4-5 times through the external pump station until it is loaded to the designed tonnage of the machine tool and the tonnage is monitored. The entry of hydraulic oil causes the piston 8 to rise. The presence of the pad 1 increases the contact area between the piston 8 and the bottom surface of the slider. The force is transmitted to the bottom surface of the slider through the pad 1, causing the slider to deform. Record the value of the dial indicator 17 during each loading, and calculate the disturbance of the slider and the worktable 14 through the disturbance calculation formula. Due to the presence of the pad 1, the piston 8 of the oil cylinder 3 can be reset by its own weight when resetting.

[0036] The force of the oil cylinder 3 is 500T, and the number of the oil cylinders is 4-8.

[0037] The dial indicator 17 is tangent to the bottom surface of the slider and the surface of the workbench 14, with a cutting depth of 6-7 mm, and then returns to zero.

[0038] The plurality of dial indicators 17 are disposed on one side of the workbench 14 , and the plurality of dial indicators 17 are symmetrically disposed in pairs.

[0039] Example 2

[0040] A special device for detecting the deflection of a slide block and a platen of a press machine, the device comprising a cover plate 2, a cylinder 3, a pressing plate 4, a sleeve 5, a piston rod sealing ring 6, a fixing ring 7, a piston 8, an angle plate 9, a baffle 10, an O-ring 11, a cylinder reset assembly, an oil circuit joint hole 12 and a sensor joint hole 13; the cylinder reset assembly comprises a handle 18, a screw 19, a claw 20, a pressure head 21, a cylindrical pin 22 and a rotary rod 23;

[0041] The cover plate 2 is arranged on the oil cylinder 3, the piston 8 is arranged in the oil cylinder 3, the pressure plate 4 is arranged above the piston 8, an O-ring 11 is arranged between the pressure plate 4 and the cover plate 2, the sleeve 5 is arranged between the piston 8 and the oil cylinder 3, a piston rod sealing ring 6 is arranged on the outer side of the piston 8, the fixing ring 7 is arranged at the lower part of the piston rod sealing ring 6, the angle plate 9 is connected to one side of the oil cylinder 3, and the baffle 10 is fixedly connected to the angle plate 9;

[0042] Screws 19 are provided at both ends of the handle 18, the rotary rod 23 is connected to the lower part of the handle 18, the lower end of the rotary rod 23 is connected to the pressure head 21 through a cylindrical pin 22, and the rotary rod 23 is rotated to make the pressure head 21 contact with the pressure plate 4, and the claw 20 is provided on the side of the oil cylinder 3 and is fixedly connected with the cover plate 2;

[0043] A signal sensor is arranged in the sensor joint hole 13, and the signal sensor is connected to an external signal processor. The pressure in the oil cylinder 3 is transmitted to the external signal processor through the signal sensor; an oil pipe is arranged at the oil circuit joint hole 12, and the oil cylinder 3 is connected to an external pump station through the oil pipe.

[0044] A method for measuring a press slide and a platen deflection detection device, comprising the following steps:

[0045] 1) Place multiple oil cylinders 3 symmetrically on the workbench 14, and reset the pistons 8 using the oil cylinder reset assembly before use;

[0046] 2) Install the signal sensor into the sensor connector hole 13, and connect the signal sensor to the external signal processor, so that the pressure in the oil cylinder 3 is transmitted to the external signal processor through the signal sensor; connect the oil cylinder 3 to the external pump station through the high-pressure oil pipe;

[0047] 3) Open the slide of the press machine to the bottom dead center, adjust the die height of the slide so that the slide fits the pressing plate 4, pressurize the cylinder 3 through the external pump station, pay attention to the tonnage display, and stop when there is a number;

[0048] 4) Arrange the stand 16 horizontally on the workbench 14, set a plurality of dial indicators 17 on the stand 16, and return the dial indicators 17 to zero;

[0049] 5) Load the cylinder 3 4-5 times through the external pump station until it is loaded to the designed tonnage of the machine tool and the tonnage is monitored. The entry of hydraulic oil causes the piston 8 to rise, and the force is transmitted to the bottom surface of the slider through the pressure plate 4, causing the slider to deform. Record the value of the dial indicator 17 during each loading, and calculate the disturbance size of the slider and the worktable 14 through the disturbance calculation formula.

[0050] The force of the oil cylinder 3 is 500T, and the number of the oil cylinders is 4-8.

[0051] The dial indicator 17 is tangent to the bottom surface of the slider and the surface of the workbench 14, with a cutting depth of 6-7 mm, and then returns to zero.

[0052] The plurality of dial indicators 17 are disposed on one side of the workbench 14 , and the plurality of dial indicators 17 are symmetrically disposed in pairs.

[0053] In this embodiment, the piston 8 of the oil cylinder 3 is reset by the oil cylinder reset assembly. The specific operation is: the claw 20 is installed from the side of the oil cylinder 3 and clamps the cover plate 2 of the oil cylinder 3, and the handle 18 is turned to make the pressure head 21 contact with the pressure plate 4 of the oil cylinder 3, and then the pressure plate 4 pushes the piston 8 to reset.

[0054] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is 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.

[0055] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0056] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special device for detecting the deflection of the slide and the platen of a press machine, Features: The device comprises a cover plate (2), an oil cylinder (3), a pressure plate (4), a sleeve (5), a piston rod sealing ring (6), a fixing ring (7), a piston (8), an angle plate (9), a baffle (10), an O-ring (11), an oil cylinder reset assembly, an oil circuit joint hole (12) and a sensor joint hole (13); the oil cylinder reset assembly is a square pad (1); The cover plate (2) is arranged on the oil cylinder (3), the piston (8) is arranged in the oil cylinder (3), a pressure plate (4) is arranged above the piston (8), an O-ring (11) is arranged between the pressure plate (4) and the cover plate (2), the pad (1) is arranged on the upper part of the pressure plate (4), the sleeve (5) is arranged between the piston (8) and the oil cylinder (3), a piston rod sealing ring (6) is arranged on the outer side of the piston (8), the fixing ring (7) is arranged at the lower part of the piston rod sealing ring (6), the angle plate (9) is connected to one side of the oil cylinder (3), and the baffle (10) is fixedly connected to the angle plate (9); A signal sensor is arranged in the sensor joint hole (13), and the signal sensor is connected to an external signal processor. The pressure in the oil cylinder (3) is transmitted to the external signal processor via the signal sensor. An oil pipe is arranged at the oil circuit joint hole (12), and the oil cylinder (3) is connected to an external pump station via the oil pipe.

2. A special device for detecting the deflection of the slide and the platen of a press machine, Features: The device comprises a cover plate (2), an oil cylinder (3), a pressure plate (4), a sleeve (5), a piston rod sealing ring (6), a fixing ring (7), a piston (8), an angle plate (9), a baffle (10), an O-ring (11), an oil cylinder reset assembly, an oil circuit joint hole (12) and a sensor joint hole (13); the oil cylinder reset assembly comprises a handle (18), a screw (19), a claw (20), a pressure head (21), a cylindrical pin (22) and a rotary rod (23); The cover plate (2) is arranged on the oil cylinder (3), the piston (8) is arranged in the oil cylinder (3), a pressure plate (4) is arranged above the piston (8), an O-ring (11) is arranged between the pressure plate (4) and the cover plate (2), the sleeve (5) is arranged between the piston (8) and the oil cylinder (3), a piston rod sealing ring (6) is arranged on the outside of the piston (8), the fixing ring (7) is arranged at the bottom of the piston rod sealing ring (6), the angle plate (9) is connected to one side of the oil cylinder (3), and the baffle (10) is fixedly connected to the angle plate (9); Screws (19) are provided at both ends of the handle (18), the rotary rod (23) is connected to the lower part of the handle (18), the lower end of the rotary rod (23) is connected to the pressure head (21) through a cylindrical pin (22), the rotary rod (23) is rotated to make the pressure head (21) contact with the pressure plate (4), and the clamping claw (20) is provided on the side of the oil cylinder (3) and is clamped and fixed with the cover plate (2); A signal sensor is arranged in the sensor joint hole (13), and the signal sensor is connected to an external signal processor. The pressure in the oil cylinder (3) is transmitted to the external signal processor via the signal sensor. An oil pipe is arranged at the oil circuit joint hole (12), and the oil cylinder (3) is connected to an external pump station via the oil pipe.

3. A method for measuring the deflection of a press slide and a platen according to claim 1 or 2, Features: The steps include: 1) placing a plurality of oil cylinders (3) symmetrically on a workbench (14), and resetting the pistons (8) using an oil cylinder resetting assembly before use; 2) Installing the signal sensor into the sensor connector hole (13), and connecting the signal sensor to an external signal processor, transmitting the pressure in the oil cylinder (3) to the external signal processor via the signal sensor; and connecting the oil cylinder (3) to an external pump station via a high-pressure oil pipe; 3) Open the slide of the press machine to the bottom dead center, adjust the die height of the slide so that the slide fits the pad (1) or the pressure plate (4), and pressurize the cylinder (3) through the external pump station. Pay attention to the tonnage display and stop when there is a number. 4) arranging the stand (16) horizontally on the workbench (14), setting a plurality of dial indicators (17) on the stand (16), and returning the dial indicators (17) to zero; 5) The oil cylinder (3) is loaded 4-5 times by an external pump station until the designed tonnage of the machine tool is reached and the tonnage is monitored. The entry of hydraulic oil causes the piston (8) to rise, and the force is transmitted to the bottom surface of the slider through the pad (1) or the pressure plate (4), causing the slider to deform. The value of the dial indicator (17) is recorded at each loading, and the disturbance of the slider and the worktable (14) is calculated using the disturbance calculation formula.

4. The measuring method of the press slide and platen deflection detection device according to claim 3, Features: The force of the oil cylinder (3) is 500T, and the number of the oil cylinders (3) is 4-8.

5. The measuring method of the press slide and platen deflection detection device according to claim 3, Features: The dial indicator (17) is tangent to the bottom surface of the slider and the surface of the workbench (14), cuts to a depth of 6-7 mm, and then returns to zero.

6. The measuring method of the press slide and platen deflection detection device according to claim 3, Features: The plurality of dial indicators (17) are arranged on one side of the workbench (14), and the plurality of dial indicators (17) are symmetrically arranged in pairs.

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