CN113701598B - Even number ditch screw pitch diameter comparison measuring tool - Google Patents
Even number ditch screw pitch diameter comparison measuring tool Download PDFInfo
- Publication number
- CN113701598B CN113701598B CN202110991268.6A CN202110991268A CN113701598B CN 113701598 B CN113701598 B CN 113701598B CN 202110991268 A CN202110991268 A CN 202110991268A CN 113701598 B CN113701598 B CN 113701598B
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- instrument frame
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- 230000008093 supporting effect Effects 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 6
- 241001417523 Plesiopidae Species 0.000 claims description 2
- 238000000034 method Methods 0.000 description 14
- 238000001514 detection method Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- 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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
Abstract
The invention provides an even-numbered groove thread pitch diameter comparison measuring tool which comprises an instrument frame and a dial indicator, wherein the dial indicator is provided with a follow-up device and a pressing column, the instrument frame is provided with a measuring gap with an opening facing to the left side, the dial indicator is provided with a first measuring head, the instrument frame is also provided with a second measuring head which is arranged opposite to the first measuring head, the upper side of the measuring gap is provided with a first measuring head mounting hole, the lower side of the measuring gap is provided with a second measuring head mounting hole, the instrument frame on the right side of the measuring gap is provided with a telescopic supporting rod, and the supporting rod extends to the right side of a gap between the first measuring head and the second measuring head; the first gauge head overcoat is equipped with first gauge head installation cover, and first gauge head installation cover sliding connection is in first gauge head mounting hole, and first gauge head installation cover upper end offsets with the percentage table measuring end, and the percentage table is located instrument rack top, and its measuring end stretches into in the first gauge head mounting hole, and follower includes the lever, and the center of lever is fixed in the lever mounting groove through the central pin axle. The pitch diameter of the even groove threads can be measured.
Description
Technical Field
The invention relates to the technical field of thread measurement, in particular to a tool for comparing and measuring pitch diameters of even-numbered grooves.
Background
In the technical field of tap processing, after mechanical structural parts are manufactured and molded, the shape, position and size elements of corresponding parts are required to be detected. There are many thread measuring devices on the market, but for odd grooves, fewer even grooves are available. For the measurement of the pitch diameter of even-numbered grooves, a three-needle measurement method is often used, and the three-needle measurement method is an indirect simple measurement method for the pitch diameter. When in measurement, three measuring pins with the same diameter are placed in grooves of the measured thread, wherein two measuring pins are placed in grooves adjacent to the same side, and the other measuring pin is placed in a middle groove opposite to the groove corresponding to the groove. After the measurement is completed, the measurement result needs to be calculated, data cannot be intuitively obtained, and errors are easily generated in the calculation process. In addition, parameters in different thread form angles are required to be changed, parameters can be accurately obtained only by looking up a table when the unusual thread form angles are encountered, time and labor are wasted, and efficiency is low. In addition, since the external threads of the tap are spirally arranged, it is very difficult to measure the threads of the tap, and not only the skill of a measurer but also the computing power of the measurer need to be considered.
Disclosure of Invention
The invention aims at least solving the technical problems in the prior art, and particularly creatively provides a measuring tool for comparing pitch diameters of even-numbered groove threads, which can measure the pitch diameters of the even-numbered groove threads.
In order to achieve the above object of the present invention, the present invention provides an even-numbered groove thread pitch diameter comparison measuring tool, which comprises a meter frame and a dial indicator installed on the meter frame, wherein the dial indicator is provided with a follow-up device and a pressing column, a measuring gap with an opening facing to the left side is arranged at the lower part of the left side of the meter frame, a first measuring head is arranged on the dial indicator, the meter frame is also provided with a second measuring head which is arranged opposite to the first measuring head, a first measuring head installation hole which is vertically extended and communicated with the measuring gap is arranged on the meter frame at the upper side of the measuring gap, a second measuring head installation hole which is vertically extended and communicated with the measuring gap is arranged on the meter frame at the lower side of the measuring gap, the first measuring head and the second measuring head are respectively installed in the first measuring head installation hole and the second measuring head installation hole, a workpiece is arranged between the first measuring head and the second measuring head at an opposite interval from top to bottom, a telescopic rod is arranged on the meter frame at the right side of the measuring gap, and the telescopic rod is used for abutting against the tap between the telescopic rod and the second measuring head;
the first measuring head is sleeved with a first measuring head mounting sleeve, the first measuring head mounting sleeve is slidably connected in a first measuring head mounting hole, the upper end of the first measuring head mounting sleeve is propped against the measuring end of the dial indicator, the dial indicator is positioned above the instrument frame, the measuring end of the dial indicator extends into the first measuring head mounting hole, an elastic reset device is arranged between the dial indicator and the first measuring head mounting sleeve, and the lower end of the first measuring head mounting sleeve is used for mounting the first measuring head;
the follow-up device comprises a lever, the center of the lever is fixed in a corresponding lever mounting groove on a meter frame positioned on the right side of a first measuring head mounting hole through a center pin shaft, the lever can rotate around the center pin shaft, a pressing column mounting hole is formed in the meter frame corresponding to a pressing column, the lever mounting groove is respectively communicated with the first measuring head mounting hole and the pressing column mounting hole, the pressing column is slidably mounted in the pressing column mounting hole, the top end of the pressing column extends to the upper side of the meter frame, and two ends of the lever are respectively connected with the lower end of the pressing column and the upper portion of a first measuring head mounting sleeve in the pressing column mounting hole, and the pressing column is used for driving the first measuring head mounting sleeve to slide up and down to finish measurement.
In the scheme, the method comprises the following steps: the instrument rack is provided with locking holes corresponding to the first measuring head mounting holes and the second measuring head mounting holes, threads are arranged in the locking holes, the locking holes are located on the side faces of the first measuring head mounting holes or the second measuring head mounting holes, the axes of the locking holes are mutually perpendicular to the axes of the first measuring head mounting holes, the locking holes are communicated with the corresponding first measuring head mounting holes or the corresponding second measuring head mounting holes, locking bolts are connected with the locking holes in a threaded mode, and the side walls of the dial indicator measuring rod or the second measuring head are abutted to the locking bolts. And a dial indicator and a second measuring head are installed through locking bolts.
In the scheme, the method comprises the following steps: the instrument rack is characterized in that the instrument rack on the right side of the measuring notch is provided with a containing groove which extends left and right and is used for containing the supporting rod, the supporting rod is positioned in the containing groove, the upper width and the lower width of the containing groove are consistent with the upper width and the lower width of the measuring notch and are communicated with the measuring notch, an adjusting groove which extends up and down is arranged on the back of the instrument rack and corresponds to the containing groove, the adjusting groove is communicated with the containing groove, a sliding block is connected in the adjusting groove in a sliding mode, the supporting rod penetrates through a corresponding supporting rod hole on the sliding block, a strip-shaped through hole is vertically arranged on the front face of the instrument rack and corresponds to the containing groove, a locking screw penetrates through the strip-shaped through hole and then stretches into a locking screw hole of the sliding block, and the sliding block is locked at a corresponding position on the strip-shaped through hole through the locking screw, so that the position of the supporting rod is adjusted. The supporting rod can be adjusted up and down, the supporting effect is improved, and the screw tap deviation is avoided.
In the scheme, the method comprises the following steps: one end of the supporting rod extending into the measuring notch is bent backwards. The side wall of the supporting rod is supported, so that the contact area is increased, and the stability is improved.
In the scheme, the method comprises the following steps: the instrument rack is provided with a yielding gap near the top of one side of the pressing column, and the top end of the pressing column extends out from the bottom side of the yielding gap. The position of the finger is lowered when the finger is pressed, so that the pressing column is pressed conveniently.
In the scheme, the method comprises the following steps: the bayonet on the pressing post is a through hole, so that a rod body part of the lever can penetrate through the bayonet to extend to the other side of the pressing post, and the lever is conveniently mounted on the pressing post and the first measuring head mounting sleeve.
In the scheme, the method comprises the following steps: the length of the two arms of the lever is equal, the two ends of the lever are all round, and the diameter of the round ends at the two ends of the lever is larger than that of the rod bodies at the two sides. The prying device is round, so that prying is more convenient, and errors are reduced. The arm of force is equal, then is equal according to the removal distance of post and first gauge head, further reduces the error.
In the scheme, the method comprises the following steps: the right front side of the lever installation groove is provided with a cover plate for covering the lever installation groove, and the instrument frame is provided with a cover plate groove for accommodating the cover plate, so that the cover plate is immersed into the instrument frame.
In the scheme, the method comprises the following steps: and heat insulation gaskets are arranged on the front side and the rear side of the instrument frame.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows: the first measuring head and the second measuring head which are oppositely arranged can directly obtain a measuring result, and compared with a three-needle measuring method in the prior art, the measuring method is convenient and quick, uniform in stress, simple to operate, convenient to detect and capable of improving the detection efficiency; in addition, the technical scheme is that after the first measuring head, the second measuring head and the supporting rod are adjusted in advance according to the sample, the measured value of the workpiece to be detected is compared with the measured value of the sample to obtain a difference value, if the difference value is within the allowable error range, the workpiece to be detected is a qualified workpiece, the measured data is not required to be brought into a formula to calculate the size of the intermediate diameter as in a three-needle measuring method, whether the size of the intermediate diameter is qualified is compared, the efficiency is further improved, and errors generated in the calculating process are not easy to generate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a dial indicator, a first gauge head, a lever, a press post, a second gauge head, and a press bar of the present invention;
FIG. 3 is a schematic view of the instrument rack of the present invention;
FIG. 4 is a cross-sectional view of the instrument rack;
FIG. 5 is a schematic view of an instrument cluster, cover plate, and insulation blanket;
FIG. 6 is an enlarged schematic view at A in FIG. 1;
FIG. 7 is a schematic view of the installation of the abutment;
fig. 8 is a schematic view of fig. 7 with the abutment bar and slider removed.
Detailed Description
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.
As shown in fig. 1 to 8, an even-numbered groove thread pitch diameter comparison measuring tool comprises a meter frame 1 and a dial indicator 2 arranged on the meter frame 1, wherein the dial indicator 2 is preferably detachably arranged on the meter frame 1 and can be replaced according to the requirements of different precision. Specifically, be equipped with first gauge head mounting hole 1c on the instrument rack 1, the measuring stick of percentage table 2 stretches into in the first gauge head mounting hole 1c, and one side of first gauge head mounting hole 1c is equipped with locking hole b, locking hole b's axis and first gauge head mounting hole 1 c's axis mutually perpendicular, and locking hole b communicates with each other with first gauge head mounting hole 1c, is equipped with the locking bolt in the locking hole b, supports the lateral wall of percentage table 2 measuring stick tightly through the lateral wall of locking bolt, realizes fixing.
Preferably, a measuring notch 1a is concavely arranged on one side of the instrument frame 1, the dial indicator 2 is positioned right above the measuring notch 1a, a first measuring head fixing sleeve 7 propped against the measuring end of the dial indicator 2 is arranged at the bottom end of the dial indicator 2, and the first measuring head fixing sleeve 7 slides in the first measuring head mounting hole 1 c. An elastic reset device 8 is arranged between the dial indicator 2 and the first measuring head mounting sleeve 7, the elastic reset device 8 is a spring, the diameter of the bottom end of the dial indicator 2 measuring rod is smaller than that of the upper part of the measuring rod, the elastic reset device 8 is sleeved on the smaller diameter part, and the bottom end of the elastic reset device 8 is propped against the top end of the first measuring head mounting sleeve 7, so that the elastic reset device 8 is mounted.
The first measuring head 7a is sleeved in the bottom end of the first measuring head mounting sleeve 7, the dial indicator 2 is further provided with a follow-up device, the follow-up device comprises a lever 4 and a pressing column 3, two ends of the lever 4 are respectively connected with the pressing column 3 and the first measuring head mounting sleeve 7, the middle part of the lever 4 is rotationally connected to the instrument frame 1, and the pressing column 3 is pressed to drive the first measuring head mounting sleeve 7 to slide up and down, so that measurement is completed. Specifically, the bayonet a for the end part of the lever 4 to extend into is formed in the pressing column 3 and the first measuring head mounting sleeve 7, and preferably, the two ends of the lever 4 are rounded, so that the prying is more convenient, and the error is reduced. And the diameter of the round heads at the two ends of the lever 4 is larger than that of the rod bodies at the two sides, and the bayonet a on the pressing column 3 is a through hole, so that the rod body part of the lever 4 can penetrate through the bayonet a to extend to the other side of the pressing column 3, and the lever 4 can be conveniently mounted on the pressing column 3 and the first measuring head mounting sleeve 7. Preferably, the arms of force on both sides of the lever 4 are equal, reducing errors. Preferably, the instrument frame 1 is provided with a column pressing mounting hole 1e, the column pressing 3 is slidably connected in the column pressing mounting hole 1e, and one end of the column pressing 3, which is not provided with the bayonet a, extends out of the instrument frame 1 for being pressed by a measuring staff. Preferably, the pressing column 3 is vertically arranged, the top end of the pressing column extends out of the instrument frame 1, a yielding gap 1b is formed on the right side near the top of the instrument frame 1, the top end of the pressing column 3 extends out of the bottom side of the yielding gap 1b, the position of a finger during pressing is lowered, and the pressing column 3 is conveniently pressed.
A second measuring head 6a is arranged right below the measuring gap 1a, and the second measuring head 6a is preferably connected to the instrument frame 1 in an adjustable manner. Specifically, the second gauge head 6a is sleeved with the second gauge head fixing sleeve 6, the instrument frame 1 is provided with a second gauge head mounting hole 1i for the second gauge head fixing sleeve 6 to axially slide along, one side of the second gauge head mounting hole 1i is provided with a locking hole b extending front and back, the locking hole b is communicated with the second gauge head mounting hole 1i, a locking bolt is also arranged in the locking hole b, and the side face of the gauge head fixing sleeve is abutted against the side face of the locking bolt to realize fixation.
The other side of the measuring notch 1a is provided with a transversely arranged supporting rod 5a for supporting the side face of the tap, and the supporting rod 5a is adjustably connected to the instrument frame 1. The back of the instrument frame 1 is vertically provided with an adjusting groove 1g, a sliding block 5b is connected in the adjusting groove 1g in a sliding mode, a strip-shaped through hole 1h is vertically formed in the bottom of the adjusting groove 1g, a locking screw 5 is connected to the front side of the sliding block 5b in a threaded mode, and the locking screw 5 is used for locking the strip-shaped through hole 1 h. The slide block 5b is provided with a through hole which extends left and right and is used for the supporting rod 5a to slide left and right, and meanwhile, the bottom end of the locking screw 5 extends into the through hole and is supported on the supporting rod 5a through the locking screw 5. Preferably, the instrument rack 1 is provided with a containing groove 1f which extends left and right and is communicated with the adjusting groove 1g, and the supporting rod 5a can move left and right in the containing groove 1f and is combined with the vertically arranged adjusting groove 1g and the strip-shaped through hole 1h, so that the supporting rod 5a can be adjusted up and down and left and right. The supporting rod 5a is bent backwards and extends against one end of the first measuring head 7a, and the supporting rod 5a supports against the side wall of the supporting rod, so that the contact area is increased, and the stability is improved.
Preferably, the instrument rack 1 is provided with a lever mounting groove 1d for accommodating the lever 4, and the lever 4 is freely rotatable in the lever mounting groove 1 d. Namely, the lever 4 is embedded in the instrument frame 1, so that the influence on the measurement result caused by touching of hands or external objects on the lever 4 in the measurement process is avoided, meanwhile, the space can be saved, and the overall aesthetic degree is improved. Preferably, the cover plate 9 is disposed on the right front side of the lever mounting groove 1d, so that the lever mounting groove 1d can be completely covered, and dust or scraps can be prevented from falling, so that the lever 4 is blocked and cannot rotate or a measurement error is generated. Preferably, the middle point of the lever 4 is provided with a fulcrum hole extending forwards and backwards, and the cover plate 9 is provided with a mounting hole coaxial with the fulcrum hole of the lever 4. The mounting bolts equipped with the mounting holes sequentially pass through the mounting holes of the cover plate 9 and the fulcrum holes of the lever 4, the bottom ends of the mounting bolts are connected with the bottom of the lever mounting groove 1d in a threaded manner, and the mounting bolts serve as the fulcrum of the lever 4. Preferably, the instrument rack 1 is provided with a cover plate sinking groove for accommodating the cover plate 9, so that the cover plate 9 sinks into the instrument rack 1.
Preferably, the front and back sides of the instrument frame 1 are also provided with heat insulation gaskets 10, and the heat insulation gaskets 10 can completely cover the handheld part, so that the instrument frame 1 body is prevented from being deformed by the temperature of a human body, errors are avoided, and the measurement accuracy is improved. The instrument frame 1 is provided with a plurality of gasket mounting holes, and the gasket is mounted on the instrument frame 1 through the gasket mounting holes. The heat insulation pad 10 is positioned on the other side of the measuring notch 1a, so that the measurement is not influenced.
Wherein, the bottom concave of first gauge head 7a is equipped with the constant head tank 7b that supplies the screw thread card to go into, and the both sides wall of constant head tank 7b leans on the notch slope, sets up to uncovered form, and the slope sets up the screw thread card of being convenient for and goes into the location, with the screw thread laminating, and the opening size of constant head tank 7b equals the integer multiple of the silk mouth width of the screw thread of card income. The top end of the second measuring head 6a is provided with a groove for the outer end edge of the threaded wire mouth to be clamped in.
Before measurement, a sample is placed between the first measuring head 7a and the second measuring head 6a, and the position of the sample is adjusted by matching with the abutting rod 5a, so that the positions of the first measuring head 7a, the second measuring head 6a and the abutting rod 5a are adjusted, and a workpiece to be detected subsequently is placed conveniently. And recording the reading of the sample detection, and completing the preparation work.
During measurement, the pressing column 3 is pressed down, the first measuring head 7a is lifted, a threaded wire port on the lower side of a workpiece to be detected is clamped in a groove on the top end of the second measuring head 6a, meanwhile, threads on the upper side of the workpiece to be detected are clamped in the positioning groove 7b, and the mounting is completed after the side wall of the threads is adjusted to be attached to the side wall of the positioning groove 7 b. The pressing column 3 is loosened, the first measuring head 7a is enabled to prop against the workpiece to be detected on the second measuring head 6a in a natural state, the reading of the dial indicator 2 is compared with the recorded reading of the sample detection, if the difference value is within the allowable error range, the workpiece to be detected is a qualified workpiece, and therefore comparison measurement between the workpiece to be detected and the sample is completed. Of course, the dial plate of the dial indicator 2 can be directly rotated to the point of the pointer pointing to 0 after the sample is detected, the zero point is directly used as a reference value, the error value can be directly detected, the measurement is the result, the calculation steps are reduced, the efficiency is further improved, and a worker can select between the two reading modes according to the actual conditions.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The utility model provides an even ditch screw pitch diameter comparison measuring tool, includes instrument frame (1) and installs percentage table (2) on instrument frame (1), percentage table (2) are equipped with servo unit and presses post (3), its characterized in that: the measuring instrument comprises an instrument frame (1), wherein a measuring notch (1 a) with an opening facing to the left is arranged on the lower part of the left side of the instrument frame (1), a first measuring head (7 a) is arranged on the dial indicator (2), a second measuring head (6 a) which is arranged opposite to the first measuring head (7 a) is also arranged on the instrument frame (1) on the upper side of the measuring notch (1 a), a first measuring head mounting hole (1 c) which is vertically extended and communicated with the measuring notch (1 a) is arranged on the instrument frame (1) on the lower side of the measuring notch (1 a), a second measuring head mounting hole (1 i) which is vertically extended and communicated with the measuring notch (1 a) is arranged on the instrument frame (1) on the lower side of the measuring notch (1 a), the first measuring head (7 a) and the second measuring head (6 a) are respectively arranged in the first measuring head mounting hole (1 c) and the second measuring head mounting hole (1 i), a workpiece is arranged at an upper and lower interval opposite to each other on the measuring head (7 a), and a telescopic rod (5 a) is arranged between the first measuring head (7 a) and the second measuring head (6 a) and a telescopic rod (5 a) which is arranged on the side of the measuring rod (5 a) and can be abutted against the telescopic rod (5 a);
the measuring instrument is characterized in that a first measuring head mounting sleeve (7) is sleeved outside the first measuring head (7 a), the first measuring head mounting sleeve (7) is slidably connected in a first measuring head mounting hole (1 c), the upper end of the first measuring head mounting sleeve (7) is propped against the measuring end of the dial indicator (2), the dial indicator (2) is positioned above the instrument frame (1), the measuring end of the dial indicator extends into the first measuring head mounting hole (1 c), an elastic reset device (8) is arranged between the dial indicator (2) and the first measuring head mounting sleeve (7), and the lower end of the first measuring head mounting sleeve (7) is used for mounting the first measuring head (7 a);
the follow-up device comprises a lever (4), wherein the center of the lever (4) is fixed in a corresponding lever mounting groove (1 d) on an instrument frame (1) positioned on the right side of a first measuring head mounting hole (1 c) through a center pin shaft, the lever (4) can rotate around the center pin shaft, a pressing column mounting hole (1 e) is formed in the instrument frame (1) corresponding to a pressing column (3), the lever mounting groove (1 d) is respectively communicated with the first measuring head mounting hole (1 c) and the pressing column mounting hole (1 e), the pressing column (3) is slidably mounted in the pressing column mounting hole (1 e), the top end of the pressing column (3) extends to the upper side of the instrument frame (1), and two ends of the lever (4) are respectively extended to the pressing column mounting hole (1 e) and the upper part of a first measuring head mounting sleeve (7) and are connected with the lower end of the pressing column (3) respectively, and the upper sliding of the first measuring head mounting sleeve (7) is driven by the pressing column (3) to finish measurement;
the instrument rack is provided with locking holes (b) corresponding to the first measuring head mounting holes (1 c) and the second measuring head mounting holes (1 i), threads are arranged in the locking holes (b), the locking holes (b) are positioned on the side surfaces of the first measuring head mounting holes (1 c) or the second measuring head mounting holes (1 i), the axes of the locking holes (b) are mutually perpendicular to the axes of the first measuring head mounting holes (1 c), the locking holes (b) are communicated with the corresponding first measuring head mounting holes (1 c) or second measuring head mounting holes (1 i), locking bolts are connected with the internal threads of the locking holes (b), and the side walls of the measuring rods of the dial indicators (2) or the side walls of the second measuring heads (6 a) are abutted tightly through the locking bolts;
the instrument rack (1) is provided with a yielding gap (1 b) near the top of one side of the pressing column (3), and the top end of the pressing column (3) extends out from the bottom side of the yielding gap (1 b).
2. The even-numbered-flute thread pitch diameter comparison measuring tool of claim 1, wherein: the utility model discloses a measuring notch, including instrument frame (1) and locking screw rod, including measuring notch (1 a), instrument frame (1) part on the right side is equipped with left and right extension, is used for holding tank (1 f) of supporting pole (5 a), supporting pole is arranged in holding tank (1 f), the upper and lower width of holding tank (1 f) is unanimous with the upper and lower width of measuring notch (1 a) to communicate with measuring notch (1 a), correspond holding tank (1 f) on the back of instrument frame (1) and be provided with adjustment tank (1 g) that extend from top to bottom, adjustment tank (1 g) communicate with each other with holding tank (1 f), sliding connection has slider (5 b) in adjustment tank (1 g), supporting pole (5 a) pass the supporting pole hole that corresponds on slider (5 b), the vertical through-hole (1 h) that is equipped with of corresponding holding tank (1 f) on the front of instrument frame (1), locking screw rod (5) stretches into in the locking screw rod hole of slider (5 b) after passing bar through-shaped through-hole (1 h), thereby realize locking position (5 h) corresponding to the position of slider (5 h) on the position of supporting pole (5 b).
3. The even-numbered-flute thread pitch diameter comparison measuring tool of claim 2, wherein: one end of the supporting rod (5 a) extending into the measuring notch is bent backwards.
4. The even-numbered-flute thread pitch diameter comparison measuring tool of claim 1, wherein: the bayonet (a) for the end part of the lever (4) to extend into is formed in each of the pressing column (3) and the first measuring head mounting sleeve (7), and the bayonet (a) on the pressing column (3) is a through hole, so that the rod body part of the lever (4) can penetrate through the bayonet (a) to extend to the other side of the pressing column (3), and the lever (4) can be mounted on the pressing column (3) and the first measuring head mounting sleeve (7) conveniently.
5. The even-numbered-groove thread pitch diameter comparison measuring tool according to claim 4, wherein: the length of the two force arms of the lever (4) is equal, the two ends of the lever (4) are all in round head shape, and the diameter of the round heads at the two ends of the lever (4) is larger than that of the rod bodies at the two sides.
6. The even-numbered-groove thread pitch diameter comparison measuring tool according to claim 5, wherein: the right front side of the lever installation groove (1 d) is provided with a cover plate (9) for covering the lever installation groove (1 d), and the instrument frame (1) is provided with a cover plate sinking groove for accommodating the cover plate (9), so that the cover plate (9) sinks into the instrument frame (1).
7. The even-numbered-flute thread pitch diameter comparison measuring tool of claim 1, wherein: the front side and the rear side of the instrument frame (1) are also provided with heat insulation gaskets (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110991268.6A CN113701598B (en) | 2021-08-26 | 2021-08-26 | Even number ditch screw pitch diameter comparison measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110991268.6A CN113701598B (en) | 2021-08-26 | 2021-08-26 | Even number ditch screw pitch diameter comparison measuring tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113701598A CN113701598A (en) | 2021-11-26 |
| CN113701598B true CN113701598B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110991268.6A Active CN113701598B (en) | 2021-08-26 | 2021-08-26 | Even number ditch screw pitch diameter comparison measuring tool |
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| CN (1) | CN113701598B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB888221A (en) * | 1959-04-07 | 1962-01-31 | Thomas Mercer Ltd | Instruments for use in gauging workpieces |
| CN86204885U (en) * | 1986-06-21 | 1987-09-16 | 钟建波 | Dial gauge for central diameter of internal thread |
| CN2389347Y (en) * | 1999-09-24 | 2000-07-26 | 徐敬千 | Measurer for taper screw of graphite electrode |
| CN200968846Y (en) * | 2006-08-18 | 2007-10-31 | 东风汽车有限公司 | Stepped hole depth measuring instrument |
| CH697619B1 (en) * | 2005-12-02 | 2008-12-31 | Martin Huerlimann | Adjustable holding device for dial gauge, has bars and cantilever beam that are connected to connecting part, and adjusting screw which is guided through bore in upper bar and through threaded bore, which is provided within beam |
| CN202304704U (en) * | 2011-10-21 | 2012-07-04 | 上海重型机器厂有限公司 | Lever measuring structure and deep hole diameter measuring device with the same |
| CN203069115U (en) * | 2013-02-02 | 2013-07-17 | 王军政 | Petroleum tubular goods taper thread internal tooth height measuring instrument |
| CN103900441A (en) * | 2014-04-15 | 2014-07-02 | 宁波慈星股份有限公司 | Steel wire swinging gauge of small faller |
| CN203824481U (en) * | 2014-04-01 | 2014-09-10 | 潍柴动力股份有限公司 | Intermediate-diameter measuring instrument for odd-number fluted taps |
| CN205580426U (en) * | 2015-11-23 | 2016-09-14 | 无锡巨通矿山机械有限公司 | Deep hole groove measuring tool |
| CN206311052U (en) * | 2017-01-06 | 2017-07-07 | 苏康 | A kind of coaxality measuring mechanism in adjustable hole |
| CN111238340A (en) * | 2020-03-18 | 2020-06-05 | 山东大学 | Inner diameter measuring device and method |
-
2021
- 2021-08-26 CN CN202110991268.6A patent/CN113701598B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB888221A (en) * | 1959-04-07 | 1962-01-31 | Thomas Mercer Ltd | Instruments for use in gauging workpieces |
| CN86204885U (en) * | 1986-06-21 | 1987-09-16 | 钟建波 | Dial gauge for central diameter of internal thread |
| CN2389347Y (en) * | 1999-09-24 | 2000-07-26 | 徐敬千 | Measurer for taper screw of graphite electrode |
| CH697619B1 (en) * | 2005-12-02 | 2008-12-31 | Martin Huerlimann | Adjustable holding device for dial gauge, has bars and cantilever beam that are connected to connecting part, and adjusting screw which is guided through bore in upper bar and through threaded bore, which is provided within beam |
| CN200968846Y (en) * | 2006-08-18 | 2007-10-31 | 东风汽车有限公司 | Stepped hole depth measuring instrument |
| CN202304704U (en) * | 2011-10-21 | 2012-07-04 | 上海重型机器厂有限公司 | Lever measuring structure and deep hole diameter measuring device with the same |
| CN203069115U (en) * | 2013-02-02 | 2013-07-17 | 王军政 | Petroleum tubular goods taper thread internal tooth height measuring instrument |
| CN203824481U (en) * | 2014-04-01 | 2014-09-10 | 潍柴动力股份有限公司 | Intermediate-diameter measuring instrument for odd-number fluted taps |
| CN103900441A (en) * | 2014-04-15 | 2014-07-02 | 宁波慈星股份有限公司 | Steel wire swinging gauge of small faller |
| CN205580426U (en) * | 2015-11-23 | 2016-09-14 | 无锡巨通矿山机械有限公司 | Deep hole groove measuring tool |
| CN206311052U (en) * | 2017-01-06 | 2017-07-07 | 苏康 | A kind of coaxality measuring mechanism in adjustable hole |
| CN111238340A (en) * | 2020-03-18 | 2020-06-05 | 山东大学 | Inner diameter measuring device and method |
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|---|---|
| CN113701598A (en) | 2021-11-26 |
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