KR20170079822A - Cylinder apparatus with fixing flange in which outer force sensing facility embedded - Google Patents

Cylinder apparatus with fixing flange in which outer force sensing facility embedded Download PDF

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Publication number
KR20170079822A
KR20170079822A KR1020150190802A KR20150190802A KR20170079822A KR 20170079822 A KR20170079822 A KR 20170079822A KR 1020150190802 A KR1020150190802 A KR 1020150190802A KR 20150190802 A KR20150190802 A KR 20150190802A KR 20170079822 A KR20170079822 A KR 20170079822A
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KR
South Korea
Prior art keywords
load cell
rod
cylinder
support frame
fixed
Prior art date
Application number
KR1020150190802A
Other languages
Korean (ko)
Inventor
주상완
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주상완
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Application filed by 주상완 filed Critical 주상완
Priority to KR1020150190802A priority Critical patent/KR20170079822A/en
Publication of KR20170079822A publication Critical patent/KR20170079822A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0076—Force sensors associated with manufacturing machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes

Abstract

The present invention relates to a pneumatic or electromechanical linear drive cylinder and a rotary drive cylinder device in which a workpiece is placed; A support frame positioned at an upper side of the base and maintaining a constant interval; A load cell member fixedly installed at both ends of the load cell by the support frame and having a load cell body at the center thereof; And a linear or rotary driving cylinder fixed to the load cell body and having a pressing rod operated in a downward direction or a rotating direction by a pneumatic pressure or an electric force, wherein a part of the cutting is performed between the load cell body and the load cell fixing part And a plurality of strain gauges are fixedly installed on the cutting portion so that the working force acting between the linear or rotary drive cylinder fixedly mounted on the frame by the load cell and the workpiece is precisely measured, Wherein a linear or rotary drive cylinder is installed in the air with the load cell body in a state where the both end load cell fixation portions of the load cell member are fixed to the support frame, The load cell member is deformed by the reaction force of the pressing rod When occur, there is an effect that to enable precision work by precisely measuring the degree of strain to the strain gage.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cylinder apparatus having a fixed mounting flange with an external force measuring function,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic or electromechanical linear drive cylinder and a rotary drive cylinder device, and more particularly to a pneumatic / hydraulic cylinder and a rotary drive cylinder device, The present invention relates to a cylinder device having a fixed mounting flange with an external force measuring function for precisely measuring the working force acting between the cylinder and the cylinder.

Generally, a load cell is used as a precision measuring sensor of a force in a tensile test and a compression test in a performance testing apparatus such as a tensile force, a compressive force and a shearing force of a material or a part. The load cell outputs a strain state of the sensing unit, The tensile force, the compressive force, and the shear force of the steel sheet can be measured.

On the other hand, various kinds of press apparatuses are selectively used in the press work depending on the object to be worked and the type of work to be used. Such a press apparatus is roughly divided into a mechanical press apparatus and a hydraulic press apparatus according to the driving method.

The mechanical press apparatus uses a mechanism such as a crank, a cam, a screw, a rack, and a link, and a small press apparatus equipped with a power transmission mechanism such as a screw or a link is mainly used.

The hydraulic press apparatus uses a hydraulic pump, a hydraulic cylinder, a hydraulic pipe for connecting them, and various kinds of control valves. It is advantageous to generate a large pressing force, It is mainly used.

Generally, a hydraulic press is used for a work requiring a large force such as precision press-fitting of a mechanical part such as a bearing, a pin shaft, an oil seal, or the like, or precision caulking work.

However, as is commonly known, the hydraulic press apparatus is simple in structure and can easily control the magnitude, speed, direction, etc. of the generated force, is capable of continuously variable transmission and remote operation, There are advantages.

1 (a) and 1 (b) show a load cell and a linear gauge according to the related art, respectively, as disclosed in Japanese Laid-Open Patent Publication No. 10-2001-0066574 And a coupling pressure detecting means for checking the coupling pressure at the same time and having coupling depth detecting means for checking the coupling length of the bearing 2 on the main board of the press 10 The coupling depth detecting means is coupled to the press-in rod 4 and simultaneously flows when the press-in rod 4 is flowing, so that the coupling depth is measured by pushing the head portion 31 of the linear gauge 30.

The conventional technique includes a plate type press board 10, a linear gauge 30 as a length measuring sensor is provided on one side of the press substrate 10 and a press-in rod 4 as a bearing press- A hydraulic cylinder 20 for providing a hydraulic pressure to the press-in rod 4 and a load cell 3 as a pressure-sensitive sensor are installed, and a depth detecting plate 40 is coupled to one end of the press- So as to flow upward and downward in accordance with the flow of the indentation rod (4).

In the operation of the related art as described above, a bearing 2 and a spindle for coupling the bearing 2 are provided, and a pressure is applied to the bearing 2 on the bearing 2, And the press-in rod 4 to be engaged with the protruding portion 1 of the press-in rod 4 vertically flows. At this time, when the press-in rod 4 descends due to the descent of the hydraulic cylinder 20, the load cell 3 installed between the hydraulic cylinder rod 21 and the press-in rod 4 checks the pressure applied to the bearing 2 And the depth detecting plate 40 provided at the outer periphery of the press-in rod 4 descends at the same time and presses the head 31 of the linear gauge 30 to simultaneously check the depth of the bearing 2 .

However, the above-described conventional technique requires relatively expensive control devices such as a solenoid valve, a linear gauge and a sensor, etc. in order to precisely control the position of the press-in rod operated by the hydraulic cylinder and precisely control the pressing force. It has a disadvantage that it takes a lot of time.

KR 10-2001-0066574 A 2001.07.11.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art, and it is an object of the present invention to provide a pneumatic pressure control apparatus and a pneumatic pressure control method which are supported on a fixed frame by a load cell for realizing precise position control and precise pressing force control, And a fixed mounting flange incorporating an external force measuring function for measuring a load cell load value by measuring a change value of a load cell member deformed by a reaction force transmitted as a reaction when a pressure rod on which a pressure of the cylinder acts is transmitted to a workpiece And to provide a cylinder device.

In addition, a problem to be solved by the present invention is that a load cell supports a fixed frame to realize precise position control and precise pressing force control, and when a rotating force by a pneumatic or electric rotary driving cylinder is transmitted to a workpiece by a rotating rod, Which measures the change value of the load cell member deformed by the reaction force transmitted to the load cell, and measures the load cell load value.

In addition, a problem to be solved by the present invention is to provide an apparatus and a method for controlling an internal combustion engine, which is capable of quickly and accurately examining a plurality of parts of the same standard in the production process of parts, It is an object of the present invention to provide a cylinder device having a mounting flange.

According to an aspect of the present invention, there is provided a cylinder apparatus having a stationary mounting flange with an external force measuring function, comprising: a base; A support frame positioned at an upper side of the base and maintaining a constant interval; A load cell member having load cell holders and load cell holders integrally formed at both ends thereof so as to be fixed to the support frame; And a linear driving cylinder fixed to the load cell body of the load cell member and having a pressing rod operated in a downward direction by hydraulic pressure.

A cylinder apparatus having a fixed mounting flange with an external force measuring function according to an embodiment of the present invention includes a base; A support frame positioned at an upper side of the base and maintaining a constant interval; A load cell member having load cell holders and load cell holders integrally formed at both ends thereof so as to be fixed to the support frame; And a rotation driving cylinder fixed to the load cell body of the load cell member and having a rotating rod rotationally driven by a pneumatic pressure or an electric force; And a control unit.

In the cylinder apparatus having the fixed mounting flange with the external force measuring function according to the embodiment of the present invention, the rod-shaped member is formed with a rod-opening bore at a central portion thereof so that the pressing rod of the linear- A load cell body having a plurality of tee rod fixing holes; A load cell fixing unit having a plurality of fixing bolt holes formed at both ends of the load cell body; A plurality of cuts partially cut between the load cell body and the load cell holder; And a plurality of strain gages fixed to the cutting portion.

In the cylinder apparatus having the fixed mounting flange with the built-in external force measuring function according to the embodiment of the present invention, the linear drive cylinder is actuated by the pressure of the hydraulic oil so that the piston is slidably operated to linearly move the pressing rod Cylinder pipe; An upper body supporting an upper end of the cylinder pipe and having a plurality of holes or holes A; A lower body supporting a lower end of the cylinder pipe and having a plurality of joints or bores formed therein and a load cell member closely attached to a lower end thereof; And a plurality of teed bolts penetratingly fixing the upper body, the lower body, and the load cell member so as to integrally fix the upper body, the lower body, and the load cell member.

In the cylinder device having the fixed mounting flange with the built-in external force measuring function according to the embodiment of the present invention, the linear driving cylinder is characterized in that a seal ring is installed in the rod-out hole of the load cell body coupled with the lower body .

According to the present invention, it is possible to simplify the structure in accordance with the reduction of the installation parts by replacing the fixed flange at the time of fixing the linear or rotary drive cylinder supported by the support frame with the load cell member, .

According to the present invention, a straight or rotary driving cylinder is floated in the air together with the load cell body in a state where the both-end load cell fixing portion of the load cell member is fixed to the support frame, and the load cell member is supported by the reaction force of the pressing rod or the rotating rod When the deformation occurs, the degree of deformation is precisely measured with a strain gauge to enable precision work.

1 is a perspective view showing a press-pressure determining apparatus according to the prior art.
2 is a perspective view of a linear drive cylinder device having a fixed mounting flange with an external force measurement function according to an embodiment of the present invention;
3 is a bottom perspective view showing the bottom of Fig.
4 is an exploded perspective view of a cylinder device having a fixed mounting flange incorporating an external force measuring function according to the present invention.
5 is an operational state diagram of a linear driving cylinder apparatus having a fixed mounting flange with an external force measuring function according to an embodiment of the present invention,
a) shows the state immediately before the pressing rod approaches and presses the workpiece,
b) shows a state in which the load cell is deformed by the reaction force after the pressing rod presses the workpiece.
6A and 6B are schematic views of a rotation driving cylinder device having a fixed mounting flange with an external force measuring function according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As an embodiment of the present invention, a cylinder device for linear driving will be described.

FIG. 2 is a perspective view of a linear drive cylinder apparatus having a fixed mounting flange with an external force measuring function according to an embodiment of the present invention, FIG. 3 is a bottom perspective view showing the bottom of FIG. 2, FIG. 5 is an operational state diagram of a linear drive cylinder device having a fixed mounting flange with an external force measuring function according to an embodiment of the present invention. FIG. , a) shows a state immediately before the pressurizing rod approaches and pressurizes the work, and b) shows a state where the load cell is deformed by the reaction force after the pressurizing rod presses the work.

In one embodiment of the present invention, a linear drive cylinder 100 for pressing a support frame 300 positioned at a predetermined height from a base 400 on which a workpiece 500 is placed is fixedly mounted on a load cell member 200 So that the support frame 300 and the linear driving cylinder 100 are coupled to each other.

Accordingly, the pressure of the pressing rod 110 of the linear driving cylinder 100 is transmitted to the workpiece 500, and at the same time, the reaction force generated by the reaction is measured to deform the load cell by the reaction force, By measuring the reaction force value with the strain gauge, the structure of the press apparatus can be easily constructed, and very precise measurement can be performed.

The main constitution of this embodiment of the present invention is composed of a base 400 constituting a press apparatus, a support frame 300, a load cell member 200 and a linear drive cylinder 100.

5A, the base 400 refers to a portion where the workpiece 500 is placed during operation by the cylinder device, and may be configured in various forms according to the workpiece 500.

The support frame 300 is a frame part of a cylinder device that maintains a predetermined distance from the base 400 in order to perform work by the cylinder device of the present invention, to be.

That is, the support frame 300 maintains a stationary state at a predetermined position on the upper side of the base 400, and is a unitary structure that maintains a certain distance from the base 400, And a driving cylinder 100 is installed to apply pressure to the workpiece 500 placed on the base 400.

However, in the embodiment of the present invention, as shown in FIG. 5A, the support frame 300 and the linear driving cylinder 100 are not directly coupled but are coupled with each other by the load cell member 200.

4, the load cell 200 includes a central portion of the load cell body 210, load cell fixing portions 220 and both sides of the cut portion 230, A gauge 240 is attached and installed.

The load cell body 210 is formed with a rod draw-out hole 211 at a central portion for pulling out the push rod 110 of the linear driving cylinder and has a plurality of te rod fixing holes 212 in the periphery thereof .

3, the linear driving cylinder 100 is fixedly mounted on the load cell body 210, and the linear driving cylinder 100 is fixed to the load cell body 210 through the rod- And the teed rod bolt 150 fixes the linear driving cylinder 100 and the lead shell body 210 integrally with each other through the teed rod fixing hole 212 of the periphery.

The load cell fixing part 220 is provided at both ends of the load cell body 210 and has a plurality of fixing bolt holes 221 formed therein. And is fixed with a fixing screw 310 in a state of being mounted.

Accordingly, since the linear driving cylinder 100 is coupled to the load cell body 210 and the load cell fixing unit 220, which is both sides of the load cell body 210, is fixed to the support frame 300, The driving cylinder 100 is installed in a floating state in the air by the load cell member 200.

4, the cut part 230 is formed as a part of a cut part between the load cell body 210 and the load cell fixing part 220 and has a plurality of through holes.

That is, the cutting part 230 is formed to be relatively weak in physical strength as compared with the load cell body 210 and the load cell fixing part 220, so that the cutting part 230 can be relatively easily deformed. A strain gauge 240 is provided for measuring the strain gauge.

The linear driving cylinder 100 includes a pressing rod 110 fixed to the load cell member 200 and operated in a downward direction by a hydraulic pressure or an electric force.

The linear driving cylinder 100 includes a pressing rod 110, a cylinder pipe 120, an upper body 130, a lower body 140, and a plurality of tee rod bolts 150.

When the linear drive cylinder 100 is operated by hydraulic oil, the cylinder pipe 120 is actuated by the pressure of the hydraulic oil, so that the piston is provided inside to linearly move the pressing rod 110, And is connected to the hydraulic line so that hydraulic oil is supplied and recovered by a separate hydraulic line.

In addition, when the linear driving cylinder 100 is operated by an electric motor, a linear motor or a driving motor screw device for converting electric energy into linear kinetic energy is incorporated in the cylinder pipe 120.

The upper body 130 supports the upper end of the cylinder pipe 120 and has a plurality of holes or holes A (131).

The lower body 140 supports a lower end of the cylinder pipe 120 and is formed with a plurality of holes or bores 141. The lower end of the lower body 140 closely contacts the load cell 200.

The T rod bolt 150 is integrally fixed to the upper body 130 through the lower body 140 and the load cell 200. The T rod bolt 150 includes a plurality of bolts and a plurality of nuts 151, As shown in FIG.

A seal ring 160 is installed between the rod draw-out holes 211 of the load cell body 210 coupled with the lower body 140 of the linear driving cylinder 100.

Hereinafter, the operation and effect of the embodiment according to the present invention will be described.

FIG. 5 is an operational state diagram of a press apparatus to which a load cell is attached to a fixed frame according to the present invention, in which FIG. 5a shows a state immediately before the pressing rod approaches and presses the workpiece, 5A shows a state in which the load cell is deformed by a reaction force after pressing the workpiece 500 in a state where the workpiece 500 is placed on the base 400 as shown in FIG. The pressing rod 110 of the linear driving cylinder 100 is lowered to press the workpiece 500.

Since the linear driving cylinder 100 is lifted in the air by the load cell 200, when the pressure rod 110 of the linear driving cylinder 100 contacts the work 500, A reaction force of the same size and the opposite direction is applied to the pressing rod 110 from the working article 500 by the law of reaction.

The reaction force transmitted by the pressing rod 110 is transmitted to the linear driving cylinder 100 and is transmitted to the supporting frame 300 through the linear driving cylinder 100 and the fixed load cell member 200 .

Since the support frame 300 is in a fixed state in which it does not move relative to the base 400, the load cell fixing unit 220, which is integrally fixed by the base 400 and the fixing screw 310, .

Therefore, the load cell fixing body 220 fixed to the support frame 300, which is fixed to the fixed body of the load cell body 210 coupled with the linear driving cylinder 100, Therefore, the load cell member 200 including the load cell body 210 and the load cell fixing unit 220 is deformed as shown in FIG. 5B).

That is, since the cutting portion 230 provided between the load cell body 210 and the load cell fixing portion 220 has a relatively weak physical strength, the deformed portion is most severely affected by reaction force.

Therefore, since a plurality of strain gauges 240 are installed in each part of the cutting part 230, the deformation value of each part is precisely measured to calculate an accurate reaction force value.

The reaction force value measures the reaction force acting in response to the pressing force as soon as the pressing rod 110 touches and presses the workpiece 500. At this time, the deformation value of the load cell at the moment when the load cell is deformed, And the final reaction force value is calculated by collecting the measured reaction force values.

The technique for finally calculating the reaction force value measured by the strain gauge is a general technique, and thus a detailed description thereof will be omitted.

In the embodiment of the present invention, when a plurality of articles to be maintained in a uniform state are inspected, it is possible to distinguish an article for which a reaction force value deviating from an average value is measured as an abnormal article.

Therefore, in the embodiment according to the present invention, when the same part is press-fitting, when the reaction force generated from the specific part is relatively larger or smaller than the other parts, it is determined that the part exhibiting the different reaction force value is defective, .

The present invention can also be applied to a cylinder device rotating and driven as another embodiment.

6 is a schematic block diagram of a rotation driving cylinder apparatus having a fixed mounting flange with an external force measuring function according to another embodiment of the present invention.

The rotary drive cylinder device includes a base 400 and a support frame 300 positioned at an upper portion of the base and spaced apart from the support frame 300. The load cell holder is fixed to the support frame at both ends thereof, And a rotation drive cylinder 101 fixed to the load cell body of the load cell member and having a rotation rod 111 driven to rotate by a pneumatic pressure or an electric force.

That is, when the rotary drive cylinder 101 is fixed to the support frame 300 located on the upper side of the base 400 on which the workpiece 500 is placed, And the rotation drive cylinders 101 are coupled to each other.

Therefore, the rotational force of the rotary rod 111 of the rotary drive cylinder 101 is transmitted to the workpiece 500, and the reaction force generated by the reaction is measured, so that the load cell is deformed by the reaction force, By measuring the reaction force value with the strain gauge, the structure of the press apparatus can be easily constructed, and very precise measurement can be performed.

The rotary drive cylinder 101 is fixed to the load cell member 200 and includes a rotary rod 111 that is rotationally operated by hydraulic pressure or electric power.

Therefore, a hydraulic motor or an electric motor (not shown) is built in the rotary drive cylinder 101.

That is, when the rotary drive cylinder 101 is operated by hydraulic oil, the cylinder pipe 120 is provided with a hydraulic motor inside the cylinder pipe 120 to rotate the rotary rod 111 by the pressure of the hydraulic oil, And is connected to a hydraulic line so that hydraulic oil is supplied and recovered by a separate hydraulic line.

In addition, when the rotary drive cylinder 101 is operated by a rolling force, a drive motor and a speed reducing device for converting electric energy into rotational kinetic energy are incorporated in the cylinder pipe 120.

Hereinafter, the operation and effect of another embodiment according to the present invention will be described.

The workpiece 500 fixed to the base 400 and the rotary workpiece 501 which is relatively rotatable with respect to the workpiece 500 are placed on the base 400 as shown in FIG. When hydraulic fluid or power is supplied to the cylinder 101, the rotary rod 111 of the rotary drive cylinder 101 rotates and applies rotational pressure to the rotary work 501.

Since the rotary drive cylinder 101 is lifted in the air by the load cell member 200 when the rotary rod 111 of the rotary drive cylinder 101 applies rotational pressure to the rotary workpiece 501 A reaction force of the same size and the opposite direction is applied to the rotary rod 111 from the rotary workpiece 501 by the law of reaction.

The reaction force transmitted by the rotation rod 111 is transmitted to the rotation driving cylinder 101 and is transmitted to the support frame 300 through the rotation driving cylinder 101 and the fixed load cell member 200.

Therefore, different forces are exerted on the load cell fixing unit 220 fixed to the support frame 300, which is fixed to the fixed body of the load cell body 210, which is coupled to the rotation driving cylinder 101, Therefore, the load cell member 200 composed of the load cell body 210 and the load cell fixing unit 220 is deformed.

Therefore, since a plurality of strain gauges 240 are installed in each part of the load cell member 200, the deformation value of each part is precisely measured to calculate a correct reaction force value.

The reaction force value measures the reaction force acting in response to the instantaneous pressing force by which the rotary rod 111 rotates the workpiece 500. At this time, the deformation value of the load cell at the moment the deformation of the load cell is measured, And the final reaction force value is calculated by collecting the measured reaction force values.

The cylinder device having the fixed mounting flange with the external force measuring function is a rotary drive cylinder device that can be applied when it is necessary to tighten a screw with a uniform torque or to determine a uniform rotational force.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Linear drive cylinder 101: Rotary drive cylinder
110: pressing rod 111: rotating rod
120: Cylinder pipe
130: Upper body 131: Coupling or thread A
140: Lower body 141: Coupling screw hole B
150: tee rod bolt 151: nut
160: Sealing
200: Load cell member
210: load cell body 211: rod draw-out ball
212: Tee rod fixing hole
220: load cell fixing portion 221: fixing bolt hole
230: cutting portion 240: strain gauge
300: Support frame 310: Fixing screw
400: Base
500: Work item

Claims (5)

A base 400;
A support frame 300 positioned at the upper side of the base 400 and maintaining a constant interval;
A load cell member 200 integrally formed at both ends with a load cell fixing part 220 and a load cell body 210 at the center so as to be fixed to the support frame 300; And
A linear driving cylinder 100 fixed to the load cell body 210 of the load cell 200 and having a pressing rod 110 operated in a downward direction by a pneumatic or electromotive force;
And a stationary mounting flange with an external force measuring function incorporated therein. A base 400;
A support frame 300 positioned at an upper portion of the base and maintaining a predetermined interval;
A load cell member 200 integrally formed at both ends with a load cell fixing part and a load cell body at the center so as to be fixed to the support frame; And
A rotary drive cylinder 101 fixed to the load cell body of the load cell member and having a rotary rod 111 rotatably driven by a hydraulic or hydraulic force;
And a stationary mounting flange with an external force measuring function incorporated therein. 3. The method according to claim 1 or 2,
The load cell member (200)
A load cell body 210 having a rod draw-out hole 211 formed at a central portion thereof and having a plurality of Ti rod fixing holes 212 in a periphery thereof so that the pressing rod 110 of the linear driving cylinder 100 can be drawn out and operated;
A load cell fixing unit 220 having a plurality of fixing bolt holes 221 formed at both ends of the load cell body 210;
A plurality of cuts 230 partially cut between the load cell body 210 and the load cell fixture 220; And
A plurality of strain gages 240 fixed to the cuts 230;
And a stationary mounting flange with an external force measuring function incorporated therein. The method according to claim 1,
The linear drive cylinder (100)
A cylinder pipe (120) in which a piston is slidably operated to linearly move the pressing rod (110) by a pressure of hydraulic oil;
An upper body 130 supporting the upper end of the cylinder pipe 120 and having a plurality of holes or holes A (131) formed therein;
A lower body 140 supporting a lower end of the cylinder pipe 120 and having a plurality of joints or bores 141 drilled therein and a load cell member 200 being closely attached to a lower end thereof;
A plurality of tee rod bolts 150 penetratingly fixing the upper body 130, the lower body 140, and the load cell 200 so as to integrally fix them;
And a stationary mounting flange with an external force measuring function incorporated therein. 5. The method of claim 4,
The linear drive cylinder (100)
Wherein a seal ring (160) is installed in a rod outlet hole (211) of a load cell body (210) coupled to the lower body (140).
KR1020150190802A 2015-12-31 2015-12-31 Cylinder apparatus with fixing flange in which outer force sensing facility embedded KR20170079822A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108183413A (en) * 2017-11-30 2018-06-19 国家电网公司 A kind of bushing shell for transformer lead disconnects specific purpose tool
KR20180115056A (en) * 2017-04-12 2018-10-22 주식회사 지엠에스 Filter pressure input detection device of ABS valve for vehicle
KR101956484B1 (en) * 2017-12-21 2019-06-24 한화큐셀앤드첨단소재 주식회사 Stay nut tab inspection equipment
CN110109412A (en) * 2019-06-04 2019-08-09 珂黎艾(上海)环保科技有限公司 A kind of dosing control unit of vehicle tail gas emission control clarifier production
KR102034128B1 (en) * 2018-10-16 2019-10-18 세종뉴텍 주식회사 Table-type press apparatus
KR102260331B1 (en) * 2020-03-12 2021-06-03 주식회사 노아 엑츄에이션 Load tester for linear actuator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180115056A (en) * 2017-04-12 2018-10-22 주식회사 지엠에스 Filter pressure input detection device of ABS valve for vehicle
CN108183413A (en) * 2017-11-30 2018-06-19 国家电网公司 A kind of bushing shell for transformer lead disconnects specific purpose tool
KR101956484B1 (en) * 2017-12-21 2019-06-24 한화큐셀앤드첨단소재 주식회사 Stay nut tab inspection equipment
KR102034128B1 (en) * 2018-10-16 2019-10-18 세종뉴텍 주식회사 Table-type press apparatus
CN110109412A (en) * 2019-06-04 2019-08-09 珂黎艾(上海)环保科技有限公司 A kind of dosing control unit of vehicle tail gas emission control clarifier production
KR102260331B1 (en) * 2020-03-12 2021-06-03 주식회사 노아 엑츄에이션 Load tester for linear actuator

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