CN203824481U - Intermediate-diameter measuring instrument for odd-number fluted taps - Google Patents

Intermediate-diameter measuring instrument for odd-number fluted taps Download PDF

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Publication number
CN203824481U
CN203824481U CN201420153387.XU CN201420153387U CN203824481U CN 203824481 U CN203824481 U CN 203824481U CN 201420153387 U CN201420153387 U CN 201420153387U CN 203824481 U CN203824481 U CN 203824481U
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CN
China
Prior art keywords
measuring instrument
screw tap
dial gauge
odd number
pitch diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420153387.XU
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Chinese (zh)
Inventor
宋建民
郭明文
刘金钊
张乐振
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN201420153387.XU priority Critical patent/CN203824481U/en
Application granted granted Critical
Publication of CN203824481U publication Critical patent/CN203824481U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an intermediate-diameter measuring instrument for odd-number fluted taps. The intermediate-diameter measuring instrument comprises a pedestal, and an axial clamping mechanism installed on the pedestal and being capable of axial clamping the tap along the horizontal direction. An indicating gauge position adjusting device for adjusting the position along the vertical direction is arranged on the pedestal, and a dial gauge is installed on the indicating gauge position adjusting device. The dial gauge comprises an indicating gauge head and a measuring rod under the gauge head of the indicating gauge. A flat probe is arranged on the lower end of the measuring rod, and the lower surface of the flat probe is provided with a plane perpendicular to the measuring rod. The intermediate-diameter measuring instrument can be used to accurately measure the intermediate-diameter of odd-number fluted taps in different sizes.

Description

A kind of the trough screw tap pitch diameter of odd number measuring instrument
Technical field
The utility model relates to a kind of the trough screw tap pitch diameter of odd number measuring instrument.
Background technology
For screw tap central diameter, conventional measuring method is to adopt three pin mensurations.When measurement, during tooth that three precision metering pins very high, that diameter is identical are placed on to tested screw thread is recessed, measure size compared with instrument, horizontal metroscope etc. with the measurement instrument of measuring outside dimension as milscale, mechanical comparator, light.In the time measuring, by diameter, three identical metering pins are placed in the groove of tested screw thread specifically, wherein two are placed in the groove that homonymy is adjacent, another root is placed in the middle groove of answering in contrast on opposite, measure metering pin gabarit ultimate range, according to the pitch of tested screw thread, thread form half-angle and metering pin diameter, calculate the pitch diameter of thread again.But for tap with odd slots, because its groove number distributing is that odd number and each groove are asymmetric, be difficult to measure metering pin gabarit ultimate range on the circumference of 360 °, therefore cannot measure with conventional mensuration.
Summary of the invention
The purpose of this utility model is to provide a kind of the trough screw tap pitch diameter of odd number measuring instrument, with it can accurately measure the central diameter of tap with odd slots.
For achieving the above object, the utility model comprises base, on base, be provided with and can realize along continuous straight runs by the axial clamping device of screw tap axial grip, the dial gauge apparatus for adjusting position that can realize vertical direction position adjustments is also installed on base, on dial gauge apparatus for adjusting position, dial gauge is installed, described dial gauge comprises dial gauge gauge outfit and the sounding rod that is positioned at dial gauge gauge outfit lower end, and the lower end of sounding rod is provided with flat gauge head, and the lower surface of flat gauge head is provided with the plane perpendicular with sounding rod.
Described axial clamping device comprises being arranged on and on base, is positioned at the left support abutment in left side and is arranged on the right support abutment that is positioned at right side and can horizontally slips on base, on left support abutment, be provided with left top, on right support abutment, be provided with right top, left top and right top coaxial setting.
On described base, be provided with successively from front to back rail plate and parallel with it T-shaped groove, the bottom of right support abutment is provided with the groove coordinating with rail plate, right support abutment is provided with through hole, in through hole, be coated with T-shaped bolt, the head of T-shaped bolt is positioned at T-shaped groove, and the top of T-shaped bolt is connected with check nut.
Described rail plate is to protrude base upper surface and cross section convex tendon triangular in shape, and the shape of described right support abutment bottom groove and the shape of rail plate adapt.
The top of described right support abutment is provided with sleeve, the right-hand member of sleeve is connected with closure plate, the centre of closure plate is coated with rotating central shaft, the right-hand member of central shaft is connected with rotation handwheel, the left end of central shaft is provided with external thread, the sliding shoe that the shape that can horizontally slip is roughly column type is installed in sleeve, the right-hand member of sliding shoe offers threaded hole, the external thread of central shaft left end matches with this threaded hole, the top of sliding shoe offers the strip groove extending along left and right directions, the top of sleeve offers through hole, in this through hole, be coated with register pin, the lower end of register pin extend in strip groove, the right top left end that is arranged on sliding shoe.
Described dial gauge apparatus for adjusting position comprises the pedestal being arranged on base, vertical guide rod is installed on pedestal, vertically the top of guide rod is provided with screw thread, vertically on guide rod, be screwed with height setting nut movable up and down, vertically on guide rod, be also set with the slip cap that is positioned at height setting nut top, on slip cap, be connected with support arm, described dial gauge is arranged on support arm.
One side of described slip cap is provided with opening, the both sides of opening are respectively provided with a lug being connected on slip cap, two lugs connect fastening by fastening bolt, the mounting hole that fastening bolt is provided with through one of them lug is connected with the threaded hole on another lug.
The free end of described support arm is connected with strap, is equipped with opposedly for clamping the semicircle orifice of described dial gauge gauge outfit bottom on support arm and strap, and described dial gauge is arranged on support arm by strap.
On described pedestal, be provided with successively from front to back rail plate and parallel with it T-shaped groove, the bottom of pedestal is provided with the groove coordinating with rail plate, and pedestal is provided with through hole, is coated with T-shaped bolt in through hole, the head of T-shaped bolt is positioned at T-shaped groove, and the top of T-shaped bolt is connected with check nut.
Described rail plate is to protrude base upper surface and cross section convex tendon triangular in shape, and the shape of described base bottom groove and the shape of rail plate adapt.
When use, unclamp for being connected to the check nut on the T-shaped bolt on right support abutment, slip right support abutment is to suitable position, check nut is tightened, by screw tap be placed in left top and right top between, with hand rotation handwheel, central shaft rotates, by be located at external thread on central shaft and threaded hole coordinate drive sliding shoe to slide left, the right top axial grip that can realize screw tap that is moved to the left, rotating height setting nut can make it move up and down along vertical guide rod, slip cap and the support arm connecting on it rise thereupon or fall, can realize the adjusting of dial gauge upper-lower position, subsequently, tighten fastening bolt, the relative locking that can realize between slip cap and vertical guide rod is determined, complete the position adjustments to dial gauge.When measurement, first insert single metering pin with what make in advance with the isometric standard thread length bar of tested screw tap, it is zero position that pointer is adjusted to in the position of dial gauge, then change tested screw tap, can record tested screw tap and standard thread length bar dimensional discrepancy by the pointer position of interpretation dial gauge.Add the numerical value of dimensional discrepancy by the size of standard thread length bar, be the measurement size of tested screw tap.According to the pitch of tested screw tap, thread form half-angle and metering pin diameter, calculate the pitch diameter of thread of tested screw tap again.
Adopt after said structure, utilize relative method to replace milscale symmetrical measurement method, can realize the accurate measurement to the trough screw tap pitch diameter of odd number.Axial clamping by axial clamping winding machine to screw tap, right support abutment can be on base slidably structure can realize the measurement to different length screw tap, right top structure that can left and right fine setting on right support abutment can be more easy to use; Can be by the adjustment of dial gauge upper-lower position be realized to the dimensional measurement to different size screw tap by dial gauge apparatus for adjusting position, pedestal slidably arranges on base can be according to the different adjustment dial gauge of tested tap length in the position of left and right directions, and it is more accurate to make to measure; Replace original original dial gauge gauge head by improved flat gauge head, utilize the plane of flat gauge head below and the Surface Contact of metering pin, meet with metering pin and measure the desired measuring condition of screw tap central diameter, measure more accurately and reliably.
figure of description
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described in detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that Fig. 1 removes the vertical view after dial gauge;
Fig. 3 is the cut-open view along A-A direction in Fig. 1;
Fig. 4 is the structural representation of dial gauge apparatus for adjusting position in the utility model;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the left view of Fig. 4;
Fig. 7 is the cut-open view of right support abutment superstructure in the utility model.
Embodiment
With reference to accompanying drawing, the utility model comprises base 1, is provided with and can realizes along continuous straight runs by the axial clamping device of screw tap axial grip on base 1.This axial clamping device comprises being arranged on and on base 1, is positioned at the left support abutment 6 in left side and is arranged on the right support abutment 7 that is positioned at right side and can horizontally slips on base 1.In order to realize right support abutment 7 horizontally slipping on base 1, on base 1, be provided with successively from front to back rail plate 14 and parallel with it T-shaped groove 10, the bottom of right support abutment 7 is provided with the groove coordinating with rail plate 14.Rail plate 14 shown in Fig. 3 is for protruding base 1 upper surface and cross section convex tendon triangular in shape.Right support abutment 7 is provided with through hole, is coated with T-shaped bolt in through hole, and the head of T-shaped bolt is positioned at T-shaped groove 10, and the top of T-shaped bolt is connected with check nut.The top of left support abutment 6 is provided with left top 8.The top of right support abutment 6 is provided with the sleeve 15 that its endoporus left and right connects, the right-hand member of sleeve 15 is connected with closure plate 27, the centre of closure plate 27 is coated with rotating central shaft 28, central shaft 28 is provided with the shaft shoulder 29 near closure plate 27 left-hand portion, central shaft 28 is set with and rotates handwheel 17 near closure plate 27 right sides, rotate between handwheel 17 and central shaft 28 and fix with latch 35, the left side of handwheel 17 is provided with boss 34.The shaft shoulder 29 and boss 34 can ensure not have between central shaft 28 and closure plate 27 relative displacement of left and right directions.The left end of central shaft 28 is provided with external thread, and the sliding shoe 30 that the shape that can horizontally slip is roughly column type is installed in sleeve 15, and the right-hand member of sliding shoe 30 offers threaded hole, and the external thread of central shaft 28 left ends matches with this threaded hole.The top of sliding shoe 30 offers the strip groove 31 extending along left and right directions, and the top of sleeve 15 offers through hole, is coated with register pin 32 in this through hole, and the lower end of register pin 32 extend in strip groove 31.The effect of register pin 32 and strip groove 31 thereof is the rotation of anti-skidding piece 30 and ensures that it can horizontally slip, and in the time that central shaft 28 rotates, coordinates to drive horizontally slipping of sliding shoe 30 by what be located at external thread on central shaft 28 and threaded hole.The left end of sliding shoe 30 is provided with right top 9.Right top 9 and left top 8 coaxially arrange.Said structure is a kind of embodiment of axial clamping device, and axially clamping device also adopts other known structure certainly, does not repeat.
With reference to accompanying drawing, the dial gauge apparatus for adjusting position that can realize vertical direction position adjustments is also installed on base 1.This dial gauge apparatus for adjusting position comprises the pedestal 18 being arranged on base 1, the bottom of pedestal 18 is provided with the groove coordinating with rail plate 14, and pedestal 18 is provided with through hole, is coated with T-shaped bolt in through hole, the head of T-shaped bolt is positioned at T-shaped groove 10, and the top of T-shaped bolt is connected with check nut.In the present embodiment, pedestal 18 shares a rail plate 14 and T-shaped groove 10 with right support abutment 7.Vertical guide rod 19 is installed on pedestal 18, and vertically the top of guide rod 19 is provided with screw thread, vertically on guide rod 19, is screwed with height setting nut 20 movable up and down.Vertically on guide rod 19, be also set with the slip cap 21 that is positioned at height setting nut 20 tops, one side of slip cap 21 is provided with opening, the both sides of opening are respectively provided with a lug 23 being connected on slip cap 21, two lugs 23 connect fastening by fastening bolt, the mounting hole that fastening bolt is provided with through one of them lug 23 is connected with the threaded hole on another lug 23.Screw fastening bolt, can realize slip cap 21 and the vertically locking between guide rod 19 by the distance furthering between two lugs 23.The opposite side of slip cap 21 is connected with support arm 22, and the free end of above-mentioned support arm 22 has been bolted strap 33, is equipped with opposed for clamping the semicircle orifice of dial gauge gauge outfit 3 bottoms on support arm 22 and strap 33.Dial gauge 2 is arranged on support arm 22 by above-mentioned strap 33.Dial gauge 2 comprises dial gauge gauge outfit 3 and the sounding rod 4 that is positioned at dial gauge gauge outfit 3 lower ends, and the lower end of sounding rod 4 is provided with flat gauge head 5, and the lower surface of flat gauge head 5 is provided with the plane perpendicular with sounding rod 4.Dial gauge gauge outfit 3 can adopt existing dial gauge to remove the part outside sounding rod and the measuring head of bottom.
When use, unclamp the check nut on the T-shaped bolt being connected on right support abutment 7, slip right support abutment 7 is to suitable position, check nut is tightened, screw tap is placed between left top 8 and right top 9, with hand rotation handwheel 17, central shaft 28 rotates, by be located at external thread on central shaft 28 be located at threaded hole on sliding shoe 30 coordinate drive sliding shoe 30 to slide left, right top 9 are moved to the left the axial grip that can realize screw tap, rotating height setting nut 20 can make it move up and down along vertical guide rod 19, slip cap 21 and the support arm 22 connecting on it rise thereupon or fall, can realize the adjusting of dial gauge 2 upper-lower positions, subsequently, tighten fastening bolt, can realize slip cap 21 and the vertically relative locking between guide rod 19, complete the position adjustments to dial gauge 2.When measurement, first insert single metering pin with what make in advance with the isometric standard thread length bar of tested screw tap, the plane of below and the upper surface of metering pin that are positioned at flat gauge head 5 contact, it is zero position that pointer is adjusted to in the position of dial gauge 2, then change tested screw tap and insert single metering pin, can record tested screw tap and standard thread length bar dimensional discrepancy by the pointer position of interpretation dial gauge 2.Add the numerical value of dimensional discrepancy by the size of standard thread length bar, be the measurement size of tested screw tap.According to the pitch of tested screw tap, thread form half-angle and metering pin diameter, calculate the pitch diameter of thread of tested screw tap again.

Claims (10)

1. a trough screw tap pitch diameter of odd number measuring instrument, it is characterized in that comprising base (1), on base (1), be provided with and can realize along continuous straight runs by the axial clamping device of screw tap axial grip, the dial gauge apparatus for adjusting position that can realize vertical direction position adjustments is also installed on base (1), dial gauge (2) is installed on dial gauge apparatus for adjusting position, described dial gauge (2) comprises dial gauge gauge outfit (3) and is positioned at the sounding rod (4) of dial gauge gauge outfit (3) lower end, the lower end of sounding rod (4) is provided with flat gauge head (5), the lower surface of flat gauge head (5) is provided with the plane perpendicular with sounding rod.
2. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 1, it is characterized in that described axial clamping device comprises being arranged on is positioned at the left support abutment (6) in left side and is arranged on the right support abutment (7) that is positioned at right side and can horizontally slips on base (1) on base (1), left top (8) are installed on left support abutment (6), right top (9) are installed on right support abutment (7), and left top (8) and right top (9) coaxially arrange.
3. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 2, it is characterized in that being provided with successively from front to back on described base (1) rail plate (14) and parallel with it T-shaped groove (10), the bottom of right support abutment (7) is provided with the groove coordinating with rail plate (14), right support abutment (7) is provided with through hole, in through hole, be coated with T-shaped bolt, the head of T-shaped bolt is positioned at T-shaped groove (10), and the top of T-shaped bolt is connected with check nut.
4. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 3, it is characterized in that described rail plate (14) is for protruding base upper surface and cross section convex tendon triangular in shape, the shape of described right support abutment (7) bottom groove and the shape of rail plate (14) adapt.
5. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 2, the top that it is characterized in that described right support abutment (7) is provided with sleeve (15), the right-hand member of sleeve (15) is connected with closure plate (27), the centre of closure plate (27) is coated with rotating central shaft (28), the right-hand member of central shaft (28) is connected with and rotates handwheel (17), the left end of central shaft (28) is provided with external thread, the sliding shoe (30) that the shape that can horizontally slip is roughly column type is installed in sleeve (15), the right-hand member of sliding shoe (30) offers threaded hole, the external thread of central shaft (28) left end matches with this threaded hole, the top of sliding shoe (30) offers the strip groove (31) extending along left and right directions, the top of sleeve (15) offers through hole, in this through hole, be coated with register pin (32), the lower end of register pin (32) extend in strip groove (31), the described right side top (9) is arranged on the left end of sliding shoe (30).
6. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 1, it is characterized in that described dial gauge apparatus for adjusting position comprises the pedestal (18) being arranged on base (1), vertical guide rod (19) is installed on pedestal (18), vertically the top of guide rod (19) is provided with screw thread, vertically on guide rod (19), be screwed with height setting nut movable up and down (20), vertically on guide rod (19), be also set with the slip cap (21) that is positioned at height setting nut (20) top, on slip cap (21), be connected with support arm (22), described dial gauge (2) is arranged on support arm (22).
7. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 6, a side that it is characterized in that described slip cap (21) is provided with opening, the both sides of opening are respectively provided with a lug (23) being connected on slip cap (21), two lugs (23) connect fastening by fastening bolt, the mounting hole that fastening bolt is provided with through one of them lug (23) is connected with the threaded hole on another lug (23).
8. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 6, the free end that it is characterized in that described support arm (22) is connected with strap (33), on support arm (22) and strap (33), be equipped with opposedly for clamping the semicircle orifice of described dial gauge gauge outfit (3) bottom, described dial gauge (2) is arranged on support arm (22) by strap (33).
9. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 6, it is characterized in that being provided with successively from front to back on described pedestal (18) rail plate (14) and parallel with it T-shaped groove (10), the bottom of pedestal (18) is provided with the groove coordinating with rail plate (14), pedestal (18) is provided with through hole, in through hole, be coated with T-shaped bolt, the head of T-shaped bolt is positioned at T-shaped groove (10), and the top of T-shaped bolt is connected with check nut.
10. a kind of the trough screw tap pitch diameter of odd number measuring instrument as claimed in claim 9, it is characterized in that described rail plate (14) is for protruding base upper surface and cross section convex tendon triangular in shape, the shape of described pedestal (18) bottom groove and the shape of rail plate (14) adapt.
CN201420153387.XU 2014-04-01 2014-04-01 Intermediate-diameter measuring instrument for odd-number fluted taps Expired - Fee Related CN203824481U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066936A (en) * 2015-07-31 2015-11-18 重庆华瑞标准件制造有限公司 Rapid measurement device of rectangular thread screw pitch diameter and usage method thereof
CN105108220A (en) * 2015-08-25 2015-12-02 烟台东泽电气科技有限公司 Automatic bearing bush refuse chute milling machine system
CN106524956A (en) * 2016-12-14 2017-03-22 江门市力泰科技有限公司 Adjustable shaft outer diameter measuring tool
CN106767325A (en) * 2016-11-29 2017-05-31 天津大学 Conduit profile instrument and lining instrument
CN107514962A (en) * 2017-09-04 2017-12-26 武汉共康汽车零部件有限公司 Three pin shaft forks measure chamfering to reference plane measurer
CN108592809A (en) * 2018-07-19 2018-09-28 中国北方车辆研究所 Tap with odd slots screw thread simple pitch diameter measurement method based on arc eyepiece
CN108955492A (en) * 2018-08-15 2018-12-07 重庆青山工业有限责任公司 Measure the method and device of axis tooth part straight-tooth chamfer machining residual volume
CN111043976A (en) * 2019-12-10 2020-04-21 安徽瑞之星电缆集团有限公司 Cable detection device
CN113701598A (en) * 2021-08-26 2021-11-26 四川川昊精工机械有限公司 Even number ditch screw thread pitch diameter comparison measuring tool
CN114152165A (en) * 2021-11-29 2022-03-08 上海中船三井造船柴油机有限公司 Accurate measurement device and method for super-large-size hole
CN114777622A (en) * 2022-05-12 2022-07-22 四川英诺航空科技有限公司 Screw tap front angle measuring device and measuring method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066936B (en) * 2015-07-31 2018-05-04 重庆华瑞标准件制造有限公司 The rapid measurement device and its application method of rectangle tooth screw central diameter
CN105066936A (en) * 2015-07-31 2015-11-18 重庆华瑞标准件制造有限公司 Rapid measurement device of rectangular thread screw pitch diameter and usage method thereof
CN105108220A (en) * 2015-08-25 2015-12-02 烟台东泽电气科技有限公司 Automatic bearing bush refuse chute milling machine system
CN106767325A (en) * 2016-11-29 2017-05-31 天津大学 Conduit profile instrument and lining instrument
CN106524956A (en) * 2016-12-14 2017-03-22 江门市力泰科技有限公司 Adjustable shaft outer diameter measuring tool
CN107514962B (en) * 2017-09-04 2020-07-24 武汉共康汽车零部件有限公司 Measuring tool for measuring chamfer angle to reference surface by three-pin shaft fork
CN107514962A (en) * 2017-09-04 2017-12-26 武汉共康汽车零部件有限公司 Three pin shaft forks measure chamfering to reference plane measurer
CN108592809A (en) * 2018-07-19 2018-09-28 中国北方车辆研究所 Tap with odd slots screw thread simple pitch diameter measurement method based on arc eyepiece
CN108955492A (en) * 2018-08-15 2018-12-07 重庆青山工业有限责任公司 Measure the method and device of axis tooth part straight-tooth chamfer machining residual volume
CN111043976A (en) * 2019-12-10 2020-04-21 安徽瑞之星电缆集团有限公司 Cable detection device
CN113701598A (en) * 2021-08-26 2021-11-26 四川川昊精工机械有限公司 Even number ditch screw thread pitch diameter comparison measuring tool
CN113701598B (en) * 2021-08-26 2024-01-19 四川川昊精工机械有限公司 Even number ditch screw pitch diameter comparison measuring tool
CN114152165A (en) * 2021-11-29 2022-03-08 上海中船三井造船柴油机有限公司 Accurate measurement device and method for super-large-size hole
CN114777622A (en) * 2022-05-12 2022-07-22 四川英诺航空科技有限公司 Screw tap front angle measuring device and measuring method

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