CN113701598A - Even number ditch screw thread pitch diameter comparison measuring tool - Google Patents
Even number ditch screw thread pitch diameter comparison measuring tool Download PDFInfo
- Publication number
- CN113701598A CN113701598A CN202110991268.6A CN202110991268A CN113701598A CN 113701598 A CN113701598 A CN 113701598A CN 202110991268 A CN202110991268 A CN 202110991268A CN 113701598 A CN113701598 A CN 113701598A
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- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 15
- 238000001514 detection method Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001417523 Plesiopidae Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 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
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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 number 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 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 abutting rod, and the abutting rod extends to the right side of a gap between the first measuring head and the second measuring head; 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 the instrument stand top, and during first gauge head mounting hole was stretched to its measuring end, servo unit included the lever, and the center of lever is passed through the center pin and is fixed in the lever mounting groove. The pitch diameter of the even number groove thread 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-number groove threads.
Background
In the technical field of screw tap processing, after a mechanical structural part is manufactured and formed, form and position dimension elements of corresponding parts are required to be detected. There are many thread measuring devices on the market, but all are for odd number grooves, and fewer for even number grooves. For measuring the pitch diameter of the even-number groove thread, a three-pin measurement method is often used, and the three-pin measurement method is a method for indirectly and simply measuring the pitch diameter. During measurement, three measuring pins with the same diameter are placed in the grooves of the measured threads, wherein two measuring pins are placed in adjacent grooves on the same side, and the other measuring pin is placed in the middle groove corresponding to the measuring pins on the opposite side. After the measurement is finished, the measurement result needs to be calculated, data cannot be obtained visually, and errors are easy to generate in the calculation process. Moreover, parameters in the thread are required to be converted according to the thread form angles of different threads, and the parameters can be accurately obtained only by looking up the table when the thread form angles are not used, so that time and labor are wasted, and the efficiency is low. In addition, because the external screw thread of screw tap is the heliciform and arranges, it is very difficult to its measurement of screw thread, not only needs to consider measuring staff's manual skill, still needs to consider measuring staff's computing power.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art, and particularly provides a tool for comparing and measuring the pitch diameters of even-number groove threads, which can measure the pitch diameters of the even-number groove threads.
In order to achieve the above purpose, the invention provides a tool for comparing and measuring the pitch diameters of threads with even number of grooves, which comprises an instrument frame and a dial indicator arranged on the instrument frame, wherein the dial indicator is provided with a follow-up device and a press column, the left side of the instrument frame is provided with a measuring notch with an opening facing to the left side near the lower part, the dial indicator is provided with a first measuring head, the instrument frame is also provided with a second measuring head arranged opposite to the first measuring head, the instrument frame on the upper side of the measuring notch is provided with a first measuring head mounting hole which extends vertically and is communicated with the measuring notch, the instrument frame on the lower side of the measuring notch is provided with a second measuring head mounting hole which extends vertically and is communicated with the measuring notch, the first measuring head and the second measuring head are respectively arranged in the first measuring head mounting hole and the second measuring head mounting hole, and the first measuring head and the second measuring head are arranged at intervals relatively up and down, during measurement, a workpiece is arranged between the first measuring head and the second measuring head, a telescopic abutting rod is arranged on the instrument frame on the right side of the measuring gap, and the telescopic abutting rod extends to the right side of a gap between the first measuring head and the second measuring head and is used for abutting against the side face of the screw tap;
the first measuring head outer sleeve is provided with a first measuring head mounting sleeve, the first measuring head mounting sleeve is connected in a first measuring head mounting hole in a sliding mode, the upper end of the first measuring head mounting sleeve abuts against the measuring end of the dial indicator, the dial indicator is located above the instrument frame, the measuring end of the dial indicator extends into the first measuring head mounting hole, an elastic resetting 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 a first measuring head;
the servo device comprises a lever, the center of the lever is fixed in a lever mounting groove corresponding to an instrument frame 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 of the lever, a press column mounting hole is formed in the instrument frame in a pressing mode, the lever mounting groove is communicated with the first measuring head mounting hole and the press column mounting hole respectively, the press column is slidably mounted in the press column mounting hole, the top of the press column extends to the upper portion of the instrument frame, the two ends of the lever extend to the press column mounting hole and the first measuring head mounting hole respectively and are connected with the lower end of the press column and the upper portion of the first measuring head mounting sleeve, and the press column drives the first measuring head mounting sleeve to slide up and down to complete measurement.
In the scheme, the method comprises the following steps: the instrument frame is provided with locking holes corresponding to the first measuring head mounting hole and the second measuring head mounting hole, threads are arranged in the locking holes, the locking holes are located on the side faces of the first measuring head mounting hole or the second measuring head mounting hole, the axis of each locking hole is perpendicular to the axis of the corresponding first measuring head mounting hole, 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 in the locking holes in a threaded mode, and the side walls of the dial indicator measuring rod or the second measuring head are abutted tightly through the locking bolts. And the dial indicator and the second measuring head are installed through the locking bolt.
In the scheme, the method comprises the following steps: the instrument rack part on the right side of the measuring notch is provided with a holding tank which extends leftwards and rightwards and is used for holding a support rod, the support rod is located in the holding tank, the upper width and the lower width of the holding tank are consistent with the upper width and the lower width of the measuring notch, the holding tank is communicated with the measuring notch, an adjusting groove which extends upwards and downwards is arranged on the back face of the instrument rack, the adjusting groove is communicated with the holding tank, a sliding block is connected in the adjusting groove in a sliding mode, the support rod penetrates through a support rod hole corresponding to the sliding block, a strip-shaped through hole is vertically arranged on the front face of the instrument rack in a corresponding mode, the 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 on the strip-shaped through hole through the locking screw, so that the position of the support rod is adjusted. The abutting rod can be adjusted up and down, the abutting effect is improved, and the deviation of the screw tap is avoided.
In the scheme, the method comprises the following steps: one end of the abutting rod extending into the measuring gap is bent backwards. The side walls of the abutting rods are abutted, 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 one side according to the post and leans on the top to be equipped with the breach of stepping down, the top according to the post stretches out from the bottom side of the breach of stepping down. The position of the finger is lowered when the pressing column is pressed, so that the pressing column is convenient to press.
In the scheme, the method comprises the following steps: the pressing column and the first measuring head mounting sleeve are respectively provided with a bayonet which is just used for the end part of the lever to stretch into, the bayonet on the pressing column is a through hole, so that the rod body part of the lever can penetrate through the bayonet to stretch to the other side of the pressing column, and the lever is convenient to mount on the pressing column and the first measuring head mounting sleeve.
In the scheme, the method comprises the following steps: the two arm of force lengths of the lever are equal, the two ends of the lever are both round-head-shaped, and the diameters of the round heads at the two ends of the lever are larger than those of the rod bodies at the two sides. The prying is more convenient due to the round head shape, and the error is reduced. The arm of force is equal, then the equal moving distance of according to post and first gauge head, further reduce the error.
In the scheme, the method comprises the following steps: the positive front side of lever mounting groove is equipped with the apron for cover the lever mounting groove, just be equipped with the apron groove that is used for holding the apron on the instrument rack, make the apron sink into in the instrument rack.
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 rack.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: 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 method is convenient and rapid, uniform in stress, simple to operate and convenient to detect, and improves the detection efficiency; in addition, according to the technical scheme, after the first measuring head, the second measuring head and the abutting 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 an allowable error range, the workpiece to be detected is a qualified workpiece, the measured data does not need to be substituted into a formula to calculate the size of the middle diameter like a three-pin measuring method, and then whether the size of the middle diameter is qualified or not is compared, so that the efficiency is further improved, and errors are not prone to being generated in the calculating process.
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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a dial indicator, a first measuring head, a lever, a pressing column, a second measuring head and a resisting rod of the present invention;
FIG. 3 is a schematic view of the instrument stand of the present invention;
FIG. 4 is a cross-sectional view of the instrument holder;
FIG. 5 is a schematic view of an instrument holder, cover plate and insulating spacer;
FIG. 6 is an enlarged schematic view at A in FIG. 1;
FIG. 7 is a schematic view of the installation of the knock-out pin;
fig. 8 is a schematic view of fig. 7 with the knock-out lever and the slide removed.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in figures 1-8, the even number groove thread pitch diameter comparison measuring tool comprises an instrument frame 1 and a dial indicator 2 arranged on the instrument frame 1, wherein preferably, the dial indicator 2 is detachably arranged on the instrument frame 1 and can be replaced according to requirements of different precisions. Specifically, be equipped with first gauge head mounting hole 1c on instrument rack 1, the measuring stick of percentage table 2 stretches into in 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 is mutually perpendicular with first gauge head mounting hole 1 c's axis, and locking hole b communicates with each other with first gauge head mounting hole 1c, be equipped with the locking bolt in the locking hole b, the lateral wall through the locking bolt supports the lateral wall of percentage table 2 measuring stick tightly, realize fixedly.
Preferably, one side of the instrument frame 1 is concavely provided with a measuring notch 1a, the dial indicator 2 is positioned right above the measuring notch 1a, the bottom end of the dial indicator 2 is provided with a first measuring head fixing sleeve 7 which is abutted against the measuring end of the first measuring head fixing sleeve, and the first measuring head fixing sleeve 7 slides in the first measuring head mounting hole 1 c. Be equipped with elasticity resetting means 8 between percentage table 2 and the first gauge head installation cover 7, elasticity resetting means 8 is the spring, and the diameter of the bottom of percentage table 2 measuring stick is less than the diameter on measuring stick upper portion, makes the 8 overcoat of elasticity resetting means just on the less position of diameter, and the bottom of elasticity resetting means 8 offsets with the 7 tops of first gauge head installation cover to this realizes the installation of elasticity resetting means 8.
The bottom end of the first measuring head mounting sleeve 7 is sleeved with a first measuring head 7a, 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 of the lever 4 is rotatably connected onto the instrument rack 1, and the pressing column 3 drives the first measuring head mounting sleeve 7 to slide up and down to complete measurement. Specifically, all be equipped with the bayonet socket a that supplies 4 tip of lever to stretch into just on pressing post 3 and the first gauge head installation cover 7, preferably, the both ends of lever 4 are all established to the button head form, and it is more convenient to prize to reduce the error. And the diameter of the button head at the two ends of the lever 4 is larger than 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 installed on the pressing column 3 and the first measuring head installation 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 pressing column hole 1e, the pressing column 3 is slidably connected in the pressing column hole 1e, and the end of the pressing column 3, which is not provided with the bayonet a, extends out of the instrument frame 1 for a measurer to press. Preferably, according to post 3 vertical setting, its top is stretched outside instrument rack 1, and instrument rack 1 top is close to the right side and is equipped with the breach of stepping down 1b, and the top of pressing post 3 stretches out from the bottom side of the breach of stepping down 1b, reduces the position that the finger was located when pressing, is convenient for press and presses post 3.
A second measuring head 6a is arranged directly below the measuring gap 1a, preferably, the second measuring head 6a is adjustably connected to the instrument holder 1. Specifically, the fixed cover 6 of second gauge head is equipped with to the overcoat of second gauge head 6, is equipped with on the instrument rack 1 and supplies the fixed cover 6 of second gauge head to follow its axially sliding second gauge head mounting hole 1i, and one side of second gauge head mounting hole 1i is equipped with the locking hole b of extending around, and locking hole b communicates with each other with second gauge head mounting hole 1i, also is equipped with the locking bolt in the locking hole b, supports the fixed cover side of gauge head tightly through the side of this locking bolt, realizes fixedly.
The other side of the measuring gap 1a is provided with a horizontally arranged abutting rod 5a for abutting against the side face of the screw tap, and the abutting rod 5a is adjustably connected to the instrument frame 1. The vertical adjustment tank 1g that is equipped with in the back of instrument rack 1, sliding connection has slider 5b in the adjustment tank 1g, and the vertical bar through-hole 1h that is equipped with on the tank bottom of adjustment tank 1g, slider 5 b's front side threaded connection has locking screw 5, locks on bar through-hole 1h through locking screw 5. The slider 5b is provided with a through hole extending left and right for the abutting rod 5a to slide left and right, and simultaneously, the bottom end of the locking screw rod 5 extends into the through hole and abuts against the abutting rod 5a through the locking screw rod 5. Preferably, instrument rack 1 is provided with holding tank 1f that extends about, communicates with adjustment tank 1g, supports pole 5a and can remove about in holding tank 1f to combine vertical adjustment tank 1g and the bar through-hole 1h that sets up, make support pole 5a can adjust about from top to bottom. One end, close to the first measuring head 7a, of the abutting rod 5a is bent backwards and extends, and the abutting rod 5a abuts against the side wall of the abutting rod, so that the contact area is increased, and the stability is improved.
Preferably, the instrument holder 1 is provided with a lever installation groove 1d for receiving the lever 4, and the lever 4 can freely rotate in the lever installation groove 1 d. Namely, with lever 4 embedding on instrument rack 1, avoid in the measurement process, staff or external object touch lever 4, influence measuring result, can also save space simultaneously, improve whole aesthetic measure. Preferably, the cover plate 9 is disposed right in front of the lever mounting groove 1d, and can completely cover the lever mounting groove 1d, so as to prevent the lever 4 from being blocked and being unable to rotate or generating a measurement error due to falling dust or scraps. Preferably, a fulcrum hole extending back and forth is formed in the middle point of the lever 4, and a mounting hole coaxial with the fulcrum hole of the lever 4 is formed in the cover plate 9. The mounting bolt matched with the mounting hole sequentially penetrates through the mounting hole of the cover plate 9 and the fulcrum hole of the lever 4, the bottom end of the mounting bolt is in threaded connection with the bottom of the lever mounting groove 1d, and the mounting bolt serves as a fulcrum of the lever 4. Preferably, the instrument rack 1 is provided with a cover plate sinking groove for receiving the cover plate 9 so that the cover plate 9 sinks into the instrument rack 1.
Preferably, heat insulating gasket 10 is arranged on the front side and the rear side of instrument stand 1, and heat insulating gasket 10 can completely cover the handheld portion, so that instrument stand 1 body is prevented from being deformed by human body temperature, errors are avoided, and measurement accuracy is improved. Be equipped with a plurality of gasket mounting hole on instrument rack 1, install the gasket on instrument rack 1 through the gasket mounting hole. The heat insulating spacer 10 is located on the other side of the measurement gap 1a to avoid affecting the measurement.
The bottom end of the first measuring head 7a is concavely provided with a positioning groove 7b for clamping the threads, two side walls of the positioning groove 7b are inclined by the notch and are arranged in an open shape, the inclined shape is convenient for clamping and positioning the threads and is attached to the threads, and the opening size of the positioning groove 7b is equal to the integral multiple of the width of the thread opening of the clamped threads. The top end of the second measuring head 6a is provided with a groove for the outer end edge of the screw thread 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 is conveniently placed into the sample. And recording the reading of the sample detection to finish the preparation work.
During the measurement, press the press column 3, raise first gauge head 7a, will wait to detect the screw thread mouth card of the work piece downside of detecting in the recess on second gauge head 6a top, simultaneously, will wait to detect the screw thread card of the work piece upside of detecting in constant head tank 7b to the adjustment is to the lateral wall laminating of threaded lateral wall and constant head tank 7b, accomplishes the installation. And (3) loosening the pressing column 3 to enable the first measuring head 7a to prop the workpiece to be detected on the second measuring head 6a in a natural state, comparing the reading of the dial indicator 2 with the recorded reading of the sample detection, and if the difference value is within an allowable error range, indicating that the workpiece to be detected is a qualified workpiece, so as to finish the comparative measurement between the workpiece to be detected and the sample. Of course, the dial plate of the dial indicator 2 can be directly rotated to the position where the pointer points to 0 after the sample is detected, the zero point is directly used as a reference value, an error value can be directly detected, the measurement is a result, the calculation steps are reduced, the efficiency is further improved, and workers can select between the two reading modes according to actual conditions.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a measuring tool is compared to even number ditch screw pitch diameter, includes meter rack (1) and installs percentage table (2) on meter rack (1), percentage table (2) are equipped with servo device and press post (3), its characterized in that: the left side of the instrument frame (1) is provided with a measuring notch (1a) with an opening facing to the left side by the lower part, the dial indicator (2) is provided with a first measuring head (7a), the instrument frame (1) is also provided with a second measuring head (6a) arranged opposite to the first measuring head (7a), the instrument frame (1) on the upper side of the measuring notch (1a) is provided with a first measuring head mounting hole (1c) which vertically extends and is communicated with the measuring notch (1a), the instrument frame (1) on the lower side of the measuring notch (1a) is provided with a second measuring head mounting hole (1i) which vertically extends and is communicated with the measuring notch (1a), the first measuring head (7a) and the second measuring head (6a) are respectively arranged in the first measuring head mounting hole (1c) and the second measuring head mounting hole (1i), and the first measuring head (7a) and the second measuring head (6a) are arranged at relative intervals up and down, during measurement, a workpiece is arranged between a first measuring head (7a) and a second measuring head (6a), a telescopic abutting rod (5a) is arranged on an instrument frame (1) on the right side of a measurement gap (1a), and the telescopic abutting rod (5a) extends to the right side of a gap between the first measuring head (7a) and the second measuring head (6a) and is used for abutting against the side face of a screw tap;
the first measuring head mounting sleeve (7) is sleeved outside the first measuring head (7a), the first measuring head mounting sleeve (7) is connected in the first measuring head mounting hole (1c) in a sliding mode, the upper end of the first measuring head mounting sleeve (7) abuts against the measuring end of the dial indicator (2), the dial indicator (2) is located above the instrument frame (1), the measuring end of the dial indicator extends into the first measuring head mounting hole (1c), an elastic resetting 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 servo device comprises a lever (4), the center of the lever (4) is fixed on an instrument frame (1) on the right side of a first measuring head mounting hole (1c) through a center pin shaft in a corresponding lever mounting groove (1d), the lever (4) can rotate around the center pin shaft (4a), a press column mounting hole (1e) is arranged on the instrument frame (1) in a corresponding press column (3), the lever mounting groove (1d) is respectively communicated with the first measuring head mounting hole (1c) and the press column mounting hole (1e), the press column (3) is slidably mounted in the press column mounting hole (1e), the top end of the press column (3) extends to the upper part of the instrument frame (1), the two ends of the lever (4) are respectively extended to the press column mounting hole (1e) and the first measuring head mounting hole (1c) and are connected with the lower end of the press column (3) and the upper part of a first measuring head mounting sleeve (7), the first measuring head mounting sleeve (7) is driven to slide up and down by pressing the pressing column (3), and measurement is completed.
2. The even-number groove thread pitch diameter comparison measuring tool according to claim 1, wherein: the instrument frame is provided with a first measuring head mounting hole (1c) and a second measuring head mounting hole (1i) corresponding to each other, a locking hole (b) is formed in the locking hole (b), threads are arranged in the locking hole (b), the locking hole (b) is located on the side face of the first measuring head mounting hole (1c) or the side face of the second measuring head mounting hole (1i), the axis of the locking hole (b) is perpendicular to the axis of the first measuring head mounting hole (1c), the locking hole (b) is communicated with the corresponding first measuring head mounting hole (1c) or the corresponding second measuring head mounting hole (1i), a locking bolt is connected to the inner thread of the locking hole (b), and the side wall of a measuring rod of a dial indicator (2) or the side wall of a second measuring head (6a) is abutted through the locking bolt.
3. The even-number groove thread pitch diameter comparison measuring tool according to claim 2, wherein: the instrument rack (1) on the right side of the measurement notch (1a) is provided with a holding groove (1f) extending left and right and used for holding a support rod (5a), the support rod is positioned in the holding groove (1f), the upper and lower widths of the holding groove (1f) are consistent with the upper and lower widths of the measurement notch (1a) and communicated with the measurement notch (1a), the back surface of the instrument rack (1) is provided with an adjusting groove (1g) extending up and down corresponding to the holding groove (1f), the adjusting groove (1g) is communicated with the holding groove (1f), the adjusting groove (1g) is internally connected with a sliding block (5b), the support rod (5a) penetrates through a corresponding support rod hole in the sliding block (5b), the front surface of the instrument rack (1) is vertically provided with a bar-shaped through hole (1h) corresponding to the holding groove (1f), and a locking screw (5) penetrates through the bar-shaped through hole (1h) and then extends into a locking screw hole in the sliding block (5b), the sliding block (5b) is locked at the corresponding position on the strip-shaped through hole (1h) through the locking screw rod (5), so that the position adjustment of the abutting rod (3) is realized.
4. The even-number groove thread pitch diameter comparison measuring tool according to claim 3, wherein: one end of the abutting rod (5a) extending into the measuring gap is bent backwards.
5. The even-number groove thread pitch diameter comparison measuring tool according to claim 1, wherein: instrument rack (1) is provided with one side according to post (3) and leans on the top to be equipped with notch of stepping down (1b), the top according to post (3) stretches out from the bottom side of notch of stepping down (1 b).
6. The even-number groove thread pitch diameter comparison measuring tool according to claim 1, wherein: according all to be equipped with bayonet socket (a) that supplies lever (4) tip to stretch into on post (3) and first gauge head installation cover (7) just, bayonet socket (a) on according to post (3) is the through-hole for the body of rod part of lever (4) can pass bayonet socket (a) and stretch to according to the other one side of post (3), is convenient for install according to post (3) and first gauge head installation cover (7) with lever (4).
7. The even-number groove thread pitch diameter comparison measuring tool according to claim 6, wherein: two arm of force lengths of lever (4) equal, and the both ends of lever (4) all establish to the button head form, and the diameter of the button head at lever (4) both ends is greater than the body of rod of both sides.
8. The even-numbered groove thread pitch diameter comparison measuring tool according to claim 7, wherein: the positive front side of lever mounting groove (1d) is equipped with apron (9) for cover lever mounting groove (1d), just be equipped with the apron that is used for holding apron (9) on instrument rack (1) and sink the groove, make apron (9) sink in instrument rack (1).
9. The even-number groove thread pitch diameter comparison measuring tool according to claim 1, wherein: and heat insulation gaskets (10) are arranged on the front side and the rear side of the instrument rack (1).
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN113701598A true CN113701598A (en) | 2021-11-26 |
| CN113701598B CN113701598B (en) | 2024-01-19 |
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| CN202110991268.6A Active CN113701598B (en) | 2021-08-26 | 2021-08-26 | Even number ditch screw pitch diameter comparison measuring tool |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| 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 |
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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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| Publication number | Publication date |
|---|---|
| CN113701598B (en) | 2024-01-19 |
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