CN115420169B - End face distance measuring device and method - Google Patents
End face distance measuring device and method Download PDFInfo
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- CN115420169B CN115420169B CN202211116234.3A CN202211116234A CN115420169B CN 115420169 B CN115420169 B CN 115420169B CN 202211116234 A CN202211116234 A CN 202211116234A CN 115420169 B CN115420169 B CN 115420169B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 abstract description 7
- 241001422033 Thestylus Species 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses an end face distance measuring device and an end face distance measuring method. The measuring table comprises a working panel, a first stop block, a second stop block and a bearing piece, wherein the working panel is provided with a chute, the first stop block and the second stop block are respectively arranged at two ends of the chute, one end of the bearing piece is arranged in the chute, the other end of the bearing piece is in butt joint with the long needle valve, and the position of the bearing piece relative to the chute is adjustable; the clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece is arranged on the first stop block, the second clamping piece is arranged on the second stop block, the first clamping piece is in butt joint with the needle valve body, the second clamping piece is in butt joint with the valve sleeve, the position of the first clamping piece relative to the first stop block is adjustable, and the position of the second clamping piece relative to the second stop block is adjustable; the measuring meter is arranged on the measuring table and comprises a measuring needle, and the measuring needle is abutted with the shoulder blade surface of the valve sleeve. The end face distance measuring device is high in measuring accuracy and high in universality.
Description
Technical Field
The invention relates to the technical field of end face distance measurement, in particular to an end face distance measurement device and an end face distance measurement method.
Background
The long needle valve component of the fuel injector has no static leakage structure, which is beneficial to improving injection pressure and reducing fuel consumption. For the fuel injector adopting the long needle valve component, the dispersion difference of the needle valve lift is required to be controlled in order to improve the consistency of the fuel injection quantity, so that the requirement on the measurement precision of the needle valve lift is higher in the research and development and production processes of the fuel injector.
Needle valve lift is the difference between the distance from the concave end face of the oil sprayer body to the small end face and the distance from the concave end face of the oil sprayer body to the small end face of the long needle valve assembly, the distance from the concave end face of the oil sprayer body to the small end face is generally measured through a height meter, the measuring accuracy can meet the requirements, the distance from the end face of the long needle valve assembly is the distance between the shoulder blade face of the valve sleeve and the large end face of the needle valve body, the required measuring accuracy is high, and the distance from the end face of the long needle valve assembly is mainly measured in two ways at present:
(1) The measurement is completed through three coordinates, the precision of the measuring mode of the end face distance of the long needle valve assembly is higher, the needle valve lift can be controlled within a certain dispersion, but the measuring method is not suitable for batch assembly, in addition, in the test development stage, when the long needle valve assembly part is replaced, the needle valve lift is changed, and the three coordinates are adopted at the moment to measure the lower efficiency, so that the product development progress is influenced;
(2) The end face distance measuring device is adopted for measuring, but the existing end face distance measuring device adopts the measuring principle of fixed length plus relative distance to determine the end face distance of the long needle valve assembly, the measuring mode belongs to indirect measurement, the measuring efficiency is low, the needle valve body is required to be supported by hands in the testing process, the thought error exists, the measuring precision is difficult to guarantee, and the universality is poor.
Therefore, it is desirable to provide an end face distance measuring device and method for solving the above problems.
Disclosure of Invention
According to one aspect of the invention, the invention provides an end face distance measuring device which adopts a direct measurement mode, has higher measurement precision and measurement efficiency, and has a simple structure and higher universality.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the terminal surface distance measuring device for the terminal surface distance of measuring long needle valve subassembly, long needle valve subassembly includes valve pocket, long needle valve and needle valve body, the head of long needle valve with the valve pocket grafting, the afterbody of long needle valve with the needle valve body grafting, terminal surface distance measuring device includes:
The measuring table comprises a working panel, a first stop block, a second stop block and a bearing piece, wherein a chute is formed in the working panel, the first stop block and the second stop block are respectively arranged at two ends of the chute, one end of the bearing piece is arranged in the chute, the other end of the bearing piece is abutted to the long needle valve and used for bearing the long needle valve, and the position of the bearing piece relative to the chute is adjustable;
The clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece is arranged on the first stop block, the second clamping piece is arranged on the second stop block, the first clamping piece is in butt joint with the needle valve body, the second clamping piece is in butt joint with the valve sleeve, the position of the first clamping piece relative to the first stop block is adjustable, and the position of the second clamping piece relative to the second stop block is adjustable;
the measuring table is arranged on the measuring table and is used for measuring the end face distance of the long needle valve assembly, the measuring table comprises a measuring needle, and the measuring needle is abutted to the shoulder blade surface of the valve sleeve.
Optionally, a kidney-shaped hole is formed in the bottom of the chute, the first bolt penetrates through the kidney-shaped hole to be in threaded connection with the supporting piece, and the length direction of the kidney-shaped hole is the same as the length direction of the chute.
Optionally, the support piece is equipped with a plurality ofly, and a plurality of the support piece sets up along the length direction of spout.
Optionally, a V-shaped groove is provided on the other end of the support, and at least part of the V-shaped groove accommodates the long needle valve.
Optionally, the first clamping member includes:
The first adjusting rod is arranged in a sliding penetrating mode on the first stop block, a first boss is arranged at one end of the first adjusting rod, the diameter of the first boss is larger than that of the first adjusting rod, and the first end face of the first boss is in butt joint with the needle valve body;
The first elastic piece is sleeved outside the first adjusting rod, one end of the first elastic piece is abutted with the second end face of the first boss, and the other end of the first elastic piece is abutted with the first stop block;
and the first nut is in threaded connection with the other end of the first adjusting rod, and when the first elastic piece is in a natural state, the first nut is abutted with the first stop block.
Optionally, a tapered hole is formed in the first end face, and the end portion of the needle valve body abuts against the tapered hole.
Optionally, the second clamping member includes:
the second adjusting rod is arranged in a sliding penetrating mode on the second stop block, a second boss is arranged at one end of the second adjusting rod, the diameter of the second boss is larger than that of the second adjusting rod, and the first end face of the second boss is in butt joint with the valve sleeve;
The second elastic piece is sleeved outside the second adjusting rod, one end of the second elastic piece is abutted with the second end face of the second boss, and the other end of the second elastic piece is abutted with the second stop block;
And the second nut is in threaded connection with the other end of the second adjusting rod, and when the second elastic piece is in a natural state, the second nut is abutted with the second stop block.
Optionally, the position of the first stop block relative to the chute is adjustable, and/or the position of the second stop block relative to the chute is adjustable.
Optionally, the measurement table further includes:
A gauge head;
one end of the gauge rod is fixedly connected with the gauge head;
The gauge stand is arranged on the working panel and is provided with a through hole, and the gauge rod is arranged through the through hole;
One end of the measuring rod is connected with the gauge rod in a sliding way, and the sliding direction of the measuring rod is parallel to the sliding groove;
The measuring rod clamping piece is sleeved outside the measuring rod, the position of the measuring rod is adjustable, one end of the measuring needle is fixedly connected with the measuring rod clamping piece, and the other end of the measuring needle is abutted to the shoulder blade surface of the valve sleeve.
According to another aspect of the present invention, there is provided an end face distance measuring method, which is implemented based on the end face distance measuring device according to any one of the above-mentioned aspects, comprising the steps of:
The position of the bearing piece is adjusted, the standard long needle valve assembly is placed on the bearing piece, the positions of the first clamping piece and the second clamping piece are adjusted, and clamping of the standard long needle valve assembly is completed;
abutting a measuring needle of a measuring meter with a valve sleeve of the long needle valve assembly standard component, and then placing the measuring meter in a zero position;
Taking away the long needle valve assembly standard component, placing the long needle valve assembly to be measured on the bearing component, and adjusting the positions of the first clamping component and the second clamping component to finish the clamping of the long needle valve assembly;
And reading a value H of a measuring meter, defining the end face distance of the long needle valve assembly standard component as L, and measuring the end face distance of the long needle valve assembly as L+H.
The beneficial effects of the invention are as follows:
The invention provides an end face distance measuring device which comprises a measuring table, a clamping assembly and a measuring meter. The position of the first clamping piece relative to the first stop block is adjustable, and the position of the second clamping piece relative to the second stop block is adjustable, so that the end face distance measuring device is applicable to long needle valve assemblies with different specifications, and has high universality; on the other hand, when the end face distance of the long needle valve assembly is measured, the long needle valve assembly standard piece is required to be clamped firstly, the end face distance L of the standard piece is required to be clamped, the measuring gauge is placed in a zero position after the long needle valve assembly standard piece is clamped, then the long needle valve assembly to be measured is clamped again, the value H of the measuring gauge is read, L+H is the end face distance of the long needle valve assembly, the direct measurement of the end face distance of the long needle valve assembly is realized, and the measuring efficiency is high; in still another aspect, the long needle valve assembly can be fixed through the first clamping piece and the second clamping piece, the needle valve body is not required to be supported by hands in the measuring process, the considered error is avoided, and the measuring precision is high.
Drawings
Fig. 1 is a schematic structural diagram of an end face distance measuring device according to an embodiment of the present invention;
FIG. 2 is a top view of an end face distance measuring device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction of FIG. 2 A-A;
FIG. 4 is a left side view of an end face distance measuring device according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the direction of FIG. 4B-B;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
fig. 7 is a flowchart of an end face distance measurement method according to an embodiment of the present invention.
In the figure:
100. A long needle valve assembly; 110. a valve sleeve; 120. a long needle valve; 130. a needle valve body; 200. a measuring station; 210. a work panel; 211. a chute; 2111. waist-shaped holes; 220. a first stopper; 230. a second stopper; 240. a support; 241. a V-shaped groove; 250. a first bolt; 260. a second bolt; 270. a third bolt; 310. a first clamping member; 311. a first adjusting lever; 312. a first boss; 3121. a tapered bore; 313. a first elastic member; 314. a first nut; 320. a second clamping member; 321. a second adjusting lever; 322. a second boss; 323. a second elastic member; 324. a second nut; 400. a measuring meter; 410. a measuring needle; 420. a gauge head; 430. a watch bar; 440. a gauge stand; 441. a first adjusting screw; 450. a measuring rod; 460. a measuring rod clamping member; 461. a second adjusting screw; 470. and a third elastic member.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The invention provides an end face distance measuring device which adopts a direct measurement mode, has higher measurement precision and measurement efficiency, simple structure and stronger universality.
Specifically, as shown in fig. 1-6, the end face distance measuring device is used for measuring the end face distance of the long needle valve assembly 100, the long needle valve assembly 100 includes a valve housing 110, a long needle valve 120 and a needle valve body 130, the head of the long needle valve 120 is inserted into the valve housing 110, the tail of the long needle valve 120 is inserted into the needle valve body 130, the distance between the shoulder surface of the valve housing 110 and the large end face of the needle valve body 130 is the end face distance of the long needle valve assembly 100, and in this embodiment, the end face distance of the long needle valve assembly standard is L. The end face distance measuring device includes a measuring table 200, a clamping assembly, and a measuring meter 400. The measuring table 200 includes a working panel 210, a first stop block 220, a second stop block 230, and a supporting member 240, the working panel 210 is provided with a sliding slot 211, the first stop block 220 and the second stop block 230 are respectively disposed at two ends of the sliding slot 211, one end of the supporting member 240 is disposed in the sliding slot 211, the other end is abutted to the long needle valve 120, and is used for supporting the long needle valve 120, and the position of the supporting member 240 relative to the sliding slot 211 is adjustable. By setting the position of the support 240 relative to the sliding groove 211 to be adjustable, the position of the support 240 can be adjusted according to the length of the long needle valve 120, so that the working reliability of the support 240 is improved. The clamping assembly comprises a first clamping member 310 and a second clamping member 320, wherein the first clamping member 310 is arranged on the first stop block 220, the second clamping member 320 is arranged on the second stop block 230, the first clamping member 310 is abutted with the needle valve body 130, the second clamping member 320 is abutted with the valve sleeve 110, the position of the first clamping member 310 relative to the first stop block 220 is adjustable, and the position of the second clamping member 320 relative to the second stop block 230 is adjustable. By setting the position of the first clamping piece 310 relative to the first stop block 220 to be adjustable, the position of the second clamping piece 320 relative to the second stop block 230 to be adjustable, and further, the distance between the first clamping piece 310 and the second clamping piece 320 is adjustable, so that the first clamping piece 310 and the second clamping piece 320 can clamp and fix the long needle valve assemblies 100 with different lengths, and the universality of the end face distance measuring device is improved. The measuring gauge 400 is disposed on the measuring table 200 for measuring the end surface distance of the long needle valve assembly 100, and the measuring gauge 400 includes a measuring needle 410, and the measuring needle 410 abuts against the shoulder blade surface of the valve sleeve 110. When measuring the end face of the long needle valve assembly 100, the first clamping piece 310 and the second clamping piece 320 are used for fixing the long needle valve assembly standard piece, then the measuring needle 410 is adjusted to be abutted against the shoulder blade surface of the valve sleeve 110 of the long needle valve assembly standard piece, the measuring meter 400 is adjusted to be in zero position, the long needle valve assembly standard piece is taken as a reference, then the long needle valve assembly standard piece is taken down, the long needle valve assembly 100 needing to be measured is clamped, and the numerical value H and L+H of the measuring meter 400 are read to obtain the end face distance of the long needle valve assembly 100.
Further, with continued reference to fig. 3, a kidney-shaped hole 2111 is provided at the bottom of the sliding slot 211, and the first bolt 250 is screwed with the supporter 240 through the kidney-shaped hole 2111, and the length direction of the kidney-shaped hole 2111 is the same as the length direction of the sliding slot 211. Through setting up waist shape hole 2111, when the position that needs to change bearing piece 240, only need unscrew first bolt 250, then after the slip bearing piece 240 reaches required position, screw up again first bolt 250 fixed bearing piece 240 can, simple structure, convenient operation.
Preferably, with continued reference to fig. 1-3, depending on the length of the long needle valve 120, a plurality of bearings 240 may be provided, the plurality of bearings 240 being disposed along the length of the chute 211. In this embodiment, two supporting members 240 are provided, wherein one side surface of the two supporting members 240 is abutted against the large end surface of the needle valve body 130, so as to facilitate the connection between the long needle valve 120 and the needle valve body 130 to be stabilized, and the other supporting member 240 is disposed at the rear end of the long needle valve 120, which is beneficial to improving the stress uniformity of the long needle valve 120. Of course, in other embodiments, the number and arrangement of the supporting members 240 may be other, and may be set according to actual needs.
Preferably, with continued reference to fig. 1, the other end of the support member 240 is provided with a V-shaped groove 241, and the other end of the support member 240 is the end of the support member 240 abutting against the long needle valve 120, and at least part of the V-shaped groove 241 accommodates the long needle valve 120. By arranging the V-shaped groove 241, on one hand, the contact area between the bearing member 240 and the long needle valve 120 is increased, and the reliability of the bearing member 240 for bearing the long needle valve 120 is improved; on the other hand, the V-shaped groove 241 can limit the movement of the long needle valve 120 in the direction perpendicular to the axis of the long needle valve assembly 100, thereby improving the reliability of the position of the long needle valve assembly 100 and further ensuring the accuracy of the measurement result.
Further, in an embodiment, the position of the first stopper 220 relative to the sliding slot 211 is adjustable, when the end surface distance of the long needle valve assembly 100 is too large or too small, and the long needle valve assembly 100 cannot be fixed only by adjusting the distance between the first clamping member 310 and the second clamping member 320, the distance between the first clamping member 310 and the second clamping member 320 can be further adjusted by adjusting the position of the first stopper 220, so that the versatility of the end surface distance measuring device is improved. In another embodiment, the position of the second stop 230 relative to the chute 211 may be adjustable. In other embodiments, the positions of the first stop 220 and the second stop 230 are adjustable relative to the chute 211. And setting according to actual needs.
In this embodiment, with continued reference to fig. 3, the positions of the first stopper 220 and the second stopper 230 are adjustable, the second bolt 260 is threaded with the first stopper 220 through the kidney-shaped hole 2111, and the third bolt 270 is threaded with the second stopper 230 through the kidney-shaped hole 2111, so that the operation is simple and convenient.
Further, with continued reference to fig. 3, the first clamping member 310 includes a first adjustment lever 311, a first elastic member 313, and a first nut 314. The first adjusting rod 311 is slidably disposed through the first stop block 220, one end of the first adjusting rod 311 is provided with a first boss 312, the diameter of the first boss 312 is greater than that of the first adjusting rod 311, and a first end surface of the first boss 312 abuts against the needle valve body 130. The first elastic member 313 is sleeved outside the first adjusting lever 311, one end of the first elastic member 313 abuts against the second end surface of the first boss 312, and the other end abuts against the first stop block 220. The first nut 314 is screwed to the other end of the first adjustment lever 311, and when the first elastic member 313 is in a natural state, the first nut 314 abuts against the first stopper 220. By screwing the first nut 314, the length of the first adjusting lever 311 protruding from the first stopper 220 can be adjusted, thereby adjusting the distance between the first clamping member 310 and the second clamping member 320. Alternatively, the first elastic member 313 may be, but is not limited to, a spring.
Preferably, the first end surface of the first boss 312 is provided with a tapered hole 3121, and the end of the needle valve body 130 abuts against the tapered hole 3121. By providing the tapered hole 3121, on the one hand, the installation of the needle valve body 130 can be positioned, facilitating the fixation of the needle valve body 130; on the other hand, the installation of the needle valve body 130 can be guided, and the installation efficiency of the long needle valve assembly 100 can be improved.
Further, with continued reference to fig. 3, the second clamping member 320 includes a second adjustment rod 321, a second elastic member 323, and a second nut 324. The second adjusting rod 321 is slidably disposed through the second stop block 230, one end of the second adjusting rod 321 is provided with a second boss 322, the diameter of the second boss 322 is greater than that of the second adjusting rod 321, and the first end surface of the second boss 322 abuts against the valve sleeve 110. The second elastic member 323 is sleeved outside the second adjusting rod 321, one end of the second elastic member 323 is abutted against the second end surface of the second boss 322, and the other end is abutted against the second stop block 230. The second nut 324 is screwed to the other end of the second adjustment rod 321, and when the second elastic member 323 is in a natural state, the second nut 324 abuts against the second stopper 230. By screwing the second nut 324, the length of the second adjusting rod 321 protruding from the second stopper 230 can be adjusted, thereby adjusting the distance between the first clamping member 310 and the second clamping member 320. Optionally, the second elastic member 323 is optionally but not limited to a spring.
Further, with continued reference to fig. 5 and 6, the gauge 400 also includes a gauge outfit 420, a gauge stick 430, a gauge stand 440, a gauge stick 450, and a gauge stick 450 clamping block. One end of the gauge rod 430 is fixedly connected with the gauge outfit 420. Gauge stand 440 is disposed on working panel 210, gauge stand 440 has a through hole, and gauge rod 430 is disposed through the through hole. One end of the measuring rod 450 is slidably connected to the gauge rod 430, and the sliding direction of the measuring rod 450 is parallel to the sliding groove 211, so that the end face distance of the long needle valve assembly 100 can be measured conveniently. The measuring rod clamping piece 460 is sleeved outside the measuring rod 450, the position of the measuring rod 450 is adjustable, one end of the measuring needle 410 is fixedly connected with the clamping block of the measuring rod 450, and the other end is abutted with the shoulder blade surface of the valve sleeve 110. By providing the position of the spindle clamp 460 relative to the spindle 450 to be adjustable, when measuring the length of the long needle valve assembly standard, the gauge 400 can be zeroed by adjusting the position of the spindle clamp 460 while ensuring that the stylus 410 abuts the shoulder blade surface of the valve housing 110 of the long needle valve assembly standard. In order to avoid lateral deflection of the stylus 450, the stylus holder 460 is made of a lightweight material. The stylus 410 should be made of a material with higher hardness to increase the wear resistance of the stylus 410 head. The gauge 400 is optionally, but not limited to, a dial gauge.
Further, a third elastic member 470 is provided between the end of the measuring staff 450 and the staff 430, and the third elastic member 470 can automatically reset the measuring staff 450.
Further, a first adjusting screw 441 is provided on a side wall of the gauge stand 440, and the gauge rod 430 can be fixed in the through hole by screwing the first adjusting screw 441. Simple structure, easy to assemble.
Preferably, the second adjusting screw 461 is arranged on the measuring rod clamping piece 460, and the second adjusting screw 461 is screwed, so that the adjusting piece of the measuring rod 450 can be fixed on the measuring rod 450, the structure is simple, and the position of the measuring rod clamping piece 460 can be conveniently adjusted.
The invention also provides an end face distance measuring method which is realized based on the end face distance measuring device, as shown in fig. 7, and comprises the following steps:
S100, adjusting the position of the supporting member 240, placing the standard long needle valve assembly on the supporting member 240, and adjusting the positions of the first clamping member 310 and the second clamping member 320 to finish clamping of the standard long needle valve assembly;
specifically, the adjusting the position of the first clamping member 310 and the position of the second clamping member 320 is specifically:
the first nut 314 and the second nut 324 are screwed so that the first adjusting rod 311 and the second adjusting member clamp and fix the long needle valve assembly standard.
S200, abutting the measuring needle 410 of the measuring meter 400 with the valve sleeve 110 of the long needle valve assembly standard component, and then placing the measuring meter 400 in a zero position;
Specifically, the end face distance of the standard component of the long needle valve assembly can be measured for multiple times, so that the measuring needle 410 is contacted with different positions of the shoulder blade surface of the valve sleeve 110, the reading number of the measuring meter 400 is within +/-0.003, the measuring requirement is met, and the calibration is completed.
S300, taking away a standard component of the long needle valve assembly, placing the long needle valve assembly 100 to be measured on the bearing component 240, and adjusting the positions of the first clamping component 310 and the second clamping component 320 to finish clamping of the long needle valve assembly 100;
specifically, the adjusting the position of the first clamping member 310 and the position of the second clamping member 320 is specifically:
the first nut 314 and the second nut 324 are screwed such that the first adjustment rod 311 and the second adjustment member clamp the long needle valve assembly 100.
S400, reading a value H of the measuring meter 400, defining the end face distance of the standard component of the long needle valve assembly as L, and measuring the end face distance of the long needle valve assembly 100 as L+H.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (9)
1. The end face distance measuring device is used for measuring the end face distance of a long needle valve assembly (100), the long needle valve assembly (100) comprises a valve sleeve (110), a long needle valve (120) and a needle valve body (130), the head of the long needle valve (120) is inserted into the valve sleeve (110), and the tail of the long needle valve (120) is inserted into the needle valve body (130), and is characterized in that:
The measuring table (200) comprises a working panel (210), a first stop block (220), a second stop block (230) and a bearing piece (240), wherein a sliding groove (211) is formed in the working panel (210), the first stop block (220) and the second stop block (230) are respectively arranged at two ends of the sliding groove (211), one end of the bearing piece (240) is arranged in the sliding groove (211), the other end of the bearing piece is abutted to the long needle valve (120) and used for bearing the long needle valve (120), and the position of the bearing piece (240) relative to the sliding groove (211) is adjustable;
The clamping assembly comprises a first clamping piece (310) and a second clamping piece (320), wherein the first clamping piece (310) is arranged on the first stop block (220), the second clamping piece (320) is arranged on the second stop block (230), the first clamping piece (310) is abutted with the needle valve body (130), the second clamping piece (320) is abutted with the valve sleeve (110), the position of the first clamping piece (310) relative to the first stop block (220) is adjustable, and the position of the second clamping piece (320) relative to the second stop block (230) is adjustable;
a measuring gauge (400) disposed on the measuring table (200) for measuring an end surface distance of the long needle valve assembly (100), the measuring gauge (400) including a measuring needle (410), the measuring needle (410) abutting against a shoulder blade surface of the valve housing (110);
the meter (400) further comprises:
A header (420);
a gauge rod (430), one end of which is fixedly connected with the gauge head (420);
the gauge stand (440) is arranged on the working panel (210), a through hole is formed in the gauge stand (440), and the gauge rod (430) penetrates through the through hole;
a measuring rod (450), one end of which is in sliding connection with the watch rod (430), wherein the sliding direction of the measuring rod (450) is parallel to the sliding groove (211);
The measuring rod clamping piece (460) is sleeved outside the measuring rod (450), the position of the measuring rod (450) is adjustable, one end of the measuring needle (410) is fixedly connected with the measuring rod clamping piece (460), and the other end of the measuring needle is abutted to the shoulder blade surface of the valve sleeve (110).
2. The end face distance measuring device according to claim 1, wherein a kidney-shaped hole (2111) is provided at the bottom of the chute (211), a first bolt (250) is threaded through the kidney-shaped hole (2111) to the support (240), and the length direction of the kidney-shaped hole (2111) is the same as the length direction of the chute (211).
3. The end face distance measuring device according to claim 2, wherein a plurality of the holders (240) are provided, and a plurality of the holders (240) are provided along the length direction of the chute (211).
4. End face distance measuring device according to claim 2, characterized in that the other end of the support (240) is provided with a V-shaped groove (241), at least part of the V-shaped groove (241) accommodating the long needle valve (120).
5. The end face distance measurement device according to claim 1, wherein the first clamping member (310) comprises:
The first adjusting rod (311) is arranged in a sliding penetrating mode on the first stop block (220), a first boss (312) is arranged at one end of the first adjusting rod (311), the diameter of the first boss (312) is larger than that of the first adjusting rod (311), and the first end face of the first boss (312) is in abutting connection with the needle valve body (130);
The first elastic piece (313) is sleeved outside the first adjusting rod (311), one end of the first elastic piece (313) is abutted with the second end face of the first boss (312), and the other end of the first elastic piece is abutted with the first stop block (220);
and a first nut (314) which is in threaded connection with the other end of the first adjusting rod (311), wherein when the first elastic member (313) is in a natural state, the first nut (314) is abutted with the first stop block (220).
6. The end face distance measuring device according to claim 5, characterized in that a tapered hole (3121) is provided on the first end face, and an end of the needle valve body (130) abuts against the tapered hole (3121).
7. The end face distance measuring device according to claim 1, wherein the second clamping member (320) comprises:
The second adjusting rod (321) is arranged in a sliding penetrating mode on the second stop block (230), a second boss (322) is arranged at one end of the second adjusting rod (321), the diameter of the second boss (322) is larger than that of the second adjusting rod (321), and the first end face of the second boss (322) is in abutting connection with the valve sleeve (110);
the second elastic piece (323) is sleeved outside the second adjusting rod (321), one end of the second elastic piece (323) is abutted with the second end face of the second boss (322), and the other end of the second elastic piece is abutted with the second stop block (230);
and a second nut (324) which is in threaded connection with the other end of the second adjusting rod (321), wherein when the second elastic member (323) is in a natural state, the second nut (324) is abutted against the second stop block (230).
8. The end face distance measuring device according to any of claims 1-7, characterized in that the position of the first stop (220) relative to the chute (211) is adjustable and/or the position of the second stop (230) relative to the chute (211) is adjustable.
9. An end face distance measuring method, characterized in that the end face distance measuring method is realized based on the end face distance measuring device according to any one of claims 1-8, comprising the steps of:
The position of the bearing piece (240) is adjusted, the standard long needle valve assembly is placed on the bearing piece (240), the positions of the first clamping piece (310) and the second clamping piece (320) are adjusted, and clamping of the standard long needle valve assembly is completed;
Abutting a needle (410) of a gauge (400) against a valve sleeve (110) of the long needle valve assembly standard, and then placing the gauge (400) in a zero position;
Taking away the long needle valve assembly standard component, placing the long needle valve assembly (100) to be measured on the bearing component (240), and adjusting the positions of the first clamping component (310) and the second clamping component (320) to finish clamping of the long needle valve assembly (100);
Reading a value H of a measuring table (400), defining the end face distance of the long needle valve assembly standard component as L, and measuring the end face distance of the long needle valve assembly (100) as L+H.
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| CN202211116234.3A CN115420169B (en) | 2022-09-14 | 2022-09-14 | End face distance measuring device and method |
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| CN202211116234.3A CN115420169B (en) | 2022-09-14 | 2022-09-14 | End face distance measuring device and method |
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| CN115420169B true CN115420169B (en) | 2024-05-14 |
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| GB756064A (en) * | 1953-11-04 | 1956-08-29 | Alexander Adolphus Carlo Degen | Improvements in linear dimension gauges or the like |
| CN211527291U (en) * | 2019-09-26 | 2020-09-18 | 杭州竞舟轴承有限公司 | Flange angle measuring device |
| CN211668462U (en) * | 2020-04-22 | 2020-10-13 | 无锡麦格威精密机械有限公司 | Hand-held external conical surface fixed diameter distance measuring device |
| CN212620564U (en) * | 2020-07-14 | 2021-02-26 | 青岛信康发动机配件有限公司 | Comprehensive measuring tool for measuring size of deformable part |
| CN215432967U (en) * | 2021-08-26 | 2022-01-07 | 一汽解放汽车有限公司 | Processing device for circumferentially uniformly distributing flat positions |
| CN216283392U (en) * | 2021-10-25 | 2022-04-12 | 一汽解放汽车有限公司 | End face distance measuring device |
-
2022
- 2022-09-14 CN CN202211116234.3A patent/CN115420169B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB756064A (en) * | 1953-11-04 | 1956-08-29 | Alexander Adolphus Carlo Degen | Improvements in linear dimension gauges or the like |
| CN211527291U (en) * | 2019-09-26 | 2020-09-18 | 杭州竞舟轴承有限公司 | Flange angle measuring device |
| CN211668462U (en) * | 2020-04-22 | 2020-10-13 | 无锡麦格威精密机械有限公司 | Hand-held external conical surface fixed diameter distance measuring device |
| CN212620564U (en) * | 2020-07-14 | 2021-02-26 | 青岛信康发动机配件有限公司 | Comprehensive measuring tool for measuring size of deformable part |
| CN215432967U (en) * | 2021-08-26 | 2022-01-07 | 一汽解放汽车有限公司 | Processing device for circumferentially uniformly distributing flat positions |
| CN216283392U (en) * | 2021-10-25 | 2022-04-12 | 一汽解放汽车有限公司 | End face distance measuring device |
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