A measuring tool

Abstract

The present invention discloses a measuring tool, including a spindle rod and a displacement gauge attachment, wherein the right side of the spindle rod extends to the interior of the displacement gauge attachment and is fixedly connected by a positioning pin, a digital pressure display screen is installed on the left side of the top surface of the spindle rod, a pressure sensor is installed on the left side of the spindle rod, a left top head is installed on the left side of the pressure sensor, and a digital displacement display screen is installed on the left side of the top of the displacement gauge attachment. The present invention has the advantages of simple structure and convenient use by arranging the left top head, the pressure sensor, the digital pressure display screen, the positioning bolt, the spindle rod, the grating sensor moving ruler, the positioning pin, the digital displacement display screen, the displacement gauge attachment, the floating handle and the right top head for coordinated use, and solves the problem that the existing measuring tools are very troublesome to disassemble and assemble due to structural attachment during measurement, resulting in low measurement efficiency, thereby causing the measuring tools to delay the measurement progress.

Description

Technical Field

[0001] The invention relates to the technical field of engine assembly, in particular to a measuring tool. Background Art

[0002] In the engine nozzle assembly profession, a tool is needed to measure the spatial dimensions between parts under the condition of support force limitation requirements. At present, there is no tool measuring tool that can be used as a reference in this field in China, so it is necessary to develop a measuring tool with force and distance measuring functions to achieve the measurement requirements of this state; specific requirements: during the engine nozzle debugging test, there are two folding mechanism components, and relative movement occurs when the hydraulic pipeline is supplied with oil. At this time, it is necessary to measure the spatial distance between the hinge points of the two parts. Since the actuator does not move into place under the hydraulic oil supply state, it is necessary to eliminate the idle stroke based on the external force, that is, while measuring the distance between the two, it is also necessary to provide an external force of the design requirement to ensure the elimination of the idle stroke to achieve the measurement of the distance and external force of the parts. Due to the special structure of the parts, the distance between the two hinge points cannot be directly measured using conventional measuring tools such as vernier calipers, and it is also necessary to develop a top screw structure to complete the measurement.

[0003] At present, in most cases, the measurement is achieved by using the general traditional method. The traditional method is to use a special screw tool to adjust the measurement characteristics of the two products, adjust the space distance between the parts, and then move the screw structure out. Use a caliper to measure the spacing in a spacious area. At the same time, in order to eliminate the idle stroke during measurement, the external force of the operator will be used to eliminate the idle stroke between the motion mechanisms. The existing disadvantages are as follows:

[0004] The operator's manpower eliminates the empty stroke. The size of the external force will vary depending on the operator's operating method and the different workers. The most important thing is that the size of the external force cannot be detected. Therefore, the stroke cannot be completely eliminated due to insufficient external force or the parts are deformed due to excessive external force, which ultimately leads to inaccurate measurement of spatial distance.

[0005] Use the top screw structure to measure the spatial distance, then take out the top screw and use a caliper to measure the distance of the top screw in a spacious area, and then measure the next set of data. The reciprocating disassembly is very troublesome, which greatly reduces the measurement efficiency and delays the progress of component measurement. Summary of the invention

[0006] The purpose of the present invention is to provide a measuring tool with the advantages of simple structure and easy use, which solves the problem that the existing measuring tools are very troublesome to disassemble and assemble due to structural attachment during measurement, resulting in low measurement efficiency, thereby causing the measuring tools to delay measurement progress.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a measuring tool, comprising a spindle rod and a displacement gauge attachment, the right side of the spindle rod extends to the interior of the displacement gauge attachment and is fixedly connected by a locating pin, a digital pressure display screen is installed on the left side of the top surface of the spindle rod, a pressure sensor is installed on the left side of the spindle rod, a left top head is installed on the left side of the pressure sensor, a digital displacement display screen is installed on the left side of the top of the displacement gauge attachment, a grating sensor moving ruler is transversely penetrated on the displacement gauge attachment and located at the bottom of the digital displacement display screen, a floating handle is threadedly connected to the right side of the inner cavity of the displacement gauge attachment, and the right side of the floating handle penetrates to the right side of the displacement gauge attachment and is installed with a right top head.

[0008] Preferably, the left side of the pressure sensor extends to the right side of the inner cavity of the left mandrel and is threadedly connected to the inner cavity of the left mandrel, and the right side of the pressure sensor extends to the left side of the inner cavity of the main shaft and is threadedly connected to the left side of the inner cavity of the main shaft.

[0009] Preferably, an insert block is fixedly connected to the right side of the main shaft rod, a socket is provided on the left side of the displacement measuring tool accessory, and the right side of the insert block extends to the inner cavity of the socket and is in sliding contact with the inner cavity of the socket.

[0010] Preferably, positioning bolts are installed on both sides of the top of the grating sensor moving ruler, and positioning screw holes used in conjunction with the positioning bolts are opened on both sides of the top surface of the grating sensor moving ruler, and the bottom of the positioning bolts penetrates to the bottom of the grating sensor moving ruler.

[0011] Preferably, the left side of the right head extends to the inner cavity of the traveling handle and is connected to the inner cavity of the traveling handle through threads.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention has the advantages of simple structure and convenient use by arranging a left top, a pressure sensor, a digital pressure display screen, a positioning bolt, a main shaft rod, a grating sensor movable ruler, a positioning pin, a digital displacement display screen, a displacement measuring tool accessory, a floating handle and a right top. It solves the problem that the existing measuring tools are very troublesome to disassemble and assemble due to structural attachment during measurement, resulting in low measurement efficiency, thereby causing the measuring tools to delay the measurement progress. The present invention is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the present invention;

[0016] Figure 3It is a front view of the structure of the present invention;

[0017] Figure 4 It is a bottom view of the structure of the present invention;

[0018] Figure 5 For the present invention Figure 4 Middle AA section view.

[0019] In the figure: 1 left jack, 2 pressure sensor, 3 digital pressure display screen, 4 positioning bolt, 5 spindle rod, 6 grating sensor moving ruler, 7 positioning pin, 8 digital displacement display screen, 9 displacement measuring tool attachment, 10 movable handle, 11 right jack. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-5A measuring tool comprises a spindle rod 5 and a displacement gauge attachment 9. The right side of the spindle rod 5 extends to the interior of the displacement gauge attachment 9 and is fixedly connected by a positioning pin 7. An insert block is fixedly connected to the right side of the spindle rod 5. A socket is provided on the left side of the displacement gauge attachment 9. The right side of the insert block extends to the inner cavity of the socket and is in sliding contact with the inner cavity of the socket. Through the cooperation of the insert block and the socket, it is convenient to connect the spindle rod 5 and the displacement gauge attachment 9. Pin holes are penetrated on the insert block and the front and rear sides of the inner cavity of the socket. The inner circle of the pin hole is tightly matched with the surface of the positioning pin 7. Through the pin hole, it is convenient to penetrate the insert block and the socket to connect the displacement gauge attachment 9 to the spindle rod 5. The positioning pin 7 connects the displacement gauge attachment 9 to the spindle rod 5. After installation, the two ends are flattened so that they cannot slide out of the pin hole. At the same time, during the force application process of the measuring tool, a rotational torque can be applied through the positioning pin 7 to promote the extension and contraction of the entire mechanism. A digital pressure display screen 3 is installed on the left side of the top surface of the spindle rod 5. A positioning card slot used in conjunction with the digital pressure display screen 3 is opened on the left side of the top surface of the spindle rod 5. A mounting plate is fixedly connected to the bottom of the inner cavity of the positioning card slot. The digital pressure display screen 3 is fastened to the mounting plate by screws. A pressure sensor 2 is installed on the left side of the spindle rod 5. A left top head 1 is installed on the left side of the pressure sensor 2. The left side of the pressure sensor 2 extends to the right side of the inner cavity of the left top head 1 and is threadedly connected to the inner cavity of the left top head 1. The right side of the pressure sensor 2 extends to the inner cavity of the spindle rod 5. The left side of the cavity is connected to the left side of the inner cavity of the main shaft rod 5 by a thread. The main shaft rod 5 is the main body of the measuring tool, provides installation support for the pressure measurement system and the displacement measurement system, and is threadedly connected to the movable handle 10. Through the tightening and loosening of the threads of the two, the entire measuring tool can be extended and shortened. A digital displacement display screen 8 is installed on the left side of the top of the displacement measuring tool accessory 9. A placement groove for use with the digital displacement display screen 8 is opened on the left side of the top surface of the displacement measuring tool accessory 9. A mounting plate is inlaid at the bottom of the inner cavity of the placement groove. The mounting plate is fastened to the digital displacement display screen 8 by screws. A moving notch for use with the grating sensor moving ruler 6 is opened horizontally on the surface of the top of the mounting plate. The displacement measuring tool accessory 9 and located at the digital position The bottom of the moving display screen 8 is laterally penetrated by a grating sensor moving ruler 6, and positioning bolts 4 are installed on both sides of the top of the grating sensor moving ruler 6. Positioning screw holes used in conjunction with the positioning bolts 4 are penetrated on both sides of the top surface of the grating sensor moving ruler 6. The bottom of the positioning bolt 4 penetrates to the bottom of the grating sensor moving ruler 6, and the surface of the bottom of the right positioning bolt 4 contacts the left side of the top surface of the floating handle 10. The grating sensor moving ruler 6 and the displacement measuring tool accessory 9 work on the principle of using the grating sensor moving ruler 6 to measure displacement. The grating sensor moving ruler 6 is divided into two parts. The first part is a fixed grating sensor and a chip display screen integrated component, which will display its displacement value on the digital display displacement display screen 8 after receiving an external signal.The second part is a component combining a moving grid sensor and a moving ruler. This part works together with the sensor of the first part to complete the acquisition of displacement signals and the display of readings. The sensors of the two parts move relative to each other to achieve the measurement and reading of displacement dimensions. The third part is a machined part customized according to the dimensions of the first two parts. This part provides support for the installation and combination of the first two parts, and also connects the adapter accessories of the entire measuring tool. The right side of the inner cavity of the displacement measuring tool accessory 9 is threadedly connected to a floating handle 10. The right side of the floating handle 10 penetrates to the right side of the displacement measuring tool accessory 9 and is installed with a right head 11. The left side of the right head 11 extends to the inner cavity of the floating handle 10 and is threadedly connected to the inner cavity of the floating handle 10. The movable handle 10 is a machined part. The inner hole at one end is connected to the main shaft rod 5 through a threaded fit, and the outer circle is clearance-matched with the displacement measuring tool accessory 9. There is an annular groove in the middle, which cooperates with the sinking limit of the grating sensor moving ruler 6. In addition, an external hexagon is provided to facilitate the application of external force during the tightening process; the other end is an internal thread, which provides a connection position for the installation of the plug. The left side of the left plug 1 is a plane, and the right side of the right plug 11 is a ball head. The left plug 1 and the right plug 11 are respectively installed at the two ends of the measuring tool to contact the part to be measured, the right side is a ball head, and the left side is a plane; the plane can make it in good contact with the part, and the spherical surface can make the tool flexibly aligned. The flat plug is threadedly connected to the pressure sensor 2, and the spherical plug is connected to the The movable handle 10 is threadedly connected, and the flat head has various specifications and lengths to solve the constraint of measuring distance caused by the fixed range value of the displacement variable and perform length compensation; Advantage 1 of the present application: the measuring tool can measure both force and displacement parameters at the same time, and traditional measuring tools cannot complete the measurement of two items, and the measurement results are all displayed digitally, which is convenient for reading, the results are reliable, and the numerical accuracy is high. At the same time, the tool has a simple structure, simple manufacturing, and easy use; Advantage 2: the measuring tool can successfully combine the displacement sensor and the mechanical sensor, and realize the transmission of pressure and displacement through the top screw structure, etc. Advantage 3: the measuring tool is easy to use in the actual measurement process, making the measurement more It is efficient and convenient; by setting the left top head 1, pressure sensor 2, digital pressure display screen 3, positioning bolt 4, spindle rod 5, grating sensor moving ruler 6, positioning pin 7, digital displacement display screen 8, displacement measuring tool attachment 9, floating handle 10 and right top head 11, it has the advantages of simple structure and convenient use, and solves the problem that the existing measuring tools are very troublesome to disassemble and assemble due to structural attachment during measurement, which makes the measurement efficiency low and causes the measurement tools to delay the measurement progress. It is worth promoting. The digital force measuring distance meter has a simple structure and is easy to use. When using it, according to different measuring lengths, a top head auxiliary support of corresponding length is prepared to achieve external force measurement and distance measurement. ;

[0022] When in use, the basic principle of the tool structure is to use the reading principle of mechanical sensors and displacement sensors; Displacement measurement: Before using the measuring tool, estimate the size L of the spacing to be measured for the target part, and select an appropriate head length so that the length L0 of the movable handle 10 at the minimum stroke and the tool measurement displacement range x meet:

[0023] L0<L<L0+x

[0024] Before measuring, the displacement sensor is cleared, and then the displacement and thrust in the axial direction are generated by the relative rotation of the main shaft rod 5 and the floating handle 10; the specific numerical pressure F on the digital pressure display screen 3 is adjusted to meet the design requirement pressure:

[0025] At this time, the spatial distance value is obtained: L 测 =L0+x

[0026] The pressure and displacement measurements are completed simultaneously.

[0027] All kinds of components used in this application document are standard parts and can be purchased on the market. The specific connection methods of each part adopt conventional means such as mature bolts, rivets and welding in the existing technology. Machinery, parts and electrical equipment all adopt conventional models in the existing technology. Circuit connections adopt conventional connection methods in the existing technology. Electrical equipment are connected to an external safe power supply, and no specific description is given here.

[0028] In summary: the measuring tool, by arranging the left top head 1, the pressure sensor 2, the digital pressure display screen 3, the positioning bolt 4, the main shaft rod 5, the grating sensor moving ruler 6, the positioning pin 7, the digital displacement display screen 8, the displacement measuring tool attachment 9, the floating handle 10 and the right top head 11 for coordinated use, solves the problem that the existing measuring tools are very troublesome to disassemble and assemble due to structural attachment during measurement, resulting in low measurement efficiency, thereby causing the measuring tools to delay the measurement progress.

Claims

1. A measuring tool, comprising a spindle rod (5) and a displacement measuring tool attachment (9), characterized in that: The right side of the spindle rod (5) extends into the interior of the displacement gauge attachment (9) and is fixedly connected via a positioning pin (7); a digital pressure display screen (3) is installed on the left side of the top surface of the spindle rod (5); a pressure sensor (2) is installed on the left side of the spindle rod (5); a left head (1) is installed on the left side of the pressure sensor (2); a digital displacement display screen (8) is installed on the left side of the top of the displacement gauge attachment (9); and a bottom horizontal portion of the digital displacement display screen (8) is located on the displacement gauge attachment (9). A grating sensor movable ruler (6) is provided through the movable handle (10), the inner hole at one end of the movable handle (10) is connected to the main shaft (5) through a threaded fit, the outer circle of the movable handle (10) is clearance-matched with the displacement measuring tool attachment (9), and an annular groove is provided in the middle position, which is matched with the sunken limit of the grating sensor movable ruler (6). The right side of the movable handle (10) passes through the right side of the displacement measuring tool attachment (9) and is installed with a right head (11), and the relative rotation of the main shaft (5) and the movable handle (10) generates axial displacement and thrust.

2. A measuring tool according to claim 1, characterized in that: The left side of the pressure sensor (2) extends to the right side of the inner cavity of the left top head (1) and is connected to the inner cavity of the left top head (1) via a thread, and the right side of the pressure sensor (2) extends to the left side of the inner cavity of the main shaft rod (5) and is connected to the left side of the inner cavity of the main shaft rod (5) via a thread.

3. A measuring tool according to claim 1, characterized in that: The right side of the main shaft (5) is fixedly connected to an insert block, the left side of the displacement measuring tool attachment (9) is provided with an insert hole, and the right side of the insert block extends to the inner cavity of the insert hole and is in sliding contact with the inner cavity of the insert hole.

4. A measuring tool according to claim 1, characterized in that: Positioning bolts (4) are installed on both sides of the top of the grating sensor movable ruler (6), and positioning screw holes for use with the positioning bolts (4) are opened through both sides of the top surface of the grating sensor movable ruler (6), and the bottom of the positioning bolt (4) penetrates to the bottom of the grating sensor movable ruler (6); the surface of the bottom of the right positioning bolt contacts the left side of the top surface of the movable handle (10).

5. A measuring tool according to claim 1, characterized in that: The left side of the right head (11) extends to the inner cavity of the movable handle (10) and is connected to the inner cavity of the movable handle (10) via a thread.

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